* {
      box-sizing: border-box;
    }

    /* fixes modal input overflow */

    :root {
      --ui-font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "Noto Sans", "Liberation Sans", sans-serif;
      --border: #e2e8f0;
      --border-strong: #ddd;
      --meta: #1f7a3b;
      --muted: #666;
      --bg: #fff;
      --panel: #fafafa;
      --mode-active: #e5e7eb;
      --active: #d0e7ff;
      --primary: #1f6feb;
      --done-bg: #f1f5f9;
      --done-bar: #cbd5e1;
    }

    body {
      font-family: var(--ui-font);
      margin: 0;
      display: flex;
      flex-direction: column;
      height: 100vh;
      background: var(--bg);
    }

    input,
    textarea,
    button,
    select {
      font-family: inherit;
    }


    header {
      padding: 8px 12px;
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      z-index: 1200;
      background: #f8fafc;
      font-size: 0.86rem;
    }


    /* Header layout (2-line, balanced scanning) */
    .header-line {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      min-width: 0;
    }

    .header-left {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      flex: 0 0 auto;
    }

    .header-right {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 8px;
      min-width: 0;
      flex: 1 1 auto;
      flex-wrap: nowrap;
    }

    .header-line2 {
      margin-top: 4px;
      font-size: 0.74rem;
      color: #64748b;
    }

    .file-summary {
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 100%;
    }

    /* File chooser buttons behave like normal buttons (not full-width) */
    .file-btn {
      width: auto !important;
      max-width: 220px;
      justify-content: center;
      text-align: center;
    }

    .header-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
      grid-template-rows: auto auto;
      column-gap: 14px;
      row-gap: 6px;
      align-items: center;
    }

    .hg-cell {
      display: flex;
      align-items: center;
      min-width: 0;
    }

    .hg-right-top,
    .hg-right-bottom {
      justify-content: flex-end;
    }

    .hg-left-top,
    .hg-right-top {
      font-size: 0.82rem;
    }

    .hg-left-bottom,
    .hg-right-bottom {
      font-size: 0.88rem;
    }

    .file-picker {
      width: 100%;
      min-width: 0;
    }

    .header-row {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      overflow: hidden;
    }


    .header-top {
      font-size: 0.85rem;
    }

    .header-bottom {
      font-size: 0.9rem;
    }

    .mode-toggle {
      font-size: inherit;
    }

    .mode-btn {
      font-size: inherit;
    }

    .file-btn {
      font-size: inherit;
    }

    .file-name {
      font-size: inherit;
    }

    .file-picker {
      display: flex;
      align-items: center;
      gap: 8px;
      flex: 1 1 0;
      min-width: 0;
    }

    .file-btn {
      display: inline-flex;
      align-items: center;
      justify-content: flex-start;
      width: 100%;
      min-width: 0;
      overflow: hidden;
      text-overflow: ellipsis;
      padding: 6px 10px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: var(--panel);
      cursor: pointer;
      user-select: none;
      white-space: nowrap;
    }

    .hg-right-top .file-btn {
      justify-content: flex-end;
      text-align: right;
    }

    .file-btn:hover {
      filter: brightness(0.98);
    }

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

    header button {
      margin-right: 0;
    }

    .header-actions {
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }


    .pill {
      display: inline-flex;
      align-items: center;
      padding: 4px 10px;
      border: 1px solid var(--border);
      border-radius: 999px;
      font-size: 0.82rem;
      white-space: nowrap;
      user-select: none;
      background: var(--bg);
    }

    header label {
      white-space: nowrap;
    }

    header input[type="file"] {
      max-width: 220px;
    }

    header input[type="file"] {
      font-size: 0.92rem;
    }

    header input[type="file"]::file-selector-button.icon {
      width: 30px;
      height: 30px;
      padding: 0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      font-size: 16px;
    }

    button {
      margin-right: 8px;
      padding: 6px 10px;
      border: 1px solid var(--border-strong);
      border-radius: 10px;
      background: var(--panel);
      cursor: pointer;
    }

    header input[type="file"]::file-selector-button:hover {
      filter: brightness(0.98);
    }

    header input[type="file"]::-webkit-file-upload-button {
      margin-right: 8px;
      padding: 6px 10px;
      border: 1px solid var(--border-strong);
      border-radius: 10px;
      background: var(--panel);
      cursor: pointer;
    }

    header input[type="file"]::-webkit-file-upload-button:hover {
      filter: brightness(0.98);
    }


    .spacer {
      flex: 1 1 auto;
      min-width: 0;
    }

    main {
      display: flex;
      flex-direction: column;
      flex: 1;
      min-height: 0;
    }

    #segments {
      flex: 1;
      overflow-y: auto;
      padding: 8px 12px 12px;
      border-bottom: 1px solid var(--border);
      outline: none;
    }

    .segment {
      display: flex;
      align-items: flex-start;
      gap: 3px;
      padding: 4px 4px;
      margin-bottom: 0;
      border-bottom: 1px solid #eee;
    }

    .segment.active {
      background: var(--active);
      border-bottom-color: #9ac2ff;
    }



    /* Done segments: neutral "completed" styling (workflow meta) */
    .segment.done {
      background: var(--done-bg);
      /* very light cool gray */
      box-shadow: inset 3px 0 0 var(--done-bar);
      /* subtle left bar */
      margin-bottom: 0;
      /* remove white gaps between done rows */
      border-bottom-color: var(--done-bg);
      /* hide separator line for done rows */
    }

    /* When a done segment is active, keep the same light-blue highlight as normal segments */
    .segment.done.active {
      background: var(--active);
      border-bottom-color: #9ac2ff;
    }

    /* Done segment inputs share the same light gray as the segment row */
    .segment.done .text-input,
    .segment.done .speaker-input,
    .segment.done .speaker-dd-btn,
    .segment.done .time-input {
      background: var(--done-bg) !important;
    }

    /* Done segment action buttons match the done background */
    .segment.done .icon-btn {
      background: var(--done-bg);
    }


    .segment.done .text-input,
    .segment.done .speaker-input,
    .segment.done .time-input {
      opacity: 0.82;
    }

    .segment.done.active .text-input,
    .segment.done.active .speaker-input,
    .segment.done.active .time-input {
      opacity: 1;
    }

