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

  body {
    display: flex;
    height: 100vh;
    background: var(--c-white);
    color: var(--c-zinc-950);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    overflow: hidden;
  }

  /* ── Chat panel ── */
  #chat-panel {
    width: 340px;
    min-width: 340px;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--c-zinc-200);
    background: var(--c-white);
    transition: width 0.22s ease, min-width 0.22s ease, border-left-width 0.22s ease;
  }
  #chat-panel.collapsed {
    width: 0;
    min-width: 0;
    border-left-width: 0;
    overflow: hidden;
  }

  #chat-header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--c-zinc-200);
    display: flex;
    align-items: center;
    gap: 8px;
  }

  #chat-header .header-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--c-zinc-950);
    letter-spacing: -0.01em;
  }

  #chat-header .header-sub {
    font-size: 12px;
    color: var(--c-zinc-500);
    margin-left: auto;
  }

  #messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    scrollbar-width: thin;
    scrollbar-color: var(--c-zinc-200) transparent;
  }

  #messages::-webkit-scrollbar { width: 4px; }
  #messages::-webkit-scrollbar-track { background: transparent; }
  #messages::-webkit-scrollbar-thumb { background: var(--c-zinc-200); border-radius: 2px; }

  .msg {
    max-width: 85%;
    padding: 9px 12px;
    font-size: 13px;
    line-height: 1.55;
    white-space: pre-wrap;
    word-break: break-word;
  }

  .msg.user {
    background: var(--c-zinc-900);
    color: var(--c-white);
    align-self: flex-end;
    border-radius: 12px 12px 2px 12px;
  }

  .msg.assistant {
    background: var(--c-white);
    border: 1px solid var(--c-zinc-200);
    color: var(--c-zinc-950);
    align-self: flex-start;
    border-radius: 12px 12px 12px 2px;
  }

  /* ── Chat: LLM thinking loader (loader-04 melting drip) ── */
  .chat-thinking-loader {
    align-self: flex-start;
    padding: 10px 14px;
  }
  .chat-thinking-loader .l04-wrap {
    width: 56px;
    height: 72px;
    filter: url(#goo04-chat);
    position: relative;
  }
  .chat-thinking-loader .l04-wrap .body {
    position: absolute;
    left: 50%; top: 4px;
    width: 24px; height: 24px;
    margin-left: -12px;
    background: var(--c-zinc-900);
    border-radius: 50%;
  }
  .chat-thinking-loader .l04-wrap .drop {
    position: absolute;
    left: 50%; top: 16px;
    width: 10px; height: 10px;
    margin-left: -5px;
    background: var(--c-zinc-900);
    border-radius: 50%;
    animation: l04-drip-chat 1.8s cubic-bezier(.6,0,.4,1) infinite;
  }
  @keyframes l04-drip-chat {
    0%   { transform: translateY(0) scale(0.2,0.2); opacity: 0; }
    30%  { transform: translateY(12px) scale(1,1); opacity: 1; }
    70%  { transform: translateY(32px) scale(0.9,1.1); opacity: 1; }
    100% { transform: translateY(52px) scale(0.6,0.6); opacity: 0; }
  }

  .msg.system {
    background: transparent;
    color: var(--c-zinc-500);
    font-size: 11px;
    text-align: center;
    padding: 4px;
    align-self: center;
    max-width: 100%;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .chat-error-detail-btn {
    background: none;
    border: 1px solid var(--c-zinc-400);
    color: var(--c-zinc-400);
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 4px;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .chat-error-detail-btn:hover {
    border-color: var(--c-zinc-500);
    color: var(--c-zinc-500);
  }

  #chat-input-area {
    padding: 12px;
    border-top: 1px solid var(--c-zinc-200);
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--c-zinc-50);
  }

  #quick-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
  }

  .quick-btn {
    background: var(--c-white);
    border: 1px solid var(--c-zinc-200);
    color: var(--c-zinc-500);
    padding: 4px 9px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.1s;
    line-height: 1.4;
  }

  .quick-btn:hover {
    border-color: var(--c-zinc-900);
    color: var(--c-zinc-950);
    background: var(--c-zinc-100);
  }

  #input-row {
    display: flex;
    gap: 8px;
    align-items: flex-end;
  }

  #user-input {
    flex: 1;
    background: var(--c-white);
    border: 1px solid var(--c-zinc-200);
    border-radius: 8px;
    padding: 8px 11px;
    color: var(--c-zinc-950);
    font-size: 13px;
    resize: none;
    outline: none;
    line-height: 1.45;
    font-family: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
  }

  #user-input:focus {
    border-color: var(--c-zinc-900);
    box-shadow: 0 0 0 2px #18181b22;
  }

  #user-input::placeholder { color: var(--c-zinc-400); }

  #send-btn {
    background: var(--c-zinc-900);
    border: none;
    border-radius: 8px;
    width: 36px;
    min-width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
    flex-shrink: 0;
  }

  #send-btn:hover { background: var(--c-zinc-800); }
  #send-btn:disabled { background: var(--c-zinc-400); cursor: default; }
  #send-btn svg { width: 15px; height: 15px; fill: white; }

  #chat-scene-label {
    padding: 6px 12px 4px;
    border-bottom: 1px solid var(--c-zinc-200);
    font-size: 11px;
    color: var(--c-zinc-500);
    display: flex;
    align-items: center;
    gap: 4px;
  }
  #chat-scene-label::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--c-green-500);
    flex-shrink: 0;
  }

  #chat-model-label {
    font-size: 10px;
    color: var(--c-zinc-400);
    text-align: right;
    padding: 4px 4px 0;
    letter-spacing: .02em;
  }

  /* ── 3D Viewport ── */
  #viewport-panel {
    flex: 1;
    min-width: 0;
    min-height: 0;
    display: flex;
    flex-direction: column;
    background: var(--c-zinc-50);
    position: relative;
  }

  #viewport-header {
    padding: 10px 16px;
    border-bottom: 1px solid var(--c-zinc-200);
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--c-white);
  }

  #viewport-header .vp-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--c-zinc-950);
    letter-spacing: -0.01em;
    text-decoration: none;
  }

  #viewport-header .vp-version {
    font-size: 10px;
    font-weight: 400;
    color: var(--c-zinc-400);
    margin-left: 4px;
    letter-spacing: 0;
  }

  .mode-toggle {
    display: inline-flex;
    background: var(--c-zinc-100);
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    padding: 2px;
    gap: 2px;
  }
  .mode-toggle-btn {
    appearance: none;
    border: none;
    background: transparent;
    color: var(--c-zinc-500);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 4px;
    cursor: pointer;
    letter-spacing: -0.01em;
    transition: background 0.1s, color 0.1s;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    line-height: 1;
  }
  .mode-toggle-btn:hover { color: var(--c-zinc-950); }
  .mode-toggle-btn.active {
    background: var(--c-white);
    color: var(--c-zinc-950);
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
  }
  .mode-toggle-icon {
    width: 13px;
    height: 13px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
  }

  .vp-project-name {
    font-size: 12px;
    color: var(--c-zinc-500);
    margin-left: 8px;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  /* ── Home link (← back) ── */
  .home-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    color: var(--c-zinc-500);
    text-decoration: none;
    flex-shrink: 0;
    transition: background 0.1s, border-color 0.1s, color 0.1s;
    margin-right: 4px;
  }
  .home-link:hover { background: var(--c-zinc-100); border-color: var(--c-zinc-400); color: var(--c-zinc-950); }
  .home-link svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  /* ── Save modal hint ── */
  #project-save-hint {
    padding: 8px 20px 16px;
    font-size: 12px;
    color: var(--c-zinc-500);
    display: none;
  }

  #badge-row {
    display: flex;
    gap: 6px;
    margin-left: auto;
    align-items: center;
  }

  #json-panel {
    display: none;
    flex: 1;
    flex-direction: column;
    overflow: hidden;
    background: var(--c-zinc-50);
  }

  #json-panel-inner {
    flex: 1;
    overflow: auto;
    padding: 20px;
  }

  #json-error-bar {
    display: none;
    background: var(--c-red-50);
    border-bottom: 1px solid #fca5a5;
    color: #b91c1c;
    font-size: 12px;
    font-family: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
    padding: 6px 16px;
  }

  #json-content {
    display: block;
    width: 100%;
    height: 100%;
    margin: 0;
    font-family: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
    font-size: 12px;
    line-height: 1.7;
    color: var(--c-zinc-950);
    background: var(--c-white);
    border: 1px solid var(--c-zinc-200);
    border-radius: 8px;
    padding: 16px;
    white-space: pre;
    tab-size: 2;
    box-sizing: border-box;
    resize: none;
    outline: none;
  }

