/*
 * blog_vibrant.css — Unified Blog Design System
 * Matches homepage: Space Grotesk + Inter, green/dark palette
 * Single file replaces blog.css + old blog_vibrant.css
 * Mobile-first, responsive breakpoints: 480, 640, 768, 1024, 1280
 */

/* ============================================================
   1. DESIGN TOKENS (inherit from vibrant.css, blog-specific overrides)
   ============================================================ */
:root {
    --blog-container: 1200px;
    --blog-sidebar: 300px;
    --blog-radius-sm: 8px;
    --blog-radius-md: 14px;
    --blog-radius-lg: 20px;
    --blog-radius-pill: 999px;
    --blog-shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --blog-shadow-md: 0 4px 16px rgba(0,0,0,0.3);
    --blog-shadow-lg: 0 12px 40px rgba(0,0,0,0.4);
    --blog-shadow-card: 0 2px 12px rgba(0,0,0,0.25);
    --blog-shadow-card-hover: 0 16px 40px rgba(29,158,117,0.15), 0 4px 12px rgba(0,0,0,0.3);
    --blog-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --blog-transition-fast: 0.15s ease;
    --blog-card-bg: rgba(255,255,255,0.04);
    --blog-card-border: rgba(255,255,255,0.06);
    --blog-prose-color: rgba(255,255,255,0.8);
}

:root.light-mode {
    --blog-shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --blog-shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --blog-shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
    --blog-shadow-card: 0 2px 8px rgba(0,0,0,0.06);
    --blog-shadow-card-hover: 0 16px 40px rgba(29,158,117,0.1), 0 4px 12px rgba(0,0,0,0.06);
    --blog-card-bg: #FFFFFF;
    --blog-card-border: rgba(0,0,0,0.08);
    --blog-prose-color: #334155;
}

/* ============================================================
   2. SCREEN-READER & FOCUS
   ============================================================ */
.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border-width: 0;
}

.blog-page-wrapper :focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: var(--blog-radius-sm);
}

/* ============================================================
   3. READING PROGRESS BAR
   ============================================================ */
.reading-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    z-index: 9999;
    transition: width 0.1s linear;
    pointer-events: none;
}

/* ============================================================
   4. BLOG LAYOUT WRAPPER
   ============================================================ */
.blog-page-wrapper {
    min-height: 100vh;
    padding-top: 64px; /* navbar offset */
}

.blog-container {
    width: 100%;
    max-width: var(--blog-container);
    margin-inline: auto;
    padding-inline: 1rem;
}

@media (min-width: 640px) {
    .blog-container { padding-inline: 1.5rem; }
}

@media (min-width: 1024px) {
    .blog-container { padding-inline: 2rem; }
}

/* ============================================================
   5. RATE LIMIT WARNING
   ============================================================ */
.blog-rate-limit-banner {
    background: rgba(249,115,22,0.12);
    border: 1px solid rgba(249,115,22,0.3);
    color: var(--accent);
    padding: 0.875rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.875rem;
    font-family: 'Inter', sans-serif;
    border-radius: var(--blog-radius-md);
    margin: 1rem auto;
    max-width: var(--blog-container);
}

.blog-rate-limit-banner svg {
    flex-shrink: 0;
    color: var(--accent);
}

/* ============================================================
   6. HERO SECTION
   ============================================================ */
.blog-hero {
    background: linear-gradient(135deg, #0a0d13 0%, #0f1117 40%, #162416 100%);
    padding: 5rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: -40%;
    left: 20%;
    width: 60%;
    height: 140%;
    background: radial-gradient(ellipse, rgba(29,158,117,0.12) 0%, transparent 60%);
    pointer-events: none;
}

.blog-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: 10%;
    width: 50%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(94,203,140,0.06) 0%, transparent 60%);
    pointer-events: none;
}

.blog-hero__inner {
    position: relative;
    z-index: 1;
    max-width: 640px;
    margin-inline: auto;
    padding-inline: 1.5rem;
}

