/* ===== RESET & BASE STYLES (Modern minimal chat UI) ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* Colors - Dark Theme (Default) */
    --bg-primary: #0f172a;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --accent-primary: #3b82f6;
    --accent-secondary: #60a5fa;
    --border: #1e293b;
    --hover: #1a1f2e;
    --active: #192038;
    
    /* Status Colors */
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --online: #22c55e;
    
    /* Spacing & Sizing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 24px;
    --spacing-3xl: 32px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;
    
    /* Typography */
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-base: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    --font-size-2xl: 20px;
    --font-size-3xl: 24px;
    --font-size-4xl: 28px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s ease;
    
    /* Shadows - sušvelninti minimalistiškam dizainui */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.12);
    --shadow-md: 0 4px 10px rgba(15, 23, 42, 0.18);
    --shadow-lg: 0 12px 30px rgba(15, 23, 42, 0.25);
    --shadow-xl: 0 18px 50px rgba(15, 23, 42, 0.32);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    --gradient-bg: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    --gradient-card: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    
    /* Z-Index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* inert polyfill fallback styles: prevent pointer events and focus for inert elements */
[inert] {
    pointer-events: none;
    user-select: none;
    -webkit-user-select: none;
    touch-action: none;
}

[inert] * {
    pointer-events: none !important;
}

/* Screen reader only - paslėpti elementus vizualiai, bet palikti prieinamus screen reader'ams */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Light Theme */
:root[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --hover: #f1f5f9;
    --active: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* ===== BASE TYPOGRAPHY & LAYOUT ===== */
html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    letter-spacing: 0.3px;
    line-height: 1.5;
    font-size: var(--font-size-lg);
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    max-width: 100vw;
    overflow-x: hidden;
}

/* Safe area support for notched devices */
@supports (padding: max(0px)) {
    body {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
    }
}

/* Prevent zoom on input focus for iOS */
@supports (-webkit-touch-callout: none) {
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="search"],
    textarea {
        font-size: var(--font-size-lg) !important;
        -webkit-appearance: none;
        appearance: none;
        -webkit-border-radius: 0;
        border-radius: 0;
    }
}

/* Better mobile viewport handling */
@media screen and (max-width: 768px) {
    html, body {
        width: 100%;
        height: 100%;
        overflow: auto; /* allow native scrolling; container will handle layout */
        -webkit-overflow-scrolling: touch;
    }
}

/* ===== UTILITY CLASSES ===== */
.container {
    display: flex;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    max-width: 100vw;
    position: relative;
        min-width: 0;
        min-height: 0;
}

/* Touch-friendly utilities */
.touch-target {
    min-height: 44px;
    min-width: 44px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.no-select {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ===== COMMON COMPONENTS (neutralūs, be perteklinių efektų) ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    text-decoration: none;
    white-space: nowrap;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-primary);
}

.btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--accent-secondary) 0%, #2563eb 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-color: var(--border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--hover);
    color: var(--text-primary);
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* Form elements */
.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition-normal);
    touch-action: manipulation;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-input:focus {
    border-color: var(--accent-primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

/* Avatar component */
.avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid var(--accent-primary);
}

.avatar-sm {
    width: 32px;
    height: 32px;
}

.avatar-lg {
    width: 60px;
    height: 60px;
}

/* Status indicator */
.status-indicator {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 14px;
    height: 14px;
    background: var(--online);
    border: 2px solid var(--bg-secondary);
    border-radius: var(--radius-full);
    box-shadow: 0 0 0 2px var(--border);
}

/* ===== MOBILE NAVIGATION ===== */
.mobile-nav-toggle {
    display: none;
    position: relative;
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-size: var(--font-size-xl);
    cursor: pointer;
    z-index: var(--z-sticky);
    box-shadow: none;
    transition: background var(--transition-normal), color var(--transition-normal);
    flex-shrink: 0;
    padding: 0;
    align-items: center;
    justify-content: center;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.mobile-nav-toggle:hover {
    background: var(--hover);
    color: var(--text-primary);
}

.mobile-nav-toggle.active {
    color: var(--accent-primary);
}

.chat-header .mobile-nav-toggle {
    display: none;
}

@media (max-width: 768px) {
    .chat-header .mobile-nav-toggle {
        display: flex;
    }
}

/* ===== MOBILE OVERLAY ===== */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.mobile-overlay.active {
    display: block;
    opacity: 1;
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: 300px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transition: transform var(--transition-normal);
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        height: 100dvh;
        width: 300px;
        max-width: 80vw;
        z-index: var(--z-modal);
        transform: translateX(-100%);
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
        transition: transform var(--transition-normal);
        will-change: transform;
        background: var(--bg-secondary);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .btn-close-sidebar {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        min-width: 48px;
        min-height: 48px;
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
        position: relative;
        z-index: calc(var(--z-modal) + 1);
        background: rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-full);
        transition: all var(--transition-fast);
    }
    
    .btn-close-sidebar:hover {
        background: rgba(255, 255, 255, 0.2);
        transform: scale(1.05);
    }
    
    .sidebar-header {
        position: sticky;
        top: 0;
        z-index: var(--z-sticky);
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border);
        padding: var(--spacing-lg) var(--spacing-lg);
        padding-top: calc(var(--spacing-lg) + env(safe-area-inset-top));
    }
    
    .sidebar-header h2 {
        font-size: var(--font-size-xl);
        font-weight: 700;
    }
    
    /* Improve user info section for mobile */
    .user-info-section {
        padding: var(--spacing-lg);
        border-bottom: 1px solid var(--border);
        background: var(--bg-tertiary);
    }
    
    .user-info-inner {
        display: flex;
        align-items: center;
        gap: var(--spacing-md);
    }

    .user-info-section .avatar {
        width: 48px;
        height: 48px;
        border-width: 3px;
    }
    
    .user-info-section .online-status {
        width: 16px;
        height: 16px;
        border-width: 3px;
    }
    
    /* Improve conversation items for mobile */
    .conversation-item,
    .channel-item {
        min-height: 56px;
        padding: 12px var(--spacing-lg);
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
        transition: all var(--transition-fast);
        margin: 2px var(--spacing-md);
        border-radius: var(--radius-md);
    }
    
    .conversation-item:hover,
    .channel-item:hover {
        background: var(--hover);
        transform: translateX(4px);
    }
    
    .conversation-item .avatar {
        width: 40px;
        height: 40px;
    }
    
    .conversation-name {
        font-size: 16px;
        font-weight: 600;
    }
    
    .conversation-preview {
        font-size: 13px;
        margin-top: 4px;
    }
    
    /* Improve sections for mobile */
    .section-header {
        padding: 12px var(--spacing-lg);
        font-size: 13px;
        font-weight: 700;
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }
    
    .section-header:hover {
        background: var(--hover);
    }
    
    /* Improve search section for mobile */
    .search-section {
        padding: var(--spacing-lg);
        border-bottom: 1px solid var(--border);
    }
    
    .search-input {
        padding: 12px 16px;
        font-size: 16px; /* Prevent zoom on iOS */
        border-radius: 24px;
        background: var(--bg-tertiary);
        border: 1px solid var(--border);
    }
    
    .search-input:focus {
        border-color: var(--accent-primary);
        background: var(--bg-primary);
        box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
    }
    
    /* Improve actions section for mobile */
    .actions-section {
        padding: var(--spacing-lg);
        border-top: 1px solid var(--border);
        margin-top: auto;
        background: var(--bg-tertiary);
    }
    
    .btn-primary {
        min-height: 52px;
        font-size: 16px;
        font-weight: 700;
        border-radius: var(--radius-lg);
        box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
        transition: all var(--transition-normal);
    }
    
    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
    }
    
    body.sidebar-open {
        overflow: hidden;
        position: fixed;
        width: 100%;
        height: 100%;
        touch-action: none;
    }
    
    @supports (padding: max(0px)) {
        .sidebar {
            padding-left: max(0px, env(safe-area-inset-left));
        }
    }
    
    .mobile-overlay {
        background: rgba(0, 0, 0, 0.4);
    }
}

@media (max-width: 480px) {
    .sidebar {
        width: 280px;
        max-width: 85vw;
    }
    
    .sidebar-header {
        padding: var(--spacing-md) var(--spacing-lg);
        padding-top: calc(var(--spacing-md) + env(safe-area-inset-top));
    }
    
    .sidebar-header h2 {
        font-size: var(--font-size-lg);
    }
    
    .btn-close-sidebar {
        width: 44px;
        height: 44px;
        font-size: var(--font-size-lg);
    }
    
    .user-info-section {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .user-info-section .avatar {
        width: 44px;
        height: 44px;
    }
    
    .conversation-item,
    .channel-item {
        min-height: 52px;
        padding: 10px var(--spacing-lg);
        margin: 1px var(--spacing-sm);
    }
    
    .conversation-item .avatar {
        width: 36px;
        height: 36px;
    }
    
    .conversation-name {
        font-size: 15px;
    }
    
    .search-section {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .search-input {
        padding: 10px 14px;
        font-size: 16px;
    }
    
    .actions-section {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .btn-primary {
        min-height: 48px;
        font-size: 15px;
    }
}

.sidebar-header {
    padding: var(--spacing-xl) var(--spacing-lg);
    border-bottom: 2px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
}

.logo-section {
    flex: 1;
}

.sidebar-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--accent-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sidebar-header h2 i {
    font-size: var(--font-size-2xl);
}

.btn-menu {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    transition: color var(--transition-normal), background var(--transition-normal);
}

