:root {
  color-scheme: light;
  --paper: oklch(97% 0.012 88);
  --paper-deep: oklch(92% 0.018 88);
  --ink: oklch(18% 0.018 75);
  --muted: oklch(43% 0.025 75);
  --rule: oklch(72% 0.025 80);
  --accent: oklch(47% 0.11 155);
  --accent-strong: oklch(39% 0.1 155);
  --accent-ink: oklch(98% 0.01 90);
  --bad: oklch(43% 0.16 28);
  --focus: oklch(58% 0.16 245);
  --serif: Georgia, 'Times New Roman', serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --ease-out: cubic-bezier(.25, 1, .5, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
}

a { color: var(--accent-strong); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }

.skip-link {
  position: fixed;
  z-index: 20;
  top: var(--space-2);
  left: var(--space-2);
  transform: translateY(-160%);
  background: var(--ink);
  color: var(--paper);
  padding: var(--space-2) var(--space-4);
}
.skip-link:focus { transform: translateY(0); }

.container { width: min(100% - 2rem, 72rem); margin-inline: auto; }
.prose { width: min(100% - 2rem, 46rem); margin-inline: auto; }
.masthead { border-bottom: 1px solid var(--rule); }
.masthead-inner {
  min-height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}
.brand {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 700;
  text-decoration: none;
}
.nav { display: flex; gap: var(--space-5); flex-wrap: wrap; }
.nav a,
.footer-links a { display: inline-flex; min-height: 2.75rem; align-items: center; }
.nav a { color: var(--muted); font-size: .875rem; font-weight: 650; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(16rem, .6fr);
  gap: var(--space-8);
  padding-block: clamp(var(--space-8), 10vw, var(--space-9));
  border-bottom: 3px solid var(--ink);
}
.eyebrow,
.rule-label,
.domain-label {
  margin: 0 0 var(--space-3);
  color: var(--muted);
  font-size: .75rem;
  font-weight: 750;
  letter-spacing: .1em;
  text-transform: uppercase;
}
h1,
h2,
h3 {
  font-family: var(--serif);
  line-height: 1.08;
  letter-spacing: -.025em;
}
h1 { max-width: 13ch; margin: 0; font-size: clamp(3rem, 7vw, 5.25rem); font-weight: 500; }
h2 { margin: 0 0 var(--space-5); font-size: clamp(2rem, 4vw, 3.25rem); }
h3 { font-size: 1.5rem; }
.lede { max-width: 58ch; margin: var(--space-6) 0 0; font-size: 1.15rem; }
.boundary { align-self: end; border-top: 1px solid var(--ink); padding-top: var(--space-4); }
.boundary strong { display: block; margin-bottom: var(--space-3); font-family: var(--serif); font-size: 1.3rem; }

.section { padding-block: var(--space-9); border-bottom: 1px solid var(--rule); }
.section-heading { display: grid; grid-template-columns: 9rem minmax(0, 1fr); gap: var(--space-6); }
.section-copy { max-width: 62ch; }
.diagnostic-intro { margin-bottom: var(--space-7); }
.diagnostic-group { margin: 0; padding: var(--space-6) 0; border: 0; border-top: 1px solid var(--rule); }
.diagnostic-group:last-child { border-bottom: 1px solid var(--rule); }
.diagnostic-group.is-invalid { border-left: 4px solid var(--bad); padding-left: var(--space-4); }
.diagnostic-group legend {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: var(--space-4);
  width: 100%;
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.2vw, 1.6rem);
  font-weight: 650;
  line-height: 1.35;
}
.prompt-number { color: var(--accent-strong); font-family: var(--sans); font-size: .8rem; letter-spacing: .08em; padding-top: .35rem; }
.diagnostic-group .domain-label { margin: var(--space-3) 0 var(--space-4) 4rem; }
.option-list { display: grid; gap: var(--space-2); margin-left: 4rem; }
.option {
  display: grid;
  grid-template-columns: 1.3rem minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
  min-height: 2.75rem;
  padding: var(--space-3);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 90ms var(--ease-out), border-color 90ms var(--ease-out);
}
.option:hover { background: var(--paper-deep); }
.option:has(input:checked) { border-color: var(--accent); background: color-mix(in oklch, var(--accent) 8%, var(--paper)); }
.option input { width: 1.1rem; height: 1.1rem; margin-top: .2rem; accent-color: var(--accent); }

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4); margin-top: var(--space-6); }
.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent-strong);
  border-radius: 2px;
  background: var(--accent);
  color: var(--accent-ink);
  cursor: pointer;
  font: 750 .9rem/1 var(--sans);
  padding: .9rem 1.25rem;
  text-decoration: none;
  transition: background 90ms var(--ease-out), transform 90ms var(--ease-out);
}
.button:hover { background: var(--accent-strong); text-decoration: none; transform: translateY(-1px); }
.button:active { transform: translateY(1px); }
.button:disabled,
.button[aria-disabled='true'] { background: var(--paper-deep); border-color: var(--rule); color: var(--muted); cursor: not-allowed; transform: none; }
.button-secondary { background: transparent; color: var(--accent-strong); }
.status { min-height: 1.6em; color: var(--muted); font-size: .9rem; }

.result { margin-top: var(--space-7); padding: var(--space-7); border: 2px solid var(--ink); background: var(--paper-deep); }
.result-grid { display: grid; grid-template-columns: minmax(8rem, .4fr) 1fr; gap: var(--space-7); }
.result-score { margin: 0; font: 600 clamp(2.5rem, 6vw, 4.5rem)/1 var(--serif); font-variant-numeric: tabular-nums; }
.result h3 { margin-top: 0; }
.result li + li { margin-top: var(--space-2); }

.offer { display: grid; grid-template-columns: minmax(12rem, .45fr) 1fr; gap: var(--space-8); align-items: start; }
.price { margin: 0; font: 500 clamp(3rem, 7vw, 5rem)/1 var(--serif); font-variant-numeric: tabular-nums; }
.offer-list { padding-left: 1.2rem; }
.offer-list li + li { margin-top: var(--space-2); }

.legal h1 { max-width: none; font-size: clamp(2.6rem, 6vw, 4.5rem); }
.legal h2 { margin-top: var(--space-8); font-size: 1.8rem; }
.legal main { padding-block: var(--space-8) var(--space-9); }
.notice { padding: var(--space-5); border-left: 4px solid var(--accent); background: var(--paper-deep); }

.footer { padding-block: var(--space-7); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: var(--space-7); }
.footer p { max-width: 65ch; color: var(--muted); font-size: .85rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: var(--space-4); align-content: start; }

[hidden] { display: none !important; }

@media (max-width: 48rem) {
  .masthead-inner { align-items: flex-start; flex-direction: column; padding-block: var(--space-4); }
  .hero,
  .section-heading,
  .result-grid,
  .offer,
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .section { padding-block: var(--space-8); }
  .diagnostic-group legend { grid-template-columns: 2.2rem minmax(0, 1fr); }
  .diagnostic-group .domain-label,
  .option-list { margin-left: 0; }
  .result { padding: var(--space-5); }
}

@media print {
  .masthead,
  .hero,
  #diagnostic-form,
  .offer,
  .footer,
  #print-result { display: none !important; }
  .section { padding: 0; border: 0; }
  .result { display: block !important; border: 1px solid #000; background: #fff; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}