    .done-btn {
      width: 30px;
      height: 30px;
      flex: 0 0 30px;
      border: 1px solid transparent;
      background: transparent;
      border-radius: 6px;
      cursor: pointer;
      color: inherit;
      padding: 0;
      line-height: 1;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .done-btn:hover {
      border-color: #d1d5db;
      background: rgba(0, 0, 0, 0.02);
    }

    .done-btn[aria-pressed="true"] {
      border-color: #94a3b8;
      background: rgba(148, 163, 184, 0.10);
    }

    /* Repeat loop markers (A/B): tiny badges on the Done button (no extra layout space) */
    .done-btn[data-loopmark] {
      position: relative;
    }

    .done-btn[data-loopmark]::after {
      content: attr(data-loopmark);
      position: absolute;
      top: -3px;
      right: -3px;
      width: 12px;
      height: 12px;
      border-radius: 999px;
      border: 1px solid rgba(148, 163, 184, 0.95);
      background: rgba(226, 232, 240, 0.95);
      color: rgba(30, 41, 59, 0.95);
      font-size: 9px;
      line-height: 1;
      display: flex;
      align-items: center;
      justify-content: center;
      pointer-events: none;
    }

    .segment.active .done-btn[data-loopmark]::after {
      border-color: rgba(59, 130, 246, 0.90);
      background: rgba(191, 219, 254, 0.95);
      color: rgba(30, 64, 175, 0.95);
    }

    /* Repeat segment marker (R): second tiny badge on the Done button (no extra layout space) */
    .done-btn[data-repeatmark] {
      position: relative;
    }

    .done-btn[data-repeatmark]::before {
      content: attr(data-repeatmark);
      position: absolute;
      top: -3px;
      left: -3px;
      width: 12px;
      height: 12px;
      border-radius: 999px;
      border: 1px solid rgba(148, 163, 184, 0.95);
      background: rgba(226, 232, 240, 0.95);
      color: rgba(30, 41, 59, 0.95);
      font-size: 9px;
      line-height: 1;
      display: flex;
      align-items: center;
      justify-content: center;
      pointer-events: none;
    }

    .segment.active .done-btn[data-repeatmark]::before {
      border-color: rgba(59, 130, 246, 0.90);
      background: rgba(191, 219, 254, 0.95);
      color: rgba(30, 64, 175, 0.95);
    }

    #loopPill {
      cursor: pointer;
    }

    .hidden {
      display: none !important;
    }

    .svc-settings-wrap {
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 1100px;
    }

    .svc-settings-header {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }

    .svc-settings-title {
      margin: 0;
      font-size: 1.3rem;
      line-height: 1.2;
    }

    .svc-settings-subtitle {
      margin: 6px 0 0;
      color: var(--muted);
      font-size: 0.92rem;
    }

    .svc-settings-status {
      font-size: 0.9rem;
    }

    .svc-settings-tabs {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .svc-settings-tab {
      border: 1px solid var(--border);
      background: #fff;
      border-radius: 8px;
      padding: 6px 10px;
      cursor: pointer;
      font-size: 0.9rem;
    }

    .svc-settings-tab.active {
      background: var(--active);
      border-color: #9ac6f6;
      font-weight: 600;
    }

    .svc-settings-panel {
      border: 1px solid var(--border);
      border-radius: 10px;
      background: #fff;
      padding: 14px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      min-height: 220px;
    }

    .svc-settings-empty {
      color: var(--muted);
      font-size: 0.92rem;
    }

    .svc-settings-meta {
      display: grid;
      grid-template-columns: 1fr;
      gap: 4px;
      font-size: 0.9rem;
      color: #111;
    }

    .svc-settings-error {
      color: #a11;
      background: #fff2f2;
      border: 1px solid #ffd5d5;
      border-radius: 8px;
      padding: 8px 10px;
      font-size: 0.9rem;
      white-space: pre-wrap;
      word-break: break-word;
    }

    .svc-settings-json {
      margin: 0;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: #f8fafc;
      padding: 10px;
      overflow: auto;
      font-size: 0.84rem;
      line-height: 1.45;
      max-height: 65vh;
    }

    /* Text View Styles */
    .tv-seg {
      color: #334155;
      cursor: pointer;
      transition: color 0.15s, background-color 0.15s;
    }

    .tv-seg:hover {
      background-color: #f1f5f9;
      color: #0f172a;
    }

    .tv-seg.active {
      background-color: #dbeafe;
      /* Light blue highlight */
      color: #0f172a;
      /* Strong black */
      font-weight: 500;
    }

    /* While playing: emphasize the active line text */
    .segment.active .text-input {
      font-weight: 500;
      color: #0f172a;
      /* Darker/Black for active */
    }

    .segment.active .speaker-input {
      font-weight: 600;
      color: var(--meta);
      /* Restore green for active speaker if desired, or keep dark */
    }

    .segment.active .time {
      font-weight: 500;
    }

    .segment.active .time-input {
      font-weight: 500;
    }

    /* Editable timestamp: looks like text, becomes an input on focus */
    .time-input {
      width: 78px;
      height: 30px;
      padding: 5px 7px;
      border: 1px solid var(--border);
      background: var(--bg);
      color: var(--meta);
      text-align: right;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: 0.82em;
      line-height: 1.6;
      border-radius: 10px;
      outline: none;
      box-sizing: border-box;
    }

    .time-input:focus {
      box-shadow: 0 0 0 2px rgba(31, 111, 235, 0.18);
    }

    .time {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: 0.82em;
      width: 78px;
      flex: 0 0 auto;
      line-height: 1.6;
      text-align: right;
      padding: 5px 7px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: var(--bg);
      color: var(--meta);
      box-sizing: border-box;
    }

    .speaker-wrap {
      display: inline-flex;
      align-items: stretch;
      flex: 0 0 auto;
      gap: 0;
    }

    .speaker-input {
      width: 108px;
      flex: 0 0 auto;
      font-size: 0.85rem;
      padding: 5px 7px;
      border: 1px solid var(--border);
      border-right: none;
      border-radius: 10px 0 0 10px;
      background: var(--bg);
      color: var(--meta);
      outline: none;
    }

    .speaker-input:focus {
      box-shadow: 0 0 0 2px rgba(31, 111, 235, 0.18);
    }

    .speaker-dd-btn {
      padding: 5px 5px;
      min-width: 22px;
      border: 1px solid var(--border);
      border-left: none;
      border-radius: 0 10px 10px 0;
      background: var(--panel);
      color: var(--meta);
      line-height: 1;
    }

