:root{
  --ink:#1c2540; --ink-soft:#3d4767; --paper:#f4f6fa; --paper-card:#ffffff;
  --line:#e2e6ee; --brand:#342a83; --brand-dark:#281f66; --green:#009843; --green-dark:#007a36;
  --amber:#342a83; --blue:#342a83; --red:#c23b3b;
  --muted:#7e849a; --shadow:0 1px 2px rgba(28,37,64,.05),0 8px 24px rgba(28,37,64,.07);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Inter","Segoe UI",system-ui,-apple-system,Roboto,sans-serif;
  background:var(--paper);color:var(--ink);line-height:1.5;-webkit-font-smoothing:antialiased}
.ui,input,select,textarea,button{font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
h1,h2,h3,.brand .mark,.topbar .mark{font-family:"Poppins","Inter",system-ui,sans-serif}
button{cursor:pointer}
input,select,textarea{font-size:14px}

#login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(900px 500px at 80% -10%,rgba(0,152,67,.10),transparent 55%),
             radial-gradient(700px 500px at 10% 110%,rgba(52,42,131,.10),transparent 55%),var(--paper)}
.login-card{width:100%;max-width:400px;background:var(--paper-card);border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow);padding:36px 32px}
.brand{display:flex;flex-direction:column;align-items:center;text-align:center}
.brand .logo{width:76px;height:76px;object-fit:contain;margin-bottom:14px}
.brand .mark{font-size:26px;font-weight:600;letter-spacing:.01em;color:var(--brand)}
.brand .mark b{color:var(--green);font-weight:700}
.login-sub{font-family:"Inter",sans-serif;color:var(--muted);font-size:13px;margin:6px 0 26px;text-align:center}
label.fl{display:block;font-family:"Inter",sans-serif;font-size:12px;font-weight:600;
  text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);margin:14px 0 6px}
.field{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:9px;background:#fff;
  color:var(--ink);outline:none;transition:border-color .15s,box-shadow .15s}
.field:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(52,42,131,.14)}
.btn{border:none;border-radius:9px;padding:11px 16px;font-weight:600;font-size:14px;
  background:var(--brand);color:#fff;transition:background .15s,transform .05s}
.btn:hover{background:var(--brand-dark)}.btn:active{transform:translateY(1px)}
.btn.block{width:100%;margin-top:20px}
.btn.amber{background:var(--green)}.btn.amber:hover{background:var(--green-dark)}
.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--line)}
.btn.ghost:hover{background:#eef0f6}
.btn.sm{padding:7px 12px;font-size:13px;border-radius:8px}
.btn.danger{background:var(--red)}.btn.danger:hover{background:#a32f2f}
.btn.green{background:var(--green)}.btn.green:hover{background:var(--green-dark)}
.demo-users{margin-top:22px;border-top:1px dashed var(--line);padding-top:16px}
.demo-users p{font-family:"Inter",sans-serif;font-size:12px;color:var(--muted);margin-bottom:8px}
.chip{display:inline-block;font-family:"Inter",sans-serif;font-size:12px;background:#eef0f6;
  border:1px solid var(--line);border-radius:20px;padding:5px 11px;margin:0 6px 6px 0;cursor:pointer;color:var(--ink-soft)}
.chip:hover{border-color:var(--brand);color:var(--brand)}

#app{display:none;min-height:100vh}
.topbar{height:62px;background:var(--paper-card);border-bottom:1px solid var(--line);display:flex;
  align-items:center;justify-content:space-between;padding:0 22px;position:sticky;top:0;z-index:30}
.topbar .brand-row{display:flex;align-items:center;gap:11px}
.topbar .logo{width:34px;height:34px;object-fit:contain}
.topbar .mark{font-size:19px;font-weight:600;letter-spacing:.01em;color:var(--brand)}
.topbar .mark b{color:var(--green);font-weight:700}
.who{display:flex;align-items:center;gap:12px}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;display:flex;
  align-items:center;justify-content:center;font-size:14px;font-weight:600}
.who .meta{text-align:right;line-height:1.2}
.who .meta .nm{font-size:13px;font-weight:600}
.who .meta .rl{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.layout{display:flex;align-items:flex-start}
.side{width:210px;flex-shrink:0;padding:20px 14px;position:sticky;top:62px;height:calc(100vh - 62px);border-right:1px solid var(--line)}
.nav-item{font-size:14px;display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:9px;
  color:var(--ink-soft);margin-bottom:3px;cursor:pointer}
.nav-item:hover{background:#eef0f6}
.nav-item.active{background:var(--brand);color:#fff}
.nav-item .ic{width:18px;text-align:center}
.main{flex:1;padding:30px 36px;max-width:1100px}
.page-head{margin-bottom:24px}
.page-head h1{font-size:30px;font-weight:700;letter-spacing:-.02em}
.page-head p{font-family:"Inter",sans-serif;color:var(--muted);font-size:14px;margin-top:4px}
.eyebrow{font-family:"Inter",sans-serif;font-size:12px;font-weight:600;text-transform:uppercase;
  letter-spacing:.08em;color:var(--green);margin-bottom:6px}
.eyebrow .lnk{cursor:pointer}.eyebrow .lnk:hover{text-decoration:underline}

