/* ==========================================================================
   Blog Archive — hero, category filter, featured post, card grid, newsletter.
   Loaded conditionally on blog/archive pages only.
   ========================================================================== */

/* Remove default site-main padding so hero is flush */
.blog .site-main,
.archive .site-main,
.search .site-main {
    padding-top: 0;
    padding-bottom: 0;
}

/* --- Blog Hero --- */
.blog-hero {
    position: relative;
    background: linear-gradient(to bottom right, #0f172a, #1e3a8a, #111827);
    padding: var(--space-3xl) 0 var(--space-4xl);
    overflow: hidden;
    text-align: center;
}

.blog-hero__pattern {
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image: radial-gradient(circle at 2px 2px, white 1px, transparent 0);
    background-size: 40px 40px;
    pointer-events: none;
}

.blog-hero__content {
    position: relative;
    z-index: 1;
    max-width: 56rem;
    margin-inline: auto;
}

.blog-hero__title {
    font-size: clamp(1.875rem, 4vw, 3rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.025em;
    margin-bottom: var(--space-md);
}

.blog-hero__subtitle {
    color: rgba(219, 234, 254, 0.9);
    font-size: clamp(0.938rem, 1.5vw, 1.125rem);
    font-weight: 300;
    max-width: 42rem;
    margin-inline: auto;
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
}

/* --- Blog Search Bar --- */
.blog-search {
    max-width: 42rem;
    margin-inline: auto;
}

.blog-search__form {
    position: relative;
    display: flex;
    align-items: center;
}

.blog-search__icon {
    position: absolute;
    left: 1rem;
    font-size: 20px;
    color: var(--color-text-disabled);
    pointer-events: none;
    z-index: 1;
}

.blog-search__input {
    width: 100%;
    padding: 1rem 8.5rem 1rem 2.75rem;
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: #fff;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    outline: none;
    transition: box-shadow var(--transition-fast);
}

.blog-search__input:focus {
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25), 0 0 0 2px var(--color-primary);
}

.blog-search__btn {
    position: absolute;
    right: 6px;
    top: 6px;
    bottom: 6px;
    padding: 0 1.5rem;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    box-shadow: none;
}

.blog-search__btn:hover {
    background: var(--color-primary-dark);
    box-shadow: none;
}

/* --- Sticky Categories Filter --- */
.blog-cats {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-outline-variant);
    position: sticky;
    top: var(--header-height);
    z-index: 40;
}

.blog-cats__list {
    display: flex;
    gap: 0.5rem;
    padding: var(--space-md) 0;
    overflow-x: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

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

.blog-cats__pill {
    flex-shrink: 0;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    white-space: nowrap;
    transition: all var(--transition-fast);
    background: var(--color-surface-container);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-outline-variant);
}

.blog-cats__pill:hover {
    background: var(--color-surface-container-high);
    color: var(--color-text);
}

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

.blog-cats__pill--active:hover {
    background: var(--color-primary-dark);
    color: #fff;
}

/* --- Blog Listing Section --- */
.blog-listing {
    padding: var(--space-2xl) 0;
    background: var(--color-surface-container);
}

.blog-listing__heading {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-listing__heading-icon {
    font-size: 24px;
}

/* --- Featured Post Card --- */
.blog-featured {
    margin-bottom: var(--space-3xl);
}

.blog-featured__card {
    display: flex;
    flex-direction: column;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-outline-variant);
    box-shadow: 0 4px 20px -4px rgba(0, 0, 0, 0.05);
    transition: box-shadow var(--transition-base);
    color: inherit;
}

.blog-featured__card:hover {
    box-shadow: 0 8px 30px -4px rgba(0, 0, 0, 0.1);
    color: inherit;
}

.blog-featured__image {
    position: relative;
    width: 100%;
    min-height: 250px;
    overflow: hidden;
    background: var(--color-surface-dim);
}

.blog-featured__thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.blog-featured__card:hover .blog-featured__thumb {
    transform: scale(1.05);
}

.blog-featured__placeholder {
    width: 100%;
    height: 100%;
    min-height: 250px;
    background: linear-gradient(135deg, var(--color-surface-dim), var(--color-surface-container-high));
}

.blog-featured__badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--color-primary);
    color: #fff;
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.blog-featured__body {
    padding: var(--space-lg) var(--space-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-featured__meta {
    display: flex;
    gap: var(--space-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

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

.blog-featured__meta .material-symbols-outlined {
    font-size: 16px;
}

.blog-featured__title {
    font-size: clamp(1.5rem, 2.5vw, 1.875rem);
    font-weight: 700;
    color: var(--color-secondary);
    line-height: 1.3;
    margin-bottom: var(--space-md);
    transition: color var(--transition-fast);
}

.blog-featured__card:hover .blog-featured__title {
    color: var(--color-primary);
}

.blog-featured__excerpt {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-featured__author {
    display: flex;
    align-items: center;
    margin-top: auto;
}

.blog-featured__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin-right: 0.75rem;
    border: 2px solid var(--color-outline-variant);
}

