/* リリースノートページ専用スタイル */

/* ヒーローセクション */
.releases-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
}

.releases-hero .hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.releases-hero .hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.releases-hero .hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* リリースセクション */
.releases-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.release-section {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 1px solid #e5e7eb;
}

.release-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.release-title-group h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.version-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-right: 0.75rem;
}

.version-badge.version-major {
    background-color: #dc2626;
    color: white;
}

.version-badge.version-feature {
    background-color: var(--secondary-color);
    color: white;
}

.version-badge.version-improvement {
    background-color: #3b82f6;
    color: white;
}

.version-badge.version-maintenance {
    background-color: #6b7280;
    color: white;
}

.version-badge.version-hotfix {
    background-color: #f59e0b;
    color: white;
}

.release-date {
    color: #6b7280;
    font-size: 0.95rem;
}

.release-type-badge {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.release-type-badge.type-major {
    background-color: #fee2e2;
    color: #dc2626;
}

.release-type-badge.type-feature {
    background-color: #d1fae5;
    color: #059669;
}

.release-type-badge.type-improvement {
    background-color: #dbeafe;
    color: #2563eb;
}

.release-type-badge.type-maintenance {
    background-color: #f3f4f6;
    color: #374151;
}

.release-type-badge.type-hotfix {
    background-color: #fef3c7;
    color: #d97706;
}

/* リリース概要 */
.release-summary {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    border-left: 4px solid var(--primary-color);
}

.release-summary p {
    margin: 0;
    font-size: 1.1rem;
    line-height: 1.6;
    color: #374151;
}

/* セクション共通 */
.release-section-content {
    margin-bottom: 2rem;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.section-icon {
    font-size: 1.2rem;
}

/* 機能リスト */
.feature-list, .improvement-list, .bugfix-list {
    display: grid;
    gap: 1rem;
}

.feature-item, .improvement-item, .bugfix-item {
    background: #f9fafb;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.feature-title, .improvement-title, .bugfix-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1f2937;
}

.feature-description, .improvement-description, .bugfix-description {
    color: #4b5563;
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.feature-technical, .improvement-technical, .bugfix-technical {
    font-size: 0.9rem;
    color: #6b7280;
    background: #f3f4f6;
    padding: 0.75rem;
    border-radius: 6px;
    border-left: 3px solid #d1d5db;
}

/* 技術情報 */
.technical-notes {
    list-style: none;
    padding: 0;
}

.technical-note {
    background: #f3f4f6;
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 0.5rem;
    border-left: 3px solid var(--secondary-color);
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

/* 区切り線 */
.release-divider {
    border: none;
    height: 2px;
    background: linear-gradient(90deg, transparent, #e5e7eb, transparent);
    margin: 3rem 0;
}

/* バージョンナビゲーション */
.version-navigation {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    max-height: 60vh;
    overflow-y: auto;
    min-width: 200px;
    z-index: 100;
}

.nav-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
    text-align: center;
}

.version-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.version-nav-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.version-nav-item:hover {
    background-color: #f3f4f6;
    transform: translateY(-1px);
}

.version-nav-item.type-major {
    border-left: 3px solid #dc2626;
}

.version-nav-item.type-feature {
    border-left: 3px solid var(--secondary-color);
}

.version-nav-item.type-improvement {
    border-left: 3px solid #3b82f6;
}

.nav-version {
    font-weight: 600;
    color: #1f2937;
}

.nav-date {
    font-size: 0.8rem;
    color: #6b7280;
}

/* CTAセクション */
.releases-cta {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 4rem 2rem;
    text-align: center;
}

.releases-cta .cta-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1f2937;
}

.releases-cta .cta-description {
    font-size: 1.1rem;
    color: #4b5563;
    margin-bottom: 2rem;
}

.releases-cta .cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.releases-cta .cta-features {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.releases-cta .feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #4b5563;
}

.releases-cta .feature-icon {
    font-size: 1.2rem;
}

/* フィードバックセクション */
.feedback-section {
    background: #1f2937;
    color: white;
    padding: 3rem 2rem;
    text-align: center;
}

.feedback-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feedback-description {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.feedback-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.feedback-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.feedback-btn:hover {
    background: #7c3aed;
    transform: translateY(-2px);
}

/* 空状態 */
.releases-empty {
    text-align: center;
    padding: 4rem 2rem;
}

.releases-empty .empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.releases-empty h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1f2937;
}

.releases-empty p {
    color: #6b7280;
    margin-bottom: 2rem;
}

/* レスポンシブ対応 */
@media (max-width: 1024px) {
    .version-navigation {
        display: none;
    }
}

@media (max-width: 768px) {
    .releases-hero {
        padding: 3rem 1rem;
    }
    
    .releases-hero .hero-title {
        font-size: 2rem;
    }
    
    .releases-content {
        padding: 2rem 1rem;
    }
    
    .release-section {
        padding: 1.5rem;
    }
    
    .release-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .releases-cta .cta-features {
        flex-direction: column;
        align-items: center;
    }
    
    .feedback-buttons {
        flex-direction: column;
        align-items: center;
    }
}