:root{
  --pr:#4f46e5;--pr-d:#4338ca;--pr-l:#eef2ff;
  --bg:#f5f7fb;--card:#fff;--tx:#0f172a;--mu:#64748b;--bd:#e5e7eb;--bd2:#f1f5f9;
  --ok:#16a34a;--ok-l:#dcfce7;--err:#dc2626;--err-l:#fee2e2;--warn:#d97706;--warn-l:#fef3c7;--blue:#2563eb;--blue-l:#dbeafe;
  --r:14px;--sh:0 1px 2px rgba(15,23,42,.04),0 4px 16px rgba(15,23,42,.05);
}
*{box-sizing:border-box}
html,body{margin:0}
body{font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Arial,sans-serif;background:var(--bg);color:var(--tx);-webkit-font-smoothing:antialiased}
a{color:var(--pr);text-decoration:none}
h1,h2,h3{margin:0 0 .5em;line-height:1.25}
h2{font-size:20px}h3{font-size:16px}
.ic{width:18px;height:18px;flex:none;vertical-align:-3px}
.muted{color:var(--mu)}.small{font-size:13px}.w100{width:100%}.tr{text-align:right}.tc{text-align:center}
.mt{margin-top:16px}.mb{margin-bottom:16px}.mb0{margin-bottom:0}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.row.between{justify-content:space-between}
.grid{display:grid;gap:16px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.g-side{grid-template-columns:minmax(0,1fr) 340px;align-items:start}.g-side.wide{grid-template-columns:minmax(0,1fr) 400px}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}.g-side,.g-side.wide{grid-template-columns:1fr}}
@media(max-width:600px){.g2,.g3,.g4{grid-template-columns:1fr}.hide-sm{display:none}}

/* Buttons */
.btn,.btn-ghost,.btn-sec,.btn-danger,.btn-ok{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:10px 16px;font:inherit;font-weight:600;cursor:pointer;transition:.15s;white-space:nowrap;text-decoration:none}
.btn{background:var(--pr);color:#fff}.btn:hover{background:var(--pr-d)}
.btn-sec{background:#fff;border-color:var(--bd);color:var(--tx)}.btn-sec:hover{border-color:#cbd5e1;background:#f8fafc}
.btn-ghost{background:transparent;color:var(--mu);padding:8px 12px}.btn-ghost:hover{background:var(--bd2);color:var(--tx)}
.btn-danger{background:var(--err-l);color:var(--err)}.btn-danger:hover{background:var(--err);color:#fff}
.btn-ok{background:var(--ok);color:#fff}.btn-ok:hover{filter:brightness(.95)}
.btn-sm{padding:6px 10px;font-size:13px;border-radius:8px}
.btn-lg{padding:14px 22px;font-size:16px}
button:disabled{opacity:.55;cursor:not-allowed}
.ibtn{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;border:1px solid var(--bd);background:#fff;color:var(--mu);cursor:pointer}
.ibtn:hover{color:var(--pr);border-color:var(--pr)}.ibtn.del:hover{color:var(--err);border-color:var(--err)}
form.inl{display:inline}

/* Forms */
label{display:block;font-weight:600;font-size:13px;margin:0 0 6px;color:#334155}
.inp,input[type=text],input[type=password],input[type=number],input[type=datetime-local],input[type=search],select,textarea{width:100%;padding:10px 12px;border:1px solid var(--bd);border-radius:10px;font:inherit;background:#fff;color:var(--tx);transition:.15s}
textarea{min-height:90px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--pr);box-shadow:0 0 0 3px rgba(79,70,229,.15)}
.fg{margin-bottom:14px}
.chk{display:flex;align-items:center;gap:8px;font-weight:500;cursor:pointer;margin:0}
.chk input{width:18px;height:18px;accent-color:var(--pr)}
.hint{font-size:12px;color:var(--mu);margin-top:4px;font-weight:400}

