:root {
  color-scheme: light;
  --paper: #f7f8f5;
  --white: #ffffff;
  --ink: #171b1a;
  --muted: #626b68;
  --line: #d8dedb;
  --blue: #075ee6;
  --blue-dark: #064bb5;
  --green: #16824d;
  --amber: #b75b08;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); }
img { display: block; max-width: 100%; }
a { color: inherit; }

.skip-link { position: fixed; top: 8px; left: 8px; z-index: 100; padding: 10px 14px; background: var(--ink); color: white; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.site-header { height: 68px; padding: 0 clamp(20px, 4vw, 64px); display: flex; align-items: center; justify-content: space-between; gap: 24px; background: rgba(247, 248, 245, .94); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; backdrop-filter: blur(12px); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-size: 18px; font-weight: 750; }
.brand-mark { display: grid; place-items: center; width: 28px; height: 28px; background: var(--ink); color: white; font-size: 13px; font-weight: 800; border-radius: 6px; }
.site-header nav { display: flex; gap: clamp(18px, 3vw, 38px); }
.site-header nav a { color: var(--muted); font-size: 14px; text-decoration: none; }
.site-header nav a:hover, .site-header nav a:focus-visible { color: var(--ink); }
.header-action, .primary-action { display: inline-flex; align-items: center; gap: 9px; min-height: 42px; padding: 0 16px; background: var(--blue); color: white; border-radius: 6px; text-decoration: none; font-size: 14px; font-weight: 700; }
.header-action:hover, .primary-action:hover { background: var(--blue-dark); }

.hero { height: min(760px, calc(100svh - 118px)); min-height: 620px; position: relative; overflow: hidden; background: #dfe3e1; }
.hero > img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-shade { position: absolute; inset: 0; background: rgba(8, 12, 11, .42); }
.hero-content { position: absolute; left: clamp(24px, 7vw, 112px); bottom: clamp(70px, 11vh, 126px); width: min(660px, calc(100% - 48px)); color: white; }
.eyebrow, .section-number, .step-label { margin: 0 0 18px; text-transform: uppercase; font-size: 12px; line-height: 1.2; font-weight: 800; letter-spacing: .1em; }
.hero h1 { margin: 0; max-width: 620px; font-size: clamp(54px, 7.2vw, 102px); line-height: .91; letter-spacing: 0; }
.hero-copy { max-width: 610px; margin: 24px 0 28px; font-size: clamp(17px, 2vw, 21px); line-height: 1.5; text-shadow: 0 1px 16px rgba(0,0,0,.4); }
.hero-caption { position: absolute; right: clamp(24px, 4vw, 64px); bottom: 24px; margin: 0; color: white; font-size: 12px; font-weight: 650; }

.principles { max-width: 1440px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); border-left: 1px solid var(--line); }
.principles div { min-height: 138px; padding: 34px clamp(24px, 4vw, 54px); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 10px; }
.principles strong { font-size: 17px; }
.principles span { color: var(--muted); line-height: 1.5; }

.intro { max-width: 1280px; margin: 0 auto; padding: 126px clamp(24px, 5vw, 72px) 86px; display: grid; grid-template-columns: minmax(180px, .7fr) minmax(0, 1.6fr); gap: 48px; }
.section-number { color: var(--blue); }
.intro h2, .flow h2, .trust h2, .status h2 { margin: 0; font-size: clamp(38px, 5vw, 70px); line-height: 1.03; letter-spacing: 0; }
.intro > div > p { max-width: 740px; margin: 28px 0 0; color: var(--muted); font-size: 20px; line-height: 1.6; }

.walkthrough-step { max-width: 1440px; margin: 0 auto; padding: 74px clamp(24px, 5vw, 72px); display: grid; grid-template-columns: minmax(280px, .7fr) minmax(0, 1.7fr); gap: clamp(48px, 7vw, 108px); align-items: center; border-top: 1px solid var(--line); }
.walkthrough-step.reverse { grid-template-columns: minmax(0, 1.7fr) minmax(280px, .7fr); }
.walkthrough-step.reverse .step-copy { order: 2; }
.step-label { color: var(--green); }
.step-copy h3 { margin: 0 0 22px; font-size: clamp(30px, 3.5vw, 52px); line-height: 1.08; }
.step-copy > p:not(.step-label) { color: var(--muted); font-size: 17px; line-height: 1.65; }
.step-copy ul { list-style: none; margin: 26px 0 0; padding: 0; border-top: 1px solid var(--line); }
.step-copy li { padding: 13px 0 13px 22px; border-bottom: 1px solid var(--line); position: relative; font-size: 14px; font-weight: 650; }
.step-copy li::before { content: ""; position: absolute; left: 0; top: 19px; width: 7px; height: 7px; background: var(--green); border-radius: 50%; }
figure { margin: 0; min-width: 0; }
figure img { width: 100%; border: 1px solid #cbd1ce; box-shadow: 0 20px 50px rgba(23, 27, 26, .10); }
figcaption { margin-top: 12px; color: var(--muted); font-size: 12px; line-height: 1.5; }

