:root {
  --ink: #101722;
  --ink-2: #192433;
  --steel: #9aa6b5;
  --silver: #d7dce2;
  --paper: #f5f6f7;
  --white: #ffffff;
  --accent: #c4a86a;
  --line: rgba(215, 220, 226, .22);
  --shadow: 0 25px 80px rgba(5, 10, 18, .22);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--silver);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}
body.menu-open { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -.025em;
}
h1 { color: var(--white); font-size: clamp(2.85rem, 6.4vw, 6.3rem); max-width: 920px; margin-bottom: 1.5rem; }
h2 { font-size: clamp(2.25rem, 4.3vw, 4.5rem); margin-bottom: 1.2rem; }
h3 { font-size: 1.65rem; }
.page-width { width: min(calc(100% - 2.5rem), var(--max)); margin-inline: auto; }
.section-pad { padding: clamp(5rem, 10vw, 9rem) 0; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 1000; background: white; color: black; padding: .75rem 1rem; }
.skip-link:focus { top: 1rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.eyebrow { color: var(--accent); font-size: .77rem; font-weight: 750; letter-spacing: .18em; text-transform: uppercase; margin-bottom: 1.3rem; }
.eyebrow.dark { color: #6e5a2e; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; border-bottom: 1px solid transparent; transition: background .25s, border-color .25s; }
.site-header.scrolled { background: rgba(16,23,34,.94); backdrop-filter: blur(14px); border-color: var(--line); }
.nav-shell { width: min(calc(100% - 2.5rem), 1320px); min-height: 94px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { width: 165px; padding: .45rem; background: rgba(255,255,255,.04); }
.brand img { width: 100%; }
.site-nav { display: flex; align-items: center; gap: 1.8rem; }
.site-nav a { color: #dbe0e6; text-decoration: none; font-size: .86rem; font-weight: 650; }
.site-nav a:hover, .site-nav a:focus-visible { color: white; }
.nav-cta { border: 1px solid rgba(255,255,255,.45); padding: .72rem 1rem; }
.menu-button { display: none; width: 46px; height: 42px; border: 1px solid var(--line); background: transparent; padding: 10px; }
.menu-button span:not(.sr-only) { display: block; width: 100%; height: 1px; background: white; margin: 5px 0; }

.hero { min-height: 96vh; display: grid; align-items: center; position: relative; overflow: hidden; padding-top: 9rem; background: radial-gradient(circle at 85% 28%, #334257 0, #1c2735 26%, #101722 58%); }
.hero::before { content: ""; position: absolute; width: 620px; height: 620px; right: -260px; top: 12%; border: 1px solid rgba(255,255,255,.11); border-radius: 50%; box-shadow: 0 0 0 90px rgba(255,255,255,.025), 0 0 0 180px rgba(255,255,255,.018); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(300px, .65fr); gap: clamp(3rem, 7vw, 7rem); align-items: end; position: relative; z-index: 1; }
.hero-lead { max-width: 720px; color: #bdc6d0; font-size: clamp(1.08rem, 1.7vw, 1.3rem); }
.button-row { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 2.2rem; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; padding: .78rem 1.25rem; border: 1px solid transparent; text-decoration: none; text-transform: uppercase; letter-spacing: .1em; font-size: .76rem; font-weight: 800; cursor: pointer; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--accent); color: var(--ink); }
.button-ghost { border-color: rgba(255,255,255,.4); color: white; }
.hero-card { background: rgba(16,23,34,.7); border: 1px solid rgba(255,255,255,.16); padding: 2rem; box-shadow: var(--shadow); backdrop-filter: blur(8px); }
.monogram { font-family: Georgia, serif; font-size: 4rem; color: var(--white); letter-spacing: -.09em; border-bottom: 1px solid var(--line); padding-bottom: 1rem; margin-bottom: 1.4rem; }
.card-kicker { font-size: .8rem; color: var(--accent); text-transform: uppercase; letter-spacing: .12em; }
.stat-row { display: grid; grid-template-columns: 42px 1fr; gap: 1rem; padding: 1.1rem 0; border-top: 1px solid var(--line); }
.stat-row span { color: var(--accent); font-size: .75rem; font-weight: 750; }
.stat-row p { margin: 0; color: #bdc6d0; font-size: .92rem; }
.stat-row strong { color: white; }
.hero-rule { position: absolute; left: 3%; right: 3%; bottom: 1.7rem; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent); }

.light-section { background: var(--paper); color: var(--ink); }
.split-heading { display: grid; grid-template-columns: 1.4fr .6fr; gap: 7vw; align-items: end; }
.split-heading > p { color: #556171; font-size: 1.08rem; }
.model-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 4rem; border-top: 1px solid #cbd0d6; border-left: 1px solid #cbd0d6; }
.model-card { padding: 2rem; border-right: 1px solid #cbd0d6; border-bottom: 1px solid #cbd0d6; min-height: 290px; }
.model-card .number { display: block; color: #8b7440; font-weight: 750; font-size: .75rem; margin-bottom: 3.8rem; }
.model-card p { color: #5a6572; }

