/* Teamster Event Operations Styling - Vanilla CSS (Modern, Fresh, and Funky Dark Aesthetic) */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&family=Inter:wght@300;400;500;700&display=swap');

:root {
    /* Color Palette */
    --bg-primary: hsl(230, 25%, 8%);
    --bg-secondary: hsl(230, 20%, 12%);
    --bg-tertiary: hsl(230, 18%, 16%);
    
    --accent-purple: hsl(265, 85%, 62%);
    --accent-purple-glow: hsla(265, 85%, 62%, 0.35);
    
    --accent-teal: hsl(172, 80%, 45%);
    --accent-teal-glow: hsla(172, 80%, 45%, 0.35);
    
    --accent-pink: hsl(332, 85%, 58%);
    --accent-pink-glow: hsla(332, 85%, 58%, 0.35);
    
    --accent-amber: hsl(38, 95%, 55%);
    --accent-amber-glow: hsla(38, 95%, 55%, 0.35);
    
    --accent-red: hsl(356, 85%, 55%);
    --accent-red-glow: hsla(356, 85%, 55%, 0.35);
    
    /* Text Colors */
    --text-primary: hsl(220, 30%, 96%);
    --text-secondary: hsl(220, 15%, 70%);
    --text-muted: hsl(220, 10%, 48%);
    
    /* Glassmorphism & UI Tokens */
    --border-glow: hsla(0, 0%, 100%, 0.08);
    --border-glow-active: hsla(265, 85%, 62%, 0.3);
    --shadow-main: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    /* Fonts */
    --font-heading: 'Outfit', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
}



/* Reset & Core Setup */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-purple);
}

/* Global Grid Layouts */
.layout-wrapper {
    display: flex;
    min-height: 100vh;
    position: relative;
}

/* Sidebar Styling (Desktop/Tablet) */
.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-glow);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 100;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #white;
    box-shadow: 0 0 15px var(--accent-purple-glow);
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.6rem;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-grow: 1;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.25s ease;
    border: 1px solid transparent;
}

.nav-link:hover, .nav-link.active {
    background: hsla(265, 85%, 62%, 0.08);
    color: var(--text-primary);
    border-color: var(--border-glow-active);
    transform: translateX(4px);
}

.nav-link.active .nav-icon {
    color: var(--accent-purple);
}

.nav-icon {
    font-size: 1.25rem;
    transition: color 0.25s ease;
}

/* User Profile Widget in Sidebar */
.user-profile-widget {
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-glow);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-teal), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--bg-primary);
    border: 2px solid var(--border-glow);
}

.user-details {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.user-name {
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.user-role {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: capitalize;
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    margin-left: 280px;
    padding: 2rem;
    min-height: 100vh;
}

/* Top Role Switcher / Demo Controls */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    gap: 1.5rem;
}

.role-switcher-container {
    background: var(--bg-secondary);
    padding: 0.4rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-glow);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.switcher-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0 0.75rem;
}

.role-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.role-btn.active {
    background: var(--accent-purple);
    color: #white;
    box-shadow: 0 4px 15px var(--accent-purple-glow);
}

/* Dashboard Cards & Layout Grids */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-main);
    transition: transform 0.25s ease, border-color 0.25s ease;
    overflow: hidden;
    position: relative;
}

.card:hover {
    border-color: var(--border-glow-active);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Stats / Status Meters */
.status-pill {
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.status-pill.good {
    background: hsla(172, 80%, 45%, 0.15);
    color: var(--accent-teal);
    border: 1px solid hsla(172, 80%, 45%, 0.3);
}

.status-pill.warning {
    background: hsla(38, 95%, 55%, 0.15);
    color: var(--accent-amber);
    border: 1px solid hsla(38, 95%, 55%, 0.3);
}

.status-pill.critical {
    background: hsla(356, 85%, 55%, 0.15);
    color: var(--accent-red);
    border: 1px solid hsla(356, 85%, 55%, 0.3);
}

