:root {
  color-scheme: light;
  --accent: #1d4ed8;
  --accent-dark: #1e3a8a;
  --ink: #0f172a;
  --muted: #526071;
  --line: #dbe2ea;
  --surface: #ffffff;
  --background: #f4f7fb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 15%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 34%),
    radial-gradient(circle at 85% 80%, color-mix(in srgb, var(--accent-dark) 12%, transparent), transparent 38%),
    var(--background);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.gate {
  width: min(100%, 560px);
  padding: clamp(30px, 7vw, 54px);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 95%, transparent);
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.12);
}

.brand {
  margin: 0 0 36px;
  color: var(--ink);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 8vw, 58px);
  line-height: 1;
  letter-spacing: -0.055em;
}

.lead {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.confirmations {
  display: grid;
  gap: 12px;
  margin: 30px 0 22px;
}

.confirmation {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbfcfe;
  color: #334155;
  font-size: 14px;
  line-height: 1.5;
  cursor: pointer;
}

.confirmation input {
  width: 18px;
  height: 18px;
  margin: 1px 0 0;
  flex: 0 0 auto;
  accent-color: var(--accent);
}

.actions {
  display: grid;
  gap: 11px;
}

button,
.actions a {
  width: 100%;
  border-radius: 999px;
  padding: 15px 20px;
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 160ms ease, background-color 160ms ease, opacity 160ms ease;
}

button {
  border: 0;
  color: #ffffff;
  background: var(--accent);
  cursor: pointer;
}

button:not(:disabled):hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

button[aria-busy="true"] {
  cursor: wait;
}

.actions a {
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--surface);
}

.actions a:hover {
  transform: translateY(-1px);
}

.fine-print {
  margin: 22px 0 0;
  color: #78869a;
  font-size: 12px;
  line-height: 1.55;
  text-align: center;
}

@media (max-width: 520px) {
  main {
    padding: 16px;
  }

  .gate {
    border-radius: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  button,
  .actions a {
    transition: none;
  }
}