    .speaker-dd-btn:hover {
      filter: brightness(0.98);
    }

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

    .speaker-dropdown {
      position: fixed;
      z-index: 5000;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 12px;
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
      max-height: 280px;
      overflow: auto;
      min-width: 200px;
      padding: 6px 0;
    }

    .speaker-option {
      padding: 8px 12px;
      cursor: pointer;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      font-size: 0.95rem;
    }

    .speaker-option:hover {
      background: var(--active);
    }

    .speaker-option.active {
      background: var(--active);
    }

    .text-input {
      flex: 1 1 auto;
      min-height: 30px;
      height: 30px;
      resize: none;
      overflow: hidden;
      font-size: 0.85rem;
      line-height: 1.2;
      padding: 5px 7px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: var(--bg);
      outline: none;
      color: #334155;
      /* Soften from black */
      font-weight: 400;
      /* Ensure normal weight */
    }

    .text-input:focus {
      box-shadow: 0 0 0 2px rgba(31, 111, 235, 0.18);
    }

    button {
      flex: 0 0 auto;
      padding: 6px 10px;
      border: 1px solid var(--border-strong);
      background: var(--panel);
      border-radius: 10px;
      cursor: pointer;
    }

    button:focus-visible {
      outline: none;
      box-shadow: 0 0 0 2px rgba(31, 111, 235, 0.18);
    }

    button:hover {
      filter: brightness(0.98);
    }

    button:disabled {
      opacity: 0.55;
      cursor: not-allowed;
    }


    /* Compact colored icon buttons (28x28) */
    .icon-btn {
      width: 28px;
      height: 28px;
      padding: 0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      border: 1px solid var(--border-strong);
      background: #f8fafc;
      font-size: 14px;
      line-height: 1;
      user-select: none;
    }

    .icon-btn:hover {
      filter: brightness(0.985);
    }

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

    .icon-btn.play,
    .icon-btn.split {
      background: #f8fafc;
      border-color: var(--border-strong);
      color: #64748b;
    }

    .mini {
      padding: 0;
      width: 28px;
      height: 28px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.95em;
      line-height: 1;
      border-radius: 10px;
    }

    .btn-small {
      padding: 4px 10px;
      min-width: 84px;
      height: 30px;
      box-sizing: border-box;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      white-space: nowrap;
    }

    /* Help modal: close button should fit its label (not icon-sized) */
    #helpModal #closeHelpBtn {
      min-width: auto;
      height: 28px;
      padding: 0 10px;
    }


    .col-buttons {
      display: flex;
      gap: 6px;
      align-items: flex-start;
    }

    #player-container {
      /* In-flow (not overlaying the transcript scrollbar) */
      position: relative;
      padding: 8px 12px;
      background: var(--bg);
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 8px;
      z-index: 5;
    }

    .primary {
      background: var(--primary);
      border-color: var(--primary);
      color: white;
    }

    .primary:hover {
      filter: brightness(0.98);
    }

    .kbd {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: 0.9em;
      padding: 2px 6px;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: var(--panel);
    }

    /* Modal */
    .modal.hidden {
      display: none;
    }

    .modal {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.38);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 3000;
      padding: 16px;
    }

    .modal-card {
      background: var(--bg);
      border-radius: 14px;
      border: 1px solid var(--border);
      width: min(560px, 96vw);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
      padding: 14px;
    }






    /* Settings modal */
    .settings-card {
      width: min(520px, calc(100vw - 24px));
      max-height: calc(100vh - 24px);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      --drag-x: 0px;
      --drag-y: 0px;
      transform: translate(var(--drag-x), var(--drag-y));
    }

    .settings-topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      padding: 8px 10px;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(6px);
      border-bottom: 1px solid var(--border);
      cursor: grab;
      user-select: none;
    }

    .settings-topbar:active {
      cursor: grabbing;
    }

    .settings-title {
      font-size: 0.85rem;
      font-weight: 700;
      text-align: left;
    }

    .settings-grip {
      color: var(--muted);
      letter-spacing: 2px;
      font-size: 0.95rem;
    }

    .settings-body {
      padding: 10px;
      font-size: 0.85rem;
      overflow: auto;
    }

    .settings-hint {
      margin-top: 6px;
      font-size: 0.82rem;
      line-height: 1.35;
    }

    .settings-option-sep {
      height: 14px;
    }

    .settings-actions {
      display: flex;
      justify-content: flex-end;
      margin-top: 12px;
    }

    .settings-close {
      padding: 4px 10px;
      min-width: 70px;
      height: 30px;
      box-sizing: border-box;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      white-space: nowrap;
    }

    /* Find/Replace modal */
    .find-card {
      width: fit-content;
      max-width: min(560px, calc(100vw - 24px));
      max-height: calc(100vh - 24px);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      /* draggable offset */
      --drag-x: 0px;
      --drag-y: 0px;
      transform: translate(var(--drag-x), var(--drag-y));
    }

    .find-topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      padding: 8px 10px;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(6px);
      border-bottom: 1px solid var(--border);
      cursor: grab;
      user-select: none;
    }

    .find-topbar:active {
      cursor: grabbing;
    }

    .find-title {
      font-size: 0.85rem;
      font-weight: 700;
    }

    .find-grip {
      color: var(--muted);
      letter-spacing: 2px;
      font-size: 0.95rem;
    }



    .find-body {
      padding: 10px;
      overflow: auto;
      font-size: 0.85rem;
    }

    .find-row {
      display: grid;
      grid-template-columns: 90px auto;
      align-items: center;
      gap: 10px;
      margin: 8px 0;
    }

    .find-row label {
      font-weight: 600;
    }

    .find-row input {
      height: 30px;
      border-radius: 10px;
      border: 1px solid var(--border);
      padding: 0 10px;
      font: inherit;
      font-size: 1em;
      background: var(--bg);
      width: clamp(200px, 42vw, 310px);
      max-width: 310px;
      /* slightly wider inputs */
      justify-self: start;
    }

    .find-options,
    .find-scope {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 14px;
      align-items: center;
      margin-top: 10px;
    }

    .find-options .chk,
    .find-scope .rad {
      display: inline-flex;
      gap: 6px;
      align-items: center;
      user-select: none;
    }






    .find-actions {
      display: grid;
      grid-template-columns: 108px 92px 118px 1fr 70px;
      grid-template-rows: auto auto;
      column-gap: 8px;
      row-gap: 4px;
      margin-top: 12px;
      width: 100%;
      align-items: center;
    }

