:root{--bg:#0f172a;--panel:#fff;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;
--brand:#4f46e5;--brand2:#4338ca;--ok:#16a34a;--bad:#dc2626;--mid:#d97706;--soft:#f1f5f9;}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--soft);}
a{color:var(--brand);text-decoration:none} a:hover{text-decoration:underline}
code{background:#eef2ff;padding:1px 5px;border-radius:4px;font-size:.9em}
.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.hidden{display:none!important}
.muted{color:var(--muted);font-size:.9rem}
.err{color:var(--bad)}

/* nav */
.topnav{display:flex;gap:18px;align-items:center;background:var(--bg);color:#fff;padding:12px 22px}
.topnav a{color:#c7d2fe} .topnav a:hover{color:#fff}
.topnav .brand{font-weight:700;color:#fff;margin-right:12px}
.topnav .right{margin-left:auto}
.who-nav{margin-left:auto;color:#94a3b8;font-size:.85rem}
.who-nav+.right{margin-left:16px}
.btn.ghost{background:#eef2ff;color:var(--brand)}

.wrap{max-width:1000px;margin:24px auto;padding:0 18px}
h1{margin:.2em 0 .6em}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px;margin:0 0 18px;box-shadow:0 1px 3px rgba(15,23,42,.05)}
.card h2{margin-top:0;font-size:1.1rem}

/* forms */
input,textarea,button,select{font:inherit}
input[type=text],input[type=password],input[type=number],textarea,input:not([type]){
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;margin:6px 0}
button,.btn{background:var(--brand);color:#fff;border:0;padding:10px 16px;border-radius:8px;cursor:pointer;font-weight:600;display:inline-block}
button:hover,.btn:hover{background:var(--brand2);text-decoration:none}
button:disabled{background:#94a3b8;cursor:not-allowed}
.btn.sm{padding:6px 10px;font-size:.85rem}.btn.sm{background:#eef2ff;color:var(--brand)}
.chk{display:flex;align-items:center;gap:8px;margin:8px 0}
.chk input{width:auto;margin:0}.chk.big{font-size:1rem}
.settings{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px}
.settings button{grid-column:1/-1;justify-self:start}
.settings .full{grid-column:1/-1}
.settings .sep{border:0;border-top:1px solid var(--line);margin:6px 0}
.settings .muted-head{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;font-weight:700}
.flash{background:#dcfce7;border:1px solid #86efac;color:#166534;padding:10px 14px;border-radius:8px;margin-bottom:14px}
.flash.warn{background:#fef9c3;border-color:#fde047;color:#854d0e}
.btnrow{display:flex;gap:10px;align-items:center}

/* tables */
table{width:100%;border-collapse:collapse;font-size:.92rem}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.03em}
tr.ok td{background:#f0fdf4} tr.no td{background:#fef2f2}
.link{font-family:monospace;font-size:.8rem}

/* stat cards */
.grid{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:8px}
.stat{flex:1;min-width:140px;text-align:center}
.stat .num{display:block;font-size:2rem;font-weight:800;color:var(--brand)}
.badge{padding:2px 9px;border-radius:20px;font-size:.75rem;font-weight:600;background:#e2e8f0;color:#334155}
.badge.in_progress{background:#fef9c3;color:#854d0e}.badge.submitted{background:#dcfce7;color:#166534}
.trust{font-weight:800;padding:2px 10px;border-radius:20px}
.trust.good{background:#dcfce7;color:#166534}.trust.mid{background:#fef9c3;color:#854d0e}.trust.bad{background:#fee2e2;color:#991b1b}
.rowbetween{display:flex;justify-content:space-between;align-items:center}
.flags{columns:2;list-style:none;padding:0}.flags li{padding:3px 0}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px}
.gallery img{width:100%;border-radius:8px;border:1px solid var(--line)}
.clips{display:flex;gap:12px;flex-wrap:wrap}.clips video{max-width:100%;width:420px;border-radius:8px;background:#000}

/* branding — centered, minimal, classy */
:root{--navy:#14329b;--navy2:#0f2578;}
.brand-logo{width:120px;height:auto;display:block;margin:0 auto 10px}
.nav-logo,.bar-logo{height:22px;width:auto;background:#fff;padding:2px 5px;border-radius:5px}
.exam-intro h1,.card h1{font-family:'Segoe UI',system-ui,sans-serif;font-weight:800;letter-spacing:-.02em;color:var(--navy);text-align:center;margin:.1em 0 .5em}

