:root {
  --paper: #f2ede4;
  --paper-light: #faf7f1;
  --ink: #191917;
  --muted: #6f6962;
  --line: #d5ccbf;
  --red: #a33d31;
  --red-dark: #7f2f27;
  --dark: #191a18;
  --dark-line: #3c3b37;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "SimSun", serif;
  --sans: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
section[id], .section-shell[id] { scroll-margin-top: 18px; }
body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image: url("/public/assets/showcase/superstorm-paper-texture-20260831.webp");
  background-repeat: repeat;
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
body::selection { color: var(--paper-light); background: var(--red); }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--red); outline-offset: 4px; }

.reading-progress { position: fixed; z-index: 200; top: 0; right: 0; left: 0; height: 2px; pointer-events: none; }
.reading-progress span { display: block; width: 0; height: 100%; background: var(--red); }

.topbar {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 84px;
  padding: 0 clamp(24px, 5vw, 76px);
  background-color: rgba(242, 237, 228, .94);
  border-bottom: 1px solid rgba(25, 25, 23, .12);
  backdrop-filter: blur(12px);
  transition: min-height .25s ease, background-color .25s ease;
}
.topbar.is-compact { min-height: 68px; background-color: rgba(250, 247, 241, .97); }
.brand { display: flex; align-items: center; gap: 11px; width: max-content; min-height: 44px; }
.brand img { width: 40px; height: 40px; object-fit: contain; transition: transform .25s ease; }
.brand:hover img { transform: rotate(-5deg); }
.brand span { display: grid; gap: 2px; }
.brand strong { font-size: 15px; letter-spacing: .01em; }
.brand small { font-size: 8px; font-weight: 800; letter-spacing: .18em; }
.topbar nav { display: flex; align-items: center; gap: 30px; }
.topbar nav a { position: relative; min-height: 44px; padding: 14px 0 12px; font-size: 12px; font-weight: 750; }
.topbar nav a::after { position: absolute; right: 0; bottom: 7px; left: 0; height: 1px; content: ""; background: var(--red); transform: scaleX(0); transform-origin: left; transition: transform .22s ease; }
.topbar nav a:hover::after, .topbar nav a:focus-visible::after, .topbar nav a.is-active::after { transform: scaleX(1); }
.header-actions { display: flex; justify-self: end; align-items: center; gap: 14px; }
.access-note { font-size: 10px; font-weight: 850; letter-spacing: .1em; white-space: nowrap; }
.access-cta, .menu-toggle, .nav-demo-button { min-height: 44px; border: 0; background: transparent; cursor: pointer; }
.access-cta { padding: 0 0 1px; border-bottom: 1px solid var(--red); color: var(--red-dark); }
.access-cta:hover, .access-cta:focus-visible { color: var(--ink); border-color: var(--ink); }
.menu-toggle, .nav-demo-button { display: none; }
.language-switch { display: flex; align-items: center; gap: 2px; min-height: 44px; color: rgba(25, 25, 23, .45); }
.language-switch button {
  position: relative;
  min-width: 42px;
  min-height: 44px;
  padding: 0 6px;
  color: rgba(25, 25, 23, .48);
  font: inherit;
  font-size: 10px;
  font-weight: 850;
  letter-spacing: .08em;
  background: none;
  border: 0;
  cursor: pointer;
}
.language-switch button::after { position: absolute; right: 7px; bottom: 8px; left: 7px; height: 1px; content: ""; background: var(--red); transform: scaleX(0); transition: transform .2s ease; }
.language-switch button:hover, .language-switch button:focus-visible, .language-switch button[aria-pressed="true"] { color: var(--ink); }
.language-switch button:focus-visible { outline-width: 1px; outline-offset: 0; }
.language-switch button[aria-pressed="true"]::after { transform: scaleX(1); }

.section-shell { width: min(1180px, calc(100% - 64px)); margin: 0 auto; }
.overline { margin: 0; color: var(--red-dark); font-size: 11px; font-weight: 850; letter-spacing: .18em; }
.section-kicker { display: flex; align-items: center; gap: 12px; color: var(--red-dark); }
.section-kicker > span { display: grid; place-items: center; width: 33px; height: 33px; border: 1px solid var(--red); border-radius: 50%; font-size: 10px; font-weight: 850; }
.section-kicker b { font-size: 11px; letter-spacing: .11em; }
.section-heading { margin: 43px 0 70px; }
.split-heading { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(260px, .7fr); align-items: end; gap: 74px; }
.section-heading h2, .closing h2, .handoff h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(42px, 4.9vw, 68px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.045em;
}
.section-heading > p { margin: 0 0 5px; color: var(--muted); font-size: 15px; line-height: 1.85; }