.blog-hero__eyebrow {
    display: inline-block;
    background: rgba(29,158,117,0.15);
    color: var(--secondary);
    font-family: 'Inter', sans-serif;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.375rem 1rem;
    border-radius: var(--blog-radius-pill);
    margin-bottom: 1.25rem;
    border: 1px solid rgba(29,158,117,0.25);
}

.blog-hero__title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.875rem, 5vw, 3rem);
    font-weight: 700;
    color: #FFFFFF;
    line-height: 1.15;
    margin: 0 0 0.75rem;
    letter-spacing: -0.02em;
}

.blog-hero__subtitle {
    font-family: 'Inter', sans-serif;
    font-size: clamp(0.9375rem, 2vw, 1.0625rem);
    color: var(--muted);
    margin: 0 0 2rem;
    line-height: 1.7;
}

/* Search Form */
.blog-search-form {
    position: relative;
    display: flex;
    max-width: 480px;
    margin-inline: auto;
}

.blog-search-form__icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    pointer-events: none;
    width: 18px; height: 18px;
}

.blog-search-form__input {
    width: 100%;
    height: 52px;
    padding: 0 7rem 0 2.75rem;
    border: 1.5px solid rgba(255,255,255,0.1);
    border-radius: var(--blog-radius-pill);
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #FFFFFF;
    font-family: 'Inter', sans-serif;
    font-size: 0.9375rem;
    transition: border-color var(--blog-transition), background var(--blog-transition), box-shadow var(--blog-transition);
    -webkit-appearance: none;
}

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

.blog-search-form__input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255,255,255,0.08);
    box-shadow: 0 0 0 3px var(--glow-p);
}

.blog-search-form__btn {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    height: 42px;
    padding: 0 1.25rem;
    background: var(--primary);
    color: #FFFFFF;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: var(--blog-radius-pill);
    cursor: pointer;
    transition: background var(--blog-transition), transform var(--blog-transition-fast);
    white-space: nowrap;
}

.blog-search-form__btn:hover {
    background: var(--secondary);
    transform: translateY(-50%) scale(1.02);
}

/* ============================================================
   7. CATEGORY FILTER BAR
   ============================================================ */
.blog-category-bar {
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 64px; /* below navbar */
    z-index: 100;
    transition: box-shadow var(--blog-transition), background var(--blog-transition);
}

.blog-category-bar--shadow {
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

.blog-category-bar__scroller {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding: 0.75rem 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.blog-category-bar__scroller::-webkit-scrollbar {
    display: none;
}

/* ============================================================
   8. CATEGORY PILLS
   ============================================================ */
.blog-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.4375rem 1rem;
    border-radius: var(--blog-radius-pill);
    font-family: 'Inter', sans-serif;
    font-size: 0.8125rem;
    font-weight: 600;
    white-space: nowrap;
    text-decoration: none;
    border: 1.5px solid var(--border);
    color: var(--muted);
    background: transparent;
    transition: all var(--blog-transition);
    cursor: pointer;
}

.blog-pill:hover {
    color: var(--secondary);
    border-color: rgba(29,158,117,0.4);
    background: rgba(29,158,117,0.08);
    transform: translateY(-2px);
}

.blog-pill--active {
    color: #FFFFFF;
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 2px 12px var(--glow-p);
}

.blog-pill--active:hover {
    color: #FFFFFF;
    background: var(--secondary);
    border-color: var(--secondary);
}

/* ============================================================
   9. MAIN CONTENT LAYOUT
   ============================================================ */
.blog-main-section {
    padding: 2.5rem 0 4rem;
}

.blog-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
}

@media (min-width: 1024px) {
    .blog-layout {
        grid-template-columns: 1fr var(--blog-sidebar);
        align-items: start;
    }
}

/* ============================================================
   10. POST CARDS GRID
   ============================================================ */
.blog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .blog-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .blog-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
   11. FEATURED CARD
   ============================================================ */
.blog-card--featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr;
    border-radius: var(--blog-radius-lg);
    overflow: hidden;
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    border-bottom: 3px solid var(--primary);
    box-shadow: var(--blog-shadow-card);
    transition: box-shadow var(--blog-transition), transform var(--blog-transition);
    text-decoration: none;
    color: inherit;
}

