style.css

/* CSS Custom Properties */
:root {
    --color-bg: #0f0f1a;
    --color-bg-surface: rgba(255, 255, 255, 0.05);
    --color-bg-surface-hover: rgba(255, 255, 255, 0.08);
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-light: rgba(255, 255, 255, 0.06);
    --color-text: #e8e8f0;
    --color-text-muted: rgba(255, 255, 255, 0.5);
    --color-text-faint: rgba(255, 255, 255, 0.3);
    --color-primary: #6c63ff;
    --color-primary-hover: #7c74ff;
    --color-success: #4ade80;
    --color-warning: #fbbf24;
    /* Playback button hues, as RGB triples so the icon can use the solid
       colour and the fill a pale tint of the very same hue. */
    --btn-play-rgb: 34, 197, 94;
    --btn-add-rgb: 59, 130, 246;
    --btn-pause-rgb: 245, 158, 11;
    --btn-stop-rgb: 239, 68, 68;
    --color-danger: #f87171;
    --color-danger-hover: #ef4444;
    --color-gray: rgba(255, 255, 255, 0.2);
    --color-gray-hover: rgba(255, 255, 255, 0.3);
    --color-bg-gradient1: rgba(108, 99, 255, 0.08);
    --color-bg-gradient2: rgba(108, 99, 255, 0.05);
    --color-option-bg: #1a1a2e;
    --color-btn-text: #ffffff;
    --color-slider-track: rgba(255, 255, 255, 0.1);
    --color-slider-track-hover: rgba(255, 255, 255, 0.15);
    --color-progress-track: rgba(255, 255, 255, 0.06);
    --color-shadow: rgba(0, 0, 0, 0.2);
    --color-heading-gradient-start: #e8e8f0;
    --color-heading-gradient-end: #6c63ff;
}

@media (prefers-color-scheme: light) {
    :root {
        --color-bg: #f5f5f7;
        --color-bg-surface: rgba(0, 0, 0, 0.04);
        --color-bg-surface-hover: rgba(0, 0, 0, 0.07);
        --color-border: rgba(0, 0, 0, 0.12);
        --color-border-light: rgba(0, 0, 0, 0.06);
        --color-text: #1a1a2e;
        --color-text-muted: rgba(0, 0, 0, 0.5);
        --color-text-faint: rgba(0, 0, 0, 0.3);
        --color-primary: #5b52e6;
        --color-primary-hover: #4a42d4;
        --color-success: #22c55e;
        --color-warning: #d97706;
        --color-danger: #ef4444;
        --color-danger-hover: #dc2626;
        --color-gray: rgba(0, 0, 0, 0.1);
        --color-gray-hover: rgba(0, 0, 0, 0.15);
        --color-bg-gradient1: rgba(108, 99, 255, 0.06);
        --color-bg-gradient2: rgba(108, 99, 255, 0.03);
        --color-option-bg: #ffffff;
        --color-btn-text: #ffffff;
        --color-slider-track: rgba(0, 0, 0, 0.1);
        --color-slider-track-hover: rgba(0, 0, 0, 0.15);
        --color-progress-track: rgba(0, 0, 0, 0.06);
        --color-shadow: rgba(0, 0, 0, 0.08);
        --color-heading-gradient-start: #1a1a2e;
        --color-heading-gradient-end: #5b52e6;
    }
}

/* Global Styles */
:root {
    color-scheme: light dark;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--color-bg);
    background-image: radial-gradient(ellipse at 20% 50%, var(--color-bg-gradient1) 0%, transparent 50%),
                      radial-gradient(ellipse at 80% 20%, var(--color-bg-gradient2) 0%, transparent 50%);
    background-attachment: fixed;
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
    background: transparent;
}

.app-logo {
    display: block;
    width: 80px;
    height: 80px;
    margin: 0 auto 12px;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--color-text);
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--color-heading-gradient-start), var(--color-heading-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

/* Global Controls */
.controls {
    text-align: center;
    margin-bottom: 30px;
    display: flex;
    flex-direction: row;
    gap: 30px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.stop-all-btn {
    background: rgba(248, 113, 113, 0.15);
    color: var(--color-danger);
    border: 1px solid rgba(248, 113, 113, 0.3);
    padding: 12px 24px;
    font-size: 1rem;
    font-family: inherit;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.stop-all-btn:hover {
    background: rgba(248, 113, 113, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(248, 113, 113, 0.4);
    border-color: rgba(248, 113, 113, 0.5);
}

