:root{--p:#3f72b4;--p2:#2f5d99;--bg:#f3f6fb;--card:#fff;--tx:#1f2a3a;--mu:#6b7a90;--bd:#dde4ef;--ok:#1f9d63;--er:#d64545;--wa:#e0912b;--fs:17px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--tx);font-size:15px;line-height:1.5}
a{color:var(--p)}h1,h2,h3,h4{margin:0 0 .5em}.muted{color:var(--mu)}.center{text-align:center}.nw{white-space:nowrap}.grow{flex:1;min-width:180px}
.btn{display:inline-block;border:0;border-radius:8px;background:var(--p);color:#fff;padding:9px 18px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
.btn:hover{background:var(--p2)}.btn.sm{padding:5px 11px;font-size:13px}.btn.big{padding:11px 34px;min-width:140px;height:auto;line-height:1.3}.btn.full{width:100%;margin-top:10px}
.btn.ghost{background:#fff;color:var(--p);border:1px solid var(--bd)}.btn.ghost:hover{background:#eef3fa}
.btn.danger{background:var(--er)}.btn.ok{background:var(--ok)}.btn[disabled]{opacity:.4;cursor:default}
input,select,textarea{font:inherit;width:100%;padding:9px 11px;border:1px solid var(--bd);border-radius:8px;background:#fff;color:var(--tx)}
input[type=checkbox],input[type=radio]{width:auto}input:focus,select:focus,textarea:focus{outline:2px solid #bcd1ee;border-color:var(--p)}
label{display:block;font-weight:600;margin:12px 0 4px;font-size:14px}.toolbar label{margin:0}
.alert{padding:10px 14px;border-radius:8px;margin:0 0 14px;font-size:14px}.alert.ok{background:#e4f6ec;color:#176b45}.alert.err{background:#fde8e8;color:#9d2b2b}
.badge{display:inline-block;padding:2px 9px;border-radius:99px;background:#e8edf5;color:#44546a;font-size:12px;font-weight:600}
.badge.g{background:#dff3e8;color:#176b45}.badge.b{background:#dce9fb;color:#1e4f9b}.badge.o{background:#fdf0d9;color:#8a5a0c}.badge.r{background:#fde4e4;color:#9d2b2b}
.card{background:var(--card);border:1px solid var(--bd);border-radius:12px;padding:18px;margin-bottom:16px;box-shadow:0 1px 3px rgba(31,42,58,.04)}.card.narrow{max-width:640px}
.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:10px}.toolbar input,.toolbar select{width:auto;min-width:150px}
.inline{display:inline}.form .row-btn,.row-btn{display:flex;gap:10px;justify-content:flex-end;margin-top:16px}
.tablewrap{overflow-x:auto}.tbl{width:100%;border-collapse:collapse;font-size:14px}.tbl th,.tbl td{padding:8px 10px;border-bottom:1px solid var(--bd);text-align:left;vertical-align:top}
.tbl th{background:#f0f4fa;font-size:12.5px;text-transform:uppercase;letter-spacing:.02em;color:#4a5a73}.tbl.sm{font-size:12.5px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.cards,.stats{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:14px}.stat{background:#fff;border:1px solid var(--bd);border-radius:10px;padding:10px 18px;min-width:120px}.stat b{display:block;font-size:24px;color:var(--p)}.stat span{font-size:12.5px;color:var(--mu)}
.chk{list-style:none;padding:0;margin:0;columns:2}.chk li{padding:3px 0}.chk li:before{content:"\2714  ";color:var(--ok)}.chk li.n:before{content:"\2716  ";color:var(--er)}
.token{font:700 28px/1 ui-monospace,Consolas,monospace;letter-spacing:.2em;background:#fff8e6;border:2px dashed var(--wa);padding:6px 12px;border-radius:8px;display:inline-block}.token.sm{font-size:17px;padding:3px 8px}
.importbox{background:#f6f9fe;border:1px dashed #b9cbe6;border-radius:10px;padding:12px;margin-top:10px;font-size:14px}.importbox input[type=file],.importbox select{width:auto;margin:6px 6px 0 0}
.pager{display:flex;gap:4px;margin-top:12px}.pager a,.pager span{padding:4px 10px;border:1px solid var(--bd);border-radius:6px;text-decoration:none;font-size:13px}.pager .on{background:var(--p);color:#fff;border-color:var(--p)}
.sminput{width:220px;display:inline-block}.imgprev img{max-width:260px;display:block;border:1px solid var(--bd);border-radius:8px;margin-bottom:6px}
.kv{display:grid;grid-template-columns:140px 1fr;gap:6px 12px;margin:0 0 12px}.kv dt{color:var(--mu)}.kv dd{margin:0;font-weight:600}

