:root {
    --primary-color: #1DB954;
    --secondary-color: #191414;
    --text-color: #333;
    --background-color: #f5f5f5;
    --error-color: #e74c3c;
    --success-color: #2ecc71;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

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

.auth-container {
    text-align: center;
    max-width: 400px;
    margin: 4rem auto;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.game-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.section {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hidden {
    display: none;
}

h1, h2 {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.settings-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.settings-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s;
}

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

.btn-primary:hover {
    background-color: #1ed760;
}

.btn-spotify {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-spotify:hover {
    background-color: #1ed760;
}

.results {
    margin-top: 1rem;
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.playlist-item {
    padding: 1rem;
    border-bottom: 1px solid #ddd;
    cursor: pointer;
}

.playlist-item:hover {
    background-color: #f5f5f5;
}

.playlist-item:last-child {
    border-bottom: none;
}

#game-section {
    grid-column: 1 / -1;
}

#current-track {
    margin: 2rem 0;
    text-align: center;
}

#answer-form {
    max-width: 600px;
    margin: 0 auto;
}

#scores {
    margin-top: 2rem;
}

.score-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    border-bottom: 1px solid #ddd;
}

.score-item:last-child {
    border-bottom: none;
}

@media (max-width: 768px) {
    .game-container {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 1rem;
    }

    .section {
        padding: 1.5rem;
    }
}