/* ==========================================================================
   VibeAudio Component Foundation — Stage A
   Tactile Editorial Listening Sanctuary
   ========================================================================== */

/* --- 1. BOOK CARDS (SANCTUARY SHELF) --- */
.book-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--color-surface-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 0;
    overflow: hidden;
    cursor: pointer;
    text-align: left;
    box-shadow: var(--shadow-subtle);
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    user-select: none;
    -webkit-user-select: none;
}

.book-card:hover {
    transform: translateY(-3px);
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-card);
    background: var(--color-surface-2);
}

.book-card:active {
    transform: translateY(-1px) scale(0.99);
}

.book-card.has-progress {
    border-color: var(--color-border-strong);
}

.book-card.is-finished {
    border-color: rgba(229, 169, 60, 0.18);
}

/* Book Cover Media with authentic 2:3 aspect ratio */
.book-card-media {
    position: relative;
    width: 100%;
    aspect-ratio: 2 / 3;
    overflow: hidden;
    background: var(--color-surface-2);
}

.book-card-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(12, 13, 17, 0) 60%, rgba(12, 13, 17, 0.55) 100%);
    pointer-events: none;
}

.book-card img,
.book-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 0;
    margin: 0;
    box-shadow: none;
    transition: transform var(--transition-smooth);
}

.book-card:hover img,
.book-card:hover .book-card-media img {
    transform: scale(1.03);
}

/* Card Content / Typography */
.card-content {
    padding: 12px 14px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex-grow: 1;
}

.card-kicker-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    margin-bottom: 2px;
}

.card-kicker {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.book-card h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.015em;
    color: var(--color-text-primary);
    margin: 0;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    text-overflow: ellipsis;
}

.card-author {
    font-size: 0.82rem;
    color: var(--color-text-dim);
    margin: 0;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Card Progress Block */
.card-progress-block {
    margin-top: 8px;
}

.card-progress-track {
    height: 4px;
    border-radius: var(--radius-pill);
    background: rgba(245, 246, 250, 0.08);
    overflow: hidden;
}

.card-progress-fill {
    height: 100%;
    border-radius: inherit;
    background: var(--color-accent);
}

.card-progress-text {
    margin-top: 6px;
    color: var(--color-text-dim);
    font-size: 0.74rem;
    font-variant-numeric: tabular-nums;
    line-height: 1.3;
}

/* --- 2. BADGES & STATUS CHIPS --- */
.book-badge,
.card-activity-badge,
.card-offline-badge {
    position: absolute;
    z-index: 2;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: var(--radius-pill);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    padding: 3px 8px;
    line-height: 1.3;
}

.book-badge {
    top: 8px;
    right: 8px;
    background: rgba(12, 13, 17, 0.78);
    border: 1px solid var(--color-border);
    color: var(--color-text-soft);
}

.card-activity-badge {
    top: 8px;
    left: 8px;
    border: 1px solid var(--color-border);
    background: rgba(12, 13, 17, 0.78);
    color: var(--color-text-primary);
}

.card-activity-badge.continue {
    background: rgba(229, 169, 60, 0.18);
    border-color: var(--color-accent-border);
    color: var(--color-accent);
}

.card-activity-badge.finished {
    background: rgba(78, 186, 135, 0.16);
    border-color: var(--color-success-border);
    color: var(--color-success);
}

.card-offline-badge {
    bottom: 8px;
    left: 8px;
    border: 1px solid var(--color-border);
    background: rgba(12, 13, 17, 0.82);
    color: var(--color-text-soft);
}

.card-offline-badge[data-status="downloaded"] {
    background: rgba(78, 186, 135, 0.18);
    border-color: var(--color-success-border);
    color: var(--color-success);
}

.card-offline-badge[data-status="queued"],
.card-offline-badge[data-status="downloading"] {
    background: rgba(229, 169, 60, 0.18);
    border-color: var(--color-accent-border);
    color: var(--color-accent);
}

.card-offline-badge[data-status="update_available"] {
    background: rgba(229, 169, 60, 0.18);
    border-color: var(--color-warning-border);
    color: var(--color-warning);
}

.card-offline-badge[data-status="failed"] {
    background: rgba(224, 93, 93, 0.18);
    border-color: var(--color-danger-border);
    color: var(--color-danger);
}

/* Source Badges */
.source-type-badge {
    font-size: 0.64rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.source-type-badge.offline-badge {
    background: var(--color-success-soft);
    color: var(--color-success);
    border: 1px solid var(--color-success-border);
}

.source-type-badge.audio-badge {
    background: rgba(245, 246, 250, 0.06);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.source-type-badge.yt-badge {
    background: rgba(229, 169, 60, 0.1);
    color: var(--color-accent);
    border: 1px solid var(--color-accent-border);
}

/* Mood & Category Tags */
.mood-tags {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-top: 6px;
}

.mood-tag {
    font-size: 0.68rem;
    background: var(--color-surface-2);
    padding: 2px 7px;
    border-radius: var(--radius-sm);
    color: var(--color-text-dim);
    border: 1px solid var(--color-border);
}