.grid{display:grid;gap:18px}
.grid.c3{grid-template-columns:repeat(auto-fill,minmax(270px,1fr))}
.grid.c4{grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}
.card{background:var(--paper-card);border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow);overflow:hidden}
.card.pad{padding:20px}
.course-card .band{height:7px;background:linear-gradient(90deg,var(--brand),var(--green))}
.course-card .body{padding:18px 20px}
.course-card h3{font-size:20px;letter-spacing:-.01em;margin-bottom:6px}
.course-card .desc{font-family:"Inter",sans-serif;font-size:13px;color:var(--muted);margin-bottom:14px;min-height:38px}
.course-meta{font-family:"Inter",sans-serif;font-size:12px;color:var(--ink-soft);display:flex;gap:14px;margin-bottom:14px;flex-wrap:wrap}
.stat .n{font-size:34px;font-weight:700;letter-spacing:-.02em;color:var(--ink);font-family:"Inter",sans-serif}
.stat .l{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-top:2px;font-family:"Inter",sans-serif}
.progress{height:8px;border-radius:6px;background:#e2e6ee;overflow:hidden}
.progress>i{display:block;height:100%;background:var(--green);border-radius:6px}

table{width:100%;border-collapse:collapse;font-family:"Inter",sans-serif;font-size:14px}
th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);
  font-weight:600;padding:10px 14px;border-bottom:1px solid var(--line)}
td{padding:12px 14px;border-bottom:1px solid #eef0f4;color:var(--ink-soft)}
tr:last-child td{border-bottom:none}
.badge{font-size:11px;font-weight:600;padding:3px 9px;border-radius:20px;display:inline-block}
.badge.pass{background:#e3f0e6;color:var(--green)}
.badge.fail{background:#f6e1e1;color:var(--red)}
.badge.mid{background:#e6ecf6;color:var(--blue)}
.badge.final{background:#f3e3ef;color:#8d3a7a}
.badge.open{background:#e3f0e6;color:var(--green)}
.badge.restr{background:#e8e6f5;color:var(--brand)}

.mat{display:flex;align-items:center;gap:14px;padding:14px 18px;border-bottom:1px solid #eef0f4}
.mat:last-child{border-bottom:none}
.mat .ico{width:40px;height:40px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.ico.vid{background:#f6e1e1;color:var(--red)}
.ico.pdf{background:#e6ecf6;color:var(--blue)}
.ico.doc{background:#e3f0e6;color:var(--green)}
.ico.link{background:#eef0f6;color:var(--ink-soft)}
.mat .info{flex:1}
.mat .info .t{font-weight:600;font-size:14px;color:var(--ink)}
.mat .info .s{font-size:12px;color:var(--muted);display:flex;gap:8px;align-items:center;margin-top:2px}
.mat .acts{display:flex;gap:8px;align-items:center}

.overlay{position:fixed;inset:0;background:rgba(22,34,58,.45);display:none;align-items:center;justify-content:center;z-index:50;padding:20px}
.overlay.show{display:flex}
.modal{background:var(--paper-card);border-radius:14px;max-width:560px;width:100%;max-height:90vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal.wide{max-width:640px}
.modal.viewer{max-width:1000px;width:96vw}
.modal-head{padding:22px 24px 0}
.modal-head h2{font-size:22px;letter-spacing:-.01em}
.modal-head p{font-family:"Inter",sans-serif;font-size:13px;color:var(--muted);margin-top:4px}
.modal-body{padding:18px 24px 24px}
.modal-foot{padding:0 24px 22px;display:flex;gap:10px;justify-content:flex-end}
.row{display:flex;gap:12px}.row>*{flex:1}

