:root {
  --ink: oklch(18% 0.012 115);
  --paper: oklch(91% 0.035 81);
  --paper-soft: oklch(96% 0.026 86);
  --paper-warm: oklch(84% 0.055 76);
  --steel: oklch(42% 0.025 126);
  --line: oklch(18% 0.012 115 / 0.18);
  --line-strong: oklch(18% 0.012 115 / 0.44);
  --amber: oklch(66% 0.16 61);
  --amber-soft: oklch(87% 0.096 74);
  --green: oklch(45% 0.09 151);
  --red: oklch(48% 0.14 35);
  --blueprint: oklch(30% 0.07 226);
  --shadow: 0 22px 80px oklch(18% 0.012 115 / 0.16);
  --display: Constantia, "Palatino Linotype", Georgia, serif;
  --body: Candara, "Trebuchet MS", Aptos, sans-serif;
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 48px;
  --space-4xl: 64px;
  --space-5xl: 96px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 8%, oklch(66% 0.16 61 / 0.20), transparent 32rem),
    radial-gradient(circle at 86% 24%, oklch(45% 0.09 151 / 0.12), transparent 28rem),
    linear-gradient(135deg, oklch(30% 0.07 226 / 0.08), transparent 38%),
    var(--paper);
  font-family: var(--body);
  line-height: 1.5;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
  opacity: 0.22;
  background-image:
    linear-gradient(oklch(18% 0.012 115 / 0.08) 1px, transparent 1px),
    linear-gradient(90deg, oklch(18% 0.012 115 / 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, oklch(20% 0.01 115), transparent 72%);
}

a {
  color: inherit;
}

.site-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: oklch(91% 0.035 81 / 0.86);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border: 2px solid var(--ink);
  background:
    linear-gradient(135deg, var(--amber), var(--paper-soft));
  box-shadow: 5px 5px 0 var(--ink);
  transform: rotate(-4deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--steel);
  font-size: 0.94rem;
}

.nav-links a {
  text-decoration: none;
}

.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  text-decoration: none;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button {
  background: var(--ink);
  color: var(--paper-soft);
  box-shadow: 5px 5px 0 var(--amber);
}

.button-secondary {
  background: oklch(96% 0.026 86 / 0.58);
  color: var(--ink);
}

.lang-switch {
  padding: 7px 10px;
  border: 1px solid var(--line-strong);
  background: oklch(96% 0.026 86 / 0.62);
  font-weight: 700;
}

.language-note {
  margin-top: 14px;
  color: var(--steel);
  font-size: 0.95rem;
}

.button:hover,
.button-secondary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--amber);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(320px, 0.78fr);
  gap: 54px;
  align-items: center;
  padding: 88px 0 72px;
}

.eyebrow,
.kicker {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--blueprint);
  font-size: 0.78rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: -0.055em;
  line-height: 0.94;
}

h1 {
  margin-top: 18px;
  max-width: 820px;
  font-family: var(--display);
  font-size: clamp(3.8rem, 10vw, 8.8rem);
  font-weight: 700;
}

h2 {
  font-family: var(--display);
  font-size: clamp(2.8rem, 5.8vw, 5.8rem);
  font-weight: 700;
}

h3 {
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

.lead {
  max-width: 680px;
  margin: 28px 0 0;
  font-size: clamp(1.1rem, 2vw, 1.38rem);
  color: var(--steel);
}

.hero-actions,
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.compact-actions {
  margin-top: 24px;
}

.command-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.command-strip code,
.code-card code {
  font-family: var(--mono);
}

.command-strip code {
  padding: 10px 12px;
  background: oklch(18% 0.012 115 / 0.90);
  color: var(--paper-soft);
}

.control-card {
  position: relative;
  padding: 22px;
  border: 1px solid var(--line-strong);
  background: oklch(96% 0.026 86 / 0.76);
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
}

.control-card::before {
  content: "MERGE GATE";
  position: absolute;
  top: -16px;
  right: 28px;
  padding: 4px 10px;
  background: var(--amber);
  border: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.verdict-row {
  display: grid;
  grid-template-columns: 0.52fr 1fr;
  gap: 14px;
  align-items: stretch;
}

