:root{
  --bg:#0f1720; --card:#182430; --card2:#1f2e3d; --line:#2b3d4f;
  --text:#e8f0f7; --muted:#93a7b8; --accent:#2dd4bf; --accent2:#38bdf8;
  --ok:#22c55e; --bad:#ef4444; --warn:#f59e0b;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;overflow-x:hidden;max-width:100%}
body{
  background:linear-gradient(180deg,#0b1119,#0f1720 40%);
  color:var(--text); font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  min-height:100vh; display:flex; flex-direction:column; line-height:1.5;
}
a{color:var(--accent2)}
.topbar{
  display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
  padding:14px 18px; background:rgba(15,23,32,.9); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line); position:sticky; top:0; z-index:20;
}
.brand{display:flex; align-items:center; gap:12px}
.logo{font-size:28px}
.brand-title{font-weight:700; font-size:16px}
.brand-sub{font-size:12px; color:var(--muted)}
.nav{display:flex; gap:8px; flex-wrap:wrap; justify-content:flex-end; align-items:center}
.navbtn{
  background:var(--card); color:var(--text); border:1px solid var(--line);
  padding:8px 14px; border-radius:10px; font-size:14px; cursor:pointer;
}
.navbtn:hover{border-color:var(--accent)}
.navbtn.active{background:var(--accent); color:#04202a; border-color:var(--accent); font-weight:700}
main{flex:1; width:100%; max-width:860px; margin:0 auto; padding:18px; min-width:0}
.footer{padding:18px; text-align:center; color:var(--muted); font-size:12px; border-top:1px solid var(--line)}
.muted{color:var(--muted)}

h1{font-size:22px; margin:8px 0 4px}
h2{font-size:18px; margin:18px 0 10px}
.cat-label{font-size:13px; text-transform:uppercase; letter-spacing:.08em; color:var(--accent); margin:22px 0 8px; font-weight:700}

.grid{display:grid; grid-template-columns:1fr; gap:12px}
@media(min-width:640px){.grid{grid-template-columns:1fr 1fr}}

.card{
  background:var(--card); border:1px solid var(--line); border-radius:14px; padding:16px;
  transition:transform .12s ease, border-color .12s ease;
}
.card.clickable{cursor:pointer}
.card.clickable:hover{transform:translateY(-2px); border-color:var(--accent)}
.card h3{margin:0 0 6px; font-size:16px}
.pill{display:inline-block; font-size:12px; padding:3px 10px; border-radius:999px; background:var(--card2); color:var(--muted); margin-right:6px; margin-top:6px}
.pill.on-acc{background:rgba(45,212,191,.15); color:var(--accent)}

.btn{
  background:var(--accent); color:#04202a; border:0; padding:12px 18px; border-radius:12px;
  font-weight:700; font-size:15px; cursor:pointer;
}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent; color:var(--text); border:1px solid var(--line)}
.btn.ghost:hover{border-color:var(--accent)}
.btn:disabled{opacity:.4; cursor:not-allowed}
.btnrow{display:flex; gap:10px; flex-wrap:wrap; margin-top:16px}

.progresswrap{height:8px; background:var(--card2); border-radius:999px; overflow:hidden; margin:10px 0 18px}
.progressbar{height:100%; width:0; background:linear-gradient(90deg,var(--accent),var(--accent2)); transition:width .25s ease}

.qbox{background:var(--card); border:1px solid var(--line); border-radius:16px; padding:18px}
.qmeta{font-size:13px; color:var(--muted); margin-bottom:6px}
.qtext{font-size:17px; font-weight:600; margin:6px 0 14px}
.qimg{max-width:100%; border-radius:12px; border:1px solid var(--line); margin:10px 0}
.imgcap{font-size:12.5px; line-height:1.5; color:var(--muted,#8a8f98); background:rgba(127,127,127,.07); border-left:3px solid var(--accent); border-radius:8px; padding:8px 10px; margin:0 0 10px}

.opt{
  display:block; width:100%; text-align:left; background:var(--card2); color:var(--text);
  border:1px solid var(--line); border-radius:12px; padding:13px 15px; margin-bottom:10px;
  font-size:15px; cursor:pointer; transition:border-color .1s ease, background .1s ease;
}
.opt:hover{border-color:var(--accent)}
.opt.selected{border-color:var(--accent); background:rgba(45,212,191,.12)}
.opt .key{display:inline-block; width:24px; font-weight:700; color:var(--accent)}

