/* Crypto Ledger Wallet - Multi-language site */
:root {
  --color1: #f8b1ed;
  --color2: #f8c1ca;
  --color3: #122856;
  --color4: #12534a;
  --color5: #3a9a5e;
  --bg-light: #faf8fb;
  --bg-dark: #0d1b2e;
  --text: #1a1a2e;
  --text-muted: #4a5568;
  --white: #fff;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 20px rgba(18, 40, 86, 0.08);
  --shadow-hover: 0 12px 40px rgba(18, 40, 86, 0.12);
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --max-width: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-light);
}

/* Header */
.site-header {
  background: linear-gradient(135deg, var(--color3) 0%, #1a3a6e 100%);
  color: var(--white);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.site-logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--white);
  text-decoration: none;
}
.site-logo:hover { color: var(--color2); }

/* Nav */
.nav-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
}
.nav-main a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
}
.nav-main a:hover { color: var(--color1); background: rgba(255,255,255,0.1); }

/* Lang switcher */
.lang-switcher {
  display: flex;
  gap: 0.35rem;
}
.lang-switcher a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.3);
}
.lang-switcher a:hover,
.lang-switcher a.active { background: rgba(255,255,255,0.2); color: var(--white); }

/* Hero / Page title block */
.hero-block {
  background: linear-gradient(160deg, var(--color4) 0%, var(--color3) 100%);
  color: var(--white);
  padding: 2.5rem 1.5rem;
  text-align: center;
}
.hero-block h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

/* Content blocks - alternating / card style */
.content-block {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}
.content-block:nth-child(even) { background: linear-gradient(180deg, #fefefe 0%, #f8f4f9 100%); }
.content-block h2 {
  color: var(--color3);
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.4rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color2);
}
.content-block h3 {
  color: var(--color4);
  margin: 1.5rem 0 0.75rem;
  font-size: 1.15rem;
}
.content-block p { margin: 0 0 1rem; color: var(--text); }
.content-block ul, .content-block ol { margin: 0 0 1rem; padding-left: 1.5rem; }
.content-block li { margin-bottom: 0.35rem; }

/* Images in content - not too big */
.content-block img {
  max-width: 100%;
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: contain;
  border-radius: var(--radius);
  margin: 1rem 0;
  box-shadow: var(--shadow);
}

/* Tables */
.table-wrap { overflow-x: auto; margin: 1rem 0; }
.content-block table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.content-block th,
.content-block td {
  border: 1px solid #e2e8f0;
  padding: 0.6rem 0.75rem;
  text-align: left;
}
.content-block th {
  background: var(--color3);
  color: var(--white);
  font-weight: 600;
}
.content-block tr:nth-child(even) { background: #f7fafc; }

/* FAQ block */
.faq-block {
  background: linear-gradient(180deg, #f0f9f4 0%, #e8f5ee 100%);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2rem 0;
  border: 1px solid rgba(58, 154, 94, 0.2);
}
.faq-block h2 {
  color: var(--color4);
  margin-top: 0;
  margin-bottom: 1.25rem;
}
.faq-item {
  margin-bottom: 0.5rem;
  border: 1px solid rgba(18, 83, 74, 0.15);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
}
.faq-item summary {
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--color3);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--color5);
  transition: transform 0.2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-answer {
  padding: 0 1.25rem 1rem;
  color: var(--text-muted);
  border-top: 1px solid #e2e8f0;
}
.faq-item .faq-answer p { margin: 0.5rem 0 0; }

/* CTA / link block */
.cta-block {
  background: linear-gradient(135deg, var(--color2) 0%, var(--color1) 100%);
  padding: 1.5rem 2rem;
  border-radius: var(--radius-lg);
  margin: 2rem 0;
  text-align: center;
}
.cta-block a {
  color: var(--color3);
  font-weight: 600;
  text-decoration: none;
}
.cta-block a:hover { text-decoration: underline; }

/* Footer */
.site-footer {
  background: var(--color3);
  color: rgba(255,255,255,0.9);
  padding: 2.5rem 1.5rem 1.5rem;
  margin-top: 3rem;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-bottom: 1.5rem;
  justify-content: center;
}
.footer-menu a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  font-size: 0.95rem;
}
.footer-menu a:hover { color: var(--color1); }
.footer-lang {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.footer-lang a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
}
.footer-lang a:hover { color: var(--white); }
.footer-copy {
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
}

/* Utility */
.color1 { color: var(--color1); }
.color2 { color: var(--color2); }
.color3 { color: var(--color3); }
.color4 { color: var(--color4); }
.color5 { color: var(--color5); }
.text-center { text-align: center; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* Mobile */
@media (max-width: 768px) {
  .site-header { padding: 0.75rem 1rem; }
  .header-inner { flex-direction: column; align-items: stretch; }
  .nav-main { justify-content: center; }
  .lang-switcher { justify-content: center; }
  .hero-block { padding: 1.75rem 1rem; }
  .main-content { padding: 1.25rem 1rem; }
  .content-block { padding: 1.25rem; }
  .content-block img { max-height: 240px; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .content-block table { font-size: 0.8rem; }
  .content-block th, .content-block td { padding: 0.4rem 0.5rem; }
}