:root {
  --bg: #050814;
  --bg-soft: #090f20;
  --surface: #0d1530;
  --surface-2: #121d3b;
  --surface-3: #172448;
  --line: rgba(148, 163, 184, 0.16);
  --line-strong: rgba(139, 92, 246, 0.34);
  --text: #f4f7fb;
  --text-soft: #b9c3d6;
  --text-muted: #7f8da8;
  --purple: #7c3aed;
  --purple-2: #9f67ff;
  --blue: #3b82f6;
  --green: #3ddc97;
  --amber: #f5a524;
  --red: #fb7185;
  --max: 1180px;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 82% 8%, rgba(124, 58, 237, 0.14), transparent 28%),
    radial-gradient(circle at 14% 20%, rgba(59, 130, 246, 0.1), transparent 24%),
    var(--bg);
  color: var(--text);
  font-family: "Manrope", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10000;
  opacity: 0.018;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: inherit; }
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }
::selection { background: rgba(124, 58, 237, 0.45); color: white; }

.container { width: min(var(--max), calc(100% - 44px)); margin: 0 auto; }
.section { padding: 104px 0; position: relative; }
.section-tight { padding: 76px 0; }
.section-muted { background: rgba(9, 15, 32, 0.72); border-block: 1px solid var(--line); }
.section-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(124, 58, 237, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 58, 237, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, transparent, black 18%, black 82%, transparent);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 16px;
  color: #c8b5ff;
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--purple-2), var(--blue));
}

h1, h2, h3, h4 { margin: 0; line-height: 1.08; letter-spacing: -0.035em; }
h1 { font-size: clamp(3rem, 5.6vw, 5rem); font-weight: 850; }
h2 { font-size: clamp(2.15rem, 4.5vw, 4rem); font-weight: 820; }
h3 { font-size: clamp(1.25rem, 2vw, 1.7rem); font-weight: 760; }
h4 { font-size: 1rem; font-weight: 750; letter-spacing: -0.01em; }
p { margin: 0; color: var(--text-soft); }
.lead { font-size: clamp(1.03rem, 1.5vw, 1.22rem); line-height: 1.78; max-width: 760px; }
.section-copy { max-width: 760px; margin-top: 22px; font-size: 1.04rem; }
.gradient-text {
  background: linear-gradient(110deg, #ffffff 5%, #bda7ff 46%, #61a9ff 88%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Header */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 76px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.site-nav.scrolled {
  background: rgba(5, 8, 20, 0.9);
  border-color: var(--line);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 45px rgba(0,0,0,.18);
}
.nav-inner { width: min(var(--max), calc(100% - 44px)); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { text-decoration: none; font-size: 1.2rem; font-weight: 850; letter-spacing: .12em; }
.brand span { color: #b693ff; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; padding: 0; margin: 0; }
.nav-links a { text-decoration: none; color: var(--text-soft); font-size: .9rem; font-weight: 650; transition: color .2s ease; }
.nav-links a:hover, .nav-links a.active { color: white; }
.nav-cta { padding: 10px 18px; border-radius: 999px; background: white; color: #0a0d18 !important; }
.nav-cta:hover { background: #ded7ff; }
.mobile-menu { display: none; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); color: white; cursor: pointer; }

/* Buttons */
.actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 760;
  font-size: .93rem;
  border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(135deg, var(--purple), #5b55e8); color: white; box-shadow: 0 14px 36px rgba(124, 58, 237, .28); }
.btn-primary:hover { box-shadow: 0 20px 48px rgba(124, 58, 237, .38); }
.btn-secondary { background: rgba(255,255,255,.035); border-color: var(--line); color: white; }
.btn-secondary:hover { border-color: rgba(159,103,255,.5); background: rgba(124,58,237,.08); }
.btn-text { color: #c6b5ff; text-decoration: none; font-weight: 750; }

