/* Ledger Bitcoin Recovery – neon theme, responsive */
:root {
  --color1: #004530;
  --color2: #155a37;
  --color3: #3a7d45;
  --color4: #6eae56;
  --color5: #b7ee6b;
  --bg-dark: #001a14;
  --bg-card: #002a1f;
  --text: #e8f5e9;
  --text-muted: #a5d6a7;
  --border-glow: rgba(183, 238, 107, 0.3);
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-size-base: 16px;
  --line-height: 1.6;
  --container: min(1200px, 100% - 2rem);
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 69, 48, 0.4);
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  line-height: var(--line-height);
  color: var(--text);
  background: var(--bg-dark);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

img[loading="lazy"] {
  loading: lazy;
}

a {
  color: var(--color5);
  text-decoration: none;
  transition: color 0.2s, box-shadow 0.2s;
}

a:hover {
  color: var(--color4);
  text-decoration: underline;
}

/* Header */
.site-header {
  background: linear-gradient(180deg, var(--color1) 0%, var(--bg-card) 100%);
  border-bottom: 2px solid var(--color3);
  box-shadow: 0 4px 20px rgba(0, 69, 48, 0.5);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color5);
  text-shadow: 0 0 12px var(--border-glow);
}

.nav-main {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: center;
}

.nav-main a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
}

.nav-main a:hover {
  color: var(--color5);
  background: rgba(183, 238, 107, 0.1);
  text-decoration: none;
}

.lang-switcher {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.lang-switcher a {
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--color4);
  border-radius: 6px;
  color: var(--color4);
  font-size: 0.9rem;
}

.lang-switcher a:hover {
  background: var(--color3);
  color: var(--color5);
  text-decoration: none;
}

/* Main content */
.main-content {
  max-width: var(--container);
  margin: 0 auto;
  padding: 2rem 1rem;
}

.article-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color3);
}

.article-header h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--color5);
  text-shadow: 0 0 20px var(--border-glow);
  line-height: 1.3;
}

/* Blocks */
.block-hero {
  background: linear-gradient(135deg, var(--color1) 0%, var(--color2) 50%, var(--bg-card) 100%);
  border: 1px solid var(--color4);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}

.block-card {
  background: var(--bg-card);
  border: 1px solid var(--color3);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.block-card h2 {
  margin-top: 0;
  color: var(--color4);
  font-size: 1.35rem;
  border-bottom: 1px solid var(--color3);
  padding-bottom: 0.5rem;
}

.block-card h3 {
  color: var(--color5);
  font-size: 1.15rem;
  margin: 1.25rem 0 0.5rem;
}

.block-highlight {
  background: linear-gradient(90deg, rgba(58, 125, 69, 0.3), transparent);
  border-left: 4px solid var(--color5);
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  margin: 1rem 0;
  border-radius: var(--radius);
  border: 1px solid var(--color3);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

th, td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--color2);
}

th {
  background: var(--color1);
  color: var(--color5);
  font-weight: 600;
}

tr:hover {
  background: rgba(58, 125, 69, 0.15);
}

/* FAQ */
.faq-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.faq-item {
  margin-bottom: 0.5rem;
  border: 1px solid var(--color3);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
}

.faq-q {
  width: 100%;
  padding: 1rem 1.25rem;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color5);
  background: rgba(0, 69, 48, 0.4);
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  font-family: inherit;
}

.faq-q:hover {
  background: rgba(58, 125, 69, 0.3);
}

.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;
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  display: none;
}

.faq-item.is-open .faq-a {
  display: block;
}

.faq-a-inner {
  padding-top: 0.25rem;
}

/* Content images */
.content-img {
  max-width: 420px;
  margin: 1.25rem auto;
  border-radius: var(--radius);
  border: 1px solid var(--color3);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.content-img img {
  width: 100%;
  height: auto;
}

/* Footer */
.site-footer {
  background: linear-gradient(0deg, var(--color1) 0%, var(--bg-dark) 100%);
  border-top: 2px solid var(--color3);
  margin-top: 3rem;
  padding: 2rem 1rem;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.footer-nav h4 {
  color: var(--color5);
  font-size: 1rem;
  margin: 0 0 0.75rem;
}

.footer-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav li {
  margin-bottom: 0.35rem;
}

.footer-nav a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-nav a:hover {
  color: var(--color5);
  text-decoration: underline;
}

.footer-bottom {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color2);
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
}

/* Utility */
.color1 { color: var(--color1); }
.color2 { color: var(--color2); }
.color3 { color: var(--color3); }
.color4 { color: var(--color4); }
.color5 { color: var(--color5); }

/* Responsive */
@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-inner {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 767px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav-main {
    width: 100%;
  }
}