:root {
  color-scheme: dark;
  --ink: #eaf5fb;
  --muted: #93aabc;
  --line: rgba(151, 197, 222, 0.2);
  --panel: rgba(4, 15, 26, 0.78);
  --panel-strong: rgba(5, 18, 31, 0.94);
  --accent: #90dbf6;
  --accent-strong: #42b9e6;
  --danger: #ff8f88;
}

html[data-environment="ccm-homepage"] {
  --ink: #fffaff;
  --muted: #d9cdf2;
  --line: rgba(244, 225, 255, 0.26);
  --panel: rgba(46, 24, 91, 0.72);
  --panel-strong: rgba(40, 20, 82, 0.93);
  --accent: #f1b3e2;
  --accent-strong: #d863c5;
}

* { box-sizing: border-box; }

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #06111d;
  color: var(--ink);
  font-family: "Avenir Next", Avenir, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-synthesis: none;
}

html[data-environment="ccm-homepage"],
html[data-environment="ccm-homepage"] body { background: #4b2e9b; }

button { font: inherit; color: inherit; }

.viewer-shell {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 480px;
  isolation: isolate;
  background:
    radial-gradient(circle at 50% 42%, rgba(23, 96, 145, 0.28), transparent 42%),
    #06111d;
}

.viewer-shell[data-environment="ccm-homepage"] {
  background:
    radial-gradient(circle at 18% 72%, rgba(235, 74, 184, 0.25), transparent 44%),
    linear-gradient(135deg, #6e86e8, #49349f 58%, #5b248e);
}

#renderCanvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
  touch-action: none;
  opacity: 0;
  transition: opacity 420ms ease;
}

.is-ready #renderCanvas { opacity: 1; }

html[data-harness="true"] .topbar,
html[data-harness="true"] .interaction-card,
html[data-harness="true"] .telemetry,
html[data-harness="true"] .control-dock,
html[data-harness="true"] .debug-panel,
html[data-harness="true"] .load-card {
  display: none !important;
}

html[data-harness="true"] #renderCanvas {
  opacity: 1;
}

html[data-chrome="storefront"] .topbar,
html[data-chrome="storefront"] .interaction-card,
html[data-chrome="storefront"] .telemetry,
html[data-chrome="storefront"] .control-dock,
html[data-chrome="storefront"] .debug-panel {
  display: none !important;
}

html[data-chrome="storefront"] .viewer-shell {
  min-height: 0;
}

html[data-chrome="storefront"] .load-card {
  left: 50%;
  top: 50%;
  width: 48px;
  height: 48px;
  min-width: 0;
  padding: 0;
  transform: translate(-50%, -50%);
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  text-align: center;
}

html[data-chrome="storefront"] .load-card .load-kicker,
html[data-chrome="storefront"] .load-card h2,
html[data-chrome="storefront"] .load-card .load-scan,
html[data-chrome="storefront"] .load-card p {
  display: none;
}

html[data-chrome="storefront"] .load-spinner {
  display: block;
  width: 40px;
  height: 40px;
  margin: 4px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: proof-spinner 0.8s linear infinite;
}

html[data-chrome="storefront"] .is-ready .load-card {
  display: none;
}

.topbar,
.interaction-card,
.telemetry,
.control-dock,
.debug-panel,
.load-card,
.fatal-card {
  position: absolute;
  z-index: 4;
}

.topbar {
  top: max(18px, env(safe-area-inset-top));
  left: clamp(16px, 3vw, 42px);
  right: clamp(16px, 3vw, 42px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  pointer-events: none;
}

.identity {
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
  padding: 10px 13px;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(16px) saturate(125%);
}

.identity p,
.identity h1 { margin: 0; }
.identity p {
  margin-bottom: 2px;
  color: var(--accent);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.identity h1 {
  overflow: hidden;
  font-size: clamp(11px, 1.3vw, 14px);
  font-weight: 650;
  letter-spacing: 0.02em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.live-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--accent-strong);
  box-shadow: 0 0 0 5px rgba(66, 185, 230, 0.13), 0 0 16px rgba(85, 202, 244, 0.7);
}

.engine-badge {
  padding: 9px 11px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  backdrop-filter: blur(16px);
}

.load-card,
.fatal-card {
  top: 50%;
  left: 50%;
  width: min(350px, calc(100% - 42px));
  padding: 22px;
  transform: translate(-50%, -50%);
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
  text-align: center;
  backdrop-filter: blur(18px);
  transition: opacity 260ms ease, visibility 260ms ease;
}

