:root {
  --orange: #d06d2b;
  --orange-dark: #a94f19;
  --ink: #171512;
  --muted: #68635d;
  --line: #ddd8cc;
  --paper: #fbfaf6;
  --warm: #f3efe6;
  --white: #ffffff;
  --radius: 28px;
  --shadow: 0 28px 80px rgba(76, 56, 38, 0.09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Source Sans Pro", "Segoe UI", system-ui, sans-serif;
  font-size: 18px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  padding: .7rem 1rem;
  background: var(--ink);
  color: white;
  border-radius: 999px;
}
.skip-link:focus { top: 1rem; }

.preview-note {
  padding: .45rem 1rem;
  color: #6d3b1e;
  background: #fbeadb;
  border-bottom: 1px solid #ecc8aa;
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-align: center;
  text-transform: uppercase;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(251, 250, 246, .9);
  border-bottom: 1px solid rgba(221, 216, 204, .75);
  backdrop-filter: blur(16px);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1320px, calc(100% - 3rem));
  min-height: 72px;
  margin: 0 auto;
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: .55rem;
  text-decoration: none;
}
.brand strong {
  font-size: 1.65rem;
  letter-spacing: -.08em;
}
.brand i {
  width: 7px;
  height: 7px;
  background: var(--orange);
  border-radius: 50%;
}
.brand span { color: var(--muted); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-links > a { font-size: .86rem; font-weight: 650; text-decoration: none; }
.nav-links > a:hover { color: var(--orange-dark); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .7rem;
  min-height: 50px;
  padding: .75rem 1.15rem;
  color: white;
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform .35s cubic-bezier(.32,.72,0,1), background .35s cubic-bezier(.32,.72,0,1);
}
.button:hover { background: var(--orange-dark); border-color: var(--orange-dark); transform: translateY(-2px); }
.button--small { min-height: 42px; padding: .55rem .9rem; font-size: .83rem; }
.button--light { color: var(--ink); background: var(--white); border-color: var(--white); }
.button--light:hover { color: white; }
.arrow { font-size: 1.25em; line-height: 1; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(420px, .84fr);
  align-items: center;
  min-height: calc(100dvh - 101px);
  overflow: hidden;
}
.hero-copy { padding: 5.5rem 3.5rem 5.5rem max(2rem, calc((100vw - 1320px) / 2)); }
.hero-visual { position: relative; align-self: stretch; min-height: 820px; background: #dceaf2; }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; object-position: 55% 50%; }
.hero-visual::after { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 48%, rgba(23,21,18,.55) 100%); content: ""; pointer-events: none; }
.vision-card {
  position: absolute;
  left: 1.25rem;
  bottom: 4.2rem;
  z-index: 1;
  width: min(370px, calc(100% - 2.5rem));
  padding: 1.5rem;
  color: white;
  background: rgba(23,21,18,.82);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 22px;
  backdrop-filter: blur(14px);
}
.vision-card span, .vision-card small { display: block; }
.vision-card span { margin-bottom: 1rem; color: #ef9d63; font-size: .68rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.vision-card strong { display: block; margin-bottom: .8rem; font-size: clamp(1.6rem, 2.7vw, 2.5rem); font-weight: 550; letter-spacing: -.04em; line-height: 1.02; }
.vision-card small { color: #d8d2ca; font-size: .72rem; }
.visual-label {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  z-index: 2;
  padding: .45rem .7rem;
  color: var(--ink);
  background: rgba(255,255,255,.88);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 999px;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .05em;
  backdrop-filter: blur(8px);
}
.eyebrow {
  display: block;
  margin: 0 0 1.25rem;
  color: var(--orange-dark);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 840px;
  margin-bottom: 1.5rem;
  font-size: clamp(3.35rem, 5.25vw, 6.5rem);
  font-weight: 650;
  letter-spacing: -.065em;
  line-height: .91;
  text-wrap: balance;
}
h1 em { color: var(--orange); font-style: normal; font-weight: 350; }
h2 {
  max-width: 860px;
  margin-bottom: 1.25rem;
  font-size: clamp(2.2rem, 4.5vw, 4.7rem);
  font-weight: 580;
  letter-spacing: -.055em;
  line-height: .98;
}
h3 { margin-bottom: .65rem; font-size: 1.25rem; line-height: 1.2; }
.lead { max-width: 790px; color: #504b45; font-size: clamp(1.02rem, 1.32vw, 1.24rem); }
.hero-benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; max-width: 850px; margin-top: 2rem; }
.hero-benefits > div { padding: 1rem; background: var(--white); border: 1px solid var(--line); border-radius: 16px; }
.hero-benefits span { display: block; margin-bottom: .7rem; color: var(--orange-dark); font-size: .62rem; font-weight: 800; letter-spacing: .1em; }
.hero-benefits strong { display: block; margin-bottom: .35rem; font-size: .88rem; line-height: 1.2; }
.hero-benefits p { margin: 0; color: var(--muted); font-size: .76rem; line-height: 1.4; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 2rem; }
.text-link { color: var(--ink); font-size: .9rem; font-weight: 750; text-underline-offset: 4px; }
.text-link:hover { color: var(--orange-dark); }
.hero-opportunity { max-width: 850px; margin-top: 1.5rem; padding: 1rem 1.2rem; background: #fbeadb; border-left: 3px solid var(--orange); border-radius: 0 14px 14px 0; }
.hero-opportunity span { display: block; margin-bottom: .25rem; color: #6d3b1e; font-size: .67rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.hero-opportunity p { margin: 0; color: #5d402e; font-size: .84rem; }
.evidence-line { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.5rem; }
.status {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .38rem .65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,.7);
  font-size: .72rem;
  font-weight: 750;
}
.status::before { width: 7px; height: 7px; background: #56705a; border-radius: 50%; content: ""; }
.status--validation::before { background: var(--orange); }
.status--goal::before { background: #9c968c; }

