/* ==========================================================================
   Purple Lounge - Design System & Custom Styles
   Designed for Adult ARMY (30s - 70s)
   ========================================================================== */

/* 1. 変数の定義 (Design Tokens) */
:root {
    /* カラーパレット */
    --bg-primary: #f8f5f0;        /* 温かみのある極上の生成り色 */
    --bg-secondary: #ffffff;      /* 清潔感のあるピュアホワイト */
    --bg-card: rgba(255, 255, 255, 0.85); /* 半透明のカード背景 */
    
    --primary-purple: #705c70;    /* 上品なくすみパープル */
    --primary-purple-dark: #534253; /* より深みのある紫 */
    --primary-purple-light: #f2edf2; /* 非常に淡いくすみパープル */
    --primary-purple-glow: rgba(112, 92, 112, 0.15);
    
    --accent-gold: #b39a74;       /* 上品でアンティーク感のあるゴールド */
    --accent-gold-light: #f4efe6; /* ゴールドを極めて淡くした背景用カラー */
    
    --text-dark: #2a222a;         /* コントラストを抑え目に優しい黒紫 */
    --text-muted: #665b66;        /* 補助用のくすみグレー紫 */
    --text-light: #fdfcfb;        /* 暗い背景用の明るい文字 */
    
    --border-color: rgba(112, 92, 112, 0.15); /* 細く繊細なボーダー */
    --border-gold: rgba(179, 154, 116, 0.3);
    
    /* フォントファミリー */
    --font-serif: "Noto Serif JP", "Shippori Mincho", "Georgia", serif;
    --font-accent: "Playfair Display", "Times New Roman", serif;
    
    /* トランジション & アニメーション時間 */
    --transition-slow: 0.8s cubic-bezier(0.25, 1, 0.5, 1);
    --transition-medium: 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    --transition-fast: 0.2s ease;
    
    /* シャドウ（控えめで柔らかな立体感） */
    --shadow-sm: 0 4px 20px rgba(112, 92, 112, 0.04);
    --shadow-md: 0 10px 30px rgba(112, 92, 112, 0.08);
    --shadow-lg: 0 20px 50px rgba(112, 92, 112, 0.12);
}

/* 2. リセット & ベース設定 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px; /* モバイルファーストの基本 */
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-dark);
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.85; /* ゆったりとした行間で読みやすく */
    letter-spacing: 0.05em; /* 文字と文字の間に優雅な空気感を持たせる */
    overflow-x: hidden;
    word-wrap: break-word;
    -webkit-font-smoothing: antialiased;
}

/* 3. レイアウトユーティリティ */
.container {
    width: 100%;
    max-width: 1100px;
    margin-right: auto;
    margin-left: auto;
    padding-right: 1.5rem;
    padding-left: 1.5rem;
}

.small-container {
    max-width: 760px;
}

.section-padding {
    padding: 6rem 1.5rem; /* スマホやPCで一貫した呼吸ができる余白 */
}

@media (max-width: 768px) {
    .section-padding {
        padding: 4.5rem 1rem;
    }
}

.text-center { text-align: center; }

/* 4. タイポグラフィ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.5;
    letter-spacing: 0.08em;
}

p {
    margin-bottom: 1.5rem;
}

p:last-child {
    margin-bottom: 0;
}

/* 5. ローディングエントランス */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 1.2s cubic-bezier(0.25, 1, 0.5, 1);
}

.loader.loaded {
    opacity: 0;
    pointer-events: none;
}

.loader-content {
    text-align: center;
    padding: 2rem;
}

.loader-logo {
    font-family: var(--font-accent);
    font-size: 2.5rem;
    font-weight: 400;
    font-style: italic;
    color: var(--primary-purple);
    display: block;
    margin-bottom: 1rem;
    letter-spacing: 0.15em;
    opacity: 0;
    transform: translateY(20px);
    animation: loaderFadeUp 1s forwards 0.3s;
}

.loader-line {
    width: 0;
    height: 1px;
    background-color: var(--accent-gold);
    margin: 0.5rem auto 1.5rem;
    animation: loaderLineWidth 1.5s forwards 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.loader-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 0.12em;
    opacity: 0;
    transform: translateY(10px);
    animation: loaderFadeUp 1s forwards 1s;
}

