/* Nation.LTD — Nation.AI for business (corporate, charcoal & gold) */
:root {
  --ink: #1e2329;
  --ink-soft: #59616b;
  --paper: #f7f6f2;
  --white: #ffffff;
  --line: #e2dfd6;
  --charcoal: #1e2329;
  --charcoal-2: #2c333b;
  --gold: #c8902e;
  --gold-dark: #a87420;
  --teal: #2f7f7a;
  --radius: 4px;
  --max: 1160px;
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; font-size: 17px; line-height: 1.65; color: var(--ink); background: var(--paper); -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--gold-dark); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .55em; letter-spacing: -.02em; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.12rem; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 22px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: #fff; padding: 8px 12px; z-index: 10; }

.topbar { background: var(--charcoal); color: #c9ced4; font-size: .82rem; letter-spacing: .04em; }
.topbar .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 7px; padding-bottom: 7px; }
.topbar a { color: #fff; }
.site-header { position: sticky; top: 0; z-index: 5; background: rgba(247, 246, 242, .95); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 70px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 1.15rem; color: var(--ink); text-decoration: none; letter-spacing: .01em; }
.logo small { display: block; font-size: .66rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); }
.logo .tld { color: var(--gold); }
.nav { display: flex; gap: 6px 26px; flex-wrap: wrap; align-items: center; }
.nav a { color: var(--ink-soft); text-decoration: none; font-weight: 600; font-size: .93rem; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--gold); }

.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 26px; border-radius: var(--radius); font-weight: 700; text-decoration: none; letter-spacing: .01em; transition: background .15s, color .15s; }
.btn-primary { background: var(--charcoal); color: #fff; }
.btn-primary:hover { background: var(--gold); color: #fff; }
.btn-ghost { border: 1px solid var(--ink); color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: #fff; }
.nav .btn { padding: 9px 18px; color: #fff; }
.nav .btn:hover { color: #fff; }

.hero { padding: 80px 0 70px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.eyebrow { display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--gold-dark); margin-bottom: 18px; padding-bottom: 8px; border-bottom: 2px solid var(--gold); }
.lead { font-size: 1.2rem; color: var(--ink-soft); max-width: 36em; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-note { margin-top: 18px; font-size: .88rem; color: var(--ink-soft); }

/* KPI band */
.kpis { background: var(--charcoal); color: #fff; }
.kpis .wrap { display: grid; grid-template-columns: repeat(4, 1fr); }
.kpi { padding: 30px 20px; border-left: 1px solid rgba(255, 255, 255, .12); }
.kpi:first-child { border-left: 0; }
.kpi strong { display: block; font-size: 1.9rem; color: var(--gold); line-height: 1.1; }
.kpi span { color: #c9ced4; font-size: .9rem; }

section { padding: 84px 0; }
.white { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 760px; margin: 0 0 44px; }
.section-head p { color: var(--ink-soft); font-size: 1.07rem; }
.num { font-size: .8rem; font-weight: 700; letter-spacing: .14em; color: var(--gold-dark); display: block; margin-bottom: 10px; }

.grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.cell { background: var(--white); padding: 30px 28px; }
.paper .cell, section:not(.white) .cell { background: var(--white); }
.cell p { color: var(--ink-soft); margin: 0; }
.cell .icon { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--gold); color: var(--gold); margin-bottom: 18px; border-radius: 2px; }
.cell .icon svg { width: 22px; height: 22px; }
.cell ul { margin: 12px 0 0; padding-left: 1.1em; color: var(--ink-soft); font-size: .95rem; }
.cell li { margin-bottom: 4px; }
.cell .ex { margin-top: 14px; font-size: .92rem; font-style: italic; color: var(--ink); border-left: 2px solid var(--gold); padding-left: 12px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

/* Steps / playbook */
.playbook { list-style: none; margin: 0; padding: 0; counter-reset: p; }
.playbook li { display: grid; grid-template-columns: 64px 1fr; gap: 18px; padding: 22px 0; border-top: 1px solid var(--line); }
.playbook li:last-child { border-bottom: 1px solid var(--line); }
.playbook li::before { counter-increment: p; content: counter(p, decimal-leading-zero); font-size: 1.8rem; font-weight: 300; color: var(--gold); line-height: 1; }
.playbook h3 { margin: 0 0 4px; }
.playbook p { margin: 0; color: var(--ink-soft); }

