/**
 * Paddle Tournament - Main Stylesheet
 * Design moderne et professionnel
 */

/* ========================================
   CSS Variables & Root
======================================== */
:root {
    /* Primary Colors - Emerald Green */
    --primary: #059669;
    --primary-dark: #047857;
    --primary-light: #34d399;

    /* Secondary Colors - Gold */
    --secondary: #eab308;
    --secondary-dark: #ca8a04;
    --secondary-light: #fde047;

    /* Accent Colors - Warm Orange */
    --accent: #f97316;
    --accent-dark: #ea580c;
    --accent-light: #fdba74;

    /* Danger/Error */
    --danger: #ef4444;
    --danger-dark: #dc2626;
    --danger-light: #fca5a5;

    /* Neutrals - Deep Green Dark */
    --dark: #064e3b;
    --dark-light: #065f46;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #059669 0%, #10b981 50%, #34d399 100%);
    --gradient-secondary: linear-gradient(135deg, #eab308 0%, #fbbf24 100%);
    --gradient-accent: linear-gradient(135deg, #f97316 0%, #fb923c 100%);
    --gradient-dark: linear-gradient(135deg, #064e3b 0%, #065f46 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-primary: 0 10px 40px -10px rgba(5, 150, 105, 0.4);
    --shadow-success: 0 10px 40px -10px rgba(234, 179, 8, 0.4);

    /* Border Radius */
    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;

    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;
}

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

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

body {
    font-family: var(--font-sans);
    background: var(--gray-100);
    color: var(--gray-900);
    line-height: 1.6;
    min-height: 100vh;
}

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

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

/* ========================================
   Layout
======================================== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding: var(--space-6);
    padding-bottom: calc(var(--space-16) + 20px);
}

@media (min-width: 768px) {
    .main-content {
        padding: var(--space-8);
        padding-bottom: var(--space-8);
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* ========================================
   Header / Navigation
======================================== */
.app-header {
    background: var(--gradient-dark);
    color: var(--white);
    padding: var(--space-4) var(--space-6);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--white);
}

.logo-icon {
    font-size: 1.75rem;
}

.header-nav {
    display: flex;
    gap: var(--space-2);
}

.header-nav a {
    color: var(--white);
    opacity: 0.8;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius);
    transition: all var(--transition);
    font-weight: 500;
    font-size: 0.9rem;
}

.header-nav a:hover,
.header-nav a.active {
    opacity: 1;
    background: rgba(255, 255, 255, 0.1);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.notification-btn {
    position: relative;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition);
}

.notification-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.notification-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    background: var(--danger);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

/* ========================================
   Avatar
======================================== */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--white);
    text-transform: uppercase;
    flex-shrink: 0;
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 0.75rem;
}

.avatar-lg {
    width: 64px;
    height: 64px;
    font-size: 1.5rem;
}

.avatar-xl {
    width: 96px;
    height: 96px;
    font-size: 2rem;
}

/* ========================================
   Cards
======================================== */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
}

.card-body {
    padding: var(--space-6);
}

.card-footer {
    padding: var(--space-4) var(--space-6);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

/* Stat Card */
.stat-card {
    padding: var(--space-6);
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-icon.primary {
    background: linear-gradient(135deg, rgba(5, 150, 105, 0.1), rgba(16, 185, 129, 0.1));
    color: var(--primary);
}

.stat-icon.success {
    background: linear-gradient(135deg, rgba(234, 179, 8, 0.1), rgba(251, 191, 36, 0.1));
    color: var(--secondary);
}

.stat-icon.warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(249, 115, 22, 0.1));
    color: var(--accent);
}

.stat-icon.danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(220, 38, 38, 0.1));
    color: var(--danger);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: var(--space-1);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.2;
}

.stat-change {
    font-size: 0.8rem;
    margin-top: var(--space-1);
}

.stat-change.positive {
    color: var(--secondary);
}

.stat-change.negative {
    color: var(--danger);
}

/* ========================================
   Buttons
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    border: none;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-300);
}

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

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-success);
}

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

.btn-danger:hover:not(:disabled) {
    background: var(--danger-dark);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

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

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: 1rem;
    border-radius: var(--radius-md);
}

.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: 0.8rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-full);
}

.btn-block {
    width: 100%;
}

/* ========================================
   Forms
======================================== */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--space-2);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    color: var(--gray-900);
    background: var(--white);
    transition: all var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(5, 150, 105, 0.1);
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-hint {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: var(--space-1);
}

.form-error {
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: var(--space-2);
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: 40px;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* ========================================
   Badges
======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: rgba(5, 150, 105, 0.1);
    color: var(--primary);
}

