:root {
  --bg: #ffffff;
  --bg-soft: #f6f7fb;
  --text: #14162b;
  --muted: #575b72;
  --border: #e3e5ef;
  --accent: #4f46e5;
  --accent-contrast: #ffffff;
  --max: 68rem;
  --prose: 42rem;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0f1a;
    --bg-soft: #151827;
    --text: #e9eaf3;
    --muted: #a4a8c0;
    --border: #262a3d;
    --accent: #a5a8ff;
    --accent-contrast: #0d0f1a;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

a {
  color: var(--accent);
  text-underline-offset: 0.15em;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  background: var(--bg);
  padding: 0.5rem 1rem;
  z-index: 10;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.brand img {
  width: 28px;
  height: 28px;
}

.site-header nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.site-header nav a:hover {
  color: var(--text);
}

/* Hero */
.hero {
  padding: 6rem 0 5rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 7vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

.tagline {
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  font-weight: 600;
  margin: 0 0 1.25rem;
}

.lede {
  max-width: 38rem;
  margin: 0 auto 2.25rem;
  color: var(--muted);
  font-size: 1.125rem;
}

.badge {
  display: inline-block;
  margin-bottom: 1.5rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--muted);
}

.button {
  display: inline-block;
  padding: 0.8rem 1.6rem;
  border-radius: 0.6rem;
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
  text-decoration: none;
}

.button:hover {
  filter: brightness(1.08);
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section-soft {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section h2 {
  font-size: clamp(1.6rem, 4vw, 2rem);
  letter-spacing: -0.02em;
  text-align: center;
  margin: 0 0 2.5rem;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  counter-reset: step;
}

.steps li {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  padding: 1.75rem;
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  display: inline-grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: 700;
  margin-bottom: 1rem;
}

.steps h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

.steps p {
  margin: 0;
  color: var(--muted);
}

.cta {
  text-align: center;
}

.cta p {
  color: var(--muted);
  max-width: 34rem;
  margin: 0 auto 2rem;
}

.cta h2 {
  margin-bottom: 1rem;
}

/* Legal / prose pages */
.prose {
  max-width: var(--prose);
  margin: 0 auto;
  padding: 3.5rem 1.25rem 4.5rem;
}

.prose h1 {
  font-size: clamp(2rem, 5vw, 2.6rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.5rem;
}

.prose h2 {
  font-size: 1.35rem;
  margin: 2.75rem 0 0.75rem;
  letter-spacing: -0.01em;
}

.prose h3 {
  font-size: 1.05rem;
  margin: 1.5rem 0 0.5rem;
}

.prose ul {
  padding-left: 1.25rem;
}

.prose li + li {
  margin-top: 0.4rem;
}

.meta {
  color: var(--muted);
  margin: 0 0 2rem;
}

.toc {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
}

.toc h2 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
}

.toc ol {
  margin: 0;
  padding-left: 1.25rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--muted);
}

.site-footer a:hover {
  color: var(--text);
}

.disclaimer {
  font-size: 0.8rem;
}

@media (max-width: 40rem) {
  .hero {
    padding: 4rem 0 3.5rem;
  }

  .section {
    padding: 3.5rem 0;
  }
}