Dialog / 06 ダーク｜Dark Theme

<button id="dialog-btn-6">Dark Theme<br>Dialog</button>
                <div id="dialog-6" class="dialog">
                    <div class="dialog-content">
                        <div class="dark-header">
                            <span>Dark Theme Dialog</span>
                            <button class="dark-close-btn">&times;</button>
                        </div>
                        <div class="dark-body">
                            <p>ダークテーマのダイアログボックスです。</p>
                        </div>
                        <div class="dark-footer">
                            <button class="dark-btn-primary">OK</button>
                        </div>
                    </div>
                </div>

#dialog-btn-6 {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 200px;
    min-height: 60px;
    display: inline-block;
    text-align: center;
    line-height: 1.4;
    vertical-align: middle;
}

#dialog-btn-6:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

#dialog-6 {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    animation: fadeIn-6 0.3s;
}

#dialog-6 .dialog-content {
    background-color: #1a1a1a;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    border: 1px solid #333;
    width: 80%;
    max-width: 500px;
    margin: 8% auto;
    animation: slideInFromTop-6 0.2s ease-out;
}

#dialog-6 .dark-header {
    background-color: #2d2d2d;
    color: #ffffff;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #444;
}

#dialog-6 .dark-header span {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
}

#dialog-6 .dark-close-btn {
    background: none;
    border: none;
    color: #ffffff;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.3s;
}

#dialog-6 .dark-close-btn:hover {
    background-color: #444;
}

#dialog-6 .dark-body {
    padding: 20px;
    background-color: #1a1a1a;
}

#dialog-6 .dark-body p {
    margin: 0;
    line-height: 1.6;
    color: #cccccc;
}

#dialog-6 .dark-footer {
    padding: 20px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    background-color: #2d2d2d;
    border-top: 1px solid #444;
}

#dialog-6 .dark-btn-primary {
    background-color: #007bff;
    color: #ffffff;
    border: 1px solid #007bff;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

#dialog-6 .dark-btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}

@keyframes fadeIn-6 {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInFromTop-6 {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@media (max-width: 768px) {
    #dialog-6 .dialog-content {
        width: 90%;
        margin: 15% auto;
    }

    #dialog-6 .dark-header span {
        font-size: 16px;
    }

    #dialog-6 .dark-body p {
        font-size: 14px;
    }
}

(function () {
      var btn = document.getElementById('dialog-btn-6');
      var dialog = document.getElementById('dialog-6');
      var closeBtns = dialog ? dialog.querySelectorAll('button') : [];

      if (!btn || !dialog) return;

      function openDialog() {
        dialog.style.display = 'block';
        document.body.style.overflow = 'hidden';
      }

      function closeDialog() {
        dialog.style.display = 'none';
        document.body.style.overflow = 'auto';
      }

      btn.addEventListener('click', openDialog);
      
      closeBtns.forEach(function(b) { b.addEventListener('click', closeDialog); });

      dialog.addEventListener('click', function (e) {
        if (e.target === dialog) {
          closeDialog();
        }
      });

      document.addEventListener('keydown', function (e) {
        if (e.key === 'Escape' && dialog.style.display === 'block') {
          closeDialog();
        }
      });
    })();