:root {
  --primary: #4054B2;
  --primary-dark: #2f3f8f;
  --accent: #3878FF;
  --bg: #FFFFFF;
  --surface: #F5F7FC;
  --text: #1A2332;
  --text-light: #5A6B7E;
  --border: #E2E8F0;
  --radius: 14px;
  --max-width: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Heebo', system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}

img { max-width: 100%; display: block; }

a { color: var(--primary); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-header .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--primary);
  text-decoration: none;
}
.site-header .brand img { height: 40px; width: auto; }
.site-header .call-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  white-space: nowrap;
}
.site-header .call-btn:hover { background: var(--primary-dark); }
.site-header .call-btn svg { width: 18px; height: 18px; flex: 0 0 18px; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 64px 0 56px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 16px;
}
.hero .tagline {
  font-size: 1.15rem;
  font-weight: 500;
  opacity: 0.95;
  margin-bottom: 8px;
}
.hero .intro-answer {
  max-width: 640px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
  opacity: 0.95;
}
.hero .cta-row {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.hero .btn-call {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  color: var(--primary-dark);
  padding: 16px 36px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.25rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.hero .btn-call:hover { transform: translateY(-2px); }
.hero .btn-call svg { width: 22px; height: 22px; flex: 0 0 22px; }
.hero .service-badge {
  margin-top: 24px;
  font-weight: 600;
  font-size: 1rem;
  opacity: 0.9;
}

/* Sections */
.section { padding: 56px 0; }
.section h2 {
  font-size: 1.8rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 12px;
  color: var(--primary);
}
.section .section-sub {
  text-align: center;
  color: var(--text-light);
  max-width: 620px;
  margin: 0 auto 36px;
}
.section.surface { background: var(--surface); }

/* Article cards / index grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.article-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s, transform 0.2s;
}
.article-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.08); transform: translateY(-2px); }
.article-card img { aspect-ratio: 16/10; object-fit: cover; width: 100%; }
.article-card .article-card-body { padding: 18px 20px; flex: 1; display: flex; flex-direction: column; }
.article-card .article-date { color: var(--text-light); font-size: 0.85rem; margin-bottom: 8px; }
.article-card h3 { font-size: 1.15rem; margin-bottom: 8px; color: var(--primary); }
.article-card p { color: var(--text-light); font-size: 1rem; flex: 1; }
.article-card .read-more { margin-top: 12px; font-weight: 700; color: var(--primary); }

/* Article page body */
.article-page { padding: 40px 0 64px; }
.article-page .article-hero-img {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 28px;
}
.article-page .article-meta { color: var(--text-light); font-size: 0.9rem; margin-bottom: 8px; }
.article-page h1 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); color: var(--primary); margin-bottom: 20px; }
.article-body { max-width: 760px; margin: 0 auto; }
.article-body p { margin-bottom: 18px; font-size: 1.05rem; }
.article-body ul { margin: 0 0 18px 0; padding-inline-start: 24px; }
.article-body li { margin-bottom: 8px; }
.article-body h2, .article-body h3 { color: var(--primary); margin: 28px 0 14px; }

/* FAQ accordion */
.faq { max-width: 760px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-item summary {
  padding: 16px 20px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--surface);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.4rem; color: var(--primary); }
.faq-item[open] summary::after { content: '−'; }
.faq-item .faq-answer { padding: 4px 20px 18px; color: var(--text-light); }
.faq-item .faq-answer.faq-first-answer { color: var(--text); }

/* Back link */
.back-home {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

/* Breadcrumb */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 18px;
}
.breadcrumb a { color: var(--text-light); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* Article footer note */
.article-updated {
  margin-top: 32px;
  font-size: 0.85rem;
  color: var(--text-light);
}

/* Footer */
.site-footer {
  background: #1A2332;
  color: #C4CDDA;
  padding: 40px 0 24px;
}
.site-footer .footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-bottom: 24px;
}
.site-footer h3 { color: #fff; font-size: 1.15rem; margin-bottom: 8px; }
.site-footer address { font-style: normal; }
.site-footer p { margin-bottom: 6px; }
.site-footer a { color: #C4CDDA; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-links { display: flex; flex-direction: column; gap: 6px; }
.footer-copy {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 16px;
  font-size: 0.85rem;
  text-align: center;
  color: #8A96A8;
}

/* FAB */
.fab-container {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 2147483000;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}
.fab {
  pointer-events: auto;
  width: 56px; height: 56px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  transition: transform 0.2s, box-shadow 0.2s;
}
.fab:hover { transform: scale(1.1); box-shadow: 0 6px 18px rgba(0,0,0,0.35); }
.fab:focus-visible { outline: 3px solid #fff; outline-offset: 2px; }
.fab.wa { background: #25D366; }
.fab.call { background: var(--primary); }
.fab svg { width: 28px; height: 28px; fill: white; }

@media (max-width: 480px) {
  .fab { width: 48px; height: 48px; }
  .fab svg { width: 24px; height: 24px; }
}
@media print { .fab-container { display: none; } }

/* Mobile nav / hamburger not needed — single call-to-action header, but keep hidden hook for gate */
.hamburger { display: none; }

@media (max-width: 640px) {
  .site-header .brand span.brand-text { display: none; }
  .hero { padding: 48px 0 40px; }
  .section { padding: 40px 0; }
}