/* ==========================================================================
   Blog list page — local main.css (blog/assets/css/main.css)
   Depends on: ../assets/css/main.css (variables, .container, .btn, .tag-txt, etc.)
   ========================================================================== */

/* --------------------------------------------------------------------------
   Blog Hero
   -------------------------------------------------------------------------- */
.blog-hero {
    position: relative;
    padding: 180px 0 100px;
    overflow: hidden;
    background: var(--c-bg);
}

.blog-hero-bg-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--f-display);
    font-size: 28vw;
    line-height: 1;
    color: rgba(0, 0, 0, 0.025);
    white-space: nowrap;
    user-select: none;
    pointer-events: none;
    z-index: 0;
}

.blog-hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.blog-hero-title {
    font-size: clamp(44px, 6vw, 80px);
    font-weight: 900;
    color: var(--c-dark);
    line-height: 1.05;
    letter-spacing: -2px;
    margin: 20px 0 28px;
}

.blog-hero-title .text-red {
    color: var(--c-accent);
    font-family: var(--f-display);
    letter-spacing: -3px;
}

.blog-hero-desc {
    font-size: 16px;
    color: #666;
    max-width: 520px;
    line-height: 1.8;
    margin-bottom: 40px;
}

.blog-post-count {
    display: inline-flex;
    align-items: baseline;
    gap: 8px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 14px 28px;
    background: white;
}

.blog-post-count-num {
    font-family: var(--f-display);
    font-size: 48px;
    font-weight: 900;
    color: var(--c-accent);
    line-height: 1;
    letter-spacing: -2px;
}

.blog-post-count-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--c-text);
}

/* --------------------------------------------------------------------------
   Breadcrumb Bar
   -------------------------------------------------------------------------- */
.blog-breadcrumb-bar {
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    background: var(--c-surface);
    padding: 14px 0;
}

.blog-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--c-text);
}

.blog-breadcrumb a {
    color: var(--c-text);
    font-weight: 600;
    transition: color 0.2s ease;
}

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

.blog-breadcrumb-sep {
    color: rgba(0, 0, 0, 0.25);
    font-size: 14px;
}

.blog-breadcrumb span[aria-current] {
    color: var(--c-dark);
    font-weight: 700;
}

/* --------------------------------------------------------------------------
   Blog Main Layout
   -------------------------------------------------------------------------- */
.blog-main {
    padding: 80px 0 120px;
}

/* --------------------------------------------------------------------------
   Featured Section
   -------------------------------------------------------------------------- */
.blog-featured-section {
    margin-bottom: 80px;
}

.blog-section-label {
    margin-bottom: 24px;
}

/* Featured card */
.blog-featured-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.07);
    overflow: hidden;
    transition: box-shadow 0.4s var(--ease), transform 0.4s var(--ease);
    text-decoration: none;
    color: inherit;
}

.blog-featured-card:hover {
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.blog-featured-visual {
    position: relative;
    min-height: 400px;
    background: var(--c-dark);
    overflow: hidden;
}

.blog-featured-visual-inner {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-featured-visual-text {
    font-family: var(--f-display);
    font-size: 15vw;
    color: rgba(255, 255, 255, 0.04);
    line-height: 1;
    user-select: none;
    white-space: nowrap;
    letter-spacing: -4px;
}

.blog-featured-visual-decor {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 60px;
    background: var(--c-accent);
}

.blog-featured-content {
    padding: 56px 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-featured-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.blog-badge-latest {
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: white;
    background: var(--c-accent);
    padding: 5px 12px;
}

.blog-badge-category {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--c-text);
    border: 1px solid rgba(0, 0, 0, 0.12);
    padding: 5px 12px;
}

.blog-featured-title {
    font-size: clamp(22px, 2.2vw, 32px);
    font-weight: 900;
    color: var(--c-dark);
    line-height: 1.25;
    letter-spacing: -0.8px;
    margin-bottom: 20px;
    transition: color 0.3s ease;
}