/* --- 3. CATEGORY FILTERS --- */
.filter-container {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 4px 0 14px;
    margin-bottom: 20px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.filter-container::-webkit-scrollbar {
    display: none;
}

.filter-btn {
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--color-border);
    background: var(--color-surface-1);
    color: var(--color-text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    cursor: pointer;
    white-space: nowrap;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
    min-height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.filter-btn:hover {
    background: var(--color-surface-2);
    color: var(--color-text-primary);
    border-color: var(--color-border-strong);
    transform: translateY(-1px);
}

.filter-btn.active {
    background: var(--color-accent);
    color: #0C0D11;
    border-color: var(--color-accent);
    font-weight: 600;
    box-shadow: var(--shadow-subtle);
}

.filter-btn:active {
    transform: scale(0.96);
}

/* --- 4. ONE-TAP RESUME HERO (HOME) --- */
.home-resume-hero {
    margin-bottom: 28px;
}

.resume-hero-card {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 22px;
    align-items: center;
    background: var(--color-surface-1);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-panel);
    padding: 20px;
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.resume-hero-card::before {
    content: "";
    position: absolute;
    top: -40%;
    right: -10%;
    width: 50%;
    height: 120%;
    background: radial-gradient(circle, rgba(229, 169, 60, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.resume-hero-art-wrap {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 2 / 3;
    box-shadow: var(--shadow-card);
    background: var(--color-surface-2);
}

.resume-hero-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.resume-offline-tag {
    position: absolute;
    bottom: 6px;
    left: 6px;
    right: 6px;
    background: rgba(12, 13, 17, 0.88);
    border: 1px solid var(--color-success-border);
    color: var(--color-success);
    font-size: 0.68rem;
    font-weight: 700;
    padding: 3px 6px;
    border-radius: var(--radius-sm);
    text-align: center;
    backdrop-filter: blur(6px);
}

.resume-hero-content {
    display: flex;
    flex-direction: column;
    gap: 6px;
    z-index: 1;
}

.resume-hero-badges {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.personalized-kicker {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-accent);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.spotlight-sync-pill {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--color-border);
    background: var(--color-surface-2);
    color: var(--color-text-dim);
    font-size: 0.68rem;
    font-weight: 600;
}

.spotlight-sync-pill[data-status="synced"] {
    border-color: var(--color-success-border);
    color: var(--color-success);
    background: var(--color-success-soft);
}

.spotlight-sync-pill[data-status="pending"] {
    border-color: var(--color-warning-border);
    color: var(--color-warning);
    background: var(--color-warning-soft);
}

.spotlight-sync-pill[data-status="offline"] {
    border-color: var(--color-border-strong);
    color: var(--color-text-soft);
    background: var(--color-surface-2);
}

.resume-hero-title {
    font-family: var(--font-display);
    font-size: clamp(1.3rem, 2.2vw, 1.85rem);
    font-weight: 600;
    line-height: 1.15;
    color: var(--color-text-primary);
    margin: 0;
}

.resume-hero-author {
    color: var(--color-text-secondary);
    font-size: 0.88rem;
    margin: 0;
}

.resume-hero-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 2px;
}

.resume-chapter-pill {
    background: var(--color-surface-2);
    color: var(--color-text-primary);
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    font-size: 0.78rem;
    font-weight: 600;
    border: 1px solid var(--color-border);
}

.resume-pct-label {
    color: var(--color-text-dim);
    font-size: 0.8rem;
    font-variant-numeric: tabular-nums;
}

.resume-track {
    margin: 4px 0 8px;
    height: 5px;
    background: rgba(245, 246, 250, 0.08);
    border-radius: var(--radius-pill);
    overflow: hidden;
}

.resume-track-fill {
    height: 100%;
    border-radius: inherit;
    background: var(--color-accent);
}

.resume-hero-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 4px;
}

.resume-main-btn {
    min-height: 44px;
    padding: 10px 22px;
    font-size: 0.92rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    border-radius: var(--radius-pill);
    background: var(--color-accent);
    color: #0C0D11;
    border: none;
    box-shadow: var(--shadow-subtle);
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.resume-main-btn:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
}

.resume-main-btn:active {
    transform: scale(0.97);
}

.resume-chapters-btn {
    min-height: 44px;
    padding: 10px 16px;
    font-size: 0.86rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-pill);
    background: var(--color-surface-2);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.resume-chapters-btn:hover {
    background: var(--color-surface-3);
    color: var(--color-text-primary);
}

/* --- 5. HORIZONTAL OFFLINE SHELF --- */
.home-shelf-section {
    margin-bottom: 28px;
}

.section-head-compact {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 14px;
}

.shelf-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 2px 0 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.shelf-title i {
    color: var(--color-success);
}

.home-horizontal-shelf {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 8px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border-strong) transparent;
}

.home-horizontal-shelf::-webkit-scrollbar {
    height: 4px;
}

.home-horizontal-shelf::-webkit-scrollbar-thumb {
    background: var(--color-border-strong);
    border-radius: var(--radius-pill);
}

.horizontal-shelf-card {
    flex: 0 0 150px;
    scroll-snap-align: start;
    background: var(--color-surface-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 10px;
    cursor: pointer;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.horizontal-shelf-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-border-strong);
    background: var(--color-surface-2);
}

