:root {
  --paper: #f2eddf;
  --paper-deep: #e0d9c9;
  --ink: #141817;
  --ink-soft: #343a37;
  --yellow: #f5c800;
  --orange: #f15a29;
  --green: #1c7b52;
  --line: rgba(20,24,23,.28);
  --muted: rgba(20,24,23,.6);
  --gutter: clamp(20px, 4.5vw, 74px);
  --content: 1480px;
  --sans: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --mono: "SFMono-Regular", "Roboto Mono", Consolas, monospace;
  --ease: cubic-bezier(.2,.75,.2,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
svg { display: block; max-width: 100%; }
.skip-link { position: fixed; z-index: 1000; top: 8px; left: 8px; transform: translateY(-160%); border: 1px solid var(--ink); padding: 10px 14px; background: var(--yellow); color: var(--ink); }
.skip-link:focus { transform: none; }
.progress { position: fixed; z-index: 100; inset: 0 0 auto; height: 3px; pointer-events: none; }
.progress i { display: block; width: 0; height: 100%; background: var(--orange); }

.demo-notice { display: flex; min-height: 34px; align-items: center; justify-content: center; gap: 16px; border-bottom: 1px solid var(--ink); padding: 7px var(--gutter); background: var(--yellow); }
.demo-notice b { font-family: var(--mono); font-size: 8px; letter-spacing: .12em; }
.demo-notice span { font-size: 9px; line-height: 1.5; }

.site-header { display: flex; height: 76px; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--ink); padding: 0 var(--gutter); background: var(--paper); }
.brand { display: flex; align-items: center; gap: 12px; }
.brand svg { width: 38px; height: 38px; }
.brand svg path:first-child { fill: var(--ink); }
.brand svg path:last-child { fill: var(--yellow); }
.brand span { display: grid; gap: 2px; }
.brand b { font-size: 14px; font-weight: 800; letter-spacing: .08em; }
.brand small { font-family: var(--mono); font-size: 6px; letter-spacing: .13em; }
.desktop-nav { display: flex; gap: clamp(28px, 4vw, 64px); }
.desktop-nav a { font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.desktop-nav a:hover { text-decoration: underline 2px var(--orange); text-underline-offset: 8px; }
.menu-toggle, .mobile-nav { display: none; }

.hero { position: relative; display: grid; min-height: 760px; grid-template-columns: .82fr 1.18fr; overflow: hidden; background: var(--paper); }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px); background-size: 80px 80px; opacity: .3; pointer-events: none; }
.hero-copy { position: relative; z-index: 2; display: grid; align-content: center; border-right: 1px solid var(--ink); padding: 110px var(--gutter); }
.hero-copy > p:first-child { margin: 0 0 32px; font-family: var(--mono); font-size: 8px; letter-spacing: .14em; }
.hero-copy h1 { margin: 0; font-family: var(--serif); font-size: clamp(66px,7.4vw,118px); font-weight: 500; letter-spacing: -.075em; line-height: .94; }
.hero-copy h1 span { color: var(--orange); }
.hero-copy > p:nth-of-type(2) { max-width: 600px; margin: 34px 0 0; color: var(--muted); font-size: 13px; line-height: 1.9; }
.hero-copy > a { display: flex; width: 220px; min-height: 58px; align-items: center; justify-content: space-between; margin-top: 36px; border: 1px solid var(--ink); padding: 0 20px; background: var(--yellow); font-size: 10px; font-weight: 800; }
.hero-copy > a i { font-size: 18px; font-style: normal; }
.route-board { position: relative; z-index: 2; align-self: center; margin: 50px var(--gutter); border: 1px solid var(--ink); background: var(--ink); color: var(--paper); box-shadow: 14px 14px 0 var(--yellow); }
.route-board > p { display: flex; align-items: center; justify-content: space-between; margin: 0; border-bottom: 1px solid rgba(255,255,255,.25); padding: 15px 18px; }
.route-board > p span { color: rgba(255,255,255,.55); font-family: var(--mono); font-size: 7px; }
.route-board > p b { color: var(--yellow); font-family: var(--mono); font-size: 9px; }
.route-board svg { width: 100%; padding: 18px; }
.route-board .route { fill: none; stroke: rgba(255,255,255,.25); stroke-width: 3; }
.route-board .route--two { stroke-dasharray: 7 6; }
.route-board .route--three { stroke: rgba(245,200,0,.5); }
.route-board .nodes circle { fill: var(--paper); }
.route-board .labels text { fill: rgba(255,255,255,.62); font-family: var(--mono); font-size: 13px; }
.route-board .cargo { fill: var(--orange); }
.route-board .cargo--one { animation: cargoOne 7s linear infinite; }
.route-board .cargo--two { animation: cargoTwo 8.5s linear infinite; }
@keyframes cargoOne {
  0% { transform: translate(0,0); }
  20% { transform: translate(162px,-116px); }
  42% { transform: translate(320px,-224px); }
  65% { transform: translate(506px,-318px); }
  100% { transform: translate(774px,-318px); }
}
@keyframes cargoTwo {
  0% { transform: translate(0,0); }
  26% { transform: translate(228px,-98px); }
  50% { transform: translate(406px,-194px); }
  75% { transform: translate(600px,-278px); }
  100% { transform: translate(774px,-278px); }
}
.route-board dl { display: grid; grid-template-columns: repeat(3,1fr); margin: 0; border-top: 1px solid rgba(255,255,255,.25); }
.route-board dl div { display: grid; gap: 8px; border-right: 1px solid rgba(255,255,255,.25); padding: 17px; }
.route-board dl div:last-child { border-right: 0; }
.route-board dt { color: rgba(255,255,255,.48); font-size: 8px; }
.route-board dd { margin: 0; font-family: var(--mono); font-size: 11px; }
.board-disclosure { display: block; border-top: 1px solid rgba(255,255,255,.25); padding: 11px 18px; color: rgba(255,255,255,.52); font-family: var(--mono); font-size: 7px; }
.hero-index { position: absolute; z-index: 3; right: var(--gutter); bottom: 13px; margin: 0; font-family: var(--mono); font-size: 7px; }

