/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color palette */
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-tertiary: #252525;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-black: #000000;
    --accent-primary: #1DB954;  /* Spotify-inspired green */
    --accent-secondary: #535353;
    --error: #e74c3c;
    --button-hover: #333333;
    
    /* Cue point colors */
    --cue-colors: #FF5722, #FFC107, #4CAF50, #2196F3, #9C27B0, #F44336;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

body {
    font-family: 'Geist', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    padding: var(--space-md);
    min-height: 100vh;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

header {
    text-align: center;
    padding: var(--space-md) 0;
/*    border-bottom: 1px solid var(--accent-secondary);*/
}

h1 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

h2 {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

section {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    margin: 10px 5px;
    text-align: center;
    text-decoration: none;
    border-radius: 5px;
    font-size: 1em;
}
.btn-primary {
    background-color: #50fa7b;
    color: black;
}
.btn-secondary {
    background-color: transparent;
    border: 1px solid white;
    color: white;
}

/* File upload section */
.file-upload-section {
    display: flex;
    justify-content: center;
}

.upload-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.upload-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background-color: var(--accent-primary);
    color: var(--text-black);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color 0.2s;
}

.upload-btn:hover {
    background-color: #1aa34a;
}

.file-name {
    color: var(--text-primary);
    font-size: 0.9rem;
}

/* Waveform section */
.waveform-container {
    position: relative;
    width: 100%;
    height: 200px;
}

#waveform {
    width: 100%;
    height: 100%;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    cursor: crosshair;
}

.empty-state {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--text-secondary);
    pointer-events: none;
}


/* Controls section */
.controls-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.transport-controls, .zoom-controls {
    display: flex;
    gap: var(--space-md);
}

.control-btn {
    background-color: var(--accent-primary);
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.2s;
}

.control-btn:hover:not(:disabled) {
    background-color: #1aa34a;
}

.control-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.play-btn:hover:not(:disabled) {
    background-color: #1aa34a;
}

.play-btn.pause {
    background-color: var(--accent-primary);
}

/* Cue points section */
.cue-instructions {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: var(--space-md);
    padding: var(--space-sm);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.cue-buttons-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    min-height: 40px;
}

.cue-button {
    padding: var(--space-sm) var(--space-md);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    transition: transform 0.1s;
}

.cue-button:hover {
    transform: translateY(-2px);
}

.no-cues-message {
    color: var(--text-secondary);
    font-style: italic;
}

/* Icons */
.icon {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.icon-large {
    width: 48px;
    height: 48px;
    fill: var(--text-secondary);
    opacity: 0.5;
}

/* Error state */
.error-message {
    color: var(--error);
    padding: var(--space-sm);
    background-color: rgba(231, 76, 60, 0.1);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    margin-top: var(--space-sm);
}


/* Loading spinner */
.loading-spinner {
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid var(--accent-primary);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    margin-bottom: var(--space-sm);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.file-loaded {
    color: var(--text-primary);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .controls-section {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .waveform-container {
        height: 150px;
    }
}

.key-badge {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-width: 18px;
    height: 18px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 3px;
    font-size: 0.7rem;
    font-weight: bold;
    margin-right: var(--space-xs);
    padding: 0 2px;
}

.key-triggered {
    transform: scale(1.1);
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.5);
}

/* Add an instruction for keyboard shortcuts */
.keyboard-instructions {
    margin-top: var(--space-xs);
    color: var(--text-secondary);
    font-size: 0.85rem;
}