/* Books: local library, reader, generator, and audio player */

.voice-selector-row,
.workspace-actions,
.generator-actions,
.chapter-generator-row,
.player-actions,
.storage-line,
.reader-toolbar {
    display: flex;
    gap: 8px;
    align-items: center;
}

.books-select,
.library-search,
.reader-search,
.chapter-selector,
.tts-instructions-input {
    width: 100%;
    padding: 10px;
    font-size: 0.95rem;
    border-radius: 8px;
    border: 1px solid rgba(74, 222, 128, 0.28);
    background: rgba(0, 0, 0, 0.34);
    color: #e8f5e9;
}

.books-select option,
.chapter-selector option {
    background: #1a3a2e;
    color: #e8f5e9;
}

.books-select:focus,
.library-search:focus,
.reader-search:focus,
.chapter-selector:focus,
.tts-instructions-input:focus {
    outline: none;
    border-color: rgba(74, 222, 128, 0.62);
}

.tts-instructions-input {
    min-height: 68px;
    resize: vertical;
    font-family: inherit;
}

.tts-instructions-input:disabled {
    opacity: 0.58;
}

/* Buttons come from the shared vocabulary (practice-controls.css):
   panel-action-btn, primary-btn, secondary-btn, step-field/step-btn.
   Only Books layout (grids, widths) is added below. */

.conversion-options-grid .step-field {
    margin-top: 8px;
}

.books-shell {
    display: grid;
    grid-template-columns: minmax(230px, 300px) minmax(0, 1fr);
    gap: 14px;
    align-items: start;
}

.books-shell.book-open {
    grid-template-columns: 1fr;
}

.books-shell.book-open .books-library-panel {
    display: none;
}

.books-library-panel,
.book-workspace,
.upload-card,
.generator-card,
.player-card,
.library-progress-summary,
.conversion-status-card,
.book-progress-card,
.reader-panel {
    background: rgba(0, 0, 0, 0.24);
    border: 1px solid rgba(74, 222, 128, 0.16);
    border-radius: 12px;
}

.books-library-panel {
    padding: 12px;
    position: sticky;
    top: calc(var(--site-header-height, 0px) + 8px);
    max-height: calc(100vh - var(--site-header-height, 0px) - 24px);
    overflow: auto;
}

.upload-card {
    padding: 12px;
    margin-bottom: 12px;
}

.upload-card > .primary-btn {
    width: 100%;
    margin-bottom: 8px;
}

.url-import-row {
    display: flex;
    gap: 6px;
    margin: 8px 0 4px;
}

.url-import-input {
    flex: 1;
    min-width: 0;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid rgba(74, 222, 128, 0.24);
    background: rgba(0, 0, 0, 0.3);
    color: #e8f5e9;
    font-size: 0.85rem;
}

.url-import-input:focus {
    outline: none;
    border-color: rgba(74, 222, 128, 0.55);
}

.url-import-overlay {
    position: fixed;
    top: var(--site-header-height, 0px);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.url-import-overlay-content {
    background: linear-gradient(145deg, #1a3a2e 0%, #0d2818 100%);
    border: 1px solid rgba(74, 222, 128, 0.3);
    border-radius: 16px;
    padding: 22px;
    max-width: 720px;
    width: 100%;
    max-height: 88vh;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.url-import-header h2 {
    margin: 0 0 4px;
    font-size: 1.3rem;
    color: #a7f3d0;
}

.url-import-subtitle {
    margin: 0;
    color: rgba(232, 245, 233, 0.7);
    font-size: 0.86rem;
}

.url-import-progress {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 0.82rem;
    color: rgba(232, 245, 233, 0.8);
    border-top: 1px solid rgba(74, 222, 128, 0.16);
    border-bottom: 1px solid rgba(74, 222, 128, 0.16);
    padding: 8px 0;
}

.url-import-current {
    font-size: 0.86rem;
    color: rgba(232, 245, 233, 0.9);
}

.url-import-pagehead {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 4px;
}

.url-import-pagehead strong {
    color: #a7f3d0;
    font-size: 1rem;
}

.url-import-pagehead a,
.url-import-link-url {
    color: rgba(134, 239, 172, 0.75);
    font-size: 0.74rem;
    word-break: break-all;
}