  .info-badge {
    border: 1px solid var(--c-zinc-200);
    border-radius: 9999px;
    font-size: 11px;
    padding: 2px 8px;
    color: var(--c-zinc-500);
    background: var(--c-white);
    white-space: nowrap;
  }

  .toggle-chip {
    border: 1px solid var(--c-zinc-200);
    border-radius: 9999px;
    font-size: 11px;
    padding: 2px 8px;
    background: var(--c-white);
    color: var(--c-zinc-500);
    white-space: nowrap;
    cursor: pointer;
    font-family: inherit;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    user-select: none;
  }
  .toggle-chip.on {
    background: var(--c-zinc-950);
    color: var(--c-white);
    border-color: var(--c-zinc-950);
  }
  .toggle-chip.off {
    background: var(--c-white);
    color: var(--c-zinc-400);
    border-color: var(--c-zinc-200);
    text-decoration: line-through;
  }
  .toggle-chip:hover {
    opacity: 0.8;
  }

  #canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
  }

  canvas { display: block; }

  /* CSS2D label overlay */
  #canvas-container > div:last-of-type {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
  }

  /* CSS2DRenderer element */
  .label-renderer-host {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
  }

  /* CSS2D labels */
  .obj-label {
    font-size: 11px;
    background: rgba(255, 255, 255, 0.65);
    border-radius: 4px;
    padding: 2px 6px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-weight: 500;
    white-space: nowrap;
    pointer-events: none;
    border: none;
  }

  .obj-label.person-label {
    color: #1d4ed8;
  }

  .obj-label.camera-label {
    color: #c2410c;
  }

  .obj-label.object-label {
    color: #15803d;
  }

  .axis-label {
    font-size: 10px;
    color: var(--c-zinc-400);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    pointer-events: none;
    white-space: nowrap;
  }

  /* Notes panel — bottom left */
  /* Controls hint */
  #controls-hint {
    position: absolute;
    bottom: 14px;
    left: 14px;
    font-size: 11px;
    color: var(--c-zinc-400);
    line-height: 1.7;
    pointer-events: none;
  }

  /* View toggle buttons — bottom right, above presets */
  #view-toggles {
    position: absolute;
    bottom: 52px;
    right: 14px;
    display: flex;
    gap: 4px;
  }
  .view-toggle {
    background: var(--c-white);
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    height: 28px;
    padding: 0 8px;
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    font-size: 10px;
    color: var(--c-zinc-400);
    font-family: inherit;
    transition: background 0.1s, border-color 0.1s, color 0.1s;
  }
  .view-toggle:hover { background: var(--c-zinc-100); border-color: var(--c-zinc-400); }
  .view-toggle.active { color: var(--c-zinc-950); border-color: var(--c-zinc-400); }
  .view-toggle.lighting-active { color: #d97706; border-color: #fbbf24; background: #fffbeb; }
  .view-toggle.lighting-active:hover { background: #fef3c7; }
  .view-toggle svg {
    width: 12px;
    height: 12px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  /* Label dropdown */
  .label-toggle-wrap { position: relative; }
  .label-dropdown {
    position: absolute;
    bottom: calc(100% + 6px);
    right: 0;
    background: var(--c-white);
    border: 1px solid var(--c-zinc-200);
    border-radius: 8px;
    padding: 6px 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.10);
    white-space: nowrap;
    z-index: 200;
  }
  .label-dropdown.hidden { display: none; }
  .label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 4px 0;
    font-size: 11px;
    color: var(--c-zinc-700);
  }
  /* Toggle switch */
  .lbl-switch { position: relative; display: inline-block; width: 28px; height: 16px; flex-shrink: 0; }
  .lbl-switch input { opacity: 0; width: 0; height: 0; }
  .lbl-slider {
    position: absolute; inset: 0;
    background: var(--c-zinc-300); border-radius: 16px; cursor: pointer;
    transition: background 0.2s;
  }
  .lbl-slider::before {
    content: ''; position: absolute;
    width: 12px; height: 12px; left: 2px; top: 2px;
    background: var(--c-white); border-radius: 50%;
    transition: transform 0.2s;
  }
  .lbl-switch input:checked + .lbl-slider { background: var(--c-zinc-900); }
  .lbl-switch input:checked + .lbl-slider::before { transform: translateX(12px); }

  /* Camera height label */
  .obj-label.height-label {
    font-size: 10px;
    color: var(--c-zinc-600);
    background: transparent;
    border: none;
    padding: 0;
    border-radius: 0;
    font-family: monospace;
    font-weight: 400;
  }

  /* View preset buttons — bottom right */
  #view-presets {
    position: absolute;
    bottom: 14px;
    right: 14px;
    display: flex;
    gap: 4px;
  }

  .view-btn {
    background: var(--c-white);
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    width: 44px;
    height: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    gap: 2px;
    transition: background 0.1s, border-color 0.1s;
    padding: 0;
  }

  .view-btn:hover {
    background: var(--c-zinc-100);
    border-color: var(--c-zinc-400);
  }

  .view-btn svg {
    width: 13px;
    height: 13px;
    stroke: var(--c-zinc-500);
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .view-btn span {
    font-size: 9px;
    color: var(--c-zinc-500);
    font-family: inherit;
    letter-spacing: 0.03em;
    line-height: 1;
  }

  /* Loading — viewport (loader-09 gooey worm) */
  #loading {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    filter: url(#goo09-vp);
    z-index: 10;
  }
  #loading .s {
    position: absolute;
    top: 50%; left: 50%;
    width: 16px; height: 16px;
    margin: -8px 0 0 -8px;
    background: var(--c-zinc-900);
    border-radius: 50%;
  }
  @keyframes l09-orbit-vp {
    0%   { transform: rotate(0deg)   translateX(37px) scale(0.7); }
    50%  { transform: rotate(180deg) translateX(37px) scale(1.2); }
    100% { transform: rotate(360deg) translateX(37px) scale(0.7); }
  }

  @keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg); } }


  /* ── Object panel ── */
  #object-panel {
    width: 340px;
    min-width: 340px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--c-zinc-200);
    background: var(--c-white);
    overflow: hidden;
    transition: width 0.22s ease, min-width 0.22s ease, border-right-width 0.22s ease;
  }
  #object-panel.collapsed {
    width: 0;
    min-width: 0;
    border-right-width: 0;
  }

  #object-panel-header {
    padding: 6px 8px;
    border-bottom: 1px solid var(--c-zinc-200);
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
    height: 44px;
  }

  /* ── Home icon button (top of object panel) ── */
  #home-icon-btn {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    color: var(--c-zinc-400);
    text-decoration: none;
    flex-shrink: 0;
    transition: background 0.1s, color 0.1s;
  }
  #home-icon-btn:hover { background: var(--c-zinc-100); color: var(--c-zinc-950); }
  #home-icon-btn svg {
    width: 15px;
    height: 15px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  /* ── Project name inline input ── */
  #project-name-field {
    flex: 1;
    min-width: 0;
    border: none;
    outline: none;
    background: transparent;
    font-size: 13px;
    font-weight: 600;
    color: var(--c-zinc-950);
    font-family: inherit;
    padding: 4px 6px;
    border-radius: 5px;
    transition: background 0.1s;
    letter-spacing: -0.01em;
  }
  #project-name-field::placeholder { color: #c4c4c7; font-weight: 400; }
  #project-name-field:hover { background: var(--c-zinc-100); }
  #project-name-field:focus { background: var(--c-zinc-100); }

  /* ── Inline save button ── */
  #project-save-inline-btn {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 6px;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-zinc-300);
    flex-shrink: 0;
    transition: background 0.1s, color 0.1s;
    position: relative;
  }
  #project-save-inline-btn:hover { background: var(--c-zinc-100); color: var(--c-zinc-950); }
  #project-save-inline-btn.dirty { color: var(--c-zinc-900); }
  #project-save-inline-btn.dirty::after {
    content: '';
    position: absolute;
    top: 5px;
    right: 5px;
    width: 5px;
    height: 5px;
    background: var(--c-blue-500);
    border-radius: 50%;
  }
  #project-save-inline-btn svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
  }
  #project-save-inline-btn.saving svg {
    display: none;
  }
  #project-save-inline-btn.saving::before {
    content: '';
    width: 12px;
    height: 12px;
    border: 1.5px solid var(--c-zinc-300);
    border-top-color: var(--c-zinc-900);
    border-radius: 50%;
    box-sizing: border-box;
    animation: spin 0.65s linear infinite;
    flex-shrink: 0;
  }

