/* ============================================================
   BLOG.CSS — STEMAIR Academy
   Premium Blog Listing + Blog Details styling.
   Consumes existing :root design tokens only — no new palette,
   no overrides of global styles.
============================================================ */

/* ========================================
   BLOG — BASE
======================================== */

.blog-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-text);
    font-size: var(--fs-small);
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--primary-color);
}

.blog-eyebrow::before {
    content: "";
    width: 20px;
    height: 2px;
    background: var(--accent-color);
    display: inline-block;
    border-radius: var(--radius-pill);
}

.blog-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--primary-color);
    color: #fff;
    font-family: var(--font-text);
    font-weight: 600;
    font-size: var(--fs-body);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-pill);
    text-decoration: none;
    white-space: nowrap;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.blog-btn:hover,
.blog-btn:focus-visible {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.blog-btn:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.blog-btn-outline {
    background: transparent;
    color: var(--primary-color);
}

.blog-btn-outline:hover,
.blog-btn-outline:focus-visible {
    background: var(--primary-color);
    color: #fff;
}

/* ========================================
   BLOG HERO
======================================== */

.blog-hero-section {
    position: relative;
   padding: clamp(48px, 7vw, 60px) var(--gutter) clamp(40px, 6vw, 64px);
    background: linear-gradient(180deg, var(--surface-color-alt) 0%, var(--body-bg) 100%);
    overflow: hidden;
}

.blog-hero-section .blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(2px);
    opacity: .55;
    z-index: 0;
    pointer-events: none;
}

.blog-hero-section .blob-sky {
    width: clamp(160px, 20vw, 280px);
    height: clamp(160px, 20vw, 280px);
    background: var(--sky);
    top: -80px;
    right: 6%;
}

.blog-hero-section .blob-mint {
    width: clamp(120px, 14vw, 200px);
    height: clamp(120px, 14vw, 200px);
    background: var(--mint);
    bottom: -60px;
    left: 4%;
}

.blog-hero-section .blob-sun {
    width: 90px;
    height: 90px;
    background: var(--sun);
    top: 40%;
    right: 22%;
    display: none;
}

.blog-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 740px;
    margin: 0 auto;
    text-align: center;
}

.blog-hero-title {
    margin: 16px 0 14px;
    font-family: var(--font-display);
    font-size: var(--fs-h1);
    line-height: 1.08;
    font-weight: 700;
    color: var(--heading-color);
}

.blog-hero-sub {
    margin: 0 auto;
    max-width: 560px;
    font-family: var(--font-text);
    font-size: var(--fs-body);
    line-height: 1.7;
    color: var(--text-color);
}

/* ========================================
   FEATURED BLOG
======================================== */

.blog-featured {
    margin-top: clamp(28px, 4vw, 44px);
}

.blog-featured-card {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 0;
    background: var(--body-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.blog-featured-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: var(--surface-color);
}

.blog-featured-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.blog-featured-body {
    padding: clamp(24px, 3vw, 48px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 14px;
}

.blog-badge {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    padding: 6px 14px;
    background: rgba(var(--accent-rgb), .12);
    color: var(--accent-color);
    font-family: var(--font-text);
    font-size: var(--fs-micro);
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    border-radius: var(--radius-pill);
}

.blog-featured-title {
    font-family: var(--font-display);
    font-size: clamp(22px, 2.6vw, 34px);
    line-height: 1.2;
    color: var(--heading-color);
    font-weight: 700;
}

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

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

.blog-featured-desc {
    font-family: var(--font-text);
    font-size: var(--fs-body);
    color: var(--text-color);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    font-family: var(--font-text);
    font-size: var(--fs-small);
    color: var(--muted-color);
}

.blog-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.blog-meta i {
    color: var(--primary-color);
    font-size: 14px;
}

.blog-featured-body .blog-btn {
    margin-top: 6px;
    width: fit-content;
}

/* ========================================
   CATEGORY FILTER
======================================== */

.blog-filter-wrap {
    margin-top: clamp(28px, 4vw, 40px);
    position: relative;
}

.blog-filter {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding: 4px 2px 12px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.blog-filter::-webkit-scrollbar {
    display: none;
}

.blog-filter-btn {
    flex: 0 0 auto;
    padding: 10px 20px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-color);
    background: var(--body-bg);
    color: var(--text-color);
    font-family: var(--font-text);
    font-size: var(--fs-small);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.blog-filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

