@font-face{font-family:"Avenir Next Cyr";src:local("Avenir Next Cyr"),local("Avenir Next");font-display:swap}
:root{
 --blue:#147fc1; --blue-dark:#075cae; --orange:#f2a83b; --orange-hot:#ff5a00;
 --nav:#e8e8e8; --sidebar:#f3f3f3; --text:#242424; --footer:#384359;
 --line:#262626; --white:#fff; --shadow:0 10px 28px rgba(0,0,0,.08);
 --radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--text);font-family:"Avenir Next Cyr","Avenir Next",Arial,sans-serif;font-size:16px;line-height:1.35}
a{color:inherit;text-decoration:none}
button{font:inherit}
.site-header{background:#fff}
.top-header{background:var(--blue);color:#fff;padding:14px clamp(16px,2vw,32px)}
.brand{min-height:126px;display:grid;grid-template-columns:minmax(180px,1fr) minmax(330px,1.8fr) minmax(210px,.8fr) minmax(230px,1fr);gap:22px;align-items:center;max-width:1500px;margin:auto}
.brand-art{height:100%;min-height:95px;border-right:1px solid rgba(255,255,255,.25);position:relative;overflow:hidden}
.brand-art:before,.brand-art:after,.brand-art span{content:"";position:absolute;border:1px solid rgba(255,255,255,.8);transform:skewY(-18deg);width:150px;height:75px}
.brand-art:before{left:10px;top:20px}.brand-art:after{left:50px;top:0}.brand-art span:nth-child(1){left:0;top:50px}.brand-art span:nth-child(2){left:80px;top:35px}.brand-art span:nth-child(3){left:35px;top:65px}
.brand-title{font-size:clamp(24px,2.3vw,36px);line-height:1.25;letter-spacing:.3px}
.brand-title strong{display:block}
.brand-contact{display:flex;flex-direction:column;gap:3px;font-size:16px;line-height:1.15}
.brand-contact span{font-size:18px}
.mephi-mark{display:flex;align-items:center;justify-content:flex-end;gap:12px;white-space:nowrap}
.atom{font-size:52px}.mephi{font-size:14px;line-height:1.05}.mephi b{font-size:32px}.anniv{font-size:70px;font-weight:800;line-height:1}
.mobile-menu-btn{display:none}
.main-nav{background:var(--nav);border-bottom:1px solid #ddd}
.nav-inner{max-width:1500px;margin:auto;display:grid;grid-template-columns:repeat(6,1fr)}
.nav-item{position:relative}
.nav-button{width:100%;min-height:82px;padding:12px 18px;border:0;background:transparent;font-weight:600;font-size:clamp(15px,1.25vw,20px);cursor:pointer}
.nav-button span{margin-left:9px}
.submenu{display:none;position:absolute;z-index:50;top:100%;left:8px;right:8px;background:#fff;border:1px solid #ddd;box-shadow:var(--shadow);border-radius:0 0 12px 12px;overflow:hidden}
.nav-item.open .submenu{display:block}
.submenu a{display:block;padding:12px 14px;font-size:15px;border-bottom:1px solid #eee}
.submenu a:hover{background:#f5f8fb;color:var(--blue-dark)}
.page-shell{max-width:1500px;margin:auto;display:grid;grid-template-columns:270px minmax(0,1fr);min-height:800px}
.sidebar{background:var(--sidebar);padding:18px 20px 30px}
.side-link{display:flex;align-items:center;justify-content:center;text-align:center;min-height:70px;padding:10px 4px;border-bottom:2px solid #333;color:#0066bf;font-weight:700;font-size:18px;line-height:1.12;transition:.2s}
.side-link:hover{background:#fff;transform:translateX(3px)}
.side-access{justify-content:flex-start;gap:12px;text-align:left;border-bottom:0;font-size:17px}
.side-icon{display:grid;place-items:center;width:58px;height:48px;border-radius:14px;background:#ddd;color:#1265aa;font-size:34px}
.side-separator{height:2px;background:#333;margin:0 0 2px}
.hotline{margin:28px 0 22px;padding:10px;border-top:7px solid #aaa;display:flex;align-items:center;justify-content:center;gap:10px;color:#fff;background:#c9151c;border-radius:45px;font-weight:800}
.hotline:first-letter{font-size:30px}
.side-promo{margin:20px 0;padding:14px;background:#075db5;color:#fff;font-weight:800;text-align:center;line-height:1.15}
.side-promo small{font-size:12px}
