:root {
    --bg1: #f5f6fa;
    --bg2: #eceff5;
    --ink: #1f2a44;
    --muted: #6b7280;
    --panel: #ffffff;
    --ui-scale: 1;
    --canvas-base-width: 960px;
    --canvas-base-height: 540px;
    --app-topbar-h: 52px;
    --app-bottombar-h: 38px;
    --app-rail-w: 52px;
    --app-panel-w: 286px;
    --app-dock-w: calc(var(--app-rail-w) + var(--app-panel-w));
  }

  * { box-sizing: border-box; }

  body {
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--ink);
    background: linear-gradient(180deg, var(--bg1), var(--bg2));
    user-select: none;
    touch-action: manipulation;
    zoom: var(--ui-scale);
  }

  .topbar {
    position: fixed;
    z-index: 60;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    align-items: center;
    width: min(1320px, calc(100vw - 20px));
    padding: 10px 12px;
    border: 1px solid rgba(17,24,39,.09);
    border-radius: 10px;
    background: var(--panel);
    box-shadow: 0 10px 24px rgba(17,24,39,.08);
    backdrop-filter: blur(6px);
  }

  .topbar.app-topbar {
    top: 0;
    left: 0;
    right: 0;
    transform: none;
    width: 100%;
    max-width: none;
    min-height: var(--app-topbar-h);
    padding: 8px 16px 8px 14px;
    border-radius: 0;
    border: none;
    border-bottom: 1px solid rgba(15, 23, 42, 0.35);
    background: linear-gradient(135deg, #312e81 0%, #1e40af 45%, #1e293b 100%);
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.25);
    gap: 12px;
  }

  .app-topbar-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    flex: 0 0 auto;
  }

  .topbar.app-topbar .status strong {
    color: #f8fafc;
  }

  .topbar.app-topbar .status span {
    color: rgba(226, 232, 240, 0.88);
  }

  .app-topbar-status {
    flex: 1 1 220px;
    min-width: 0;
  }

  .topbar.app-topbar button {
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.35);
  }

  .topbar.app-topbar .secondary-btn,
  .topbar.app-topbar .gallery-topbar-link {
    color: #0f172a;
    background: rgba(248, 250, 252, 0.92);
    border: 1px solid rgba(248, 250, 252, 0.35);
  }

  .topbar.app-topbar .secondary-btn:hover,
  .topbar.app-topbar .gallery-topbar-link:hover {
    background: #fff;
  }

  .topbar.app-topbar .app-logout-btn:not([hidden]) {
    color: #7f1d1d;
    background: rgba(254, 226, 226, 0.96);
    border-color: rgba(185, 28, 28, 0.28);
  }

  .topbar.app-topbar .app-logout-btn:not([hidden]):hover {
    background: #fecaca;
  }

  .topbar.app-topbar .buy-access-btn {
    color: #14532d;
    background: rgba(220, 252, 231, 0.96);
    border: 1px solid rgba(22, 101, 52, 0.25);
    font-weight: 900;
  }

  .topbar.app-topbar .buy-access-btn:hover {
    background: #bbf7d0;
  }

  .topbar.app-topbar .ask-toggle {
    color: #e2e8f0;
    background: rgba(15, 23, 42, 0.35);
    border: 1px solid rgba(248, 250, 252, 0.12);
  }

  .topbar.app-topbar .ask-toggle.is-on {
    color: #fff;
    background: #2563eb;
    border-color: rgba(255, 255, 255, 0.25);
  }

  .app-topbar-meter {
    margin-left: auto;
    background: rgba(15, 23, 42, 0.35);
  }

  .app-connectivity-badge {
    flex: 0 0 auto;
    margin-left: 8px;
    padding: 5px 11px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-radius: 999px;
    border: 1px solid rgba(248, 250, 252, 0.2);
    box-shadow: 0 1px 6px rgba(15, 23, 42, 0.35);
    white-space: nowrap;
  }

  .app-connectivity-badge.is-online {
    color: #ecfdf5;
    background: rgba(22, 163, 74, 0.55);
    border-color: rgba(187, 247, 208, 0.35);
  }

  .app-connectivity-badge.is-offline {
    color: #fffbeb;
    background: rgba(217, 119, 6, 0.65);
    border-color: rgba(253, 230, 138, 0.45);
  }

  .app-bottombar {
    position: fixed;
    z-index: 45;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: var(--app-bottombar-h);
    padding: 6px 16px;
    font-size: 11px;
    color: var(--muted);
    background: rgba(248, 250, 252, 0.94);
    border-top: 1px solid rgba(17, 24, 39, 0.08);
    pointer-events: none;
  }

  .app-bottombar-hint {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .app-bottombar-badge {
    flex: 0 0 auto;
    padding: 3px 8px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 10px;
    color: var(--ink);
    background: rgba(15, 23, 42, 0.06);
  }

  button {
    border: 0;
    border-radius: 10px;
    padding: 9px 12px;
    font-weight: 800;
    color: white;
    background: #2563eb;
    box-shadow: 0 3px 10px rgba(37,99,235,.22);
    cursor: pointer;
    flex: 0 0 auto;
  }

  .secondary-btn {
    color: var(--ink);
    background: rgba(15,23,42,.08);
    box-shadow: none;
  }

  .status {
    display: grid;
    gap: 2px;
    min-width: 0;
  }

  .ask-toggle {
    color: var(--ink);
    background: rgba(15,23,42,.08);
    box-shadow: none;
  }

  .ask-toggle.is-on {
    color: #fff;
    background: #2563eb;
    box-shadow: 0 10px 24px rgba(37,99,235,.24);
  }

  .status strong {
    font-size: 14px;
    line-height: 1.2;
  }

  .status span {
    font-size: 12px;
    color: var(--muted);
    white-space: nowrap;
    overflow: visible;
    text-overflow: ellipsis;
  }

  .meter {
    margin-left: auto;
    width: 132px;
    height: 12px;
    overflow: visible;
    border-radius: 999px;
    background: rgba(15,23,42,.1);
    flex: 0 0 auto;
  }

  .meter-fill {
    width: 0%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #22c55e, #eab308, #ef4444);
    transition: width 90ms linear;
  }

  .stage {
    position: relative;
    width: 100vw;
    height: 100vh;
    background:
      linear-gradient(180deg, rgba(255,255,255,.42), rgba(255,255,255,.42)),
      linear-gradient(180deg, var(--bg1), var(--bg2));
  }

  .recording-area-shell {
    position: fixed;
    z-index: 1;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    pointer-events: none;
    max-width: calc(100vw - 32px);
  }

  .recording-area {
    position: fixed;
    z-index: 20;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: clamp(203px, calc((100vw - 650px) * 0.75), var(--canvas-base-width));
    aspect-ratio: 16 / 9;
    height: auto;
    max-height: min(var(--canvas-base-height), calc((100vh - 190px) * 0.75));
    border: 1px solid rgba(17,24,39,.12);
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 24px 48px rgba(17,24,39,.14), 0 1px 0 rgba(255,255,255,.72) inset;
    pointer-events: none;
    overflow: hidden;
    flex-shrink: 0;
  }

  body:has(.topbar.app-topbar) .recording-area {
    max-height: min(
      var(--canvas-base-height),
      calc((100vh - var(--app-topbar-h) - var(--app-bottombar-h) - 96px) * 0.75)
    );
  }

  body:has(.topbar.app-topbar):has(.cards-layer.app-workbench) .recording-area {
    --stage-pad-x: 40px;
    --stage-pad-y: 28px;
    --avail-w: calc(100vw - var(--app-dock-w) - var(--stage-pad-x));
    --avail-h: calc(100vh - var(--app-topbar-h) - var(--app-bottombar-h) - var(--stage-pad-y));
    left: calc(var(--app-dock-w) + var(--avail-w) / 2);
    top: calc(var(--app-topbar-h) + var(--avail-h) / 2);
    transform: translate(-50%, -50%);
    width: min(
      var(--canvas-base-width),
      calc(var(--avail-w) * 0.98),
      calc(var(--avail-h) * 0.98 * 16 / 9)
    );
    max-width: none;
    height: auto;
    max-height: min(var(--canvas-base-height), calc(var(--avail-h) * 0.98));
    aspect-ratio: 16 / 9;
  }

  .scene-props-layer {
    position: absolute;
    inset: 0;
    z-index: 8;
    pointer-events: auto;
    overflow: visible;
  }