@media (min-width: 768px) {
    .blog-card--featured { grid-template-columns: 1.2fr 1fr; }
}

.blog-card--featured:hover {
    box-shadow: var(--blog-shadow-card-hover);
    transform: translateY(-4px);
    border-color: rgba(29,158,117,0.3);
}

.blog-card--featured .blog-card__image-wrap {
    height: 100%;
    aspect-ratio: auto;
}

@media (min-width: 768px) {
    .blog-card--featured .blog-card__image-wrap {
        aspect-ratio: auto;
        min-height: 280px;
    }
}

.blog-card--featured .blog-card__body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-card--featured .blog-card__title {
    font-size: clamp(1.25rem, 3vw, 1.625rem);
}

/* ============================================================
   12. STANDARD CARD
   ============================================================ */
.blog-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--blog-radius-lg);
    overflow: hidden;
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    box-shadow: var(--blog-shadow-card);
    text-decoration: none;
    color: inherit;
    transition: box-shadow var(--blog-transition), transform var(--blog-transition), border-color var(--blog-transition);
    opacity: 0;
    transform: translateY(24px);
}

.blog-card.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow var(--blog-transition);
}

.blog-card:hover {
    box-shadow: var(--blog-shadow-card-hover);
    transform: translateY(-6px);
    border-color: rgba(29,158,117,0.3);
}

/* Image */
.blog-card__image-wrap {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: var(--bg-section);
    flex-shrink: 0;
}

.blog-card__image {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
    display: block;
}

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

/* Placeholder */
.blog-card__placeholder {
    width: 100%; height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: rgba(255,255,255,0.7);
    user-select: none;
}

/* Badge */
.blog-card__badge {
    position: absolute;
    top: 0.75rem; left: 0.75rem;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.75rem;
    border-radius: var(--blog-radius-pill);
    font-family: 'Inter', sans-serif;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(6px);
    color: #FFFFFF;
    border: 1px solid rgba(255,255,255,0.12);
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Featured label */
.blog-card__featured-label {
    position: absolute;
    top: 0.75rem; right: 0.75rem;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.3rem 0.65rem;
    border-radius: var(--blog-radius-pill);
    font-family: 'Inter', sans-serif;
    font-size: 0.6875rem;
    font-weight: 700;
    background: var(--accent);
    color: #1a1a1a;
    white-space: nowrap;
}

/* Body */
.blog-card__body {
    padding: 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

@media (min-width: 640px) {
    .blog-card__body { padding: 1.5rem; }
}

/* Title */
.blog-card__title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 600;
    line-height: 1.35;
    color: var(--text);
    margin: 0 0 0.625rem;
    text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--blog-transition-fast);
}

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

.blog-card:hover .blog-card__title,
.blog-card:hover .blog-card__title a {
    color: var(--secondary);
}

/* Excerpt */
.blog-card__excerpt {
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    line-height: 1.65;
    color: var(--muted);
    margin: 0 0 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

/* Footer */
.blog-card__footer {
    margin-top: auto;
    padding-top: 0.875rem;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.blog-card__meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    color: var(--muted);
}

.blog-card__meta-dot {
    width: 3px; height: 3px;
    border-radius: 50%;
    background: var(--muted);
    opacity: 0.5;
    flex-shrink: 0;
}

.blog-card__read-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    white-space: nowrap;
    transition: gap var(--blog-transition-fast), color var(--blog-transition-fast);
}

.blog-card__read-link:hover {
    color: var(--secondary);
    gap: 0.5rem;
}

/* ============================================================
   13. EMPTY STATE
   ============================================================ */
.blog-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 5rem 2rem;
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    border-radius: var(--blog-radius-lg);
}

.blog-empty__icon {
    font-size: 3.5rem;
    opacity: 0.2;
    margin-bottom: 1.25rem;
    line-height: 1;
}

.blog-empty__title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 0.625rem;
}

.blog-empty__text {
    font-family: 'Inter', sans-serif;
    font-size: 0.9375rem;
    color: var(--muted);
    max-width: 420px;
    margin: 0 auto 1.75rem;
    line-height: 1.65;
}

