/*
 * Frontend Styles for Ishioka Mirai Case Studies
 * 石岡みらい矯正歯科 症例集フロントエンドスタイル
 * 
 * Version: 2.0.0
 * Modern, accessible, and responsive design
 */

/* CSS Variables for easy customization */
:root {
    --imcs-primary-color: #2563eb;
    --imcs-secondary-color: #0ea5e9;
    --imcs-accent-color: #f59e0b;
    --imcs-success-color: #10b981;
    --imcs-warning-color: #f59e0b;
    --imcs-error-color: #ef4444;
    
    --imcs-text-primary: #111827;
    --imcs-text-secondary: #6b7280;
    --imcs-text-muted: #9ca3af;
    
    --imcs-bg-primary: #ffffff;
    --imcs-bg-secondary: #f9fafb;
    --imcs-bg-muted: #f3f4f6;
    --imcs-bg-overlay: rgba(0, 0, 0, 0.5);
    
    --imcs-border-color: #e5e7eb;
    --imcs-border-radius: 0.5rem;
    --imcs-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --imcs-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --imcs-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    --imcs-font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --imcs-font-size-sm: 0.875rem;
    --imcs-font-size-base: 1rem;
    --imcs-font-size-lg: 1.125rem;
    --imcs-font-size-xl: 1.25rem;
    --imcs-font-size-2xl: 1.5rem;
    --imcs-font-size-3xl: 1.875rem;
    
    --imcs-spacing-1: 0.25rem;
    --imcs-spacing-2: 0.5rem;
    --imcs-spacing-3: 0.75rem;
    --imcs-spacing-4: 1rem;
    --imcs-spacing-5: 1.25rem;
    --imcs-spacing-6: 1.5rem;
    --imcs-spacing-8: 2rem;
    --imcs-spacing-10: 2.5rem;
    --imcs-spacing-12: 3rem;
    
    --imcs-transition: all 0.3s ease;
    --imcs-animation-duration: 0.3s;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --imcs-text-primary: #f9fafb;
        --imcs-text-secondary: #d1d5db;
        --imcs-text-muted: #9ca3af;
        
        --imcs-bg-primary: #111827;
        --imcs-bg-secondary: #1f2937;
        --imcs-bg-muted: #374151;
        --imcs-bg-overlay: rgba(0, 0, 0, 0.7);
        
        --imcs-border-color: #374151;
    }
}

/* Base case study styles */
.imcs-case-study {
    font-family: var(--imcs-font-family);
    line-height: 1.6;
    color: var(--imcs-text-primary);
}

/* Case archive styles */
.imcs-case-archive {
    margin: var(--imcs-spacing-8) 0;
}

.imcs-case-list {
    display: grid;
    gap: var(--imcs-spacing-6);
    margin: var(--imcs-spacing-6) 0;
}

.imcs-case-list[data-columns="1"] {
    grid-template-columns: 1fr;
}

.imcs-case-list[data-columns="2"] {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.imcs-case-list[data-columns="3"] {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.imcs-case-list[data-columns="4"] {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Case card styles */
.imcs-case-card {
    background: var(--imcs-bg-primary);
    border: 1px solid var(--imcs-border-color);
    border-radius: var(--imcs-border-radius);
    box-shadow: var(--imcs-shadow-sm);
    overflow: hidden;
    transition: var(--imcs-transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.imcs-case-card:hover {
    box-shadow: var(--imcs-shadow-md);
    transform: translateY(-2px);
}

.imcs-case-thumbnail {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.imcs-case-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--imcs-transition);
}

.imcs-case-card:hover .imcs-case-thumbnail img {
    transform: scale(1.05);
}

.imcs-case-content {
    padding: var(--imcs-spacing-5);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.imcs-case-title {
    margin: 0 0 var(--imcs-spacing-3) 0;
    font-size: var(--imcs-font-size-lg);
    font-weight: 600;
    line-height: 1.4;
}

.imcs-case-title a {
    color: var(--imcs-text-primary);
    text-decoration: none;
    transition: var(--imcs-transition);
}

