:root {
  --orange: #D06B00;
  --orange-light: #D4600A;
  --charcoal: #111111;
  --slate: #1B2A3B;
  --slate-mid: #243447;
  --teal: #005F73;
  --teal-light: #0A7A91;
  --warm-gray: #F5F3F0;
  --off-white: #FAF9F7;
  --white: #FFFFFF;
  --border: #E2DDD8;
  --text-primary: #1a1a1a;
  --text-secondary: #555;
  --text-muted: #696969;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', -apple-system, sans-serif; color: var(--text-primary); background: var(--white); overflow-x: hidden; }

/* ── SYSTEM BAR ── */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #0d1117 0%, #111111 50%, #1a1a2e 100%);
  color: #fff;
  padding: 4.5rem 3rem 4rem;
}
.hero-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: auto 1fr; gap: 3rem; align-items: start; }
@media (max-width: 740px) { .hero-inner { grid-template-columns: 1fr; } }
.hero-image-wrap {
  width: 200px; height: 200px; border-radius: 50%;
  overflow: hidden; flex-shrink: 0;
  background: linear-gradient(135deg, var(--warm-gray) 0%, #e8e3dd 100%);
  display: flex; align-items: center; justify-content: center;
  border: 3px solid var(--border);
}
.hero-image-icon { font-size: 5rem; opacity: 0.7; }
.hero-label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--orange); margin-bottom: 0.5rem; }
.hero-title { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 800; line-height: 1.15; margin-bottom: 1.25rem; color: #ffffff; }
.hero-body p { font-size: 1rem; line-height: 1.75; color: rgba(255,255,255,0.75); margin-bottom: 1rem; }
.hero-body p:last-child { margin-bottom: 0; }
.hero-body a { color: var(--orange); text-decoration: none; }
.hero-body a:hover { text-decoration: underline; }

/* ── SECTION BASE ── */
.section { padding: 3.5rem 2rem; }
.section-alt { background: var(--warm-gray); }
.section-inner { max-width: 1100px; margin: 0 auto; }
.section-rule {
  border: none; border-top: 3px solid var(--teal);
  margin: 0.6rem 0 2rem; max-width: 100%;
}
.section-h2 { font-size: clamp(1.4rem, 2.5vw, 1.85rem); font-weight: 800; color: var(--text-primary); }
.section-h3 { font-size: 0.82rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 1.25rem; }

/* ── PRINCIPLES GRID ── */
.principles-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
@media (max-width: 760px) { .principles-grid { grid-template-columns: repeat(2, 1fr); } }
.principle-item { text-align: center; }
.principle-icon-wrap {
  width: 70px; height: 70px; border-radius: 50%;
  background: var(--orange); margin: 0 auto 0.6rem;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
}
.principle-bar {
  width: 100%; height: 6px; background: var(--orange);
  border-radius: 3px; margin-bottom: 1rem;
}
.principle-title { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.5rem; color: var(--text-primary); }
.principle-desc { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6; }

/* ── TWO-COL LAYOUT ── */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
@media (max-width: 760px) { .two-col { grid-template-columns: 1fr; } }
.col-title { font-size: 1.2rem; font-weight: 800; color: var(--text-primary); margin-bottom: 0.15rem; }
.col-subtitle { font-size: 0.82rem; font-weight: 600; color: var(--text-muted); margin-bottom: 0; padding-bottom: 0.6rem; border-bottom: 3px solid var(--teal); }

/* ── POLICY CARDS ── */
.policy-list { display: flex; flex-direction: column; gap: 1px; margin-top: 1.25rem; }
.policy-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: 0; padding: 1.1rem 1.25rem;
  transition: border-color 0.15s;
}
.policy-card:first-child { border-radius: 8px 8px 0 0; }
.policy-card:last-child { border-radius: 0 0 8px 8px; }
.policy-card:hover { border-color: var(--orange); z-index: 1; position: relative; }
.policy-card-title {
  font-size: 0.9rem; font-weight: 700; color: var(--orange);
  text-decoration: none; display: flex; align-items: center; gap: 0.3rem;
  margin-bottom: 0.4rem;
}
.policy-card-title:hover { text-decoration: underline; }
.policy-card-title .ext { font-size: 0.72rem; opacity: 0.7; }
.policy-card-desc { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6; }
.policy-card-desc a { color: var(--orange); text-decoration: none; }
.policy-card-desc a:hover { text-decoration: underline; }

