:root{
  --blue:#0ea5e9;--blue2:#075985;--blue-soft:#38bdf8;
  --grad:linear-gradient(120deg,#0ea5e9 0%,#075985 100%);
  --ink:#0b2136;--ink2:#0e2a44;--ink3:#153a5c;
  --paper:#e8f4fd;--card:#fff;--line:#e7e9ee;--muted:#8b909c;--text:#1d2027;
  --r:18px;--shadow:0 10px 34px rgba(14,15,19,.10);--shadow-lg:0 24px 60px rgba(14,15,19,.20);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Vazirmatn',Tahoma,sans-serif;background:var(--paper);color:var(--text);line-height:2;font-size:15px;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.wrap{max-width:1280px;margin:0 auto;padding:0 20px}

/* --- EMPTY IMAGE PLACEHOLDERS (نمایش جای تصویرها به‌صورت خالی) --- */
img{
  background:#d7e6f2;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%238fb2cd'%3E%3Cpath d='M21 3H3a2 2 0 00-2 2v14a2 2 0 002 2h18a2 2 0 002-2V5a2 2 0 00-2-2zm0 16H3V5h18v14zM8.5 11l-3.5 4.5h14L14 9l-3.5 4.5z'/%3E%3Ccircle cx='7.5' cy='8' r='1.6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center;background-size:38px;color:transparent;min-height:20px;
}

.topbar{background:var(--ink);color:#aeb4c0;font-size:12.5px}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:40px}
.topbar .social{display:flex;gap:7px}
.topbar .social a{width:27px;height:27px;border-radius:8px;display:grid;place-items:center;background:rgba(255,255,255,.07);transition:.25s}
.topbar .social a:hover{background:var(--blue);color:#fff}
.topbar .social svg{width:14px;height:14px;fill:currentColor}
.topbar .date{display:flex;align-items:center;gap:6px}
.topbar .date svg{width:14px;height:14px;fill:var(--blue-soft)}
.nav{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:14px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px}
.brand .badge{width:52px;height:52px;border-radius:50%;background:#fff;border:2px solid var(--line);padding:3px;flex:none;box-shadow:0 4px 14px rgba(14,165,233,.16)}
.brand .badge img{width:100%;height:100%;object-fit:contain;border-radius:50%}
.brand .tt b{display:block;font-size:14.5px;font-weight:900;line-height:1.5;color:var(--ink)}
.brand .tt span{font-size:10px;letter-spacing:1.2px;color:var(--muted);font-weight:600}
.menu{display:flex;align-items:center;gap:2px;margin-inline-start:auto}
.menu a{padding:10px 13px;font-size:14px;font-weight:700;color:#3a3f4a;border-radius:10px;transition:.2s;white-space:nowrap}
.menu a:hover{color:var(--blue);background:rgba(14,165,233,.07)}
.menu a.active{color:#fff;background:var(--grad)}
.nav .ico-btn{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--ink);color:#fff;cursor:pointer}
.nav .ico-btn svg{width:18px;height:18px;fill:currentColor}
.burger{display:none}

/* --- FEDERATION DROPDOWN --- */
.menu .has-sub{position:relative}
.menu .sub-toggle{display:flex;align-items:center;gap:5px;padding:10px 13px;font-size:14px;font-weight:700;color:#3a3f4a;border-radius:10px;cursor:pointer;white-space:nowrap;transition:.2s}
.menu .sub-toggle svg{width:14px;height:14px;fill:currentColor;transition:.2s}
.menu .has-sub:hover .sub-toggle{color:var(--blue);background:rgba(14,165,233,.07)}
.menu .has-sub:hover .sub-toggle svg{transform:rotate(180deg)}
.menu .sub-toggle.active{color:#fff;background:var(--grad)}
.menu .submenu{position:absolute;top:calc(100% + 6px);inset-inline-end:0;min-width:200px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);padding:8px;display:flex;flex-direction:column;gap:2px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.22s;z-index:90}
.menu .has-sub:hover .submenu{opacity:1;visibility:visible;transform:none}
.menu .submenu a{padding:10px 13px;border-radius:9px;font-size:13.5px;font-weight:700;color:#3a3f4a;white-space:nowrap;transition:.18s}
.menu .submenu a:hover{background:rgba(14,165,233,.08);color:var(--blue)}
.menu .submenu a.active{background:var(--grad);color:#fff}

