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

:root {
    --bg-color-1: #0A1128;
    --bg-color-2: #1A2849;
    --accent-color: #60A5FA;
    --accent-hover: #3B82F6;
    --accent-secondary: #8B5CF6;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --success: #10b981;
    --danger: #ef4444;
    --gold: #fbbf24;
    --silver: #cbd5e1;
    --bronze: #b45309;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', sans-serif;
    background: linear-gradient(135deg, var(--bg-color-1), var(--bg-color-2));
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    text-decoration: none;
    color: var(--accent-color);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-hover);
}

.navbar {
    background: rgba(10, 17, 40, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(to right, var(--accent-color), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-primary);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.nav-links a:hover, .nav-links a.active {
    background: var(--glass-bg);
    color: var(--accent-color);
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
    flex: 1;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 1rem;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: 2rem;
    margin-bottom: 2rem;
    animation: fadeIn 0.5s ease-out;
}

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

h1, h2, h3 {
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.page-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: linear-gradient(to right, var(--accent-color), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.2);
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(96, 165, 250, 0.2);
}

select.form-control option {
    background-color: var(--bg-color-2);
    color: var(--text-primary);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    border: none;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Outfit', sans-serif;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    color: #fff;
    box-shadow: 0 4px 15px rgba(96, 165, 250, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(96, 165, 250, 0.6);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 0.5rem;
}

.table th {
    text-align: left;
    padding: 1rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

.table td {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
    transition: background 0.3s ease;
}

.table tr td:first-child {
    border-left: 1px solid var(--glass-border);
    border-top-left-radius: 0.5rem;
    border-bottom-left-radius: 0.5rem;
}

.table tr td:last-child {
    border-right: 1px solid var(--glass-border);
    border-top-right-radius: 0.5rem;
    border-bottom-right-radius: 0.5rem;
}

.table tbody tr:hover td {
    background: rgba(255, 255, 255, 0.08);
}

/* Leaderboard Specific */
.leaderboard-row {
    position: relative;
}

.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    font-weight: 800;
    font-size: 1.25rem;
}

.rank-1 .rank-badge {
    background: linear-gradient(135deg, #fde047, #f59e0b);
    color: #fff;
    box-shadow: 0 0 15px rgba(251, 191, 36, 0.5);
}

.rank-2 .rank-badge {
    background: linear-gradient(135deg, #e2e8f0, #94a3b8);
    color: #1e293b;
}

.rank-3 .rank-badge {
    background: linear-gradient(135deg, #fdba74, #b45309);
    color: #fff;
}

.score-display {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-color);
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.alert-success {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid var(--success);
    color: #34d399;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid var(--danger);
    color: #f87171;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--glass-border);
    margin-top: auto;
}