:root {
  --ink: #17211d;
  --muted: #5e6863;
  --line: #d9e2dc;
  --paper: #fbfbf7;
  --white: #ffffff;
  --sage: #6f8d79;
  --forest: #21483b;
  --gold: #b68a3a;
  --rose: #b76f62;
  --blue: #4d7282;
  --shadow: 0 18px 50px rgba(23, 33, 29, .12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}
a { color: inherit; text-underline-offset: .2em; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; }
.skip-link { position: absolute; left: -999px; top: 1rem; background: var(--ink); color: var(--white); padding: .75rem 1rem; z-index: 10; }
.skip-link:focus { left: 1rem; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  background: rgba(251, 251, 247, .92);
  border-bottom: 1px solid rgba(217, 226, 220, .85);
  backdrop-filter: blur(14px);
}
.brand { font-weight: 780; text-decoration: none; letter-spacing: 0; }
.brand span { display: block; color: var(--muted); font-size: .78rem; font-weight: 650; }
.main-nav, .site-header nav { display: flex; flex-wrap: wrap; gap: .35rem; align-items: center; justify-content: flex-end; }
.main-nav a, .site-header nav a { text-decoration: none; color: var(--muted); padding: .55rem .72rem; border-radius: 6px; font-size: .9rem; font-weight: 680; }
.main-nav a:hover, .site-header nav a:hover { background: #edf2ee; color: var(--forest); }
.hero {
  min-height: 92vh;
  display: grid;
  align-items: center;
  padding: clamp(3rem, 7vw, 7rem) clamp(1rem, 4vw, 4rem);
  background:
    linear-gradient(135deg, rgba(33,72,59,.08), rgba(182,138,58,.08) 46%, rgba(77,114,130,.10)),
    radial-gradient(circle at 80% 15%, rgba(183,111,98,.16), transparent 28%);
}
.hero-inner { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(290px, .75fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.preview-label { display: inline-flex; max-width: 100%; padding: .45rem .65rem; border: 1px solid rgba(33,72,59,.28); border-radius: 6px; background: rgba(255,255,255,.74); color: var(--forest); font-size: .85rem; font-weight: 760; }
.eyebrow { margin: 0 0 1rem; color: var(--gold); font-weight: 820; text-transform: uppercase; font-size: .82rem; letter-spacing: .08em; }
h1, h2, h3 { line-height: 1.05; letter-spacing: 0; }
h1 { margin: 0; font-size: clamp(3.2rem, 9vw, 7.8rem); max-width: 11ch; }
h2 { margin: 0; font-size: clamp(2rem, 4vw, 4.2rem); }
h3 { margin: 0 0 .7rem; font-size: 1.18rem; }
.lead { font-size: clamp(1.1rem, 2vw, 1.45rem); color: #33413b; max-width: 760px; }
.recommendation { font-size: clamp(1.25rem, 2.5vw, 2rem); line-height: 1.18; font-weight: 760; color: var(--forest); max-width: 880px; }
.hero-actions, .detail-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.button, .button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: .82rem 1rem;
  border-radius: 6px;
  font-weight: 760;
  text-decoration: none;
  border: 1px solid var(--forest);
}
.button { background: var(--forest); color: var(--white); box-shadow: 0 10px 25px rgba(33,72,59,.18); }
.button-secondary { background: rgba(255,255,255,.65); color: var(--forest); }
.hero-panel { display: grid; gap: 1rem; }
.metric, .card, .detail-card, .option-card, .decision-card, .download-card, .task-card, .timeline-card {
  background: rgba(255,255,255,.86);
  border: 1px solid rgba(217,226,220,.95);
  border-radius: 8px;
  box-shadow: var(--shadow);
}
.metric { padding: 1.25rem; }
.metric strong { display: block; color: var(--forest); font-size: clamp(2rem, 5vw, 4rem); line-height: .95; }
.metric span { display: block; color: var(--muted); margin-top: .45rem; }
.section { padding: clamp(3.5rem, 8vw, 7rem) clamp(1rem, 4vw, 4rem); max-width: 1240px; margin: 0 auto; }
.section-head { max-width: 820px; margin-bottom: 2rem; }
.section-head p { color: var(--muted); font-size: 1.08rem; }
.grid { display: grid; gap: 1rem; }
.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card, .detail-card, .option-card, .decision-card, .task-card, .timeline-card { padding: clamp(1rem, 2vw, 1.5rem); }
.tag { display: inline-flex; margin-bottom: .8rem; color: var(--forest); font-size: .78rem; font-weight: 780; text-transform: uppercase; letter-spacing: .08em; }
