/* ============================================================
   BLOG.CSS — EcoBuild Studio
   Blog listing page styles only.
   ============================================================ */

/* ══════════════════════════════════════
   PAGE HERO / BREADCRUMB
══════════════════════════════════════ */
.page-hero {
    position: relative;
    min-height: 340px;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    overflow: hidden;
}

.page-hero__bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
    transform: scale(1.05);
    transition: transform 6s ease;
}

.page-hero:hover .page-hero__bg { transform: scale(1); }

.page-hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,40,20,0.82) 0%, rgba(15,74,50,0.65) 100%);
    z-index: 0;
}

.page-hero .container {
    position: relative;
    z-index: 1;
    padding-block: var(--space-2xl);
}

.page-hero__content { text-align: center; }

.page-hero__title {
    font-family: var(--ff-heading);
    font-size: var(--fs-h1);
    font-weight: var(--fw-bold);
    color: var(--clr-white);
    line-height: var(--lh-tight);
    margin-bottom: var(--space-sm);
}

.page-hero__desc {
    color: rgba(255,255,255,0.75);
    font-size: var(--fs-lg);
    margin-bottom: var(--space-md);
    max-width: 560px;
    margin-inline: auto;
}

.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.65);
}

.breadcrumb a {
    color: rgba(255,255,255,0.75);
    transition: color 0.2s;
}

.breadcrumb a:hover { color: var(--clr-secondary-light); }
.breadcrumb__sep { color: rgba(255,255,255,0.35); font-size: 0.7em; }

/* ══════════════════════════════════════
   FEATURED POST (BIG CARD)
══════════════════════════════════════ */
.blog-featured {
    margin-bottom: var(--space-2xl);
}

.blog-featured__card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border-light);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    text-decoration: none;
}

.blog-featured__card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

@media (max-width: 900px) {
    .blog-featured__card { grid-template-columns: 1fr; }
}

.blog-featured__image {
    position: relative;
    overflow: hidden;
    min-height: 380px;
}

@media (max-width: 900px) {
    .blog-featured__image { min-height: 260px; }
}

.blog-featured__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.blog-featured__card:hover .blog-featured__image img {
    transform: scale(1.06);
}

.blog-featured__badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--clr-primary);
    color: var(--clr-white);
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    text-transform: uppercase;
    letter-spacing: var(--ls-wide);
    padding: 5px 12px;
    border-radius: var(--radius-full);
}

.blog-featured__content {
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-md);
}

@media (max-width: 900px) {
    .blog-featured__content { padding: var(--space-xl); }
}

.blog-featured__meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.blog-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: var(--fs-xs);
    color: var(--clr-text-muted);
    font-weight: var(--fw-medium);
}

.blog-meta-item i { color: var(--clr-primary); font-size: 0.9em; }

.blog-featured__cat {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    text-transform: uppercase;
    letter-spacing: var(--ls-wide);
    color: var(--clr-primary);
    background: rgba(var(--clr-primary-rgb), 0.08);
    padding: 3px 10px;
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: background 0.2s;
}

.blog-featured__cat:hover { background: rgba(var(--clr-primary-rgb), 0.16); }

.blog-featured__title {
    font-family: var(--ff-heading);
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: var(--fw-bold);
    color: var(--clr-text);
    line-height: var(--lh-tight);
    text-decoration: none;
    transition: color 0.2s;
}

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

.blog-featured__excerpt {
    font-size: var(--fs-base);
    line-height: var(--lh-relaxed);
    color: var(--clr-text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-featured__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding-top: var(--space-md);
    border-top: 1px solid var(--clr-border-light);
    flex-wrap: wrap;
}

.blog-author {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
}

.blog-author__avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--clr-border-light);
}

.blog-author__avatar-placeholder {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-light));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--fw-bold);
    font-size: var(--fs-sm);
    flex-shrink: 0;
}

.blog-author__name {
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--clr-text);
}

.blog-author__role {
    font-size: var(--fs-xs);
    color: var(--clr-text-muted);
}

/* ══════════════════════════════════════
   BLOG MAIN LAYOUT (CONTENT + SIDEBAR)
══════════════════════════════════════ */
.blog-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: var(--space-2xl);
    align-items: start;
}

@media (max-width: 1100px) {
    .blog-layout { grid-template-columns: 1fr; }
    .blog-sidebar { order: -1; }
}

/* ══════════════════════════════════════
   CATEGORY FILTER TABS
══════════════════════════════════════ */
.blog-filter {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.blog-filter__btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border-radius: var(--radius-full);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    cursor: pointer;
    transition: var(--transition-base);
    border: 1.5px solid var(--clr-border);
    background: var(--clr-bg-card);
    color: var(--clr-text-secondary);
    text-decoration: none;
}

