/**
 * RVGL Coordinator - Main Stylesheet
 * Dark gaming theme with neon accents
 */

/* ── Reset & Base ──────────────────────────────────────────────────── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a2236;
    --bg-card-hover: #232d44;
    --bg-input: #0d1321;
    --border-color: #2a3655;
    --border-hover: #3b4d7a;

    /* Neon accents */
    --accent-primary: #00d4ff;
    --accent-secondary: #7c3aed;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    --accent-info: #3b82f6;

    /* Text */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-dark: #0f172a;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
    --gradient-glow: linear-gradient(135deg, rgba(0,212,255,0.15) 0%, rgba(124,58,237,0.15) 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 20px rgba(0,212,255,0.2);
    --shadow-glow-purple: 0 0 20px rgba(124,58,237,0.2);

    /* Layout */
    --sidebar-width: 260px;
    --header-height: 64px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s ease;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Rajdhani', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    letter-spacing: 0.02em;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: #4ee8ff;
}

/* ── Scrollbar ────────────────────────────────────────────────────── */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

/* ── Auth Pages ───────────────────────────────────────────────────── */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent-primary);
    border-radius: 50%;
    opacity: 0.5;
    animation: float linear infinite;
}

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% {
        transform: translateY(-10vh) rotate(720deg);
        opacity: 0;
    }
}

.auth-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
    padding: 2rem;
}

.logo-section {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    color: var(--accent-primary);
    filter: drop-shadow(0 0 15px rgba(0,212,255,0.4));
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { filter: drop-shadow(0 0 15px rgba(0,212,255,0.4)); }
    50% { filter: drop-shadow(0 0 25px rgba(0,212,255,0.7)); }
}

.rvgl-logo {
    width: 100%;
    height: 100%;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
}

.logo-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    font-family: 'Rajdhani', sans-serif;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.auth-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.auth-form h2 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ── Buttons ──────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(0,212,255,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0,212,255,0.5);
}

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

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

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

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

.btn-success:hover {
    background: #34d399;
    box-shadow: 0 4px 15px rgba(16,185,129,0.3);
}

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

.btn-danger:hover {
    background: #f87171;
    box-shadow: 0 4px 15px rgba(239,68,68,0.3);
}

.btn-warning {
    background: var(--accent-warning);
    color: var(--text-dark);
}

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

.btn-full {
    width: 100%;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn .btn-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.btn:hover .btn-glow {
    transform: translateX(100%);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-sm);
}

.btn-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ── Alerts ───────────────────────────────────────────────────────── */
.alert {
    padding: 0.875rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
    border: 1px solid transparent;
}

.alert-error {
    background: rgba(239,68,68,0.1);
    border-color: rgba(239,68,68,0.3);
    color: #f87171;
}

.alert-success {
    background: rgba(16,185,129,0.1);
    border-color: rgba(16,185,129,0.3);
    color: #34d399;
}

.alert-warning {
    background: rgba(245,158,11,0.1);
    border-color: rgba(245,158,11,0.3);
    color: #fbbf24;
}

.alert-info {
    background: rgba(59,130,246,0.1);
    border-color: rgba(59,130,246,0.3);
    color: #60a5fa;
}

/* ── Auth Link ────────────────────────────────────────────────────── */
.auth-link {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.auth-link a {
    font-weight: 600;
}

/* ── Dashboard Layout ─────────────────────────────────────────────── */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
}

/* ── Sidebar ──────────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform var(--transition-base);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-header .logo-icon {
    width: 40px;
    height: 40px;
    margin: 0;
    animation: none;
    filter: drop-shadow(0 0 8px rgba(0,212,255,0.3));
}

.sidebar-header .logo-text {
    font-size: 1rem;
    letter-spacing: 0.05em;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section-title {
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    padding: 0 0.75rem;
    margin-bottom: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    margin-bottom: 0.25rem;
}

.nav-link:hover,
.nav-link.active {
    background: var(--bg-card);
    color: var(--text-primary);
}

.nav-link.active {
    background: var(--gradient-glow);
    border: 1px solid rgba(0,212,255,0.2);
}

.nav-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
}

.user-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.875rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

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

.user-name {
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* ── Main Content ─────────────────────────────────────────────────── */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.topbar {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-title {
    font-size: 1.25rem;
    font-weight: 700;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.page-content {
    flex: 1;
    padding: 2rem;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

/* ── Cards ────────────────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: all var(--transition-base);
}

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

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

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-title svg {
    width: 20px;
    height: 20px;
    color: var(--accent-primary);
}

/* ── Stats Grid ───────────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-card.online::before { background: var(--accent-success); }
.stat-card.racing::before { background: var(--accent-warning); }
.stat-card.players::before { background: var(--accent-info); }
.stat-card.messages::before { background: var(--accent-secondary); }

/* ── Lobby Grid ───────────────────────────────────────────────────── */
.lobby-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
}

.lobby-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.lobby-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.lobby-card.status-racing {
    border-left: 4px solid var(--accent-warning);
}