    #findNextBtn {
      width: 108px;
      grid-column: 1;
      grid-row: 1;
    }

    #replaceBtn {
      width: 92px;
      grid-column: 2;
      grid-row: 1;
    }

    #replaceAllBtn {
      width: 118px;
      grid-column: 3;
      grid-row: 1;
    }

    #closeFindBtn {
      width: 70px;
      grid-column: 5;
      grid-row: 1;
      justify-self: end;
      padding: 4px 10px;
      height: 30px;
      box-sizing: border-box;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      white-space: nowrap;
    }

    #findStatus {
      grid-column: 1 / 5;
      /* spans across the first 4 columns for more space */
      grid-row: 2;
      font-size: 0.82rem;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: clip;
      color: var(--muted);
      line-height: 1.15;
    }

    #findStatus.error {
      color: #b00020;
    }

    /* History modal */
    .history-card {
      max-width: 860px;
      width: min(860px, calc(100vw - 24px));
      max-height: calc(100vh - 24px);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .history-topbar {
      position: sticky;
      top: 0;
      z-index: 2;
      display: flex;
      justify-content: flex-end;
      padding: 8px;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(6px);
      border-bottom: 1px solid var(--border);
    }

    .history-close {
      padding: 4px 10px;
      font-size: 0.88rem;
      border-radius: 10px;
      min-width: 88px;
      white-space: nowrap;
    }

    .history-body {
      padding: 10px;
      overflow: auto;
    }

    .history-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 0;
    }

    .history-head {
      font-size: 0.85rem;
      font-weight: 600;
      margin: 6px 0;
      display: flex;
      align-items: baseline;
      justify-content: space-between;
    }

    .history-list {
      border: 1px solid var(--border);
      border-radius: 12px;
      background: var(--panel);
      max-height: 220px;
      overflow: auto;
      overflow-x: hidden;
      padding: 6px;
    }

    .history-item {
      width: 100%;
      max-width: 100%;
      box-sizing: border-box;
      text-align: left;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
      padding: 5px 7px;
      margin: 0;
      border: 1px solid transparent;
      background: transparent;
      border-radius: 10px;
      cursor: pointer;
      font: inherit;
      font-size: 0.78rem;
      line-height: 1.2;
    }

    .history-item:hover {
      background: rgba(0, 0, 0, 0.04);
    }

    .history-item.active {
      border-color: #cfd8e3;
      background: rgba(0, 0, 0, 0.03);
    }

    .history-item .left {
      min-width: 0;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .history-item .right {
      flex: 0 0 auto;
      color: var(--muted);
      font-size: 0.85em;
    }

    .history-details {
      margin-top: 10px;
    }

    .history-pre {
      border: 1px solid var(--border);
      border-radius: 12px;
      background: var(--bg);
      padding: 10px;
      max-height: 220px;
      overflow: auto;
      font-size: 0.78rem;
      line-height: 1.35;
      white-space: pre-wrap;
      word-break: break-word;
    }

    .modal-card h3 {
      margin: 4px 0 10px;
      font-size: 1.05rem;
    }

    .modal-card p {
      margin: 0 0 12px;
      color: var(--muted);
    }

    .modal.delete-project-modal {
      align-items: flex-start;
      justify-content: flex-start;
      padding: 0;
    }

    .delete-project-card {
      position: absolute;
      left: var(--dp-left, 16px);
      top: var(--dp-top, 80px);
      width: min(420px, calc(100vw - 20px));
      padding: 12px;
    }

    .delete-project-card h3 {
      margin: 2px 0 8px;
      font-size: 0.94rem;
      font-weight: 500;
    }

    .delete-project-card p {
      margin: 0 0 10px;
      font-size: 0.86rem;
      line-height: 1.4;
      color: var(--muted);
    }

    .danger-soft {
      background: #fef2f2;
      border-color: #fecaca;
      color: #b91c1c;
    }

    .danger-soft:hover {
      background: #fee2e2;
      border-color: #fca5a5;
    }

    @media (max-width: 600px) {
      .modal.delete-project-modal {
        align-items: center;
        justify-content: center;
        padding: 16px;
      }

      .delete-project-card {
        position: relative;
        left: auto;
        top: auto;
        width: min(420px, 96vw);
        padding: 12px;
      }
    }

    .modal-row {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-bottom: 12px;
    }

    .modal-row label {
      font-size: 0.92rem;
      color: var(--muted);
    }

    .modal-row input {
      font-size: 1rem;
      padding: 8px 10px;
      border: 1px solid var(--border);
      border-radius: 10px;
      width: 100%;
    }

    .modal-actions {
      display: flex;
      gap: 10px;
      justify-content: flex-end;
    }

    .muted {
      color: var(--muted);
    }

    /* Footer right area */
    .footer-right {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
    }


    .footer-right button {
      margin-right: 0;
    }

    /* Help modal */
    .help-card {
      width: min(560px, 96vw);
      max-height: calc(100vh - 24px);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      padding: 0;
      /* override modal-card padding */
      --drag-x: 0px;
      --drag-y: 0px;
      transform: translate(var(--drag-x), var(--drag-y));
    }

    .help-topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      padding: 8px 10px;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(6px);
      border-bottom: 1px solid var(--border);
      border-radius: 14px 14px 0 0;
      cursor: grab;
      user-select: none;
    }

    .help-topbar:active {
      cursor: grabbing;
    }

    .help-title {
      font-size: 0.85rem;
      font-weight: 700;
    }

    .help-grip {
      color: var(--muted);
      letter-spacing: 2px;
      font-size: 0.95rem;
    }

    .help-body {
      padding: 10px;
      overflow: auto;
      font-size: 0.85rem;
      flex: 1 1 auto;
    }

    .help-actions {
      display: flex;
      justify-content: flex-end;
      gap: 10px;
      padding: 10px;
      border-top: 1px solid var(--border);
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(6px);
      border-radius: 0 0 14px 14px;
    }

    .help-actions button {
      margin-right: 0;
    }

    .help-grid {
      display: grid;
      grid-template-columns: 180px 1fr;
      gap: 8px 12px;
      align-items: start;
    }

    .help-key {
      white-space: nowrap;
    }



    /* Filter UI */
    .filter-bar {
      border-bottom: 1px solid var(--border);
      background: var(--panel);
      padding: 6px 12px;
      display: flex;
      gap: 10px;
      align-items: center;
      justify-content: space-between;
      font-size: 0.82rem;
    }