.hero { position: relative; min-height: 910px; padding-top: 84px; border-bottom: 1px solid var(--line); }
.hero-photo { position: absolute; z-index: 1; inset: 84px 0 0; overflow: hidden; margin: 0; background: #aa9c8d; }
.hero-photo::after { position: absolute; inset: 0; content: ""; border: 1px solid rgba(25,25,23,.08); pointer-events: none; }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 51% center; transition: transform .8s cubic-bezier(.2,.7,.2,1), filter .35s ease; }
.hero-photo:hover img { transform: scale(1.015); filter: saturate(.92); }
.hero-photo figcaption { position: absolute; right: 28px; bottom: 23px; padding: 8px 11px; color: var(--paper-light); background: rgba(25,25,23,.8); font-size: 8px; letter-spacing: .08em; }
.photo-label { position: absolute; z-index: 2; top: 22%; right: 8%; padding: 9px 12px; border-left: 2px solid var(--red); color: var(--ink); background: rgba(250,247,241,.94); font-size: 9px; font-weight: 750; opacity: 0; transform: translateY(8px); transition: opacity .25s ease, transform .25s ease; }
.hero-photo:hover .photo-label { opacity: 1; transform: translateY(0); }
.hero-copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 52%;
  min-height: 826px;
  padding: 104px clamp(24px, 3vw, 50px) 70px clamp(36px, 5.8vw, 92px);
  background-color: rgba(242, 237, 228, .8);
  box-shadow: 72px 0 115px rgba(242, 237, 228, .72);
}
.hero h1 { max-width: 670px; margin: 39px 0 0; font-family: var(--serif); font-size: clamp(41px, 4.3vw, 72px); font-weight: 700; line-height: 1.17; letter-spacing: -.055em; }
.hero h1 span, .handoff h2 span, .closing h2 span { color: var(--red); }
.hero-rule { width: 124px; height: 2px; margin: 33px 0 29px; background: var(--red); }
.hero-copy > p:not(.overline):not(.hand-note) { max-width: 560px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.85; }
.hero-copy .hero-intro { margin-bottom: 6px !important; color: var(--ink) !important; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px 24px; margin-top: 29px; }
.text-button { min-height: 44px; padding: 7px 0; border: 0; border-bottom: 1px solid var(--ink); background: transparent; cursor: pointer; font-size: 12px; font-weight: 850; }
.text-button.subtle { color: var(--muted); border-color: var(--line); }
.text-button:hover, .text-button:focus-visible { color: var(--red); border-color: var(--red); }
.demo-button { min-height: 46px; padding: 0 18px; border: 1px solid var(--ink); color: var(--paper-light); background: var(--ink); cursor: pointer; font-size: 12px; font-weight: 850; letter-spacing: .04em; transition: color .2s ease, background-color .2s ease, border-color .2s ease; }
.demo-button:hover, .demo-button:focus-visible { color: var(--paper-light); background: var(--red-dark); border-color: var(--red-dark); }
.hand-note { margin: auto 0 0; color: var(--red-dark); font-family: "KaiTi", "STKaiti", cursive; font-size: 17px; transform: rotate(-3deg); }

.statement { padding: 45px clamp(32px, 5vw, 76px) 43px; border-bottom: 1px solid var(--line); }
.statement > p { margin: 0 0 30px; font-family: var(--serif); font-size: 20px; }
.statement-facts { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); }
.statement-facts span { display: flex; align-items: baseline; gap: 8px; padding: 20px 21px 0 0; color: var(--muted); font-size: 10px; line-height: 1.7; }
.statement-facts b { color: var(--red-dark); font-family: var(--serif); font-size: 29px; font-weight: 500; }

