:root {
  --bg: #f7f7f4;
  --surface: #ffffff;
  --surface-2: #f0f1ed;
  --ink: #111417;
  --ink-2: #2b3035;
  --muted: #6a7076;
  --line: #dfe1dc;
  --line-strong: #c9ccc5;
  --gold: #c99a37;
  --gold-deep: #9c7120;
  --cyan: #14bfd1;
  --cyan-soft: rgba(20,191,209,.11);
  --dark: #11181d;
  --dark-2: #182127;
  --dark-muted: #a8b1b6;
  --max: 1240px;
  --radius: 22px;
  --shadow: 0 20px 60px rgba(20,24,28,.06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI Variable Display", "Segoe UI", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.section { padding: 108px 0; }

.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247,247,244,.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(17,20,23,.08);
}
.nav { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 800; letter-spacing: .18em; }
.brand-mark { width: 13px; height: 13px; border-radius: 50%; background: var(--gold); position: relative; box-shadow: 0 0 0 4px rgba(201,154,55,.11); }
.brand-mark::after { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: var(--ink); }
.nav-links { display: flex; align-items: center; gap: 28px; color: var(--muted); font-size: 14px; }
.nav-links a { transition: color .18s ease; }
.nav-links a:hover { color: var(--ink); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  border: 1px solid var(--ink);
  font-weight: 700;
  font-size: 14px;
  transition: transform .18s ease, background .18s ease;
}
.button:hover { transform: translateY(-1px); background: #000; }
.button-small { min-height: 40px; padding-inline: 16px; font-size: 13px; }
.text-link { color: var(--ink-2); font-weight: 650; font-size: 14px; border-bottom: 1px solid var(--line-strong); padding-bottom: 3px; }
.text-link:hover { border-color: var(--ink); }

.eyebrow { color: var(--gold-deep); font-size: 12px; font-weight: 850; letter-spacing: .17em; text-transform: uppercase; margin-bottom: 18px; }
h1,h2,h3,h4,p { margin-top: 0; }
h1 { font-size: clamp(52px, 6.4vw, 80px); line-height: .98; letter-spacing: -.052em; margin-bottom: 30px; font-weight: 760; max-width: 1000px; }
h1 span { color: var(--gold-deep); }
h2 { font-size: clamp(36px, 4.6vw, 60px); line-height: 1.02; letter-spacing: -.044em; margin-bottom: 22px; font-weight: 735; }
h3 { font-size: 24px; line-height: 1.18; letter-spacing: -.025em; }
h4 { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--gold-deep); margin-bottom: 10px; }
p { color: var(--muted); }

.hero { min-height: 760px; display: grid; grid-template-columns: minmax(0, 1fr) 290px; align-items: end; gap: 70px; padding-top: 136px; }
.hero-main { align-self: center; }
.hero-copy { max-width: 820px; font-size: 20px; color: var(--ink-2); }
.hero-actions { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; margin-top: 30px; }
.hero-note { align-self: end; padding: 22px 0 6px; border-top: 1px solid var(--line-strong); font-size: 14px; color: var(--muted); }
.hero-note span, .hero-note strong { display: block; }
.hero-note strong { color: var(--ink); margin-top: 4px; font-weight: 700; }

.problem-strip { border-block: 1px solid var(--line); background: var(--surface); }
.problem-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.problem-grid > div { padding: 32px 26px 34px; border-right: 1px solid var(--line); }
.problem-grid > div:first-child { border-left: 1px solid var(--line); }
.problem-grid span { display: block; color: var(--cyan); font-weight: 850; font-size: 12px; letter-spacing: .12em; margin-bottom: 20px; }
.problem-grid strong { display: block; font-size: 21px; letter-spacing: -.02em; margin-bottom: 8px; }
.problem-grid p { margin-bottom: 0; font-size: 14px; }

.section-heading { max-width: 820px; margin-bottom: 58px; }
.section-heading > p { font-size: 18px; max-width: 760px; }
.wide-heading { max-width: 960px; }

.collab-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.collab-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); display: grid; grid-template-columns: 145px minmax(0,1fr); gap: 28px; min-height: 480px; }
.collab-visual { display: grid; place-items: start center; border-radius: 18px; background: #fbfbf9; border: 1px solid #ecece7; min-height: 180px; overflow: hidden; }
.collab-visual img { width: 100%; height: 180px; object-fit: contain; padding: 10px; }
.collab-body h3 { margin-bottom: 26px; }
.product-name { color: var(--cyan); font-size: 12px; font-weight: 900; letter-spacing: .16em; margin: 2px 0 10px; }
.product-facts { margin: 0; }
.product-facts > div { padding: 14px 0; border-top: 1px solid var(--line); }
.product-facts dt { font-size: 11px; text-transform: uppercase; letter-spacing: .11em; font-weight: 850; color: var(--gold-deep); margin-bottom: 5px; }
.product-facts dd { margin: 0; color: var(--ink-2); font-size: 14.5px; }

