/* ============================================
   components.css — Cards, Tags, Badges, Buttons,
   Search, Pagination, Tag Filters
   "Editorial Blueprint" theme
   ============================================ */

/* ============================================
   Blog Intro / Hero Section
   ============================================ */
.blog-intro {
    max-width: var(--content-max);
    margin: 0 auto var(--space-10);
    padding: 0 var(--space-6);
}

.blog-tagline {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    max-width: 36rem;
}

/* Brand word colors in tagline */
.blog-tagline .brand-powerbi {
    color: #B8860B;
}

.blog-tagline .brand-microsoft {
    color: #00A4EF;
}

.blog-tagline .brand-fabric {
    color: #008B8B;
    font-style: italic;
}

.blog-author-line {
    font-size: var(--text-base);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.blog-author-line strong {
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================
   Tag Filter Bar
   ============================================ */
.tag-filter-bar {
    max-width: var(--content-max);
    margin: 0 auto var(--space-8);
    padding: 0 var(--space-6);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
}

.tag-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
    white-space: nowrap;
    letter-spacing: var(--tracking-wide);
}

.tag-pill:hover {
    border-color: var(--stone-400);
    color: var(--text-primary);
    background: var(--bg-elevated);
}

.tag-pill.active {
    background: var(--stone-900);
    color: var(--text-inverse);
    border-color: var(--stone-900);
    font-weight: 600;
}

.tag-pill .count {
    font-size: var(--text-xs);
    opacity: 0.6;
    margin-left: var(--space-1);
}

/* ============================================
   Post Cards
   ============================================ */

/* Posts grid container */
.posts-grid {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

/* Base card */
.post-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--duration-base) var(--ease-out);
    text-decoration: none;
    color: inherit;
}

.post-card:hover {
    border-color: var(--stone-300);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-2px);
    color: inherit;
}

/* Orange accent top border on hover */
.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-500);
    transform: scaleX(0);
    transition: transform var(--duration-base) var(--ease-out);
}

.post-card {
    position: relative;
}

.post-card:hover::before {
    transform: scaleX(1);
}

/* Card image */
.post-card-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-bottom: 1px solid var(--border);
}

/* Card body */
.post-card-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: var(--space-5);
    gap: var(--space-3);
}

/* Card meta top row */
.post-card-meta-top {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

/* Card title */
.post-card-title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 400;
    line-height: var(--leading-snug);
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card preview text */
.post-card-preview {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

/* Card footer */
.post-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border-light);
    margin-top: auto;
}

.post-card-date {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-variant-numeric: tabular-nums;
}

.post-card-read-more {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--accent-500);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    transition: gap var(--duration-fast);
}

.post-card:hover .post-card-read-more {
    gap: var(--space-2);
}

.post-card-read-more .material-symbols-outlined {
    font-size: 16px;
}

/* --- Featured Post Card --- */
.post-card--featured {
    grid-column: 1 / -1;
    flex-direction: row;
    border-left: 4px solid var(--accent-500);
}

.post-card--featured::before {
    display: none;
}

.post-card--featured .post-card-image {
    width: 45%;
    aspect-ratio: auto;
    min-height: 280px;
    border-bottom: none;
    border-right: 1px solid var(--border);
    flex-shrink: 0;
}

.post-card--featured .post-card-body {
    padding: var(--space-6) var(--space-8);
    gap: var(--space-4);
    justify-content: center;
}

.post-card--featured .post-card-title {
    font-size: var(--text-3xl);
    -webkit-line-clamp: 2;
}

.post-card--featured .post-card-preview {
    font-size: var(--text-base);
    -webkit-line-clamp: 4;
}

/* ============================================
   Tags (inline in cards and articles)
   ============================================ */
.tag {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--space-2);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: opacity var(--duration-fast);
    white-space: nowrap;
}

.tag:hover {
    opacity: 0.8;
}

/* Tag color variants */
.tag[data-tag="Power BI"],
.tag--powerbi {
    background: #dbeafe;
    color: #1e40af;
}

.tag[data-tag="PBIR"],
.tag--pbir {
    background: var(--accent-50);
    color: var(--accent-700);
}

.tag[data-tag="DAX"],
.tag[data-tag="UDF"],
.tag--dax {
    background: #ede9fe;
    color: #5b21b6;
}

.tag[data-tag="Fabric"],
.tag[data-tag="Direct Lake"],
.tag--fabric {
    background: #cffafe;
    color: #0e7490;
}

.tag[data-tag="DevOps"],
.tag[data-tag="Git"],
.tag--devops {
    background: #dcfce7;
    color: #15803d;
}

.tag[data-tag="TMDL"],
.tag[data-tag="Tabular Editor"],
.tag--tmdl {
    background: #fef3c7;
    color: #a16207;
}

.tag[data-tag="JSON"],
.tag--json {
    background: #fef3c7;
    color: #92400e;
}

.tag--default {
    background: var(--stone-100);
    color: var(--stone-700);
}

/* ============================================
   Difficulty Badges
   ============================================ */
.difficulty-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-3);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.difficulty-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.difficulty-badge--beginner {
    background: #dcfce7;
    color: #15803d;
}
.difficulty-badge--beginner::before {
    background: #16a34a;
}

