/* AM Qbank — professional, exam-serious theme */
:root{
  --bg:#f5f6f8; --surface:#ffffff; --ink:#182338; --muted:#5d6779;
  --accent:#1e50c8; --accent-dark:#173ea3; --accent-soft:#e9effe;
  --border:#e2e6ee; --good:#177245; --good-soft:#e6f4ec;
  --bad:#b3261e; --bad-soft:#fbe9e7; --warn:#8a5a00; --warn-soft:#fdf3e0;
  --radius:10px; --shadow:0 1px 3px rgba(16,24,40,.08);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.55}
h1,h2,h3,h4{margin:0 0 .5rem;line-height:1.3}
.hidden{display:none!important}
.muted{color:var(--muted)} .small{font-size:.85rem}
.link{background:none;border:0;color:var(--accent);cursor:pointer;font-size:.9rem;padding:0}
.link:hover{text-decoration:underline}

/* Top bar */
#topbar{display:flex;align-items:center;gap:1rem;background:var(--surface);
  border-bottom:1px solid var(--border);padding:.6rem 1.2rem;position:sticky;top:0;z-index:50}
.brand{display:flex;align-items:center;gap:.6rem}
.brand-mark{background:var(--accent);color:#fff;font-weight:700;border-radius:8px;
  width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;font-size:.95rem}
.brand.big .brand-mark{width:52px;height:52px;font-size:1.3rem}
.brand-logo{width:38px;height:38px;border-radius:10px;object-fit:cover;flex:none}
.brand a.brand-home{display:inline-flex;align-items:center;gap:.6rem;text-decoration:none;color:inherit}
.brand-name{font-weight:700;font-size:1.05rem}
.brand-name em{display:block;font-style:normal;font-weight:400;font-size:.72rem;color:var(--muted)}
.topnav{display:flex;gap:.25rem;margin-left:1rem}
.navlink{background:none;border:0;padding:.5rem .8rem;border-radius:8px;cursor:pointer;
  font-size:.95rem;color:var(--ink)}
.navlink:hover{background:var(--accent-soft)}
.userbox{margin-left:auto;display:flex;align-items:center;gap:.7rem;font-size:.92rem}

/* Layout */
#app{max-width:1080px;margin:0 auto;padding:1.4rem 1rem 4rem}
.view{animation:none}
.page-head{margin-bottom:1rem}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:1.1rem 1.2rem;margin-bottom:1rem}
.card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:.6rem}
.card-head h3{margin:0;font-size:1.02rem}

/* Buttons */
.btn{border:1px solid var(--border);background:var(--surface);color:var(--ink);
  border-radius:8px;padding:.55rem 1rem;font-size:.95rem;cursor:pointer}
.btn:hover{background:#f0f2f6}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-dark)}
.btn.big{font-size:1.05rem;padding:.75rem 1.6rem}
.btn.block{width:100%}
.btn.small{font-size:.85rem;padding:.35rem .7rem}
.btn.danger-outline{color:var(--bad);border-color:#e5b8b4}
.btn.danger-outline:hover{background:var(--bad-soft)}
.btn:disabled{opacity:.55;cursor:default}
.btn-row{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:1rem}

/* Forms */
label{display:block;margin-bottom:.8rem;font-size:.95rem}
input[type=email],input[type=password],input[type=text],input[type=number],textarea{
  width:100%;border:1px solid var(--border);border-radius:8px;padding:.6rem .75rem;
  font-size:1rem;margin-top:.25rem;font-family:inherit;color:var(--ink);background:#fff}
textarea{resize:vertical}
input:focus,textarea:focus{outline:2px solid var(--accent-soft);border-color:var(--accent)}
.num-input{max-width:140px}
.form-error{color:var(--bad);font-size:.9rem;min-height:1.2rem;margin:.4rem 0}
.tabs{display:flex;gap:.4rem;margin:1rem 0}
.tab{flex:1;border:1px solid var(--border);background:#f0f2f6;border-radius:8px;
  padding:.55rem;cursor:pointer;font-size:.95rem}
.tab.active{background:var(--surface);border-color:var(--accent);color:var(--accent);font-weight:600}
.auth-card{max-width:420px;margin:4rem auto;background:var(--surface);border:1px solid var(--border);
  border-radius:14px;box-shadow:var(--shadow);padding:2rem;text-align:center}
.auth-form{text-align:left;margin-top:.5rem}
.tos-check{display:flex;gap:.5rem;align-items:flex-start;font-size:.85rem;color:var(--muted);margin:.6rem 0}
.tos-check input{margin-top:.2rem;flex:none}