.badge-success {
    background: rgba(234, 179, 8, 0.1);
    color: var(--secondary);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--accent);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.badge-gray {
    background: var(--gray-200);
    color: var(--gray-600);
}

/* ========================================
   Tables
======================================== */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    font-weight: 600;
    color: var(--gray-600);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--gray-50);
}

.table tbody tr:hover {
    background: var(--gray-50);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ========================================
   Alerts / Messages
======================================== */
.alert {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.alert-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: var(--secondary-dark);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    color: var(--accent-dark);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--danger-dark);
}

.alert-info {
    background: rgba(5, 150, 105, 0.1);
    border: 1px solid rgba(5, 150, 105, 0.2);
    color: var(--primary-dark);
}

/* Fun Message Box */
.fun-message {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    text-align: center;
    margin-bottom: var(--space-6);
    position: relative;
    overflow: hidden;
}

.fun-message::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

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

.fun-message-text {
    position: relative;
    font-size: 1.1rem;
    font-weight: 500;
    line-height: 1.5;
}

.fun-message-emoji {
    font-size: 2.5rem;
    margin-bottom: var(--space-3);
    display: block;
}

/* ========================================
   Tournament Bracket
======================================== */
.bracket-container {
    overflow-x: auto;
    padding: var(--space-6);
}

.bracket {
    display: flex;
    gap: var(--space-8);
    min-width: max-content;
}

.bracket-round {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    gap: var(--space-6);
    min-width: 250px;
}

.bracket-round-title {
    text-align: center;
    font-weight: 700;
    color: var(--gray-500);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    margin-bottom: var(--space-4);
}

.bracket-match {
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.bracket-player {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--gray-100);
    transition: background var(--transition);
}

.bracket-player:last-child {
    border-bottom: none;
}

.bracket-player.winner {
    background: rgba(34, 197, 94, 0.05);
}

.bracket-player.winner .bracket-player-name {
    font-weight: 700;
    color: var(--secondary);
}

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

.bracket-player-score {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--dark);
    min-width: 30px;
    text-align: center;
}

.bracket-player.winner .bracket-player-score {
    color: var(--secondary);
}

.bracket-vs {
    text-align: center;
    padding: var(--space-2);
    font-size: 0.75rem;
    color: var(--gray-400);
    font-weight: 700;
}

/* ========================================
   Match Card
======================================== */
.match-card {
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

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

.match-card.completed {
    border-color: var(--secondary-light);
}

.match-card-header {
    background: var(--gray-50);
    padding: var(--space-3) var(--space-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
}

.match-card-body {
    padding: var(--space-4);
}

.match-players {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.match-player {
    flex: 1;
    text-align: center;
}

.match-player-name {
    font-weight: 600;
    margin-top: var(--space-2);
}

.match-vs {
    font-weight: 700;
    color: var(--gray-400);
    font-size: 0.9rem;
}

.match-score {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--gray-200);
}

.match-score-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--dark);
}

.match-score-separator {
    color: var(--gray-400);
    font-size: 1.5rem;
}

/* ========================================
   Leaderboard
======================================== */
.leaderboard-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    border-bottom: 1px solid var(--gray-100);
    transition: background var(--transition);
}

.leaderboard-item:hover {
    background: var(--gray-50);
}

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

.leaderboard-rank {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.leaderboard-rank.gold {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: var(--white);
}

.leaderboard-rank.silver {
    background: linear-gradient(135deg, #d1d5db, #9ca3af);
    color: var(--white);
}

.leaderboard-rank.bronze {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: var(--white);
}

.leaderboard-rank.default {
    background: var(--gray-200);
    color: var(--gray-600);
}

.leaderboard-player {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.leaderboard-stats {
    display: flex;
    gap: var(--space-6);
    font-size: 0.9rem;
}

.leaderboard-stat {
    text-align: center;
}

.leaderboard-stat-label {
    color: var(--gray-500);
    font-size: 0.75rem;
    text-transform: uppercase;
}

.leaderboard-stat-value {
    font-weight: 700;
    color: var(--dark);
}

/* ========================================
   Bottom Navigation (Mobile)
======================================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-around;
    padding: var(--space-2) 0;
    padding-bottom: calc(var(--space-2) + env(safe-area-inset-bottom));
    z-index: 100;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
}

@media (min-width: 768px) {
    .bottom-nav {
        display: none;
    }
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    color: var(--gray-500);
    font-size: 0.7rem;
    font-weight: 500;
    text-decoration: none;
    padding: var(--space-2);
    transition: color var(--transition);
}

