:root {
  --ink: #15131b;
  --ink-soft: #5c5566;
  --ink-faint: #9691a0;
  --paper: #ffffff;
  --surface: #faf9fb;
  --line: rgba(21, 19, 27, 0.10);
  --line-strong: rgba(21, 19, 27, 0.18);
  --magenta: #d93c98;
  --purple: #6b3fd4;
  --gold: #d9a02c;
  --radius-sm: 6px;
  --radius-md: 12px;
  --content-w: 720px;
  --sidebar-w: 272px;
  --sidebar-w-tablet: 84px;
  --topbar-h: 64px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "DM Sans", system-ui, sans-serif;
  line-height: 1.65;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }
h1, h2, h3 { font-family: Manrope, sans-serif; letter-spacing: -.03em; line-height: 1.08; margin: 0; }
img { max-width: 100%; display: block; }

.sr-only {
  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: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

.accent { color: var(--magenta); }
.footnote { margin: 22px 0 0; color: var(--ink-faint); font-size: .78rem; line-height: 1.5; }

/* ---------- Topbar (mobile) ---------- */
.topbar {
  position: fixed; inset: 0 0 auto 0; height: var(--topbar-h); z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 18px; background: rgba(255,255,255,.92); backdrop-filter: none;
  border-bottom: 1px solid var(--line);
}
.topbar-brand img { height: 30px; width: auto; }
.nav-toggle {
  width: 38px; height: 38px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  background: none; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); cursor: pointer;
}
.nav-toggle span { width: 16px; height: 2px; background: var(--ink); display: block; }

.drawer-backdrop {
  position: fixed; inset: 0; background: rgba(21,19,27,.35); z-index: 45;
  opacity: 0; pointer-events: none; transition: opacity .25s ease;
}
.drawer-backdrop.is-visible { opacity: 1; pointer-events: auto; }

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0; width: min(300px, 84vw); z-index: 50;
  background: var(--paper); border-right: 1px solid var(--line);
  padding: 28px 22px 22px; display: flex; flex-direction: column;
  transform: translateX(-100%); transition: transform .3s ease;
  overflow-y: auto;
}
.sidebar.is-open { transform: translateX(0); }
.sidebar-brand img { height: 40px; width: auto; margin-bottom: 22px; }
.sidebar-kicker {
  margin: 0 0 26px; font-size: .68rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-faint);
}
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.sidebar-nav a {
  display: flex; align-items: baseline; gap: 12px; padding: 9px 8px; border-radius: var(--radius-sm);
  color: var(--ink-soft); font-size: .88rem; font-weight: 600; position: relative;
}
.sidebar-nav a:hover { color: var(--ink); background: var(--surface); }
.sidebar-nav a.is-active { color: var(--ink); }
.sidebar-nav a.is-active::before {
  content: ""; position: absolute; left: -22px; top: 8px; bottom: 8px; width: 3px;
  background: linear-gradient(var(--magenta), var(--purple)); border-radius: 3px;
}
.nav-num { font-size: .68rem; font-weight: 700; color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.sidebar-nav a.is-active .nav-num { color: var(--magenta); }
.sidebar-footer {
  margin: 22px 0 0; padding-top: 18px; border-top: 1px solid var(--line);
  font-size: .72rem; color: var(--ink-faint); line-height: 1.5;
}

@media (min-width: 860px) {
  .topbar, .nav-toggle, .drawer-backdrop { display: none; }
  .sidebar { transform: translateX(0); width: var(--sidebar-w-tablet); padding: 24px 12px; }
  .sidebar-kicker, .nav-label, .sidebar-footer { display: none; }
  .sidebar-brand img { height: 26px; margin: 0 0 20px; }
  .sidebar-nav a { flex-direction: column; align-items: center; gap: 2px; padding: 10px 4px; text-align: center; }
  .sidebar-nav a.is-active::before { left: 2px; right: 2px; top: auto; bottom: -2px; height: 3px; width: auto; }
  main { margin-left: var(--sidebar-w-tablet); }
}