@keyframes loaderFadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes loaderLineWidth {
    to {
        width: 150px;
    }
}

/* 6. ヘッダー */
.site-header {
    width: 100%;
    background-color: rgba(248, 245, 240, 0.9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color var(--transition-medium);
}

.header-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.logo-text {
    font-family: var(--font-accent);
    font-size: 1.5rem;
    font-weight: 400;
    font-style: italic;
    letter-spacing: 0.1em;
    color: var(--primary-purple);
}

.logo-dot {
    width: 5px;
    height: 5px;
    background-color: var(--accent-gold);
    border-radius: 50%;
    margin-left: 6px;
    display: inline-block;
}

.header-owner {
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    color: var(--text-muted);
}

.owner-label {
    opacity: 0.7;
    margin-right: 0.35rem;
}

.owner-name {
    font-weight: 600;
    color: var(--primary-purple);
}

/* 7. ヒーロービジュアル */
.hero-section {
    position: relative;
    height: 75vh;
    min-height: 480px;
    max-height: 700px;
    background-image: url('../assets/lounge_hero.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    text-align: center;
    overflow: hidden;
}

/* ヒーロービジュアルのくすみパープルとオフホワイトを融合させた美しい背景効果 */
.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(248, 245, 240, 0.45) 0%, rgba(112, 92, 112, 0.35) 100%);
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--primary-purple);
    border: 1px solid var(--border-color);
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    background-color: var(--bg-card);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    transform: translateY(20px);
    opacity: 0;
    animation: fadeUpIn 1.2s forwards 1.2s cubic-bezier(0.25, 1, 0.5, 1);
}

.hero-title {
    font-size: 2.25rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    color: var(--text-dark);
    font-weight: 400;
    transform: translateY(30px);
    opacity: 0;
    animation: fadeUpIn 1.4s forwards 1.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.hero-flower-icon {
    color: var(--primary-purple);
    margin: 1.5rem auto;
    opacity: 0;
    transform: scale(0.8);
    animation: fadeInScale 1.5s forwards 1.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.hero-scroll-prompt {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    margin-top: 3rem;
    text-transform: uppercase;
    opacity: 0;
    animation: fadePulse 2s infinite 2.2s;
}

@keyframes fadeUpIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    to {
        opacity: 0.8;
        transform: scale(1);
    }
}

@keyframes fadePulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

@media (max-width: 768px) {
    .hero-section {
        height: 65vh;
        min-height: 400px;
    }
    .hero-title {
        font-size: 1.75rem;
        line-height: 1.6;
    }
}

/* 8. セクション共通パーツ */
.section-header {
    margin-bottom: 4rem;
}

.section-subtitle {
    font-family: var(--font-accent);
    font-size: 1.1rem;
    font-style: italic;
    color: var(--accent-gold);
    display: block;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    position: relative;
    padding-bottom: 0.5rem;
    color: var(--text-dark);
}

.section-divider {
    width: 60px;
    height: 1px;
    background-color: var(--accent-gold);
    margin: 1.5rem auto 0;
}

/* 9. イントロダクション（セクション1） */
.intro-section {
    background-color: var(--bg-secondary);
}

.intro-message {
    text-align: center;
    margin-bottom: 4rem;
}

.lead-paragraph {
    font-size: 1.15rem;
    line-height: 2;
    color: var(--primary-purple-dark);
    margin-bottom: 2rem;
    font-weight: 500;
}

.body-paragraph {
    font-size: 1rem;
    line-height: 1.9;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .lead-paragraph {
        font-size: 1.05rem;
        text-align: left;
    }
    .body-paragraph {
        text-align: left;
    }
}

/* コミュニティの歩き方（大人の嗜み）カード */
.manners-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 3rem;
    border-radius: 12px;
    margin-bottom: 4.5rem;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.manners-badge {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--primary-purple);
    color: var(--text-light);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    padding: 0.5rem 1.8rem;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-md);
    white-space: nowrap;
}