.ahero{background:var(--ink);color:#fff;position:relative;overflow:hidden;padding:44px 0 40px}
.ahero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 15%,rgba(14,165,233,.4),transparent 45%),radial-gradient(circle at 8% 90%,rgba(14,165,233,.18),transparent 40%)}
.ahero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(125deg,rgba(255,255,255,.025) 0 2px,transparent 2px 30px)}
.ahero .wrap{position:relative}
.crumb{font-size:12.5px;color:#bcc1cd;margin-bottom:14px}
.crumb a:hover{color:#fff}.crumb b{color:#7dd3fc}
.cat-chip{display:inline-block;background:var(--grad);color:#fff;font-size:12px;font-weight:800;padding:5px 15px;border-radius:50px;margin-bottom:14px}
.ahero h1{font-size:29px;font-weight:900;line-height:1.7;max-width:960px}
.ameta{display:flex;flex-wrap:wrap;gap:22px;margin-top:18px;font-size:13px;color:#c6ccd8}
.ameta .m{display:flex;align-items:center;gap:7px}
.ameta .m svg{width:15px;height:15px;fill:var(--blue-soft)}
.ameta .print{margin-inline-start:auto;background:rgba(255,255,255,.08);border:0;color:#e6eaf1;font-family:inherit;font-size:13px;font-weight:700;padding:7px 15px;border-radius:50px;cursor:pointer;display:flex;align-items:center;gap:7px;transition:.2s}
.ameta .print:hover{background:var(--blue)}
.ameta .print svg{width:15px;height:15px;fill:currentColor}
.layout{display:grid;grid-template-columns:1fr 340px;gap:34px;padding:44px 0 56px;align-items:start}
.article{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:34px 38px;overflow:hidden}
.lead-q{position:relative;background:linear-gradient(120deg,#f0f8fe,#e3f2fd);border-radius:16px;padding:26px 30px;margin-bottom:30px;border-inline-start:5px solid var(--blue)}
.lead-q svg{width:34px;height:34px;fill:var(--blue);opacity:.55;margin-bottom:6px}
.lead-q p{font-size:16px;font-weight:700;color:var(--ink3);line-height:2.1;margin:0}
.article p{margin-bottom:20px;color:#2c333d;font-size:15px;text-align:justify}
/* tweet embed */
.tweet{border:1px solid var(--line);border-radius:16px;padding:20px 22px;margin:6px 0 28px;background:#fbfdff;box-shadow:0 6px 20px rgba(14,15,19,.06)}
.tweet .hd{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.tweet .av{width:48px;height:48px;border-radius:50%;background:var(--grad);display:grid;place-items:center;flex:none}
.tweet .av svg{width:26px;height:26px;fill:#fff}
.tweet .who b{display:block;font-size:15px;font-weight:800;color:var(--ink)}
.tweet .who span{font-size:12.5px;color:var(--muted)}
.tweet .x{margin-inline-start:auto;width:26px;height:26px;fill:#1d2027}
.tweet .txt{font-size:16px;font-weight:700;color:var(--ink3);line-height:2;direction:ltr;text-align:left}
.tweet .txt .fa{direction:rtl;text-align:right;display:block;margin-top:6px;color:#2c333d;font-weight:600;font-size:14px}
.tweet .ft{display:flex;gap:22px;margin-top:14px;padding-top:12px;border-top:1px solid var(--line);color:var(--muted);font-size:12.5px}
.tweet .ft span{display:flex;align-items:center;gap:6px}
.tweet .ft svg{width:15px;height:15px;fill:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px;padding-top:22px;border-top:1px dashed var(--line)}
.tags a{background:#f1f7fd;color:var(--blue2);font-size:12.5px;font-weight:700;padding:6px 15px;border-radius:50px;transition:.2s}
.tags a:hover{background:var(--grad);color:#fff}
.share{display:flex;align-items:center;gap:10px;margin-top:24px;flex-wrap:wrap}
.share span{font-weight:800;color:var(--ink);font-size:14px}
.share a{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;color:#fff;transition:.2s}
.share a:hover{transform:translateY(-3px)}
.share .tg{background:#229ED9}.share .wa{background:#25D366}.share .ig{background:#E1306C}.share .tw{background:#1d2027}.share .cp{background:var(--blue2)}
.share a svg{width:19px;height:19px;fill:currentColor}
.side .box{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:22px 22px 8px;margin-bottom:24px}
.side h3{font-size:16px;font-weight:900;color:var(--ink);margin-bottom:18px;position:relative;padding-inline-start:14px}
.side h3::before{content:"";position:absolute;inset-inline-start:0;top:3px;width:5px;height:20px;background:var(--grad);border-radius:4px}
.rn{display:flex;gap:13px;padding-bottom:16px;margin-bottom:16px;border-bottom:1px solid var(--line)}
.rn:last-child{border-bottom:0}
.rn .th{width:82px;height:62px;border-radius:11px;overflow:hidden;flex:none;position:relative;background:#000}