/* ===== admin app shell (sidebar) ===== */
body.appshell{display:flex;min-height:100vh;background:#f4f6fb}
.sidebar{width:236px;flex-shrink:0;background:linear-gradient(180deg,#0f1b3d,#14245a);color:#cbd5e1;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.side-logo{padding:20px 18px 14px;text-align:center;border-bottom:1px solid rgba(255,255,255,.08)}
.side-logo img{width:104px;height:auto;background:#fff;padding:7px 10px;border-radius:8px}
.side-portal{display:block;margin-top:8px;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:#93a3c9}
.side-nav{display:flex;flex-direction:column;padding:14px 10px;gap:3px;flex:1}
.side-nav a{display:flex;align-items:center;gap:11px;padding:10px 13px;border-radius:9px;color:#c7d0e6;font-weight:500;font-size:.94rem}
.side-nav a span{width:20px;text-align:center;opacity:.9}
.side-nav a:hover{background:rgba(255,255,255,.07);text-decoration:none;color:#fff}
.side-nav a.on{background:var(--brand);color:#fff}
.side-nav .dot-live{color:#ef4444}
.side-foot{padding:14px;border-top:1px solid rgba(255,255,255,.08)}
.side-user{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-size:.85rem;color:#e2e8f0}
.side-user small{display:block;color:#8fa0c7;text-transform:capitalize}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.side-logout{display:block;text-align:center;padding:8px;border-radius:8px;background:rgba(255,255,255,.08);color:#e2e8f0;font-size:.88rem}
.side-logout:hover{background:rgba(255,255,255,.16);text-decoration:none}

.appmain{flex:1;min-width:0;display:flex;flex-direction:column}
.apptop{display:flex;align-items:center;justify-content:space-between;padding:20px 30px;background:#fff;border-bottom:1px solid var(--line)}
.apptop h1{margin:0;font-size:1.5rem;color:#0f172a}
.appbody{padding:26px 30px;max-width:1200px;width:100%}

/* stat cards */
.statgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:20px}
.statcard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;display:flex;align-items:center;gap:14px;box-shadow:0 1px 3px rgba(15,23,42,.05)}
.statcard b{font-size:1.9rem;font-weight:800;line-height:1;display:block;color:#0f172a}
.statcard span:last-child{color:var(--muted);font-size:.85rem}
.s-ico{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.3rem}
.s-ico.blue{background:#e0e7ff}.s-ico.green{background:#dcfce7}.s-ico.amber{background:#fef9c3}.s-ico.teal{background:#ccfbf1}.s-ico.violet{background:#ede9fe}

/* panels & layout */
.panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 24px;margin-bottom:20px;box-shadow:0 1px 3px rgba(15,23,42,.04)}
.panel h2{margin:0 0 14px;font-size:1.08rem}
.cols2{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
@media(max-width:900px){
  .cols2{grid-template-columns:1fr}
  .sidebar{width:62px}
  .side-nav a{font-size:0;justify-content:center;padding:11px 0}
  .side-nav a span{font-size:1.05rem}
  .side-portal,.side-user span,.side-logout{font-size:0}
  .side-logo img{width:40px}
  .appbody,.apptop{padding-left:18px;padding-right:18px}
}

/* quick actions */
.quickgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.quick{display:flex;flex-direction:column;align-items:center;gap:8px;padding:18px 12px;border:1px solid var(--line);border-radius:12px;background:#fbfcff;color:#334155;font-weight:600;font-size:.9rem;text-align:center}
.quick:hover{border-color:var(--brand);background:#f5f7ff;text-decoration:none;transform:translateY(-2px);transition:.15s}
.q-ico{font-size:1.6rem}
.steps{line-height:2;padding-left:20px;margin:0}
.uploadform{margin-top:12px;display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.uploadform input[type=file]{width:100%}

/* exam intro */
.exam-intro{max-width:560px}
.exam-intro h1{text-align:center}
.instructions{background:#eef4ff;border:1px solid #c7dcff;border-radius:10px;padding:12px 15px;margin:8px 0 14px}
.instructions b{color:var(--navy)}.instructions p{margin:6px 0 0;font-size:.92rem;color:#334155}
.inline-select select{padding:5px 8px;border:1px solid var(--line);border-radius:6px;font-size:.82rem;margin:0}
.qopts{display:flex;flex-direction:column;gap:2px;font-size:.82rem;color:#475569;max-width:360px}
.qopts .ansok{color:#166534;font-weight:600}
.qactions{white-space:nowrap;display:flex;gap:6px}
.btn.sm.btn-danger{background:#fee2e2;color:#b91c1c}
.btn.sm.btn-danger:hover{background:#fecaca}
.filterbar{display:flex;gap:8px;align-items:center}
.filterbar input[type=search]{margin:0;width:220px;padding:8px 10px}
.filterbar select{margin:0;padding:8px 10px;border:1px solid var(--line);border-radius:8px}
.bulkbar{display:flex;align-items:center;gap:12px;padding:10px 12px;background:#f8fafc;border:1px solid var(--line);border-radius:10px;margin-bottom:12px;flex-wrap:wrap}
.bulkbar .spacer{flex:1}
.bulkbar .bulk-target{margin:0;padding:6px 8px;border:1px solid var(--line);border-radius:8px;font-size:.85rem;max-width:200px}
.rowchk,#selall{width:16px;height:16px;accent-color:var(--brand)}
.bar-wrap{display:flex;align-items:center;gap:12px;margin:10px 0}
.bar-wrap span{width:70px;font-size:.85rem;color:var(--muted)}
.bar{flex:1;height:14px;background:#eef2f7;border-radius:8px;overflow:hidden}
.bar i{display:block;height:100%;width:0;background:#16a34a;transition:width .4s,background .4s}
#detailsBox .exam-intro label{display:block;margin:10px 0}

