.visualizer-page {
  background: var(--night);
}

.visualizer-page [hidden] {
  display: none !important;
}

.visualizer-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  min-width: 0;
}

.visualizer-hero {
  padding: 155px clamp(20px, 5vw, 72px) 72px;
  color: var(--white);
  background:
    radial-gradient(circle at 82% 18%, rgba(207, 255, 40, 0.12), rgba(207, 255, 40, 0) 32%),
    linear-gradient(135deg, rgba(7, 17, 24, 0.98), rgba(35, 59, 49, 0.9));
}

.visualizer-hero-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(340px, 0.7fr);
  gap: clamp(32px, 7vw, 86px);
  align-items: center;
}

.visualizer-hero-grid > * {
  min-width: 0;
}

.visualizer-hero h1 {
  max-width: 800px;
  font-size: clamp(4rem, 7vw, 6.4rem);
  overflow-wrap: break-word;
}

.visualizer-lede {
  max-width: 690px;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1.18rem, 2vw, 1.55rem);
  line-height: 1.5;
}

.visualizer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.upload-card,
.designer-panel {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.upload-card {
  display: grid;
  gap: 18px;
  padding: 22px;
}

.drop-zone {
  display: grid;
  min-height: 246px;
  place-items: center;
  gap: 8px;
  padding: 24px;
  border: 1px dashed rgba(255, 255, 255, 0.35);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.8);
  background: rgba(7, 17, 24, 0.34);
  cursor: pointer;
  text-align: center;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.drop-zone.is-dragging,
.drop-zone:hover {
  border-color: var(--glow);
  background: rgba(243, 175, 60, 0.12);
  transform: translateY(-1px);
}

.drop-zone input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.drop-zone span {
  font-size: 1.2rem;
  font-weight: 850;
}

.drop-zone strong {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.88rem;
}

.photo-guidance {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.photo-guidance span {
  min-width: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  padding-top: 10px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.86rem;
  line-height: 1.45;
}

.privacy-note {
  margin: 0;
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.86rem;
  line-height: 1.55;
}

.visualizer-alert {
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--white);
  background: rgba(7, 17, 24, 0.56);
  line-height: 1.5;
}

.visualizer-alert[data-state="error"] {
  border-color: rgba(217, 54, 54, 0.7);
  background: rgba(217, 54, 54, 0.14);
}

.visualizer-alert[data-state="success"] {
  border-color: rgba(40, 183, 103, 0.68);
  background: rgba(40, 183, 103, 0.14);
}

.visualizer-workspace {
  padding: 54px clamp(20px, 5vw, 72px) 82px;
  color: var(--white);
  background:
    linear-gradient(180deg, #071118 0%, #0d171d 52%, #14241d 100%);
}

.visualizer-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 380px);
  gap: 18px;
  align-items: start;
}

.stage-panel {
  overflow: hidden;
}

.designer-toolbar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(7, 17, 24, 0.42);
}

.designer-toolbar span {
  min-width: 0;
  padding: 14px 16px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.designer-toolbar span:first-child {
  color: var(--glow);
}

.stage-wrap {
  position: relative;
  padding: 16px;
}

.stage-empty {
  min-height: 520px;
  display: grid;
  align-content: center;
  justify-items: center;
  padding: 32px;
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.72);
  text-align: center;
}

.stage-empty h2 {
  max-width: 620px;
  color: var(--white);
  font-size: clamp(2.2rem, 5vw, 4rem);
}

.design-stage {
  --before-width: 0%;
  --stage-zoom: 1;
  --stage-pan-x: 0px;
  --stage-pan-y: 0px;
  position: relative;
  width: 100%;
  min-height: 0;
  overflow: hidden;
  border-radius: 8px;
  background: #050708;
  touch-action: pan-y;
  user-select: none;
}

.design-stage img,
.design-stage svg,
.stage-dim,
.before-mask {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: translate(var(--stage-pan-x), var(--stage-pan-y)) scale(var(--stage-zoom));
  transform-origin: center center;
}

.design-stage img {
  object-fit: contain;
  background: #050708;
}

.stage-dim {
  background: rgba(0, 0, 0, 0);
  pointer-events: none;
  transition: background 180ms ease;
}

