ダイアログボックス：ホログラフィック｜Dialog Box: Holographic

<div class="container">
    <button class="dialog-btn" id="dialog-btn">Holographic<br>Dialog</button>
</div>

<div id="dialog" class="dialog">
    <div class="dialog-content">
        <div class="holographic-header">
            <div class="holographic-icon">🌟</div>
            <span>Holographic Dialog</span>
        </div>
        <div class="holographic-body">
            <p>This dialog features a futuristic holographic design with iridescent effects, transparency layers, and sci-fi aesthetics that create an immersive experience.</p>
        </div>
        <div class="holographic-footer">
            <button class="holographic-btn-secondary">Cancel</button>
            <button class="holographic-btn-primary">Activate</button>
        </div>
    </div>
</div>

.container {
    text-align: center;
}

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

.dialog {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s;
}

.dialog-content {
    width: 80%;
    max-width: 500px;
    margin: 10% auto;
    background: linear-gradient(135deg, 
        rgba(138, 43, 226, 0.5), 
        rgba(75, 0, 130, 0.5), 
        rgba(138, 43, 226, 0.5));
    border: 2px solid transparent;
    border-radius: 20px;
    padding: 30px;
    position: relative;
    backdrop-filter: blur(10px);
    box-shadow: 
        0 0 30px rgba(138, 43, 226, 0.3),
        0 0 60px rgba(75, 0, 130, 0.2),
        inset 0 0 30px rgba(255, 255, 255, 0.1);
    animation: holographicGlow 3s ease-in-out infinite alternate, floatIn 0.6s ease-out;
}

.holographic-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(138, 43, 226, 0.3);
}

.holographic-icon {
    font-size: 2em;
    animation: holographicFloat 2s ease-in-out infinite;
}

.holographic-header span {
    font-size: 1.5em;
    font-weight: 600;
    background: white;
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: holographicShift 3s ease-in-out infinite;
}

.holographic-body {
    margin-bottom: 25px;
}

.holographic-body p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    font-size: 1em;
    text-shadow: 0 0 10px rgba(138, 43, 226, 0.5);
}

.holographic-footer {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
}

.holographic-btn-secondary,
.holographic-btn-primary {
    padding: 12px 24px;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.holographic-btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(138, 43, 226, 0.3);
}

.holographic-btn-secondary:hover {
    background: rgba(138, 43, 226, 0.2);
    border-color: rgba(138, 43, 226, 0.6);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(138, 43, 226, 0.3);
}

.holographic-btn-primary {
    background: linear-gradient(45deg, #8a2be2, #4b0082);
    color: white;
    border: 1px solid rgba(138, 43, 226, 0.5);
}

.holographic-btn-primary:hover {
    background: linear-gradient(45deg, #4b0082, #8a2be2);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(138, 43, 226, 0.5);
}

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

@keyframes floatIn {
    0% {
        transform: translateY(50px) scale(0.9);
        opacity: 0;
    }
    100% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

@keyframes holographicGlow {
    0% {
        border-color: rgba(138, 43, 226, 0.5);
        box-shadow: 
            0 0 30px rgba(138, 43, 226, 0.3),
            0 0 60px rgba(75, 0, 130, 0.2),
            inset 0 0 30px rgba(255, 255, 255, 0.1);
    }
    100% {
        border-color: rgba(75, 0, 130, 0.8);
        box-shadow: 
            0 0 40px rgba(138, 43, 226, 0.5),
            0 0 80px rgba(75, 0, 130, 0.3),
            inset 0 0 40px rgba(255, 255, 255, 0.2);
    }
}

@keyframes holographicFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

@keyframes holographicShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@media (max-width: 768px) {
    .dialog-content {
        width: 90%;
        margin: 15% auto;
        padding: 15px;
    }
    
    .holographic-header span {
        font-size: 16px;
    }
    
    .holographic-body p {
        font-size: 14px;
    }
}

document.addEventListener('DOMContentLoaded', function() {
    // ダイアログボタンのイベントリスナーを設定
    const dialogBtn = document.getElementById('dialog-btn');
    const dialog = document.getElementById('dialog');
    
    dialogBtn.addEventListener('click', function() {
        dialog.style.display = 'block';
        // スクロールを無効化
        document.body.style.overflow = 'hidden';
    });
    
    // 閉じるボタンのイベントリスナーを設定
    const closeButtons = document.querySelectorAll('.holographic-btn-secondary, .holographic-btn-primary');
    
    closeButtons.forEach(button => {
        button.addEventListener('click', function() {
            dialog.style.display = 'none';
            // スクロールを有効化
            document.body.style.overflow = 'auto';
        });
    });
});