/* =====================================================
   Dentistry Center - Article Page Styles
   Bootstrap 5 RTL is loaded separately; this file only
   contains the customizations specific to this page.
   ===================================================== */

:root {
    --color-primary: #1768e0;
    --color-primary-dark: #0f4eb0;
    --color-primary-light: #eaf2fe;
    --color-text: #222b3a;
    --color-text-muted: #6c7686;
    --color-border: #e7eaef;
    --color-bg-soft: #f8f9fb;
    --color-pink-bg: #fdeaee;
    --color-pink-text: #e2536f;
    --color-whatsapp: #25d366;
    --color-twitter: #1da1f2;
    --color-telegram: #229ed9;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-pill: 50px;
    --shadow-soft: 0 4px 18px rgba(20, 30, 60, 0.06);
}

html, body {
    font-family: 'Vazirmatn', Tahoma, sans-serif;
    color: var(--color-text);
    background-color: #ffffff;
}

a {
    text-decoration: none;
}

/* =================== Header / Navbar =================== */
.site-header {
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 2px 10px rgba(20, 30, 60, 0.04);
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.navbar {
    padding-top: .9rem;
    padding-bottom: .9rem;
}

.brand-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.brand-title {
    font-weight: 800;
    font-size: 1.05rem;
    color: var(--color-text);
}

.brand-sub {
    font-size: .72rem;
    color: var(--color-text-muted);
}

.navbar-nav .nav-link {
    color: var(--color-text);
    font-weight: 500;
    font-size: .92rem;
    padding: .5rem .85rem;
    border-radius: 8px;
    transition: all .15s ease-in-out;
}

.navbar-nav .nav-link:hover {
    background: var(--color-bg-soft);
    color: var(--color-primary);
}

.navbar-nav .nav-link.active {
    color: var(--color-primary);
    font-weight: 700;
    position: relative;
}

.navbar-nav .nav-link.active::after {
    content: "";
    position: absolute;
    bottom: -2px;
    right: 50%;
    transform: translateX(50%);
    width: 60%;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
}

.nav-actions .btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.nav-actions .btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

.nav-actions .btn-outline-primary {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* =================== Breadcrumb =================== */
.breadcrumb-wrap {
    font-size: .85rem;
}

.breadcrumb-item a {
    color: var(--color-text-muted);
}

.breadcrumb-item.active {
    color: var(--color-primary);
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "\203A"; /* small chevron, flips fine visually in rtl context */
}

/* =================== Article Section =================== */
.category-badge {
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 600;
    font-size: .85rem;
    padding: .5rem 1rem;
    border-radius: var(--radius-pill);
}

.article-title {
    font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.1rem);
    font-weight: 800;
    line-height: 1.5;
    margin: .9rem 0 1.2rem;
}

.article-lead {
    color: var(--color-text-muted);
    font-size: 1rem;
    line-height: 2;
}

.article-meta {
    border-top: 1px solid var(--color-border);
    padding-top: 1.2rem;
}

.meta-item {
    font-size: .88rem;
    color: var(--color-text-muted);
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    white-space: nowrap;
}

.meta-item i {
    color: var(--color-primary);
}

.meta-divider {
    width: 1px;
    height: 18px;
    background: var(--color-border);
}

.tags-title {
    font-size: 1rem;
    font-weight: 700;
}

.tag-pill {
    background: var(--color-pink-bg);
    color: var(--color-pink-text);
    font-size: .85rem;
    font-weight: 600;
    padding: .5rem 1.1rem;
    border-radius: var(--radius-pill);
    transition: opacity .15s ease;
}

.tag-pill:hover {
    opacity: .8;
}

/* =================== Featured Article Card =================== */
.article-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.article-card-img {
    overflow: hidden;
}

.article-card-img img {
    display: block;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.card-title-sm {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.6;
}

.card-date {
    font-size: .82rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: .4rem;
    margin-top: .5rem;
}

.card-date i {
    color: var(--color-primary);
}

.bookmark-btn {
    border-radius: var(--radius-pill);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
}

.bookmark-btn.is-saved {
    background: var(--color-primary);
    color: #fff;
}

.share-label {
    font-size: .85rem;
    color: var(--color-text-muted);
    font-weight: 600;
}

.share-circle {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1rem;
    flex-shrink: 0;
    transition: transform .15s ease;
}

.share-circle:hover {
    transform: translateY(-2px);
}

.share-circle.bg-whatsapp { background: var(--color-whatsapp); }
.share-circle.bg-twitter { background: var(--color-twitter); }
.share-circle.bg-telegram { background: var(--color-telegram); }
.share-circle.copy-link-btn {
    color: var(--color-text);
}

/* =================== Related Articles =================== */
.related-section {
    border-top: 1px solid var(--color-border);
}

.related-title {
    font-size: 1.4rem;
    font-weight: 800;
}

.view-all-link {
    color: var(--color-primary);
    font-weight: 600;
    font-size: .92rem;
    display: inline-flex;
    align-items: center;
    gap: .4rem;
}

.related-slider-wrap {
    padding: 0 0;
}

.related-slider {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 80%;
    gap: 1.25rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: .5rem;
    scrollbar-width: none;
}

.related-slider::-webkit-scrollbar {
    display: none;
}

.related-slide {
    scroll-snap-align: start;
}

@media (min-width: 576px) {
    .related-slider { grid-auto-columns: 48%; }
}

@media (min-width: 992px) {
    .related-slider { grid-auto-columns: 23.6%; }
}

.related-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: transform .2s ease, box-shadow .2s ease;
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(20, 30, 60, 0.1);
}

.related-card-img {
    position: relative;
    overflow: hidden;
}

.related-card-img img {
    aspect-ratio: 4 / 3;
    object-fit: cover;
    display: block;
}

.related-badge {
    position: absolute;
    top: .75rem;
    left: .75rem;
    background: rgba(255, 255, 255, .92);
    color: var(--color-text);
    font-size: .75rem;
    font-weight: 600;
    padding: .4rem .8rem;
    border-radius: var(--radius-pill);
}

.related-card-title {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.6;
    margin-bottom: .4rem;
}

.related-excerpt {
    font-size: .85rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.read-more-link {
    color: var(--color-primary);
    font-weight: 600;
    font-size: .88rem;
    display: inline-flex;
    align-items: center;
    gap: .35rem;
}

.slider-arrow {
    position: absolute;
    top: 38%;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: #fff;
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-soft);
    z-index: 5;
    transition: background .15s ease, color .15s ease;
}

.slider-arrow:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.slider-arrow-prev { right: -10px; }
.slider-arrow-next { left: -10px; }

@media (max-width: 767.98px) {
    .slider-arrow { display: none; }
}

/* =================== Floating WhatsApp Button =================== */
.whatsapp-float {
    position: fixed;
    bottom: 22px;
    left: 22px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-whatsapp);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    box-shadow: 0 6px 18px rgba(37, 211, 102, .45);
    z-index: 1040;
    transition: transform .15s ease;
}

.whatsapp-float:hover {
    transform: scale(1.08);
    color: #fff;
}

/* =================== Responsive tweaks =================== */
@media (max-width: 991.98px) {
    .article-card { margin-top: 1rem; }
    .article-title { margin-top: .6rem; }
}

@media (max-width: 575.98px) {
    .meta-item { font-size: .82rem; }
    .related-title { font-size: 1.2rem; }
    .whatsapp-float { width: 48px; height: 48px; font-size: 1.4rem; bottom: 16px; left: 16px; }
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .related-card, .share-circle, .whatsapp-float, .slider-arrow {
        transition: none;
    }
}