.section { padding: 8.5rem max(1.5rem, calc((100vw - 1320px) / 2)); }
.section--warm { background: var(--warm); }
.section--dark { color: white; background: var(--ink); }
.section-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: end; margin-bottom: 4rem; }
.section-intro p { max-width: 620px; margin-bottom: 0; color: var(--muted); }
.section--dark .section-intro p { color: #cbc5bd; }
.section--dark .eyebrow { color: #ef9d63; }

.problem-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 1.25rem; }
.problem-main, .card, .system-panel, .case-panel, .process-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.problem-main { padding: clamp(2rem, 4vw, 4.4rem); }
.problem-main blockquote { max-width: 760px; margin: 0; font-size: clamp(1.75rem, 3vw, 3rem); font-weight: 450; letter-spacing: -.035em; line-height: 1.13; }
.problem-side { display: grid; gap: 1.25rem; }
.card { padding: 2rem; box-shadow: none; }
.card .index { display: block; margin-bottom: 2rem; color: var(--orange-dark); font-size: .72rem; font-weight: 800; letter-spacing: .14em; }
.card p { margin-bottom: 0; color: var(--muted); }

.system-panel { padding: clamp(1.5rem, 4vw, 4rem); }
.system-grid { display: grid; grid-template-columns: 1fr 80px 1fr; align-items: stretch; gap: 1rem; }
.module { position: relative; min-height: 320px; padding: 2.2rem; overflow: hidden; background: #f7f5ef; border: 1px solid var(--line); border-radius: 22px; }
.module::after { position: absolute; right: -50px; bottom: -70px; width: 190px; height: 190px; background: var(--orange); border-radius: 50%; content: ""; opacity: .11; }
.module strong { display: block; margin-bottom: .45rem; font-size: clamp(2.1rem, 4vw, 4rem); letter-spacing: -.05em; line-height: 1; }
.module p { position: relative; z-index: 1; max-width: 42ch; color: var(--muted); }
.connector { display: flex; align-items: center; justify-content: center; color: var(--orange); font-size: 2.6rem; }
.system-result { display: flex; align-items: center; justify-content: space-between; gap: 2rem; margin-top: 1rem; padding: 1.5rem 2rem; color: white; background: var(--ink); border-radius: 20px; }
.system-result strong { font-size: 1.45rem; }
.system-result span { color: #cbc5bd; font-size: .88rem; }
.brain-architecture { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 1rem; padding: 2rem; background: #f7f5ef; border: 1px solid var(--line); border-radius: 20px; }
.brain-copy p { margin-bottom: 0; color: var(--muted); }
.brain-layers { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; align-content: center; }
.brain-layers span { display: flex; min-height: 80px; align-items: center; padding: 1rem; background: var(--white); border: 1px solid var(--line); border-radius: 14px; font-size: .86rem; font-weight: 750; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; counter-reset: step; }
.step { position: relative; min-height: 290px; padding: 2rem 1.6rem; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.13); border-radius: 24px; counter-increment: step; }
