@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wdth,wght@12..96,75..100,400..800&family=IBM+Plex+Mono:wght@500;600&family=Manrope:wght@400;500;600;700&display=swap');

:root {
  --ink: #11100f;
  --ink-raised: #1a1917;
  --ink-soft: #22211f;
  --paper: #f0ede5;
  --paper-dim: #d8d4cb;
  --ash: #aaa69d;
  --ash-dark: #76726b;
  --violet: #8b5cf6;
  --violet-dark: #7044d3;
  --line: rgba(240, 237, 229, 0.14);
  --line-strong: rgba(240, 237, 229, 0.25);
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
  --display: "Bricolage Grotesque", "Arial Narrow", sans-serif;
  --body: "Manrope", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --page: min(1240px, calc(100vw - 48px));
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 72% 7%, rgba(139, 92, 246, 0.08), transparent 25rem),
    var(--ink);
  color: var(--paper);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 100;
  transform: translateY(-150%);
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font-weight: 700;
}
.skip-link:focus { transform: translateY(0); }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: rgba(17, 16, 15, 0.9);
  backdrop-filter: blur(18px);
}
.nav-shell {
  width: var(--page);
  min-height: 72px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
}
.brand img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--line-strong);
}
.brand span { display: grid; line-height: 1.1; }
.brand strong { font-family: var(--display); font-size: 15px; letter-spacing: -0.01em; }
.brand small { margin-top: 5px; color: var(--ash); font-family: var(--mono); font-size: 9px; text-transform: uppercase; letter-spacing: 0.12em; }
.site-header nav { display: flex; gap: 28px; align-items: center; }
.site-header nav a { color: var(--ash); font-size: 14px; font-weight: 600; transition: color 180ms ease; }
.site-header nav a:hover { color: var(--paper); }
.nav-action {
  justify-self: end;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  transition: border-color 180ms ease, background 180ms ease;
}
.nav-action:hover { border-color: var(--paper-dim); background: rgba(240, 237, 229, 0.06); }

.hero {
  position: relative;
  isolation: isolate;
  width: var(--page);
  min-height: calc(100dvh - 73px);
  margin: 0 auto;
  padding: 72px 0 76px;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(430px, 0.88fr);
  gap: clamp(48px, 7vw, 104px);
  align-items: center;
}
.hero > :not(.hero-media) { position: relative; z-index: 1; }
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background: #11100f url("assets/video/obsidian-brain-poster.jpg") center / cover no-repeat;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(17, 16, 15, 0.96) 0%, rgba(17, 16, 15, 0.77) 38%, rgba(17, 16, 15, 0.46) 72%, rgba(17, 16, 15, 0.78) 100%),
    linear-gradient(180deg, rgba(17, 16, 15, 0.7), rgba(17, 16, 15, 0.18) 45%, rgba(17, 16, 15, 0.84));
}
.hero-video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  opacity: 0.72;
  filter: saturate(1.16) contrast(1.04);
}
.product-label, .section-label, .module-path, .paper-path, .document-path {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 11px;
  font-weight: 600;
}
.product-label { margin-bottom: 24px; color: var(--paper-dim); }
.product-label span { margin: 0 8px; color: var(--violet); }
.hero h1 {
  margin-bottom: 26px;
  font-family: var(--display);
  font-size: clamp(50px, 5.6vw, 80px);
  font-variation-settings: "wdth" 88;
  font-weight: 680;
  line-height: 0.98;
  letter-spacing: -0.055em;
}
.hero h1 span { display: block; }
.hero h1 span:last-child { color: var(--paper-dim); }
.hero-summary {
  max-width: 620px;
  margin-bottom: 0;
  color: var(--ash);
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.65;
}
.hero-proof-strip {
  width: fit-content;
  max-width: 100%;
  margin-top: 22px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border: 1px solid rgba(167, 121, 255, 0.24);
  border-radius: 12px;
  background: rgba(17, 16, 15, 0.74);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(10px);
}
.hero-proof-strip span {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 12px;
  border-radius: 8px;
  color: var(--paper-dim);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.045em;
  text-transform: uppercase;
  white-space: nowrap;
}
.hero-proof-strip span:last-child { background: rgba(138, 92, 246, 0.15); color: var(--paper); }
.hero-proof-strip b { color: #c9adff; font-size: 13px; }
.hero-actions { margin-top: 26px; display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 10px;
  padding: 0 22px;
  font-family: var(--body);
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}
.button-primary {
  background: var(--violet);
  color: #ffffff;
  box-shadow: 0 14px 32px rgba(74, 42, 142, 0.22);
}
.button-primary:hover { background: #9769f9; transform: translateY(-2px); }
.button-primary:active { transform: translateY(1px) scale(0.99); }
.button-secondary {
  border: 1px solid var(--line-strong);
  background: rgba(240, 237, 229, 0.055);
  color: var(--paper);
}
.button-secondary:hover { border-color: var(--paper-dim); background: rgba(240, 237, 229, 0.1); transform: translateY(-2px); }
.button-secondary:active { transform: translateY(1px) scale(0.99); }
.text-link { min-height: 44px; display: inline-flex; align-items: center; gap: 10px; color: var(--paper-dim); font-weight: 700; }
.text-link span { color: var(--violet); transition: transform 180ms ease; }
.text-link:hover span { transform: translateY(3px); }