.shelf-card-cover-wrap {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 8px;
    aspect-ratio: 2 / 3;
    background: var(--color-surface-2);
}

.shelf-card-cover-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.shelf-offline-badge {
    position: absolute;
    bottom: 4px;
    left: 4px;
    right: 4px;
    background: rgba(12, 13, 17, 0.88);
    border: 1px solid var(--color-success-border);
    color: var(--color-success);
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 4px;
    border-radius: 4px;
    text-align: center;
}

.shelf-card-info h4 {
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0 0 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.shelf-card-info p {
    font-size: 0.74rem;
    color: var(--color-text-dim);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* --- 6. INSIGHTS & STATS CARDS --- */
.library-insights {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.insight-card {
    padding: 16px 18px;
    border-radius: var(--radius-panel);
    border: 1px solid var(--color-border);
    background: var(--color-surface-1);
    box-shadow: var(--shadow-subtle);
}

.insight-card strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1.45rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--color-text-primary);
    font-variant-numeric: tabular-nums;
}

.insight-card span {
    color: var(--color-text-dim);
    font-size: 0.8rem;
    line-height: 1.3;
}

/* --- 7. HISTORY CARDS --- */
.history-card {
    background: var(--color-surface-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 14px 16px;
    cursor: pointer;
    transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
    box-shadow: var(--shadow-subtle);
}

.history-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-border-strong);
    background: var(--color-surface-2);
}

.history-layout {
    display: flex;
    align-items: center;
    gap: 14px;
}

.history-cover {
    width: 64px !important;
    height: 86px !important;
    aspect-ratio: 2 / 3;
    border-radius: var(--radius-sm);
    object-fit: cover;
    box-shadow: var(--shadow-subtle);
    background: var(--color-surface-2);
}

.history-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.history-info h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
    line-height: 1.2;
}

.chapter-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--color-accent);
    font-weight: 600;
}

.history-play-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    color: var(--color-accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.history-card:hover .history-play-btn {
    background: var(--color-accent);
    color: #0C0D11;
    transform: scale(1.05);
}

.mini-progress-track {
    height: 4px;
    border-radius: var(--radius-pill);
    background: rgba(245, 246, 250, 0.08);
    overflow: hidden;
    margin-top: 4px;
}

.mini-progress-fill {
    height: 100%;
    border-radius: inherit;
    background: var(--color-accent);
}

.progress-text {
    font-size: 0.74rem;
    color: var(--color-text-dim);
    font-variant-numeric: tabular-nums;
}

/* --- 8. POPOVER MENUS (SPEED & SLEEP) --- */
.popover-menu {
    position: absolute;
    bottom: 84px;
    background: var(--color-surface-2);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-panel);
    padding: 8px;
    box-shadow: var(--shadow-sheet);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 2500;
    display: grid;
    gap: 4px;
    min-width: 160px;
    animation: popUp 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes popUp {
    from {
        opacity: 0;
        transform: translateY(6px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.popover-menu.hidden {
    display: none;
}

.popover-title {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-dim);
    padding: 6px 10px 2px;
    font-weight: 700;
}

.popover-item-btn {
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    padding: 10px 14px;
    min-height: 44px;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.popover-item-btn:hover {
    background: var(--color-surface-3);
    color: var(--color-text-primary);
}

.popover-item-btn.active {
    background: var(--color-accent-soft);
    color: var(--color-accent);
    font-weight: 600;
}

/* --- 9. SCRUBBER & PROGRESS CONTROLS --- */
.progress-container input[type=range] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: rgba(245, 246, 250, 0.1);
    border-radius: var(--radius-pill);
    outline: none;
    padding: 16px 0;
    cursor: pointer;
    touch-action: none;
}

.progress-container input[type=range]::-webkit-slider-runnable-track {
    height: 4px;
    background: rgba(245, 246, 250, 0.1);
    border-radius: var(--radius-pill);
}

.progress-container input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    height: 14px;
    width: 14px;
    border-radius: 50%;
    background: var(--color-text-primary);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
    margin-top: -5px;
    transition: transform var(--transition-fast);
}

.progress-container input[type=range]:hover::-webkit-slider-thumb {
    transform: scale(1.2);
    background: var(--color-accent);
}

.progress-container input[type=range]::-moz-range-track {
    height: 4px;
    background: rgba(245, 246, 250, 0.1);
    border-radius: var(--radius-pill);
}

.progress-container input[type=range]::-moz-range-thumb {
    height: 14px;
    width: 14px;
    border-radius: 50%;
    background: var(--color-text-primary);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
    border: none;
}

/* --- RESPONSIVE ADJUSTMENTS --- */
@media (max-width: 768px) {
    .resume-hero-card {
        grid-template-columns: 1fr;
        gap: 14px;
        padding: 16px;
    }

    .resume-hero-art-wrap {
        max-width: 120px;
    }

    .library-insights {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .popover-menu {
        bottom: 110px;
        left: 50%;
        transform: translateX(-50%);
        min-width: 220px;
    }
}