/* Cards */
.card{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);box-shadow:var(--sh);padding:20px}
.card-h{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.card-h h2,.card-h h3{margin:0}
.stat{display:flex;gap:14px;align-items:center}
.stat .si{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:var(--pr-l);color:var(--pr)}
.stat .si .ic{width:22px;height:22px}
.stat b{font-size:24px;display:block;line-height:1.1}.stat small{color:var(--mu)}

/* Alerts & badges */
.alert{padding:12px 14px;border-radius:10px;margin-bottom:14px;font-size:14px;border:1px solid}
.alert-ok{background:var(--ok-l);color:#166534;border-color:#bbf7d0}
.alert-err{background:var(--err-l);color:#991b1b;border-color:#fecaca}
.alert-warn{background:var(--warn-l);color:#92400e;border-color:#fde68a}
.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.b-green{background:var(--ok-l);color:#166534}.b-red{background:var(--err-l);color:#991b1b}.b-blue{background:var(--blue-l);color:#1e40af}.b-gray{background:var(--bd2);color:var(--mu)}.b-warn{background:var(--warn-l);color:#92400e}

/* Tables */
.tbl-wrap{overflow-x:auto;margin:0 -20px;padding:0 20px}
table.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--mu);font-weight:600;padding:10px;border-bottom:1px solid var(--bd);white-space:nowrap}
.tbl td{padding:11px 10px;border-bottom:1px solid var(--bd2);vertical-align:middle}
.tbl tr:hover td{background:#fafbff}
.tbl .acts{display:flex;gap:6px;justify-content:flex-end}
.empty{text-align:center;color:var(--mu);padding:30px 10px}

/* ===== PANEL SHELL ===== */
.shell{display:flex;min-height:100vh}
.side{width:250px;background:#0f172a;color:#cbd5e1;display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;z-index:40;transition:transform .2s}
.side .brand{display:flex;gap:10px;align-items:center;padding:20px 18px;color:#fff}
.side .brand small{display:block;color:#94a3b8;font-size:12px}
.logo{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#6366f1,#4338ca);display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;flex:none}
.side nav{flex:1;padding:6px 10px;overflow-y:auto}
.side nav a{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;color:#cbd5e1;font-weight:500;margin-bottom:2px}
.side nav a:hover{background:#1e293b;color:#fff}
.side nav a.on{background:var(--pr);color:#fff}
.side-foot{padding:14px;border-top:1px solid #1e293b}
.side-foot .btn-ghost{color:#94a3b8;margin-top:10px}.side-foot .btn-ghost:hover{background:#1e293b;color:#fff}
.me{display:flex;gap:10px;align-items:center}.me b{display:block;font-size:14px}.me small{color:var(--mu);font-size:12px}
.side .me b{color:#fff}
.av{width:36px;height:36px;border-radius:50%;background:var(--pr-l);color:var(--pr);display:grid;place-items:center;font-weight:700;flex:none}
.main{flex:1;margin-left:250px;min-width:0}
.topbar{display:flex;align-items:center;gap:12px;padding:18px 28px;background:#fff;border-bottom:1px solid var(--bd);position:sticky;top:0;z-index:20}
.topbar h1{font-size:20px;margin:0}
.burger{display:none;border:1px solid var(--bd);background:#fff;border-radius:8px;width:38px;height:38px;font-size:18px;cursor:pointer}
.content{padding:24px 28px;max-width:1400px}
@media(max-width:900px){.side{transform:translateX(-100%)}.side.open{transform:none;box-shadow:0 0 0 100vmax rgba(0,0,0,.4)}.main{margin-left:0}.burger{display:block}.content{padding:16px}.topbar{padding:12px 16px}}