/* Hero */
.hero { min-height: 100vh; padding: 150px 0 90px; display: flex; align-items: center; position: relative; overflow: hidden; }
.hero::after {
  content: "";
  position: absolute;
  width: 760px;
  height: 760px;
  border-radius: 50%;
  right: -280px;
  top: -210px;
  background: radial-gradient(circle, rgba(124,58,237,.2), transparent 66%);
  filter: blur(2px);
}
.hero-layout { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr .95fr; gap: 72px; align-items: center; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  margin-bottom: 24px;
  border-radius: 999px;
  border: 1px solid rgba(159,103,255,.28);
  background: rgba(124,58,237,.08);
  color: #d6c7ff;
  font-size: .78rem;
  font-weight: 720;
}
.hero-badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 16px rgba(61,220,151,.7); }
.hero p { margin: 28px 0 36px; max-width: 690px; font-size: clamp(1.04rem, 1.55vw, 1.2rem); }
.hero-proof { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 12px; }
.proof-chip { border: 1px solid var(--line); background: rgba(255,255,255,.025); border-radius: 999px; padding: 8px 12px; color: var(--text-muted); font-size: .76rem; }

.hero-system { position: relative; min-height: 560px; }
.orbit { position: absolute; border: 1px solid rgba(124,58,237,.18); border-radius: 50%; inset: 40px; animation: spin 32s linear infinite; }
.orbit:nth-child(2) { inset: 92px; animation-direction: reverse; animation-duration: 24s; }
.orbit::before { content: ""; position: absolute; width: 10px; height: 10px; border-radius: 50%; background: #9f67ff; top: 10%; left: 19%; box-shadow: 0 0 22px #7c3aed; }
@keyframes spin { to { transform: rotate(360deg); } }
.system-card {
  position: absolute;
  background: linear-gradient(160deg, rgba(18,29,59,.96), rgba(9,15,32,.95));
  border: 1px solid rgba(159,103,255,.24);
  box-shadow: var(--shadow);
  border-radius: 18px;
  padding: 22px;
  backdrop-filter: blur(18px);
}
.system-card small { display: block; color: #ad9ecb; font-size: .68rem; text-transform: uppercase; letter-spacing: .13em; margin-bottom: 9px; font-weight: 700; }
.system-card strong { font-size: 1rem; }
.system-card p { font-size: .82rem; margin: 8px 0 0; line-height: 1.55; }
.system-core { inset: 148px 72px; display: flex; flex-direction: column; justify-content: center; text-align: center; border-color: rgba(159,103,255,.42); }
.system-core .core-title { font-size: 1.45rem; font-weight: 820; margin-bottom: 12px; }
.system-core .core-split { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; }
.core-unit { border: 1px solid var(--line); background: rgba(255,255,255,.025); border-radius: 12px; padding: 13px 10px; font-size: .75rem; color: var(--text-soft); }
.system-model { left: 0; top: 58px; width: 210px; }
.system-evidence { right: 0; top: 48px; width: 220px; }
.system-output { right: 10px; bottom: 45px; width: 230px; }
.system-governance { left: 18px; bottom: 36px; width: 220px; }
.flow-line { position: absolute; height: 1px; background: linear-gradient(90deg, transparent, rgba(159,103,255,.65), transparent); }
.flow-line.one { left: 170px; right: 170px; top: 130px; }
.flow-line.two { left: 180px; right: 160px; bottom: 116px; }

/* Cards and grids */
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.card { background: linear-gradient(155deg, rgba(18,29,59,.92), rgba(9,15,32,.84)); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.card:hover { transform: translateY(-4px); border-color: rgba(159,103,255,.38); box-shadow: 0 24px 55px rgba(0,0,0,.22); }
.card-kicker { color: #ac96f4; font-size: .69rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; margin-bottom: 14px; }
.card h3 { margin-bottom: 13px; }
.card p { font-size: .92rem; }
.card-list { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 10px; }
.card-list li { display: grid; grid-template-columns: 18px 1fr; gap: 8px; color: var(--text-soft); font-size: .86rem; }
.card-list li::before { content: "✓"; color: var(--green); font-weight: 800; }

