* {
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, sans-serif;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(135deg, #020617, #0f172a);
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-wrapper {
  width: 100%;
  max-width: 360px;
}

.login-box {
  background: #fff;
  padding: 32px;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,.2);
  text-align: center;
}

.login-box h2 {
  margin-bottom: 20px;
}

.login-box input {
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 12px;
  border-radius: 8px;
  border: 1px solid #ddd;
}

.login-box button {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 999px;
  background: #2563eb;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.login-box button:hover {
  background: #1d4ed8;
}

.switch {
  margin-top: 12px;
  font-size: 14px;
}

.switch a {
  color: #2563eb;
  text-decoration: none;
}

.hidden {
  display: none;
}

.error {
  color: #dc2626;
  font-size: 14px;
}

.success {
  color: #16a34a;
  font-size: 14px;
}