/* one-question-per-page */
.qcard{max-width:760px;margin:80px auto 40px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 30px;box-shadow:0 2px 10px rgba(15,23,42,.06)}
.qmeta{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.qmeta .sec{color:var(--brand);font-weight:700;font-size:.85rem}
.qmeta .qcount{color:var(--muted);font-size:.85rem}
.qcard .qtext{font-size:1.2rem;font-weight:600;line-height:1.4;margin:0 0 20px}
.qcard .opts{display:flex;flex-direction:column;gap:10px}
.qcard .opt{display:flex;align-items:center;gap:12px;padding:14px 16px;border:1.5px solid var(--line);border-radius:10px;cursor:pointer;font-size:1.02rem;color:#0f172a;transition:.12s}
.qcard .opt:hover{background:#eef4ff;border-color:#93b4ff;color:#0f172a}
.qcard .opt:has(input:checked){background:#e0e7ff;border-color:var(--brand);font-weight:600}
.qcard .opt input{width:18px;height:18px;margin:0;accent-color:var(--brand)}

/* question palette / overview */
.exam-wrap{display:grid;grid-template-columns:1fr 220px;gap:20px;max-width:1040px;margin:80px auto 40px;padding:0 18px}
@media(max-width:820px){.exam-wrap{grid-template-columns:1fr}}
.qcard{margin:0}
.palette{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;position:sticky;top:70px;height:max-content}
.palette h3{margin:0 0 6px;font-size:.95rem}
.palette .legend{display:flex;gap:12px;font-size:.72rem;color:var(--muted);margin-bottom:12px;flex-wrap:wrap}
.palette .legend i{width:12px;height:12px;border-radius:3px;display:inline-block;vertical-align:middle;margin-right:4px}
.leg-ans{background:#16a34a}.leg-skip{background:#fecaca}.leg-cur{background:var(--brand)}.leg-none{background:#e2e8f0}
.pgrid{display:grid;grid-template-columns:repeat(5,1fr);gap:7px}
.pnum{aspect-ratio:1;border:1px solid var(--line);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:.82rem;font-weight:600;cursor:pointer;background:#fff;color:#334155;position:relative}
.pnum.answered{background:#16a34a;color:#fff;border-color:#16a34a}
.pnum.answered::after{content:"✓";position:absolute;top:-4px;right:-4px;background:#fff;color:#16a34a;border-radius:50%;font-size:.6rem;width:14px;height:14px;display:flex;align-items:center;justify-content:center;border:1px solid #16a34a}
.pnum.skipped{background:#fecaca;color:#991b1b;border-color:#fca5a5}
.pnum.current{outline:3px solid var(--brand);outline-offset:1px}
.pnum:hover{border-color:var(--brand)}
.palette .p-actions{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.btn-skip{background:#fff;color:#b91c1c;border:1px solid #fca5a5}
.btn-skip:hover{background:#fef2f2}

/* maintenance / storage */
.danger-zone{border:1px solid #fecaca;background:#fff5f5;border-radius:12px;padding:18px 20px}
.danger-zone h2{color:#b91c1c}
.danger-row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:12px 0;border-bottom:1px solid #fee2e2}
.danger-row:last-child{border-bottom:0}
.btn-danger{background:#dc2626}.btn-danger:hover{background:#b91c1c}
.qfoot{display:flex;justify-content:space-between;align-items:center;margin-top:24px}
.qwarn{color:#b45309;font-size:.85rem}
#nextBtn{padding:12px 30px;font-size:1rem}

/* dual timers in bar */
#proctorbar .tlabel{color:#94a3b8;font-size:.7rem;text-transform:uppercase;margin-left:6px}
#pb-qtimer{font-size:1.05rem;font-weight:800;font-variant-numeric:tabular-nums;color:#fde68a}
#pb-qtimer.low{color:#fca5a5}
.rules{line-height:1.7;padding-left:18px}
#startBtn{width:100%;margin-top:10px;padding:14px}