/* Attendance Level Gauges */
.attendance-gauge {
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.attendance-gauge-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.4s ease;
}

.attendance-gauge-fill.empty {
    width: 5%;
    background: var(--text-muted);
}
.attendance-gauge-fill.sparse {
    width: 40%;
    background: var(--accent-amber);
}
.attendance-gauge-fill.crowded {
    width: 95%;
    background: var(--accent-teal);
}

/* Zone status card item */
.zone-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.zone-item {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1rem;
    border-left: 4px solid var(--text-muted);
    transition: transform 0.2s ease;
}

.zone-item:hover {
    transform: translateX(4px);
}

.zone-item.status-good {
    border-left-color: var(--accent-teal);
}
.zone-item.status-warning {
    border-left-color: var(--accent-amber);
}
.zone-item.status-critical {
    border-left-color: var(--accent-red);
}

.zone-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Task Board Styles */
.task-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 480px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

.task-item {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1rem;
    border: 1px solid var(--border-glow);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    transition: all 0.2s ease;
}

.task-item:hover {
    border-color: var(--border-glow-active);
}

.task-item.completed {
    opacity: 0.65;
}

.task-item.completed .task-title {
    text-decoration: line-through;
    color: var(--text-muted);
}

.task-checkbox {
    width: 20px;
    height: 20px;
    border-radius: 6px;
    border: 2px solid var(--accent-purple);
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 0.15rem;
    transition: all 0.2s ease;
}

.task-checkbox.checked {
    background: var(--accent-purple);
    border-color: var(--accent-purple);
}

.task-checkbox.checked::after {
    content: "✓";
    color: #white;
    font-size: 0.8rem;
    font-weight: 700;
}

.task-content {
    flex-grow: 1;
}

.task-title {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.task-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.task-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.task-tag {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
}

.task-tag.priority-high {
    background: hsla(356, 85%, 55%, 0.1);
    color: var(--accent-red);
}
.task-tag.priority-medium {
    background: hsla(38, 95%, 55%, 0.1);
    color: var(--accent-amber);
}
.task-tag.priority-low {
    background: hsla(172, 80%, 45%, 0.1);
    color: var(--accent-teal);
}

.task-tag.assignee {
    background: hsla(265, 85%, 62%, 0.1);
    color: var(--accent-purple);
}

/* Chat & Messages Interface */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 480px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-glow);
}

.chat-messages {
    flex-grow: 1;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chat-bubble {
    display: flex;
    flex-direction: column;
    max-width: 80%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    position: relative;
    animation: fadeIn 0.25s ease-out;
}

.chat-bubble.sent {
    align-self: flex-end;
    background: var(--accent-purple);
    border-bottom-right-radius: 2px;
    box-shadow: 0 4px 15px var(--accent-purple-glow);
}

.chat-bubble.received {
    align-self: flex-start;
    background: var(--bg-secondary);
    border-bottom-left-radius: 2px;
    border: 1px solid var(--border-glow);
}

.chat-bubble.mention {
    border: 1px solid var(--accent-pink) !important;
    background: rgba(236, 72, 153, 0.08) !important;
    box-shadow: 0 0 15px rgba(236, 72, 153, 0.15) !important;
}

.chat-sender {
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.chat-bubble.sent .chat-sender {
    color: hsl(172, 80%, 85%);
}

.chat-bubble.received .chat-sender {
    color: var(--accent-teal);
}

.chat-text {
    font-size: 0.9rem;
    word-break: break-word;
}

.chat-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    align-self: flex-end;
    margin-top: 0.25rem;
}

.chat-bubble.sent .chat-time {
    color: hsla(0, 0%, 100%, 0.6);
}

.chat-input-area {
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-glow);
    display: flex;
    gap: 0.5rem;
}

.chat-input {
    flex-grow: 1;
    background: var(--bg-primary);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.6rem 0.85rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.chat-input:focus {
    border-color: var(--accent-purple);
}

.chat-send-btn {
    background: var(--accent-purple);
    border: none;
    border-radius: var(--radius-sm);
    color: #white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.1rem;
    box-shadow: 0 4px 10px var(--accent-purple-glow);
    transition: background 0.2s ease;
}