@media (min-width: 1180px) {
  .sidebar { width: var(--sidebar-w); padding: 34px 26px; }
  .sidebar-kicker, .nav-label, .sidebar-footer { display: block; }
  .sidebar-brand img { height: 38px; margin: 0 0 22px; }
  .sidebar-nav a { flex-direction: row; align-items: baseline; gap: 12px; padding: 9px 8px; text-align: left; }
  .sidebar-nav a.is-active::before { left: -22px; right: auto; top: 8px; bottom: 8px; width: 3px; height: auto; }
  main { margin-left: var(--sidebar-w); }
}

/* ---------- Main / sections ---------- */
main { padding-top: var(--topbar-h); }
@media (min-width: 860px) { main { padding-top: 0; } }

.section {
  max-width: var(--content-w); margin: 0 auto; padding: 84px 24px;
  border-bottom: 1px solid var(--line);
  opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease;
}
.section.is-visible { opacity: 1; transform: none; }
.site-end { border-bottom: none; }
.section:last-of-type { border-bottom: none; }

.eyebrow {
  display: flex; align-items: center; gap: 10px; margin: 0 0 20px;
  font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-faint);
}
.eyebrow-num { color: var(--magenta); font-variant-numeric: tabular-nums; }
h2 { font-size: clamp(2.1rem, 4.4vw, 3.2rem); font-weight: 800; }
.section-intro { max-width: 560px; margin: 26px 0 0; color: var(--ink-soft); font-size: 1.02rem; }
.row-kicker { margin: 0 0 6px; font-size: .68rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--purple); }

/* ---------- Hero ---------- */
.hero-section { max-width: 1120px; padding-top: 96px; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 60px; align-items: start; }
.hero-main { min-width: 0; }
.hero-logo { width: min(300px, 68%); margin: 0 0 26px; }
.hero-kicker {
  margin: 0 0 22px; font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-soft);
}
.hero-headline { font-size: clamp(3.2rem, 7vw, 5.6rem); font-weight: 800; letter-spacing: -.04em; margin-bottom: 26px; overflow-wrap: anywhere; }
.hero-headline em { color: var(--magenta); font-style: normal; }
.hero-subline { margin: 0 0 28px; font-size: .95rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-faint); }
.hero-subline span { text-transform: none; letter-spacing: 0; display: block; font-weight: 500; margin-top: 2px; }
.hero-lead { max-width: 560px; font-size: 1.1rem; color: var(--ink-soft); margin: 0 0 34px; }
.hero-lead strong { color: var(--ink); }
.hero-cta { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; font-size: .92rem; color: var(--ink); border-bottom: 2px solid var(--ink); padding-bottom: 4px; }

.hero-system { display: flex; flex-direction: column; align-items: center; gap: 0; padding: 8px 0; }
.hero-system-node { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; max-width: 200px; }
.hero-system-icon { display: grid; place-items: center; width: 64px; height: 64px; }
.hero-system-icon--physical { color: var(--purple); }
.hero-system-icon--digital { color: var(--magenta); }
.hero-system-label { font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--ink); }
.hero-system-node p { margin: 0; font-size: .84rem; color: var(--ink-soft); }
.hero-system-connector {
  display: flex; align-items: center; justify-content: center; width: 1px; height: 64px; margin: 6px 0;
  background: var(--line-strong); position: relative;
}
.hero-system-connector span {
  position: absolute; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%;
  background: var(--paper); border: 1px solid var(--line-strong); font-family: Manrope, sans-serif; font-weight: 800;
  color: var(--ink-faint); font-size: 1rem;
}

@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.25fr .75fr; gap: 40px; }
  .hero-system { flex-direction: row; align-items: flex-start; justify-content: center; padding-top: 190px; min-width: 0; }
  .hero-system-node { min-width: 0; }
  .hero-system-connector { width: 56px; height: 1px; margin: 32px 0 0; }
}

