/* =========================================
           カスタマイズ設定エリア (CSS)
           色を変更したい場合はここを編集してください
           ========================================= */
        :root {
            /* アクセントカラー (文字色や強調に使われます) */
            --accent-color: #ff3333; 
            
            /* 基本の文字色 */
            --text-color: #111;      
            
            /* 背景色 */
            --bg-color: #fff;        
            
            /* グリッド線の色 */
            --grid-color: #eee;      
        }

        /* --- 基本設定 --- */
        body { 
            font-family: 'Inter', 'Noto Sans JP', sans-serif; 
            background-color: var(--bg-color); 
            color: var(--text-color); 
            margin: 0; padding: 0; 
            overflow-x: hidden; 
        }
        
        /* --- 背景グリッド装飾 --- */
        .grid-bg { position: fixed; top: 0; left: 0; width: 100%; height: 100%; display: grid; grid-template-columns: 1fr 1fr; pointer-events: none; z-index: 0; }
        .grid-line { border-right: 1px solid var(--grid-color); }
        
        /* --- レイアウトコンテナ --- */
        .container { max-width: 1400px; margin: 0 auto; position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; min-height: 100vh; }
        
        /* --- 左パネル（固定サイドバー） --- */
        .left-panel { padding: 4rem; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; justify-content: space-between; box-sizing: border-box; background: var(--bg-color); }
        .brand { font-size: 5rem; font-weight: 900; line-height: 0.8; letter-spacing: -0.04em; text-transform: uppercase; margin: 0; }
        .brand span { color: var(--accent-color); }
        .role { font-weight: 700; font-size: 1.2rem; margin-top: 1rem; border-top: 4px solid var(--text-color); padding-top: 1rem; display: inline-block; }
        .bio { max-width: 400px; font-size: 1rem; line-height: 1.6; margin-top: 2rem; color: #555; }
        
        /* --- 右パネル（ギャラリー） --- */
        .right-panel { padding: 4rem 4rem 4rem 0; border-left: 1px solid var(--grid-color); }
        
        /* 作品アイテム */
        .work-item { 
            margin-bottom: 6rem; cursor: pointer; position: relative; 
            opacity: 0; transform: translateY(40px); 
            transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1); 
        }
        .work-item.is-visible { opacity: 1; transform: translateY(0); }
        
        .work-number { font-size: 1.5rem; font-weight: 900; color: var(--accent-color); position: absolute; top: -1rem; left: -3rem; transition: transform 0.3s ease; }
        .work-img-wrapper { overflow: hidden; width: 100%; aspect-ratio: 3/2; background: #f0f0f0; }
        .work-img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(100%); transition: filter 0.5s, transform 0.5s; display: block; }
        
        /* ホバーエフェクト */
        .work-item:hover .work-img { filter: grayscale(0%); transform: scale(1.03); }
        .work-item:hover .work-number { transform: translateX(5px); }
        
        .work-title { font-size: 2rem; font-weight: 900; margin: 1rem 0 0.5rem; text-transform: uppercase; letter-spacing: -0.02em; }
        .work-cat { font-size: 0.9rem; font-weight: 700; color: #888; }
        
        /* --- リンク --- */
        .links-list { list-style: none; padding: 0; margin: 0; }
        .links-list li { margin-bottom: 0.5rem; opacity: 0; animation: slideIn 0.8s forwards; }
        .links-list li a { font-weight: 700; text-decoration: none; color: var(--text-color); font-size: 1.2rem; display: block; transition: color 0.2s; }
        .links-list li a:hover { color: var(--accent-color); text-decoration: underline; }

        /* --- アニメーション定義 --- */
        .animate-init { opacity: 0; animation: slideIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
        @keyframes slideIn { from { opacity: 0; transform: translateX(-30px); } to { opacity: 1; transform: translateX(0); } }

        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }

        /* --- モーダル（詳細表示） --- */
        .modal {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(255, 51, 51, 0.95); /* デフォルト赤の透過背景（JSで変更可能にするため固定） */
            background: color-mix(in srgb, var(--accent-color), transparent 5%); /* CSS変数対応 */
            z-index: 100;
            display: flex; align-items: center; justify-content: center;
            opacity: 0; pointer-events: none;
            transition: opacity 0.3s ease;
            padding: 2rem; box-sizing: border-box;
        }
        .modal.active { opacity: 1; pointer-events: auto; }

        .modal-content {
            background: var(--bg-color);
            padding: 2.5rem;
            max-width: 900px; width: 100%;
            box-shadow: 0 20px 50px rgba(0,0,0,0.3);
            display: flex; flex-direction: column;
            transform: translateY(20px); transition: transform 0.4s ease;
            max-height: 90vh; overflow-y: auto;
        }
        .modal.active .modal-content { transform: translateY(0); }

        .modal-img { 
            width: 100%; height: auto; 
            max-height: 60vh; object-fit: contain; 
            display: block; margin: 0 auto 1.5rem; 
            background: #eee;
        }

        .close-btn {
            margin-top: 1.5rem; background: var(--text-color); color: var(--bg-color);
            border: none; padding: 1rem 2rem; font-weight: 700; cursor: pointer;
            align-self: flex-start; transition: background 0.2s;
        }
        .close-btn:hover { background: var(--accent-color); }

        /* --- スマートフォン・タブレット対応 --- */
        @media (max-width: 900px) {
            .container { grid-template-columns: 1fr; }
            .left-panel { position: relative; height: auto; padding: 2rem; border-bottom: 1px solid var(--grid-color); min-height: auto; }
            .brand { font-size: 3.5rem; }
            .right-panel { padding: 2rem; border-left: none; }
            .work-number { position: static; display: block; margin-bottom: 0.5rem; color: var(--accent-color); font-size: 1.2rem; }
            .grid-bg { display: none; }
            
            .modal { padding: 1rem; align-items: center; } 
            .modal-content { padding: 1.5rem; max-height: 85vh; }
            .modal-img { max-height: 40vh; margin-bottom: 1rem; } 
            .work-title { font-size: 1.5rem; }
        }