.imcs-case-title a:hover {
    color: var(--imcs-primary-color);
}

.imcs-case-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--imcs-spacing-2);
    margin-bottom: var(--imcs-spacing-3);
    font-size: var(--imcs-font-size-sm);
    color: var(--imcs-text-secondary);
}

.imcs-diagnosis {
    padding: var(--imcs-spacing-1) var(--imcs-spacing-2);
    background: var(--imcs-bg-muted);
    border-radius: calc(var(--imcs-border-radius) / 2);
    white-space: nowrap;
}

.imcs-case-excerpt {
    flex: 1;
    margin-bottom: var(--imcs-spacing-4);
    color: var(--imcs-text-secondary);
    font-size: var(--imcs-font-size-sm);
}

.imcs-case-link {
    margin-top: auto;
}

.imcs-read-more {
    display: inline-flex;
    align-items: center;
    padding: var(--imcs-spacing-2) var(--imcs-spacing-4);
    background: var(--imcs-primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--imcs-border-radius);
    font-size: var(--imcs-font-size-sm);
    font-weight: 500;
    transition: var(--imcs-transition);
}

.imcs-read-more:hover {
    background: color-mix(in srgb, var(--imcs-primary-color) 80%, black);
    transform: translateY(-1px);
}

.imcs-read-more::after {
    content: '→';
    margin-left: var(--imcs-spacing-2);
    transition: var(--imcs-transition);
}

.imcs-read-more:hover::after {
    transform: translateX(2px);
}


/* Image gallery styles */
.imcs-image-gallery {
    margin: var(--imcs-spacing-8) 0;
}

.imcs-image-gallery h3 {
    margin: 0 0 var(--imcs-spacing-6) 0;
    font-size: var(--imcs-font-size-2xl);
    text-align: center;
    color: var(--imcs-primary-color);
}


.imcs-image-grid,
.imcs-gallery-grid {
    display: grid;
    gap: var(--imcs-spacing-4);
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.imcs-image-item {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    border-radius: var(--imcs-border-radius);
    box-shadow: var(--imcs-shadow-sm);
    transition: var(--imcs-transition);
}

.imcs-image-item:hover {
    box-shadow: var(--imcs-shadow-md);
    transform: translateY(-2px);
}

.imcs-image-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--imcs-transition);
}

.imcs-image-item:hover img {
    transform: scale(1.05);
}

/* Lightbox styles */
.imcs-lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--imcs-bg-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: var(--imcs-transition);
}

.imcs-lightbox-overlay.active {
    opacity: 1;
    visibility: visible;
}

.imcs-lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    background: var(--imcs-bg-primary);
    border-radius: var(--imcs-border-radius);
    overflow: hidden;
    box-shadow: var(--imcs-shadow-lg);
    transform: scale(0.9);
    transition: var(--imcs-transition);
}

.imcs-lightbox-overlay.active .imcs-lightbox-content {
    transform: scale(1);
}

.imcs-lightbox-image {
    width: 100%;
    height: auto;
    display: block;
}

.imcs-lightbox-caption {
    padding: var(--imcs-spacing-4);
    text-align: center;
    background: var(--imcs-bg-secondary);
    color: var(--imcs-text-primary);
    font-size: var(--imcs-font-size-sm);
}

.imcs-lightbox-close,
.imcs-lightbox-prev,
.imcs-lightbox-next {
    position: absolute;
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 18px;
    transition: var(--imcs-transition);
    z-index: 10001;
}

.imcs-lightbox-close:hover,
.imcs-lightbox-prev:hover,
.imcs-lightbox-next:hover {
    background: rgba(0, 0, 0, 0.9);
    transform: scale(1.1);
}

.imcs-lightbox-close {
    top: var(--imcs-spacing-4);
    right: var(--imcs-spacing-4);
}

.imcs-lightbox-prev {
    top: 50%;
    left: var(--imcs-spacing-4);
    transform: translateY(-50%);
}

.imcs-lightbox-next {
    top: 50%;
    right: var(--imcs-spacing-4);
    transform: translateY(-50%);
}



