@charset "UTF-8";
/*
    Template: swell
    Theme Name: SWELL CHILD - Ojuken Lab
    Version: 2.2.0
*/

/**
 * お受験ラボ トップページ スタイル
 * 
 * 修正内容:
 * - JSとの連携（lab-animate クラス）
 * - 余白の最適化
 * - ヒーローサイズの縮小
 * - アクセシビリティ対応
 */

/* =========================================
   CSS変数
   ========================================= */
:root {
    /* カラー */
    --lab-main: #0f2350;
    --lab-main-light: #1a3a6e;
    --lab-gold: #b8965c;
    --lab-gold-light: #d4b574;
    --lab-gold-bg: rgba(184, 150, 92, 0.08);
    
    --lab-bg: #fdfcfa;
    --lab-bg-alt: #f5f3ef;
    --lab-bg-warm: #fffbf5;
    --lab-surface: #ffffff;
    
    --lab-text: #2c2c2c;
    --lab-text-light: #5a5a5a;
    --lab-text-muted: #888;
    --lab-border: #e8e6e2;
    
    /* フォント */
    --lab-font-display: "Shippori Mincho", "Yu Mincho", serif;
    --lab-font-body: "Noto Sans JP", "Hiragino Sans", sans-serif;
    
    /* サイズ */
    --lab-max-width: 1100px;
    --lab-hero-height: clamp(280px, 40vh, 400px);
    
    /* スペース */
    --lab-gap-sm: 0.75rem;
    --lab-gap-md: 1.5rem;
    --lab-gap-lg: 2.5rem;
    --lab-gap-xl: 4rem;
    
    /* シャドウ */
    --lab-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --lab-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    
    /* アニメーション */
    --lab-ease: cubic-bezier(0.16, 1, 0.3, 1);
    --lab-duration: 0.4s;
}

/* ダークモード */
@media (prefers-color-scheme: dark) {
    :root {
        --lab-main: #8facd4;
        --lab-main-light: #a8c1e0;
        --lab-gold: #d4b574;
        --lab-gold-bg: rgba(212, 181, 116, 0.15);
        
        --lab-bg: #121820;
        --lab-bg-alt: #1a222c;
        --lab-bg-warm: #1c2430;
        --lab-surface: #1e2832;
        
        --lab-text: #e8e6e2;
        --lab-text-light: #b0aca4;
        --lab-text-muted: #808080;
        --lab-border: #2a3440;
        
        --lab-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        --lab-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.4);
    }
}

/* =========================================
   ベース
   ========================================= */
*, *::before, *::after {
    box-sizing: border-box;
}

.lab-container {
    font-family: var(--lab-font-body);
    color: var(--lab-text);
    background: var(--lab-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

/* フォーカス */
:focus-visible {
    outline: 2px solid var(--lab-gold);
    outline-offset: 2px;
}

/* スクリーンリーダー用 */
.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* =========================================
   アニメーション（JS連携）
   ========================================= */

/* 初期状態（JSが有効な場合のみ適用） */
.js-enabled .lab-animate {
    opacity: 0;
    transform: translateY(20px);
}

/* 表示状態 */
.lab-animate.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity var(--lab-duration) var(--lab-ease),
                transform var(--lab-duration) var(--lab-ease);
}

/* スタガーアニメーション */
.lab-animate:nth-child(1) { transition-delay: 0s; }
.lab-animate:nth-child(2) { transition-delay: 0.1s; }
.lab-animate:nth-child(3) { transition-delay: 0.2s; }
.lab-animate:nth-child(4) { transition-delay: 0.3s; }
.lab-animate:nth-child(5) { transition-delay: 0.4s; }
.lab-animate:nth-child(6) { transition-delay: 0.5s; }

/* モーション軽減 */
@media (prefers-reduced-motion: reduce) {
    .lab-animate {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}

/* =========================================
   セクション
   ========================================= */
.lab-section {
    padding: var(--lab-gap-xl) clamp(1rem, 4vw, 2rem);
}

.lab-bg-alt {
    background: var(--lab-bg-alt);
}

.lab-bg-warm {
    background: var(--lab-bg-warm);
}

.lab-inner {
    max-width: var(--lab-max-width);
    margin: 0 auto;
}

/* =========================================
   見出し
   ========================================= */
.lab-title-area {
    text-align: center;
    margin-bottom: var(--lab-gap-lg);
}

