/**
 * BETA-PB Tournament System
 * Main Stylesheet - FPS Gaming Theme
 */

/* ===== CSS Variables ===== */
:root {
    /* Primary Colors - Military/Tactical */
    --primary: #ff4655;
    --primary-dark: #d63447;
    --primary-glow: rgba(255, 70, 85, 0.5);
    
    /* Secondary Colors */
    --secondary: #00d4aa;
    --secondary-dark: #00b894;
    --secondary-glow: rgba(0, 212, 170, 0.5);
    
    /* Accent Colors */
    --accent-gold: #ffd700;
    --accent-orange: #ff6b35;
    --accent-blue: #00a8ff;
    
    /* Background Colors */
    --bg-dark: #0a0a0f;
    --bg-darker: #05050a;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a25;
    --bg-gradient: linear-gradient(135deg, #0a0a0f 0%, #1a1a25 50%, #0a0a0f 100%);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;
    
    /* Border Colors */
    --border-color: #2a2a3a;
    --border-glow: rgba(255, 70, 85, 0.3);
    
    /* Status Colors */
    --success: #00d26a;
    --warning: #ffc107;
    --danger: #ff4655;
    --info: #00a8ff;
    
    /* Fonts */
    --font-display: 'Orbitron', 'Rajdhani', sans-serif;
    --font-body: 'Rajdhani', 'Kanit', sans-serif;
    --font-thai: 'Kanit', 'Prompt', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px var(--primary-glow);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-dark);
    background-image: 
        radial-gradient(ellipse at top, rgba(255, 70, 85, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at bottom, rgba(0, 168, 255, 0.1) 0%, transparent 50%);
    min-height: 100vh;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 2px;
}

h1 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent-orange) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px var(--primary-glow);
}

h2 {
    font-size: 2rem;
    color: var(--text-primary);
}

h3 {
    font-size: 1.5rem;
    color: var(--secondary);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

a:hover {
    color: var(--secondary);
    text-shadow: 0 0 10px var(--secondary-glow);
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-lg);
}

/* ===== Header/Navigation ===== */
.navbar {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.navbar-brand img {
    height: 40px;
}

.navbar-brand span {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 3px;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: var(--transition-normal);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-normal);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 0 20px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--primary-glow), 0 10px 20px rgba(0, 0, 0, 0.3);
}

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

.btn-secondary:hover {
    background: var(--secondary);
    color: var(--bg-dark);
    box-shadow: 0 0 20px var(--secondary-glow);
}

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

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #00a854 100%);
    color: white;
    border-color: var(--success);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #cc3344 100%);
    color: white;
    border-color: var(--danger);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning) 0%, #e6ac00 100%);
    color: var(--bg-dark);
    border-color: var(--warning);
}

.btn-sm {
    font-size: 0.8rem;
    padding: var(--spacing-xs) var(--spacing-md);
}

.btn-lg {
    font-size: 1rem;
    padding: var(--spacing-md) var(--spacing-xl);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ===== Cards ===== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
}

.card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-5px);
}

.card-header {
    background: rgba(255, 70, 85, 0.1);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
}

.card-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
}

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

.tournament-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
    background-size: 200% 100%;
    animation: gradientMove 3s linear infinite;
}

@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.tournament-card .card-body {
    position: relative;
}

.tournament-status {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
}

.tournament-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.tournament-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.tournament-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.tournament-meta-item i {
    color: var(--primary);
}

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

.form-label {
    display: block;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    background: var(--bg-darker);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

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

.form-control:disabled {
    background: var(--bg-card);
    cursor: not-allowed;
}

.form-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

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

/* Input with icon */
.input-group {
    position: relative;
}

.input-group .form-control {
    padding-left: 45px;
}

.input-group-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

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

.badge-primary {
    background: rgba(255, 70, 85, 0.2);
    color: var(--primary);
    border: 1px solid var(--primary);
}

.badge-secondary {
    background: rgba(160, 160, 176, 0.2);
    color: var(--text-secondary);
    border: 1px solid var(--text-muted);
}

.badge-success {
    background: rgba(0, 210, 106, 0.2);
    color: var(--success);
    border: 1px solid var(--success);
}

.badge-warning {
    background: rgba(255, 193, 7, 0.2);
    color: var(--warning);
    border: 1px solid var(--warning);
}

.badge-danger {
    background: rgba(255, 70, 85, 0.2);
    color: var(--danger);
    border: 1px solid var(--danger);
}

.badge-info {
    background: rgba(0, 168, 255, 0.2);
    color: var(--info);
    border: 1px solid var(--info);
}

.badge-gold {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.3), rgba(255, 165, 0, 0.3));
    color: var(--accent-gold);
    border: 1px solid var(--accent-gold);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

/* ===== Tables ===== */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

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

.table th {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    background: rgba(255, 70, 85, 0.1);
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

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

.table tbody tr:hover {
    background: rgba(255, 70, 85, 0.05);
}

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

/* ===== Alerts ===== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
}

.alert-success {
    background: rgba(0, 210, 106, 0.1);
    border-color: var(--success);
    color: var(--success);
}

.alert-danger {
    background: rgba(255, 70, 85, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    border-color: var(--warning);
    color: var(--warning);
}

.alert-info {
    background: rgba(0, 168, 255, 0.1);
    border-color: var(--info);
    color: var(--info);
}

/* ===== Online Status ===== */
.online-status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.85rem;
}

