/* ============================================================
   Asia GEO Institute — Design System
   Academic research aesthetic. Pure CSS, zero dependencies.
   ============================================================ */

:root {
  --bg: #fdfdfb;
  --bg-alt: #f4f3ee;
  --primary: #1e3a5f;
  --primary-dark: #142a45;
  --ink: #23282e;
  --muted: #5b6570;
  --border: #d9d8cf;
  --serif: Georgia, 'Times New Roman', Times, serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, sans-serif;
}

/* ---------- Reset & base ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: rgba(30, 58, 95, 0.35);
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-dark);
  text-decoration-color: currentColor;
}

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

h1, h2, h3, h4 {
  font-family: var(--serif);
  color: var(--primary);
  line-height: 1.3;
  font-weight: 700;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.25rem; }

p {
  margin: 0 0 1.1em;
}

ul, ol {
  margin: 0 0 1.1em 1.4em;
}

li {
  margin-bottom: 0.4em;
}

strong {
  color: var(--ink);
}

/* ---------- Layout ---------- */

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: 1.75rem;
  margin: 56px 0 16px;
}

.section-title:first-child {
  margin-top: 48px;
}

main {
  padding-bottom: 24px;
}

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

.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.site-header .header-inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 28px;
  padding-top: 20px;
  padding-bottom: 20px;
}

.brand {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.brand:hover {
  color: var(--primary-dark);
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
}

.site-header nav a {
  font-size: 0.95rem;
  color: var(--muted);
  text-decoration: none;
}

.site-header nav a:hover {
  color: var(--primary);
}

/* ---------- Hero & page head ---------- */

.hero {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  padding: 72px 0 60px;
}

.hero h1 {
  font-size: 2.75rem;
  margin-bottom: 10px;
}

.hero .hero-sub {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 46em;
}

.hero .lead {
  font-size: 1.05rem;
  max-width: 54em;
  margin-top: 20px;
  margin-bottom: 0;
}

.page-head {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  padding: 52px 0 44px;
}

.page-head h1 {
  font-size: 2.25rem;
  margin-bottom: 8px;
}

.page-head .title {
  color: var(--muted);
  margin-bottom: 0;
}

.meta-line {
  color: var(--muted);
  font-size: 0.92rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  margin: 0 0 36px;
}

/* ---------- Cards & grids ---------- */

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 24px 0;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  margin: 24px 0;
}

.card {
  background: #fff;
  border: 1px solid var(--border);
  padding: 24px 26px;
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.card p {
  color: var(--muted);
  font-size: 0.96rem;
  margin-bottom: 0.7em;
}

.card p:last-child {
  margin-bottom: 0;
}

.card .card-link {
  font-weight: 600;
}

/* ---------- Person card & profile header ---------- */

.person-card {
  display: flex;
  gap: 26px;
  align-items: flex-start;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 28px;
  margin: 24px 0;
}

.person-card .monogram {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 700;
  flex-shrink: 0;
}

.person-card h3 {
  margin-bottom: 2px;
}

.person-card .person-role {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 10px;
}

.person-card p:last-child {
  margin-bottom: 0;
}

.profile-header {
  display: flex;
  gap: 30px;
  align-items: flex-start;
  margin: 52px 0 28px;
}

.profile-header .monogram {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 700;
  flex-shrink: 0;
}

.profile-header .title {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.profile-header .lead {
  font-size: 1.02rem;
}

/* ---------- Stats ---------- */

.stat {
  background: #fff;
  border: 1px solid var(--border);
  border-top: 3px solid var(--primary);
  padding: 18px 20px;
}

.stat-number {
  display: block;
  font-family: var(--serif);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.stat-label {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
  margin-top: 6px;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  padding: 10px 22px;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
}

.btn:hover {
  background: var(--bg-alt);
  color: var(--primary-dark);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
}

/* ---------- Quote ---------- */

.quote {
  background: var(--bg-alt);
  border-left: 4px solid var(--primary);
  padding: 20px 26px;
  margin: 24px 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.06rem;
}

.quote cite {
  display: block;
  margin-top: 10px;
  font-family: var(--sans);
  font-style: normal;
  font-size: 0.92rem;
  color: var(--muted);
}

/* ---------- FAQ ---------- */

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}

.faq-item h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.faq-item p:last-child {
  margin-bottom: 0;
}

/* ---------- Table ---------- */

.table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.95rem;
}

.table th {
  font-family: var(--serif);
  text-align: left;
  background: var(--primary);
  color: #fff;
  padding: 10px 14px;
}

.table td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  vertical-align: top;
}

.table tbody tr:nth-child(even) {
  background: var(--bg-alt);
}

/* ---------- Glossary ---------- */

.glossary-term {
  font-size: 1.2rem;
  margin: 36px 0 6px;
}

/* ---------- Maturity model levels ---------- */

.level-badge {
  display: inline-block;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fff;
  background: var(--primary);
  padding: 3px 12px;
  margin-right: 10px;
  vertical-align: middle;
}

.level-1 { background: #a8b2bd; }
.level-2 { background: #7f90a2; }
.level-3 { background: #5d7690; }
.level-4 { background: #3a5c7e; }
.level-5 { background: #1e3a5f; }

.level-block {
  margin: 40px 0 0;
}

.level-block h2 {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

.level-block h4 {
  font-size: 1.05rem;
  margin: 14px 0 6px;
}

.level-block ul {
  margin-bottom: 1em;
}

/* ---------- Findings list ---------- */

ol.findings {
  margin-left: 1.6em;
}

ol.findings li {
  margin-bottom: 16px;
  padding-left: 4px;
}

ol.findings li strong {
  font-weight: 700;
}

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

.site-footer {
  background: var(--bg-alt);
  border-top: 3px solid var(--primary);
  margin-top: 80px;
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 28px;
}

.site-footer h4 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.site-footer nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.site-footer a {
  color: var(--primary);
  font-size: 0.95rem;
}

.site-footer p {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 0;
}

.footer-legal {
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

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

@media (max-width: 820px) {
  h1 { font-size: 2rem; }
  .hero h1 { font-size: 2.1rem; }
  .page-head h1 { font-size: 1.85rem; }
  .grid-2,
  .grid-3,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .profile-header {
    flex-direction: column;
  }
  .person-card {
    flex-direction: column;
  }
}