/* --- 変数設定 --- */
:root {
    --color-primary: #F0777E;
    --color-dark: #2D3436;
    --color-white: #FFFFFF;
    --color-bg-light: #FFF9F9;
}

/* --- 全般設定 --- */
body {
    font-family: "Noto Sans JP", sans-serif;
    color: var(--color-dark);
    background-color: var(--color-white);
    line-height: 1.8;
    margin: 0;
}

.container { 
    max-width: 1100px; 
    margin: 0 auto; 
    padding: 0 20px; 
}

/* --- 見出しスタイル (絵筆アイコン付き) --- */
.title-wrapper {
    text-align: center; 
    width: 100%;
    margin-bottom: 50px;
}

.section-title {
    position: relative;
    display: inline-block; 
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    font-weight: bold;
    letter-spacing: 0.1em;
    padding: 10px; 
    margin: 0;
}

.section-title::before {
    content: "";
    position: absolute;
    right: -45px;         
    bottom: 10px;          
    width: 40px;          
    height: 40px;         
    background-image: url('../images/fa7-solid_paintbrush.svg'); /* パスに注意 */
    background-repeat: no-repeat;
    background-size: contain;
    transform: rotate(15deg); 
    z-index: 1;
}

/* --- ヘッダー --- */
.main-header {
    position: fixed; 
    top: 0; 
    width: 100%; 
    height: 70px;
    background: rgba(255, 255, 255, 0.95);
    display: flex; 
    align-items: center; 
    z-index: 2000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transform: translateY(-100%); 
    transition: transform 0.4s ease-in-out;
}

.main-header.is-visible { 
    transform: translateY(0); 
}

.header-inner { 
    width: 100%; 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 0 20px; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}

.logo { font-weight: 900; font-size: 1.5rem; }
.logo img {width: 50px; height: 50px;}
.desktop-nav a { text-decoration: none; color: var(--color-dark); margin-left: 25px; font-weight: 500; transition: color 0.3s; }
.desktop-nav a:hover { color: var(--color-primary); }

/* --- ハンバーガーメニュー --- */
.menu-trigger { display: none; width: 30px; height: 24px; position: relative; background: none; border: none; cursor: pointer; z-index: 2100; }
.menu-trigger span { display: block; width: 100%; height: 2px; background: var(--color-dark); position: absolute; left: 0; transition: 0.3s; }
.menu-trigger span:nth-child(1) { top: 0; }
.menu-trigger span:nth-child(2) { top: 11px; }
.menu-trigger span:nth-child(3) { bottom: 0; }
.menu-trigger.is-active span:nth-child(1) { transform: translateY(11px) rotate(45deg); }
.menu-trigger.is-active span:nth-child(2) { opacity: 0; }
.menu-trigger.is-active span:nth-child(3) { transform: translateY(-11px) rotate(-45deg); }

.mobile-menu { position: fixed; top: 0; right: -70%; width: 70%; height: 100vh; background: var(--color-white); z-index: 2050; transition: 0.4s; padding: 100px 40px; }
.mobile-menu.is-open { right: 0; }
.menu-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); opacity: 0; visibility: hidden; z-index: 2040; transition: 0.3s; }
.menu-overlay.is-visible { opacity: 1; visibility: visible; }
.mobile-menu-links a { display: block; text-decoration: none; color: var(--color-dark); font-size: 1.5rem; margin-bottom: 30px; font-weight: bold; }

/* --- Hero Section (アニメーション用) --- */
.hero { 
    position: relative;
    height: 100vh; 
    background-color: #000; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    overflow: hidden;
}

.hero-text {
    position: relative;
    z-index: 10; /* アニメーションより手前に */
    color: #FFFFFF;
    text-align: center;
    pointer-events: none; /* 下のCanvasにマウスイベントを流す */
}

.hero h1 { 
    font-size: clamp(2.2rem, 7vw, 3.8rem); 
    font-weight: 900; 
    margin-bottom: 15px;
}

#appleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: radial-gradient(circle at center, #1a1a1a 0%, #000 100%);
}

/* --- セクション共通 --- */
section { padding: 100px 0; }

.works {padding-top: 50px;}


/* --- Works 一覧 --- */
.works-grid { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr); 
    gap: 30px; 
}

