:root {
  --ink: #121417;
  --paper: #f4f1ea;
  --panel: #1d2024;
  --panel-2: #272b30;
  --signal: #ff5a1f;
  --signal-soft: #ff7443;
  --line: #cbc6bc;
  --muted: #676a68;
  --white: #fffdf8;
  --focus: #2879ff;
  --radius: 0;
  --page: min(1440px, calc(100vw - 64px));
  --font: "Segoe UI Variable", "Segoe UI", Arial, sans-serif;
  --display: Bahnschrift, "Arial Narrow", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
}
button, a { font: inherit; }
button { color: inherit; }
a { color: inherit; }
img, svg { max-width: 100%; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.visually-hidden {
  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;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-150%);
  background: var(--white);
  padding: 12px 18px;
  color: var(--ink);
  font-weight: 800;
}
.skip-link:focus { transform: translateY(0); }

.demo-strip {
  min-height: 34px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  padding: 7px 24px;
  background: var(--signal);
  color: var(--ink);
  font-size: 11px;
  letter-spacing: .08em;
  font-weight: 800;
  text-transform: uppercase;
}
.demo-strip span { padding-right: 16px; border-right: 1px solid rgba(18,20,23,.35); }
.demo-strip p { margin: 0; }

.site-header {
  width: var(--page);
  min-height: 92px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.brand { min-height: 44px; display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 2px solid var(--ink);
  background: var(--signal);
  font-size: 23px;
  font-weight: 900;
  line-height: 1;
  transform: skewX(-7deg);
}
.brand-copy { display: grid; line-height: 1; }
.brand-copy strong { font-size: 17px; letter-spacing: .11em; }
.brand-copy small { margin-top: 7px; color: var(--muted); font-size: 9px; letter-spacing: .14em; }
.site-nav { display: flex; align-items: center; gap: clamp(18px, 2vw, 38px); }
.site-nav a { min-height: 44px; display: inline-flex; align-items: center; font-size: 13px; font-weight: 750; text-decoration: none; }
.site-nav a:hover { color: var(--signal); }
.header-action {
  min-height: 44px;
  border: 0;
  background: var(--ink);
  color: var(--white);
  padding: 0 20px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
}
.header-action:hover { background: var(--signal); color: var(--ink); }
.menu-toggle { display: none; }

.hero {
  width: var(--page);
  min-height: 660px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  border-bottom: 1px solid var(--line);
}
.hero-copy { padding: clamp(68px, 8vw, 122px) clamp(32px, 5vw, 82px) 68px 0; }
.eyebrow,
.section-index {
  margin: 0 0 28px;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.hero h1,
.section h2,
.final-cta h2,
.demo-dialog h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(46px, 5.8vw, 92px);
  line-height: .96;
  letter-spacing: -.035em;
  font-weight: 850;
}
.hero h1 em,
.symptom-intro h2 em { color: var(--signal); font-style: normal; }
.hero-lead {
  max-width: 650px;
  margin: 34px 0 0;
  color: #4e514f;
  font-size: clamp(17px, 1.4vw, 21px);
  line-height: 1.55;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }
.button {
  min-height: 52px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border: 1px solid var(--ink);
  border-radius: 0;
  padding: 0 24px;
  cursor: pointer;
  text-decoration: none;
  font-size: 13px;
  font-weight: 850;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--signal); color: var(--ink); }
.button-primary:hover { background: var(--signal-soft); }
.button-secondary { background: transparent; }
.button-secondary:hover { background: var(--ink); color: var(--white); }
.button-dark { background: var(--ink); color: var(--white); }
.button-dark:hover { background: var(--white); color: var(--ink); }
.hero-principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 72px 0 0;
  padding: 0;
  list-style: none;
}
.hero-principles li { color: #4e514f; font-size: 12px; font-weight: 700; }
.hero-principles span { display: block; margin-bottom: 8px; color: var(--signal); font-size: 10px; }

