:root{
  --bg:#f4f6fb; --card:#ffffff; --ink:#0f172a; --muted:#64748b;
  --line:#e2e8f0; --accent:#2563eb; --accent-dark:#1d4ed8;
  --green:#16a34a; --green-bg:#dcfce7; --yellow:#ca8a04; --yellow-bg:#fef9c3;
  --red:#dc2626; --red-bg:#fee2e2; --gray:#94a3b8;
  --radius:12px; --shadow:0 1px 2px rgba(15,23,42,.06),0 4px 16px rgba(15,23,42,.06);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;overflow-x:clip}
img,svg{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.topbar-inner{max-width:1160px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{background:var(--accent);color:#fff;font-weight:800;font-size:14px;padding:8px 10px;border-radius:10px;letter-spacing:.5px}
.brand-text{font-weight:800;font-size:16px;letter-spacing:.3px;display:flex;flex-direction:column;line-height:1.1}
.brand-text small{font-weight:500;color:var(--muted);font-size:11px;letter-spacing:.6px}
.topnav{display:flex;gap:4px;margin-left:auto}
.topnav a{padding:8px 12px;border-radius:8px;font-size:14px;font-weight:500;color:#334155}
.topnav a.active,.topnav a:hover{background:#eff6ff;color:var(--accent)}
.hamburger{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:8px;padding:6px 10px;font-size:18px;cursor:pointer}
.view{max-width:1160px;margin:0 auto;padding:24px 20px 60px;min-height:70vh}
.footer{text-align:center;color:var(--muted);font-size:12px;padding:18px;border-top:1px solid var(--line);background:#fff}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.pad{padding:20px}
.hero{display:flex;gap:20px;align-items:flex-start;justify-content:space-between;margin-bottom:20px}
.hero h1{margin:0 0 6px;font-size:clamp(22px,4vw,28px)}
.hero p{margin:0;color:var(--muted);font-size:clamp(13px,2vw,14px);max-width:640px;line-height:1.6}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:#fff;color:var(--ink);padding:10px 16px;border-radius:10px;font-weight:600;font-size:14px;cursor:pointer;transition:.15s;min-height:40px;touch-action:manipulation}
.btn:hover{border-color:#cbd5e1;background:#f8fafc}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-danger{background:var(--red);border-color:var(--red);color:#fff}
.btn-sm{padding:7px 11px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.55;cursor:not-allowed}
.grid-subjects{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.subj-card{padding:18px;display:flex;flex-direction:column;gap:8px}
.subj-top{display:flex;align-items:center;gap:10px}
.subj-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:16px}
.subj-card h3{margin:0;font-size:15px}
.subj-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}
.subj-meta{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0}
.pill{font-size:12px;background:#f1f5f9;border:1px solid var(--line);padding:3px 9px;border-radius:999px;color:#475569}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0}
.stat{padding:16px}
.stat b{font-size:22px;display:block}
.stat span{font-size:12px;color:var(--muted)}
.section-title{font-size:16px;font-weight:700;margin:22px 0 12px}
.hist-list{display:grid;gap:10px}
.hist-item{display:flex;align-items:center;gap:14px;padding:14px 16px}
.hist-score{width:52px;height:52px;border-radius:12px;background:#eff6ff;color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;flex-shrink:0}
.hist-score.low{background:var(--red-bg);color:var(--red)}
.hist-score.mid{background:var(--yellow-bg);color:#a16207}
.hist-main{flex:1}.hist-main b{font-size:14px}.hist-main div{font-size:12px;color:var(--muted)}
.badge{font-size:11px;font-weight:700;padding:3px 8px;border-radius:999px;background:#f1f5f9;border:1px solid var(--line)}
.badge.ok{background:var(--green-bg);color:#15803d;border-color:#bbf7d0}