.blog-featured__author-info {
    display: flex;
    flex-direction: column;
}

.blog-featured__author-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-secondary);
}

.blog-featured__author-role {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.blog-featured__cta {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.blog-featured__card:hover .blog-featured__cta {
    transform: translateX(4px);
}

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

/* --- Blog Card Grid --- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.blog-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-outline-variant);
    box-shadow: 0 4px 20px -4px rgba(0, 0, 0, 0.05);
    transition: box-shadow var(--transition-base);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    box-shadow: 0 8px 30px -4px rgba(0, 0, 0, 0.1);
}

.blog-card__img-link {
    display: block;
    position: relative;
    height: 220px;
    overflow: hidden;
    background: var(--color-surface-dim);
}

.blog-card__thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.blog-card:hover .blog-card__thumb {
    transform: scale(1.05);
}

.blog-card__placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-surface-dim), var(--color-surface-container-high));
}

.blog-card__cat {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(4px);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-xs);
}

.blog-card__body {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-card__meta {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
}

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

.blog-card__meta .material-symbols-outlined {
    font-size: 14px;
}

.blog-card__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-secondary);
    line-height: 1.35;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-fast);
}

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

.blog-card__body > a {
    color: inherit;
}

.blog-card__body > a:hover {
    color: inherit;
}

.blog-card__excerpt {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--space-lg);
}

.blog-card__footer {
    margin-top: auto;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-outline-variant);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-card__avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.blog-card__author {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
}

/* --- Newsletter CTA --- */
.blog-newsletter {
    background: var(--color-surface);
    padding: var(--space-3xl) 0;
    border-top: 1px solid var(--color-outline-variant);
}

.blog-newsletter__card {
    position: relative;
    background: var(--color-primary);
    border-radius: 1.5rem;
    padding: var(--space-xl) var(--space-2xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
}

.blog-newsletter__glow {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.blog-newsletter__glow--1 {
    top: -2.5rem;
    right: -2.5rem;
    width: 16rem;
    height: 16rem;
    background: rgba(255, 255, 255, 0.05);
    filter: blur(48px);
}

.blog-newsletter__glow--2 {
    bottom: -2.5rem;
    left: -2.5rem;
    width: 12rem;
    height: 12rem;
    background: rgba(96, 165, 250, 0.2);
    filter: blur(32px);
}

.blog-newsletter__text {
    position: relative;
    z-index: 1;
    flex: 1 1 280px;
}

.blog-newsletter__title {
    font-size: clamp(1.25rem, 2.5vw, 1.875rem);
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.75rem;
}

.blog-newsletter__desc {
    color: rgba(219, 234, 254, 0.85);
    font-size: var(--font-size-base);
    line-height: 1.7;
    margin: 0;
}

.blog-newsletter__form-wrap {
    position: relative;
    z-index: 1;
    flex: 1 1 280px;
    max-width: 420px;
}

.blog-newsletter__form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.blog-newsletter__input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    color: var(--color-text);
    outline: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.blog-newsletter__input:focus {
    box-shadow: 0 0 0 2px #facc15;
}

.blog-newsletter__btn {
    padding: 0.875rem 1.5rem;
    background: #facc15;
    color: var(--color-secondary);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: background var(--transition-fast);
    white-space: nowrap;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.blog-newsletter__btn:hover {
    background: #eab308;
    color: var(--color-secondary);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.blog-newsletter__note {
    font-size: var(--font-size-xs);
    color: rgba(191, 219, 254, 0.7);
    margin-top: 0.75rem;
    margin-bottom: 0;
}

/* --- Responsive: Desktop featured card horizontal layout --- */
@media (min-width: 769px) {
    .blog-hero {
        padding: var(--space-3xl) 0 clamp(4rem, 8vw, 7rem);
    }

    .blog-featured__card {
        flex-direction: row;
    }

    .blog-featured__image {
        width: 60%;
        min-height: 360px;
    }

    .blog-featured__body {
        width: 40%;
        padding: var(--space-xl) var(--space-2xl);
    }

    .blog-newsletter__form {
        flex-direction: row;
    }

    .blog-newsletter__input {
        flex: 1;
    }
}

/* --- Responsive: Tablet --- */
@media (min-width: 769px) and (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* --- Responsive: Mobile --- */
@media (max-width: 768px) {
    .blog-hero {
        padding: var(--space-2xl) 0 var(--space-2xl);
    }

    .blog-hero__title {
        font-size: var(--font-size-2xl);
    }

    .blog-search__btn {
        padding: 0 1rem;
        font-size: var(--font-size-xs);
    }

    .blog-search__input {
        padding-right: 6rem;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .blog-featured__body {
        padding: var(--space-lg);
    }

    .blog-featured__cta {
        display: none;
    }

    .blog-newsletter__card {
        padding: var(--space-xl) var(--space-lg);
        border-radius: var(--radius-lg);
        flex-direction: column;
        text-align: center;
    }

    .blog-newsletter__form-wrap {
        max-width: 100%;
    }

    .blog-newsletter__note {
        text-align: center;
    }

    .blog-card__img-link {
        height: 200px;
    }
}