  .scene-prop {
    position: absolute;
    transform-origin: center bottom;
    cursor: grab;
    user-select: none;
    touch-action: none;
    filter: drop-shadow(0 10px 14px rgba(15, 23, 42, .12));
  }

  .scene-prop:not(.on-stage) {
    display: none;
  }

  .scene-prop:active {
    cursor: grabbing;
  }

  .scene-prop.is-selected {
    outline: 2px solid rgba(37, 99, 235, .85);
    outline-offset: 2px;
    border-radius: 8px;
  }

  .scene-prop.has-physics.is-selected {
    outline-color: rgba(13, 148, 136, .9);
  }

  .prop-physics-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 700;
    color: var(--muted);
    cursor: pointer;
  }

  .prop-physics-label input {
    cursor: pointer;
  }

  .prop-physics-select {
    width: 100%;
    max-width: 100%;
    padding: 6px 8px;
    border-radius: 8px;
    border: 1px solid rgba(17, 24, 39, 0.14);
    background: var(--panel);
    color: inherit;
    font: inherit;
    font-size: 12px;
  }

  .scene-prop img {
    display: block;
    width: 100%;
    height: auto;
    max-height: min(55vh, 420px);
    object-fit: contain;
    pointer-events: none;
  }

  .card-props {
    max-height: min(58vh, 520px);
  }

  /* Props roster must not use flex:1 shrink-to-zero inside a max-height .tool-card (same bug would hide character rosters). */
  .roster-scroll.roster-scroll--props {
    flex: 0 0 auto !important;
    flex-shrink: 0 !important;
    min-height: 140px !important;
    max-height: min(40vh, 300px);
    overflow-y: auto;
  }

  .card-props .prop-gallery-panel {
    flex: 0 0 auto;
    flex-shrink: 0;
    margin: 4px 0 10px;
    padding: 8px 8px 6px;
    border-radius: 12px;
    border: 1px solid rgba(37, 99, 235, 0.22);
    background: rgba(239, 246, 255, 0.72);
  }

  .prop-gallery-hint {
    margin: 0 0 6px;
    font-size: 11px;
    line-height: 1.35;
  }

  .prop-gallery-empty {
    grid-column: 1 / -1;
    padding: 10px 8px;
    font-size: 11px;
    line-height: 1.4;
    text-align: center;
    border-radius: 10px;
    border: 1px dashed rgba(17, 24, 39, 0.16);
    background: rgba(255, 255, 255, 0.65);
  }

  .card-props .prop-roster-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }

  .card-props .prop-toggle {
    height: 92px;
    padding: 5px;
  }

  .card-props .prop-toggle img {
    width: 52px;
    height: 52px;
    object-fit: contain;
    object-position: center center;
  }

  .prop-gallery-item {
    position: relative;
    min-width: 0;
    height: 92px;
  }

  .prop-gallery-item .prop-toggle {
    width: 100%;
    height: 100%;
    box-sizing: border-box;
  }

  .prop-gallery-delete {
    position: absolute;
    top: 3px;
    right: 3px;
    z-index: 3;
    width: 24px;
    height: 24px;
    padding: 0;
    margin: 0;
    display: grid;
    place-items: center;
    border: none;
    border-radius: 0;
    background: transparent;
    color: #b91c1c;
    cursor: pointer;
    line-height: 0;
    box-shadow: none;
    filter: drop-shadow(0 1px 1px rgba(255, 255, 255, 0.85));
  }

  .prop-gallery-delete:hover {
    background: transparent;
    color: #7f1d1d;
  }

  .prop-gallery-delete:focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 1px;
  }

  .prop-gallery-delete svg {
    display: block;
    width: 12px;
    height: 12px;
  }

  .background-thumbnails {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 8px;
    max-width: min(760px, calc(100vw - 56px));
    overflow-x: auto;
    padding: 6px 4px 8px;
    pointer-events: auto;
    -webkit-overflow-scrolling: touch;
    position: relative;
    z-index: 25;
  }

  .background-thumb {
    flex: 0 0 auto;
    width: 72px;
    height: 44px;
    border-radius: 10px;
    border: 2px solid rgba(15, 23, 42, .12);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    cursor: pointer;
    padding: 0;
    background-color: rgba(255, 255, 255, .72);
    box-shadow: 0 2px 8px rgba(31, 41, 55, .1);
    transition: border-color 0.12s ease, box-shadow 0.12s ease;
  }

  .background-thumb:hover {
    border-color: rgba(37, 99, 235, .45);
  }

  .background-thumb.is-active {
    border-color: #2563eb;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, .22);
  }
.recording-area.recording {
    border-color: rgba(239, 68, 68, .72);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.45), 0 20px 70px rgba(239,68,68,.14);
  }
  body.hide-recording-area-pointer,
  body.hide-recording-area-pointer * {
    cursor: none !important;
  }

  .record-pointer {
    position: fixed;
    z-index: 80;
    left: 0;
    top: 0;
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: rgba(15, 23, 42, .42);
    box-shadow: 0 0 0 1px rgba(255,255,255,.72);
    opacity: 1;
    pointer-events: none;
    transform: translate(-50%, -50%);
  }
.background-image-layer {
    position: absolute;
    inset: 0;
    z-index: 1;
    opacity: var(--background-opacity, .82);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    pointer-events: none;
    transform-origin: center center;
    transform: scale(var(--background-zoom, 1));
    transition: transform .22s ease;
  }

  .recording-area.ken-burns .background-image-layer {
    animation: background-ken-burns 14s ease-in-out infinite alternate;
  }

  @keyframes background-ken-burns {
    0% {
      transform: translate(-2%, -1.3%) scale(calc(var(--background-zoom, 1) * 1.02));
    }
    100% {
      transform: translate(2.2%, 1.4%) scale(calc(var(--background-zoom, 1) * 1.12));
    }
  }

  .background-image-layer.empty {
    background-image:
      radial-gradient(circle at 50% 50%, rgba(255,255,255,.6), rgba(255,255,255,0) 55%),
      linear-gradient(135deg, rgba(254,247,237,.68), rgba(239,246,255,.68));
  }

  .stage-subtitle {
    position: absolute;
    left: 50%;
    bottom: 12px;
    transform: translateX(-50%);
    max-width: calc(100% - 38px);
    padding: 5px 10px;
    border-radius: 8px;
    color: #fff;
    background: rgba(15, 23, 42, .58);
    font-size: 0.82rem;
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
    opacity: 0;
    transition: opacity .15s ease;
    pointer-events: none;
    z-index: 6;
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .stage-subtitle.is-visible {
    opacity: 1;
  }

  .character {
    z-index: 30;
  }

  .cards-layer {
    position: fixed;
    z-index: 50;
    left: 16px;
    right: 16px;
    top: 68px;
    bottom: 70px;
    pointer-events: none;
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: stretch;
  }

  .cards-layer.app-workbench {
    left: 0;
    right: auto;
    top: var(--app-topbar-h);
    bottom: var(--app-bottombar-h);
    width: auto;
    justify-content: flex-start;
    align-items: stretch;
    gap: 0;
  }

  .app-rail {
    flex: 0 0 var(--app-rail-w);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 0;
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    border-right: 1px solid rgba(255, 255, 255, 0.07);
    box-shadow: 4px 0 16px rgba(15, 23, 42, 0.14);
    pointer-events: auto;
  }

  .app-rail-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    color: rgba(226, 232, 240, 0.88);
    text-decoration: none;
    transition: background 0.12s ease, color 0.12s ease;
  }

  .app-rail-link:hover,
  .app-rail-link:focus-visible {
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
    outline: none;
  }

  .app-rail-link.is-active {
    color: #fff;
    background: rgba(249, 115, 22, 0.42);
    box-shadow: inset 0 0 0 1px rgba(251, 146, 60, 0.5);
  }

  .app-panel-wrap {
    display: flex;
    flex-direction: column;
    flex: 0 0 auto;
    min-height: 0;
    max-height: 100%;
    align-self: stretch;
    height: 100%;
    pointer-events: auto;
  }

  .panel-column.panel-column-unified {
    width: 286px;
    flex: 1 1 auto;
    min-height: 0;
    max-height: 100%;
    overflow: hidden;
    padding: 8px;
  }

