:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2.125rem, 1.2rem + 3vw, 3.75rem);

  --space-1: .25rem; --space-2: .5rem; --space-3: .75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;

  --radius-sm: .375rem; --radius-md: .5rem; --radius-lg: .875rem;
  --wrap: 1180px;

  --navy: #142b4d;
  --navy-deep: #0d1d36;
  --gold: #c9a24a;
  --gold-hover: #d8b465;
}

:root, [data-theme='light'] {
  --bg: #ffffff;
  --surface: #f5f6f8;
  --surface-2: #eceff3;
  --border: #dbe0e7;
  --text: #121b2b;
  --text-muted: #556175;
  --primary: #142b4d;
  --primary-hover: #0d1d36;
  --on-primary: #ffffff;
  --accent-text: #8a6a22;
  --shadow: 0 1px 2px rgba(18,27,43,.05), 0 14px 34px -20px rgba(18,27,43,.28);
}

[data-theme='dark'] {
  --bg: #0b1322;
  --surface: #111c2e;
  --surface-2: #162338;
  --border: #243249;
  --text: #edf1f7;
  --text-muted: #9ba8bd;
  --primary: #c9a24a;
  --primary-hover: #d8b465;
  --on-primary: #0d1d36;
  --accent-text: #d8b465;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 18px 40px -22px rgba(0,0,0,.75);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--font-body); font-size: var(--text-base); line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { margin: 0; }
h1, h2 { font-family: var(--font-display); font-weight: 400; line-height: 1.1; letter-spacing: -.01em; text-wrap: balance; }
h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-xl); }
h3 { font-size: var(--text-lg); font-weight: 600; line-height: 1.3; }
p { margin: 0; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--space-6); }
.skip { position: absolute; left: -9999px; top: var(--space-2); background: var(--navy); color: #fff; padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); z-index: 60; }
.skip:focus { left: var(--space-4); }

/* Top bar */
.topbar { background: var(--navy-deep); color: rgba(255,255,255,.78); font-size: var(--text-xs); }
.topbar-inner { display: flex; justify-content: space-between; gap: var(--space-4); padding-block: var(--space-2); }
.topbar a { color: #fff; text-decoration: none; }
.topbar a:hover { color: var(--gold-hover); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: var(--space-6); min-height: 72px; }
.brand { display: inline-flex; align-items: center; gap: var(--space-3); text-decoration: none; }
.seal { width: 40px; height: 40px; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: var(--font-display); font-size: var(--text-lg); }
.brand-sub { font-size: var(--text-xs); letter-spacing: .12em; text-transform: uppercase; color: var(--text-muted); }
.nav { margin-left: auto; display: flex; align-items: center; gap: var(--space-6); font-size: var(--text-sm); }
.nav a { text-decoration: none; color: var(--text-muted); }
.nav a:hover { color: var(--text); }
.nav a.btn { color: var(--on-primary); }
.theme-toggle { flex: none; display: grid; place-items: center; width: 38px; height: 38px; border-radius: var(--radius-md); border: 1px solid var(--border); background: var(--surface); color: var(--text-muted); cursor: pointer; }
.theme-toggle:hover { color: var(--text); }
.theme-toggle svg { width: 18px; height: 18px; }
[data-theme='light'] .icon-moon, [data-theme='dark'] .icon-sun { display: none; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-md);
  background: var(--primary); color: var(--on-primary);
  font-size: var(--text-sm); font-weight: 600; text-decoration: none;
  border: 1px solid transparent;
  transition: background .18s ease, color .18s ease, transform .18s ease;
}
.btn:hover { background: var(--primary-hover); transform: translateY(-1px); }
.btn-sm { padding: var(--space-2) var(--space-4); }
.btn-gold { background: var(--gold); color: var(--navy-deep); }
.btn-gold:hover { background: var(--gold-hover); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); }
.btn-outline-light:hover { background: rgba(255,255,255,.1); }
.btn-block { width: 100%; }

.eyebrow { font-size: var(--text-xs); font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--accent-text); margin-bottom: var(--space-4); }
.eyebrow-gold { color: var(--gold-hover); }

/* Hero */
.hero { position: relative; isolation: isolate; overflow: hidden; color: #fff; background: var(--navy-deep); }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.hero-shade { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(13,29,54,.96) 0%, rgba(13,29,54,.86) 42%, rgba(13,29,54,.35) 100%); }
.hero-inner { padding-block: clamp(var(--space-16), 10vw, 9rem); }
.hero h1 { max-width: 17ch; }
.lede { max-width: 56ch; margin-top: var(--space-6); color: rgba(255,255,255,.82); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-8); }

/* Pillars */
.pillars { background: var(--navy); color: #fff; border-top: 1px solid rgba(201,162,74,.35); }
.pillars-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.pillar { display: flex; flex-direction: column; gap: var(--space-1); padding: var(--space-6) var(--space-5); border-left: 1px solid rgba(255,255,255,.12); }
.pillar:first-child { border-left: 0; padding-left: 0; }
.pillar-k { font-size: var(--text-xs); letter-spacing: .12em; text-transform: uppercase; color: var(--gold-hover); font-weight: 600; }
.pillar-v { font-size: var(--text-sm); color: rgba(255,255,255,.9); line-height: 1.45; }