.dark-section { background: #0c121b; }
.platform-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 9vw; }
.section-intro { position: sticky; top: 140px; align-self: start; }
.section-intro p:last-child { color: #aeb8c4; font-size: 1.08rem; }
.platform-list { border-top: 1px solid var(--line); }
.platform-item { display: grid; grid-template-columns: .75fr 1.25fr; gap: 2rem; padding: 2rem 0; border-bottom: 1px solid var(--line); }
.platform-item h3 { color: white; margin: 0; }
.platform-item p { color: #aeb8c4; margin: 0; }

.criteria-section { background: #e5e8ec; color: var(--ink); }
.criteria-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 8vw; }
.criteria-panel p:last-child { color: #596472; font-size: 1.08rem; }
.criteria-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid #adb5bf; }
.criteria-list li { display: grid; grid-template-columns: 60px 1fr; gap: 1rem; padding: 1.35rem .25rem; border-bottom: 1px solid #adb5bf; font-family: Georgia, serif; font-size: clamp(1.15rem, 2vw, 1.55rem); }
.criteria-list span { color: #816c3e; font: 750 .74rem Inter, sans-serif; padding-top: .45rem; }

.story-section { background: linear-gradient(120deg, #111a27, #223044); }
.story-grid { display: grid; grid-template-columns: .65fr 1.35fr; gap: 8vw; align-items: center; }
.story-mark { aspect-ratio: 1; display: grid; place-items: center; border: 1px solid var(--line); font: 500 clamp(7rem, 16vw, 14rem)/1 Georgia, serif; letter-spacing: -.22em; color: white; padding-right: .2em; box-shadow: inset 0 0 80px rgba(255,255,255,.035); }
.story-mark span { color: var(--accent); }
.story-copy p:not(.eyebrow) { color: #b9c3ce; font-size: 1.07rem; }
blockquote { margin: 2.5rem 0 0; padding: 2rem 0 0 2rem; border-top: 1px solid var(--line); border-left: 3px solid var(--accent); color: white; font: 500 clamp(1.25rem, 2.2vw, 1.8rem)/1.45 Georgia, serif; }

.contact-section { background: #080d14; }
.contact-box { display: grid; grid-template-columns: .85fr 1.15fr; gap: 7vw; padding: clamp(2rem, 5vw, 4.5rem); border: 1px solid var(--line); background: #111a26; box-shadow: var(--shadow); }
.contact-box > div > p:last-child { color: #aeb8c4; }
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.contact-form label { display: grid; gap: .4rem; font-size: .78rem; font-weight: 750; text-transform: uppercase; letter-spacing: .08em; color: #c7cfd8; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; border: 1px solid #3b4655; border-radius: 0; background: #0d141e; color: white; padding: .85rem; outline: none; text-transform: none; letter-spacing: normal; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(196,168,106,.15); }
.full-width { grid-column: 1 / -1; }
.form-note { color: #8f9aa8; font-size: .76rem; text-transform: none; letter-spacing: 0; margin: 0; }
.form-note code { color: #d8c18c; }

.site-footer { background: #060a10; padding: 3.5rem 0 1.5rem; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 180px 1fr auto; gap: 3rem; align-items: start; }
.footer-grid img { padding: .5rem; background: rgba(255,255,255,.03); }
.footer-grid p { margin-bottom: .6rem; }
.footer-grid .legal { color: #7f8996; font-size: .78rem; max-width: 700px; }
.footer-grid a { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; }
.footer-bottom { color: #66717f; font-size: .78rem; padding-top: 2rem; margin-top: 2rem; border-top: 1px solid var(--line); }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal { opacity: 1; transform: none; transition: none; } }

@media (max-width: 900px) {
  .menu-button { display: block; }
  .site-nav { display: none; position: fixed; inset: 94px 0 0; background: #0c121b; padding: 2rem 1.25rem; flex-direction: column; align-items: stretch; }
  .site-nav.open { display: flex; }
  .site-nav a { font: 500 1.65rem Georgia, serif; border-bottom: 1px solid var(--line); padding: .85rem 0; }
  .nav-cta { border: 0; }
  .hero-grid, .split-heading, .platform-grid, .criteria-layout, .story-grid, .contact-box { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .hero-card { max-width: 560px; }
  .model-grid { grid-template-columns: 1fr 1fr; }
  .section-intro { position: static; }
  .story-mark { max-width: 420px; }
  .footer-grid { grid-template-columns: 150px 1fr; }
  .footer-grid > a { grid-column: 2; }
}

@media (max-width: 600px) {
  .page-width, .nav-shell { width: min(calc(100% - 1.5rem), var(--max)); }
  .nav-shell { min-height: 78px; }
  .brand { width: 135px; }
  .site-nav { inset-block-start: 78px; }
  .hero { padding-top: 7.5rem; }
  .model-grid { grid-template-columns: 1fr; }
  .model-card { min-height: auto; }
  .model-card .number { margin-bottom: 2rem; }
  .platform-item { grid-template-columns: 1fr; gap: .4rem; }
  .contact-form { grid-template-columns: 1fr; }
  .contact-form > * { grid-column: 1; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > a { grid-column: 1; }
}