@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&family=Manrope:wght@400;500;600;700&display=swap');

:root {
  --ink: #0b2425;
  --ink-soft: #355151;
  --deep: #061719;
  --deep-2: #0b2628;
  --paper: #f3f0e8;
  --paper-2: #e9e6dc;
  --white: #fffefa;
  --teal: #27c1ae;
  --teal-soft: #a9e4d9;
  --coral: #ee765f;
  --gold: #d6b05c;
  --line: rgba(11,36,37,.16);
  --radius: 3px;
  --shadow: 0 24px 70px rgba(3, 22, 23, .16);
  --container: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "DM Sans", sans-serif; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img, svg { display: block; }
button, a { -webkit-tap-highlight-color: transparent; }
.container { width: var(--container); margin-inline: auto; }
.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; }
.skip-link { position: fixed; z-index: 1000; top: 12px; left: 12px; transform: translateY(-160%); background: var(--white); padding: 10px 16px; font-weight: 700; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: fixed; z-index: 50; inset: 0 0 auto; height: 82px; color: var(--white); transition: background .3s, box-shadow .3s; }
.site-header.scrolled { background: rgba(6,23,25,.94); box-shadow: 0 1px 0 rgba(255,255,255,.1); backdrop-filter: blur(12px); }
.nav-wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; line-height: 1.05; }
.brand-mark { width: 34px; color: var(--teal); }
.brand-mark svg { width: 100%; fill: none; stroke: currentColor; stroke-width: 1.4; }
.brand-mark svg path:last-child { opacity: .55; }
.brand b, .brand em { display: block; font-family: Manrope, sans-serif; font-style: normal; letter-spacing: -.02em; }
.brand b { font-size: 15px; font-weight: 700; }
.brand em { color: var(--teal-soft); font-size: 12px; font-weight: 500; letter-spacing: .16em; text-transform: uppercase; margin-top: 3px; }
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a { color: rgba(255,255,255,.76); font-size: 14px; text-decoration: none; transition: color .2s; }
.site-nav a:hover, .site-nav a:focus-visible { color: white; }
.site-nav .nav-cta { color: var(--deep); background: var(--teal-soft); padding: 10px 16px; font-weight: 600; }
.menu-toggle { display: none; background: none; border: 0; padding: 8px; }
.menu-toggle > span:not(.sr-only) { display: block; width: 25px; height: 1px; margin: 5px; background: white; }