.qdots{display:flex; flex-wrap:wrap; gap:6px; margin:0 0 14px}
.dot{display:inline-flex; align-items:center; justify-content:center; min-width:28px; height:28px; padding:0 6px;
  font-size:12px; font-weight:600; border-radius:8px; border:1px solid var(--line);
  background:var(--card2); color:var(--muted); cursor:pointer; transition:all .1s ease}
.dot:hover{border-color:var(--accent); color:var(--text)}
.dot.done{background:rgba(45,212,191,.18); border-color:var(--accent); color:var(--text)}
.dot.cur{border-color:var(--accent2); box-shadow:0 0 0 2px rgba(56,189,248,.35); color:var(--text)}
.dot.doubt{border-color:#f59e0b; background:rgba(245,158,11,.18); color:#f8b84e}
.btn.on{background:#f59e0b; color:#2a1b00; border-color:#f59e0b}

/* ujian: timer + peringatan + modal peraturan */
.qmeta.qtop{display:flex; align-items:center; gap:8px; flex-wrap:wrap}
.exam-timer{margin-left:auto; font-variant-numeric:tabular-nums; font-weight:700; font-size:14px;
  background:var(--card2); border:1px solid var(--line); border-radius:10px; padding:4px 11px; color:var(--accent)}
.exam-timer.low{color:#fff; background:var(--bad); border-color:var(--bad); animation:pulse 1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.55}}
.exam-warn{background:rgba(245,158,11,.12); border:1px solid rgba(245,158,11,.45); color:#f8c66b;
  border-radius:12px; padding:10px 13px; font-size:13px; margin:0 0 12px}
.exam-warn b{color:#fbbf24}
.overlay{position:fixed; inset:0; background:rgba(4,8,12,.78); backdrop-filter:blur(3px);
  display:flex; align-items:center; justify-content:center; padding:18px; z-index:100;
  overflow-y:auto; overscroll-behavior:contain}
.modal{background:var(--card); border:1px solid var(--line); border-radius:18px; padding:22px;
  max-width:520px; width:100%; min-width:0; max-height:90vh; overflow:auto; margin:auto;
  overflow-wrap:anywhere; word-break:break-word; box-shadow:0 20px 60px rgba(0,0,0,.5)}
.modal h2{overflow-wrap:anywhere}
.modalbody{font-size:14.5px}
.modalbody ul{margin:10px 0; padding-left:20px}
.modalbody li{margin-bottom:6px}
.modal .btnrow .btn{flex:1 1 auto; min-width:0}

/* hasil */
.scorehero{text-align:center; padding:26px 16px; background:var(--card); border:1px solid var(--line); border-radius:18px}
.scorebig{font-size:46px; font-weight:800; margin:6px 0}
.scorebig.pass{color:var(--ok)} .scorebig.fail{color:var(--warn)}
.reviewitem{background:var(--card); border:1px solid var(--line); border-left:5px solid var(--line); border-radius:14px; padding:16px; margin-bottom:14px}
.reviewitem.correct{border-left-color:var(--ok)}
.reviewitem.wrong{border-left-color:var(--bad)}
.ansline{font-size:14px; margin:6px 0}
.ansline .good{color:var(--ok); font-weight:600}
.ansline .bad{color:var(--bad); font-weight:600}
.explain{background:var(--card2); border-radius:10px; padding:12px; margin-top:10px; font-size:14px}
.explain b{color:var(--accent)}
.explain .mline{margin:6px 0}
.explain .mline.bul{padding-left:20px; text-indent:-20px}

/* materi: body rapi (paragraf + bullet + bold) */
.materi-body{font-size:15px; line-height:1.72; overflow-wrap:anywhere; word-break:break-word}
.materi-body .mline{margin:0 0 13px}
.materi-body .mline:last-child{margin-bottom:0}
.materi-body .mline.bul{margin:0 0 9px; padding-left:22px; text-indent:-22px}
.materi-body strong{color:var(--accent); font-weight:700}
.card .materi-body{margin-top:6px}

.note{background:var(--card2); border:1px dashed var(--line); border-radius:12px; padding:14px; font-size:14px; color:var(--muted)}
input,select{
  width:100%; padding:12px 14px; border-radius:12px; border:1px solid var(--line);
  background
:var(--card2); color:var(--text); font-size:15px; margin-bottom:10px;
}
label{font-size:13px; color:var(--muted); display:block; margin-bottom:5px}
.hero{padding:22px 4px}
.hero p{color:var(--muted)}
.userchip{display:inline-flex; align-items:center; gap:8px; font-size:13px; color:var(--muted)}
.chipx{background:var(--card2); color:var(--text); border:1px solid var(--line); border-radius:8px; padding:4px 9px; font-size:12px; cursor:pointer}
.chipx:hover{border-color:var(--accent)}
.msg{margin-top:12px; font-size:14px}
.msg.bad{color:var(--bad)}
.msg.good{color:var(--ok)}
.price{font-size:24px; font-weight:800; color:var(--accent); margin:4px 0 6px}
.badge{display:inline-block; font-size:12px; padding:2px 9px; border-radius:999px; font-weight:600}
.badge.pending{background:rgba(245,158,11,.18); color:var(--warn)}
.badge.approved{background:rgba(34,197,94,.18); color:var(--ok)}
.badge.rejected{background:rgba(239,68,68,.18); color:var(--bad)}
.payrow{display:flex; gap:12px; align-items:center; flex-wrap:wrap; background:var(--card); border:1px solid var(--line); border-radius:10px; padding:10px 12px; margin-bottom:8px; font-size:14px}
input[type=file]{padding:10px; background:var(--card2); border:1px dashed var(--line); border-radius:10px; width:100%; color:var(--muted)}