.truth-grid { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.truth-grid p { display: flex; min-height: 72px; align-items: center; gap: 14px; margin: 0; border-right: 1px solid var(--ink); padding: 14px var(--gutter); font-size: 10px; font-weight: 700; }
.truth-grid p:last-child { border-right: 0; }
.truth-grid span { color: var(--orange); font-family: var(--mono); font-size: 8px; }

.section { padding-right: max(var(--gutter),calc((100vw - var(--content))/2 + var(--gutter))); padding-left: max(var(--gutter),calc((100vw - var(--content))/2 + var(--gutter))); }
.eyebrow { margin: 0; color: var(--orange); font-family: var(--mono); font-size: 8px; letter-spacing: .14em; }
.section-heading { display: grid; grid-template-columns: .28fr 1fr .55fr; gap: 50px; align-items: end; }
.section-heading h2, .cargo-heading h2, .network-copy h2, .exceptions-copy h2, .planner-copy h2 { margin: 0; font-family: var(--serif); font-size: clamp(48px,5.5vw,84px); font-weight: 500; letter-spacing: -.06em; line-height: 1.03; }
h2 span { color: var(--orange); }
.section-heading > p:last-child { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.85; }

.modes { padding-top: 130px; padding-bottom: 140px; }
.mode-lab { display: grid; grid-template-columns: 300px 1fr; margin-top: 72px; border: 1px solid var(--ink); }
.mode-tabs { display: grid; border-right: 1px solid var(--ink); }
.mode-tabs button { position: relative; display: grid; grid-template-columns: 42px 1fr; gap: 6px 12px; min-height: 120px; align-content: center; border: 0; border-bottom: 1px solid var(--ink); padding: 22px; background: var(--paper); text-align: left; cursor: pointer; }
.mode-tabs button:last-child { border-bottom: 0; }
.mode-tabs button::after { position: absolute; inset: 0 auto 0 0; width: 6px; transform: scaleY(0); background: var(--orange); content: ""; transition: transform 180ms ease; }
.mode-tabs button[aria-selected="true"] { background: var(--yellow); }
.mode-tabs button[aria-selected="true"]::after { transform: none; }
.mode-tabs button > span { color: var(--orange); font-family: var(--mono); font-size: 7px; }
.mode-tabs b { font-size: 14px; }
.mode-tabs small { grid-column: 2; color: var(--muted); font-size: 9px; }
.mode-tabs button:focus-visible { z-index: 2; outline: 3px solid var(--ink); outline-offset: -5px; }
.mode-sheet { padding: clamp(38px,5vw,72px); }
.mode-sheet > p:first-child { display: flex; justify-content: space-between; margin: 0; color: var(--muted); font-family: var(--mono); font-size: 7px; }
.mode-sheet h3 { max-width: 900px; margin: 28px 0 50px; font-family: var(--serif); font-size: clamp(42px,4.4vw,68px); font-weight: 500; letter-spacing: -.04em; line-height: 1.08; }
.mode-matrix { display: grid; grid-template-columns: repeat(2,1fr); border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.mode-matrix div { display: grid; min-height: 132px; align-content: space-between; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); padding: 18px; }
.mode-matrix span { color: var(--muted); font-size: 9px; }
.mode-matrix b { font-size: 11px; font-weight: 500; line-height: 1.7; }
.mode-sheet > p:last-child { margin: 24px 0 0; color: var(--muted); font-size: 10px; line-height: 1.8; }

