/* ═══════════════════════════════════════════════
   QuaMetry Blog — Modern Redesign
   ═══════════════════════════════════════════════ */

/* ──── Page Root ──── */
.blog-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

/* ═══════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════ */

.blog-hero {
    position: relative;
    text-align: center;
    padding: 72px 24px 64px;
    margin-bottom: 56px;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
}

.blog-hero-inner {
    position: relative;
    z-index: 1;
}

.blog-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border: 1px solid rgba(37, 99, 235, 0.2);
    padding: 5px 14px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.blog-hero-title {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.blog-hero-accent {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.blog-hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

/* Search Bar */
.blog-search-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 480px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1.5px solid var(--border-color);
    border-radius: 9999px;
    padding: 10px 20px;
    box-shadow: var(--shadow-md);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.blog-search-bar:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12), var(--shadow-md);
}

.blog-search-bar svg {
    color: var(--text-muted);
    flex-shrink: 0;
}

.blog-search-bar input {
    border: none;
    outline: none;
    background: transparent;
    font-family: var(--font);
    font-size: 14px;
    color: var(--text-primary);
    width: 100%;
}

.blog-search-bar input::placeholder {
    color: var(--text-muted);
}

/* Hero Decoration Blobs */
.hero-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    opacity: 0.25;
}

.hero-blob-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #3b82f6, transparent);
    top: -150px;
    left: -100px;
}

.hero-blob-2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #7c3aed, transparent);
    bottom: -100px;
    right: -80px;
}

[data-theme="dark"] .hero-blob-1 {
    opacity: 0.15;
}

[data-theme="dark"] .hero-blob-2 {
    opacity: 0.12;
}

/* ═══════════════════════════════════════════════
   FEATURED POST
   ═══════════════════════════════════════════════ */

.blog-featured {
    margin-bottom: 64px;
}

.featured-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-warning);
    background: var(--color-warning-light);
    padding: 4px 12px;
    border-radius: 9999px;
    margin-bottom: 16px;
}

.featured-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-radius: 20px;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: inherit;
    transition: transform var(--transition), box-shadow var(--transition);
    min-height: 420px;
}

.featured-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.featured-image {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #1e293b, #312e81);
    min-height: 320px;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.featured-card:hover .featured-image img {
    transform: scale(1.04);
}

.featured-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: rgba(255, 255, 255, 0.3);
}

.featured-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(124, 58, 237, 0.1));
}

.featured-content {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 16px;
}

.featured-category {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: 3px 12px;
    border-radius: 9999px;
    align-self: flex-start;
}

.featured-title {
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-primary);
    margin: 0;
}

.featured-excerpt {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
}

.meta-author {
    display: flex;
    align-items: center;
    gap: 8px;
}

.author-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

.meta-right {
    display: flex;
    align-items: center;
    gap: 5px;
}

.featured-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-primary);
    margin-top: 4px;
    transition: gap var(--transition);
}

.featured-card:hover .featured-cta {
    gap: 12px;
}

/* ═══════════════════════════════════════════════
   BLOG GRID
   ═══════════════════════════════════════════════ */

.blog-grid-section {
    margin-bottom: 64px;
}

.blog-grid-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.blog-grid-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.blog-count {
    font-size: 13px;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 4px 12px;
    border-radius: 9999px;
}

/* Card Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

/* Individual Card */
.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    box-shadow: var(--shadow-sm);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-hover);
}

/* Card Image */
.blog-card-image-link {
    position: relative;
    display: block;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #1e293b, #312e81);
    flex-shrink: 0;
}

.blog-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.blog-card:hover .blog-card-img {
    transform: scale(1.06);
}

.blog-card-img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.25);
}

.card-category-pill {
    position: absolute;
    bottom: 12px;
    left: 12px;
    padding: 3px 10px;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(6px);
    color: white;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Card Body */
.blog-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 12px;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted);
}

.card-meta-sep {
    opacity: 0.5;
}

.blog-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.35;
    margin: 0;
    color: var(--text-primary);
}