.lobby-card.status-waiting {
    border-left: 4px solid var(--accent-success);
}

.lobby-header {
    display: flex;
    align-items: start;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.lobby-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    word-break: break-word;
}

.lobby-host {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.lobby-badges {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-success {
    background: rgba(16,185,129,0.15);
    color: #34d399;
}

.badge-warning {
    background: rgba(245,158,11,0.15);
    color: #fbbf24;
}

.badge-info {
    background: rgba(59,130,246,0.15);
    color: #60a5fa;
}

.badge-danger {
    background: rgba(239,68,68,0.15);
    color: #f87171;
}

.badge-muted {
    background: rgba(100,116,139,0.15);
    color: #94a3b8;
}

.lobby-meta {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.lobby-meta-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.lobby-meta svg {
    width: 16px;
    height: 16px;
}

.lobby-actions {
    display: flex;
    gap: 0.5rem;
}

.lobby-actions .btn {
    flex: 1;
}

/* ── Modal ────────────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 1.1rem;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--accent-danger);
    color: white;
    border-color: var(--accent-danger);
}

.modal-body {
    padding: 1.25rem;
}

.modal-footer {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
}

/* ── Table ────────────────────────────────────────────────────────── */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    background: var(--bg-secondary);
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--bg-card-hover);
}

.data-table td {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ── Search Bar ───────────────────────────────────────────────────── */
.search-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0 1rem;
    transition: all var(--transition-fast);
}

.search-bar:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}

.search-bar input {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.875rem;
    padding: 0.75rem 0;
    outline: none;
}

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

.search-bar svg {
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    flex-shrink: 0;
}

/* ── Toggle Switch ────────────────────────────────────────────────── */
.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--border-color);
    border-radius: 24px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.toggle-slider::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition-fast);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--accent-primary);
}

.toggle-switch input:checked + .toggle-slider::after {
    transform: translateX(20px);
}

/* ── Empty State ──────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* ── Chat ─────────────────────────────────────────────────────────── */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 400px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.chat-message {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    max-width: 85%;
}

.chat-message.own {
    align-self: flex-end;
    background: rgba(0,212,255,0.1);
    border: 1px solid rgba(0,212,255,0.2);
}

.chat-message.other {
    align-self: flex-start;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

.chat-message.system {
    align-self: center;
    background: rgba(124,58,237,0.1);
    border: 1px solid rgba(124,58,237,0.2);
    font-size: 0.8rem;
    font-style: italic;
}

.chat-message-author {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.chat-message-text {
    font-size: 0.875rem;
    color: var(--text-primary);
    word-break: break-word;
}

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

.chat-input-area input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.875rem;
    outline: none;
}

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

/* ── Mobile Toggle ────────────────────────────────────────────────── */
.mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
}

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

    .main-content {
        margin-left: 0;
    }

    .mobile-toggle {
        display: flex;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .lobby-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .page-content {
        padding: 1rem;
    }

    .topbar {
        padding: 0 1rem;
    }
}

/* ── Animations ───────────────────────────────────────────────────── */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease forwards;
}

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

.slide-in {
    animation: slideIn 0.3s ease forwards;
}

/* ── Section Header ───────────────────────────────────────────────── */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.section-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

/* ── Status Indicator ─────────────────────────────────────────────── */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-online { background: var(--accent-success); box-shadow: 0 0 6px rgba(16,185,129,0.5); }
.status-racing { background: var(--accent-warning); box-shadow: 0 0 6px rgba(245,158,11,0.5); }
.status-offline { background: var(--text-muted); }

/* ── Divider ──────────────────────────────────────────────────────── */
.divider {
    height: 1px;
    background: var(--border-color);
    margin: 1.5rem 0;
}

/* ── Password Input with Toggle ───────────────────────────────────── */
.password-field {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
}

.password-toggle:hover {
    color: var(--text-primary);
}

/* ── Port Display ─────────────────────────────────────────────────── */
.port-display {
    font-family: 'Orbitron', monospace;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-primary);
    letter-spacing: 0.1em;
}

/* ── Checkbox Group ───────────────────────────────────────────────── */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
}

.checkbox-group label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
}

/* ── Player List in Lobby ─────────────────────────────────────────── */
.player-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.player-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.player-item.host {
    border-color: rgba(0,212,255,0.3);
    background: rgba(0,212,255,0.05);
}

.player-item.ready .player-status {
    color: var(--accent-success);
}

.player-status {
    margin-left: auto;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.player-status.not-ready {
    color: var(--text-muted);
}

/* ── Toast Notifications ──────────────────────────────────────────── */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    padding: 0.875rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    animation: slideInRight 0.3s ease forwards;
    max-width: 360px;
    word-break: break-word;
}

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

.toast-success {
    background: var(--accent-success);
    color: white;
}

.toast-error {
    background: var(--accent-danger);
    color: white;
}

.toast-warning {
    background: var(--accent-warning);
    color: var(--text-dark);
}

.toast-info {
    background: var(--accent-info);
    color: white;
}

/* ── Loading Spinner ──────────────────────────────────────────────── */
.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ── Tooltip ──────────────────────────────────────────────────────── */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    padding: 0.375rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 100;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}