/* Dr. Eye MD — Internal Medicine Interview Guide site
   Shared design system: navy/gold, Georgia headlines, self-contained. */

:root {
  --navy: #1b2a4a;
  --gold: #c9a227;
  --gold-dark: #a8871f;
  --bg: #faf9f7;
  --ink: #232a35;
  --muted: #5b6472;
  --card: #ffffff;
  --line: #e7e2d8;
  --navy-deep: #121d33;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 17px;
}

h1, h2, h3, h4 {
  font-family: Georgia, 'Times New Roman', serif;
  line-height: 1.25;
  color: var(--navy);
  margin-bottom: 0.6em;
}

h1 { font-size: 2.1rem; }
h2 { font-size: 1.6rem; margin-top: 2em; }
h3 { font-size: 1.25rem; margin-top: 1.5em; }

p { margin-bottom: 1.1em; }
ul, ol { margin: 0 0 1.2em 1.4em; }
li { margin-bottom: 0.55em; }
a { color: var(--navy); }
img { max-width: 100%; height: auto; }

.container { max-width: 1060px; margin: 0 auto; padding: 0 1.25rem; }
.container-narrow { max-width: 760px; margin: 0 auto; padding: 0 1.25rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  border-bottom: 3px solid var(--gold);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1.25rem;
  max-width: 1060px;
  margin: 0 auto;
}
.site-title {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.25rem;
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  white-space: nowrap;
}
.site-title span { color: var(--gold); }
.main-nav { display: flex; align-items: center; gap: 1.1rem; }
.main-nav a.nav-link {
  color: #d7dce6;
  text-decoration: none;
  font-size: 0.95rem;
}
.main-nav a.nav-link:hover { color: var(--gold); }
.btn {
  display: inline-block;
  padding: 0.75rem 1.6rem;
  border-radius: 4px;
  font-weight: 700;
  text-decoration: none;
  font-size: 1rem;
  border: 2px solid transparent;
  transition: background 0.15s ease, color 0.15s ease;
}
.btn-gold {
  background: var(--gold);
  color: var(--navy);
  border-color: var(--gold);
}
.btn-gold:hover { background: var(--gold-dark); border-color: var(--gold-dark); }
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: #fff;
}
.btn-outline:hover { background: rgba(255,255,255,0.12); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-deep); }
.btn-small { padding: 0.5rem 1rem; font-size: 0.9rem; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 60%, #2a3d63 100%);
  color: #fff;
  padding: 4rem 1.25rem 3.5rem;
}
.hero h1 {
  color: #fff;
  font-size: 2.4rem;
  max-width: 760px;
}
.hero .accent {
  width: 72px;
  height: 4px;
  background: var(--gold);
  margin: 1rem 0 1.5rem;
}
.hero p.lead {
  font-size: 1.2rem;
  color: #d7dce6;
  max-width: 700px;
  margin-bottom: 1.6rem;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 1.6rem; }
.hero-note { margin-top: 1.2rem; font-size: 0.9rem; color: #aeb7c9; }

/* Page hero (interior pages) */
.page-hero {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 60%, #2a3d63 100%);
  color: #fff;
  padding: 2.6rem 1.25rem 2.2rem;
}
.page-hero h1 { color: #fff; font-size: 2rem; }
.page-hero .accent { width: 64px; height: 4px; background: var(--gold); margin: 0.9rem 0 1.2rem; }
.page-hero p { color: #d7dce6; max-width: 720px; margin-bottom: 0; }

/* ---------- Sections ---------- */
.section { padding: 3rem 0; }
.section-alt { background: var(--card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* ---------- Article grid ---------- */
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 1.6rem;
}
.article-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 4px solid var(--gold);
  border-radius: 6px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}
.article-card h3 { margin-top: 0; font-size: 1.15rem; }
.article-card h3 a { color: var(--navy); text-decoration: none; }
.article-card h3 a:hover { color: var(--gold-dark); }
.article-card p { color: var(--muted); font-size: 0.97rem; flex: 1; }
.article-card .card-link {
  color: var(--gold-dark);
  font-weight: 700;
  text-decoration: none;
  font-size: 0.95rem;
}
.article-card .card-link:hover { text-decoration: underline; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--navy);
  color: #fff;
  padding: 3.2rem 1.25rem;
  text-align: center;
}
.cta-band h2 { color: #fff; margin-top: 0; font-size: 1.8rem; }
.cta-band .accent { width: 64px; height: 4px; background: var(--gold); margin: 0.9rem auto 1.4rem; }
.cta-band p { color: #d7dce6; max-width: 640px; margin: 0 auto 1.6rem; }
.cta-band .cta-buttons { display: flex; flex-wrap: wrap; gap: 0.9rem; justify-content: center; }
.cta-band .secondary-note { margin-top: 1.1rem; font-size: 0.95rem; color: #aeb7c9; }

