/* Study in China MBBS — design system v2
   Reference: Oxford University site (academic trust, serif display) ×
   Gov.uk Design System (clear hierarchy) × Coursera (warm edtech cards).
   Audience: Pakistani students & parents. Mobile-first. */

@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,500;0,600;0,700;1,500&family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --ink: #0c1b33;          /* oxford navy */
  --ink-soft: #24365c;
  --muted: #2f3c52;
  --line: #dde3ee;
  --paper: #ffffff;
  --wash: #f6f5f1;         /* warm ivory */
  --accent: #0d7a6f;       /* deep teal */
  --accent-dark: #0a5f57;
  --gold: #b8860b;         /* academic gold */
  --gold-soft: #f3e9d3;
  --warn: #a3123f;
  --ok: #166534;
  --max: 72rem;
  --shadow-sm: 0 1px 2px rgba(12,27,51,.06), 0 2px 8px rgba(12,27,51,.05);
  --shadow-md: 0 2px 6px rgba(12,27,51,.07), 0 12px 28px rgba(12,27,51,.09);
  --shadow-lg: 0 4px 10px rgba(12,27,51,.08), 0 20px 48px rgba(12,27,51,.13);
  --radius: 20px;
  --serif: "Lora", "Noto Serif", Georgia, "Times New Roman", serif;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
::selection { background: rgba(13,122,111,.18); }

a {
  color: var(--accent-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
  transition: color .15s ease;
}
a:hover { color: var(--accent); }
a:focus-visible { outline: 3px solid rgba(13,122,111,.35); outline-offset: 2px; border-radius: 4px; }

/* ---------- header ---------- */
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--ink); color: #fff;
  padding: .75rem 1rem; z-index: 10;
}
.skip-link:focus { left: 1rem; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: .85rem 1rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
}
.brand {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.22rem;
  letter-spacing: -.01em;
  color: var(--ink);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: .45rem;
}
.brand::before {
  content: "";
  width: 10px; height: 10px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--gold), var(--accent));
  box-shadow: 0 0 0 3px rgba(13,122,111,.12);
}
.brand span { color: var(--accent); }
.nav { display: flex; gap: .35rem; flex-wrap: wrap; font-size: .92rem; font-weight: 500; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  padding: .42rem .8rem;
  border-radius: 999px;
  transition: background .15s ease, color .15s ease;
}
.nav a:hover { color: var(--ink); background: var(--wash); }

main { max-width: var(--max); margin: 0 auto; padding: 0 1rem 4rem; }

/* ---------- hero (full-bleed band) ---------- */
.hero {
  position: relative;
  margin: 0 calc(50% - 50vw);
  padding: 5.5rem calc(50vw - 50% + 1rem) 4.5rem;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 2.5rem;
  align-items: end;
  color: #f4f6fb;
  background:
    radial-gradient(ellipse 60% 90% at 85% 10%, rgba(184,134,11,.20), transparent 60%),
    radial-gradient(ellipse 50% 70% at 10% 90%, rgba(13,122,111,.35), transparent 65%),
    linear-gradient(160deg, #0c1b33 0%, #12264d 55%, #0a5f57 130%);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.10) 1px, transparent 1.4px);
  background-size: 22px 22px;
  pointer-events: none;
}
.hero > * { position: relative; z-index: 1; }
.eyebrow {
  color: #e7c56b;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .78rem;
  margin: 0 0 .9rem;
}
.article-body .eyebrow { color: var(--accent-dark); }

h1, h2, h3 { line-height: 1.16; letter-spacing: -.02em; margin: 0 0 1rem; }
h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2.3rem, 5.2vw, 4.2rem);
  letter-spacing: -.025em;
}
h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  margin-top: 2.6rem;
}
h3 { font-size: 1.14rem; margin-top: 1.7rem; font-weight: 700; }
.lead {
  font-size: clamp(1.06rem, 2vw, 1.3rem);
  max-width: 46rem;
}
.hero .lead { color: rgba(244,246,251,.92); }
.article-body .lead { color: #24334d; }

/* ---------- panels & cards ---------- */
.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}
.panel h2, .panel h3 { margin-top: 0; }