.btn-menu:hover {
    color: var(--text-primary);
    background: var(--hover);
}

.btn-close-sidebar {
    display: none;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    transition: color var(--transition-normal), background var(--transition-normal);
}

.btn-close-sidebar:hover {
    color: var(--text-primary);
    background: var(--hover);
}

/* ===== SEARCH SECTION ===== */
.search-section {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.search-input {
    width: 100%;
    padding: 10px var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    border-radius: 20px;
    outline: none;
    transition: border-color var(--transition-normal), background var(--transition-normal);
}

.search-input:focus {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.search-input::placeholder {
    color: var(--text-muted);
}

/* ===== SECTION STYLES ===== */
.conversations-section,
.groups-section,
.channels-section {
    border-bottom: 1px solid var(--border);
}

.section-header {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: background var(--transition-normal);
}

.section-header:hover {
    background: var(--hover);
}

.section-header i {
    font-size: var(--font-size-sm);
    transition: transform var(--transition-normal);
}

.section-badge {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-left: auto;
    font-weight: 400;
}

/* ===== CONVERSATIONS ===== */
.conversation-item {
    padding: 10px var(--spacing-md);
    display: flex;
    gap: var(--spacing-md);
    cursor: pointer;
    border-radius: var(--radius-md);
    margin: 0 var(--spacing-sm) 6px var(--spacing-sm);
    transition: background var(--transition-normal);
    align-items: center;
}

.conversation-item:hover {
    background: linear-gradient(135deg, var(--hover) 0%, rgba(59, 130, 246, 0.05) 100%);
    transform: translateX(4px);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.1);
}

.avatar-container {
    position: relative;
    width: 44px;
    height: 44px;
    flex-shrink: 0;
}

.avatar {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid var(--accent-primary);
}

.online-status {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 14px;
    height: 14px;
    background-color: var(--online);
    border: 2px solid var(--bg-secondary);
    border-radius: var(--radius-full);
    box-shadow: 0 0 0 2px var(--border);
}

.conversation-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.conversation-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
    margin-bottom: 2px;
}

.conversation-preview {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 2px;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* ===== CHANNELS ===== */
.channel-group-header {
    padding: 10px var(--spacing-lg);
    background: var(--active);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: var(--radius-sm);
    margin: 4px var(--spacing-sm);
    border-left: 3px solid var(--accent-primary);
}

.group-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
}

.online-badge {
    background: var(--accent-primary);
    color: white;
    padding: 2px var(--spacing-sm);
    border-radius: 12px;
    font-size: var(--font-size-sm);
    font-weight: 700;
}

.channel-item {
    padding: 10px var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
    border-radius: var(--radius-sm);
    margin: 2px var(--spacing-sm);
    transition: background var(--transition-normal);
    font-size: var(--font-size-base);
    color: var(--text-primary);
}

.channel-item:hover {
    background: var(--hover);
}

.channel-icon {
    color: var(--accent-primary);
    font-size: var(--font-size-base);
    min-width: var(--font-size-base);
}

.channel-name {
    flex: 1;
    font-weight: 500;
}

.channel-count {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: 600;
}

/* ===== SIDEBAR BOTTOM ===== */
.sidebar-bottom {
    padding: var(--spacing-lg) var(--spacing-md);
    margin-top: auto;
}

.button-row {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.invite-input {
    flex: 1;
    padding: 10px var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color var(--transition-normal);
}

.invite-input:focus {
    border-color: var(--accent-primary);
}

.invite-input::placeholder {
    color: var(--text-muted);
}

.section-label {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
}

.section-divider {
    height: 1px;
    background: var(--border);
    margin: var(--spacing-sm) var(--spacing-md);
}

.btn-primary,
.btn-action {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 48px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 700;
    cursor: pointer;
    transition: background var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn-primary:hover,
.btn-action:hover {
    background: var(--accent-secondary);
}

.btn-primary i {
    font-size: var(--font-size-base);
}

.btn-action i {
    font-size: var(--font-size-lg);
}

/* ===== LAYOUT: 3-COLUMN APP (CLEAN, STABLE) ===== */
.container {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr) 280px;
    height: 100vh;
    height: 100dvh;
    max-width: 100vw;
    overflow: hidden;
    position: relative;
    min-width: 0;
    min-height: 0;
    background: var(--bg-primary);
    gap: 0;
}

.main-content {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    border-right: 1px solid var(--border);
    min-width: 0;
    min-height: 0;
    overflow: hidden;
}

.sidebar {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-right: 2px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    min-width: 0;
    min-height: 0;
}

/* Right sidebar (online users) */
.right-sidebar {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-left: 2px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    min-width: 0;
    min-height: 0;
}

/* Right sidebar header */
.right-sidebar .sidebar-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.right-sidebar .sidebar-header h2 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Right sidebar list */
.right-sidebar .section-header {
    padding: var(--spacing-xs) var(--spacing-lg);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    background: transparent;
    cursor: default;
}

.right-sidebar .conversation-item {
    padding: 6px var(--spacing-md);
    margin: 2px var(--spacing-sm);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.right-sidebar .conversation-item:hover {
    background: var(--hover);
}

.right-sidebar .avatar {
    width: 28px;
    height: 28px;
    border-width: 2px;
}

.right-sidebar .conversation-name {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-primary);
}

.right-sidebar .conversation-preview {
    font-size: 10px;
    color: var(--text-muted);
}

/* Mobile: focus on center, left sidebar as drawer, hide right */
/* Tablet and below - hide right sidebar, adjust grid */
@media (max-width: 1024px) {
    .container {
        grid-template-columns: 320px minmax(0, 1fr);
    }

    .right-sidebar {
        display: none;
    }
}

/* Mobile - make sidebar overlay */
@media (max-width: 768px) {
    .container {
        display: flex;
        flex-direction: column;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        height: 100dvh;
        width: 280px;
        max-width: 80vw;
        background: var(--bg-secondary);
        box-shadow: 4px 0 24px rgba(0,0,0,0.4);
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        z-index: var(--z-modal);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .right-sidebar {
        display: none;
    }
}

/* ===== CHAT HEADER (Fixed, švarus) ===== */
.chat-header {
    padding: var(--spacing-md) var(--spacing-2xl);
    border-bottom: 2px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    gap: var(--spacing-md);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header-left h3 {
    font-size: var(--font-size-xl);
    margin-bottom: 6px;
    font-weight: 700;
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.typing-indicator {
    margin-top: 6px;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.header-left h3 i {
    opacity: 0.9;
}

.channel-topic {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: 400;
}

.header-right {
    display: flex;
    gap: 8px;
}

.header-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--hover);
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.header-btn:hover {
    background: var(--active);
    color: var(--accent-primary);
    transform: scale(1.05);
}

.header-btn:active {
    transform: scale(0.95);
}

/* Mobile header adjustments to prevent overflow */
@media (max-width: 768px) {
    .chat-header {
        padding: var(--spacing-md) var(--spacing-lg);
        gap: var(--spacing-sm);
    }

    .header-left {
        flex: 1 1 auto;
        min-width: 0;
        overflow: hidden;
    }

    .header-left h3 {
        font-size: 18px;
        white-space: nowrap;
        text-overflow: ellipsis;
        overflow: hidden;
        margin-bottom: 4px;
    }

    .channel-topic { display: none; }

    .header-right { flex-shrink: 0; }

    .header-btn { padding: 8px; min-width: 40px; }
}

.header-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: var(--font-size-lg);
    cursor: pointer;
    padding: 8px var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: color var(--transition-normal), background var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.header-btn i {
    font-size: var(--font-size-base);
}

.header-btn:hover {
    color: var(--text-primary);
    background: var(--hover);
}

.messages-container {
    flex: 1 1 0%;
    min-width: 0;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-xl) var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
    max-width: 100%;
    padding-bottom: var(--spacing-lg);
    scrollbar-width: thin;
    scrollbar-color: rgba(148,163,253,0.4) transparent;
    overflow-anchor: auto;
}

/* Message Wrapper - Messenger Style */
.message-wrapper {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-width: 75%;
    animation: messageSlideIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    margin-bottom: 12px;
    /* Reserve space for the reactions bar only when reactions exist */
    padding-bottom: 8px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* Add extra padding when reactions are present */
.message-wrapper .message-reactions:not(:empty) {
    margin-bottom: 24px;
}

.message-content {
    display: flex;
    gap: 8px;
    align-items: flex-end;
    width: 100%;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.message-wrapper.message-left {
    align-self: flex-start;
}

.message-wrapper.message-right {
    align-self: flex-end;
}

.message-wrapper.message-right .message-content {
    flex-direction: row-reverse;
}

/* Enhanced message spacing for desktop */
@media (min-width: 769px) {
    .message-wrapper {
        margin-bottom: 16px;
        gap: 6px;
    }
    
    .message-content {
        gap: 10px;
    }
    
    .message-wrapper .message-reactions:not(:empty) {
        margin-bottom: 28px;
    }
}

/* ===== MESSAGE BUBBLES (Slack/Discord tipo, švarūs) ===== */
.message-bubble {
    display: flex;
    flex-direction: column;
    padding: 10px 14px;
    border-radius: 14px;
    max-width: 420px;
    min-width: 32px;
    position: relative;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-fast);
    overflow: visible;
    cursor: default;
    word-break: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.message-bubble:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.message-bubble:hover .reaction-trigger {
    opacity: 1;
    pointer-events: all;
}