.step::before { display: block; margin-bottom: 5rem; color: #ef9d63; font-size: .8rem; font-weight: 800; letter-spacing: .12em; content: "0" counter(step); }
.step p { margin-bottom: 0; color: #c8c1b8; font-size: .92rem; }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.proof-card { padding: 2rem 1.5rem; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.13); border-radius: 22px; }
.proof-card > span { display: block; margin-bottom: 3.5rem; color: #ef9d63; font-size: .78rem; font-weight: 800; }
.proof-card p { margin-bottom: 0; color: #c8c1b8; font-size: .9rem; }
.gate-row { display: grid; grid-template-columns: .8fr 1.3fr .8fr; gap: 1px; margin-top: 1rem; overflow: hidden; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.15); border-radius: 18px; }
.gate-row div { padding: 1.4rem; background: #211f1c; }
.gate-row strong { display: block; margin-bottom: .35rem; color: #ef9d63; font-size: .76rem; letter-spacing: .08em; }
.gate-row span { color: #c8c1b8; font-size: .82rem; }
.phase-note { max-width: 900px; margin: 1.25rem 0 0; color: #a9a198; font-size: .82rem; }

.suitability { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.suitability .card { padding: 2.5rem; }
.list { display: grid; gap: .2rem; margin: 1.5rem 0 0; padding: 0; list-style: none; }
.list li { padding: .85rem 0 .85rem 1.6rem; border-top: 1px solid var(--line); }
.list li::before { float: left; margin-left: -1.6rem; color: var(--orange); content: "→"; }
.fair-note { margin-top: 1.25rem; padding: 1.2rem 1.4rem; background: #fbeadb; border-radius: 16px; color: #6a4025; font-size: .9rem; }

.case-panel { display: grid; grid-template-columns: .8fr 1.2fr; overflow: hidden; }
.case-meta { display: flex; flex-direction: column; justify-content: space-between; padding: 3rem; color: white; background: var(--orange-dark); }
.case-meta .eyebrow { color: #ffe2cc; }
.case-meta p { color: #ffe7d4; }
.case-facts { padding: 3rem; }
.case-facts dl { margin: 0; }
.case-facts div { display: grid; grid-template-columns: 180px 1fr; gap: 1rem; padding: 1.15rem 0; border-bottom: 1px solid var(--line); }
.case-facts dt { color: var(--muted); font-size: .78rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.case-facts dd { margin: 0; }

.evidence-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
.evidence-card { padding: 2rem; background: var(--white); border: 1px solid var(--line); border-radius: 24px; }
.evidence-card .status { margin-bottom: 2rem; }
.evidence-card p { margin-bottom: 0; color: var(--muted); }

.process-panel { padding: 1rem 3rem; }
.process-row { display: grid; grid-template-columns: 75px 1fr 1.2fr; gap: 2rem; align-items: baseline; padding: 2rem 0; border-bottom: 1px solid var(--line); }
.process-row:last-child { border-bottom: 0; }
.process-row > span { color: var(--orange-dark); font-size: .78rem; font-weight: 800; }
.process-row strong { font-size: 1.3rem; }
.process-row p { margin: 0; color: var(--muted); }