/* ---------- Problem ---------- */
.problem-list { margin-top: 54px; display: flex; flex-direction: column; gap: 34px; }
.problem-row { display: grid; grid-template-columns: 40px 1fr; gap: 18px; padding-top: 28px; border-top: 1px solid var(--line); }
.problem-row:first-child { border-top: none; padding-top: 0; }
.row-num { font-family: Manrope, sans-serif; font-weight: 800; font-size: 1rem; color: var(--ink-faint); }
.problem-row h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
.problem-row p { margin: 0; color: var(--ink-soft); max-width: 520px; }

.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 56px; padding-top: 30px; border-top: 1px solid var(--line-strong); }
.stat strong { display: block; font-family: Manrope, sans-serif; font-size: 2.1rem; font-weight: 800; letter-spacing: -.03em; }
.stat span { display: block; margin-top: 4px; color: var(--ink-faint); font-size: .78rem; }

/* ---------- Innovation ---------- */
.innovation-statement { margin-bottom: 50px; }
.innovation-split { display: grid; grid-template-columns: 1fr auto 1fr; gap: 26px; align-items: center; }
.innovation-block h3 { font-size: 1.4rem; margin-bottom: 10px; }
.innovation-block p { margin: 0; color: var(--ink-soft); }
.innovation-join { font-family: Manrope, sans-serif; font-size: 1.6rem; font-weight: 800; color: var(--ink-faint); }
@media (max-width: 640px) {
  .innovation-split { grid-template-columns: 1fr; text-align: left; }
  .innovation-join { display: none; }
}

/* ---------- Physical ---------- */
.physical-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; align-items: center; margin-top: 50px; }
.trolley-visual { height: 300px; display: grid; place-items: center; position: relative; }
.trolley-handle { width: 150px; height: 30px; border: 6px solid var(--ink); border-bottom: 0; border-radius: 22px 22px 0 0; position: absolute; top: 30px; left: calc(50% - 75px); transform: skewX(-8deg); }
.trolley-body { width: 230px; height: 205px; padding: 12px; display: grid; gap: 8px; border-radius: var(--radius-md); background: var(--surface); border: 1px solid var(--line-strong); }
.drawer { display: flex; align-items: center; gap: 8px; padding: 0 12px; border-radius: 8px; background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--magenta); }
.drawer-b { border-left-color: var(--purple); }
.drawer-c { border-left-color: var(--gold); }
.drawer span { font-weight: 800; font-size: .8rem; color: var(--ink); margin-right: auto; }
.drawer i { width: 16px; height: 16px; border-radius: 4px; background: var(--surface); border: 1px solid var(--line); }
.trolley-wheel { position: absolute; bottom: 40px; width: 22px; height: 22px; border-radius: 50%; background: var(--ink); }
.wheel-left { left: 91px; } .wheel-right { right: 91px; }
.physical-categories { display: flex; flex-direction: column; gap: 26px; }
.category-row { display: grid; grid-template-columns: 40px 1fr; gap: 16px; }
.cat-letter { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; font-family: Manrope, sans-serif; font-weight: 800; font-size: .85rem; }
.category-row h3 { font-size: 1.05rem; margin-bottom: 5px; }
.category-row p { margin: 0; color: var(--ink-soft); font-size: .92rem; }
@media (max-width: 760px) { .physical-grid { grid-template-columns: 1fr; } }