  /* ── Scene list section ── */
  #scene-list-section {
    border-bottom: 1px solid var(--c-zinc-200);
    flex-shrink: 0;
  }

  #scene-add-btn:disabled { opacity: 0.35; cursor: default; }
  #scene-add-btn:disabled:hover { background: transparent; color: var(--c-zinc-500); border-color: var(--c-zinc-300); }

  #scene-list-section { border-bottom: none; }
  #scene-list-section + .object-panel-sub-header { margin-top: 8px; }

  /* オブジェクト一覧セクションは残り高さを埋め、user-info-btnを下端に押し出す */
  #object-list-section {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
  }

  /* ── Confirm modal ── */
  .confirm-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
  }

  .confirm-modal {
    background: var(--c-white);
    border-radius: 10px;
    padding: 24px 28px 20px;
    width: 420px;
    max-width: calc(100vw - 32px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(0,0,0,0.06);
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .confirm-modal-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--c-zinc-950);
  }

  .confirm-modal-msg {
    font-size: 13px;
    color: var(--c-zinc-500);
    line-height: 1.5;
    margin-bottom: 4px;
  }

  .confirm-modal-btns {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 4px;
  }

  .confirm-modal-cancel {
    padding: 5px 14px;
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    background: var(--c-white);
    color: var(--c-zinc-500);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.1s;
  }
  .confirm-modal-cancel:hover { background: var(--c-zinc-100); }

  .confirm-modal-ok {
    padding: 5px 14px;
    border: 1px solid var(--c-red-500);
    border-radius: 6px;
    background: var(--c-red-500);
    color: var(--c-white);
    font-size: 13px;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.1s, border-color 0.1s;
  }
  .confirm-modal-ok:hover { background: var(--c-red-600); border-color: var(--c-red-600); }

  /* Object type picker */
  .confirm-modal.obj-type-modal {
    width: 680px;
  }
  .obj-type-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
  }
  .obj-type-modal-header .confirm-modal-title {
    margin-bottom: 0;
  }
  .obj-type-modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    color: var(--c-zinc-500);
    padding: 0;
    flex-shrink: 0;
    transition: background 0.1s, color 0.1s;
  }
  .obj-type-modal-close:hover { background: var(--c-zinc-100); color: var(--c-zinc-900); }
  .obj-type-modal-close svg { width: 14px; height: 14px; }
  .obj-type-section {
    margin-top: 12px;
  }
  .obj-type-section-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--c-zinc-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
  }
  .obj-type-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin: 0;
  }
  .obj-type-btn {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 8px;
    border: 1px solid var(--c-zinc-200);
    border-radius: 8px;
    background: var(--c-zinc-50);
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    transition: background 0.1s, border-color 0.1s;
  }
  .obj-type-btn:hover { background: #f0f0f0; border-color: var(--c-zinc-400); }
  .obj-type-thumb {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: var(--c-white);
    border-radius: 6px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .obj-type-thumb img { width: 100%; height: 100%; object-fit: contain; display: block; }
  .obj-type-thumb-empty { background: var(--c-zinc-100); color: var(--c-zinc-400); }
  .obj-type-label { font-size: 12px; font-weight: 500; color: var(--c-zinc-900); padding: 0 2px; }
  .obj-type-key   { font-size: 10px; color: var(--c-zinc-400); font-family: monospace; padding: 0 2px; }
  .obj-type-custom-status {
    font-size: 12px; color: var(--c-zinc-400); padding: 4px 0;
  }
  .obj-type-new-btn {
    text-decoration: none;
    border-style: dashed !important;
    color: var(--c-zinc-500) !important;
  }
  .obj-type-new-btn:hover { background: #f0f0f0 !important; border-color: var(--c-zinc-400) !important; color: var(--c-zinc-900) !important; }
  .obj-type-new-icon { display: flex; align-items: center; justify-content: center; }
  .obj-type-new-icon svg { width: 20px; height: 20px; }

  .confirm-modal-upgrade {
    padding: 5px 14px;
    border: none;
    border-radius: 6px;
    background: var(--c-zinc-950);
    color: var(--c-white);
    font-size: 13px;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: background 0.1s;
  }
  .confirm-modal-upgrade:hover { background: var(--c-zinc-800); }

  /* ── Pose toggle switch ── */
  .toggle-switch {
    position: relative;
    display: inline-flex;
    width: 28px;
    height: 16px;
    flex-shrink: 0;
    cursor: pointer;
  }
  .toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
  }
  .toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--c-zinc-300);
    border-radius: 9999px;
    transition: background 0.2s;
  }
  .toggle-slider::before {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    left: 2px;
    top: 2px;
    background: var(--c-white);
    border-radius: 50%;
    transition: transform 0.2s;
    box-shadow: 0 1px 2px rgba(0,0,0,0.15);
  }
  .toggle-switch input:checked + .toggle-slider { background: var(--c-zinc-900); }
  .toggle-switch input:checked + .toggle-slider::before { transform: translateX(12px); }

  /* ── Section label below header ── */
  .object-panel-sub-header {
    padding: 6px 14px 5px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--c-zinc-400);
    border-bottom: 1px solid var(--c-zinc-200);
    flex-shrink: 0;
  }

  /* ── Readonly like button (bottom of object panel) ── */
  #readonly-like-section {
    padding: 10px 12px;
    border-top: 1px solid var(--c-zinc-200);
    flex-shrink: 0;
  }
  .readonly-like-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--c-zinc-500);
    background: var(--c-zinc-100);
    border: 1px solid var(--c-zinc-200);
    border-radius: 8px;
    padding: 6px 14px;
    cursor: pointer;
    transition: color 0.15s, background 0.15s, border-color 0.15s;
    width: 100%;
    justify-content: center;
  }
  .readonly-like-btn svg {
    width: 14px; height: 14px;
    stroke: currentColor; fill: none;
    stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
    flex-shrink: 0;
  }
  .readonly-like-btn:hover { color: #f43f5e; border-color: #fda4af; background: #fff1f2; }
  .readonly-like-btn.liked { color: #f43f5e; border-color: #fda4af; background: #fff1f2; }
  .readonly-like-btn.liked svg { fill: #f43f5e; }
  .readonly-like-btn:disabled { opacity: 0.5; cursor: not-allowed; }
  .project-info-author-link {
    color: var(--c-zinc-950);
    font-weight: 500;
    text-decoration: none;
    transition: color 0.15s;
  }
  .project-info-author-link:hover { color: var(--c-blue-500); text-decoration: underline; }

  /* ── User info (bottom of object panel) ── */
  #user-info-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-top: 1px solid var(--c-zinc-200);
    text-decoration: none;
    color: var(--c-zinc-950);
    flex-shrink: 0;
    transition: background 0.1s;
  }
  #user-info-btn:hover { background: var(--c-zinc-100); }
  #user-info-btn > svg {
    width: 12px;
    height: 12px;
    stroke: var(--c-zinc-400);
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    margin-left: auto;
    flex-shrink: 0;
  }
  .user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--c-zinc-900);
    color: var(--c-white);
    font-size: 11px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    letter-spacing: 0;
  }
  .user-meta { min-width: 0; }
  .user-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--c-zinc-950);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .user-email {
    font-size: 11px;
    color: var(--c-zinc-400);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  #object-tree {
    flex: 1;
    overflow-y: auto;
    padding: 6px 0;
    scrollbar-width: thin;
    scrollbar-color: var(--c-zinc-200) transparent;
  }
  #object-tree::-webkit-scrollbar { width: 4px; }
  #object-tree::-webkit-scrollbar-track { background: transparent; }
  #object-tree::-webkit-scrollbar-thumb { background: var(--c-zinc-200); border-radius: 2px; }

  .tree-empty {
    padding: 24px 16px;
    font-size: 12px;
    color: var(--c-zinc-400);
    text-align: center;
  }

  /* Category rows (人物, カメラ, …) */
  .tree-cat-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    cursor: pointer;
    user-select: none;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--c-zinc-500);
    transition: background 0.1s;
  }
  .tree-cat-header:hover { background: var(--c-zinc-100); }

  .tree-arrow {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
    transition: transform 0.15s;
    opacity: 0.5;
  }
  .tree-arrow.open { transform: rotate(90deg); }

  .tree-cat-badge {
    margin-left: auto;
    background: var(--c-zinc-100);
    border-radius: 9999px;
    font-size: 10px;
    padding: 1px 6px;
    color: var(--c-zinc-500);
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
  }

