body {
    margin: 0;
    background: #111;
    color: white;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding-top: 50px;
}

h1 {
    color: #ffcc00;
    font-size: 36px;
    text-shadow: 0 0 15px rgba(255, 204, 0, 0.4);
    margin-bottom: 30px;
}

.leaderboard-container {
    width: 90%;
    max-width: 500px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 204, 0, 0.2);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 20px;
}

th {
    padding: 15px;
    border-bottom: 2px solid #ffcc00;
    color: #ffcc00;
}

td {
    padding: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.rank-1 {
    color: #ffd700;
    font-weight: bold;
}

/* Gold */
.rank-2 {
    color: #c0c0c0;
    font-weight: bold;
}

/* Silver */
.rank-3 {
    color: #cd7f32;
    font-weight: bold;
}

/* Bronze */

.score-val {
    font-family: monospace;
    font-weight: bold;
    color: #ffcc00;
}

.btn {
    background: transparent;
    color: #ffcc00;
    border: 2px solid #ffcc00;
    padding: 12px 30px;
    font-size: 18px;
    font-weight: bold;
    border-radius: 30px;
    cursor: pointer;
    margin-top: 40px;
    text-decoration: none;
    transition: all 0.2s;
}

.btn:hover {
    background: #ffcc00;
    color: black;
    box-shadow: 0 0 20px rgba(255, 204, 0, 0.3);
}

#loading {
    margin: 20px;
    color: #888;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    body {
        padding-top: 30px;
        min-height: 100vh;
    }

    h1 {
        font-size: 28px;
        margin-bottom: 20px;
    }

    .leaderboard-container {
        width: 95%;
        padding: 15px;
    }

    table {
        font-size: 16px;
    }

    th {
        padding: 10px;
    }

    td {
        padding: 8px;
    }

    .btn {
        padding: 10px 25px;
        font-size: 16px;
        margin-top: 30px;
    }
}

@media (max-width: 480px) {
    body {
        padding-top: 20px;
    }

    h1 {
        font-size: 22px;
        margin-bottom: 15px;
    }

    .leaderboard-container {
        width: 98%;
        padding: 12px;
        border-radius: 15px;
    }

    table {
        font-size: 14px;
    }

    th {
        padding: 8px 4px;
        font-size: 12px;
    }

    td {
        padding: 6px 4px;
        font-size: 12px;
    }

    .rank-1,
    .rank-2,
    .rank-3 {
        font-size: 14px;
    }

    .score-val {
        font-size: 14px;
    }

    .btn {
        padding: 8px 20px;
        font-size: 14px;
        margin-top: 20px;
    }

    #loading {
        font-size: 14px;
    }
}

.hidden {
    display: none !important;
}