  .app-panel-scroll {
    overflow-x: hidden;
    overflow-y: auto;
    flex: 1 1 auto;
    min-height: 0;
    max-height: 100%;
    -webkit-overflow-scrolling: touch;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  @media (min-width: 1181px) {
    .cards-layer.app-workbench .panel-column.app-panel-scroll:not(.app-panel-tabbed) > .tool-card {
      overflow: visible;
      flex-shrink: 0;
      max-height: none;
    }

    .cards-layer.app-workbench .panel-column.app-panel-scroll:not(.app-panel-tabbed) > .card-recording,
    .cards-layer.app-workbench .panel-column.app-panel-scroll:not(.app-panel-tabbed) > .card-story,
    .cards-layer.app-workbench .panel-column.app-panel-scroll:not(.app-panel-tabbed) > .card-characters,
    .cards-layer.app-workbench .panel-column.app-panel-scroll:not(.app-panel-tabbed) > .card-backgrounds {
      max-height: none;
    }

    .cards-layer.app-workbench .panel-column.app-panel-scroll:not(.app-panel-tabbed) > .card-characters {
      max-height: none;
    }

    .cards-layer.app-workbench .panel-column.app-panel-scroll:not(.app-panel-tabbed) > .card-backgrounds {
      height: auto;
      max-height: none;
    }

    .cards-layer.app-workbench .panel-column.app-panel-scroll:not(.app-panel-tabbed) > .card-props {
      max-height: none;
    }

    .cards-layer.app-workbench .card-characters .character-roster-grid {
      gap: 9px;
    }

    .cards-layer.app-workbench .card-characters .character-toggle {
      height: 122px;
      padding: 8px;
      border-radius: 12px;
    }

    .cards-layer.app-workbench .card-characters .character-toggle img {
      width: 76px;
      height: 102px;
    }

    .cards-layer.app-workbench .card-characters .character-toggle span {
      font-size: 10px;
      bottom: 4px;
    }

    .cards-layer.app-workbench .card-characters .roster-scroll--characters {
      min-height: 210px;
      max-height: min(58vh, 460px);
    }

    .app-panel-scroll.app-panel-tabbed {
      overflow: hidden;
      gap: 0;
    }

    .app-panel-scroll.app-panel-tabbed > .tool-card {
      display: none !important;
      flex: none !important;
    }

    .app-panel-scroll.app-panel-tabbed > .tool-card.is-tab-panel-active {
      display: flex !important;
      flex-direction: column;
      flex: 1 1 auto !important;
      min-height: 0 !important;
      overflow-x: hidden !important;
      overflow-y: auto !important;
      max-height: none !important;
    }

    .app-panel-scroll.app-panel-tabbed > #panel-chat.is-tab-panel-active {
      overflow-y: hidden !important;
      overflow-x: hidden !important;
    }
  }

  .ui-card {
    color: var(--ink);
    font-size: 12px;
    padding: 10px;
    border-radius: 10px;
    background: #fff;
    border: 1px solid rgba(17, 24, 39, .08);
    box-shadow: 0 6px 16px rgba(17,24,39,.07);
    backdrop-filter: none;
  }

  .panel-column {
    pointer-events: none;
    width: 286px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 10px;
    min-height: 0;
    padding: 10px;
    border-radius: 12px;
    background: rgba(255,255,255,.92);
    border: 1px solid rgba(17,24,39,.08);
    box-shadow: 0 10px 24px rgba(17,24,39,.06);
  }

  .tool-card {
    position: relative;
    z-index: 41;
    width: 100%;
    display: flex;
    flex-direction: column;
    pointer-events: auto;
    overflow-x: hidden;
    overflow-y: auto;
  }

  .card-recording,
  .card-story,
  .card-characters,
  .card-backgrounds {
    max-height: calc(50vh - 6px);
  }

  .card-characters {
    max-height: min(38vh, 420px);
  }

  .card-backgrounds {
    height: 100vh;
    max-height: 100vh;
  }

  .tool-card strong {
    display: block;
    margin-bottom: 7px;
    font-size: 13px;
  }

  .control-row {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 8px;
    align-items: center;
  }

  .tool-card button {
    padding: 7px 9px;
    border-radius: 10px;
    font-size: 11px;
    box-shadow: none;
  }

  .card-recording .record-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    min-height: 34px;
    padding: 6px 8px;
    line-height: 0;
  }

  .card-recording .record-icon-btn svg {
    display: block;
    flex-shrink: 0;
  }

  .card-recording .record-icon-btn--start {
    color: #dc2626;
  }

  .card-recording .record-icon-btn--pause .record-icon-svg--resume {
    display: none;
  }

  .card-recording .record-icon-btn--pause.is-showing-resume .record-icon-svg--pause {
    display: none;
  }

  .card-recording .record-icon-btn--pause.is-showing-resume .record-icon-svg--resume {
    display: block;
  }

  .tool-card .story-api-row input[type="url"] {
    flex: 1;
    min-width: 0;
    padding: 6px 8px;
    border-radius: 8px;
    border: 1px solid rgba(15, 23, 42, .15);
    font-size: 11px;
    font-family: inherit;
  }

  .tool-card #storyPrompt {
    display: block;
    width: 100%;
    box-sizing: border-box;
    margin: 6px 0 8px;
    padding: 8px;
    border-radius: 10px;
    border: 1px solid rgba(15, 23, 42, .15);
    font-size: 11px;
    font-family: inherit;
    line-height: 1.35;
    resize: vertical;
    min-height: 56px;
  }

  .tool-card #generatePropPrompt {
    display: block;
    width: 100%;
    box-sizing: border-box;
    margin: 6px 0 8px;
    padding: 10px 10px;
    border-radius: 10px;
    border: 1px solid rgba(15, 23, 42, 0.15);
    font-size: 12px;
    font-family: inherit;
    line-height: 1.45;
    resize: vertical;
    min-height: 104px;
    flex: 0 0 auto;
    flex-shrink: 0;
  }

  #panel-chat.hint-chat {
    display: flex;
    flex-direction: column;
    min-height: 0;
    gap: 0;
    padding-bottom: 4px;
  }

  .chat-panel-head {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    margin: 0 0 8px;
  }

  .chat-panel-head .chat-panel-title {
    margin: 0;
  }

  .chat-panel-head .secondary {
    flex: 0 0 auto;
  }

  .chat-panel-title {
    flex: 0 0 auto;
    margin: 0 0 8px;
  }

  .chat-log {
    flex: 1 1 auto;
    min-height: 120px;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    margin: 0 0 8px;
    padding: 8px 8px 10px;
    border-radius: 10px;
    border: 1px solid rgba(15, 23, 42, 0.1);
    background: rgba(248, 250, 252, 0.95);
    text-align: left;
    font-size: 13px;
    line-height: 1.45;
    -webkit-overflow-scrolling: touch;
  }

  .chat-log:empty::before {
    content: "Messages appear here after you send.";
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-style: italic;
    line-height: 1.4;
  }

  .chat-msg {
    margin-bottom: 10px;
    padding: 8px 10px;
    border-radius: 10px;
    background: #fff;
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  }

  .chat-msg:last-child {
    margin-bottom: 2px;
  }

  .chat-msg--user {
    border-left: 3px solid rgba(37, 99, 235, 0.65);
  }

  .chat-msg--assistant {
    border-left: 3px solid rgba(13, 148, 136, 0.65);
  }

  .chat-msg__who {
    font-size: 11px;
    font-weight: 800;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin-bottom: 4px;
  }

  .chat-msg__text {
    color: var(--ink);
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .chat-composer {
    flex: 0 0 auto;
    margin-top: auto;
    position: sticky;
    bottom: 0;
    padding-top: 8px;
    padding-bottom: 2px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, #fff 12px);
  }

  @media (min-width: 1181px) {
    .cards-layer.app-workbench .app-panel-scroll.app-panel-tabbed > #panel-chat.is-tab-panel-active .chat-composer {
      position: fixed;
      left: calc(var(--app-rail-w) + 8px);
      width: calc(286px - 16px);
      bottom: calc(var(--app-bottombar-h) + env(safe-area-inset-bottom, 0px));
      z-index: 52;
      padding: 10px 10px 12px;
      margin-top: 0;
      background: #fff;
      border: 1px solid rgba(17, 24, 39, 0.12);
      border-radius: 12px 12px 0 0;
      box-shadow: 0 -8px 24px rgba(15, 23, 42, 0.1);
      box-sizing: border-box;
    }