.work-item { 
    text-align: center; 
    text-decoration: none; 
    color: inherit; 
    display: block; 
    transition: 0.4s; 
}

.work-item img { width: 100%; border-radius: 8px; margin-bottom: 15px; transition: 0.3s; }
.work-item:hover img { transform: scale(1.03); box-shadow: 0 10px 20px rgba(0,0,0,0.1); }
.work-item h4 { font-weight: bold; }

.view-more-container { display: flex; justify-content: flex-end; margin-top: 30px; }
.view-more { font-weight: bold; color: var(--color-primary); text-decoration: none; border-bottom: 2px solid var(--color-primary); }

/* --- About & Cards --- */
.about-cards { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 40px; }
.card { 
    flex: 1; 
    min-width: 250px; 
    background: var(--color-bg-light); 
    padding: 40px 30px; 
    border-radius: 12px; 
    text-align: center; 
}

.card-icon { width: 50px; height: 50px; margin-bottom: 20px; }

/* --- Profile --- */
.profile-flex {
    display: flex;
    align-items: center;
    gap: 50px;
    margin-top: 50px;
}

.profile-image img {
    width: 100%;
    max-width: 400px;
    border-radius: 15px;
}

.profile-name { font-size: 1.8rem; font-weight: 900; }
.profile-name-ja { font-size: 1rem; color: #888; margin-left: 10px; }

/* --- Contact --- */
.contact-form { display: flex; flex-direction: column; max-width: 600px; margin: 0 auto; }
.contact-form input, .contact-form textarea { margin-bottom: 20px; padding: 15px; border: 1px solid #ddd; border-radius: 8px; background: var(--color-bg-light); }
.contact-form button { 
    background: var(--color-primary); color: white; padding: 15px 40px; 
    border-radius: 50px; font-weight: bold; border: none; cursor: pointer; transition: 0.3s;
    margin: 0 auto;
}
.contact-form button:hover { transform: translateY(-3px); box-shadow: 0 5px 15px rgba(240, 119, 126, 0.3); }

/* --- Footer & Back to Top --- */
.footer { text-align: center; padding: 60px 0; font-size: 0.9rem; }

.back-to-top { 
    position: fixed; bottom: 30px; right: 30px; width: 120px; 
    background: none; border: none; cursor: pointer; 
    opacity: 0; visibility: hidden; transition: 0.3s; z-index: 1000;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; }
.back-to-top img { width: 100%; height: auto; }

/* --- Works Category Filter Nav --- */
.filter-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    background: none;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    padding: 8px 25px;
    border-radius: 50px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.filter-btn.is-active {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 4px 12px rgba(240, 119, 126, 0.3);
}

/* --- Work Items Animation Settings --- */
.work-item {
    text-align: center;
    text-decoration: none;
    color: inherit;
    display: block;
    transition: opacity 0.4s ease, transform 0.4s ease; /* JSのフィルター用アニメーション */
}

.work-item.hide {
    display: none;
}


/* 全体レイアウト */
.page-work-detail {
    max-width: 1000px;
    margin: 0 auto;
    padding: 80px 20px;
    color: var(--color-dark);
    background-color: var(--color-white);
}

/* ヒーローセクション（横並び） */
.work-hero {
    display: flex;
    gap: 50px;
    align-items: center;
    margin-bottom: 80px;
}

.work-hero__visual {
    flex: 1.2;
}

.work-hero__visual img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.work-hero__info {
    flex: 1;
}

.client-name {
    font-size: 1rem;
    font-weight: bold;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.work-title {
    font-size: 2.2rem;
    line-height: 1.3;
    margin-bottom: 15px;
    font-family: "serif"; /* 上品な明朝体推奨 */
}

.work-category {
    font-size: 0.9rem;
    color: #888;
    margin-bottom: 25px;
}

.work-lead {
    line-height: 1.8;
    margin-bottom: 35px;
}

/* ボタンデザイン */
.work-link-wrapper .btn-site {
    display: inline-block;
    padding: 15px 50px;
    background-color: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
    font-weight: bold;
    border-radius: 50px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.work-link-wrapper .btn-site:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(240, 119, 126, 0.3);
}