.bottom-nav-item.active {
    color: var(--primary);
}

.bottom-nav-icon {
    font-size: 1.5rem;
}

/* ========================================
   Modals
======================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

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

.modal {
    background: var(--white);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.modal-close {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--gray-100);
    color: var(--gray-600);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition);
}

.modal-close:hover {
    background: var(--gray-200);
}

.modal-body {
    padding: var(--space-6);
}

.modal-footer {
    padding: var(--space-4) var(--space-6);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
}

/* ========================================
   Notifications Dropdown
======================================== */
.notifications-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--space-2);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 320px;
    max-height: 400px;
    overflow: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition);
    z-index: 200;
}

.notifications-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.notification-item {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4);
    border-bottom: 1px solid var(--gray-100);
    transition: background var(--transition);
}

.notification-item:hover {
    background: var(--gray-50);
}

.notification-item.unread {
    background: rgba(5, 150, 105, 0.05);
}

.notification-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.notification-content {
    flex: 1;
    min-width: 0;
}

.notification-title {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: var(--space-1);
}

.notification-message {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.4;
}

.notification-time {
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-top: var(--space-1);
}

/* ========================================
   Page Specific: Login/Register
======================================== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-dark);
    padding: var(--space-6);
}

.auth-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    width: 100%;
    max-width: 420px;
    overflow: hidden;
}

.auth-header {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--space-8);
    text-align: center;
}

.auth-logo {
    font-size: 4rem;
    margin-bottom: var(--space-4);
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--space-2);
}

.auth-subtitle {
    opacity: 0.9;
    font-size: 0.95rem;
}

.auth-body {
    padding: var(--space-8);
}

.auth-footer {
    padding: var(--space-6);
    background: var(--gray-50);
    text-align: center;
    border-top: 1px solid var(--gray-200);
}

.auth-switch {
    color: var(--gray-600);
}

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

/* ========================================
   Page Specific: Dashboard
======================================== */
.dashboard-header {
    margin-bottom: var(--space-8);
}

.welcome-section {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.welcome-text h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
}

.welcome-text p {
    color: var(--gray-500);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
}

/* ========================================
   Page Grid Layouts
======================================== */
.page-grid {
    display: grid;
    gap: var(--space-6);
}

@media (min-width: 992px) {
    .page-grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .page-grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .page-grid-sidebar {
        grid-template-columns: 1fr 350px;
    }
}

/* ========================================
   Tournament Card
======================================== */
.tournament-card {
    position: relative;
    overflow: hidden;
}

.tournament-card-banner {
    height: 80px;
    background: var(--gradient-primary);
    position: relative;
}

.tournament-card-status {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
}

.tournament-card-body {
    padding: var(--space-5);
}

.tournament-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.tournament-card-prize {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--accent);
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.tournament-card-meta {
    display: flex;
    gap: var(--space-4);
    font-size: 0.85rem;
    color: var(--gray-500);
}

.tournament-card-footer {
    padding: var(--space-4) var(--space-5);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tournament-participants {
    display: flex;
    align-items: center;
}

.tournament-participants .avatar {
    margin-left: -8px;
    border: 2px solid var(--white);
}

.tournament-participants .avatar:first-child {
    margin-left: 0;
}

/* ========================================
   Profile Page
======================================== */
.profile-header {
    background: var(--gradient-dark);
    color: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

@media (min-width: 768px) {
    .profile-header {
        flex-direction: row;
        text-align: left;
        gap: var(--space-8);
    }
}

.profile-avatar {
    margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
    .profile-avatar {
        margin-bottom: 0;
    }
}

.profile-info h1 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: var(--space-2);
}

.profile-info p {
    opacity: 0.8;
    margin-bottom: var(--space-4);
}

.profile-stats {
    display: flex;
    gap: var(--space-6);
}

.profile-stat {
    text-align: center;
}

.profile-stat-value {
    font-size: 1.5rem;
    font-weight: 800;
}

.profile-stat-label {
    font-size: 0.8rem;
    opacity: 0.7;
    text-transform: uppercase;
}

/* ========================================
   Activity Feed
======================================== */
.activity-item {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4);
    border-bottom: 1px solid var(--gray-100);
}

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

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.activity-description {
    font-size: 0.9rem;
    color: var(--gray-600);
}

.activity-time {
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-top: var(--space-1);
}

/* ========================================
   Empty States
======================================== */
.empty-state {
    text-align: center;
    padding: var(--space-12);
    color: var(--gray-500);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--space-2);
}

.empty-state-description {
    margin-bottom: var(--space-6);
}

/* ========================================
   Loading States
======================================== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ========================================
   Utilities
======================================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-primary { color: var(--primary); }
.text-success { color: var(--secondary); }
.text-warning { color: var(--accent); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--gray-500); }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