.verdict {
  padding: 20px;
  min-height: 140px;
  color: var(--paper-soft);
  background: var(--red);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.verdict strong {
  font-size: 3.3rem;
  line-height: 0.9;
  letter-spacing: -0.08em;
}

.signal-list {
  display: grid;
  gap: 10px;
}

.signal {
  padding: 14px;
  border: 1px solid var(--line);
  background: oklch(91% 0.035 81 / 0.74);
}

.signal span,
.stat span,
.policy-meta {
  display: block;
  margin-bottom: 5px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--steel);
}

.proof-tape {
  margin-top: 18px;
  padding: 18px;
  border: 1px dashed var(--line-strong);
  background: oklch(66% 0.16 61 / 0.15);
}

.artifact-strip {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: var(--space-lg);
  align-items: start;
  margin-top: calc(var(--space-4xl) * -0.35);
  margin-bottom: var(--space-3xl);
}

.readable-first {
  grid-template-columns: minmax(320px, 0.72fr) minmax(0, 1fr);
}

.artifact-strip figure,
.screenshot-card,
.wide-screenshot {
  margin: 0;
}

.artifact-strip img,
.screenshot-card img,
.wide-screenshot img {
  display: block;
  width: 100%;
  border: 1px solid var(--line-strong);
  background: var(--paper-soft);
  box-shadow: 8px 8px 0 oklch(18% 0.012 115 / 0.18);
}

.artifact-strip figcaption,
.screenshot-card figcaption,
.wide-screenshot figcaption {
  max-width: 70ch;
  margin-top: var(--space-md);
  color: var(--steel);
  font-size: 0.9rem;
}

.decision-card,
.briefing-card {
  border: 1px solid var(--line-strong);
  background: oklch(96% 0.026 86 / 0.74);
  box-shadow: 8px 8px 0 oklch(18% 0.012 115 / 0.14);
}

.decision-card {
  padding: 24px;
}

.decision-card h2 {
  margin-top: 12px;
  font-size: clamp(2.3rem, 4.4vw, 4.3rem);
}

.decision-card p,
.briefing-card p {
  color: var(--steel);
}

.decision-verdict {
  display: inline-flex;
  margin-top: 18px;
  padding: 8px 14px;
  border: 1px solid var(--ink);
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.decision-verdict.hold {
  color: var(--paper-soft);
  background: var(--red);
}

.decision-actions {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.decision-actions span {
  padding: 12px;
  border: 1px dashed var(--line-strong);
  background: oklch(66% 0.16 61 / 0.12);
}

.section {
  padding: 76px 0;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.74fr) minmax(260px, 0.38fr);
  gap: 36px;
  align-items: end;
  margin-bottom: 36px;
}

.section-head p {
  margin: 0;
  color: var(--steel);
}

.grid-3,
.grid-2 {
  display: grid;
  gap: 18px;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel,
.legal-card,
.price-card,
.faq-card {
  border: 1px solid var(--line);
  background: oklch(96% 0.026 86 / 0.68);
  padding: 24px;
}

.panel strong,
.legal-card strong {
  display: block;
  margin-bottom: 12px;
}

.panel p,
.legal-card p,
.price-card p,
.faq-card p {
  color: var(--steel);
}

.blueprint {
  background:
    linear-gradient(oklch(96% 0.026 86 / 0.05) 1px, transparent 1px),
    linear-gradient(90deg, oklch(96% 0.026 86 / 0.05) 1px, transparent 1px),
    var(--blueprint);
  background-size: 34px 34px;
  color: var(--paper-soft);
}

.blueprint .section-head p,
.blueprint .panel p,
.blueprint .signal span {
  color: oklch(96% 0.026 86 / 0.72);
}

.blueprint .panel {
  background: oklch(96% 0.026 86 / 0.08);
  border-color: oklch(96% 0.026 86 / 0.24);
}

.flow {
  counter-reset: flow;
}

.flow .panel {
  position: relative;
  padding-top: 56px;
}

.flow .panel::before {
  counter-increment: flow;
  content: "0" counter(flow);
  position: absolute;
  top: 18px;
  left: 22px;
  font-family: var(--mono);
  color: var(--amber);
}