    .filter-bar.hidden {
      display: none;
    }

    .filter-bar-left {
      display: flex;
      align-items: center;
      gap: 8px;
      min-width: 0;
    }

    .filter-bar-right {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .filter-bar-right button {
      margin-right: 0;
    }

    .filter-chips {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
      min-width: 0;
    }

    .filter-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 3px 9px;
      border: 1px solid var(--border);
      border-radius: 999px;
      font-size: 0.75rem;
      white-space: nowrap;
      user-select: none;
      background: var(--bg);
      max-width: 320px;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .filter-chip .x {
      border: none;
      background: transparent;
      padding: 0 2px;
      margin: 0;
      cursor: pointer;
      font-size: 14px;
      line-height: 1;
      color: var(--muted);
    }

    .filter-chip .x:hover {
      color: #000;
    }

    .segment.filtered-out {
      display: none !important;
    }

    .segment.forced-visible {
      outline: 2px solid rgba(255, 193, 7, 0.45);
      outline-offset: -2px;
    }

    .filter-notice {
      background: #fff7e6;
      border-bottom: 1px solid #ffd7a8;
      padding: 8px 12px;
      display: flex;
      gap: 10px;
      align-items: center;
      justify-content: space-between;
    }

    .filter-notice.hidden {
      display: none;
    }

    .filter-notice-text {
      color: #8a4b00;
      font-size: 0.82rem;
    }

    .filter-notice-actions {
      display: flex;
      gap: 8px;
      align-items: center;
      flex-wrap: wrap;
    }

    .filter-card {
      width: min(640px, calc(100vw - 24px));
      max-height: calc(100vh - 24px);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      padding: 0;
      --drag-x: 0px;
      --drag-y: 0px;
      transform: translate(var(--drag-x), var(--drag-y));
    }

    .filter-topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      padding: 8px 10px;
      border-bottom: 1px solid var(--border);
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(6px);
      border-radius: 14px 14px 0 0;
      cursor: grab;
      user-select: none;
    }

    .filter-topbar:active {
      cursor: grabbing;
    }

    .filter-title {
      font-size: 0.85rem;
      font-weight: 700;
    }

    .filter-grip {
      color: var(--muted);
      letter-spacing: 2px;
      font-size: 0.95rem;
    }

    .filter-body {
      padding: 10px;
      overflow: visible;
      font-size: 0.85rem;
    }

    .filter-section {
      padding: 10px 0;
      border-bottom: 1px solid #eee;
    }

    .filter-section:last-child {
      border-bottom: none;
    }

    .filter-head {
      font-weight: 700;
      font-size: 0.85rem;
    }

    .filter-speakers {
      margin-top: 8px;
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 8px 10px;
      max-height: 150px;
      overflow: auto;
      background: var(--bg);
    }

    .filter-speakers .chk {
      display: flex;
      gap: 8px;
      align-items: center;
      margin: 4px 0;
    }

    .filter-inline {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 8px;
    }

    .filter-actions {
      display: flex;
      justify-content: space-between;
      gap: 8px;
      padding-top: 10px;
    }


    /* Mode toggle (Segments/Text) */
    .mode-toggle {
      display: inline-flex;
      align-items: center;
      border: 1px solid var(--border);
      border-radius: 10px;
      overflow: hidden;
      background: #fff;
      box-shadow: 0 1px 0 rgba(0, 0, 0, 0.02);
      margin-right: 8px;
    }

    .mode-toggle button {
      margin-right: 0;
    }

    .mode-btn {
      border: 0;
      background: transparent;
      padding: 6px 10px;
      cursor: pointer;
      font: inherit;
      color: var(--text);
      line-height: 1;
    }

    .mode-btn:hover {
      filter: brightness(0.98);
    }

    .mode-btn.active {
      background: var(--mode-active);
      font-weight: 600;
    }

    /* Text View */
    #textView {
      flex: 1;
      overflow-y: auto;
      padding: 10px 12px 12px;
      border-bottom: 1px solid var(--border);
      outline: none;
    }

    :root {
      --tv-meta-width: 228px;
    }

    /* aligns roughly with time+speaker area in Segments view */

    .tv-block {
      display: grid;
      grid-template-columns: var(--tv-meta-width) 1fr;
      column-gap: 12px;
      margin: 10px 0 14px;
    }

    .tv-meta {
      align-self: start;
    }

    .tv-meta-row {
      display: flex;
      align-items: baseline;
      gap: 8px;
      background: var(--bg);
    }

    .tv-time {
      width: 78px;
      flex: 0 0 auto;
      text-align: right;
      padding-right: 4px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: 0.82em;
      line-height: 1.6;
      color: #000;
      white-space: nowrap;
    }

    .tv-speaker {
      width: 130px;
      flex: 0 0 auto;
      font-size: 0.85rem;
      font-weight: 600;
      color: #000;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .tv-text {
      white-space: pre-wrap;
      line-height: 1.5;
      font-size: 14px;
    }

    .tv-seg {
      border-radius: 6px;
      padding: 0 2px;
      cursor: pointer;
    }

    .tv-seg:hover {
      background: rgba(125, 170, 255, 0.18);
    }

    .tv-seg.active {
      background: var(--active);
    }

    /* Text view: show loop/repeat marks (A/B/R) on the segment span */
    .tv-seg[data-loopmark],
    .tv-seg[data-repeatmark] {
      position: relative;
    }

    /* Loop B: End of segment -> ::after */
    .tv-seg[data-loopmark*="B"]::after {
      content: "B";
      display: inline-flex;
      vertical-align: text-top;
      margin-left: 2px;
      width: 12px;
      height: 12px;
      border-radius: 999px;
      border: 1px solid rgba(148, 163, 184, 0.95);
      background: rgba(226, 232, 240, 0.95);
      color: rgba(30, 41, 59, 0.95);
      font-size: 9px;
      line-height: 1;
      align-items: center;
      justify-content: center;
      pointer-events: none;
    }

    /* Loop A: Start of segment -> ::before */
    .tv-seg[data-loopmark*="A"]::before {
      content: "A";
      display: inline-flex;
      vertical-align: text-top;
      margin-right: 2px;
      width: 12px;
      height: 12px;
      border-radius: 999px;
      border: 1px solid rgba(148, 163, 184, 0.95);
      background: rgba(226, 232, 240, 0.95);
      color: rgba(30, 41, 59, 0.95);
      font-size: 9px;
      line-height: 1;
      align-items: center;
      justify-content: center;
      pointer-events: none;
    }