.product-tour { padding-top: 138px; padding-bottom: 150px; }
.product-viewer { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 42px; align-items: stretch; }
.product-tabs { border-top: 1px solid var(--ink); }
.product-tabs button { display: grid; grid-template-columns: 34px 1fr; width: 100%; min-height: 118px; padding: 24px 0; border: 0; border-bottom: 1px solid var(--line); background: transparent; text-align: left; cursor: pointer; }
.product-tabs button > span { grid-row: 1 / 3; color: var(--red-dark); font-size: 8px; font-weight: 850; }
.product-tabs b { font-family: var(--serif); font-size: 19px; font-weight: 700; transition: color .2s ease; }
.product-tabs small { align-self: end; margin-top: 8px; color: var(--muted); font-size: 11px; line-height: 1.6; }
.product-tabs button[aria-selected="true"] b { color: var(--red); }
.product-tabs button[aria-selected="true"] { border-bottom-color: var(--ink); }
.product-screen { position: relative; overflow: hidden; margin: 0; border: 1px solid var(--line); background-color: #edf1f2; box-shadow: 0 28px 65px rgba(44,38,31,.12); }
.product-image-button { display: block; width: 100%; padding: 0; border: 0; background: transparent; cursor: zoom-in; }
.product-screen img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; object-position: center; transition: opacity .25s ease, transform .45s ease; }
.product-image-button:hover img { transform: scale(1.008); }
.product-screen.is-changing img { opacity: .35; transform: scale(.99); }
.product-screen figcaption { display: grid; grid-template-columns: 190px 1fr; gap: 25px; padding: 24px 26px 27px; border-top: 1px solid var(--line); background: var(--paper-light); }
.product-screen figcaption span { color: var(--red-dark); font-size: 8px; font-weight: 850; letter-spacing: .13em; }
.product-screen figcaption strong { font-family: var(--serif); font-size: 17px; line-height: 1.6; }
.product-dialog { width: min(1120px, calc(100% - 40px)); max-height: calc(100vh - 48px); padding: 0; border: 1px solid var(--line); color: var(--ink); background: var(--paper-light); box-shadow: 0 35px 100px rgba(25,25,23,.25); }
.product-dialog::backdrop { background: rgba(25,25,23,.76); }
.product-dialog-bar { display: flex; align-items: center; justify-content: space-between; min-height: 55px; padding: 0 20px; border-bottom: 1px solid var(--line); }
.product-dialog-bar span { color: var(--red-dark); font-size: 8px; font-weight: 850; letter-spacing: .14em; }
.product-dialog-bar button { min-width: 55px; min-height: 40px; border: 0; border-bottom: 1px solid var(--ink); background: transparent; cursor: pointer; font-size: 9px; font-weight: 800; }
.product-dialog > img { width: 100%; height: auto; max-height: calc(100vh - 155px); object-fit: contain; background: #edf1f2; }
.product-dialog > p { margin: 0; padding: 17px 20px 20px; border-top: 1px solid var(--line); font-family: var(--serif); font-size: 15px; line-height: 1.65; }

.task-story { padding: 138px 0 150px; background-color: rgba(250,247,241,.72); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.story-stage { border-top: 1px solid var(--ink); }
.stage-tabs { display: grid; grid-template-columns: repeat(4, 1fr); }
.stage-tabs button { position: relative; display: grid; min-height: 188px; padding: 28px 25px 22px; border: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: transparent; text-align: left; cursor: pointer; transition: background-color .25s ease; }
.stage-tabs button:first-child { border-left: 1px solid var(--line); }
.stage-tabs button::before { position: absolute; top: -1px; right: 0; left: 0; height: 3px; content: ""; background: transparent; }
.stage-tabs button[aria-selected="true"] { background-color: rgba(242,237,228,.78); }
.stage-tabs button[aria-selected="true"]::before { background: var(--red); }
.stage-tabs small { color: var(--red-dark); font-size: 7px; font-weight: 850; letter-spacing: .12em; }
.stage-tabs strong { align-self: end; margin-top: 28px; font-family: var(--serif); font-size: 27px; }
.stage-tabs button > span { margin-top: 6px; color: var(--muted); font-size: 9px; line-height: 1.6; }
.stage-tabs time { align-self: end; margin-top: 17px; color: var(--muted); font-size: 8px; }
.timeline-control { padding: 31px 0 23px; }
#taskRange { width: 100%; height: 18px; margin: 0; cursor: grab; accent-color: var(--red); -webkit-appearance: none; appearance: none; background: transparent; }
#taskRange:active { cursor: grabbing; }
#taskRange::-webkit-slider-runnable-track { height: 2px; background: var(--ink); }
#taskRange::-webkit-slider-thumb { width: 19px; height: 19px; margin-top: -8px; border: 2px solid var(--paper); border-radius: 50%; background: var(--red); box-shadow: 0 0 0 1px var(--red); -webkit-appearance: none; }
.timeline-meta { display: flex; justify-content: space-between; margin-top: 12px; color: var(--muted); font-size: 8px; }
.timeline-meta span:first-child { color: var(--red-dark); font-weight: 850; letter-spacing: .12em; }
.stage-detail { display: grid; grid-template-columns: 1fr .82fr; gap: 70px; padding: 58px 0 51px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.detail-label { margin: 0 0 16px; color: var(--red-dark); font-size: 8px; font-weight: 850; letter-spacing: .15em; }
.stage-detail h3 { max-width: 590px; margin: 0; font-family: var(--serif); font-size: clamp(31px, 3.5vw, 48px); line-height: 1.28; }
.stage-detail > div:first-child > p:last-child { max-width: 620px; margin: 21px 0 0; color: var(--muted); font-size: 11px; line-height: 1.9; }
.detail-output { display: grid; grid-template-columns: 82px 1fr; align-content: start; border-top: 1px solid var(--ink); }
.detail-output span, .detail-output b { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 9px; line-height: 1.65; }
.detail-output span { color: var(--muted); }
.story-controls { display: flex; justify-content: flex-end; gap: 20px; padding-top: 20px; }
.story-controls button { min-width: 66px; min-height: 44px; padding: 7px 0; border: 0; border-bottom: 1px solid transparent; background: transparent; cursor: pointer; font-size: 9px; font-weight: 800; }
.story-controls button:hover { color: var(--red); border-color: var(--red); }

