:root {
  --ink: #1f2522;
  --muted: #5c6661;
  --line: #dcd8cf;
  --paper: #f6f4ef;
  --card: #ffffff;
  --accent: #2f4a3f;
  --accent-ink: #ffffff;
  --sand: #e9e3d6;
  --max: 1240px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* header */
.topbar { background: var(--accent); color: var(--accent-ink); font-size: 14px; }
.topbar .wrap { display: flex; flex-wrap: wrap; gap: 6px 22px; padding-top: 7px; padding-bottom: 7px; }
.topbar a { color: var(--accent-ink); text-decoration: none; }
.site-header { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 12px; padding-bottom: 12px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand img { width: 132px; }
.brand span { font-size: 13px; color: var(--muted); border-left: 1px solid var(--line); padding-left: 12px; }
.nav { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: 15px; }
.nav a { color: var(--ink); text-decoration: none; padding: 4px 0; }
.nav a[aria-current="page"], .nav a:hover { color: var(--accent); box-shadow: inset 0 -2px 0 var(--accent); }
.nav .cta { background: var(--accent); color: var(--accent-ink); padding: 6px 14px; border-radius: 4px; box-shadow: none; }

/* hero */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; background: var(--card); border-bottom: 1px solid var(--line); }
.hero-text { padding: 44px 40px 40px max(20px, calc((100vw - var(--max)) / 2 + 20px)); display: flex; flex-direction: column; justify-content: center; }
.hero h1 { font-size: clamp(30px, 3.4vw, 44px); line-height: 1.15; margin: 0 0 14px; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: 13px; color: var(--muted); margin: 0 0 10px; }
.lead { font-size: 18px; color: var(--muted); margin: 0 0 20px; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; min-height: 360px; }
.buttons { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { display: inline-block; padding: 11px 20px; border-radius: 4px; text-decoration: none; font-weight: 600; border: 1px solid var(--accent); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-ghost { color: var(--accent); background: transparent; }
.hero-points { list-style: none; padding: 0; margin: 22px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6px 18px; font-size: 15px; }
.hero-points li::before { content: "✓ "; color: var(--accent); font-weight: 700; }

/* facts */
.facts { background: var(--sand); }
.facts .wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.fact { padding: 18px 16px; border-right: 1px solid var(--line); }
.fact:last-child { border-right: 0; }
.fact strong { display: block; font-size: 26px; line-height: 1.1; }
.fact span { font-size: 14px; color: var(--muted); }

/* sections */
section { padding: 40px 0; }
section + section { border-top: 1px solid var(--line); }
h2 { font-size: clamp(24px, 2.4vw, 32px); line-height: 1.2; margin: 0 0 8px; }
h3 { font-size: 19px; margin: 0 0 6px; }
.section-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 8px 20px; margin-bottom: 18px; }
.section-head p { margin: 0; color: var(--muted); max-width: 720px; }

.grid { display: grid; gap: 14px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: 1fr 1fr; }

.color-card { background: var(--card); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; text-decoration: none; color: var(--ink); display: flex; flex-direction: column; }
.color-card img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.color-card div { padding: 10px 12px 12px; }
.color-card h3 { font-size: 17px; margin: 0; }
.color-card p { margin: 2px 0 0; font-size: 14px; color: var(--muted); }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 18px; }
.panel p { margin: 0; color: var(--muted); }
.num { display: inline-block; font-weight: 700; color: var(--accent); margin-bottom: 4px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: center; }
.split img { border-radius: 6px; border: 1px solid var(--line); }
.checklist { padding-left: 20px; margin: 10px 0 0; }
.checklist li { margin: 4px 0; }

.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 12px 16px; margin-bottom: 8px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 8px 0 2px; color: var(--muted); }

.band { background: var(--accent); color: var(--accent-ink); }
.band .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; padding-top: 28px; padding-bottom: 28px; }
.band h2 { margin: 0; }
.band p { margin: 4px 0 0; opacity: .9; }
.band .btn { background: var(--accent-ink); color: var(--accent); border-color: var(--accent-ink); }

/* colors page */
.color-detail { display: grid; grid-template-columns: 1.2fr 1fr; gap: 22px; background: var(--card); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; margin-bottom: 14px; scroll-margin-top: 90px; }
.color-detail img { width: 100%; height: 100%; object-fit: cover; }
.color-detail .body { padding: 20px 22px 20px 0; }
.spec { width: 100%; border-collapse: collapse; margin: 10px 0 12px; font-size: 15px; }
.spec th, .spec td { text-align: left; padding: 6px 0; border-bottom: 1px solid var(--line); }
.spec th { width: 42%; color: var(--muted); font-weight: 500; }

/* guide */
.prose { max-width: 860px; }
.prose h2 { margin-top: 30px; }
.prose table { width: 100%; border-collapse: collapse; background: var(--card); margin: 12px 0; font-size: 15px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; }
.prose th { background: var(--sand); }
.toc { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 14px 18px; }
.toc ol { margin: 6px 0 0; padding-left: 20px; columns: 2; }
.page-head { background: var(--card); border-bottom: 1px solid var(--line); padding: 26px 0 22px; }
.page-head h1 { margin: 4px 0 6px; font-size: clamp(28px, 3vw, 38px); line-height: 1.2; }
.page-head p { margin: 0; color: var(--muted); max-width: 820px; }
.crumbs { font-size: 14px; color: var(--muted); }
.crumbs a { color: var(--muted); }

/* contact */
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: 9px 0; border-bottom: 1px solid var(--line); }
.contact-list strong { display: inline-block; min-width: 120px; }

/* footer */
.site-footer { background: #1c211f; color: #c9cec9; font-size: 14px; }
.site-footer .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 24px; padding-top: 30px; padding-bottom: 22px; }
.site-footer h2 { font-size: 15px; color: #fff; margin: 0 0 8px; }
.site-footer a { color: #e6e9e6; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 3px 0; }
.copyright { border-top: 1px solid #343b38; text-align: center; padding: 12px 20px; color: #9aa29d; font-size: 13px; }

@media (max-width: 900px) {
  .hero, .split, .color-detail, .site-footer .wrap { grid-template-columns: 1fr; }
  .hero-text { padding: 28px 20px; }
  .hero-media img { min-height: 220px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .facts .wrap { grid-template-columns: 1fr 1fr; }
  .fact:nth-child(2) { border-right: 0; }
  .color-detail .body { padding: 0 18px 18px; }
  .toc ol { columns: 1; }
  .brand span { display: none; }
}
@media (max-width: 560px) {
  .grid-3, .grid-4, .grid-2, .hero-points { grid-template-columns: 1fr; }
  .nav { font-size: 14px; gap: 2px 12px; }
  .topbar span { display: none; }
  .site-header { position: static; }
  .site-header .wrap { flex-direction: column; align-items: flex-start; gap: 8px; }
}