.hidden { display: none; }

@media (min-width: 768px) {
    .md\:hidden { display: none; }
    .md\:flex { display: flex; }
    .md\:block { display: block; }
}

/* ========================================
   PWA Install Banner
======================================== */
.pwa-banner {
    position: fixed;
    bottom: 80px;
    left: var(--space-4);
    right: var(--space-4);
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: none;
    align-items: center;
    gap: var(--space-3);
    z-index: 90;
}

@media (min-width: 768px) {
    .pwa-banner {
        bottom: var(--space-4);
        max-width: 400px;
    }
}

.pwa-banner.show {
    display: flex;
}

.pwa-banner-icon {
    font-size: 2rem;
}

.pwa-banner-content {
    flex: 1;
}

.pwa-banner-title {
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.pwa-banner-text {
    font-size: 0.85rem;
    opacity: 0.9;
}

.pwa-banner-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    border: none;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

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

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

.animate-fadeIn {
    animation: fadeIn var(--transition-slow) ease;
}

.animate-slideUp {
    animation: slideUp var(--transition-slow) ease;
}

.animate-slideInRight {
    animation: slideInRight var(--transition-slow) ease;
}

/* Staggered animations */
.stagger > *:nth-child(1) { animation-delay: 0ms; }
.stagger > *:nth-child(2) { animation-delay: 50ms; }
.stagger > *:nth-child(3) { animation-delay: 100ms; }
.stagger > *:nth-child(4) { animation-delay: 150ms; }
.stagger > *:nth-child(5) { animation-delay: 200ms; }
.stagger > *:nth-child(6) { animation-delay: 250ms; }

/* ========================================
   Dark Mode
======================================== */
[data-theme="dark"] {
    --gray-900: #f9fafb;
    --gray-800: #f3f4f6;
    --gray-700: #e5e7eb;
    --gray-600: #d1d5db;
    --gray-500: #9ca3af;
    --gray-400: #6b7280;
    --gray-300: #4b5563;
    --gray-200: #374151;
    --gray-100: #1f2937;
    --gray-50: #111827;
    --white: #0f172a;

    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

[data-theme="dark"] body {
    background: #0f172a;
    color: #f9fafb;
}

[data-theme="dark"] .card {
    background: #1e293b;
    border: 1px solid #334155;
}

[data-theme="dark"] .card-header {
    border-bottom-color: #334155;
}

[data-theme="dark"] .card-footer {
    background: #0f172a;
    border-top-color: #334155;
}

[data-theme="dark"] .form-control {
    background: #1e293b;
    border-color: #334155;
    color: #f9fafb;
}

[data-theme="dark"] .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(5, 150, 105, 0.2);
}

[data-theme="dark"] .btn-secondary {
    background: #334155;
    color: #f9fafb;
}

[data-theme="dark"] .btn-secondary:hover:not(:disabled) {
    background: #475569;
}

[data-theme="dark"] .btn-outline {
    border-color: var(--primary);
    color: var(--primary-light);
}

[data-theme="dark"] .table th {
    background: #1e293b;
}

[data-theme="dark"] .table td,
[data-theme="dark"] .table th {
    border-bottom-color: #334155;
}

[data-theme="dark"] .table tbody tr:hover {
    background: #334155;
}

[data-theme="dark"] .bottom-nav {
    background: #1e293b;
    border-top-color: #334155;
}

[data-theme="dark"] .bottom-nav-item {
    color: #9ca3af;
}

[data-theme="dark"] .bottom-nav-item.active {
    color: var(--primary-light);
}

[data-theme="dark"] .modal {
    background: #1e293b;
}

[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer {
    border-color: #334155;
}

[data-theme="dark"] .modal-footer {
    background: #0f172a;
}

[data-theme="dark"] .activity-item {
    border-bottom-color: #334155;
}

[data-theme="dark"] .leaderboard-item {
    border-bottom-color: #334155;
}

[data-theme="dark"] .leaderboard-item:hover {
    background: #334155;
}

[data-theme="dark"] .notifications-dropdown {
    background: #1e293b;
}

[data-theme="dark"] .notification-item {
    border-bottom-color: #334155;
}

[data-theme="dark"] .notification-item:hover {
    background: #334155;
}

[data-theme="dark"] .auth-card {
    background: #1e293b;
}

[data-theme="dark"] .auth-footer {
    background: #0f172a;
    border-top-color: #334155;
}

[data-theme="dark"] select.form-control {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
}

/* Dark mode toggle button */
.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .theme-toggle {
    background: rgba(255, 255, 255, 0.1);
}