:root {
  color-scheme: dark;
  --bg: #090d18;
  --surface: #111827;
  --surface-raised: #182235;
  --line: #2a3850;
  --text: #f4f7ff;
  --muted: #aab8cf;
  --accent: #78dce8;
  --accent-strong: #a6f4ff;
  --warning: #ffd866;
  --danger: #ff6b8a;
  --pass: #73e2a7;
  --focus: #ffd866;
  --radius: 18px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.24);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 20% 0%, rgba(120, 220, 232, 0.12), transparent 34rem),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
}

a { color: var(--accent-strong); }
a:hover { text-decoration-thickness: 2px; }

button, input, textarea { font: inherit; }
button, .file-label { min-height: 44px; }

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
.file-label:focus-within,
a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -10rem;
  z-index: 10;
  padding: 0.75rem 1rem;
  background: var(--text);
  color: var(--bg);
  border-radius: 0 0 8px 8px;
}
.skip-link:focus { top: 0; }

.site-header,
.workspace,
footer {
  width: min(1180px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: end;
  padding: 3.5rem 0 2rem;
}

.eyebrow,
.step {
  margin: 0 0 0.35rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1, h2, legend { letter-spacing: -0.025em; }
h1 { margin: 0; max-width: 18ch; font-size: clamp(2rem, 5vw, 4.35rem); line-height: 0.98; }
h2 { margin: 0; font-size: 1.35rem; }
.lede { max-width: 66ch; margin: 1.25rem 0 0; color: var(--muted); font-size: 1.05rem; }

.privacy-pill {
  flex: none;
  margin: 0;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.88rem;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.96fr);
  gap: 1.25rem;
  align-items: start;
}

.panel,
.preview-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel { background: rgba(17, 24, 39, 0.94); padding: clamp(1rem, 2.5vw, 1.6rem); }
.section-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: center; }

fieldset {
  margin: 1.4rem 0 0;
  padding: 1.1rem 0 0;
  border: 0;
  border-top: 1px solid var(--line);
}

legend { padding: 0 0.65rem 0 0; font-weight: 700; color: var(--text); }
label { display: grid; gap: 0.45rem; color: var(--muted); font-size: 0.9rem; }

input[type="text"],
input[type="number"],
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  padding: 0.68rem 0.75rem;
}

textarea { resize: vertical; margin-bottom: 0; }

.field-grid,
.color-grid {
  display: grid;
  gap: 0.85rem;
}
.two-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.three-columns { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.color-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.compact-grid { margin-top: 1rem; }

.color-control {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 0.5rem;
}

input[type="color"] {
  width: 44px;
  height: 44px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
}

.check-list { display: grid; gap: 0.65rem; }
.check-row {
  display: grid;
  grid-template-columns: 1.25rem minmax(0, 1fr);
  align-items: start;
  gap: 0.65rem;
  color: var(--text);
}
.check-row input { width: 1.1rem; height: 1.1rem; margin-top: 0.2rem; accent-color: var(--accent); }

.quiet-button,
.secondary-button,
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  padding: 0.62rem 0.9rem;
  cursor: pointer;
  font-weight: 700;
}
.quiet-button,
.secondary-button { border: 1px solid var(--line); background: transparent; color: var(--text); }
.primary-button { border: 1px solid var(--accent); background: var(--accent); color: #071116; }
.quiet-button:hover,
.secondary-button:hover { border-color: var(--accent); }
.primary-button:hover { background: var(--accent-strong); }

.results-column { display: grid; gap: 1.25rem; position: sticky; top: 1rem; }
.preview-card {
  min-height: 210px;
  padding: 1.4rem;
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 0.9rem;
  transition: background-color 120ms ease, color 120ms ease;
}
.preview-label { margin: 0; opacity: 0.78; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; }
.sample-button { border: 2px solid currentColor; border-radius: 10px; background: transparent; padding: 0.65rem 1.2rem; color: inherit; font-weight: 700; }
.sample-copy { margin: 0; max-width: 44ch; }

.summary { margin: 0; color: var(--muted); font-variant-numeric: tabular-nums; }
.metric-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.6rem; margin: 1.25rem 0; }
.metric {
  padding: 0.75rem;
  background: var(--surface-raised);
  border-radius: 10px;
}
.metric span { display: block; color: var(--muted); font-size: 0.78rem; }
.metric strong { font-size: 1.35rem; font-variant-numeric: tabular-nums; }

.result-list { display: grid; gap: 0; padding: 0; margin: 0; list-style: none; }
.result-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.8rem;
  padding: 0.9rem 0;
  border-top: 1px solid var(--line);
}
.status-mark {
  display: inline-grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  border: 2px solid currentColor;
  font-weight: 900;
}
.status-pass { color: var(--pass); }
.status-review { color: var(--warning); }
.status-fail { color: var(--danger); }
.result-title { margin: 0; font-weight: 700; color: var(--text); }
.result-detail { margin: 0.25rem 0 0; color: var(--muted); font-size: 0.88rem; }
.criterion { font-variant-numeric: tabular-nums; color: var(--text); }

.export-actions { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1.25rem; }
.file-label { cursor: pointer; }
.action-status { min-height: 1.5em; margin: 0.7rem 0 0; color: var(--muted); }

.scope-note { border-left: 3px solid var(--warning); padding: 0.15rem 0 0.15rem 1rem; }
.scope-note h2 { font-size: 1.05rem; }
.scope-note p, .scope-note ul { color: var(--muted); }
.scope-note ul { padding-left: 1.2rem; }
.paid-review {
  margin-top: 1.25rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-raised);
}
.paid-review p { margin: 0 0 0.65rem; }
.paid-review strong { color: var(--text); }
.paid-review .paid-review-label { color: var(--accent); font-size: 0.75rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.review-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--accent);
  border-radius: 10px;
  color: var(--accent-strong);
  font-weight: 800;
  text-decoration: none;
}
.review-link:hover { background: rgba(120, 220, 232, 0.1); }

footer { padding: 2.25rem 0 3rem; color: var(--muted); font-size: 0.85rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (max-width: 860px) {
  .workspace { grid-template-columns: 1fr; }
  .results-column { position: static; }
}

@media (max-width: 600px) {
  .site-header { align-items: start; flex-direction: column; padding-top: 2.25rem; }
  .two-columns, .three-columns, .color-grid, .metric-strip { grid-template-columns: 1fr; }
  .section-heading { align-items: start; flex-direction: column; }
  .quiet-button, .primary-button, .secondary-button, .file-label { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}

@media print {
  :root { color-scheme: light; --bg: #fff; --surface: #fff; --surface-raised: #f2f4f7; --line: #bcc5d2; --text: #111827; --muted: #3e4c61; --accent: #075985; --accent-strong: #075985; --warning: #7c4a03; --danger: #9f1239; --pass: #166534; --shadow: none; }
  body { background: #fff; }
  .site-header, .workspace, footer { width: 100%; }
  .workspace { display: block; }
  .controls-panel, .preview-card, .export-actions, .action-status, .privacy-pill, footer { display: none; }
  .panel { border: 0; padding: 0; }
  .scope-note { margin-top: 1.5rem; }
}