.hero-visual {
  position: relative;
  min-height: 600px;
  overflow: hidden;
  background: var(--panel);
  color: var(--white);
}
.rotor {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(55vw, 510px);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
}
.rotor-ring { position: absolute; border-radius: 50%; }
.rotor-ring-outer { inset: 0; border: 2px solid rgba(255,255,255,.5); box-shadow: inset 0 0 0 32px rgba(255,255,255,.025); }
.rotor-ring-mid { inset: 18%; border: 38px solid #34383d; box-shadow: 0 0 0 2px rgba(255,255,255,.25); }
.rotor-ring-inner { inset: 34%; border: 2px dashed rgba(255,255,255,.4); }
.rotor-hub { position: absolute; inset: 42%; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 16px #121417, 0 0 0 18px rgba(255,255,255,.25); }
.rotor i { position: absolute; top: 47.8%; left: 47.8%; width: 4.4%; aspect-ratio: 1; border-radius: 50%; background: var(--white); opacity: .7; transform-origin: 50% 50%; }
.rotor i:nth-of-type(1) { transform: translateY(-145px); }
.rotor i:nth-of-type(2) { transform: rotate(60deg) translateY(-145px); }
.rotor i:nth-of-type(3) { transform: rotate(120deg) translateY(-145px); }
.rotor i:nth-of-type(4) { transform: rotate(180deg) translateY(-145px); }
.rotor i:nth-of-type(5) { transform: rotate(240deg) translateY(-145px); }
.rotor i:nth-of-type(6) { transform: rotate(300deg) translateY(-145px); }
.visual-label { position: absolute; z-index: 2; font-size: 11px; line-height: 1.2; }
.visual-label small { display: block; margin-bottom: 6px; color: var(--signal); font-size: 8px; letter-spacing: .12em; }
.visual-label strong { letter-spacing: .1em; }
.visual-label-a { top: 14%; right: 7%; text-align: right; }
.visual-label-b { bottom: 17%; left: 7%; }
.diagram-line { position: absolute; z-index: 1; height: 1px; background: rgba(255,255,255,.6); transform-origin: left; }
.diagram-line::after { content: ""; position: absolute; right: -3px; top: -3px; width: 7px; height: 7px; border-radius: 50%; background: var(--signal); }
.diagram-line-a { top: 27%; left: 49%; width: 37%; transform: rotate(-19deg); }
.diagram-line-b { bottom: 29%; left: 15%; width: 33%; transform: rotate(-25deg); }
.visual-status { position: absolute; right: 22px; bottom: 20px; display: flex; align-items: center; gap: 8px; color: #a9adaf; font-size: 8px; letter-spacing: .12em; }
.visual-status span { width: 7px; height: 7px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 4px rgba(255,90,31,.16); }

.service-ticker { overflow: hidden; background: var(--signal); border-bottom: 1px solid var(--ink); }
.service-ticker div {
  width: max-content;
  min-width: 100%;
  min-height: 58px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  gap: 28px;
  padding: 0 24px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
}
.service-ticker b { font-size: 19px; font-weight: 400; }

.section { width: var(--page); margin: 0 auto; padding: clamp(88px, 10vw, 150px) 0; }
.section-heading { display: grid; grid-template-columns: .38fr 1fr; gap: 40px; margin-bottom: 68px; }
.section-heading h2 { max-width: 1000px; font-size: clamp(42px, 5vw, 76px); }
.section-heading > div > p { max-width: 620px; margin: 28px 0 0; color: var(--muted); font-size: 16px; }
.section-index { padding-top: 8px; color: var(--signal); }
.section-index-light { color: #ff8459; }

