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

:root {
    /* Base scene colors */
    --bg-dark: #0a0a12;
    --mountain: #1a1a2e;
    --purple-glow: #6b2d7b;
    --forest-green: #1a472a;
    --silver: #c0c0c0;
    --water: #0d1b2a;

    /* Signature pink/cyan gradient */
    --signature-pink: #ff69b4;
    --signature-cyan: #00ffff;
}

body {
    background: var(--bg-dark);
    overflow: hidden;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#visualizer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#controls {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    text-align: center;
    padding: 30px 40px;
    background: rgba(10, 10, 18, 0.85);
    border-radius: 16px;
    border: 1px solid rgba(107, 45, 123, 0.4);
    box-shadow: 0 0 40px rgba(107, 45, 123, 0.3);
    backdrop-filter: blur(10px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

#controls.minimized {
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 15px 25px;
}

#controls.minimized #title,
#controls.minimized #subtitle,
#controls.minimized #audio-controls,
#controls.minimized .divider {
    display: none;
}

#title {
    font-size: 2.5rem;
    font-weight: 300;
    letter-spacing: 4px;
    background: linear-gradient(135deg, var(--signature-pink), var(--signature-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 5px;
}

#subtitle {
    font-size: 1rem;
    color: var(--silver);
    opacity: 0.7;
    margin-bottom: 30px;
    letter-spacing: 2px;
}

#audio-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

#audio-url {
    padding: 12px 16px;
    width: 280px;
    background: rgba(26, 26, 46, 0.8);
    border: 1px solid rgba(107, 45, 123, 0.5);
    border-radius: 8px;
    color: var(--silver);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.3s;
}

#audio-url:focus {
    border-color: var(--signature-pink);
}

#audio-url::placeholder {
    color: rgba(192, 192, 192, 0.4);
}

button, #file-label {
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--purple-glow), #4a1d5c);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

button:hover:not(:disabled), #file-label:hover {
    background: linear-gradient(135deg, var(--signature-pink), var(--purple-glow));
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255, 105, 180, 0.3);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#file-label {
    display: inline-block;
}

#file-label input {
    display: none;
}

.divider {
    color: rgba(192, 192, 192, 0.4);
    font-size: 0.85rem;
}

#playback {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

#play-btn {
    min-width: 100px;
}

#volume {
    width: 120px;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(26, 26, 46, 0.8);
    border-radius: 3px;
    outline: none;
}

#volume::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: linear-gradient(135deg, var(--signature-pink), var(--signature-cyan));
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s;
}

#volume::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

#now-playing {
    margin-top: 15px;
    font-size: 0.85rem;
    color: var(--signature-cyan);
    opacity: 0;
    transition: opacity 0.3s;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#now-playing.visible {
    opacity: 0.8;
}

#signature {
    position: fixed;
    bottom: 30px;
    right: 40px;
    z-index: 10;
    text-align: right;
    font-family: 'Brush Script MT', cursive, sans-serif;
}

#signature .love {
    display: block;
    font-size: 1.8rem;
    background: linear-gradient(135deg, var(--signature-pink), var(--signature-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#signature .from {
    display: block;
    font-size: 1.2rem;
    color: var(--silver);
    opacity: 0.6;
    font-family: 'Segoe UI', sans-serif;
    font-style: italic;
}

/* Loading animation */
@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}