:root {
  --paper: #f4f1ea;
  --ink: #121212;
  --muted: #5f5d57;
  --line: rgba(18, 18, 18, 0.18);
  --accent: #d71920;
  --white: #fffdf8;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a { color: inherit; text-underline-offset: 0.2em; }
a:hover { color: var(--accent); }

.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 241, 234, 0.94);
  backdrop-filter: blur(14px);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand { font-weight: 800; letter-spacing: -0.04em; text-decoration: none; }
.brand span { color: var(--accent); }
.nav-links { display: flex; flex-wrap: wrap; gap: 18px; font-size: 0.88rem; }
.nav-links a { text-decoration: none; }

.hero {
  min-height: 72vh;
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 0.75fr);
  gap: 64px;
  align-items: end;
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1, h2, h3 { margin-top: 0; line-height: 1.04; }
h1 { margin-bottom: 30px; font-size: clamp(3.3rem, 8.5vw, 8.5rem); letter-spacing: -0.075em; }
h2 { font-size: clamp(2.2rem, 4.8vw, 5rem); letter-spacing: -0.055em; }
h3 { font-size: 1.3rem; letter-spacing: -0.025em; }

.hero-copy { max-width: 720px; margin: 0; font-size: clamp(1.12rem, 2vw, 1.55rem); }
.hero-note { padding-left: 20px; border-left: 3px solid var(--accent); }
.hero-note p { margin: 0 0 12px; }
.hero-note small { color: var(--muted); }

.section { padding: 88px 0; border-bottom: 1px solid var(--line); }
.section-grid { display: grid; grid-template-columns: minmax(220px, 0.65fr) minmax(0, 1.35fr); gap: 72px; }
.lead { max-width: 790px; font-size: 1.2rem; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 44px; background: var(--line); border: 1px solid var(--line); }
.card { min-height: 250px; padding: 28px; background: var(--white); }
.card-index { color: var(--accent); font-weight: 800; }

.steps { list-style: none; padding: 0; margin: 42px 0 0; counter-reset: steps; }
.steps li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.steps li::before { counter-increment: steps; content: "0" counter(steps); color: var(--accent); font-weight: 800; }
.steps strong { display: block; margin-bottom: 5px; }

.api-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  padding: 28px;
  background: var(--ink);
  color: var(--white);
}
.api-panel p { margin: 0; }
.api-link { color: var(--white); white-space: nowrap; }

.legal-hero { padding: 92px 0 58px; border-bottom: 1px solid var(--line); }
.legal-hero h1 { max-width: 900px; font-size: clamp(3rem, 7vw, 7rem); }
.updated { color: var(--muted); }
.legal-layout { display: grid; grid-template-columns: minmax(180px, 0.5fr) minmax(0, 1.5fr); gap: 72px; padding: 72px 0 110px; }
.toc { position: sticky; top: 104px; align-self: start; }
.toc a { display: block; padding: 7px 0; color: var(--muted); text-decoration: none; }
.legal-copy { max-width: 780px; }
.legal-copy h2 { margin-top: 64px; font-size: 2rem; letter-spacing: -0.035em; }
.legal-copy h2:first-child { margin-top: 0; }
.legal-copy ul { padding-left: 1.2em; }
.callout { margin: 28px 0; padding: 22px; border: 1px solid var(--line); background: var(--white); }

.footer { padding: 42px 0 56px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 32px; }
.footer p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.footer a { display: block; width: fit-content; margin-bottom: 7px; }

@media (max-width: 800px) {
  .nav { align-items: flex-start; padding: 18px 0; }
  .nav-links { justify-content: flex-end; }
  .hero, .section-grid, .legal-layout { grid-template-columns: 1fr; gap: 36px; }
  .hero { min-height: auto; padding-top: 70px; }
  .cards { grid-template-columns: 1fr; }
  .toc { position: static; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .shell { width: min(100% - 24px, 1180px); }
  .nav { display: block; }
  .nav-links { margin-top: 12px; justify-content: flex-start; gap: 12px; }
  h1 { font-size: 3.25rem; }
  .section { padding: 60px 0; }
  .api-panel { grid-template-columns: 1fr; }
}