/* Crypto Ledger Portfolio - Multilingual Site Styles */
:root {
  --color1: #0cc000;
  --color2: #98de00;
  --color3: #fffb32;
  --color4: #fffba8;
  --color5: #fffbf4;
  --text-dark: #1a1a1a;
  --text-muted: #444;
  --border: rgba(12, 192, 0, 0.2);
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --radius: 12px;
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

* { 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-dark);
  background: var(--color5);
}

/* Header */
.site-header {
  background: linear-gradient(135deg, var(--color1) 0%, var(--color2) 100%);
  color: var(--text-dark);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-dark);
  text-decoration: none;
}
.nav-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
}
.nav-menu a:hover { background: rgba(255,255,255,0.3); }
.lang-switcher {
  display: flex;
  gap: 0.5rem;
}
.lang-switcher a {
  padding: 0.35rem 0.6rem;
  background: rgba(255,255,255,0.4);
  color: var(--text-dark);
  text-decoration: none;
  border-radius: 6px;
  font-weight: 500;
  font-size: 0.9rem;
}
.lang-switcher a:hover,
.lang-switcher a.active { background: rgba(255,255,255,0.8); }

/* Main */
main { max-width: 900px; margin: 0 auto; padding: 2rem 1.5rem; min-height: 50vh; }

/* Typography */
h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  color: var(--color1);
  margin: 0 0 1.5rem;
  line-height: 1.25;
}
h2 {
  font-size: 1.35rem;
  color: var(--color2);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.35rem;
  border-bottom: 2px solid var(--border);
}
h3 {
  font-size: 1.15rem;
  color: var(--text-dark);
  margin: 1.5rem 0 0.75rem;
}
p { margin: 0 0 1rem; color: var(--text-muted); }
a { color: var(--color1); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Blocks */
.block-hero {
  background: linear-gradient(180deg, var(--color4) 0%, var(--color5) 100%);
  padding: 2rem;
  border-radius: var(--radius);
  margin-bottom: 2rem;
  border: 1px solid var(--border);
}
.block-card {
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--color2);
}
.block-table-wrap { overflow-x: auto; margin: 1rem 0; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
th, td {
  border: 1px solid var(--border);
  padding: 0.6rem 0.8rem;
  text-align: left;
}
th { background: var(--color4); color: var(--text-dark); font-weight: 600; }
tr:nth-child(even) { background: var(--color5); }

/* Images */
.content-img {
  max-width: 100%;
  width: 320px;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 1rem 0;
  display: block;
}
.content-img.left { float: left; margin-right: 1.5rem; }
.content-img.right { float: right; margin-left: 1.5rem; }
@media (max-width: 640px) {
  .content-img.left,
  .content-img.right { float: none; margin: 1rem 0; }
}

/* FAQ Accordion */
.faq-list { list-style: none; padding: 0; margin: 0; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 0.5rem;
  overflow: hidden;
  background: #fff;
}
.faq-q {
  width: 100%;
  padding: 1rem 1.25rem;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color1);
  background: var(--color5);
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.faq-q:hover { background: var(--color4); }
.faq-q::after {
  content: '+';
  font-size: 1.25rem;
  flex-shrink: 0;
}
.faq-item.is-open .faq-q::after { content: '−'; }
.faq-a {
  padding: 0 1.25rem 1rem;
  display: none;
}
.faq-item.is-open .faq-a { display: block; }
.faq-a p:last-child { margin-bottom: 0; }

/* Footer */
.site-footer {
  background: linear-gradient(180deg, #1a1a1a 0%, #2d2d2d 100%);
  color: #ccc;
  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;
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}
.footer-menu a { color: var(--color2); text-decoration: none; }
.footer-menu a:hover { text-decoration: underline; }
.footer-lang { margin-top: 1rem; }
.footer-lang a {
  color: var(--color4);
  text-decoration: none;
  margin-right: 1rem;
}
.footer-lang a:hover { text-decoration: underline; }
.footer-copy { margin-top: 1rem; font-size: 0.9rem; color: #888; }

/* Utility */
.color1 { color: var(--color1); }
.color2 { color: var(--color2); }
.color3 { color: var(--color3); }
.color4 { color: var(--color4); }
.color5 { color: var(--color5); }
ul:not(.nav-menu):not(.footer-menu):not(.faq-list) { margin: 0 0 1rem; padding-left: 1.5rem; }
li { margin: 0.25rem 0; }

@media (max-width: 768px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  .nav-menu { flex-direction: column; }
  main { padding: 1.5rem 1rem; }
  .block-hero { padding: 1.5rem; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .lang-switcher { flex-wrap: wrap; }
}