.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service-card { min-height: 360px; display: flex; flex-direction: column; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.14); }
.service-card-dark { background: var(--panel); color: var(--white); }
.service-card-signal { background: var(--signal); }
.card-number { align-self: flex-end; color: var(--muted); font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.service-card-dark .card-number { color: #8e9294; }
.card-icon { position: relative; width: 52px; height: 52px; margin: 42px 0 34px; border: 2px solid currentColor; border-radius: 50%; }
.card-icon::before, .card-icon::after, .card-icon span { content: ""; position: absolute; }
.card-icon::before { inset: 12px; border: 2px solid currentColor; border-radius: 50%; }
.card-icon::after { width: 2px; height: 15px; left: 24px; top: -8px; background: currentColor; box-shadow: 0 53px 0 currentColor; }
.card-icon span { width: 15px; height: 2px; top: 24px; left: -8px; background: currentColor; box-shadow: 53px 0 0 currentColor; }
.card-icon-wheel::before { inset: 8px; border: 0; background: repeating-conic-gradient(currentColor 0 8deg, transparent 8deg 42deg); }
.card-icon-brake { border-radius: 4px; transform: rotate(45deg); }
.card-icon-brake::before { inset: 10px; border-radius: 2px; }
.card-icon-brake::after { top: 23px; left: 9px; width: 31px; height: 2px; box-shadow: none; }
.card-icon-bolt { border: 0; }
.card-icon-bolt::before { inset: 2px 13px; border: 0; border-radius: 0; background: currentColor; clip-path: polygon(53% 0, 100% 0, 66% 40%, 94% 40%, 26% 100%, 39% 54%, 7% 54%); }
.card-icon-bolt::after, .card-icon-bolt span { display: none; }
.card-icon-drop { border: 0; }
.card-icon-drop::before { inset: 3px 11px 8px; border: 2px solid currentColor; border-radius: 50% 50% 55% 55%; transform: rotate(45deg); }
.card-icon-drop::after, .card-icon-drop span { display: none; }
.card-icon-chat { border-radius: 5px; }
.card-icon-chat::before { inset: 11px 8px 15px; border-radius: 2px; }
.card-icon-chat::after { left: 9px; top: 35px; width: 11px; height: 9px; background: currentColor; clip-path: polygon(0 0,100% 0,0 100%); box-shadow: none; }
.card-icon-chat span { display: none; }
.service-card h3 { max-width: 310px; margin: 0; font-size: 24px; line-height: 1.08; letter-spacing: -.03em; }
.service-card p { max-width: 330px; margin: 16px 0 0; color: var(--muted); font-size: 14px; }
.service-card-dark p { color: #b5b8b9; }
.service-card small { margin-top: auto; padding-top: 24px; color: var(--muted); font-size: 8px; font-weight: 750; letter-spacing: .12em; }
.service-card a { min-height: 44px; display: inline-flex; align-items: flex-end; margin-top: auto; padding-top: 24px; font-size: 13px; font-weight: 850; text-decoration: none; }

.symptom-section { width: 100%; padding-left: max(32px, calc((100vw - min(1440px, calc(100vw - 64px))) / 2)); padding-right: max(32px, calc((100vw - min(1440px, calc(100vw - 64px))) / 2)); background: var(--panel); color: var(--white); }
.symptom-intro { display: grid; grid-template-columns: .38fr 1fr; gap: 40px; }
.symptom-intro h2 { max-width: 980px; font-size: clamp(44px, 5vw, 80px); }
.symptom-intro > p:last-child { grid-column: 2; max-width: 650px; margin: 26px 0 60px; color: #aeb1b3; }
.symptom-workspace { display: grid; grid-template-columns: .9fr 1.1fr; border: 1px solid #404449; }
.symptom-options { display: flex; flex-direction: column; }
.symptom-options button { min-height: 82px; display: grid; grid-template-columns: 54px 1fr; align-items: center; border: 0; border-right: 1px solid #404449; border-bottom: 1px solid #404449; padding: 0 28px; background: transparent; color: #aeb1b3; text-align: left; cursor: pointer; font-size: 15px; font-weight: 750; }
.symptom-options button:last-child { border-bottom: 0; }
.symptom-options button span { color: #6f7377; font-size: 9px; letter-spacing: .12em; }
.symptom-options button:hover { background: #24282d; color: var(--white); }
.symptom-options button.is-active { background: var(--signal); color: var(--ink); }
.symptom-options button.is-active span { color: var(--ink); }
.symptom-result { min-height: 410px; position: relative; padding: clamp(34px, 5vw, 74px); overflow: hidden; background: #17191c; }
.result-topline { display: flex; justify-content: space-between; color: #999da0; font-size: 8px; font-weight: 800; letter-spacing: .15em; }
.result-topline b { color: var(--signal); }
.result-symbol { position: absolute; top: 68px; right: 8%; width: 130px; height: 130px; border: 1px solid #34383c; border-radius: 50%; opacity: .65; }
.result-symbol::before, .result-symbol::after, .result-symbol span { content: ""; position: absolute; border: 1px solid #53575b; border-radius: 50%; }
.result-symbol::before { inset: 17px; }
.result-symbol::after { inset: 39px; background: var(--signal); border: 0; }
.result-symbol span { inset: 54px; background: #17191c; }
.symptom-result h3 { max-width: 580px; margin: 78px 0 20px; font-size: clamp(28px, 3.3vw, 52px); line-height: 1; letter-spacing: -.04em; }
.symptom-result > p { max-width: 620px; color: #b4b7b9; }
.result-note { max-width: 620px; margin: 28px 0; padding: 16px 18px; border: 1px solid #34383c; background: #222529; color: #b4b7b9; font-size: 12px; }
.result-note strong { color: var(--white); }

