/* =========================================================
   Blog Pages – blog.css
   Covers: Blog Index (/blog) and Blog Article Detail (/blog/:slug)
   ========================================================= */

/* ---- Blog Hero Stats ---- */
.blog-hero-stats {
    display: flex;
    gap: 28px;
    margin-top: 28px;
    flex-wrap: wrap;
}

.blog-hero-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.blog-hero-stat strong {
    font-size: 1.6rem;
    font-family: 'Fraunces', serif;
    color: var(--accent);
    line-height: 1;
}

.blog-hero-stat span {
    font-size: 0.82rem;
    color: var(--muted);
    letter-spacing: 0.03em;
}

/* ---- Blog Hero Aside Preview Cards ---- */
.blog-hero-aside {
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-hero-stack {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    max-width: 360px;
}

.blog-hero-preview-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(16, 35, 61, 0.08);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 12px rgba(16, 35, 61, 0.07);
    backdrop-filter: blur(6px);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.blog-hero-preview-card:hover {
    transform: translateX(4px);
    box-shadow: 0 8px 20px rgba(16, 35, 61, 0.10);
}

.blog-hero-preview-card__thumb {
    width: 56px;
    height: 44px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--accent-soft), rgba(187, 122, 31, 0.06));
}

.blog-hero-preview-card__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-hero-preview-card__cat {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-strong);
    margin-bottom: 3px;
}

.blog-hero-preview-card__title {
    margin: 0;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---- Category Filter ---- */
.blog-filter-section {
    padding: 20px 0 0;
}

.blog-category-filter {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.blog-cat-btn {
    padding: 8px 18px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.72);
    color: var(--muted);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
    font-family: inherit;
}

.blog-cat-btn:hover {
    background: var(--accent-soft);
    color: var(--accent-strong);
    border-color: var(--accent);
}

.blog-cat-btn.is-active {
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #fff;
    border-color: transparent;
}

/* ---- Featured Article ---- */
.blog-featured-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.blog-featured-card {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 0;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(16, 35, 61, 0.08);
    box-shadow: var(--shadow);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.blog-featured-link:hover .blog-featured-card {
    transform: translateY(-3px);
    box-shadow: 0 32px 72px rgba(16, 35, 61, 0.16);
}

.blog-featured-card__image {
    position: relative;
    min-height: 320px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--accent-soft), rgba(187, 122, 31, 0.06));
}

.blog-featured-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.blog-featured-card__badge {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #fff;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-radius: 999px;
}

.blog-featured-card__body {
    padding: 44px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
}

.blog-featured-card__title {
    font-size: clamp(1.4rem, 2.2vw, 2rem);
    font-family: 'Fraunces', serif;
    line-height: 1.18;
    margin: 8px 0;
    color: var(--text);
}

.blog-featured-card__excerpt {
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.65;
    margin: 0;
}

.blog-read-btn {
    align-self: flex-start;
    margin-top: 8px;
}

/* ---- Article Grid ---- */
.blog-search-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.blog-search {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid var(--line);
    border-radius: 999px;
    min-width: 280px;
    max-width: 360px;
    flex: 1;
}

.blog-search__icon {
    color: var(--muted);
    flex-shrink: 0;
}

.blog-search__input {
    border: none;
    background: transparent;
    font-size: 0.95rem;
    color: var(--text);
    width: 100%;
    outline: none;
    font-family: inherit;
}

.blog-search__input::placeholder {
    color: var(--muted);
}

.blog-results-count {
    font-size: 0.88rem;
    color: var(--muted);
    font-weight: 600;
    white-space: nowrap;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

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

.blog-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
    transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 28px 60px rgba(16, 35, 61, 0.14);
}

.blog-card__thumb-link {
    display: block;
}

.blog-card__thumb {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--accent-soft), rgba(187, 122, 31, 0.06));
}

.blog-card__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s ease;
}

.blog-card:hover .blog-card__thumb img {
    transform: scale(1.04);
}

.blog-card__thumb-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(16, 35, 61, 0.25), transparent 50%);
    transition: opacity 0.2s ease;
}

.blog-card__body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.blog-card__title {
    margin: 0;
    font-size: 1.05rem;
    font-family: 'Fraunces', serif;
    line-height: 1.25;
}