/* papan peringkat (leaderboard) */
.lbrow{display:flex; align-items:center; gap:12px; background:var(--card); border:1px solid var(--line); border-radius:12px; padding:11px 14px; margin-bottom:8px}
.lbrow.me{border-color:var(--accent); background:rgba(45,212,191,.10)}
.lbrank{min-width:34px; text-align:center; font-weight:800; font-size:15px; color:var(--muted)}
.lbrank.top1{color:#fbbf24} .lbrank.top2{color:#cbd5e1} .lbrank.top3{color:#d97706}
.lbname{flex:1; font-size:15px; font-weight:600; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.lbscore{font-weight:800; color:var(--accent); font-size:16px}
.lbmeta{font-size:12px; color:var(--muted); white-space:nowrap}
.lbfilter{display:flex; gap:8px; flex-wrap:wrap; margin:10px 0}
.lbfilter .navbtn.active{background:var(--accent); color:#04202a; font-weight:700}

/* dashboard member area */
.mhead{display:flex; align-items:center; gap:14px; padding:20px 4px 10px}
.avatar{width:62px; height:62px; border-radius:50%; flex:none; display:flex; align-items:center; justify-content:center;
  font-size:26px; font-weight:800; color:#04202a; background:linear-gradient(135deg,var(--accent),var(--accent2))}
.mhead-info h1{margin:0; font-size:22px}
.mstats{display:grid; grid-template-columns:repeat(2,1fr); gap:12px; margin:14px 0 18px}
@media(min-width:720px){.mstats{grid-template-columns:repeat(4,1fr)}}
.mstat{background:linear-gradient(160deg,var(--card),var(--card2)); border:1px solid var(--line);
  border-radius:16px; padding:16px; text-align:center}
.mstat b{display:block; font-size:26px; font-weight:800; color:var(--accent)}
.mstat span{color:var(--muted); font-size:12.5px}
.histrow{display:flex; align-items:center; gap:12px; background:var(--card); border:1px solid var(--line);
  border-radius:12px; padding:12px 14px; margin-bottom:8px}
.histname{flex:1; font-weight:600; font-size:14.5px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.histmeta{color:var(--muted); font-size:12.5px; white-space:nowrap}
.histscore{font-weight:800; font-size:17px; min-width:38px; text-align:right}
.histscore.pass{color:var(--ok)} .histscore.fail{color:var(--warn)}

/* ---------- leaderboard: podium + bar chart ---------- */
.lbchart{margin:6px 0 18px}
.podium{display:flex; align-items:flex-end; justify-content:center; gap:14px; margin:16px 0 6px}
.pod{flex:1; max-width:150px; text-align:center}
.pod .pmedal{font-size:30px; line-height:1}
.pod .pname{font-size:13.5px; font-weight:700; margin:6px 0 2px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.pod .pscore{font-size:14px; color:var(--muted)}
.pod .pbar{margin-top:8px; border-radius:12px 12px 0 0; background:linear-gradient(180deg,rgba(45,212,191,.85),rgba(56,189,248,.55)); border:1px solid var(--line); border-bottom:0}
.pod.p1 .pbar{height:110px} .pod.p2 .pbar{height:80px} .pod.p3 .pbar{height:62px}
.pod.p1 .pmedal{filter:drop-shadow(0 0 10px rgba(251,191,36,.6))}
.pod.me .pname{color:var(--accent)}
.lbbars{display:flex; flex-direction:column; gap:7px; margin-top:10px}
.lbbar{display:flex; align-items:center; gap:10px}
.lbbar .brank{min-width:26px; text-align:right; font-size:12.5px; color:var(--muted); font-weight:700}
.lbbar .bname{min-width:96px; max-width:130px; font-size:13px; font-weight:600; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.lbbar .btrack{flex:1; background:rgba(127,127,127,.12); border-radius:8px; height:16px; overflow:hidden}
.lbbar .bfill{height:100%; border-radius:8px; background:linear-gradient(90deg,var(--accent),var(--accent2)); transition:width .5s ease}
.lbbar .bval{min-width:34px; text-align:right; font-size:12.5px; font-weight:800; color:var(--accent)}
.lbbar.me .bname{color:var(--accent)}
.lbbar.me .bfill{background:linear-gradient(90deg,#fbbf24,#f59e0b)}