:root {
  --bg: #f7f7f8;
  --surface: #ffffff;
  --border: #e6e7ea;
  --text: #16181d;
  --text-2: #4a515b;
  --text-3: #5f6772;
  --accent: #2f55d4;
  --accent-hover: #2647b9;
  --accent-soft: #edf1fc;
  --on-accent: #ffffff;
  --met: #1d7a46;
  --met-soft: #e8f5ee;
  --unmet: #b42318;
  --unmet-soft: #fdeceb;
  --unknown: #8a5a00;
  --unknown-soft: #fdf4e3;
  --r-md: 8px;
  --r-lg: 12px;
  --shadow: 0 1px 2px rgb(16 24 40 / 6%), 0 12px 32px rgb(16 24 40 / 8%);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181c;
    --surface: #1d2024;
    --border: #2a2d33;
    --text: #eceef1;
    --text-2: #b1b8c1;
    --text-3: #979fa9;
    --accent: #86a2ff;
    --accent-hover: #a2b8ff;
    --accent-soft: #232b45;
    --on-accent: #0e1424;
    --met: #6fd39b;
    --met-soft: #173325;
    --unmet: #ff8f85;
    --unmet-soft: #3a1c1a;
    --unknown: #f2c265;
    --unknown-soft: #3a2e14;
    --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 12px 32px rgb(0 0 0 / 35%);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.wrap { width: min(1080px, 100% - 32px); margin: 0 auto; }

.nav { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; font-size: 18px; letter-spacing: -.01em; text-decoration: none; }
.brand img { width: 32px; height: 32px; }
.brand:hover { color: var(--text); }
.nav-links { display: flex; gap: 20px; font-size: 15px; }
.nav-links a { color: var(--text-2); text-decoration: none; }
.nav-links a:hover { color: var(--text); }

.hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; padding: 56px 0 88px; }
.hero h1 { margin: 0; font-size: clamp(36px, 5vw, 54px); line-height: 1.08; letter-spacing: -.035em; font-weight: 700; text-wrap: balance; }
.lede { margin: 20px 0 32px; max-width: 34ch; color: var(--text-2); font-size: 19px; text-wrap: pretty; }
.cta { display: inline-flex; align-items: center; gap: 10px; height: 48px; padding: 0 22px; color: var(--on-accent); background: var(--accent); border-radius: var(--r-md); font-weight: 600; text-decoration: none; transition: background .15s ease; }
.cta:hover { color: var(--on-accent); background: var(--accent-hover); }
.cta-note { margin: 14px 0 0; color: var(--text-3); font-size: 14px; }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); box-shadow: var(--shadow); overflow: hidden; font-size: 14px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.panel-title { font-weight: 600; }
.panel-sub { color: var(--text-3); font-size: 13px; }
.tag { flex: none; padding: 2px 8px; color: var(--text-3); border: 1px solid var(--border); border-radius: 999px; font-size: 12px; }
.summary { display: flex; align-items: baseline; gap: 10px; padding: 14px 16px 6px; }
.summary strong { font-size: 28px; letter-spacing: -.02em; }
.summary span { color: var(--text-2); }
.group { padding: 8px 16px 12px; }
.group + .group { border-top: 1px solid var(--border); }
.group-label { margin: 6px 0 4px; color: var(--text-3); font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.row { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; padding: 8px 0; }
.row + .row { border-top: 1px dashed var(--border); }
.req { font-weight: 550; }
.evidence { grid-column: 1 / -1; color: var(--text-2); font-size: 13px; }
.status { align-self: start; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.met { color: var(--met); background: var(--met-soft); }
.unmet { color: var(--unmet); background: var(--unmet-soft); }
.unknown { color: var(--unknown); background: var(--unknown-soft); }

.section { padding: 72px 0; border-top: 1px solid var(--border); }
.section h2 { margin: 0 0 12px; font-size: clamp(26px, 3.2vw, 34px); line-height: 1.2; letter-spacing: -.025em; }
.section-lede { margin: 0 0 40px; max-width: 56ch; color: var(--text-2); font-size: 18px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin: 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { counter-increment: step; }
.steps li::before { content: counter(step); display: grid; place-items: center; width: 32px; height: 32px; margin-bottom: 14px; color: var(--accent); background: var(--accent-soft); border-radius: 50%; font-weight: 700; font-size: 15px; }
.steps h3, .principles h3 { margin: 0 0 6px; font-size: 18px; letter-spacing: -.01em; }
.steps p, .principles p { margin: 0; color: var(--text-2); }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }

.closing { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.closing p { margin: 0; max-width: 52ch; color: var(--text-2); }

.footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 32px 0 48px; color: var(--text-3); font-size: 14px; border-top: 1px solid var(--border); }
.footer a { color: var(--text-3); }

.doc { max-width: 720px; padding: 32px 0 72px; }
.doc h1 { margin: 0 0 4px; font-size: clamp(30px, 4vw, 40px); letter-spacing: -.03em; line-height: 1.15; }
.doc .updated { margin: 0 0 32px; color: var(--text-3); }
.doc h2 { margin: 40px 0 10px; font-size: 21px; letter-spacing: -.015em; }
.doc p, .doc li { color: var(--text-2); }
.doc ul { padding-left: 22px; }
.doc li + li { margin-top: 6px; }
.doc strong { color: var(--text); }
.callout { padding: 16px 18px; background: var(--accent-soft); border-radius: var(--r-md); }
.callout p { margin: 0; color: var(--text); }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding: 32px 0 64px; }
  .steps, .principles { grid-template-columns: 1fr; gap: 28px; }
  .section { padding: 56px 0; }
}