:root{
  --bg: #0a0a0a;
  --surface: #1a1a1a;
  --border: #2a2a2a;
  --text: #ffffff;
  --muted: #888888;
  --accent: #f7931a;
  --accent-contrast: #000000;
  --ok: #27ae60;
  --wrap: 1200px;
  --radius-lg: 8px;
  --radius-md: 6px;
  --radius-sm: 4px;
  --shadow: 0 4px 12px rgba(247, 147, 26, 0.1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; color: inherit; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell;
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
}

.cta-fab{
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 40;
  padding: 0.9rem 1.25rem;
  border-radius: 9999px;
  box-shadow: 0 10px 30px rgba(10, 89, 199, .35);
  text-align: center;
  white-space: nowrap;
}
.cta-fab:hover{ filter: brightness(1.06); }

@media (max-width: 720px){
  .cta-fab{
    left: 16px;
    right: 16px;
    border-radius: 12px;
  }
  body{ padding-bottom: 72px; }
}

@media (prefers-reduced-motion: reduce){
  .cta-fab{ transition: none !important; }
}

.container { max-width: var(--wrap); margin-inline: auto; padding-inline: 16px; }
.wrap { padding-bottom: 32px; }

.header {
  position: sticky; top: 0; z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.header__container {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 60px;
}
.logo img { height: 32px; }

.buttons .btn, .btn {
  display: inline-block;
  padding: .6rem .9rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s ease;
}
.btn.accent {
  background: var(--accent);
  color: var(--accent-contrast);
}
.btn.accent:hover { background: #e58410; }
.btn.outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn.outline:hover { border-color: var(--accent); }

.hero {
  text-align: center;
  padding: 60px 0 40px;
  max-width: 800px;
  margin: 0 auto;
}
.hero h1 {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
  margin: 0 0 16px 0;
}
.hero p {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 0 24px 0;
}

.content-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin: 24px 0;
}
.content-section h2 { margin-top: 0; color: var(--accent); }

.breadcrumbs {
  padding: 16px 0;
  color: var(--muted);
  font-size: .9rem;
}
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--text); }

table {
  width: 100%; border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
th, td {
  border: 1px solid var(--border);
  padding: 12px;
  text-align: left;
}
thead th {
  background: color-mix(in oklab, var(--surface), #ffffff 3%);
}

footer {
  margin-top: 48px;
  color: #666;
  border-top: 1px solid var(--border);
  padding: 24px 0 32px;
}
.footer-columns {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}
.minor { font-size: .9rem; color: #666; }
.mt-2 { margin-top: 16px !important; }

.faq-item {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.faq-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.bitcoin-price {
  background: linear-gradient(135deg, #f7931a, #ffb357);
  color: #000;
  padding: 16px;
  border-radius: var(--radius-lg);
  text-align: center;
  margin: 20px 0;
  font-weight: bold;
}

@media (max-width: 768px) {
  .header__container { flex-direction: column; padding: 12px 0; }
  .hero { padding: 40px 0 20px; }
  .footer-columns { grid-template-columns: 1fr; }
  .content-section { padding: 16px; }
}

.main-404 {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 50vh;
  text-align: center;
  padding: 40px 0;
}
.title-404 {
  font-size: 80px;
  font-weight: bold;
  margin: 0 0 16px 0;
  color: var(--accent);
}
.description-404 {
  font-size: 20px;
  color: var(--muted);
  margin: 0 0 32px 0;
}