.badge.warn{background:var(--yellow-bg);color:#854d0e;border-color:#fde68a}
.badge.err{background:var(--red-bg);color:#b91c1c;border-color:#fecaca}
/* setup */
.two-col{display:grid;grid-template-columns:1fr 340px;gap:16px;align-items:start}
label.lbl{display:block;font-size:13px;font-weight:600;margin:14px 0 6px}
select,input[type=text],input[type=number],textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:14px;font-family:inherit;background:#fff;color:var(--ink)}
textarea{min-height:120px;resize:vertical;line-height:1.6}
textarea.code{font-family:ui-monospace,Consolas,monospace;font-size:13px}
select:focus,input:focus,textarea:focus{outline:2px solid #bfdbfe;border-color:var(--accent)}
.radio-row{display:flex;gap:8px;flex-wrap:wrap}
.radio-pill{border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:13px;font-weight:600;cursor:pointer;background:#fff}
.radio-pill.sel{background:var(--accent);color:#fff;border-color:var(--accent)}
.hint{font-size:12px;color:var(--muted);line-height:1.6}
.warn-box{background:#fffbeb;border:1px solid #fde68a;color:#92400e;padding:12px 14px;border-radius:10px;font-size:13px;line-height:1.6}
.err-box{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;padding:12px 14px;border-radius:10px;font-size:13px;line-height:1.6}
.ok-box{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;padding:12px 14px;border-radius:10px;font-size:13px;line-height:1.6}
/* simulation */
.sim-shell{display:grid;grid-template-columns:1fr 300px;gap:16px;align-items:start}
.sim-header{position:sticky;top:57px;z-index:20;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px;display:flex;align-items:center;gap:16px;margin-bottom:14px;box-shadow:var(--shadow)}
.sim-header .subj{font-weight:800;font-size:14px}
.sim-header .timer{margin-left:auto;font-variant-numeric:tabular-nums;font-weight:800;font-size:18px;background:#0f172a;color:#fff;padding:6px 14px;border-radius:10px}
.sim-header .timer.danger{background:var(--red);animation:blink 1s infinite}
.sim-header .timer.warn{background:#b45309}
.timer-box{display:flex;flex-direction:column;align-items:flex-end;gap:2px}
.timer-label{font-size:10px;font-weight:700;letter-spacing:1.2px;color:var(--muted)}
.pace{font-size:12px;color:var(--muted);font-weight:500;margin-top:2px}
/* Mode waktu */
.mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:4px}
.mode-card{border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:#fff;cursor:pointer;text-align:left;display:flex;flex-direction:column;gap:5px;font-family:inherit;color:var(--ink)}
.mode-card:hover{border-color:var(--accent)}
.mode-card.sel{border-color:var(--accent);background:#eff6ff;box-shadow:0 0 0 1px var(--accent) inset}
.mode-card b{font-size:13px}
.mode-card .mode-time{font-size:14px;font-weight:800;color:var(--accent)}
.mode-card .hint{margin:0}
@keyframes blink{50%{opacity:.75}}
.progress{font-size:13px;color:var(--muted);font-weight:600}
.q-card{padding:22px}
.q-meta{display:flex;gap:8px;align-items:center;margin-bottom:10px;flex-wrap:wrap}
.q-num{font-weight:800;font-size:13px;color:var(--accent);background:#eff6ff;padding:4px 10px;border-radius:999px}
.q-text{font-size:clamp(15px,2.4vw,16px);line-height:1.7;margin:8px 0 16px;white-space:pre-wrap;overflow-wrap:anywhere}
.opt{display:flex;gap:12px;align-items:flex-start;border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:10px;cursor:pointer;transition:.12s;background:#fff}
.opt:hover{border-color:var(--accent);background:#f8fbff}
.opt.sel{border-color:var(--accent);background:#eff6ff;box-shadow:0 0 0 1px var(--accent) inset}
.opt .key{width:30px;height:30px;border-radius:50%;border:1.5px solid #cbd5e1;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;flex-shrink:0;background:#fff}