.capabilities { padding-top: 145px; padding-bottom: 155px; }
.capability-heading { display: grid; grid-template-columns: 1fr 320px; align-items: end; gap: 70px; }
.capability-explorer { display: grid; grid-template-columns: minmax(320px, .82fr) minmax(0, 1.18fr); gap: 76px; border-top: 1px solid var(--ink); }
.capability-index button { display: grid; grid-template-columns: 45px 1fr; align-items: center; width: 100%; min-height: 76px; padding: 0 4px 0 0; border: 0; border-bottom: 1px solid var(--line); background: transparent; text-align: left; cursor: pointer; }
.capability-index span { color: var(--muted); font-size: 8px; transition: color .2s ease; }
.capability-index b { font-family: var(--serif); font-size: 19px; transition: transform .2s ease, color .2s ease; }
.capability-index button[aria-selected="true"] span, .capability-index button[aria-selected="true"] b { color: var(--red); }
.capability-index button[aria-selected="true"] b { transform: translateX(8px); }
.capability-detail { min-height: 510px; padding: 62px 0 0; }
.capability-detail h3 { margin: 24px 0 25px; font-family: var(--serif); font-size: clamp(35px, 4vw, 56px); line-height: 1.25; letter-spacing: -.04em; }
.capability-detail > p:not(.overline):not(.boundary) { max-width: 700px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.95; }
.capability-detail dl { margin: 43px 0 0; border-top: 1px solid var(--ink); }
.capability-detail dl div { display: grid; grid-template-columns: 110px 1fr; gap: 25px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.capability-detail dt { color: var(--muted); font-size: 9px; }
.capability-detail dd { margin: 0; font-size: 10px; font-weight: 700; line-height: 1.7; }
.boundary { margin: 24px 0 0; padding-left: 13px; border-left: 2px solid var(--red); color: var(--red-dark); font-size: 9px; line-height: 1.8; }

.handoff { padding: 145px 0; color: var(--paper-light); background: var(--dark); }
.handoff-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(70px, 9vw, 150px); align-items: center; }
.handoff .overline { color: #d17869; }
.handoff h2 { margin-top: 30px; font-size: clamp(48px, 5.7vw, 76px); }
.handoff-copy > p:not(.overline) { max-width: 540px; margin: 32px 0 0; color: #c4bdb3; font-size: 15px; line-height: 1.85; }
.invert-button { min-height: 46px; margin-top: 36px; padding: 10px 0; border: 0; border-bottom: 1px solid var(--paper-light); color: var(--paper-light); background: transparent; cursor: pointer; font-size: 12px; font-weight: 850; }
.invert-button:hover { color: #d17869; border-color: #d17869; }
.handoff-demo { position: relative; padding-top: 8px; border-top: 1px solid var(--dark-line); }
.handoff-progress { position: absolute; top: -1px; right: 0; left: 0; height: 2px; }
.handoff-progress span { display: block; width: 0; height: 100%; background: #d17869; transition: width .5s ease; }
.handoff-step { display: grid; grid-template-columns: 120px 1fr 210px; align-items: center; gap: 25px; min-height: 111px; border-bottom: 1px solid var(--dark-line); opacity: .62; transition: opacity .3s ease, transform .3s ease; }
.handoff-step.is-active, .handoff-step.is-complete { opacity: 1; }
.handoff-step.is-active { transform: translateX(8px); }
.handoff-step small { color: #c0b9af; font-size: 10px; letter-spacing: .08em; }
.handoff-step b { font-family: var(--serif); font-size: 19px; }
.handoff-step > span { color: #c0b9af; font-size: 11px; line-height: 1.7; }

