/* IJTEG — International Journal of Transnational Education and Governance
   Public site stylesheet. Deployed via Cloudflare Pages.
   ------------------------------------------------------------------ */

:root {
  --ink:        #0f1e33;   /* deep academic navy */
  --ink-2:      #1e2f47;
  --ink-soft:   #4a5772;
  --muted:      #6b7280;
  --paper:      #faf7f2;   /* warm off-white */
  --paper-2:    #f2ede3;
  --line:       #e6e0d4;
  --line-2:     #d9d1c0;
  --gold:       #a37a2c;   /* restrained accent */
  --gold-soft:  #c9a15a;
  --white:      #ffffff;

  --font-serif: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --font-sans:  "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono:  "IBM Plex Mono", ui-monospace, Menlo, monospace;

  --maxw: 1180px;
  --gutter: clamp(20px, 4vw, 40px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--gold); }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0;
}

p { text-wrap: pretty; }

/* ---------- Utility ---------- */

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

.eyebrow {
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}

.divider {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}

/* ---------- Top bar ---------- */

.topbar {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(1.1) blur(6px);
  -webkit-backdrop-filter: saturate(1.1) blur(6px);
  background: rgba(250, 247, 242, 0.92);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 78px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  display: block;
  background: transparent;
  border-radius: 50%;
  overflow: hidden;
}
.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.brand-text { line-height: 1.15; min-width: 0; }
.brand-name {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.brand-sub {
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav a {
  font-size: 14px;
  color: var(--ink-soft);
  padding: 8px 14px;
  border-radius: 3px;
  white-space: nowrap;
  transition: color .15s ease, background .15s ease;
}
.nav a:hover { color: var(--ink); background: var(--paper-2); }
.nav a.active { color: var(--ink); }
.nav a.active::after {
  content: "";
  display: block;
  height: 2px;
  background: var(--gold);
  margin-top: 4px;
  border-radius: 1px;
}
.nav a.cta {
  background: var(--ink);
  color: var(--paper);
  margin-left: 8px;
  padding: 9px 16px;
}
.nav a.cta:hover { background: var(--ink-2); color: var(--paper); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: 3px;
  padding: 8px 10px;
  cursor: pointer;
  color: var(--ink);
}

@media (max-width: 900px) {
  .nav {
    position: absolute;
    top: 78px;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 12px var(--gutter) 20px;
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 6px; font-size: 15px; }
  .nav a.cta { margin: 8px 0 0; text-align: center; }
  .nav-toggle { display: inline-flex; }
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 500;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .18s ease;
  letter-spacing: 0.01em;
}
.btn-primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn-primary:hover { background: var(--ink-2); color: var(--paper); }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); }
.btn .arr { transition: transform .18s ease; }
.btn:hover .arr { transform: translateX(3px); }

/* ---------- Hero ---------- */

.hero {
  padding: clamp(56px, 9vw, 108px) 0 clamp(56px, 8vw, 96px);
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(163, 122, 44, 0.06), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(15, 30, 51, 0.04), transparent 60%);
  pointer-events: none;
}
.hero-seal {
  position: absolute;
  top: -60px;
  right: -80px;
  width: clamp(360px, 42vw, 560px);
  height: clamp(360px, 42vw, 560px);
  opacity: 0.06;
  pointer-events: none;
  z-index: 0;
}
.hero-seal img { width: 100%; height: 100%; object-fit: contain; }
@media (max-width: 900px) {
  .hero-seal { top: -40px; right: -120px; width: 340px; height: 340px; opacity: 0.05; }
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.35fr 1fr; gap: 64px; align-items: end; }
@media (max-width: 900px) { .hero-inner { grid-template-columns: 1fr; gap: 40px; } }

.hero .eyebrow { margin-bottom: 22px; }

.hero h1 {
  font-size: clamp(38px, 5.4vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 400;
  margin-bottom: 18px;
}
.hero h1 em {
  font-style: italic;
  color: var(--gold);
  font-weight: 400;
}
.hero .subhead {
  font-family: var(--font-serif);
  font-size: clamp(16px, 1.4vw, 18.5px);
  font-style: italic;
  color: var(--ink-soft);
  margin-bottom: 26px;
  line-height: 1.5;
}
.hero .lede {
  font-size: 16.5px;
  color: var(--ink-soft);
  max-width: 620px;
  margin-bottom: 32px;
}