/* --- layout admin --- */
body.adm{display:flex;min-height:100vh}.navtoggle{display:none}
.side{width:240px;background:#26456f;color:#fff;flex:none;position:sticky;top:0;height:100vh;overflow-y:auto}
.brand{padding:18px 18px 12px;border-bottom:1px solid rgba(255,255,255,.12)}.brand b{display:block;font-size:17px}.brand small{opacity:.7;font-size:12px}
.side nav{padding:10px 0}.side nav a{display:block;color:#d6e2f5;text-decoration:none;padding:10px 18px;border-left:3px solid transparent}
.side nav a:hover{background:rgba(255,255,255,.07)}.side nav a.on{background:rgba(255,255,255,.12);border-left-color:#8db8f5;color:#fff;font-weight:600}
.navsep{padding:14px 18px 4px;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#8fa9cf}
.mainwrap{flex:1;min-width:0}.top{display:flex;align-items:center;gap:12px;background:#fff;border-bottom:1px solid var(--bd);padding:10px 20px;position:sticky;top:0;z-index:5}
.top h1{font-size:18px;margin:0;flex:1}.who{display:flex;align-items:center;gap:10px;font-size:13px}.who em{color:var(--mu)}.burger{display:none;font-size:22px;cursor:pointer;margin:0}
.content{padding:20px}
@media(max-width:860px){.side{position:fixed;left:-250px;z-index:20;transition:left .2s}.navtoggle:checked~.side{left:0}.burger{display:block}.who span{display:none}.grid2{grid-template-columns:1fr}.chk{columns:1}}

/* --- login & peserta --- */
body.login,body.usr{background:#fff}
.lg-top{background:var(--p);color:#fff;text-align:center;padding:12px 10px;line-height:1.25}.lg-top b{display:block;font-size:17px;letter-spacing:.03em}.lg-top small{font-size:12px;opacity:.9}
.lg-wrap{min-height:calc(100vh - 120px);display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(180deg,#fff,#f3f6fb)}
.lg-card{width:100%;max-width:380px;background:#fff;border-radius:16px;box-shadow:0 10px 40px rgba(40,70,120,.14);padding:28px 30px;text-align:center}
.lg-card label{text-align:left}.lg-ic{width:62px;height:62px;border-radius:50%;background:var(--p);display:flex;align-items:center;justify-content:center;margin:0 auto 10px}
.lg-card h2{font-size:17px;letter-spacing:.04em;margin-bottom:2px}.lg-card .btn.big{margin-top:18px}
.pw{position:relative}.pw button{position:absolute;right:6px;top:5px;background:none;border:0;cursor:pointer;font-size:17px}
.lg-foot{text-align:center;padding:12px}.lg-foot span{display:inline-block;background:#f0f3f8;border-radius:99px;padding:4px 16px;font-size:11.5px;color:var(--mu)}
.usr-wrap{max-width:920px;margin:0 auto;padding:20px}.usr-wrap.narrow{max-width:520px}.tokin{font:700 24px ui-monospace,Consolas,monospace;letter-spacing:.25em;text-align:center;text-transform:uppercase}

