/* ================================
   Blog - Archive & Single Post
   ================================ */

/* ---- Hero ---- */
.blog-hero {
    background: var(--color-primary);
    padding: calc(81px + var(--spacing-5xl)) var(--spacing-2xl) var(--spacing-5xl);
    text-align: center;
}

.blog-hero__container {
    max-width: 720px;
    margin: 0 auto;
}

.blog-hero__title {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-5xl);
    line-height: 56px;
    color: var(--color-white);
}

.blog-hero__subtitle {
    margin-top: var(--spacing-lg);
    font-size: var(--font-size-lg);
    line-height: 28px;
    color: rgba(255, 255, 255, 0.9);
}

/* ---- Tags filter ---- */
.blog-tags {
    padding: var(--spacing-2xl) var(--spacing-2xl);
    border-bottom: 1px solid var(--color-border-light);
}

.blog-tags__container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    max-width: 1024px;
    margin: 0 auto;
}

.blog-tags__tag {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 20px;
    color: var(--color-text-light);
    background: var(--color-background-light);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.blog-tags__tag:hover {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.blog-tags__tag--active {
    color: var(--color-white);
    background: var(--color-primary);
}

/* ---- Grid ---- */
.blog-grid {
    padding: var(--spacing-5xl) var(--spacing-2xl);
}

.blog-grid__container {
    max-width: 1280px;
    margin: 0 auto;
}

.blog-grid__list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

.blog-grid__empty {
    text-align: center;
    padding: var(--spacing-5xl) 0;
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
}

/* ---- Blog Card ---- */
.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.blog-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.blog-card__image-link {
    display: block;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.blog-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.blog-card:hover .blog-card__image {
    transform: scale(1.03);
}

.blog-card__content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-xl);
    flex: 1;
}

.blog-card__tags {
    display: flex;
    gap: var(--spacing-sm);
}

.blog-card__tag {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.blog-card__title {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-xl);
    line-height: 28px;
    color: var(--color-text);
}

.blog-card__title a {
    color: inherit;
}

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

.blog-card__excerpt {
    font-size: var(--font-size-base);
    line-height: 24px;
    color: var(--color-text-light);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card__meta {
    margin-top: auto;
    padding-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ---- Pagination ---- */
.blog-pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-3xl);
}

.blog-pagination a,
.blog-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition-fast);
}

.blog-pagination a:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.blog-pagination .current {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

/* ================================
   Single Post
   ================================ */

.post-single__header {
    background: var(--color-primary);
    padding: calc(81px + var(--spacing-5xl)) var(--spacing-2xl) var(--spacing-5xl);
    text-align: center;
}

.post-single__header-container {
    max-width: 800px;
    margin: 0 auto;
}

.post-single__tags {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.post-single__tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
}

.post-single__tag:hover {
    background: rgba(255, 255, 255, 0.25);
    color: var(--color-white);
}

.post-single__title {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-5xl);
    line-height: 56px;
    color: var(--color-white);
}

.post-single__meta {
    display: flex;
    gap: var(--spacing-2xl);
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.8);
}

.post-single__author {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: left;
}

.post-single__author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.25);
}

.post-single__author-info {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.post-single__author-name {
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
}

.post-single__author-role {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.75);
}

.post-single__meta-dates {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
}

.post-single__reading-time::before {
    content: "·";
    margin-right: var(--spacing-md);
    opacity: 0.7;
}

/* ---- Featured image ---- */
.post-single__featured {
    max-width: 960px;
    margin: calc(-1 * var(--spacing-3xl)) auto var(--spacing-3xl);
    padding: 0 var(--spacing-2xl);
}

.post-single__featured-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

/* ---- Content ---- */
.post-single__body {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 var(--spacing-2xl) var(--spacing-5xl);
}

.post-single__content {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--color-text);
}

.post-single__content h2 {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-3xl);
    line-height: 38px;
    margin: var(--spacing-3xl) 0 var(--spacing-lg);
    color: var(--color-text);
}

.post-single__content h3 {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-2xl);
    line-height: 32px;
    margin: var(--spacing-2xl) 0 var(--spacing-md);
    color: var(--color-text);
}

.post-single__content p {
    margin-bottom: var(--spacing-xl);
}

.post-single__content ul,
.post-single__content ol {
    margin: 0 0 var(--spacing-xl) var(--spacing-xl);
    padding-left: var(--spacing-lg);
}