.message-left .message-bubble {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, rgba(148, 163, 253, 0.08) 100%);
    color: var(--text-primary);
    border-radius: 14px 14px 4px 14px;
    border: 1px solid rgba(148, 163, 253, 0.12);
}

.message-left .message-bubble:hover {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, rgba(148, 163, 253, 0.12) 100%);
    border-color: rgba(148, 163, 253, 0.2);
}

.message-right .message-bubble {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
    border-radius: 14px 4px 14px 14px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.message-right .message-bubble:hover {
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* Enhanced hover effects for desktop */
@media (min-width: 769px) {
    .message-bubble:hover {
        transform: translateY(-2px);
    }
}

/* note: padding to make room for timestamp is applied only on small screens */

/* Message Username - Messenger Style */
/* ===== MESSAGE USERNAME ===== */
.message-username {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 4px;
    display: block;
    letter-spacing: 0.5px;
}

.message-wrapper.message-left .message-username {
    padding-left: 36px;
    text-align: left;
}

.message-wrapper.message-right .message-username {
    padding-right: 36px;
    padding-left: 0;
    text-align: right;
    color: rgba(255, 255, 255, 0.9);
}

.clickable-username {
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 700;
}

.clickable-username:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
    filter: brightness(1.2);
}

.clickable-username:hover {
    color: var(--accent-primary);
    text-decoration: underline;
}

/* Make message avatars clickable */
.message-avatar {
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: var(--radius-full);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--accent-primary);
}

.message-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-full);
}

.message-avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 0 0 2px var(--accent-primary);
}

/* ===== MESSAGE TEXT ===== */
.message-text {
    word-break: break-word;
    font-size: 15px;
    line-height: 1.5;
    letter-spacing: 0.3px;
    color: inherit;
    font-weight: 400;
}

.message-right .message-text {
    color: #ffffff;
}

.message-left .message-text {
    color: var(--text-primary);
}

/* ===== MESSAGE TIME ===== */
.message-time {
    font-size: 11px;
    margin-top: 4px;
    opacity: 0.8;
    font-weight: 400;
    display: block;
}

.message-left .message-time {
    color: #6b7280;
}

.message-right .message-time {
    color: rgba(255, 255, 255, 0.9);
}

/* Position timestamps as part of the bubble content (static) to avoid overlap */
.message-bubble .message-time {
    position: static;
    margin: 4px 0 0 0;
    opacity: 0.75;
    font-size: 10px;
    text-align: right;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* Enhanced timestamp styling for better readability */
.message-left .message-bubble .message-time {
    color: #6b7280;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.message-right .message-bubble .message-time {
    color: rgba(255, 255, 255, 0.85);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Desktop timestamp improvements */
@media (min-width: 769px) {
    .message-bubble .message-time {
        font-size: 12px;
        margin-top: 10px;
        opacity: 0.8;
    }
    
    .message-left .message-bubble .message-time {
        color: #4b5563;
    }
    
    .message-right .message-bubble .message-time {
        color: rgba(255, 255, 255, 0.9);
    }
}

/* Make GIF images fluid and constrained by message wrapper width */
.gif-message img {
    width: 100%;
    height: auto;
    max-height: 50vh; /* Prevent extremely tall GIFs on mobile */
    object-fit: cover;
    border-radius: 12px;
    display: block;
}

/* Screenshot/Image messages */
.image-message {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.image-message img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    display: block;
    max-height: 50vh;
    object-fit: cover;
}

.image-caption {
    padding: var(--spacing-xs) 0;
    color: var(--text-primary);
    font-size: var(--font-size-base);
}

.message-image {
    max-width: 300px;
    max-height: 300px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    object-fit: contain;
}

.message-image:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.image-expire-label {
    margin-top: 6px;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.message-bubble.has-image {
    padding: var(--spacing-sm);
    background: transparent;
}

/* Full-size image viewer modal */
.image-view-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.image-view-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    cursor: pointer;
}

.image-view-content {
    position: relative;
    max-width: 95%;
    max-height: 95%;
    z-index: 1;
}

.image-view-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    font-size: 24px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.image-view-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.image-view-full {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: var(--radius-md);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* Desktop avatar sizing */
@media (min-width: 769px) {
    .message-avatar { width: 40px; height: 40px; }
}

/* On small screens allow wider bubbles and better spacing */
@media (max-width: 768px) {
    .message-wrapper { max-width: 90%; }
    .messages-container { 
        padding: var(--spacing-md); 
        padding-bottom: calc(140px + env(safe-area-inset-bottom, 0px)); 
    }
    /* Improved bubble sizing on mobile for better readability */
    .message-bubble:not(.has-gif):not(.has-image) { 
        padding: 8px 12px; 
        max-width: 85%;
    }
    .message-left .message-bubble:not(.has-gif):not(.has-image) { padding-right: 12px; }
    .message-right .message-bubble:not(.has-gif):not(.has-image) { padding-left: 12px; }
    .message-avatar { width: 36px; height: 36px; }
}

@media (max-width: 520px) {
    .sidebar {
        width: 280px;
        max-width: 85vw;
    }
    
    .sidebar-header {
        padding: var(--spacing-md) var(--spacing-lg);
        padding-top: calc(var(--spacing-md) + env(safe-area-inset-top));
    }
    
    .sidebar-header h2 {
        font-size: var(--font-size-lg);
    }
    
    .btn-close-sidebar {
        width: 44px;
        height: 44px;
        font-size: var(--font-size-lg);
    }
    
    .user-info-section {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .user-info-section .avatar {
        width: 44px;
        height: 44px;
    }
    
    .conversation-item,
    .channel-item {
        min-height: 52px;
        padding: 10px var(--spacing-lg);
        margin: 1px var(--spacing-sm);
    }
    
    .conversation-item .avatar {
        width: 36px;
        height: 36px;
    }
    
    .conversation-name {
        font-size: 15px;
    }
    
    .search-section {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .search-input {
        padding: 10px 14px;
        font-size: 16px;
    }
    
    .actions-section {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .btn-primary {
        min-height: 48px;
        font-size: 15px;
    }
}

/* ===== GIF GRID & RESULTS ===== */
.gif-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 8px;
    max-height: 400px;
    overflow-y: auto;
    padding: 8px;
    scrollbar-width: thin;
    scrollbar-color: rgba(148,163,253,0.4) transparent;
}

.gif-result-item {
    width: 100%;
    height: 120px;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, rgba(59, 130, 246, 0.05) 100%);
    border: 1px solid var(--border);
    position: relative;
}

.gif-result-item:hover {
    transform: scale(1.05) translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
    border-color: var(--accent-primary);
}

.gif-result-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-fast);
}

.gif-result-item:hover img {
    transform: scale(1.1);
}

.gif-loading {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
    font-size: var(--font-size-lg);
}

.gif-loading i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* Mobile GIF grid */
@media (max-width: 768px) {
    .gif-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
        max-height: 300px;
    }
    
    .gif-result-item {
        height: 100px;
    }
}

@media (max-width: 480px) {
    .gif-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 4px;
    }
    
    .gif-result-item {
        height: 80px;
    }
}

/* ===== GIPHY Modal ===== */
.gif-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.gif-modal.open {
    display: block;
    opacity: 1;
}

.gif-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.78);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.gif-modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(940px, 95%);
    max-height: 75vh;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(148, 163, 253, 0.15);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.gif-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
    background: var(--bg-tertiary);
}

.gif-modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.gif-modal-search {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.gif-modal-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border);
    background: var(--bg-tertiary);
    text-align: center;
}

.gif-modal-footer small {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* Mobile GIF modal */
@media (max-width: 768px) {
    .gif-modal-content {
        width: 100vw;
        max-height: 70vh;
        border-radius: 18px 18px 0 0;
        padding: 12px 10px 10px;
    }

    .gif-modal-header {
        padding: var(--spacing-md);
    }

    .gif-modal-header h3 {
        font-size: var(--font-size-lg);
    }

    .gif-modal-search {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .gif-modal-footer {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* ===== IMAGE PREVIEW MODAL ===== */
.image-preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: fadeIn 0.2s ease;
}

.image-preview-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    max-width: 90%;
    max-height: 90%;
    width: 600px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.image-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
    background: var(--bg-primary);
}

.image-preview-header h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.image-preview-body {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    overflow-y: auto;
}

.preview-image {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--radius-md);
    object-fit: contain;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.image-info {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin: 0;
}

.image-preview-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border);
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.image-caption-input {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--font-size-base);
}

.image-caption-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.preview-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.btn-primary, .btn-secondary {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: inherit;
    font-size: var(--font-size-base);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-secondary);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--border);
}

@media (max-width: 768px) {
    .image-preview-content {
        width: 95%;
        max-height: 95%;
    }
    
    .preview-image {
        max-height: 300px;
    }
}

/* ===== UTILITY CLASSES FOR REMOVED INLINE STYLES ===== */

/* User Info Section */
.user-info-border {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.user-info-flex {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-info-flex-1 {
    flex: 1;
}

.user-info-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
}

.user-info-status {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--online);
    border-radius: var(--radius-full);
    display: inline-block;
}

.logout-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: var(--font-size-xl);
    transition: color var(--transition-fast);
}

.logout-link:hover {
    color: var(--text-primary);
}

/* Actions Section */
.actions-border {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border);
    margin-top: auto;
}

/* Actions layout: vertical stack of action buttons, aligned at bottom of sidebar */
.actions-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border);
    margin-top: auto; /* keeps actions anchored at the bottom */
    background: var(--bg-tertiary);
}