.hero { position: relative; min-height: 790px; padding: 180px 0 50px; color: var(--white); background: radial-gradient(circle at 78% 30%, #164c4c 0, var(--deep) 42%, #041214 100%); overflow: hidden; }
.hero-grid { position: absolute; inset: 0; opacity: .08; background-image: linear-gradient(rgba(255,255,255,.35) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.35) 1px, transparent 1px); background-size: 80px 80px; mask-image: linear-gradient(to bottom, black, transparent 86%); }
.orb { position: absolute; border: 1px solid rgba(169,228,217,.13); border-radius: 50%; }
.orb-one { width: 540px; height: 540px; right: -130px; top: 80px; box-shadow: 0 0 100px rgba(39,193,174,.06) inset; }
.orb-two { width: 350px; height: 350px; right: 80px; top: 175px; }
.hero-layout { position: relative; display: grid; grid-template-columns: 1.35fr .75fr; gap: 90px; align-items: center; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 22px; color: var(--ink-soft); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .18em; }
.eyebrow span { width: 28px; height: 1px; background: var(--teal); }
.hero .eyebrow, .inverse .eyebrow { color: var(--teal-soft); }
.hero h1 { max-width: 760px; margin: 0; font-family: Manrope, sans-serif; font-size: clamp(46px, 5.45vw, 76px); font-weight: 500; line-height: 1.06; letter-spacing: -.048em; }
.hero h1 em { display: block; color: var(--teal-soft); font-style: normal; font-weight: 400; }
.hero-lede { max-width: 700px; margin: 28px 0 0; color: rgba(255,255,255,.72); font-size: clamp(17px, 1.55vw, 20px); line-height: 1.62; }
.hero-actions { display: flex; gap: 28px; align-items: center; margin-top: 40px; }
.button { display: inline-flex; align-items: center; gap: 26px; padding: 15px 18px; text-decoration: none; font-size: 14px; font-weight: 700; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--deep); background: var(--teal-soft); }
.text-link { color: var(--white); text-underline-offset: 5px; font-size: 14px; }
.text-link span { color: var(--teal); margin-left: 7px; }
.thesis-card { position: relative; padding: 30px; border: 1px solid rgba(169,228,217,.25); background: rgba(4,18,20,.48); backdrop-filter: blur(12px); box-shadow: var(--shadow); }
.card-kicker { display: flex; align-items: center; gap: 8px; color: var(--teal-soft); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .14em; }
.pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 5px rgba(39,193,174,.12); }
.thesis-card h2 { margin: 30px 0 16px; font-family: Manrope, sans-serif; font-size: 30px; line-height: 1.15; letter-spacing: -.04em; }
.thesis-card > p { color: rgba(255,255,255,.62); font-size: 14px; }
.thesis-rule { height: 1px; margin: 28px 0 16px; background: rgba(255,255,255,.14); }
.thesis-card dl { margin: 0; }
.thesis-card dl div { display: flex; justify-content: space-between; padding: 8px 0; font-size: 12px; }
.thesis-card dt { color: rgba(255,255,255,.45); }
.thesis-card dd { margin: 0; color: var(--teal-soft); }
.hero-foot { position: relative; display: flex; gap: 30px; align-items: center; margin-top: 100px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.42); font-size: 11px; text-transform: uppercase; letter-spacing: .15em; }
.lens-list { display: flex; gap: 24px; color: rgba(255,255,255,.72); }

.signal-strip { background: var(--white); border-bottom: 1px solid var(--line); }
.strip-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.strip-grid > div { display: flex; gap: 13px; align-items: center; padding: 22px 20px; border-right: 1px solid var(--line); }
.strip-grid > div:first-child { border-left: 1px solid var(--line); }
.signal-dot { flex: 0 0 auto; width: 8px; height: 8px; border-radius: 50%; }
.signal-rising { background: var(--coral); box-shadow: 0 0 0 5px rgba(238,118,95,.12); }
.signal-watch { background: var(--gold); box-shadow: 0 0 0 5px rgba(214,176,92,.12); }
.signal-stable { background: var(--teal); box-shadow: 0 0 0 5px rgba(39,193,174,.12); }
.strip-grid p { margin: 0; line-height: 1.25; }
.strip-grid b, .strip-grid small { display: block; }
.strip-grid b { font-size: 12px; }
.strip-grid small { margin-top: 4px; color: #6c7e7d; font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }

.section { padding: 110px 0; }
.section-heading { display: grid; grid-template-columns: 1.2fr .65fr; gap: 100px; align-items: end; margin-bottom: 56px; }
.section-heading h2, .method-copy h2 { margin: 0; max-width: 700px; font-family: Manrope, sans-serif; font-size: clamp(38px, 5vw, 62px); font-weight: 500; line-height: 1.08; letter-spacing: -.055em; }
.section-heading > p { margin: 0 0 7px; color: var(--ink-soft); font-size: 17px; }
.feature-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 18px; }
.feature { position: relative; min-height: 260px; padding: 30px; background: var(--white); border: 1px solid var(--line); overflow: hidden; }
.feature-main { grid-row: span 2; min-height: 538px; padding: 38px; background: #dce9e3; }
.feature-meta { display: flex; justify-content: space-between; align-items: center; }
.feature-meta time { color: #718482; font-size: 11px; }
.tag { padding: 5px 8px; color: #385452; background: #e5efeb; font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; }
.tag-high { color: #783528; background: #f5d7cf; }
.feature-index { margin: 60px 0 10px; color: #64827e; font-family: Manrope, sans-serif; font-size: 12px; }
.feature:not(.feature-main) .feature-index { margin-top: 34px; }
.feature h3 { max-width: 650px; margin: 0; font-family: Manrope, sans-serif; font-size: 27px; line-height: 1.2; letter-spacing: -.035em; }
.feature-main h3 { font-size: clamp(34px, 4vw, 50px); }
.feature > p:not(.feature-index,.evidence-note) { max-width: 590px; color: var(--ink-soft); }
.feature-main > p:not(.feature-index) { max-width: 520px; }
.feature > a { position: relative; z-index: 2; display: inline-flex; gap: 24px; margin-top: 10px; font-size: 13px; font-weight: 700; text-underline-offset: 5px; }
.evidence-note { display: flex; align-items: center; gap: 8px; margin: 20px 0 0; color: #738281; font-size: 11px; }
.evidence-note span { width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }
.feature-visual { position: absolute; right: -45px; bottom: -60px; width: 260px; height: 260px; border: 1px solid rgba(11,36,37,.14); border-radius: 50%; }
.feature-visual span { position: absolute; inset: 24px; border: 1px solid rgba(11,36,37,.12); border-radius: 50%; }
.feature-visual span:nth-child(2) { inset: 55px; }
.feature-visual span:nth-child(3) { inset: 90px; }
.feature-visual i { position: absolute; width: 9px; height: 9px; left: 47px; top: 50px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 8px rgba(238,118,95,.14); }
.qualification { margin: 24px 0 0; padding-left: 16px; border-left: 2px solid var(--gold); color: var(--ink-soft); font-size: 12px; }

.section-dark { color: var(--white); background: var(--deep); }
.inverse > p { color: rgba(255,255,255,.55); }
.planes { border-top: 1px solid rgba(255,255,255,.15); }
.plane { display: grid; grid-template-columns: 80px 1fr; padding: 32px 10px; border-bottom: 1px solid rgba(255,255,255,.15); transition: background .2s, padding .2s; }
.plane:hover { padding-inline: 20px; background: rgba(255,255,255,.025); }
.plane > span { color: var(--teal); font: 12px Manrope, sans-serif; }
.plane div { display: grid; grid-template-columns: .65fr 1fr; gap: 60px; }
.plane h3 { margin: 0; font: 500 28px/1.2 Manrope, sans-serif; letter-spacing: -.035em; }
.plane p { max-width: 620px; margin: 2px 0 0; color: rgba(255,255,255,.54); }

.methodology-preview { background: var(--paper-2); }
.methodology-grid { display: grid; grid-template-columns: 1fr .85fr; gap: 110px; align-items: center; }
.method-copy > p:not(.eyebrow) { max-width: 620px; margin: 28px 0; color: var(--ink-soft); font-size: 17px; }
.button-dark { color: white; background: var(--ink); }
.evidence-stack { border-top: 1px solid var(--line); }
.evidence-stack > div { display: grid; grid-template-columns: 44px 1fr; gap: 14px; align-items: center; padding: 19px 6px; border-bottom: 1px solid var(--line); }
.evidence-stack > div > span { color: #77918e; font: 11px Manrope, sans-serif; }
.evidence-stack p { margin: 0; line-height: 1.3; }
.evidence-stack b, .evidence-stack small { display: block; }
.evidence-stack b { font: 600 15px Manrope, sans-serif; }
.evidence-stack small { margin-top: 4px; color: #71817f; }

.access { padding-top: 0; background: var(--paper-2); }
.access-card { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; padding: 60px; color: white; background: #123638; }
.access-card h2 { margin: 0; font: 500 clamp(32px,4vw,50px)/1.1 Manrope,sans-serif; letter-spacing: -.05em; }
.access-card > div:last-child { color: rgba(255,255,255,.67); font-size: 16px; }
.eyebrow.light { color: var(--teal-soft); }
.access-note { display: inline-block; margin-top: 18px; padding: 9px 12px; color: var(--teal-soft); border: 1px solid rgba(169,228,217,.25); font-size: 11px; text-transform: uppercase; letter-spacing: .09em; }