.visualizer-workspace[data-preview-mode="dusk"] .stage-dim {
  background: rgba(4, 9, 12, 0.34);
}

.visualizer-workspace[data-preview-mode="night"] .stage-dim {
  background: rgba(3, 6, 10, 0.56);
}

.visualizer-workspace.is-drawing .design-stage,
.visualizer-workspace.is-zoomed .design-stage {
  touch-action: none;
}

.design-stage svg {
  overflow: visible;
  cursor: crosshair;
}

.zone-path {
  fill: none;
  stroke: rgba(255, 255, 255, 0.82);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.zone-path.is-selected {
  stroke: var(--glow);
}

.visualizer-workspace[data-guide-mode="preview"] .zone-path,
.visualizer-workspace[data-guide-mode="preview"] .anchor-point {
  opacity: 0;
  pointer-events: none;
}

.zone-wash,
.zone-soffit-wash,
.zone-contact-line {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

.zone-wash,
.zone-soffit-wash,
.led-spill,
.led-contact-glow {
  filter: url("#visualizerWash");
}

.zone-soffit-wash {
  mix-blend-mode: screen;
}

.zone-contact-line {
  filter: url("#visualizerGlow");
  vector-effect: non-scaling-stroke;
}

.led-spill {
  stroke-linecap: round;
  mix-blend-mode: screen;
  pointer-events: none;
}

.led-contact-glow {
  mix-blend-mode: screen;
  pointer-events: none;
}

.led-mount {
  fill: rgba(5, 7, 8, 0.58);
  stroke: rgba(255, 246, 219, 0.42);
  stroke-width: 0.9;
  vector-effect: non-scaling-stroke;
  pointer-events: none;
}

.led-point {
  stroke: rgba(255, 255, 255, 0.62);
  stroke-width: 0.9;
  filter: url("#visualizerGlow");
  pointer-events: none;
}

.led-core {
  filter: url("#visualizerGlow");
  pointer-events: none;
}

.anchor-point {
  fill: var(--glow);
  stroke: #071118;
  stroke-width: 3;
  cursor: grab;
  vector-effect: non-scaling-stroke;
}

.anchor-point.is-active {
  fill: var(--white);
}

.editing-line {
  fill: none;
  stroke: rgba(243, 175, 60, 0.9);
  stroke-width: 3;
  stroke-dasharray: 8 7;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.before-mask {
  display: none;
  width: var(--before-width);
  background: rgba(7, 17, 24, 0.38);
  border-right: 2px solid var(--glow);
  pointer-events: none;
}

.visualizer-workspace[data-view-mode="original"] .stage-dim,
.visualizer-workspace[data-view-mode="original"] svg {
  opacity: 0;
}

.visualizer-workspace[data-view-mode="split"] .before-mask {
  display: block;
}

.stage-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(7, 17, 24, 0.42);
}

.stage-footer div:first-child {
  display: grid;
  gap: 4px;
}

.stage-footer strong {
  color: var(--white);
}

.stage-footer span {
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.45;
}

.stage-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.button.compact {
  min-height: 40px;
  padding: 9px 14px;
  font-size: 0.86rem;
}

.control-panel {
  position: sticky;
  top: 92px;
  display: grid;
  gap: 0;
  overflow: hidden;
}

.control-group {
  display: grid;
  gap: 14px;
  padding: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.control-group:last-child {
  border-bottom: 0;
}

.control-group label {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.86rem;
  font-weight: 850;
}

.control-group input,
.control-group select {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  padding: 11px 12px;
  color: var(--white);
  background: rgba(7, 17, 24, 0.54);
}

.control-group input[type="range"] {
  padding: 0;
  accent-color: var(--glow);
}

.control-group input[type="color"] {
  min-height: 44px;
  padding: 5px;
}

.control-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.control-row button,
.segmented button {
  min-height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.07);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 850;
}

.control-row button:hover,
.control-row button.is-active {
  border-color: var(--glow);
  color: #1b1408;
  background: var(--glow);
}

.control-row button:disabled,
.control-group input:disabled,
.control-group select:disabled,
.control-group .button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

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

.toggle-line {
  display: flex !important;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 10px !important;
}

