/* Shinan Advisory Services — shared stylesheet
   Design system decided in Phase 3 (see content/visual-direction-decided.md) */

:root {
  --bg: #faf7f1;
  --ink: #25211c;
  --ink-soft: #57503f;
  --accent: #8a6a34;
  --hair: rgba(37, 33, 28, 0.14);
  --hero-bg: #2a2019;
  --hero-ink: #f3ece1;
  --hero-sub: #d9cbb8;
  --hero-hair: rgba(243, 236, 225, 0.16);
  --callout-bg: rgba(138, 106, 52, 0.08);
  --max-width: 860px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Work Sans", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

h1, h2, h3 {
  font-family: "Source Serif 4", Georgia, serif;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { color: var(--ink); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 48px;
}

/* ---------- Header / nav ---------- */

header.site-header {
  background: var(--hero-bg);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 28px 0;
  border-bottom: 1px solid var(--hero-hair);
}

.wordmark {
  font-family: "Source Serif 4", serif;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--hero-ink) !important;
}

nav.site-nav {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  font-size: 13px;
}

nav.site-nav a {
  color: var(--hero-sub);
}
nav.site-nav a:hover { color: var(--hero-ink); }

nav.site-nav .current {
  color: var(--hero-ink);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}

/* ---------- Hero (homepage) ---------- */

.hero {
  background: var(--hero-bg);
  border-bottom: 2px solid var(--accent);
}

.hero-inner {
  padding: 80px 0 88px 0;
  max-width: 680px;
}

.hero h1 {
  font-size: 44px;
  line-height: 1.15;
  color: var(--hero-ink);
}

.hero p {
  font-family: "Work Sans", sans-serif;
  font-size: 18px;
  line-height: 1.6;
  color: var(--hero-sub);
  margin-top: 24px;
  max-width: 560px;
}

/* ---------- Page header (Agentic AI page) ---------- */

.page-hero {
  background: var(--hero-bg);
  border-bottom: 2px solid var(--accent);
}

.page-hero-inner {
  padding: 64px 0;
}

.page-hero h1 {
  font-size: 36px;
  color: var(--hero-ink);
}

/* ---------- Sections ---------- */

.section {
  padding: 56px 0 40px 0;
}

.section:last-of-type { padding-bottom: 56px; }

.label {
  font-family: "Work Sans", sans-serif;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.tag {
  font-family: "Work Sans", sans-serif;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
}

.stack { display: flex; flex-direction: column; gap: 16px; }

.stack-top { margin-top: 24px; }

.divider {
  height: 1px;
  background: var(--hair);
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ---------- Cards ---------- */

.card {
  border: 1px solid var(--hair);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card h3 {
  font-size: 20px;
  color: var(--accent);
}

.card .body-copy {
  font-size: 15px;
  line-height: 1.65;
}

/* ---------- Agentic AI callout ---------- */

.callout {
  background: var(--callout-bg);
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.callout p {
  font-family: "Source Serif 4", serif;
  font-style: italic;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
}

.callout a { font-weight: 500; font-size: 14px; }

/* ---------- About ---------- */

.about-copy {
  max-width: 640px;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.about-copy p {
  font-size: 16px;
  line-height: 1.75;
}

.about-copy .closing {
  font-family: "Source Serif 4", serif;
  font-style: italic;
  font-size: 17px;
  line-height: 1.6;
  margin-top: 8px;
}

/* ---------- Agentic AI page body copy ---------- */

.page-copy {
  max-width: 680px;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-copy p {
  font-size: 16px;
  line-height: 1.75;
}

.back-link { margin-top: 40px; display: inline-block; font-size: 14px; }

/* ---------- Footer / contact ---------- */

footer.site-footer {
  border-top: 1px solid var(--hair);
  padding: 36px 0;
  min-height: 32vh;
  display: flex;
  align-items: center;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-row .practice-name {
  font-size: 13px;
  color: var(--ink-soft);
}

.footer-row .contact-link { font-size: 14px; }

/* ---------- Responsive ---------- */

@media (max-width: 700px) {
  .container { padding: 0 24px; }
  .nav-row { padding: 22px 0; }
  nav.site-nav { gap: 16px; font-size: 12px; }
  .hero-inner { padding: 56px 0 60px 0; }
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 16px; }
  .page-hero-inner { padding: 44px 0; }
  .page-hero h1 { font-size: 28px; }
  .section { padding: 40px 0 28px 0; }
  .card { padding: 24px; }
  .callout { padding: 22px 24px; }
  .site-footer { min-height: 24vh; }
}