.is-ready .load-card { opacity: 0; visibility: hidden; }
.load-card p,
.load-card h2,
.fatal-card p { margin: 0; }
.load-kicker,
.fatal-card p {
  color: var(--accent);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.load-card h2 { margin: 6px 0 8px; font-size: 18px; }
.load-card > p:last-of-type { color: var(--muted); font-size: 12px; line-height: 1.5; }
.load-scan {
  display: block;
  width: 84px;
  height: 2px;
  margin: 0 auto 16px;
  overflow: hidden;
  background: rgba(130, 202, 234, 0.16);
}
.load-scan::after {
  content: "";
  display: block;
  width: 45%;
  height: 100%;
  background: var(--accent);
  animation: scan 1.2s ease-in-out infinite alternate;
}
@keyframes scan { to { transform: translateX(125%); } }
@keyframes proof-spinner { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .load-scan::after,
  .load-spinner {
    animation: none;
  }
}
.load-card button {
  margin-top: 15px;
  padding: 8px 12px;
  border: 1px solid var(--accent);
  background: transparent;
  cursor: pointer;
}

.fatal-card { border-color: rgba(255, 143, 136, 0.5); }
.fatal-card strong { display: block; margin-top: 8px; color: var(--danger); font-size: 12px; line-height: 1.5; }

.interaction-card {
  top: 50%;
  left: clamp(16px, 3vw, 42px);
  display: grid;
  gap: 7px;
  transform: translateY(-50%);
  padding: 12px;
  border: 1px solid var(--line);
  background: rgba(4, 15, 26, 0.58);
  color: var(--muted);
  pointer-events: none;
  backdrop-filter: blur(12px);
}
.interaction-card p { margin: 0; font-size: 9px; text-transform: uppercase; letter-spacing: 0.08em; }
.interaction-card strong { display: inline-block; min-width: 42px; color: var(--ink); }

.telemetry {
  right: clamp(16px, 3vw, 42px);
  bottom: 88px;
  display: grid;
  min-width: 188px;
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(16px);
}
.telemetry div {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(151, 197, 222, 0.11);
}
.telemetry div:last-child { border-bottom: 0; }
.telemetry span { color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: 0.08em; }
.telemetry strong { font-size: 10px; font-variant-numeric: tabular-nums; }

.control-dock {
  left: 50%;
  bottom: max(18px, env(safe-area-inset-bottom));
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 8px;
  width: min(760px, calc(100% - 32px));
  transform: translateX(-50%);
}

.scene-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 0 0 106px;
  min-height: 46px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  backdrop-filter: blur(16px);
  cursor: pointer;
}
.scene-toggle::after { content: "+"; color: var(--accent); font-size: 16px; font-weight: 500; line-height: 1; }
.scene-toggle[aria-expanded="true"]::after { content: "−"; }

.scene-presets {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: calc(100% + 8px);
  left: 0;
  display: grid;
  flex: 0 0 100%;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 1fr);
  max-height: min(68vh, 610px);
  overflow-y: auto;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.44);
  backdrop-filter: blur(16px);
  overscroll-behavior: contain;
}
.scene-presets:not(.is-open) { display: none; }
.picker-step { min-width: 0; padding: 14px; }
.picker-step + .picker-step { border-left: 1px solid var(--line); }
.picker-step > header { display: flex; align-items: center; gap: 10px; margin-bottom: 11px; }
.picker-step > header > span {
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  font-size: 10px;
  font-weight: 800;
}
.picker-step > header div { display: grid; gap: 1px; }
.picker-step > header strong { font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }
.picker-step > header small { color: var(--muted); font-size: 9px; }
.product-options,
.base-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.product-options button,
.base-options button {
  display: grid;
  min-height: 48px;
  gap: 3px;
  padding: 8px 10px;
  border: 1px solid rgba(151, 197, 222, 0.13);
  background: rgba(126, 191, 222, 0.025);
  color: var(--muted);
  text-align: left;
  cursor: pointer;
}
.product-options button strong,
.base-options button strong { color: var(--ink); font-size: 9px; letter-spacing: 0.04em; }
.product-options button small,
.base-options button small { overflow: hidden; font-size: 8px; line-height: 1.25; text-overflow: ellipsis; }
.product-options button[aria-pressed="true"],
.base-options button[aria-pressed="true"] {
  border-color: rgba(113, 209, 246, 0.58);
  background: rgba(95, 199, 239, 0.16);
  color: var(--ink);
}
.picker-step.is-disabled { opacity: 0.48; }
.picker-step.is-disabled button { cursor: not-allowed; }