/* Sections */
.section { padding-block: clamp(var(--space-12), 7vw, var(--space-24)); }
.section-alt { background: var(--surface); border-block: 1px solid var(--border); }
.section-head { max-width: 46rem; }
.body-muted { color: var(--text-muted); margin-top: var(--space-5); max-width: 52ch; }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); margin-top: var(--space-10); }
.card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); transition: transform .2s ease, box-shadow .2s ease; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card-icon { width: 30px; height: 30px; color: var(--accent-text); margin-bottom: var(--space-2); }
.card p { color: var(--text-muted); font-size: var(--text-sm); }

.steps { list-style: none; margin: var(--space-10) 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
.steps li { position: relative; padding-top: var(--space-6); border-top: 2px solid var(--primary); display: flex; flex-direction: column; gap: var(--space-2); }
.step-n { font-family: var(--font-display); font-size: var(--text-xl); color: var(--accent-text); line-height: 1; margin-bottom: var(--space-2); }
.steps p { color: var(--text-muted); font-size: var(--text-sm); }

.standards-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(var(--space-8), 6vw, var(--space-20)); align-items: start; }
.docs { margin-top: var(--space-8); padding: var(--space-6); border: 1px solid var(--border); border-left: 3px solid var(--gold); border-radius: var(--radius-md); background: var(--surface); }
.docs-title { font-size: var(--text-xs); letter-spacing: .12em; text-transform: uppercase; font-weight: 600; color: var(--text-muted); margin-bottom: var(--space-3); }
.docs ul { margin: 0; padding-left: var(--space-5); font-size: var(--text-sm); display: grid; gap: var(--space-1); }
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-4); }
.checks li { position: relative; padding: var(--space-5) var(--space-5) var(--space-5) var(--space-12); border: 1px solid var(--border); border-radius: var(--radius-md); font-size: var(--text-sm); color: var(--text-muted); }
.checks li strong { display: block; color: var(--text); font-size: var(--text-base); margin-bottom: var(--space-1); }
.checks li::before {
  content: ""; position: absolute; left: var(--space-5); top: var(--space-6);
  width: 14px; height: 8px; border-left: 2px solid var(--accent-text); border-bottom: 2px solid var(--accent-text);
  transform: rotate(-45deg);
}

.faq-wrap { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(var(--space-8), 6vw, var(--space-20)); align-items: start; }
.faq { display: grid; gap: var(--space-3); }
.faq details { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-4) var(--space-5); }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: var(--space-4); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent-text); font-weight: 400; font-size: var(--text-lg); line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--text-muted); font-size: var(--text-sm); margin-top: var(--space-3); }

/* Partner CTA */
.partner { background: var(--navy); color: #fff; }
[data-theme='dark'] .partner { background: #10213c; }
.partner-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(var(--space-8), 6vw, var(--space-20)); align-items: center; }
.partner-lede { color: rgba(255,255,255,.8); margin-top: var(--space-5); max-width: 52ch; }
.partner-card { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.18); border-radius: var(--radius-lg); padding: var(--space-8); display: flex; flex-direction: column; gap: var(--space-4); }
.partner-k { font-size: var(--text-xs); letter-spacing: .12em; text-transform: uppercase; color: var(--gold-hover); font-weight: 600; }
.partner-email { font-size: var(--text-lg); font-weight: 600; text-decoration: none; word-break: break-all; }
.partner-email:hover { color: var(--gold-hover); }
.partner-facts { margin: var(--space-2) 0 0; padding-top: var(--space-4); border-top: 1px solid rgba(255,255,255,.16); display: grid; gap: var(--space-2); font-size: var(--text-sm); }
.partner-facts div { display: flex; justify-content: space-between; gap: var(--space-4); }
.partner-facts dt { color: rgba(255,255,255,.65); }
.partner-facts dd { margin: 0; font-weight: 600; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding-block: var(--space-8); font-size: var(--text-xs); color: var(--text-muted); }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3); }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: var(--radius-sm); }

@media (max-width: 1024px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); row-gap: var(--space-8); }
  .nav a:not(.btn) { display: none; }
}
@media (max-width: 820px) {
  .standards-grid, .faq-wrap, .partner-inner { grid-template-columns: 1fr; }
  .pillars-grid { grid-template-columns: repeat(2, 1fr); }
  .pillar:nth-child(3) { border-left: 0; padding-left: 0; }
  .pillar { border-top: 1px solid rgba(255,255,255,.12); }
  .pillar:nth-child(-n+2) { border-top: 0; }
  .topbar-right { display: none; }
  .hero-shade { background: linear-gradient(180deg, rgba(13,29,54,.88), rgba(13,29,54,.94)); }
}
@media (max-width: 560px) {
  .cards, .steps { grid-template-columns: 1fr; }
  .brand-sub { display: none; }
  .nav .btn { display: none; }
  .header-inner { justify-content: space-between; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}