.product-window {
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  overflow: hidden;
  background: var(--ink-raised);
  box-shadow: var(--shadow);
}
.product-window-relocated {
  width: min(820px, 100%);
  margin: 44px auto 42px;
}
.product-window-relocated .document-preview { min-height: 360px; }
.window-bar {
  min-height: 54px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
}
.window-bar > div { display: flex; align-items: center; gap: 10px; }
.window-mark { width: 8px; height: 8px; border-radius: 50%; background: var(--violet); }
.file-count { color: var(--ash); font-family: var(--mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; }
.preview-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
}
.preview-tabs button {
  min-height: 48px;
  padding: 8px 10px;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--ash);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease;
}
.preview-tabs button:last-child { border-right: 0; }
.preview-tabs button[aria-selected="true"] { color: var(--paper); background: rgba(139, 92, 246, 0.1); box-shadow: inset 0 -2px var(--violet); }
.preview-tabs button:hover { color: var(--paper); }
.document-preview {
  min-height: 490px;
  margin: 18px;
  padding: 30px;
  border-radius: 8px;
  background: var(--paper);
  color: #25231f;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.22);
}
.document-preview.is-changing { opacity: 0; transform: translateY(5px); }
.document-preview { transition: opacity 150ms ease, transform 150ms ease; }
.document-path, .paper-path { color: #716b62; }
.document-preview h2 {
  margin: 30px 0 8px;
  font-family: var(--display);
  font-size: 30px;
  line-height: 1.05;
  letter-spacing: -0.04em;
}
.document-intro { color: #625e56; }
.document-body { margin-top: 28px; display: grid; gap: 0; }
.document-body p {
  margin: 0;
  padding: 12px 0;
  display: grid;
  grid-template-columns: 36px 1fr;
  border-bottom: 1px solid rgba(37, 35, 31, 0.12);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.45;
}
.document-body p span { color: var(--violet-dark); font-family: var(--mono); font-size: 10px; }
.document-body blockquote {
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--violet);
  background: rgba(139, 92, 246, 0.08);
  font-size: 13px;
}
.document-body pre { margin: 8px 0 0; white-space: pre-wrap; font-family: var(--mono); font-size: 12px; line-height: 1.7; }
.document-body .check-row { grid-template-columns: 24px 1fr; }
.document-body .check-row span { color: #6f6a62; }

.fact-strip {
  width: var(--page);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.fact-strip div { min-height: 116px; padding: 26px 28px; display: flex; flex-direction: column; justify-content: center; border-right: 1px solid var(--line); }
.fact-strip div:last-child { border-right: 0; }
.fact-strip strong { font-family: var(--display); font-size: 34px; line-height: 1; letter-spacing: -0.04em; }
.fact-strip span { margin-top: 8px; color: var(--ash); font-size: 12px; }

.section { width: var(--page); margin: 0 auto; padding: 132px 0; }
.section-label { margin-bottom: 18px; color: var(--violet); }
.section h2 {
  margin-bottom: 22px;
  font-family: var(--display);
  font-size: clamp(38px, 4.3vw, 62px);
  font-variation-settings: "wdth" 90;
  font-weight: 650;
  line-height: 1.03;
  letter-spacing: -0.045em;
}