/* ---------- Author box ---------- */
.author-box {
  display: flex;
  gap: 1.4rem;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.8rem;
  margin-top: 1.6rem;
}
.monogram {
  flex: 0 0 auto;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold);
  border: 3px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.7rem;
  font-weight: bold;
  letter-spacing: 1px;
}
.author-box h3 { margin-top: 0; }
.author-box p { color: var(--muted); margin-bottom: 0.7em; font-size: 0.99rem; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-deep);
  color: #aeb7c9;
  padding: 2.6rem 1.25rem 2rem;
  font-size: 0.9rem;
}
.footer-inner { max-width: 1060px; margin: 0 auto; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.2rem; margin-bottom: 1.4rem; }
.footer-nav a { color: #d7dce6; text-decoration: none; }
.footer-nav a:hover { color: var(--gold); }
.site-footer .small-print { font-size: 0.82rem; color: #8b95a9; line-height: 1.6; }

/* ---------- Article body ---------- */
.article-body { padding: 2.4rem 0 3rem; }
.article-body .kicker {
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.8rem;
  color: var(--gold-dark);
  font-weight: 700;
  margin-bottom: 0.6rem;
}
.article-body time { color: var(--muted); font-size: 0.9rem; }
.article-body ul.checklist { list-style: none; margin-left: 0; }
.article-body ul.checklist li {
  padding-left: 1.8rem;
  position: relative;
}
.article-body ul.checklist li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--gold-dark);
  font-weight: bold;
}
.callout {
  background: #fffbeF;
  border-left: 4px solid var(--gold);
  padding: 1.2rem 1.4rem;
  margin: 1.6rem 0;
  border-radius: 0 6px 6px 0;
}
.callout p { margin-bottom: 0.6em; }
.callout p:last-child { margin-bottom: 0; }

/* ---------- Resource cards ---------- */
.resource-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 4px solid var(--gold);
  border-radius: 6px;
  padding: 1.5rem;
}
.resource-card h3 { margin-top: 0; font-size: 1.12rem; }
.resource-card .tag {
  display: inline-block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--gold-dark);
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.resource-card p { color: var(--muted); font-size: 0.96rem; }
.resource-card a.product-link {
  color: var(--gold-dark);
  font-weight: 700;
  text-decoration: none;
}
.resource-card a.product-link:hover { text-decoration: underline; }
.disclosure { font-size: 0.88rem; color: var(--muted); margin-top: 2rem; }

/* ---------- Takeaways ---------- */
.takeaways { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 1.6rem; }
.takeaway {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1.5rem;
}
.takeaway .number {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 2rem;
  color: var(--gold);
  font-weight: bold;
  line-height: 1;
  margin-bottom: 0.6rem;
}
.takeaway h3 { font-size: 1.1rem; margin-top: 0; }
.takeaway p { color: var(--muted); font-size: 0.96rem; margin-bottom: 0; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 1.6rem; }
.two-col h3 { margin-top: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .article-grid { grid-template-columns: 1fr; }
  .takeaways { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.9rem; }
  .hero { padding: 3rem 1.25rem 2.6rem; }
  .header-inner { flex-wrap: wrap; }
  .main-nav { flex-wrap: wrap; gap: 0.8rem; }
  .author-box { flex-direction: column; }
}

.sister-nav{margin:14px 0 4px;font-size:.9rem;color:inherit;opacity:.92}
.sister-nav .sister-label{display:block;margin-bottom:6px;font-weight:600}
.sister-nav a{margin:0 10px 6px 0;display:inline-block}