/* Bitcoin Ledger Recovery – neon theme, mobile-first */
:root {
  --color1: #0a1a06;
  --color2: #0c4430;
  --color3: #c82b92;
  --color4: #e2a3b9;
  --color5: #edefdd;
  --bg-dark: #061008;
  --neon-glow: rgba(200, 43, 146, 0.5);
  --font-sans: 'Segoe UI', system-ui, sans-serif;
  --font-min: 16px;
  --max-width: 960px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--font-min);
  line-height: 1.6;
  color: var(--color5);
  background: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--color4); text-decoration: none; }
a:hover { color: var(--color3); text-decoration: underline; }

/* Layout */
.site-header {
  background: linear-gradient(180deg, var(--color1) 0%, var(--bg-dark) 100%);
  border-bottom: 1px solid var(--color2);
  padding: 1rem 1.25rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.logo { font-weight: 700; font-size: 1.15rem; color: var(--color5); }
.logo a { color: inherit; text-decoration: none; }
.logo a:hover { text-decoration: none; color: var(--color4); }

/* Nav */
.nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}
.nav-menu a {
  color: var(--color5);
  padding: 0.35em 0;
}
.nav-menu a:hover { color: var(--color4); }

/* Lang switcher – links */
.lang-switcher {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.lang-switcher a {
  color: var(--color4);
  font-size: 0.9rem;
}
.lang-switcher a:hover { color: var(--color3); }

/* Main */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}
article { margin-bottom: 2.5rem; }

h1 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--color5);
  margin: 0 0 1rem;
  line-height: 1.25;
}
h2 {
  font-size: clamp(1.2rem, 3vw, 1.4rem);
  color: var(--color4);
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.25rem;
}
h3 {
  font-size: 1.05rem;
  color: var(--color4);
  margin: 1.25rem 0 0.5rem;
  opacity: 0.95;
}
p { margin: 0 0 1rem; }

/* Blocks */
.block-hero {
  background: linear-gradient(135deg, var(--color1) 0%, var(--color2) 50%, var(--color1) 100%);
  border: 1px solid var(--color2);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  box-shadow: 0 0 20px var(--neon-glow);
}
.block-card {
  background: rgba(12, 68, 48, 0.25);
  border: 1px solid var(--color2);
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}
.block-table-wrap { overflow-x: auto; margin: 1rem 0; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
th, td {
  border: 1px solid var(--color2);
  padding: 0.6rem 0.75rem;
  text-align: left;
}
th { background: var(--color2); color: var(--color5); }
tr:nth-child(even) { background: rgba(12, 68, 48, 0.2); }

/* Images – not too large */
.content-img {
  max-width: 420px;
  margin: 1rem 0;
  border-radius: 8px;
  border: 1px solid var(--color2);
  box-shadow: 0 0 12px rgba(200, 43, 146, 0.2);
}

/* FAQ */
.faq-list { margin: 1.5rem 0; }
.faq-item {
  border: 1px solid var(--color2);
  border-radius: 8px;
  margin-bottom: 0.5rem;
  overflow: hidden;
  background: rgba(12, 68, 48, 0.15);
}
.faq-q {
  width: 100%;
  padding: 1rem 1.25rem;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color5);
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.faq-q:hover { background: rgba(200, 43, 146, 0.15); color: var(--color4); }
.faq-q::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--color4);
  flex-shrink: 0;
}
.faq-item.is-open .faq-q::after { content: '−'; }
.faq-a {
  padding: 0 1.25rem 1rem;
  display: none;
}
.faq-item.is-open .faq-a { display: block; }
.faq-a p { margin: 0; }

/* Footer */
.site-footer {
  background: var(--color1);
  border-top: 1px solid var(--color2);
  padding: 2rem 1.25rem;
  margin-top: 2rem;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-menu {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
}
.footer-menu a { color: var(--color4); }
.footer-copy { font-size: 0.9rem; color: var(--color4); opacity: 0.9; }

/* Lists */
ul:not(.nav-menu):not(.footer-menu):not(.lang-switcher) {
  padding-left: 1.5rem;
  margin: 0 0 1rem;
}
li { margin-bottom: 0.35rem; }

/* Internal links in text */
.content a { color: var(--color4); border-bottom: 1px solid transparent; }
.content a:hover { border-bottom-color: var(--color3); }

@media (min-width: 768px) {
  .site-header { padding: 1rem 2rem; }
  main { padding: 2rem 2rem 3rem; }
  .block-hero { padding: 2rem; }
  .block-card { padding: 1.5rem; }
  .site-footer { padding: 2rem 2rem; }
}