.reframe {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.68fr);
  gap: clamp(56px, 10vw, 150px);
  align-items: start;
}
.reframe-body { padding-top: 42px; }
.reframe-body > p { color: var(--ash); font-size: 18px; line-height: 1.75; }
.honesty-note { margin-top: 34px; padding-top: 22px; display: grid; gap: 5px; border-top: 1px solid var(--line-strong); }
.honesty-note strong { font-family: var(--display); font-size: 19px; }
.honesty-note span { color: var(--ash); font-size: 13px; }

.pathways { border-top: 1px solid var(--line); }
.pathways-heading { max-width: 790px; }
.pathways-heading > p:last-child, .engine-copy > p { max-width: 680px; color: var(--ash); font-size: 18px; }
.pathway-grid {
  margin-top: 58px;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 20px;
  align-items: stretch;
}
.pathway {
  padding: clamp(30px, 4.2vw, 54px);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--ink-raised);
}
.pathway-engine {
  position: relative;
  background: linear-gradient(145deg, rgba(139, 92, 246, 0.14), rgba(26, 25, 23, 0.96) 56%);
  box-shadow: var(--shadow);
}
.pathway-engine::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.72), rgba(240, 237, 229, 0.05) 55%);
}
.pathway-topline { display: flex; justify-content: space-between; gap: 20px; align-items: start; }
.pathway-topline span, .offer-level { color: var(--violet); font-family: var(--mono); font-size: 10px; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; }
.pathway-topline strong { font-family: var(--display); font-size: 30px; letter-spacing: -0.04em; }
.pathway h3 { margin: 44px 0 14px; font-family: var(--display); font-size: clamp(30px, 3.1vw, 44px); line-height: 1; letter-spacing: -0.04em; }
.pathway-promise { color: var(--ash); max-width: 560px; }
.pathway ul, .offer-row-copy ul { margin: 24px 0 34px; padding: 0; list-style: none; }
.pathway li, .offer-row-copy li { padding: 9px 0 9px 24px; position: relative; color: var(--paper-dim); font-size: 13px; }
.pathway li::before, .offer-row-copy li::before { content: "✓"; position: absolute; left: 0; color: var(--violet); font-family: var(--mono); }
.pathway .button { width: 100%; margin-top: auto; }
.pathway > small { margin-top: 16px; color: var(--ash-dark); font-size: 10px; line-height: 1.5; }
.pathway-note { max-width: 820px; margin: 32px 0 0; color: var(--ash); }
.pathway-note strong { color: var(--paper); }

.engine-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(390px, 0.72fr);
  gap: clamp(50px, 8vw, 110px);
  align-items: start;
  border-top: 1px solid var(--line);
}
.engine-list { margin: 50px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line-strong); }
.engine-list li { min-height: 76px; display: grid; grid-template-columns: 38px 155px 1fr; gap: 16px; align-items: center; border-bottom: 1px solid var(--line); }
.engine-list li > span { color: var(--violet); font-family: var(--mono); font-size: 10px; }
.engine-list strong { font-family: var(--display); font-size: 17px; }
.engine-list small { color: var(--ash); font-size: 12px; }
.engine-output {
  position: sticky;
  top: 104px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--paper);
  color: #25231f;
  box-shadow: var(--shadow);
}
.engine-output-head { padding: 24px; display: flex; gap: 14px; align-items: center; border-bottom: 1px solid rgba(37, 35, 31, 0.13); }
.engine-output-head img { border-radius: 50%; }
.engine-output-head div { display: grid; }
.engine-output-head small { color: #716b62; font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; }
.engine-output-head strong { margin-top: 3px; font-family: var(--display); font-size: 19px; }
.engine-file-stack { padding: 10px 24px 4px; }
.engine-file-stack article { min-height: 92px; display: grid; grid-template-columns: 34px 1fr; gap: 10px; align-items: center; border-bottom: 1px solid rgba(37, 35, 31, 0.12); }
.engine-file-stack article > span { color: var(--violet-dark); font-family: var(--mono); font-size: 10px; }
.engine-file-stack article div { display: grid; gap: 4px; }
.engine-file-stack strong { font-family: var(--display); font-size: 16px; }
.engine-file-stack small { color: #716b62; font-size: 10px; line-height: 1.45; }
.engine-output > p { margin: 0; padding: 20px 24px; background: #e2dbf0; color: #4f4659; font-size: 11px; }