.online-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.online-dot.online {
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
}

.online-dot.offline {
    background: var(--text-muted);
    animation: none;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

/* ===== Countdown Timer ===== */
.countdown {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.countdown-item {
    text-align: center;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    min-width: 80px;
}

.countdown-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    text-shadow: 0 0 20px var(--primary-glow);
}

.countdown-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 1px;
}

/* ===== Progress Bar ===== */
.progress {
    height: 8px;
    background: var(--bg-darker);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: var(--radius-xl);
    transition: width 0.5s ease;
}

/* ===== Player Card ===== */
.player-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

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

.player-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
}

.player-info {
    flex: 1;
}

.player-name {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.player-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===== Match Card ===== */
.match-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    position: relative;
}

.match-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.match-round {
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.match-players {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-md);
    align-items: center;
}

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

.match-player.winner {
    position: relative;
}

.match-player.winner::after {
    content: '👑';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.5rem;
}

.match-vs {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-shadow: 0 0 20px var(--primary-glow);
}

.match-score {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-md);
    font-family: var(--font-display);
    font-size: 1.5rem;
}

.match-score span {
    background: var(--bg-darker);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
}

/* ===== Challenge Box ===== */
.challenge-box {
    background: linear-gradient(135deg, rgba(255, 70, 85, 0.1), rgba(0, 168, 255, 0.1));
    border: 2px solid var(--primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.challenge-box h4 {
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.challenge-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.challenge-item {
    background: var(--bg-darker);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.challenge-item label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
}

.challenge-item span {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--secondary);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    padding: var(--spacing-xxl) 0;
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 70, 85, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 168, 255, 0.15) 0%, transparent 50%);
    z-index: -1;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

/* ===== Grid System ===== */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-md) * -1);
}

.col {
    flex: 1;
    padding: 0 var(--spacing-md);
}

.col-auto { flex: 0 0 auto; }
.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

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

.text-primary { color: var(--primary) !important; }
.text-secondary { color: var(--secondary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-muted { color: var(--text-muted) !important; }

.bg-dark { background-color: var(--bg-dark) !important; }
.bg-card { background-color: var(--bg-card) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--spacing-sm) !important; }
.mt-2 { margin-top: var(--spacing-md) !important; }
.mt-3 { margin-top: var(--spacing-lg) !important; }
.mt-4 { margin-top: var(--spacing-xl) !important; }
.mt-5 { margin-top: var(--spacing-xxl) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--spacing-sm) !important; }
.mb-2 { margin-bottom: var(--spacing-md) !important; }
.mb-3 { margin-bottom: var(--spacing-lg) !important; }
.mb-4 { margin-bottom: var(--spacing-xl) !important; }
.mb-5 { margin-bottom: var(--spacing-xxl) !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--spacing-sm) !important; }
.p-2 { padding: var(--spacing-md) !important; }
.p-3 { padding: var(--spacing-lg) !important; }
.p-4 { padding: var(--spacing-xl) !important; }

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

.justify-center { justify-content: center !important; }
.justify-between { justify-content: space-between !important; }
.align-center { align-items: center !important; }

.gap-1 { gap: var(--spacing-sm) !important; }
.gap-2 { gap: var(--spacing-md) !important; }
.gap-3 { gap: var(--spacing-lg) !important; }

.w-100 { width: 100% !important; }
.h-100 { height: 100% !important; }

/* ===== Animations ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.animate-fadeIn { animation: fadeIn 0.5s ease forwards; }
.animate-slideIn { animation: slideIn 0.5s ease forwards; }
.animate-scaleIn { animation: scaleIn 0.3s ease forwards; }

/* Stagger animations */
.stagger > * { opacity: 0; }
.stagger > *:nth-child(1) { animation: fadeIn 0.5s ease 0.1s forwards; }
.stagger > *:nth-child(2) { animation: fadeIn 0.5s ease 0.2s forwards; }
.stagger > *:nth-child(3) { animation: fadeIn 0.5s ease 0.3s forwards; }
.stagger > *:nth-child(4) { animation: fadeIn 0.5s ease 0.4s forwards; }
.stagger > *:nth-child(5) { animation: fadeIn 0.5s ease 0.5s forwards; }

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

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

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition-normal);
}

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

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

.modal-title {
    margin: 0;
    font-size: 1.2rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--primary);
}

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

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

/* ===== Footer ===== */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xxl);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .container { max-width: 100%; }
}

@media (max-width: 992px) {
    h1 { font-size: 2rem; }
    .hero h1 { font-size: 2.5rem; }
    
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (max-width: 768px) {
    body { font-size: 14px; }
    
    h1 { font-size: 1.75rem; }
    .hero h1 { font-size: 2rem; }
    
    .navbar-nav { display: none; }
    
    .col-sm-12 { flex: 0 0 100%; max-width: 100%; }
    
    .match-players { 
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .match-vs { margin: var(--spacing-md) 0; }
    
    .challenge-info { grid-template-columns: 1fr; }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 576px) {
    .container { padding: 0 var(--spacing-md); }
    
    .btn { padding: var(--spacing-sm) var(--spacing-md); }
    
    .countdown-item { min-width: 60px; padding: var(--spacing-sm); }
    .countdown-value { font-size: 1.5rem; }
}

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

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

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

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

/* ===== Selection ===== */
::selection {
    background: var(--primary);
    color: white;
}