/* Archive filters */
.imcs-archive-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--imcs-spacing-4);
    margin-bottom: var(--imcs-spacing-6);
    padding: var(--imcs-spacing-4);
    background: var(--imcs-bg-secondary);
    border-radius: var(--imcs-border-radius);
}


.imcs-filter-select {
    padding: var(--imcs-spacing-2) var(--imcs-spacing-3);
    border: 1px solid var(--imcs-border-color);
    border-radius: var(--imcs-border-radius);
    background: var(--imcs-bg-primary);
    color: var(--imcs-text-primary);
    font-size: var(--imcs-font-size-sm);
}


/* Loading states */
.imcs-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--imcs-spacing-8);
    color: var(--imcs-text-secondary);
}

.imcs-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--imcs-border-color);
    border-top: 2px solid var(--imcs-primary-color);
    border-radius: 50%;
    animation: imcs-spin 1s linear infinite;
    margin-right: var(--imcs-spacing-2);
}

@keyframes imcs-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Error states */
.imcs-error {
    padding: var(--imcs-spacing-4);
    background: color-mix(in srgb, var(--imcs-error-color) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--imcs-error-color) 30%, transparent);
    border-radius: var(--imcs-border-radius);
    color: var(--imcs-error-color);
    text-align: center;
    margin: var(--imcs-spacing-4) 0;
}

/* Responsive design */
@media (max-width: 768px) {
    .imcs-case-list[data-columns="2"],
    .imcs-case-list[data-columns="3"],
    .imcs-case-list[data-columns="4"] {
        grid-template-columns: 1fr;
    }
    
    .imcs-image-grid,
    .imcs-gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    
    
    .imcs-lightbox-content {
        max-width: 95vw;
        max-height: 95vh;
    }
    
    .imcs-lightbox-prev,
    .imcs-lightbox-next {
        width: 35px;
        height: 35px;
    }
    
    .imcs-archive-filters {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .imcs-image-grid,
    .imcs-gallery-grid {
        grid-template-columns: 1fr;
    }
}

/* Print styles */
@media print {
    .imcs-lightbox-overlay,
    .imcs-archive-filters,
    .imcs-read-more {
        display: none !important;
    }
    
    .imcs-case-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .imcs-image-grid,
    .imcs-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}


/* Focus styles for accessibility */
.imcs-case-card:focus-within,
.imcs-read-more:focus,
.imcs-lightbox:focus,
.imcs-filter-select:focus {
    outline: 2px solid var(--imcs-primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --imcs-border-color: #000;
        --imcs-shadow-sm: 0 0 0 1px #000;
        --imcs-shadow-md: 0 0 0 2px #000;
        --imcs-shadow-lg: 0 0 0 3px #000;
    }
}

/* ============================
   Case Images Styling
   症例画像スタイリング
   ============================ */

.adjacent-paragraph {
    margin: 15px 0;
}

/* Image layout styles */
.image-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

.image-row--one .image-item {
    flex: 1;
    max-width: 33.333%;
}

.image-row--two .image-item {
    flex: 1;
    max-width: 33.333%;
}

.image-row--three .image-item {
    flex: 1;
    max-width: calc(33.333% - 8px);
}

.image-row--four .image-item {
    flex: 1;
    max-width: calc(25% - 8px);
}

.image-item {
    position: relative;
    cursor: pointer;
    overflow: hidden;
    border-radius: 4px;
    transition: transform 0.2s ease;
    background: #f8f9fa;
}

.image-item:hover {
    transform: scale(1.02);
}

.image-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: opacity 0.2s ease;
}

.image-item:hover img {
    opacity: 0.9;
}

.image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 8px 12px;
    font-size: 0.875rem;
    line-height: 1.4;
    transform: translateY(100%);
    transition: transform 0.2s ease;
}

.image-item:hover .image-caption {
    transform: translateY(0);
}

.treatment-stage h3 {
    margin-bottom: 16px;
}

/* Triangle separator */
.triangle {
    width: 0;
    height: 0;
    border-left: 20px solid transparent;
    border-right: 20px solid transparent;
    border-top: 30px solid #ccc;
    margin: 20px auto;
}