.blog-card__title a {
    color: var(--text);
    text-decoration: none;
    transition: color 0.18s ease;
}

.blog-card__title a:hover {
    color: var(--accent-strong);
}

.blog-card__excerpt {
    margin: 0;
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.84rem;
    color: var(--muted);
    flex-wrap: wrap;
}

.blog-meta-divider {
    color: var(--line);
}

.blog-author-chip {
    display: flex;
    align-items: center;
    gap: 7px;
}

.blog-author-chip__avatar {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #fff;
    font-size: 0.75rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    text-transform: uppercase;
}

.blog-author-chip--sm .blog-author-chip__avatar {
    width: 22px;
    height: 22px;
    font-size: 0.68rem;
}

.blog-card__cta {
    margin-top: auto;
    font-size: 0.88rem;
    font-weight: 700;
}

.blog-no-results {
    padding: 40px;
    text-align: center;
    color: var(--muted);
    background: rgba(255, 255, 255, 0.72);
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
}

.blog-clear-btn {
    background: none;
    border: none;
    color: var(--accent-strong);
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    text-decoration: underline;
    padding: 0;
}

/* ============================================================
   Blog Article Detail
   ============================================================ */

/* ---- Breadcrumb ---- */
.blog-breadcrumb-bar {
    background: rgba(255, 255, 255, 0.72);
    border-bottom: 1px solid var(--line);
    padding: 12px 0;
}

.blog-breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    color: var(--muted);
    flex-wrap: wrap;
}

.blog-breadcrumb a {
    color: var(--muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.18s ease;
}

.blog-breadcrumb a:hover {
    color: var(--accent-strong);
}

.blog-breadcrumb__sep {
    color: var(--line);
    font-size: 1rem;
}

.blog-breadcrumb span[aria-current] {
    color: var(--text);
    font-weight: 600;
}

/* ---- Article Header ---- */
.article-header {
    padding: 56px 0 32px;
}

.article-header__shell {
    max-width: 860px;
    margin: 0 auto;
}

.article-header__meta {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.article-reading-time {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--muted);
    font-weight: 600;
}

.article-header__title {
    font-size: clamp(2rem, 3.6vw, 3.2rem);
    line-height: 1.12;
    margin: 0 0 16px;
    font-family: 'Fraunces', serif;
    letter-spacing: -0.02em;
    color: var(--text);
}

.article-header__lead {
    font-size: 1.12rem;
    color: var(--muted);
    line-height: 1.65;
    margin: 0 0 28px;
}

.article-header__byline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

/* ---- Author Card ---- */
.blog-author-card {
    display: flex;
    align-items: center;
    gap: 12px;
}

.blog-author-card__avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #fff;
    font-size: 1rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    text-transform: uppercase;
    flex-shrink: 0;
}

.blog-author-card__name {
    display: block;
    font-size: 0.94rem;
    font-weight: 700;
    color: var(--text);
}

.blog-author-card__date {
    font-size: 0.84rem;
    color: var(--muted);
}

/* ---- Share Row ---- */
.article-share-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.article-share-label {
    font-size: 0.84rem;
    color: var(--muted);
    font-weight: 600;
}

.article-share-btns {
    display: flex;
    gap: 6px;
}

.article-share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.72);
    color: var(--muted);
    cursor: pointer;
    transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
    text-decoration: none;
    font-family: inherit;
}

.article-share-btn:hover {
    background: var(--accent-soft);
    color: var(--accent-strong);
    border-color: var(--accent);
}

/* ---- Article Hero Image ---- */
.article-hero-image {
    padding: 0 0 40px;
}

.article-hero-image__wrap {
    border-radius: var(--radius-xl);
    overflow: hidden;
    max-height: 500px;
    background: linear-gradient(135deg, var(--accent-soft), rgba(187, 122, 31, 0.06));
    box-shadow: var(--shadow);
}

.article-hero-image__wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ---- Article Layout ---- */
.article-layout {
    padding-top: 0;
}

.article-layout__shell {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 40px;
    align-items: start;
    max-width: 1100px;
    margin: 0 auto;
}

/* ---- TOC ---- */
.article-toc {
    position: sticky;
    top: 100px;
}

.article-toc__inner {
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 24px 20px;
    box-shadow: 0 8px 24px rgba(16, 35, 61, 0.06);
}