.chat-send-btn:hover {
    background: hsl(265, 85%, 55%);
}

/* Rota Grids & Timelines */
.rota-table-container {
    overflow-x: auto;
}

.rota-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.rota-table th {
    background: var(--bg-primary);
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    font-weight: 600;
    border-bottom: 2px solid var(--border-glow);
}

.rota-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-glow);
}

.rota-table tr:hover {
    background: hsla(0, 0%, 100%, 0.02);
}

.badge-wrapper {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Lanyard Reference Card */
.lanyard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.lanyard-item {
    border-radius: var(--radius-md);
    padding: 0.85rem;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 700;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    border: 1px solid var(--border-glow);
}

.lanyard-item.purple {
    background: hsla(265, 85%, 62%, 0.12);
    color: hsl(265, 90%, 75%);
    border-color: hsla(265, 85%, 62%, 0.25);
}
.lanyard-item.red {
    background: hsla(356, 85%, 55%, 0.12);
    color: hsl(356, 90%, 75%);
    border-color: hsla(356, 85%, 55%, 0.25);
}
.lanyard-item.white {
    background: hsla(0, 0%, 100%, 0.08);
    color: hsl(0, 0%, 95%);
    border-color: hsla(0, 0%, 100%, 0.2);
}
.lanyard-item.orange {
    background: hsla(38, 95%, 55%, 0.12);
    color: hsl(38, 95%, 75%);
    border-color: hsla(38, 95%, 55%, 0.25);
}

.lanyard-color-block {
    width: 24px;
    height: 8px;
    border-radius: 4px;
}
.lanyard-item.purple .lanyard-color-block { background: var(--accent-purple); }
.lanyard-item.red .lanyard-color-block { background: var(--accent-red); }
.lanyard-item.white .lanyard-color-block { background: #white; }
.lanyard-item.orange .lanyard-color-block { background: var(--accent-amber); }

/* Quick Task Form */
.quick-task-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-control {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.55rem 0.75rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    outline: none;
}

.form-control:focus {
    border-color: var(--accent-purple);
}

.btn {
    background: var(--accent-purple);
    color: #white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.65rem 1rem;
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    box-shadow: 0 4px 10px var(--accent-purple-glow);
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.btn:hover {
    background: hsl(265, 85%, 55%);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-glow);
    color: var(--text-primary);
    box-shadow: none;
}

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

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* responsive media queries */

/* Smartphone Mode (up to 768px) */
@media (max-width: 768px) {
    .sidebar {
        display: none; /* Hide desktop sidebar */
    }
    
    /* Ensure HTML/Body and wrapper elements do not stretch horizontally */
    html, body, .layout-wrapper {
        max-width: 100% !important;
        overflow-x: hidden !important;
        width: 100% !important;
    }

    .main-content {
        margin-left: 0;
        max-width: 100% !important;
        width: 100% !important;
        overflow-x: hidden !important;
        box-sizing: border-box !important;
        padding: calc(2.75rem + env(safe-area-inset-top, 0px)) 1rem calc(5.5rem + env(safe-area-inset-bottom, 0px)) 1rem; /* Pad top/bottom for mobile status/software bars */
    }
    
    .top-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .role-switcher-container {
        width: 100%;
        justify-content: space-between;
    }

    /* Mobile Chat Channels Layout Adjustments */
    .chat-layout {
        flex-direction: column !important;
        height: 520px !important;
    }
    .chat-sidebar {
        width: 100% !important;
        height: 60px !important;
        border-right: none !important;
        border-bottom: 1px solid var(--border-glow) !important;
        flex-direction: row !important;
        align-items: center !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        flex-wrap: nowrap !important;
    }
    .chat-sidebar-header {
        display: none !important;
    }
    .chat-channel-item {
        border-bottom: none !important;
        border-right: 1px solid rgba(255, 255, 255, 0.05) !important;
        padding: 0.5rem 1rem !important;
        white-space: nowrap !important;
        height: 100% !important;
        display: flex !important;
        align-items: center !important;
    }
    .chat-main {
        flex-grow: 1 !important;
        height: calc(100% - 60px) !important;
    }
    