/* ===== AUTH ===== */
body.auth{background:radial-gradient(1200px 600px at 10% -10%,#e0e7ff,transparent),radial-gradient(900px 500px at 110% 110%,#ede9fe,transparent),var(--bg)}
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:20px}
.auth-card{width:100%;max-width:400px;background:#fff;border:1px solid var(--bd);border-radius:20px;box-shadow:0 20px 50px rgba(15,23,42,.08);padding:34px 30px}
.auth-card .logo{width:52px;height:52px;font-size:24px;border-radius:14px;margin:0 auto 16px}
.auth-card h2{text-align:center;margin-bottom:4px}
.auth-card .sub{text-align:center;color:var(--mu);margin:0 0 24px;font-size:14px}
.auth-ic{width:60px;height:60px;border-radius:50%;display:grid;place-items:center;margin:0 auto 14px}
.auth-ic.ok{background:var(--ok-l);color:var(--ok)}.auth-ic .ic{width:30px;height:30px}
.pw{position:relative}.pw button{position:absolute;right:6px;top:50%;transform:translateY(-50%);border:0;background:none;color:var(--mu);cursor:pointer;padding:6px}
.cred{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;background:var(--bd2);padding:14px;border-radius:10px;margin:14px 0}
.cred span{color:var(--mu)}
.auth-foot{text-align:center;margin-top:18px;font-size:13px;color:var(--mu)}

/* ===== STUDENT ===== */
.stop{background:#fff;border-bottom:1px solid var(--bd);position:sticky;top:0;z-index:20}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
.stop .wrap{display:flex;justify-content:space-between;align-items:center;height:66px}
.stop .brand{display:flex;gap:10px;align-items:center;color:var(--tx)}
.stop-r{display:flex;gap:14px;align-items:center}
.spage{padding-top:28px;padding-bottom:40px}
.tcards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.tcard{display:flex;flex-direction:column;gap:12px}
.tcard h3{margin:0;font-size:17px}
.meta{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px;color:var(--mu)}
.meta span{display:inline-flex;gap:6px;align-items:center}.meta .ic{width:15px;height:15px}
.tcard .foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:10px}
.hello{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border-radius:18px;padding:24px 26px;margin-bottom:24px}
.hello h2{margin:0 0 4px}.hello p{margin:0;opacity:.85}
.rules{list-style:none;padding:0;margin:0 0 18px}
.rules li{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--bd)}
.rules li .ic{color:var(--err);margin-top:2px}

/* ===== RESULT ===== */
.score-ring{--p:0;width:170px;height:170px;border-radius:50%;margin:0 auto 14px;display:grid;place-items:center;background:conic-gradient(var(--c,var(--pr)) calc(var(--p)*1%),var(--bd2) 0)}
.score-ring>div{width:136px;height:136px;border-radius:50%;background:#fff;display:grid;place-items:center;text-align:center}
.score-ring b{font-size:34px;display:block;line-height:1}.score-ring small{color:var(--mu)}
.rstats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}
.rstats div{padding:14px;border-radius:12px;text-align:center}.rstats b{font-size:22px;display:block}
.rs-ok{background:var(--ok-l);color:#166534}.rs-err{background:var(--err-l);color:#991b1b}.rs-em{background:var(--bd2);color:var(--mu)}
.rev{border:1px solid var(--bd);border-radius:12px;padding:14px 16px;margin-bottom:10px}
.rev.ok{border-left:4px solid var(--ok)}.rev.bad{border-left:4px solid var(--err)}.rev.em{border-left:4px solid #cbd5e1}
.rev .qimg{max-width:100%;max-height:260px;border-radius:8px;margin:8px 0}
.rev .ans{display:flex;gap:16px;flex-wrap:wrap;font-size:14px;margin-top:6px}

