:root {
    --bg-color: #0a0b1e;
    --card-bg: rgba(255, 255, 255, 0.05);
    --primary: #00d2ff;
    --secondary: #9d50bb;
    --accent: #f1c40f;
    --text: #ffffff;
    --text-dim: #95a5a6;
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 0% 0%, rgba(157, 80, 187, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(0, 210, 255, 0.15) 0px, transparent 50%);
    color: var(--text);
    min-height: 100vh;
    padding: 2rem;
    overflow-x: hidden;
}

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

header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease-out;
}

h1 {
    font-size: 3.5rem;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.subtitle {
    color: var(--text-dim);
    font-size: 1.1rem;
    letter-spacing: 1px;
}

/* Dashboard Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1.5rem;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeInUp 0.5s ease-out backwards;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.5);
    border-color: var(--primary);
}

.stat-card h3 {
    color: var(--text-dim);
    font-size: 0.9rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.stat-card .value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

/* Leaderboard Table */
.leaderboard-section {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 2rem;
    padding: 2.5rem;
    box-shadow: var(--shadow);
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

h2 {
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

h2 i {
    color: var(--accent);
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th {
    padding: 1rem;
    color: var(--text-dim);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--glass-border);
}

td {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

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

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.rank-badge {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 800;
    font-size: 0.9rem;
}

.rank-1 { background: var(--accent); color: #000; }
.rank-2 { background: #bdc3c7; color: #000; }
.rank-3 { background: #e67e22; color: #000; }

.player-name {
    font-weight: 600;
    color: var(--text);
}

.score-value {
    color: var(--primary);
    font-weight: 700;
}

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

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

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    body { padding: 1rem; }
    .leaderboard-section { padding: 1.5rem; }
}

footer {
    text-align: center;
    margin-top: 4rem;
    padding-bottom: 2rem;
    color: var(--text-dim);
    font-size: 0.9rem;
}

footer a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

footer a:hover {
    color: var(--secondary);
}

/* Mode Selector Tabs */
.mode-selector {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
    animation: fadeInDown 0.8s ease-out;
}

.mode-tab {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mode-tab:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 210, 255, 0.1);
}

.mode-tab.active {
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-color: transparent;
    box-shadow: 0 0 20px rgba(0, 210, 255, 0.4);
    transform: scale(1.05);
}

.mode-tab i {
    font-size: 1.1rem;
}