.environment-presets,
.pose-presets {
  display: grid;
  flex: 1 1 auto;
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(16px);
}
.environment-presets {
  flex: 0 0 164px;
  grid-template-columns: repeat(2, 1fr);
}
.pose-presets { grid-template-columns: repeat(5, 1fr); }
.environment-presets button,
.pose-presets button,
.debug-trigger {
  min-height: 46px;
  padding: 8px 12px;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
}
.environment-presets button:last-child,
.pose-presets button:last-child { border-right: 0; }
.environment-presets button[aria-pressed="true"],
.pose-presets button[aria-pressed="true"] { background: rgba(95, 199, 239, 0.14); color: var(--ink); }
html[data-environment="ccm-homepage"] .environment-presets button[aria-pressed="true"],
html[data-environment="ccm-homepage"] .pose-presets button[aria-pressed="true"],
html[data-environment="ccm-homepage"] .product-options button[aria-pressed="true"],
html[data-environment="ccm-homepage"] .base-options button[aria-pressed="true"] {
  background: rgba(235, 74, 184, 0.22);
}
.debug-trigger {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  backdrop-filter: blur(16px);
}

.debug-panel {
  top: max(72px, calc(env(safe-area-inset-top) + 64px));
  right: clamp(16px, 3vw, 42px);
  width: min(360px, calc(100% - 32px));
  max-height: calc(100% - 180px);
  overflow: auto;
  padding: 16px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(20px);
}
.debug-panel[hidden] { display: none; }
.debug-panel header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 14px; }
.debug-panel header p,
.debug-panel header h2 { margin: 0; }
.debug-panel header p,
.quality-block > p { color: var(--accent); font-size: 9px; font-weight: 750; letter-spacing: 0.12em; text-transform: uppercase; }
.debug-panel header h2 { margin-top: 3px; font-size: 16px; }
.debug-panel header button { border: 0; background: transparent; color: var(--muted); font-size: 24px; line-height: 1; cursor: pointer; }

.layer-grid,
.quality-options { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; }
.layer-grid button,
.quality-options button {
  display: grid;
  gap: 3px;
  padding: 10px;
  border: 1px solid var(--line);
  background: rgba(134, 198, 229, 0.03);
  text-align: left;
  cursor: pointer;
}
.layer-grid button[aria-pressed="true"],
.quality-options button[aria-pressed="true"] { border-color: rgba(113, 209, 246, 0.62); background: rgba(83, 184, 226, 0.13); }
.layer-grid span,
.quality-options strong { font-size: 11px; }
.layer-grid small,
.quality-options span { color: var(--muted); font-size: 9px; }
.quality-block { margin-top: 18px; }
.quality-block > p { margin: 0 0 8px; }
.quality-options { grid-template-columns: repeat(3, 1fr); }
.quality-options button { text-align: center; }

.render-facts { display: grid; gap: 0; margin: 18px 0 0; }
.render-facts div { display: flex; justify-content: space-between; gap: 18px; padding: 8px 0; border-top: 1px solid rgba(151, 197, 222, 0.12); }
.render-facts dt { color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: 0.08em; }
.render-facts dd { margin: 0; font-size: 9px; text-align: right; }

@media (max-width: 720px) {
  .topbar { top: max(10px, env(safe-area-inset-top)); left: 10px; right: 10px; }
  .identity { max-width: calc(100% - 92px); padding: 8px 10px; }
  .identity h1 { font-size: 10px; }
  .engine-badge { padding: 8px; font-size: 8px; }
  .interaction-card { display: none; }
  .telemetry {
    right: 10px;
    bottom: calc(122px + env(safe-area-inset-bottom));
    min-width: 158px;
    background: rgba(4, 15, 26, 0.65);
  }
  .telemetry div { gap: 12px; padding: 6px 8px; }
  .telemetry div:nth-child(2),
  .telemetry div:nth-child(3) { display: none; }
  .control-dock { bottom: max(10px, env(safe-area-inset-bottom)); width: calc(100% - 20px); }
  .scene-toggle {
    flex: 0 0 92px;
    min-height: 44px;
    padding: 7px 11px;
  }
  .scene-presets {
    grid-template-columns: 1fr;
    max-height: min(67vh, 590px);
  }
  .picker-step { padding: 11px; }
  .picker-step + .picker-step { border-top: 1px solid var(--line); border-left: 0; }
  .product-options,
  .base-options { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-options button,
  .base-options button { min-height: 45px; padding: 7px 8px; }
  .environment-presets { flex: 0 0 108px; }
  .environment-presets button { min-height: 44px; padding: 7px 4px; font-size: 8px; }
  .pose-presets button { min-height: 44px; padding: 7px 4px; font-size: 9px; }
  .pose-presets button:nth-child(4),
  .pose-presets button:nth-child(5) { display: none; }
  .pose-presets { grid-template-columns: repeat(3, 1fr); }
  .debug-trigger { padding: 7px 9px; font-size: 9px; }
  .debug-panel { top: auto; right: 10px; bottom: calc(64px + env(safe-area-inset-bottom)); width: calc(100% - 20px); max-height: min(62vh, 560px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}