/* Yellow box for before/after summary */
.yellowbox {
    background-color: #ffffe0;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.yellowbox h3 {
    margin-top: 0;
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    opacity: 0;
    transition: opacity 0.3s ease;
    align-items: center;
    justify-content: center;
}

.modal.show {
    opacity: 1;
}

.modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    text-align: center;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-content img {
    max-width: 100%;
    max-height: 80vh;
    height: auto;
    border-radius: 4px;
    display: block;
    margin: 0 auto;
}

.close {
    position: absolute;
    top: -40px;
    right: 0;
    color: white;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    line-height: 1;
}

.close:hover {
    opacity: 0.7;
}

.modal-caption {
    color: white;
    padding: 12px 16px;
    margin-top: 10px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 4px;
    font-size: 1rem;
    line-height: 1.4;
}

/* ============================
   Patient Information Styling
   患者情報スタイリング
   ============================ */

.patient-information {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 24px;
    margin: 24px 0;
}

.patient-info-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 16px 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: #2c3e50;
}

.patient-info-title .icon {
    font-size: 1.1rem;
}

.patient-info-container {
    position: relative;
}

/* ============================
   Treatment Information Styling
   治療情報スタイリング
   ============================ */

.treatment-information {
    background: #f0f8ff;
    border: 1px solid #b3d9ff;
    border-radius: 8px;
    padding: 24px;
    margin: 24px 0;
}

.treatment-info-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 16px 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e3a8a;
}

.treatment-info-title .icon {
    font-size: 1.1rem;
}

.treatment-info-container {
    position: relative;
}

.appliances-list {
    margin: 0;
    padding-left: 0;
}

.appliances-list li {
    margin: 0;
}


.treatment-disclaimer {
    margin-top: 16px;
    padding-top: 16px;
}

.disclaimer-text {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin: 0;
}

.disclaimer-icon {
    font-size: 1rem;
}

/* ============================
   Shared Table Styling
   共通テーブルスタイリング
   ============================ */

.info-table {
    width: 100%;
    border-collapse: collapse;
}

.info-label {
    min-width: 10.1em;
    background-color: rgb(121 209 221 / 0.3);
    padding: 12px 16px;
    font-weight: 600;
    width: 120px;
    vertical-align: top;
    border: 1px solid #ccc;
}

.info-value {
    padding: 12px 16px;
    color: #495057;
    line-height: 2;
    border: 1px solid #ccc;
}

.chief-complaint p, .diagnosis p {
    margin: 0;
}

/* Treatment info specific table styling */
.treatment-info-table .info-row {
    border-bottom: 1px solid #e3f2fd;
}

.treatment-info-table .info-label {
    border-right: 1px solid #e3f2fd;
}

.treatment-info-table .info-value {
    color: #374151;
}

/* ============================
   Responsive Design
   レスポンシブデザイン
   ============================ */

@media (max-width: 768px) {
   
    .adjacent-paragraph {
        margin: 10px 0 15px 0;
        padding: 10px 12px;
        font-size: 16px;
    }
    
    .modal-content {
        max-width: 95vw;
        max-height: 95vh;
    }
    
    .modal-caption {
        font-size: 0.9rem;
        padding: 8px 12px;
    }

    .patient-information,
    .treatment-information {
        padding: 16px;
        margin: 16px 0;
    }

    .info-label {
        min-width: 8em;
        width: 100px;
    }

    .image-row {
        gap: 4px;
        margin-bottom: 4px;
    }

    .image-row--three .image-item {
        flex: 1;
        max-width: calc(33.333% - 2px);
    }

    .image-row--four .image-item {
        flex: 1;
        max-width: calc(25% - 2px);
    }

}

/* ============================
   Print Styles
   印刷スタイル
   ============================ */

@media print {
    .image-item {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .modal {
        display: none !important;
    }
    
