:root{
  --bg:#E8ECEB; --surface:#FFFFFF; --surface2:#F3F6F5; --ink:#15202A; --muted:#5A6B68; --line:#CFD9D6;
  --brand:#0B6E5B; --brand-ink:#FFFFFF; --ok:#1E7F45; --ok-soft:#DDF3E5; --red:#B8352A; --red-soft:#FBE3DF; --amber:#B07C00; --amber-soft:#FFF3D1;
  --font:"Hind Siliguri","Segoe UI",Roboto,system-ui,sans-serif;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0F1715; --surface:#17221F; --surface2:#1D2A26; --ink:#E4ECEA; --muted:#9AAEA9; --line:#2D3D39;
    --brand:#2FA98A; --brand-ink:#06120F; --ok:#4CC27E; --ok-soft:#163A26; --red:#F07362; --red-soft:#3D1C18; --amber:#F0B429; --amber-soft:#3A2F12;
  }
}
:root[data-theme="dark"]{
  --bg:#0F1715; --surface:#17221F; --surface2:#1D2A26; --ink:#E4ECEA; --muted:#9AAEA9; --line:#2D3D39;
  --brand:#2FA98A; --brand-ink:#06120F; --ok:#4CC27E; --ok-soft:#163A26; --red:#F07362; --red-soft:#3D1C18; --amber:#F0B429; --amber-soft:#3A2F12;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.55}
body.in-exam{background:#2b3e4f}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid #E0A100;outline-offset:2px}
.hidden{display:none!important}

/* ---------- Trainer screens (setup / result) ---------- */
.wrap{max-width:980px;margin:0 auto;padding:20px 16px 40px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:22px;margin-bottom:16px}
.h2{font-size:24px;font-weight:700;margin:0 0 4px;line-height:1.3}
.sub{color:var(--muted);margin:0 0 18px}
.field{margin-bottom:16px}
.l{display:block;font-weight:600;margin-bottom:6px;font-size:15px}
input[type=text],select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface2);font-size:16px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:600px){.row2{grid-template-columns:1fr}}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--line);background:var(--surface2);border-radius:999px;padding:8px 14px;font-size:15px}
.chip[aria-pressed="true"]{background:var(--brand);border-color:var(--brand);color:var(--brand-ink);font-weight:600}
.btn{border:0;border-radius:8px;padding:12px 20px;font-weight:600;font-size:16px;background:var(--brand);color:var(--brand-ink)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.big{width:100%;padding:15px;font-size:18px}
.note{font-size:14px;color:var(--muted)}
.check{display:flex;gap:10px;align-items:center;margin-bottom:14px}
.check input{width:20px;height:20px;accent-color:var(--brand)}
.topline{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px}
.topline .iconbtn{background:transparent;border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:14px}

/* ---------- EXAM SCREEN (mirrors the real SVP layout) ---------- */
.exam-outer{min-height:100%;display:flex;justify-content:center;align-items:flex-start;padding:16px 10px}
@media (min-height:700px){.exam-outer{align-items:center;min-height:100vh}}
.exam-container{width:100%;max-width:1150px;background:#f5f3f0;color:#000;border:1px solid #000;padding:18px 22px;box-shadow:0 10px 25px rgba(0,0,0,.25);display:flex;flex-direction:column;gap:15px}
.top-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.timer-box{border:2px solid #000;background:#fff;padding:5px 14px;font-weight:700;font-size:1.05rem;box-shadow:2px 2px 0 #000;font-variant-numeric:tabular-nums;white-space:nowrap}
.timer-box b{font-family:"Segoe UI",Roboto,Arial,sans-serif;font-size:1.2rem;margin-left:6px}
.timer-box.low{background:#ffdddd;color:#b00000}
#endBtn{background:#008000;border:1px solid #000;padding:8px 24px;font-size:1.1rem;font-weight:700;color:#000;box-shadow:2px 2px 0 #000;white-space:nowrap}
#endBtn.last{background:#fff;color:#ff0000}
.main-section{display:flex;gap:20px;min-height:330px}
.serial-panel{display:flex;flex-direction:column;gap:7px;width:45px;flex-shrink:0}
.serial-box{width:38px;height:38px;background:#fff;border:2px solid #000;display:flex;align-items:center;justify-content:center;font-size:1.1rem;font-weight:700;color:#000;box-shadow:1px 1px 0 #000;padding:0;font-family:"Segoe UI",Roboto,Arial,sans-serif}
.serial-box.answered{background:#e0ffe0}
.serial-box.current{background:#d3d3d3;border-width:3px}
.question-area{flex:1;display:flex;flex-direction:column;gap:12px;min-width:0}
.question-text{font-size:1.2rem;font-weight:600;line-height:1.4;border-left:4px solid #006400;padding-left:12px}
.question-text small{display:block;font-weight:500;font-size:1rem;color:#333;font-family:"Segoe UI",Roboto,Arial,sans-serif}
.image-box{display:flex;justify-content:center;align-items:center;background:#fff;border:1px solid #000;padding:10px;align-self:flex-start;min-width:180px}
.image-box svg{width:150px;height:150px;display:block}
.options-list{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.option-item{display:flex;align-items:center;gap:10px}
.option-letter{font-weight:700;width:26px;flex-shrink:0;font-family:"Segoe UI",Roboto,Arial,sans-serif;font-size:1.05rem}
.option-box{background:#fff;border:2px solid #000;padding:8px 15px;font-size:1.05rem;color:#000;flex:1;box-shadow:2px 2px 0 #111;min-height:40px;display:flex;flex-direction:column;justify-content:center;text-align:left}
.option-box small{font-family:"Segoe UI",Roboto,Arial,sans-serif;color:#444;font-size:.92rem}
.option-box.selected{background:#ffffaa}
.option-box.right{background:#c8f5c8}
.option-box.wrong{background:#ffc9c9}
.practice-fb{border:2px dashed #006400;background:#fff;padding:8px 12px;font-size:.98rem}
.nav-buttons{display:flex;justify-content:flex-end;align-items:center;gap:25px}
.nav-btn{background:#008000;border:2px solid #000;padding:10px 28px;font-size:1.1rem;font-weight:700;color:#000;box-shadow:3px 3px 0 #111;min-width:120px}
.nav-btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 #000}
.nav-btn[aria-disabled="true"]{cursor:default}
.footer-info{padding-top:12px;border-top:1px solid #aaa;text-align:center;font-size:.82rem;color:#222}
.footer-info p{margin:2px 0}
.footer-info a{color:#0044cc;text-decoration:none;font-weight:500}
.footer-info a:hover{text-decoration:underline}