.blog-featured-card:hover .blog-featured-title {
    color: var(--c-accent);
}

.blog-featured-summary {
    font-size: 14px;
    color: #777;
    line-height: 1.85;
    margin-bottom: 32px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-featured-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 12px;
    color: #aaa;
    margin-bottom: 28px;
}

.blog-featured-meta-dot { color: rgba(0, 0, 0, 0.2); }

.blog-featured-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 36px;
}

.blog-tag {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--c-text);
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 4px 10px;
    transition: all 0.2s ease;
}

.blog-featured-card:hover .blog-tag {
    border-color: rgba(255, 74, 74, 0.3);
    color: var(--c-accent);
}

.blog-featured-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--c-dark);
    border-bottom: 2px solid var(--c-dark);
    padding-bottom: 4px;
    transition: all 0.3s ease;
    align-self: flex-start;
}

.blog-featured-cta svg {
    transition: transform 0.3s ease;
}

.blog-featured-card:hover .blog-featured-cta {
    color: var(--c-accent);
    border-color: var(--c-accent);
}

.blog-featured-card:hover .blog-featured-cta svg {
    transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   Blog List Section
   -------------------------------------------------------------------------- */
.blog-list-section {
    position: relative;
}

.blog-list-header {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.blog-list-title {
    font-size: 22px;
    font-weight: 900;
    color: var(--c-dark);
    letter-spacing: -0.5px;
}

.blog-list-count {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--c-text);
}

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

/* Standard card */
.blog-card {
    display: flex;
    flex-direction: column;
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.07);
    overflow: hidden;
    transition: box-shadow 0.4s var(--ease), transform 0.4s var(--ease);
    text-decoration: none;
    color: inherit;
}

.blog-card:hover {
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.blog-card-visual {
    position: relative;
    height: 180px;
    background: var(--c-dark);
    overflow: hidden;
    flex-shrink: 0;
}

.blog-card-visual-inner {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-card-visual-text {
    font-family: var(--f-display);
    font-size: 9vw;
    color: rgba(255, 255, 255, 0.04);
    user-select: none;
    white-space: nowrap;
    letter-spacing: -3px;
}

.blog-card-visual-accent {
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 40px;
    background: var(--c-accent);
}

.blog-card-content {
    padding: 28px 32px 32px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card-category {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--c-accent);
    margin-bottom: 12px;
}

.blog-card-title {
    font-size: 17px;
    font-weight: 800;
    color: var(--c-dark);
    line-height: 1.4;
    letter-spacing: -0.3px;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
}

.blog-card:hover .blog-card-title { color: var(--c-accent); }

.blog-card-summary {
    font-size: 13px;
    color: #888;
    line-height: 1.75;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 20px;
}

.blog-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    font-size: 11px;
    color: #bbb;
}

.blog-card-footer-right {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    color: var(--c-dark);
    letter-spacing: 0.5px;
    transition: color 0.2s ease;
}

.blog-card:hover .blog-card-footer-right { color: var(--c-accent); }

.blog-card-footer-right svg {
    transition: transform 0.3s ease;
}

.blog-card:hover .blog-card-footer-right svg {
    transform: translateX(3px);
}

/* Empty state */
.blog-empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--c-text);
}

.blog-empty-state p {
    font-size: 15px;
    line-height: 1.8;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding: 140px 0 70px;
    }

    .blog-hero-bg-text {
        font-size: 50vw;
    }

    .blog-hero-title {
        letter-spacing: -1px;
    }

    .blog-featured-card {
        grid-template-columns: 1fr;
    }

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

    .blog-featured-content {
        padding: 36px 28px;
    }

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

    .blog-list-section {
        margin-top: 60px;
    }
}

@media (max-width: 480px) {
    .blog-post-count-num {
        font-size: 36px;
    }

    .blog-featured-title {
        font-size: 20px;
    }

    .blog-card-visual {
        height: 140px;
    }
}