/* hero band sets light text for the whole section; cards inside must stay dark */
.hero .panel { color: var(--ink); }
.hero .panel p { color: var(--muted); }
.hero .panel a { color: var(--accent-dark); }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
  margin-top: 1.6rem;
}
.card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem 1.35rem 1.5rem;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(13,122,111,.35);
}
.card h3 { margin-top: 0; }
.card p { color: var(--muted); margin-bottom: .9rem; }
.card a { font-weight: 600; }

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: .2rem .7rem;
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
  background: #e3f2ef;
  color: var(--accent-dark);
  margin-bottom: .85rem;
}
.badge.warn { background: #fdeef1; color: var(--warn); }
.badge.ok { background: #e9f7ef; color: var(--ok); }

/* ---------- notices ---------- */
.notice {
  border-left: 4px solid var(--accent);
  background: #eef7f5;
  padding: 1.05rem 1.2rem;
  border-radius: 0 16px 16px 0;
  color: #0f4a44;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-sm);
}
.notice.warn { border-left-color: var(--warn); background: #fdf0f3; color: #7c1031; }
.notice strong { color: inherit; }

/* ---------- article ---------- */
.article-meta {
  color: var(--muted);
  font-size: .93rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1rem;
  margin: .4rem 0 1.6rem;
}
.article-body { max-width: 52rem; }
.article-body h2 { padding-bottom: .3rem; }
.article-body ul, .article-body ol { padding-left: 1.35rem; }
.article-body li { margin: .5rem 0; }
.article-body li::marker { color: var(--accent); font-weight: 700; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: .96rem;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.article-body th, .article-body td {
  border: 1px solid var(--line);
  padding: .8rem .9rem;
  text-align: left;
  vertical-align: top;
}
.article-body th {
  background: var(--ink);
  color: #f4f6fb;
  font-weight: 700;
  border-color: var(--ink);
}

/* ---------- faq ---------- */
.faq details {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: .95rem 1.1rem;
  margin: .75rem 0;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: border-color .15s ease;
}
.faq details[open] { border-color: rgba(13,122,111,.4); }
.faq summary { cursor: pointer; font-weight: 700; }
.faq summary::marker { color: var(--accent); }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  background: var(--wash);
  color: var(--muted);
  padding: 2.2rem 1rem 3rem;
  font-size: .92rem;
}
.footer p { max-width: var(--max); margin: 0 auto; }

/* ---------- CTA ---------- */
.agent-cta {
  position: relative;
  max-width: 880px;
  margin: 34px auto 0;
  padding: 26px 28px;
  border-radius: 22px;
  color: #f4f6fb;
  background:
    radial-gradient(ellipse 70% 120% at 90% -20%, rgba(184,134,11,.28), transparent 60%),
    linear-gradient(150deg, #0c1b33 0%, #123055 60%, #0a5f57 140%);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.agent-cta .cta-sentence {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 1.28rem;
  font-weight: 700;
}
.agent-cta .copy-line {
  margin: 0 0 14px;
  color: rgba(244,246,251,.88);
  font-size: .93rem;
}
.agent-cta .code-row { margin: 0 0 10px; }
.agent-cta .code-chip {
  display: inline-block;
  padding: 12px 20px;
  border: 1px solid rgba(231,197,107,.55);
  border-radius: 12px;
  background: rgba(231,197,107,.12);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: #f0d896;
  cursor: copy;
  -webkit-user-select: all;
  user-select: all;
}
.agent-cta .cta-open { margin: 0; }
.agent-cta .cta-open a {
  color: #cfe3df;
  font-weight: 600;
  text-decoration-color: rgba(207,227,223,.5);
}
.agent-cta .cta-open a:hover { color: #fff; }

.agent-cta .fine {
  margin: 14px 0 0;
  color: rgba(244,246,251,.78);
  font-size: .82rem;
}

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 3.6rem 1rem 3rem;
    gap: 1.6rem;
  }
  .grid { grid-template-columns: 1fr; }
  .header-inner { align-items: flex-start; flex-direction: column; gap: .5rem; }
  .nav a { padding: .38rem .65rem; }
}