.process-heading { margin-bottom: 60px; }
.process-list { margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.process-list li { min-height: 148px; display: grid; grid-template-columns: 100px 1fr 50px; gap: 32px; align-items: center; border-bottom: 1px solid var(--line); }
.process-number { color: var(--signal); font-size: 11px; font-weight: 850; letter-spacing: .12em; }
.process-list h3 { margin: 0; font-size: 26px; line-height: 1.1; }
.process-list p { max-width: 740px; margin: 10px 0 0; color: var(--muted); }
.process-list b { font-size: 28px; font-weight: 300; }

.proof { width: 100%; display: grid; grid-template-columns: 1.35fr .65fr; padding: 0; background: var(--panel); color: var(--white); }
.proof-panel { padding: clamp(78px, 9vw, 138px) max(32px, calc((100vw - min(1440px, calc(100vw - 64px))) / 2)); padding-right: clamp(36px, 7vw, 110px); }
.proof-panel h2 { max-width: 950px; font-size: clamp(38px, 4.5vw, 68px); }
.proof-panel > p { max-width: 750px; margin: 28px 0 48px; color: #b4b7b9; }
.proof-panel ul { margin: 0; padding: 0; list-style: none; }
.proof-panel li { min-height: 58px; display: flex; align-items: center; gap: 20px; border-top: 1px solid #3a3e42; color: #d7d9da; }
.proof-panel li:last-child { border-bottom: 1px solid #3a3e42; }
.proof-panel li span { color: var(--signal); font-size: 9px; letter-spacing: .1em; }
.proof-aside { display: flex; flex-direction: column; justify-content: flex-end; padding: 58px; background: var(--signal); color: var(--ink); }
.proof-aside-index { margin-bottom: auto; font-size: 10px; font-weight: 850; letter-spacing: .15em; }
.proof-aside p { max-width: 400px; margin: 140px 0 32px; font-size: clamp(24px, 2.5vw, 40px); font-weight: 800; line-height: 1.08; letter-spacing: -.035em; }

.final-cta { min-height: 390px; display: flex; justify-content: space-between; align-items: center; gap: 40px; padding: 80px max(32px, calc((100vw - min(1440px, calc(100vw - 64px))) / 2)); background: var(--signal); }
.final-cta h2 { max-width: 1000px; font-size: clamp(42px, 5vw, 76px); }
.final-cta .section-index { color: var(--ink); }
.final-cta .button { flex: 0 0 auto; }

.site-footer { min-height: 150px; display: grid; grid-template-columns: .7fr 1fr auto; gap: 48px; align-items: center; padding: 36px max(32px, calc((100vw - min(1440px, calc(100vw - 64px))) / 2)); background: var(--ink); color: var(--white); }
.site-footer p { max-width: 620px; color: #999da0; font-size: 11px; }
.site-footer > a:last-child { min-height: 44px; display: inline-flex; align-items: center; color: var(--signal); font-size: 12px; font-weight: 850; text-decoration: none; }
.brand-footer .brand-mark { border-color: var(--white); }
.brand-footer .brand-copy small { color: #999da0; }

.demo-dialog { width: min(620px, calc(100% - 32px)); border: 1px solid #3f4347; padding: clamp(30px, 5vw, 58px); background: var(--panel); color: var(--white); box-shadow: 20px 20px 0 rgba(255,90,31,.82); }
.demo-dialog::backdrop { background: rgba(6,7,8,.78); backdrop-filter: blur(4px); }
.demo-dialog h2 { margin-top: 12px; font-size: clamp(32px, 4vw, 54px); }
.demo-dialog > p:not(.section-index) { color: #b5b8ba; }
.demo-dialog ul { padding-left: 20px; color: #d8d9da; }
.demo-dialog .button { margin-top: 16px; }
.dialog-close { position: absolute; top: 14px; right: 16px; width: 42px; height: 42px; border: 0; background: transparent; color: var(--white); cursor: pointer; font-size: 32px; line-height: 1; }