.qr-box{text-align:center;padding:20px 4px;border-top:2px solid #333;border-bottom:2px solid #333}
.fake-qr{width:145px;height:145px;margin:0 auto 12px;background:repeating-conic-gradient(#111 0 8deg,#fff 8deg 16deg);border:8px solid #fff;box-shadow:0 0 0 1px #ccc}
.side-logo{text-align:center;padding:24px 5px;border-bottom:2px solid #333;color:#e31b23;font-weight:800}
.side-logo b{font-size:45px;color:#0081c9}
.corruption{color:#111;font-size:18px}.corruption span{color:#36608d;letter-spacing:2px}
.content{padding:34px clamp(18px,4vw,70px) 55px;min-width:0}
.quick-actions{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:50px}
.action-tab{background:var(--orange);color:#fff;font-weight:800;font-size:20px;padding:13px 18px;position:relative}
.action-tab:after{content:"";position:absolute;bottom:-12px;left:50%;transform:translateX(-50%);border:12px solid transparent;border-top-color:var(--orange);border-bottom:0}
.important-card{max-width:900px;margin:0 auto 42px;border:1px solid var(--orange-hot);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);background:#fff}
.important-body{min-height:330px;display:grid;grid-template-columns:1.1fr .9fr 150px;align-items:center}
.important-accent{height:0}
.important-copy{padding:38px}
.badge{display:inline-block;background:var(--orange-hot);color:#fff;padding:12px 22px;border-radius:8px;font-size:22px;font-weight:800;margin-bottom:20px}
.important-copy h1{color:#075cae;font-size:48px;line-height:1;margin:0 0 10px}
.important-copy h2{color:#075cae;font-size:31px;line-height:1.03;margin:0;font-weight:500}
.event-meta{display:flex;flex-direction:column;gap:18px}
.event-meta>div{display:grid;grid-template-columns:58px 1fr;gap:10px;align-items:center}
.meta-icon{width:50px;height:50px;border-radius:50%;display:grid;place-items:center;background:#eef3fb;color:#0767b7;font-size:28px}
.event-meta p{margin:0;border-bottom:1px solid #ddd;padding-bottom:8px}.event-meta small{display:block;font-weight:600}.event-meta b{display:block;color:#075cae;font-size:19px}
.exclamation{height:230px;width:230px;border-radius:50%;background:#eff3fb;color:#fff;display:grid;place-items:center;font-size:160px;font-weight:800}
.admission-link{max-width:900px;margin:0 auto 50px;text-align:right;color:var(--orange-hot);font-size:23px}
.news-section{border-top:1px solid #222;padding-top:26px}
.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:20px}.section-heading h2{margin:0;color:var(--blue-dark);font-size:28px}.section-heading a{color:var(--blue-dark);font-weight:700}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:30px 45px}
.news-card{display:grid;grid-template-columns:90px 1fr;gap:14px;align-items:start;min-width:0}
.news-thumb{width:78px;height:78px;display:grid;place-items:center;background:linear-gradient(145deg,#eaf2ff,#fff);color:#f2a83b;font-size:42px;transform:rotate(-7deg);box-shadow:4px 5px 7px rgba(0,0,0,.15)}
.news-card h3{color:#0065bd;font-size:20px;line-height:1.13;text-align:center;margin:8px 0 14px}
.news-meta{background:#eee;padding:4px 10px;display:flex;justify-content:space-between;font-size:13px;gap:10px}.news-meta a{color:#0065bd}
.partners{border-top:2px solid #222;background:#fff;padding:40px 24px 30px}
.partners-inner{max-width:1450px;margin:auto}.partners h2{font-size:24px;margin:0 0 30px}
.partner-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:35px 50px;align-items:center}
.partner-grid div{text-align:center;color:#707070;font-weight:800;font-size:17px;min-height:65px;display:grid;place-items:center;filter:grayscale(1)}
.site-footer{background:var(--footer);color:#fff}
.footer-main{max-width:1500px;margin:auto;min-height:245px;padding:35px 4%;display:grid;grid-template-columns:1fr 2fr;align-items:start;gap:30px}
