:root {
  --radius: 0.625rem;
  /* Harpa Pro — warm paper + navy ink */
  --background: oklch(0.965 0.008 85);
  --foreground: oklch(0.35 0.04 265);
  --card: oklch(0.99 0.008 90);
  --card-foreground: oklch(0.35 0.04 265);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.35 0.04 265);
  --primary: oklch(0.35 0.04 265);
  --primary-foreground: oklch(0.99 0.008 90);
  --secondary: oklch(0.94 0.012 85);
  --secondary-foreground: oklch(0.35 0.04 265);
  --muted: oklch(0.94 0.012 85);
  --muted-foreground: oklch(0.5 0.02 265);
  /* Accent stays vivid (#e55d22) for visual identity. Two paired tokens:
     - --accent-foreground = cream, used as text on top of the vivid
       --accent fill. NOTE: only 3.45:1 contrast — fails WCAG AA 4.5:1
       for body text but passes AA Large (3:1). Chosen for brand look
       over a strict a11y pass. Lighthouse will flag this.
     - --accent-ink = darker orange, used wherever the brand colour is
       applied as text on light backgrounds via `.text-accent-ink`
       (5.2:1 on paper — passes AA). */
  --accent: oklch(0.646 0.182 41);
  --accent-foreground: oklch(0.99 0.008 90);
  --accent-ink: oklch(0.542 0.158 39);
  --destructive: oklch(0.577 0.245 27.325);
  --destructive-foreground: oklch(0.984 0.003 247.858);
  --border: oklch(0.74 0.012 85);
  --input: oklch(0.74 0.012 85);
  --ring: oklch(0.646 0.182 41);
  --chart-1: oklch(0.646 0.222 41.116);
  --chart-2: oklch(0.6 0.118 184.704);
  --chart-3: oklch(0.398 0.07 227.392);
  --chart-4: oklch(0.828 0.189 84.429);
  --chart-5: oklch(0.769 0.188 70.08);
  --sidebar: oklch(0.984 0.003 247.858);
  --sidebar-foreground: oklch(0.129 0.042 264.695);
  --sidebar-primary: oklch(0.208 0.042 265.755);
  --sidebar-primary-foreground: oklch(0.984 0.003 247.858);
  --sidebar-accent: oklch(0.968 0.007 247.896);
  --sidebar-accent-foreground: oklch(0.208 0.042 265.755);
  --sidebar-border: oklch(0.929 0.013 255.508);
  --sidebar-ring: oklch(0.704 0.04 256.788);
}
@font-face { font-family: 'Inter Variable'; font-style: normal; font-weight: 100 900; font-display: swap; src: url('./inter-latin-wght-normal.woff2') format('woff2'); }
:root {
  color-scheme: light;
  --hairline: color-mix(in oklab, var(--border) 60%, transparent);
  font:
    15px/1.6 'Inter Variable',
    ui-sans-serif,
    system-ui,
    -apple-system,
    'Segoe UI',
    sans-serif;
  font-feature-settings: 'ss01', 'cv11';
  color: var(--foreground);
  background: var(--background);
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
button,
input {
  font: inherit;
}
button,
.file-label {
  cursor: pointer;
}
button:focus-visible,
a:focus-visible,
canvas:focus-visible,
summary:focus-visible,
input:focus-visible + * {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}
[hidden] {
  display: none !important;
}
header {
  min-height: 64px;
  border-bottom: 1px solid var(--hairline);
  background: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px max(24px, calc((100% - 1200px) / 2));
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--foreground);
  text-decoration: none;
}
.wordmark img {
  border-radius: calc(var(--radius) - 4px);
}
.privacy {
  color: var(--muted-foreground);
  font-size: 12px;
}
.privacy span {
  padding-right: 6px;
  color: var(--accent-ink);
}
main {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  min-height: calc(100svh - 112px);
  max-width: 1200px;
  margin: 24px auto;
  border: 1px solid var(--hairline);
  border-radius: calc(var(--radius) + 6px);
  overflow: hidden;
  background: var(--card);
}
aside {
  padding: 32px 24px;
  border-right: 1px solid var(--hairline);
}
.eyebrow {
  color: var(--accent-ink);
  font-size: 10px;
  letter-spacing: 1.8px;
  font-weight: 600;
}
h1 {
  font-size: 28px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.9px;
  margin: 15px 0;
}
.intro {
  font-size: 13px;
  color: var(--muted-foreground);
  margin-bottom: 28px;
}
.file-label {
  background: var(--accent);
  border-radius: calc(var(--radius) - 4px);
  padding: 11px 20px;
  color: var(--accent-foreground);
  font-size: 14px;
  font-weight: 500;
  display: flex;
  justify-content: space-between;
  box-shadow: 0 1px 2px color-mix(in oklab, var(--foreground) 8%, transparent);