    .dashboard-grid {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }
    
    .card {
        padding: 1.15rem;
    }
    
    /* Bottom Navigation Bar for Mobile */
    .mobile-navbar {
        display: flex !important;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: calc(60px + env(safe-area-inset-bottom, 0px));
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-glow);
        z-index: 999;
        justify-content: space-around;
        align-items: center;
        padding: 0.25rem 0 calc(0.25rem + env(safe-area-inset-bottom, 0px)) 0;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
    }
    
    .mobile-nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.25rem;
        color: var(--text-secondary);
        font-size: 10px;
        font-weight: 500;
        flex-grow: 1;
        max-width: 20%;
        text-align: center;
        cursor: pointer;
        transition: color 0.2s ease;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .mobile-nav-item.active {
        color: var(--accent-purple);
    }
    
    .mobile-nav-item .mobile-icon {
        font-size: 1.15rem;
    }
    
    /* Responsive columns */
    .col-1, .col-2, .col-3, .col-4, .col-5, .col-6, .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
        grid-column: span 12 !important;
    }

    /* Fluid button & layout scaling on small devices */
    .btn {
        padding: 0.5rem 0.85rem !important;
        font-size: 0.8rem !important;
        gap: 0.35rem !important;
    }

    /* Force full-width block buttons in forms for thumb accessibility */
    .quick-task-form button[type="submit"],
    .form-group + button {
        width: 100% !important;
        display: inline-flex !important;
        justify-content: center !important;
    }

    /* Ensure settings flex rows stack nicely on small screens */
    .sub-tab-section .flex-row-between {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.75rem !important;
    }

    /* Prevent grid column widths from causing overflows on narrow viewports */
    .sub-tab-section div[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }
}

/* Tablet Mode (768px to 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .sidebar {
        width: 80px; /* Mini sidebar */
        padding: 1.5rem 0.5rem;
        align-items: center;
    }
    .logo-text, .user-details, .sidebar .nav-link span {
        display: none; /* Hide labels */
    }
    .sidebar .logo-container {
        justify-content: center;
        margin-bottom: 2rem;
    }
    .sidebar .nav-link {
        justify-content: center;
        padding: 0.85rem;
    }
    .main-content {
        margin-left: 80px;
        padding: 1.5rem;
    }
    
    /* Column adaptations */
    .col-4 {
        grid-column: span 6 !important;
    }
    .col-8, .col-7, .col-6, .col-5 {
        grid-column: span 12 !important;
    }
}

/* Desktop Grid helpers */
.col-12 { grid-column: span 12; }
.col-11 { grid-column: span 11; }
.col-10 { grid-column: span 10; }
.col-9 { grid-column: span 9; }
.col-8 { grid-column: span 8; }
.col-7 { grid-column: span 7; }
.col-6 { grid-column: span 6; }
.col-5 { grid-column: span 5; }
.col-4 { grid-column: span 4; }
.col-3 { grid-column: span 3; }
.col-2 { grid-column: span 2; }
.col-1 { grid-column: span 1; }

/* Utility classes */
.flex-row-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.margin-top-md {
    margin-top: 1rem;
}

.d-none {
    display: none !important;
}

.mobile-navbar {
    display: none;
}

/* Chat Layout Channels Split */
.chat-layout {
    display: flex;
    flex-direction: row;
    height: 480px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-glow);
}

.chat-sidebar {
    width: 220px;
    border-right: 1px solid var(--border-glow);
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    flex-shrink: 0;
}

.chat-sidebar-header {
    padding: 0.75rem 1rem;
    font-weight: 800;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-glow);
    letter-spacing: 0.05em;
}

.chat-channel-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-channel-item:hover, .chat-channel-item.active {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-purple);
}

.chat-main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-tertiary);
}