.exam-q{background:var(--paper-card);border:1px solid var(--line);border-radius:11px;padding:18px 20px;margin-bottom:14px}
.exam-q .qn{font-family:"Inter",sans-serif;font-size:12px;font-weight:600;color:var(--amber);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}
.exam-q .qt{font-size:17px;margin-bottom:14px}
.opt{display:flex;align-items:center;gap:11px;padding:11px 14px;border:1px solid var(--line);border-radius:9px;margin-bottom:8px;cursor:pointer;font-family:"Inter",sans-serif;font-size:14px;transition:border-color .12s,background .12s}
.opt:hover{border-color:var(--amber)}
.opt.sel{border-color:var(--amber);background:#eef0f9}
.opt input{accent-color:var(--amber)}
.timer{font-family:"Inter",sans-serif;font-weight:600;background:var(--brand);color:#fff;padding:7px 14px;border-radius:9px;font-size:14px}
.timer.warn{background:var(--red)}

/* access manager */
.acc-row{display:flex;align-items:center;justify-content:space-between;padding:12px 4px;border-bottom:1px solid #eef0f4}
.acc-row:last-child{border-bottom:none}
.acc-name{font-family:"Inter",sans-serif;font-size:14px;font-weight:500;color:var(--ink)}
.switch{position:relative;width:46px;height:26px;flex-shrink:0}
.switch input{opacity:0;width:0;height:0}
.slider{position:absolute;inset:0;background:#cfc7b6;border-radius:26px;transition:.2s;cursor:pointer}
.slider:before{content:"";position:absolute;height:20px;width:20px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
.switch input:checked+.slider{background:var(--green)}
.switch input:checked+.slider:before{transform:translateX(20px)}

.toggle-pill{display:inline-flex;border:1px solid var(--line);border-radius:9px;overflow:hidden;font-family:"Inter",sans-serif;font-size:13px}
.toggle-pill button{padding:8px 14px;background:#fff;border:none;color:var(--ink-soft)}
.toggle-pill button.on{background:var(--ink);color:#fff}

.empty{font-family:"Inter",sans-serif;color:var(--muted);text-align:center;padding:50px 20px;border:1px dashed var(--line);border-radius:12px;font-size:14px}
.sec-title{font-family:"Inter",sans-serif;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);margin:26px 0 12px}
.head-flex{display:flex;justify-content:space-between;align-items:center}
.flash{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;
  font-family:"Inter",sans-serif;font-size:14px;padding:12px 20px;border-radius:10px;box-shadow:var(--shadow);
  z-index:80;opacity:0;transition:opacity .25s,transform .25s;pointer-events:none}
.flash.show{opacity:1;transform:translateX(-50%) translateY(-4px)}
.flash.err{background:var(--red)}
@media(max-width:760px){.side{display:none}.main{padding:20px}}

/* переключение вход/регистрация */
.switch-line{font-family:"Inter",sans-serif;font-size:13px;color:var(--muted);
  text-align:center;margin-top:16px}
.lnk2{color:var(--brand);font-weight:600;cursor:pointer}
.lnk2:hover{text-decoration:underline}

/* заблокированный урок */
.mat.locked{opacity:.72}
.mat.locked .ico{background:#eef0f4;color:var(--muted)}
.badge.lock{background:#f0eef7;color:var(--brand)}
.lock-note{font-size:12px;color:var(--muted)}

/* карточка курса в каталоге */
.cat-badge{font-family:"Inter",sans-serif;font-size:11px;font-weight:600;
  padding:3px 9px;border-radius:20px;background:#e8f3ec;color:var(--green);display:inline-block}

/* блок готового сертификата */
.cert-ready{display:flex;align-items:center;gap:16px;padding:18px 22px;margin-bottom:22px;
  background:linear-gradient(100deg,#eef7f1,#eef1fb);border:1px solid #cfe3d6;
  border-radius:13px;box-shadow:var(--shadow)}
.cert-ico{font-size:34px;flex-shrink:0}
.cert-txt{flex:1;font-family:"Inter",sans-serif;font-size:14px;color:var(--ink-soft)}
.cert-txt b{color:var(--green);font-size:16px}