.actions-section .section-label {
    color: var(--text-muted);
    font-weight: 700;
    font-size: var(--font-size-sm);
    letter-spacing: 0.4px;
    text-transform: uppercase;
    padding-bottom: 4px;
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    width: 100%;
    padding: 10px 14px;
    justify-content: flex-start;
    border-radius: var(--radius-md);
    text-align: left;
}

.action-btn i {
    width: 28px;
    min-width: 28px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-size: var(--font-size-lg);
}

.action-btn span {
    display: inline-block;
    flex: 1;
}

/* Hover/focus states for action buttons */
.action-btn:hover,
.action-btn:focus {
    transform: translateY(-2px);
    background: var(--hover);
}

/* Small screens: slightly more compact buttons and smaller padding */
@media (max-width: 480px) {
    .actions-section {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    .action-btn { padding: 10px 12px; }
}

/* Back Button */
.back-btn-hidden {
    display: none;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* File Input Hidden */
.file-input-hidden {
    display: none;
}

/* Username Tag */
.username-tag {
    color: var(--accent-primary);
    font-size: var(--font-size-sm);
    font-weight: 700;
}

/* Online Status Inline */
.conversation-status {
    width: 8px;
    height: 8px;
    background-color: var(--online);
    border-radius: var(--radius-full);
    display: inline-block;
}

/* Conversation Empty State */
.conversation-empty {
    opacity: 0.6;
    cursor: default;
}

.conversation-error {
    opacity: 0.6;
}

/* Clickable Avatar */
.avatar-clickable {
    cursor: pointer;
}

/* Tooltip Icon */
.tooltip-icon {
    color: var(--accent-primary);
    font-size: var(--font-size-sm);
}

/* ===== INPUT AREA STYLING ===== */

.input-area {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

/* Input Controls */
.input-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
}

/* Control Button (emoji, attach, gif, etc) */
.control-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.control-btn:hover {
    background: var(--hover);
    color: var(--accent-primary);
    transform: scale(1.08);
}

.control-btn:active {
    background: var(--active);
    transform: scale(0.95);
}

/* Emoji Button specific tweaks */
#emojiBtn {
    width: 44px;
    height: 44px;
}

#emojiBtn i {
    font-size: 18px;
}

/* More Panel (dropdown for additional options) */
.more-panel {
    position: absolute;
    bottom: 100%;
    left: 0;
    transform-origin: center bottom;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-md);
    opacity: 0;
    pointer-events: none;
    transform: translateY(4px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

.more-panel[aria-hidden="false"] {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.more-panel .control-btn {
    width: 36px;
    height: 36px;
    font-size: var(--font-size-base);
}

/* Message Input */
.message-input {
    width: 100%;
    min-height: 40px;
    max-height: 120px;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--font-size-base);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    resize: vertical;
    outline: none;
}

.message-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.message-input::placeholder {
    color: var(--text-muted);
}

/* Send Button */
.send-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--accent-primary);
    color: white;
    font-size: var(--font-size-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform 0.15s ease, background 0.2s ease, opacity 0.2s ease;
    flex-shrink: 0;
}

.send-btn:hover {
    background: var(--accent-secondary);
    transform: scale(1.08);
}

.send-btn:active {
    transform: scale(0.95);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Mobile Input Area - Fixed positioning to prevent keyboard issues */
@media (max-width: 768px) {
    .input-area {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        padding: var(--spacing-md);
        padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom, 0px));
        gap: var(--spacing-sm);
        z-index: var(--z-sticky);
        box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.15);
    }

    .message-input {
        min-height: 40px;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 16px; /* Prevent zoom on iOS */
    }

    .control-btn,
    .send-btn {
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
        font-size: var(--font-size-base);
    }

    .more-panel {
        bottom: calc(100% + 4px);
    }

    .more-panel .control-btn {
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
    }
}

/* On very small screens, ensure the more panel is fixed above the input and stays visible above keyboard */
@media (max-width: 420px) {
    .more-panel {
        position: fixed !important;
        left: calc(var(--spacing-md));
        right: calc(var(--spacing-md));
        bottom: calc(56px + env(safe-area-inset-bottom));
        margin-bottom: 0;
        z-index: var(--z-popover);
        transform: translateY(0);
    }

    /* Also pin mention autocomplete to avoid being pushed off-screen */
    .mention-autocomplete {
        position: fixed !important;
        left: calc(var(--spacing-md));
        right: calc(var(--spacing-md));
        bottom: calc(56px + env(safe-area-inset-bottom) + 48px); /* main input height + some buffer */
        max-height: 40vh;
        box-shadow: 0 -4px 24px rgba(0,0,0,0.2);
    }
}

/* Textarea Scroll Styling */
.message-input::-webkit-scrollbar {
    width: 6px;
}

.message-input::-webkit-scrollbar-track {
    background: transparent;
}



.message-input::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
}

.message-input::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ===== SIDEBAR ENHANCEMENTS ===== */

/* Left Sidebar Improvements */
.sidebar {
    width: 320px;
    flex-shrink: 0;
}

.sidebar-header {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border);
}

.sidebar-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.sidebar-header h2 i {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Search Section */
.search-section {
    padding: var(--spacing-lg);
    background: var(--bg-primary);
}

.search-input {
    width: 100%;
    padding: 10px var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 2px solid var(--border);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    border-radius: 20px;
    outline: none;
    transition: all var(--transition-normal);
}

.search-input:focus {
    border-color: var(--accent-primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.search-input::placeholder {
    color: var(--text-muted);
}

/* Conversations Section */
.conversations-section,
.channels-section,
.groups-section {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.section-header {
    padding: var(--spacing-lg) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: sticky;
    top: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    z-index: 10;
}

.section-header:hover {
    background: var(--hover);
    color: var(--accent-primary);
}

.section-header i {
    font-size: var(--font-size-xs);
    transition: transform var(--transition-normal);
}

.section-header.collapsed i {
    transform: rotate(-90deg);
}

.section-badge {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-left: auto;
    font-weight: 600;
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 12px;
}

/* Conversation Items */
.conversation-item {
    padding: 10px var(--spacing-md);
    display: flex;
    gap: var(--spacing-md);
    cursor: pointer;
    border-radius: var(--radius-md);
    margin: 2px var(--spacing-sm);
    transition: all var(--transition-normal);
    align-items: center;
    position: relative;
}

.conversation-item:hover {
    background: linear-gradient(135deg, var(--hover) 0%, rgba(59, 130, 246, 0.05) 100%);
    transform: translateX(4px);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.1);
}

.conversation-item.active {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
}

.conversation-item.active .conversation-name,
.conversation-item.active .conversation-preview {
    color: white;
}

.avatar-container {
    position: relative;
    width: 44px;
    height: 44px;
    flex-shrink: 0;
}

.avatar {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid var(--accent-primary);
    transition: all var(--transition-fast);
}

.conversation-item:hover .avatar {
    border-color: var(--accent-secondary);
    transform: scale(1.05);
}

.online-status {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 14px;
    height: 14px;
    background-color: var(--online);
    border: 2px solid var(--bg-secondary);
    border-radius: var(--radius-full);
    box-shadow: 0 0 0 2px var(--border);
    animation: statusPulse 2s infinite;
}

@keyframes statusPulse {
    0%, 100% { box-shadow: 0 0 0 2px var(--border); }
    50% { box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2); }
}

.conversation-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
}

.conversation-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color var(--transition-fast);
}

.conversation-preview {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition-fast);
}

.online-dot {
    width: 8px;
    height: 8px;
    background-color: var(--online);
    border-radius: var(--radius-full);
    display: inline-block;
    flex-shrink: 0;
}

/* Right Sidebar */
.right-sidebar {
    width: 280px;
    flex-shrink: 0;
    background: var(--bg-secondary);
    border-left: 2px solid var(--border);
}

.right-sidebar .sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 2px solid var(--border);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.right-sidebar .sidebar-header .logo-section {
    flex: 1;
}

.right-sidebar .sidebar-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.right-sidebar .sidebar-header h2 i {
    color: var(--accent-primary);
}

.right-sidebar .conversations-section {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.right-sidebar .section-header {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.right-sidebar .conversation-item {
    padding: 8px var(--spacing-md);
    margin: 3px var(--spacing-sm);
}

.right-sidebar .avatar-container {
    width: 36px;
    height: 36px;
}

.right-sidebar .avatar {
    border-width: 1px;
}

.right-sidebar .conversation-name {
    font-size: 13px;
}

.right-sidebar .conversation-preview {
    font-size: 11px;
}

.right-sidebar #onlineUsersRight {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: var(--spacing-sm) 0;
}

/* Username Tag in Right Sidebar */
.username-tag-right {
    color: var(--accent-primary);
    font-size: 11px;
    font-weight: 700;
    margin-left: auto;
}

/* Mobile Sidebar Adjustments */
@media (max-width: 1200px) {
    .right-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        width: 280px;
        height: 100vh;
        z-index: var(--z-fixed);
        transition: left var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }

    .sidebar.active {
        left: 0;
    }

    .right-sidebar {
        display: none !important;
    }
}

/* Sidebar Scrollbar Styling */
.sidebar::-webkit-scrollbar,
.right-sidebar::-webkit-scrollbar,
.conversations-section::-webkit-scrollbar,
.right-sidebar #onlineUsersRight::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track,
.right-sidebar::-webkit-scrollbar-track,
.conversations-section::-webkit-scrollbar-track,
.right-sidebar #onlineUsersRight::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb,
.right-sidebar::-webkit-scrollbar-thumb,
.conversations-section::-webkit-scrollbar-thumb,
.right-sidebar #onlineUsersRight::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover,
.right-sidebar::-webkit-scrollbar-thumb:hover,
.conversations-section::-webkit-scrollbar-thumb:hover,
.right-sidebar #onlineUsersRight::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ===== PORTFOLIO MODAL STYLES ===== */
.portfolio-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    z-index: var(--z-modal);
}

.portfolio-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.portfolio-modal.show .portfolio-modal-backdrop {
    opacity: 1;
}

.portfolio-modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    width: 90%;
    max-width: 500px;
    max-height: 85vh;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    opacity: 0;
    transition: all var(--transition-normal);
    overflow: hidden;
    z-index: calc(var(--z-modal) + 1);
}

.portfolio-modal.show .portfolio-modal-content {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.portfolio-close-btn {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 36px;
    height: 36px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
    font-size: var(--font-size-lg);
}

.portfolio-close-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

/* Portfolio Header */
.portfolio-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-lg);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-bottom: 1px solid var(--border);
    position: relative;
}

.portfolio-avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    border: 3px solid var(--accent-primary);
    object-fit: cover;
    flex-shrink: 0;
}

.portfolio-header-info {
    flex: 1;
}

.portfolio-header-info h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.portfolio-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.portfolio-status .status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--error);
}

.portfolio-status .status-dot.online {
    background: var(--success);
}

/* Portfolio Body - Scrollable */
.portfolio-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-2xl);
}

.portfolio-section {
    margin-bottom: var(--spacing-2xl);
}

.portfolio-section:last-child {
    margin-bottom: 0;
}

.portfolio-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.portfolio-section h3 i {
    color: var(--accent-primary);
    font-size: var(--font-size-xl);
}

/* Info Grid */
.portfolio-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.portfolio-info-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.info-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-value {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    font-weight: 500;
}

.info-value.status-online {
    color: var(--success);
}

.info-value.status-offline {
    color: var(--error);
}

/* Stats Grid */
.portfolio-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.stat-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-fast);
}

.stat-card:hover {
    border-color: var(--accent-primary);
    background: var(--active);
    transform: translateY(-2px);
}

.stat-icon {
    font-size: var(--font-size-2xl);
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: 500;
}

/* Description */
.portfolio-description {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: var(--font-size-base);
}

/* Portfolio Footer */
.portfolio-footer {
    padding: var(--spacing-lg) var(--spacing-2xl) var(--spacing-2xl);
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    background: var(--bg-secondary);
}

.portfolio-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    white-space: nowrap;
}

.portfolio-btn i {
    font-size: var(--font-size-base);
}

.portfolio-btn.btn-primary {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.portfolio-btn.btn-primary:hover {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.portfolio-btn.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border);
}

.portfolio-btn.btn-secondary:hover {
    background: var(--active);
    border-color: var(--text-secondary);
    transform: translateY(-1px);
}

.portfolio-btn.btn-call {
    background: var(--success);
    color: white;
    border-color: var(--success);
}

.portfolio-btn.btn-call:hover {
    background: #16a34a;
    border-color: #16a34a;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

/* Portfolio Scrollbar */
.portfolio-body::-webkit-scrollbar {
    width: 6px;
}

.portfolio-body::-webkit-scrollbar-track {
    background: transparent;
}

.portfolio-body::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.portfolio-body::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 480px) {
    .portfolio-modal-content {
        width: 95%;
        max-height: 90vh;
    }

    .portfolio-header {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .portfolio-avatar {
        width: 70px;
        height: 70px;
    }

    .portfolio-stats-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-info-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-footer {
        flex-direction: column;
    }

    .portfolio-btn {
        width: 100%;
    }
}

/* ===== RADIO PLAYER STYLES ===== */
/* Radio button in left sidebar */
.btn-radio {
    margin-top: var(--spacing-md);
}

.btn-radio:hover {
    background: var(--accent-secondary) !important;
}

.btn-radio.playing {
    background: var(--accent-primary) !important;
    animation: radioPulseSidebar 1.5s ease-in-out infinite;
}

@keyframes radioPulseSidebar {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Radio Modal */
.radio-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    z-index: var(--z-modal);
}

.radio-modal.open {
    display: flex;
}

.radio-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.radio-modal.open .radio-modal-backdrop {
    opacity: 1;
}

.radio-modal-content {
    position: relative;
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    margin: auto;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    transform: scale(0.95);
    transition: all var(--transition-normal);
    z-index: calc(var(--z-modal) + 1);
}

.radio-modal.open .radio-modal-content {
    opacity: 1;
    transform: scale(1);
}

.radio-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-2xl);
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
}

.radio-modal-header h2 {
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.radio-modal-header h2 i {
    color: var(--accent-primary);
}

.radio-close-btn {
    width: 36px;
    height: 36px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: var(--font-size-lg);
}

.radio-close-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

/* Radio Modal Body */
.radio-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

/* Radio Player Section */
.radio-player {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-2xl);
    text-align: center;
}

.radio-now-playing {
    margin-bottom: var(--spacing-2xl);
}

.radio-station-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.radio-station-url {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    word-break: break-all;
}

/* Radio Controls */
.radio-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.radio-btn {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--accent-primary);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all var(--transition-fast);
}

.radio-btn:hover {
    background: var(--accent-secondary);
    transform: scale(1.1);
}

.radio-play-btn, .radio-pause-btn {
    width: 56px;
    height: 56px;
    font-size: 24px;
}

/* Volume Control */
.radio-volume-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--bg-secondary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
}

.radio-volume-control i {
    color: var(--accent-primary);
    font-size: var(--font-size-lg);
}

.radio-volume-slider {
    width: 120px;
    height: 4px;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border);
    border-radius: 2px;
    outline: none;
}

.radio-volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: var(--radius-full);
    background: var(--accent-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.radio-volume-slider::-webkit-slider-thumb:hover {
    background: var(--accent-secondary);
    transform: scale(1.2);
}

.radio-volume-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: var(--radius-full);
    background: var(--accent-primary);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.radio-volume-slider::-moz-range-thumb:hover {
    background: var(--accent-secondary);
    transform: scale(1.2);
}

/* Radio Stations List */
.radio-stations h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.radio-stations h3 i {
    color: var(--accent-primary);
}

.radio-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-height: 300px;
    overflow-y: auto;
}

.radio-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.radio-item:hover {
    background: var(--active);
    border-color: var(--accent-primary);
}

.radio-item.active {
    background: var(--active);
    border-color: var(--accent-primary);
}

.radio-item.active .radio-item-btn {
    background: var(--accent-primary);
    color: white;
}

.radio-item-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
    text-align: left;
}

.radio-item-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
}

.radio-item-url {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    word-break: break-all;
}

.radio-item-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    margin-left: var(--spacing-md);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.radio-item-btn:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

/* Scrollbar for radio list */
.radio-list::-webkit-scrollbar {
    width: 6px;
}

.radio-list::-webkit-scrollbar-track {
    background: transparent;
}

.radio-list::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.radio-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 600px) {
    .radio-modal-content {
        width: 95%;
        max-height: 90vh;
        border-radius: var(--radius-lg);
    }

    .radio-modal-header {
        padding: var(--spacing-lg);
    }

    .radio-modal-header h2 {
        font-size: var(--font-size-xl);
    }

    .radio-modal-body {
        padding: var(--spacing-lg);
        gap: var(--spacing-lg);
    }

    .radio-player {
        padding: var(--spacing-lg);
    }

    .radio-controls {
        gap: var(--spacing-md);
    }

    .radio-volume-control {
        flex-direction: column;
        width: 100%;
    }

    .radio-volume-slider {
        width: 100%;
    }

    .radio-item {
        padding: var(--spacing-md);
    }

    .radio-item-name {
        font-size: var(--font-size-sm);
    }

    .radio-item-url {
        font-size: var(--font-size-xs);
    }
}

/* ===== CHECKERS / GAMES SECTION ===== */
.checkers-section-header {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--spacing-xl) 0 var(--spacing-md) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-primary);
}

.game-result-card {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-fast);
}

.game-result-card:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
    transform: translateY(-2px);
}

.game-players {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-md);
}

.player {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
}

.player-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--accent-primary);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.player-avatar:hover {
    transform: scale(1.1);
}

.player-name {
    color: var(--text-primary);
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: var(--font-size-base);
}

.vs-badge {
    color: var(--text-muted);
    font-weight: 700;
    font-size: var(--font-size-sm);
    padding: 0 var(--spacing-md);
}

.game-result {
    text-align: center;
    color: var(--accent-primary);
    font-weight: 600;
    font-size: var(--font-size-base);
    margin: var(--spacing-md) 0;
}

.game-date {
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.leaderboard-container {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.leaderboard-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border);
    transition: background-color var(--transition-fast);
}

.leaderboard-row:last-child {
    border-bottom: none;
}

.leaderboard-row:hover {
    background-color: var(--hover);
}

.rank {
    width: 40px;
    text-align: center;
    font-weight: 700;
    font-size: var(--font-size-lg);
    color: var(--accent-primary);
    min-width: 40px;
}

.leaderboard-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--accent-primary);
    cursor: pointer;
    flex-shrink: 0;
}

.player-info {
    flex: 1;
    min-width: 0;
}

.player-info .player-name {
    color: var(--text-primary);
    font-weight: 600;
    font-size: var(--font-size-base);
    margin-bottom: 2px;
}