.url-import-linktools {
    display: flex;
    gap: 6px;
    align-items: center;
}

.url-import-filter {
    flex: 1;
    min-width: 0;
    padding: 7px 9px;
    border-radius: 8px;
    border: 1px solid rgba(74, 222, 128, 0.24);
    background: rgba(0, 0, 0, 0.3);
    color: #e8f5e9;
    font-size: 0.82rem;
}

.url-import-links {
    overflow-y: auto;
    flex: 1;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-right: 4px;
}

.url-import-link {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-areas: "check text" "check url";
    column-gap: 8px;
    align-items: center;
    padding: 7px 9px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid rgba(74, 222, 128, 0.12);
    cursor: pointer;
}

.url-import-link:hover {
    border-color: rgba(74, 222, 128, 0.3);
}

.url-import-link input[type="checkbox"] {
    grid-area: check;
    width: 18px;
    height: 18px;
    accent-color: #22c55e;
}

.url-import-link-text {
    grid-area: text;
    color: #e8f5e9;
    font-size: 0.86rem;
    font-weight: 600;
}

.url-import-link-url {
    grid-area: url;
}

.url-import-empty {
    color: rgba(232, 245, 233, 0.6);
    font-size: 0.85rem;
    font-style: italic;
    padding: 8px 0;
}

.url-import-build {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 18px 0;
}

.url-import-bar {
    height: 12px;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.32);
    border: 1px solid rgba(74, 222, 128, 0.2);
    overflow: hidden;
}

.url-import-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
    transition: width 0.2s ease;
}

.url-import-build-status {
    font-size: 0.86rem;
    color: rgba(232, 245, 233, 0.85);
}

.url-import-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    border-top: 1px solid rgba(74, 222, 128, 0.16);
    padding-top: 12px;
}

.url-import-actions .primary-btn {
    flex: 1;
}

.upload-card p,
.storage-line,
.workspace-meta,
.saved-book-meta,
.segment-meta,
.library-empty {
    color: rgba(255, 255, 255, 0.62);
    font-size: 0.82rem;
}

.library-toolbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    margin-bottom: 12px;
}

.library-progress-summary {
    display: grid;
    gap: 4px;
    padding: 10px;
    margin-bottom: 12px;
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.8rem;
    text-align: left;
}

.library-progress-summary strong {
    color: #a7f3d0;
}

.storage-line {
    justify-content: space-between;
    align-items: center;
}

.saved-book-list {
    display: grid;
    gap: 5px;
}

.library-empty {
    padding: 12px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.2);
}

.saved-book-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(190px, 230px);
    gap: 8px;
    align-items: center;
    width: 100%;
    min-height: 34px;
    padding: 5px 8px 7px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.28);
    border: 1px solid rgba(74, 222, 128, 0.12);
    color: inherit;
    text-align: left;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.saved-book-item:hover {
    border-color: rgba(74, 222, 128, 0.34);
    background: rgba(74, 222, 128, 0.06);
}

.saved-book-item.selected {
    border-color: rgba(74, 222, 128, 0.52);
    background: rgba(74, 222, 128, 0.08);
}

.saved-book-main {
    min-width: 0;
    display: flex;
    align-items: baseline;
    gap: 5px;
}

.saved-book-title {
    color: #e8f5e9;
    font-weight: 800;
    font-size: 0.84rem;
    line-height: 1.05;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.saved-book-author {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.72rem;
    flex: 0 1 auto;
    min-width: 34px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.saved-book-author::before {
    content: "· ";
    color: rgba(255, 255, 255, 0.32);
}

.saved-book-side {
    min-width: 0;
    text-align: right;
}

.saved-book-meta {
    display: flex;
    justify-content: flex-end;
    gap: 7px;
    align-items: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.7rem;
    line-height: 1.05;
}

.duration-value {
    display: inline-grid;
    grid-template-columns: 2ch 1.1ch 2ch 1.1ch;
    gap: 0.08ch;
    justify-content: end;
    font-variant-numeric: tabular-nums;
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    white-space: nowrap;
}

