:root {
  --paper: #fffefa;
  --paper-deep: #f4efe8;
  --ink: #2a2226;
  --muted: #6d6464;
  --rule: #d2cbc1;
  --signal: #a6335d;
  --proof: #54705f;
  --boundary: #c28a2c;
  --shadow: rgba(42, 34, 38, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Avenir Next", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.55;
}
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--signal); outline-offset: 4px; }
.skip-link {
  position: absolute;
  left: 14px;
  top: -48px;
  z-index: 50;
  padding: 8px 12px;
  color: var(--paper);
  background: var(--ink);
}
.skip-link:focus { top: 14px; }
.brandbar {
  min-height: 64px;
  padding: 12px clamp(18px, 4vw, 56px);
  display: flex;
  align-items: center;
  gap: 24px;
  border-bottom: 2px solid var(--signal);
  color: var(--paper);
  background: var(--ink);
  font: 0.72rem/1.2 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.brandbar__identity {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  font: 800 1rem/1 "Arial Narrow", "Avenir Next Condensed", "Helvetica Neue", sans-serif;
  letter-spacing: 0.02em;
  text-decoration: none;
  text-transform: none;
}
.brandbar__identity img {
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 254, 250, 0.7);
  border-radius: 5px;
  background: var(--paper);
}
.brandbar__nav { margin-left: auto; display: flex; gap: 20px; }
.brandbar__nav a, .brandbar__cta { text-decoration: none; }
.brandbar__nav a { color: rgba(255, 254, 250, 0.7); }
.brandbar__nav a:hover { color: var(--paper); }
.brandbar__cta {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  padding: 10px 14px;
  color: var(--paper);
  background: var(--signal);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: none;
}
.hero {
  min-height: 680px;
  padding: clamp(54px, 8vw, 110px) clamp(18px, 7vw, 100px) clamp(64px, 9vw, 120px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: clamp(36px, 8vw, 120px);
  align-items: center;
  background:
    linear-gradient(90deg, transparent 0 49.9%, rgba(210, 203, 193, 0.55) 50%, transparent 50.1%),
    var(--paper);
}
.hero__copy { max-width: 720px; }
.kicker, .route__label, .sequence__top, .hero__boundary, .route__meta, .proof__media figcaption, .start small {
  font: 0.72rem/1.4 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.kicker { margin: 0 0 20px; color: var(--proof); }
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 770px;
  margin-bottom: 28px;
  font: 800 clamp(3.3rem, 7vw, 7.7rem)/0.9 "Arial Narrow", "Avenir Next Condensed", "Helvetica Neue", sans-serif;
  letter-spacing: -0.065em;
}
.hero__lede { max-width: 620px; margin-bottom: 28px; color: var(--muted); font-size: clamp(1.05rem, 1.8vw, 1.35rem); }
.hero__actions, .start__actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 48px;
  padding: 12px 16px;
  border: 1px solid var(--ink);
  font-weight: 800;
  text-decoration: none;
}
.button--primary { color: var(--paper); border-color: var(--signal); background: var(--signal); }
.button--primary:hover { background: var(--ink); border-color: var(--ink); }
.button--quiet { color: var(--ink); background: transparent; }
.button--quiet:hover { color: var(--paper); background: var(--ink); }
.hero__boundary { display: flex; flex-wrap: wrap; gap: 14px 22px; margin: 28px 0 0; color: var(--muted); }
.hero__boundary span::before { content: "＋"; margin-right: 6px; color: var(--boundary); }
.hero__sequence {
  position: relative;
  max-width: 560px;
  padding: 24px;
  border: 1px solid var(--ink);
  box-shadow: 14px 14px 0 var(--boundary);
  background: var(--paper-deep);
}
.sequence__top { display: flex; justify-content: space-between; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid var(--rule); }
.sequence__live { color: var(--proof); }