.toggle-line input {
  width: 18px;
  height: 18px;
}

.control-hint {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.84rem;
  line-height: 1.5;
}

/* V2.2 Phase 2: app-style appearance controls. */
.appearance-controls {
  gap: 16px;
}

.appearance-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.appearance-heading .eyebrow,
.appearance-scope {
  margin: 0;
}

.appearance-scope {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.76rem;
  font-weight: 750;
  text-align: right;
}

.theme-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.theme-card {
  display: grid;
  gap: 8px;
  min-height: 68px;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  text-align: left;
}

.theme-card:hover:not(:disabled),
.theme-card[aria-checked="true"] {
  border-color: var(--glow);
  color: var(--white);
  background: rgba(243, 175, 60, 0.14);
  box-shadow: 0 0 0 1px rgba(243, 175, 60, 0.2);
}

.theme-card:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

.theme-card strong {
  font-size: 0.78rem;
  line-height: 1.2;
}

.theme-swatches {
  display: flex;
  min-height: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
}

.theme-swatches i {
  flex: 1;
  min-width: 16px;
  background: var(--swatch);
}

.custom-swatch i {
  background: conic-gradient(from 90deg, #ff3b30, #ffd178, #28b767, #3f7cff, #7a3db8, #ff3b30);
}

.custom-palette-panel {
  display: grid;
  gap: 12px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  background: rgba(2, 10, 15, 0.26);
}

.custom-palette-panel[hidden] {
  display: none;
}

.palette-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.palette-chip {
  width: 46px;
  min-width: 46px;
  height: 46px;
  padding: 4px;
  border: 2px solid rgba(255, 255, 255, 0.32);
  border-radius: 999px;
  background: var(--chip-color);
  cursor: pointer;
}

.palette-chip[aria-checked="true"] {
  border-color: var(--white);
  box-shadow: 0 0 0 3px var(--glow);
}

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

.palette-actions button {
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.07);
  font-weight: 800;
}

.color-picker-label {
  grid-template-columns: minmax(0, 1fr) auto !important;
  align-items: center;
}

.color-picker-label input {
  grid-column: 1 / -1;
}

.selected-color-preview {
  width: 28px;
  height: 28px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 999px;
  background: var(--selected-color, #F3AF3C);
}

/* V2.2 Phase 3: deterministic animation controls. */
.animation-controls {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  background: rgba(2, 10, 15, 0.3);
}

.animation-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.animation-heading .eyebrow,
.animation-heading .control-hint {
  margin: 0;
}

.animation-state {
  flex: 0 0 auto;
  padding: 5px 9px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.07);
  font-size: 0.72rem;
  font-weight: 850;
}

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

.effect-card {
  display: grid;
  gap: 3px;
  min-height: 58px;
  padding: 9px 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 11px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.055);
  text-align: left;
}

.effect-card strong {
  font-size: 0.78rem;
}

.effect-card span {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.68rem;
}

.effect-card[aria-checked="true"] {
  border-color: var(--glow);
  color: var(--white);
  background: rgba(243, 175, 60, 0.14);
  box-shadow: 0 0 0 1px rgba(243, 175, 60, 0.2);
}

.effect-card[aria-checked="true"]::after {
  content: "Selected";
  color: var(--glow);
  font-size: 0.64rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.animation-playback,
.animation-option-group .segmented {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.animation-option-group {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  border: 0;
}

.animation-option-group legend {
  margin-bottom: 6px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.76rem;
  font-weight: 800;
}

.animation-option-group[data-animation-speed-group] .segmented {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.effect-card,
.animation-playback button,
.animation-option-group button {
  min-height: 44px;
}

.effect-card:focus-visible,
.animation-playback button:focus-visible,
.animation-option-group button:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}

.effect-card:disabled,
.animation-playback button:disabled,
.animation-option-group button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.reduced-motion-note {
  margin: 0;
  padding: 9px 10px;
  border-left: 3px solid var(--glow);
  color: rgba(255, 255, 255, 0.72);
  background: rgba(243, 175, 60, 0.08);
  font-size: 0.75rem;
  line-height: 1.45;
}

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

.theme-card:focus-visible,
.palette-chip:focus-visible,
.palette-actions button:focus-visible,
.appearance-controls select:focus-visible,
.appearance-controls input:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}