.socials{display:flex;gap:16px}.socials a{display:grid;place-items:center;width:48px;height:48px;border-radius:10px;background:#fff;color:var(--footer);font-weight:900}
.footer-contact{display:flex;flex-direction:column;text-align:right;gap:4px;font-size:18px}.footer-contact strong{font-size:24px}.footer-bottom{border-top:2px solid #ddd;display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:28px 7%;text-align:center;font-size:25px;font-weight:800}
.to-top{position:fixed;right:20px;bottom:20px;width:46px;height:46px;border:0;border-radius:50%;background:var(--orange-hot);color:#fff;font-size:24px;display:none;cursor:pointer;box-shadow:var(--shadow)}
.to-top.show{display:block}
.mobile-overlay{display:none}

@media (max-width:1100px){
 .brand{grid-template-columns:110px 1fr 180px;min-height:110px}.brand-contact{display:none}.anniv{font-size:55px}.nav-button{font-size:14px;min-height:72px;padding:8px}
 .page-shell{grid-template-columns:220px minmax(0,1fr)}.sidebar{padding:12px}.side-link{font-size:15px}.content{padding:28px 28px}
 .important-body{grid-template-columns:1fr 1fr 100px}.important-copy{padding:28px}.important-copy h1{font-size:40px}.important-copy h2{font-size:25px}.exclamation{width:150px;height:150px;font-size:100px}
}
@media (max-width:760px){
 body{font-size:15px}.top-header{padding:10px 14px}.brand{min-height:76px;grid-template-columns:1fr auto;gap:10px}.brand-art{display:none}.brand-title{font-size:18px}.mephi-mark{gap:5px}.atom{font-size:28px}.mephi{font-size:8px}.mephi b{font-size:20px}.anniv{font-size:35px}
 .mobile-menu-btn{display:flex;align-items:center;gap:8px;border:0;background:transparent;color:#fff;cursor:pointer;font-weight:800}.mobile-menu-btn span{display:block;width:22px;height:2px;background:#fff}
 .main-nav{position:fixed;inset:0 auto 0 0;width:min(88vw,370px);z-index:100;transform:translateX(-102%);transition:transform .25s;overflow:auto;box-shadow:10px 0 30px rgba(0,0,0,.2)}.main-nav.open{transform:none}
 .nav-inner{display:block;padding:70px 12px 20px}.nav-item{border-bottom:1px solid #ccc}.nav-button{min-height:52px;text-align:left;font-size:16px;padding:12px}.submenu{position:static;box-shadow:none;border:0;border-radius:0;background:#f8f8f8}.submenu a{padding:10px 18px}
 .mobile-overlay{display:block;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:90;opacity:0;pointer-events:none;transition:.25s}.mobile-overlay.show{opacity:1;pointer-events:auto}
 .page-shell{display:block}.sidebar{display:none}.content{padding:22px 14px 40px}.quick-actions{flex-direction:column;align-items:stretch;margin-bottom:35px}.action-tab{text-align:center;font-size:16px}
 .important-card{margin-bottom:28px}.important-body{grid-template-columns:1fr;min-height:0}.important-copy{padding:24px 22px 10px}.important-copy h1{font-size:40px}.important-copy h2{font-size:27px}.badge{font-size:17px;padding:9px 16px}.event-meta{padding:10px 22px 22px}.event-meta>div{grid-template-columns:48px 1fr}.meta-icon{width:42px;height:42px;font-size:23px}.exclamation{display:none}
 .admission-link{font-size:18px;margin-bottom:32px}.news-grid{grid-template-columns:1fr;gap:22px}.news-card{grid-template-columns:70px 1fr}.news-thumb{width:62px;height:62px;font-size:32px}.news-card h3{font-size:17px}.news-meta{font-size:12px}
 .partners{padding:28px 16px}.partner-grid{grid-template-columns:repeat(2,1fr);gap:20px}.partner-grid div{font-size:13px}
 .footer-main{grid-template-columns:1fr;min-height:0;padding:28px 18px}.footer-contact{text-align:left}.footer-contact strong{font-size:19px}.footer-contact span{font-size:14px}.footer-bottom{grid-template-columns:1fr;font-size:17px;padding:22px 18px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}