.access-dialog { width: min(720px, calc(100% - 36px)); max-height: calc(100vh - 40px); padding: 0; border: 1px solid var(--line); color: var(--ink); background: var(--paper-light); box-shadow: 0 35px 100px rgba(25,25,23,.28); }
.access-dialog::backdrop { background: rgba(25,25,23,.72); }
.access-dialog-bar { display: flex; align-items: center; justify-content: space-between; min-height: 58px; padding: 0 22px; border-bottom: 1px solid var(--line); }
.access-dialog-bar span { color: var(--red-dark); font-size: 10px; font-weight: 850; letter-spacing: .12em; }
.access-dialog-bar button { min-width: 55px; min-height: 42px; padding: 0; border: 0; border-bottom: 1px solid var(--ink); background: transparent; cursor: pointer; font-size: 11px; font-weight: 800; }
.access-dialog-content { padding: clamp(32px, 6vw, 62px); }
.access-dialog h2 { margin: 22px 0 18px; font-family: var(--serif); font-size: clamp(38px, 6vw, 58px); line-height: 1.2; letter-spacing: -.04em; }
.access-dialog-content > p:not(.overline):not(.access-copy-status) { max-width: 590px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.85; }
.access-checklist { display: grid; gap: 0; margin: 34px 0; padding: 0; border-top: 1px solid var(--ink); list-style: none; }
.access-checklist li { display: grid; grid-template-columns: 48px 1fr; align-items: center; min-height: 62px; border-bottom: 1px solid var(--line); }
.access-checklist span { color: var(--red-dark); font-size: 10px; font-weight: 850; }
.access-checklist b { font-family: var(--serif); font-size: 18px; }
.access-dialog-actions { display: flex; align-items: center; gap: 24px; }
.access-copy-status { min-height: 22px; margin: 18px 0 0; color: var(--red-dark); font-size: 12px; }

html[lang="en"] .hero h1 { max-width: 620px; font-size: clamp(40px, 4vw, 64px); }

.deliverables { padding-top: 145px; padding-bottom: 150px; }
.deliverable-browser { display: grid; grid-template-columns: 220px 1fr; gap: 55px; }
.deliverable-filters { border-top: 1px solid var(--ink); }
.deliverable-filters button { width: 100%; min-height: 67px; padding: 0; border: 0; border-bottom: 1px solid var(--line); background: transparent; text-align: left; cursor: pointer; font-family: var(--serif); font-size: 17px; }
.deliverable-filters button[aria-selected="true"] { padding-left: 12px; color: var(--red); border-bottom-color: var(--ink); }
.deliverable-list { border-top: 1px solid var(--ink); }
.deliverable-list article { display: grid; grid-template-columns: 82px 1fr 90px; align-items: center; gap: 25px; min-height: 106px; border-bottom: 1px solid var(--line); }
.deliverable-list article > span { color: var(--red-dark); font-size: 9px; font-weight: 900; letter-spacing: .12em; }
.deliverable-list b { font-family: var(--serif); font-size: 18px; }
.deliverable-list p { margin: 7px 0 0; color: var(--muted); font-size: 10px; line-height: 1.7; }
.deliverable-list small { justify-self: end; color: var(--muted); font-size: 8px; }

.ecosystem { padding: 145px 0 150px; background-color: rgba(250,247,241,.72); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.ecosystem-rows { border-top: 1px solid var(--ink); }
.ecosystem-rows details { border-bottom: 1px solid var(--line); }
.ecosystem-rows summary { display: grid; grid-template-columns: 65px 1fr 190px; align-items: center; min-height: 94px; cursor: pointer; list-style: none; }
.ecosystem-rows summary::-webkit-details-marker { display: none; }
.ecosystem-rows summary span { color: var(--red-dark); font-size: 8px; }
.ecosystem-rows summary b { font-family: var(--serif); font-size: 25px; }
.ecosystem-rows summary small { justify-self: end; color: var(--muted); font-size: 9px; }
.ecosystem-rows summary small::after { margin-left: 18px; content: "+"; color: var(--ink); font-size: 16px; }
.ecosystem-rows details[open] summary small::after { content: "−"; }
.ecosystem-rows details > div { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; padding: 0 190px 39px 65px; }
.ecosystem-rows details p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.9; }