.stop-all-btn:active {
    transform: translateY(0);
}


/* Sound Pack Selector */
.sound-pack-selector {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--color-bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-border);
    padding: 15px 20px;
    border-radius: 12px;
}

.sound-pack-selector label {
    font-weight: 600;
    color: var(--color-text);
    white-space: nowrap;
}

.sound-pack-select {
    min-width: 150px;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-bg-surface);
    color: var(--color-text);
    font-size: 0.95rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
}

.sound-pack-select option {
    background: var(--color-option-bg);
    color: var(--color-text);
}

/* Pack Action Buttons */
.pack-actions {
    display: flex;
    gap: 4px;
}

.pack-action-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-bg-surface);
    color: var(--color-text-muted);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pack-action-btn:hover {
    background: var(--color-bg-surface-hover);
    color: var(--color-text);
    border-color: var(--color-primary);
}

.pack-action-btn-danger:hover {
    color: var(--color-danger);
    border-color: var(--color-danger);
}

.sound-pack-select:hover {
    border-color: var(--color-primary);
}

.sound-pack-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}

/* Global Volume Control */
.global-volume {
    display: flex;
    align-items: center;
    gap: 15px;
    background: var(--color-bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-border);
    padding: 15px 25px;
    border-radius: 12px;
}

.global-volume label {
    font-weight: 600;
    color: var(--color-text);
    min-width: 120px;
}

/* Search Bar */
.search-bar {
    max-width: 680px;
    margin: 0 auto 15px;
}

#search-input {
    width: 100%;
    padding: 10px 15px;
    font-size: 0.95rem;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: var(--color-bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--color-text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#search-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2), 0 0 20px rgba(108, 99, 255, 0.1);
}

#search-input::placeholder {
    color: var(--color-text-faint);
}

/* Side panels - now playing on the left, scenes on the right. Both are fixed
   overlays, never part of the layout flow, so showing or hiding one cannot
   reflow the page. max-width keeps them from meeting on narrow screens. */
.now-playing,
.scene-panel {
    position: fixed;
    z-index: 60;
    bottom: 16px;
    width: 180px;
    max-width: calc(50vw - 18px);
    max-height: 40vh;
    overflow-y: auto;
    margin: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 10px 12px;
    background: var(--color-bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 20px var(--color-shadow);
}

.now-playing {
    left: 12px;
    display: none;
}

.now-playing.visible {
    display: flex;
}

.scene-panel {
    right: 12px;
    display: flex;
}

/* Wide screens: once the gutters beside the 1000px container are wide enough
   (12 + 180 + margin), centre the panels in them instead of the bottom
   corners, where they sit clear of the content rather than over it. */
@media (min-width: 1420px) {
    .now-playing,
    .scene-panel {
        top: 50%;
        bottom: auto;
        transform: translateY(-50%);
        max-height: 80vh;
    }
}

/* Scenes */
.scene-panel-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--color-border);
}

.scene-panel-title {
    flex: 1;
    min-width: 0;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.scene-add-btn {
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-muted);
    font-size: 1rem;
    line-height: 1;
    padding: 0 2px;
    transition: color 0.2s ease;
}

.scene-add-btn:hover {
    color: var(--color-primary);
}

/* Launch controls for the lit scene - only on screen while one is lit */
.scene-lit-actions {
    display: flex;
    gap: 6px;
}

.scene-action-btn {
    flex: 1;
    min-width: 0;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font: inherit;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 5px 4px;
    white-space: nowrap;
    transition: background 0.2s ease;
}

.scene-action-play {
    background: rgba(var(--btn-play-rgb), 0.16);
    color: rgb(var(--btn-play-rgb));
}

.scene-action-play:hover {
    background: rgba(var(--btn-play-rgb), 0.3);
}

.scene-action-fade {
    background: rgba(var(--btn-add-rgb), 0.16);
    color: rgb(var(--btn-add-rgb));
}

.scene-action-fade:hover {
    background: rgba(var(--btn-add-rgb), 0.3);
}

.scene-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.scene-empty {
    font-size: 0.7rem;
    line-height: 1.4;
    color: var(--color-text-faint);
}

.scene-pill {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 6px 4px 4px;
    background: var(--color-bg-surface-hover);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--color-text);
}

