.kotoba-jab-lab-root {
      color-scheme: light;
      --navy: #172554;
      --navy-2: #1e3a8a;
      --blue: #2563eb;
      --violet: #7c3aed;
      --ink: #172033;
      --muted: #64748b;
      --line: #dbe4f0;
      --paper: #fff;
      --soft: #f5f7fb;
      --ok: #0f9f6e;
      --danger: #dc2626;
      --shadow: 0 18px 48px rgb(15 23 42 / 14%);
    }

    .kotoba-jab-lab-root * { box-sizing: border-box; }

    .kotoba-jab-lab-root,


    .kotoba-jab-lab-root {
      min-height: 100%;
      margin: 0;
      background: #eef2ff;
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP",
        "Yu Gothic", Meiryo, sans-serif;
    }

    .kotoba-jab-lab-root button,


    .kotoba-jab-lab-root textarea,


    .kotoba-jab-lab-root select,


    .kotoba-jab-lab-root input { font: inherit; }
    .kotoba-jab-lab-root button { -webkit-tap-highlight-color: transparent; }
    .kotoba-jab-lab-root [hidden] { display: none !important; }

    .kotoba-jab-lab-root .app {
      display: flex; /* 修正: 画面サイズに関わらず縦スクロールをなくすためflex columnで高さを固定 */
      flex-direction: column;
      height: 100dvh;
      min-height: 0;
      overflow: hidden; /* 修正: ページ全体ではなくアプリ枠内で高さを固定 */
      background:
        radial-gradient(circle at 15% 20%, rgb(96 165 250 / 26%), transparent 30rem),
        radial-gradient(circle at 85% 75%, rgb(167 139 250 / 25%), transparent 30rem),
        linear-gradient(135deg, #e0f2fe, #ede9fe);
    }

    .kotoba-jab-lab-root .topbar {
      flex: 0 0 auto; /* 修正: flex column内でヘッダーの高さを保持し本文側だけを伸縮させる */
      position: sticky;
      top: 0;
      z-index: 20;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
      align-items: center;
      gap: 16px;
      min-height: 68px;
      padding: 10px clamp(14px, 3vw, 32px);
      background: rgb(23 37 84 / 96%);
      color: #fff;
      box-shadow: 0 6px 22px rgb(15 23 42 / 22%);
      backdrop-filter: blur(14px);
    }

    .kotoba-jab-lab-root .brand {
      display: flex;
      min-width: 0;
      align-items: center;
      gap: 11px;
      font-size: clamp(18px, 2vw, 24px);
      font-weight: 900;
      letter-spacing: .02em;
    }

    .kotoba-jab-lab-root .brand-mark {
      display: grid;
      width: 42px;
      aspect-ratio: 1;
      grid-template-columns: repeat(3, 1fr);
      gap: 2px;
      flex: 0 0 auto;
      padding: 6px;
      border-radius: 12px;
      background: #fff;
    }

    .kotoba-jab-lab-root .brand-mark i { border-radius: 2px; }
    .kotoba-jab-lab-root .brand-mark i:nth-child(4n + 1) { background: #111827; }
    .kotoba-jab-lab-root .brand-mark i:nth-child(4n + 2) { background: #facc15; }
    .kotoba-jab-lab-root .brand-mark i:nth-child(4n + 3) { background: #ef4444; }
    .kotoba-jab-lab-root .brand-mark i:nth-child(4n) { background: #2563eb; }

    .kotoba-jab-lab-root .tabs {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4px;
      padding: 4px;
      border-radius: 999px;
      background: rgb(255 255 255 / 14%);
    }

    .kotoba-jab-lab-root .tab {
      min-width: 118px;
      min-height: 42px;
      padding: 8px 18px;
      border: 0;
      border-radius: 999px;
      background: transparent;
      color: #dbeafe;
      font-weight: 900;
      cursor: pointer;
    }

    .kotoba-jab-lab-root .tab[aria-selected="true"] {
      background: #fff;
      color: var(--navy);
      box-shadow: 0 3px 12px rgb(0 0 0 / 18%);
    }

    .kotoba-jab-lab-root .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      min-height: 36px;
      padding: 6px 12px;
      border: 1px solid rgb(255 255 255 / 25%);
      border-radius: 999px;
      background: rgb(255 255 255 / 10%);
      color: #dbeafe;
      font-size: 13px;
      font-weight: 800;
    }