/* ===== EXAM ===== */
body.exam{user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;background:#eef1f7}
body.exam input[type=text]{user-select:text;-webkit-user-select:text}
.ex-top{position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--bd);box-shadow:var(--sh)}
.ex-top .in{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 20px;max-width:1500px;margin:0 auto}
.ex-title b{display:block;font-size:15px}.ex-title small{color:var(--mu)}
.timer{display:flex;align-items:center;gap:8px;font-weight:700;font-size:20px;font-variant-numeric:tabular-nums;padding:8px 14px;border-radius:10px;background:var(--pr-l);color:var(--pr)}
.timer.warn{background:var(--warn-l);color:var(--warn)}.timer.crit{background:var(--err-l);color:var(--err);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.6}}
.viol-pill{font-size:13px;font-weight:600;padding:6px 10px;border-radius:999px;background:var(--bd2);color:var(--mu)}
.viol-pill.has{background:var(--err-l);color:var(--err)}
.ex-body{max-width:1500px;margin:0 auto;padding:20px;display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:start}
.ex-body.pdf{grid-template-columns:1fr 340px}
@media(max-width:980px){.ex-body,.ex-body.pdf{grid-template-columns:1fr}}
.qcard{background:#fff;border:1px solid var(--bd);border-radius:16px;padding:26px;box-shadow:var(--sh);min-height:380px;display:none}
.qcard.on{display:block}
.qnum{display:inline-block;font-size:13px;font-weight:700;color:var(--pr);background:var(--pr-l);padding:4px 10px;border-radius:999px;margin-bottom:12px}
.qbody{font-size:17px;line-height:1.65;margin-bottom:14px;white-space:pre-wrap;word-wrap:break-word}
.qimg{max-width:100%;max-height:420px;border-radius:10px;border:1px solid var(--bd);margin-bottom:16px;display:block;pointer-events:none}
.opts{display:flex;flex-direction:column;gap:10px}
.opt{display:flex;gap:14px;align-items:center;padding:13px 16px;border:2px solid var(--bd);border-radius:12px;cursor:pointer;transition:.12s;font-weight:500}
.opt:hover{border-color:#c7d2fe;background:#fafbff}
.opt input{display:none}
.opt .l{width:34px;height:34px;border-radius:50%;border:2px solid var(--bd);display:grid;place-items:center;font-weight:700;flex:none;color:var(--mu)}
.opt.sel{border-color:var(--pr);background:var(--pr-l)}
.opt.sel .l{background:var(--pr);border-color:var(--pr);color:#fff}
.qnav{display:flex;justify-content:space-between;margin-top:22px;gap:10px}
.side-box{background:#fff;border:1px solid var(--bd);border-radius:16px;padding:18px;box-shadow:var(--sh);position:sticky;top:84px}
.ngrid{display:grid;grid-template-columns:repeat(6,1fr);gap:6px;margin:12px 0 16px;max-height:44vh;overflow-y:auto;padding:2px}
.ngrid button{aspect-ratio:1;border:1px solid var(--bd);background:#fff;border-radius:8px;font-weight:600;cursor:pointer;font-size:13px;color:var(--mu)}
.ngrid button.ans{background:var(--pr);border-color:var(--pr);color:#fff}
.ngrid button.cur{outline:2px solid var(--pr);outline-offset:1px}
.legend{display:flex;gap:14px;font-size:12px;color:var(--mu);margin-bottom:14px}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;border:1px solid var(--bd);vertical-align:-2px;margin-right:4px}
.legend i.a{background:var(--pr);border-color:var(--pr)}
.save-st{font-size:12px;color:var(--mu);text-align:center;margin-top:10px;min-height:18px}
/* PDF mode */
.pdf-box{background:#fff;border:1px solid var(--bd);border-radius:16px;box-shadow:var(--sh);overflow:hidden}
.pdf-tools{display:flex;gap:8px;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--bd);background:#fafbfd}
.pdf-pages{height:calc(100vh - 160px);overflow:auto;background:#525659;padding:14px;position:relative}
.pdf-pages canvas{display:block;margin:0 auto 14px;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.3);max-width:none}
.pdf-load{color:#fff;text-align:center;padding:40px}
.sheet{display:flex;flex-direction:column;gap:6px;max-height:calc(100vh - 290px);overflow-y:auto;padding-right:4px}
.srow{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:10px}
.srow:hover{background:var(--bd2)}
.srow .n{width:30px;font-weight:700;color:var(--mu);font-size:13px;flex:none}
.srow .bub{display:flex;gap:6px}
.bub label{margin:0;width:32px;height:32px;border-radius:50%;border:2px solid var(--bd);display:grid;place-items:center;font-weight:700;font-size:13px;cursor:pointer;color:var(--mu);transition:.1s}
.bub input{display:none}
.bub label.sel{background:var(--pr);border-color:var(--pr);color:#fff}
.srow input[type=text]{padding:6px 10px;font-size:14px}
/* overlays */
.wm{position:fixed;inset:0;pointer-events:none;z-index:25;overflow:hidden;opacity:.05}
.wm div{position:absolute;inset:-50%;display:flex;flex-wrap:wrap;gap:80px 120px;transform:rotate(-24deg);font-weight:700;font-size:18px;color:#000;align-content:flex-start;padding:40px}
.ov{position:fixed;inset:0;background:rgba(15,23,42,.72);backdrop-filter:blur(6px);z-index:100;display:none;place-items:center;padding:20px}
.ov.on{display:grid}
.ov .box{background:#fff;border-radius:18px;max-width:460px;width:100%;padding:28px;text-align:center;box-shadow:0 30px 60px rgba(0,0,0,.3)}
.ov .box .bi{width:62px;height:62px;border-radius:50%;display:grid;place-items:center;margin:0 auto 14px;background:var(--pr-l);color:var(--pr)}
.ov .box .bi.r{background:var(--err-l);color:var(--err)}.ov .box .bi .ic{width:30px;height:30px}
.ov .box p{color:var(--mu)}
.ov .box .row{justify-content:center;margin-top:18px}
.blocker{display:none}
@media print{body *{display:none!important}body::after{content:"Çap qadağandır";display:block!important}}