    /* Repeat mark R: Start of segment -> ::before */
    .tv-seg[data-repeatmark]::before {
      content: attr(data-repeatmark);
      display: inline-flex;
      vertical-align: text-top;
      margin-right: 2px;
      width: 12px;
      height: 12px;
      border-radius: 999px;
      border: 1px solid rgba(148, 163, 184, 0.95);
      background: rgba(226, 232, 240, 0.95);
      color: rgba(30, 41, 59, 0.95);
      font-size: 9px;
      line-height: 1;
      align-items: center;
      justify-content: center;
      pointer-events: none;
    }

    /* Collision: If both R and A (start) are present on the same segment, show both in ::before */
    .tv-seg[data-repeatmark][data-loopmark*="A"]::before {
      content: attr(data-repeatmark) " A";
      /* e.g. "R A" */
      width: auto;
      /* Allow width to expand for 2 chars */
      padding: 0 4px;
      /* Add some padding */
      gap: 2px;
    }

    .tv-seg.active[data-loopmark]::after,
    .tv-seg.active[data-repeatmark]::before {
      border-color: rgba(59, 130, 246, 0.90);
      background: rgba(191, 219, 254, 0.95);
    }


    /* Subtle Done indication in Text view */
    .tv-seg.done {
      background: var(--done-bg);
      box-shadow: inset 0 -2px 0 var(--done-bar);
    }

    .tv-seg.done.active {
      background: var(--active);
      box-shadow: inset 0 -2px 0 var(--done-bar);
    }

    /* Tiny toast (used for "Not yet implemented") */
    .toast {
      position: fixed;
      right: 12px;
      bottom: 12px;
      background: #111;
      color: #fff;
      padding: 8px 12px;
      border-radius: 10px;
      font: inherit;
      font-size: 13px;
      line-height: 1.2;
      box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
      opacity: 0;
      transform: translateY(6px);
      transition: opacity .15s ease, transform .15s ease;
      z-index: 9999;
      pointer-events: none;
    }

    .toast.show {
      opacity: 1;
      transform: translateY(0);
    }


    /* LOCAL_SAVE_BANNER_V1 */
    .save-banner {
      border-top: 0;
      border-bottom: 1px solid var(--border);
      background: #fafafa;
      padding: 10px 14px;
      display: flex;
      gap: 10px;
      align-items: center;
      flex-wrap: wrap;
    }

    .save-banner strong {
      font-weight: 600;
    }

    .save-banner .muted {
      color: var(--muted);
      font-size: 13px;
    }

    .save-banner .spacer {
      flex: 1 1 auto;
    }

    .save-banner button {
      border: 1px solid var(--border-strong);
      background: white;
      border-radius: 10px;
      padding: 8px 10px;
      cursor: pointer;
    }

    .save-banner button.primary {
      background: var(--accent, #1f6feb);
      color: white;
      border-color: var(--accent, #1f6feb);
    }

    /* =========================================
   New Component Styles & Responsive Layout
   ========================================= */

    /* --- Document View Container --- */
    #docViewContainer {
      flex: 1;
      display: flex;
      flex-direction: row;
      /* Side-by-side layout */
      overflow: hidden;
      min-height: 0;
    }

    #textView {
      flex: 1;
      overflow-y: auto;
      padding: 10px 12px 12px;
      border-bottom: 1px solid var(--border);
      outline: none;
      min-width: 0;
    }

    /* --- Topics View --- */
    #topicsView {
      width: 300px;
      flex-shrink: 0;
      background: var(--panel);
      border-left: 1px solid var(--border);
      overflow-y: auto;
      padding: 16px;
      font-size: 0.9rem;
      /* hidden class will set display: none, removing it from flow completely -> Safe! */
    }

    .topics-header {
      margin: 0 0 12px;
      font-size: 1rem;
      font-weight: 600;
      color: #333;
    }

    .topics-list {
      display: flex;
      flex-direction: column;
      gap: 0;
    }

    .topic-item {
      display: flex;
      flex-direction: row;
      gap: 10px;
      padding: 10px 8px;
      border-bottom: 1px solid var(--border);
      cursor: pointer;
      transition: background 0.1s;
    }

    .topic-item:hover {
      background: var(--mode-active);
    }

    .topic-item.active {
      background: rgba(59, 130, 246, 0.08);
      /* Light blue tint */
      border-left: 3px solid var(--accent);
    }

    .topic-item.active .topic-title {
      color: var(--accent);
      font-weight: 700;
    }

    .topic-time {
      font-family: monospace;
      /* Consolas-like */
      font-size: 0.8em;
      color: var(--muted);
      flex-shrink: 0;
      padding-top: 2px;
    }

    .topic-content {
      min-width: 0;
    }

    .topic-title {
      font-weight: 600;
      margin-bottom: 2px;
      line-height: 1.3;
    }

    .topic-desc {
      font-size: 0.85em;
      color: var(--muted);
      line-height: 1.4;
    }

    /* --- TextView Component Internal Styles (Restored from editor.html) --- */
    :root {
      --tv-meta-width: 228px;
    }

    .tv-block {
      display: grid;
      grid-template-columns: var(--tv-meta-width) 1fr;
      column-gap: 12px;
      margin: 10px 0 14px;
    }

    .tv-meta {
      align-self: start;
    }

    .tv-meta-row {
      display: flex;
      align-items: baseline;
      gap: 8px;
      background: var(--bg);
    }

    .tv-time {
      width: 78px;
      flex: 0 0 auto;
      text-align: right;
      padding-right: 4px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: 0.82em;
      line-height: 1.6;
      color: #000;
      white-space: nowrap;
    }

    .tv-speaker {
      width: 130px;
      flex: 0 0 auto;
      font-size: 0.85rem;
      font-weight: 600;
      color: #000;
      white-space: normal;
      /* Wrapper enabled per user request */
      word-wrap: break-word;
      overflow-wrap: break-word;
      line-height: 1.2;
    }

    .tv-text {
      white-space: pre-wrap;
      line-height: 1.5;
      font-size: 14px;
      color: #111;
      font-family: var(--ui-font);
    }

    .tv-seg {
      cursor: text;
      border-radius: 3px;
      padding: 1px 0;
    }