.blog-empty__link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.75rem 1.75rem;
    background: var(--primary);
    color: #FFFFFF;
    font-family: 'Inter', sans-serif;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--blog-radius-pill);
    text-decoration: none;
    transition: background var(--blog-transition), transform var(--blog-transition-fast);
}

.blog-empty__link:hover {
    background: var(--secondary);
    transform: translateY(-2px);
}

/* ============================================================
   14. SIDEBAR
   ============================================================ */
.blog-sidebar {
    display: none;
}

@media (min-width: 1024px) {
    .blog-sidebar {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
        position: sticky;
        top: calc(64px + 52px + 1rem); /* navbar + category bar + gap */
    }
}

.blog-widget {
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    border-radius: var(--blog-radius-lg);
    overflow: hidden;
}

.blog-widget__header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted);
}

.blog-widget__title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.blog-widget__body {
    padding: 0.5rem 0;
}

.blog-cat-list {
    list-style: none;
    margin: 0; padding: 0;
}

.blog-cat-list__item {
    border-bottom: 1px solid var(--border);
}

.blog-cat-list__item:last-child {
    border-bottom: none;
}

.blog-cat-list__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 1.25rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted);
    text-decoration: none;
    transition: color var(--blog-transition-fast), background var(--blog-transition-fast);
}

.blog-cat-list__link:hover {
    color: var(--secondary);
    background: rgba(29,158,117,0.06);
}

.blog-cat-list__count {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--muted);
    background: rgba(255,255,255,0.06);
    padding: 0.15rem 0.5rem;
    border-radius: var(--blog-radius-pill);
}

:root.light-mode .blog-cat-list__count {
    background: rgba(0,0,0,0.05);
}

/* ============================================================
   15. PAGINATION
   ============================================================ */
.blog-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.blog-pagination__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px; height: 40px;
    padding: 0 0.75rem;
    border-radius: var(--blog-radius-sm);
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--muted);
    background: var(--blog-card-bg);
    border: 1.5px solid var(--border);
    transition: all var(--blog-transition);
}

.blog-pagination__link:hover {
    color: var(--secondary);
    border-color: rgba(29,158,117,0.4);
    background: rgba(29,158,117,0.08);
    transform: translateY(-1px);
}

.blog-pagination__link--active {
    color: #FFFFFF;
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 2px 12px var(--glow-p);
    pointer-events: none;
}

.blog-pagination__link--disabled {
    opacity: 0.3;
    pointer-events: none;
}

.blog-pagination__ellipsis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    font-size: 0.875rem;
    color: var(--muted);
    user-select: none;
}

/* ============================================================
   16. SINGLE POST — BREADCRUMB
   ============================================================ */
.blog-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 1.25rem 0;
    font-family: 'Inter', sans-serif;
    font-size: 0.8125rem;
    color: var(--muted);
    flex-wrap: wrap;
}

.blog-breadcrumb a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--blog-transition-fast);
}

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

.blog-breadcrumb__sep { color: var(--muted); opacity: 0.4; }

/* ============================================================
   17. SINGLE POST — HEADER
   ============================================================ */
.post-header {
    padding: 2rem 0 1.5rem;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.post-header__badges {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.post-header__category {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.875rem;
    border-radius: var(--blog-radius-pill);
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background: rgba(29,158,117,0.12);
    color: var(--secondary);
    text-decoration: none;
    border: 1px solid rgba(29,158,117,0.2);
    transition: all var(--blog-transition-fast);
}

.post-header__category:hover {
    background: var(--primary);
    color: #FFFFFF;
    border-color: var(--primary);
}

.post-header__title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.625rem, 4.5vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text);
    margin: 0 0 1.25rem;
    letter-spacing: -0.02em;
}

.post-header__meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    color: var(--muted);
    flex-wrap: wrap;
}

.post-header__meta-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.post-header__meta svg {
    width: 15px; height: 15px;
    flex-shrink: 0;
    opacity: 0.6;
}

/* ============================================================
   17B. POST SHARE
   ============================================================ */
.post-share {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