.scene-pill.lit {
    background: rgba(var(--btn-pause-rgb), 0.12);
    border-color: var(--color-warning);
}

.scene-pill.active {
    background: rgba(var(--btn-play-rgb), 0.12);
    border-color: var(--color-success);
}

/* Lit scenes are the queue, and the queue is reorderable */
.scene-pill.lit {
    cursor: grab;
}

.scene-pill.lit:active {
    cursor: grabbing;
}

.scene-pill.dragging {
    opacity: 0.4;
}

.scene-pill.drop-before {
    box-shadow: 0 -2px 0 var(--color-warning);
}

.scene-pill.drop-after {
    box-shadow: 0 2px 0 var(--color-warning);
}

/* The scene currently collecting tracks */
.scene-pill.editing {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary);
}

/* The flame is colour emoji, so lit/unlit is carried by saturation */
.scene-flame {
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.85rem;
    line-height: 1;
    padding: 0 2px;
    filter: grayscale(1);
    opacity: 0.4;
    transition: filter 0.2s ease, opacity 0.2s ease;
}

.scene-flame:hover {
    filter: none;
    opacity: 0.8;
}

.scene-pill.lit .scene-flame {
    filter: none;
    opacity: 1;
}

.scene-name {
    flex: 1;
    min-width: 0;
    background: none;
    border: none;
    cursor: pointer;
    font: inherit;
    color: inherit;
    text-align: left;
    padding: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: color 0.2s ease;
}

.scene-name:hover {
    color: var(--color-primary);
}

/* Track list of the selected scene, indented under its pill */
.scene-tracks {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin: -2px 0 2px 12px;
    padding-left: 8px;
    border-left: 1px solid var(--color-primary);
}

.scene-tracks-empty {
    font-size: 0.65rem;
    line-height: 1.35;
    color: var(--color-text-faint);
}

.scene-track {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.scene-track-name {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.scene-track.missing .scene-track-name {
    color: var(--color-danger);
    text-decoration: line-through;
}

.scene-track-remove {
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-faint);
    font-size: 0.8rem;
    line-height: 1;
    padding: 0 2px;
    transition: color 0.2s ease;
}

.scene-track-remove:hover {
    color: var(--color-danger);
}

.scene-pill-btn {
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.7rem;
    line-height: 1;
    padding: 0 2px;
    opacity: 0.75;
    transition: opacity 0.2s ease;
}

.scene-pill-btn:hover {
    opacity: 1;
}

.scene-pill-play {
    color: rgb(var(--btn-play-rgb));
}

.scene-pill-fade {
    color: rgb(var(--btn-add-rgb));
}

.scene-delete {
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-faint);
    font-size: 0.9rem;
    line-height: 1;
    padding: 0 2px;
    transition: color 0.2s ease;
}

.scene-delete:hover {
    color: var(--color-danger);
}

.now-playing-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: var(--color-bg-surface-hover);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--color-text);
}

.now-playing-pill.playing {
    background: rgba(74, 222, 128, 0.15);
    border-color: var(--color-success);
    color: var(--color-success);
    animation: pillGlow 2s infinite ease-in-out;
}

.now-playing-pill.paused {
    background: rgba(251, 191, 36, 0.15);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.now-playing-name {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.now-playing-toggle,
.now-playing-stop {
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: inherit;
    opacity: 0.7;
    padding: 0 2px;
    line-height: 1;
    transition: opacity 0.2s ease, color 0.2s ease;
}

.now-playing-toggle {
    font-size: 0.75rem;
}

.now-playing-toggle:hover {
    opacity: 1;
}

.now-playing-stop:hover {
    opacity: 1;
    color: var(--color-danger);
}

/* Sound List - Grid Layout */
.sound-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
    margin-top: 10px;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

/* Sound Group Styles */
.sound-group {
    grid-column: 1 / -1;
    margin-bottom: 20px;
}

.group-header {
    margin-bottom: 12px;
    padding: 8px 12px;
    background: var(--color-bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-border-light);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.group-header:hover {
    background: var(--color-bg-surface-hover);
}

.group-header-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.group-chevron {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    transition: transform 0.2s ease;
    min-width: 16px;
}

.sound-group.collapsed .group-chevron {
    transform: rotate(0deg);
}

.sound-group:not(.collapsed) .group-chevron {
    transform: rotate(90deg);
}

.group-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: -0.3px;
    margin: 0;
    flex: 1;
}

