/* ================================================
   昶永水電 - 部落格樣式
   Blog Styles
   ================================================ */

/* -------------------- Category Grid -------------------- */
.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.category-card {
    background: var(--graphite);
    border: 1px solid var(--steel);
    border-radius: 12px;
    padding: var(--space-lg);
    text-align: center;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.category-card:hover {
    border-color: var(--safety-orange);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.category-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--safety-orange), var(--warning-yellow));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-xs);
}

.category-icon svg {
    width: 32px;
    height: 32px;
    color: var(--coal);
}

.category-card h3 {
    font-size: 1.1rem;
    font-family: var(--font-body);
    font-weight: 700;
    text-transform: none;
    margin: 0;
}

.category-card .article-count {
    font-size: 0.85rem;
    color: var(--concrete);
}

/* -------------------- Article Grid -------------------- */
.article-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.article-card {
    background: var(--coal);
    border: 1px solid var(--steel);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    border-color: var(--safety-orange);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.article-card-image {
    width: 100%;
    height: 200px;
    background: var(--graphite);
    overflow: hidden;
    position: relative;
}

.article-card-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--graphite) 0%, var(--steel) 100%);
    z-index: 0;
}

.article-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: relative;
    z-index: 1;
    transition: var(--transition-normal);
}

.article-card:hover .article-card-image img {
    transform: scale(1.05);
}

.article-card-content {
    padding: var(--space-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-category {
    font-size: 0.8rem;
    color: var(--safety-orange);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-xs);
}

.article-card h3 {
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: none;
    line-height: 1.4;
    margin-bottom: var(--space-xs);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card p {
    font-size: 0.9rem;
    color: var(--concrete);
    line-height: 1.5;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--concrete);
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--steel);
}

/* -------------------- Category Hero -------------------- */
.category-hero {
    text-align: center;
}

.category-hero-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--safety-orange), var(--warning-yellow));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
}

.category-hero-icon svg {
    width: 40px;
    height: 40px;
    color: var(--coal);
}

.category-hero h1 {
    font-family: var(--font-body);
    font-weight: 900;
    text-transform: none;
}

/* -------------------- Category Tags -------------------- */
.category-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
}

.category-tag {
    display: inline-block;
    padding: 10px 20px;
    background: var(--coal);
    border: 1px solid var(--steel);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.category-tag:hover {
    border-color: var(--safety-orange);
    color: var(--safety-orange);
}

/* -------------------- Article Header -------------------- */
.article-header {
    padding: 140px var(--space-lg) var(--space-xl);
    background: linear-gradient(135deg, var(--coal) 0%, var(--graphite) 100%);
    position: relative;
    overflow: hidden;
}

.article-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 60px,
            rgba(255,107,53,0.03) 60px,
            rgba(255,107,53,0.03) 61px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 60px,
            rgba(255,107,53,0.03) 60px,
            rgba(255,107,53,0.03) 61px
        );
}

.article-header-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.article-header .breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.9rem;
    color: var(--concrete);
    margin-bottom: var(--space-md);
}

.article-header .breadcrumb a {
    color: var(--concrete);
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-header .breadcrumb a:hover {
    color: var(--safety-orange);
}

.article-header .breadcrumb svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.article-header h1 {
    font-family: var(--font-body);
    font-weight: 900;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    text-transform: none;
    line-height: 1.3;
    margin-bottom: var(--space-md);
}

.article-meta-header {
    display: flex;
    gap: var(--space-md);
    color: var(--concrete);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.9rem;
}

.meta-item svg {
    width: 18px;
    height: 18px;
    color: var(--safety-orange);
}

/* -------------------- Article Content -------------------- */
.article-content {
    padding: var(--space-xl) var(--space-lg);
}

.article-content .container-narrow {
    max-width: 800px;
    margin: 0 auto;
}

/* Typography */
.article-content h1 {
    font-family: var(--font-body);
    font-weight: 900;
    font-size: 2rem;
    text-transform: none;
    margin: var(--space-xl) 0 var(--space-md);
    color: var(--clean-white);
}

