* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: linear-gradient(135deg, #0079bf 0%, #5067c5 100%);
  min-height: 100vh;
}

.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header i {
  font-size: 48px;
  color: #0079bf;
  margin-bottom: 12px;
}

.login-header h1 {
  font-size: 28px;
  color: #172b4d;
  margin: 0;
}

.login-card h2 {
  font-size: 16px;
  color: #5e6c84;
  text-align: center;
  margin-bottom: 24px;
  font-weight: 500;
}

.form-group {
  margin-bottom: 16px;
}

.form-group input {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid #dfe1e6;
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: #0079bf;
  box-shadow: 0 0 0 2px rgba(0, 121, 191, 0.2);
}

.form-group input::placeholder {
  color: #a5adba;
}

.error-message {
  background: #ffebe6;
  color: #eb5a46;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 16px;
  text-align: center;
}

.btn-login {
  width: 100%;
  padding: 12px;
  background: #0079bf;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-login:hover {
  background: #026aa7;
}

.btn-login:disabled {
  background: #a5adba;
  cursor: not-allowed;
}

.form-footer {
  text-align: center;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid #dfe1e6;
}

.form-footer p {
  color: #5e6c84;
  font-size: 14px;
  margin: 0;
}

.form-footer a {
  color: #0079bf;
  text-decoration: none;
  font-weight: 500;
}

.form-footer a:hover {
  text-decoration: underline;
}

.hidden {
  display: none !important;
}

/* Mobile responsive */
@media (max-width: 480px) {
  .login-card {
    padding: 32px 24px;
  }

  .login-header i {
    font-size: 40px;
  }

  .login-header h1 {
    font-size: 24px;
  }
}