.group-sounds {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
    padding: 0;
    transition: all 0.3s ease;
    overflow: hidden;
}

.sound-group.collapsed .group-sounds {
    display: none;
}

/* Session Group */
.session-group {
    border: 1px solid rgba(108, 99, 255, 0.2);
    border-radius: 12px;
    padding: 8px;
    background: rgba(108, 99, 255, 0.03);
}

.session-header {
    border-color: rgba(108, 99, 255, 0.2);
}

.session-header .group-name {
    color: var(--color-primary-hover);
}

.clear-session-btn {
    background: rgba(248, 113, 113, 0.12);
    color: var(--color-danger);
    border: 1px solid rgba(248, 113, 113, 0.25);
    padding: 4px 12px;
    font-size: 0.75rem;
    font-family: inherit;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.clear-session-btn:hover {
    background: rgba(248, 113, 113, 0.25);
    box-shadow: 0 0 12px rgba(248, 113, 113, 0.2);
}

/* Session Star Button */
.session-star-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 2px 4px;
    line-height: 1;
    color: var(--color-text-faint);
    transition: all 0.2s ease;
    border-radius: 4px;
    flex-shrink: 0;
}

.session-star-btn:hover {
    color: var(--color-primary);
    transform: scale(1.2);
}

.session-star-btn.active {
    color: var(--color-primary);
}

/* Sound Tiles */
.sound-tile {
    background: var(--color-bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 8px;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.sound-tile:hover {
    background: var(--color-bg-surface-hover);
    box-shadow: 0 8px 32px rgba(108, 99, 255, 0.15);
    border-color: rgba(108, 99, 255, 0.3);
}

/* Group Action Buttons */
.group-actions {
    display: flex;
    gap: 4px;
    margin-left: auto;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.group-header:hover .group-actions {
    opacity: 1;
}

.group-action-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-bg-surface);
    color: var(--color-text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.group-action-btn:hover {
    background: var(--color-bg-surface-hover);
    color: var(--color-text);
    border-color: var(--color-primary);
}

.group-action-btn-danger:hover {
    color: var(--color-danger);
    border-color: var(--color-danger);
}

/* Tile Top Icons */
.tile-top-icons {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

/* Tile Name Row */
.tile-name-row {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

/* Tile Header */
.tile-header {
    width: 100%;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    flex-shrink: 0;
}

.tile-actions {
    display: flex;
    align-items: center;
    gap: 2px;
}

.tile-action-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.75rem;
    padding: 2px 4px;
    line-height: 1;
    color: var(--color-text-faint);
    transition: all 0.2s ease;
    border-radius: 4px;
}

.tile-delete-btn {
    font-size: 0.9rem;
    /* the trash glyph renders as colour emoji, so `color` cannot tint it:
       it sits at full strength and hover adds a red wash behind it */
    opacity: 1;
}

.tile-delete-btn:hover {
    background: rgba(var(--btn-stop-rgb), 0.18);
    filter: brightness(1.15);
}

/* Only on screen while a scene is selected in the panel */
.tile-scene-btn {
    display: none;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

body.scene-editing .tile-scene-btn {
    display: inline-block;
}

.tile-scene-btn:hover {
    background: rgba(108, 99, 255, 0.18);
    color: var(--color-primary);
}

.tile-scene-btn.active {
    color: rgb(var(--btn-play-rgb));
}

.tile-move-btn {
    font-size: 0.9rem;
}

.tile-move-btn:hover {
    background: rgba(108, 99, 255, 0.18);
    filter: brightness(1.15);
}

/* Move-to-group menu - lives on the body, since .sound-tile clips overflow */
.tile-move-menu {
    position: fixed;
    z-index: 1500;
    min-width: 160px;
    max-width: 240px;
    max-height: 60vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    padding: 4px;
    background: var(--color-option-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    box-shadow: 0 8px 24px var(--color-shadow);
}

.tile-move-item {
    background: none;
    border: none;
    cursor: pointer;
    font: inherit;
    font-size: 0.8rem;
    text-align: left;
    color: var(--color-text);
    padding: 6px 10px;
    border-radius: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: background 0.15s ease, color 0.15s ease;
}

.tile-move-item:hover {
    background: var(--color-bg-surface-hover);
    color: var(--color-primary);
}