/* ============================================================
   18. FEATURED IMAGE
   ============================================================ */
.post-featured-image {
    width: 100%;
    max-width: 800px;
    aspect-ratio: 16/9;
    object-fit: cover;
    border-radius: var(--blog-radius-lg);
    display: block;
    margin: 0 auto 2rem auto;
    box-shadow: var(--blog-shadow-lg);
}

@media (min-width: 768px) {
    .post-featured-image {
        border-radius: var(--blog-radius-lg);
        margin-bottom: 2.5rem;
    }
}

/* ============================================================
   19. POST BODY LAYOUT
   ============================================================ */
.post-body-layout {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    max-width: 800px;
    margin: 0 auto;
}

@media (min-width: 1024px) {
    .post-body-layout {
        /* Removed the 240px sidebar grid to match centered book reader UI */
    }
}

/* ============================================================
   20. PROSE STYLES
   ============================================================ */
.blog-prose {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-primary);
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.blog-prose p { margin: 0 0 1.5rem; }

.blog-prose h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.25rem, 3vw, 1.625rem);
    font-weight: 700;
    color: var(--text);
    margin: 2.5rem 0 1rem;
    letter-spacing: -0.01em;
    line-height: 1.25;
    scroll-margin-top: 140px;
}

.blog-prose h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.0625rem, 2.5vw, 1.25rem);
    font-weight: 600;
    color: var(--text);
    margin: 2rem 0 0.75rem;
    line-height: 1.3;
    scroll-margin-top: 140px;
}

.blog-prose h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin: 1.75rem 0 0.5rem;
    scroll-margin-top: 140px;
}

.blog-prose ul, .blog-prose ol {
    margin: 0 0 1.5rem 1.25rem;
    padding: 0;
}

.blog-prose li {
    margin-bottom: 0.375rem;
    line-height: 1.7;
}

.blog-prose a {
    color: var(--secondary);
    text-decoration: underline;
    text-decoration-color: rgba(94,203,140,0.3);
    text-underline-offset: 2px;
    transition: color var(--blog-transition-fast);
}

.blog-prose a:hover {
    color: var(--primary);
    text-decoration-color: var(--primary);
}

.blog-prose blockquote {
    margin: 2rem 0;
    padding: 1.25rem 1.5rem;
    border-left: 4px solid var(--primary);
    background: rgba(29,158,117,0.06);
    border-radius: 0 var(--blog-radius-md) var(--blog-radius-md) 0;
    font-style: italic;
    color: var(--blog-prose-color);
}

.blog-prose blockquote p:last-child { margin-bottom: 0; }

.blog-prose code {
    font-family: 'Courier New', monospace;
    font-size: 0.875em;
    background: rgba(255,255,255,0.06);
    color: var(--secondary);
    padding: 0.125em 0.375em;
    border-radius: var(--blog-radius-sm);
    border: 1px solid var(--border);
}

:root.light-mode .blog-prose code {
    background: #f1f5f9;
    color: #0f172a;
}

.blog-prose pre {
    background: #0a0d13;
    color: #E2E8F0;
    border-radius: var(--blog-radius-md);
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
    margin: 0 0 1.5rem;
    font-size: 0.875rem;
    line-height: 1.7;
    border: 1px solid var(--border);
}

.blog-prose pre code {
    background: none; color: inherit;
    padding: 0; border: none;
}

.blog-prose img {
    max-width: 100%;
    height: auto;
    border-radius: 8px; /* Match reader.css */
    display: block;
    margin: 2rem auto;
    box-shadow: var(--blog-shadow-md);
}

.blog-prose hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2.5rem 0;
}

.blog-prose table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 1.5rem;
    font-size: 0.9375rem;
    overflow-x: auto;
    display: block;
}

.blog-prose th, .blog-prose td {
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--border);
    text-align: left;
}

.blog-prose th {
    background: rgba(255,255,255,0.04);
    font-weight: 600;
    font-family: 'Space Grotesk', sans-serif;
}

:root.light-mode .blog-prose th {
    background: #f8fafc;
}

/* ============================================================
   21. TABLE OF CONTENTS
   ============================================================ */
.toc-sidebar { display: none; }