    .cards-layer.app-workbench .app-panel-scroll.app-panel-tabbed > #panel-chat.is-tab-panel-active .chat-log {
      margin-bottom: 0;
      padding-bottom: calc(188px + env(safe-area-inset-bottom, 0px));
    }
  }

  .hint-chat #chatInput {
    display: block;
    width: 100%;
    box-sizing: border-box;
    margin: 0 0 8px;
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid rgba(15, 23, 42, .15);
    font-size: 13px;
    font-weight: 400;
    font-family: inherit;
    line-height: 1.5;
    resize: vertical;
    min-height: 44px;
    max-height: 120px;
  }

  .tool-card button.secondary {
    color: var(--ink);
    background: rgba(15,23,42,.08);
  }

  .tool-card button.danger {
    background: #ef4444;
    color: white;
  }

  .tool-card button:disabled {
    opacity: .48;
    cursor: not-allowed;
  }

  .tool-card input[type="file"] {
    width: 100%;
    font-size: 11px;
  }

  .tool-card input[type="range"] {
    width: 100%;
  }

  .tool-card label {
    display: block;
    width: 100%;
    color: var(--muted);
    font-size: 11px;
    font-weight: 700;
    margin-top: 4px;
  }

  .note {
    display: none !important;
  }

  .tool-card .gen-progress-wrap {
    margin-top: 8px;
    margin-bottom: 4px;
  }

  .tool-card .gen-progress-wrap[hidden] {
    display: none !important;
  }

  .tool-card .gen-progress-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
    font-size: 11px;
    font-weight: 700;
    color: var(--muted);
  }

  .tool-card .gen-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(37, 99, 235, 0.22);
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: gen-spin 0.75s linear infinite;
    flex-shrink: 0;
  }

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

  .tool-card .gen-progress-track {
    height: 4px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.08);
    overflow: hidden;
  }

  .tool-card .gen-progress-bar {
    height: 100%;
    width: 38%;
    border-radius: inherit;
    background: linear-gradient(90deg, #2563eb, #60a5fa);
    animation: gen-indeterminate 1.15s ease-in-out infinite;
  }

  @keyframes gen-indeterminate {
    0% {
      transform: translateX(-100%);
    }
    100% {
      transform: translateX(320%);
    }
  }

  .tool-card button.is-generating {
    opacity: 0.88;
  }

  .tool-card .note {
    display: block !important;
    color: var(--muted);
    line-height: 1.35;
    margin-top: 6px;
  }

  .tool-card .subtle {
    color: var(--muted);
    font-size: 11px;
    font-weight: 700;
  }

  .tool-card .scale-readout {
    min-width: 48px;
    text-align: right;
    color: var(--ink);
    font-weight: 800;
    font-size: 11px;
  }

  .tool-card a {
    display: none;
    margin-top: 8px;
    color: #2563eb;
    font-weight: 700;
    text-decoration: none;
  }

  .tool-card a.ready {
    display: inline-block;
  }

  .card-backgrounds textarea {
    width: 100%;
    resize: vertical;
    min-height: 48px;
    margin: 4px 0 8px;
    border-radius: 10px;
    border: 1px solid rgba(15,23,42,.15);
    font-size: 11px;
    padding: 7px 8px;
    font-family: inherit;
  }

  .background-tuning-row {
    align-items: center;
    gap: 6px;
  }

  .background-tuning-row label {
    width: auto;
    margin: 0;
    white-space: nowrap;
  }

  .background-tuning-row input[type="range"] {
    flex: 1;
    min-width: 0;
  }

  .roster-scroll {
    flex: 1 1 0;
    min-height: 0;
    max-height: min(42vh, 260px);
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding-right: 2px;
    margin-bottom: 2px;
    scrollbar-gutter: stable;
  }

  .roster-scroll--backgrounds {
    max-height: min(52vh, 360px);
  }

  .card-characters .roster-scroll--characters {
    min-height: 170px;
    max-height: 320px;
  }

  .card-characters .character-roster-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }

  .card-characters .character-toggle {
    height: 78px;
    padding: 4px;
    border-radius: 10px;
  }

  .card-characters .character-toggle img {
    width: 42px;
    height: 56px;
  }

  .card-characters .character-toggle-expert {
    display: none;
  }

  .card-characters .character-toggle span {
    font-size: 9px;
    bottom: 3px;
  }

  .card-backgrounds .roster-scroll--backgrounds {
    min-height: 180px;
    max-height: none;
  }

  .character-roster-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px;
  }

  .background-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }

  .background-gallery-item {
    position: relative;
    min-width: 0;
  }

  .background-gallery-item .background-card {
    width: 100%;
    box-sizing: border-box;
  }

  .character-toggle,
  .background-card {
    position: relative;
    display: grid;
    place-items: center;
    padding: 8px;
    border: 2px solid transparent;
    border-radius: 14px;
    color: var(--ink);
    background: rgba(255,255,255,.64);
    box-shadow: none;
    cursor: pointer;
  }

  .character-toggle {
    height: 108px;
    padding: 6px;
  }

  .background-card {
    height: 58px;
    overflow: hidden;
    background-size: cover;
    background-position: center;
  }

  .character-toggle img {
    display: block;
    width: 64px;
    height: 86px;
    object-fit: contain;
    object-position: center bottom;
    pointer-events: none;
  }

  .character-toggle span {
    position: absolute;
    left: 6px;
    right: 6px;
    bottom: 2px;
    overflow: hidden;
    color: var(--muted);
    font-size: 10px;
    font-weight: 800;
    line-height: 1.1;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .character-toggle-expert {
    position: absolute;
    left: 4px;
    right: 4px;
    bottom: 17px;
    display: block;
    overflow: hidden;
    color: rgba(100, 116, 139, .95);
    font-size: 8px;
    font-weight: 700;
    line-height: 1.15;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
    pointer-events: none;
  }

  .background-card span {
    position: absolute;
    left: 6px;
    right: 6px;
    bottom: 5px;
    overflow: hidden;
    padding: 3px 5px;
    border-radius: 999px;
    color: #0f172a;
    background: rgba(255,255,255,.82);
    font-size: 10px;
    font-weight: 800;
    line-height: 1;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .character-toggle.is-on-stage {
    border-color: rgba(37, 99, 235, .78);
    background: rgba(239, 246, 255, .92);
    box-shadow: 0 10px 28px rgba(37,99,235,.14);
  }

  .character-toggle.is-active {
    outline: 3px solid rgba(37, 99, 235, .18);
  }

  .background-card.is-active {
    border-color: rgba(37, 99, 235, .9);
    box-shadow: 0 10px 28px rgba(37,99,235,.14);
  }

  .background-card--blank {
    background:
      linear-gradient(45deg, rgba(148,163,184,.24) 25%, transparent 25%, transparent 75%, rgba(148,163,184,.24) 75%),
      linear-gradient(45deg, rgba(148,163,184,.24) 25%, transparent 25%, transparent 75%, rgba(148,163,184,.24) 75%),
      linear-gradient(180deg, rgba(248,250,252,.95), rgba(226,232,240,.9));
    background-position: 0 0, 8px 8px, 0 0;
    background-size: 16px 16px, 16px 16px, cover;
  }

  .character {
    position: absolute;
    width: 179px;
    height: 252px;
    cursor: grab;
    transform-origin: center bottom;
    transition: transform .16s ease;
    padding: 8px;
    overflow: visible;
    touch-action: none;
    --sprite-w: 100%;
    --sprite-h: 100%;
    --sprite-left: 0%;
    --sprite-bottom: 0px;
  }

  .character:not(.on-stage) {
    display: none;
  }

  .character::before,
  .character::after {
    position: absolute;
    left: 50%;
    opacity: 0;
    pointer-events: none;
    transition: opacity .14s ease, transform .14s ease;
  }

  .character::before {
    content: "";
    z-index: 1;
    top: 50%;
    width: calc(100% - 14px);
    height: calc(100% - 14px);
    border: 2px solid rgba(37, 99, 235, .78);
    border-radius: 18px;
    box-shadow: 0 0 0 6px rgba(37, 99, 235, .12), 0 14px 32px rgba(37, 99, 235, .18);
    transform: translate(-50%, -50%) scale(.98);
  }

  .character::after {
    content: attr(data-name);
    z-index: 3;
    top: -22px;
    padding: 5px 9px;
    border-radius: 999px;
    color: #0f172a;
    background: rgba(255, 255, 255, .94);
    box-shadow: 0 8px 22px rgba(15, 23, 42, .14);
    font-size: 12px;
    font-weight: 800;
    line-height: 1;
    white-space: nowrap;
    transform: translate(-50%, 4px);
  }

