/* Ledger Compare - Design system */
:root {
  --color1: #a9d2ff;
  --color2: #ecf7ff;
  --color3: #141a35;
  --color4: #76777c;
  --color5: #e2e2e2;
  --bg-dark: #0d1120;
  --bg-card: #1a2142;
  --radius: 12px;
  --shadow: 0 8px 32px rgba(0,0,0,0.12);
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color3);
  background: var(--color2);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header {
  background: linear-gradient(135deg, var(--color3) 0%, #1e2749 100%);
  color: var(--color2);
  padding: 0.75rem 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.site-logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color1);
  text-decoration: none;
}
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
}
.site-nav a {
  color: var(--color2);
  text-decoration: none;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}
.site-nav a:hover { background: rgba(255,255,255,0.15); color: var(--color1); }
.lang-switcher {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}
.lang-switcher a {
  display: inline-block;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  background: rgba(255,255,255,0.1);
  color: var(--color2);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background 0.2s, color 0.2s;
}
.lang-switcher a:hover,
.lang-switcher a.active { background: var(--color1); color: var(--color3); }

/* Main */
main { flex: 1; max-width: 1200px; margin: 0 auto; padding: 1.5rem 1rem; width: 100%; }

/* Blocks */
.hero {
  background: linear-gradient(160deg, var(--color3) 0%, #1e2749 70%);
  color: var(--color2);
  padding: 2.5rem 1.5rem;
  border-radius: var(--radius);
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}
.hero h1 { margin: 0 0 0.75rem; font-size: clamp(1.5rem, 4vw, 2rem); color: var(--color1); }
.hero p { margin: 0; opacity: 0.95; max-width: 70ch; }

.section {
  margin-bottom: 2.5rem;
}
.section h2 {
  color: var(--color3);
  font-size: 1.4rem;
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color1);
}
.section h3 {
  color: var(--color3);
  font-size: 1.15rem;
  margin: 1.25rem 0 0.5rem;
}
.section p { margin: 0.5rem 0; color: var(--color3); }
.section ul, .section ol { margin: 0.5rem 0; padding-left: 1.5rem; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 1rem 0;
}
.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  border: 1px solid var(--color5);
}
.card h3 { margin-top: 0; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 1rem 0; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
th, td { padding: 0.6rem 0.75rem; text-align: left; border-bottom: 1px solid var(--color5); }
th { background: var(--color3); color: var(--color2); font-weight: 600; }
tr:hover td { background: var(--color2); }

/* Images */
.content-img {
  max-width: 100%;
  max-height: 280px;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  margin: 1rem 0;
  display: block;
}
.img-wrap { margin: 1rem 0; }
.img-wrap img {
  max-width: 320px;
  max-height: 240px;
  width: auto;
  height: auto;
  object-fit: contain;
}

/* FAQ */
.faq-list { margin: 1rem 0; }
.faq-item {
  background: #fff;
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  border: 1px solid var(--color5);
  overflow: hidden;
}
.faq-q {
  padding: 1rem 1.25rem;
  font-weight: 600;
  color: var(--color3);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.faq-q::after { content: '+'; font-size: 1.25rem; color: var(--color4); }
.faq-item.open .faq-q::after { content: '−'; }
.faq-a {
  padding: 0 1.25rem 1rem;
  display: none;
  color: var(--color4);
  border-top: 1px solid var(--color5);
}
.faq-item.open .faq-a { display: block; }

/* Footer */
.site-footer {
  background: var(--color3);
  color: var(--color2);
  padding: 2rem 1rem;
  margin-top: 2rem;
}
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-bottom: 1rem;
}
.footer-nav a { color: var(--color1); text-decoration: none; }
.footer-nav a:hover { text-decoration: underline; }
.footer-lang { margin-top: 1rem; }
.footer-lang a { color: var(--color1); text-decoration: none; margin-right: 1rem; }
.footer-lang a:hover { text-decoration: underline; }
.copyright { font-size: 0.9rem; color: var(--color4); margin-top: 1rem; }

/* Links inside content */
main a { color: #2563eb; text-decoration: none; }
main a:hover { text-decoration: underline; }

/* Responsive */
@media (max-width: 768px) {
  .site-header { padding: 0.5rem 0.75rem; }
  .header-inner { flex-direction: column; align-items: flex-start; }
  .site-nav { width: 100%; }
  main { padding: 1rem 0.75rem; }
  .hero { padding: 1.5rem 1rem; }
  .hero p { max-width: 100%; }
  th, td { padding: 0.5rem; font-size: 0.85rem; }
}

@media (max-width: 480px) {
  body { font-size: 15px; }
  .card-grid { grid-template-columns: 1fr; }
}