/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');

:root {
    /* Dark Theme Palette based on Screenshot */
    --bg-dark: #121212;
    --bg-sidebar: #1a1a1a;
    --bg-card: #252525;
    --bg-card-hover: #303030;
    
    --accent-music: #00a8ff;   /* Bright Blue/Cyan for Music */
    --accent-music-dim: #0077b6;
    --accent-sfx: #cd84f1;     /* Purple/Pink for SFX */
    
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #707070;
    
    --border-color: #333333;
    --active-ring-color: #00d2ff; /* Cyan ring */
    
    --font-primary: 'Roboto', sans-serif;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden; /* Prevent body scroll, use internal scroll */
}

/* App Layout */
.app-layout {
    display: grid;
    grid-template-columns: 320px 1fr; /* Sidebar Width | Main Content */
    height: 100vh;
}

/* Sidebar */
.sidebar {
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 20px;
    gap: 20px;
    overflow-y: auto;
}

.brand h1 {
    font-size: 1.8rem;
    color: var(--text-primary);
    letter-spacing: 1px;
    text-align: center;
    margin-bottom: 10px;
    font-weight: 300;
}

/* Global Controls */
.global-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.global-controls button {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.global-controls button:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--text-secondary);
}

#stop-all-btn:hover {
    background-color: #e74c3c;
    border-color: #c0392b;
}

/* Playlist Section in Sidebar */
#playlist-section {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-height: 200px;
}

.playlist-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.playlist-header h2 {
    font-size: 1rem;
    color: var(--accent-music);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.playlist-controls button {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.1em;
    padding: 5px;
}

.playlist-controls button:hover {
    color: var(--text-primary);
}

.playlist-container {
    background-color: rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    flex-grow: 1;
    overflow-y: auto;
    padding: 10px;
}

.playlist-container.drag-over {
    border-color: var(--accent-music);
    background-color: rgba(0, 168, 255, 0.1);
}

.playlist-item {
    display: flex;
    align-items: center;
    padding: 8px;
    background-color: var(--bg-card);
    margin-bottom: 5px;
    border-radius: 4px;
    border-left: 3px solid transparent;
    cursor: pointer;
    font-size: 0.9em;
}

.playlist-item.active {
    background-color: #2a2a2a;
    border-left-color: var(--accent-music);
}

.playlist-item.playing .playlist-label {
    color: var(--accent-music);
    font-weight: bold;
}

.playlist-handle {
    color: var(--text-muted);
    margin-right: 8px;
    cursor: grab;
}

.playlist-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin: 0 8px;
    min-width: 0; /* Allow flex shrinking */
}

.playlist-label {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.9em;
}

.playlist-volume-slider {
    width: 100%;
}

.playlist-order-controls {
    display: flex;
    flex-direction: column;
    margin-right: 5px;
}

.playlist-remove-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
}

.playlist-remove-btn:hover {
    color: #e74c3c;
}

/* Trash Bin */
.trash-bin {
    margin-top: auto;
    padding: 15px;
    border: 2px dashed var(--border-color);
    border-radius: 6px;
    text-align: center;
    color: var(--text-muted);
    transition: all 0.2s;
}

.trash-bin.drag-over {
    border-color: #e74c3c;
    color: #e74c3c;
    background-color: rgba(231, 76, 60, 0.1);
}

/* Main Content */
.main-content {
    padding: 30px;
    overflow-y: auto;
    background: radial-gradient(circle at top right, #1f1f1f, #121212);
}

.sound-category-section {
    margin-bottom: 40px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.section-header h2 {
    margin-bottom: 0;
}

.new-theme-btn {
    padding: 6px 12px;
    font-size: 0.85rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    cursor: pointer;
}

.new-theme-btn:hover {
    background: rgba(255,255,255,0.08);
}

h2 {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

/* Categories Container Grid */
.categories-container {
    /* We will organize sounds in groups, usually <details> */
}

.category-group {
    margin-bottom: 20px;
    background-color: rgba(255,255,255,0.02);
    border-radius: 8px;
    padding: 10px;
}