.product-map { border-top: 1px solid var(--line); }
.map-heading { max-width: 740px; }
.map-heading > p:last-child, .proof-heading > p:last-child { color: var(--ash); max-width: 650px; font-size: 18px; }
.map-layout {
  margin-top: 64px;
  display: grid;
  grid-template-columns: 1fr 0.76fr;
  gap: clamp(40px, 8vw, 104px);
  align-items: start;
}
.module-list { border-top: 1px solid var(--line-strong); }
.module-list article { padding: 28px 0 30px; border-bottom: 1px solid var(--line); }
.module-path { display: block; margin-bottom: 13px; color: var(--violet); }
.module-list h3 { margin-bottom: 9px; font-family: var(--display); font-size: 25px; line-height: 1.15; letter-spacing: -0.025em; }
.module-list p { max-width: 660px; margin-bottom: 0; color: var(--ash); }
.folder-sheet {
  position: sticky;
  top: 104px;
  padding: 28px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--ink-raised);
  box-shadow: var(--shadow);
}
.folder-sheet-top { display: flex; align-items: center; gap: 15px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.folder-sheet-top img { border-radius: 50%; border: 1px solid var(--line-strong); }
.folder-sheet-top div { display: grid; }
.folder-sheet-top small { color: var(--violet); font-family: var(--mono); font-size: 9px; letter-spacing: 0.12em; }
.folder-sheet-top strong { margin-top: 4px; font-family: var(--display); font-size: 19px; }
.folder-tree { margin: 20px 0 0; padding: 0; list-style: none; }
.folder-tree li { min-height: 45px; display: grid; grid-template-columns: 34px 1fr; align-items: center; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 600; }
.folder-tree li span { color: var(--ash-dark); font-family: var(--mono); font-size: 9px; }
.sheet-foot { margin: 22px 0 0; color: var(--ash); font-size: 12px; }

.proof { border-top: 1px solid var(--line); }
.proof-heading { max-width: 720px; }
.proof-grid {
  margin-top: 58px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  grid-template-areas: "tall dark" "tall accent";
  gap: 20px;
}
.paper { padding: 32px; border-radius: 8px; box-shadow: var(--shadow); }
.paper h3 { margin: 34px 0 15px; font-family: var(--display); font-size: 30px; letter-spacing: -0.035em; }
.paper-tall { grid-area: tall; min-height: 580px; background: var(--paper); color: #25231f; transform: rotate(-0.4deg); }
.paper-dark { grid-area: dark; min-height: 280px; border: 1px solid var(--line-strong); background: var(--ink-raised); }
.paper-accent { grid-area: accent; min-height: 280px; background: #dcd2f5; color: #292231; transform: rotate(0.35deg); }
.check-list { margin: 22px 0 0; padding: 0; list-style: none; }
.check-list li { padding: 11px 0 11px 28px; position: relative; border-bottom: 1px solid rgba(37, 35, 31, 0.12); font-weight: 600; font-size: 14px; }
.check-list li::before { content: "□"; position: absolute; left: 0; color: var(--violet-dark); font-family: var(--mono); }
.paper pre { margin: 22px 0 0; overflow: auto; white-space: pre-wrap; color: var(--paper-dim); font-family: var(--mono); font-size: 12px; line-height: 1.8; }
.paper-accent blockquote { margin: 18px 0 0; font-family: var(--display); font-size: 21px; font-weight: 600; line-height: 1.25; letter-spacing: -0.02em; }
.paper-note { margin: 22px 0 0; color: #5a5065; font-size: 12px; }

.method { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(56px, 9vw, 128px); border-top: 1px solid var(--line); }
.method-heading { max-width: 480px; }
.method-flow { margin: 0; padding: 0; list-style: none; counter-reset: flow; border-top: 1px solid var(--line-strong); }
.method-flow li { counter-increment: flow; min-height: 118px; padding: 25px 0; display: grid; grid-template-columns: 1fr 1.45fr; gap: 28px; align-items: start; border-bottom: 1px solid var(--line); }
.method-flow strong { font-family: var(--display); font-size: 25px; line-height: 1.2; }
.method-flow strong::before { content: "0" counter(flow); display: block; margin-bottom: 9px; color: var(--violet); font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; }
.method-flow span { color: var(--ash); }

