/* ============================================================
   childrenlungs.com — shared stylesheet
   Dr Omi Narayan · American Hospital Dubai
   ============================================================ */

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

:root {
  --navy:  #0A2342;
  --gold:  #C8A96E;
  --teal:  #007B8A;
  --light: #f8fafc;
  --border:#e5e5e5;
  --text:  #1a1a1a;
  --muted: #555555;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.7;
}

/* ---- Top bar ---- */
.top-bar {
  background: var(--navy);
  color: #fff;
  padding: 8px 24px;
  font-size: 13px;
  text-align: center;
}
.top-bar a { color: var(--gold); text-decoration: none; font-weight: 500; }

/* ---- Nav ---- */
nav {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.logo { font-weight: 700; color: var(--navy); font-size: 16px; text-decoration: none; }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a { color: var(--text); text-decoration: none; font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--teal); }
.nav-links a.active { color: var(--teal); }
.nav-cta {
  background: var(--teal);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 13px !important;
}
.nav-cta:hover { background: #005f6a !important; color: #fff !important; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all 0.3s;
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 60px;
  left: 0; right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  z-index: 199;
  flex-direction: column;
  padding: 8px 0 16px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 12px 24px;
  color: var(--text);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  border-bottom: 0.5px solid var(--border);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { background: var(--light); color: var(--teal); }

/* ---- Utility ---- */
.eyebrow {
  color: var(--teal);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}
.section-title {
  font-size: 36px;
  color: var(--navy);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-title em { color: var(--gold); font-style: normal; }
.section-intro { font-size: 17px; color: var(--muted); max-width: 680px; margin-bottom: 48px; }

.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s;
}
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: #005f6a; }
.btn-secondary { background: #fff; color: var(--navy); border: 1.5px solid var(--navy); }
.btn-secondary:hover { background: var(--navy); color: #fff; }
.btn-gold { background: var(--gold); color: var(--navy); }
.btn-gold:hover { background: #b8985d; }

/* ---- Footer ---- */
footer {
  background: #051528;
  color: #c5d1e3;
  padding: 48px 24px 32px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 0.5px solid rgba(255,255,255,0.1);
}
.footer-brand .footer-name { color: #fff; font-size: 18px; font-weight: 700; display: block; margin-bottom: 8px; }
.footer-brand p { font-size: 13px; line-height: 1.6; color: #a0b0c5; }
.footer-col h4 { color: #fff; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 14px; }
.footer-col a { display: block; color: #a0b0c5; text-decoration: none; font-size: 13px; margin-bottom: 8px; }
.footer-col a:hover { color: var(--gold); }
.footer-bottom { max-width: 1100px; margin: 24px auto 0; display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: #6b7c93; flex-wrap: wrap; gap: 8px; }
.footer-bottom a { color: var(--gold); text-decoration: none; }

/* ---- CTA band ---- */
.cta-band {
  background: var(--navy);
  color: #fff;
  padding: 64px 24px;
  text-align: center;
}
.cta-band h2 { font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.cta-band p { color: #c5d1e3; margin-bottom: 28px; font-size: 16px; }
.cta-group { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---- Breadcrumb ---- */
.breadcrumb-bar {
  background: var(--light);
  border-bottom: 0.5px solid var(--border);
  padding: 10px 24px;
  font-size: 13px;
  color: var(--muted);
}
.breadcrumb-bar a { color: var(--teal); text-decoration: none; }
.breadcrumb-inner { max-width: 1100px; margin: 0 auto; }

/* ---- Blog article ---- */
.article-hero {
  background: linear-gradient(180deg, var(--light) 0%, #fff 100%);
  padding: 56px 24px 40px;
  text-align: center;
}
.article-hero h1 {
  font-size: 40px;
  color: var(--navy);
  line-height: 1.2;
  max-width: 800px;
  margin: 0 auto 16px;
  font-weight: 700;
}
.article-hero .subtitle {
  font-size: 18px;
  color: var(--muted);
  max-width: 680px;
  margin: 0 auto 24px;
}
.author-strip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  background: #fff;
  border-radius: 50px;
  border: 1px solid var(--border);
  margin-top: 8px;
}
.author-strip img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.author-strip-text { text-align: left; font-size: 12px; color: var(--muted); }
.author-strip-text strong { color: var(--navy); font-size: 13px; display: block; }

article.blog-body {
  max-width: 740px;
  margin: 0 auto;
  padding: 40px 24px 80px;
  font-size: 17px;
}
article.blog-body > .lede {
  font-size: 19px;
  color: #333;
  font-style: italic;
  border-left: 4px solid var(--gold);
  padding: 4px 0 4px 20px;
  margin: 0 0 32px;
}
article.blog-body p { margin-bottom: 20px; color: #2a2a2a; }
article.blog-body h2 { font-size: 27px; color: var(--navy); margin: 40px 0 14px; font-weight: 700; line-height: 1.3; }
article.blog-body h3 { font-size: 20px; color: var(--teal); margin: 28px 0 10px; font-weight: 600; }
article.blog-body ul, article.blog-body ol { margin: 0 0 24px; padding-left: 28px; }
article.blog-body li { margin-bottom: 10px; color: #2a2a2a; }
article.blog-body ol li strong { color: var(--navy); }

.callout {
  background: #fef7e6;
  border-left: 4px solid var(--gold);
  padding: 18px 22px;
  border-radius: 0 8px 8px 0;
  margin: 28px 0;
  font-size: 15px;
}
.callout strong { color: var(--navy); }
.callout-red { background: #fef0f0; border-left-color: #c92a2a; }
.callout-red strong { color: #c92a2a; }
.callout-teal { background: #e8f5f7; border-left-color: var(--teal); }
.callout-teal strong { color: var(--teal); }

.author-bio {
  background: var(--light);
  border-radius: 12px;
  padding: 24px;
  margin: 40px 0 20px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.author-bio img { width: 76px; height: 76px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.author-bio-text strong { color: var(--navy); font-size: 16px; display: block; margin-bottom: 6px; }
.author-bio-text p { font-size: 14px; color: var(--muted); margin-bottom: 10px; line-height: 1.6; }
.author-bio-text a { color: var(--teal); font-weight: 600; text-decoration: none; font-size: 14px; }

.download-banner {
  background: #e8f5f7;
  border: 1.5px solid var(--teal);
  border-radius: 10px;
  padding: 18px 22px;
  margin: 28px 0;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.download-banner-text strong { display: block; color: var(--navy); font-size: 14px; margin-bottom: 2px; }
.download-banner-text span { color: var(--muted); font-size: 13px; }

/* ---- Responsive ---- */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section-title { font-size: 28px; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 640px) {
  .article-hero h1 { font-size: 28px; }
  .article-hero .subtitle { font-size: 15px; }
  article.blog-body { font-size: 16px; }
  article.blog-body h2 { font-size: 22px; }
  article.blog-body h3 { font-size: 18px; }
  .author-bio { flex-direction: column; align-items: center; text-align: center; }
}