@media (max-width: 1100px) {
  :root { --page: calc(100vw - 48px); }
  .site-nav { gap: 18px; }
  .site-nav a { display: none; }
  .hero { grid-template-columns: 1fr .82fr; }
  .hero-copy { padding-right: 38px; }
  .hero h1 { font-size: clamp(48px, 6vw, 72px); }
  .hero-principles { grid-template-columns: 1fr; margin-top: 48px; }
  .hero-principles li { display: grid; grid-template-columns: 28px 1fr; }
  .hero-principles span { margin: 0; }
  .rotor i { display: none; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .symptom-workspace { grid-template-columns: .8fr 1.2fr; }
  .proof { grid-template-columns: 1fr; }
  .proof-aside { min-height: 430px; padding: 50px max(32px, calc((100vw - min(1440px, calc(100vw - 64px))) / 2)); }
  .proof-aside p { margin-top: 100px; }
  .final-cta { align-items: flex-end; }
}

@media (max-width: 820px) {
  :root { --page: calc(100vw - 32px); }
  .demo-strip { justify-content: flex-start; gap: 10px; padding: 8px 16px; }
  .demo-strip span { flex: 0 0 auto; padding-right: 10px; }
  .demo-strip p { font-size: 8px; line-height: 1.3; }
  .site-header { min-height: 76px; position: relative; }
  .brand-mark { width: 40px; height: 40px; font-size: 20px; }
  .brand-copy strong { font-size: 15px; }
  .menu-toggle { width: 46px; height: 46px; display: grid; place-content: center; gap: 7px; border: 1px solid var(--ink); background: transparent; cursor: pointer; }
  .menu-toggle span:not(.visually-hidden) { width: 22px; height: 2px; background: var(--ink); transition: transform .2s ease; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(-4.5px) rotate(-45deg); }
  .site-nav { display: none; position: absolute; z-index: 20; top: 75px; right: 0; left: 0; align-items: stretch; padding: 18px; background: var(--ink); }
  .site-header[data-menu-open="true"] .site-nav { display: flex; flex-direction: column; }
  .site-nav a { display: block; padding: 12px 4px; color: var(--white); }
  .header-action { margin-top: 6px; background: var(--signal); color: var(--ink); }

  .hero { min-height: 0; display: flex; flex-direction: column; }
  .hero-copy { padding: 66px 0 54px; }
  .hero h1 { font-size: clamp(39px, 11.5vw, 50px); overflow-wrap: anywhere; }
  .hero h1 br { display: block; }
  .hero-lead { margin-top: 26px; font-size: 17px; }
  .hero-actions { display: grid; }
  .hero-principles { gap: 12px; margin-top: 46px; }
  .hero-visual { min-height: 480px; }
  .rotor { width: 390px; }
  .visual-label-a { top: 10%; right: 5%; }
  .visual-label-b { bottom: 12%; left: 5%; }
  .service-ticker div { justify-content: flex-start; min-height: 52px; animation: ticker 18s linear infinite; }
  @keyframes ticker { to { transform: translateX(-35%); } }

  .section { padding: 84px 0; }
  .section-heading,
  .symptom-intro { grid-template-columns: 1fr; gap: 0; }
  .section-heading { margin-bottom: 46px; }
  .section-heading h2,
  .symptom-intro h2,
  .final-cta h2 { font-size: clamp(39px, 12vw, 55px); }
  .section-heading > div > p { margin-top: 22px; }
  .section-index { margin-bottom: 22px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 330px; }

  .symptom-section { padding-left: 16px; padding-right: 16px; }
  .symptom-intro > p:last-child { grid-column: 1; margin: 24px 0 42px; }
  .symptom-workspace { grid-template-columns: 1fr; }
  .symptom-options button { min-height: 68px; border-right: 0; }
  .symptom-result { min-height: 500px; padding: 32px 24px; }
  .result-symbol { top: 66px; right: -30px; opacity: .42; }
  .symptom-result h3 { margin-top: 108px; font-size: 36px; }

  .process-list li { min-height: 0; grid-template-columns: 38px 1fr; gap: 18px; padding: 30px 0; align-items: start; }
  .process-list li b { display: none; }
  .process-list h3 { font-size: 22px; }
  .process-list p { font-size: 14px; }

  .proof-panel { padding: 82px 16px; }
  .proof-panel h2 { font-size: clamp(38px, 11vw, 52px); }
  .proof-panel li { align-items: flex-start; padding: 18px 0; }
  .proof-aside { min-height: 380px; padding: 44px 16px; }
  .proof-aside p { margin-top: 100px; font-size: 32px; }
  .final-cta { min-height: 440px; flex-direction: column; align-items: stretch; justify-content: center; padding: 70px 16px; }
  .final-cta .button { margin-top: 28px; }
  .site-footer { grid-template-columns: 1fr; gap: 24px; padding: 44px 16px; }
}

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