/* Ledger Bitcoin Recovery - Multilingual Site */
:root {
  --color1: #00b3ff;
  --color2: #66c5ff;
  --color3: #b1d9ff;
  --color4: #e4efff;
  --color5: #ffffff;
  --dark: #0a1628;
  --text: #1a2a3a;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 179, 255, 0.08);
  --transition: 0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--color5);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header {
  background: linear-gradient(135deg, var(--dark) 0%, #0d2137 100%);
  color: var(--color5);
  padding: 1rem 1.5rem;
  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;
}
.nav-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  color: var(--color4);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-menu a:hover { color: var(--color1); }
.lang-switcher {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.lang-switcher a {
  color: var(--color3);
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.2);
  font-size: 0.9rem;
  transition: background var(--transition), color var(--transition);
}
.lang-switcher a:hover {
  background: rgba(0,179,255,0.2);
  color: var(--color5);
}

/* Main */
main { flex: 1; max-width: 1200px; margin: 0 auto; padding: 2rem 1.5rem; width: 100%; }

/* Hero block */
.hero {
  background: linear-gradient(160deg, var(--color4) 0%, var(--color5) 50%);
  border-radius: var(--radius);
  padding: 2.5rem;
  margin-bottom: 2.5rem;
  border: 1px solid var(--color3);
}
.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--dark);
  line-height: 1.3;
}
.hero h1 .color1 { color: var(--color1); }
.hero p:first-of-type { font-size: 1.05rem; color: var(--text); }

/* Section blocks */
.section-block {
  margin-bottom: 2.5rem;
  padding: 1.5rem;
  background: var(--color5);
  border-radius: var(--radius);
  border: 1px solid var(--color4);
  box-shadow: var(--shadow);
}
.section-block h2 {
  margin: 0 0 1rem;
  font-size: 1.35rem;
  color: var(--dark);
  border-bottom: 2px solid var(--color2);
  padding-bottom: 0.5rem;
}
.section-block h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.15rem;
  color: var(--color1);
}
.section-block p { margin: 0.5rem 0; }
.section-block ul {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
}

/* Image block - not too large */
.content-img-wrap {
  margin: 1rem 0;
  text-align: center;
}
.content-img-wrap img {
  max-width: 100%;
  width: 420px;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--color4);
  object-fit: cover;
  loading: lazy;
}

/* Tables */
.content-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
  overflow-x: auto;
  display: block;
}
.content-table th,
.content-table td {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color4);
  text-align: left;
}
.content-table th {
  background: var(--color4);
  color: var(--dark);
  font-weight: 600;
}
.content-table tr:nth-child(even) { background: var(--color4); }
@media (min-width: 640px) {
  .content-table { display: table; }
}

/* FAQ block + script */
.faq-block {
  background: linear-gradient(180deg, var(--color4) 0%, var(--color5) 100%);
  border-radius: var(--radius);
  padding: 2rem;
  margin: 2rem 0;
  border: 1px solid var(--color3);
}
.faq-block h2 {
  margin: 0 0 1.25rem;
  color: var(--dark);
  font-size: 1.35rem;
}
.faq-item {
  margin-bottom: 0.75rem;
  border: 1px solid var(--color3);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color5);
}
.faq-item summary {
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--dark);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--color1);
  transition: transform var(--transition);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-answer {
  padding: 0 1.25rem 1rem;
  color: var(--text);
  border-top: 1px solid var(--color4);
}

/* Internal links in text */
.content-body a {
  color: var(--color1);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
.content-body a:hover { border-bottom-color: var(--color1); }

/* Footer */
.site-footer {
  background: var(--dark);
  color: var(--color4);
  padding: 2rem 1.5rem;
  margin-top: 3rem;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.footer-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}
.footer-menu a {
  color: var(--color3);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-menu a:hover { color: var(--color1); }
.footer-lang {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.15);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-lang a { color: var(--color2); text-decoration: none; }
.footer-lang a:hover { text-decoration: underline; }
.footer-copy {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--color3);
}

/* Responsive */
@media (max-width: 768px) {
  .site-header { padding: 0.75rem 1rem; }
  .header-inner { flex-direction: column; align-items: flex-start; }
  main { padding: 1.25rem 1rem; }
  .hero { padding: 1.5rem; }
  .section-block { padding: 1rem; }
  .content-img-wrap img { width: 100%; max-width: 320px; }
}
@media (max-width: 480px) {
  body { font-size: 16px; }
  .nav-menu { flex-direction: column; }
}