:root {
  --bg: #f6f3ec;
  --surface: #fffdf8;
  --surface-muted: #efe9dc;
  --text: #1f2a2a;
  --text-soft: #5d6b6b;
  --accent: #215b58;
  --accent-soft: #dceeed;
  --border: #d8d0c2;
  --shadow: 0 18px 40px rgba(31, 42, 42, 0.08);
  --radius: 20px;
  --max-width: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(33, 91, 88, 0.08), transparent 28rem),
    linear-gradient(180deg, #f8f5ef 0%, var(--bg) 48%, #f7f3eb 100%);
}

a {
  color: inherit;
}

code {
  font-family: "IBM Plex Sans", "SFMono-Regular", Consolas, monospace;
  font-size: 0.94em;
  background: rgba(33, 91, 88, 0.08);
  border-radius: 0.4rem;
  padding: 0.12rem 0.35rem;
}

.container {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(246, 243, 236, 0.84);
  border-bottom: 1px solid rgba(216, 208, 194, 0.7);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.5rem;
  gap: 1rem;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: 1.25rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--text-soft);
  font-weight: 500;
}

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

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  font: inherit;
}

.hero {
  padding: 5.5rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 2rem;
  align-items: start;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Source Serif 4", Georgia, serif;
  line-height: 1.08;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.6rem);
  max-width: 12ch;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

h3 {
  font-size: 1.28rem;
}

.lead,
.hero-copy p,
.section p,
.repo-copy {
  color: var(--text-soft);
  line-height: 1.75;
  font-size: 1.02rem;
}

.lead {
  max-width: 62ch;
  margin: 1.5rem 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.6rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

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

.button.primary {
  background: var(--accent);
  color: #f9f8f3;
}

.button.subtle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
}

.hero-meta li {
  background: rgba(255, 253, 248, 0.72);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 0.95rem 1rem;
  color: var(--text-soft);
}

.hero-panel {
  position: relative;
}

.panel-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
}

.panel-emphasis {
  border-top: 4px solid var(--accent);
}

.mini-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.1rem 0;
}

.mini-label,
.result-label,
.variant-tag,
.note-inline {
  display: block;
  color: var(--text-soft);
  font-size: 0.82rem;
  margin-bottom: 0.35rem;
}

.panel-note {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.panel-wins {
  margin: 0 0 0.9rem;
  padding: 0.85rem 0.95rem;
  border-radius: 0.95rem;
  background: rgba(220, 238, 237, 0.58);
  color: var(--text);
  line-height: 1.6;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: rgba(255, 253, 248, 0.58);
  border-top: 1px solid rgba(216, 208, 194, 0.6);
  border-bottom: 1px solid rgba(216, 208, 194, 0.6);
}

.section-heading {
  display: grid;
  gap: 0.65rem;
  margin-bottom: 1.75rem;
}

.section-heading.left {
  margin-bottom: 1rem;
}

.overview-grid,
.variant-grid,
.workflow-grid,
.results-grid {
  display: grid;
  gap: 1.2rem;
}

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

.info-card,
.variant-card,
.workflow-card,
.result-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.2rem;
  padding: 1.35rem;
}

.attention-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 1.4rem;
}

.attention-rail {
  display: grid;
  gap: 1rem;
}

.rail-step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.2rem;
  padding: 1.2rem;
}

.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  flex: 0 0 auto;
}

.variant-grid {
  grid-template-columns: 1fr;
}

.variant-card.featured {
  border-color: rgba(33, 91, 88, 0.42);
  background: linear-gradient(180deg, rgba(220, 238, 237, 0.55), var(--surface));
}

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

.result-card strong {
  display: block;
  margin: 0.45rem 0 0.5rem;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 2rem;
}

.result-card.narrative strong {
  font-size: 1.35rem;
}

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

.workflow-card a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.repo-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.85fr);
  gap: 1.8rem;
  align-items: start;
}

.repo-tree {
  display: grid;
  gap: 0.7rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.2rem;
  padding: 1.2rem;
}

.repo-tree div {
  padding: 0.65rem 0.8rem;
  border-radius: 0.8rem;
  background: rgba(239, 233, 220, 0.45);
  color: var(--text-soft);
}

.site-footer {
  padding: 2rem 0 2.6rem;
  border-top: 1px solid rgba(216, 208, 194, 0.8);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  color: var(--text-soft);
}

.footer-links {
  display: flex;
  gap: 1rem;
}

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

@media (max-width: 980px) {
  .hero-grid,
  .attention-layout,
  .repo-grid,
  .overview-grid,
  .results-grid,
  .workflow-grid {
    grid-template-columns: 1fr;
  }

  .hero-meta {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 4.6rem;
    right: 1rem;
    display: none;
    flex-direction: column;
    min-width: 15rem;
    padding: 1rem;
    border-radius: 1rem;
    background: rgba(255, 253, 248, 0.98);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
  }

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

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