.price-card {
  position: relative;
  overflow: hidden;
}

.price-card.featured {
  border-color: var(--ink);
  box-shadow: 8px 8px 0 var(--amber);
}

.price {
  margin: 20px 0 8px;
  font-size: 3.8rem;
  letter-spacing: -0.07em;
}

.price small {
  font-size: 1rem;
  color: var(--steel);
  letter-spacing: 0;
}

.check-list {
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
}

.check-list li {
  padding: 10px 0 10px 30px;
  border-top: 1px solid var(--line);
  position: relative;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 2px;
  width: 12px;
  height: 12px;
  background: var(--green);
  clip-path: polygon(0 55%, 35% 100%, 100% 0, 82% 0, 34% 68%, 14% 42%);
}

.code-card {
  padding: 20px;
  background: oklch(17% 0.01 145);
  color: var(--paper-soft);
  overflow-x: auto;
}

.code-card pre {
  margin: 0;
}

.demo-hero h1 {
  font-size: clamp(3.8rem, 8vw, 7.4rem);
}

.demo-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.demo-step {
  position: relative;
  min-height: 290px;
  padding: 22px;
  border: 1px solid var(--line);
  background: oklch(96% 0.026 86 / 0.68);
}

.demo-number {
  display: inline-flex;
  margin-bottom: 32px;
  font-family: var(--mono);
  color: var(--amber);
}

.mini-receipt {
  margin-top: 18px;
  padding: 12px;
  border: 1px dashed var(--line-strong);
  background: oklch(66% 0.16 61 / 0.16);
  font-family: var(--mono);
  font-size: 0.82rem;
}

.mini-receipt.danger {
  background: oklch(48% 0.14 35 / 0.14);
}

.mini-receipt.success {
  background: oklch(45% 0.09 151 / 0.14);
}

.demo-output {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.62fr);
  gap: 18px;
}

.briefing-card {
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(280px, 1fr);
  gap: 18px;
  padding: 24px;
}

.briefing-main h3 {
  margin-top: 18px;
  font-family: var(--display);
  font-size: clamp(2.2rem, 4vw, 4.5rem);
}

.briefing-label {
  font-family: var(--mono);
  color: var(--blueprint);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.briefing-stack {
  display: grid;
  gap: 10px;
}

.receipt-card {
  border: 1px solid oklch(96% 0.026 86 / 0.24);
  background: oklch(17% 0.01 145 / 0.52);
}

.receipt-card {
  padding: 24px;
}

.receipt-card h3 {
  margin-top: 18px;
}

.screenshots {
  align-items: stretch;
}

.wide-screenshot {
  margin-top: var(--space-lg);
}

.legal-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 1fr);
  gap: 36px;
  padding: 70px 0;
}

.legal-nav {
  position: sticky;
  top: 98px;
  align-self: start;
  display: grid;
  gap: 10px;
}

.legal-nav a {
  color: var(--steel);
  text-decoration: none;
}

.legal-content {
  display: grid;
  gap: 18px;
}

.legal-card h2 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  margin-bottom: 20px;
}

.footer {
  padding: 48px 0;
  border-top: 1px solid var(--line);
  color: var(--steel);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer a {
  color: var(--steel);
  margin-right: 16px;
}

@keyframes rise-in {
  from {
    transform: translateY(18px);
  }
  to {
    transform: translateY(0);
  }
}

.hero > *,
.section {
  animation: rise-in 680ms ease both;
}

@media (max-width: 900px) {
  .hero,
  .section-head,
  .grid-3,
  .grid-2,
  .artifact-strip,
  .briefing-card,
  .demo-board,
  .demo-output,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 0;
  }

  .nav-links {
    width: 100%;
    flex-wrap: wrap;
  }

  .control-card {
    transform: none;
  }
}

@media (max-width: 560px) {
  .site-shell {
    width: min(100% - 22px, 1180px);
  }

  h1 {
    font-size: 4rem;
  }

  .verdict-row {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 54px;
  }
}