/* ActionGrove design system */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --paper: #F7F5F0;
  --ink: #1F2A24;
  --moss: #3D6B52;
  --clay: #C97B4A;
  --warm-gray: #A8A296;
  --line: #DEDACE;
  --white: #FFFFFF;
  --max-w: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--ink);
}

h1 { font-size: clamp(2rem, 4vw, 2.9rem); font-weight: 700; }
h2 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); margin-top: 2em; }
h3 { font-size: 1.25rem; margin-top: 1.6em; }

p { margin: 0 0 1.2em; }
a { color: var(--moss); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--clay); outline-offset: 2px; }

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

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo .mark {
  width: 10px; height: 10px;
  background: var(--clay);
  border-radius: 2px;
  display: inline-block;
}
.main-nav { display: flex; gap: 28px; }
.main-nav a {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
}
.main-nav a:hover { color: var(--moss); text-decoration: none; border-bottom: 2px solid var(--clay); }

.nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; cursor: pointer; color: var(--ink); }

@media (max-width: 760px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 16px;
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; }
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 80px;
  padding: 48px 0;
  color: var(--warm-gray);
  font-size: 0.9rem;
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { color: var(--ink); }

/* Hero */
.hero {
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--line);
}
.hero .eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--moss);
  display: inline-block;
  margin-bottom: 14px;
}
.hero h1 { max-width: 720px; }
.hero .lede {
  max-width: 580px;
  font-size: 1.15rem;
  color: #4A5750;
  margin-top: 14px;
}

/* Measurement chip — signature element */
.measure {
  display: inline-flex;
  align-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85em;
  font-weight: 500;
  color: var(--moss);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.05em 0.5em;
  white-space: nowrap;
}

/* Category pills */
.pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--moss);
  border: 1px solid var(--moss);
  border-radius: 100px;
  padding: 3px 11px;
  display: inline-block;
}
.pill.clay { color: var(--clay); border-color: var(--clay); }

/* Article grid / cards */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  padding: 56px 0;
}
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }

.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  overflow: hidden;
}
.card-thumb {
  margin: -24px -24px 4px;
  aspect-ratio: 1200 / 480;
  overflow: hidden;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(31,42,36,0.08); }
.card h3 { margin: 0; font-size: 1.1rem; }
.card h3 a { color: var(--ink); }
.card .meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--warm-gray);
  display: flex;
  gap: 12px;
}
.card p.excerpt { color: #4A5750; font-size: 0.95rem; margin: 0; }

/* Section heading row */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
  margin-bottom: 4px;
}
.section-head h2 { margin: 0; }
.section-head a { font-size: 0.9rem; font-weight: 500; }

/* Article layout (reference-doc style, left rail + content) */
.article-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 56px;
  padding: 48px 0 80px;
}
@media (max-width: 860px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-rail { order: 2; }
}

.article-rail {
  position: sticky;
  top: 96px;
  align-self: start;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--warm-gray);
}
.article-rail .rail-block { margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.article-rail .rail-label { text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; display: block; }
.article-rail .rail-value { color: var(--ink); font-size: 0.85rem; }
.article-rail nav a { display: block; color: var(--warm-gray); padding: 4px 0; }
.article-rail nav a:hover { color: var(--moss); }

.article-body { max-width: 700px; }
.article-body ul, .article-body ol { padding-left: 1.3em; margin-bottom: 1.2em; }
.article-body li { margin-bottom: 0.5em; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 0.92rem;
}
.article-body th, .article-body td {
  border: 1px solid var(--line);
  padding: 9px 12px;
  text-align: left;
}
.article-body th {
  background: var(--white);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.article-body blockquote {
  border-left: 3px solid var(--clay);
  margin: 1.6em 0;
  padding: 0.4em 0 0.4em 1.2em;
  color: #4A5750;
  font-style: italic;
}
.callout {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--moss);
  border-radius: 8px;
  padding: 18px 20px;
  margin: 1.8em 0;
  font-size: 0.95rem;
}
.callout strong { color: var(--moss); font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; display: block; margin-bottom: 6px; }

.related-box {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.related-box h3 { margin-bottom: 16px; }
.related-list { display: grid; gap: 10px; }
.related-list a { font-weight: 500; }

/* Buttons */
.btn {
  display: inline-block;
  background: var(--moss);
  color: var(--white) !important;
  padding: 12px 22px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none !important;
}
.btn:hover { background: #2E5740; }
.btn.outline {
  background: transparent;
  color: var(--ink) !important;
  border: 1px solid var(--ink);
}

/* Author byline */
.byline {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.byline-photo {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--line);
}
.byline-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.byline-name {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink);
}
.byline-name a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--line);
}
.byline-name a:hover { text-decoration-color: var(--moss); }
.byline-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  color: var(--warm-gray);
}

/* Author page */
.author-hero {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  padding: 56px 0 16px;
}
.author-hero img {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--line);
  flex-shrink: 0;
}
@media (max-width: 600px) {
  .author-hero { flex-direction: column; align-items: center; text-align: center; }
}

/* Article header diagram */
.header-diagram {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--line);
  margin: 4px 0 32px;
  overflow: hidden;
  background: var(--paper);
}
.header-diagram img {
  width: 100%;
  height: auto;
  display: block;
}

.static-page { max-width: 720px; padding: 56px 24px 80px; margin: 0 auto; }
.static-page h2 { margin-top: 1.8em; }

/* Ad slot placeholders */
.ad-slot {
  background: repeating-linear-gradient(45deg, #EFECE4, #EFECE4 10px, #E7E3D8 10px, #E7E3D8 20px);
  border: 1px dashed var(--warm-gray);
  border-radius: 8px;
  color: var(--warm-gray);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
  margin: 2em 0;
}