.duration-number {
    text-align: right;
}

.numeric-placeholder {
    visibility: hidden;
}

.saved-book-progress-bars {
    position: absolute;
    left: 8px;
    right: 8px;
    bottom: 3px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
}

.saved-book-progress {
    height: 3px;
    border-radius: 99px;
    background: rgba(255, 255, 255, 0.12);
    overflow: hidden;
}

.saved-book-progress.mp3 .saved-book-progress-fill {
    background: #fbbf24;
}

.saved-book-progress-fill {
    height: 100%;
    width: 0;
    background: #4ade80;
}

.book-workspace {
    padding: 10px;
    min-width: 0;
}

.workspace-header .secondary-btn {
    margin-bottom: 4px;
}

.workspace-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
    gap: 10px;
    align-items: start;
    margin-bottom: 8px;
}

.workspace-kicker {
    color: rgba(255, 255, 255, 0.52);
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.workspace-header h2 {
    margin: 0 0 2px;
    color: #a7f3d0;
    font-size: clamp(1.15rem, 2.4vw, 1.65rem);
}

.workspace-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 5px;
}

.workspace-actions .panel-action-btn {
    padding: 6px 7px;
    font-size: 0.74rem;
    line-height: 1.15;
}

.audio-parts-advanced {
    grid-column: 1 / -1;
    border-radius: 7px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.16);
}

.audio-parts-advanced > summary {
    padding: 6px 8px;
    color: rgba(255, 255, 255, 0.58);
    cursor: pointer;
    font-size: 0.72rem;
}

.audio-parts-advanced > div {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    padding: 0 7px 7px;
}

.chapter-audio-details {
    color: rgba(255, 255, 255, 0.58);
    font-size: 0.7rem;
}

.chapter-audio-details > summary {
    cursor: pointer;
}

.chapter-audio-details .chunk-dot-row {
    margin-top: 5px;
}

.book-progress-card {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    align-items: center;
    padding: 7px 9px;
    margin-bottom: 8px;
}

.book-progress-card span {
    color: rgba(255, 255, 255, 0.56);
    font-size: 0.78rem;
}

.book-progress-card strong {
    color: #e8f5e9;
}

.workspace-stack {
    display: grid;
    gap: 8px;
}

.generator-card h3,
.player-card h3 {
    margin: 0;
    color: #a7f3d0;
    font-size: 1rem;
}

.reader-panel {
    padding: 10px;
    min-height: 72vh;
}

.listen-panel {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    min-width: 0;
}

.reader-toolbar {
    margin-bottom: 10px;
    position: sticky;
    top: calc(var(--site-header-height, 0px) + 6px);
    z-index: 3;
    padding: 6px;
    border-radius: 8px;
    background: rgba(3, 18, 10, 0.96);
}

.reader-view {
    max-height: 72vh;
    overflow: auto;
    padding: 14px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.22);
    text-align: left;
    line-height: 1.7;
    font-family: Georgia, 'Times New Roman', serif;
    color: rgba(232, 245, 233, 0.92);
}

.reader-fullscreen-mode {
    overflow: hidden;
}

.reader-fullscreen-mode .site-header,
.reader-fullscreen-mode .books-library-panel,
.reader-fullscreen-mode .workspace-header,
.reader-fullscreen-mode .book-progress-card,
.reader-fullscreen-mode .listen-panel,
.reader-fullscreen-mode .compact-log,
.reader-fullscreen-mode .page-footer {
    display: none;
}

.reader-fullscreen-mode .container,
.reader-fullscreen-mode main,
.reader-fullscreen-mode .books-shell,
.reader-fullscreen-mode .book-workspace,
.reader-fullscreen-mode .workspace-stack,
.reader-fullscreen-mode .reader-panel {
    display: block;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
    border: none;
    background: transparent;
}

.reader-fullscreen-mode .reader-panel {
    position: fixed;
    inset: 0;
    z-index: 1200;
    padding: 12px;
    background: #07140d;
}

.reader-fullscreen-mode .reader-toolbar {
    position: fixed;
    top: 8px;
    right: 8px;
    z-index: 1201;
    padding: 4px;
    margin: 0;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.5);
}