/* 区切り線 */
.detail-divider {
    border: none;
    border-top: 2px solid var(--color-primary);
    margin: 60px 0;
}

/* 制作詳細（ワークセクション） */
.work-section {
    margin-top: 40px;
}

.work-row {
    display: flex;
    padding: 30px 0;
}

.work-label {
    width: 200px;
    font-weight: bold;
    font-size: 1.1rem;
}

.label-en {
    display: block;
    font-size: 0.75rem;
    color: #BBB;
    margin-top: 4px;
    letter-spacing: 0.05em;
}

.work-content {
    flex: 1;
    line-height: 1.8;
}

/* カラーパレットの表示 */
.color-palette {
    display: flex;
    gap: 12px;
    margin: 20px 0;
    height: 60px;
}

.color-item {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    border-radius: 6px;
    font-family: monospace;
}

/* 下部の画像ギャラリー */
.work-img {
    margin-top: 60px;
    background-color: var(--color-bg-light);
    padding: 60px 40px;
    border-radius: 12px;
    
    /* 2枚まで横並びにする設定 */
    display: flex;
    flex-wrap: wrap;      /* 3枚以上ある場合は折り返し */
    justify-content: center;
    align-items: flex-start; /* 上揃えにすることで比率崩れを防止 */
    gap: 30px;            /* 画像間の余白 */
}

.work-img img {
    /* 画像比率を完全に維持 */
    flex: 1;              /* 2枚並んだ時に均等な幅を確保 */
    min-width: 300px;     /* 極端に小さくなるのを防ぐ */
    max-width: calc(50% - 15px); /* 2枚並びの最大幅（gap分を引く） */
    
    height: auto;         /* これにより比率が維持されます */
    object-fit: contain;  
    
    border-radius: 4px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

/* 画像が1枚だけの時、またはスマホ版画像のみの調整 */
.work-img img:only-child {
    max-width: 900px;
}

/* スマホ版デザイン（sp）が混ざる場合のサイズ微調整 */
/* PCと並べた時にスマホ画像が太くなりすぎないように調整 */
.work-img img[src*="-sp"] {
    flex: 0.6;           /* スマホ画像はPC画像より少し幅を狭くすると自然 */
    max-width: 320px;
}

/* ヒーローセクション全体の背景（確認用） */
.hero {
    background-color: var(--color-bg-light);
}

/* 全体のコンテナ */
.scroll-wrapper {
    margin-top: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 線の通り道（枠） */
.scroll-line-box {
    width: 2px;
    height: 70px; /* 線の動く範囲の長さ */
    background-color: rgba(0, 0, 0, 0.05); /* ガイドとなる薄い背景線 */
    position: relative;
    overflow: hidden; /* 枠からはみ出た線を見えなくする */
}

/* 実際に動く線 */
.scroll-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-light);
    
    /* アニメーションの設定 */
    animation: scrollAnim 2.5s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}

/* 上から下へ流れるアニメーションの定義 */
@keyframes scrollAnim {
    0% {
        transform: scaleY(0);
        transform-origin: top;
    }
    40% {
        transform: scaleY(1);
        transform-origin: top;
    }
    60% {
        transform: scaleY(1);
        transform-origin: bottom;
    }
    100% {
        transform: scaleY(0);
        transform-origin: bottom;
    }
}

/* 下の文字 */
.scroll-label {
    color: var(--color-scroll-line);
    margin-top: 15px;
    text-transform: uppercase; /* 小文字で打っても大文字になります */
}

/* --- レスポンシブ --- */
@media (max-width: 768px) {
    .desktop-nav { display: none; }
    .menu-trigger { display: block; }
    .works-grid { grid-template-columns: 1fr; }
    .profile-flex { flex-direction: column; text-align: center; }
    .work-hero {
        flex-direction: column;
        gap: 30px;
    }
    
    .work-row {
        flex-direction: column;
        gap: 15px;
    }
    
    .work-label {
        width: 100%;
    }

    .work-img {
        flex-direction: column;
        align-items: center;
        padding: 40px 15px;
    }
    
    .work-img img {
        max-width: 100%;
        width: 100%;
    }

    .work-img img[src*="-sp"] {
        max-width: 280px; /* スマホで見るときは適切な幅に絞る */
    }
}