:root {
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  color: var(--heading, #eef2ff);
  background: var(--page-background, #090d18);
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: radial-gradient(circle at top, var(--background-glow, #1c315e) 0, var(--page-background, #090d18) 52%);
}

.card {
  width: min(620px, 100%);
  padding: clamp(26px, 6vw, 52px);
  text-align: center;
  background: var(--card-background, rgba(14, 21, 38, .94));
  border: 1px solid var(--card-border, #2b3959);
  border-radius: 24px;
  box-shadow: 0 25px 80px #0008;
}

.eyebrow {
  margin: 0;
  color: var(--eyebrow, #7dd3fc);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .14em;
}

h1 {
  margin: 10px 0 16px;
  font-size: clamp(2rem, 7vw, 3.35rem);
  line-height: 1.05;
}

.intro {
  margin: 0 0 28px;
  color: var(--description, #bac5db);
  line-height: 1.65;
}

#camera {
  position: fixed;
  width: 1px;
  height: 1px;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

button {
  width: 100%;
  min-height: 58px;
  border: 0;
  border-radius: 15px;
  padding: 15px 20px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

button:hover:not(:disabled) { filter: brightness(1.08); }
button:disabled { opacity: .58; cursor: wait; }

.primary {
  color: var(--button-text, #06111a);
  background: linear-gradient(135deg, var(--button-start, #7dd3fc), var(--button-end, #86efac));
  box-shadow: 0 10px 30px #38bdf833;
}

.status {
  min-height: 1.5em;
  margin: 18px 0 0;
  color: var(--status, #a5b4fc);
}