styles.css

:root {
  --navy: #082642;
  --navy-soft: #153b59;
  --teal: #0c8b88;
  --teal-dark: #08726f;
  --teal-pale: #e4f1ee;
  --gold: #d6a32a;
  --gold-pale: #fbf3dc;
  --canvas: #f7f4ec;
  --canvas-deep: #f0ece1;
  --white: #fffefa;
  --ink: #102d45;
  --muted: #5d6f7c;
  --line: rgba(8, 38, 66, .15);
  --max: 1320px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--canvas); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.site-header { width: min(calc(100% - 64px), var(--max)); height: 104px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand img { display: block; width: 220px; height: auto; }
nav { display: flex; gap: 34px; }
nav a { position: relative; color: var(--navy-soft); font-size: 14px; font-weight: 650; text-decoration: none; }
nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 2px; background: var(--gold); transition: right .2s ease; }
nav a:hover::after { right: 0; }

.hero { width: min(calc(100% - 64px), var(--max)); min-height: 720px; margin: 0 auto; padding: 86px 0 110px; display: grid; grid-template-columns: .92fr 1.08fr; align-items: center; gap: 86px; }
.eyebrow, .kicker { margin: 0; color: var(--teal-dark); font-size: 12px; font-weight: 780; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1 { margin: 25px 0 0; color: var(--navy); font-family: Georgia, "Times New Roman", serif; font-size: clamp(62px, 6.1vw, 92px); font-weight: 500; line-height: .94; letter-spacing: -.055em; }
h1 em { color: var(--teal); font-style: normal; }
.hero-intro { max-width: 650px; margin: 34px 0 0; color: var(--muted); font-size: 20px; line-height: 1.7; }
.hero-actions { margin-top: 38px; display: flex; flex-wrap: wrap; gap: 14px; }
.button { min-height: 52px; padding: 0 25px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--navy); font-size: 14px; font-weight: 740; text-decoration: none; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: var(--navy); }
.button-primary:hover { background: var(--teal-dark); }
.button-secondary { color: var(--navy); background: transparent; }
.button-secondary:hover { background: var(--white); }
.trust-row { margin: 38px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 13px 25px; list-style: none; color: var(--navy-soft); font-size: 14px; font-weight: 680; }
.trust-row li { position: relative; }
.trust-row li:not(:last-child)::after { content: ""; position: absolute; right: -15px; top: .55em; width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }

.market-console { padding: 23px; background: var(--navy); box-shadow: 0 30px 70px rgba(8,38,66,.18); color: white; }
.console-top { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.15); color: #a8bdcc; font: 650 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; }
.console-top strong { color: white; font-size: 12px; }
.console-top i { justify-self: end; padding: 6px 9px; color: #f7d778; border: 1px solid rgba(214,163,42,.55); font-style: normal; }
.console-chart { padding: 28px 0 4px; }
.console-chart svg { width: 100%; height: auto; overflow: visible; }
.chart-grid { fill: none; stroke: rgba(255,255,255,.08); stroke-width: 1; }
.area { fill: url(#area); }
.signal { fill: none; stroke: #57c5bf; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.console-chart circle { fill: var(--gold); stroke: var(--navy); stroke-width: 4; }
.console-flow { display: grid; grid-template-columns: 1fr 30px 1fr 30px 1fr; align-items: center; gap: 9px; padding: 18px 0; border-top: 1px solid rgba(255,255,255,.15); border-bottom: 1px solid rgba(255,255,255,.15); }
.console-flow div { display: grid; gap: 5px; }
.console-flow span { color: var(--gold); font: 700 10px/1 ui-monospace, monospace; }
.console-flow strong { font-size: 15px; }
.console-flow small { color: #9fb3c2; font-size: 11px; }
.console-flow b { height: 1px; background: linear-gradient(90deg, #58c5bf, var(--gold)); }
.console-result { padding-top: 20px; display: grid; grid-template-columns: 94px 1fr; gap: 20px; color: #dce7ed; font-size: 13px; line-height: 1.5; }
.console-result span { color: var(--gold); font: 700 10px/1.5 ui-monospace, monospace; }

