:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --success-color: #4cc9f0;
    --danger-color: #f72585;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --border-radius: 10px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fb;
    color: var(--dark-color);
}
#leaderboardPage{
    max-width: 1400px;
    margin: 40px auto;
    padding: 20px 40px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}
#leaderboardPage h2 {
    margin-bottom: 30px;
    font-size: 2.4em;
    color: var(--primary-color);
}

.controls {
    margin-bottom: 20px;
    padding: 20px;
    background: linear-gradient(135deg, #f5f7fb 0%, #e9ecef 100%);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.control-group {
    margin-bottom: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}


.control-group select {
    padding: 6px 12px;
    border: 1px solid #ced4da;
    border-radius: var(--border-radius);
    font-size: 14px;
}

/* ---------- Buttons ---------- */

.btn {
    padding: 10px 16px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

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


/* ---------- Table ---------- */

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background: white;
}

.table th,
.table td {
    border: 1px solid #dee2e6;
    padding: 12px;
    text-align: left;
}

.table th {
    background-color: var(--primary-color);
    color: white;
}

.table tr:nth-child(even) {
    background-color: #f8f9fa;
}

.table tbody tr:hover {
    background-color: #f0f4ff;
}

.table tbody tr td:first-child {
    text-align: center;
    font-weight: 600;
    color: var(--primary-color);
}

/* ---------- Responsive ---------- */

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .navbar a {
        margin: 10px 0 0 0;
    }

    .controls {
        padding: 15px;
    }

    .control-group label {
        min-width: auto;
    }

    .control-group select,
    .btn {
        width: 100%;
    }

    #leaderboardPage h2 {
        font-size: 1.8em;
    }
}