  .character.dragging {
    cursor: grabbing;
    transition: none;
    transform: scale(1.02);
  }

  .character.active {
    transform: none;
  }

  .character.active::before,
  .character.active::after {
    opacity: 1;
  }

  .character.on-stage:hover::before,
  .character.on-stage:hover::after {
    opacity: 1;
  }

  .character.on-stage:hover::before {
    border-color: rgba(34, 197, 94, .86);
    box-shadow: 0 0 0 6px rgba(34, 197, 94, .14), 0 14px 32px rgba(34, 197, 94, .18);
    transform: translate(-50%, -50%) scale(1);
  }

  .character.on-stage:hover::after {
    transform: translate(-50%, 0);
  }

  .character.active::before {
    transform: translate(-50%, -50%) scale(1);
  }

  .character.active::after {
    transform: translate(-50%, 0);
  }

  body.is-recording .character::before,
  body.is-recording .character::after {
    opacity: 0 !important;
  }

  .recording-modal {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(15, 23, 42, .5);
    backdrop-filter: blur(8px);
  }

  .recording-modal.open {
    display: flex;
  }

  .recording-modal-panel {
    width: min(900px, calc(100vw - 32px));
    max-height: calc(100vh - 32px);
    padding: 14px;
    border-radius: 18px;
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 26px 70px rgba(15, 23, 42, .28);
  }

  .recording-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
  }

  .recording-modal-panel button.secondary {
    color: var(--ink);
    background: rgba(15, 23, 42, .08);
    box-shadow: none;
  }

  .recording-modal video {
    display: block;
    width: 100%;
    max-height: calc(100vh - 170px);
    border-radius: 12px;
    background: #000;
  }

  .recording-modal-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 10px;
  }

  .recording-modal-actions a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 14px;
    border-radius: 12px;
    background: #2563eb;
    color: #fff;
    font-weight: 800;
    text-decoration: none;
    box-shadow: 0 10px 20px rgba(37, 99, 235, .2);
  }

  body.gallery-page {
    padding-top: 72px;
    user-select: text;
  }

  .gallery-topbar {
    flex-wrap: wrap;
  }

  .gallery-topbar-title {
    flex: 1 1 220px;
    min-width: 0;
  }

  .gallery-subtitle {
    font-weight: 600;
    color: var(--muted);
    font-size: 12px;
  }

  .gallery-topbar-link {
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 12px;
    border-radius: 10px;
  }

  .gallery-shell {
    width: min(1200px, calc(100vw - 24px));
    margin: 0 auto 40px;
    padding: 0 4px;
  }

  .gallery-load-note {
    margin: 0 0 12px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
  }

  .gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
  }

  .gallery-card {
    display: block;
    width: 100%;
    border-radius: 14px;
    overflow: hidden;
    background: var(--panel);
    border: 1px solid rgba(17, 24, 39, .09);
    box-shadow: 0 8px 20px rgba(17, 24, 39, .06);
    cursor: pointer;
    text-align: left;
    padding: 0;
    font: inherit;
    color: inherit;
    transition: transform 0.12s ease, box-shadow 0.12s ease;
  }

  .gallery-card:hover,
  .gallery-card:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(17, 24, 39, .12);
    outline: none;
  }

  .gallery-card:focus-visible {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .35);
  }

  .gallery-card-thumb-wrap {
    aspect-ratio: 16 / 10;
    background: #0f172a;
    position: relative;
  }

  .gallery-card-thumb-wrap img,
  .gallery-card-thumb-wrap video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    pointer-events: none;
  }

  .gallery-card-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: rgba(255, 255, 255, .55);
    font-size: 12px;
    font-weight: 700;
  }

  .gallery-card-meta {
    padding: 10px 12px 12px;
  }

  .gallery-card-title {
    font-weight: 800;
    font-size: 12px;
    word-break: break-word;
  }

  .gallery-card-date {
    font-size: 11px;
    color: var(--muted);
    margin-top: 4px;
    font-weight: 600;
  }

  .gallery-empty {
    padding: 28px 20px;
    border-radius: 14px;
    background: var(--panel);
    border: 1px dashed rgba(17, 24, 39, .15);
    color: var(--muted);
    text-align: center;
    font-weight: 600;
    line-height: 1.45;
  }

  .sprite-wrap {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 2;
    width: 100%;
    height: 399px;
    overflow: visible;
    pointer-events: none;
    transform-origin: center center;
    transform: translate(-50%, -72%) scale(var(--character-scale, 1));
    transition: transform .14s ease;
  }

  .sprite {
    position: absolute;
    left: var(--sprite-left);
    bottom: var(--sprite-bottom);
    display: block;
    width: var(--sprite-w);
    height: var(--sprite-h);
    max-width: none;
    object-fit: contain;
    object-position: center bottom;
    filter: drop-shadow(0 18px 18px rgba(15,23,42,.14));
    pointer-events: none;
  }
  .character[data-key="pixel"] {
    --sprite-bottom: 5px;
  }

  .character[data-key="nori"] {
    --sprite-w: 72%;
    --sprite-h: 72%;
    --sprite-left: 14%;
  }

  .character[data-key="girl"] {
    --sprite-w: 96%;
    --sprite-h: 96%;
    --sprite-left: 2%;
  }

  .character[data-key="dog"] {
    --sprite-w: 97%;
    --sprite-h: 97%;
    --sprite-left: 1.5%;
  }

  .character[data-key="oldman"] {
    --sprite-w: 95%;
    --sprite-h: 95%;
    --sprite-left: 2.5%;
  }
.hint {
    position: fixed;
    z-index: 55;
    bottom: 14px;
    left: 50%;
    transform: translateX(-50%);
    width: clamp(225px, calc((100vw - 650px) * 0.75), var(--canvas-base-width));
    max-width: none;
    padding: 10px 12px;
    border-radius: 10px;
    color: var(--muted);
    background: #fff;
    border: 1px solid rgba(17,24,39,.08);
    box-shadow: 0 10px 22px rgba(17,24,39,.08);
    backdrop-filter: none;
    font-size: 12px;
    text-align: center;
  }

  .app-panel-scroll .hint.hint-chat {
    position: relative;
    z-index: 41;
    bottom: auto;
    left: auto;
    transform: none;
    width: 100%;
    max-width: none;
    margin: 0;
    text-align: left;
    box-shadow: 0 4px 14px rgba(17, 24, 39, 0.07);
  }

  .hint-chat {
    text-align: left;
    padding: 10px 12px;
  }

  .hint-chat .chat-panel-title {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    color: var(--ink);
  }

  .hint-chat .control-row {
    margin-bottom: 0;
    justify-content: flex-end;
  }

  .hint-chat button.secondary {
    color: var(--ink);
    background: rgba(15, 23, 42, .08);
    box-shadow: none;
  }

  .chat-prompt-offer {
    margin-top: 8px;
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid rgba(37, 99, 235, 0.22);
    background: rgba(37, 99, 235, 0.06);
    text-align: left;
  }

  .chat-prompt-offer-summary {
    font-size: 11px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.35;
    margin-bottom: 6px;
    word-break: break-word;
  }

  .chat-prompt-offer-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: flex-end;
  }



  @media (max-width: 760px) {
    .topbar { align-items: stretch; }
    .meter { display: none; }
    .app-connectivity-badge {
      padding: 4px 8px;
      font-size: 10px;
      margin-left: 6px;
    }
    .status span { white-space: normal; }
    .character { width: 148px; height: 210px; }
    .sprite-wrap { height: 328px; overflow: visible; }
  }

  @media (max-width: 1180px) {
    body {
      min-height: 100vh;
      padding-bottom: 340px;
    }

    .topbar {
      top: 10px;
      width: calc(100vw - 20px);
      border-radius: 16px;
    }

    .topbar.app-topbar {
      top: 0;
      left: 0;
      width: 100%;
      border-radius: 0;
      transform: none;
    }

