/* Shared visual system: SourceMora editorial sourcing guides. */
:root {
  --ink: #17352d;
  --ink-soft: #31564a;
  --muted: #61736c;
  --line: #d8e1db;
  --paper: #f7f8f4;
  --surface: #ffffff;
  --sage: #e4eee6;
  --mint: #c9dfcf;
  --coral: #d45b42;
  --warm: #f5e5cf;
  --max: 1180px;
}

* { box-sizing: border-box; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

.site-header {
  height: 72px;
  background: rgba(247, 248, 244, .96);
  border-bottom: 1px solid var(--line);
  box-shadow: none;
}
.brand { gap: 11px; color: var(--ink); }
.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 5px;
  background: var(--ink);
  color: var(--mint);
  font-family: Georgia, "Times New Roman", serif;
}
.brand strong { font-size: 14px; }
nav { gap: 24px; }
nav a { color: var(--ink-soft); }
nav a:hover { color: var(--coral); }
.header-cta {
  padding: 8px 0;
  border-bottom: 1px solid var(--coral);
  color: var(--ink);
}

.eyebrow {
  color: var(--coral);
  font-size: 11px;
  letter-spacing: 1.3px;
  margin-bottom: 16px;
}
.hero {
  max-width: var(--max);
  min-height: 570px;
  grid-template-columns: minmax(0, 1.02fr) minmax(380px, .98fr);
  gap: 0;
  margin: 0 auto;
  background: var(--surface);
}
.hero-copy { padding: 94px 68px 80px; }
.hero h1,
.section-heading h2,
.checklist-intro h2,
.faq-section h2,
.rfq-section h2,
.library-section h2,
.article-hero h1,
.article h2 {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: 0;
}
.hero h1 {
  max-width: 590px;
  font-size: clamp(44px, 5vw, 68px);
  line-height: 1.03;
}
.hero-lead { max-width: 510px; font-size: 17px; margin: 24px 0 30px; }
.hero-actions { gap: 12px; }
.button {
  min-height: 45px;
  padding: 11px 16px;
  border-radius: 4px;
  font-size: 13px;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.button:hover { transform: none; }
.button-primary { background: var(--ink); border-color: var(--ink); }
.button-primary:hover { background: var(--coral); border-color: var(--coral); }
.button-quiet { border-color: var(--line); text-decoration: none; }
.button-quiet:hover { border-color: var(--ink); background: var(--surface); }
.disclosure { margin-top: 34px; padding-top: 15px; border-top: 1px solid var(--line); }
.hero-media { min-height: 570px; }
.hero-media img { filter: saturate(.88) contrast(.98); }
.media-note {
  right: 22px;
  bottom: 22px;
  width: 210px;
  padding: 15px 16px;
  background: var(--surface);
  border-left: 3px solid var(--coral);
  box-shadow: 0 12px 28px rgba(22, 53, 45, .15);
}

.intro-band,
.products,
.checklist-section,
.faq-section,
.library-section,
.rfq-section {
  padding: 92px max(24px, calc((100vw - 1120px) / 2));
}
.intro-band { background: var(--surface); }
.section-heading { gap: 80px; }
.section-heading h2,
.checklist-intro h2,
.faq-section h2,
.rfq-section h2,
.library-section h2 { font-size: clamp(34px, 3.6vw, 52px); line-height: 1.08; }
.section-heading p,
.checklist-intro > p,
.rfq-section > div > p { font-size: 16px; line-height: 1.75; }
.principles { gap: 26px; margin-top: 58px; }
.principles article { padding: 22px 22px 0 0; border-top: 2px solid var(--ink); }
.principles h3,
.product-card h3,
.checklist h3 { font-size: 18px; }

.products { background: var(--sage); }
.product-grid { gap: 14px; margin-top: 38px; }
.product-card {
  min-height: 292px;
  padding: 28px;
  background: rgba(255, 255, 255, .9);
  border: 1px solid rgba(23, 53, 45, .1);
  border-radius: 6px;
}
.product-card.feature { background: var(--ink); }
.product-card a { color: var(--ink); }
.product-card.feature a { color: var(--mint); }
.product-card a:hover { color: var(--coral); }

.checklist-section { background: var(--warm); gap: 72px; }
.checklist li { padding: 19px 0; border-color: rgba(23, 53, 45, .22); }
.checklist li:last-child { border-color: rgba(23, 53, 45, .22); }
.checklist li > span { color: var(--coral); font-weight: 750; }

.faq-section { background: var(--surface); }
.faq-section > h2 { margin-bottom: 34px; }
.faq-list { max-width: 880px; }
details { padding: 20px 0; }
summary { font-size: 17px; color: var(--ink); }
details p { font-size: 16px; line-height: 1.7; }