.reader-fullscreen-mode .reader-search,
.reader-fullscreen-mode #readerSearchClearBtn {
    display: none;
}

.reader-fullscreen-mode #readerFullscreenBtn {
    padding: 6px 9px;
    font-size: 0.78rem;
}

.reader-fullscreen-mode .reader-view {
    max-height: 100vh;
    min-height: 100vh;
    max-width: 860px;
    margin: 0 auto;
    padding: clamp(18px, 4vw, 44px) clamp(18px, 4vw, 44px) 80px;
    font-size: clamp(1.08rem, 2.2vw, 1.35rem);
    line-height: 1.82;
    background: rgba(0, 0, 0, 0.24);
}

.reader-section {
    margin-bottom: 28px;
}

.reader-section h3 {
    color: #a7f3d0;
    font-family: inherit;
    margin: 0 0 10px;
}

.reader-segment {
    display: block;
    padding: 0;
    margin: 0 0 0.85em;
    border-radius: 0;
    border-left: none;
    cursor: pointer;
    white-space: pre-wrap;
}

.reader-segment.generated {
    color: rgba(232, 245, 233, 0.96);
}

.reader-segment.generating {
    color: #fde68a;
}

.reader-segment.current {
    outline: none;
    background: linear-gradient(
        90deg,
        rgba(74, 222, 128, 0.2) 0,
        rgba(74, 222, 128, 0.2) var(--read-progress, 0%),
        rgba(255, 255, 255, 0.055) var(--read-progress, 0%),
        rgba(255, 255, 255, 0.055) 100%
    );
}

.reader-segment mark {
    background: rgba(251, 191, 36, 0.55);
    color: #0d2818;
    border-radius: 3px;
}

.epub-section-html {
    padding: 10px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.14);
}

.epub-section-html p,
.epub-section-html blockquote,
.epub-section-html ul,
.epub-section-html ol {
    margin: 0.75em 0;
}

.epub-section-html img {
    max-width: 100%;
    height: auto;
}

.reader-audio-segments {
    margin-top: 12px;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.generator-card,
.player-card {
    padding: 12px;
}

.player-card {
    order: 1;
}

.generator-card {
    order: 2;
}

.conversion-options-card {
    margin-top: 10px;
    padding: 10px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid rgba(74, 222, 128, 0.18);
}

.voice-config-summary {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
    margin-top: 10px;
    padding: 10px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid rgba(74, 222, 128, 0.18);
    text-align: left;
}

.voice-config-summary strong {
    display: block;
    color: #a7f3d0;
    font-size: 0.82rem;
}

.voice-config-summary span {
    display: block;
    margin-top: 3px;
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.76rem;
}

.conversion-options-header {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    align-items: baseline;
    margin-bottom: 8px;
    color: #a7f3d0;
    font-size: 0.84rem;
}

.conversion-options-header span {
    color: rgba(255, 255, 255, 0.56);
    font-size: 0.72rem;
    text-align: right;
}

.conversion-options-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.conversion-options-grid label,
.chapter-generator-row label {
    display: grid;
    gap: 4px;
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.74rem;
    font-weight: 700;
    text-align: left;
}

.conversion-options-wide {
    grid-column: 1 / -1;
}

.model-pricing-line {
    grid-column: 1 / -1;
    margin: -2px 0 0;
    color: rgba(255, 255, 255, 0.62);
    font-size: 0.74rem;
    text-align: left;
}

.voice-samples-card {
    margin-top: 10px;
    padding: 8px;
    border-radius: 9px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.voice-samples-header {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    align-items: baseline;
    margin-bottom: 7px;
    color: rgba(232, 245, 233, 0.9);
    font-size: 0.8rem;
}

.voice-samples-header span,
.voice-sample-status {
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.72rem;
    text-align: right;
}

.voice-sample-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 5px;
}

/* Sample chips are shared vf-btn option chips; the grid sizes them and
   a playing chip glows amber while its sample is audible. */
.voice-sample-grid .vf-btn {
    text-align: center;
}

.voice-sample-grid .vf-btn.playing {
    background: rgba(251, 191, 36, 0.2);
    border-color: rgba(251, 191, 36, 0.46);
    color: #fde68a;
}

