:root{--blue:#2563eb;--blue2:#138cff;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--bg:#f8fafc;--soft:#eff6ff;--shadow:0 18px 45px rgba(15,23,42,.09)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--bg);font-family:"IRANYekan","Vazirmatn",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%}button,input{font:inherit}.container{width:min(1180px,calc(100% - 40px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.topbar{min-height:78px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:11px}.brand i{width:43px;height:43px;display:grid;place-items:center;color:#fff;background:linear-gradient(145deg,var(--blue2),var(--blue));border-radius:14px;box-shadow:0 10px 25px rgba(37,99,235,.25)}.brand svg{width:31px}.brand>span{display:grid;line-height:1.1}.brand strong{font-size:22px}.brand small{margin-top:5px;color:var(--muted);font-size:11px}.search{margin-inline:auto;width:min(460px,46vw);height:46px;padding-inline:14px 6px;display:flex;align-items:center;gap:9px;background:#f1f5f9;border:1px solid transparent;border-radius:14px}.search:focus-within{background:#fff;border-color:#93c5fd;box-shadow:0 0 0 4px #dbeafe}.search input{min-width:0;flex:1;border:0;outline:0;background:transparent}.search button{height:34px;padding-inline:15px;color:#fff;background:var(--blue);border:0;border-radius:10px;cursor:pointer}.langs{display:flex;gap:4px;padding:4px;background:#f1f5f9;border-radius:11px}.langs a{min-width:34px;padding:5px 8px;color:var(--muted);font-size:12px;text-align:center;border-radius:8px}.langs a.active{color:#fff;background:var(--blue)}.catnav{border-top:1px solid #f1f5f9}.catnav>div{min-height:47px;display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none}.catnav a{flex:none;padding:8px 14px;color:#475569;font-size:14px;border-radius:10px}.catnav a:hover,.catnav a.active{color:#1d4ed8;background:var(--soft)}.mobile{display:none;position:relative}.mobile summary{width:42px;height:42px;display:grid;place-content:center;gap:5px;list-style:none;border:1px solid var(--line);border-radius:12px}.mobile summary::-webkit-details-marker{display:none}.mobile summary b{width:20px;height:2px;background:var(--ink)}.mobile>div{position:absolute;inset-inline-end:0;top:50px;width:min(330px,calc(100vw - 28px));padding:15px;display:grid;gap:5px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.mobile form{display:flex;gap:5px}.mobile input{min-width:0;flex:1;padding:9px;border:1px solid var(--line);border-radius:9px}.mobile button{color:#fff;background:var(--blue);border:0;border-radius:9px}.mobile>div>a{padding:8px}.mobile section{display:flex;gap:6px;padding-top:8px;border-top:1px solid var(--line)}.mobile section a{flex:1;padding:5px;text-align:center;background:#f1f5f9;border-radius:7px}.mobile section a.active{color:#fff;background:var(--blue)}
.hero{overflow:hidden;color:#fff;background:linear-gradient(125deg,#0f3d91 0%,var(--blue) 55%,var(--blue2) 100%)}.hero-inner{min-height:310px;display:flex;align-items:center;justify-content:space-between;gap:40px}.hero-inner>div{max-width:700px;padding-block:60px}.hero span{display:inline-flex;padding:4px 11px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.24);border-radius:999px;font-size:13px}.hero h1{margin:11px 0 0;font-size:clamp(35px,5vw,58px);line-height:1.2}.hero p{max-width:650px;margin:16px 0 0;color:#dbeafe;font-size:18px}.hero svg{width:130px;margin-inline:50px;color:#fff;filter:drop-shadow(0 18px 30px rgba(15,23,42,.2))}.content{padding-block:62px 84px}.section-title{margin-bottom:28px;display:flex;justify-content:space-between;align-items:end;gap:20px}.section-title h2{margin:0;font-size:32px}.section-title p{margin:5px 0 0;color:var(--muted)}.section-title>a{padding:8px 13px;color:var(--blue);background:var(--soft);border-radius:10px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.card{overflow:hidden;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:23px;transition:.25s}.card:hover{transform:translateY(-5px);border-color:#bfdbfe;box-shadow:var(--shadow)}.card-media{aspect-ratio:16/10;overflow:hidden;display:block;background:#eaf2ff}.card-media img{width:100%;height:100%;display:block;object-fit:cover;transition:.4s}.card:hover img{transform:scale(1.035)}.placeholder{width:100%;height:100%;display:grid;place-items:center;color:#60a5fa;background:linear-gradient(135deg,#eff6ff,#dbeafe);font-size:72px;font-weight:800}.card-body{height:100%;padding:21px;display:flex;flex-direction:column}.meta{margin-bottom:10px;display:flex;justify-content:space-between;align-items:center;gap:8px;color:var(--muted);font-size:12px}.badge{display:inline-flex;width:fit-content;padding:4px 9px;color:#1d4ed8;background:var(--soft);border-radius:999px;font-size:12px;font-weight:700}.card h2{margin:0;font-size:20px;line-height:1.55}.card h2 a:hover{color:var(--blue)}.card p{margin:10px 0 18px;color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.read{margin-top:auto;display:flex;align-items:center;gap:7px;color:var(--blue);font-size:14px;font-weight:700}.empty{grid-column:1/-1;min-height:220px;display:grid;place-items:center;color:var(--muted);background:#fff;border:1px dashed #cbd5e1;border-radius:23px}.pagination{margin-top:36px}