.blog-filter__btn:hover,
.blog-filter__btn.active {
    background: var(--clr-primary);
    border-color: var(--clr-primary);
    color: var(--clr-white);
}

.blog-filter__count {
    background: rgba(255,255,255,0.25);
    border-radius: var(--radius-full);
    padding: 1px 6px;
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    min-width: 20px;
    text-align: center;
}

.blog-filter__btn:not(.active) .blog-filter__count {
    background: var(--clr-bg-alt);
    color: var(--clr-text-muted);
}

/* ══════════════════════════════════════
   BLOG GRID
══════════════════════════════════════ */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

@media (max-width: 700px) {
    .blog-grid { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════
   BLOG CARD
══════════════════════════════════════ */
.blog-card {
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xs);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--clr-primary);
}

.blog-card__image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
    display: block;
    text-decoration: none;
}

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

.blog-card:hover .blog-card__image img { transform: scale(1.07); }

.blog-card__cat {
    position: absolute;
    bottom: var(--space-sm);
    left: var(--space-sm);
    background: var(--clr-primary);
    color: white;
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    text-transform: uppercase;
    letter-spacing: var(--ls-wide);
    padding: 3px 10px;
    border-radius: var(--radius-full);
    text-decoration: none;
}

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

.blog-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.blog-card__title {
    font-family: var(--ff-heading);
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
    color: var(--clr-text);
    line-height: var(--lh-tight);
    text-decoration: none;
    transition: color 0.2s;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.blog-card__excerpt {
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
    color: var(--clr-text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.blog-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--clr-border-light);
}

.blog-card__read-more {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--clr-primary);
    text-decoration: none;
    transition: gap 0.2s;
}

.blog-card__read-more:hover { gap: 8px; }

/* ══════════════════════════════════════
   PAGINATION
══════════════════════════════════════ */
.blog-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    margin-top: var(--space-2xl);
    flex-wrap: wrap;
}

.blog-pagination a,
.blog-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    text-decoration: none;
    border: 1.5px solid var(--clr-border);
    color: var(--clr-text-secondary);
    background: var(--clr-bg-card);
    transition: var(--transition-base);
}

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

.blog-pagination a.active,
.blog-pagination span.active {
    background: var(--clr-primary);
    border-color: var(--clr-primary);
    color: white;
    font-weight: var(--fw-bold);
}

.blog-pagination span.dots {
    border: none;
    background: none;
    color: var(--clr-text-muted);
    cursor: default;
}

.blog-pagination a.prev,
.blog-pagination a.next {
    width: auto;
    padding-inline: var(--space-md);
    gap: 6px;
    font-size: var(--fs-sm);
}

/* ══════════════════════════════════════
   SIDEBAR
══════════════════════════════════════ */
.blog-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    position: sticky;
    top: calc(var(--header-height) + var(--space-lg));
}

@media (max-width: 1100px) {
    .blog-sidebar { position: static; }
}

.sidebar-widget {
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
}

.sidebar-widget__header {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--clr-border-light);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.sidebar-widget__header h3 {
    font-family: var(--ff-heading);
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    color: var(--clr-text);
}

.sidebar-widget__icon {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-md);
    background: rgba(var(--clr-primary-rgb), 0.1);
    color: var(--clr-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    flex-shrink: 0;
}

.sidebar-widget__body { padding: var(--space-lg); }

/* Search */
.sidebar-search {
    display: flex;
    gap: 0;
    border: 1.5px solid var(--clr-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color 0.2s;
}

.sidebar-search:focus-within { border-color: var(--clr-primary); }

.sidebar-search input {
    flex: 1;
    padding: 10px var(--space-md);
    background: var(--clr-bg);
    color: var(--clr-text);
    font-size: var(--fs-sm);
    border: none;
    outline: none;
}

.sidebar-search input::placeholder { color: var(--clr-text-muted); }

.sidebar-search button {
    width: 44px;
    background: var(--clr-primary);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    flex-shrink: 0;
}

.sidebar-search button:hover { background: var(--clr-primary-dark); }

/* Categories List */
.sidebar-cat-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.sidebar-cat-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--clr-border-light);
    text-decoration: none;
    color: var(--clr-text);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    transition: color 0.2s, padding-left 0.2s;
    gap: var(--space-sm);
}

.sidebar-cat-item:last-child { border-bottom: none; }
.sidebar-cat-item:hover { color: var(--clr-primary); padding-left: 4px; }

.sidebar-cat-item.active { color: var(--clr-primary); }

.sidebar-cat-item__left {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.sidebar-cat-item__left i { color: var(--clr-primary); font-size: 0.85rem; }

.sidebar-cat-count {
    background: var(--clr-bg-alt);
    color: var(--clr-text-muted);
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    min-width: 24px;
    text-align: center;
}

.sidebar-cat-item:hover .sidebar-cat-count,
.sidebar-cat-item.active .sidebar-cat-count {
    background: rgba(var(--clr-primary-rgb), 0.12);
    color: var(--clr-primary);
}

/* Recent Posts */
.sidebar-recent-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.sidebar-recent-item {
    display: flex;
    gap: var(--space-sm);
    text-decoration: none;
    transition: opacity 0.2s;
}

.sidebar-recent-item:hover { opacity: 0.8; }

.sidebar-recent-thumb {
    width: 68px;
    height: 54px;
    border-radius: var(--radius-md);
    object-fit: cover;
    flex-shrink: 0;
    background: var(--clr-bg-alt);
}

.sidebar-recent-thumb-placeholder {
    width: 68px;
    height: 54px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(var(--clr-primary-rgb), 0.1), rgba(var(--clr-primary-rgb), 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-primary);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.sidebar-recent-info { flex: 1; min-width: 0; }

.sidebar-recent-title {
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--clr-text);
    line-height: var(--lh-tight);
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sidebar-recent-date {
    font-size: var(--fs-xs);
    color: var(--clr-text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Tag Cloud */
.sidebar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.sidebar-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    background: var(--clr-bg-alt);
    color: var(--clr-text-secondary);
    border: 1px solid var(--clr-border-light);
    text-decoration: none;
    transition: var(--transition-base);
}

.sidebar-tag:hover {
    background: var(--clr-primary);
    color: white;
    border-color: var(--clr-primary);
    transform: translateY(-1px);
}

/* Newsletter mini widget */
.sidebar-newsletter {
    background: linear-gradient(135deg, var(--clr-primary-dark), var(--clr-primary));
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    color: white;
}

.sidebar-newsletter i {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
    display: block;
    opacity: 0.9;
}

.sidebar-newsletter h3 {
    font-family: var(--ff-heading);
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
    margin-bottom: var(--space-xs);
}

.sidebar-newsletter p {
    font-size: var(--fs-sm);
    opacity: 0.8;
    margin-bottom: var(--space-md);
    line-height: var(--lh-relaxed);
}

.sidebar-newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.sidebar-newsletter-form input {
    padding: 10px var(--space-md);
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.15);
    border: 1.5px solid rgba(255,255,255,0.25);
    color: white;
    font-size: var(--fs-sm);
    outline: none;
    transition: border-color 0.2s;
}

.sidebar-newsletter-form input::placeholder { color: rgba(255,255,255,0.6); }
.sidebar-newsletter-form input:focus { border-color: rgba(255,255,255,0.6); }

.sidebar-newsletter-form button {
    padding: 10px;
    border-radius: var(--radius-md);
    background: var(--clr-secondary);
    color: var(--clr-black);
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
    cursor: pointer;
    border: none;
    transition: background 0.2s, transform 0.15s;
}

.sidebar-newsletter-form button:hover {
    background: var(--clr-secondary-light);
    transform: translateY(-1px);
}

/* No posts */
.blog-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-3xl) var(--space-xl);
    color: var(--clr-text-muted);
}

.blog-empty i {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    display: block;
    color: var(--clr-border);
}

.blog-empty h3 {
    font-family: var(--ff-heading);
    font-size: var(--fs-xl);
    color: var(--clr-text);
    margin-bottom: var(--space-xs);
}

/* ══════════════════════════════════════
   CTA SECTION
══════════════════════════════════════ */
.cta-section {
    position: relative;
    padding-block: var(--space-3xl);
    overflow: hidden;
}

.cta-section__bg {
    position: absolute;
    inset: -30%;
    background-size: cover;
    background-position: center;
    z-index: 0;
    will-change: transform;
}

.cta-section__overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 40, 20, .78);
    z-index: 1;
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

.cta-content { padding-block: var(--space-lg); }

.cta-content h2 {
    font-family: var(--ff-heading);
    font-size: clamp(2rem, 3vw, 3rem);
    font-weight: var(--fw-bold);
    color: var(--clr-white);
    margin-bottom: var(--space-sm);
}

.cta-content p {
    font-size: var(--fs-lg);
    color: rgba(255, 255, 255, .8);
    margin-bottom: var(--space-xl);
}

.cta-content > div {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
}

@media (max-width: 768px) {
    .cta-content > div { flex-direction: column; align-items: center; }
}