.tile-move-item.current {
    color: var(--color-text-faint);
    cursor: default;
}

.sound-name {
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--color-text);
    margin: 0;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: left;
    flex: 1;
    min-width: 0;
}

.sound-name:hover {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* Tile Controls */
.tile-controls {
    /* .sound-tile is a column flex with align-items:center, so this must
       stretch explicitly or it shrinks to the buttons' content width. */
    align-self: stretch;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Cancel .sound-tile's 8px padding so the buttons meet its edges */
    margin: 8px -8px 0;
}

.playback-controls {
    display: flex;
    width: 100%;
    gap: 0;
}

/* Control Buttons - the two visible ones split the tile width evenly */
.control-btn {
    flex: 1;
    min-width: 0;
    height: 36px;
    border: none;
    border-radius: 0;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgb(var(--btn-rgb));
    background: rgba(var(--btn-rgb), 0.16);
}

.control-btn:hover {
    background: rgba(var(--btn-rgb), 0.3);
}

/* Playback Buttons - one hue per action */
.play-exclusive-btn {
    --btn-rgb: var(--btn-play-rgb);
}

.play-additive-btn {
    --btn-rgb: var(--btn-add-rgb);
}

.pause-btn {
    --btn-rgb: var(--btn-pause-rgb);
}

.stop-btn {
    --btn-rgb: var(--btn-stop-rgb);
}

/* Hidden Buttons (play/add and pause/stop are mutually exclusive) */
.control-btn[hidden] {
    display: none;
}

/* Loop Button */
.loop-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 2px 4px;
    line-height: 1;
    color: var(--color-text-faint);
    transition: all 0.2s ease;
    border-radius: 4px;
    flex-shrink: 0;
}

.loop-btn:hover {
    color: var(--color-primary);
    transform: scale(1.2);
}

.loop-btn.active {
    color: var(--color-primary);
}

/* Volume Controls */
.volume-control {
    margin-top: 8px;
}

.volume-icon {
    font-size: 1.1rem;
    color: var(--color-text-faint);
    line-height: 1;
    flex-shrink: 0;
}

.volume-slider-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.volume-slider {
    width: 110px;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--color-slider-track);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
    transition: background 0.2s ease;
}

.volume-slider:hover {
    background: var(--color-slider-track-hover);
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 0 10px rgba(108, 99, 255, 0.4);
}

.volume-slider::-webkit-slider-thumb:hover {
    background: var(--color-primary-hover);
    transform: scale(1.15);
    box-shadow: 0 0 16px rgba(108, 99, 255, 0.6);
}

.volume-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    box-shadow: 0 0 10px rgba(108, 99, 255, 0.4);
}

.volume-slider::-moz-range-thumb:hover {
    background: var(--color-primary-hover);
    transform: scale(1.15);
    box-shadow: 0 0 16px rgba(108, 99, 255, 0.6);
}

/* Tile Status Colors */
.sound-tile.tile-loading {
    background: var(--color-bg-surface);
    border-color: var(--color-border);
}

.sound-tile.tile-error {
    background: rgba(248, 113, 113, 0.1);
    border-color: rgba(248, 113, 113, 0.3);
}

.sound-tile.tile-paused {
    background: rgba(251, 191, 36, 0.08);
    border-color: rgba(251, 191, 36, 0.25);
}

/* Library Modal */
.library-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.library-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.library-modal-content {
    position: relative;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.library-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
}

.library-modal-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
}

.library-modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    transition: color 0.2s ease;
}

.library-modal-close:hover {
    color: var(--color-danger);
}

.library-modal-search {
    padding: 12px 20px;
    border-bottom: 1px solid var(--color-border-light);
}

.library-modal-search input {
    width: 100%;
    padding: 8px 12px;
    font-size: 0.9rem;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-bg-surface);
    color: var(--color-text);
    outline: none;
    transition: border-color 0.2s ease;
}

.library-modal-search input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}

.library-track-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

.library-track-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    transition: background 0.15s ease;
}

.library-track-item:hover {
    background: var(--color-bg-surface-hover);
}

.library-track-type {
    font-size: 0.6rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    flex-shrink: 0;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.library-track-type-file {
    background: rgba(108, 99, 255, 0.15);
    color: var(--color-primary-hover);
}

.library-track-type-yt {
    background: rgba(255, 68, 68, 0.2);
    color: #ff4444;
}