/* ---------- Digital workflow ---------- */
.workflow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 14px; align-items: start; margin-top: 54px; }
.workflow-step { text-align: center; }
.workflow-num {
  display: inline-grid; place-items: center; width: 34px; height: 34px; margin-bottom: 14px;
  border: 1px solid var(--ink); border-radius: 50%; font-weight: 800; font-family: Manrope, sans-serif; font-size: .9rem;
}
.workflow-step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.workflow-step p { margin: 0; color: var(--ink-soft); font-size: .88rem; }
.workflow-line { height: 1px; background: var(--line-strong); margin-top: 17px; }
.workflow-details { list-style: none; margin: 54px 0 0; padding: 26px 0 0; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 14px; }
.workflow-details li { color: var(--ink-soft); padding-left: 20px; position: relative; }
.workflow-details li::before { content: "—"; position: absolute; left: 0; color: var(--ink-faint); }
.workflow-details strong { color: var(--ink); }
@media (max-width: 640px) {
  .workflow { grid-template-columns: 1fr; text-align: left; }
  .workflow-line { display: none; }
}

/* ---------- Live system ---------- */
.live-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 50px; border-radius: var(--radius-md); overflow: hidden; }
.live-card { background: #fff; padding: 26px; }
.live-card:last-child { grid-column: 1 / -1; }
.live-card h3 { font-size: 1rem; margin-bottom: 8px; }
.live-card p { margin: 0; color: var(--ink-soft); font-size: .9rem; }
@media (max-width: 640px) { .live-grid { grid-template-columns: 1fr; } }

/* ---------- Impact ---------- */
.impact-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 54px; }
.impact-stat { padding-top: 24px; border-top: 2px solid var(--ink); }
.impact-stat strong { display: block; font-family: Manrope, sans-serif; font-size: clamp(2.4rem, 5vw, 3.4rem); font-weight: 800; background: linear-gradient(135deg, var(--magenta), var(--purple)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.impact-stat span { display: block; margin-top: 8px; color: var(--ink-soft); font-size: .85rem; }
@media (max-width: 640px) { .impact-row { grid-template-columns: 1fr; } }

/* ---------- ROI ---------- */
.roi-list { margin-top: 50px; display: flex; flex-direction: column; }
.roi-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; padding: 22px 0; border-top: 1px solid var(--line); }
.roi-row:first-child { border-top: none; }
.roi-row h3 { font-size: 1.02rem; margin-bottom: 5px; }
.roi-row p { margin: 0; color: var(--ink-soft); font-size: .9rem; max-width: 420px; }
.roi-status { font-size: .7rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--gold); background: rgba(217,160,44,.12); padding: 6px 10px; border-radius: 999px; white-space: nowrap; }
@media (max-width: 560px) { .roi-row { grid-template-columns: 1fr; } .roi-status { justify-self: start; } }

/* ---------- Replicability ---------- */
.replicability-list { margin-top: 50px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px 40px; }
.replicability-row { padding-top: 20px; border-top: 1px solid var(--line); }
.replicability-row h3 { font-size: 1.05rem; margin-bottom: 8px; }
.replicability-row p { margin: 0; color: var(--ink-soft); font-size: .92rem; }
@media (max-width: 640px) { .replicability-list { grid-template-columns: 1fr; } }

/* ---------- Roadmap ---------- */
.roadmap-track { margin-top: 56px; display: flex; flex-direction: column; }
.roadmap-step { position: relative; padding: 0 0 34px 28px; border-left: 1px solid var(--line-strong); }
.roadmap-step:last-child { border-left-color: transparent; padding-bottom: 0; }
.roadmap-dot { position: absolute; left: -5px; top: 2px; width: 9px; height: 9px; border-radius: 50%; background: var(--ink-faint); }
.roadmap-step.is-current .roadmap-dot { background: var(--magenta); box-shadow: 0 0 0 4px rgba(217,60,152,.14); }
.roadmap-step h3 { font-size: 1.05rem; margin-bottom: 4px; }
.roadmap-step p { margin: 0; color: var(--ink-soft); font-size: .9rem; }
.roadmap-tag { display: inline-block; margin-top: 8px; font-size: .66rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--magenta); }

/* ---------- Footer ---------- */
.site-end { max-width: var(--content-w); margin: 0 auto; padding: 40px 24px 60px; color: var(--ink-faint); font-size: .78rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .section, .sidebar { transition: none; }
  .section { opacity: 1; transform: none; }
}