.player-stats {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rating {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: var(--font-size-lg);
    min-width: 60px;
    text-align: center;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .game-players {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .player {
        width: 100%;
        justify-content: center;
        flex-direction: column;
        text-align: center;
    }

    .vs-badge {
        padding: var(--spacing-sm) 0;
    }

    .leaderboard-row {
        padding: var(--spacing-md);
    }

    .rating {
        min-width: 50px;
        font-size: var(--font-size-base);
    }

    .player-stats {
        font-size: var(--font-size-xs);
    }
}

/* ===== CHECKERS GAME STYLES ===== */

.checkers-game-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
}

.checkers-game-modal[aria-hidden="false"] {
    display: flex;
}

.checkers-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
}

.checkers-modal-content {
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.checkers-modal-header {
    padding: var(--spacing-xl) var(--spacing-2xl);
    border-bottom: 2px solid var(--border);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.checkers-modal-header h3 {
    font-size: var(--font-size-2xl);
    color: var(--accent-primary);
    font-weight: 700;
    margin: 0;
}

.checkers-game-info {
    flex: 1;
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.checkers-player-info {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
}

.checkers-turn-info {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--accent-primary);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.checkers-game-container {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    overflow-y: auto;
    flex: 1;
}

.checkers-board {
    width: 100%;
    max-width: 600px;
    aspect-ratio: 1;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    grid-template-rows: repeat(8, 1fr);
    border: 4px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    background: var(--bg-tertiary);
}

.checkers-square {
    position: relative;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.checkers-square.light {
    background: #f0d9b5;
}

.checkers-square.dark {
    background: #b58863;
}

.checkers-square.selected {
    background: #7fa650 !important;
    box-shadow: inset 0 0 0 3px rgba(127, 166, 80, 0.5);
}

.checkers-square.valid-move {
    background: #9bc97080 !important;
}

.checkers-square.valid-move::after {
    content: '';
    width: 30%;
    height: 30%;
    background: rgba(155, 201, 112, 0.8);
    border-radius: 50%;
}

.checkers-square:hover:not(.selected) {
    background: rgba(255, 255, 255, 0.1);
}

.checkers-piece {
    width: 80%;
    height: 80%;
    border-radius: 50%;
    border: 3px solid rgba(0, 0, 0, 0.3);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    cursor: grab;
    transition: all var(--transition-fast);
    position: relative;
}

.checkers-piece:active {
    cursor: grabbing;
}

.checkers-piece.red {
    background: radial-gradient(circle at 30% 30%, #ff6b6b, #c92a2a);
}

.checkers-piece.black {
    background: radial-gradient(circle at 30% 30%, #495057, #212529);
}

.checkers-piece.king::after {
    content: '♔';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 200%;
    color: gold;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.checkers-piece.dragging {
    opacity: 0.5;
    transform: scale(1.1);
}

.checkers-side-panel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.checkers-status,
.checkers-captured,
.checkers-actions {
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.checkers-status h4,
.checkers-captured h4 {
    font-size: var(--font-size-lg);
    color: var(--accent-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.status-text {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.6;
}

.captured-pieces {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.captured-red,
.captured-black {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    min-height: 40px;
}

.captured-piece {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid rgba(0, 0, 0, 0.2);
}

.captured-piece.red {
    background: radial-gradient(circle at 30% 30%, #ff6b6b, #c92a2a);
}

.captured-piece.black {
    background: radial-gradient(circle at 30% 30%, #495057, #212529);
}

.checkers-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.btn-danger {
    background: var(--error);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.btn-secondary:hover {
    background: var(--hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

/* Mobile responsive checkers game */
@media (max-width: 1024px) {
    .checkers-game-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
    }

    .checkers-board {
        max-width: 500px;
    }

    .checkers-side-panel {
        max-width: 500px;
        margin: 0 auto;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .checkers-modal-content {
        width: 95%;
        max-height: 95vh;
    }

    .checkers-modal-header {
        padding: var(--spacing-lg);
        flex-wrap: wrap;
    }

    .checkers-modal-header h3 {
        font-size: var(--font-size-xl);
    }

    .checkers-game-info {
        width: 100%;
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
    }

    .checkers-game-container {
        padding: var(--spacing-lg);
        gap: var(--spacing-lg);
    }

    .checkers-board {
        max-width: 400px;
        border-width: 2px;
    }

    .checkers-piece.king::after {
        font-size: 150%;
    }

    .checkers-status h4,
    .checkers-captured h4 {
        font-size: var(--font-size-base);
    }

    .status-text {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .checkers-board {
        max-width: 320px;
        border-width: 2px;
    }

    .checkers-piece {
        border-width: 2px;
    }

    .checkers-piece.king::after {
        font-size: 120%;
    }

    .captured-piece {
        width: 24px;
        height: 24px;
    }
}

/* Portfolio Modal */
.portfolio-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
}

.portfolio-modal[aria-hidden="false"] {
    display: flex;
}

.portfolio-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.portfolio-modal-content {
    position: relative;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
    z-index: 10000;
}

.portfolio-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 10001;
}

.portfolio-close-btn:hover {
    background: var(--accent-primary);
    color: white;
    transform: rotate(90deg);
}

.portfolio-header {
    padding: 32px 24px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    display: flex;
    align-items: center;
    gap: 20px;
}

.portfolio-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 4px solid rgba(255, 255, 255, 0.3);
}

.portfolio-header-info h2 {
    margin: 0 0 8px 0;
    color: white;
    font-size: 24px;
}

.portfolio-status {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.9);
}

.portfolio-body {
    padding: 24px;
}

.portfolio-section {
    margin-bottom: 24px;
}

.portfolio-section h3 {
    margin: 0 0 16px 0;
    color: var(--text-primary);
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.portfolio-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
}

.stat-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
    transition: transform var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: 24px;
    color: var(--accent-primary);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.portfolio-footer {
    padding: 24px;
    background: var(--bg-tertiary);
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.portfolio-btn {
    flex: 1;
    min-width: 150px;
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.portfolio-btn.btn-primary {
    background: var(--accent-primary);
    color: white;
}

.portfolio-btn.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.portfolio-btn.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.portfolio-btn.btn-secondary:hover {
    background: var(--bg-primary);
    border-color: var(--accent-primary);
}

/* Checkers Menu Modal */
.checkers-menu-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9998;
    display: none;
    align-items: center;
    justify-content: center;
}

.checkers-menu-modal[aria-hidden="false"] {
    display: flex;
}

.checkers-menu-modal .checkers-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.checkers-menu-modal .checkers-modal-content {
    position: relative;
    width: 90%;
    max-width: 700px;
    max-height: 80vh;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
    z-index: 9999;
}

.checkers-menu-modal .checkers-modal-header {
    padding: 20px 24px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.checkers-menu-modal .checkers-modal-header h3 {
    margin: 0;
    font-size: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkers-menu-modal .checkers-modal-body {
    padding: 24px;
}

.checkers-section {
    margin-bottom: 24px;
}

.checkers-section h4 {
    margin: 0 0 12px 0;
    color: var(--text-primary);
    font-size: 16px;
}

.checkers-section .empty-state {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
    font-size: 14px;
}

/* Play with AI Button */
.btn-play-ai {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-play-ai:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-play-ai:active {
    transform: translateY(0);
}

.btn-play-ai i {
    font-size: 20px;
}

/* Unread Badge */
.unread-badge {
    display: inline-block;
    min-width: 20px;
    height: 20px;
    padding: 2px 6px;
    background: var(--accent-primary);
    color: white;
    font-size: 11px;
    font-weight: 700;
    border-radius: 10px;
    text-align: center;
    line-height: 16px;
    margin-left: 4px;
}

/* Mobile Overlay Fix */
.mobile-overlay.active {
    display: block;
}

/* Sidebar Active State Fix */
.sidebar.active {
    transform: translateX(0);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}

.toast {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 16px 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 400px;
    display: flex;
    align-items: center;
    gap: 12px;
    pointer-events: all;
    animation: slideInRight 0.3s ease-out;
    border-left: 4px solid var(--accent-primary);
}

.toast i:first-child {
    font-size: 20px;
    flex-shrink: 0;
}

.toast span {
    flex: 1;
    font-size: 14px;
    line-height: 1.4;
    word-wrap: break-word;
}

.toast-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.toast-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.toast-close i {
    font-size: 14px;
}

/* Toast Type Variants */
.toast-success {
    border-left-color: #10b981;
    background: var(--bg-secondary);
}

.toast-success i:first-child {
    color: #10b981;
}

.toast-error {
    border-left-color: #ef4444;
    background: var(--bg-secondary);
}

.toast-error i:first-child {
    color: #ef4444;
}

.toast-warning {
    border-left-color: #f59e0b;
    background: var(--bg-secondary);
}

.toast-warning i:first-child {
    color: #f59e0b;
}

.toast-info {
    border-left-color: var(--accent-primary);
    background: var(--bg-secondary);
}

.toast-info i:first-child {
    color: var(--accent-primary);
}

/* Toast Notification Styles (for chat messages) */
.toast-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: transform 0.2s ease;
}

.toast-avatar:hover {
    transform: scale(1.1);
}

.toast-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.toast-title {
    display: flex;
    align-items: center;
    gap: 6px;
}

.toast-username {
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--text-primary);
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.toast-message i {
    font-size: 14px;
}

.toast-time {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* Toast Animations */
@keyframes slideInRight {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.removing {
    animation: fadeOut 0.3s ease-out forwards;
}