.library-track-name {
    flex: 1;
    min-width: 0;
    font-size: 0.9rem;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.library-track-refs {
    font-size: 0.75rem;
    color: var(--color-text-faint);
    white-space: nowrap;
    flex-shrink: 0;
}

.library-track-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.library-track-action-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.8rem;
    padding: 4px 6px;
    color: var(--color-text-faint);
    border-radius: 4px;
    transition: all 0.2s ease;
}

.library-track-action-btn:hover {
    color: var(--color-text);
    background: var(--color-bg-surface);
}

.library-track-action-btn.library-add-to-pack-btn {
    font-size: 1rem;
    font-weight: 600;
}

.library-track-action-btn.library-add-to-pack-btn:hover {
    color: var(--color-primary);
}

.library-track-action-btn.library-delete-btn:hover {
    color: var(--color-danger);
}

.library-modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--color-border-light);
    text-align: center;
}

.library-track-count {
    font-size: 0.8rem;
    color: var(--color-text-faint);
}

.library-empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* Reset Section */
.reset-section {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

.reset-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 12px;
}

.reset-btn {
    background: rgba(248, 113, 113, 0.1);
    color: var(--color-danger);
    border: 1px solid rgba(248, 113, 113, 0.3);
    padding: 10px 20px;
    font-size: 0.9rem;
    font-family: inherit;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 0 0 auto;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.reset-btn:hover {
    background: rgba(248, 113, 113, 0.2);
    box-shadow: 0 0 16px rgba(248, 113, 113, 0.2);
}

.reset-btn:active {
    transform: translateY(1px);
}

.export-btn {
    background: rgba(108, 99, 255, 0.1);
    color: var(--color-primary-hover);
    border: 1px solid rgba(108, 99, 255, 0.3);
    padding: 10px 20px;
    font-size: 0.9rem;
    font-family: inherit;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 0 0 auto;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.export-btn:hover {
    background: rgba(108, 99, 255, 0.2);
    box-shadow: 0 0 16px rgba(108, 99, 255, 0.2);
}

.export-btn:active {
    transform: translateY(1px);
}

.reset-description {
    color: var(--color-text-faint);
    font-size: 0.8rem;
    margin: 0;
    line-height: 1.4;
}

.storage-usage {
    color: var(--color-text-faint);
    font-size: 0.7rem;
    margin: 8px 0 0 0;
    opacity: 0.6;
}

.keyboard-shortcut-info {
    color: var(--color-text-muted);
    font-size: 0.8rem;
    margin: 8px 0 0 0;
    line-height: 1.4;
    font-style: italic;
}

.keyboard-shortcut-info kbd {
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 2px 6px;
    font-family: 'Inter', monospace;
    font-size: 0.85em;
    font-weight: 600;
    color: var(--color-text);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* Add Bar (bottom of sound list) */
.add-bar {
    grid-column: 1 / -1;
    display: flex;
    gap: 10px;
    justify-content: center;
    padding: 15px 0;
}

.add-btn {
    background: var(--color-bg-surface);
    border: 1px dashed var(--color-border);
    border-radius: 12px;
    padding: 10px 20px;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
}

.add-btn:hover {
    background: var(--color-bg-surface-hover);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.add-btn-youtube:hover {
    border-color: #ff4444;
    color: #ff4444;
}

/* YouTube Tiles */
.sound-tile.youtube-sound {
    border-color: rgba(255, 68, 68, 0.2);
}

.sound-tile.youtube-sound:hover {
    border-color: rgba(255, 68, 68, 0.4);
    box-shadow: 0 8px 32px rgba(255, 68, 68, 0.15);
}

.sound-tile.youtube-sound.playing {
    animation: youtubeGlow 2s infinite ease-in-out;
}

@keyframes youtubeGlow {
    0% { border-color: rgba(255, 68, 68, 0.3); box-shadow: 0 0 8px rgba(255, 68, 68, 0.1); }
    50% { border-color: rgba(255, 68, 68, 0.6); box-shadow: 0 0 20px rgba(255, 68, 68, 0.3); }
    100% { border-color: rgba(255, 68, 68, 0.3); box-shadow: 0 0 8px rgba(255, 68, 68, 0.1); }
}

.youtube-badge {
    background: rgba(255, 68, 68, 0.2);
    color: #ff4444;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 4px;
    flex-shrink: 0;
    letter-spacing: 0.5px;
}

