/* バージョン表示スタイル */
.version-display {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    cursor: pointer;
    user-select: none;
}

.version-display:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.3);
}

.version-display .version-label {
    opacity: 0.8;
    margin-right: 4px;
}

.version-display .version-number {
    font-weight: 700;
    color: #fff;
}

.version-display .build-date {
    display: block;
    font-size: 10px;
    opacity: 0.7;
    margin-top: 2px;
    text-align: center;
}

/* 詳細情報表示（クリック時） */
.version-details {
    position: fixed;
    top: 70px;
    right: 20px;
    z-index: 9998;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 15px;
    border-radius: 8px;
    font-size: 11px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    min-width: 250px;
    max-width: 350px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: none;
    animation: slideInDown 0.3s ease-out;
}

.version-details.show {
    display: block;
}

.version-details h4 {
    margin: 0 0 10px 0;
    color: #667eea;
    font-size: 13px;
    font-weight: bold;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 5px;
}

.version-details .version-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    padding: 2px 0;
}

.version-details .version-key {
    color: #ccc;
}

.version-details .version-value {
    color: #fff;
    font-weight: 600;
}

.version-details .feature-list {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.version-details .feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 4px;
    font-size: 10px;
}

.version-details .feature-item::before {
    content: "✓";
    color: #4ade80;
    font-weight: bold;
    margin-right: 6px;
}

.version-details .close-btn {
    position: absolute;
    top: 5px;
    right: 8px;
    background: none;
    border: none;
    color: #ccc;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.version-details .close-btn:hover {
    color: #fff;
}

/* アニメーション */
@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* モバイル対応 */
@media (max-width: 768px) {
    .version-display {
        top: 10px;
        right: 10px;
        padding: 6px 12px;
        font-size: 11px;
    }
    
    .version-display .build-date {
        font-size: 9px;
    }
    
    .version-details {
        top: 60px;
        right: 10px;
        left: 10px;
        width: auto;
        min-width: auto;
        max-width: none;
        font-size: 10px;
    }
    
    .version-details .version-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 2px;
    }
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
    .version-display {
        background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
        border-color: rgba(255, 255, 255, 0.3);
    }
    
    .version-details {
        background: rgba(0, 0, 0, 0.95);
        border-color: rgba(255, 255, 255, 0.3);
    }
}

/* 非表示状態 */
.version-display.hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.8) translateY(-10px);
}

/* 開発モード表示 */
.version-display.dev-mode {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    animation: pulse 2s infinite;
}

.version-display.dev-mode::before {
    content: "🚧";
    margin-right: 4px;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}