/* Game Invite Toast */
.toast-game-invite {
    border-left-color: #8b5cf6;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(139, 92, 246, 0.05) 100%);
    min-width: 350px;
}

.toast-game-invite .toast-avatar {
    border: 2px solid #8b5cf6;
}

.toast-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.toast-btn {
    flex: 1;
    padding: 8px 12px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.toast-btn-accept {
    background: #10b981;
    color: white;
}

.toast-btn-accept:hover {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.toast-btn-decline {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.toast-btn-decline:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.toast-btn i {
    font-size: 12px;
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100px);
    }
}

/* Mobile Toast Adjustments */
@media (max-width: 768px) {
    .toast-container {
        top: 10px;
        right: 10px;
        left: 10px;
    }
    
    .toast {
        min-width: unset;
        max-width: unset;
    }
    
    @keyframes slideInRight {
        from {
            transform: translateY(-100px);
            opacity: 0;
        }
        to {
            transform: translateY(0);
            opacity: 1;
        }
    }
    
    @keyframes fadeOut {
        from {
            opacity: 1;
            transform: translateY(0);
        }
        to {
            opacity: 0;
            transform: translateY(-50px);
        }
    }
}

/* ===== MENTIONS SYSTEM ===== */

/* Mention badge on header button */
.mention-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--error);
    color: white;
    font-size: 10px;
    font-weight: bold;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* Mention in message text */
.mention {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-primary);
    padding: 2px 4px;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.mention:hover {
    background: rgba(59, 130, 246, 0.3);
    text-decoration: underline;
}

/* Mentions Modal */
.mentions-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mentions-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.mentions-modal-content {
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.mentions-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.mentions-modal-header h2 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.mentions-close-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.mentions-close-btn:hover {
    background: var(--hover);
    color: var(--text-primary);
}

.mentions-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.mention-item {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-left: 3px solid var(--accent-primary);
    cursor: pointer;
    transition: all 0.2s;
}

.mention-item:hover {
    background: var(--hover);
    transform: translateX(4px);
}

.mention-item.unread {
    background: rgba(59, 130, 246, 0.1);
}

.mention-item-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.mention-item-header img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
}

.mention-item-username {
    font-weight: 600;
    color: var(--text-primary);
}

.mention-item-time {
    margin-left: auto;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.mention-item-message {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.5;
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-2xl);
}

@keyframes highlightMention {
    0% { background: rgba(59, 130, 246, 0.3); }
    50% { background: rgba(59, 130, 246, 0.5); }
    100% { background: rgba(59, 130, 246, 0.1); }
}

/* ===== MENTION AUTOCOMPLETE ===== */

.mention-autocomplete-wrapper {
    position: relative;
    flex: 1;
}

.mention-autocomplete {
    position: absolute;
    bottom: 100%;
    left: 0;
    right: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    max-height: 200px;
    overflow-y: auto;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    scrollbar-width: thin;
    scrollbar-color: rgba(148, 163, 253, 0.4) transparent;
}

.mention-autocomplete::-webkit-scrollbar {
    width: 6px;
}

.mention-autocomplete::-webkit-scrollbar-track {
    background: transparent;
}

.mention-autocomplete::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 253, 0.4);
    border-radius: 3px;
}

.mention-autocomplete::-webkit-scrollbar-thumb:hover {
    background: rgba(148, 163, 253, 0.6);
}

.mention-autocomplete-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: background 0.15s;
    border-bottom: 1px solid var(--border);
    position: relative;
}

.mention-autocomplete-item:last-child {
    border-bottom: none;
}

.mention-autocomplete-item:hover,
.mention-autocomplete-item.selected {
    background: var(--hover);
}

.mention-autocomplete-item.selected {
    background: rgba(59, 130, 246, 0.15);
}

.mention-autocomplete-item img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.mention-autocomplete-item .username {
    color: var(--text-primary);
    font-weight: 600;
    font-size: var(--font-size-base);
    flex: 1;
}

.mention-autocomplete-item .status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--online);
    margin-right: var(--spacing-xs);
}

.mention-autocomplete-item .mention-actions {
    display: none;
    gap: var(--spacing-xs);
    margin-left: auto;
}

.mention-autocomplete-item:hover .mention-actions {
    display: flex;
}

.mention-action-btn {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: all 0.15s;
}

.mention-action-btn:hover {
    background: var(--accent-primary);
    color: white;
    transform: scale(1.1);
}

/* ===== COMPREHENSIVE MOBILE UI/UX IMPROVEMENTS ===== */
@media (max-width: 768px) {
    /* ===== GLOBAL MOBILE FIXES ===== */
    html, body {
        /* Keep normal flow - don't lock the viewport to allow OS/keyboard interactions */
        width: 100%;
        height: 100%;
        overflow: auto; /* allow content to scroll when needed */
        overscroll-behavior: contain;
        -webkit-overflow-scrolling: touch;
        -webkit-text-size-adjust: 100%;
    }
    
    body {
        touch-action: pan-y;
        -webkit-text-size-adjust: 100%;
    }
    
    /* Container */
    .container {
        display: flex;
        flex-direction: column;
        height: 100vh;
        height: 100dvh;
        overflow: hidden;
        position: relative;
    }
    
    /* Main Content */
    .main-content {
        flex: 1;
        display: flex;
        flex-direction: column;
        overflow: hidden;
        min-height: 0;
    }
    
    /* ===== HEADER MOBILE ===== */
    .chat-header {
        padding: var(--spacing-sm) var(--spacing-md);
        padding-top: calc(var(--spacing-sm) + env(safe-area-inset-top));
        min-height: 56px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        flex-shrink: 0;
    }
    
    .header-left h3 {
        font-size: var(--font-size-lg);
        margin-bottom: 2px;
    }
    
    .channel-topic {
        font-size: var(--font-size-xs);
    }
    
    .header-btn {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
        font-size: var(--font-size-base);
    }
    
    .mobile-nav-toggle {
        display: flex !important;
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
    }
    
    .back-btn-hidden {
        display: none !important;
    }
    
    /* ===== MESSAGES CONTAINER MOBILE ===== */
    .messages-container {
        flex: 1;
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
        padding: var(--spacing-md);
        /* Ensure messages aren't hidden by the fixed input area or keyboard */
        padding-bottom: calc(100px + env(safe-area-inset-bottom)); /* Space for input */
        min-height: 0;
    }
    
    /* ===== MESSAGE BUBBLES MOBILE ===== */
    .message-wrapper {
        margin-bottom: var(--spacing-md);
        max-width: 85%;
    }
    
    .message-username {
        font-size: var(--font-size-xs);
        margin-bottom: 4px;
    }
    
    .message-avatar {
        width: 32px;
        height: 32px;
        min-width: 32px;
        min-height: 32px;
    }
    
    .message-avatar img {
        width: 32px;
        height: 32px;
    }
    
    .message-bubble {
        font-size: var(--font-size-base);
        padding: var(--spacing-sm) var(--spacing-md);
        max-width: 100%;
        word-break: break-word;
    }
    
    .message-text {
        font-size: var(--font-size-base);
        line-height: 1.5;
    }
    
    .message-time {
        font-size: 10px;
        margin-top: 4px;
    }
    
    /* ===== INPUT AREA MOBILE ===== */
    .input-area {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        padding: var(--spacing-md);
        padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom));
        background: var(--bg-secondary);
        border-top: 1px solid var(--border);
        box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.15);
        z-index: var(--z-sticky);
        display: flex;
        gap: var(--spacing-sm);
        align-items: flex-end;
    }
    .input-area {
        backdrop-filter: blur(6px);
        -webkit-backdrop-filter: blur(6px);
    }
    
    .message-input {
        flex: 1;
        min-height: 44px;
        max-height: 120px;
        padding: 12px var(--spacing-md);
        font-size: 16px !important; /* Prevent iOS zoom */
        border-radius: 22px;
        resize: none;
        line-height: 1.4;
    }
    
    .control-btn,
    .send-btn {
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
        font-size: var(--font-size-lg);
        border-radius: var(--radius-full);
        flex-shrink: 0;
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    
    .send-btn {
        background: var(--accent-primary);
        color: white;
    }
    
    .send-btn:active {
        transform: scale(0.95);
    }
    
    /* ===== MORE PANEL MOBILE ===== */
    .more-panel {
        bottom: calc(100% + var(--spacing-sm));
        left: var(--spacing-md);
        right: auto;
        /* min-width: 200px; */
        max-width: calc(100vw - var(--spacing-xl));
    }
    
    .more-panel .control-btn {
        width: 48px;
        height: 48px;
        min-width: 48px;
        min-height: 48px;
    }
    
    /* ===== MODALS MOBILE ===== */
    .modal,
    .radio-modal {
        width: 95vw;
        max-width: 95vw;
        max-height: 90vh;
        margin: auto;
        border-radius: var(--radius-lg);
    }
    
    .modal-header {
        padding: var(--spacing-md);
        padding-top: calc(var(--spacing-md) + env(safe-area-inset-top));
    }
    
    .modal-body {
        padding: var(--spacing-md);
        max-height: calc(90vh - 120px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .modal-footer {
        padding: var(--spacing-md);
        padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom));
    }
    
    /* ===== GIF MODAL MOBILE ===== */
    #gifModal .modal-body {
        max-height: calc(90vh - 180px);
    }
    
    .gif-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .gif-item {
        height: 140px;
    }
    