/* Panel misc */
.qlist .qi{display:flex;gap:14px;padding:14px;border:1px solid var(--bd);border-radius:12px;margin-bottom:10px;background:#fff;align-items:flex-start}
.qi .qn{width:34px;height:34px;border-radius:10px;background:var(--pr-l);color:var(--pr);display:grid;place-items:center;font-weight:700;flex:none}
.qi .qc{flex:1;min-width:0}.qi .qc .qt{white-space:pre-wrap;word-wrap:break-word}
.qi img{max-height:120px;border-radius:8px;margin-top:6px;border:1px solid var(--bd)}
.qi .ol{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:13px;color:var(--mu);margin-top:6px}
.qi .ol .c{color:var(--ok);font-weight:700}
.qi .qa{display:flex;gap:6px;flex:none}
.optrow{display:flex;gap:10px;align-items:center;margin-bottom:8px}
.optrow .lt{width:34px;height:38px;display:grid;place-items:center;font-weight:700;background:var(--bd2);border-radius:8px;flex:none}
.optrow input[type=radio]{width:20px;height:20px;accent-color:var(--ok);flex:none}
.tabs{display:flex;gap:4px;background:var(--bd2);padding:4px;border-radius:12px;margin-bottom:16px;flex-wrap:wrap}
.tabs a,.tabs button{padding:8px 14px;border-radius:9px;color:var(--mu);font-weight:600;border:0;background:none;cursor:pointer;font:inherit;font-weight:600}
.tabs .on{background:#fff;color:var(--tx);box-shadow:var(--sh)}
.tabpane{display:none}.tabpane.on{display:block}
.credtbl td,.credtbl th{border:1px solid var(--bd);padding:8px 10px}
.credtbl{border-collapse:collapse;width:100%}
.live-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--ok);margin-right:6px;animation:pulse 1.4s infinite}
.pbar{height:8px;background:var(--bd2);border-radius:99px;overflow:hidden;min-width:80px}
.pbar i{display:block;height:100%;background:var(--pr);border-radius:99px}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.filters>*{width:auto;min-width:160px}
.pager{display:flex;gap:6px;justify-content:center;margin-top:16px}
.pager a,.pager span{padding:6px 12px;border:1px solid var(--bd);border-radius:8px;background:#fff;font-size:13px}
.pager span{background:var(--pr);color:#fff;border-color:var(--pr)}
@media print{
  body.printable *{display:revert!important}
  body.printable .side,body.printable .topbar,body.printable .noprint{display:none!important}
  body.printable .main{margin:0}
  body.printable::after{display:none!important}
}