/* Stats */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.7rem;margin-bottom:1rem}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:.85rem .9rem}
.stat .v{font-size:1.5rem;font-weight:700}
.stat .l{font-size:.82rem;color:var(--muted)}
.stat.good .v{color:var(--good)} .stat.bad .v{color:var(--bad)}
.progress{background:#e8ebf1;border-radius:99px;height:10px;overflow:hidden}
.progress.slim{height:6px;min-width:120px}
.progress>div{background:var(--accent);height:100%;border-radius:99px;transition:width .2s}

/* Tables */
table.grid{width:100%;border-collapse:collapse;font-size:.93rem}
table.grid th,table.grid td{text-align:left;padding:.55rem .6rem;border-bottom:1px solid var(--border)}
table.grid th{color:var(--muted);font-weight:600;font-size:.82rem;text-transform:uppercase;letter-spacing:.03em}
table.grid tr:last-child td{border-bottom:0}
.bar{height:8px;background:#e8ebf1;border-radius:99px;overflow:hidden;min-width:90px}
.bar>div{height:100%;background:var(--accent);border-radius:99px}
.pill{display:inline-block;padding:.1rem .55rem;border-radius:99px;font-size:.78rem;font-weight:600}
.pill.good{background:var(--good-soft);color:var(--good)}
.pill.bad{background:var(--bad-soft);color:var(--bad)}
.pill.warn{background:var(--warn-soft);color:var(--warn)}
.pill.info{background:var(--accent-soft);color:var(--accent)}

/* Setup */
.radio-row{display:grid;grid-template-columns:1fr 1fr;gap:.7rem}
.radio{border:1px solid var(--border);border-radius:var(--radius);padding:.8rem;cursor:pointer;
  display:flex;gap:.6rem;align-items:flex-start;margin:0}
.radio input{margin-top:.25rem}
.radio small{display:block;color:var(--muted)}
.check-row{display:flex;flex-wrap:wrap;gap:.4rem 1.2rem}
.check{display:flex;gap:.45rem;align-items:center;margin:0;cursor:pointer}
.check-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.35rem}
.check-grid .check{font-size:.93rem}

/* Question */
.q-topbar{display:flex;justify-content:space-between;align-items:center;gap:1rem;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:.6rem .9rem;margin-bottom:1rem;position:sticky;top:57px;z-index:40}
.q-pos{display:flex;align-items:center;gap:.8rem;font-weight:600}
.q-controls{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.timer{font-variant-numeric:tabular-nums;font-weight:600;background:#f0f2f6;
  border-radius:6px;padding:.25rem .6rem;font-size:.9rem}
.q-layout{display:grid;grid-template-columns:1fr;gap:1rem}
.q-layout.with-nav{grid-template-columns:1fr 260px}
.q-main{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:1.4rem}
.q-main.narrow{max-width:860px}
.q-tags{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:.6rem}
.tag{background:var(--accent-soft);color:var(--accent);font-size:.78rem;font-weight:600;
  border-radius:99px;padding:.15rem .65rem}
.tag.ghost{background:#f0f2f6;color:var(--muted)}
.stem{font-size:1.02rem;margin-bottom:1.2rem}
.stem p{margin:0 0 .9rem}
.stem mark.hl,.opt-text mark.hl{background:#fff3b0;border-radius:3px;padding:0 1px;cursor:pointer}