.cargo { padding-top: 130px; padding-bottom: 140px; background: var(--yellow); }
.cargo-heading { display: grid; grid-template-columns: .34fr 1.4fr; gap: 50px; align-items: start; }
.cargo-register { display: grid; grid-template-columns: repeat(4,1fr); margin-top: 72px; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.cargo-register article { display: grid; min-height: 350px; align-content: start; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); padding: 26px; }
.cargo-register article > span { color: var(--orange); font-family: var(--mono); font-size: 7px; }
.cargo-register h3 { margin: 85px 0 22px; font-family: var(--serif); font-size: 31px; font-weight: 500; }
.cargo-register p { margin: 0; font-size: 11px; line-height: 1.85; }
.cargo-register small { margin-top: auto; border-top: 1px dashed var(--ink); padding-top: 15px; color: var(--muted); font-size: 9px; line-height: 1.7; }

.network { display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(60px,8vw,140px); align-items: center; padding-top: 130px; padding-bottom: 140px; background: var(--ink); color: var(--paper); }
.network-map { border: 1px solid rgba(255,255,255,.5); }
.network-map > p { display: flex; align-items: center; justify-content: space-between; margin: 0; border-bottom: 1px solid rgba(255,255,255,.35); padding: 15px 18px; }
.network-map > p span { color: var(--yellow); font-family: var(--mono); font-size: 7px; }
.network-map > p b { font-size: 10px; }
.network-canvas { position: relative; min-height: 440px; overflow: hidden; }
.grid-lines { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.09) 1px,transparent 1px); background-size: 52px 52px; }
.network-canvas svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.network-canvas svg path { fill: none; stroke: var(--yellow); stroke-width: 2; stroke-dasharray: 6 7; }
.network-node { position: absolute; z-index: 2; display: grid; width: 105px; min-height: 62px; align-content: center; gap: 4px; border: 1px solid rgba(255,255,255,.66); padding: 8px 10px; background: var(--ink); color: white; text-align: left; cursor: pointer; }
.network-node span { color: var(--yellow); font-family: var(--mono); font-size: 7px; }
.network-node b { font-size: 10px; }
.network-node.is-active { border-color: var(--orange); background: var(--orange); }
.network-node.is-active span { color: white; }
.network-node.n1 { left: 3%; top: 67%; }
.network-node.n2 { left: 31%; top: 38%; }
.network-node.n3 { left: 58%; top: 57%; }
.network-node.n4 { right: 2%; top: 11%; }
.node-detail { border-top: 1px solid rgba(255,255,255,.35); padding: 28px; background: #202523; }
.node-detail > p { display: flex; justify-content: space-between; margin: 0; font-family: var(--mono); font-size: 7px; }
.node-detail > p span { color: var(--yellow); }
.node-detail h3 { margin: 18px 0 25px; font-family: var(--serif); font-size: 34px; font-weight: 500; }
.node-detail dl { margin: 0; border-top: 1px solid rgba(255,255,255,.25); }
.node-detail dl div { display: grid; grid-template-columns: 70px 1fr; gap: 14px; border-bottom: 1px solid rgba(255,255,255,.2); padding: 11px 0; }
.node-detail dt { color: rgba(255,255,255,.45); font-size: 8px; }
.node-detail dd { margin: 0; font-size: 10px; }
.network-disclosure { display: block; border-top: 1px solid rgba(255,255,255,.35); padding: 10px 18px; color: rgba(255,255,255,.52); font-family: var(--mono); font-size: 7px; }
.network-copy h2 { margin-top: 34px; }
.network-copy p:last-child { margin: 32px 0 0; color: rgba(255,255,255,.56); font-size: 11px; line-height: 1.9; }