    .tv-seg:hover {
      background: rgba(0, 0, 0, 0.03);
    }

    .tv-seg.active {
      background: var(--active);
      box-shadow: 0 0 0 2px var(--active);
    }

    .tv-seg.done {
      color: #888;
    }

    /* --- Responsive / Mobile --- */
    /* Only apply stacked layout if JS detected a mobile device */
    body.mobile #docViewContainer {
      flex-direction: column;
    }

    body.mobile #textView {
      padding: 16px;
      width: 100%;
      order: 1;
    }

    body.mobile .doc-view-splitter {
      order: 2;
    }

    body.mobile #topicsView {
      width: 100%;
      border-left: none;
      border-top: none;
      order: 3;
    }

    body.mobile .tv-block {
      display: block;
      /* Stack vertically */
      margin-bottom: 20px;
      gap: 0;
    }

    body.mobile .tv-meta {
      width: 100%;
      text-align: left;
      margin-bottom: 4px;
      display: flex;
      flex-direction: row;
      align-items: baseline;
      gap: 10px;
    }

    body.mobile .tv-time {
      display: inline;
      font-size: 0.8rem;
    }

    body.mobile .tv-speaker {
      display: inline;
      font-size: 0.9rem;
    }

    /* --- Mobile / Desktop Utility Classes --- */
    body.mobile .desktop-only {
      display: none !important;
    }

    body.desktop .mobile-only {
      display: none !important;
    }

    /* Additional cleanup for mobile review mode */
    body.mobile .header-actions {
      gap: 4px;
    }

    /* --- Step 1: Upload Zone --- */
    .upload-zone {
      border: 2px dashed #e2e8f0;
      border-radius: 16px;
      background: #fcfdfe;
      padding: 48px 24px;
      text-align: center;
      transition: all 0.2s ease;
      cursor: pointer;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      width: 100%;
      box-sizing: border-box;
    }

    .upload-zone:hover {
      border-color: var(--primary);
      background: #f8faff;
    }

    .upload-zone-content {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 16px;
    }

    .upload-icon {
      color: #94a3b8;
      transition: color 0.2s ease;
    }

    .upload-zone:hover .upload-icon {
      color: var(--primary);
      transform: translateY(-2px);
    }

    .upload-zone.drag-over {
      border-color: var(--primary);
      background: #eff6ff;
      transform: scale(1.02);
    }

    .upload-hint {
      font-size: 14px;
      color: #64748b;
      margin: 0;
    }

    /* --- File Confirm Box (Premium Redesign) --- */
    .file-confirm-box {
      display: flex;
      align-items: center;
      background: linear-gradient(135deg, #ffffff 0%, #f8faff 100%);
      border: 1px solid #e2e8f0;
      border-radius: 14px;
      padding: 16px;
      gap: 16px;
      box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
      margin-bottom: 0;
    }

    .file-icon-styled {
      flex-shrink: 0;
      width: 48px;
      height: 48px;
      background: #eff6ff;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      border: 1px solid #dbeafe;
      box-shadow: inset 0 2px 4px rgba(37, 99, 235, 0.03);
    }

    .file-info {
      flex: 1;
      display: flex;
      flex-direction: column;
      min-width: 0;
    }

    .file-name-label {
      font-size: 15px;
      font-weight: 600;
      color: #0f172a;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      line-height: 1.3;
    }

    .change-file-link {
      background: none;
      border: none;
      padding: 0;
      margin: 4px 0 0 0;
      color: #64748b;
      font-size: 13px;
      cursor: pointer;
      text-align: left;
      transition: color 0.2s ease;
      width: fit-content;
      font-weight: 500;
    }

    .change-file-link:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    /* Update Start Translation button to be more prominent in step 2 */
    #startUploadBtn.primary {
      padding: 12px 24px;
      font-size: 15px;
      font-weight: 600;
      border-radius: 10px;
      letter-spacing: 0.01em;
      box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.1);
      transition: opacity 0.2s ease;
    }

    #startUploadBtn.primary:hover {
      opacity: 0.9;
    }

    /* Desktop: Flow normally */
    body.desktop .header-file-actions {
      display: flex;
      gap: 8px;
      align-items: center;
    }

    /* Mobile: Dropdown Menu */
    body.mobile .header-file-actions {
      display: none;
      position: absolute;
      top: 100%;
      right: 0;
      background: var(--bg);
      border: 1px solid var(--border);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
      border-radius: 6px;
      flex-direction: column;
      padding: 8px;
      min-width: 200px;
      z-index: 1000;
      margin-top: 8px;
    }

    body.mobile .header-file-actions.show-menu {
      display: flex;
    }

    body.mobile .header-file-actions button,
    body.mobile .header-file-actions label {
      width: 100%;
      text-align: left;
      margin-bottom: 4px;
      justify-content: flex-start;
    }


    /* --- Custom Audio Player --- */
    #customPlayer {
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .custom-player-wrapper {
      display: flex;
      align-items: center;
      width: 100%;
      gap: 12px;
      padding: 4px 8px;
      box-sizing: border-box;
    }

    .cp-btn {
      background: none;
      border: none;
      cursor: pointer;
      padding: 4px;
      border-radius: 50%;
      color: var(--text);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .cp-btn:hover {
      background: rgba(0, 0, 0, 0.05);
    }

    .cp-time-current,
    .cp-time-total {
      font-family: monospace;
      font-size: 0.85rem;
      color: var(--muted);
      min-width: 45px;
      text-align: center;
    }

    .cp-timeline-wrapper {
      flex: 1;
      position: relative;
      height: 32px;
      display: flex;
      align-items: center;
    }

    /* Range Input Styling */
    .cp-timeline {
      -webkit-appearance: none;
      appearance: none;
      /* Standard property */
      width: 100%;
      height: 4px;
      background: #e0e0e0;
      border-radius: 2px;
      outline: none;
      cursor: pointer;
      position: relative;
      z-index: 2;
    }

    /* 3. The input on top (transparent, for interaction) */
    .cp-timeline {
      -webkit-appearance: none;
      appearance: none;
      width: 100%;
      height: 100%;
      background: transparent;
      border-radius: 2px;
      outline: none;
      cursor: pointer;
      position: relative;
      z-index: 3;
      margin: 0;
      /* Ensure track doesn't show default white on drag in some browsers */
      box-shadow: none;
      border: none;
    }