.site-footer { padding: 70px 0 28px; color: rgba(255,255,255,.6); background: #031012; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 80px; padding-bottom: 60px; }
.brand-footer { color: white; width: fit-content; }
.footer-grid > div:first-child > p { max-width: 300px; font-size: 13px; }
.footer-grid h2 { margin: 0 0 17px; color: white; font: 600 11px Manrope,sans-serif; text-transform: uppercase; letter-spacing: .14em; }
.footer-grid > div:not(:first-child) a { display: block; width: fit-content; margin: 8px 0; color: rgba(255,255,255,.55); font-size: 13px; text-decoration: none; }
.footer-grid a:hover { color: white; }
.footer-base { display: flex; justify-content: space-between; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); font-size: 11px; }
.footer-base p { margin: 0; }

/* Inner pages */
.inner-header { background: var(--deep); }
.inner-main { padding: 150px 0 100px; min-height: 70vh; }
.inner-hero { max-width: 820px; margin-bottom: 65px; }
.inner-hero h1 { margin: 0; font: 500 clamp(48px,6vw,76px)/1 Manrope,sans-serif; letter-spacing: -.06em; }
.inner-hero p { max-width: 680px; color: var(--ink-soft); font-size: 20px; }
.prose { max-width: 820px; }
.prose h2 { margin: 56px 0 18px; font: 600 30px/1.2 Manrope,sans-serif; letter-spacing: -.035em; }
.prose h3 { margin: 32px 0 10px; font: 600 18px Manrope,sans-serif; }
.prose p, .prose li { color: var(--ink-soft); }
.prose a { text-underline-offset: 4px; }
.prose table { width: 100%; border-collapse: collapse; margin: 25px 0; font-size: 14px; }
.prose th, .prose td { padding: 14px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose th { background: var(--paper-2); }
.notice { padding: 20px; border-left: 3px solid var(--teal); background: var(--white); }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal { opacity: 1; transform: none; transition: none; } * { animation-duration: .01ms !important; } }

@media (max-width: 900px) {
  .hero { min-height: auto; padding-top: 145px; }
  .hero-layout, .section-heading, .methodology-grid, .access-card { grid-template-columns: 1fr; gap: 50px; }
  .hero h1 { font-size: clamp(44px, 9vw, 64px); }
  .thesis-card { max-width: 520px; }
  .hero-foot { margin-top: 70px; }
  .strip-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-main { grid-row: auto; }
  .plane div { grid-template-columns: 1fr; gap: 8px; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; gap: 35px; }
}

@media (max-width: 680px) {
  :root { --container: min(100% - 28px, 1180px); }
  .site-header { height: 70px; }
  .menu-toggle { display: block; position: relative; z-index: 3; }
  .site-nav { position: fixed; inset: 0 0 auto; display: none; flex-direction: column; align-items: flex-start; gap: 20px; padding: 100px 28px 38px; background: var(--deep); box-shadow: 0 20px 35px rgba(0,0,0,.25); }
  .site-nav.open { display: flex; }
  .site-nav a { font-size: 17px; }
  .hero { padding-top: 125px; }
  .hero h1 { font-size: 42px; line-height: 1.08; letter-spacing: -.04em; }
  .hero-lede { font-size: 17px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .hero-foot { align-items: flex-start; flex-direction: column; gap: 13px; }
  .lens-list { flex-wrap: wrap; gap: 9px 15px; }
  .strip-grid { grid-template-columns: 1fr; }
  .strip-grid > div { border-left: 1px solid var(--line); }
  .section { padding: 75px 0; }
  .section-heading { margin-bottom: 35px; }
  .section-heading h2, .method-copy h2 { font-size: 39px; }
  .feature, .feature-main { min-height: auto; padding: 25px; }
  .feature-main { padding-bottom: 150px; }
  .feature h3, .feature-main h3 { font-size: 29px; }
  .plane { grid-template-columns: 45px 1fr; padding: 25px 0; }
  .plane h3 { font-size: 23px; }
  .access-card { width: 100%; padding: 40px 25px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .footer-base { align-items: flex-start; flex-direction: column; gap: 7px; }
  .inner-main { padding-top: 120px; }
  .prose table { display: block; overflow-x: auto; }
}