    .app-rail {
      display: none;
    }

    .app-panel-wrap {
      display: contents;
    }

    .recording-area {
      top: 92px;
      width: calc((100vw - 28px) * 0.75);
      height: clamp(169px, calc((100vh - 360px) * 0.75), var(--canvas-base-height));
      transform: translateX(-50%);
      border-radius: 20px;
    }

    body:has(.topbar.app-topbar):has(.cards-layer.app-workbench) .recording-area {
      left: 50%;
      width: min(var(--canvas-base-width), calc((100vw - 28px) * 0.82));
      max-width: calc(100vw - 24px);
      transform: translate(-50%, -50%);
      top: calc(
        var(--app-topbar-h) + (100vh - var(--app-topbar-h) - var(--app-bottombar-h)) / 2
      );
    }

    .cards-layer {
      top: auto;
      bottom: 12px;
      left: 12px;
      right: 12px;
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
      pointer-events: none;
    }

    .panel-column {
      display: contents;
    }

    .tool-card {
      position: relative;
      z-index: auto;
      width: auto;
      max-height: 260px;
      height: auto;
      min-height: 170px;
      top: auto !important;
      left: auto !important;
      right: auto !important;
      bottom: auto !important;
    }

    .tool-card.card-props {
      max-height: min(400px, 48vh);
      min-height: 220px;
    }

    .card-story,
    .card-backgrounds {
      max-height: 300px;
      min-height: 210px;
    }

    .roster-scroll {
      max-height: none;
      min-height: 0;
    }

    .card-characters .roster-scroll--characters {
      min-height: 150px;
      max-height: 280px;
    }

    .roster-scroll--backgrounds {
      max-height: min(46vh, 320px);
    }

    .card-characters .character-roster-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 6px;
    }

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

    .character-toggle {
      height: 82px;
      padding: 5px;
      border-radius: 10px;
    }

    .character-toggle img {
      width: 50px;
      height: 64px;
    }

    .background-card {
      height: 52px;
    }

    .character-toggle-expert {
      display: none;
    }

  }

  @media (max-width: 720px) {
    body {
      min-height: 100vh;
      padding-bottom: 560px;
    }

    button {
      padding: 9px 12px;
      border-radius: 12px;
    }

    .topbar {
      display: grid;
      grid-template-columns: auto 1fr;
      gap: 8px 10px;
      padding: 10px;
    }

    .topbar.app-topbar {
      grid-template-columns: 1fr;
    }

    .app-topbar-meter {
      margin-left: 0;
      justify-self: start;
      width: min(200px, 100%);
    }

    .status strong {
      font-size: 13px;
    }

    .status span {
      font-size: 11px;
    }

    .recording-area {
      top: 112px;
      width: calc((100vw - 20px) * 0.75);
      height: clamp(135px, calc((100vh - 500px) * 0.75), 293px);
      border-radius: 16px;
    }

    .cards-layer {
      left: 10px;
      right: 10px;
      bottom: 10px;
      grid-template-columns: 1fr;
      gap: 8px;
    }

    .panel-column {
      display: contents;
    }

    .tool-card {
      max-height: 190px;
      min-height: 150px;
      height: auto;
    }

    .card-story,
    .card-backgrounds {
      max-height: 230px;
      min-height: 170px;
    }

    .roster-scroll {
      flex: 0 0 auto;
      max-height: 76px;
      overflow-x: auto;
      overflow-y: hidden;
    }

    .card-characters .roster-scroll--characters {
      max-height: 170px;
      overflow-y: auto;
      overflow-x: hidden;
    }

    .roster-scroll--backgrounds {
      max-height: 180px;
      overflow-y: auto;
      overflow-x: hidden;
    }

    .roster-scroll--props {
      max-height: min(220px, 36vh) !important;
      min-height: 120px !important;
      overflow-y: auto !important;
      overflow-x: hidden !important;
    }

    .tool-card.card-props {
      max-height: min(400px, 52vh) !important;
      min-height: 260px !important;
    }

    .background-card-grid {
      grid-template-columns: repeat(6, minmax(58px, 1fr));
      overflow-x: auto;
      padding-bottom: 4px;
    }

    .card-characters .character-roster-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
      overflow-x: hidden;
      overflow-y: auto;
      padding-bottom: 4px;
    }

    .card-props .prop-roster-grid {
      grid-template-columns: repeat(3, minmax(58px, 1fr));
      overflow-x: auto;
      padding-bottom: 4px;
    }

    .character-toggle {
      height: 96px;
      min-width: 58px;
    }

    .character-toggle img {
      width: 48px;
      height: 70px;
    }

    .character-toggle span {
      font-size: 10px;
    }

    .background-card {
      height: 76px;
      min-width: 96px;
    }

    .character {
      width: 132px;
      height: 193px;
    }

    .sprite-wrap {
      height: 294px;
    }
  }

  @media (max-width: 440px) {
    body {
      padding-bottom: 610px;
    }

    .topbar {
      grid-template-columns: 1fr;
    }

    .topbar button {
      width: 100%;
    }

    .recording-area {
      top: 142px;
      height: clamp(124px, calc((100vh - 560px) * 0.75), 248px);
    }

    .tool-card {
      max-height: 182px;
    }

    .tool-card.card-props {
      max-height: min(360px, 46vh) !important;
      min-height: 240px !important;
    }

    .background-card-grid {
      grid-template-columns: repeat(6, 62px);
    }

    .card-characters .character-roster-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
      overflow-x: hidden;
    }

    .card-props .prop-roster-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    }

    .background-card-grid {
      grid-template-columns: repeat(15, 96px);
    }
  }

  /* Keep one stable desktop-like layout; scale it down uniformly instead of collapsing cards. */
  body.uniform-scale-layout {
    padding-bottom: 0 !important;
  }

  body.uniform-scale-layout .topbar {
    top: 10px !important;
    width: 1320px !important;
    border-radius: 10px !important;
    display: flex !important;
    grid-template-columns: none !important;
  }

  body.uniform-scale-layout .topbar.app-topbar {
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    max-width: none !important;
    border-radius: 0 !important;
    transform: none !important;
  }

  body.uniform-scale-layout .recording-area {
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    width: var(--canvas-base-width) !important;
    height: var(--canvas-base-height) !important;
    aspect-ratio: 16 / 9 !important;
    border-radius: 10px !important;
  }

  body.uniform-scale-layout:has(.cards-layer.app-workbench) .recording-area {
    left: calc((100vw + var(--app-dock-w)) / 2) !important;
    top: calc(
      var(--app-topbar-h) + (100vh - var(--app-topbar-h) - var(--app-bottombar-h)) / 2
    ) !important;
    transform: translate(-50%, -50%) !important;
  }

  body.uniform-scale-layout .cards-layer {
    position: fixed !important;
    top: 68px !important;
    bottom: 70px !important;
    left: 16px !important;
    right: 16px !important;
    display: flex !important;
    gap: 10px !important;
    grid-template-columns: none !important;
  }

  body.uniform-scale-layout .cards-layer.app-workbench {
    top: var(--app-topbar-h) !important;
    bottom: var(--app-bottombar-h) !important;
    left: 0 !important;
    right: auto !important;
    justify-content: flex-start !important;
  }

  body.uniform-scale-layout .app-rail {
    display: flex !important;
  }

  body.uniform-scale-layout .app-panel-wrap {
    display: flex !important;
  }

  body.uniform-scale-layout .hint {
    width: var(--canvas-base-width) !important;
  }

  body.uniform-scale-layout .panel-column .hint.hint-chat {
    width: auto !important;
    max-width: none !important;
  }

  body.uniform-scale-layout .panel-column {
    display: flex !important;
    width: 286px !important;
  }

  body.uniform-scale-layout .tool-card {
    max-height: calc(50vh - 6px) !important;
    min-height: 0 !important;
    height: auto !important;
  }

  body.uniform-scale-layout .tool-card.card-props {
    max-height: min(58vh, 520px) !important;
  }

  body.uniform-scale-layout .panel-column.app-panel-scroll.app-panel-tabbed > .tool-card.is-tab-panel-active {
    max-height: none !important;
  }

  body.lessons-page {
    padding-top: 72px;
    user-select: text;
    background: linear-gradient(180deg, var(--bg1), var(--bg2));
    min-height: 100vh;
  }

  .lessons-topbar {
    flex-wrap: wrap;
    gap: 10px;
  }

  .lessons-shell {
    width: min(1200px, calc(100vw - 24px));
    margin: 0 auto 60px;
    padding: 0 6px;
  }

  .lessons-view[hidden] { display: none; }

  .lessons-catalog-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin: 8px 0 16px;
  }