.opt.sel .key{background:var(--accent);border-color:var(--accent);color:#fff}
.opt .txt{font-size:14px;line-height:1.6;padding-top:5px}
.opt input{margin-top:8px;width:17px;height:17px;accent-color:var(--accent)}
.tf-table{width:100%;border-collapse:collapse;font-size:14px}
.tf-table th,.tf-table td{border:1px solid var(--line);padding:10px 12px;text-align:left;overflow-wrap:anywhere}
.tf-table th{background:#f8fafc;font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted)}
.tf-table td.c{text-align:center;width:90px}
.q-card,.rev-item,.modal,.result-hero,.pad{overflow-x:auto}
.opt .txt{min-width:0;overflow-wrap:anywhere}
.tf-btn{border:1.5px solid #cbd5e1;background:#fff;border-radius:50%;width:30px;height:30px;cursor:pointer;font-size:15px;line-height:1;color:#94a3b8}
.tf-btn.sel{background:var(--green);border-color:var(--green);color:#fff}
.sim-nav{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap;align-items:center}
.sim-nav .spacer{flex:1}
.sim-single{max-width:840px;margin:0 auto}
.sim-header-actions{display:flex;gap:8px;align-items:center;margin-left:auto}
.btn-list{background:#0f172a;border-color:#0f172a;color:#fff}
.btn-list:hover{background:#1e293b}
/* Panel Daftar Soal (drawer/modal di atas halaman simulasi, timer tetap jalan) */
.navpanel-back{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:90;display:flex;align-items:center;justify-content:center;padding:16px}
.navpanel{background:#fff;border-radius:14px;max-width:560px;width:100%;max-height:86vh;display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.28);overflow:hidden}
.navpanel-head{display:flex;align-items:center;gap:10px;padding:16px 18px 10px}
.navpanel-head b{font-size:15px}
.navpanel-sub{padding:0 18px;font-size:12px;color:var(--muted)}
.navpanel-grid{padding:14px 18px;overflow:auto}
.navpanel-grid .num-grid{margin-top:0;grid-template-columns:repeat(5,1fr)}
.navpanel-foot{padding:12px 18px 16px;border-top:1px solid var(--line);display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.num .mi{font-size:11px;font-weight:800;margin-right:2px}
.num.cur{outline:2.5px solid var(--accent);outline-offset:1px;background:#fff;color:var(--accent)}
.num.cur.answered{background:var(--green);color:#fff;outline-color:#0f172a}
.num.cur.marked{outline-color:#0f172a}
.side-card{padding:16px;position:sticky;top:140px}
.num-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:12px}
.num{aspect-ratio:1;border-radius:9px;border:1px solid var(--line);background:#f1f5f9;color:#475569;font-weight:700;font-size:13px;cursor:pointer}
.num.cur{outline:2px solid var(--accent);background:#fff;color:var(--accent)}
.num.answered{background:var(--green);border-color:var(--green);color:#fff}
.num.marked{background:#eab308;border-color:#ca8a04;color:#fff;position:relative}
.num.answered.marked{background:linear-gradient(135deg,var(--green) 55%,#eab308 55%)}
.legend{display:flex;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-top:12px}
.dot{width:12px;height:12px;border-radius:4px;display:inline-block;margin-right:4px;vertical-align:middle}
/* result */
.result-hero{text-align:center;padding:28px 20px}
.score-big{font-size:clamp(44px,10vw,64px);font-weight:800;line-height:1;margin:6px 0}
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0}
.rev-item{padding:18px;margin-bottom:12px}
.rev-correct{border-left:5px solid var(--green)}
.rev-wrong{border-left:5px solid var(--red)}
.rev-empty{border-left:5px solid var(--gray)}
table.mini{width:100%;border-collapse:collapse;font-size:13px;margin-top:10px}
table.mini th,table.mini td{border:1px solid var(--line);padding:8px 10px;text-align:left}
table.mini th{background:#f8fafc}