.sequence__live i { display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: var(--proof); animation: pulse 1.7s ease-in-out infinite; }
.sequence__track { display: flex; align-items: center; gap: 10px; padding: 48px 0; }
.sequence__line { height: 1px; flex: 1; min-width: 18px; background: var(--ink); }
.sequence__node { display: flex; flex-direction: column; gap: 8px; min-width: 76px; }
.sequence__node b { display: grid; place-items: center; width: 46px; height: 46px; border: 2px solid currentColor; font: 700 0.8rem/1 "SFMono-Regular", Consolas, monospace; }
.sequence__node span { font: 0.7rem/1 "SFMono-Regular", Consolas, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.sequence__node--signal { color: var(--signal); }
.sequence__node--boundary { color: var(--boundary); }
.sequence__node--proof { color: var(--proof); }
.sequence__readout { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.sequence__readout div { min-height: 92px; padding: 14px 10px; border-right: 1px solid var(--rule); }
.sequence__readout div:last-child { border-right: 0; }
.sequence__readout span { display: block; margin-bottom: 12px; color: var(--muted); font: 0.66rem/1 "SFMono-Regular", Consolas, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.sequence__readout strong { font-size: 0.9rem; }
.sequence__note { margin: 20px 0 0; color: var(--muted); font-size: 0.9rem; }
.signal-band { display: flex; justify-content: space-between; gap: 24px; padding: 18px clamp(18px, 7vw, 100px); color: var(--paper); background: var(--ink); font: 800 clamp(1rem, 2vw, 1.4rem)/1.2 "Arial Narrow", "Avenir Next Condensed", sans-serif; letter-spacing: -0.02em; }
.signal-band p { margin: 0; }
.signal-band p:last-child { color: #f3c4d5; text-align: right; }
.section { padding: clamp(70px, 9vw, 130px) clamp(18px, 7vw, 100px); }
.section-intro { max-width: 760px; margin-bottom: 58px; }
h2 { margin-bottom: 22px; font: 800 clamp(2.6rem, 5vw, 5.8rem)/0.94 "Arial Narrow", "Avenir Next Condensed", "Helvetica Neue", sans-serif; letter-spacing: -0.06em; }
.section-intro > p:last-child, .proof__copy > p { max-width: 620px; color: var(--muted); font-size: 1.1rem; }
.route-list { border-top: 2px solid var(--ink); }
.route { display: grid; grid-template-columns: 68px minmax(0, 1fr) minmax(160px, 220px); gap: 28px; padding: 28px 0; border-bottom: 1px solid var(--rule); }
.route__index { color: var(--signal); font: 800 1.25rem/1 "SFMono-Regular", Consolas, monospace; }
.route__label { margin-bottom: 12px; color: var(--proof); }
.route h3 { max-width: 640px; margin-bottom: 12px; font: 800 clamp(1.55rem, 2.5vw, 2.5rem)/0.98 "Arial Narrow", "Avenir Next Condensed", sans-serif; letter-spacing: -0.035em; }
.route__body > p:not(.route__label) { max-width: 660px; color: var(--muted); }
.route__meta { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; color: var(--muted); }
.route__meta strong { color: var(--ink); font-size: 0.78rem; letter-spacing: 0; text-transform: none; }
.route__link, .text-link { align-self: end; color: var(--signal); font-weight: 800; text-decoration: none; }
.route__link:hover, .text-link:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 5px; }
.proof { display: grid; grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr); gap: 48px clamp(36px, 8vw, 120px); align-items: start; background: var(--paper-deep); }
.proof__copy { padding-top: 4px; }
.proof__media { margin: 0; border: 1px solid var(--ink); background: var(--ink); }
.proof__media video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.proof__media figcaption { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 18px; padding: 12px 14px; color: rgba(255, 254, 250, 0.75); }