    .image-caption {
        position: static;
        transform: none;
        background: #f5f5f5;
        color: #333;
        border-top: 1px solid #ddd;
    }

    .patient-information {
        background: white;
        border: 1px solid #000;
        break-inside: avoid;
    }

    .treatment-information {
        background: white;
        border: 1px solid #000;
        break-inside: avoid;
    }
}

.risk-list, .risk-list ul {
    list-style-type: disc;
    padding-left: 20px;
    margin: 0;
}

/* ============================
   Related Cases Styling
   関連症例スタイリング
   ============================ */

.related-cases {
    background: #f8fffe;
    border: 1px solid #e6f7f5;
    border-radius: 12px;
    padding: 32px 24px;
    margin: 40px 0 32px;
    box-shadow: 0 2px 8px rgba(0, 150, 136, 0.1);
}

.related-cases h3 {
    color: #00695c;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 24px 0;
    text-align: center;
    position: relative;
    padding-bottom: 12px;
}

.related-cases h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #00bcd4, #4dd0e1);
    border-radius: 2px;
}

.related-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.related-case-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.related-case-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 150, 136, 0.15);
}

.related-case-item a {
    display: block;
    text-decoration: none;
    color: inherit;
}

.related-case-image {
    position: relative;
    overflow: hidden;
    height: 200px;
    background: #f5f5f5;
}

.related-case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.related-case-item:hover .related-case-image img {
    transform: scale(1.05);
}

.related-case-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
    padding: 16px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-case-meta {
    display: none;
}

/* ============================
   Case Study Navigation Styling
   症例ナビゲーションスタイリング
   ============================ */

.case-study-navigation {
    background: #f7f9fc;
    border: 1px solid #e3ebf0;
    border-radius: 12px;
    padding: 24px;
    margin: 32px 0;
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 20px;
}


.nav-previous a,
.nav-next a,
.nav-archive a {
    display: inline-block;
    text-decoration: none;
    padding: 12px 20px;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    min-width: 140px;
}

.nav-previous a:hover,
.nav-next a:hover {
    background: #e3f2fd;
    border-color: #2196f3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
}

.nav-archive a {
    background: #4caf50;
    color: white;
    font-weight: 600;
}

.nav-archive a:hover {
    background: #45a049;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

.nav-direction {
    display: block;
    font-size: 0.85rem;
    color: #6c757d;
    font-weight: 500;
    margin-bottom: 4px;
}

.nav-title {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: #2c3e50;
    line-height: 1.3;
}

.nav-archive .nav-title {
    color: white;
    font-size: 1rem;
}

/* Navigation arrows */
.nav-previous a::before {
    content: '←';
    margin-right: 8px;
    font-weight: bold;
    color: #4caf50;
}

.nav-next a::after {
    content: '→';
    margin-left: 8px;
    font-weight: bold;
    color: #4caf50;
}

/* Category and Tag Navigation */
.nav-categories,
.nav-tags {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 16px 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.nav-label {
    font-weight: 600;
    color: #6c757d;
    font-size: 0.9rem;
    min-width: 70px;
}

.category-link,
.tag-link {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.category-link {
    background: #e3f2fd;
    color: #1976d2;
    border: 1px solid #90caf9;
}

.category-link:hover {
    background: #1976d2;
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.3);
}

.tag-link {
    background: #f3e5f5;
    color: #7b1fa2;
    border: 1px solid #ce93d8;
}

.tag-link:hover {
    background: #7b1fa2;
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(123, 31, 162, 0.3);
}

/* Archive link in new layout */
.nav-archive {
    text-align: center;
}

.nav-archive a {
    display: inline-block;
    width: auto;
    max-width: 300px;
}

.case-study-footer {
    max-width: 1200px;
    margin: 0 auto ;
}

/* ============================
   Responsive Design for Related Cases & Navigation
   関連症例・ナビゲーションのレスポンシブデザイン
   ============================ */

@media (max-width: 768px) {
    .related-cases {
        padding: 24px 16px;
        margin: 32px 0 24px 0;
    }
    
