:root {
  --nova-bg: #06101c;
  --nova-surface: #0d1b2d;
  --nova-card: #12263d;
  --nova-line: #2a4a6a;
  --nova-text: #eef6ff;
  --nova-muted: #9db6ce;
  --nova-accent: #3b9bff;
  --nova-ok: #3ad15a;
  --nova-bad: #ff6b6b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at 50% -10%, rgba(59, 155, 255, 0.18), transparent 42%),
    var(--nova-bg);
  color: var(--nova-text);
  font-family: "Segoe UI", Tahoma, sans-serif;
}

.signup-header {
  width: min(760px, calc(100% - 32px));
  margin: 28px auto 0;
}

.brand-kicker {
  margin: 0;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--nova-accent);
  font-size: 0.75rem;
}

.signup-header h1 {
  margin: 6px 0 0;
  font-size: 1.6rem;
}

.signup-main {
  width: min(760px, calc(100% - 32px));
  margin: 24px auto 80px;
}

.offer-card,
.signup-form {
  background: var(--nova-surface);
  border: 1px solid var(--nova-line);
  border-radius: 16px;
  padding: 20px 22px;
}

.offer-card p:first-child {
  margin-top: 0;
  font-size: 1.05rem;
}

.offer-card ul {
  margin: 12px 0;
  padding-left: 1.2rem;
}

.hint {
  color: var(--nova-muted);
  font-size: 0.92rem;
}

.signup-form {
  margin-top: 18px;
  display: grid;
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.92rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input:not([type="checkbox"]) {
  background: var(--nova-card);
  border: 1px solid var(--nova-line);
  border-radius: 10px;
  color: var(--nova-text);
  padding: 10px 12px;
  font: inherit;
}

.consent {
  grid-template-columns: auto 1fr;
  align-items: start;
}

button, a.button {
  background: var(--nova-accent);
  color: #041018;
  border: 0;
  border-radius: 10px;
  padding: 12px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.banner {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-radius: 10px;
  background: #3a1d1d;
  color: #ffd6d6;
}

.banner.ok {
  background: #14331c;
  color: #d6ffe0;
}

.hidden { display: none; }

a { color: var(--nova-accent); }