.blog-filter-btn:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

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

/* ========================================
   BLOG GRID
======================================== */

.blog-listing-section {
    padding: var(--section-padding-y) 0;
}

.blog-listing-head {
    max-width: 620px;
    margin: 0 0 clamp(28px, 4vw, 40px);
}

.blog-listing-title {
    margin: 10px 0 12px;
    font-family: var(--font-display);
    font-size: var(--fs-h2);
    font-weight: 700;
    color: var(--heading-color);
}

.blog-listing-sub {
    font-family: var(--font-text);
    font-size: var(--fs-body);
    color: var(--text-color);
    line-height: 1.7;
    margin: 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--card-gap);
    margin-top: clamp(24px, 3vw, 32px);
}

.blog-grid-related {
    margin-top: clamp(20px, 3vw, 28px);
}

/* ========================================
   BLOG CARD
======================================== */

.blog-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--body-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition),
                box-shadow var(--transition),
                border-color var(--transition);
}

.blog-card:hover,
.blog-card:focus-within {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(var(--primary-rgb), .3);
}

.blog-card-img {
    display: block;
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--surface-color);
}

.blog-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card-img img {
    transform: scale(1.08);
}

.blog-card-img::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(1, 12, 40, 0) 55%, rgba(1, 12, 40, .45) 100%);
    opacity: 0;
    transition: opacity var(--transition);
}

.blog-card:hover .blog-card-img::after {
    opacity: 1;
}

.blog-card-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 5px 12px;
    background: rgba(1, 12, 40, .55);
    backdrop-filter: blur(4px);
    color: #fff;
    font-family: var(--font-text);
    font-size: var(--fs-micro);
    font-weight: 700;
    letter-spacing: .07em;
    text-transform: uppercase;
    border-radius: var(--radius-pill);
}

.blog-card-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 20px clamp(16px, 2vw, 22px) 22px;
    gap: 8px;
}

.blog-card-cat {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: rgba(var(--primary-rgb), .08);
    color: var(--primary-color);
    font-family: var(--font-text);
    font-size: var(--fs-micro);
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    margin-bottom: 2px;
}

.blog-card-date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-text);
    font-size: var(--fs-small);
    color: var(--muted-color);
}

.blog-card-title {
    margin: 2px 0 0;
    font-family: var(--font-display);
    font-size: var(--fs-card-title);
    line-height: 1.3;
    font-weight: 700;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-title a {
    color: var(--heading-color);
    text-decoration: none;
    transition: color var(--transition);
}

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

.blog-card-desc {
    font-family: var(--font-text);
    font-size: var(--fs-small);
    color: var(--text-color);
    line-height: 1.65;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-foot {
    margin-top: auto;
    padding-top: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-family: var(--font-text);
    font-size: var(--fs-small);
    color: var(--muted-color);
    border-top: 1px solid var(--border-color);
}

.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-color);
    font-weight: 700;
    text-decoration: none;
    font-size: var(--fs-small);
    margin-top: 14px;
    transition: gap var(--transition);
}

.blog-card-link i {
    transition: transform var(--transition);
}

.blog-card-link:hover {
    color: var(--secondary-color);
}

.blog-card-link:hover i {
    transform: translateX(4px);
}

.blog-empty {
    text-align: center;
    padding: 80px 20px;
    color: var(--muted-color);
    font-family: var(--font-text);
}

.blog-empty i {
    font-size: 42px;
    color: var(--primary-color);
    margin-bottom: 14px;
    display: block;
}

.blog-empty h3 {
    font-family: var(--font-display);
    color: var(--heading-color);
    margin-bottom: 6px;
}

/* ========================================
   PAGINATION
======================================== */

.blog-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: clamp(36px, 5vw, 56px);
    flex-wrap: wrap;
}

.blog-page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 42px;
    padding: 0 6px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-color);
    background: var(--body-bg);
    color: var(--text-color);
    font-family: var(--font-text);
    font-weight: 600;
    font-size: var(--fs-small);
    text-decoration: none;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.blog-page-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.blog-load-more {
    display: flex;
    justify-content: center;
    margin-top: clamp(32px, 4vw, 48px);
}

/* ========================================
   BLOG DETAILS
======================================== */

.blog-hero {
    position: relative;
    padding: clamp(140px, 18vw, 220px) 0 clamp(56px, 7vw, 84px);
    background: linear-gradient(180deg, var(--deep-color) 0%, var(--secondary-color) 60%, var(--primary-color-dark) 100%);
    overflow: hidden;
}