.article-container{max-width:960px;padding-block:28px 80px}.crumb{margin-bottom:32px;display:flex;flex-wrap:wrap;gap:9px;color:var(--muted);font-size:13px}.crumb a:hover{color:var(--blue)}.crumb span:last-child{max-width:360px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.article-head{max-width:820px;margin:auto;text-align:center}.article-head .badge{margin:auto}.article-head h1{margin:15px 0;font-size:clamp(32px,5vw,52px);line-height:1.35}.article-head>p{max-width:750px;margin:auto;color:var(--muted);font-size:18px}.article-meta{margin-top:18px;display:flex;justify-content:center;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:13px}.cover{margin:38px 0 44px;overflow:hidden;background:#e2e8f0;border-radius:27px;box-shadow:var(--shadow)}.cover img{width:100%;max-height:680px;display:block;object-fit:cover}.article-body{max-width:780px;margin:auto;padding:34px 42px;background:#fff;border:1px solid var(--line);border-radius:23px;font-size:17px;line-height:2}.article-body>:first-child{margin-top:0}.article-body>:last-child{margin-bottom:0}.article-body h2,.article-body h3{line-height:1.55;scroll-margin-top:150px}.article-body h2{margin:42px 0 15px;padding-bottom:10px;font-size:27px;border-bottom:1px solid var(--line)}.article-body h3{margin:30px 0 12px;font-size:22px}.article-body p{margin:0 0 19px}.article-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.article-body ul,.article-body ol{padding-inline-start:25px}.article-body blockquote{margin:28px 0;padding:18px 22px;color:#1e3a8a;background:var(--soft);border-inline-start:4px solid var(--blue);border-radius:12px}.article-body img{width:auto;max-width:100%;height:auto;margin:26px auto;display:block;border-radius:16px}.article-body table{width:100%;margin:28px 0;border-collapse:separate;border-spacing:0;font-size:14px;border:1px solid var(--line);border-radius:13px}.article-body th,.article-body td{padding:12px 14px;text-align:start;border-bottom:1px solid var(--line);border-inline-end:1px solid var(--line)}.article-body th{color:#1e3a8a;background:var(--soft)}.article-body tr:last-child td{border-bottom:0}.back{max-width:780px;margin:28px auto 0;color:var(--blue);font-weight:700}
footer{color:#cbd5e1;background:#07111f}.footer-main{padding-block:42px 30px;display:flex;justify-content:space-between;gap:30px}.footer-main strong{color:#fff;font-size:25px}.footer-main p{margin:5px 0 0;color:#94a3b8}.footer-main nav{display:flex;align-items:center;gap:20px}.copyright{padding-block:15px;color:#64748b;font-size:12px;border-top:1px solid #172033}
@media(max-width:980px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero svg{margin-inline:10px}.search{flex:1;width:auto}}@media(max-width:720px){.container{width:calc(100% - 28px)}.topbar{min-height:68px}.brand i{width:39px;height:39px}.brand small,.search,.langs,.catnav{display:none}.mobile{display:block;margin-inline-start:auto}.hero-inner{min-height:280px}.hero-inner>div{padding-block:46px}.hero svg{display:none}.hero h1{font-size:36px}.hero p{font-size:15px}.content{padding-block:43px 60px}.grid{grid-template-columns:1fr;gap:18px}.section-title{align-items:start}.card{border-radius:19px}.article-container{padding-block:20px 58px}.article-head{text-align:start}.article-head .badge{margin:0}.article-head h1{font-size:32px}.article-head>p{font-size:16px}.article-meta{justify-content:start}.cover{margin:28px 0 30px;border-radius:18px}.article-body{padding:24px 20px;border-radius:18px;font-size:16px}.article-body h2{font-size:23px}.article-body h3{font-size:20px}.article-body table{display:block;overflow-x:auto;white-space:nowrap}.footer-main{flex-direction:column}}@media(max-width:420px){.hero h1{font-size:31px}.section-title{display:block}.section-title>a{display:inline-block;margin-top:10px}.card-body{padding:18px}.article-head h1{font-size:28px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}