/* Ledger Cold Wallet Usage - Neon theme, mobile-first */
:root {
  --color1: #ff5558;
  --color2: #ff9f23;
  --color3: #ffd538;
  --color4: #f2fa79;
  --color5: #d2ffb5;
  --bg-dark: #0d0d12;
  --bg-card: #16161f;
  --text: #e8e8ed;
  --text-muted: #a0a0b0;
  --border: rgba(255, 85, 88, 0.2);
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-size: 16px;
  --max-width: 960px;
  --radius: 12px;
  --shadow-glow: 0 0 30px rgba(255, 85, 88, 0.15);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-dark);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color4);
  text-decoration: none;
  transition: color 0.2s, box-shadow 0.2s;
}
a:hover {
  color: var(--color3);
}

/* Layout */
.site-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.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: 1.1rem;
  color: var(--color5);
}
.logo a { color: inherit; }

/* Nav */
.nav-main {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: center;
}
.nav-main a {
  color: var(--text-muted);
  font-size: 0.95rem;
}
.nav-main a:hover { color: var(--color4); }

/* Language switcher - links */
.lang-switcher {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.lang-switcher a {
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  font-size: 0.9rem;
}
.lang-switcher a:hover {
  background: rgba(255, 213, 56, 0.15);
  color: var(--color3);
}
.lang-switcher a.active {
  background: rgba(255, 85, 88, 0.2);
  color: var(--color1);
}

/* Main content */
.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Blocks */
.hero-block {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
}
.hero-block h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color5);
}
.hero-block .lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 70ch;
}

.section-block {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
}
.section-block:last-of-type { border-bottom: 0; }

.section-block h2 {
  margin: 0 0 1rem;
  font-size: 1.5rem;
  color: var(--color2);
}
.section-block h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.2rem;
  color: var(--color3);
}

.content-block {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 1rem 0;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-glow);
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  margin: 1rem 0;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
th, td {
  padding: 0.6rem 0.8rem;
  text-align: left;
  border: 1px solid var(--border);
}
th {
  background: rgba(255, 159, 35, 0.1);
  color: var(--color2);
  font-weight: 600;
}

/* Images in content - not too large */
.content-block img,
.section-block img {
  max-width: 100%;
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  border-radius: 8px;
  margin: 1rem 0;
  background: rgba(0,0,0,0.2);
}

/* FAQ accordion */
.faq-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.faq-list li {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 0.5rem;
  overflow: hidden;
  background: var(--bg-card);
}
.faq-list .faq-q {
  width: 100%;
  padding: 1rem 1.25rem;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color4);
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  font-family: inherit;
}
.faq-list .faq-q:hover {
  background: rgba(242, 250, 121, 0.08);
}
.faq-list .faq-q::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--color3);
  flex-shrink: 0;
}
.faq-list li.is-open .faq-q::after {
  content: '−';
}
.faq-list .faq-a {
  padding: 0 1.25rem 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  display: none;
}
.faq-list li.is-open .faq-a {
  display: block;
}

/* Internal links block */
.links-block {
  padding: 1.25rem;
  background: rgba(210, 255, 181, 0.06);
  border-radius: var(--radius);
  border: 1px solid rgba(210, 255, 181, 0.2);
  margin: 1.5rem 0;
}
.links-block p { margin: 0 0 0.5rem; color: var(--color5); font-weight: 600; }
.links-block a { margin-right: 0.75rem; }

/* Footer */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  margin-top: 3rem;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  margin-bottom: 1rem;
}
.footer-menu a {
  color: var(--text-muted);
  font-size: 0.95rem;
}
.footer-menu a:hover { color: var(--color4); }
.footer-copy {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Utility classes for neon colors in text */
.color1 { color: #ff5558; }
.color2 { color: #ff9f23; }
.color3 { color: #ffd538; }
.color4 { color: #f2fa79; }
.color5 { color: #d2ffb5; }

/* Responsive */
@media (max-width: 640px) {
  .site-header { padding: 0.75rem 1rem; }
  .header-inner { flex-direction: column; align-items: flex-start; }
  .main-content { padding: 1.25rem 1rem; }
  .hero-block { padding: 1.5rem 0; }
  .section-block { padding: 1.25rem 0; }
  th, td { padding: 0.5rem; font-size: 0.85rem; }
}

@media (min-width: 768px) {
  .content-block img,
  .section-block img {
    max-height: 280px;
    max-width: 480px;
  }
}