    .kotoba-jab-lab-root .header-actions {
      justify-self: end;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .kotoba-jab-lab-root .license-button {
      min-height: 36px;
      padding: 6px 12px;
      border: 1px solid rgb(255 255 255 / 30%);
      border-radius: 999px;
      background: #fff;
      color: var(--navy);
      font-size: 13px;
      font-weight: 900;
      cursor: pointer;
    }

    .kotoba-jab-lab-root .status-dot {
      width: 9px;
      aspect-ratio: 1;
      border-radius: 50%;
      background: #4ade80;
      box-shadow: 0 0 0 4px rgb(74 222 128 / 15%);
    }

    .kotoba-jab-lab-root.is-modal-open { overflow: hidden; }

    .kotoba-jab-lab-root .license-modal {
      position: fixed;
      inset: 0;
      z-index: 1000;
      display: grid;
      place-items: center;
      padding: 18px;
    }

    .kotoba-jab-lab-root .license-backdrop {
      position: absolute;
      inset: 0;
      background: rgb(15 23 42 / 62%);
      backdrop-filter: blur(5px);
    }

    .kotoba-jab-lab-root .license-dialog {
      position: relative;
      display: flex;
      width: min(760px, 100%);
      max-height: min(82dvh, 760px);
      flex-direction: column;
      overflow: hidden;
      border-radius: 22px;
      background: #fff;
      color: #475569;
      box-shadow: 0 28px 80px rgb(15 23 42 / 35%);
      font-size: 12px;
    }

    .kotoba-jab-lab-root .license-dialog-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 16px 18px;
      border-bottom: 1px solid var(--line);
    }

    .kotoba-jab-lab-root .license-dialog-header h2 {
      margin: 0;
      color: var(--ink);
      font-size: 20px;
    }

    .kotoba-jab-lab-root .license-close {
      display: grid;
      width: 42px;
      aspect-ratio: 1;
      flex: 0 0 auto;
      place-items: center;
      border: 0;
      border-radius: 50%;
      background: #eef2ff;
      color: var(--navy);
      font-size: 27px;
      line-height: 1;
      cursor: pointer;
    }

    .kotoba-jab-lab-root .license-content {
      flex: 1;
      min-height: 0;
      overflow: auto;
      padding: 0 18px 18px;
      line-height: 1.65;
    }

    .kotoba-jab-lab-root .license-content h2,


    .kotoba-jab-lab-root .license-content h3 {
      color: #1e293b;
    }

    .kotoba-jab-lab-root .license-content h2 {
      margin: 12px 0 4px;
      font-size: 15px;
    }

    .kotoba-jab-lab-root .license-content h3 {
      margin: 18px 0 4px;
      font-size: 13px;
    }

    .kotoba-jab-lab-root .license-content p {
      margin: 6px 0;
    }

    .kotoba-jab-lab-root .license-text {
      margin: 8px 0 0;
      padding: 12px;
      overflow-wrap: anywhere;
      border-radius: 10px;
      background: #f8fafc;
      color: #334155;
      font: 11px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
      white-space: pre-wrap;
    }

    .kotoba-jab-lab-root .license-content a {
      color: #1d4ed8;
    }

    .kotoba-jab-lab-root main {
      display: flex; /* 修正: 残り高さいっぱいにパネルを広げ、はみ出た分だけ内部スクロールさせる */
      flex-direction: column;
      flex: 1;
      min-height: 0;
      overflow: hidden;
      width: min(1180px, calc(100% - 28px));
      margin: 0 auto;
      padding: clamp(10px, 2vw, 22px) 0;
    }

    .kotoba-jab-lab-root .panel {
      display: flex; /* 修正: 中のgridを高さいっぱいに広げるため */
      flex: 1;
      min-height: 0;
      overflow: hidden;
      border: 1px solid rgb(255 255 255 / 85%);
      border-radius: 26px;
      background: rgb(255 255 255 / 93%);
      box-shadow: var(--shadow);
    }

    .kotoba-jab-lab-root .send-grid,


    .kotoba-jab-lab-root .receive-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(350px, .82fr);
      flex: 1; /* 修正: 親panelの残り高さいっぱいに広げる */
      width: 100%;
      min-height: 0;
    }

    .kotoba-jab-lab-root .receive-grid {
      grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }

    .kotoba-jab-lab-root .work {
      display: flex;
      min-width: 0;
      min-height: 0; /* 修正: グリッドセル内で縮められるようにする */
      flex-direction: column;
      gap: 18px;
      padding: clamp(20px, 3vw, 38px);
      overflow-y: auto; /* 修正: ページではなくこの領域内だけで必要な時にスクロール */
    }