.post-single__content li {
    margin-bottom: var(--spacing-sm);
}

.post-single__content blockquote {
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-xl) var(--spacing-2xl);
    border-left: 4px solid var(--color-primary);
    background: var(--color-primary-surface);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--color-text-light);
}

.post-single__content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
}

.post-single__content a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.post-single__content a:hover {
    color: var(--color-primary-hover);
}

/* ---- Footer tags ---- */
.post-single__footer {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-border-light);
}

.post-single__footer-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.post-single__footer-tag {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
}

.post-single__footer-tag:hover {
    color: var(--color-primary-hover);
}

/* ---- Related posts ---- */
.post-related {
    background: var(--color-background-light);
    padding: var(--spacing-5xl) var(--spacing-2xl);
}

.post-related__container {
    max-width: 1280px;
    margin: 0 auto;
}

.post-related__title {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-3xl);
    line-height: 38px;
    color: var(--color-text);
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.post-related__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

/* ================================
   Post Flexible Content Blocks
   ================================ */

/* Narrow blocks (text, heading) — centered column matching article body */
.post-fc--heading,
.post-fc--text {
    max-width: 720px;
    margin-inline: auto;
    padding-inline: var(--spacing-2xl);
    margin-block: var(--spacing-2xl);
}

/* Image / video — slightly wider than text */
.post-fc--image,
.post-fc--video {
    max-width: 960px;
    margin-inline: auto;
    padding-inline: var(--spacing-2xl);
    margin-block: var(--spacing-3xl);
}

/* Courses block — full bleed */
.post-fc--courses {
    margin-block: var(--spacing-3xl);
    padding-inline: 0;
}

.post-fc__heading {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin: var(--spacing-2xl) 0 var(--spacing-md);
}

.post-fc__heading--h2 {
    font-size: var(--font-size-3xl);
    line-height: 38px;
}

.post-fc__heading--h3 {
    font-size: var(--font-size-2xl);
    line-height: 32px;
}

.post-fc__heading--h4 {
    font-size: var(--font-size-xl);
    line-height: 28px;
}

.post-fc__text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--color-text);
}

.post-fc__image-wrapper {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.post-fc__image {
    width: 100%;
    height: auto;
    display: block;
}

.post-fc__caption {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-align: center;
    font-style: italic;
}

.post-fc__video {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: #000;
    box-shadow: var(--shadow-md);
}

.post-fc__video-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}

.post-fc__video-embed iframe,
.post-fc__video-embed video,
.post-fc__video-embed object,
.post-fc__video-embed embed {
    position: absolute !important;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    border: 0;
}

.post-fc__video-player {
    width: 100%;
    height: auto;
    display: block;
}

/* ================================
   Post Courses (carousel or grid inside single post)
   ================================ */

.post-courses,
.post-related-courses {
    padding: var(--spacing-4xl) var(--spacing-2xl);
    background: var(--color-background-light);
}

.post-courses__container {
    max-width: 1280px;
    margin: 0 auto;
}

.post-courses__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.post-courses__title {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-3xl);
    line-height: 38px;
    color: var(--color-text);
    margin: 0;
}

.post-courses__nav {
    display: inline-flex;
    gap: var(--spacing-sm);
}

.post-courses__nav-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--color-border-light);
    background: var(--color-white);
    color: var(--color-text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.post-courses__nav-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.post-courses__nav-btn[disabled],
.post-courses__nav-btn.swiper-button-disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.post-courses__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

.post-courses__carousel .swiper-wrapper {
    align-items: stretch;
}

.post-courses__slide {
    height: auto;
    display: flex;
}

.post-courses__slide .course-slide {
    width: 100%;
}

/* ---- Course slide (flat card) ---- */
.course-slide {
    display: flex;
    flex-direction: column;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    overflow: hidden;
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
    height: 100%;
    color: inherit;
    text-decoration: none;
}

.course-slide:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    color: inherit;
}

.course-slide__image-wrapper {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--color-background-light);
}

.course-slide__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.course-slide:hover .course-slide__image {
    transform: scale(1.03);
}

.course-slide__placeholder {
    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
    background: var(--color-primary-surface);
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-xl);
}

.course-slide__badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: 4px 10px;
    font-size: 11px;
    letter-spacing: 0.05em;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    border-radius: var(--radius-full);
    background: var(--color-white);
    color: var(--color-text);
}

