/* ============================================================
   ShabdSetu Blog – Listing & Article Styles
   Matches Apple-style design system from base.css
   ============================================================ */

/* ==================== BLOG HERO ==================== */
.blog-hero {
    text-align: center;
    padding: 4rem 0 3rem;
}

.blog-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.1;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.blog-hero-gradient {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blog-hero p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ==================== FEATURED POST ==================== */
.blog-featured {
    padding: 0 0 3rem;
}

.blog-featured-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    text-decoration: none;
    color: var(--primary);
    transition: transform var(--duration-base) var(--ease-smooth),
                box-shadow var(--duration-base) var(--ease-smooth),
                border-color var(--duration-base) var(--ease-smooth);
    /* scroll reveal */
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease-out-expo),
                transform 0.6s var(--ease-out-expo),
                box-shadow var(--duration-base) var(--ease-smooth),
                border-color var(--duration-base) var(--ease-smooth);
}

.blog-featured-card.blog-visible {
    opacity: 1;
    transform: translateY(0);
}

.blog-featured-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-blue);
}

.blog-featured-img {
    position: relative;
    min-height: 320px;
    background: linear-gradient(135deg, #0a1628 0%, #1a1040 40%, #0d2847 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.blog-featured-img::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(0, 113, 227, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(175, 82, 222, 0.12) 0%, transparent 50%);
    animation: blogGlow 12s ease-in-out infinite alternate;
}

.blog-featured-img-icon {
    position: relative;
    z-index: 1;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.blog-featured-img-icon svg {
    width: 40px;
    height: 40px;
    color: rgba(255, 255, 255, 0.7);
}

.blog-featured-body {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1rem;
}

.blog-featured-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    background: rgba(0, 113, 227, 0.1);
    color: var(--accent-blue);
    padding: 0.3rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    width: fit-content;
}

.blog-featured-badge svg {
    width: 12px;
    height: 12px;
}

.blog-featured-body h2 {
    font-family: var(--font-display);
    font-size: 1.625rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.25;
    color: var(--primary);
}

.blog-featured-excerpt {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-featured-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.5rem;
    font-size: 0.8125rem;
    color: var(--gray);
}

.blog-featured-meta span {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.blog-featured-meta svg {
    width: 14px;
    height: 14px;
    opacity: 0.6;
}

/* ==================== POSTS GRID ==================== */
.blog-grid-section {
    padding: 0 0 3rem;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.blog-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    text-decoration: none;
    color: var(--primary);
    transition: transform var(--duration-base) var(--ease-smooth),
                box-shadow var(--duration-base) var(--ease-smooth),
                border-color var(--duration-base) var(--ease-smooth);
    /* scroll reveal */
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease-out-expo),
                transform 0.6s var(--ease-out-expo),
                box-shadow var(--duration-base) var(--ease-smooth),
                border-color var(--duration-base) var(--ease-smooth);
}

.blog-card.blog-visible {
    opacity: 1;
    transform: translateY(0);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-blue);
}

.blog-card-img {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.blog-card-img::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    animation: blogGlow 15s ease-in-out infinite alternate;
}

.blog-card-img.blog-card-img--amber {
    background: linear-gradient(135deg, #1a1200 0%, #2d1a00 50%, #1a0d00 100%);
}

.blog-card-img.blog-card-img--amber::before {
    background: radial-gradient(circle at 40% 40%, rgba(255, 159, 10, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 70% 70%, rgba(255, 149, 0, 0.1) 0%, transparent 50%);
}

.blog-card-img.blog-card-img--purple {
    background: linear-gradient(135deg, #140a28 0%, #1a0d30 50%, #0d1a28 100%);
}

.blog-card-img.blog-card-img--purple::before {
    background: radial-gradient(circle at 40% 40%, rgba(175, 82, 222, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 70% 70%, rgba(52, 199, 89, 0.1) 0%, transparent 50%);
}

.blog-card-img-icon {
    position: relative;
    z-index: 1;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.blog-card-img-icon svg {
    width: 28px;
    height: 28px;
    color: rgba(255, 255, 255, 0.7);
}

.blog-card-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.blog-card-category {
    display: inline-flex;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    width: fit-content;
}

.blog-card-category--amber {
    background: rgba(255, 159, 10, 0.1);
    color: var(--accent-amber);
}

.blog-card-category--purple {
    background: rgba(175, 82, 222, 0.1);
    color: var(--accent-purple);
}

.blog-card-body h3 {
    font-family: var(--font-display);
    font-size: 1.1875rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.3;
    color: var(--primary);
}

.blog-card-excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--gray);
}

.blog-card-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.blog-card-meta svg {
    width: 13px;
    height: 13px;
    opacity: 0.6;
}

/* ==================== TOPICS SECTION ==================== */
.blog-topics {
    padding: 1rem 0 3rem;
    text-align: center;
    /* scroll reveal */
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease-out-expo),
                transform 0.6s var(--ease-out-expo);
}

.blog-topics.blog-visible {
    opacity: 1;
    transform: translateY(0);
}

.blog-topics h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.blog-topics-pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.blog-topic-pill {
    padding: 0.4375rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-strong);
    background: var(--card-bg);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--duration-fast) ease;
    cursor: default;
}

