:root {
  color-scheme: light;
  --paper: #f4f1eb;
  --ink: #171717;
  --muted: #5f645e;
  --line: #d7d0c3;
  --panel: #fffdf8;
  --accent: #0f766e;
  --accent-strong: #0b4f4b;
  --rust: #9a3412;
  --blue: #245b87;
  --code: #111827;
  --shadow: 0 14px 40px rgba(36, 31, 24, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

a {
  color: inherit;
}

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

code {
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #faf7ef;
  padding: 0.08rem 0.28rem;
  font-size: 0.95em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
  padding: 1rem clamp(1rem, 4vw, 3rem);
  background: rgba(244, 241, 235, 0.92);
  border-bottom: 1px solid rgba(215, 208, 195, 0.75);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  text-decoration: none;
}

.brand-logo {
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 6px;
  object-fit: cover;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
  font-size: 0.94rem;
}

.nav a {
  border-radius: 6px;
  color: var(--muted);
  padding: 0.42rem 0.58rem;
  text-decoration: none;
}

.nav a:hover,
.nav a[aria-current="page"] {
  background: #e8e1d6;
  color: var(--ink);
}

main {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: clamp(1.25rem, 4vw, 3.5rem);
  align-items: center;
  padding: clamp(2rem, 5vw, 3.75rem) 0 clamp(1rem, 3vw, 1.75rem);
}

.hero-copy,
.page-hero {
  max-width: 720px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 0.72rem;
  color: var(--accent-strong);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 1rem;
  font-size: clamp(3.2rem, 8vw, 6.8rem);
  line-height: 0.96;
}

.page-hero h1 {
  font-size: clamp(3rem, 7vw, 5.8rem);
}

h2 {
  margin-bottom: 0.85rem;
  font-size: clamp(1.75rem, 3vw, 3rem);
  line-height: 1.05;
}

h3 {
  margin-bottom: 0.45rem;
  font-size: 1.05rem;
}

p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.hero-text,
.page-hero p {
  font-size: clamp(1.08rem, 2vw, 1.32rem);
  line-height: 1.58;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  border: 1px solid var(--ink);
  border-radius: 6px;
  padding: 0.72rem 1rem;
  font-weight: 800;
  line-height: 1.1;
  text-decoration: none;
}

.button.primary {
  background: var(--ink);
  color: var(--panel);
}

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

.hero-visual,
.feature-visual {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-visual img,
.feature-visual img {
  width: 100%;
}

.hero-visual figcaption {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
  padding: 0.75rem 0.9rem;
}

.section,
.band,
.code-band,
.feature-row,
.substack-panel,
.page-hero {
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.page-hero.compact {
  padding-bottom: clamp(1rem, 3vw, 2rem);
}

.split,
.feature-row {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: start;
}

.feature-row {
  align-items: center;
}

.feature-row.reverse .feature-visual {
  order: 2;
}

.positioning-grid,
.card-grid,
.metric-grid,
.resource-grid {
  display: grid;
  gap: 0.9rem;
}

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

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

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

.tile,
.card-link,
.info-card,
.metric,
.resource-card,
.stack-list article {
  min-height: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 1rem;
}

.card-link {
  display: block;
  text-decoration: none;
}

.card-link:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.card-link span,
.metric strong {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 1.02rem;
  font-weight: 850;
}

.card-link p,
.tile p,
.info-card p,
.metric span,
.resource-card p,
.stack-list p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.55;
}

.resource-card p {
  margin-bottom: 0.35rem;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.resource-card a {
  display: block;
  margin-top: 0.55rem;
  color: var(--ink);
  font-weight: 750;
  line-height: 1.35;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.resource-card h3 .resource-heading-link {
  display: inline;
  margin-top: 0;
  font-weight: 850;
}

.metric strong {
  color: var(--blue);
  font-size: clamp(1.4rem, 3vw, 2.3rem);
}

.metric:nth-child(2) strong {
  color: var(--rust);
}

.band,
.code-band,
.substack-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(1.25rem, 4vw, 3rem);
  align-items: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.substack-panel {
  align-items: start;
  border-bottom: 0;
}

.link-stack {
  display: grid;
  gap: 0.65rem;
}

.link-stack a {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 0.85rem 1rem;
  font-weight: 800;
  text-decoration: none;
}

.link-stack a:hover {
  border-color: var(--accent);
}

pre {
  margin: 0;
  overflow: auto;
  border-radius: 8px;
  background: var(--code);
  color: #f9fafb;
  padding: 1rem;
}

pre code {
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0;
}

.stack-list {
  display: grid;
  gap: 0.9rem;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem clamp(1rem, 4vw, 3rem);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.85rem;
}

.site-footer a {
  color: var(--ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .hero,
  .split,
  .feature-row,
  .band,
  .code-band,
  .substack-panel {
    grid-template-columns: 1fr;
  }

  .feature-row.reverse .feature-visual {
    order: initial;
  }

  .positioning-grid,
  .card-grid,
  .card-grid.three,
  .metric-grid,
  .resource-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  main {
    width: min(100% - 1rem, 1180px);
  }

  .site-header,
  .site-footer {
    padding-inline: 0.75rem;
  }

  .brand {
    font-size: 0.96rem;
  }

  .nav {
    gap: 0.15rem;
    font-size: 0.88rem;
  }

  .nav a {
    padding-inline: 0.42rem;
  }

  h1,
  .page-hero h1 {
    font-size: 2.55rem;
  }

  .hero {
    padding-top: 1.5rem;
    padding-bottom: 0;
  }

  .hero-text,
  .page-hero p {
    font-size: 1rem;
    line-height: 1.5;
  }

  .actions {
    gap: 0.45rem;
    margin-top: 1rem;
  }

  .button {
    min-height: 40px;
    padding: 0.62rem 0.72rem;
    font-size: 0.9rem;
  }

  .hero-visual {
    max-width: 340px;
  }

  .hero-visual figcaption {
    padding: 0.55rem 0.7rem;
  }

  .positioning-grid,
  .card-grid,
  .card-grid.three,
  .metric-grid,
  .resource-grid {
    grid-template-columns: 1fr;
  }

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

  .site-footer div {
    justify-content: flex-start;
  }
}