.blog-hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(60% 60% at 100% 0%, rgba(var(--primary-rgb), .35), transparent 70%);
    pointer-events: none;
}

.blog-hero-content {
    position: relative;
    z-index: 1;
    max-width: 820px;
}

.blog-hero-content .blog-badge {
    margin-bottom: 14px;
    background: rgba(255, 255, 255, .14);
    color: var(--sun);
}

.blog-hero-title {
    margin: 14px 0 18px;
    color: #fff;
    font-size: clamp(28px, 4.4vw, 46px);
    line-height: 1.2;
}

.blog-hero-excerpt {
    max-width: 640px;
    color: var(--on-dark-color);
    font-family: var(--font-text);
    font-size: var(--fs-body);
    line-height: 1.7;
    margin-bottom: 18px;
}

.blog-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-family: var(--font-text);
    font-size: var(--fs-small);
    color: var(--on-dark-muted);
}

.blog-hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.blog-hero-meta i {
    color: var(--sun);
}

/* ---- Detail grid layout ---- */

.blog-detail-section {
    padding: clamp(40px, 6vw, 72px) 0 var(--section-padding-y);
}

.blog-detail-grid {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr) 320px;
    gap: clamp(20px, 3vw, 40px);
    align-items: start;
}

/* Share rail (desktop, sticky) */

.blog-share-rail {
    position: sticky;
    top: 110px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding-top: 4px;
}

.blog-share-label {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-family: var(--font-text);
    font-size: var(--fs-micro);
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--muted-color);
    margin-bottom: 4px;
}

.blog-share-btn {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--body-bg);
    color: var(--tertiary-color);
    cursor: pointer;
    text-decoration: none;
    font-size: 16px;
    transition: all var(--transition);
    position: relative;
}

.blog-share-btn:hover,
.blog-share-btn:focus-visible {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
    color: #fff;
    border-color: transparent;
}

.share-whatsapp:hover { background: #25D366; }
.share-facebook:hover { background: #1877F2; }
.share-x:hover { background: var(--dark-color); }
.share-linkedin:hover { background: #0A66C2; }
.share-telegram:hover { background: #26A5E4; }
.share-copy:hover { background: var(--primary-color); }
.share-copy.copied { background: var(--success-color); color: #fff; border-color: transparent; }

.blog-share-tooltip {
    position: absolute;
    left: 52px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--secondary-color);
    color: #fff;
    font-size: var(--fs-micro);
    font-family: var(--font-text);
    font-weight: 600;
    padding: 5px 10px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.blog-share-btn:hover .blog-share-tooltip {
    opacity: 1;
}

/* Mobile share bar */
.blog-share-mobile {
    display: none;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    margin: 16px 0 22px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

.blog-share-mobile span {
    font-family: var(--font-text);
    font-size: var(--fs-small);
    font-weight: 700;
    color: var(--heading-color);
    flex: 0 0 auto;
}

.blog-share-mobile a,
.blog-share-mobile button {
    flex: 0 0 auto;
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--body-bg);
    color: var(--tertiary-color);
    text-decoration: none;
    cursor: pointer;
    position: relative;
}

.blog-share-mobile button.copied {
    background: var(--success-color);
    color: #fff;
    border-color: transparent;
}

/* Main article content */

.blog-detail-content {
    min-width: 0;
}

.blog-detail-cover {
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16 / 8;
    box-shadow: var(--shadow-md);
    margin-bottom: 8px;
}

.blog-detail-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Content + TOC two-column layout on desktop */
.blog-content-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: clamp(24px, 3vw, 48px);
    align-items: start;
    margin-top: clamp(24px, 3vw, 32px);
}

.blog-content-body {
    max-width: 720px;
    font-family: var(--font-text);
    color: var(--text-color);
    font-size: var(--fs-body);
    line-height: 1.9;
    margin-top: clamp(22px, 3vw, 30px);
}

.blog-content-body > p:first-of-type {
    font-size: clamp(16px, 1.6vw, 18.5px);
    color: var(--heading-color);
    font-weight: 500;
    line-height: 1.75;
}

.blog-content-body h2 {
    position: relative;
    font-family: var(--font-display);
    color: var(--heading-color);
    font-size: clamp(21px, 2.2vw, 28px);
    font-weight: 700;
    margin: 44px 0 18px;
    padding-left: 16px;
    scroll-margin-top: 120px;
}

.blog-content-body h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    border-radius: var(--radius-pill);
    background: var(--accent-color);
}

