:root {
  --bt-bg: #0f1117;
  --bt-card: #1a1f2e;
  --bt-accent: #7c3aed;
  --bt-text: #f3f4f6;
  --bt-muted: #9ca3af;
  --bt-border: #2d3548;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bt-bg);
  color: var(--bt-text);
  line-height: 1.5;
}
a { color: #a78bfa; }
.bt-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--bt-border);
  background: #12151f;
}
.bt-logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: #fff;
  text-decoration: none;
}
.bt-search { flex: 1; display: flex; gap: 0.5rem; min-width: 200px; }
.bt-search input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--bt-border);
  background: var(--bt-card);
  color: var(--bt-text);
}
.bt-nav { display: flex; gap: 0.75rem; align-items: center; }
.bt-main { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }
.bt-footer { text-align: center; padding: 2rem; color: var(--bt-muted); font-size: 0.875rem; }
.bt-hero h1 { margin: 0 0 0.5rem; }
.bt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}
.bt-card {
  background: var(--bt-card);
  border: 1px solid var(--bt-border);
  border-radius: 12px;
  padding: 1rem;
}
.bt-card h2 { margin: 0 0 0.5rem; font-size: 1rem; }
.bt-card h2 a { color: inherit; text-decoration: none; }
.bt-meta, .bt-hint { color: var(--bt-muted); font-size: 0.875rem; }
.bt-price { color: #34d399; font-weight: 600; }
.bt-btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  background: var(--bt-accent);
  color: #fff;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 0.9375rem;
}
.bt-btn-ghost { background: transparent; border: 1px solid var(--bt-border); color: var(--bt-text); }
.bt-btn-primary { width: 100%; margin-top: 0.5rem; }
.bt-dates { list-style: none; padding: 0; }
.bt-dates li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--bt-border);
  border-radius: 10px;
  margin-bottom: 0.75rem;
  background: var(--bt-card);
}
.bt-form label { display: block; margin-bottom: 0.75rem; }
.bt-form input, .bt-form select, .bt-checkout-form textarea {
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.5rem;
  border-radius: 8px;
  border: 1px solid var(--bt-border);
  background: var(--bt-card);
  color: var(--bt-text);
}
.bt-error { color: #f87171; }
.bt-success { background: #064e3b; padding: 1rem; border-radius: 10px; }
.bt-pix img { display: block; margin: 1rem auto; background: #fff; border-radius: 8px; }
.bt-tabs { display: flex; gap: 1rem; margin-bottom: 1rem; }
.bt-tabs a.active { font-weight: 700; color: #fff; }
.bt-warn { color: #fbbf24; }