:root {
  --bg: #0f172a;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --error: #dc2626;
  --border: #e2e8f0;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  padding: 16px;
}
.center { color: #fff; font-size: 14px; }
.card {
  background: var(--card);
  width: 100%;
  max-width: 380px;
  padding: 32px;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}
h1 { margin: 0 0 24px; font-size: 22px; text-align: center; }
form { display: flex; flex-direction: column; gap: 16px; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 600; }
input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  outline: none;
}
input:focus { border-color: var(--primary); }
button {
  padding: 11px 12px;
  border: none;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 4px;
}
button:hover { background: var(--primary-hover); }
button:disabled { opacity: .6; cursor: not-allowed; }
.error { color: var(--error); font-size: 13px; margin: 0; }
.muted { color: var(--muted); font-size: 14px; text-align: center; margin: 16px 0 0; }
.email { font-weight: 600; text-align: center; margin: 4px 0 20px; }
.turnstile { min-height: 65px; }