.faq { max-width: 980px; margin: 0 auto; }
.faq details { padding: 1.5rem 0; border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; justify-content: space-between; gap: 2rem; cursor: pointer; font-size: 1.15rem; font-weight: 700; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { color: var(--orange); content: "+"; }
.faq details[open] summary::after { content: "−"; }
.faq details p { max-width: 760px; margin: 1rem 0 0; color: var(--muted); }

.cta {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 3rem;
  align-items: end;
  margin: 0 max(1.5rem, calc((100vw - 1320px) / 2)) 6rem;
  padding: clamp(2.5rem, 6vw, 5rem);
  color: white;
  background: var(--orange-dark);
  border-radius: 36px;
}
.cta h2 { margin-bottom: 1rem; }
.cta p { max-width: 650px; margin-bottom: 0; color: #ffe6d4; }
.cta-actions { display: flex; justify-content: flex-end; }

.footer { padding: 3rem max(1.5rem, calc((100vw - 1320px) / 2)); border-top: 1px solid var(--line); }
.footer-inner { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; }
.footer p { margin: .55rem 0 0; color: var(--muted); font-size: .8rem; }
.footer-links { display: flex; gap: 1.25rem; font-size: .82rem; font-weight: 700; }

.legal { width: min(860px, calc(100% - 3rem)); margin: 0 auto; padding: 6rem 0 8rem; }
.legal h1 { margin-bottom: 2.5rem; font-size: clamp(3rem, 7vw, 5.5rem); }
.legal h2 { margin-top: 3rem; font-size: 1.55rem; letter-spacing: -.02em; }
.legal h3 { margin-top: 2rem; }
.legal p, .legal li { color: #4f4a44; }
.legal-note { padding: 1.25rem 1.4rem; background: #fbeadb; border: 1px solid #ecc8aa; border-radius: 16px; color: #6a4025 !important; }

@media (max-width: 980px) {
  body { font-size: 17px; }
  .nav-links > a:not(.button) { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { padding: 5rem 1.5rem 4rem; }
  .hero-visual { min-height: 620px; }
  .section { padding: 6.5rem 1.5rem; }
  .section-intro, .problem-grid, .suitability, .case-panel, .cta, .brain-architecture { grid-template-columns: 1fr; gap: 2rem; }
  .section-intro { align-items: start; }
  .system-grid { grid-template-columns: 1fr; }
  .connector { min-height: 54px; transform: rotate(90deg); }
  .steps { grid-template-columns: 1fr 1fr; }
  .evidence-grid { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: 1fr 1fr; }
  .cta-actions { justify-content: flex-start; }
}

@media (max-width: 620px) {
  .preview-note { font-size: .63rem; }
  .nav { width: calc(100% - 2rem); min-height: 64px; }
  .brand span { display: none; }
  .hero { min-height: 0; }
  .hero-copy { padding-top: 4rem; }
  .hero-visual { min-height: 440px; }
  .hero-benefits { grid-template-columns: 1fr; }
  .hero-benefits > div { padding: .9rem 1rem; }
  .hero-benefits span { margin-bottom: .3rem; }
  .vision-card { bottom: 4.4rem; }
  h1 { font-size: clamp(2.65rem, 12.5vw, 4rem); hyphens: none; overflow-wrap: normal; }
  h2 { overflow-wrap: anywhere; }
  .section { padding-top: 5rem; padding-bottom: 5rem; }
  .section-intro { margin-bottom: 2.5rem; }
  .steps { grid-template-columns: 1fr; }
  .proof-grid, .gate-row { grid-template-columns: 1fr; }
  .brain-layers { grid-template-columns: 1fr; }
  .step { min-height: 220px; }
  .step::before { margin-bottom: 3rem; }
  .system-result { align-items: flex-start; flex-direction: column; }
  .case-meta, .case-facts { padding: 2rem 1.5rem; }
  .case-facts div { grid-template-columns: 1fr; gap: .25rem; }
  .process-panel { padding: .5rem 1.5rem; }
  .process-row { grid-template-columns: 50px 1fr; gap: .7rem; }
  .process-row p { grid-column: 2; }
  .cta { margin-bottom: 3rem; padding: 2.2rem 1.5rem; border-radius: 24px; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

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