  .lessons-catalog-title {
    margin: 0 0 4px;
    font-size: 1.4rem;
    font-weight: 800;
    color: #0f172a;
  }

  .lessons-catalog-sub {
    margin: 0;
    color: var(--muted);
    font-size: .92rem;
  }

  .lessons-catalog-tools {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
  }

  .lessons-filter-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--muted);
  }

  .lessons-filter-select {
    border: 1px solid rgba(15, 23, 42, .15);
    background: var(--panel);
    border-radius: 10px;
    padding: 6px 10px;
    font: inherit;
    font-weight: 600;
    color: #0f172a;
  }

  .lessons-load-note {
    margin: 0 0 12px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
  }

  .lessons-empty {
    padding: 28px 20px;
    border-radius: 14px;
    background: var(--panel);
    border: 1px dashed rgba(17, 24, 39, .15);
    color: var(--muted);
    text-align: center;
    font-weight: 600;
    line-height: 1.45;
  }

  .course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
  }

  .course-card {
    background: var(--panel);
    border-radius: 16px;
    border: 1px solid rgba(17, 24, 39, .09);
    box-shadow: 0 8px 22px rgba(17, 24, 39, .06);
    padding: 14px 14px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: transform .12s ease, box-shadow .12s ease;
  }

  .course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(17, 24, 39, .1);
  }

  .course-card.is-locked {
    opacity: .85;
  }

  .course-card-head {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
  }

  .course-card-teacher,
  .course-card-level,
  .course-card-free,
  .course-card-lock {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .04em;
    padding: 3px 8px;
    border-radius: 999px;
    background: rgba(37, 99, 235, .1);
    color: #1d4ed8;
    text-transform: uppercase;
  }

  .course-card-level {
    background: rgba(15, 23, 42, .07);
    color: #334155;
  }

  .course-card-free {
    background: rgba(22, 163, 74, .12);
    color: #166534;
  }

  .course-card-lock {
    background: rgba(234, 88, 12, .12);
    color: #c2410c;
  }

  .course-card-title {
    margin: 4px 0 0;
    font-size: 1.05rem;
    font-weight: 800;
    color: #0f172a;
    line-height: 1.25;
  }

  .course-card-summary {
    margin: 0;
    font-size: .9rem;
    color: #475569;
    line-height: 1.4;
  }

  .course-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    margin-top: 2px;
  }

  .course-card-badge {
    margin-left: auto;
    font-size: 11px;
    font-weight: 800;
    padding: 3px 8px;
    border-radius: 999px;
  }

  .course-card-badge--progress {
    background: rgba(37, 99, 235, .12);
    color: #1d4ed8;
  }

  .course-card-badge--done {
    background: rgba(22, 163, 74, .14);
    color: #166534;
  }

  .course-card-actions {
    margin-top: 6px;
    display: flex;
    justify-content: flex-end;
  }

  .course-card-actions button {
    padding: 8px 14px;
    border-radius: 10px;
    font-weight: 800;
    border: 0;
    cursor: pointer;
    background: #2563eb;
    color: #fff;
  }

  .course-card-actions button.secondary {
    background: rgba(15, 23, 42, .08);
    color: #0f172a;
  }

  .lesson-runner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .lesson-runner-head {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    background: rgba(250, 204, 21, 0.08);
    border: 1px solid rgba(202, 138, 4, 0.25);
    border-radius: 14px;
    padding: 10px 12px;
  }

  .lesson-back-btn {
    padding: 6px 10px;
    border-radius: 10px;
    background: rgba(15, 23, 42, .08);
    color: #0f172a;
    border: 0;
    cursor: pointer;
    font-weight: 700;
  }

  .lesson-runner-title {
    flex: 1 1 200px;
    display: flex;
    flex-direction: column;
  }

  .lesson-runner-title strong { font-size: 1.05rem; color: #0f172a; }

  .lesson-runner-character {
    font-size: 12px;
    font-weight: 700;
    color: var(--muted);
  }

  .lesson-progress {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1 1 220px;
  }

  .lesson-progress-track {
    flex: 1;
    height: 8px;
    background: rgba(15, 23, 42, .08);
    border-radius: 999px;
    overflow: hidden;
  }

  .lesson-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #60a5fa, #2563eb);
    transition: width .25s ease;
  }

  .lesson-progress-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--muted);
    white-space: nowrap;
  }

  .lesson-runner-stage {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #0f172a;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 14px 30px rgba(15, 23, 42, .12);
  }

  .lesson-mini-stage .lesson-recording-stub {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    border-radius: inherit;
    overflow: hidden;
  }

  .lesson-mini-stage .lesson-recording-stub::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.2), rgba(15, 23, 42, 0.45));
    pointer-events: none;
    z-index: 2;
  }

  .lesson-mini-stage .background-image-layer {
    z-index: 1;
  }

  .lesson-mini-stage .lesson-runner-bubble {
    z-index: 4;
  }

  .lesson-mini-stage .lesson-puppet.character.active {
    left: 50%;
    top: 70%;
    transform: translate(-50%, -100%);
    transform-origin: center bottom;
    cursor: grab;
    z-index: 10;
    filter: drop-shadow(0 14px 20px rgba(15, 23, 42, .28));
    touch-action: none;
  }

  .lesson-mini-stage .lesson-puppet.character.active.lesson-puppet-dragging {
    cursor: grabbing;
    transition: none !important;
  }

  .lesson-mini-stage .lesson-puppet.character.active::before,
  .lesson-mini-stage .lesson-puppet.character.active::after {
    opacity: 0;
    pointer-events: none;
  }

  .lesson-runner-bubble {
    position: absolute;
    left: 50%;
    top: 6%;
    transform: translateX(-50%);
    max-width: min(560px, 80%);
    padding: 12px 16px;
    border-radius: 16px;
    background: rgba(255, 255, 255, .94);
    color: #0f172a;
    font-size: 1rem;
    font-weight: 600;
    box-shadow: 0 10px 24px rgba(15, 23, 42, .25);
    opacity: 0;
    transition: opacity .2s ease;
    text-align: center;
    line-height: 1.4;
  }

  .lesson-runner-bubble.is-visible {
    opacity: 1;
  }

  .lesson-screen-settings {
    background: var(--panel);
    border: 1px solid rgba(17, 24, 39, .09);
    border-radius: 14px;
    padding: 0 12px;
  }

  .lesson-screen-settings__summary {
    list-style: none;
    cursor: pointer;
    font-weight: 800;
    font-size: 0.88rem;
    color: #0f172a;
    padding: 10px 0;
    user-select: none;
  }

  .lesson-screen-settings__summary::-webkit-details-marker {
    display: none;
  }

  .lesson-screen-settings__summary::after {
    content: "";
    display: inline-block;
    width: 0.45em;
    height: 0.45em;
    margin-left: 0.35em;
    border-right: 2px solid var(--muted);
    border-bottom: 2px solid var(--muted);
    transform: rotate(45deg) translateY(-2px);
    vertical-align: middle;
    opacity: 0.75;
  }

  .lesson-screen-settings[open] .lesson-screen-settings__summary::after {
    transform: rotate(225deg) translateY(1px);
  }

  .lesson-screen-settings__body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 16px;
    padding: 0 0 12px;
    border-top: 1px solid rgba(17, 24, 39, .07);
  }

  @media (max-width: 720px) {
    .lesson-screen-settings__body {
      grid-template-columns: 1fr;
    }
  }

  .lesson-screen-settings__field--full {
    grid-column: 1 / -1;
  }

  .lesson-puppet-scale-range {
    width: 100%;
    max-width: 360px;
    accent-color: #2563eb;
  }

  .lesson-puppet-scale-row {
    margin-top: 8px;
  }

  .lesson-puppet-reset-btn {
    padding: 6px 10px;
    border-radius: 10px;
    border: 0;
    cursor: pointer;
    font-weight: 700;
    font-size: 12px;
    background: rgba(15, 23, 42, 0.08);
    color: #0f172a;
  }

  .lesson-puppet-reset-btn:hover {
    background: rgba(15, 23, 42, 0.12);
  }

  .lesson-screen-settings__label {
    display: block;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    margin-bottom: 6px;
  }

  .lesson-screen-settings__hint {
    margin: 6px 0 0;
    font-size: 11px;
    color: var(--muted);
    line-height: 1.35;
  }