  .tree-cat-body { display: none; }
  .tree-cat-body.open { display: block; }

  /* Individual item rows */
  .tree-item-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px 4px 24px;
    cursor: pointer;
    user-select: none;
    font-size: 12px;
    color: var(--c-zinc-950);
    transition: background 0.1s;
  }
  .tree-item-header:hover { background: var(--c-zinc-100); }
  .tree-item-header.tree-sel { background: #dbeafe; }
  .tree-item-header.tree-sel:hover { background: #bfdbfe; }

  .tree-item-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    opacity: 0.6;
  }

  .tree-item-label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .tree-item-body { display: none; }
  .tree-item-body.open { display: block; }

  /* Property rows */
  .tree-prop {
    display: flex;
    align-items: baseline;
    gap: 6px;
    padding: 2px 12px 2px 44px;
    font-size: 11px;
    line-height: 1.7;
  }
  .tree-prop-key {
    color: var(--c-zinc-500);
    flex-shrink: 0;
    min-width: 60px;
  }
  .tree-prop-val {
    color: var(--c-zinc-950);
    font-family: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
    font-size: 11px;
  }
  .tree-prop-input {
    font-family: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
    font-size: 11px;
    color: var(--c-zinc-950);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--c-zinc-300);
    outline: none;
    width: 64px;
    padding: 0 2px;
    line-height: 1.4;
  }
  .tree-prop-input:focus {
    border-bottom-color: var(--c-zinc-900);
    background: var(--c-zinc-100);
    border-radius: 2px 2px 0 0;
  }
  .tree-prop-suffix {
    color: var(--c-zinc-400);
    font-size: 10px;
  }
  .tree-prop-select {
    font-family: inherit;
    font-size: 11px;
    color: var(--c-zinc-950);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--c-zinc-300);
    outline: none;
    cursor: pointer;
    padding: 0 2px;
    max-width: 110px;
  }
  .tree-prop-select:focus { border-bottom-color: var(--c-zinc-900); }

  .tree-cat-add-btn {
    margin-left: 6px;
    width: 18px;
    height: 18px;
    border: 1px solid var(--c-zinc-300);
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-zinc-500);
    padding: 0;
    flex-shrink: 0;
    transition: background 0.1s, color 0.1s, border-color 0.1s;
  }
  .tree-cat-add-btn:hover { background: var(--c-zinc-900); color: var(--c-white); border-color: var(--c-zinc-900); }
  .tree-cat-add-btn svg { width: 10px; height: 10px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; }

  /* ── Sidebar toggle buttons ── */
  .sidebar-toggle-btn {
    background: transparent;
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.1s, border-color 0.1s;
    color: var(--c-zinc-500);
  }
  .sidebar-toggle-btn:hover { background: var(--c-zinc-100); border-color: var(--c-zinc-400); color: var(--c-zinc-950); }
  .sidebar-toggle-btn.hidden-panel { color: var(--c-zinc-400); border-style: dashed; }
  .sidebar-toggle-btn svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }

  /* ── Right panel tabs ── */
  #right-panel-tabs {
    display: flex;
    border-bottom: 1px solid var(--c-zinc-200);
    flex-shrink: 0;
  }
  .rtab {
    flex: 1;
    padding: 7px 0 6px;
    font-size: 0;
    font-family: inherit;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--c-zinc-400);
    cursor: pointer;
    transition: color 0.1s, border-color 0.1s;
    margin-bottom: -1px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
  }
  .rtab svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
  .rtab-label {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    line-height: 1;
  }
  .rtab:hover { color: var(--c-zinc-500); }
  .rtab.active { color: var(--c-zinc-950); border-bottom-color: var(--c-zinc-900); }

  /* ── Tree action buttons (visible/delete) ── */
  .tree-action-btn {
    width: 20px;
    height: 20px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-zinc-400);
    flex-shrink: 0;
    border-radius: 3px;
    transition: color 0.1s, background 0.1s;
  }
  .tree-action-btn:hover { color: var(--c-zinc-950); background: var(--c-zinc-200); }
  .tree-action-btn svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
  .tree-action-btn.hidden-obj { color: var(--c-zinc-300); }
  .tree-action-btn.del-btn:hover { color: var(--c-red-500); background: var(--c-red-50); }

  .rtab-content { display: none; flex: 1; flex-direction: column; min-height: 0; overflow: hidden; }
  .rtab-content.active { display: flex; }

  /* ── Share panel ── */
  #share-panel-inner {
    flex: 1;
    overflow-y: auto;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    scrollbar-width: thin;
    scrollbar-color: var(--c-zinc-200) transparent;
  }
  .share-section { display: flex; flex-direction: column; gap: 8px; }
  .share-section-label { font-size: 11px; font-weight: 600; color: var(--c-zinc-500); text-transform: uppercase; letter-spacing: 0.05em; }
  .share-url-row { display: flex; gap: 6px; align-items: center; }
  #share-url-input {
    flex: 1;
    padding: 7px 9px;
    font-size: 12px;
    font-family: inherit;
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    background: var(--c-zinc-100);
    color: var(--c-zinc-700);
    outline: none;
    min-width: 0;
  }
  #share-copy-btn {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    background: var(--c-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-zinc-600);
    transition: background 0.1s, color 0.1s;
  }
  #share-copy-btn:hover { background: var(--c-zinc-100); color: var(--c-zinc-950); }
  #share-copy-btn svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
  .share-action-btn {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 8px 12px;
    font-size: 12px;
    font-weight: 500;
    font-family: inherit;
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    background: var(--c-white);
    color: var(--c-zinc-700);
    cursor: pointer;
    transition: background 0.1s, color 0.1s;
  }
  .share-action-btn:hover { background: var(--c-zinc-100); color: var(--c-zinc-950); }
  .share-action-btn svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

  /* Share toggle */
  .share-toggle-row {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    padding: 6px 0;
    font-size: 12px; color: var(--c-zinc-700);
  }
  .share-hint {
    font-size: 11px; color: var(--c-zinc-400); line-height: 1.5; margin-top: 2px;
  }
  .share-likes-count {
    font-size: 13px; font-weight: 600; color: var(--c-zinc-950); margin-bottom: 8px;
  }
  .share-likes-list {
    display: flex; flex-direction: column; gap: 2px;
  }
  .share-liker-item {
    display: flex; align-items: center; gap: 8px;
    padding: 4px 6px; border-radius: 6px;
    text-decoration: none; color: var(--c-zinc-950);
    transition: background 0.12s;
  }
  .share-liker-item:hover { background: var(--c-zinc-100); }
  .share-liker-icon {
    width: 24px; height: 24px; border-radius: 50%;
    background: var(--c-zinc-900); color: var(--c-white);
    font-size: 11px; font-weight: 600;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
  }
  .share-liker-name { font-size: 12px; }
  .share-likes-empty {
    font-size: 12px; color: var(--c-zinc-400); padding: 2px 0;
  }

  /* ── Settings panel ── */
  #settings-panel-inner {
    flex: 1;
    overflow-y: auto;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    scrollbar-width: thin;
    scrollbar-color: var(--c-zinc-200) transparent;
  }
  .settings-section { display: flex; flex-direction: column; gap: 8px; }
  .settings-section-label { font-size: 10px; font-weight: 600; color: var(--c-zinc-400); text-transform: uppercase; letter-spacing: 0.07em; }
  .settings-row {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    padding: 6px 0;
    font-size: 12px; color: var(--c-zinc-700);
    border-bottom: 1px solid var(--c-zinc-100);
  }
  .settings-row:last-child { border-bottom: none; }
  .settings-row-label { flex: 1; min-width: 0; }

  /* Project info section — pinned to bottom of settings panel */
  #project-info-section { margin-top: auto; }

  /* Project info rows */
  .project-info-row {
    display: flex; align-items: baseline; justify-content: space-between; gap: 8px;
    padding: 5px 0;
    font-size: 12px; color: var(--c-zinc-700);
    border-bottom: 1px solid var(--c-zinc-100);
  }
  .project-info-row:last-child { border-bottom: none; }
  .project-info-key { color: var(--c-zinc-500); white-space: nowrap; flex-shrink: 0; }
  .project-info-val { text-align: right; word-break: break-all; color: var(--c-zinc-900); }
  .project-info-id { font-family: monospace; font-size: 10px; color: var(--c-zinc-400); }
  .project-info-fork-link { color: var(--c-blue-500); text-decoration: none; font-size: 12px; }
  .project-info-fork-link:hover { text-decoration: underline; }

  /* Readonly badge */
  .readonly-badge {
    display: inline-block;
    font-size: 10px; font-weight: 600; letter-spacing: 0.04em;
    color: var(--c-white); background: var(--c-zinc-500);
    padding: 2px 8px; border-radius: 4px; margin-left: 8px;
    vertical-align: middle;
  }

