@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

:root {
    --background-color: #f5f5f5;
    --surface-color: #ffffff;
    --primary-color: #6200ee;
    --on-surface-color: #000000;
    --on-surface-variant-color: #5f5f5f;
    --border-color: #e0e0e0;
    --hover-color: #f0f0f0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--on-surface-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

#player-container {
    width: 90%;
    max-width: 1000px;
    background-color: var(--surface-color);
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    border-radius: 15px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
    transition: background-color 0.3s ease;
}

.header {
    padding: 10px 20px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.header label {
    margin-right: 10px;
    font-weight: 500;
    color: var(--on-surface-variant-color);
}



#media-player {
    width: 100%;
}

#upload-box {
    padding: 50px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#upload-box:hover {
    background-color: var(--hover-color);
}

#upload-box p {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--on-surface-variant-color);
}

#file-input {
    display: none;
}

#playlist {
    max-height: 300px;
    overflow-y: auto;
    border-top: 1px solid var(--border-color);
}

.playlist-item {
    padding: 15px 20px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    border-bottom: 1px solid var(--border-color);
    font-weight: 500;
}

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

.playlist-item:hover {
    background-color: var(--hover-color);
}

.playlist-item.active {
    background-color: var(--primary-color);
    color: #ffffff;
    font-weight: 600;
}

footer {
    text-align: center;
    padding: 10px;
    color: var(--on-surface-variant-color);
    font-size: 0.9rem;
}