.section-dark { background: var(--dark); color: #f7f8f6; }
.light-heading .eyebrow { color: #68d7e4; }
.light-heading p { color: var(--dark-muted); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature { min-height: 280px; padding: 30px; border-radius: var(--radius); border: 1px solid rgba(255,255,255,.12); background: var(--dark-2); }
.feature-index { color: var(--cyan); font-size: 12px; font-weight: 900; letter-spacing: .14em; margin-bottom: 58px; }
.feature h3 { margin-bottom: 14px; }
.feature p { color: var(--dark-muted); margin-bottom: 0; }

.solution-list { display: grid; gap: 22px; }
.solution-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.solution-head { display: grid; grid-template-columns: 72px minmax(0,1fr); gap: 22px; padding: 30px 32px 26px; border-bottom: 1px solid var(--line); align-items: start; }
.solution-head h3 { font-size: clamp(26px, 3.2vw, 42px); margin-bottom: 0; max-width: 900px; }
.solution-number { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line-strong); color: var(--gold-deep); font-weight: 850; font-size: 12px; }
.solution-facts { display: grid; grid-template-columns: .9fr 1.25fr 1fr; }
.solution-facts > div { padding: 28px 30px 32px; border-right: 1px solid var(--line); }
.solution-facts > div:last-child { border-right: 0; }
.solution-facts p { margin-bottom: 0; color: var(--ink-2); font-size: 15px; }

.section-soft { background: var(--surface-2); border-block: 1px solid var(--line); }
.construction-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 90px; align-items: start; }
.construction-intro { position: sticky; top: 120px; }
.construction-intro p { font-size: 18px; }
.principles { border-top: 1px solid var(--line-strong); }
.principles article { display: grid; grid-template-columns: 54px minmax(0,1fr); gap: 18px; padding: 24px 0; border-bottom: 1px solid var(--line-strong); }
.principles article > span { color: var(--cyan); font-weight: 900; font-size: 12px; letter-spacing: .12em; padding-top: 6px; }
.principles h3 { margin-bottom: 8px; font-size: 20px; }
.principles p { margin-bottom: 0; }

.contact { display: flex; align-items: end; justify-content: space-between; gap: 50px; }
.contact > div { max-width: 880px; }
.contact h2 { margin-bottom: 18px; }
.contact p { font-size: 17px; margin-bottom: 0; }
.footer { min-height: 90px; padding: 26px 0 34px; border-top: 1px solid var(--line); display: flex; align-items: flex-start; justify-content: space-between; gap: 32px; color: var(--muted); font-size: 12px; }

@media (max-width: 1040px) {
  .nav-links { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 112px; }
  .hero-note { max-width: 500px; }
  .problem-grid { grid-template-columns: 1fr 1fr; }
  .problem-grid > div:nth-child(2) { border-right: 0; }
  .problem-grid > div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .collab-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .feature { min-height: auto; }
  .feature-index { margin-bottom: 30px; }
  .solution-facts { grid-template-columns: 1fr; }
  .solution-facts > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .solution-facts > div:last-child { border-bottom: 0; }
  .construction-grid { grid-template-columns: 1fr; gap: 44px; }
  .construction-intro { position: static; }
}

@media (max-width: 700px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .section { padding: 78px 0; }
  .nav { min-height: 66px; }
  .button-small { display: none; }
  h1 { font-size: clamp(44px, 13vw, 62px); }
  h2 { font-size: clamp(34px, 10vw, 48px); }
  .hero { padding-top: 88px; gap: 44px; }
  .hero-copy { font-size: 18px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .problem-grid { grid-template-columns: 1fr; }
  .problem-grid > div { border-right: 0; border-left: 1px solid var(--line); border-top: 1px solid var(--line); }
  .problem-grid > div:first-child { border-top: 0; }
  .collab-card { grid-template-columns: 1fr; padding: 20px; min-height: auto; }
  .collab-visual { min-height: 200px; }
  .collab-visual img { height: 200px; }
  .solution-head { grid-template-columns: 1fr; padding: 24px 22px; }
  .solution-facts > div { padding: 24px 22px; }
  .contact { align-items: flex-start; flex-direction: column; }
  .footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}