  /* Publish badge */
  .publish-badge {
    display: inline-block;
    font-size: 10px; font-weight: 600; letter-spacing: 0.04em;
    color: var(--c-white); background: var(--c-blue-500);
    padding: 2px 8px; border-radius: 4px; margin-left: 6px;
    vertical-align: middle;
  }

  /* Use-project fork button (readonly mode) */
  #use-project-btn {
    display: inline-flex; align-items: center;
    padding: 4px 10px; border-radius: 6px; border: none;
    background: var(--c-zinc-900); color: var(--c-white); cursor: pointer;
    font-size: 11px; font-weight: 600; margin-left: 8px;
    vertical-align: middle; flex-shrink: 0;
    transition: background 0.1s;
  }
  #use-project-btn:hover { background: var(--c-zinc-700); }
  #use-project-btn:disabled { opacity: 0.6; cursor: not-allowed; }

  /* Use-project tab panel */
  #use-project-panel-inner {
    flex: 1;
    overflow-y: auto;
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .use-project-intro-title {
    font-size: 13px; font-weight: 600; color: var(--c-zinc-950); margin-bottom: 6px;
  }
  .use-project-intro-desc {
    font-size: 12px; color: var(--c-zinc-500); line-height: 1.6;
  }
  .fork-action-btn {
    display: flex; align-items: center; gap: 8px; justify-content: center;
    padding: 10px 16px; border-radius: 8px; border: none;
    background: var(--c-zinc-900); color: var(--c-white); cursor: pointer;
    font-size: 13px; font-weight: 600;
    transition: background 0.1s;
  }
  .fork-action-btn:hover { background: var(--c-zinc-700); }
  .fork-action-btn:disabled { opacity: 0.6; cursor: not-allowed; }
  .fork-action-btn svg {
    width: 14px; height: 14px; stroke: currentColor; fill: none;
    stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
    flex-shrink: 0;
  }
  .use-project-hint {
    font-size: 11px; color: var(--c-red-500); text-align: center; min-height: 16px;
  }
  .use-project-info-section { margin-top: auto; }

  /* Fork banner (owned forked project) */
  #fork-banner {
    padding: 6px 14px;
    background: #f0f9ff;
    border-bottom: 1px solid #bae6fd;
    font-size: 11px; color: #0369a1;
    display: flex; align-items: center; gap: 6px;
    flex-shrink: 0;
  }
  #fork-banner svg {
    width: 12px; height: 12px; stroke: currentColor; fill: none;
    stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
    flex-shrink: 0;
  }
  #fork-banner a { color: #0284c7; text-decoration: none; margin-left: auto; }
  #fork-banner a:hover { text-decoration: underline; }

  /* Reset button (readonly mode) */
  #project-reset-btn {
    display: flex; align-items: center; justify-content: center;
    width: 28px; height: 28px; border: none; border-radius: 6px;
    background: transparent; color: var(--c-zinc-500); cursor: pointer;
    flex-shrink: 0; transition: background 0.1s, color 0.1s;
  }
  #project-reset-btn:hover { background: var(--c-zinc-100); color: var(--c-zinc-900); }
  #project-reset-btn svg { width: 15px; height: 15px; fill: currentColor; }

  /* Readonly mode overrides */
  .readonly-mode .tree-cat-add-btn { display: none !important; }
  .readonly-mode .del-btn { display: none !important; }
  .readonly-mode .tree-item-label { pointer-events: none; }

  /* ── Camera previews ── */
  #camera-previews {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scrollbar-width: thin;
    scrollbar-color: var(--c-zinc-200) transparent;
  }
  .cam-preview-wrap {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .cam-preview-connect {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    top: 20px; /* below the label */
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(9,9,11,0.55);
    border-radius: 6px;
    cursor: pointer;
    border: none;
    transition: background 0.15s;
  }
  .cam-preview-connect:hover { background: rgba(9,9,11,0.72); }
  .cam-preview-connect svg { width: 26px; height: 26px; stroke: var(--c-zinc-400); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; transition: stroke 0.15s; }
  .cam-preview-connect:hover svg { stroke: var(--c-white); }
  .cam-preview-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--c-zinc-500);
    letter-spacing: 0.04em;
  }
  .cam-preview-canvas {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: block;
    border-radius: 6px;
    border: 1px solid var(--c-zinc-200);
    background: var(--c-zinc-950);
    transition: border-color 0.15s, box-shadow 0.15s;
  }
  .cam-preview-wrap.selected .cam-preview-canvas {
    border-color: #60a5fa;
    box-shadow: 0 0 0 2px #3b82f6aa;
  }
  .cam-preview-wrap.selected .cam-preview-label {
    color: var(--c-blue-500);
  }
  .cam-preview-save {
    position: absolute;
    right: 6px;
    bottom: 6px;
    width: 26px;
    height: 26px;
    border: none;
    border-radius: 5px;
    background: rgba(9,9,11,0.55);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.15s, background 0.15s;
  }
  .cam-preview-wrap:hover .cam-preview-save { opacity: 1; }
  .cam-preview-save:hover { background: rgba(9,9,11,0.85); }
  .cam-preview-save svg { width: 14px; height: 14px; stroke: var(--c-white); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
  .cam-preview-empty {
    font-size: 12px;
    color: var(--c-zinc-400);
    text-align: center;
    padding: 24px 0;
  }

  /* ── Generic modal overlay (used by publish-confirm-modal etc.) ── */
  .modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 9999;
    align-items: center;
    justify-content: center;
  }
  .modal-overlay.open { display: flex; }

  .modal-box {
    background: var(--c-white);
    border: 1px solid var(--c-zinc-200);
    border-radius: 14px;
    padding: 24px;
    max-width: 360px;
    width: calc(100% - 32px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  }
  .modal-box-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--c-zinc-950);
    margin-bottom: 6px;
  }
  .modal-box-desc {
    font-size: 13px;
    color: var(--c-zinc-500);
    line-height: 1.5;
    margin-bottom: 16px;
  }
  .modal-box-input {
    width: 100%;
    padding: 8px 10px;
    font-size: 13px;
    border: 1px solid var(--c-zinc-200);
    border-radius: 8px;
    outline: none;
    margin-bottom: 8px;
    box-sizing: border-box;
    font-family: inherit;
    transition: border-color 0.15s;
  }
  .modal-box-input:focus { border-color: var(--c-zinc-400); }
  .modal-box-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 8px;
  }
  .modal-btn {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid var(--c-zinc-200);
    background: var(--c-white);
    color: var(--c-zinc-950);
    font-family: inherit;
    transition: background 0.15s;
  }
  .modal-btn:hover { background: var(--c-zinc-100); }
  .modal-btn-primary {
    background: var(--c-zinc-950);
    color: var(--c-white);
    border-color: var(--c-zinc-950);
  }
  .modal-btn-primary:hover { background: var(--c-zinc-800); }
  .modal-btn-primary:disabled { background: var(--c-zinc-400); border-color: var(--c-zinc-400); cursor: not-allowed; }

  /* ── Floor plan settings buttons ── */
  .fp-btn {
    font-size: 11px;
    padding: 3px 10px;
    border: 1px solid var(--c-zinc-200);
    border-radius: 5px;
    background: var(--c-white);
    color: var(--c-zinc-700);
    cursor: pointer;
    white-space: nowrap;
    font-family: inherit;
    line-height: 1.6;
  }
  .fp-btn:hover { background: var(--c-zinc-100); }
  .fp-btn-add { color: var(--c-blue-600); border-color: #bfdbfe; background: var(--c-blue-50); }
  .fp-btn-add:hover { background: #dbeafe; }
  .fp-btn-del { color: var(--c-red-500); border-color: var(--c-red-200); background: #fff5f5; }
  .fp-btn-del:hover { background: #fee2e2; }
  .fp-state-label { font-size: 12px; color: var(--c-zinc-400); }
  .fp-filename {
    font-size: 11px; color: var(--c-zinc-600);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    max-width: 110px;
  }

