/* ログインセクションスタイル */
.login-section {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-color: #f0f0f0;
}

.login-container {
  background: #ffffff;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-container h2 {
  margin-bottom: 1.5rem;
  font-size: 2rem;
  color: #333;
}

.input-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.input-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
  color: #333;
}

.input-group input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1rem;
  color: #333;
  transition: border-color 0.3s;
}

.input-group input:focus {
  border-color: #555;
  outline: none;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

.login-btn {
  width: 100%;
  padding: 0.75rem;
  background-color: #333;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.3s;
  margin-top: 1rem;
}

.login-btn:hover {
  background-color: #555;
  transform: translateY(-2px);
}

.login-btn:active {
  background-color: #222;
  transform: translateY(0);
}

/* ログインページのレスポンシブデザイン */
@media (max-width: 576px) {
  .login-container {
    padding: 1.5rem;
    border-radius: 10px;
  }

  .login-container h2 {
    font-size: 1.75rem;
  }

  .input-group input {
    padding: 0.65rem;
    font-size: 0.9rem;
  }

  .login-btn {
    padding: 0.65rem;
    font-size: 0.9rem;
  }
}