    .kotoba-jab-lab-root .preview {
      display: flex;
      min-width: 0;
      min-height: 0;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 18px;
      padding: clamp(20px, 3vw, 38px);
      border-left: 1px solid var(--line);
      background: linear-gradient(165deg, #f8fafc, #eef2ff);
      overflow-y: auto;
    }

    .kotoba-jab-lab-root .reader-side,
    .kotoba-jab-lab-root .result-side {
      display: flex;
      min-width: 0;
      min-height: 0;
      flex-direction: column;
      gap: 18px;
      padding: clamp(20px, 3vw, 38px);
      overflow-y: auto;
    }

    .kotoba-jab-lab-root .reader-side {
      justify-content: center;
    }

    .kotoba-jab-lab-root .result-side {
      border-left: 1px solid var(--line);
      background: linear-gradient(165deg, #f8fafc, #eef2ff);
    }

    .kotoba-jab-lab-root .eyebrow {
      margin: 0 0 5px;
      color: var(--blue);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: .12em;
    }

    .kotoba-jab-lab-root h1 {
      margin: 0;
      font-size: clamp(25px, 3.4vw, 40px);
      line-height: 1.18;
    }

    .kotoba-jab-lab-root .lead {
      margin: 8px 0 0;
      color: var(--muted);
      font-weight: 700;
      line-height: 1.7;
    }

    .kotoba-jab-lab-root .input-wrap {
      position: relative;
      flex: 1;
      min-height: 290px;
    }

    .kotoba-jab-lab-root textarea {
      width: 100%;
      height: 100%;
      min-height: 290px;
      resize: none;
      padding: 20px 20px 54px;
      border: 2px solid var(--line);
      border-radius: 18px;
      outline: none;
      background: #fff;
      color: var(--ink);
      font-size: clamp(17px, 1.8vw, 21px);
      line-height: 1.75;
      transition: border-color .16s, box-shadow .16s;
    }

    .kotoba-jab-lab-root textarea:focus {
      border-color: #818cf8;
      box-shadow: 0 0 0 5px rgb(99 102 241 / 12%);
    }

    .kotoba-jab-lab-root .counter {
      position: absolute;
      right: 14px;
      bottom: 13px;
      padding: 5px 10px;
      border-radius: 999px;
      background: #eef2ff;
      color: #475569;
      font-size: 13px;
      font-weight: 800;
    }

    .kotoba-jab-lab-root .options {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
    }

    .kotoba-jab-lab-root .option {
      display: flex;
      align-items: center;
      gap: 9px;
      min-height: 46px;
      padding: 8px 13px;
      border: 1px solid var(--line);
      border-radius: 13px;
      background: #fff;
      font-weight: 800;
    }

    .kotoba-jab-lab-root select {
      border: 0;
      outline: 0;
      background: transparent;
      color: var(--ink);
      font-weight: 900;
    }

    .kotoba-jab-lab-root .actions {
      display: flex;
      gap: 11px;
      flex-wrap: wrap;
    }

    .kotoba-jab-lab-root .btn {
      display: inline-flex;
      min-height: 50px;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 11px 18px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: #fff;
      color: var(--ink);
      font-weight: 900;
      cursor: pointer;
      transition: transform .12s, box-shadow .12s, filter .12s;
    }

    .kotoba-jab-lab-root .btn:hover { filter: brightness(.98); box-shadow: 0 7px 18px rgb(15 23 42 / 10%); }
    .kotoba-jab-lab-root .btn:active { transform: translateY(1px) scale(.99); }
    .kotoba-jab-lab-root .btn:disabled { opacity: .48; cursor: not-allowed; box-shadow: none; }

    .kotoba-jab-lab-root .btn-primary {
      flex: 1 1 240px;
      border-color: transparent;
      background: linear-gradient(135deg, var(--blue), var(--violet));
      color: #fff;
      font-size: 17px;
      box-shadow: 0 12px 26px rgb(79 70 229 / 25%);
    }

    .kotoba-jab-lab-root .btn-danger { color: var(--danger); }

    .kotoba-jab-lab-root .code-stage {
      position: relative;
      display: grid;
      flex-shrink: 0; /* 修正: flex columnで高さが足りない時に正方形が潰れてQRが見切れるのを防止 */
      width: min(100%, 520px);
      aspect-ratio: 1;
      place-items: center;
      overflow: hidden;
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: 22px;
      background: #fff;
      box-shadow: 0 15px 36px rgb(15 23 42 / 12%);
    }