.blog-content-body h3 {
    font-family: var(--font-display);
    color: var(--heading-color);
    font-size: clamp(18px, 1.8vw, 22px);
    font-weight: 700;
    margin: 32px 0 14px;
    scroll-margin-top: 120px;
}

.blog-content-body p {
    margin: 0 0 22px;
}

.blog-content-body ul,
.blog-content-body ol {
    margin: 0 0 22px;
    padding-left: 4px;
    list-style: none;
}

.blog-content-body ol {
    list-style: decimal;
    padding-left: 22px;
}

.blog-content-body ul li {
    position: relative;
    padding-left: 26px;
    margin-bottom: 12px;
}

.blog-content-body ul li::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 10px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-color);
}

.blog-content-body ol li {
    margin-bottom: 12px;
    padding-left: 4px;
}

.blog-content-body a {
    color: var(--primary-color);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition);
}

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

.blog-content-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: 28px 0;
    box-shadow: var(--shadow-sm);
}

.blog-content-body figure {
    margin: 28px 0;
}

.blog-content-body figcaption {
    margin-top: 8px;
    font-size: var(--fs-small);
    color: var(--muted-color);
    text-align: center;
}

.blog-content-body blockquote {
    position: relative;
    margin: 32px 0;
    padding: 22px 24px 22px 52px;
    border-left: 4px solid var(--accent-color);
    background: var(--cream-color);
    border-radius: var(--radius-sm);
    font-style: italic;
    color: var(--secondary-color);
}

.blog-content-body blockquote::before {
    content: "\201C";
    position: absolute;
    left: 16px;
    top: 6px;
    font-family: var(--font-display);
    font-style: normal;
    font-size: 34px;
    line-height: 1;
    color: var(--accent-color);
    opacity: .8;
}

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

.blog-content-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 26px 0;
    font-size: var(--fs-small);
    display: block;
    overflow-x: auto;
    border-radius: var(--radius-sm);
}

.blog-content-body th,
.blog-content-body td {
    padding: 11px 15px;
    border: 1px solid var(--border-color);
    text-align: left;
}

.blog-content-body th {
    background: var(--surface-color);
    color: var(--heading-color);
    font-family: var(--font-text);
    font-weight: 700;
}

.blog-content-body tr:nth-child(even) td {
    background: var(--surface-color);
}

.blog-content-body code {
    background: var(--surface-color-alt);
    color: var(--secondary-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: .9em;
}

.blog-content-body pre {
    background: var(--deep-color);
    color: #e8edf5;
    padding: 18px 20px;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 26px 0;
}

.blog-content-body pre code {
    background: none;
    color: inherit;
    padding: 0;
}

/* ========================================
   TABLE OF CONTENTS
======================================== */

.blog-toc {
    position: sticky;
    top: 110px;
    align-self: start;
}

.blog-toc-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 18px 18px 16px;
}

.blog-toc-title {
    font-family: var(--font-text);
    font-size: var(--fs-micro);
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--muted-color);
    margin: 0 0 12px;
}

.blog-toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-height: 320px;
    overflow-y: auto;
}

.blog-toc-list a {
    display: block;
    padding: 7px 0 7px 12px;
    border-left: 2px solid var(--border-color);
    color: var(--text-color);
    font-size: var(--fs-small);
    text-decoration: none;
    line-height: 1.4;
    transition: border-color var(--transition), color var(--transition);
}

.blog-toc-list a.toc-h3 {
    padding-left: 24px;
    font-size: 12.5px;
}

.blog-toc-list a:hover {
    color: var(--primary-color);
}

.blog-toc-list a.active {
    border-left-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 700;
}

/* Mobile TOC accordion */
.blog-toc-mobile {
    display: none;
    margin: 20px 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.blog-toc-mobile-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--surface-color);
    border: none;
    font-family: var(--font-text);
    font-weight: 700;
    font-size: var(--fs-small);
    color: var(--heading-color);
    cursor: pointer;
}

.blog-toc-mobile-toggle i {
    transition: transform var(--transition);
}

.blog-toc-mobile.open .blog-toc-mobile-toggle i {
    transform: rotate(180deg);
}

.blog-toc-mobile-panel {
    display: none;
    padding: 6px 16px 14px;
}

.blog-toc-mobile.open .blog-toc-mobile-panel {
    display: block;
}

.blog-toc-mobile .blog-toc-list {
    max-height: none;
}

/* ---- FAQ ---- */

.blog-faq {
    max-width: 760px;
    margin: 48px 0 0;
}

.blog-faq-title {
    font-family: var(--font-display);
    color: var(--heading-color);
    font-size: clamp(21px, 2.2vw, 26px);
    margin-bottom: 18px;
}