.manners-intro {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 0.5rem;
    margin-bottom: 2.5rem;
}

.manners-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.manners-list li {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.list-num {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-gold);
    border: 1px solid var(--border-gold);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    background-color: var(--bg-secondary);
}

.list-content {
    display: flex;
    flex-direction: column;
}

.list-content strong {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.list-subtext {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .manners-card {
        padding: 2.5rem 1.5rem 2rem;
    }
    .manners-list {
        gap: 1.75rem;
    }
    .list-num {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
}

/* ボタン (CTA) */
.cta-container {
    margin-top: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-family: var(--font-serif);
    font-weight: 500;
    letter-spacing: 0.12em;
    border-radius: 50px;
    transition: all var(--transition-medium);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    gap: 0.75rem;
}

.btn-primary {
    background-color: var(--primary-purple);
    color: var(--text-light);
    border: 1px solid var(--primary-purple);
    padding: 1.1rem 3rem;
}

.btn-primary:hover {
    background-color: var(--primary-purple-dark);
    border-color: var(--primary-purple-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--primary-purple);
    border: 1px solid var(--border-color);
    padding: 1rem 2.2rem;
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--primary-purple-light);
    border-color: var(--primary-purple);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-accent {
    background-color: var(--bg-secondary);
    color: var(--text-dark);
    border: 1px solid var(--accent-gold);
    padding: 1.1rem 3rem;
}

.btn-accent:hover {
    background-color: var(--accent-gold-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    font-size: 1.05rem;
}

.btn-arrow {
    transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

.cta-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 1rem;
    opacity: 0.7;
}

/* 10. 案内板（セクション2） */
.info-section {
    background-color: var(--bg-primary);
}

.schedule-box {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-purple);
    border-radius: 8px;
    padding: 2.5rem;
    margin-bottom: 4rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    box-shadow: var(--shadow-sm);
}

.schedule-icon-wrapper {
    color: var(--primary-purple);
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: var(--primary-purple-light);
}

.schedule-info-text {
    flex-grow: 1;
}

.btn-schedule {
    font-size: 1.05rem;
    font-weight: 600;
    text-align: left;
    margin-bottom: 0.5rem;
    display: inline-block;
    padding: 0.8rem 1.8rem;
}

.schedule-help {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    margin-bottom: 0.25rem;
}

.schedule-link-note {
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.6;
}

@media (max-width: 768px) {
    .schedule-box {
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem 1.5rem;
        gap: 1.25rem;
    }
    .schedule-icon-wrapper {
        width: 48px;
        height: 48px;
    }
    .btn-schedule {
        font-size: 0.95rem;
        padding: 0.7rem 1.2rem;
        line-height: 1.4;
    }
}

/* 注目情報エリアカード */
.featured-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 768px) {
    .featured-info-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.info-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: rgba(112, 92, 112, 0.3);
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-purple-light);
    transition: background-color var(--transition-fast);
}

.info-card:hover::before {
    background-color: var(--primary-purple);
}

.card-tag {
    align-self: flex-start;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--primary-purple);
    background-color: var(--primary-purple-light);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.card-tag.font-accent {
    color: var(--accent-gold);
    background-color: var(--accent-gold-light);
}

.card-title {
    font-size: 1.15rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    font-weight: 600;
    color: var(--text-dark);
}

.card-desc {
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--text-muted);
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.card-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    margin-top: auto;
}

.card-date {
    font-family: var(--font-accent);
    font-size: 0.85rem;
    font-style: italic;
    color: var(--accent-gold);
}

/* 11. オフ会案内（セクション3） */
.meetup-section {
    background-color: var(--bg-secondary);
}

.meetup-concept-box {
    text-align: center;
    margin-bottom: 3.5rem;
}

.meetup-concept-text {
    font-size: 0.95rem;
    color: var(--accent-gold);
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.meetup-quote {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--text-dark);
    font-style: italic;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    padding: 0 1.5rem;
}

.meetup-quote::before, .meetup-quote::after {
    font-family: var(--font-accent);
    font-size: 2rem;
    color: var(--border-gold);
    position: absolute;
    line-height: 1;
}