    .kotoba-jab-lab-root .code-stage img {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: contain;
      image-rendering: pixelated;
    }

    .kotoba-jab-lab-root .empty-code {
      display: grid;
      max-width: 290px;
      place-items: center;
      gap: 15px;
      color: var(--muted);
      text-align: center;
      font-weight: 800;
      line-height: 1.6;
    }

    .kotoba-jab-lab-root .empty-code-mark {
      display: grid;
      width: 118px;
      aspect-ratio: 1;
      grid-template-columns: repeat(7, 1fr);
      gap: 3px;
      padding: 10px;
      border-radius: 16px;
      background: #eef2ff;
      opacity: .65;
    }

    .kotoba-jab-lab-root .empty-code-mark i { border-radius: 2px; background: #cbd5e1; }
    .kotoba-jab-lab-root .empty-code-mark i:nth-child(5n + 1) { background: #60a5fa; }
    .kotoba-jab-lab-root .empty-code-mark i:nth-child(7n + 2) { background: #facc15; }
    .kotoba-jab-lab-root .empty-code-mark i:nth-child(9n + 3) { background: #f87171; }

    .kotoba-jab-lab-root .code-meta {
      display: flex;
      width: min(100%, 520px);
      justify-content: center;
      gap: 9px;
      flex-wrap: wrap;
    }

    .kotoba-jab-lab-root .meta-chip {
      padding: 7px 11px;
      border-radius: 999px;
      background: #e8eefc;
      color: #34415c;
      font-size: 13px;
      font-weight: 900;
    }

    .kotoba-jab-lab-root .format-chip {
      background: #172554;
      color: #fff;
    }

    .kotoba-jab-lab-root .notice {
      width: 100%;
      padding: 12px 14px;
      border-radius: 13px;
      background: #eff6ff;
      color: #1e40af;
      font-size: 14px;
      font-weight: 800;
      line-height: 1.5;
    }

    .kotoba-jab-lab-root .notice.error { background: #fef2f2; color: #b91c1c; }
    .kotoba-jab-lab-root .notice.ok { background: #ecfdf5; color: #047857; }

    .kotoba-jab-lab-root .camera-placeholder {
      display: grid;
      flex: 1;
      min-height: 360px;
      place-items: center;
      align-content: center;
      gap: 16px;
      border: 2px dashed #a5b4fc;
      border-radius: 20px;
      background: #f5f7ff;
      color: #475569;
      font-size: 20px;
    }

    .kotoba-jab-lab-root .camera-placeholder-icon {
      position: relative;
      display: block;
      width: 86px;
      height: 62px;
      border: 7px solid #64748b;
      border-radius: 15px;
    }

    .kotoba-jab-lab-root .camera-placeholder-icon::before {
      content: "";
      position: absolute;
      left: 50%;
      top: 50%;
      width: 27px;
      aspect-ratio: 1;
      transform: translate(-50%, -50%);
      border: 6px solid #64748b;
      border-radius: 50%;
    }

    .kotoba-jab-lab-root .camera-placeholder-icon::after {
      content: "";
      position: absolute;
      left: 13px;
      top: -18px;
      width: 31px;
      height: 13px;
      border-radius: 6px 6px 0 0;
      background: #64748b;
    }

    .kotoba-jab-lab-root .reader-actions {
      display: flex;
      gap: 11px;
      flex-wrap: wrap;
    }

    .kotoba-jab-lab-root .reader-actions .btn-primary {
      flex-basis: 220px;
    }

    .kotoba-jab-lab-root .image-read-btn {
      flex: 1 1 160px;
    }

    .kotoba-jab-lab-root .video-read-btn {
      flex: 1 1 160px;
    }
    /* 追加: 画像読み取りボタンと同じ見た目に揃える */

    .kotoba-jab-lab-root .btn-checkbox {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 4px 2px;
      color: var(--ink);
      font-weight: 800;
      font-size: 14px;
      cursor: pointer;
      user-select: none;
    }

    .kotoba-jab-lab-root .btn-checkbox input {
      width: 20px;
      height: 20px;
      accent-color: var(--blue);
    }
    /* 追加: 分割送信（点滅コード）の切り替えチェックボックス */