  transition: filter 150ms;
}
.file-label:hover {
  filter: brightness(0.95);
}
.file-label.disabled {
  opacity: 0.5;
  pointer-events: none;
}
#model-file {
  position: absolute;
  width: 1px;
  height: 1px;
  clip-path: inset(50%);
  overflow: hidden;
}
.file-label:has(+ input:focus-visible) {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}
.hint,
.footnote {
  color: var(--muted-foreground);
  font-size: 11px;
}
.hint {
  text-align: center;
  margin-top: 8px;
}
.status-box {
  margin: 25px 0;
  font-size: 12px;
}
progress {
  width: 100%;
  accent-color: var(--accent);
  height: 5px;
  display: block;
  margin-top: 15px;
}
.text-button {
  background: none;
  border: none;
  padding: 8px 0;
  color: var(--accent-ink);
  text-decoration: underline;
  font-size: 12px;
}
.file-info {
  padding: 18px 0 0;
}
.file-info h2 {
  font-size: 13px;
  overflow-wrap: anywhere;
  margin: 0;
}
.file-info p {
  font-size: 11px;
  color: var(--muted-foreground);
  margin: 3px 0;
}
dl {
  display: grid;
  grid-template-columns: 1fr auto;
  font-size: 12px;
  border-top: 1px solid var(--hairline);
  padding-top: 15px;
  gap: 8px;
}
dt {
  color: var(--muted-foreground);
}
dd {
  margin: 0;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
details {
  font-size: 12px;
  margin: 24px 0;
}
summary {
  cursor: pointer;
  color: var(--muted-foreground);
}
details ul {
  padding-left: 18px;
  max-height: 200px;
  overflow: auto;
  color: var(--muted-foreground);
}
details li {
  margin-bottom: 10px;
  overflow-wrap: anywhere;
}
.notice {
  background: color-mix(in oklab, var(--accent) 5%, var(--card));
  border: 1px solid color-mix(in oklab, var(--accent) 20%, transparent);
  border-radius: var(--radius);
  padding: 15px;
  margin-top: 28px;
  font-size: 11px;
  color: var(--muted-foreground);
}
.notice strong {
  color: var(--foreground);
}
.notice p {
  margin: 5px 0 0;
}
.footnote {
  margin-top: 22px;
}
.footnote a {
  color: var(--accent-ink);
  text-underline-offset: 3px;
}
.viewer {
  position: relative;
  min-height: 650px;
  background: var(--background);
  overflow: hidden;
}
#canvas {
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  touch-action: none;
}
.toolbar {
  position: absolute;
  z-index: 2;
  top: 20px;
  left: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.toolbar button {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: calc(var(--radius) - 4px);
  padding: 7px 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--foreground);
  transition: background-color 150ms;
}
.toolbar button:disabled {
  opacity: 0.45;
  cursor: default;
}
.toolbar button:not(:disabled):hover {
  background: var(--secondary);
}
.empty-state {
  position: absolute;
  pointer-events: none;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  width: 80%;
  color: var(--muted-foreground);
}
.empty-state .cube {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border: 1px solid var(--hairline);
  border-radius: calc(var(--radius) + 6px);
  background: var(--card);
  color: var(--accent-ink);
}
.cube svg {
  width: 32px;
  height: 32px;
}
.empty-state h2 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.4px;
  color: var(--foreground);
}
.empty-state p {
  font-size: 12px;
}
.view-caption {
  position: absolute;
  bottom: 22px;
  left: 24px;
  right: 24px;
  font-size: 10px;
  color: var(--muted-foreground);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  pointer-events: none;
}
.view-caption span {
  background: color-mix(in oklab, var(--background) 90%, transparent);
  padding: 3px 5px;
  border-radius: 3px;
}
@media (max-width: 760px) {
  header {
    min-height: 64px;
    gap: 12px;
    padding: 12px 18px;
  }
  .privacy {
    font-size: 10px;
    max-width: 110px;
    line-height: 1.4;
  }
  main {
    grid-template-columns: 1fr;
    margin: 16px 12px;
  }
  aside {
    padding: 24px;
    border-right: 0;
  }
  h1 {
    font-size: 26px;
  }
  .viewer {
    min-height: 65svh;
  }
  .toolbar {
    gap: 5px;
    left: 16px;
    right: 16px;
  }
  .toolbar button {
    padding: 7px 10px;
  }
  .view-caption {
    flex-direction: column;
    gap: 4px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .file-label,
  .toolbar button {
    transition: none;
  }
}