.blog-card-title a {
    color: inherit;
    text-decoration: none;
}

.blog-card-title a:hover {
    color: var(--color-primary);
}

.blog-card-excerpt {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.blog-card-read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    margin-top: auto;
    transition: gap var(--transition);
}

.blog-card:hover .blog-card-read-more {
    gap: 10px;
}

/* ═══════════════════════════════════════════════
   EMPTY & NO RESULTS STATES
   ═══════════════════════════════════════════════ */

.blog-empty {
    text-align: center;
    padding: 80px 24px;
    color: var(--text-muted);
}

.blog-empty .empty-icon {
    width: 96px;
    height: 96px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.blog-empty h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.blog-empty p {
    font-size: 0.95rem;
}

.blog-no-results {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 48px;
    color: var(--text-muted);
    text-align: center;
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    border-radius: 16px;
}

/* ═══════════════════════════════════════════════
   CTA BANNER
   ═══════════════════════════════════════════════ */

.blog-cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: 24px;
    padding: 64px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.blog-cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Ccircle cx='20' cy='20' r='1' fill='rgba(255,255,255,0.08)'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.blog-cta-inner {
    position: relative;
    z-index: 1;
}

.blog-cta-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.blog-cta-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    color: white;
    margin-bottom: 12px;
}

.blog-cta-desc {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.05rem;
    max-width: 480px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

.blog-cta-btn {
    display: inline-block;
    background: white;
    color: var(--color-primary) !important;
    padding: 14px 32px;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
    transition: transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.blog-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    color: var(--color-primary-hover) !important;
}

/* ═══════════════════════════════════════════════
   BREADCRUMB
   ═══════════════════════════════════════════════ */

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 24px 0 0;
    margin: 0 0 0;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item a {
    color: var(--color-primary);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    text-decoration: underline;
}

.breadcrumb-item+.breadcrumb-item {
    padding-left: 8px;
}

.breadcrumb-item+.breadcrumb-item::before {
    content: "/";
    padding-right: 8px;
    color: var(--text-muted);
}

/* ═══════════════════════════════════════════════
   POST DETAIL PAGE (preserved)
   ═══════════════════════════════════════════════ */

.blog-detail-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

.blog-detail-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 3rem;
    align-items: start;
}

.blog-detail-title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.blog-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.blog-detail-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-detail-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-md);
}

.blog-content {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.blog-content * {
    color: inherit;
}

.blog-content p {
    margin-bottom: 1.5rem;
}

.blog-content h2 {
    font-size: 2rem;
    margin: 2rem 0 1rem;
}

.blog-content h3 {
    font-size: 1.5rem;
    margin: 1.5rem 0 1rem;
}

.blog-content img {
    max-width: 100%;
    border-radius: 1rem;
}

/* Sidebar */
.blog-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-block {
    background: var(--bg-card);
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.sidebar-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.sidebar-item-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    display: block;
    margin-bottom: 3px;
    line-height: 1.4;
}

.sidebar-item-title:hover {
    color: var(--color-primary);
}

.sidebar-item-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ═══════════════════════════════════════════════
   DARK MODE OVERRIDES
   ═══════════════════════════════════════════════ */

[data-theme="dark"] .blog-search-bar {
    background: #1e293b;
    border-color: #334155;
}

[data-theme="dark"] .sidebar-block {
    background: #111827;
}

[data-theme="dark"] .blog-cta-section {
    background: linear-gradient(135deg, #1d4ed8 0%, #5b21b6 100%);
}

/* ═══════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════ */

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

    .featured-card {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .featured-image {
        height: 260px;
        min-height: 260px;
    }

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

@media (max-width: 768px) {
    .blog-page {
        padding: 0 16px 60px;
    }

    .blog-hero {
        padding: 48px 16px 40px;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .blog-cta-section {
        padding: 48px 24px;
    }

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

    .blog-detail-title {
        font-size: 2rem;
    }

    .blog-detail-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .featured-content {
        padding: 20px;
    }

    .blog-hero-title {
        font-size: 1.8rem;
    }
}