  /* ── Floor plan modal ── */
  .fp-modal-box {
    max-width: 600px;
    width: calc(100vw - 32px);
  }
  .fp-canvas-wrap {
    margin: 12px 0;
    border: 1px solid var(--c-zinc-200);
    border-radius: 8px;
    overflow: hidden;
    cursor: grab;
    user-select: none;
    touch-action: none;
  }
  .fp-canvas-wrap:active { cursor: grabbing; }
  #fp-canvas { display: block; width: 100%; height: auto; }
  .fp-controls { display: flex; gap: 16px; margin-bottom: 6px; }
  .fp-control-col { flex: 1; display: flex; flex-direction: column; gap: 4px; }
  .fp-control-label { font-size: 11px; color: var(--c-zinc-500); }
  .fp-control-row { display: flex; align-items: center; gap: 6px; }
  .fp-control-row input[type="range"] { flex: 1; accent-color: var(--c-zinc-950); cursor: pointer; }
  .fp-num-input {
    width: 46px; flex-shrink: 0;
    padding: 2px 4px;
    font-size: 12px; font-family: inherit;
    border: 1px solid var(--c-zinc-200); border-radius: 4px;
    text-align: right; outline: none;
    -moz-appearance: textfield;
  }
  .fp-num-input::-webkit-inner-spin-button,
  .fp-num-input::-webkit-outer-spin-button { -webkit-appearance: none; }
  .fp-num-input:focus { border-color: var(--c-zinc-400); }
  .fp-control-unit { font-size: 11px; color: var(--c-zinc-400); flex-shrink: 0; }
  .fp-modal-desc { font-size: 11px; color: var(--c-zinc-400); line-height: 1.6; margin-bottom: 4px; }
  .fp-hint { font-size: 11px; color: var(--c-zinc-400); text-align: center; margin-bottom: 12px; }

  /* ── Project modal ── */
  #project-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 100;
    align-items: center;
    justify-content: center;
  }
  #project-modal-overlay.open { display: flex; }

  #project-modal {
    background: var(--c-white);
    border: 1px solid var(--c-zinc-200);
    border-radius: 12px;
    width: 420px;
    max-width: calc(100vw - 32px);
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  }

  #project-modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--c-zinc-200);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  #project-modal-header .modal-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--c-zinc-950);
    flex: 1;
  }
  #project-modal-close {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--c-zinc-500);
    padding: 2px;
    display: flex;
    align-items: center;
    border-radius: 4px;
    transition: color 0.1s, background 0.1s;
  }
  #project-modal-close:hover { color: var(--c-zinc-950); background: var(--c-zinc-100); }
  #project-modal-close svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; }

  #project-save-area {
    padding: 16px 20px;
    border-bottom: 1px solid var(--c-zinc-200);
    display: flex;
    gap: 8px;
  }
  #project-name-input {
    flex: 1;
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    padding: 7px 10px;
    font-size: 13px;
    font-family: inherit;
    color: var(--c-zinc-950);
    outline: none;
    transition: border-color 0.15s;
  }
  #project-name-input:focus { border-color: var(--c-zinc-900); }
  #project-name-input::placeholder { color: var(--c-zinc-400); }

  #project-save-btn {
    background: var(--c-zinc-900);
    color: var(--c-white);
    border: none;
    border-radius: 6px;
    padding: 7px 14px;
    font-size: 13px;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s;
  }
  #project-save-btn:hover { background: var(--c-zinc-800); }
  #project-save-btn:disabled { background: var(--c-zinc-400); cursor: default; }

  #project-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
    scrollbar-width: thin;
    scrollbar-color: var(--c-zinc-200) transparent;
  }
  #project-list::-webkit-scrollbar { width: 4px; }
  #project-list::-webkit-scrollbar-thumb { background: var(--c-zinc-200); border-radius: 2px; }

  .project-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    cursor: pointer;
    transition: background 0.1s;
  }
  .project-item:hover { background: var(--c-zinc-100); }

  .project-item-info { flex: 1; min-width: 0; }
  .project-item-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--c-zinc-950);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .project-item-date {
    font-size: 11px;
    color: var(--c-zinc-400);
    margin-top: 2px;
  }
  .project-item-del {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--c-zinc-300);
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    transition: color 0.1s, background 0.1s;
  }
  .project-item-del:hover { color: var(--c-red-500); background: var(--c-red-50); }
  .project-item-del svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; }

  .project-list-empty {
    padding: 32px 20px;
    text-align: center;
    font-size: 12px;
    color: var(--c-zinc-400);
  }

  /* ── Responsive: narrow window ── */
  @media (max-width: 768px) {
    body {
      flex-direction: column;
      overflow: hidden;
    }

    /* 3Dビューを先頭に、パネルを末尾に並べ替え */
    #viewport-panel {
      order: 0;
      flex: 1;
      min-height: 0;
      width: 100%;
    }

    #object-panel {
      order: 1;
      display: flex;
      width: 100% !important;
      min-width: unset !important;
      flex: 0 0 45vh;
      min-height: 200px;
      border-right: none;
      border-top: 1px solid var(--c-zinc-200);
      overflow-y: auto;
      transition: none;
    }

    #object-panel.collapsed {
      display: none !important;
      overflow: hidden;
    }

    #chat-panel {
      order: 1;
      width: 100% !important;
      min-width: unset !important;
      flex: 0 0 45vh;
      min-height: 200px;
      border-left: none;
      border-top: 1px solid var(--c-zinc-200);
      transition: none;
    }

    #chat-panel.collapsed {
      display: none !important;
      overflow: hidden;
    }

    /* ボタン群を少し上にシフト（モバイルで下部が隠れるのを防ぐ） */
    #view-presets {
      bottom: 44px;
    }

    #view-toggles {
      bottom: 82px;
    }
  }

  /* ── Viewer mode panel ── */
  #viewer-panel {
    width: 50%;
    min-width: 280px;
    display: none;
    flex-direction: column;
    border-left: 1px solid var(--c-zinc-200);
    background: var(--c-white);
  }
  body.is-viewer #viewer-panel { display: flex; }
  body.is-viewer #chat-panel { display: none !important; }
  body.is-viewer #viewport-header #toggle-right-btn { display: none !important; }
  body.is-viewer #object-list-section { display: none !important; }
  body.is-viewer #user-info-btn { display: none !important; }
  body.is-viewer #scene-list .tree-action-btn { display: none !important; }
  body.is-viewer #scene-add-btn { display: none !important; }
  body.is-viewer #readonly-like-section { display: none !important; }

  /* ── Scene/Storyboard view toggle (viewer mode only) ── */
  #scene-view-toggle-wrap { display: none; padding: 8px 12px; border-bottom: 1px solid var(--c-zinc-200); }
  body.is-viewer #scene-view-toggle-wrap { display: block; }
  .scene-view-toggle {
    display: inline-flex;
    width: 100%;
    background: var(--c-zinc-100);
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    padding: 2px;
    gap: 2px;
    box-sizing: border-box;
  }
  .svt-btn {
    appearance: none;
    border: none;
    background: transparent;
    flex: 1;
    height: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    color: var(--c-zinc-500);
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: -0.01em;
    transition: background 0.1s, color 0.1s;
  }
  .svt-btn:hover { color: var(--c-zinc-950); }
  .svt-btn.active {
    background: var(--c-white);
    color: var(--c-zinc-950);
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
  }

  /* ── Storyboard panel ── */
  #storyboard-panel { display: none; flex-direction: column; background: var(--c-zinc-50); min-width: 0; min-height: 0; overflow: hidden; }
  body.is-viewer.is-storyboard #storyboard-panel { display: flex; }
  body.is-viewer.is-storyboard #canvas-container { display: none !important; }
  body.is-viewer.is-storyboard #viewer-panel { display: none !important; }
  @media (min-width: 769px) {
    body.is-viewer.is-storyboard {
      grid-template-columns: auto 1fr;
      grid-template-areas:
        "object header"
        "object storyboard";
    }
    body.is-viewer.is-storyboard > #storyboard-panel { grid-area: storyboard; }
  }
  #storyboard-content {
    flex: 1;
    overflow: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .sb-empty { color: var(--c-zinc-400); font-size: 12px; padding: 24px; text-align: center; }
  .sb-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--c-white);
    border: 1px solid var(--c-zinc-200);
    border-radius: 8px;
    padding: 12px 14px;
    width: max-content;
    min-width: 100%;
    box-sizing: border-box;
  }
  .sb-row-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--c-zinc-900);
    letter-spacing: -0.01em;
  }
  .sb-row-num {
    color: var(--c-zinc-400);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
  }
  .sb-row-cams {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 12px;
    padding-bottom: 4px;
  }
  .sb-row-empty { color: var(--c-zinc-400); font-size: 11px; padding: 8px 0; }
  .sb-cam {
    flex: 0 0 auto;
    width: 240px;
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .sb-cam-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--c-zinc-600);
    letter-spacing: -0.01em;
  }
  .sb-cam-canvas {
    width: 100%;
    aspect-ratio: 16 / 9;
    height: auto;
    background: var(--c-zinc-900);
    border-radius: 4px;
    display: block;
  }
  .sb-cam-canvas.sb-cam-canvas-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-zinc-100);
    color: var(--c-zinc-400);
    font-size: 12px;
  }
  #storyboard-header {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 8px 16px 0;
    flex-shrink: 0;
  }
  .sb-cam-comment {
    display: none;
    font-size: 11px;
    color: var(--c-zinc-600);
    white-space: pre-wrap;
    word-break: break-word;
    padding: 6px 8px;
    background: var(--c-zinc-100);
    border-radius: 4px;
    line-height: 1.4;
  }
  body.is-sb-comment .sb-cam-comment { display: block; }
  body.is-sb-comment .sb-cam-comment:empty { display: none; }

