/* Leaderboard Modal Styles */
#leaderboard-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

#leaderboard-modal.visible {
    opacity: 1;
    pointer-events: auto;
}

.leaderboard-content {
    background: #1a1a1a;
    border: 2px solid var(--primary-neon, #0ff);
    box-shadow: 0 0 20px var(--primary-neon, #0ff);
    border-radius: 10px;
    padding: 20px;
    width: 90%;
    max-width: 500px;
    text-align: center;
    color: #fff;
    font-family: 'Orbitron', sans-serif;
    position: relative;
}

.leaderboard-content h2 {
    margin-top: 0;
    color: var(--primary-neon, #0ff);
    text-shadow: 0 0 10px var(--primary-neon, #0ff);
}

.leaderboard-table {
    width: 100%;
    margin: 20px 0;
    border-collapse: collapse;
}

.leaderboard-table th,
.leaderboard-table td {
    padding: 10px;
    border-bottom: 1px solid #333;
    text-align: left;
}

.leaderboard-table th {
    color: #aaa;
    font-size: 0.9em;
    text-transform: uppercase;
}

.leaderboard-table td.rank {
    color: var(--secondary-neon, #f0f);
    font-weight: bold;
    width: 40px;
}

.leaderboard-table td.score {
    text-align: right;
    color: #ff0;
}

.leaderboard-form {
    margin-top: 20px;
    display: none;
    /* Hidden by default */
}

.leaderboard-form.visible {
    display: block;
}

.leaderboard-form input {
    background: #333;
    border: 1px solid #555;
    color: #fff;
    padding: 10px;
    width: 70%;
    border-radius: 5px;
    font-family: 'Roboto', sans-serif;
    outline: none;
}

.leaderboard-form input:focus {
    border-color: var(--primary-neon, #0ff);
}

.leaderboard-form button {
    background: var(--primary-neon, #0ff);
    color: #000;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    margin-left: 10px;
    transition: all 0.2s;
}

.leaderboard-form button:hover {
    background: #fff;
    box-shadow: 0 0 10px #fff;
}

.close-leaderboard {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
}

.close-leaderboard:hover {
    color: #f00;
}

.loading-spinner {
    display: inline-block;
    width: 30px;
    height: 30px;
    border: 3px solid rgba(255, 255, 255, .3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    margin: 20px auto;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}