.article-content h2 {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.5rem;
    text-transform: none;
    margin: var(--space-lg) 0 var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--steel);
    color: var(--clean-white);
}

.article-content h3 {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.25rem;
    text-transform: none;
    margin: var(--space-md) 0 var(--space-sm);
    color: var(--safety-orange);
}

.article-content h4 {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.1rem;
    text-transform: none;
    margin: var(--space-md) 0 var(--space-sm);
    color: var(--clean-white);
}

.article-content p {
    margin-bottom: var(--space-md);
    line-height: 1.8;
    color: var(--clean-white);
}

.article-content strong {
    color: var(--safety-orange);
    font-weight: 700;
}

.article-content a {
    color: var(--safety-orange);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: var(--transition-fast);
}

.article-content a:hover {
    color: var(--warning-yellow);
}

/* Lists */
.article-content ul,
.article-content ol {
    margin: 0 0 var(--space-md);
    padding-left: var(--space-md);
}

.article-content li {
    margin-bottom: var(--space-xs);
    line-height: 1.7;
}

.article-content ul li::marker {
    color: var(--safety-orange);
}

.article-content ol li::marker {
    color: var(--safety-orange);
    font-weight: 700;
}

/* Blockquote */
.article-content blockquote {
    margin: var(--space-md) 0;
    padding: var(--space-md);
    background: var(--graphite);
    border-left: 4px solid var(--safety-orange);
    border-radius: 0 8px 8px 0;
}

.article-content blockquote p {
    margin: 0;
    color: var(--concrete);
    font-style: italic;
}

/* Code */
.article-content code {
    background: var(--graphite);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Menlo', 'Monaco', monospace;
    font-size: 0.9em;
    color: var(--warning-yellow);
}

.article-content pre {
    background: var(--graphite);
    padding: var(--space-md);
    border-radius: 8px;
    overflow-x: auto;
    margin: var(--space-md) 0;
}

.article-content pre code {
    background: none;
    padding: 0;
    font-size: 0.85rem;
    line-height: 1.6;
}

/* Tables */
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-md) 0;
}

.article-content th,
.article-content td {
    padding: var(--space-sm);
    text-align: left;
    border-bottom: 1px solid var(--steel);
}

.article-content th {
    background: var(--graphite);
    font-weight: 700;
    color: var(--safety-orange);
}

.article-content tr:hover {
    background: rgba(255, 107, 53, 0.05);
}

/* Horizontal Rule */
.article-content hr {
    border: none;
    height: 1px;
    background: var(--steel);
    margin: var(--space-lg) 0;
}

/* Images */
.article-image {
    margin: var(--space-lg) 0;
}

.article-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.article-image figcaption {
    text-align: center;
    font-size: 0.85rem;
    color: var(--concrete);
    margin-top: var(--space-sm);
}

/* Tags */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-top: var(--space-xl);
    padding-top: var(--space-md);
    border-top: 1px solid var(--steel);
}

.tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--graphite);
    border: 1px solid var(--steel);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--concrete);
    transition: var(--transition-fast);
}

.tag:hover {
    border-color: var(--safety-orange);
    color: var(--safety-orange);
}

/* -------------------- Explore Layout (A2 + C) -------------------- */
.explore-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-xl);
    align-items: start;
}

.explore-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

/* Tag Groups */
.tag-group {
    background: var(--graphite);
    border: 1px solid var(--steel);
    border-radius: 12px;
    padding: var(--space-md);
}

.tag-group-title {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    text-transform: none;
    margin-bottom: var(--space-sm);
    color: var(--clean-white);
}

.tag-group-icon {
    font-size: 1.2rem;
}

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

/* Topic Pills */
.topic-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--coal);
    border: 1px solid var(--steel);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--clean-white);
    transition: var(--transition-fast);
}

.topic-pill span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--steel);
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--concrete);
}

.topic-pill:hover {
    border-color: var(--safety-orange);
    color: var(--safety-orange);
    transform: translateY(-2px);
}

.topic-pill:hover span {
    background: var(--safety-orange);
    color: var(--coal);
}