.voice-sample-status {
    margin-top: 6px;
    text-align: left;
}

.chapter-generator-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 6px;
    align-items: end;
    margin: 10px 0;
}

.chapter-generator-row label {
    min-width: 0;
}

.generator-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(84px, 1fr));
    gap: 5px;
    margin: 10px 0;
}

.generator-actions .primary-btn {
    padding: 8px 5px;
    font-size: 0.76rem;
    line-height: 1.1;
}

.generation-cancel-btn {
    width: 100%;
    padding: 8px;
    font-size: 0.8rem;
}

.ahead-toggle {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    color: rgba(255, 255, 255, 0.76);
    font-size: 0.86rem;
    text-align: left;
}

.mp3-status-card {
    margin: 10px 0;
    padding: 10px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.28);
    border: 1px solid rgba(74, 222, 128, 0.2);
}

.conversion-status-card {
    display: grid;
    gap: 8px;
    padding: 10px;
    margin: 10px 0;
}

.conversion-cost-row,
.chapter-status-top {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    align-items: baseline;
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.78rem;
}

.conversion-cost-row strong,
.chapter-status-top strong {
    color: #a7f3d0;
}

.chapter-status-list {
    display: grid;
    gap: 8px;
    max-height: 240px;
    overflow: auto;
}

.chapter-status-item {
    display: grid;
    gap: 5px;
    padding: 7px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.2);
}

.chapter-status-track {
    height: 5px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    overflow: hidden;
}

.chapter-status-track span {
    display: block;
    height: 100%;
    width: 0;
    background: #4ade80;
}

.chunk-dot-row {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.chunk-dot {
    min-width: 24px;
    min-height: 24px;
    padding: 0 5px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.68rem;
    cursor: pointer;
}

.chunk-dot.done {
    border-color: rgba(74, 222, 128, 0.46);
    background: rgba(74, 222, 128, 0.18);
    color: #bbf7d0;
}

.chunk-dot.generating {
    border-color: rgba(251, 191, 36, 0.5);
    color: #fde68a;
}

.chunk-dot.error {
    border-color: rgba(239, 68, 68, 0.5);
    color: #fca5a5;
}

.chunk-dot.current {
    outline: 2px solid rgba(167, 243, 208, 0.72);
}

.mp3-status-header {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: center;
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.82rem;
}

.mp3-status-header strong {
    color: #a7f3d0;
    text-align: right;
}

.mp3-status-detail,
.player-key-hint {
    margin-top: 6px;
    color: rgba(255, 255, 255, 0.58);
    font-size: 0.76rem;
    text-align: left;
}

.progress-bar-track {
    width: 100%;
    height: 8px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.36);
    margin-top: 6px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    width: 0;
    background: #4ade80;
    transition: width 0.16s ease;
}

.player-now {
    min-height: 42px;
    padding: 8px;
    margin: 10px 0;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.22);
    color: rgba(255, 255, 255, 0.76);
    font-size: 0.86rem;
    text-align: left;
}

.audio-player {
    display: none;
}

.custom-player {
    display: grid;
    gap: 6px;
    margin-top: 8px;
}

.player-seek-track {
    position: relative;
    width: 100%;
    /* Tall enough to hit while driving */
    height: 22px;
    border: none;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.13);
    overflow: hidden;
    cursor: pointer;
}

.player-progress-fill {
    position: absolute;
    inset: 0 auto 0 0;
    width: 0;
    background: #4ade80;
}

.player-time-row {
    display: flex;
    justify-content: space-between;
    color: rgba(255, 255, 255, 0.62);
    font-family: 'SF Mono', 'Consolas', monospace;
    font-size: 0.74rem;
}

.player-control-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 4px;
}

/* Driving-friendly transport: tall tap targets that can be hit without
   looking closely, Play the tallest and brightest of the row. */
.player-control-grid .panel-action-btn,
.player-control-grid .primary-btn {
    padding: 7px 4px;
    min-height: 58px;
    font-size: 0.8rem;
    font-weight: 700;
    line-height: 1.1;
    border-radius: 10px;
}

.player-control-grid .primary-btn {
    font-size: 1rem;
}

.player-actions {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 6px;
    margin-top: 10px;
}