/* exam body */
#examroot{max-width:820px;margin:70px auto 60px;padding:0 18px}
.exam-head h2{margin:6px 0 4px}
.sec{margin:26px 0 8px;color:var(--brand);border-bottom:2px solid var(--line);padding-bottom:6px}
.q{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin:12px 0}
.qtext{font-weight:600;margin:0 0 10px}.qn{color:var(--muted);margin-right:6px}
.opt{display:block;padding:9px 12px;border:1px solid var(--line);border-radius:8px;margin:6px 0;cursor:pointer}
.opt:hover{background:var(--soft)} .opt input{margin-right:10px}
.exam-foot{display:flex;justify-content:space-between;align-items:center;margin:22px 0 40px}
#submitBtn{padding:12px 26px}

/* proctor bar */
#proctorbar{position:fixed;top:0;left:0;right:0;height:46px;background:var(--bg);color:#fff;
  display:flex;align-items:center;gap:16px;padding:0 16px;z-index:50;font-size:.85rem}
#pb-timer{font-size:1.15rem;font-weight:800;font-variant-numeric:tabular-nums}
#pb-timer.low{color:#fca5a5}
.pb-on{color:#86efac}.pb-off{color:#fca5a5}
.pb-on::before,.pb-off::before{content:"● "}
#proctorbar #camPreview{margin-left:auto;height:38px;border-radius:6px;background:#000}

/* overlay */
.overlay{position:fixed;inset:0;background:rgba(15,23,42,.92);display:flex;align-items:center;justify-content:center;z-index:100}
.overlay .card{max-width:420px;text-align:center}

/* ---- live proctoring ---- */
.wrap.wide{max-width:1280px}
.live-layout{display:grid;grid-template-columns:1fr 420px;gap:18px;align-items:start}
@media(max-width:980px){.live-layout{grid-template-columns:1fr}}
.livegrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.tile{border:1px solid var(--line);border-radius:10px;overflow:hidden;cursor:pointer;background:#fff;transition:.15s}
.tile:hover{box-shadow:0 3px 10px rgba(15,23,42,.15);transform:translateY(-1px)}
.tile.off{opacity:.55}
.tile.hasmsg{outline:2px solid #f59e0b}
.thumbwrap{aspect-ratio:4/3;background:#0f172a;display:flex;align-items:center;justify-content:center}
.thumb{width:100%;height:100%;object-fit:cover}
.thumb-ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#94a3b8;font-size:.8rem}
.tinfo{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding:8px 10px;font-size:.82rem}
.tinfo b{flex:1;min-width:60px}
.flag{color:#b45309;font-weight:700}
.dot{width:9px;height:9px;border-radius:50%}.dot.g{background:#22c55e}.dot.r{background:#94a3b8}
.detail-card{position:sticky;top:16px}
.feeds{display:grid;gap:10px}
.feeds figure{margin:0}.feeds figcaption{font-size:.75rem;color:var(--muted);margin-bottom:4px}
.feed{width:100%;border-radius:8px;background:#0f172a;aspect-ratio:4/3;object-fit:cover}
.feed.screen{aspect-ratio:16/10}
.talkrow{display:flex;align-items:center;gap:10px;margin:12px 0}
.btn.talk{background:#0ea5e9;user-select:none}.btn.talk.recording{background:#dc2626;animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.6}}
.chatbox{border-top:1px solid var(--line);margin-top:10px;padding-top:10px}
.chatlog{height:200px;overflow-y:auto;display:flex;flex-direction:column;gap:6px;padding:4px}
.msg{max-width:85%;padding:7px 11px;border-radius:12px;font-size:.88rem;line-height:1.35}
.msg .who{display:block;font-size:.68rem;opacity:.6;margin-bottom:2px}
.msg.me{align-self:flex-end;background:var(--brand);color:#fff;border-bottom-right-radius:3px}
.msg.them{align-self:flex-start;background:var(--soft);border-bottom-left-radius:3px}
.chatform,.cc-toggle+#candchat #cc-form{display:flex;gap:8px;margin-top:8px}
.chatform input{margin:0}.chatform button{padding:10px 14px}

/* candidate chat widget */
.cc-toggle{position:fixed;bottom:18px;right:18px;z-index:60;border-radius:24px;padding:12px 18px;box-shadow:0 4px 14px rgba(0,0,0,.25)}
.cc-toggle.ping{animation:pulse .8s infinite;background:#dc2626}
.candchat{position:fixed;bottom:18px;right:18px;z-index:61;width:320px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,.25);overflow:hidden}
.cc-head{background:var(--bg);color:#fff;padding:10px 14px;font-weight:600;display:flex;justify-content:space-between;align-items:center}
.cc-head button{background:transparent;padding:0 6px;font-size:1.1rem}
.candchat .chatlog{height:240px}
#cc-form{display:flex;gap:6px;padding:8px}
#cc-form input{margin:0}#cc-form button{padding:8px 12px}