/* Explore Main (Right Side) */
.explore-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

/* Featured Section */
.featured-section {
    background: var(--graphite);
    border: 1px solid var(--steel);
    border-radius: 12px;
    padding: var(--space-md);
}

.featured-title {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    text-transform: none;
    margin-bottom: var(--space-md);
    color: var(--safety-orange);
}

.featured-title svg {
    width: 20px;
    height: 20px;
    color: var(--safety-orange);
}

.featured-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.featured-item {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: var(--coal);
    border: 1px solid transparent;
    border-radius: 10px;
    transition: var(--transition-fast);
}

.featured-item:hover {
    border-color: var(--safety-orange);
    transform: translateX(4px);
}

.featured-item-image {
    flex-shrink: 0;
    width: 80px;
    height: 60px;
    border-radius: 6px;
    overflow: hidden;
    background: var(--graphite);
}

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

.featured-item:hover .featured-item-image img {
    transform: scale(1.1);
}

.featured-item-content {
    flex: 1;
    min-width: 0;
}

.featured-item-category {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--safety-orange);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.featured-item h4 {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: none;
    line-height: 1.4;
    color: var(--clean-white);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Explore Stats */
.explore-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
}

.stat-item {
    background: linear-gradient(135deg, var(--graphite), var(--coal));
    border: 1px solid var(--steel);
    border-radius: 10px;
    padding: var(--space-md) var(--space-sm);
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--safety-orange);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--concrete);
    margin-top: 4px;
}

/* -------------------- Related Articles -------------------- */
.related-section {
    background: var(--graphite);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.related-card {
    background: var(--coal);
    border: 1px solid var(--steel);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-normal);
}

.related-card:hover {
    border-color: var(--safety-orange);
    transform: translateY(-2px);
}

.related-card-image {
    width: 100%;
    height: 120px;
    background: var(--graphite);
    overflow: hidden;
}

.related-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

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

.related-card-content {
    padding: var(--space-sm);
}

.related-card h4 {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: none;
    line-height: 1.4;
    margin-bottom: var(--space-xs);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-meta {
    font-size: 0.8rem;
    color: var(--concrete);
}

/* ================================================================================
   RESPONSIVE DESIGN - Blog Specific
   ================================================================================ */

/* -------------------- Tablet Landscape (< 1024px) -------------------- */
@media (max-width: 1024px) {
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .article-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Explore Layout */
    .explore-layout {
        grid-template-columns: 1fr 320px;
        gap: var(--space-lg);
    }

    .featured-item-image {
        width: 70px;
        height: 52px;
    }

    .featured-item h4 {
        font-size: 0.85rem;
    }
}

/* -------------------- Tablet Portrait (< 768px) -------------------- */
@media (max-width: 768px) {
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

    .category-card {
        padding: var(--space-md);
    }

    .category-icon {
        width: 52px;
        height: 52px;
        border-radius: 12px;
    }

    .category-icon svg {
        width: 26px;
        height: 26px;
    }

    .category-card h3 {
        font-size: 1rem;
    }

    .article-grid {
        grid-template-columns: 1fr;
    }

    .article-card-image {
        height: 180px;
    }

    .article-header {
        padding: 100px var(--space-md) var(--space-lg);
    }

    .article-header h1 {
        font-size: 1.5rem;
    }

    .article-meta-header {
        flex-direction: column;
        gap: var(--space-xs);
    }

    .article-content {
        padding: var(--space-lg) var(--space-md);
    }

    .article-content h1 {
        font-size: 1.5rem;
    }

    .article-content h2 {
        font-size: 1.3rem;
    }

    .article-content h3 {
        font-size: 1.1rem;
    }

    .related-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

    .related-card-image {
        height: 100px;
    }

    .related-card h4 {
        font-size: 0.85rem;
    }

    .category-tags {
        gap: var(--space-xs);
    }

    .category-tag {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    /* Explore Layout - Stack vertically */
    .explore-layout {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .explore-sidebar {
        order: 1;
    }

