/* Bitcoin Ledger Live - Color Scheme */
:root {
  --color1: #fda5af;
  --color2: #ffc8b7;
  --color3: #340f16;
  --color4: #7d7576;
  --color5: #e2e2e2;
  --bg-dark: #1a0d10;
  --bg-light: #faf8f7;
  --transition: 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color3);
  background: var(--bg-light);
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--color1);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color3);
}

/* Header */
.site-header {
  background: linear-gradient(135deg, var(--color3) 0%, #4a1a20 100%);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(52, 15, 22, 0.3);
}

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

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color5);
}

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

.logo a:hover {
  color: var(--color2);
}

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

.main-nav a {
  color: var(--color5);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-weight: 500;
}

.main-nav a:hover {
  background: rgba(253, 165, 175, 0.2);
  color: var(--color2);
}

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

.lang-switcher a {
  color: var(--color5);
  padding: 0.4rem 0.8rem;
  border: 1px solid rgba(226, 226, 226, 0.3);
  border-radius: 6px;
  font-size: 0.9rem;
}

.lang-switcher a:hover,
.lang-switcher a.active {
  background: var(--color1);
  color: var(--color3);
  border-color: var(--color1);
}

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--color3) 0%, #2d1519 50%, var(--bg-dark) 100%);
  padding: 4rem 2rem;
  text-align: center;
  color: var(--color5);
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
  color: var(--color5);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.95;
  max-width: 600px;
  margin: 0 auto 2rem;
  color: var(--color2);
}

/* Content Sections */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

.content-block {
  margin-bottom: 3rem;
  padding: 2rem;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(52, 15, 22, 0.08);
  border-left: 4px solid var(--color1);
}

.content-block:nth-child(even) {
  border-left-color: var(--color2);
}

.content-block h2 {
  color: var(--color3);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color2);
}

.content-block h3 {
  color: var(--color4);
  font-size: 1.2rem;
  margin: 1.5rem 0 0.75rem;
}

.content-block p {
  margin-bottom: 1rem;
  color: var(--color3);
}

.content-block ul, .content-block ol {
  margin: 1rem 0 1rem 1.5rem;
}

.content-block li {
  margin-bottom: 0.5rem;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
  overflow-x: auto;
  display: block;
}

@media (min-width: 600px) {
  table { display: table; }
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border: 1px solid var(--color5);
}

th {
  background: var(--color3);
  color: var(--color5);
  font-weight: 600;
}

tr:nth-child(even) {
  background: var(--color5);
}

/* Images */
.content-img {
  max-width: 420px;
  margin: 1.5rem auto;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

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

/* FAQ */
.faq-block {
  background: linear-gradient(135deg, #fff 0%, var(--color5) 100%);
  padding: 2rem;
  border-radius: 12px;
  margin: 2rem 0;
}

.faq-item {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(125, 117, 118, 0.2);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item h3 {
  color: var(--color3);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

/* Footer */
.site-footer {
  background: var(--color3);
  color: var(--color5);
  padding: 3rem 2rem 2rem;
  margin-top: 4rem;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-nav h4 {
  color: var(--color2);
  font-size: 1rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.footer-nav li {
  margin-bottom: 0.5rem;
}

.footer-nav a {
  color: var(--color5);
}

.footer-nav a:hover {
  color: var(--color1);
}

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

.footer-lang a {
  color: var(--color2);
  margin-right: 1rem;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(226, 226, 226, 0.2);
  font-size: 0.9rem;
  opacity: 0.9;
}

/* Responsive */
@media (max-width: 768px) {
  .site-header { padding: 1rem; }
  .header-inner { flex-direction: column; align-items: flex-start; }
  .main-nav { width: 100%; }
  .hero { padding: 3rem 1rem; }
  .container { padding: 1rem; }
  .content-block { padding: 1.5rem; }
}

/* Guide cards on landing */
.guide-cards {
  display: grid;
  gap: 1.5rem;
  margin-top: 1rem;
}

.guide-card {
  display: block;
  padding: 1.5rem;
  background: linear-gradient(135deg, #fff 0%, var(--color5) 100%);
  border-radius: 10px;
  border-left: 4px solid var(--color1);
  transition: transform var(--transition), box-shadow var(--transition);
}

.guide-card:hover {
  transform: translateX(4px);
  box-shadow: 0 6px 25px rgba(52, 15, 22, 0.15);
}

.guide-card h3 {
  margin: 0 0 0.5rem;
  color: var(--color3);
}

.guide-card p {
  margin: 0;
  color: var(--color4);
  font-size: 0.95rem;
}

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

/* Internal links styling */
.content-block a[href^="/"], .content-block a[href$=".html"] {
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 3px;
}