.library-section { background: var(--paper); }
.library-section h2 { margin-bottom: 32px; }
.library-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  background: transparent;
  border: 0;
}
.library-grid a {
  min-height: 210px;
  padding: 23px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface);
}
.library-grid strong { font-size: 22px; line-height: 1.2; color: var(--ink); }
.library-grid i { color: var(--coral); }
.library-grid a:hover { background: var(--sage); }

.rfq-section { background: var(--ink); gap: 72px; }
.rfq-section h2 { color: var(--surface); }
.rfq-section form { gap: 14px; }
input, select, textarea { border-radius: 4px; }
.rfq-section .button { border-color: var(--coral); background: var(--coral); color: var(--surface); }
.rfq-section .button:hover { background: #bd4935; border-color: #bd4935; }

/* Article pages use the same quiet editorial rhythm as the homepage. */
.article-hero {
  max-width: 1040px;
  padding: 88px max(24px, calc((100vw - 920px) / 2)) 48px;
  margin: 0 auto;
  background: var(--paper);
}
.article-hero h1 { font-size: clamp(42px, 5.4vw, 66px); line-height: 1.06; }
.article-hero .lead { font-size: 18px; line-height: 1.65; }
.article-visual-wrap { max-width: 1040px; padding: 0 60px; margin-bottom: 34px; }
.article-visual { height: 340px; border-radius: 6px; }
.article {
  max-width: 800px;
  padding: 58px 0 92px;
  margin: 0 auto;
  background: transparent;
  border-top: 1px solid var(--line);
}
.article h2 { margin-top: 50px; font-size: 32px; }
.article p, .article li { color: #40554d; font-size: 16px; line-height: 1.78; }
.article-callout { border-left-color: var(--coral); background: #fff7ed; }
.article nav { border-top-color: var(--line); }
.article nav a, .sources li a { color: var(--ink-soft); }

/* Public research pages retain their denser evidence layout without becoming a separate design. */
.research-meta { gap: 7px; margin-top: 32px; }
.research-meta span {
  border-color: var(--line);
  border-radius: 4px;
  background: var(--surface);
  color: var(--ink-soft);
}
.research-intro { gap: 52px; padding-bottom: 46px; }
.research-intro h2, .research-columns h2, .sources h2 { color: var(--ink); }
.research-intro > p { font-size: 16px; line-height: 1.75; }
.category-grid, .comparison-grid { gap: 12px; border: 0; background: transparent; }
.category-grid { grid-template-columns: repeat(2, 1fr); }
.category-grid section, .comparison-grid section {
  min-height: 215px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface);
}
.category-grid h3, .comparison-grid h3 { color: var(--ink); }
.research-columns { gap: 14px; margin-top: 58px; }
.research-columns section { border-radius: 5px; background: var(--sage); }
.boundary-box { background: var(--warm) !important; }
.sources { margin-top: 58px; }

footer {
  padding: 26px max(24px, calc((100vw - 1180px) / 2));
  background: var(--paper);
  border-top: 1px solid var(--line);
}

@media (max-width: 900px) {
  .hero-copy { padding: 76px 44px; }
  .library-grid { grid-template-columns: repeat(2, 1fr); }
  .article { padding-left: 40px; padding-right: 40px; }
}

@media (max-width: 760px) {
  .site-header { height: 64px; padding: 0 18px; }
  .brand { font-size: 10px; }
  .brand strong { font-size: 12px; }
  .brand-mark { width: 29px; height: 29px; }
  .header-cta { font-size: 12px; }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { padding: 68px 24px 54px; }
  .hero h1 { font-size: clamp(40px, 11vw, 54px); }
  .hero-media { min-height: 340px; height: 340px; }
  .media-note { right: 16px; bottom: 16px; }
  .intro-band, .products, .checklist-section, .faq-section, .library-section, .rfq-section { padding: 66px 24px; }
  .section-heading { gap: 18px; }
  .principles { gap: 24px; margin-top: 40px; }
  .product-grid, .library-grid { grid-template-columns: 1fr; }
  .product-card { min-height: 240px; }
  .checklist-section, .rfq-section { gap: 42px; }
  .article-hero { padding: 66px 24px 38px; }
  .article-visual-wrap { padding: 0 24px; }
  .article-visual { height: 235px; }
  .article { padding: 42px 24px 68px; }
  .article h2 { font-size: 29px; }
  /* Loaded last, so this must override the research-grid desktop rule. */
  .category-grid { grid-template-columns: minmax(0, 1fr); }
  .category-grid section { min-width: 0; }
  .research-meta span { white-space: nowrap; letter-spacing: .4px; }
}