    #gifSearchInput {
        font-size: 16px !important; /* Prevent iOS zoom */
        padding: 12px var(--spacing-md);
        min-height: 44px;
    }
    
    /* ===== PORTFOLIO MODAL MOBILE ===== */
    #portfolioModal .modal-body {
        padding: var(--spacing-md);
    }
    
    .portfolio-avatar {
        width: 80px;
        height: 80px;
    }
    
    .portfolio-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .portfolio-actions .btn {
        width: 100%;
        min-height: 48px;
    }
    
    /* ===== MENTIONS MODAL MOBILE ===== */
    .mention-item {
        padding: var(--spacing-md);
    }
    
    .mention-item .avatar {
        width: 36px;
        height: 36px;
    }
    
    /* ===== MENTION AUTOCOMPLETE MOBILE ===== */
    .mention-autocomplete {
        bottom: calc(100% + var(--spacing-sm));
        left: 0;
        right: 0;
        max-height: 240px;
        margin: 0 var(--spacing-md);
    }
    
    .mention-autocomplete-item {
        padding: var(--spacing-md);
        min-height: 52px;
    }
    
    .mention-autocomplete-item img {
        width: 36px;
        height: 36px;
    }
    
    .mention-autocomplete-item .username {
        font-size: var(--font-size-base);
    }
    
    .mention-autocomplete-item .mention-actions {
        display: flex !important; /* Always show on mobile */
    }
    
    .mention-action-btn {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    
    /* ===== SIDEBAR MOBILE (Already defined but enhanced) ===== */
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 300px;
        max-width: 85vw;
        height: 100vh;
        height: 100dvh;
        transform: translateX(-100%);
        z-index: var(--z-modal);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    /* ===== CONVERSATION ITEMS MOBILE ===== */
    .conversation-item {
        padding: var(--spacing-md);
        min-height: 60px;
        margin: 4px var(--spacing-sm);
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }
    
    .conversation-item .avatar {
        width: 44px;
        height: 44px;
    }
    
    .conversation-name {
        font-size: var(--font-size-base);
    }
    
    .conversation-preview {
        font-size: var(--font-size-sm);
    }
    
    .unread-badge {
        font-size: var(--font-size-xs);
        min-width: 20px;
        height: 20px;
        padding: 0 6px;
    }
    
    /* ===== CHANNEL ITEMS MOBILE ===== */
    .channel-item {
        padding: var(--spacing-md);
        min-height: 52px;
        margin: 4px var(--spacing-sm);
        font-size: var(--font-size-base);
    }
    
    /* ===== SEARCH INPUT MOBILE ===== */
    .search-input {
        font-size: 16px !important; /* Prevent iOS zoom */
        padding: 12px var(--spacing-md);
        min-height: 44px;
    }
    
    /* ===== BUTTONS MOBILE ===== */
    .btn-primary,
    .btn-action {
        min-height: 48px;
        font-size: var(--font-size-base);
        padding: var(--spacing-md) var(--spacing-lg);
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }
    
    /* ===== TOAST NOTIFICATIONS MOBILE ===== */
    .toast {
        bottom: calc(80px + env(safe-area-inset-bottom));
        left: var(--spacing-md);
        right: var(--spacing-md);
        max-width: none;
        margin: 0;
    }
    
    /* ===== EMPTY STATES MOBILE ===== */
    .empty-state {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .empty-state-icon {
        font-size: 48px;
    }
    
    .empty-state p {
        font-size: var(--font-size-base);
    }
    
    /* ===== HIDE RIGHT SIDEBAR ON MOBILE ===== */
    .right-sidebar {
        display: none !important;
    }
    
    /* ===== SECTION HEADERS MOBILE ===== */
    .section-header {
        padding: var(--spacing-md);
        font-size: var(--font-size-sm);
        min-height: 44px;
    }
    
    /* ===== USER INFO SECTION MOBILE ===== */
    .user-info-section {
        padding: var(--spacing-md);
    }
    
    .user-info-section .avatar {
        width: 48px;
        height: 48px;
    }
    
    /* ===== SAFE AREA INSETS ===== */
    @supports (padding: max(0px)) {
        .chat-header {
            padding-top: max(var(--spacing-sm), env(safe-area-inset-top));
        }
        
        .sidebar-header {
            padding-top: max(var(--spacing-lg), env(safe-area-inset-top));
        }
        
        .input-area {
            padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom));
        }
        
        .modal-header {
            padding-top: max(var(--spacing-md), env(safe-area-inset-top));
        }
        
        .modal-footer {
            padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom));
        }
    }
}

/* ===== AUTHENTICATION STYLES ===== */

/* Password input container */
.password-input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-container .form-control {
    padding-right: 48px;
}

.password-toggle {
    position: absolute;
    right: 12px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    width: 32px;
    height: 32px;
}

.password-toggle:hover {
    color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.1);
    transform: scale(1.1);
}

.password-toggle:active {
    transform: scale(0.95);
}

.password-toggle i {
    font-size: 16px;
}

/* Auth tabs */
.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    margin: 0 var(--spacing-2xl);
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    padding: var(--spacing-xs);
    gap: var(--spacing-xs);
}

.auth-tab {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    border-radius: var(--radius-md);
    position: relative;
    z-index: 1;
}

.auth-tab:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.auth-tab.active {
    color: var(--text-primary);
    background: var(--bg-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.auth-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.auth-tab i {
    font-size: 16px;
    transition: transform var(--transition-normal);
}

.auth-tab.active i {
    transform: scale(1.1);
}

/* Success message */
.success-message {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15) 0%, rgba(34, 197, 94, 0.1) 100%);
    color: var(--success);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin: 0 var(--spacing-2xl) var(--spacing-lg);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border: 1px solid rgba(34, 197, 94, 0.3);
    box-shadow: 0 2px 8px rgba(34, 197, 94, 0.1);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.success-message i {
    font-size: 18px;
    animation: pulse 2s ease infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Error message */
.error-message {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(239, 68, 68, 0.1) 100%);
    color: var(--error);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin: 0 var(--spacing-2xl) var(--spacing-lg);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border: 1px solid rgba(239, 68, 68, 0.3);
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.1);
    animation: slideDown 0.3s ease, shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.error-message i {
    font-size: 18px;
}

/* Form validation */
.form-control:invalid {
    border-color: var(--error);
}

.form-control:focus:invalid {
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
}

/* Loading state for buttons */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.btn-auth.loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-left: 8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    position: relative;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.auth-box {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 
                0 0 0 1px rgba(255, 255, 255, 0.05);
    width: 100%;
    max-width: 420px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-header {
    padding: var(--spacing-3xl) var(--spacing-2xl) var(--spacing-2xl);
    text-align: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.auth-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.auth-header h1 {
    color: var(--text-primary);
    font-size: 32px;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.auth-header h1 i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 36px;
}

.auth-header p {
    color: var(--text-muted);
    font-size: var(--font-size-base);
    margin-top: var(--spacing-sm);
}

.auth-form {
    padding: var(--spacing-2xl);
    animation: fadeIn 0.4s ease 0.1s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.form-group {
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.form-group:last-of-type {
    margin-bottom: var(--spacing-2xl);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.3px;
}

.form-control {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-md) 44px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
    position: relative;
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15),
                0 4px 12px rgba(59, 130, 246, 0.1);
    background: var(--bg-primary);
    transform: translateY(-1px);
}

.form-group::before {
    content: '';
    position: absolute;
    left: 14px;
    top: 38px;
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    pointer-events: none;
    z-index: 1;
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 14px;
    line-height: 1;
    display: block;
}

.form-group:has([name="username"])::before {
    content: '\f007';
}

.form-group:has([name="email"])::before {
    content: '\f0e0';
}

.form-group:has([name="password"])::before,
.form-group:has([name="confirm_password"])::before {
    content: '\f023';
}

.btn-auth {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.3px;
}

.btn-auth::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-auth:hover::before {
    left: 100%;
}

.btn-auth:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.btn-auth:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.btn-auth i {
    margin-right: var(--spacing-sm);
}

.auth-footer {
    text-align: center;
    padding: 0 var(--spacing-2xl) var(--spacing-2xl);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.auth-footer a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    margin-left: var(--spacing-xs);
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Loading state */
.btn-auth.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.8;
}

.btn-auth.loading:after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin: -8px 0 0 -8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .auth-container {
        padding: var(--spacing-md);
    }
    
    .auth-box {
        border-radius: var(--radius-lg);
        max-width: 100%;
    }
    
    .auth-header {
        padding: var(--spacing-2xl) var(--spacing-xl) var(--spacing-xl);
    }
    
    .auth-header h1 {
        font-size: 28px;
    }
    
    .auth-header h1 i {
        font-size: 32px;
    }
    
    .auth-form {
        padding: var(--spacing-xl);
    }
    
    .form-group {
        margin-bottom: var(--spacing-lg);
    }
    
    .auth-tabs {
        margin: 0 var(--spacing-xl);
        padding: var(--spacing-xs);
    }
    
    .auth-tab {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .success-message,
    .error-message {
        margin: 0 var(--spacing-xl) var(--spacing-md);
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* ===== TABLET OPTIMIZATIONS (769px - 1024px) ===== */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        grid-template-columns: 280px minmax(0, 1fr);
    }
    
    .right-sidebar {
        display: none;
    }
    
    .sidebar {
        width: 280px;
    }
    
    .chat-header {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .input-area {
        padding: var(--spacing-md) var(--spacing-lg);
    }
}