.section { padding: 120px max(32px, calc((100vw - var(--max)) / 2)); }
h2 { margin: 0; color: var(--navy); font-family: Georgia, "Times New Roman", serif; font-size: clamp(42px, 4.2vw, 64px); font-weight: 500; line-height: 1.04; letter-spacing: -.045em; }
h3 { margin: 0; color: var(--navy); font-size: 23px; line-height: 1.15; letter-spacing: -.025em; }
.statement { display: grid; grid-template-columns: .5fr 1.5fr; gap: 72px; background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.statement h2 { max-width: 850px; }
.statement div > p { max-width: 950px; margin: 30px 0 0; color: var(--muted); font-size: 20px; line-height: 1.7; }
.section-heading { display: grid; grid-template-columns: .55fr 1.45fr; gap: 70px; align-items: start; margin-bottom: 68px; }
.section-heading.split { grid-template-columns: .55fr 1fr .8fr; align-items: end; }
.section-heading.split > p:last-child { margin: 0; color: var(--muted); font-size: 18px; line-height: 1.65; }
.model-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.model-grid article { min-height: 360px; padding: 38px 32px; border-right: 1px solid var(--line); }
.model-grid article:last-child { border-right: 0; }
.model-grid span { color: var(--teal-dark); font-size: 11px; font-weight: 780; letter-spacing: .1em; }
.model-grid h3 { margin-top: 76px; }
.model-grid p, .safeguard-grid p { margin: 16px 0 0; color: var(--muted); font-size: 16px; line-height: 1.67; }
.model-grid .accent-card { background: var(--navy); }
.model-grid .accent-card span { color: #f1c95c; }
.model-grid .accent-card h3 { color: white; }
.model-grid .accent-card p { color: #c7d5de; }

.loop-section { display: grid; grid-template-columns: .82fr 1.18fr; gap: 100px; color: white; background: var(--navy); }
.loop-copy { position: sticky; top: 60px; align-self: start; }
.loop-copy .kicker { color: #f1c95c; }
.loop-copy h2 { margin-top: 24px; color: white; }
.loop-copy > p:last-child { max-width: 570px; margin: 30px 0 0; color: #bfd0db; font-size: 18px; line-height: 1.7; }
.loop-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.17); }
.loop-list li { padding: 30px 0; display: grid; grid-template-columns: 56px 1fr; gap: 22px; border-bottom: 1px solid rgba(255,255,255,.17); }
.loop-list li > span { color: #f1c95c; font: 700 11px/1.4 ui-monospace, monospace; }
.loop-list h3 { color: white; }
.loop-list p { margin: 9px 0 0; color: #b8cad5; font-size: 15px; line-height: 1.6; }

.safeguards { background: var(--canvas-deep); }
.safeguard-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
.safeguard-grid article { min-height: 260px; padding: 38px 42px; display: grid; grid-template-columns: 54px 1fr; align-content: start; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.safeguard-grid article:nth-child(even) { border-right: 0; }
.safeguard-grid span { grid-row: 1 / span 2; color: var(--gold); font-size: 12px; font-weight: 750; }
.safeguard-grid p { grid-column: 2; }

.learning-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 96px; background: var(--white); }
.learning-intro h2 { margin-top: 24px; }
.learning-intro > p:last-child { max-width: 600px; margin: 30px 0 0; color: var(--muted); font-size: 18px; line-height: 1.7; }
.research-board { border-top: 1px solid var(--line); }
.research-board article { position: relative; padding: 30px 0 30px 26px; border-bottom: 1px solid var(--line); }
.research-board article::before { content: ""; position: absolute; left: 0; top: 37px; width: 8px; height: 8px; border-radius: 50%; background: var(--teal); }
.research-board article.active::before { background: var(--gold); box-shadow: 0 0 0 6px rgba(214,163,42,.14); }
.research-board span { color: var(--teal-dark); font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.research-board .active span { color: #946b0f; }
.research-board h3 { margin-top: 9px; }
.research-board p { margin: 9px 0 0; color: var(--muted); font-size: 15px; line-height: 1.6; }