  /* 3DViewの左上に現在のシーン名を表示（編集/閲覧 共通） */
  #viewer-scene-name {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    padding: 5px 10px;
    font-size: 12px;
    font-weight: 600;
    color: var(--c-zinc-900);
    letter-spacing: -0.01em;
    pointer-events: none;
    max-width: 60%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    z-index: 5;
  }
  #viewer-scene-name:empty { display: none; }
  #viewer-scene-name .vsn-num {
    color: var(--c-zinc-400);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
    margin-right: 8px;
    letter-spacing: 0.02em;
  }
  #viewer-scene-name .vsn-name { color: var(--c-zinc-900); }

  /* シーン一覧の番号バッジ */
  .scene-item-num {
    font-size: 10px;
    font-weight: 500;
    color: var(--c-zinc-400);
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
    margin-right: 4px;
    flex-shrink: 0;
  }
  .tree-item-header.tree-sel .scene-item-num { color: var(--c-zinc-500); }

  /* 閲覧モード（PC）: ヘッダを3D+カメラ映像の全幅に拡張し、ヘッダ下を左右分割 */
  @media (min-width: 769px) {
    body.is-viewer {
      display: grid;
      grid-template-columns: auto 1fr 1fr;
      grid-template-rows: auto 1fr;
      grid-template-areas:
        "object header header"
        "object viewport viewer";
      min-height: 0;
    }
    body.is-viewer > #object-panel { grid-area: object; min-height: 0; }
    body.is-viewer > #viewport-panel { display: contents; }
    body.is-viewer #viewport-header { grid-area: header; }
    body.is-viewer #canvas-container { grid-area: viewport; min-width: 0; min-height: 0; }
    body.is-viewer > #viewer-panel {
      grid-area: viewer;
      width: auto;
      min-width: 0;
      min-height: 0;
    }
  }

  #viewer-panel-header {
    padding: 10px 16px;
    border-bottom: 1px solid var(--c-zinc-200);
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--c-white);
  }
  .viewer-panel-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--c-zinc-950);
    letter-spacing: -0.01em;
  }
  .viewer-layout-toggle {
    display: inline-flex;
    margin-left: auto;
    background: var(--c-zinc-100);
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    padding: 2px;
    gap: 2px;
  }
  .vlt-btn {
    appearance: none;
    border: none;
    background: transparent;
    width: 28px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    color: var(--c-zinc-500);
    cursor: pointer;
    transition: background 0.1s, color 0.1s;
  }
  .vlt-btn:hover { color: var(--c-zinc-950); }
  .vlt-btn.active {
    background: var(--c-white);
    color: var(--c-zinc-950);
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
  }
  .vlt-btn svg { width: 13px; height: 13px; fill: currentColor; }

  #viewer-camera-host {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    background: var(--c-zinc-50);
  }
  #viewer-camera-host #camera-previews { flex: 1; }
  #camera-previews.layout-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-rows: max-content;
    align-content: start;
    gap: 12px;
  }
  #camera-previews.layout-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  @media (max-width: 900px) {
    #camera-previews.layout-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  }
  @media (max-width: 600px) {
    #camera-previews.layout-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  }

  /* Camera preview media wrapper (introduced for list view layout) */
  .cam-preview-media { position: relative; display: flex; flex-direction: column; gap: 4px; }
  .cam-preview-comment {
    display: none;
    width: 100%;
    min-height: 80px;
    padding: 8px 10px;
    border: 1px solid var(--c-zinc-200);
    border-radius: 6px;
    font-family: inherit;
    font-size: 12px;
    color: var(--c-zinc-900);
    background: var(--c-white);
    resize: vertical;
    box-sizing: border-box;
    outline: none;
    transition: border-color 0.1s, box-shadow 0.1s;
  }
  .cam-preview-comment::placeholder { color: var(--c-zinc-400); }
  .cam-preview-comment:focus { border-color: var(--c-blue-500); box-shadow: 0 0 0 2px #3b82f622; }
  .cam-preview-comment.is-readonly {
    border: none;
    background: transparent;
    padding: 4px 2px;
    min-height: 0;
    resize: none;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--c-zinc-700);
    line-height: 1.5;
  }

  /* List layout: 2x2 grid (label+canvas on left, comment on right aligned to canvas height) */
  #camera-previews.layout-list .cam-preview-wrap {
    display: grid;
    grid-template-columns: 45% 1fr;
    grid-template-rows: auto auto;
    column-gap: 12px;
    row-gap: 4px;
    align-items: stretch;
  }
  #camera-previews.layout-list .cam-preview-media { display: contents; }
  #camera-previews.layout-list .cam-preview-label { grid-column: 1; grid-row: 1; }
  #camera-previews.layout-list .cam-preview-canvas { grid-column: 1; grid-row: 2; align-self: start; }
  #camera-previews.layout-list .cam-preview-save {
    position: static;
    grid-column: 1;
    grid-row: 2;
    align-self: end;
    justify-self: end;
    margin: 0 6px 6px 0;
  }
  #camera-previews.layout-list .cam-preview-comment {
    display: block;
    grid-column: 2;
    grid-row: 2;
    align-self: stretch;
    height: auto;
    min-height: 0;
    resize: none;
  }

  /* Camera tab header (edit mode) — holds the comment-mode toggle */
  .cam-tab-header {
    display: flex;
    justify-content: flex-end;
    padding: 8px 12px 0;
  }
  .cam-comment-toggle {
    width: 28px;
    height: 28px;
    border: 1px solid var(--c-zinc-200);
    border-radius: 5px;
    background: var(--c-white);
    color: var(--c-zinc-500);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
  }
  .cam-comment-toggle:hover { background: var(--c-zinc-100); color: var(--c-zinc-900); }
  .cam-comment-toggle.active {
    background: var(--c-zinc-900);
    color: var(--c-white);
    border-color: var(--c-zinc-900);
  }
  .cam-comment-toggle svg { width: 14px; height: 14px; }

  /* Comment mode: widen right panel and place comment beside each preview */
  body.is-comment-mode #chat-panel:not(.collapsed) {
    width: 640px;
    min-width: 640px;
  }
  body.is-comment-mode #camera-previews .cam-preview-wrap {
    display: grid;
    grid-template-columns: 45% 1fr;
    grid-template-rows: auto auto;
    column-gap: 12px;
    row-gap: 4px;
    align-items: stretch;
  }
  body.is-comment-mode #camera-previews .cam-preview-media { display: contents; }
  body.is-comment-mode #camera-previews .cam-preview-label { grid-column: 1; grid-row: 1; }
  body.is-comment-mode #camera-previews .cam-preview-canvas { grid-column: 1; grid-row: 2; align-self: start; }
  body.is-comment-mode #camera-previews .cam-preview-save {
    position: static;
    grid-column: 1;
    grid-row: 2;
    align-self: end;
    justify-self: end;
    margin: 0 6px 6px 0;
  }
  body.is-comment-mode #camera-previews .cam-preview-comment {
    display: block;
    grid-column: 2;
    grid-row: 2;
    align-self: stretch;
    height: auto;
    min-height: 0;
    resize: none;
  }

  /* 狭幅: 上下スタック化、グリッド/一覧で映像高さが変化しないよう統一 */
  @media (max-width: 768px) {
    #viewer-panel {
      width: 100% !important;
      min-width: 0 !important;
      flex: 1 1 0;
      min-height: 0;
      border-left: none;
      border-top: 1px solid var(--c-zinc-200);
    }
    body.is-viewer #viewer-panel { order: 2; }
    body.is-viewer #viewport-panel { order: 0; flex: 1 1 0; min-height: 0; }
    /* モバイル閲覧モード時は左パネルを非表示（PC のみ表示）*/
    body.is-viewer #object-panel { display: none !important; }
    body.is-viewer #viewport-header #toggle-left-btn { display: none !important; }
  }