/* ── INTEGRATING AI (right column) ── */
.ai-context-blocks { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 1.25rem; }
.ai-context-block {
  background: var(--white); border: 1px solid var(--border);
  border-radius: 8px; padding: 1.25rem;
}
.ai-context-title { font-size: 0.92rem; font-weight: 700; color: var(--text-primary); margin-bottom: 0.5rem; }
.ai-context-desc { font-size: 0.83rem; color: var(--text-secondary); line-height: 1.65; }

/* ── ACADEMIC RESOURCES ── */
.resource-list { display: flex; flex-direction: column; gap: 1px; margin-top: 1.25rem; }
.resource-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: 0; padding: 1.1rem 1.25rem;
}
.resource-card:first-child { border-radius: 8px 8px 0 0; }
.resource-card:last-child { border-radius: 0 0 8px 8px; }
.resource-card-title {
  font-size: 0.9rem; font-weight: 700; color: var(--orange);
  text-decoration: none; display: inline-flex; align-items: center; gap: 0.3rem;
  margin-bottom: 0.4rem;
}
.resource-card-title:hover { text-decoration: underline; }
.resource-card-desc { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6; }
.resource-card-desc a { color: var(--orange); text-decoration: none; }
.resource-card-desc a:hover { text-decoration: underline; }

/* ── GOVERNANCE SECTION ── */
.governance-split { display: grid; grid-template-columns: auto 1fr; gap: 2.5rem; align-items: start; }
@media (max-width: 640px) { .governance-split { grid-template-columns: 1fr; } }
.governance-img-wrap {
  width: 220px; flex-shrink: 0;
  border-radius: 8px; overflow: hidden;
  background: #2a2a2a;
  display: flex; align-items: center; justify-content: center;
  height: 175px;
}
.governance-img-icon { font-size: 5rem; }
.governance-body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.6rem; }
.governance-body p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 1.1rem; }
.governance-bullets { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; padding: 0; }
.governance-bullets li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.88rem;
  color: var(--text-primary);
  line-height: 1.65;
}
.governance-bullets li::before {
  content: '•';
  color: var(--orange);
  font-size: 1.1rem;
  position: absolute;
  left: 0;
  top: 0.05em;
}
.governance-bullets li strong { font-weight: 700; }

/* ── CALLOUT BAND ── */
.callout-band {
  background: var(--slate);
  padding: 3rem 2rem;
  color: #fff;
}
.callout-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: center; }
@media (max-width: 640px) { .callout-inner { grid-template-columns: 1fr; } }
.callout-label { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #f5a461; margin-bottom: 0.5rem; }
.callout-title { font-size: 1.55rem; font-weight: 800; margin-bottom: 0.75rem; }
.callout-body { font-size: 0.9rem; color: rgba(255,255,255,0.7); line-height: 1.7; }
.callout-links { display: flex; flex-direction: column; gap: 0.75rem; }
.callout-link {
  display: flex; align-items: flex-start; gap: 0.85rem;
  background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px; padding: 0.9rem 1.1rem;
  text-decoration: none; color: rgba(255,255,255,0.85);
  transition: all 0.15s;
}
.callout-link:hover { background: rgba(255,255,255,0.13); color: #fff; }
.callout-link-icon { font-size: 1.2rem; flex-shrink: 0; }
.callout-link-text strong { display: block; font-size: 0.85rem; font-weight: 700; margin-bottom: 0.2rem; }
.callout-link-text span { font-size: 0.78rem; color: rgba(255,255,255,0.55); line-height: 1.4; }

/* ── FOOTER ── */
@media (max-width: 680px) { .footer-top { grid-template-columns: 1fr 1fr; } }
.footer-brand-ut { font-size: 0.65rem; font-weight: 700; color: var(--orange); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 0.3rem; }
.footer-col a { display: block; color: rgba(255,255,255,0.55); text-decoration: none; padding: 0.22rem 0; transition: color 0.15s; }
.footer-col a:hover { color: rgba(255,255,255,0.9); }
/* ── ANIMATIONS ── */
.fade-up { opacity: 0; transform: translateY(20px); transition: opacity 0.5s ease, transform 0.5s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }