:root {
  --paper: #f5f2ec;
  --paper-strong: #efe8dd;
  --ink: #2c2a26;
  --ink-soft: #4e483f;
  --muted: #8a7e6e;
  --line: rgba(44, 42, 38, 0.12);
  --shadow: 0 24px 80px rgba(35, 29, 24, 0.08);
  --radius: 24px;
  --radius-sm: 16px;
  --radius-xs: 12px;
  --font-editorial: "Cormorant Garamond", Georgia, serif;
  --font-ui: "Inter", system-ui, sans-serif;
  --voice: #7a6e4e;
  --pacing: #6e7fa0;
  --repetition: #b0603a;
  --style: #8b6b9e;
  --continuity: #4a8b7a;
  --interiority: #a06060;
  --accent: #2c2a26;
  --max-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top, rgba(255,255,255,0.6), transparent 28%),
    linear-gradient(180deg, #f7f3ec 0%, #f2ece3 100%);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

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

.topbar {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 18px;
  margin: 20px 0 28px;
  background: rgba(247, 243, 236, 0.86);
  border: 1px solid rgba(44, 42, 38, 0.08);
  backdrop-filter: blur(16px);
  border-radius: 999px;
  box-shadow: 0 12px 40px rgba(42, 36, 28, 0.06);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(44, 42, 38, 0.12);
  background: linear-gradient(180deg, rgba(255,255,255,0.8), rgba(239,232,221,0.7));
  font-size: 0.88rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-copy strong {
  font-size: 0.98rem;
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.84rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.nav-cta {
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid rgba(44, 42, 38, 0.12);
  background: rgba(255, 255, 255, 0.65);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  border: 0;
  background: transparent;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 999px;
}

.section {
  padding: 88px 0;
}

.section-tight {
  padding: 14px 0 36px;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.95fr;
  gap: 48px;
  align-items: center;
  min-height: calc(100vh - 220px);
}

.hero-copy h1,
.section-intro h2,
.audience-copy h2,
.cta-card h2,
.architecture-section h2 {
  margin: 0;
  font-family: var(--font-editorial);
  font-size: clamp(3rem, 6vw, 6rem);
  line-height: 0.92;
  letter-spacing: -0.02em;
}

.section-intro h2,
.audience-copy h2,
.cta-card h2,
.architecture-section h2 {
  font-size: clamp(2.4rem, 4.4vw, 4.4rem);
  line-height: 0.96;
}

.hero-lede,
.section-intro p,
.story-card p,
.feature-card p,
.trust-card p,
.audience-copy p,
.architecture-section p,
.faq-item p,
.cta-card p,
.demo-output p,
.demo-context,
.contrast-closing {
  font-size: 1.06rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  font-weight: 700;
}

.eyebrow::before {
  content: "";
  width: 42px;
  height: 1px;
  background: rgba(44, 42, 38, 0.18);
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--ink);
  color: var(--paper);
  box-shadow: 0 16px 32px rgba(44, 42, 38, 0.16);
}

.button-secondary {
  background: rgba(255,255,255,0.65);
  color: var(--ink);
  border-color: rgba(44, 42, 38, 0.12);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding: 0;
  margin: 32px 0 0;
  list-style: none;
  color: var(--ink-soft);
}

.hero-points li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.55);
  border: 1px solid rgba(44, 42, 38, 0.08);
}

.card,
.manuscript-preview,
.story-card,
.feature-card,
.trust-card,
.metric-card,
.faq-item,
.cta-card,
.audience-panel {
  background: rgba(255, 252, 247, 0.82);
  border: 1px solid rgba(44, 42, 38, 0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.manuscript-preview {
  position: relative;
  overflow: hidden;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.7), rgba(248,244,236,0.95)),
    var(--paper);
}

.preview-topline {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.preview-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--muted);
}

.preview-page {
  margin-top: 20px;
  padding: 28px 22px 20px;
  border-radius: 22px;
  background: rgba(245, 242, 236, 0.86);
  border: 1px solid rgba(44, 42, 38, 0.06);
  font-family: var(--font-editorial);
  font-size: 1.5rem;
  line-height: 1.56;
}

.preview-page p {
  margin: 0 0 18px;
  text-indent: 1.25em;
}

.preview-page p:first-child {
  text-indent: 0;
}

.inline-mark {
  border: 0;
  padding: 0;
  background: transparent;
  border-bottom: 1px solid currentColor;
  cursor: pointer;
  font: inherit;
  color: inherit;
}

.inline-mark.voice {
  color: var(--voice);
}

.inline-mark.pacing {
  color: var(--pacing);
}

.inline-mark.active-mark {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.12em;
}

.preview-panel {
  margin-top: 20px;
  padding: 22px;
  border-radius: 22px;
  background: rgba(255,255,255,0.78);
  border-top: 3px solid var(--voice);
}

.preview-panel.is-pacing {
  border-top-color: var(--pacing);
}

.panel-label,
.status-pill,
.output-badge {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink);
  background: rgba(44, 42, 38, 0.06);
}

.preview-panel h2,
.demo-output h3,
.audience-panel h3,
.feature-card h3,
.trust-card h3,
.story-card h3,
.architecture-card strong,
.faq-item summary,
.cta-card h2,
.demo-reader blockquote,
.metric-card strong {
  margin: 14px 0 0;
  font-family: var(--font-editorial);
}

.preview-panel h2,
.demo-output h3,
.audience-panel h3 {
  font-size: clamp(1.8rem, 2vw, 2.4rem);
  line-height: 1.02;
}