.exceptions { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(60px,8vw,140px); padding-top: 130px; padding-bottom: 140px; }
.exceptions-copy h2 { margin-top: 34px; }
.exceptions-copy > p:last-child { margin: 32px 0 0; color: var(--muted); font-size: 11px; line-height: 1.9; }
.exception-flow { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.exception-flow li { display: grid; grid-template-columns: 48px 1fr 90px; gap: 22px; align-items: center; border-bottom: 1px solid var(--ink); padding: 24px 0; }
.exception-flow li > span { color: var(--orange); font-family: var(--mono); font-size: 8px; }
.exception-flow b { font-family: var(--serif); font-size: 21px; font-weight: 500; }
.exception-flow p { margin: 6px 0 0; color: var(--muted); font-size: 10px; }
.exception-flow small { justify-self: end; color: var(--muted); font-family: var(--mono); font-size: 7px; }

.tracking { padding: 130px max(var(--gutter),calc((100vw - var(--content))/2 + var(--gutter))) 140px; background: var(--orange); color: white; }
.tracking-head { display: grid; grid-template-columns: .35fr 1fr .45fr; gap: 50px; align-items: end; }
.tracking-head > p { display: grid; gap: 10px; margin: 0; }
.tracking-head > p span { font-family: var(--mono); font-size: 7px; }
.tracking-head > p b { color: var(--yellow); font-family: var(--mono); font-size: 15px; }
.tracking-head h2 { margin: 0; font-family: var(--serif); font-size: clamp(48px,5.4vw,82px); font-weight: 500; letter-spacing: -.06em; line-height: 1.02; }
.tracking-head > span { font-size: 10px; line-height: 1.8; }
.tracking-line { display: grid; grid-template-columns: repeat(4,1fr); margin: 72px 0 0; padding: 0; list-style: none; border-top: 1px solid white; border-left: 1px solid white; }
.tracking-line li { position: relative; display: grid; min-height: 250px; align-content: space-between; border-right: 1px solid white; border-bottom: 1px solid white; padding: 22px; }
.tracking-line li::before { position: absolute; top: -7px; left: 21px; width: 12px; height: 12px; border: 1px solid white; background: var(--orange); content: ""; }
.tracking-line li.done::before { background: var(--yellow); }
.tracking-line li.current::before { border-color: var(--yellow); background: white; box-shadow: 0 0 0 5px rgba(245,200,0,.4); }
.tracking-line li > span { font-family: var(--mono); font-size: 8px; }
.tracking-line b { font-family: var(--serif); font-size: 22px; font-weight: 500; }
.tracking-line p { margin: 9px 0 0; font-size: 10px; line-height: 1.7; }
.tracking-line small { font-family: var(--mono); font-size: 7px; }

.planner { display: grid; grid-template-columns: .65fr 1fr; gap: clamp(60px,8vw,130px); padding-top: 130px; padding-bottom: 140px; background: var(--paper-deep); }
.planner-copy h2 { margin-top: 34px; }
.planner-copy > p:last-of-type { margin: 32px 0 0; color: var(--muted); font-size: 11px; line-height: 1.9; }
.local-stamp { display: grid; width: fit-content; gap: 6px; margin-top: 32px; border: 2px solid var(--orange); padding: 13px 16px; transform: rotate(-1deg); color: var(--orange); }
.local-stamp b { font-family: var(--mono); font-size: 9px; }
.local-stamp span { font-size: 9px; }
.planner-form fieldset { margin: 0 0 25px; border: 0; padding: 0; }
.planner-form legend { width: 100%; margin-bottom: 12px; border-bottom: 1px solid var(--ink); padding-bottom: 10px; font-size: 11px; font-weight: 700; }
.planner-form legend span { display: inline-block; width: 36px; color: var(--orange); font-family: var(--mono); font-size: 8px; }
.choices { display: grid; grid-template-columns: repeat(3,1fr); gap: 7px; }
.choices label { position: relative; cursor: pointer; }
.choices input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.choices label span { display: grid; min-height: 50px; place-items: center; border: 1px solid rgba(20,24,23,.58); padding: 8px; font-size: 10px; }
.choices input:focus-visible + span { outline: 3px solid var(--orange); outline-offset: 2px; }
.choices input:checked + span { background: var(--ink); color: white; }
.planner-form > button { display: flex; width: 100%; min-height: 60px; align-items: center; justify-content: space-between; border: 0; padding: 0 22px; background: var(--orange); color: white; font-size: 11px; font-weight: 800; cursor: pointer; }
.planner-form > button span { font-size: 18px; }
.planner-result { align-self: center; border: 1px solid var(--paper); padding: clamp(34px,5vw,62px); background: var(--ink); color: white; }
.planner-result[hidden] { display: none; }
.planner-result > p:first-child { margin: 0; color: var(--yellow); font-family: var(--mono); font-size: 8px; }
.planner-result h3 { margin: 15px 0 30px; font-family: var(--serif); font-size: 38px; font-weight: 500; }
.planner-result dl { margin: 0; border-top: 1px solid rgba(255,255,255,.25); }
.planner-result dl div { display: grid; grid-template-columns: .45fr 1.55fr; gap: 16px; border-bottom: 1px solid rgba(255,255,255,.2); padding: 13px 0; }
.planner-result dt { color: rgba(255,255,255,.45); font-size: 9px; }
.planner-result dd { margin: 0; font-size: 10px; line-height: 1.7; }
.planner-result > p:nth-of-type(2) { margin: 22px 0 0; color: rgba(255,255,255,.58); font-size: 10px; line-height: 1.8; }
.planner-result > p b { color: white; }
.planner-result > button { margin-top: 20px; border: 0; border-bottom: 1px solid currentColor; padding: 0 0 5px; background: transparent; color: white; font-size: 10px; cursor: pointer; }