    .kotoba-jab-lab-root .frame-indicator {
      position: absolute;
      top: 12px;
      right: 12px;
      padding: 6px 12px;
      border-radius: 999px;
      background: rgb(23 37 84 / 88%);
      color: #fff;
      font-size: 14px;
      font-weight: 900;
      letter-spacing: .02em;
      z-index: 5;
    }
    /* 追加: 点滅送信中に現在のコマ番号（例: 2/5）を表示するバッジ */

    .kotoba-jab-lab-root .torch-button {
      flex: 0 1 110px;
    }

    .kotoba-jab-lab-root .torch-button.is-active {
      border-color: #f59e0b;
      background: #fef3c7;
      color: #92400e;
      box-shadow: 0 0 0 4px rgb(245 158 11 / 16%);
    }

    .kotoba-jab-lab-root .camera-box {
      position: relative;
      flex: 1;
      overflow: hidden;
      min-height: 360px;
      border-radius: 20px;
      background: #101728;
    }

    .kotoba-jab-lab-root video {
      display: block;
      width: 100%;
      height: 100%;
      min-height: 360px;
      object-fit: cover;
    }

    .kotoba-jab-lab-root .scan-guide {
      position: absolute;
      inset: 50% auto auto 50%;
      width: min(72%, 360px);
      aspect-ratio: 1;
      transform: translate(-50%, -50%);
      border: 4px solid rgb(255 255 255 / 88%);
      border-radius: 20px;
      box-shadow: 0 0 0 999px rgb(2 6 23 / 38%);
      pointer-events: none;
    }

    .kotoba-jab-lab-root .scan-line {
      position: absolute;
      left: 8%;
      right: 8%;
      top: 12%;
      height: 3px;
      border-radius: 99px;
      background: #4ade80;
      box-shadow: 0 0 14px #4ade80;
      animation: scan 2.2s ease-in-out infinite;
    }

    @keyframes scan {
      0%, 100% { top: 12%; }
      50% { top: 86%; }
    }

    .kotoba-jab-lab-root .result-area {
      display: flex;
      flex: 1;
      min-height: 0;
      flex-direction: column;
      gap: 13px;
      width: 100%;
    }

    .kotoba-jab-lab-root .result-area textarea { flex: 1; min-height: 390px; }

    .kotoba-jab-lab-root .fullscreen-stage:fullscreen {
      display: grid;
      width: 100vw;
      height: 100vh;
      place-items: center;
      padding: min(4vw, 30px);
      border: 0;
      border-radius: 0;
      background: #fff;
    }

    .kotoba-jab-lab-root .fullscreen-stage:fullscreen img {
      width: min(94vw, 94vh);
      height: min(94vw, 94vh);
    }

    .kotoba-jab-lab-root .loading {
      position: absolute;
      inset: 0;
      display: grid;
      place-items: center;
      background: rgb(255 255 255 / 88%);
      color: var(--navy);
      font-weight: 900;
      backdrop-filter: blur(4px);
    }

    .kotoba-jab-lab-root .spinner {
      width: 38px;
      aspect-ratio: 1;
      margin: 0 auto 12px;
      border: 4px solid #c7d2fe;
      border-top-color: var(--violet);
      border-radius: 50%;
      animation: spin .8s linear infinite;
    }

    @keyframes spin { to { transform: rotate(360deg); } }

    .kotoba-jab-lab-root .fine-print {
      margin: 0;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.55;
      text-align: center;
    }

    /* 修正: 1180px以下（タブレット〜スマホ全て）で共通して縦スクロールを不要にするための詰め設定。
       以前はタブレット幅(701-1180px)限定だったが、スマホ幅にも広げ、mainの高さはflexで自動計算する方式に変更 */
    @media (max-width: 1180px) {
      .kotoba-jab-lab-root .work,
      .kotoba-jab-lab-root .preview,
      .kotoba-jab-lab-root .reader-side,
      .kotoba-jab-lab-root .result-side {
        gap: 12px;
        padding: 18px;
      }

      .kotoba-jab-lab-root .input-wrap,
      .kotoba-jab-lab-root textarea,
      .kotoba-jab-lab-root .camera-placeholder,
      .kotoba-jab-lab-root .camera-box,
      .kotoba-jab-lab-root video,
      .kotoba-jab-lab-root .result-area textarea {
        min-height: 0; /* 修正: 固定min-heightをやめ、使える高さに合わせて縮められるようにする */
      }

      .kotoba-jab-lab-root .code-stage {
        width: auto;
        height: min(58dvh, 500px);
        max-width: 100%;
      }