  /* 狭幅: viewport-header の収まり調整（要素幅ベース） */
  #viewport-header.is-narrow {
    padding: 10px 10px;
    gap: 8px;
  }
  #viewport-header #toggle-left-btn,
  #viewport-header #toggle-right-btn,
  #viewport-header .mode-toggle,
  #viewport-header #badge-row {
    flex-shrink: 0;
  }
  #viewport-header.is-narrow #badge-row { gap: 4px; }
  #viewport-header.is-narrow .mode-toggle-btn { padding: 4px 7px; }
  #viewport-header.is-narrow .mode-toggle-label { display: none; }
  #viewport-header.is-narrow #publish-badge { display: none !important; }

  /* ── Export PDF: header button (viewer mode only) ── */
  #export-pdf-btn { display: none; }
  body.is-viewer #export-pdf-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    padding: 0;
    border-radius: 6px;
    border: 1px solid var(--c-zinc-200);
    background: var(--c-white);
    color: var(--c-zinc-700);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
  }
  body.is-viewer #export-pdf-btn:hover { background: var(--c-zinc-100); border-color: var(--c-zinc-400); }
  #export-pdf-btn svg { width: 16px; height: 16px; }

  /* ── Export PDF: modal ── */
  .export-modal-box {
    max-width: 920px;
    width: calc(100vw - 32px);
    max-height: calc(100vh - 32px);
    display: flex;
    flex-direction: column;
    padding: 16px 16px 14px;
  }
  .export-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
  }
  .export-modal-close {
    width: 26px; height: 26px; padding: 0;
    border: 1px solid var(--c-zinc-200); border-radius: 6px;
    background: var(--c-white); color: var(--c-zinc-600); cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center;
  }
  .export-modal-close:hover { background: var(--c-zinc-100); }
  .export-modal-close svg { width: 12px; height: 12px; }
  .export-modal-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--c-zinc-200);
    margin-bottom: 10px;
  }
  .export-layout-toggle { display: inline-flex; gap: 4px; padding: 3px; background: var(--c-zinc-100); border-radius: 8px; }
  .elt-btn {
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 600;
    border: none;
    background: transparent;
    color: var(--c-zinc-600);
    border-radius: 6px;
    cursor: pointer;
    font-family: inherit;
  }
  .elt-btn.active { background: var(--c-white); color: var(--c-zinc-950); box-shadow: 0 1px 2px rgba(0,0,0,0.06); }
  .export-options { display: inline-flex; gap: 12px; align-items: center; }
  .export-opt {
    display: inline-flex; gap: 5px; align-items: center;
    font-size: 12px; color: var(--c-zinc-700); cursor: pointer; user-select: none;
  }
  .export-opt input { accent-color: var(--c-zinc-950); cursor: pointer; }

  .export-preview-wrap {
    position: relative;
    flex: 1;
    min-height: 280px;
    max-height: 60vh;
    overflow: auto;
    background: var(--c-zinc-200);
    border-radius: 8px;
    padding: 16px;
  }
  .export-preview-wrap > .export-print-area { margin: 0 auto; }
  .export-loading {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(228,228,231,0.85);
    color: var(--c-zinc-600);
    font-size: 13px;
    z-index: 2;
  }

  /* ── Export PDF: print area ("page" simulation in modal, real page on print) ──
     寸法は @page の余白(12mm)を引いた実印刷領域と一致させる。
     A4縦: 210-24 = 186mm 幅, 297-24 = 273mm 高
     A4横: 297-24 = 273mm 幅, 210-24 = 186mm 高
     これによりモーダル上の1ページ＝印刷1ページが厳密に一致し、
     ページ切れ目で次のページ内容が侵入する問題を防ぐ。 */
  .export-print-area { display: flex; flex-direction: column; gap: 16px; }
  .ep-page {
    background: var(--c-white);
    width: 186mm;
    height: 273mm;        /* 固定高でオーバーフローを可視化 */
    margin: 0 auto;       /* 横スクロールが発生しても中央寄せ */
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    padding: 8mm 10mm;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 4mm;
    overflow: hidden;     /* 溢れた分は印刷でも切る（次ページ侵入を防止） */
    page-break-after: always;
    break-after: page;
    page-break-inside: avoid;
    break-inside: avoid;
  }
  .export-print-area.is-landscape .ep-page {
    width: 273mm;
    height: 186mm;
  }
  .ep-scene-head {
    display: flex; align-items: baseline; gap: 10px;
    border-bottom: 2px solid var(--c-zinc-950);
    padding-bottom: 6px;
  }
  .ep-scene-num { font-size: 14px; font-weight: 700; color: var(--c-zinc-950); letter-spacing: 0.05em; }
  .ep-scene-name { font-size: 16px; font-weight: 600; color: var(--c-zinc-950); }
  .ep-scene-head-lg .ep-scene-num { font-size: 18px; }
  .ep-scene-head-lg .ep-scene-name { font-size: 22px; }

  .ep-cams { display: flex; gap: 12px; }
  .ep-cams-flex { flex-wrap: wrap; }
  .ep-cams-flex .ep-card { width: calc((100% - 24px) / 3); }
  .ep-cams-grid { flex-wrap: wrap; }
  .ep-cams-grid .ep-card { width: calc((100% - 12px) / 2); }
  .ep-cams-sub { flex-wrap: wrap; margin-top: 6px; }
  .ep-cams-sub .ep-card { width: calc((100% - 24px) / 3); }

  .ep-card {
    display: flex; flex-direction: column; gap: 4px;
    border: 1px solid var(--c-zinc-300); border-radius: 6px; padding: 6px;
    background: var(--c-white);
    page-break-inside: avoid;
    break-inside: avoid;
  }
  .ep-card-img {
    width: 100%; aspect-ratio: 16 / 9;
    background: var(--c-zinc-900); border-radius: 4px; object-fit: cover; display: block;
  }
  .ep-card-img-placeholder { background: var(--c-zinc-200); }
  .ep-card-scene { font-size: 10px; font-weight: 600; color: var(--c-zinc-500); letter-spacing: 0.04em; }
  .ep-cam-label { font-size: 11px; font-weight: 600; color: var(--c-zinc-900); }
  .ep-cam-comment {
    font-size: 10px; color: var(--c-zinc-700);
    border-left: 2px solid var(--c-zinc-300); padding-left: 6px;
    white-space: pre-wrap; line-height: 1.4;
  }

  .ep-scene-main { display: flex; flex-direction: column; gap: 8px; }
  .ep-scene-main-img {
    width: 100%; aspect-ratio: 16 / 9; object-fit: cover;
    border-radius: 6px; background: var(--c-zinc-900); display: block;
  }
  .ep-scene-main-meta { display: flex; flex-direction: column; gap: 6px; }
  .ep-scene-main-meta .ep-cam-label { font-size: 14px; }
  .ep-scene-main-meta .ep-cam-comment { font-size: 12px; }

  .ep-empty { color: var(--c-zinc-400); font-size: 12px; text-align: center; padding: 24px 0; }

  /* ── Print rules ── */
  @media print {
    @page { size: A4 portrait; margin: 12mm; }
    body.is-exporting .export-print-area.is-landscape { /* 横向き指定時 */ }
    body.is-exporting * { visibility: hidden !important; }
    body.is-exporting #export-pdf-modal,
    body.is-exporting #export-pdf-modal * { visibility: visible !important; }
    body.is-exporting #export-pdf-modal {
      position: static !important;
      background: var(--c-white) !important;
      display: block !important;
      inset: auto !important;
    }
    body.is-exporting #export-pdf-modal .modal-box {
      box-shadow: none !important; border: none !important;
      max-width: none !important; width: 100% !important;
      max-height: none !important; padding: 0 !important;
    }
    body.is-exporting .export-modal-head,
    body.is-exporting .export-modal-toolbar,
    body.is-exporting .modal-box-actions,
    body.is-exporting #export-pdf-loading { display: none !important; }
    body.is-exporting .export-preview-wrap {
      max-height: none !important; overflow: visible !important;
      background: var(--c-white) !important; padding: 0 !important;
      border-radius: 0 !important;
    }
    body.is-exporting .ep-page {
      box-shadow: none !important;
      /* 寸法は mm 指定のまま維持（@page と一致するため余白は @page 側で確保） */
      page-break-after: always;
    }
    body.is-exporting .ep-page:last-child { page-break-after: auto; }
    body.is-exporting .export-print-area { gap: 0 !important; }
  }
  body.is-exporting .export-print-area.is-landscape ~ * { /* placeholder */ }
  /* 横向き指定時の @page をJSで切り替えるのが理想だが、シンプルに利用者の印刷ダイアログで向きを選んでもらう運用 */
/* ── Inline → class utilities (phase1) ── */
.gallery-link-mute { color: var(--c-zinc-400); }
.publish-confirm-hint { font-size:11px; color:var(--c-red-500); min-height:16px; margin-top:4px; }
.svg-defs { position:absolute; }