.meetup-quote::before {
    content: '“';
    left: -0.5rem;
    top: -0.5rem;
}

.meetup-quote::after {
    content: '”';
    right: -0.5rem;
    bottom: -1rem;
}

@media (max-width: 768px) {
    .meetup-quote {
        font-size: 0.95rem;
        line-height: 1.8;
        text-align: left;
    }
}

/* 開催概要カード */
.event-details-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-gold);
    border-radius: 12px;
    padding: 3rem;
    margin-bottom: 4rem;
    box-shadow: var(--shadow-sm);
}

.event-header {
    text-align: center;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-gold);
    padding-bottom: 1.5rem;
}

.event-badge {
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    color: var(--accent-gold);
    border: 1px solid var(--border-gold);
    padding: 0.25rem 1rem;
    border-radius: 50px;
    display: inline-block;
    margin-bottom: 0.75rem;
    background-color: var(--bg-secondary);
}

.event-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-purple-dark);
}

.event-body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.detail-item {
    display: flex;
    align-items: baseline;
    border-bottom: 1px dashed var(--border-color);
    padding-bottom: 1rem;
}

.detail-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.detail-label {
    width: 140px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-purple);
    font-weight: 600;
    flex-shrink: 0;
}

.detail-label svg {
    color: var(--accent-gold);
}

.detail-value {
    flex-grow: 1;
    font-size: 1.05rem;
}

.highlight-text {
    font-weight: 600;
    color: var(--primary-purple-dark);
}

@media (max-width: 768px) {
    .event-details-card {
        padding: 2rem 1.5rem;
    }
    .detail-item {
        flex-direction: column;
        gap: 0.5rem;
    }
    .detail-label {
        width: auto;
    }
    .detail-value {
        font-size: 1rem;
    }
}

/* 12. 管理人メッセージ (Aya's Room) */
.owner-message-section {
    background-color: var(--accent-gold-light);
    padding: 5rem 1.5rem;
}

.owner-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-gold);
    border-radius: 12px;
    padding: 3rem;
    display: flex;
    gap: 2.5rem;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.owner-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: var(--primary-purple);
    color: var(--text-light);
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
    border: 3px solid var(--bg-secondary);
    outline: 1px solid var(--accent-gold);
}

.owner-content {
    flex-grow: 1;
}

.owner-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary-purple-dark);
    margin-bottom: 0.75rem;
}

.owner-text {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .owner-card {
        flex-direction: column;
        padding: 2.5rem 1.5rem;
        text-align: center;
        gap: 1.5rem;
    }
    .owner-avatar {
        width: 70px;
        height: 70px;
        font-size: 1.75rem;
    }
}

/* 13. フッター */
.site-footer {
    background-color: var(--primary-purple-dark);
    color: var(--text-light);
    padding: 4rem 1.5rem;
    border-top: 1px solid var(--border-color);
}

.footer-logo {
    font-family: var(--font-accent);
    font-size: 1.75rem;
    font-style: italic;
    letter-spacing: 0.15em;
    color: var(--bg-primary);
    margin-bottom: 0.5rem;
}

.footer-concept {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.75);
    letter-spacing: 0.08em;
    margin-bottom: 2rem;
}

.footer-divider {
    width: 40px;
    height: 1px;
    background-color: var(--accent-gold);
    margin: 0 auto 2rem;
    opacity: 0.6;
}

.copyright {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.1em;
}

/* 14. フェードイン・インタラクション装飾 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* 15. ブログ・案内板の動的化 & 詳細モーダル用追加スタイル */

/* スケルトン（ローディング中）アニメーション */
.skeleton-card {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--primary-purple-light) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-glow 1.5s infinite;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 100%;
}

@keyframes skeleton-glow {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ホームへ戻るリンクの装飾 */
.nav-back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: var(--font-serif);
    font-size: 0.9rem;
    color: var(--primary-purple);
    font-weight: 500;
    transition: all var(--transition-medium);
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
}

.nav-back-link:hover {
    color: var(--primary-purple-dark);
    border-bottom-color: var(--primary-purple);
}