  .lesson-settings-select {
    width: 100%;
    max-width: 100%;
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid rgba(17, 24, 39, .12);
    background: #fff;
    color: #0f172a;
    font-size: 0.9rem;
    font-weight: 600;
  }

  .lesson-settings-select--nested {
    margin-top: 8px;
  }

  .lesson-runner-controls {
    background: var(--panel);
    border-radius: 14px;
    border: 1px solid rgba(17, 24, 39, .09);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .lesson-runner-controls:has(.lesson-quiz:not([hidden])) .lesson-chat-log {
    max-height: 140px;
  }

  .lesson-chat-log {
    max-height: 220px;
    min-height: 80px;
    overflow-y: auto;
    background: rgba(15, 23, 42, .04);
    border-radius: 10px;
    padding: 8px 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .lesson-chat-log .chat-msg {
    background: var(--panel);
    border-radius: 10px;
    padding: 6px 10px;
    border: 1px solid rgba(17, 24, 39, .07);
  }

  .lesson-chat-log .chat-msg--user {
    background: rgba(37, 99, 235, .08);
    border-color: rgba(37, 99, 235, .25);
  }

  .lesson-chat-log .chat-msg__who {
    font-size: 11px;
    font-weight: 800;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .04em;
  }

  .lesson-chat-log .chat-msg__text {
    font-size: .92rem;
    color: #0f172a;
    line-height: 1.4;
  }

  .lesson-quiz {
    background: rgba(250, 204, 21, .08);
    border: 1px solid rgba(202, 138, 4, .25);
    border-radius: 12px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .lesson-quiz-question {
    font-weight: 800;
    color: #0f172a;
  }

  .lesson-quiz-choices {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 8px;
    width: 100%;
    min-height: 0;
  }

  @media (min-width: 560px) {
    .lesson-quiz-choices {
      flex-direction: row;
      flex-wrap: wrap;
    }
  }

  .lesson-quiz-choice {
    border: 1px solid rgba(15, 23, 42, .15);
    background: var(--panel);
    color: #0f172a;
    border-radius: 10px;
    padding: 8px 12px;
    font-weight: 700;
    cursor: pointer;
    font: inherit;
    width: 100%;
    text-align: left;
    flex: 1 1 auto;
    min-height: 40px;
    box-sizing: border-box;
  }

  @media (min-width: 560px) {
    .lesson-quiz-choice {
      width: auto;
      min-width: min(100%, 160px);
      flex: 1 1 auto;
    }
  }

  .lesson-quiz-choice:hover {
    background: rgba(37, 99, 235, .08);
    border-color: rgba(37, 99, 235, .35);
  }

  .lesson-quiz-feedback {
    display: none;
    margin: 0;
    padding: 0;
    font-size: .9rem;
    color: #166534;
    font-weight: 700;
    line-height: 1.35;
  }

  .lesson-quiz-feedback.is-visible {
    display: block;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid rgba(202, 138, 4, 0.35);
  }

  .lesson-composer {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .lesson-composer textarea {
    width: 100%;
    border-radius: 10px;
    border: 1px solid rgba(15, 23, 42, .18);
    padding: 10px;
    font: inherit;
    resize: vertical;
  }

  .lesson-composer .control-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .lesson-composer button {
    padding: 8px 14px;
    border-radius: 10px;
    font-weight: 800;
    border: 0;
    cursor: pointer;
    background: #2563eb;
    color: #fff;
  }

  .lesson-composer button.secondary {
    background: rgba(15, 23, 42, .08);
    color: #0f172a;
  }

  .lesson-composer .note {
    color: var(--muted);
    font-size: 12px;
    min-height: 16px;
  }

  .lesson-complete {
    background: var(--panel);
    border-radius: 16px;
    border: 1px solid rgba(17, 24, 39, .09);
    padding: 20px;
    box-shadow: 0 14px 30px rgba(17, 24, 39, .08);
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }

  .lesson-complete h2 {
    margin: 0;
    font-size: 1.3rem;
    color: #0f172a;
  }

  .lesson-complete-score {
    font-weight: 800;
    color: #166534;
  }

  .lesson-complete-actions button {
    background: #2563eb;
    color: #fff;
    border: 0;
    border-radius: 10px;
    padding: 8px 14px;
    font-weight: 800;
    cursor: pointer;
  }

  .buy-access-btn--pulse {
    animation: buyAccessPulse 1.6s ease-out 0s 1;
    box-shadow: 0 0 0 0 rgba(234, 88, 12, .55);
  }

  @keyframes buyAccessPulse {
    0% { box-shadow: 0 0 0 0 rgba(234, 88, 12, .55); }
    50% { box-shadow: 0 0 0 10px rgba(234, 88, 12, 0); }
    100% { box-shadow: 0 0 0 0 rgba(234, 88, 12, 0); }
  }

  /* Kids onboarding & panel tips */
  .kids-tips-btn {
    font-weight: 800;
  }

  .kids-panel-tip {
    margin: 8px 0 10px;
    padding: 10px 12px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(254, 243, 199, 0.95), rgba(253, 230, 138, 0.55));
    border: 1px solid rgba(245, 158, 11, 0.35);
    color: #78350f;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.45;
  }

  .kids-panel-tip a {
    color: #1d4ed8;
    text-decoration: underline;
  }

  .kids-panel-tip--chat {
    margin-top: 0;
  }

  .lessons-page .kids-panel-tip {
    max-width: 42rem;
  }

  .kids-panel-tip--lessons-runner {
    margin-bottom: 12px;
  }

  .kids-onboarding-banner {
    position: fixed;
    left: 0;
    right: 0;
    z-index: 59;
    border: 0;
    border-bottom: 1px solid rgba(245, 158, 11, 0.35);
    padding: 0;
    background: linear-gradient(135deg, rgba(254, 243, 199, 0.98), rgba(253, 230, 138, 0.92));
    color: var(--ink, #0f172a);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
  }

  .kids-onboarding-banner[hidden] {
    display: none !important;
  }

  .kids-onboarding-inner {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: 14px 18px;
    width: min(1320px, calc(100vw - 24px));
    margin: 0 auto;
    padding: 14px 16px;
  }

  .kids-onboarding-copy {
    min-width: 0;
  }

  .kids-onboarding-icon {
    font-size: 2rem;
    line-height: 1;
  }

  .kids-onboarding-title {
    margin: 0 0 4px;
    font-size: 1.05rem;
    font-weight: 900;
    line-height: 1.25;
  }

  .kids-onboarding-body {
    margin: 0;
    font-size: 13px;
    line-height: 1.45;
    color: #334155;
  }

  .kids-onboarding-dots {
    display: flex;
    gap: 6px;
    justify-content: center;
    align-self: center;
  }

  .kids-onboarding-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(148, 163, 184, 0.55);
  }

  .kids-onboarding-dot.is-active {
    background: #2563eb;
    transform: scale(1.15);
  }

  .kids-onboarding-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    flex-wrap: wrap;
    align-self: center;
  }

  body.kids-onboarding-active {
    --kids-onboarding-banner-h: var(--kids-onboarding-measured-h, 0px);
  }

  body:has(.topbar.app-topbar):has(.kids-onboarding-active):has(.cards-layer.app-workbench) .recording-area {
    --avail-h: calc(100vh - var(--app-topbar-h) - var(--kids-onboarding-banner-h) - var(--app-bottombar-h) - var(--stage-pad-y));
    top: calc(var(--app-topbar-h) + var(--kids-onboarding-banner-h) + var(--avail-h) / 2);
  }

  body.lessons-page.kids-onboarding-active {
    padding-top: calc(72px + var(--kids-onboarding-banner-h));
  }

  @media (max-width: 760px) {
    .kids-onboarding-inner {
      grid-template-columns: auto 1fr;
      grid-template-areas:
        "icon copy"
        "dots actions";
    }

    .kids-onboarding-icon { grid-area: icon; }
    .kids-onboarding-copy { grid-area: copy; }
    .kids-onboarding-dots {
      grid-area: dots;
      justify-content: flex-start;
    }
    .kids-onboarding-actions {
      grid-area: actions;
      justify-content: flex-end;
    }
  }

  .kids-onboarding-actions .kids-onboarding-back {
    margin-right: auto;
  }

  .kids-onboarding-actions button {
    font-weight: 800;
    border-radius: 10px;
    padding: 8px 14px;
    cursor: pointer;
  }

  .kids-onboarding-next {
    background: #2563eb;
    color: #fff;
    border: 0;
  }