.category-group summary {
    cursor: pointer;
    font-weight: bold;
    color: var(--text-secondary);
    margin-bottom: 10px;
    outline: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.category-name {
    flex: 1;
}

.delete-theme-btn {
    padding: 4px 8px;
    background: transparent;
    border: none;
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
}

.delete-theme-btn:hover {
    color: #e74c3c;
    background: rgba(231, 76, 60, 0.15);
}

.play-all-btn {
    display: none;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: normal;
}

.play-all-btn:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--accent-music);
}

.play-all-btn:active {
    transform: scale(0.98);
}

.play-all-btn i {
    font-size: 0.75rem;
}

/* Sound List Grid */
.sound-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 20px;
}

/* Circular Sound Item Style */
.sound-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 140px;
}

.sound-icon-wrapper {
    position: relative;
    width: 60px;
    height: 60px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: transform 0.2s;
}

.sound-icon-wrapper:hover {
    transform: scale(1.05);
}

.play-pause-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.2em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0; /* Reset padding */
}

/* Progress Ring SVG */
.progress-ring {
    position: absolute;
    top: 0;
    left: 0;
    transform: rotate(-90deg);
    pointer-events: none; /* Let clicks pass through to wrapper/btn */
}

.progress-ring-circle-bg {
    /* Background ring */
}

.progress-ring-circle {
    stroke-dasharray: 163.36; /* 2 * PI * 26 */
    stroke-dashoffset: 163.36; /* Start empty */
    transition: stroke-dashoffset 0.1s linear;
}

.delay-timer-circle {
    stroke-dasharray: 138.23; /* 2 * PI * 22 (for r=22) */
    stroke-dashoffset: 138.23; /* Start empty */
    transition: stroke-dashoffset 0.1s linear, opacity 0.3s ease;
    opacity: 0; /* Hidden by default */
    stroke: #ff6b6b; /* Red/orange color for delay timer */
}

/* Smaller delay timer for uncategorized items (r=19) */
.sound-item.uncategorized .delay-timer-circle {
    stroke-dasharray: 119.38; /* 2 * PI * 19 */
    stroke-dashoffset: 119.38;
}

/* Playing State */
.sound-item.playing .play-pause-btn {
    background-color: var(--bg-card-hover);
    color: var(--active-ring-color);
    box-shadow: 0 0 10px rgba(0, 210, 255, 0.3);
}

.sound-item.playing .sound-label {
    color: var(--active-ring-color);
}

/* Labels & Volume */
.sound-controls {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.sound-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    width: 100%;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.25;
    min-height: 2.5em;
}

.volume-slider {
    width: 80%;
    height: 4px;
    -webkit-appearance: none;
    background: #444;
    border-radius: 2px;
    outline: none;
    opacity: 0; /* Hidden until hover or playing */
    transition: opacity 0.2s;
}

.sound-item:hover .volume-slider,
.sound-item.playing .volume-slider {
    opacity: 1;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-secondary);
    cursor: pointer;
}

/* Randomize Control */
.randomize-control {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.randomize-control .fa-dice {
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: help;
}

.randomize-input {
    width: 60px;
    padding: 2px 4px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    color: var(--text-primary);
    font-size: 0.75rem;
    text-align: center;
}

.randomize-input:focus {
    outline: none;
    border-color: var(--accent-music);
}

.save-randomize-btn {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 2px 6px;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 0.75rem;
    transition: all 0.2s;
}

.save-randomize-btn:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--accent-music);
}

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

/* Uncategorized Specifics */
.uncategorized-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sound-item.uncategorized {
    flex-direction: row;
    width: 100%;
    background-color: var(--bg-card);
    padding: 10px;
    border-radius: 6px;
    align-items: center;
}

.sound-item.uncategorized .sound-icon-wrapper {
    width: 50px;
    height: 50px;
    margin-bottom: 0;
    margin-right: 15px;
}

.sound-item.uncategorized .play-pause-btn {
    width: 36px;
    height: 36px;
    font-size: 1em;
}

.uncategorized-details {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.categorize-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .app-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .playlist-container {
        max-height: 200px;
    }
}