    .related-cases h3 {
        font-size: 1.3rem;
        margin-bottom: 20px;
    }
    
    .related-cases-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .related-case-image {
        height: 160px;
    }
    
    .case-study-navigation {
        padding: 20px 16px;
        margin: 24px 0;
    }
    
    .nav-links {
        gap: 16px;
    }
    
    .nav-categories,
    .nav-tags {
        padding: 12px 16px;
        gap: 8px;
    }
    
    .nav-label {
        font-size: 0.85rem;
        min-width: 60px;
    }
    
    .category-link,
    .tag-link {
        padding: 4px 10px;
        font-size: 0.8rem;
    }
    
    .nav-previous a,
    .nav-next a,
    .nav-archive a {
        min-width: 200px;
        padding: 14px 20px;
    }
    
    .nav-direction {
        font-size: 0.8rem;
    }
    
    .nav-title {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .related-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .related-case-item h4 {
        font-size: 1rem;
        padding: 12px 12px 6px 12px;
    }
    
    .related-case-meta {
        font-size: 0.85rem;
        padding: 0 12px 12px 12px;
    }
    
    .nav-previous a,
    .nav-next a,
    .nav-archive a {
        min-width: 180px;
        padding: 12px 16px;
    }
}

/* ============================
   Shared Archive Components
   共通アーカイブコンポーネント
   ============================ */

/* Archive Container */
.case-archive-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* Archive Header */
.archive-header {
    text-align: center;
    margin-bottom: 32px;
    padding: 32px 24px;
    background: linear-gradient(135deg, #f8fffe 0%, #e8f5f3 100%);
    border-radius: 12px;
    border: 1px solid #e6f7f5;
}

.archive-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: #00695c;
    margin: 0 0 16px 0;
    line-height: 1.2;
}

.archive-description {
    font-size: 1.1rem;
    color: #546e7a;
    margin: 0 0 24px 0;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.archive-meta {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.case-count {
    display: flex;
    align-items: center;
    gap: 8px;
    background: white;
    padding: 12px 20px;
    border-radius: 25px;
    box-shadow: 0 2px 8px rgba(0, 150, 136, 0.1);
}

.count-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: #00bcd4;
}

.count-label {
    font-size: 0.9rem;
    color: #546e7a;
    font-weight: 500;
}

.taxonomy-info {
    display: flex;
    align-items: center;
    gap: 8px;
    background: white;
    padding: 12px 20px;
    border-radius: 25px;
    box-shadow: 0 2px 8px rgba(0, 150, 136, 0.1);
}

.taxonomy-label {
    font-size: 0.9rem;
    color: #6c757d;
    font-weight: 500;
}

.taxonomy-name {
    font-size: 1rem;
    font-weight: 600;
    color: #2c3e50;
}

/* Case Filters */
.archive-filters-section {
    margin-bottom: 32px;
}

.case-filters {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.case-filters[data-context="archive"] {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 24px;
    align-items: start;
}

.case-filters[data-context="category"],
.case-filters[data-context="tag"] {
    display: flex;
    gap: 24px;
    align-items: center;
}

.search-filter {
    flex: 1;
}

.search-input-group {
    display: flex;
    gap: 0;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    overflow: hidden;
    transition: border-color 0.3s ease;
}

.search-input-group:focus-within {
    border-color: #4caf50;
}

.search-input {
    flex: 1;
    padding: 12px 16px;
    border: none;
    font-size: 1rem;
    background: white;
    outline: none;
}

.search-submit {
    background: #4caf50;
    color: white;
    border: none;
    padding: 12px 20px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-submit:hover {
    background: #45a049;
}

.search-icon {
    font-size: 1rem;
}

.search-text {
    font-size: 0.9rem;
}

.sort-filter,
.taxonomy-filters {
    display: flex;
    gap: 16px;
    align-items: center;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sort-label,
.filter-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: #6c757d;
    white-space: nowrap;
}

.sort-dropdown,
.taxonomy-dropdown {
    padding: 8px 12px;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    background: white;
    font-size: 0.9rem;
    color: #495057;
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.sort-dropdown:focus,
.taxonomy-dropdown:focus {
    outline: none;
    border-color: #4caf50;
}

