/* ========================================
   上場事例カードUI - プロフェッショナルデザイン
   ======================================== */

/* ========================================
   ヒーローセクション - 外資系コンサル風
   ======================================== */
.cases-hero {
    background: #F7F8FA;
    padding: 6rem 0 5rem;
    min-height: 60vh;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #e5e7eb;
}

.cases-hero .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.cases-hero-title {
    font-size: 48px;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 2rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.cases-hero-subtitle {
    font-size: 18px;
    color: #4b5563;
    line-height: 1.7;
    margin: 0 0 1.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
}

.cases-hero-note {
    font-size: 13px;
    color: #9ca3af;
    margin: 0;
    font-weight: 400;
    line-height: 1.5;
}

/* レスポンシブ: タブレット */
@media (max-width: 992px) {
    .cases-hero {
        padding: 5rem 0 4rem;
        min-height: 50vh;
    }
    
    .cases-hero-title {
        font-size: 38px;
    }
    
    .cases-hero-subtitle {
        font-size: 16px;
    }
}

/* レスポンシブ: モバイル */
@media (max-width: 768px) {
    .cases-hero {
        padding: 4rem 0 3rem;
        min-height: auto;
    }
    
    .cases-hero .container {
        padding: 0 1.5rem;
    }
    
    .cases-hero-title {
        font-size: 32px;
        margin-bottom: 1.5rem;
    }
    
    .cases-hero-subtitle {
        font-size: 15px;
        line-height: 1.6;
    }
    
    .cases-hero-note {
        font-size: 12px;
    }
}

/* カードグリッド */
.cases-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
}

/* 企業カード */
.company-case-card {
    position: relative;
    display: block;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 2rem 1.75rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    overflow: hidden;
}

.company-case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1f2937 0%, #4b5563 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.company-case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
    border-color: #d1d5db;
}

.company-case-card:hover::before {
    transform: scaleX(1);
}

/* バッジ */
.card-badge {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    background: #1f2937;
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.card-badge.badge-spac {
    background: #4b5563;
}

.card-badge.badge-other {
    background: #6b7280;
}

.card-badge.badge-delisted {
    background: #9ca3af;
    color: #ffffff;
}

/* 企業名 */
.card-company-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.5rem;
    line-height: 1.4;
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
}

/* ティッカー */
.card-ticker {
    font-size: 0.9rem;
    font-weight: 600;
    color: #6b7280;
    margin-bottom: 1.5rem;
    font-family: 'Inter', monospace;
    letter-spacing: 0.02em;
}

/* 情報行 */
.card-info-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.card-info-item {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.info-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: #1f2937;
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
}

/* 矢印アイコン */
.card-arrow {
    position: absolute;
    bottom: 1.75rem;
    right: 1.75rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f9fafb;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.card-arrow i {
    font-size: 0.875rem;
    color: #6b7280;
    transition: all 0.3s ease;
}

.company-case-card:hover .card-arrow {
    background: #1f2937;
    transform: scale(1.1);
}

.company-case-card:hover .card-arrow i {
    color: #ffffff;
    transform: translateX(3px);
}

/* その他企業カード（薄いグレー背景） */
.company-case-card.card-other {
    background: #f9fafb;
    border-color: #e5e7eb;
}

.company-case-card.card-other:hover {
    background: #ffffff;
}

/* 上場廃止カード */
.company-case-card.card-delisted {
    background: #f9fafb;
    opacity: 0.85;
}

.company-case-card.card-delisted .card-company-name,
.company-case-card.card-delisted .info-value {
    color: #6b7280;
}

.company-case-card.card-delisted:hover {
    opacity: 1;
}

/* ========================================
   レスポンシブ対応
   ======================================== */

/* タブレット（2列） */
@media (max-width: 1024px) {
    .cases-card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.75rem;
    }
}

/* スマホ（1列） */
@media (max-width: 768px) {
    .cases-card-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .company-case-card {
        padding: 1.75rem 1.5rem;
    }
    
    .card-company-name {
        font-size: 1.1rem;
    }
    
    .card-info-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
}

/* 小型スマホ */
@media (max-width: 480px) {
    .company-case-card {
        padding: 1.5rem 1.25rem;
    }
    
    .card-company-name {
        font-size: 1rem;
    }
    
    .card-ticker {
        font-size: 0.85rem;
    }
}