.lab-title-en {
    display: block;
    font-size: 0.8rem;
    color: var(--lab-gold);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.lab-title-ja {
    font-family: var(--lab-font-display);
    font-size: clamp(1.4rem, 4vw, 1.75rem);
    font-weight: 600;
    color: var(--lab-main);
    margin: 0;
}

.lab-title-line {
    width: 50px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--lab-gold), transparent);
    margin: var(--lab-gap-md) auto 0;
}

.lab-section-desc {
    text-align: center;
    color: var(--lab-text-light);
    max-width: 600px;
    margin: 0 auto var(--lab-gap-lg);
}

/* サブセクション */
.lab-subsection {
    margin-bottom: var(--lab-gap-xl);
}

.lab-subsection:last-child {
    margin-bottom: 0;
}

.lab-subsection-title {
    text-align: center;
    font-family: var(--lab-font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--lab-main);
    margin: 0 0 var(--lab-gap-sm);
}

.lab-subsection-desc {
    text-align: center;
    color: var(--lab-text-light);
    margin: 0 0 var(--lab-gap-md);
}

/* =========================================
   ヒーロー
   ========================================= */
.lab-hero {
    position: relative;
    height: var(--lab-hero-height);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    background-size: cover;
    background-position: center;
}

.lab-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(15, 35, 80, 0.6) 0%,
        rgba(15, 35, 80, 0.7) 100%
    );
}

.lab-hero-content {
    position: relative;
    z-index: 1;
    padding: var(--lab-gap-md);
    max-width: 700px;
}

.lab-hero-title {
    font-family: var(--lab-font-display);
    font-size: clamp(1.5rem, 5vw, 2.2rem);
    font-weight: 500;
    line-height: 1.4;
    margin: 0 0 var(--lab-gap-md);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.lab-hero-title span {
    display: block;
}

.lab-hero-accent {
    color: var(--lab-gold-light);
}

.lab-hero-subtitle {
    font-size: clamp(0.85rem, 2vw, 1rem);
    opacity: 0.9;
    margin: 0;
    line-height: 1.8;
}

/* =========================================
   ナビボタン
   ========================================= */
.lab-nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--lab-gap-sm);
    margin-bottom: var(--lab-gap-lg);
}

.lab-nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: var(--lab-gap-md) var(--lab-gap-sm);
    background: var(--lab-surface);
    border: 1px solid var(--lab-border);
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--lab-main);
    transition: transform 0.25s var(--lab-ease),
                box-shadow 0.25s var(--lab-ease),
                border-color 0.25s var(--lab-ease);
}

.lab-nav-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--lab-shadow-hover);
    border-color: var(--lab-gold);
}

.lab-nav-icon {
    font-size: 1.4rem;
}

/* =========================================
   記事カードグリッド
   ========================================= */
.lab-post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--lab-gap-lg);
    margin-bottom: var(--lab-gap-lg);
}

.lab-post-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

/* 記事カード */
.lab-post-card {
    background: var(--lab-surface);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--lab-shadow);
    transition: transform 0.3s var(--lab-ease),
                box-shadow 0.3s var(--lab-ease);
}

.lab-post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--lab-shadow-hover);
}

.lab-post-link {
    display: block;
}

.lab-post-img-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    overflow: hidden;
    background: var(--lab-bg-alt);
    margin: 0;
}

.lab-post-thumb {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s var(--lab-ease);
}

.lab-post-card:hover .lab-post-thumb {
    transform: scale(1.05);
}

.lab-post-body {
    padding: var(--lab-gap-md);
}

.lab-post-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--lab-text-muted);
    margin-bottom: var(--lab-gap-sm);
}

.lab-post-cat {
    background: var(--lab-gold-bg);
    color: var(--lab-gold);
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 600;
}

.lab-post-title {
    font-family: var(--lab-font-display);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.lab-post-title a {
    transition: color 0.2s;
}

.lab-post-title a:hover {
    color: var(--lab-main);
}

/* =========================================
   学校リスト
   ========================================= */
.lab-school-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--lab-gap-md);
}

.lab-school-item {
    display: flex;
    align-items: center;
    gap: var(--lab-gap-md);
    padding: var(--lab-gap-sm) var(--lab-gap-md);
    background: var(--lab-surface);
    border: 1px solid var(--lab-border);
    border-radius: 10px;
    transition: transform 0.25s var(--lab-ease),
                border-color 0.25s var(--lab-ease),
                box-shadow 0.25s var(--lab-ease);
}