.course-slide__badge--new     { background: var(--color-primary); color: var(--color-white); }
.course-slide__badge--few     { background: #f59e0b; color: var(--color-white); }
.course-slide__badge--cert    { background: #10b981; color: var(--color-white); }
.course-slide__badge--soon    { background: #6b7280; color: var(--color-white); }
.course-slide__badge--demand  { background: #ef4444; color: var(--color-white); }
.course-slide__badge--full    { background: #1f2937; color: var(--color-white); }

.course-slide__body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-xl);
    flex: 1;
}

.course-slide__mode {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.course-slide__title {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
    line-height: 1.3;
    color: var(--color-text);
    margin: 0;
}

.course-slide__description {
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--color-text-light);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}

.course-slide__info {
    list-style: none;
    margin: var(--spacing-sm) 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.course-slide__info-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.course-slide__info-item svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.course-slide__cta {
    margin-top: auto;
    padding-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.course-slide:hover .course-slide__cta .button__arrow {
    transform: translateX(4px);
}

.course-slide__cta .button__arrow {
    transition: transform var(--transition-fast);
}

/* ================================
   Blog Carousel (home apartat)
   ================================ */

.blog-carousel {
    padding: var(--spacing-5xl) var(--spacing-2xl);
    background: var(--color-white);
}

.blog-carousel__container {
    max-width: 1280px;
    margin: 0 auto;
}

.blog-carousel__header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
    flex-wrap: wrap;
}

.blog-carousel__heading {
    max-width: 720px;
}

.blog-carousel__title {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-4xl);
    line-height: 1.15;
    color: var(--color-text);
    margin: 0;
}

.blog-carousel__subtitle {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-lg);
    line-height: 1.5;
    color: var(--color-text-light);
}

.blog-carousel__nav {
    display: inline-flex;
    gap: var(--spacing-sm);
}

.blog-carousel__nav-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--color-border-light);
    background: var(--color-white);
    color: var(--color-text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.blog-carousel__nav-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.blog-carousel__nav-btn.swiper-button-disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.blog-carousel__swiper .swiper-wrapper {
    align-items: stretch;
}

.blog-carousel__slide {
    height: auto;
    display: flex;
}

.blog-carousel__slide .blog-card {
    width: 100%;
}

.blog-carousel__footer {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-3xl);
}

/* Make blog-card image-link support placeholder */
.blog-card__image-link--placeholder {
    display: grid;
    place-items: center;
    background: var(--color-primary-surface);
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-2xl);
}

/* ================================
   Responsive
   ================================ */

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

    .post-related__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .post-courses__grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .blog-hero {
        padding-top: calc(72px + var(--spacing-3xl));
        padding-bottom: var(--spacing-3xl);
    }

    .blog-hero__title {
        font-size: var(--font-size-4xl);
        line-height: 40px;
    }

    .blog-grid {
        padding: var(--spacing-3xl) var(--spacing-lg);
    }

    .blog-grid__list {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .post-single__header {
        padding-top: calc(72px + var(--spacing-3xl));
        padding-bottom: var(--spacing-3xl);
    }

    .post-single__title {
        font-size: var(--font-size-3xl);
        line-height: 38px;
    }

    .post-single__meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .post-single__reading-time::before {
        display: none;
    }

    .post-single__body {
        padding: 0 var(--spacing-lg) var(--spacing-3xl);
    }

    .post-single__content {
        font-size: var(--font-size-base);
    }

    .post-related__grid {
        grid-template-columns: 1fr;
    }

    .post-courses,
    .post-related-courses {
        padding: var(--spacing-3xl) var(--spacing-lg);
    }

    .post-courses__header {
        justify-content: flex-start;
    }

    .post-courses__title {
        font-size: var(--font-size-2xl);
        line-height: 32px;
    }

    .post-courses__grid {
        grid-template-columns: 1fr;
    }

    .post-fc--heading,
    .post-fc--text,
    .post-fc--image,
    .post-fc--video {
        padding-inline: var(--spacing-lg);
        margin-block: var(--spacing-xl);
    }

    .blog-carousel {
        padding: var(--spacing-3xl) var(--spacing-lg);
    }

    .blog-carousel__header {
        align-items: flex-start;
    }

    .blog-carousel__title {
        font-size: var(--font-size-2xl);
        line-height: 32px;
    }

    .post-single__meta {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .blog-hero__title {
        font-size: var(--font-size-3xl);
        line-height: 36px;
    }

    .post-single__title {
        font-size: var(--font-size-2xl);
        line-height: 32px;
    }

    .blog-tags__container {
        justify-content: flex-start;
    }
}