:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #111827;
  color: #f9fafb;
}

body { margin: 0; }
.shell { width: min(960px, calc(100% - 32px)); margin: 0 auto; padding: 32px 0; }
.hero, .card {
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(31,41,55,.96), rgba(17,24,39,.96));
  padding: 24px;
  margin-bottom: 18px;
  box-shadow: 0 18px 48px rgba(0,0,0,.28);
}
.hero h1 { margin: 4px 0 8px; font-size: clamp(2rem, 7vw, 4rem); line-height: .95; }
.eyebrow { color: #f59e0b; text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; }
.facts { display: grid; grid-template-columns: 120px 1fr; gap: 10px; }
dt { color: #9ca3af; }
dd { margin: 0; overflow-wrap: anywhere; }
form { display: grid; gap: 14px; }
label { display: grid; gap: 7px; color: #d1d5db; }
input {
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 14px;
  padding: 12px 14px;
  background: rgba(0,0,0,.28);
  color: #fff;
}
button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  background: #374151;
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
button.primary { background: #f59e0b; color: #111827; }
a.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 999px;
  padding: 12px 18px;
  background: #374151;
  color: #fff;
  font-weight: 700;
}
a.button.primary { background: #f59e0b; color: #111827; }
button:disabled { opacity: .55; cursor: not-allowed; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }
.result {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  padding: 14px;
  border-radius: 14px;
  background: rgba(0,0,0,.35);
}
.note { color: #cbd5e1; }
.warning { border-color: rgba(245,158,11,.35); }
.provider-notice {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid rgba(245,158,11,.42);
  border-radius: 18px;
  background: rgba(245,158,11,.10);
}
.provider-notice p { color: #fde68a; margin: 8px 0 14px; }