.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-facts {
  border-left: 1px solid var(--line);
  padding-left: 40px;
}
@media (max-width: 900px) { .hero-facts { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 32px; } }

.fact { padding: 14px 0; border-bottom: 1px dashed var(--line); }
.fact:last-child { border-bottom: 0; }
.fact-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.fact-value {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--ink);
}

/* ---------- Section base ---------- */

section.block {
  padding: clamp(64px, 9vw, 110px) 0;
  border-bottom: 1px solid var(--line);
}
section.block.tight { padding: clamp(48px, 7vw, 84px) 0; }
section.block.paper-2 { background: var(--paper-2); }

.section-head {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 60px;
  margin-bottom: 44px;
  align-items: baseline;
}
@media (max-width: 800px) {
  .section-head { grid-template-columns: 1fr; gap: 12px; }
}
.section-head h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.15;
  font-weight: 400;
  letter-spacing: -0.015em;
}
.section-head .eyebrow { margin-bottom: 8px; }
.section-head p.deck {
  font-size: 16.5px;
  color: var(--ink-soft);
  max-width: 680px;
}

/* ---------- About / Aims two-col ---------- */

.prose {
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-2);
  max-width: 720px;
}
.prose p + p { margin-top: 1.1em; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; gap: 40px; } }

/* ---------- Highlights grid ---------- */

.highlights {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
@media (max-width: 900px) { .highlights { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .highlights { grid-template-columns: 1fr; } }

.highlight {
  padding: 28px 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.highlight-num {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.highlight-text {
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.4;
  color: var(--ink);
}

/* ---------- Board preview ---------- */

.leaders {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
@media (max-width: 760px) { .leaders { grid-template-columns: 1fr; } }

.leader-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 34px 32px;
  display: flex;
  gap: 22px;
  align-items: flex-start;
  transition: border-color .2s ease, transform .2s ease;
}
.leader-card:hover { border-color: var(--gold-soft); }

.avatar {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--paper-2);
  border: 1px solid var(--line-2);
  display: grid;
  place-items: center;
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--ink);
  flex-shrink: 0;
  letter-spacing: 0;
}

.leader-role {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 6px;
}
.leader-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 6px;
  line-height: 1.25;
}
.leader-aff {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.45;
}

.board-more {
  margin-top: 36px;
  display: flex;
  justify-content: flex-start;
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; gap: 32px; } }

.contact-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 36px 34px;
}
.contact-row { padding: 14px 0; border-bottom: 1px dashed var(--line); }
.contact-row:last-child { border-bottom: 0; }
.contact-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.contact-value {
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--ink);
  line-height: 1.5;
}
.contact-value a { border-bottom: 1px solid var(--line-2); }
.contact-value a:hover { border-color: var(--gold); }

/* ---------- Final CTA band ---------- */

.cta-band {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(56px, 8vw, 96px) 0;
}
.cta-band .container { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 800px) { .cta-band .container { grid-template-columns: 1fr; gap: 32px; } }
.cta-band h2 {
  color: var(--paper);
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.15;
  font-weight: 400;
  letter-spacing: -0.015em;
}
.cta-band p { color: rgba(250, 247, 242, 0.72); margin-top: 14px; max-width: 520px; }
.cta-band .btn-primary { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.cta-band .btn-primary:hover { background: var(--gold-soft); color: var(--ink); border-color: var(--gold-soft); }
.cta-band .btn-outline { color: var(--paper); border-color: rgba(250, 247, 242, 0.4); }
.cta-band .btn-outline:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.cta-band-actions { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
@media (max-width: 800px) { .cta-band-actions { align-items: stretch; } }

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

footer.site {
  background: var(--paper);
  border-top: 1px solid var(--line);
  padding: 48px 0 32px;
  font-size: 14px;
  color: var(--ink-soft);
}
footer.site .container {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}
@media (max-width: 800px) { footer.site .container { grid-template-columns: 1fr; gap: 28px; } }
footer .foot-title {
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--ink);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}
footer .foot-list { display: flex; flex-direction: column; gap: 8px; }
footer .foot-list a { color: var(--ink-soft); }
footer .foot-list a:hover { color: var(--gold); }
footer .foot-bottom {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 12.5px;
  color: var(--muted);
  flex-wrap: wrap;
}