.site-footer { display: grid; grid-template-columns: .7fr 1.35fr .45fr; gap: 52px; align-items: end; max-width: var(--content); margin: 0 auto; padding: 82px var(--gutter) 108px; }
.site-footer > div b { font-size: 11px; }
.site-footer > div p { margin: 8px 0 0; color: var(--muted); font-size: 10px; line-height: 1.8; }
.site-footer > p { display: grid; justify-items: end; gap: 10px; margin: 0; color: var(--muted); font-family: var(--mono); font-size: 8px; }

.reveal { opacity: 0; transform: translateY(25px); transition: opacity 650ms var(--ease),transform 650ms var(--ease); }
.reveal.is-visible,.no-js .reveal { opacity: 1; transform: none; }

@media (max-width: 1120px) {
  .hero { grid-template-columns: .9fr 1.1fr; }
  .section-heading { grid-template-columns: .22fr 1fr; }
  .section-heading > p:last-child { grid-column: 2; }
  .mode-lab { grid-template-columns: 250px 1fr; }
  .network { grid-template-columns: 1.1fr .9fr; }
}

@media (max-width: 900px) {
  .desktop-nav { display: none; }
  .menu-toggle { position: relative; z-index: 52; display: flex; width: 76px; height: 40px; align-items: center; justify-content: space-between; border: 1px solid var(--ink); padding: 0 11px; background: transparent; color: var(--ink); font-family: var(--mono); font-size: 9px; cursor: pointer; }
  .menu-toggle i,.menu-toggle i::before { display: block; width: 15px; height: 1px; background: currentColor; content: ""; transition: transform 180ms ease; }
  .menu-toggle i::before { transform: translateY(4px); }
  .menu-toggle[aria-expanded="true"] i { transform: rotate(45deg); }
  .menu-toggle[aria-expanded="true"] i::before { transform: rotate(-90deg); }
  .mobile-nav { position: fixed; inset: 0 0 0 auto; z-index: 50; display: flex; width: min(88vw,390px); transform: translateX(102%); flex-direction: column; justify-content: center; border-left: 1px solid var(--ink); padding: 90px 38px; background: var(--yellow); color: var(--ink); transition: transform 280ms var(--ease); }
  .mobile-nav.is-open { transform: none; }
  .mobile-nav a { border-bottom: 1px solid var(--ink); padding: 21px 0; font-family: var(--serif); font-size: 18px; }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { border-right: 0; border-bottom: 1px solid var(--ink); }
  .route-board { margin-top: 70px; margin-bottom: 100px; }
  .truth-grid { grid-template-columns: repeat(2,1fr); }
  .truth-grid p:nth-child(2) { border-right: 0; }
  .truth-grid p:nth-child(-n+2) { border-bottom: 1px solid var(--ink); }
  .section-heading { grid-template-columns: 1fr; }
  .section-heading > p:last-child { grid-column: auto; }
  .mode-lab { grid-template-columns: 1fr; }
  .mode-tabs { grid-template-columns: repeat(4,1fr); border-right: 0; border-bottom: 1px solid var(--ink); }
  .mode-tabs button { grid-template-columns: 1fr; min-height: 105px; border-right: 1px solid var(--ink); border-bottom: 0; padding: 15px; }
  .mode-tabs button:last-child { border-right: 0; }
  .mode-tabs button::after { inset: auto 0 0; width: auto; height: 5px; transform: scaleX(0); }
  .mode-tabs button[aria-selected="true"]::after { transform: none; }
  .mode-tabs small { grid-column: auto; }
  .cargo-heading { grid-template-columns: 1fr; gap: 28px; }
  .cargo-register { grid-template-columns: repeat(2,1fr); }
  .network,.exceptions,.planner { grid-template-columns: 1fr; }
  .network-copy { order: -1; }
  .tracking-head { grid-template-columns: 1fr 1fr; }
  .tracking-head h2 { grid-column: 1 / -1; grid-row: 1; }
  .tracking-line { grid-template-columns: repeat(2,1fr); }
  .site-footer { grid-template-columns: 1fr 1.3fr; }
  .site-footer > p { grid-column: 1 / -1; grid-auto-flow: column; justify-content: space-between; justify-items: start; }
}