.number-card { padding-top: 68px; position: relative; overflow: hidden; }
.number-card::before { content: attr(data-number); position: absolute; top: 20px; left: 28px; color: rgba(159,103,255,.2); font-size: 2.8rem; font-weight: 900; line-height: 1; }

.problem-route { display: flex; align-items: stretch; gap: 10px; margin-top: 46px; }
.route-step { flex: 1; min-width: 0; border: 1px solid var(--line); border-radius: 14px; padding: 20px; background: rgba(255,255,255,.025); }
.route-step strong { display: block; font-size: .9rem; margin-bottom: 7px; }
.route-step span { color: var(--text-muted); font-size: .78rem; line-height: 1.45; }
.route-arrow { align-self: center; color: #8065c9; font-size: 1.4rem; flex: 0 0 auto; }

/* Architecture */
.architecture { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 46px; }
.arch-card { border-radius: var(--radius); border: 1px solid var(--line); background: rgba(13,21,48,.82); overflow: hidden; }
.arch-head { padding: 26px 28px 22px; border-bottom: 1px solid var(--line); }
.arch-head .tag { display: inline-flex; color: #cdbfff; font-size: .7rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 10px; }
.arch-body { padding: 8px 28px 26px; }
.arch-row { padding: 18px 0; display: grid; grid-template-columns: 40px 1fr; gap: 14px; align-items: start; border-bottom: 1px solid var(--line); }
.arch-row:last-child { border-bottom: 0; }
.arch-icon { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: rgba(124,58,237,.12); color: #c7b4ff; font-size: .7rem; font-weight: 850; }
.arch-row strong { display: block; margin-bottom: 4px; font-size: .93rem; }
.arch-row p { font-size: .82rem; }
.boundary {
  margin-top: 24px;
  border: 1px dashed rgba(159,103,255,.5);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #d8ceff;
  background: rgba(124,58,237,.07);
  font-size: .86rem;
  font-weight: 750;
}

/* Comparisons */
.comparison { display: grid; grid-template-columns: 1fr 52px 1fr; gap: 18px; align-items: stretch; margin-top: 44px; }
.comparison-panel { border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; background: rgba(13,21,48,.72); }
.comparison-panel.good { border-color: rgba(61,220,151,.28); background: linear-gradient(150deg, rgba(61,220,151,.06), rgba(13,21,48,.78)); }
.comparison-panel h3 { margin-bottom: 22px; }
.comparison-items { display: grid; gap: 13px; }
.comparison-item { border: 1px solid var(--line); border-radius: 12px; padding: 15px; color: var(--text-soft); font-size: .87rem; background: rgba(255,255,255,.02); }
.vs { align-self: center; justify-self: center; width: 52px; height: 52px; display: grid; place-items: center; border-radius: 50%; background: #111b37; border: 1px solid var(--line-strong); font-weight: 900; }

/* Patterns */
.pattern-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 42px; }
.pattern-card { position: relative; padding: 27px; border-radius: 16px; border: 1px solid var(--line); background: rgba(13,21,48,.72); }
.pattern-card::after { content: ""; position: absolute; width: 46px; height: 3px; left: 27px; bottom: 0; background: linear-gradient(90deg, var(--purple), var(--blue)); border-radius: 99px; }
.pattern-card .pattern-id { color: #9f8bd6; font-size: .68rem; font-weight: 850; letter-spacing: .12em; margin-bottom: 12px; }
.pattern-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.pattern-card p { font-size: .86rem; }

/* Validation applications */
.application-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 42px; }
.application { border-radius: 16px; border: 1px solid var(--line); background: rgba(13,21,48,.78); overflow: hidden; }
.application-top { padding: 24px 24px 18px; min-height: 158px; }
.application .status { display: inline-flex; align-items: center; gap: 7px; font-size: .68rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; margin-bottom: 16px; color: #d8ceff; }
.application .status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--amber); }
.application.proven .status::before { background: var(--green); }
.application h3 { font-size: 1.2rem; margin-bottom: 7px; }
.application p { font-size: .84rem; }
.application-foot { padding: 15px 24px; background: rgba(255,255,255,.025); border-top: 1px solid var(--line); color: var(--text-muted); font-size: .76rem; }

