/* Ledger Cold Wallet Order - Design system */
:root {
  --color1: #4e2649;
  --color2: #73355e;
  --color3: #ab4d7b;
  --color4: #f86fa0;
  --color5: #ff9dca;
  --bg-light: #fef7fa;
  --bg-card: #fff;
  --text: #2d1b2a;
  --text-muted: #5c4a58;
  --border: rgba(78, 38, 73, 0.12);
  --shadow: 0 4px 20px rgba(78, 38, 73, 0.08);
  --shadow-hover: 0 8px 32px rgba(78, 38, 73, 0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-size-base: 1rem;
  --line-height: 1.65;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--text);
  background: var(--bg-light);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header {
  background: linear-gradient(135deg, var(--color1) 0%, var(--color2) 100%);
  color: #fff;
  padding: 0.75rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.nav-main {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  align-items: center;
}

.nav-main a {
  color: rgba(255,255,255,0.95);
  text-decoration: none;
  padding: 0.4rem 0.6rem;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: background 0.2s, color 0.2s;
}

.nav-main a:hover {
  background: rgba(255,255,255,0.15);
  color: #fff;
}

.lang-switcher {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.lang-switcher a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  padding: 0.35rem 0.6rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.2s;
}

.lang-switcher a:hover,
.lang-switcher a.active {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

/* Main content */
main {
  flex: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  width: 100%;
}

.article-hero {
  margin-bottom: 2.5rem;
  padding: 2rem 0;
  border-bottom: 2px solid var(--border);
}

.article-hero h1 {
  color: var(--color1);
  font-size: clamp(1.6rem, 4vw, 2rem);
  line-height: 1.25;
  margin: 0 0 1rem;
  font-weight: 700;
}

.article-hero .lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin: 0;
}

/* Blocks */
.block {
  margin-bottom: 2.5rem;
}

.block h2 {
  color: var(--color2);
  font-size: 1.35rem;
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color5);
}

.block h3 {
  color: var(--color3);
  font-size: 1.15rem;
  margin: 1.25rem 0 0.6rem;
}

.block p {
  margin: 0 0 1rem;
}

.block ul, .block ol {
  margin: 0 0 1rem;
  padding-left: 1.4rem;
}

.block li {
  margin-bottom: 0.35rem;
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.card h3 {
  margin-top: 0;
}

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

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

th, td {
  padding: 0.65rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

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

tr:last-child td {
  border-bottom: none;
}

tr:nth-child(even) td {
  background: rgba(78, 38, 73, 0.03);
}

/* Images */
.content-img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 1rem 0;
  display: block;
  width: 100%;
  max-width: 420px;
}

/* Links in content */
a.content-link {
  color: var(--color3);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid var(--color5);
  transition: color 0.2s, border-color 0.2s;
}

a.content-link:hover {
  color: var(--color2);
  border-bottom-color: var(--color2);
}

/* FAQ */
.faq-section {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 2px solid var(--border);
}

.faq-section h2 {
  margin-bottom: 1.25rem;
}

.faq-item {
  margin-bottom: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(78, 38, 73, 0.04);
}

.faq-item summary {
  font-weight: 600;
  color: var(--color2);
  cursor: pointer;
  list-style: none;
  padding-right: 1.5rem;
  position: relative;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 0;
  font-size: 1.2rem;
  color: var(--color4);
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item p {
  margin: 0.75rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

/* Footer */
.site-footer {
  background: linear-gradient(180deg, var(--color1) 0%, #3a1c36 100%);
  color: rgba(255,255,255,0.9);
  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;
  margin-bottom: 1.5rem;
}

.footer-menu a {
  color: var(--color5);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.footer-menu a:hover {
  color: #fff;
}

.footer-lang {
  margin-bottom: 1rem;
}

.footer-lang a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  margin-right: 1rem;
  font-size: 0.9rem;
}

.footer-lang a:hover {
  color: #fff;
}

.footer-copy {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  margin: 0;
}

/* Utility */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

@media (max-width: 768px) {
  .site-header .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav-main {
    width: 100%;
  }
  main {
    padding: 1.5rem 1rem;
  }
  .article-hero h1 {
    font-size: 1.5rem;
  }
  th, td {
    padding: 0.5rem 0.6rem;
    font-size: 0.875rem;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 16px;
  }
  .content-img {
    max-width: 100%;
  }
}