:root {
  --bg: #f7f3ee;
  --surface: #ffffff;
  --surface-soft: #efeae3;
  --ink: #151517;
  --muted: #5b5b5f;
  --accent: #0f766e;
  --accent-dark: #0a5a54;
  --warning: #9a4f09;
  --line: rgba(21, 21, 23, 0.12);
  --shadow: 0 24px 60px -42px rgba(21, 21, 23, 0.55);
  --sans: "Space Grotesk", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background-color: var(--bg);
  background-image: radial-gradient(rgba(21, 21, 23, 0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  font-family: var(--sans);
  line-height: 1.6;
}
a { color: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .75rem 1rem; background: var(--ink); color: white; border-radius: .6rem; }
.skip-link:focus { top: 1rem; }
.shell { width: min(1080px, calc(100% - 2rem)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 30; background: rgba(247, 243, 238, .92); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .65rem; font-weight: 800; text-decoration: none; letter-spacing: -.03em; }
.brand-mark { display: grid; width: 28px; height: 28px; place-items: center; border-radius: 7px; background: var(--accent); color: white; }
.nav-links { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.nav-links a { padding: .55rem .8rem; border-radius: .7rem; color: #39393d; font-weight: 600; text-decoration: none; }
.nav-links a:hover { background: var(--surface); }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(15, 118, 110, .35); outline-offset: 3px; }
.hero { padding: clamp(4rem, 9vw, 7rem) 0 3rem; }
.eyebrow { display: inline-flex; align-items: center; gap: .5rem; padding: .4rem .75rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); font-family: var(--mono); font-size: .76rem; letter-spacing: .06em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px rgba(15, 118, 110, .12); }
h1, h2, h3 { line-height: 1.1; letter-spacing: -.035em; }
h1 { max-width: 820px; margin: 1.25rem 0 1rem; font-size: clamp(2.7rem, 7vw, 5.2rem); }
h2 { margin: 0 0 .75rem; font-size: clamp(1.8rem, 4vw, 2.7rem); }
h3 { margin: 0 0 .55rem; font-size: 1.2rem; }
.lede { max-width: 720px; margin: 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.25rem); }
.actions { display: flex; gap: .75rem; margin-top: 1.75rem; flex-wrap: wrap; }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: .7rem 1.2rem; border: 2px solid var(--ink); border-radius: 999px; background: transparent; color: var(--ink); font-weight: 700; text-decoration: none; }
.button.primary { border-color: var(--accent); background: var(--accent); color: white; }
.button.primary:hover { background: var(--accent-dark); }
.button[aria-disabled="true"] { border-color: var(--line); background: var(--surface-soft); color: var(--muted); cursor: not-allowed; }
.section { padding: 2.5rem 0 5rem; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.card { padding: clamp(1.25rem, 3vw, 2rem); border: 1px solid var(--line); border-radius: 1.25rem; background: rgba(255, 255, 255, .88); box-shadow: var(--shadow); }
.card p { margin: 0; color: var(--muted); }
.notice { display: grid; grid-template-columns: auto 1fr; gap: .9rem; align-items: start; margin-top: 2rem; padding: 1.2rem; border: 1px solid rgba(154, 79, 9, .28); border-radius: 1rem; background: #fff8ed; }
.notice-icon { display: grid; width: 32px; height: 32px; place-items: center; border-radius: 50%; background: #ffddb7; color: var(--warning); font-weight: 800; }
.notice strong { display: block; margin-bottom: .2rem; }
.notice p { margin: 0; color: #69421f; }
.policy { display: grid; grid-template-columns: minmax(180px, .35fr) minmax(0, 1fr); gap: 2rem; align-items: start; }
.policy-nav { position: sticky; top: 96px; display: grid; gap: .45rem; padding: 1rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--surface); }
.policy-nav a { padding: .55rem .65rem; border-radius: .5rem; text-decoration: none; }
.policy-nav a:hover { background: var(--surface-soft); }
.policy-content { display: grid; gap: 1rem; }
.policy-content section { scroll-margin-top: 96px; }
.meta { font-family: var(--mono); color: var(--muted); font-size: .82rem; }
.site-footer { padding: 2rem 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer-links { display: flex; gap: 1rem; flex-wrap: wrap; }
.platform-card[data-recommended="true"] { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(15, 118, 110, .12), var(--shadow); }
.platform-label { display: inline-flex; margin-bottom: 1rem; padding: .25rem .55rem; border-radius: 999px; background: var(--surface-soft); font-family: var(--mono); font-size: .72rem; }
.download-status { margin-top: .7rem; color: var(--muted); font-size: .9rem; }

@media (max-width: 760px) {
  .nav { align-items: flex-start; padding: .8rem 0; }
  .nav-links { justify-content: flex-end; }
  .grid, .policy { grid-template-columns: 1fr; }
  .policy-nav { position: static; }
}

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