/* Question figures (concept tables/graphics embedded in the stem area) */
.q-images{margin:0 0 1.2rem}
.q-images img{display:block;max-width:100%;height:auto;border:1px solid var(--border);
  border-radius:var(--radius);background:#fff;margin:0 auto .75rem}
.options{display:flex;flex-direction:column;gap:.55rem;margin-bottom:1.2rem}
.option{display:flex;align-items:flex-start;gap:.7rem;width:100%;text-align:left;
  border:1px solid var(--border);border-radius:var(--radius);padding:.75rem .9rem;
  background:#fff;cursor:pointer;font-size:.98rem;color:var(--ink)}
.option:hover{border-color:var(--accent);background:#fafbff}
.option .key{font-weight:700;min-width:1.6rem;height:1.6rem;border:1.5px solid var(--border);
  border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:.85rem}
.option.selected{border-color:var(--accent);background:var(--accent-soft)}
.option.selected .key{background:var(--accent);border-color:var(--accent);color:#fff}
.option.struck .opt-text{text-decoration:line-through;color:var(--muted)}
.option.correct{border-color:var(--good);background:var(--good-soft)}
.option.correct .key{background:var(--good);border-color:var(--good);color:#fff}
.option.wrong{border-color:var(--bad);background:var(--bad-soft)}
.option.wrong .key{background:var(--bad);border-color:var(--bad);color:#fff}
.option.readonly{cursor:default}
.option.readonly:hover{border-color:var(--border);background:#fff}
.opt-text{flex:1}
.strike-btn{border:0;background:none;color:var(--muted);cursor:pointer;font-size:.8rem;
  padding:.1rem .35rem;border-radius:6px;white-space:nowrap}
.strike-btn:hover{background:#f0f2f6;color:var(--ink)}
.strike-btn.on{color:var(--bad);font-weight:700}
.q-actions{display:flex;gap:.6rem;margin-bottom:1rem;flex-wrap:wrap}
.q-tools{display:flex;gap:.5rem;margin-top:.4rem}
.hint{background:var(--warn-soft);border:1px solid #ecd9ac;color:var(--warn);
  border-radius:8px;padding:.5rem .8rem;font-size:.87rem;margin-bottom:.8rem}
#notes-panel{margin-top:.6rem}

/* Feedback / explanation */
.feedback{border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem 1.2rem;
  margin:1rem 0;background:#fbfcfe}
.feedback .verdict{font-size:1.05rem;font-weight:700;margin-bottom:.5rem}
.feedback .verdict.good{color:var(--good)} .feedback .verdict.bad{color:var(--bad)}
.feedback h4{margin:1rem 0 .4rem;font-size:.95rem;color:var(--muted);text-transform:uppercase;
  letter-spacing:.04em;font-size:.78rem}
.opt-explain{margin:.45rem 0;font-size:.94rem;line-height:1.55}
.opt-explain strong{font-weight:700;margin-right:.3rem}
.feedback .reference{margin:.8rem 0 0;font-size:.85rem;color:var(--muted)}
.feedback .reference a{color:var(--accent)}

/* Navigator */
.navigator{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:1rem;align-self:start;position:sticky;top:130px;max-height:60vh;overflow:auto}
.nav-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}
.nav-head h4{margin:0}
.nav-legend{display:flex;gap:.8rem;font-size:.78rem;color:var(--muted);margin-bottom:.6rem;flex-wrap:wrap}
.dot{display:inline-block;width:.65rem;height:.65rem;border-radius:50%;margin-right:.25rem;vertical-align:baseline}
.dot.current{background:var(--accent)} .dot.answered{background:var(--good)} .dot.flagged{background:var(--warn)}
.nav-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:.35rem}
.nav-grid button{border:1px solid var(--border);background:#fff;border-radius:6px;
  padding:.35rem 0;font-size:.85rem;cursor:pointer;position:relative}
.nav-grid button.current{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft);font-weight:700}
.nav-grid button.answered{background:var(--good-soft);border-color:#bfe0cd}
.nav-grid button.flagged::after{content:"⚑";position:absolute;top:-2px;right:2px;font-size:.65rem;color:var(--warn)}

/* Results */
.score-hero{text-align:center;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:1.6rem;margin-bottom:1rem}
.score-num{font-size:3rem;font-weight:800;color:var(--accent)}
#btn-flag.flagged{background:var(--warn-soft);border-color:#e3c98a;color:var(--warn)}