.nav-back-link svg {
    transition: transform var(--transition-fast);
}

.nav-back-link:hover svg {
    transform: translateX(-4px);
}

/* ブログ用の小ヒーロー */
.blog-hero {
    padding: 5rem 1.5rem 2rem;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.blog-hero-subtitle {
    font-family: var(--font-accent);
    font-size: 1.2rem;
    font-style: italic;
    color: var(--accent-gold);
    display: block;
    margin-bottom: 0.5rem;
}

.blog-hero-title {
    font-size: 2rem;
    font-weight: 500;
    color: var(--text-dark);
    letter-spacing: 0.1em;
}

.blog-hero-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 1.5rem auto 0;
    line-height: 1.8;
}

/* ブログ一覧の垂直スタック */
.blog-posts-vertical-list {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.blog-posts-vertical-list .info-card {
    cursor: pointer;
}

.blog-posts-vertical-list .info-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-gold);
}

/* 動的なカード内の全文非表示（一覧では概要のみ表示） */
.card-content-summary {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-back-bottom {
    margin-top: 5rem;
}

/* ブログ詳細表示用モーダル（極上デザイン） */
.blog-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-medium);
}

.blog-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.blog-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(42, 34, 42, 0.6);
    backdrop-filter: blur(4px);
}

.blog-modal-wrapper {
    position: relative;
    width: 90%;
    max-width: 680px;
    max-height: 85vh;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-gold);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-medium);
}

.blog-modal.active .blog-modal-wrapper {
    transform: scale(1);
}

.blog-modal-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
    padding: 0.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1002;
}

.blog-modal-close:hover {
    color: var(--primary-purple-dark);
}

.blog-modal-container {
    padding: 3rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.blog-modal-header {
    border-bottom: 1px solid var(--border-gold);
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
}

.modal-post-date {
    font-family: var(--font-accent);
    font-size: 0.9rem;
    font-style: italic;
    color: var(--accent-gold);
    margin-left: 1rem;
}

.modal-post-title {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--primary-purple-dark);
    margin-top: 1rem;
    line-height: 1.5;
}

.blog-modal-body {
    flex-grow: 1;
}

.modal-post-content {
    font-size: 1rem;
    line-height: 2;
    color: var(--text-dark);
    white-space: pre-wrap; /* 改行を適切に反映させる設定 */
    letter-spacing: 0.05em;
}

.blog-modal-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    margin-top: 3rem;
}

@media (max-width: 768px) {
    .blog-modal-wrapper {
        width: 95%;
        max-height: 90vh;
    }
    .blog-modal-container {
        padding: 2rem 1.5rem;
    }
    .modal-post-title {
        font-size: 1.15rem;
    }
    .modal-post-content {
        font-size: 0.95rem;
        line-height: 1.85;
    }
}

/* 16. ブログ検索 & カテゴリーフィルター用スタイル */
.blog-filter-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 3.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.search-box-wrapper {
    position: relative;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent-gold);
    pointer-events: none;
}

#blog-search-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3.25rem;
    border: 1px solid var(--border-color);
    border-radius: 50px;
    background-color: var(--bg-primary);
    color: var(--text-dark);
    font-family: var(--font-serif);
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    transition: all var(--transition-medium);
}

#blog-search-input:focus {
    outline: none;
    border-color: var(--accent-gold);
    background-color: var(--bg-secondary);
    box-shadow: 0 0 0 4px var(--primary-purple-glow);
}

.category-tabs-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.category-tab {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-family: var(--font-serif);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-medium);
}

.category-tab:hover {
    border-color: var(--accent-gold);
    color: var(--primary-purple);
    background-color: var(--accent-gold-light);
}

.category-tab.active {
    background-color: var(--primary-purple);
    border-color: var(--primary-purple);
    color: var(--text-light);
    box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
    .blog-filter-container {
        padding: 1.5rem;
        border-radius: 12px;
        margin-bottom: 2.5rem;
    }
    .category-tabs-wrapper {
        gap: 0.5rem;
    }
    .category-tab {
        font-size: 0.8rem;
        padding: 0.45rem 1.15rem;
    }
}