/* Shared design tokens for UX paradigm drafts */
:root {
  --bg: #0b0e14;
  --surface: #131826;
  --surface-2: #1a2138;
  --border: #232b41;
  --text: #e6e9f0;
  --muted: #8b93a7;
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { color-scheme: dark; }
body {
  min-height: 100vh;
  background: radial-gradient(1200px 600px at 50% -10%, var(--surface-2) 0%, var(--bg) 60%);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button { font: inherit; cursor: pointer; }

.ux-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.ux-topbar .brand { font-weight: 700; letter-spacing: -0.01em; }
.ux-topbar .brand span { color: var(--accent, #22d3ee); }
.ux-topbar a.back {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}
.ux-topbar a.back:hover { color: var(--text); }

.badge {
  display: inline-block;
  font-size: 0.72rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}
.price { font-variant-numeric: tabular-nums; font-weight: 600; }

.warnbox {
  border: 1px solid rgba(251, 191, 36, 0.4);
  background: rgba(251, 191, 36, 0.08);
  color: var(--warn);
  border-radius: 10px;
  padding: 0.6rem 0.8rem;
  font-size: 0.85rem;
  margin-top: 0.5rem;
}