.evidence-section { display: grid; grid-template-columns: .8fr 1fr .8fr; gap: 70px; align-items: start; background: var(--gold-pale); border-top: 1px solid rgba(214,163,42,.35); border-bottom: 1px solid rgba(214,163,42,.35); }
.evidence-section h2 { margin-top: 24px; }
blockquote { margin: 0; padding: 34px 0 0; border-top: 3px solid var(--gold); }
blockquote p { margin: 0; color: var(--navy); font-family: Georgia, serif; font-size: 34px; line-height: 1.25; }
blockquote footer { margin-top: 24px; color: #856411; font-size: 14px; font-weight: 650; }
.evidence-copy { margin: 0; color: #586773; font-size: 17px; line-height: 1.75; }

.boundaries { display: grid; grid-template-columns: .75fr 1.25fr; gap: 96px; color: white; background: #061f36; }
.boundaries h2 { margin-top: 24px; color: white; }
.boundaries .kicker { color: #f1c95c; }
.boundaries ul { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.17); }
.boundaries li { padding: 26px 0; display: grid; grid-template-columns: .72fr 1.28fr; gap: 28px; border-bottom: 1px solid rgba(255,255,255,.17); }
.boundaries strong { color: white; font-size: 16px; }
.boundaries span { color: #b8cad5; font-size: 15px; line-height: 1.6; }

.contact-section { padding: 118px 32px; text-align: center; background: var(--canvas); }
.contact-section h2 { max-width: 780px; margin: 22px auto 0; }
.contact-section > p:not(.kicker) { max-width: 690px; margin: 28px auto 34px; color: var(--muted); font-size: 18px; line-height: 1.7; }
.site-footer { min-height: 210px; padding: 55px max(32px, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: 1fr 1.25fr 1fr; align-items: center; gap: 30px; background: var(--white); border-top: 1px solid var(--line); }
.footer-brand img { width: 200px; }
.site-footer p { margin: 0; color: var(--muted); font-size: 14px; text-align: center; }
.site-footer .copyright { text-align: right; }

@media (max-width: 1080px) {
  .hero { grid-template-columns: 1fr; gap: 64px; }
  .hero-copy { max-width: 820px; }
  .market-console { max-width: 820px; }
  .model-grid { grid-template-columns: repeat(2, 1fr); }
  .model-grid article { border-bottom: 1px solid var(--line); }
  .model-grid article:nth-child(2) { border-right: 0; }
  .model-grid article:nth-last-child(-n+2) { border-bottom: 0; }
  .learning-section, .evidence-section { grid-template-columns: 1fr; gap: 55px; }
  .learning-intro { max-width: 780px; }
  blockquote { max-width: 760px; }
}

@media (max-width: 760px) {
  .site-header, .hero { width: min(calc(100% - 36px), var(--max)); }
  .site-header { height: 82px; }
  .brand img { width: 185px; }
  nav { display: none; }
  .hero { min-height: 0; padding: 58px 0 78px; gap: 50px; }
  h1 { font-size: clamp(50px, 15vw, 70px); }
  .hero-intro { font-size: 18px; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .market-console { padding: 15px; }
  .console-top { grid-template-columns: 1fr 1fr; }
  .console-top strong { display: none; }
  .console-flow { grid-template-columns: 1fr; gap: 12px; }
  .console-flow b { display: none; }
  .console-flow div { grid-template-columns: 30px 1fr auto; align-items: center; }
  .console-result { grid-template-columns: 1fr; gap: 8px; }
  .section { padding: 84px 22px; }
  .statement, .section-heading, .section-heading.split, .loop-section, .learning-section, .evidence-section, .boundaries { grid-template-columns: 1fr; gap: 38px; }
  .statement div > p { font-size: 18px; }
  .section-heading { margin-bottom: 46px; }
  .model-grid, .safeguard-grid { grid-template-columns: 1fr; }
  .model-grid article { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .model-grid article:nth-child(2), .model-grid article:nth-last-child(-n+2) { border-bottom: 1px solid var(--line); }
  .model-grid article:last-child { border-bottom: 0; }
  .model-grid h3 { margin-top: 48px; }
  .loop-copy { position: static; }
  .safeguard-grid article { min-height: 0; padding: 32px 0; grid-template-columns: 42px 1fr; border-right: 0; }
  .evidence-section { gap: 45px; }
  blockquote p { font-size: 29px; }
  .boundaries li { grid-template-columns: 1fr; gap: 8px; }
  .site-footer { grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .footer-brand { margin: 0 auto; }
  .site-footer .copyright { text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}