.blog-faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    overflow: hidden;
}

.blog-faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 18px;
    background: var(--body-bg);
    border: none;
    text-align: left;
    font-family: var(--font-text);
    font-weight: 700;
    font-size: var(--fs-body);
    color: var(--heading-color);
    cursor: pointer;
}

.blog-faq-question i {
    flex: 0 0 auto;
    color: var(--primary-color);
    transition: transform var(--transition);
}

.blog-faq-question[aria-expanded="true"] i {
    transform: rotate(45deg);
}

.blog-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    background: var(--surface-color);
}

.blog-faq-answer p {
    margin: 0;
    padding: 0 18px 16px;
    color: var(--text-color);
    font-family: var(--font-text);
    font-size: var(--fs-small);
    line-height: 1.7;
}

.blog-faq-item.open .blog-faq-answer {
    max-height: 400px;
}

/* ---- Inline CTA ---- */

.blog-cta-inline {
    max-width: 760px;
    margin: 48px 0 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    padding: 26px 30px;
    background: var(--primary-color-dark);
    border-radius: var(--radius-lg);
}

.blog-cta-text h3 {
    color: #fff;
    font-family: var(--font-display);
    font-size: clamp(18px, 2vw, 22px);
    margin: 0 0 6px;
}

.blog-cta-text p {
    color: var(--on-dark-muted);
    font-family: var(--font-text);
    font-size: var(--fs-small);
    margin: 0;
}

.blog-cta-inline .blog-btn {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--deep-color);
}

.blog-cta-inline .blog-btn:hover {
    background: #fff;
    border-color: #fff;
}

/* ========================================
   AUTHOR
======================================== */

.blog-author-card {
    max-width: 760px;
    margin: 44px 0 0;
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 22px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.blog-author-avatar {
    flex: 0 0 auto;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--primary-color);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    overflow: hidden;
}

.blog-author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-author-info h4 {
    font-family: var(--font-display);
    color: var(--heading-color);
    font-size: 17px;
    margin: 0 0 4px;
}

.blog-author-info p {
    font-family: var(--font-text);
    color: var(--text-color);
    font-size: var(--fs-small);
    margin: 0 0 8px;
    line-height: 1.6;
}

.blog-author-social {
    display: flex;
    gap: 8px;
}

.blog-author-social a {
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--body-bg);
    border: 1px solid var(--border-color);
    color: var(--tertiary-color);
    font-size: 13px;
    text-decoration: none;
    transition: all var(--transition);
}

.blog-author-social a:hover {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* ========================================
   PREVIOUS / NEXT
======================================== */

.blog-prevnext {
    max-width: 760px;
    margin: 40px 0 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.blog-nav-link {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 18px 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    min-width: 0;
}

.blog-nav-link:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.blog-nav-link.next {
    text-align: right;
    align-items: flex-end;
}

.blog-nav-direction {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-text);
    font-size: var(--fs-micro);
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--primary-color);
}

.blog-nav-title {
    font-family: var(--font-display);
    color: var(--heading-color);
    font-size: 15px;
    font-weight: 700;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* ========================================
   RECENT POSTS SIDEBAR
======================================== */

.blog-recent-sidebar {
    min-width: 0;
    height:100%;
}

.blog-recent-card {
    position: sticky;
    top: 110px;
    background: var(--body-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 22px 20px 8px;
}

.blog-recent-head {
    margin-bottom: 16px;
}

.blog-recent-title {
    position: relative;
    display: inline-block;
    font-family: var(--font-text);
    font-size: var(--fs-small);
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--heading-color);
    padding-bottom: 12px;
}

.blog-recent-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 3px;
    border-radius: var(--radius-pill);
    background: var(--accent-color);
}

.blog-recent-list {
    display: flex;
    flex-direction: column;
}

.blog-recent-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 0;
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
}

.blog-recent-item:last-child {
    border-bottom: none;
}

.blog-recent-thumb {
    flex: 0 0 auto;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--surface-color);
}

.blog-recent-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-recent-item:hover .blog-recent-thumb img {
    transform: scale(1.1);
}

.blog-recent-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.blog-recent-heading {
    font-family: var(--font-display);
    font-size: 14.5px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--heading-color);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}

.blog-recent-item:hover .blog-recent-heading {
    color: var(--primary-color);
}