.difficulty-badge--intermediate {
    background: #fef3c7;
    color: #a16207;
}
.difficulty-badge--intermediate::before {
    background: #ca8a04;
}

.difficulty-badge--advanced {
    background: var(--accent-50);
    color: var(--accent-700);
}
.difficulty-badge--advanced::before {
    background: var(--accent-500);
}

/* Reading time */
.reading-time {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.reading-time .material-symbols-outlined {
    font-size: 14px;
}

/* Tags row in cards */
.post-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-500);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-600);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--stone-900);
    color: var(--text-inverse);
}

.btn-secondary:hover {
    background: var(--stone-800);
    color: var(--text-inverse);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-strong);
}

.btn-outline:hover {
    border-color: var(--accent-500);
    color: var(--accent-600);
    background: var(--accent-50);
}

.btn .material-symbols-outlined {
    font-size: 18px;
}

/* ============================================
   Pagination
   ============================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    margin-top: var(--space-10);
    padding: 0 var(--space-6);
}

.page-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-3);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast);
    font-variant-numeric: tabular-nums;
}

.page-btn:hover {
    background: var(--bg-alt);
    border-color: var(--border);
    color: var(--text-primary);
}

.page-btn.active {
    background: var(--stone-900);
    color: var(--text-inverse);
    border-color: var(--stone-900);
    font-weight: 600;
}

.page-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ============================================
   No Results
   ============================================ */
.no-results {
    text-align: center;
    padding: var(--space-16) var(--space-6);
    max-width: var(--content-max);
    margin: 0 auto;
}

.no-results-icon {
    font-size: 48px;
    color: var(--stone-300);
    margin-bottom: var(--space-4);
}

.no-results h3 {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    margin-bottom: var(--space-2);
}

.no-results p {
    color: var(--text-secondary);
}

/* ============================================
   Section Divider
   ============================================ */
.section-divider {
    max-width: var(--content-max);
    margin: 0 auto var(--space-8);
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.section-divider h2 {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    color: var(--text-tertiary);
    white-space: nowrap;
}

.section-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* ============================================
   Responsive — Components
   ============================================ */
@media (max-width: 1024px) {
    .posts-grid {
        padding: 0 var(--space-5);
    }

    .blog-intro {
        padding: 0 var(--space-5);
    }

    .tag-filter-bar {
        padding: 0 var(--space-5);
    }
}

@media (max-width: 768px) {
    .posts-grid {
        grid-template-columns: 1fr;
        padding: 0 var(--space-4);
        gap: var(--space-4);
    }

    .post-card--featured {
        flex-direction: column;
        border-left: none;
        border-top: 4px solid var(--accent-500);
    }

    .post-card--featured .post-card-image {
        width: 100%;
        aspect-ratio: 16 / 9;
        min-height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .post-card--featured .post-card-body {
        padding: var(--space-5);
    }

    .post-card--featured .post-card-title {
        font-size: var(--text-2xl);
    }

    .blog-intro {
        padding: 0 var(--space-4);
        margin-bottom: var(--space-8);
    }

    .blog-tagline {
        font-size: var(--text-3xl);
    }

    .tag-filter-bar {
        padding: 0 var(--space-4);
        gap: var(--space-2);
        margin-bottom: var(--space-6);
    }

    .pagination {
        padding: 0 var(--space-4);
    }
}

@media (max-width: 480px) {
    .blog-tagline {
        font-size: var(--text-2xl);
    }

    .post-card-body {
        padding: var(--space-4);
    }

    .post-card-title {
        font-size: var(--text-lg);
    }
}

/* --- Visitor & Reader Counters --- */

.blog-visitor-count {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-top: var(--space-2);
}
.blog-visitor-count .material-symbols-outlined {
    font-size: 16px;
}

.post-card-readers {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    opacity: 0;
    transition: opacity var(--duration-fast);
}
.post-card-readers.loaded { opacity: 1; }
.post-card-readers .material-symbols-outlined { font-size: 14px; }

.counter-since {
    font-size: var(--text-xs);
    color: var(--text-quaternary, #a8a29e);
    font-style: italic;
}

/* --- Floating Sponsor Pill (homepage) --- */

.sponsor-pill {
    position: fixed;
    bottom: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4);
    background: white;
    border: 1px solid var(--stone-200);
    border-radius: 999px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.06);
    z-index: 100;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.sponsor-pill.hidden {
    transform: translateX(-50%) translateY(calc(100% + var(--space-4)));
    opacity: 0;
    pointer-events: none;
}

.sponsor-pill-text {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.sponsor-pill-btn {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border-radius: 999px;
    font-size: var(--text-xs);
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    transition: all var(--duration-fast);
}

.sponsor-pill-btn .material-symbols-outlined {
    font-size: 14px;
}

.sponsor-pill-btn--primary {
    background: var(--accent-500);
    color: white;
}

.sponsor-pill-btn--primary:hover {
    background: var(--accent-600);
}

.sponsor-pill-btn--outline {
    color: var(--text-secondary);
    border: 1px solid var(--stone-300);
}

.sponsor-pill-btn--outline:hover {
    border-color: var(--accent-500);
    color: var(--accent-600);
}

@media (max-width: 640px) {
    .sponsor-pill-text {
        display: none;
    }

    .sponsor-pill {
        padding: var(--space-2);
        gap: var(--space-2);
    }
}