    .explore-main {
        order: 2;
    }

    .tag-group {
        padding: var(--space-sm);
    }

    .topic-pill {
        padding: 6px 12px;
        font-size: 0.85rem;
    }

    .topic-pill span {
        min-width: 18px;
        height: 18px;
        font-size: 0.7rem;
    }

    .featured-item {
        padding: var(--space-xs);
    }

    .featured-item-image {
        width: 70px;
        height: 52px;
    }

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

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.7rem;
    }
}

/* -------------------- Mobile (< 576px) -------------------- */
@media (max-width: 576px) {
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xs);
    }

    .category-card {
        padding: var(--space-sm);
    }

    .category-icon {
        width: 44px;
        height: 44px;
        border-radius: 10px;
    }

    .category-icon svg {
        width: 22px;
        height: 22px;
    }

    .category-card h3 {
        font-size: 0.9rem;
    }

    .category-card .article-count {
        font-size: 0.75rem;
    }

    .article-card-content {
        padding: var(--space-sm);
    }

    .article-card h3 {
        font-size: 1rem;
    }

    .article-header {
        padding: 90px var(--space-sm) var(--space-md);
    }

    .article-content {
        padding: var(--space-md) var(--space-sm);
    }

    .article-content p {
        font-size: 0.95rem;
        line-height: 1.7;
    }

    .article-content ul,
    .article-content ol {
        padding-left: var(--space-sm);
    }

    .article-content blockquote {
        padding: var(--space-sm);
    }

    .related-grid {
        grid-template-columns: 1fr 1fr;
    }

    .related-card-content {
        padding: var(--space-xs);
    }

    .related-card h4 {
        font-size: 0.8rem;
    }

    /* Explore Layout */
    .explore-sidebar {
        gap: var(--space-md);
    }

    .tag-group-title {
        font-size: 0.9rem;
    }

    .tag-group-items {
        gap: 6px;
    }

    .topic-pill {
        padding: 5px 10px;
        font-size: 0.8rem;
    }

    .topic-pill span {
        min-width: 16px;
        height: 16px;
        padding: 0 4px;
        font-size: 0.65rem;
    }

    .featured-section {
        padding: var(--space-sm);
    }

    .featured-title {
        font-size: 0.9rem;
        margin-bottom: var(--space-sm);
    }

    .featured-title svg {
        width: 18px;
        height: 18px;
    }

    .featured-item-image {
        width: 60px;
        height: 45px;
    }

    .featured-item-category {
        font-size: 0.65rem;
    }

    .featured-item h4 {
        font-size: 0.8rem;
    }

    .explore-stats {
        gap: var(--space-xs);
    }

    .stat-item {
        padding: var(--space-sm) var(--space-xs);
    }

    .stat-number {
        font-size: 1.25rem;
    }

    .stat-label {
        font-size: 0.65rem;
    }
}

/* -------------------- Extra Small Mobile (< 480px) -------------------- */
@media (max-width: 480px) {
    .category-hero-icon {
        width: 60px;
        height: 60px;
        border-radius: 14px;
    }

    .category-hero-icon svg {
        width: 30px;
        height: 30px;
    }

    .article-header h1 {
        font-size: 1.25rem;
    }

    .article-content h1 {
        font-size: 1.25rem;
    }

    .article-content h2 {
        font-size: 1.15rem;
    }

    .article-tags {
        gap: 6px;
    }

    .tag {
        padding: 4px 10px;
        font-size: 0.75rem;
    }

    /* Explore Layout */
    .tag-group {
        padding: var(--space-xs);
    }

    .tag-group-title {
        font-size: 0.85rem;
        margin-bottom: var(--space-xs);
    }

    .tag-group-icon {
        font-size: 1rem;
    }

    .featured-list {
        gap: var(--space-xs);
    }

    .featured-item {
        gap: var(--space-xs);
    }

    .featured-item-image {
        width: 50px;
        height: 38px;
        border-radius: 4px;
    }

    .featured-item h4 {
        font-size: 0.75rem;
        -webkit-line-clamp: 2;
    }
}