:root {
  --paper: #f6f0e4;
  --paper-strong: #ece2d0;
  --surface: rgba(255, 251, 245, 0.88);
  --surface-strong: rgba(255, 251, 245, 0.96);
  --ink: #161514;
  --ink-soft: #3d3a34;
  --muted: #6e675c;
  --line: rgba(22, 21, 20, 0.12);
  --line-strong: rgba(22, 21, 20, 0.22);
  --accent: #0e5c49;
  --accent-strong: #084737;
  --signal: #ab4f1a;
  --shadow: 0 20px 60px rgba(42, 29, 16, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --sans: "Avenir Next", "Segoe UI", sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  --mono: "SFMono-Regular", "Menlo", "Consolas", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--sans);
  background:
    radial-gradient(circle at top left, rgba(171, 79, 26, 0.12), transparent 26%),
    radial-gradient(circle at 85% 18%, rgba(14, 92, 73, 0.14), transparent 24%),
    linear-gradient(180deg, #f9f4ea 0%, var(--paper) 54%, #efe5d3 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(22, 21, 20, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 21, 20, 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 92%);
}

a {
  color: inherit;
}

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 50;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  transition: top 120ms ease;
}

.skip-link:focus {
  top: 16px;
}

.landing-shell {
  width: min(1240px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 20px 0 56px;
}

.site-header {
  position: sticky;
  top: 14px;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 14px 18px;
  margin-bottom: 26px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(250, 244, 234, 0.82);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 30px rgba(42, 29, 16, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: var(--ink);
  color: #f6f0e4;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-size: 1rem;
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.8rem;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.site-nav a,
.nav-link {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.94rem;
}

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

.site-nav a[aria-current="true"] {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.28em;
}

.site-actions {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 8px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(255, 251, 245, 0.78);
  box-shadow: var(--shadow);
}

.site-footer span {
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer-links {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 14px;
}

.site-footer-links a {
  color: var(--ink-soft);
  text-decoration: none;
}

.site-footer-links a:hover,
.site-footer-links a:focus-visible {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 0.24em;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent);
  color: #f8f5ee;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition:
    transform 140ms ease,
    background-color 140ms ease,
    border-color 140ms ease;
}

.button:hover,
.button:focus-visible {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  transform: translateY(-1px);
}

.button-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: rgba(22, 21, 20, 0.06);
  border-color: var(--ink);
}

.button-small {
  min-height: 38px;
  padding: 0 16px;
  font-size: 0.92rem;
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  gap: 28px;
  align-items: stretch;
  padding: 34px 0 40px;
}

.hero-copy,
.hero-preview,
.content-section,
.cta-panel {
  position: relative;
}

.hero-copy {
  padding: 28px 0 12px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-section h1,
.section-heading h2,
.cta-panel h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.9rem, 6vw, 5.6rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
}

.section-heading h2,
.cta-panel h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.02;
}

.hero-body,
.section-heading p,
.problem-card p,
.workflow-step p,
.capability-card p,
.status-card p,
.run-card p,
.cta-panel p,
.rationale-quote p {
  color: var(--ink-soft);
  line-height: 1.7;
  font-size: 1.02rem;
}

.hero-body {
  max-width: 62ch;
  margin: 24px 0 0;
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-signals {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 32px 0 0;
}

.hero-signals div {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 251, 245, 0.56);
}

.hero-signals dt {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-signals dd {
  margin: 0;
  line-height: 1.55;
}

.hero-preview {
  align-self: center;
  padding: 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255, 251, 245, 0.96), rgba(244, 235, 218, 0.92));
  box-shadow: var(--shadow);
}

.hero-preview::after,
.content-section::after {
  content: "";
  position: absolute;
  inset: auto auto -14px -14px;
  width: 120px;
  height: 120px;
  border-left: 1px solid rgba(22, 21, 20, 0.12);
  border-bottom: 1px solid rgba(22, 21, 20, 0.12);
  pointer-events: none;
}

.content-section {
  margin-top: 22px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: clip;
}

.section-heading {
  max-width: 74ch;
  margin-bottom: 24px;
}

.problem-grid,
.capability-grid,
.status-grid,
.run-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.problem-card,
.workflow-step,
.capability-card,
.status-card,
.run-card,
.rationale-panel,
.rationale-quote {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
}

.problem-card h3,
.workflow-step h3,
.capability-card h3,
.status-card h3,
.run-card h3,
.rationale-panel h3 {
  margin: 0 0 10px;
  font-size: 1.18rem;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.workflow-step {
  position: relative;
  min-height: 240px;
}

.step-index {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.84rem;
  letter-spacing: 0.1em;
}

.section-capabilities {
  background:
    linear-gradient(180deg, rgba(255, 251, 245, 0.92), rgba(244, 235, 218, 0.92));
}

.capability-card {
  min-height: 220px;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.evidence-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
}

.evidence-card-wide {
  grid-row: span 2;
}

.evidence-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
}

.evidence-card figcaption {
  display: grid;
  gap: 6px;
  padding: 16px 18px 20px;
}

.evidence-card figcaption span {
  color: var(--muted);
  line-height: 1.55;
}

.rationale-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  align-items: stretch;
}

.rationale-panel ul,
.status-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ink-soft);
  line-height: 1.75;
}

.rationale-quote {
  display: grid;
  align-content: center;
  background:
    linear-gradient(180deg, rgba(14, 92, 73, 0.92), rgba(8, 71, 55, 0.96));
  color: #f8f5ee;
}

.rationale-quote p {
  margin: 0;
  color: inherit;
  font-family: var(--serif);
  font-size: 1.45rem;
  line-height: 1.4;
}

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

.run-card pre {
  margin: 14px 0 12px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: #1c1a18;
  color: #f5efe0;
  overflow: auto;
}

.run-card code {
  font-family: var(--mono);
  font-size: 0.92rem;
}

.section-cta {
  margin-bottom: 24px;
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
}

.section-cta::after {
  display: none;
}

.cta-panel {
  padding: 30px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(255, 251, 245, 0.95), rgba(232, 223, 207, 0.94));
  box-shadow: var(--shadow);
}

[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 500ms ease,
    transform 500ms ease;
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid rgba(14, 92, 73, 0.42);
  outline-offset: 3px;
}

@media (max-width: 1120px) {
  .site-header {
    grid-template-columns: 1fr;
    justify-items: start;
    border-radius: 28px;
  }

  .site-nav {
    justify-content: start;
  }

  .hero-section,
  .rationale-layout,
  .status-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 780px) {
  .landing-shell {
    width: min(100vw - 20px, 100%);
    padding-top: 10px;
  }

  .site-header,
  .content-section,
  .cta-panel,
  .hero-preview {
    border-radius: 22px;
  }

  .hero-signals,
  .problem-grid,
  .capability-grid,
  .run-grid,
  .workflow-grid,
  .evidence-grid {
    grid-template-columns: 1fr;
  }

  .evidence-card-wide {
    grid-row: auto;
  }

  .hero-section h1 {
    font-size: clamp(2.6rem, 14vw, 4.2rem);
  }

  .site-actions {
    width: 100%;
    justify-content: space-between;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }
}