      .kotoba-jab-lab-root .fine-print { display: none; }

      .kotoba-jab-lab-root main { padding: 10px 0; }
    }

    @media (max-width: 700px) {
      .kotoba-jab-lab-root .topbar {
        grid-template-columns: 1fr auto;
        gap: 10px;
      }
      .kotoba-jab-lab-root .brand span:last-child { display: none; }
      .kotoba-jab-lab-root .tabs { grid-column: 1 / -1; grid-row: 2; }
      .kotoba-jab-lab-root .tab { min-width: 0; }
      .kotoba-jab-lab-root .header-actions { grid-column: 2; grid-row: 1; }
      .kotoba-jab-lab-root .send-grid,


      .kotoba-jab-lab-root .receive-grid {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr; /* 修正: 上下を残り高さの半分ずつに固定し、はみ出た方だけ内部スクロールさせる */
        min-height: 0;
      }
      .kotoba-jab-lab-root .preview { border-top: 1px solid var(--line); border-left: 0; }
      .kotoba-jab-lab-root .result-side { border-top: 1px solid var(--line); border-left: 0; }
      .kotoba-jab-lab-root .work,

      .kotoba-jab-lab-root .preview,
      .kotoba-jab-lab-root .reader-side,
      .kotoba-jab-lab-root .result-side { padding: 14px; gap: 10px; }
      .kotoba-jab-lab-root .code-stage { width: min(100%, 560px); }
      .kotoba-jab-lab-root main { width: min(100% - 18px, 680px); padding-top: 8px; }
    }

    @media (max-width: 480px) {
      .kotoba-jab-lab-root .topbar { padding: 9px 11px; }
      .kotoba-jab-lab-root .status-pill { padding: 7px 10px; font-size: 11px; }
      .kotoba-jab-lab-root .license-button { padding: 7px 10px; font-size: 11px; }
      .kotoba-jab-lab-root .status-dot { width: 10px; }
      .kotoba-jab-lab-root .panel { border-radius: 20px; }
      .kotoba-jab-lab-root .work,

      .kotoba-jab-lab-root .preview,
      .kotoba-jab-lab-root .reader-side,
      .kotoba-jab-lab-root .result-side { padding: 12px; }
      .kotoba-jab-lab-root .options { align-items: stretch; }
      .kotoba-jab-lab-root .option { flex: 1; justify-content: space-between; }
      .kotoba-jab-lab-root .btn { flex: 1 1 140px; }
      .kotoba-jab-lab-root .code-stage { padding: 10px; border-radius: 17px; }
      .kotoba-jab-lab-root .camera-box,

      .kotoba-jab-lab-root video,
      .kotoba-jab-lab-root .camera-placeholder { min-height: 140px; }
      .kotoba-jab-lab-root .result-area textarea { min-height: 120px; }
      .kotoba-jab-lab-root .input-wrap { min-height: 120px; }
    }

/* 修正: admin-bar表示時は管理バーの高さ分だけアプリの高さを差し引く（幅を問わず常に適用） */
body.admin-bar .kotoba-jab-lab-root .app {
  height: calc(100dvh - 32px);
}

@media (max-width: 782px) {
  body.admin-bar .kotoba-jab-lab-root .app {
    height: calc(100dvh - 46px);
  }
}

/*
 * 画面サイズに関わらず、WordPressテーマ側のヘッダー・余白・フッターの高さに
 * 影響されない全画面領域に固定し、ページ自体の縦スクロールを止めます。
 * 修正: 以前はタブレット幅(701-1180px)限定だったが、スマホ〜デスクトップの全幅で常時ロックするように変更
 */
html.kotoba-jab-lab-viewport-lock,
body.kotoba-jab-lab-viewport-lock {
  width: 100%;
  height: 100%;
  overflow: hidden !important;
  overscroll-behavior: none;
}

body.kotoba-jab-lab-viewport-lock .kotoba-jab-lab-root {
  position: fixed;
  inset: 0;
  z-index: 9990;
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

body.kotoba-jab-lab-viewport-lock .kotoba-jab-lab-root .app {
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  /* 修正: mainはflex:1で残り高さを自動で埋めるため、ここでの固定px計算は不要になった */
}

body.admin-bar.kotoba-jab-lab-viewport-lock .kotoba-jab-lab-root {
  top: 32px;
  height: calc(100% - 32px); /* 修正: topでずらした分だけ高さも差し引く */
}

@media (max-width: 782px) {
  body.admin-bar.kotoba-jab-lab-viewport-lock .kotoba-jab-lab-root {
    top: 46px;
    height: calc(100% - 46px);
  }
}