.rn .th img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.rn .tx b{font-size:13.5px;font-weight:700;color:var(--ink);line-height:1.7;display:block;transition:.2s}
.rn:hover .tx b{color:var(--blue)}
.rn .tx .d{font-size:11.5px;color:var(--muted);margin-top:5px;display:flex;align-items:center;gap:5px}
.rn .tx .d svg{width:12px;height:12px;fill:var(--blue)}
.side .tagcloud{display:flex;flex-wrap:wrap;gap:8px;padding-bottom:14px}
.side .tagcloud a{background:#f1f7fd;color:var(--blue2);font-size:12px;font-weight:700;padding:6px 13px;border-radius:50px;transition:.2s}
.side .tagcloud a:hover{background:var(--grad);color:#fff}
.side .cta{background:var(--grad);color:#fff;border-radius:18px;padding:26px 24px;text-align:center;box-shadow:0 14px 30px rgba(14,165,233,.28)}
.side .cta svg{width:40px;height:40px;fill:#fff;opacity:.9;margin-bottom:8px}
.side .cta b{display:block;font-size:16px;font-weight:900;margin-bottom:6px}
.side .cta p{font-size:12.5px;color:#e3f4ff;margin-bottom:14px;line-height:1.9}
.side .cta a{display:inline-block;background:#fff;color:var(--blue2);font-weight:800;font-size:13px;padding:9px 22px;border-radius:50px}
.more-sec{padding:0 0 60px}
.more-head{display:flex;align-items:center;gap:14px;margin-bottom:24px}
.more-head h2{font-size:22px;font-weight:900;color:var(--ink)}
.more-head .ln{flex:1;height:2px;background:linear-gradient(90deg,var(--line),transparent)}
.more-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ncard{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);transition:.28s;display:flex;flex-direction:column}
.ncard:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.ncard .pic{position:relative;aspect-ratio:16/10;overflow:hidden;background:#000}
.ncard .pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:.8s}
.ncard:hover .pic img{transform:scale(1.08)}
.ncard .bd{padding:16px 18px}
.ncard .dt{font-size:12px;color:var(--muted);font-weight:700;margin-bottom:7px;display:flex;align-items:center;gap:6px}
.ncard .dt svg{width:13px;height:13px;fill:var(--blue)}
.ncard h4{font-size:15px;font-weight:800;color:var(--ink);line-height:1.7;transition:.2s}
.ncard:hover h4{color:var(--blue)}
footer{background:var(--ink2);color:#aeb4c0;padding:54px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:30px}
.foot-brand .b{display:flex;align-items:center;gap:13px;margin-bottom:16px}
.foot-brand .b img{width:62px;height:62px;background:#fff;border-radius:50%;padding:4px}
.foot-brand .b b{font-size:15px;color:#fff;font-weight:900;line-height:1.6}
footer p,footer li{font-size:13.5px;line-height:2;color:#9aa0ac}
footer h4{color:#fff;font-size:15.5px;font-weight:800;margin-bottom:16px;position:relative;padding-bottom:11px}
footer h4::after{content:"";position:absolute;bottom:0;inset-inline-start:0;width:36px;height:3px;background:var(--grad);border-radius:3px}
footer ul{list-style:none}
footer ul li a:hover{color:#fff}
.fcontact .row{display:flex;align-items:center;gap:9px;margin-bottom:9px;direction:ltr;justify-content:flex-end}
.fcontact .row svg{width:16px;height:16px;fill:var(--blue-soft);flex:none}
.foot-bar{border-top:1px solid rgba(255,255,255,.08);margin-top:42px;padding:18px 0;font-size:12.5px;text-align:center;color:#8b909c}
@media(max-width:960px){.layout{grid-template-columns:1fr}.more-grid{grid-template-columns:1fr 1fr}.foot-grid{grid-template-columns:1fr}}
@media(max-width:680px){
  .menu{display:none}
  .burger{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--ink);color:#fff;margin-inline-start:auto}
  .burger svg{width:22px;height:22px;fill:#fff}
  .article{padding:24px 20px}.ahero h1{font-size:23px}.more-grid{grid-template-columns:1fr}
  .menu .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:2px 0 2px 14px;min-width:auto}
}

/* logo image: no placeholder */
img.logo{background:none;background-image:none;min-height:0}

/* profile button */
.nav .profile-btn{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#eef4f8;color:#0ea5e9;cursor:pointer;transition:.2s;flex:none}
.nav .profile-btn:hover{background:var(--grad);color:#fff}
.nav .profile-btn svg{width:21px;height:21px;fill:currentColor}

/* brand alignment fix */
.brand{align-items:center}
.brand .tt{display:flex;flex-direction:column;justify-content:center}
.brand .tt span{white-space:nowrap}