    /* Chrome/Safari Overlay Track Fix */
    .cp-timeline::-webkit-slider-runnable-track {
      background: transparent;
      border: none;
      box-shadow: none;
    }

    /* Thumb (Invisible but clickable) */
    .cp-timeline::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      height: 16px;
      width: 16px;
      border-radius: 50%;
      background: transparent;
      border: none;
      box-shadow: none;
      cursor: pointer;
      margin-top: 0;
    }

    /* Firefox */
    .cp-timeline::-moz-range-track {
      background: transparent;
      border: none;
    }

    .cp-timeline::-moz-range-thumb {
      height: 16px;
      width: 16px;
      border: none;
      background: transparent;
      box-shadow: none;
      cursor: pointer;
    }

    /* The filled progress bar - Darker/Accent color */
    .cp-progress-bar {
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      height: 6px;
      /* Slightly thicker */
      background: var(--primary);
      /* Stronger color */
      width: 0%;
      border-radius: 3px;
      pointer-events: none;
      z-index: 2;
    }

    /* The background track */
    .cp-track-bg {
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 100%;
      height: 6px;
      background: #e2e8f0;
      /* Lighter background */
      border-radius: 3px;
      z-index: 1;
    }

    /* --- Mobile Sticky Player Logic --- */
    body.mobile #player-container {
      position: fixed !important;
      bottom: 0 !important;
      left: 0 !important;
      width: 100% !important;
      z-index: 9999 !important;
      /* Force on top */
      border-top: 1px solid var(--border);
      background: var(--panel);
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
      display: flex !important;
      /* Ensure flex layout is kept */
    }

    /* Ensure content is not hidden behind player */
    body.mobile #docViewContainer {
      padding-bottom: 80px;
      /* Space for player */
      height: 100dvh;
      /* Use dynamic viewport height */
      box-sizing: border-box;
      overflow: hidden;
      /* Children scroll individually, not the container */
    }

    body.mobile #textView {
      /* Add padding to bottom of scrollable text area */
      padding-bottom: 100px;
    }

    /* Fix indentation of timestamp/speaker/text on mobile */
    /* Fix indentation of timestamp/speaker/text on mobile */
    /* Fix indentation of timestamp/speaker/text on mobile */
    body.mobile .tv-meta,
    body.mobile .tv-block,
    body.mobile .tv-text {
      padding-left: 0 !important;
      margin-left: 0 !important;
    }

    /* Mobile Header Info (in-flow) */
    .mobile-header-info {
      display: block;
      padding: 10px 12px;
      margin-bottom: 0px;
      border-bottom: 1px solid var(--border);
      color: var(--muted);
      font-size: 0.85rem;
      font-weight: 500;
      text-align: center;
      background: #fcfcfc;
      flex-shrink: 0;
    }

    /* Hide main header on mobile (Aggressive) */
    body.mobile>header,
    body.mobile header {
      display: none !important;
      visibility: hidden !important;
      height: 0 !important;
      overflow: hidden !important;
    }

    /* --- Mobile Relative Sizing (60/40) --- */
    body.mobile #docViewContainer {
      flex-direction: column !important;
      /* Stack vertically */
    }

    body.mobile #textView {
      /* 60% relative height */
      flex: 6 1 0% !important;
      overflow-y: auto !important;
      padding-bottom: 20px !important;
      min-height: 0;
      /* Fix indentation */
      padding-left: 0 !important;
      margin-left: 0 !important;
      padding-right: 0 !important;
    }

    /* Hide main header on mobile (Aggressive) */
    body.mobile>header,
    body.mobile header {
      display: none !important;
      visibility: hidden !important;
      height: 0 !important;
      overflow: hidden !important;
    }

    /* --- Mobile Draggable Split (textView / topicsView) --- */
    body.mobile #docViewContainer {
      flex-direction: column !important;
      --tv-split-ratio: 0.6;
      /* default 60% text / 40% topics — overridden by JS */
    }

    body.mobile #textView {
      flex: none !important;
      height: calc(var(--tv-split-ratio) * (100% - 12px)) !important;
      overflow-y: auto !important;
      padding: 10px !important;
      min-height: 60px !important;
    }

    body.mobile #topicsView {
      flex: 1 1 0% !important;
      width: 100% !important;
      border-left: none !important;
      border-top: none !important;
      min-height: 60px !important;
      overflow-y: auto !important;
      display: block !important;
      padding-bottom: 100px;
    }

    /* --- Doc-View Splitter Handle (mobile only) --- */
    .doc-view-splitter {
      flex: 0 0 auto;
      height: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: row-resize;
      touch-action: none;
      user-select: none;
      -webkit-user-select: none;
      background: #f5f5f5;
      border-top: 1px solid var(--border, #e0e0e0);
      border-bottom: 1px solid var(--border, #e0e0e0);
      z-index: 10;
      position: relative;
    }

    .doc-view-splitter-grip {
      width: 32px;
      height: 3px;
      border-radius: 2px;
      background: #999;
      opacity: 0.7;
      transition: opacity 0.15s;
    }

    .doc-view-splitter:active .doc-view-splitter-grip,
    .doc-view-splitter.dragging .doc-view-splitter-grip {
      opacity: 1;
      background: #555;
    }



    /* --- Mobile Player Optimization --- */
    body.mobile .cp-speed {
      display: none !important;
      /* Remove speed selector to save space */
    }

    body.mobile .custom-player-wrapper {
      gap: 6px;
      /* Tighter gap */
      padding: 0 4px;
    }

    body.mobile .cp-play {
      margin-right: 0;
    }

    /* Ensure progress bar expands */
    body.mobile .cp-timeline-wrapper {
      flex: 1 1 auto;
      margin: 0 4px;
    }

    /* Topics View Height Increase for comfort */
    body.mobile #topicsView {
      /* Approximate height for 1 comfortable item + margins */
      min-height: 80px;
    }


    .cp-speed {
      font-family: inherit;
      font-size: 0.75rem;
      border-radius: 4px;
      padding: 2px 2px;
      /* Very tight padding */
      border: 1px solid var(--border);
      background: var(--bg);
      cursor: pointer;
      margin-left: 8px;
      width: auto;
      /* Browser specific hacks to reduce width */
      text-align: center;
      text-align-last: center;
    }

    #mobileMenuBtn {
      font-size: 1.2rem;
      padding: 4px 10px;
      background: none;
      border: 1px solid var(--border);
    }

    .hidden {
      display: none !important;
    }