.scenarios { padding-top: 145px; padding-bottom: 150px; }
.scenario-tabs { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); }
.scenario-tabs button { min-height: 72px; border: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: transparent; cursor: pointer; font-family: var(--serif); font-size: 17px; }
.scenario-tabs button:first-child { border-left: 1px solid var(--line); }
.scenario-tabs button[aria-selected="true"] { color: var(--paper-light); background: var(--ink); }
.scenario-detail { padding: 73px 0 0; }
.scenario-detail h3 { margin: 26px 0 24px; font-family: var(--serif); font-size: clamp(38px, 4.5vw, 62px); line-height: 1.24; letter-spacing: -.04em; }
.scenario-detail > p:not(.overline) { max-width: 730px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.95; }
.scenario-detail ol { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin: 68px 0 0; padding: 0; list-style: none; }
.scenario-detail li { padding-top: 20px; border-top: 1px solid var(--ink); }
.scenario-detail li span { color: var(--red-dark); font-size: 8px; }
.scenario-detail li b { display: block; margin-top: 22px; font-family: var(--serif); font-size: 20px; }
.scenario-detail li p { margin: 10px 0 0; color: var(--muted); font-size: 10px; line-height: 1.8; }

.assurance { padding: 145px 0 150px; background-color: #e9e2d7; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.assurance-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--ink); border-left: 1px solid var(--line); }
.assurance-grid article { min-height: 260px; padding: 36px 39px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.assurance-grid span { color: var(--red-dark); font-size: 8px; font-weight: 850; letter-spacing: .14em; }
.assurance-grid h3 { margin: 32px 0 15px; font-family: var(--serif); font-size: 27px; }
.assurance-grid p { max-width: 490px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.9; }

.faq { padding-top: 145px; padding-bottom: 145px; }
.faq > h2 { margin: 42px 0 61px; font-family: var(--serif); font-size: clamp(44px, 5vw, 68px); letter-spacing: -.04em; }
.faq-list { border-top: 1px solid var(--ink); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; min-height: 84px; padding: 30px 60px 26px 0; cursor: pointer; list-style: none; font-family: var(--serif); font-size: 19px; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { position: absolute; top: 27px; right: 4px; content: "+"; color: var(--red-dark); font-family: var(--sans); font-size: 18px; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 810px; margin: 0; padding: 0 0 33px; color: var(--muted); font-size: 11px; line-height: 1.95; }

.closing { position: relative; overflow: hidden; display: flex; flex-direction: column; align-items: center; padding: 127px 30px 118px; background-color: var(--paper-light); border-top: 1px solid var(--line); text-align: center; }
.closing > img:not(.closing-brush) { position: relative; z-index: 2; width: 75px; height: 75px; padding: 7px; border: 1px solid var(--line); background: var(--paper-light); }
.closing .overline { position: relative; z-index: 2; margin-top: 26px; }
.closing h2 { position: relative; z-index: 2; margin-top: 31px; }
.closing > p:not(.overline) { position: relative; z-index: 2; max-width: 630px; margin: 25px 0 0; color: var(--muted); font-size: 11px; line-height: 1.9; }
.closing > a { position: relative; z-index: 2; display: inline-flex; align-items: center; min-height: 44px; margin-top: 28px; padding: 7px 0; border-bottom: 1px solid var(--ink); font-size: 10px; font-weight: 800; }
.closing > a:hover { color: var(--red); border-color: var(--red); }
.closing-brush { position: absolute; z-index: 1; right: -105px; bottom: -180px; width: 390px; opacity: .58; transform: rotate(8deg); pointer-events: none; }
footer { display: flex; justify-content: space-between; padding: 25px clamp(24px, 5vw, 76px) 31px; color: var(--muted); background: var(--paper); border-top: 1px solid var(--line); font-size: 8px; letter-spacing: .11em; }

/* Public showcase reading scale: outcome-first copy stays comfortably readable. */
.brand small { font-size: 9px; }
.topbar nav a { font-size: 13px; }
.access-note, .language-switch button { font-size: 11px; }
.overline { font-size: 12px; }
.section-kicker b { font-size: 12px; }
.section-heading > p { font-size: 17px; }
.hero-copy > p:not(.overline):not(.hand-note) { font-size: 17px; }
.hero-photo figcaption { font-size: 10px; }
.photo-label { font-size: 11px; }
.text-button, .demo-button, .invert-button { font-size: 13px; }
.statement > p { font-size: 22px; }
.statement-facts span { font-size: 13px; }
.product-tabs button > span, .product-screen figcaption span, .product-dialog-bar span { font-size: 10px; }
.product-tabs small { font-size: 13px; }
.product-screen figcaption strong { font-size: 19px; }
.stage-tabs button > span, .stage-detail > div:first-child > p:last-child { font-size: 15px; }
.stage-tabs small, .stage-tabs time, .timeline-meta, .detail-label, .detail-output span, .detail-output b, .story-controls button { font-size: 12px; }
.capability-index span { font-size: 10px; }
.capability-detail > p:not(.overline):not(.boundary) { font-size: 16px; }
.capability-detail dt, .capability-detail dd, .boundary { font-size: 13px; }
.handoff-step small { font-size: 11px; }
.handoff-step b { font-size: 21px; }
.handoff-step > span { font-size: 13px; }
.deliverable-list p, .scenario-detail li p { font-size: 14px; }
.deliverable-list small, .deliverable-list article > span, .scenario-detail li span { font-size: 11px; }
.ecosystem-rows summary span, .ecosystem-rows summary small { font-size: 11px; }
.ecosystem-rows details p { font-size: 14px; }
.scenario-detail > p:not(.overline) { font-size: 16px; }
.assurance-grid p, .faq-list details p, .closing > p:not(.overline) { font-size: 15px; }
.closing > a { font-size: 13px; }
footer { font-size: 11px; }

