body {
  background: linear-gradient(
    135deg,
    var(--login-color1) 0%,
    var(--login-color2) 100%
  );
}

.main-content {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  margin-top: 10px;
}

.theme-switch-container{
  display: flex;
  justify-content: end;
  width: 480px;
  margin-bottom: 1rem;
}

.login-container {
  background: var(--surface-color);
  border-radius: 20px;
  box-shadow: 0 10px 40px var(--shadow);
  max-width: 450px;
  width: 100%;
  overflow: hidden;
}

.login-header {
  background: var(--surface-color);
  padding: 2rem 2rem 2rem;
  text-align: center;
}

.login-header i {
  font-size: 4rem;
  color: var(--text-color);
  margin-bottom: 1rem;
}

.login-header h1 {
  font-size: 1.75rem;
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.login-header p {
  color: var(--text-color);
  font-size: 0.95rem;
}

.login-body {
  padding: 2rem 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-color);
  font-weight: 600;
  font-size: 0.95rem;
}

.input-group {
  position: relative;
}

.input-group i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.form-input {
  width: 100%;
  padding: 1rem 1rem 1rem 3rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: all 0.3s ease;
  background: white;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(159, 207, 233, 0.1);
}

.btn-login {
  width: 100%;
  padding: 1rem;
  background: var(--secondary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
}

.btn-login:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow);
}

.btn-login:active {
  transform: translateY(0);
}

.alert {
  padding: 1rem;
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.alert i {
  font-size: 1.25rem;
}

.alert-error {
  background: #ffebee;
  color: #c62828;
  border-left: 4px solid var(--error-color);
}

.alert-success {
  background: #e8f5e9;
  color: #2e7d32;
  border-left: 4px solid var(--success-color);
}

.login-footer {
  text-align: center;
  padding: 1.5rem 2rem 2rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  border-top: 1px solid var(--border-color);
}

.login-footer a {
  color: var(--primary-dark);
  text-decoration: none;
  font-weight: 600;
}

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

/* Responsividade */
@media (max-width: 480px) {
  .login-container {
    border-radius: 12px;
  }

  .login-header {
    padding: 2rem 1.5rem 1.5rem;
  }

  .login-header h1 {
    font-size: 1.5rem;
  }

  .login-body {
    padding: 2rem 1.5rem;
  }

  .form-input {
    font-size: 16px; /* Previne zoom no iOS */
  }
}