.player-actions .primary-btn,
.player-actions .panel-action-btn {
    width: 100%;
    min-height: 48px;
}

.transport-step-btn {
    font-size: 0.86rem;
}

.ai-research-card {
    order: 1;
    padding: 14px;
    border-radius: 12px;
    border: 1px solid rgba(96, 165, 250, 0.42);
    background:
        linear-gradient(145deg, rgba(30, 58, 138, 0.22), rgba(15, 23, 42, 0.82)),
        rgba(0, 0, 0, 0.28);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.04);
}

.ai-research-heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    align-items: start;
    text-align: left;
}

.ai-research-heading h3 {
    margin: 2px 0 3px;
    color: #dbeafe;
    font-size: 1.08rem;
}

.ai-research-heading p {
    margin: 0;
    color: rgba(255, 255, 255, 0.66);
    font-size: 0.8rem;
}

.ai-research-eyebrow {
    color: #60a5fa;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.14em;
}

.ai-research-route {
    max-width: 250px;
    padding: 6px 8px;
    border-radius: 8px;
    background: rgba(96, 165, 250, 0.12);
    color: #bfdbfe;
    font-family: 'SF Mono', 'Consolas', monospace;
    font-size: 0.68rem;
    line-height: 1.35;
    text-align: right;
}

.ai-question-launch-btn {
    width: 100%;
    min-height: 56px;
    margin-top: 12px;
    font-size: 1rem;
}

.ai-question-launch-btn.listening {
    background: #ef4444;
    border-color: #fca5a5;
}

.ai-question-panel {
    display: grid;
    gap: 10px;
    margin-top: 12px;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid rgba(147, 197, 253, 0.2);
    background: rgba(2, 6, 23, 0.72);
    text-align: left;
}

.ai-question-header {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: flex-start;
}

.ai-question-header > div {
    display: grid;
    gap: 3px;
}

.ai-question-header strong {
    color: #bfdbfe;
}

.ai-question-header span,
.ai-question-status,
.ai-question-transcript {
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.8rem;
}

.ai-question-field {
    display: grid;
    gap: 5px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.82rem;
    font-weight: 700;
}

.ai-question-field textarea {
    width: 100%;
    min-height: 76px;
    padding: 9px;
    resize: vertical;
    border-radius: 8px;
    border: 1px solid rgba(96, 165, 250, 0.38);
    background: rgba(0, 0, 0, 0.34);
    color: #f8fafc;
    font: inherit;
    font-weight: 400;
}

.ai-question-context {
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(0, 0, 0, 0.22);
}

.ai-question-context summary {
    padding: 8px 10px;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.8rem;
    font-weight: 700;
}

#aiQuestionRequestPreview,
#aiQuestionContextText {
    max-height: 220px;
    overflow: auto;
    padding: 0 10px 10px;
    white-space: pre-wrap;
    color: rgba(255, 255, 255, 0.72);
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 0.84rem;
    line-height: 1.5;
}

#aiQuestionRequestPreview {
    margin: 0;
    font-family: 'SF Mono', 'Consolas', monospace;
    font-size: 0.7rem;
}

.ai-question-speak-option {
    display: flex;
    gap: 8px;
    align-items: center;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.82rem;
}

.ai-question-submit-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(130px, 0.35fr);
    gap: 10px;
    align-items: center;
}

.ai-question-submit-row button {
    min-height: 46px;
}

.ai-question-flight {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: center;
    min-height: 24px;
}

.ai-question-elapsed {
    flex: 0 0 auto;
    color: #93c5fd;
    font-family: 'SF Mono', 'Consolas', monospace;
    font-size: 0.76rem;
}

.ai-question-answer {
    padding: 10px;
    border-radius: 8px;
    background: rgba(96, 165, 250, 0.1);
    border: 1px solid rgba(96, 165, 250, 0.22);
    color: #f8fafc;
    line-height: 1.5;
}

.ai-answer-header {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: center;
    margin-bottom: 8px;
    color: #bfdbfe;
}

.ai-answer-navigation {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 4px;
    margin-bottom: 8px;
}