.offer {
  display: grid;
  grid-template-columns: 1.22fr 0.78fr;
  gap: 0;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--ink-raised);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.offer-main { padding: clamp(40px, 6vw, 76px); }
.offer-main h2 { margin-bottom: 14px; }
.offer-summary { max-width: 560px; color: var(--ash); font-size: 18px; }
.included-columns { margin-top: 38px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.included-columns ul { margin: 0; padding: 0; list-style: none; }
.included-columns li { padding: 10px 0 10px 24px; position: relative; color: var(--paper-dim); font-size: 13px; }
.included-columns li::before { content: "✓"; position: absolute; left: 0; color: var(--violet); font-family: var(--mono); }
.checkout-panel { padding: clamp(38px, 5vw, 60px); display: flex; flex-direction: column; justify-content: center; border-left: 1px solid var(--line-strong); background: #211d29; }
.price-row { display: flex; align-items: flex-start; line-height: 1; }
.price-row span { margin-top: 11px; color: var(--violet); font-family: var(--display); font-size: 30px; }
.price-row strong { font-family: var(--display); font-size: 92px; letter-spacing: -0.07em; }
.checkout-panel > p { color: var(--ash); }
.checkout-button { width: 100%; margin-top: 18px; }
.checkout-facts { margin-top: 24px; display: grid; gap: 10px; }
.checkout-facts span { padding-left: 22px; position: relative; color: var(--paper-dim); font-size: 12px; }
.checkout-facts span::before { content: "✓"; position: absolute; left: 0; color: var(--violet); font-family: var(--mono); }
.checkout-status { margin: 22px 0 0; font-size: 10px; line-height: 1.5; }

.offers { border-top: 1px solid var(--line); }
.offers-heading { max-width: 790px; }
.offers-heading > p:last-child { max-width: 680px; color: var(--ash); font-size: 17px; }
.offer-stack { margin-top: 58px; display: grid; gap: 20px; }
.offer-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.38fr);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--ink-raised);
}
.offer-row-featured { border-color: rgba(139, 92, 246, 0.65); box-shadow: var(--shadow); }
.offer-row-copy { padding: clamp(34px, 5vw, 62px); }
.offer-row-copy h3 { margin: 22px 0 12px; font-family: var(--display); font-size: clamp(32px, 3.5vw, 50px); line-height: 1; letter-spacing: -0.045em; }
.offer-row-copy > p { max-width: 680px; color: var(--ash); }
.offer-row-copy ul { margin-bottom: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; }
.offer-row-buy { padding: 38px; display: flex; flex-direction: column; justify-content: center; border-left: 1px solid var(--line-strong); background: #211d29; }
.offer-row:not(.offer-row-featured) .offer-row-buy { background: #1d1b19; }
.offer-row-buy .price-row strong { font-size: 76px; }
.offer-row-buy > p { color: var(--ash); }
.offer-row-buy .button { width: 100%; margin-top: 12px; }
.offer-boundary { max-width: 850px; margin: 26px 0 0; color: var(--ash-dark); font-size: 11px; }

.faq { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: clamp(56px, 9vw, 128px); }
.faq-heading { max-width: 430px; }
.faq-list { border-top: 1px solid var(--line-strong); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; list-style: none; font-family: var(--display); font-size: 19px; font-weight: 600; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--violet); font-family: var(--mono); font-size: 19px; }
.faq details[open] summary::after { content: "−"; }
.faq details p { max-width: 690px; padding: 0 36px 25px 0; margin-bottom: 0; color: var(--ash); }

.site-footer {
  width: var(--page);
  margin: 0 auto;
  padding: 42px 0 34px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 30px;
  align-items: center;
  border-top: 1px solid var(--line);
}
.footer-brand { display: flex; align-items: center; gap: 13px; }
.footer-brand img { border-radius: 50%; border: 1px solid var(--line-strong); }
.footer-brand div { display: grid; }
.footer-brand strong { font-family: var(--display); }
.footer-brand span { color: var(--ash); font-size: 11px; }
.footer-links { display: flex; gap: 24px; color: var(--ash); font-size: 12px; }
.footer-links a:hover { color: var(--paper); }
.footer-note { grid-column: 1 / -1; margin: 4px 0 0; color: var(--ash-dark); font-size: 10px; }

.hero-enter { animation: hero-in 620ms cubic-bezier(.16, 1, .3, 1) both; }
.hero-enter-delay { animation-delay: 90ms; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 560ms ease, transform 560ms cubic-bezier(.16, 1, .3, 1); }
.reveal.is-visible { opacity: 1; transform: none; }
@keyframes hero-in { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

@media (max-width: 1040px) {
  .hero { grid-template-columns: 1fr 430px; gap: 40px; }
  .hero h1 { font-size: clamp(48px, 5.5vw, 64px); }
  .document-preview { min-height: 455px; padding: 24px; }
  .section { padding: 108px 0; }
  .map-layout { grid-template-columns: 1fr 0.7fr; gap: 42px; }
}

@media (max-width: 820px) {
  :root { --page: min(100% - 32px, 680px); }
  .nav-shell { grid-template-columns: 1fr auto; gap: 16px; }
  .site-header nav { display: none; }
  .nav-action { font-size: 11px; padding: 0 12px; }
  .brand small { display: none; }
  .hero { min-height: auto; padding: 62px 0 72px; grid-template-columns: 1fr; gap: 54px; }
  .hero h1 { font-size: clamp(46px, 12vw, 68px); }
  .hero h1 span { display: inline; }
  .hero h1 span + span::before { content: " "; }
  .hero-summary { max-width: 540px; }
  .product-window { max-width: 580px; width: 100%; margin: 0 auto; }
  .fact-strip { grid-template-columns: repeat(2, 1fr); }
  .fact-strip div:nth-child(2) { border-right: 0; }
  .fact-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section { padding: 94px 0; }
  .reframe, .map-layout, .method, .faq, .engine-showcase { grid-template-columns: 1fr; gap: 44px; }
  .pathway-grid { grid-template-columns: 1fr; }
  .engine-output { position: relative; top: auto; max-width: 620px; }
  .offer-row { grid-template-columns: 1fr; }
  .offer-row-buy { border-left: 0; border-top: 1px solid var(--line-strong); }
  .reframe-body { padding-top: 0; }
  .folder-sheet { position: relative; top: auto; }
  .proof-grid { grid-template-columns: 1fr; grid-template-areas: "tall" "dark" "accent"; }
  .paper-tall { min-height: auto; transform: none; }
  .paper-accent { transform: none; }
  .offer { grid-template-columns: 1fr; }
  .checkout-panel { border-left: 0; border-top: 1px solid var(--line-strong); }
  .site-footer { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; }
}

@media (max-width: 520px) {
  .brand strong { font-size: 13px; }
  .brand img { width: 38px; height: 38px; }
  .nav-action { display: none; }
  .nav-shell { grid-template-columns: 1fr; }
  .hero { padding-top: 50px; }
  .hero h1 { font-size: clamp(38px, 11.5vw, 50px); line-height: 1.01; }
  .hero h1 span { display: block; }
  .hero h1 span + span::before { content: none; }
  .hero-video { object-position: 68% center; opacity: 0.58; }
  .hero-media::after {
    background: linear-gradient(180deg, rgba(17, 16, 15, 0.74), rgba(17, 16, 15, 0.56) 50%, rgba(17, 16, 15, 0.9));
  }
  .hero-proof-strip { width: 100%; flex-direction: column; align-items: stretch; }
  .hero-proof-strip span { width: 100%; justify-content: space-between; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 13px; }
  .button, .text-link { width: 100%; justify-content: center; }
  .preview-tabs { grid-template-columns: 1fr; }
  .preview-tabs button { border-right: 0; border-bottom: 1px solid var(--line); }
  .document-preview { min-height: 500px; margin: 12px; padding: 21px; }
  .document-preview h2 { font-size: 25px; }
  .fact-strip div { min-height: 96px; padding: 22px 18px; }
  .fact-strip strong { font-size: 28px; }
  .section { padding: 78px 0; }
  .section h2 { font-size: clamp(36px, 11vw, 48px); }
  .included-columns { grid-template-columns: 1fr; gap: 0; }
  .engine-list li { grid-template-columns: 30px 1fr; padding: 16px 0; }
  .engine-list small { grid-column: 2; }
  .offer-row-copy ul { grid-template-columns: 1fr; }
  .pathway, .offer-row-copy, .offer-row-buy { padding: 30px 22px; }
  .offer-main, .checkout-panel { padding: 34px 24px; }
  .method-flow li { grid-template-columns: 1fr; gap: 10px; }
  .paper { padding: 24px; }
  .paper h3 { font-size: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .hero-video { display: none; }
}