/* ToC sidebar permanently hidden — post reads like the book reader, no distraction */
@media (min-width: 1024px) {
    .toc-sidebar {
        display: none;
    }
}

.toc-box {
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    border-radius: var(--blog-radius-lg);
    padding: 1.25rem;
}

.toc-box__title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 0 0 0.875rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.toc-list {
    list-style: none;
    margin: 0; padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.toc-list a {
    display: block;
    font-family: 'Inter', sans-serif;
    font-size: 0.8125rem;
    line-height: 1.45;
    color: var(--muted);
    text-decoration: none;
    padding: 0.3125rem 0.625rem;
    border-left: 2px solid transparent;
    border-radius: 0 var(--blog-radius-sm) var(--blog-radius-sm) 0;
    transition: all var(--blog-transition-fast);
}

.toc-list a:hover {
    color: var(--secondary);
    background: rgba(29,158,117,0.06);
    border-left-color: rgba(29,158,117,0.3);
}

.toc-list a.toc-active {
    color: var(--secondary);
    background: rgba(29,158,117,0.1);
    border-left-color: var(--primary);
    font-weight: 600;
}

.toc-list .toc-h3 a {
    padding-left: 1.25rem;
    font-size: 0.75rem;
}

/* ============================================================
   22. SHARE BUTTONS
   ============================================================ */
.post-share {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    flex-wrap: wrap;
}

.post-share__label {
    font-family: 'Inter', sans-serif;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.post-share__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 1.5px solid var(--border);
    background: var(--blog-card-bg);
    color: var(--muted);
    text-decoration: none;
    transition: all var(--blog-transition);
    cursor: pointer;
}

.post-share__btn:hover {
    color: var(--secondary);
    border-color: rgba(29,158,117,0.4);
    background: rgba(29,158,117,0.08);
    transform: translateY(-2px);
}

.post-share__btn--copy.is-copied {
    color: var(--secondary);
    border-color: var(--primary);
    background: rgba(29,158,117,0.12);
}

/* ============================================================
   23. POST FOOTER BAR
   ============================================================ */
.post-footer-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border);
    margin-top: 2.5rem;
}

.post-back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    transition: gap var(--blog-transition-fast), color var(--blog-transition-fast);
}

.post-back-link:hover {
    color: var(--secondary);
    gap: 0.625rem;
}

/* ============================================================
   24. RELATED POSTS
   ============================================================ */
.related-posts {
    padding: 3rem 0 4rem;
    background: var(--bg-section);
    border-top: 1px solid var(--border);
}

.related-posts__header { margin-bottom: 2rem; }

.related-posts__title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.25rem, 3vw, 1.625rem);
    font-weight: 700;
    color: var(--text);
    margin: 0;
}

.related-posts__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

@media (min-width: 640px) {
    .related-posts__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .related-posts__grid { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
   25. PRINT STYLES
   ============================================================ */
@media print {
    .reading-progress-bar,
    .blog-hero,
    .blog-category-bar,
    .blog-sidebar,
    .toc-sidebar,
    .post-share,
    .post-footer-bar,
    .related-posts,
    .blog-breadcrumb,
    .navbar,
    .mobile-bottom-nav,
    .footer-strip-new {
        display: none !important;
    }

    .blog-page-wrapper {
        background: #FFFFFF;
        color: #000000;
        padding-top: 0;
    }

    .post-header__title {
        font-size: 24pt;
        color: #000000;
    }

    .blog-prose {
        font-size: 11pt;
        line-height: 1.6;
        color: #1a1a1a;
        max-width: 100%;
    }

    .post-body-layout { display: block; }
}

/* ============================================================
   26. MOBILE RESPONSIVE OVERRIDES
   ============================================================ */

/* Small phones */
@media (max-width: 480px) {
    .blog-hero {
        padding: 3.5rem 0 3rem;
    }
    .blog-hero__title {
        font-size: 1.625rem;
    }
    .blog-search-form__input {
        height: 46px;
        font-size: 0.875rem;
    }
    .blog-search-form__btn {
        height: 36px;
        padding: 0 1rem;
        font-size: 0.8125rem;
    }
    .blog-main-section {
        padding: 1.5rem 0 3rem;
    }
    .blog-card__body {
        padding: 1rem;
    }
    .post-header__title {
        font-size: 1.5rem;
    }
    .post-header__meta {
        gap: 0.625rem;
        font-size: 0.8125rem;
    }
}