.visualizer-lead {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(7, 17, 24, 0.94), rgba(35, 59, 49, 0.9)),
    var(--forest);
}

.visualizer-quote-form .privacy-note {
  color: rgba(255, 255, 255, 0.58);
}

@media (max-width: 1060px) {
  .visualizer-hero {
    padding-top: 137px;
  }
  .visualizer-hero-grid,
  .visualizer-board {
    grid-template-columns: 1fr;
  }

  .control-panel {
    position: static;
  }
}

@media (max-width: 720px) {
  .visualizer-hero {
    padding: 116px 20px 52px;
  }

  .visualizer-hero h1 {
    font-size: clamp(2.55rem, 11vw, 3.2rem);
    line-height: 1;
  }

  .visualizer-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
    max-width: 100%;
  }

  .visualizer-actions .button {
    width: 100%;
    min-width: 0;
  }

  .visualizer-lede,
  .drop-zone span,
  .privacy-note {
    overflow-wrap: anywhere;
  }

  .photo-guidance,
  .designer-toolbar,
  .control-row {
    grid-template-columns: 1fr;
  }

  .visualizer-workspace {
    padding: 34px 12px 58px;
  }

  .stage-wrap {
    padding: 10px;
  }

  .stage-empty {
    min-height: 360px;
  }

  .stage-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .stage-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .control-group {
    padding: 16px;
  }

  .drop-zone {
    min-height: 210px;
  }

  .effect-card-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .drop-zone,
  .stage-dim {
    transition: none;
  }
}




/* Visualizer V2.1 RC8 candidate: mobile UX polish only. Rendering geometry is unchanged. */
@media (max-width: 720px) {
  .visualizer-hero {
    padding: 116px 14px 30px;
  }

  .visualizer-hero-grid {
    gap: 20px;
  }

  .visualizer-hero h1 {
    font-size: clamp(2.15rem, 10vw, 2.9rem);
    line-height: 0.98;
    letter-spacing: -0.045em;
  }

  .visualizer-lede {
    font-size: 1rem;
    line-height: 1.42;
  }

  .visualizer-actions {
    gap: 9px;
    margin-top: 20px;
  }

  .upload-card {
    gap: 12px;
    padding: 14px;
  }

  .drop-zone {
    min-height: 156px;
    padding: 18px 14px;
  }

  .drop-zone span {
    font-size: 1.04rem;
  }

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

  .photo-guidance span {
    padding-top: 8px;
    font-size: 0.76rem;
    line-height: 1.32;
  }

  .privacy-note {
    font-size: 0.76rem;
    line-height: 1.42;
  }

  .visualizer-workspace {
    padding: 18px 8px 38px;
  }

  .visualizer-board {
    gap: 12px;
  }

  .upload-card,
  .designer-panel,
  .design-stage,
  .stage-empty {
    border-radius: 12px;
  }

  .stage-panel {
    border-color: rgba(207, 255, 40, 0.2);
  }

  .designer-toolbar {
    grid-template-columns: repeat(4, minmax(68px, 1fr));
    overflow-x: auto;
    scrollbar-width: none;
  }

  .designer-toolbar::-webkit-scrollbar {
    display: none;
  }

  .designer-toolbar span {
    padding: 9px 7px;
    font-size: 0.58rem;
    line-height: 1.15;
    letter-spacing: 0.055em;
    text-align: center;
  }

  .stage-wrap {
    padding: 6px;
  }

  .stage-empty {
    min-height: 300px;
    padding: 22px 16px;
  }

  .stage-empty h2 {
    font-size: clamp(1.75rem, 8vw, 2.35rem);
    line-height: 1.03;
  }

  .stage-footer {
    gap: 10px;
    padding: 11px 10px;
  }

  .stage-footer div:first-child {
    gap: 2px;
  }

  .stage-footer strong {
    font-size: 0.98rem;
    line-height: 1.22;
  }

  .stage-footer span {
    font-size: 0.78rem;
    line-height: 1.35;
  }

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

  .button.compact,
  .control-row button,
  .segmented button,
  .control-group .button {
    min-height: 44px;
    border-radius: 10px;
    font-size: 0.8rem;
  }