.blog-topic-pill:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: rgba(0, 113, 227, 0.05);
}

/* ==================== ANIMATIONS ==================== */
@keyframes blogGlow {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(-5%, 3%) rotate(8deg); }
}

/* ============================================================
   BLOG ARTICLE PAGE STYLES
   ============================================================ */

/* ==================== ARTICLE HEADER ==================== */
.blog-article {
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

.blog-back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
    transition: opacity var(--duration-fast) ease;
}

.blog-back-link:hover {
    opacity: 0.7;
}

.blog-back-link svg {
    width: 16px;
    height: 16px;
}

.blog-article-header {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.blog-article-meta-top {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.blog-article-category {
    display: inline-flex;
    padding: 0.3rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.blog-article-category--blue {
    background: rgba(0, 113, 227, 0.1);
    color: var(--accent-blue);
}

.blog-article-category--amber {
    background: rgba(255, 159, 10, 0.1);
    color: var(--accent-amber);
}

.blog-article-category--purple {
    background: rgba(175, 82, 222, 0.1);
    color: var(--accent-purple);
}

.blog-article-read-time {
    font-size: 0.8125rem;
    color: var(--gray);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.blog-article-read-time svg {
    width: 14px;
    height: 14px;
    opacity: 0.6;
}

.blog-article-header h1 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.15;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.blog-article-author {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

/* ==================== ARTICLE BODY ==================== */
.blog-article-body {
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--primary);
}

.blog-article-body h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--primary);
    margin-top: 2.5rem;
    margin-bottom: 0.875rem;
    line-height: 1.25;
}

.blog-article-body h3 {
    font-family: var(--font-display);
    font-size: 1.1875rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    color: var(--primary);
    margin-top: 2rem;
    margin-bottom: 0.625rem;
    line-height: 1.3;
}

.blog-article-body p {
    margin-bottom: 1.25rem;
    color: var(--primary);
    opacity: 0.88;
}

.blog-article-body strong {
    font-weight: 600;
    color: var(--primary);
    opacity: 1;
}

.blog-article-body em {
    font-style: italic;
}

.blog-article-body ul,
.blog-article-body ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
}

.blog-article-body li {
    margin-bottom: 0.5rem;
    color: var(--primary);
    opacity: 0.88;
}

.blog-article-body a {
    color: var(--accent-blue);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: opacity var(--duration-fast) ease;
}

.blog-article-body a:hover {
    opacity: 0.7;
}

.blog-article-body hr {
    border: none;
    height: 1px;
    background: var(--border);
    margin: 2.5rem 0;
}

.blog-article-body blockquote {
    border-left: 3px solid var(--accent-blue);
    padding: 0.75rem 1.25rem;
    margin: 1.5rem 0;
    background: rgba(0, 113, 227, 0.03);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--text-secondary);
}

/* Article Tables */
.blog-article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
}

.blog-article-body thead {
    background: var(--background-secondary);
}

.blog-article-body th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--primary);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-strong);
}

.blog-article-body td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--primary);
    opacity: 0.88;
}

.blog-article-body tbody tr:last-child td {
    border-bottom: none;
}

.blog-article-body tbody tr:hover {
    background: rgba(0, 113, 227, 0.02);
}

/* Bold row for totals */
.blog-article-body tbody tr:last-child td {
    font-weight: 600;
    opacity: 1;
}

/* ==================== ARTICLE TAGS ==================== */
.blog-article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.blog-article-tag {
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--card-bg);
}

/* ==================== READ MORE SECTION ==================== */
.blog-read-more {
    margin-top: 3rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border);
}

.blog-read-more h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--primary);
    margin-bottom: 1.25rem;
}

.blog-read-more-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.blog-read-more-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.25rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--primary);
    transition: all var(--duration-base) var(--ease-smooth);
}

.blog-read-more-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.blog-read-more-card-cat {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--accent-blue);
}

.blog-read-more-card h4 {
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.35;
    letter-spacing: -0.01em;
}

.blog-read-more-card-time {
    font-size: 0.75rem;
    color: var(--gray);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .blog-hero {
        padding: 2.5rem 0 2rem;
    }

    .blog-hero p {
        font-size: 1rem;
    }

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

    .blog-featured-img {
        min-height: 200px;
    }

    .blog-featured-body {
        padding: 1.5rem;
    }

    .blog-featured-body h2 {
        font-size: 1.375rem;
    }

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

    .blog-card-img {
        height: 160px;
    }

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

    .blog-article {
        padding: 1.5rem 1rem 3rem;
    }

    .blog-article-body {
        font-size: 1rem;
    }

    .blog-article-body table {
        font-size: 0.8125rem;
    }

    .blog-article-body th,
    .blog-article-body td {
        padding: 0.5rem 0.625rem;
    }
}

@media (max-width: 480px) {
    .blog-featured-body h2 {
        font-size: 1.1875rem;
    }

    .blog-card-body h3 {
        font-size: 1.0625rem;
    }

    .blog-topics-pills {
        gap: 0.375rem;
    }

    .blog-topic-pill {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
}