@media (max-width: 1040px) {
  .topbar { grid-template-columns: 1fr auto; }
  .topbar nav { position: fixed; z-index: 110; top: 76px; right: 22px; left: 22px; display: none; grid-template-columns: 1fr 1fr; gap: 0; padding: 18px; border: 1px solid var(--line); background: rgba(250,247,241,.98); box-shadow: 0 28px 70px rgba(25,25,23,.18); backdrop-filter: blur(14px); }
  .topbar.menu-open nav { display: grid; }
  .topbar nav a { min-height: 56px; padding: 19px 14px 14px; border-bottom: 1px solid var(--line); font-family: var(--serif); font-size: 17px; }
  .topbar nav a::after { right: 14px; bottom: 11px; left: 14px; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; min-width: 52px; padding: 0 8px; border-bottom: 1px solid var(--ink); font-size: 11px; font-weight: 850; }
  .nav-demo-button { display: block; grid-column: 1 / -1; min-height: 52px; margin-top: 15px; color: var(--paper-light); background: var(--ink); font-size: 12px; font-weight: 850; }
  .split-heading, .capability-heading { grid-template-columns: 1fr; gap: 27px; }
  .split-heading > p, .capability-heading > p { max-width: 620px; }
  .product-viewer { grid-template-columns: 210px 1fr; gap: 28px; }
  .capability-explorer { gap: 45px; }
  .handoff-grid { gap: 65px; }
  .handoff-step { grid-template-columns: 100px 1fr 160px; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 72px; }
  .section-shell { width: min(100% - 36px, 620px); }
  .topbar { min-height: 72px; padding: 0 18px; }
  .topbar.is-compact { min-height: 64px; }
  .brand img { width: 36px; height: 36px; }
  .header-actions { gap: 2px; }
  .access-note { display: none; }
  .language-switch button { min-width: 38px; padding-inline: 4px; }
  .menu-toggle { min-width: 45px; font-size: 12px; }
  .topbar nav { top: 69px; right: 12px; left: 12px; grid-template-columns: 1fr; max-height: calc(100vh - 85px); overflow-y: auto; padding: 14px; }
  .topbar nav a { min-height: 49px; padding: 15px 12px 12px; font-size: 16px; }
  .topbar nav a::after { right: 12px; left: 12px; }
  .section-heading { margin: 32px 0 47px; }
  .section-heading h2, .closing h2, .handoff h2 { font-size: clamp(36px, 10.8vw, 50px); }

  .hero { display: grid; min-height: 0; padding-top: 72px; }
  .hero-copy { grid-row: 1; width: 100%; min-height: 0; padding: 74px 23px 36px; background-color: var(--paper); background-image: url("/public/assets/showcase/superstorm-paper-texture-20260831.webp"); box-shadow: none; }
  .hero h1 { margin-top: 31px; font-size: clamp(45px, 13.8vw, 61px); line-height: 1.17; }
  html[lang="en"] .hero h1 { font-size: clamp(41px, 12.2vw, 52px); }
  .hero-rule { margin: 27px 0 24px; }
  .hero-copy > p:not(.overline):not(.hand-note) { font-size: 16px; line-height: 1.75; }
  .hero-photo { position: relative; grid-row: 2; inset: auto; min-height: 420px; }
  .hero-photo img { object-position: 57% center; }
  .photo-label { display: none; }
  .hero-photo figcaption { right: 14px; bottom: 14px; }
  .hero-actions { align-items: flex-start; gap: 10px 18px; margin-top: 23px; }
  .hand-note { margin-top: 23px; }

  .statement { padding: 38px 18px; }
  .statement-facts { grid-template-columns: 1fr 1fr; }
  .statement-facts span { display: grid; gap: 3px; padding-right: 12px; }