/* Cases Container */
.cases-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

/* Case Card Styles */
.case-study-card {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.case-study-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 150, 136, 0.15);
}

.case-card-header {
    position: relative;
}

.case-thumbnail {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: #f5f5f5;
}

.case-featured-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.case-study-card:hover .case-featured-image {
    transform: scale(1.05);
}

.case-no-image {
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
}


.case-card-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-title {
    margin: 0 0 16px 0;
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
}

.case-title a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s ease;
}

.case-title a:hover {
    color: #4caf50;
}

.case-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: #6c757d;
}

.meta-icon {
    font-size: 1rem;
}

.case-excerpt {
    font-size: 0.9rem;
    color: #6c757d;
    line-height: 1.5;
    margin-bottom: 12px;
}

.case-categories,
.case-tags {
    margin-bottom: 12px;
    font-size: 0.85rem;
}

.taxonomy-label {
    font-size: 0.8rem;
    color: #6c757d;
    font-weight: 600;
    margin-right: 8px;
}

.archive-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.archive-navigation {
    margin-left: auto;
}

.all-cases-link {
    display: inline-block;
    padding: 8px 16px;
    background: #007cba;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.all-cases-link:hover {
    background: #005a87;
    color: white;
    text-decoration: none;
    transform: translateY(-1px);
}

.case-taxonomy-single {
    text-align: center;
    margin-bottom: 24px;
}

.category-tag,
.case-tag {
    display: inline-block;
    padding: 4px 10px;
    margin: 4px 4px 4px 0;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.category-tag {
    background: #e3f2fd;
    color: #1976d2;
    border: 1px solid #90caf9;
}

.category-tag:hover {
    background: #1976d2;
    color: white;
}

.case-tag {
    background: #f3e5f5;
    color: #7b1fa2;
    border: 1px solid #ce93d8;
}

.case-tag:hover {
    background: #7b1fa2;
    color: white;
}

.case-tag.current-tag {
    background: #7b1fa2;
    color: white;
    font-weight: 600;
}

.case-card-footer {
    padding: 16px 20px;
    background: #f8f9fa;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.view-case-link {
    color: #4caf50;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.3s ease;
}

.view-case-link:hover {
    color: #45a049;
}

.view-case-link .arrow {
    transition: transform 0.3s ease;
}

.view-case-link:hover .arrow {
    transform: translateX(4px);
}


/* No Cases Found */
.no-cases-found {
    text-align: center;
    padding: 60px 24px;
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.no-cases-content {
    max-width: 500px;
    margin: 0 auto;
}

.no-cases-icon {
    font-size: 4rem;
    margin-bottom: 24px;
    opacity: 0.6;
}

.no-cases-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 0 0 16px 0;
}

.no-cases-message {
    font-size: 1rem;
    color: #6c757d;
    margin: 0 0 32px 0;
    line-height: 1.6;
}

.search-tips {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 32px;
    text-align: left;
}

.search-tips h3 {
    font-size: 1rem;
    margin: 0 0 12px 0;
    color: #495057;
}

.search-tips ul {
    margin: 0;
    padding-left: 20px;
}

.search-tips li {
    font-size: 0.9rem;
    color: #6c757d;
    margin-bottom: 4px;
}

.no-cases-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: #4caf50;
    color: white;
}

.btn-primary:hover {
    background: #45a049;
    transform: translateY(-2px);
}

.btn-secondary {
    background: white;
    color: #4caf50;
    border-color: #4caf50;
}

.btn-secondary:hover {
    background: #4caf50;
    color: white;
}

.recent-cases {
    text-align: left;
}

.recent-cases h3 {
    font-size: 1.1rem;
    margin: 0 0 16px 0;
    color: #495057;
}

.recent-cases-list {
    display: grid;
    gap: 12px;
}

.recent-case-item {
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.recent-case-item:hover {
    background: #e9ecef;
}