  .button.compact {
    padding: 9px 10px;
  }

  .control-panel {
    gap: 10px;
    overflow: visible;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
  }

  .control-group {
    gap: 10px;
    padding: 13px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.07);
  }

  .control-group + .control-group {
    margin-top: 10px;
  }

  .control-group .eyebrow {
    margin-bottom: -2px;
    font-size: 0.66rem;
    letter-spacing: 0.07em;
  }

  .control-group label {
    gap: 6px;
    font-size: 0.8rem;
  }

  .control-group input,
  .control-group select {
    min-height: 44px;
    border-radius: 10px;
    padding: 10px 11px;
    font-size: 0.95rem;
  }

  .control-group input[type="range"] {
    min-height: 30px;
  }

  .control-group input[type="color"] {
    min-height: 46px;
  }

  .control-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 7px;
  }

  .control-row.two-up,
  .segmented {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .control-hint {
    font-size: 0.76rem;
    line-height: 1.38;
  }

  .theme-card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 7px;
  }

  .theme-card {
    min-height: 66px;
    padding: 8px;
  }

  .appearance-heading {
    align-items: flex-start;
  }
}

@media (max-width: 360px) {
  .visualizer-hero {
    padding-inline: 10px;
  }

  .visualizer-workspace {
    padding-inline: 6px;
  }

  .designer-toolbar span {
    min-width: 66px;
    padding-inline: 6px;
  }

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

  .env-row,
  .stage-actions,
  .control-row.two-up,
  .segmented {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (orientation: landscape) and (max-height: 520px) {
  .visualizer-hero {
    padding-top: 137px;
    padding-bottom: 18px;
  }

  .visualizer-hero-grid {
    gap: 14px;
  }

  .visualizer-hero h1 {
    font-size: clamp(2rem, 6vw, 3rem);
  }

  .visualizer-workspace {
    padding-top: 12px;
  }

  .visualizer-board {
    gap: 10px;
  }

  .designer-toolbar span {
    padding-block: 7px;
  }

  .stage-wrap {
    padding: 5px;
  }

  .stage-footer {
    padding-block: 8px;
  }

  .control-panel {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .control-group {
    margin-top: 0 !important;
    padding: 10px;
  }

  .appearance-controls {
    grid-column: 1 / -1;
  }

  .theme-card-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

/* RC8 mobile polish: keep visible Visualizer controls comfortably tappable. */
.visualizer-page .drop-zone input[type="file"][data-upload-input] {
  display: none;
}

.visualizer-page .control-group input[type="checkbox"] {
  width: 34px;
  min-width: 34px;
  height: 34px;
  min-height: 34px;
  accent-color: var(--glow);
}

.visualizer-page .control-group input[type="range"] {
  height: 44px;
  min-height: 44px;
  padding: 0;
}

/* Phase 4 proposal layer: visibly separate from accepted design geometry. */
.proposal-path {
  fill: none;
  stroke: #65d9ff;
  stroke-width: 5;
  stroke-dasharray: 13 9;
  filter: drop-shadow(0 0 6px rgba(101, 217, 255, .8));
  pointer-events: none;
}

.proposal-path[data-confidence-tier="LOW"] { stroke: #ffd166; opacity: .72; }
.proposal-path[data-confidence-tier="MEDIUM"] { stroke: #65d9ff; opacity: .9; }
.proposal-path[data-confidence-tier="HIGH"] { stroke: #71f6b5; opacity: 1; }

.detection-panel { border-color: rgba(101, 217, 255, .38); }
.detection-status { margin: 6px 0 10px; }
.confidence-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; font-size: .86rem; }
.confidence-badge { display: inline-flex; min-height: 28px; align-items: center; padding: 3px 9px; border: 1px solid rgba(255,255,255,.22); border-radius: 999px; font-weight: 800; letter-spacing: .04em; }
.confidence-badge[data-tier="LOW"] { color: #ffd166; }
.confidence-badge[data-tier="MEDIUM"] { color: #65d9ff; }
.confidence-badge[data-tier="HIGH"] { color: #71f6b5; }
.proposal-actions { flex-wrap: wrap; }
.realism-experiments summary { cursor: pointer; font-weight: 800; }
.realism-experiments[open] summary { margin-bottom: 10px; }