.group-action-btn-youtube {
    font-size: 0.6rem;
    font-weight: 700;
    color: #ff4444;
}

.group-action-btn-youtube:hover {
    color: #ff4444 !important;
    border-color: #ff4444 !important;
    background: rgba(255, 68, 68, 0.1);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    max-width: 680px;
    margin: 0 auto;
}

.empty-state p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    margin: 8px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    header h1 {
        font-size: 2rem;
    }

    .app-logo {
        width: 60px;
        height: 60px;
        margin-bottom: 8px;
    }

    .controls {
        gap: 15px;
        flex-direction: column;
    }

    .sound-pack-selector {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .sound-pack-selector label {
        font-size: 0.9rem;
    }

    .sound-pack-select {
        min-width: auto;
        width: 100%;
        max-width: 250px;
    }

    .pack-actions {
        justify-content: center;
    }

    .add-bar {
        flex-direction: column;
        align-items: center;
    }

    .group-actions {
        opacity: 1;
    }

    .sound-tile .tile-action-btn {
        opacity: 1;
    }

    .global-volume {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .global-volume label {
        min-width: auto;
    }

    .sound-list {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .sound-tile {
        padding: 8px;
    }

    .sound-name {
        text-align: left;
    }

    .tile-controls {
        flex-direction: column;
        gap: 8px;
    }

    .reset-buttons {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }

    .reset-btn,
    .export-btn {
        width: 200px;
        max-width: 90%;
    }
}

/* Medium screens - 2 columns */
@media (min-width: 769px) and (max-width: 1024px) {
    .sound-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .group-sounds {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

/* Notifications */
.notification {
    position: fixed;
    right: 20px;
    padding: 12px 20px;
    color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px var(--color-shadow);
    z-index: 1000;
    font-size: 14px;
    max-width: 300px;
    word-wrap: break-word;
    background: var(--color-success);
}

.notification-error {
    background: var(--color-danger);
}

@keyframes purpleGlow {
    0% {
        border-color: rgba(108, 99, 255, 0.3);
        box-shadow: 0 0 8px rgba(108, 99, 255, 0.1);
    }

    50% {
        border-color: rgba(108, 99, 255, 0.6);
        box-shadow: 0 0 20px rgba(108, 99, 255, 0.3);
    }

    100% {
        border-color: rgba(108, 99, 255, 0.3);
        box-shadow: 0 0 8px rgba(108, 99, 255, 0.1);
    }
}

@keyframes pillGlow {
    0% {
        box-shadow: 0 0 0 0 rgba(74, 222, 128, 0);
    }

    50% {
        box-shadow: 0 0 8px 0 rgba(74, 222, 128, 0.35);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(74, 222, 128, 0);
    }
}


.sound-tile.playing {
    animation: purpleGlow 2s infinite ease-in-out;
}

/* Progress Control */
.progress-control {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 8px;
    background: transparent;
    cursor: pointer;
    z-index: 10;
}

.progress-bar {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--color-progress-track);
    border-radius: 0 0 12px 12px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-hover));
    width: 0%;
    transition: width 0.1s ease;
    position: relative;
}

.progress-handle {
    position: absolute;
    top: 50%;
    left: -6px;
    width: 12px;
    height: 12px;
    background: var(--color-primary);
    border: 2px solid var(--color-text);
    border-radius: 50%;
    transform: translateY(-50%);
    cursor: grab;
    opacity: 0;
    transition: opacity 0.2s ease;
    box-shadow: 0 0 8px rgba(108, 99, 255, 0.4);
    z-index: 20;
}

.progress-handle:active {
    cursor: grabbing;
}

.progress-control:hover .progress-handle {
    opacity: 1;
    transform: translateY(-50%) scale(1.3);
    box-shadow: 0 0 12px rgba(108, 99, 255, 0.6);
}

.sound-tile:hover .progress-handle {
    opacity: 1;
    transform: translateY(-50%) scale(1.3);
}

.progress-control:hover {
    height: 12px;
}

.progress-control:hover .progress-bar {
    height: 12px;
    transition: height 0.2s ease;
}

/* Progress bar when dragging */
.progress-control.dragging {
    height: 16px;
}

.progress-control.dragging .progress-handle {
    opacity: 1;
    transform: translateY(-50%) scale(1.5);
}

.progress-control.dragging .progress-bar {
    height: 16px;
}