.article-toc__heading {
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 0 0 14px;
}

.article-toc__nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.article-toc__link {
    display: block;
    padding: 6px 10px;
    font-size: 0.88rem;
    color: var(--muted);
    text-decoration: none;
    border-radius: 8px;
    border-left: 2px solid transparent;
    transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
    line-height: 1.35;
}

.article-toc__link:hover,
.article-toc__link.is-active {
    background: var(--accent-soft);
    color: var(--accent-strong);
    border-left-color: var(--accent);
}

.article-toc__progress-wrap {
    margin-top: 20px;
    height: 3px;
    background: var(--line);
    border-radius: 99px;
    overflow: hidden;
}

.article-toc__progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(to right, var(--accent), var(--accent-strong));
    border-radius: 99px;
    transition: width 0.1s linear;
}

/* ---- Article Body ---- */
.article-body {
    min-width: 0;
}

.article-section {
    margin-bottom: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--line);
}

.article-section:last-of-type {
    border-bottom: none;
}

.article-section__heading {
    font-size: clamp(1.25rem, 2vw, 1.7rem);
    font-family: 'Fraunces', serif;
    color: var(--text);
    margin: 0 0 18px;
    padding-top: 16px;
    scroll-margin-top: 100px;
}

.article-section__content {
    font-size: 1.02rem;
    color: var(--text);
    line-height: 1.75;
}

/* ---- Callouts ---- */
.article-callout {
    display: flex;
    gap: 16px;
    padding: 20px 24px;
    border-radius: var(--radius-md);
    margin: 24px 0;
    align-items: flex-start;
}

.article-callout--tip {
    background: rgba(29, 123, 99, 0.08);
    border-left: 4px solid var(--success);
}

.article-callout--warning {
    background: rgba(195, 90, 44, 0.08);
    border-left: 4px solid #c35a2c;
}

.article-callout--note {
    background: var(--accent-soft);
    border-left: 4px solid var(--accent);
}

.article-callout__icon {
    font-size: 1.25rem;
    flex-shrink: 0;
    line-height: 1;
    margin-top: 2px;
}

.article-callout__body strong {
    display: block;
    font-weight: 700;
    margin-bottom: 4px;
    font-size: 0.92rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text);
}

.article-callout__body p {
    margin: 0;
    font-size: 0.96rem;
    line-height: 1.65;
    color: var(--muted);
}

/* ---- Key Points List ---- */
.article-key-points {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.article-key-points li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.98rem;
    line-height: 1.6;
    color: var(--text);
}

.article-key-points li::before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #fff;
    font-size: 0.72rem;
    font-weight: 900;
    flex-shrink: 0;
    margin-top: 1px;
}

/* ---- Article Tags ---- */
.article-tags-section {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    padding: 28px 0;
    border-top: 1px solid var(--line);
    margin-top: 40px;
}

.article-tags-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.article-tag {
    padding: 5px 14px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-size: 0.82rem;
    font-weight: 600;
    border: 1px solid rgba(187, 122, 31, 0.2);
}

/* ---- Author Bio ---- */
.article-author-bio {
    display: flex;
    gap: 20px;
    padding: 28px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    margin-top: 40px;
    align-items: flex-start;
}

.article-author-bio__avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #fff;
    font-size: 1.4rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    text-transform: uppercase;
    flex-shrink: 0;
}

.article-author-bio__name {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
}

.article-author-bio__text {
    margin: 0;
    font-size: 0.92rem;
    color: var(--muted);
    line-height: 1.65;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
    .blog-featured-card {
        grid-template-columns: 1fr;
    }

    .blog-featured-card__image {
        min-height: 220px;
    }

    .blog-featured-card__body {
        padding: 28px 24px;
    }

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

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

    .article-toc {
        position: static;
        order: -1;
    }
}

@media (max-width: 600px) {
    .blog-grid,
    .blog-grid--3 {
        grid-template-columns: 1fr;
    }

    .blog-search {
        min-width: 0;
        width: 100%;
    }

    .article-header__byline {
        flex-direction: column;
        align-items: flex-start;
    }

    .blog-hero-aside {
        display: none;
    }
}