/* フォントとリセット */
body {
    margin: 0;
    font-family: 'Helvetica Neue', sans-serif;
    background: #0b6857;
    color: #ffffff;
  }
  
  header {
    text-align: center;
    padding: 2rem 1rem;
    background: #0b6857;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
  }
  
  h1 {
    font-size: 2rem;
    color: #f8f8f8;
  }
  
  /* グリッドレイアウト */
  .grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 2rem;
  }
  
  /* アプリカード */
  .app-card {
    background: #1f2125;
    border-radius: 1rem;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
  }
  
  .app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.5);
  }
  
  .app-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-bottom: 1px solid #333;
  }
  
  .app-card .content {
    padding: 1rem;
  }
  
  .app-card h2 {
    font-size: 1.2rem;
    margin: 0.5rem 0;
    color: #ffffff;
  }
  
  .app-card p {
    font-size: 0.95rem;
    color: #cccccc;
    min-height: 60px;
  }
  
  .app-card a {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background: #007aff;
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: bold;
    transition: background 0.3s;
  }
  
  .app-card a:hover {
    background: #007aff;
  }
  
  footer {
    text-align: center;
    padding: 1rem;
    background: #1a1c20;
    font-size: 0.9rem;
    color: #aaa;
  }

  /* お問い合わせフォーム用 */
.contact-container {
    max-width: 600px;
    margin: 3rem auto;
    padding: 2rem;
    background: #1f2125;
    border-radius: 1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  }
  
  .contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
  }
  
  .contact-form label {
    font-weight: bold;
    color: #ddd;
  }
  
  .contact-form input,
  .contact-form textarea {
    padding: 0.8rem;
    border-radius: 0.5rem;
    border: none;
    font-size: 1rem;
    background: #2a2d33;
    color: white;
  }
  
  .contact-form input:focus,
  .contact-form textarea:focus {
    outline: 2px solid #007aff;
  }
  
  .contact-form button {
    background: #007aff;
    border: none;
    padding: 0.8rem 1.2rem;
    color: white;
    font-size: 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background 0.3s;
  }
  
  .contact-form button:hover {
    background: #005fd3;
  }
  
  .form-status {
    font-size: 0.9rem;
    color: #55ff99;
  }

  
  .contact-button-container {
    text-align: center;
    margin-top: 3rem;
  }
  
  .contact-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: #007aff;
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: background 0.3s;
  }
  
  .contact-button:hover {
    background: #005fd3;
  }