/* Traction */
.traction-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; margin-top: 44px; }
.timeline { display: grid; gap: 0; }
.timeline-item { position: relative; display: grid; grid-template-columns: 42px 1fr; gap: 16px; padding-bottom: 26px; }
.timeline-item::before { content: ""; position: absolute; left: 20px; top: 34px; bottom: 0; width: 1px; background: var(--line); }
.timeline-item:last-child::before { display: none; }
.timeline-dot { width: 42px; height: 42px; border-radius: 14px; background: rgba(124,58,237,.12); border: 1px solid rgba(159,103,255,.28); display: grid; place-items: center; color: #cbbaff; font-weight: 850; }
.timeline-item h4 { margin: 2px 0 7px; }
.timeline-item p { font-size: .86rem; }
.evidence-stack { display: grid; gap: 14px; }
.evidence-card { border: 1px solid var(--line); border-radius: 15px; padding: 20px; background: rgba(255,255,255,.025); }
.evidence-card strong { display: block; margin-bottom: 7px; }
.evidence-card p { font-size: .82rem; }
.evidence-card a { display: inline-flex; margin-top: 12px; color: #c5b5ff; font-size: .8rem; font-weight: 750; text-decoration: none; }
.disclaimer { margin-top: 18px; padding: 15px 17px; border-radius: 12px; background: rgba(245,165,36,.06); border: 1px solid rgba(245,165,36,.18); color: #b6a985; font-size: .75rem; }

/* Business model */
.revenue-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 42px; }
.revenue-step { border-radius: 15px; padding: 24px; border: 1px solid var(--line); background: rgba(13,21,48,.78); }
.revenue-step span { color: #a990ed; font-size: .68rem; font-weight: 850; letter-spacing: .12em; }
.revenue-step h3 { font-size: 1.05rem; margin: 11px 0 9px; }
.revenue-step p { font-size: .82rem; }

/* CTA */
.cta-box { padding: clamp(34px, 6vw, 68px); border: 1px solid rgba(159,103,255,.26); border-radius: 26px; background:
  radial-gradient(circle at 90% 10%, rgba(124,58,237,.2), transparent 35%),
  linear-gradient(145deg, rgba(18,29,59,.92), rgba(9,15,32,.92));
  display: grid; grid-template-columns: 1fr auto; gap: 34px; align-items: center; overflow: hidden; }
.cta-box p { margin-top: 16px; max-width: 680px; }

/* Page hero */
.page-hero { padding: 160px 0 86px; position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.page-hero::after { content: ""; position: absolute; width: 600px; height: 600px; border-radius: 50%; right: -180px; top: -250px; background: radial-gradient(circle, rgba(124,58,237,.18), transparent 66%); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero p { margin-top: 24px; max-width: 820px; font-size: 1.08rem; }
.page-actions { margin-top: 30px; }

/* Tables and tags */
.tag-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.tag { display: inline-flex; padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; font-size: .73rem; color: var(--text-muted); background: rgba(255,255,255,.025); }
.matrix { width: 100%; border-collapse: collapse; margin-top: 36px; overflow: hidden; border-radius: 16px; border: 1px solid var(--line); }
.matrix th, .matrix td { text-align: left; padding: 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
.matrix th { font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: #baa8ef; background: rgba(124,58,237,.08); }
.matrix td { color: var(--text-soft); font-size: .86rem; background: rgba(13,21,48,.64); }
.matrix tr:last-child td { border-bottom: 0; }

/* Forms */
.contact-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 34px; margin-top: 42px; }
.contact-card { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(13,21,48,.76); }
.contact-method { padding: 18px 0; border-bottom: 1px solid var(--line); }
.contact-method:last-child { border-bottom: 0; }
.contact-method strong { display: block; margin-bottom: 5px; }
.contact-method a { color: #c7b5ff; text-decoration: none; font-size: .88rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
label { color: var(--text-soft); font-size: .82rem; font-weight: 700; }
input, textarea, select { width: 100%; border: 1px solid var(--line); border-radius: 11px; background: #0a1126; color: white; padding: 14px 15px; outline: none; }
input:focus, textarea:focus, select:focus { border-color: rgba(159,103,255,.58); box-shadow: 0 0 0 4px rgba(124,58,237,.08); }
textarea { min-height: 150px; resize: vertical; }
.form-note { font-size: .74rem; color: var(--text-muted); margin-top: 12px; }