/* Ensure mobile bottom nav doesn't overlap content */
@media (max-width: 768px) {
    .blog-page-wrapper {
        padding-bottom: 72px; /* bottom nav height */
    }
}

/* ============================================================
   26. READER CONTROLS (Typography, Background, Size)
   ============================================================ */
.blog-reader-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    padding: 1rem;
    margin: 0 auto 2rem auto;
    max-width: 800px;
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    border-radius: var(--blog-radius-md);
}

.blog-reader-controls__group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-reader-controls__label {
    font-size: 0.8125rem;
    color: var(--muted);
    font-weight: 500;
    margin-right: 0.25rem;
}

.blog-reader-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'Inter', sans-serif;
}

.blog-reader-btn:hover, .blog-reader-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* Modifiers applied to .blog-prose via JS */
.blog-prose.prose-font-sans,
.blog-prose.prose-font-sans * { font-family: 'Inter', sans-serif !important; }

.blog-prose.prose-font-serif,
.blog-prose.prose-font-serif * { font-family: 'Source Serif 4', serif !important; }

.blog-prose.prose-size-sm, 
.blog-prose.prose-size-sm p, 
.blog-prose.prose-size-sm span { font-size: 1rem !important; line-height: 1.7 !important; }

.blog-prose.prose-size-md, 
.blog-prose.prose-size-md p, 
.blog-prose.prose-size-md span { font-size: 1.1rem !important; line-height: 1.8 !important; }

.blog-prose.prose-size-lg, 
.blog-prose.prose-size-lg p, 
.blog-prose.prose-size-lg span { font-size: 1.25rem !important; line-height: 1.9 !important; }

/* Theming applied to the body so all variables update seamlessly */
body.reader-theme-sepia {
    --bg-dark: #fdf6e3;
    --bg-dark-rgb: 253, 246, 227;
    --bg-deep: #f5eedc;
    --bg-section: #fdf6e3;
    --bg-footer: #f5eedc;
    --text: #4a3e2a;
    --muted: #8b7d6b;
    --border: rgba(74, 62, 42, 0.15);
    --blog-card-bg: rgba(255, 255, 255, 0.5);
    --blog-card-border: rgba(74, 62, 42, 0.1);
    --blog-prose-color: #4a3e2a;
    background-color: var(--bg-dark) !important;
    color: var(--text) !important;
}

body.reader-theme-light {
    --bg-dark: #ffffff;
    --bg-dark-rgb: 255, 255, 255;
    --bg-deep: #f8fafc;
    --bg-section: #ffffff;
    --bg-footer: #f1f5f9;
    --text: #0f172a;
    --muted: #64748b;
    --border: rgba(0, 0, 0, 0.1);
    --blog-card-bg: rgba(0, 0, 0, 0.02);
    --blog-card-border: rgba(0, 0, 0, 0.08);
    --blog-prose-color: #1a1a1a;
    background-color: var(--bg-dark) !important;
    color: var(--text) !important;
}

body.reader-theme-dark {
    --bg-dark: #0f172a;
    --bg-dark-rgb: 15, 23, 42;
    --bg-deep: #0a0d13;
    --bg-section: #0f172a;
    --bg-footer: #0a0d13;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --blog-card-bg: rgba(255, 255, 255, 0.03);
    --blog-card-border: rgba(255, 255, 255, 0.08);
    --blog-prose-color: #e2e8f0;
    background-color: var(--bg-dark) !important;
    color: var(--text) !important;
}

/* Force TinyMCE inline styles to respect the reader themes */
body.reader-theme-sepia .blog-prose,
body.reader-theme-sepia .blog-prose * {
    color: var(--text) !important;
}

body.reader-theme-light .blog-prose,
body.reader-theme-light .blog-prose * {
    color: var(--text) !important;
}

body.reader-theme-dark .blog-prose,
body.reader-theme-dark .blog-prose * {
    color: var(--text) !important;
}