  .product-tour, .capabilities, .deliverables, .scenarios, .faq { padding-top: 91px; padding-bottom: 99px; }
  .product-viewer { grid-template-columns: 1fr; }
  .product-tabs { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(142px, 1fr); grid-template-columns: none; overflow-x: auto; overscroll-behavior-inline: contain; scrollbar-width: thin; }
  .product-tabs button { grid-template-columns: 1fr; align-content: start; min-height: 112px; padding: 17px 12px; border-right: 1px solid var(--line); }
  .product-tabs button > span { grid-row: auto; margin-bottom: 13px; }
  .product-tabs b { font-size: 17px; line-height: 1.35; }
  .product-tabs small { display: none; }
  .product-screen figcaption { grid-template-columns: 1fr; gap: 11px; padding: 18px; }
  .product-screen figcaption strong { font-size: 17px; }

  .task-story, .ecosystem, .assurance { padding: 91px 0 99px; }
  .stage-tabs { grid-template-columns: 1fr 1fr; }
  .stage-tabs button { min-height: 154px; padding: 21px 17px; }
  .stage-tabs strong { font-size: 23px; }
  .stage-detail { grid-template-columns: 1fr; gap: 43px; padding: 45px 0; }
  .stage-detail h3 { font-size: clamp(31px, 9vw, 42px); }
  .story-controls { justify-content: space-between; }

  .capability-explorer { grid-template-columns: 1fr; gap: 0; }
  .capability-index button { min-height: 65px; }
  .capability-detail { min-height: 0; padding-top: 52px; }
  .capability-detail h3 { font-size: clamp(34px, 9.5vw, 46px); }
  .capability-detail dl div { grid-template-columns: 85px 1fr; }

  .handoff { padding: 95px 0; }
  .handoff-grid { grid-template-columns: 1fr; gap: 65px; }
  .handoff-copy > p:not(.overline) { font-size: 16px; }
  .handoff-step { grid-template-columns: 75px 1fr; gap: 16px; padding: 19px 0; }
  .handoff-step > span { grid-column: 2; }

  .deliverable-browser { grid-template-columns: 1fr; gap: 28px; }
  .deliverable-filters { display: grid; grid-template-columns: 1fr 1fr; }
  .deliverable-filters button { min-height: 56px; border-right: 1px solid var(--line); }
  .deliverable-filters button[aria-selected="true"] { padding-left: 0; text-align: center; background-color: var(--ink); color: var(--paper-light); }
  .deliverable-list article { grid-template-columns: 58px 1fr; min-height: 125px; gap: 14px; }
  .deliverable-list small { grid-column: 2; justify-self: start; margin-top: -21px; }

  .ecosystem-rows summary { grid-template-columns: 40px 1fr 95px; }
  .ecosystem-rows summary b { font-size: 21px; }
  .ecosystem-rows details > div { grid-template-columns: 1fr; gap: 16px; padding: 0 0 31px 40px; }

  .scenario-tabs { grid-template-columns: 1fr 1fr; }
  .scenario-tabs button { font-size: 17px; }
  .scenario-detail { padding-top: 53px; }
  .scenario-detail h3 { font-size: clamp(34px, 9.5vw, 46px); }
  .scenario-detail ol { grid-template-columns: 1fr; gap: 30px; margin-top: 48px; }

  .assurance-grid { grid-template-columns: 1fr; }
  .assurance-grid article { min-height: 0; padding: 30px 25px 34px; }
  .assurance-grid h3 { font-size: 24px; }
  .faq-list summary { padding-right: 38px; font-size: 19px; line-height: 1.55; }
  .closing { padding: 98px 20px 90px; }
  .closing-brush { right: -120px; bottom: -190px; width: 310px; opacity: .36; }
  footer { display: grid; gap: 9px; padding: 23px 18px 28px; }
  .access-dialog-content { padding: 34px 22px 30px; }
  .access-dialog h2 { font-size: 38px; }
  .access-dialog-actions { align-items: stretch; flex-direction: column; gap: 10px; }
  .access-dialog-actions .text-button { width: 100%; }
}

@media (max-width: 420px) {
  .hero h1 { font-size: 47px; }
  html[lang="en"] .hero h1 { font-size: 43px; }
  .hero-actions { display: grid; gap: 7px; }
  .hero-actions .demo-button { width: 100%; }
  .statement-facts { grid-template-columns: 1fr; }
  .product-tabs b { font-size: 16px; }
  .stage-tabs { grid-template-columns: 1fr; }
  .stage-tabs button { grid-template-columns: 1fr auto; min-height: 128px; }
  .stage-tabs strong { grid-row: 2 / 4; grid-column: 2; align-self: center; }
  .scenario-tabs { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}