/* FAQ */
.faq { display: grid; gap: 12px; margin-top: 38px; }
.faq-item { border: 1px solid var(--line); border-radius: 14px; background: rgba(13,21,48,.68); overflow: hidden; }
.faq-question { width: 100%; padding: 20px 22px; display: flex; justify-content: space-between; gap: 20px; background: transparent; border: 0; color: white; text-align: left; cursor: pointer; font-weight: 750; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-answer p { padding: 0 22px 22px; font-size: .88rem; }
.faq-item.open .faq-answer { max-height: 260px; }
.faq-icon { color: #a88ff1; font-size: 1.2rem; transition: transform .2s ease; }
.faq-item.open .faq-icon { transform: rotate(45deg); }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 70px 0 28px; background: #040711; }
.footer-main { display: grid; grid-template-columns: 1.2fr .65fr .65fr .8fr; gap: 38px; }
.footer-brand { font-weight: 850; letter-spacing: .12em; margin-bottom: 15px; }
.footer-copy { font-size: .84rem; max-width: 380px; }
.footer-col h4 { margin-bottom: 17px; font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: #bda8f4; }
.footer-col a { display: block; margin-bottom: 10px; color: var(--text-muted); text-decoration: none; font-size: .84rem; }
.footer-col a:hover { color: white; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--line); color: #67758f; font-size: .74rem; }
.wa-float { position: fixed; right: 22px; bottom: 22px; z-index: 999; width: 54px; height: 54px; display: grid; place-items: center; border-radius: 50%; background: #25d366; color: white; text-decoration: none; font-weight: 900; box-shadow: 0 16px 38px rgba(37,211,102,.28); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 1040px) {
  .hero-layout, .traction-layout, .contact-layout { grid-template-columns: 1fr; }
  .hero-system { min-height: 520px; max-width: 680px; width: 100%; margin: 0 auto; }
  .grid-4, .application-grid, .revenue-flow { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .pattern-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .cta-box { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  .nav-links { position: fixed; top: 76px; left: 18px; right: 18px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px; border: 1px solid var(--line); border-radius: 16px; background: rgba(8,13,29,.98); box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 13px 14px; border-radius: 10px; }
  .nav-cta { text-align: center; margin-top: 6px; }
  .mobile-menu { display: block; }
  .hero { padding-top: 125px; }
  .architecture, .grid-2 { grid-template-columns: 1fr; }
  .comparison { grid-template-columns: 1fr; }
  .vs { margin: -4px auto; }
  .problem-route { display: grid; grid-template-columns: 1fr 1fr; }
  .route-arrow { display: none; }
  .system-model { left: 0; }
  .system-evidence { right: 0; }
}

@media (max-width: 640px) {
  .container, .nav-inner { width: min(100% - 28px, var(--max)); }
  .section { padding: 78px 0; }
  h1 { font-size: clamp(2.5rem, 13vw, 3.35rem); }
  h2 { font-size: clamp(2rem, 10vw, 3rem); }
  .hero-system { min-height: auto; display: grid; gap: 12px; margin-top: 18px; }
  .orbit, .flow-line { display: none; }
  .system-card { position: static; width: auto; }
  .system-core { order: -1; }
  .system-core .core-split { grid-template-columns: 1fr; }
  .grid-3, .grid-4, .pattern-grid, .application-grid, .revenue-flow, .form-grid, .problem-route { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .matrix { display: block; overflow-x: auto; white-space: nowrap; }
  .hero-proof { display: grid; }
  .proof-chip { border-radius: 10px; }
  .actions .btn { width: 100%; }
}

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