.lab-school-item:hover {
    transform: translateX(5px);
    border-color: var(--lab-gold);
    box-shadow: var(--lab-shadow);
}

.lab-school-thumb {
    width: 70px;
    height: 70px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
    background: var(--lab-bg-alt);
}

.lab-school-info {
    flex: 1;
    min-width: 0;
}

.lab-school-info h4 {
    font-family: var(--lab-font-display);
    font-size: 0.95rem;
    font-weight: 600;
    margin: 0 0 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.lab-school-info span {
    font-size: 0.75rem;
    color: var(--lab-text-muted);
}

/* =========================================
   テキストリスト
   ========================================= */
.lab-text-list {
    margin-bottom: var(--lab-gap-md);
}

.lab-text-list li {
    border-bottom: 1px solid var(--lab-border);
}

.lab-text-list li:last-child {
    border-bottom: none;
}

.lab-text-list a {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: var(--lab-gap-sm) 0.5rem;
    margin: 0 -0.5rem;
    border-radius: 4px;
    transition: background 0.2s, padding-left 0.25s;
}

.lab-text-list a:hover {
    background: var(--lab-gold-bg);
    padding-left: 1rem;
}

.lab-list-title {
    font-weight: 500;
    line-height: 1.5;
}

.lab-list-date {
    font-size: 0.75rem;
    color: var(--lab-text-muted);
}

/* =========================================
   カラム・カード
   ========================================= */
.lab-column {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--lab-gap-lg);
}

.lab-card {
    background: var(--lab-surface);
    border-radius: 12px;
    padding: var(--lab-gap-lg);
    box-shadow: var(--lab-shadow);
}

.lab-card-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--lab-font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--lab-main);
    margin: 0 0 var(--lab-gap-md);
    padding-bottom: var(--lab-gap-sm);
    border-bottom: 2px solid var(--lab-main);
}

.lab-card-icon {
    font-size: 1.3rem;
}

/* =========================================
   ボタン・リンク
   ========================================= */
.lab-btn-primary {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: var(--lab-main);
    color: #fff;
    border-radius: 30px;
    font-weight: 600;
    transition: transform 0.25s var(--lab-ease),
                box-shadow 0.25s var(--lab-ease);
}

.lab-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--lab-shadow-hover);
}

.lab-btn-outline {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: transparent;
    color: var(--lab-main);
    border: 2px solid var(--lab-main);
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.25s var(--lab-ease);
}

.lab-btn-outline:hover {
    background: var(--lab-main);
    color: #fff;
}

.lab-link-more {
    display: inline-block;
    color: var(--lab-main);
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.lab-link-more:hover {
    color: var(--lab-gold);
}

/* =========================================
   ユーティリティ
   ========================================= */
.lab-text-center {
    text-align: center;
}

.lab-empty {
    text-align: center;
    color: var(--lab-text-muted);
    padding: var(--lab-gap-lg);
    grid-column: 1 / -1;
}

/* =========================================
   レスポンシブ
   ========================================= */
@media (max-width: 900px) {
    .lab-post-grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lab-column {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    :root {
        --lab-hero-height: clamp(220px, 35vh, 300px);
        --lab-gap-xl: 3rem;
    }
    
    .lab-post-grid,
    .lab-post-grid--3 {
        grid-template-columns: 1fr;
        gap: var(--lab-gap-md);
    }
    
    .lab-school-grid {
        grid-template-columns: 1fr;
    }
    
    .lab-nav-grid {
        grid-template-columns: 1fr;
    }
    
    .lab-nav-btn {
        flex-direction: row;
        justify-content: flex-start;
        padding: var(--lab-gap-sm) var(--lab-gap-md);
    }
    
    .lab-card {
        padding: var(--lab-gap-md);
    }
    
    .lab-school-thumb {
        width: 60px;
        height: 60px;
    }
}

/* プリント */
@media print {
    .lab-hero {
        height: auto;
        background: none !important;
        color: #000;
    }
    
    .lab-hero-overlay {
        display: none;
    }
    
    .lab-nav-grid,
    .lab-btn-primary,
    .lab-btn-outline {
        display: none;
    }
    
    .lab-post-card,
    .lab-school-item,
    .lab-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}