.proof__media figcaption span:last-child { color: #f3c4d5; }
.proof__links { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--rule); }
.proof__links a { display: flex; flex-direction: column; gap: 10px; padding: 18px 0; border-right: 1px solid var(--rule); color: var(--ink); text-decoration: none; }
.proof__links a:not(:first-child) { padding-left: 18px; }
.proof__links a:last-child { border-right: 0; }
.proof__links a:hover span { color: var(--signal); }
.proof__links b { color: var(--proof); font: 0.7rem/1 "SFMono-Regular", Consolas, monospace; letter-spacing: 0.06em; text-transform: uppercase; }
.process { background: var(--paper); }
.process__list { max-width: 940px; margin: 0; padding: 0; list-style: none; border-top: 2px solid var(--ink); }
.process__list li { display: grid; grid-template-columns: 80px minmax(0, 1fr); gap: 28px; padding: 28px 0; border-bottom: 1px solid var(--rule); }
.process__list li > span { color: var(--boundary); font: 800 1.15rem/1 "SFMono-Regular", Consolas, monospace; }
.process__list h3 { margin-bottom: 8px; font: 800 2rem/1 "Arial Narrow", "Avenir Next Condensed", sans-serif; letter-spacing: -0.04em; }
.process__list p { max-width: 720px; margin: 0; color: var(--muted); }
.start { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 380px); gap: 48px clamp(36px, 8vw, 120px); padding: clamp(70px, 9vw, 120px) clamp(18px, 7vw, 100px); color: var(--paper); background: var(--ink); }
.start .kicker { color: #a9c2b1; }
.start h2 { max-width: 720px; color: var(--paper); }
.start__copy > p:last-child { max-width: 620px; color: rgba(255, 254, 250, 0.68); }
.start__actions { align-content: start; }
.start__actions .button--quiet { color: var(--paper); border-color: rgba(255, 254, 250, 0.6); }
.start__actions .button--quiet:hover { color: var(--ink); background: var(--paper); }
.start small { width: 100%; color: rgba(255, 254, 250, 0.55); letter-spacing: 0; text-transform: none; }
.footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px clamp(18px, 4vw, 56px); border-top: 1px solid var(--rule); color: var(--muted); font-size: 0.85rem; }
.footer .brandbar__identity { color: var(--ink); }
.footer p { margin: 0; }
.footer > a:last-child { color: var(--signal); text-decoration: none; }
@keyframes pulse { 0%, 100% { opacity: 0.35; transform: scale(0.8); } 50% { opacity: 1; transform: scale(1); } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .sequence__live i { animation: none; } }
@media (max-width: 820px) {
  .brandbar { flex-wrap: wrap; }
  .brandbar__nav { order: 3; width: 100%; margin-left: 0; }
  .hero { grid-template-columns: 1fr; background: var(--paper); }
  .hero__sequence { max-width: none; }
  .route { grid-template-columns: 42px minmax(0, 1fr); gap: 16px; }
  .route__link { grid-column: 2; align-self: start; }
  .proof { grid-template-columns: 1fr; }
  .proof__links { grid-column: auto; }
  .start { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  h1 { font-size: clamp(3rem, 16vw, 5.6rem); }
  .brandbar__cta { width: 100%; justify-content: space-between; }
  .sequence__track { gap: 7px; }
  .sequence__node { min-width: 64px; }
  .sequence__readout { grid-template-columns: 1fr; }
  .sequence__readout div { min-height: auto; border-right: 0; border-bottom: 1px solid var(--rule); }
  .sequence__readout div:last-child { border-bottom: 0; }
  .signal-band { flex-direction: column; }
  .signal-band p:last-child { text-align: left; }
  .proof__links { grid-template-columns: 1fr; }
  .proof__links a, .proof__links a:not(:first-child) { padding: 15px 0; border-right: 0; border-bottom: 1px solid var(--rule); }
  .proof__links a:last-child { border-bottom: 0; }
  .footer { align-items: flex-start; flex-direction: column; }
}