/* ---------- Inner page hero ---------- */

.page-hero {
  padding: clamp(60px, 8vw, 96px) 0 clamp(36px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.page-hero .hero-seal { top: -80px; right: -100px; width: clamp(300px, 32vw, 440px); height: clamp(300px, 32vw, 440px); opacity: 0.05; }
.page-hero > .container { position: relative; z-index: 1; }
.page-hero .eyebrow { margin-bottom: 18px; }
.page-hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.08;
  font-weight: 400;
  letter-spacing: -0.02em;
  max-width: 900px;
  margin-bottom: 18px;
}
.page-hero .lede {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(16px, 1.4vw, 19px);
  color: var(--ink-soft);
  max-width: 720px;
  line-height: 1.55;
}

/* ---------- Executive Board page ---------- */

.board-section { padding: clamp(48px, 6vw, 80px) 0; border-bottom: 1px solid var(--line); }
.board-section:last-of-type { border-bottom: 0; }

.board-heading {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 60px;
  margin-bottom: 32px;
  align-items: baseline;
}
@media (max-width: 800px) { .board-heading { grid-template-columns: 1fr; gap: 8px; } }

.board-heading h2 {
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 400;
  letter-spacing: -0.01em;
}
.board-heading .eyebrow { margin-bottom: 6px; }
.board-heading .deck { font-size: 15.5px; color: var(--ink-soft); max-width: 620px; }

.member-table {
  border-top: 1px solid var(--line);
}
.member-row {
  display: grid;
  grid-template-columns: 40px 1.3fr 1.3fr 1fr 100px;
  gap: 24px;
  padding: 22px 4px;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
  transition: background .15s ease;
}
.member-row:hover { background: rgba(255,255,255,0.5); }

.member-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
  padding-top: 4px;
}
.member-name {
  font-family: var(--font-serif);
  font-size: 19px;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.3;
}
.member-role {
  font-size: 14px;
  color: var(--gold);
  font-weight: 500;
  letter-spacing: 0.01em;
}
.member-aff {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.4;
}
.member-country {
  font-size: 13px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: right;
  font-family: var(--font-sans);
}

@media (max-width: 900px) {
  .member-row {
    grid-template-columns: 32px 1fr;
    gap: 4px 18px;
    padding: 20px 4px;
  }
  .member-idx { grid-row: span 4; }
  .member-name { grid-column: 2; }
  .member-role { grid-column: 2; }
  .member-aff { grid-column: 2; }
  .member-country { grid-column: 2; text-align: left; margin-top: 2px; }
}

/* ---------- Ethics page ---------- */

.ethics-body {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 60px;
  padding: clamp(56px, 7vw, 88px) 0;
}
@media (max-width: 900px) { .ethics-body { grid-template-columns: 1fr; gap: 24px; } }

.ethics-toc {
  position: sticky;
  top: 100px;
  align-self: start;
  font-size: 13px;
}
.ethics-toc .eyebrow { margin-bottom: 12px; }
.ethics-toc a {
  display: block;
  padding: 8px 0;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}
.ethics-toc a:hover { color: var(--ink); }

.ethics-content h2 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 500;
  color: var(--ink);
  margin-top: 44px;
  margin-bottom: 12px;
  letter-spacing: -0.005em;
  scroll-margin-top: 110px;
}
.ethics-content h2:first-of-type { margin-top: 0; }
.ethics-content p {
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--ink-2);
  margin: 0 0 14px;
  max-width: 720px;
}
.ethics-content ul {
  padding-left: 20px;
  margin: 8px 0 16px;
}
.ethics-content li {
  font-size: 16px;
  color: var(--ink-2);
  line-height: 1.7;
  margin-bottom: 4px;
  padding-left: 6px;
}
.ethics-content li::marker { color: var(--gold); }

/* ---------- Small helpers ---------- */

.reveal { opacity: 0; transform: translateY(12px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

::selection { background: var(--gold-soft); color: var(--ink); }