.panel-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.mini-action {
  border: 1px solid rgba(44, 42, 38, 0.1);
  background: transparent;
  color: var(--ink-soft);
  padding: 10px 12px;
  border-radius: 999px;
}

.mini-action.selected {
  background: var(--ink);
  color: var(--paper);
}

.signal-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.signal-item {
  padding: 18px 20px;
  border-top: 1px solid rgba(44, 42, 38, 0.12);
  border-bottom: 1px solid rgba(44, 42, 38, 0.12);
}

.signal-item strong,
.signal-item span {
  display: block;
}

.signal-item span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.94rem;
}

.story-grid,
.features-section,
.trust-section,
.metrics-section,
.faq-section {
  display: grid;
  gap: 34px;
}

.section-intro {
  max-width: 850px;
}

.section-intro.narrow {
  max-width: 720px;
}

.story-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.story-card,
.feature-card,
.trust-card,
.metric-card,
.cta-card,
.audience-panel,
.demo-reader,
.demo-output,
.architecture-card {
  padding: 28px;
}

.story-number {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.demo-grid,
.architecture-layout,
.audience-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  align-items: start;
}

.demo-status,
.output-topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.demo-microcopy,
.stack-label {
  color: var(--muted);
  font-size: 0.92rem;
}

.demo-quote {
  margin: 22px 0 12px;
  padding: 0;
  font-size: clamp(2rem, 3vw, 2.9rem);
  line-height: 1.02;
}

.decision-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.decision-button {
  border: 1px solid rgba(44, 42, 38, 0.1);
  background: rgba(255,255,255,0.65);
  padding: 12px 16px;
  border-radius: 999px;
  cursor: pointer;
}

.decision-button.is-active {
  background: var(--ink);
  color: var(--paper);
}

.output-list,
.audience-list,
.contrast-list {
  margin: 20px 0 0;
  padding-left: 20px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.output-list li + li,
.audience-list li + li,
.contrast-list li + li {
  margin-top: 10px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(44, 42, 38, 0.06);
  font-size: 1rem;
}

.audience-panel {
  position: sticky;
  top: 110px;
}

.trust-grid,
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.stack-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(44, 42, 38, 0.08);
}

.stack-row:last-child {
  border-bottom: 0;
}

.code-card {
  background: #1f1d1a;
  color: #f5f2ec;
}

.code-card pre {
  margin: 0 0 18px;
  overflow-x: auto;
}

.code-card code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.95rem;
  line-height: 1.7;
}

.metrics-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-card {
  min-height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metric-card strong {
  font-size: 1.8rem;
  line-height: 1.02;
}

.metric-card span {
  color: var(--muted);
  line-height: 1.6;
}

.faq-list {
  display: grid;
  gap: 16px;
}

.faq-item {
  padding: 0;
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 24px 28px;
  font-size: 1.7rem;
  line-height: 1.04;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin: 0;
  padding: 0 28px 24px;
}

.cta-card {
  text-align: center;
  padding: 56px 36px;
}

.centered {
  justify-content: center;
}

.signup-form {
  max-width: 440px;
  margin: 28px auto 0;
}

.signup-row {
  display: flex;
  gap: 10px;
}

.signup-input {
  flex: 1;
  min-height: 54px;
  padding: 0 18px;
  border: 1px solid rgba(44, 42, 38, 0.15);
  border-radius: 999px;
  font-family: var(--font-ui);
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink);
}

.signup-input:focus {
  outline: none;
  border-color: rgba(44, 42, 38, 0.35);
  background: rgba(255, 255, 255, 0.9);
}

.signup-input::placeholder {
  color: var(--muted);
}

.signup-submit {
  white-space: nowrap;
  cursor: pointer;
}

.signup-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.signup-status {
  margin-top: 14px;
  font-size: 0.95rem;
  color: var(--ink-soft);
  min-height: 1.5em;
}

.signup-status.error {
  color: #b04040;
}

.signup-status.success {
  color: #4a8b7a;
}

.signup-fine {
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--muted);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 0 0 40px;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer strong,
.site-footer span {
  display: block;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero,
  .story-cards,
  .feature-grid,
  .trust-grid,
  .metrics-grid,
  .demo-grid,
  .architecture-layout,
  .audience-layout,
  .signal-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .audience-panel {
    position: static;
  }
}

@media (max-width: 820px) {
  .site-shell {
    width: min(calc(100% - 20px), var(--max-width));
  }

  .topbar {
    border-radius: 28px;
    padding: 16px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    inset: 96px 10px auto;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 22px;
    border-radius: 24px;
    background: rgba(247, 243, 236, 0.98);
    border: 1px solid rgba(44, 42, 38, 0.08);
    box-shadow: var(--shadow);
  }

  body.nav-open .site-nav {
    display: flex;
  }

  .hero,
  .story-cards,
  .feature-grid,
  .trust-grid,
  .metrics-grid,
  .demo-grid,
  .architecture-layout,
  .audience-layout,
  .signal-bar {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 72px 0;
  }

  .hero {
    min-height: auto;
    gap: 34px;
  }

  .hero-copy h1,
  .section-intro h2,
  .audience-copy h2,
  .cta-card h2,
  .architecture-section h2 {
    font-size: clamp(2.5rem, 11vw, 4.2rem);
  }

  .preview-page {
    font-size: 1.26rem;
  }

  .faq-item summary {
    font-size: 1.45rem;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button,
  .reveal,
  .decision-button,
  .mini-action {
    transition: none;
  }
}