.blog-recent-date {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-family: var(--font-text);
    font-size: 11.5px;
    color: var(--muted-color);
}

.blog-recent-date i {
    color: var(--primary-color);
    font-size: 11px;
}

/* ========================================
   RELATED BLOGS
======================================== */

.blog-related {
    margin-top: clamp(56px, 7vw, 88px);
    text-align: center;
}

.blog-related .blog-eyebrow {
    justify-content: center;
}

.blog-related-title {
    font-family: var(--font-display);
    color: var(--heading-color);
    font-size: var(--fs-h2);
    font-weight: 700;
    margin: 10px 0 clamp(24px, 3vw, 34px);
}

/* ========================================
   FINAL SHARE CTA
======================================== */

.blog-final-share {
    max-width: 760px;
    margin: clamp(48px, 6vw, 72px) auto 0;
    text-align: center;
    padding: clamp(30px, 4vw, 44px);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

.blog-final-share h3 {
    font-family: var(--font-display);
    color: var(--heading-color);
    font-size: clamp(19px, 2.2vw, 24px);
    margin: 0 0 8px;
}

.blog-final-share p {
    font-family: var(--font-text);
    color: var(--text-color);
    font-size: var(--fs-small);
    margin: 0 0 20px;
}

.blog-final-share .blog-share-mobile {
    display: flex;
    justify-content: center;
    margin: 0 auto;
    width: fit-content;
    max-width: 100%;
    background: var(--body-bg);
}

.blog-final-share .blog-share-mobile span {
    display: none;
}

/* ========================================
   404
======================================== */

.blog-404 {
    padding: clamp(100px, 14vw, 160px) 0;
    text-align: center;
}

.blog-404 h1 {
    font-family: var(--font-display);
    font-size: clamp(48px, 8vw, 96px);
    color: var(--primary-color);
    margin-bottom: 8px;
}

.blog-404 p {
    font-family: var(--font-text);
    color: var(--text-color);
    margin-bottom: 24px;
}

/* ========================================
   RESPONSIVE
======================================== */

@media (min-width: 1400px) {
    .blog-detail-grid { grid-template-columns: 64px minmax(0, 1fr) 340px; }
}

@media (max-width: 1200px) {
    .blog-content-wrap {
        grid-template-columns: minmax(0, 1fr) 230px;
    }
    .blog-detail-grid { grid-template-columns: 64px minmax(0, 1fr) 290px; }
}

@media (max-width: 992px) {
    .blog-grid { grid-template-columns: repeat(2, 1fr); }

    .blog-featured-card { grid-template-columns: 1fr;}
    .blog-featured-img { aspect-ratio: 16 / 9; }

    .blog-content-wrap { grid-template-columns: 1fr;}
    .blog-toc { display: none; }
    .blog-toc-mobile { display: block; }

    .blog-detail-grid { grid-template-columns: 1fr; }
    .blog-share-rail { display: none; }
    .blog-share-mobile { display: flex; }

    .blog-recent-sidebar { order: 3; }
    .blog-recent-card { position: static; max-width: 520px; margin: 8px auto 0; }
}

@media (max-width: 768px) {
    .blog-grid { grid-template-columns: 1fr; }
    .blog-grid-related { grid-template-columns: 1fr; }

    .blog-hero-section .blob-mint,
    .blog-hero-section .blob-sky { opacity: .35; }

    .blog-prevnext { grid-template-columns: 1fr; }
    .blog-nav-link.next { text-align: left; align-items: flex-start; }

    .blog-cta-inline { flex-direction: column; align-items: flex-start; text-align: left; }
    .blog-cta-inline .blog-btn { width: 100%; justify-content: center; }

    .blog-author-card { flex-direction: column; text-align: center; }
    .blog-author-social { justify-content: center; }
}

@media (max-width: 576px) {
    .blog-hero { padding-top: clamp(120px, 22vw, 160px); }
    .blog-hero-meta { gap: 12px; row-gap: 8px; }
    .blog-detail-cover { aspect-ratio: 4 / 3; border-radius: var(--radius-md); }
    .blog-featured-body { padding: 20px; }
    .blog-final-share .blog-share-mobile { flex-wrap: wrap; }
}

@media (max-width: 425px) {
    .blog-card-body { padding: 16px; }
    .blog-hero-title { font-size: clamp(26px, 7vw, 32px); }
}

@media (max-width: 375px) {
    .blog-cta-inline,
    .blog-author-card,
    .blog-final-share { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
    }
}