.ai-answer-navigation button {
    min-height: 38px;
    padding: 5px 3px;
    font-size: 0.68rem;
}

.ai-answer-play-btn {
    min-width: 58px;
}

.ai-answer-play-btn.playing {
    color: #fecaca;
    border-color: rgba(248, 113, 113, 0.48);
}

.ai-question-answer-text {
    max-height: 360px;
    overflow: auto;
    white-space: pre-wrap;
}

.ai-question-answer-text a {
    color: #93c5fd;
    text-decoration: underline;
}

.ai-answer-sentence.current {
    border-radius: 3px;
    background: rgba(250, 204, 21, 0.2);
    color: #fef9c3;
}

.ai-question-sources {
    display: grid;
    gap: 5px;
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.ai-question-sources strong,
.ai-question-images strong {
    color: #bfdbfe;
    font-size: 0.78rem;
}

.ai-question-sources a {
    color: #93c5fd;
    font-size: 0.76rem;
}

.ai-question-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 8px;
    margin-top: 12px;
}

.ai-question-images > strong {
    grid-column: 1 / -1;
}

.ai-question-image {
    display: grid;
    gap: 5px;
    align-content: start;
    padding: 6px;
    border-radius: 8px;
    border: 1px solid rgba(147, 197, 253, 0.18);
    background: rgba(0, 0, 0, 0.24);
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.68rem;
    text-decoration: none;
}

.ai-question-image img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.05);
}

.ai-research-history {
    margin-top: 10px;
    border-radius: 8px;
    border: 1px solid rgba(147, 197, 253, 0.16);
    background: rgba(0, 0, 0, 0.18);
}

.ai-research-history > summary {
    padding: 9px 10px;
    color: #bfdbfe;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 700;
}

.ai-research-history-list {
    display: grid;
    gap: 5px;
    max-height: 240px;
    overflow: auto;
    padding: 0 8px 8px;
}

.ai-research-history-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    width: 100%;
    padding: 8px;
    border-radius: 7px;
    border: 1px solid rgba(147, 197, 253, 0.14);
    background: rgba(96, 165, 250, 0.06);
    color: rgba(255, 255, 255, 0.82);
    text-align: left;
}

.ai-research-history-item small {
    color: rgba(255, 255, 255, 0.54);
}

.history-panel {
    margin-top: 10px;
    padding: 10px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.24);
    border: 1px solid rgba(74, 222, 128, 0.18);
}

.history-panel .history-header {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    align-items: center;
    margin-bottom: 0;
    color: #a7f3d0;
}

.history-panel .history-summary {
    display: grid;
    gap: 4px;
    margin: 8px 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.78rem;
    text-align: left;
}

.history-panel .history-list {
    display: grid;
    gap: 4px;
    max-height: 180px;
    overflow: auto;
    color: rgba(255, 255, 255, 0.64);
    font-size: 0.72rem;
    text-align: left;
}

.history-panel .history-item {
    padding: 5px 6px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.04);
}

.compact-log {
    margin-top: 0;
}

.compact-log .log-content {
    max-height: 180px;
}

@media (max-width: 980px) {
    .books-shell {
        grid-template-columns: 1fr;
    }

    .listen-panel {
        grid-template-columns: 1fr;
    }

    .books-library-panel {
        position: static;
        max-height: none;
    }

    .library-toolbar {
        grid-template-columns: 1fr;
    }

    .workspace-header {
        grid-template-columns: 1fr;
    }

    .workspace-actions {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .conversion-options-grid {
        grid-template-columns: 1fr;
    }

    .voice-config-summary {
        grid-template-columns: 1fr;
    }

    .ai-research-heading {
        grid-template-columns: 1fr;
    }

    .ai-research-route {
        max-width: none;
        text-align: left;
    }

    .voice-sample-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 520px) {
    .book-progress-card {
        grid-template-columns: 1fr;
    }

    .workspace-actions,
    .storage-line,
    .reader-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .generator-actions {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .chapter-generator-row {
        grid-template-columns: 1fr;
    }

    .voice-sample-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .player-control-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .ai-question-submit-row {
        grid-template-columns: 1fr;
    }

    .ai-answer-navigation {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}