/* --- halaman ujian --- */
body.exam{background:#f3f6fb;font-size:var(--fs)}
.ex-top{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--p);color:#fff;padding:8px 16px;position:sticky;top:0;z-index:10;flex-wrap:wrap}
.ex-title b{display:block;font-size:16px}.ex-title small{font-size:12px;opacity:.9}.ex-tools{display:flex;align-items:center;gap:6px}
.ex-tools button{background:rgba(255,255,255,.18);color:#fff;border:0;border-radius:6px;padding:4px 10px;font-weight:700;cursor:pointer}
.timer{background:#fff;color:var(--p2);font:700 17px ui-monospace,Consolas,monospace;padding:4px 12px;border-radius:8px;margin-left:8px}.timer.warn{background:#ffe3e3;color:#b42323;animation:bl 1s infinite}
@keyframes bl{50%{opacity:.6}}.net{font-size:11px;padding:2px 8px;border-radius:99px;background:rgba(255,255,255,.2)}.net.off{background:#e0912b}
.ex-body{display:flex;gap:16px;padding:16px;max-width:1280px;margin:0 auto;align-items:flex-start}.ex-main{flex:1;min-width:0;background:#fff;border:1px solid var(--bd);border-radius:12px;padding:18px 22px}
.ex-side{width:230px;flex:none;background:#fff;border:1px solid var(--bd);border-radius:12px;padding:14px;position:sticky;top:70px}
.q-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--bd);padding-bottom:8px;margin-bottom:12px;font-size:15px}.ragu{margin:0;font-weight:500;color:#8a5a0c;cursor:pointer}
.q-type{font-size:.72em;text-transform:uppercase;letter-spacing:.05em;color:var(--mu);margin-bottom:8px}.q-text{white-space:pre-line;margin-bottom:14px;line-height:1.6}
.q-img{max-width:100%;max-height:360px;border:1px solid var(--bd);border-radius:8px;margin-bottom:12px;cursor:zoom-in;display:block}
.opt{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--bd);border-radius:10px;padding:10px 12px;margin-bottom:8px;cursor:pointer}.opt:hover{background:#f4f8fe}.opt input{margin-top:.45em}.opt b{min-width:1.4em}
.opt.key{background:#e7f7ee;border-color:#8fd3b0}.opt em{margin-left:auto;font-style:normal;font-size:.75em;font-weight:700;color:#176b45}
table.bs{width:100%;border-collapse:collapse}.bs th,.bs td{border:1px solid var(--bd);padding:9px 10px;text-align:left}.bs th{background:#f0f4fa;font-size:.8em}.bs td.c,.bs th:not(:first-child){text-align:center;width:80px}
.jd{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-items:center;border:1px solid var(--bd);border-radius:10px;padding:8px 12px;margin-bottom:8px}.jd select{font-size:inherit}
.q-nav{display:flex;justify-content:space-between;gap:10px;margin-top:20px;border-top:1px solid var(--bd);padding-top:14px}
.grid{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}.grid button{border:1px solid var(--bd);background:#fff;border-radius:6px;padding:7px 0;font-weight:600;cursor:pointer}
.grid button.a{background:#cfeedd;border-color:#8fd3b0}.grid button.r{background:#fde7bd;border-color:#e0b25c}.grid button.c{outline:2px solid var(--p);background:var(--p);color:#fff}
.legend{font-size:11.5px;color:var(--mu);margin-top:10px}.lgd{display:inline-block;width:11px;height:11px;border-radius:3px;margin:0 3px 0 6px;vertical-align:-1px}.lgd.a{background:#8fd3b0}.lgd.r{background:#e0b25c}.lgd.c{background:var(--p)}
.loading{padding:40px;text-align:center;color:var(--mu)}.modal{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(15,25,40,.72);z-index:50;display:flex;align-items:center;justify-content:center;padding:16px}.modal[hidden]{display:none}
.mbox{background:#fff;border-radius:14px;padding:22px;max-width:440px;width:100%}.zbox{max-width:96vw;max-height:92vh;overflow:auto}.zbox img{max-width:94vw;max-height:88vh;cursor:zoom-in;background:#fff;border-radius:6px}.zbox img.z2{max-width:none;max-height:none;width:180%;cursor:zoom-out}
.zc{position:fixed;top:10px;right:16px;background:#fff;border:0;border-radius:50%;width:38px;height:38px;font-size:24px;cursor:pointer;z-index:51}
@media(max-width:860px){.ex-body{flex-direction:column-reverse}.ex-side{width:100%;position:static}.grid{grid-template-columns:repeat(8,1fr)}.jd{grid-template-columns:1fr}.ex-main{padding:14px}}

[hidden]{display:none!important}

.editor{background:#f8fafd;border:1px solid var(--bd);border-radius:10px;padding:12px}.ehint{font-size:13px;color:var(--mu);margin-bottom:10px}
.erow{display:flex;gap:8px;align-items:center;margin-bottom:8px}.erow input[type=text]{flex:1;min-width:0}.erow .let{width:1.8em;font-weight:700;color:var(--p);text-align:center;flex:none}
.erow .kk{flex:none;display:flex;align-items:center;gap:4px;margin:0;font-weight:500;font-size:13px;cursor:pointer}.erow .kk input{width:18px;height:18px}
.erow .bsr{flex:none;display:flex;gap:4px}.erow .bsr label{display:inline-flex;align-items:center;gap:4px;margin:0;font-weight:500;font-size:13px;border:1px solid var(--bd);border-radius:6px;padding:4px 8px;background:#fff;cursor:pointer}
.erow .arr{flex:none;color:var(--mu);font-weight:700}.erow .x{flex:none;background:#fff;border:1px solid var(--bd);color:var(--er);border-radius:6px;width:32px;height:32px;cursor:pointer;font-size:16px}
.erow .x[disabled]{opacity:.35;cursor:default}.esub{margin:14px 0 8px;font-weight:700;font-size:14px}.tpl{display:inline-flex;flex-wrap:wrap;gap:4px;align-items:center}
@media(max-width:600px){.erow{flex-wrap:wrap}}

.importbox label.inl{display:inline-flex;align-items:center;gap:5px;margin:6px 14px 6px 0;font-weight:500}
.pv .q-opts{margin-top:6px}