/* ============== نوار پیشرفت مطالعه ============== */
.read-progress{
    position:fixed;
    top:0; inset-inline:0;
    height:3px;
    width:0%;
    background:linear-gradient(90deg, var(--c-secondary), var(--c-primary));
    z-index:9998;
    transition:width .1s linear;
}

/* ============== HERO مقاله ============== */
.article-hero{
    position:relative;
    padding:150px 0 60px;
    background:
        radial-gradient(ellipse 70% 55% at 90% -10%, rgba(40,158,188,.16), transparent 60%),
        var(--c-paper);
    text-align:center;
}
.article-hero .breadcrumb{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:600;
    color:var(--c-muted);
    margin-bottom:24px;
    flex-wrap:wrap;
    justify-content:center;
}
.article-hero .breadcrumb a{ color:var(--c-secondary-dark); }
.article-hero .breadcrumb svg{ width:11px; height:11px; opacity:.6; }
.article-cats{
    display:flex;
    gap:8px;
    justify-content:center;
    flex-wrap:wrap;
    margin-bottom:22px;
}
.article-cats a{
    background:rgba(40,158,188,.1);
    border:1px solid rgba(40,158,188,.25);
    color:var(--c-secondary-dark);
    font-size:12.5px;
    font-weight:700;
    padding:7px 16px;
    border-radius:var(--radius-pill);
}
.article-hero h1{
    max-width:820px;
    margin:0 auto 24px;
    font-size:clamp(26px,4.2vw,46px);
    font-weight:800;
    line-height:1.5;
    color:var(--c-primary);
}
.article-hero .lead{
    max-width:640px;
    margin:0 auto 30px;
    color:#1a1a20;
    font-size:16px;
    line-height:1.9;
}
.article-meta-row{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:26px;
    flex-wrap:wrap;
    font-size:13.5px;
    color:var(--c-muted);
    font-weight:600;
}
.article-meta-row span{
    display:flex;
    align-items:center;
    gap:7px;
}
.article-meta-row svg{ color:var(--c-secondary); flex-shrink:0; }

/* ============== تصویر شاخص ============== */
.article-cover{
    max-width:980px;
    margin:44px auto 0;
    padding:0 28px;
}
.article-cover .cover-frame{
    border-radius:var(--radius-lg);
    overflow:hidden;
    box-shadow:var(--shadow-hard);
    aspect-ratio:16/8;
}
.article-cover img{
    width:100%; height:100%; object-fit:cover;
}

/* ============== بدنه اصلی: محتوا + سایدبار ============== */
.article-body-wrap{
    display:grid;
    grid-template-columns:.72fr .28fr;
    gap:60px;
    align-items:start;
    padding-top:60px;
}

/* --- محتوای مقاله --- */
.article-content{
    max-width:760px;
}
.article-section{
    margin-bottom:46px;
}
.article-section h2{
    font-size:clamp(20px,2.4vw,26px);
    font-weight:800;
    color:var(--c-primary);
    line-height:1.6;
    margin-bottom:20px;
    padding-inline-start:16px;
    border-inline-start:4px solid var(--c-secondary);
}
.article-section .sec-img{
    border-radius:var(--radius-md);
    overflow:hidden;
    margin-bottom:22px;
    box-shadow:var(--shadow-soft);
}
.article-section .sec-img img{
    width:100%;
    display:block;
}
.article-section .sec-text{
    font-size:16.5px;
    line-height:2.1;
    color: #1a1a20;
}
.article-section .sec-text p{
    margin-bottom:18px;
}

/* --- تگ‌ها --- */
.article-tags{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:10px;
    margin-top:50px;
    padding-top:32px;
    border-top:1px solid var(--c-line);
}
.article-tags .tag-label{
    font-size:13.5px;
    font-weight:700;
    color:var(--c-primary);
}
.article-tags a{
    background:var(--c-paper-alt);
    color:var(--c-primary);
    font-size:12.5px;
    font-weight:600;
    padding:8px 16px;
    border-radius:var(--radius-pill);
    transition:.3s;
}
.article-tags a:hover{
    background:var(--c-secondary);
    color:#fff;
}

/* --- باکس اشتراک‌گذاری --- */
.article-share{
    display:flex;
    align-items:center;
    gap:12px;
    margin-top:30px;
}
.article-share span{
    font-size:13.5px;
    font-weight:700;
    color:var(--c-primary);
}
.article-share a{
    width:40px; height:40px;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    background:var(--c-paper-alt);
    color:var(--c-primary);
    transition:.3s;
}
.article-share a:hover{
    background:var(--c-secondary);
    color:#fff;
    transform:translateY(-3px);
}

/* --- CTA میان‌مقاله --- */
.inline-cta{
    background:linear-gradient(120deg, var(--c-primary), var(--c-primary-dark) 60%);
    border-radius:var(--radius-lg);
    padding:36px 32px;
    color:#fff;
    text-align:center;
    margin:44px 0;
}
.inline-cta h4{
    font-size:19px;
    font-weight:800;
    margin-bottom:10px;
}
.inline-cta p{
    color:rgba(255,255,255,.72);
    font-size:14px;
    margin-bottom:22px;
}

/* ============== سایدبار ============== */
.article-sidebar{
    position:sticky;
    top:110px;
    display:flex;
    flex-direction:column;
    gap:24px;
}
.sidebar-card{
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:var(--radius-lg);
    padding:26px;
    box-shadow:var(--shadow-soft);
}
.sidebar-card h5{
    font-size:15px;
    font-weight:800;
    color:var(--c-primary);
    margin-bottom:18px;
    display:flex;
    align-items:center;
    gap:8px;
}
.sidebar-card h5 svg{ color:var(--c-secondary); }
.author-box{
    display:flex;
    align-items:center;
    gap:14px;
}
.author-box .av{
    width:56px; height:56px;
    border-radius:50%;
    background:linear-gradient(135deg, var(--c-primary), var(--c-secondary));
    display:flex;
    align-items:center;
    justify-content:center;
    color:#fff;
    font-weight:800;
    font-size:18px;
    flex-shrink:0;
}
.author-box b{ display:block; font-size:14.5px; color:var(--c-primary); }
.author-box span{ font-size:12.5px; color:var(--c-muted); }

.sidebar-cta{
    background:linear-gradient(160deg, var(--c-secondary), var(--c-secondary-dark));
    color:#fff;
    text-align:center;
}
.sidebar-cta p{ font-size:13.5px; color:rgba(255,255,255,.85); margin-bottom:18px; line-height:1.8; }
.sidebar-cta .btn{ width:100%; background:#fff; color:var(--c-secondary-dark); box-shadow:none; }

/* ============== مقالات مرتبط ============== */
.related-section{
    background:var(--c-paper-alt);
    padding:90px 0;
    margin-top:80px;
}
.related-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:26px;
}

/* ============== ریسپانسیو ============== */
@media (max-width:1080px){
    .article-body-wrap{ grid-template-columns:1fr; }
    .article-sidebar{
        position:static;
        flex-direction:row;
        overflow-x:auto;
        gap:16px;
    }
    .article-sidebar .sidebar-card{ min-width:260px; }
    .related-grid{ grid-template-columns:repeat(2, 1fr); }
}

@media (max-width:760px){
    .article-hero{ padding:120px 0 40px; }
    .article-cover{ padding:0 16px; margin-top:32px; }
    .article-cover .cover-frame{ aspect-ratio:4/3; border-radius:var(--radius-md); }
    .article-body-wrap{ padding-top:40px; gap:30px; }
    .article-section .sec-text{ font-size:15.5px; line-height:1.95; }
    .article-section h2{ font-size:19px; }
    .article-sidebar{ display:none; }
    .article-content{ padding-bottom:90px; }
    .mobile-share-bar{ display:flex; }
    .inline-cta{ padding:28px 22px; }
    .related-section{ padding:60px 0; }
    .related-grid{ grid-template-columns:1fr; gap:20px; }
    .article-meta-row{ gap:16px; font-size:12.5px; }
}