/* bank */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}
.toolbar input,.toolbar select{width:auto;min-width:160px;flex:1}
.qrow{padding:14px 16px;margin-bottom:10px}
.qrow h4{margin:0 0 6px;font-size:14px;line-height:1.5}
.modal-back{position:fixed;inset:0;background:rgba(15,23,42,.5);display:flex;align-items:center;justify-content:center;z-index:100;padding:16px}
.modal{background:#fff;border-radius:14px;max-width:640px;width:100%;max-height:90vh;overflow:auto;padding:22px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal h3{margin:0 0 12px}
#toastRoot{position:fixed;bottom:18px;right:18px;display:flex;flex-direction:column;gap:8px;z-index:200}
.toast{background:#0f172a;color:#fff;padding:11px 16px;border-radius:10px;font-size:13px;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.type-tabs{display:flex;gap:8px;margin:10px 0}
.type-tabs button{flex:1}
pre.ex{background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:12px;font-size:12px;overflow:auto;line-height:1.6}
@media(max-width:960px){
  .grid-subjects{grid-template-columns:1fr 1fr}
  .two-col,.sim-shell{grid-template-columns:1fr}
  .side-card{position:static}
  .stats,.result-grid{grid-template-columns:1fr 1fr}
  .topnav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:10px;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(15,23,42,.08)}
  .topnav.open{display:flex}
  .topnav a{padding:12px;font-size:15px}
  .topbar-inner{position:relative}
  .hamburger{display:block}
  .hero{flex-direction:column}
  .sim-header{top:57px;flex-wrap:wrap}
  .toolbar input,.toolbar select{width:100%;min-width:0}
  .navpanel{max-width:100%;max-height:92vh}
  .navpanel-grid .num-grid{grid-template-columns:repeat(5,1fr)}
}
/* HP kecil: target sentuh besar, tidak ada scroll horizontal halaman */
@media(max-width:640px){
  .view{padding:16px 12px 48px}
  .topbar-inner{padding:10px 12px;gap:10px}
  .brand-mark{font-size:12px;padding:7px 9px}
  .brand-text{font-size:14px}
  .pad{padding:16px}
  .grid-subjects{grid-template-columns:1fr}
  .stats{gap:10px;margin:14px 0}
  .stat{padding:12px}
  .stat b{font-size:18px}
  .hist-item{padding:12px;gap:10px;flex-wrap:wrap}
  .hist-score{width:44px;height:44px;font-size:15px}
  .hist-main{flex:1 1 60%}
  .mode-grid{grid-template-columns:1fr}
  .result-grid{grid-template-columns:1fr 1fr;gap:10px}
  .result-hero{padding:20px 12px}
  .sim-header{top:53px;padding:10px 12px;gap:10px}
  .sim-header .subj{font-size:13px}
  .sim-header .timer{font-size:16px;padding:6px 12px}
  .sim-header-actions{margin-left:0;width:100%;justify-content:space-between}
  .q-card{padding:16px 14px}
  .q-meta{gap:6px}
  .opt{padding:12px;gap:10px}
  .opt .txt{font-size:14px}
  .tf-table{font-size:13px;min-width:440px}
  .tf-table th,.tf-table td{padding:8px}
  .tf-table td.c{width:64px}
  .tf-btn{width:36px;height:36px;font-size:16px}
  table.mini{font-size:12px;min-width:440px}
  table.mini th,table.mini td{padding:6px 8px}
  .result-hero table.mini,.modal table.mini{margin-left:0}
  .sim-nav .btn{flex:1 1 auto;padding:12px 10px}
  .sim-nav .spacer{display:none}
  .radio-pill{padding:10px 16px}
  .num-grid{gap:6px}
  .num{font-size:12px;min-height:40px}
  .navpanel-back{padding:10px}
  .navpanel-head,.navpanel-sub{padding-left:12px;padding-right:12px}
  .navpanel-grid{padding:12px}
  .navpanel-foot{padding:10px 12px 12px}
  .modal-back{padding:10px}
  .modal{padding:16px}
  .type-tabs{flex-wrap:wrap}
  #toastRoot{left:12px;right:12px;bottom:12px}
  .toast{text-align:center}
  .footer{font-size:11px;padding:14px 12px}
  pre.ex{font-size:11px}
  /* cegah auto-zoom iOS saat input disentuh */
  select,input[type=text],input[type=number],textarea{font-size:16px}
}