.flow { padding: 110px clamp(24px, 5vw, 72px); background: var(--ink); color: white; }
.flow > * { max-width: 1296px; margin-left: auto; margin-right: auto; }
.flow .section-number { color: #7fb1ff; }
.flow h2 { max-width: 900px; }
.flow ol { margin-top: 72px; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); list-style: none; border-top: 1px solid #3c4441; border-left: 1px solid #3c4441; }
.flow li { min-height: 210px; padding: 24px; border-right: 1px solid #3c4441; border-bottom: 1px solid #3c4441; display: flex; flex-direction: column; }
.flow li span { color: #7fb1ff; font-size: 12px; font-weight: 800; }
.flow li strong { margin-top: auto; font-size: 19px; }
.flow li p { margin: 8px 0 0; color: #aeb7b3; font-size: 14px; line-height: 1.45; }

.trust { max-width: 1296px; margin: 0 auto; padding: 126px clamp(24px, 5vw, 72px); }
.trust-heading { display: grid; grid-template-columns: minmax(180px, .7fr) minmax(0, 1.6fr); gap: 48px; }
.trust-columns { margin-top: 72px; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.trust-columns > div { padding: clamp(30px, 5vw, 58px); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.status-label { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 28px; font-size: 13px; font-weight: 800; }
.status-label::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.available { color: var(--green); }
.planned { color: var(--amber); }
.trust-columns ul { margin: 0; padding: 0; list-style: none; }
.trust-columns li { padding: 14px 0; border-bottom: 1px solid var(--line); line-height: 1.45; }
.trust-note { margin: 28px 0 0; color: var(--muted); font-size: 14px; }

.status { padding: 96px clamp(24px, 7vw, 112px); background: #dfe8dd; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, .6fr); gap: clamp(50px, 9vw, 140px); align-items: end; }
.status .eyebrow { color: var(--green); }
.status > p { margin: 0; color: #46504c; font-size: 17px; line-height: 1.65; }

footer { min-height: 180px; padding: 46px clamp(24px, 4vw, 64px); background: var(--paper); border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: end; gap: 24px; }
footer p { margin: 0; color: var(--muted); font-size: 13px; }
footer p:last-child { text-align: right; }

@media (max-width: 900px) {
  .site-header nav { display: none; }
  .hero { min-height: 610px; height: calc(100svh - 112px); }
  .hero > img { object-position: 63% center; }
  .hero h1 { font-size: clamp(50px, 13vw, 78px); }
  .principles { grid-template-columns: 1fr; }
  .principles div { min-height: auto; }
  .intro, .trust-heading { grid-template-columns: 1fr; gap: 26px; }
  .walkthrough-step, .walkthrough-step.reverse { grid-template-columns: 1fr; gap: 42px; }
  .walkthrough-step.reverse .step-copy { order: 0; }
  .flow ol { grid-template-columns: 1fr 1fr; }
  .flow li { min-height: 170px; }
  .trust-columns { grid-template-columns: 1fr; }
  .status { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .site-header { height: 62px; padding: 0 16px; }
  .header-action { width: 42px; padding: 0; justify-content: center; font-size: 0; }
  .header-action span { font-size: 17px; }
  .hero { height: 73svh; min-height: 580px; }
  .hero-shade { background: rgba(8, 12, 11, .55); }
  .hero-content { left: 20px; bottom: 72px; width: calc(100% - 40px); }
  .hero h1 { font-size: clamp(45px, 15vw, 64px); }
  .hero-copy { font-size: 16px; }
  .hero-caption { left: 20px; right: 20px; bottom: 18px; }
  .intro { padding-top: 84px; }
  .walkthrough-step { padding-top: 58px; padding-bottom: 58px; }
  .flow { padding-top: 84px; padding-bottom: 84px; }
  .flow ol { grid-template-columns: 1fr; }
  .flow li { min-height: 150px; }
  .trust { padding-top: 84px; padding-bottom: 84px; }
  footer { grid-template-columns: 1fr; min-height: 220px; }
  footer p:last-child { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}