.recent-case-item a {
    text-decoration: none;
    color: inherit;
}

.recent-case-item h4 {
    font-size: 0.9rem;
    margin: 0 0 4px 0;
    color: #2c3e50;
}

.recent-case-item .case-meta {
    font-size: 0.8rem;
    color: #6c757d;
}

/* Archive Pagination */
.archive-pagination-section {
    margin: 40px 0;
}

.case-pagination {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.pagination-stats {
    text-align: center;
    margin-bottom: 20px;
}

.stats-text {
    font-size: 0.9rem;
    color: #495057;
    font-weight: 500;
}

.page-info {
    font-size: 0.85rem;
    color: #6c757d;
    margin-left: 8px;
}

.pagination-links {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.pagination-list {
    display: flex;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.pagination-item a,
.pagination-item span {
    display: block;
    padding: 10px 16px;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    text-decoration: none;
    color: #495057;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 44px;
    text-align: center;
}

.pagination-item a:hover {
    background: #4caf50;
    color: white;
    border-color: #4caf50;
}

.pagination-item.current span {
    background: #4caf50;
    color: white;
    border-color: #4caf50;
}

.pagination-item.prev a,
.pagination-item.next a {
    font-weight: 600;
}

.pagination-jump {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid #e9ecef;
}

.page-jump-form {
    display: flex;
    align-items: center;
    gap: 8px;
}

.page-jump-form label {
    font-size: 0.9rem;
    color: #6c757d;
    font-weight: 500;
}

.page-jump-input {
    width: 60px;
    padding: 6px 8px;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    font-size: 0.9rem;
    text-align: center;
}

.page-jump-btn {
    padding: 6px 12px;
    background: #6c757d;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.page-jump-btn:hover {
    background: #5a6268;
}

/* Archive Sidebar */
.archive-sidebar {
    margin-top: 48px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.popular-categories,
.popular-tags {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.popular-categories h3,
.popular-tags h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 0 0 20px 0;
    text-align: center;
}

.category-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.category-item {
    margin-bottom: 8px;
}

.category-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: #f8f9fa;
    border-radius: 8px;
    text-decoration: none;
    color: #495057;
    transition: all 0.3s ease;
}

.category-link:hover {
    background: #e3f2fd;
    color: #1976d2;
}

.category-name {
    font-weight: 500;
}

.category-count {
    font-size: 0.85rem;
    color: #6c757d;
    background: white;
    padding: 2px 8px;
    border-radius: 10px;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-cloud .tag-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: #f3e5f5;
    color: #7b1fa2;
    border: 1px solid #ce93d8;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.tag-cloud .tag-link:hover {
    background: #7b1fa2;
    color: white;
}

.tag-cloud .tag-count {
    font-size: 0.75rem;
    opacity: 0.8;
}

/* Responsive Design for Archive Components */
@media (max-width: 768px) {
    .case-archive-container {
        padding: 16px;
    }
    
    .archive-header {
        padding: 24px 16px;
        margin-bottom: 24px;
    }
    
    .archive-title {
        font-size: 1.75rem;
    }
    
    .archive-meta {
        flex-direction: column;
        gap: 12px;
    }
    
    .case-filters[data-context="archive"] {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .case-filters[data-context="category"],
    .case-filters[data-context="tag"] {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }
    
    .sort-filter,
    .taxonomy-filters {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .cases-container {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .case-meta {
        flex-direction: column;
        gap: 8px;
    }
    
    .case-card-footer {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .no-cases-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .pagination-list {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .pagination-jump {
        flex-direction: column;
        gap: 8px;
    }
    
    .archive-sidebar {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-top: 32px;
    }
}

@media (max-width: 480px) {
    .search-submit .search-text {
        display: none;
    }
    
    .pagination-item a,
    .pagination-item span {
        padding: 8px 12px;
        min-width: 36px;
        font-size: 0.85rem;
    }
    
    .tag-cloud {
        gap: 4px;
    }
    
    .tag-cloud .tag-link {
        font-size: 0.8rem;
        padding: 4px 8px;
    }
}