/* Quote / reviews */
.review { margin: 0; display: flex; flex-direction: column; gap: 16px; }
.review blockquote { margin: 0; font-size: 1.05rem; }
.review blockquote::before { content: "“"; display: block; font-size: 3rem; line-height: .6; color: var(--gold); margin-bottom: 8px; font-family: Georgia, serif; }
.review footer { margin-top: auto; font-size: .9rem; color: var(--ink-soft); border-top: 1px solid var(--line); padding-top: 12px; }
.review footer b { color: var(--ink); display: block; }
.disclaimer { color: var(--ink-soft); font-size: .85rem; margin-top: 16px; }

/* Policy document */
.doc { background: var(--white); border: 1px solid var(--line); box-shadow: 0 30px 60px -40px rgba(30, 35, 41, .5); padding: 48px 52px; max-width: 840px; }
.doc h2 { font-size: 1.35rem; margin-top: 1.6em; padding-top: 1em; border-top: 1px solid var(--line); }
.doc h2:first-of-type { border-top: 0; padding-top: 0; margin-top: .6em; }
.doc ol, .doc ul { padding-left: 1.2em; color: var(--ink-soft); }
.doc li { margin-bottom: 8px; }
.doc .fill { background: #fbf3e2; padding: 0 4px; color: var(--gold-dark); font-weight: 600; }
.doc-head { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-soft); border-bottom: 2px solid var(--ink); padding-bottom: 12px; margin-bottom: 24px; }

.note { border-left: 3px solid var(--gold); background: var(--white); padding: 18px 20px; color: var(--ink-soft); }
.note strong { color: var(--ink); }

.faq details { border-top: 1px solid var(--line); padding: 20px 0; }
.faq details:last-of-type { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 700; font-size: 1.08rem; list-style: none; position: relative; padding-right: 34px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: -4px; font-size: 1.6rem; font-weight: 300; color: var(--gold); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 12px 0 0; color: var(--ink-soft); max-width: 46em; }

.cta { background: var(--charcoal); color: #fff; padding: 60px 56px; display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; position: relative; overflow: hidden; }
.cta::after { content: ""; position: absolute; right: -60px; top: -60px; width: 220px; height: 220px; border: 1px solid rgba(200, 144, 46, .45); transform: rotate(45deg); }
.cta h2 { color: #fff; margin-bottom: .3em; }
.cta p { color: #c9ced4; margin: 0; max-width: 40em; }
.cta .btn-primary { background: var(--gold); position: relative; z-index: 1; }
.cta .btn-primary:hover { background: #fff; color: var(--ink); }

.page-hero { padding: 64px 0 34px; border-bottom: 1px solid var(--line); }
.breadcrumb { font-size: .85rem; color: var(--ink-soft); margin-bottom: 14px; letter-spacing: .02em; }
.breadcrumb a { color: var(--ink-soft); }
.prose { max-width: 760px; }
.prose h2 { font-size: 1.5rem; margin-top: 1.5em; }
.prose p, .prose li { color: var(--ink-soft); }

.site-footer { background: var(--charcoal); color: #aab1b9; padding: 56px 0 30px; font-size: .94rem; }
.site-footer a { color: #fff; text-decoration: none; }
.site-footer a:hover { color: var(--gold); }
.site-footer .logo { color: #fff; }
.site-footer .logo small { color: #aab1b9; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 32px; margin-bottom: 30px; }
.footer-grid h4 { color: #fff; margin: 0 0 12px; font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .12); padding-top: 20px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .84rem; }

@media (max-width: 960px) {
  .hero .wrap, .split { grid-template-columns: 1fr; gap: 40px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .kpis .wrap { grid-template-columns: repeat(2, 1fr); }
  .kpi:nth-child(3) { border-left: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  section { padding: 58px 0; }
  .hero { padding: 54px 0; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .doc { padding: 28px 22px; }
  .cta { padding: 40px 24px; }
  .nav .btn { display: none; }
  .topbar .wrap span:last-child { display: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }