/* ضایعات طالب — استایل مشترک صفحات وبلاگ (لیست مقالات + تک‌مقاله) */

/* ---------- سربرگ صفحات داخلی ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(820px 420px at 85% -20%, rgba(37,99,235,.42), transparent 62%),
    radial-gradient(620px 380px at 6% 120%, rgba(234,88,12,.22), transparent 60%),
    linear-gradient(160deg,var(--navy-900) 0%,var(--navy-950) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.3;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 55% 40%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 55% 40%,#000,transparent 78%);
}
.page-hero__inner{position:relative;z-index:1;padding-block:44px 56px;max-width:760px}
.page-hero h1{font-size:clamp(1.6rem,3.6vw,2.5rem);margin-bottom:14px;line-height:1.45}
.page-hero p{color:#C7D6EC;font-size:1.0312rem;max-width:60ch}

.crumbs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:.875rem;margin-bottom:18px;color:#9DB6D8}
.crumbs a{color:#C7D6EC;transition:color .18s ease}
.crumbs a:hover{color:#fff;text-decoration:underline}
.crumbs svg{width:14px;height:14px;flex:none;opacity:.6}
.crumbs [aria-current]{color:#fff;font-weight:600}
.crumbs--dark{color:var(--muted)}
.crumbs--dark a{color:var(--blue-700)}
.crumbs--dark [aria-current]{color:var(--ink)}
.crumbs--dark svg{opacity:.45}

/* ---------- نوار ابزار: جست‌وجو + فیلتر ---------- */
.blog-toolbar{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  margin-bottom:34px;
}
.blog-toolbar .tabs{margin-bottom:0;justify-content:flex-start}
.searchbox{position:relative;flex:0 1 300px;min-width:230px}
.searchbox input{
  width:100%;min-height:48px;border-radius:var(--radius-pill);border:1.5px solid var(--line);
  background:#fff;padding:0 46px 0 18px;font:inherit;font-size:.9375rem;color:var(--ink);
  transition:border-color .2s ease, box-shadow .2s ease;
}
.searchbox input::placeholder{color:#8494A8}
.searchbox input:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 4px var(--blue-50)}
.searchbox input:focus-visible{outline:none}
.searchbox svg{
  position:absolute;inset-inline-start:16px;top:50%;transform:translateY(-50%);
  width:19px;height:19px;color:#8494A8;pointer-events:none;
}

/* ---------- مقالهٔ شاخص ---------- */
.featured{
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);margin-bottom:44px;
}
.featured__media{position:relative;min-height:320px;background:var(--line-soft)}
.featured__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.featured__flag{
  position:absolute;top:16px;inset-inline-start:16px;z-index:1;
  background:var(--orange-700);color:#fff;font-size:.75rem;font-weight:700;
  padding:7px 15px;border-radius:var(--radius-pill);box-shadow:var(--shadow-sm);
}
.featured__body{padding:38px 36px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.featured__body h2{font-size:clamp(1.25rem,2.4vw,1.75rem);line-height:1.55}
.featured__body h2 a{transition:color .18s ease}
.featured__body h2 a:hover{color:var(--blue-700)}
.featured__body p{color:var(--muted);font-size:1rem}
@media (max-width:880px){
  .featured{grid-template-columns:1fr}
  .featured__media{min-height:230px}
  .featured__body{padding:28px 22px}
}

/* ---------- کارت مقاله ---------- */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media (max-width:980px){.posts{grid-template-columns:repeat(2,1fr);gap:18px}}
@media (max-width:620px){.posts{grid-template-columns:1fr}}

.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--blue-100)}
.post-card.is-hidden{display:none}
.post-card__media{display:block;position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--line-soft)}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.post-card:hover .post-card__media img{transform:scale(1.05)}
.post-card__cat{
  position:absolute;top:12px;inset-inline-start:12px;
  background:rgba(7,20,38,.84);color:#fff;font-size:.6875rem;font-weight:700;
  padding:5px 12px;border-radius:var(--radius-pill);backdrop-filter:blur(4px);
}
.post-card__body{padding:20px 20px 0;display:flex;flex-direction:column;gap:9px;flex:1}
.post-card__body h3{font-size:1.0625rem;line-height:1.65}
.post-card__body h3 a{transition:color .18s ease}
.post-card__body h3 a:hover{color:var(--blue-700)}
.post-card__body p{
  color:var(--muted);font-size:.9062rem;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:.8125rem;color:var(--muted);
}
.post-meta span{display:flex;align-items:center;gap:6px}
.post-meta svg{width:15px;height:15px;flex:none;color:var(--blue-500)}
.post-card__foot{
  margin-top:16px;padding:14px 20px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.readmore{display:inline-flex;align-items:center;gap:6px;font-size:.875rem;font-weight:700;color:var(--orange-700)}
.readmore svg{width:16px;height:16px;transition:transform .2s ease}
.post-card:hover .readmore svg{transform:translateX(-4px)}

/* ---------- حالت خالی ---------- */
.empty{
  display:none;text-align:center;padding:56px 24px;background:#fff;
  border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted);
}
.empty.is-shown{display:block}
.empty svg{width:52px;height:52px;color:#B6C4D6;margin:0 auto 14px}
.empty b{display:block;color:var(--ink);font-size:1.0625rem;margin-bottom:6px}

/* ---------- صفحه‌بندی ---------- */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:44px;flex-wrap:wrap}
.pager a,.pager span{
  min-width:46px;min-height:46px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1.5px solid var(--line);background:#fff;font-weight:700;font-size:.9375rem;
  color:#243B57;transition:.2s ease;
}
.pager a:hover{border-color:var(--blue-500);color:var(--blue-700);background:var(--blue-50)}
.pager [aria-current="page"]{background:var(--navy-900);border-color:var(--navy-900);color:#fff}
.pager .is-disabled{opacity:.45;pointer-events:none}
.pager svg{width:17px;height:17px}
.pager[hidden]{display:none}

/* ============================================================
   صفحهٔ تک‌مقاله
   ============================================================ */

/* نوار پیشرفت مطالعه */
.progress{position:fixed;top:0;inset-inline:0;height:3px;z-index:110;background:transparent;pointer-events:none}
.progress span{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--blue-500),var(--orange-600));
  transition:width .1s linear;
}

.article-head{max-width:820px}
.article-head h1{font-size:clamp(1.6rem,3.6vw,2.4rem);line-height:1.5;margin-bottom:18px}
.article-head .post-meta{color:#B6C9E4;gap:20px;font-size:.875rem}
.article-head .post-meta svg{color:var(--orange-400)}
.badge-cat{
  display:inline-block;background:var(--orange-700);color:#fff;font-size:.8125rem;font-weight:700;
  padding:6px 15px;border-radius:var(--radius-pill);margin-bottom:16px;
}

.article-cover{
  margin:-46px auto 0;max-width:var(--container);position:relative;z-index:2;padding-inline:20px;
}
.article-cover figure{margin:0}
.article-cover img{
  width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
  aspect-ratio:21/9;object-fit:cover;background:var(--line-soft);
}
.article-cover figcaption{
  text-align:center;font-size:.8125rem;color:var(--muted);margin-top:12px;
}
@media (max-width:700px){.article-cover img{aspect-ratio:16/10}}

.article-layout{display:grid;grid-template-columns:270px 1fr;gap:44px;align-items:start}
/* بدون این، min-content جدول ستون را پهن‌تر از صفحه می‌کند و اسکرول افقی می‌سازد */
.article-layout > *{min-width:0}
@media (max-width:960px){.article-layout{grid-template-columns:1fr;gap:26px}}

/* فهرست مطالب */
.toc{position:sticky;top:calc(var(--header-h) + 20px)}
.toc__box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px}
.toc summary{
  display:flex;align-items:center;gap:9px;font-size:1rem;font-weight:800;color:var(--ink);
  margin-bottom:14px;list-style:none;cursor:default;pointer-events:none;
}
.toc summary::-webkit-details-marker{display:none}
.toc summary svg{width:19px;height:19px;color:var(--blue-600);flex:none}
.toc summary > span{display:flex;align-items:center;gap:9px}
.toc ol{counter-reset:toc;display:grid;gap:2px}
.toc li{counter-increment:toc}
.toc a{
  display:flex;gap:9px;padding:9px 10px;border-radius:10px;font-size:.9062rem;
  color:#33465F;line-height:1.7;transition:background-color .18s ease,color .18s ease;
  border-inline-start:2.5px solid transparent;
}
.toc a::before{content:counter(toc) "."; color:var(--blue-500);font-weight:700;flex:none}
.toc a:hover{background:var(--blue-50);color:var(--blue-700)}
.toc a.is-active{background:var(--blue-50);color:var(--blue-700);font-weight:700;border-inline-start-color:var(--blue-600)}
@media (max-width:960px){
  .toc{position:static}
  .toc__box{padding:0;border:0;background:transparent}
  .toc details{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
  .toc summary{
    display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;
    margin-bottom:0;cursor:pointer;pointer-events:auto;font-weight:700;list-style:none;min-height:56px;
  }
  .toc summary > span{display:flex;align-items:center;gap:9px}
  .toc summary::-webkit-details-marker{display:none}
  .toc summary::after{
    content:"";flex:none;width:28px;height:28px;border-radius:50%;
    background:var(--blue-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231D4ED8' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") center / 15px 15px no-repeat;
    transition:transform .25s ease;
  }
  .toc details[open] summary::after{transform:rotate(180deg)}
  .toc ol{padding:0 12px 14px}
}

/* ---------- بدنهٔ مقاله ---------- */
.prose{max-width:75ch;font-size:1.0625rem;line-height:2.1;color:#25303F;min-width:0;overflow-wrap:anywhere}
.prose > * + *{margin-top:22px}
.prose h2{
  font-size:clamp(1.25rem,2.4vw,1.625rem);margin-top:48px;padding-top:6px;
  scroll-margin-top:calc(var(--header-h) + 24px);
}
.prose h3{font-size:1.125rem;margin-top:34px;scroll-margin-top:calc(var(--header-h) + 24px)}
.prose h2 + p,.prose h3 + p{margin-top:14px}
.prose .lead{font-size:1.1875rem;line-height:2;color:var(--ink);font-weight:500}
.prose a:not(.btn){color:var(--blue-700);font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1.5px}
.prose a:not(.btn):hover{color:var(--orange-700)}
.prose strong{font-weight:700;color:var(--ink)}
.prose mark{background:#FEF3C7;color:var(--ink);padding:1px 5px;border-radius:5px}
.prose hr{border:0;border-top:1px solid var(--line);margin-block:38px}

.prose ul,.prose ol{padding-inline-start:6px;display:grid;gap:11px}
.prose ul li{position:relative;padding-inline-start:28px}
.prose ul li::before{
  content:"";position:absolute;inset-inline-start:6px;top:.85em;width:8px;height:8px;
  border-radius:50%;background:var(--blue-500);
}
.prose ol{counter-reset:li}
.prose ol li{position:relative;padding-inline-start:38px;counter-increment:li}
.prose ol li::before{
  content:counter(li);position:absolute;inset-inline-start:0;top:.35em;
  width:26px;height:26px;border-radius:50%;background:var(--blue-50);color:var(--blue-700);
  display:grid;place-items:center;font-size:.8125rem;font-weight:800;line-height:1;
}

.prose blockquote{
  margin-inline:0;padding:22px 26px;background:var(--blue-50);
  border-inline-start:4px solid var(--blue-600);border-radius:var(--radius-sm);
  font-size:1.0625rem;color:var(--navy-800);position:relative;
}
.prose blockquote p + p{margin-top:12px}
.prose blockquote cite{display:block;margin-top:12px;font-size:.875rem;font-style:normal;color:var(--muted);font-weight:600}

/* جعبه‌های تأکید */
.callout{display:flex;gap:15px;padding:20px 22px;border-radius:var(--radius);border:1px solid;font-size:1rem;line-height:1.95}
.callout__ico{flex:none;width:26px;height:26px;margin-top:2px}
.callout b{display:block;margin-bottom:4px}
.callout--tip{background:#F0FDF4;border-color:#BBF7D0;color:#14532D}
.callout--tip .callout__ico{color:#16A34A}
.callout--warn{background:#FFFBEB;border-color:#FDE68A;color:#78350F}
.callout--warn .callout__ico{color:#D97706}
.callout--info{background:var(--blue-50);border-color:var(--blue-100);color:var(--navy-800)}
.callout--info .callout__ico{color:var(--blue-600)}

/* تصویر و گالری داخل متن */
.prose figure{margin:0}
.prose figure img{width:100%;border-radius:var(--radius);background:var(--line-soft)}
.prose figcaption{margin-top:10px;font-size:.8438rem;color:var(--muted);text-align:center;line-height:1.8}
.figure-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:600px){.figure-row{grid-template-columns:1fr}}

/* جدول */
.table-wrap{
  max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;
  border:1px solid var(--line);border-radius:var(--radius);background:#fff;
}
.prose table{width:100%;border-collapse:collapse;font-size:.9375rem;min-width:520px}
@media (max-width:600px){
  .prose table{min-width:460px;font-size:.875rem}
  .prose th,.prose td{padding:11px 12px}
}
.prose caption{caption-side:bottom;padding:12px 16px;font-size:.8125rem;color:var(--muted);text-align:start}
.prose th,.prose td{padding:13px 16px;text-align:start;border-bottom:1px solid var(--line-soft);line-height:1.8}
.prose thead th{background:var(--navy-900);color:#fff;font-weight:700;white-space:nowrap}
.prose tbody tr:last-child td{border-bottom:0}
.prose tbody tr:nth-child(even){background:#FAFCFF}
.prose td .num{direction:ltr;unicode-bidi:isolate;font-variant-numeric:tabular-nums}

/* جعبهٔ تماس داخل مقاله */
.inline-cta{
  display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;
  padding:26px 28px;border-radius:var(--radius);color:#fff;
  background:linear-gradient(140deg,var(--blue-700),var(--navy-900));
}
.inline-cta b{display:block;font-size:1.125rem;margin-bottom:6px}
.inline-cta p{color:#CFDEF5;font-size:.9375rem;max-width:46ch}
.inline-cta .num{direction:ltr;unicode-bidi:isolate}

/* آکاردئون کوچک داخل مقاله */
.mini-faq{display:grid;gap:10px}
.mini-faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
.mini-faq details[open]{border-color:var(--blue-100)}
.mini-faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 18px;
  cursor:pointer;font-weight:700;font-size:.9688rem;list-style:none;min-height:52px;
}
.mini-faq summary::-webkit-details-marker{display:none}
.mini-faq summary::after{
  content:"";flex:none;width:26px;height:26px;border-radius:50%;
  background:var(--blue-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231D4ED8' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") center / 14px 14px no-repeat;
  transition:transform .25s ease;
}
.mini-faq details[open] summary::after{transform:rotate(180deg)}
.mini-faq .a{padding:0 18px 16px;font-size:.9375rem;color:var(--muted);line-height:1.95}

/* ---------- برچسب‌ها و اشتراک‌گذاری ---------- */
.article-foot{max-width:75ch;min-width:0;margin-top:44px;display:grid;gap:26px}
.tags{display:flex;flex-wrap:wrap;gap:9px;align-items:center}
.tags b{font-size:.9375rem;margin-inline-end:4px}
.tags a{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:7px 15px;font-size:.875rem;font-weight:600;color:#33465F;transition:.2s ease;
}
.tags a:hover{border-color:var(--blue-500);color:var(--blue-700);background:var(--blue-50)}

.share{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding-top:22px;border-top:1px solid var(--line)}
.share b{font-size:.9375rem;margin-inline-end:4px}
.share a,.share button{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 16px;
  border-radius:var(--radius-pill);border:1.5px solid var(--line);background:#fff;
  font-size:.875rem;font-weight:700;color:#33465F;cursor:pointer;transition:.2s ease;
}
.share a:hover,.share button:hover{border-color:var(--blue-500);color:var(--blue-700);background:var(--blue-50)}
.share svg{width:17px;height:17px}
.share .copied{color:#15803D;border-color:#BBF7D0;background:#F0FDF4}

/* نویسنده */
.author{
  display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;
}
.author__avatar{
  flex:none;width:64px;height:64px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue-600),var(--navy-900));color:#fff;font-weight:800;font-size:1.25rem;
}
.author b{display:block;font-size:1.0625rem;margin-bottom:4px}
.author p{color:var(--muted);font-size:.9375rem;line-height:1.9}
.author .num{direction:ltr;unicode-bidi:isolate}

/* مقاله قبلی / بعدی */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:44px}
@media (max-width:700px){.prevnext{grid-template-columns:1fr}}
.prevnext a{
  display:flex;flex-direction:column;gap:7px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:20px 22px;transition:.25s ease;
}
.prevnext a:hover{border-color:var(--blue-100);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.prevnext small{display:flex;align-items:center;gap:7px;font-size:.8125rem;color:var(--muted);font-weight:600}
.prevnext small svg{width:15px;height:15px;color:var(--blue-500)}
.prevnext b{font-size:1rem;line-height:1.7;font-weight:700}
.prevnext .next{text-align:end}
.prevnext .next small{justify-content:flex-end}