.pillar-number { font-size: 3rem; line-height: 1; color: var(--gold); font-weight: 840; }
.ladder { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: .8rem; align-items: end; }
.ladder-step { min-height: calc(145px + var(--rise, 0px)); padding: 1rem; border-radius: 8px; background: linear-gradient(180deg, #fff, #eef4ef); border: 1px solid var(--line); display: flex; flex-direction: column; justify-content: flex-end; }
.ladder-step:nth-child(1) { --rise: 100px; }
.ladder-step:nth-child(2) { --rise: 75px; }
.ladder-step:nth-child(3) { --rise: 50px; }
.ladder-step:nth-child(4) { --rise: 25px; }
.ladder-step:nth-child(5) { --rise: 0px; }
.callout { margin-top: 1.2rem; padding: 1rem 1.2rem; border-left: 5px solid var(--gold); background: #fff8e8; border-radius: 6px; }
.mockup { background: #fff; border-radius: 8px; padding: 1.2rem; border: 1px solid var(--line); box-shadow: var(--shadow); transform: rotate(-1deg); }
.mock-line { height: .65rem; background: #dfe8e2; border-radius: 99px; margin: .75rem 0; }
.mock-line.short { width: 58%; }
.option-grid, .download-grid, .task-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1rem; }
.option-card { box-shadow: none; }
.process { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: .6rem; align-items: stretch; }
.process div { padding: 1rem; border-radius: 8px; background: #edf3ef; border: 1px solid var(--line); font-weight: 720; }
.roles { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: .7rem; margin-top: 1rem; }
.roles span { background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: .75rem; }
.timeline { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1rem; position: relative; }
.timeline-card strong { color: var(--gold); display: block; margin-bottom: .5rem; }
.guardrails { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .75rem; padding: 0; list-style: none; }
.guardrails li { padding: 1rem; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.decision-card h3 { font-size: 1.7rem; }
.decision-card.proceed { border-top: 6px solid var(--forest); }
.decision-card.revise { border-top: 6px solid var(--blue); }
.decision-card.pause { border-top: 6px solid var(--rose); }
.download-card { box-shadow: none; min-height: 120px; }
.download-card a { display: block; font-weight: 760; color: var(--forest); }
.download-card span { color: var(--muted); display: block; margin-top: .45rem; }
.detail-main { max-width: 1050px; margin: 0 auto; padding: clamp(2rem, 5vw, 5rem) clamp(1rem, 4vw, 3rem); }
.detail-main h1 { max-width: 12ch; }
.detail-grid { display: grid; gap: 1rem; margin-top: 2rem; }
.footer { padding: 2rem clamp(1rem, 4vw, 4rem); color: var(--muted); border-top: 1px solid var(--line); }
.preview-ribbon { padding: .8rem 1rem; background: #21483b; color: #fff; font-weight: 760; text-align: center; }
.reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(16px); transition: opacity .55s ease, transform .55s ease; }
  .reveal.is-visible { opacity: 1; transform: none; }
  .button:hover, .button-secondary:hover { transform: translateY(-1px); transition: transform .18s ease; }
}
@media (max-width: 900px) {
  .hero-inner, .three, .two, .option-grid, .download-grid, .task-grid, .timeline, .roles, .guardrails { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  h1 { font-size: clamp(3rem, 16vw, 5rem); }
  .ladder { grid-template-columns: 1fr; }
  .ladder-step { min-height: auto; }
  .process { grid-template-columns: 1fr; }
  .site-header { position: static; align-items: flex-start; flex-direction: column; }
  .main-nav { justify-content: flex-start; }
}
@media print {
  .site-header, .hero-actions, .button, .button-secondary, .skip-link, script { display: none !important; }
  body { background: white; color: black; }
  .hero { min-height: 0; padding: 1rem 0; background: white; }
  .section { padding: 1rem 0; break-inside: avoid; }
  .card, .metric, .detail-card, .option-card, .decision-card, .download-card { box-shadow: none; border-color: #999; }
  a::after { content: " (" attr(href) ")"; font-size: .85em; }
}