@media (max-width: 620px) {
  :root { --gutter: 18px; }
  .demo-notice { align-items: flex-start; gap: 8px; }
  .demo-notice b { font-size: 6px; }
  .demo-notice span { font-size: 7px; }
  .site-header { height: 66px; }
  .brand svg { width: 32px; height: 32px; }
  .brand b { font-size: 12px; }
  .brand small { font-size: 5px; }
  .hero { min-height: auto; }
  .hero-grid { background-size: 48px 48px; }
  .hero-copy { min-height: 650px; padding-top: 100px; padding-bottom: 80px; }
  .hero-copy > p:first-child { margin-bottom: 22px; font-size: 7px; }
  .hero-copy h1 { font-size: clamp(54px,17.5vw,72px); line-height: .94; }
  .hero-copy > p:nth-of-type(2) { margin-top: 26px; font-size: 11px; }
  .route-board { margin: 52px var(--gutter) 78px; box-shadow: 8px 8px 0 var(--yellow); }
  .route-board > p { padding: 11px; }
  .route-board .labels text { font-size: 18px; }
  .route-board dl div { padding: 11px; }
  .route-board dd { font-size: 8px; }
  .truth-grid p { min-height: 62px; padding: 12px 14px; font-size: 9px; }
  .modes,.cargo,.network,.exceptions,.tracking,.planner { padding-top: 88px; padding-bottom: 92px; }
  .section-heading { gap: 25px; }
  .section-heading h2,.cargo-heading h2,.network-copy h2,.exceptions-copy h2,.planner-copy h2,.tracking-head h2 { font-size: 44px; line-height: 1.03; }
  .mode-lab { margin-top: 48px; }
  .mode-tabs button { min-height: 88px; padding: 11px 8px; }
  .mode-tabs b { font-size: 11px; }
  .mode-tabs small { display: none; }
  .mode-sheet { padding: 28px 20px; }
  .mode-sheet h3 { margin: 22px 0 32px; font-size: 36px; }
  .mode-matrix { grid-template-columns: 1fr; border-left: 0; }
  .mode-matrix div { min-height: 92px; border-left: 1px solid var(--ink); }
  .cargo-register { grid-template-columns: 1fr; margin-top: 48px; border-left: 0; }
  .cargo-register article { min-height: 250px; border-left: 1px solid var(--ink); padding: 22px; }
  .cargo-register h3 { margin-top: 52px; }
  .network { gap: 45px; }
  .network-canvas { min-height: 330px; }
  .network-node { width: 82px; min-height: 54px; padding: 7px; }
  .network-node b { font-size: 8px; }
  .node-detail { padding: 22px 18px; }
  .exceptions { gap: 45px; }
  .exception-flow li { grid-template-columns: 36px 1fr; gap: 16px; }
  .exception-flow small { display: none; }
  .tracking-head { grid-template-columns: 1fr; gap: 28px; }
  .tracking-head h2 { grid-column: auto; grid-row: auto; }
  .tracking-line { grid-template-columns: 1fr; margin-top: 50px; border-left: 0; }
  .tracking-line li { min-height: 190px; border-left: 1px solid white; }
  .choices { gap: 5px; }
  .choices label span { min-height: 48px; padding: 6px; font-size: 9px; }
  .planner { gap: 50px; }
  .planner-result { padding: 30px 22px; }
  .planner-result dl div { grid-template-columns: 80px 1fr; }
  .site-footer { grid-template-columns: 1fr; gap: 34px; padding-top: 62px; padding-bottom: 78px; }
  .site-footer > p { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .route-board .cargo { animation: none; }
}