/* Performance chart */
.chart-wrap{overflow-x:auto}
.chart-wrap svg{display:block;min-width:560px;width:100%;height:220px}

/* CME */
.pre-wrap{white-space:pre-wrap}
.objectives{border:1px solid var(--border);border-radius:8px;padding:.55rem .8rem;margin-bottom:.5rem;background:#fbfcfe}
.objectives summary{cursor:pointer;font-size:.95rem}
.objectives ol{margin:.5rem 0 .2rem 1.2rem;padding:0;font-size:.92rem}
.objectives li{margin-bottom:.25rem}
.banner{border-radius:var(--radius);padding:.9rem 1.1rem;margin:0 0 1rem;font-size:.97rem}
.banner.good{background:var(--good-soft);border:1px solid #bfe0cd;color:#0f4d2e}
.banner.bad{background:var(--bad-soft);border:1px solid #eec5c1;color:#7c1f19}
.cme-step{display:flex;gap:.6rem;align-items:flex-start;padding:.45rem 0;border-bottom:1px dashed var(--border);font-size:.95rem}
.cme-step:last-child{border-bottom:0}
.cme-check{font-weight:700;color:var(--muted);min-width:1.2rem}
.cme-step.done .cme-check{color:var(--good)}

/* Certificate */
.certificate{max-width:800px;margin:1.5rem auto;background:#fff;border:2px solid var(--ink);
  border-radius:6px;padding:3rem 3.5rem;text-align:center;box-shadow:var(--shadow)}
.cert-logo{font-size:.8rem;color:var(--muted);border:1px dashed var(--border);border-radius:6px;
  padding:.8rem;margin-bottom:1.6rem}
.cert-title{font-size:2rem;font-weight:800;letter-spacing:.04em;margin-bottom:.3rem}
.cert-provider{font-size:1rem;color:var(--muted);margin-bottom:1.8rem}
.cert-text{color:var(--muted);margin:.9rem 0 .4rem}
.cert-name{font-size:1.7rem;font-weight:700;border-bottom:1px solid var(--border);
  display:inline-block;padding:0 2rem .3rem;margin-bottom:.4rem}
.cert-activity{font-size:1.05rem;font-weight:600;margin-bottom:1.4rem}
.cert-meta{display:grid;grid-template-columns:1fr 1fr;gap:.6rem 2rem;text-align:left;
  max-width:560px;margin:0 auto 1.4rem;font-size:.95rem}
.cert-meta span{color:var(--muted);display:block;font-size:.8rem}
.cert-statement{font-size:.85rem;color:var(--muted);border-top:1px solid var(--border);
  padding-top:1rem;margin-bottom:.6rem}
.cert-pending{font-size:.82rem;color:var(--warn);background:var(--warn-soft);
  border-radius:8px;padding:.6rem .9rem;display:inline-block}
.cert-actions{margin-bottom:1rem}

/* Toast */
.toast{position:fixed;bottom:1.2rem;left:50%;transform:translateX(-50%);
  background:var(--ink);color:#fff;border-radius:8px;padding:.6rem 1.1rem;font-size:.92rem;
  box-shadow:0 4px 14px rgba(0,0,0,.25);z-index:100}

@media (max-width:760px){
  .topnav{display:none}
  #topbar{padding:.55rem .8rem}
  .radio-row{grid-template-columns:1fr}
  .q-topbar{top:53px}
  .q-layout.with-nav{grid-template-columns:1fr}
  .navigator{position:static;max-height:none}
  .q-main{padding:1rem}
  .certificate{padding:1.6rem 1.2rem}
  .cert-meta{grid-template-columns:1fr}
}

/* Print: only the certificate document */
@media print{
  #topbar, #toast, .no-print{display:none!important}
  #app{max-width:none;margin:0;padding:0}
  .view:not(#view-certificate){display:none!important}
  #view-certificate{display:block!important}
  .certificate{box-shadow:none;border-width:1.5px;margin:0 auto;max-width:100%}
  body{background:#fff}
}