:root {
  --bg: #0c1020;
  --bg-top: #121733;
  --surface: #1a1f2e;
  --surface-2: #141a2a;
  --text: #f5f7ff;
  --muted: #b5bdd8;
  --line: #2b3353;
  --line-strong: #3a4370;
  --accent: #7f4dff;
  --accent-hover: #6f3ff2;
  --accent-2: #f0c23b;
  --danger: #ff6b8a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Segoe UI', Inter, system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, var(--bg-top) 0%, var(--bg) 58%), var(--bg);
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
}

.card {
  width: min(520px, 100%);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.35);
}

.eyebrow {
  margin: 0;
  color: var(--accent-2);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

h1 {
  margin: 0.5rem 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.description {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.code-form {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.75rem;
}

.input-label {
  color: #dbe1ff;
  font-weight: 600;
}

input {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  color: var(--text);
  padding: 0.85rem 1rem;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(127, 77, 255, 0.25);
}

button,
.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: 1px solid #6942d9;
  border-radius: 10px;
  padding: 0.8rem 1rem;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.15s ease;
}

button:hover,
.social-btn:hover {
  transform: translateY(-1px);
  background: var(--accent-hover);
}

.message {
  margin: 0.85rem 0 0;
  min-height: 1.2rem;
  color: var(--muted);
}

.message.error {
  color: var(--danger);
}

.social-grid {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.75rem;
}

.custom-note {
  margin-top: 1.2rem;
  color: var(--muted);
}

.custom-note summary {
  cursor: pointer;
  color: #d5c9ff;
  font-weight: 600;
}

.fallback-btn {
  margin-top: 1.5rem;
}