body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: #e5e7eb;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card {
  width: 100%;
  max-width: 420px;
  background: #111827;
  border: 1px solid #1f2937;
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}

h1 {
  margin: 0 0 8px;
  font-size: 28px;
}

p {
  margin: 0 0 22px;
  color: #9ca3af;
  line-height: 1.5;
}

label {
  display: block;
  margin: 14px 0 6px;
  color: #cbd5e1;
  font-size: 14px;
}

input {
  width: 100%;
  box-sizing: border-box;
  padding: 13px 14px;
  border-radius: 12px;
  border: 1px solid #334155;
  background: #020617;
  color: #e5e7eb;
  font-size: 15px;
  outline: none;
}

button {
  width: 100%;
  margin-top: 20px;
  padding: 13px 14px;
  border: 0;
  border-radius: 12px;
  background: #22c55e;
  color: #052e16;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
}

.error {
  display: none;
  margin-top: 14px;
  color: #fecaca;
  background: #7f1d1d;
  border: 1px solid #991b1b;
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 14px;
}

.auth-switch {
  margin-top: 16px;
  text-align: center;
  color: #9ca3af;
  font-size: 14px;
}

.auth-switch a {
  color: #22c55e;
  text-decoration: none;
  font-weight: 700;
}

.auth-switch a:hover {
  text-decoration: underline;
}

.success {
  margin: 16px 0;
  padding: 12px 14px;
  border-radius: 12px;
  background: #e8f7ee;
  color: #146c2e;
  font-size: 14px;
  line-height: 1.4;
  border: 1px solid #bfe8ca;
}