@media (max-width:640px){
  .exam-container{padding:12px}
  .main-section{flex-direction:column;gap:12px}
  .serial-panel{flex-direction:row;flex-wrap:wrap;width:auto}
  .serial-box{width:34px;height:34px;font-size:1rem}
  .nav-buttons{gap:12px}
  .nav-btn{min-width:0;flex:1;padding:10px 12px}
  .image-box{align-self:center}
}

.popup-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;justify-content:center;align-items:center;z-index:1000;padding:16px}
.popup-box{width:500px;max-width:100%;background:#f0ede8;color:#000;border:3px solid #000;padding:25px 20px;box-shadow:10px 10px 0 #111;text-align:center}
.popup-message{font-size:1.25rem;font-weight:600;margin-bottom:20px}
.popup-actions{display:flex;justify-content:center;gap:40px;flex-wrap:wrap}
.popup-btn{padding:12px 32px;font-size:1.15rem;font-weight:700;background:#2b4f5c;border:2px solid #000;color:#fff;box-shadow:3px 3px 0 #000}
.completion{position:fixed;inset:0;background:#1e2a32;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:2000;padding:16px;gap:24px}
.completion-card{background:#fef9e8;color:#000;border:4px solid #000;padding:36px 28px;text-align:center;max-width:700px;font-size:1.5rem;font-weight:700;line-height:1.5;box-shadow:12px 12px 0 #031016}
.trainer-link{background:transparent;border:1px solid #8aa0ad;color:#cfdbe2;border-radius:6px;padding:8px 16px;font-size:.95rem}

/* ---------- Result ---------- */
.res-top{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.score{font-size:44px;font-weight:700;line-height:1}
.score small{font-size:16px;color:var(--muted);font-weight:500;display:block;margin-top:6px}
.verdict{display:inline-block;font-weight:700;font-size:18px;padding:3px 12px;border-radius:8px;margin-bottom:6px}
.verdict.pass{background:var(--ok-soft);color:var(--ok)}
.verdict.fail{background:var(--red-soft);color:var(--red)}
.stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.stats div{background:var(--surface2);border-radius:8px;padding:6px 14px;font-size:14px;color:var(--muted)}
.stats b{display:block;font-size:20px;color:var(--ink)}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.ritem{border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:10px;background:var(--surface);display:flex;gap:12px;align-items:flex-start}
.ritem svg{width:64px;height:64px;flex:none;background:#fff;border-radius:6px;border:1px solid var(--line)}
.badge{flex:none;font-size:13px;font-weight:700;padding:2px 9px;border-radius:6px}
.badge.ok{background:var(--ok-soft);color:var(--ok)}
.badge.no{background:var(--red-soft);color:var(--red)}
.badge.sk{background:var(--amber-soft);color:var(--amber)}
.ritem p{margin:4px 0 0;font-size:15px}
.ans-ok{color:var(--ok);font-weight:600}
.ans-no{color:var(--red);font-weight:600}
@media print{.actions,.topline .iconbtn{display:none!important}body{background:#fff}}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* ---------- Guide ---------- */
.pageh{font-size:30px;margin:6px 0 4px;line-height:1.25}
.crumb{color:var(--brand);text-decoration:none;font-weight:600;font-size:15px}
.ghead{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.ghead-act{display:flex;gap:8px;flex-wrap:wrap}
a.btn{text-decoration:none;display:inline-block}
.tabs{display:flex;gap:4px;border-bottom:2px solid var(--line);margin-bottom:16px;overflow-x:auto}
.tab{padding:10px 16px;text-decoration:none;color:var(--muted);font-weight:600;border-bottom:3px solid transparent;margin-bottom:-2px;white-space:nowrap}
.tab.on{color:var(--brand);border-bottom-color:var(--brand)}
.qbar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.qbar a{color:var(--brand)}
.gq{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin-bottom:10px}
.gq-h{display:flex;gap:12px}
.gq-n{flex:none;width:30px;height:30px;border-radius:50%;background:var(--surface2);display:grid;place-items:center;font-weight:700;font-size:15px}
.gq-img{margin:10px 0 0 42px}
.gq-img svg{width:160px;height:150px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px}
.gq-o{list-style:none;padding:0;margin:10px 0 0 42px;display:grid;gap:6px}
.gq-o li{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px;padding:6px 10px;border-radius:8px;border:1px solid var(--line)}
.gq-o li .en-s{flex-basis:100%;margin-left:34px;font-size:13px}
.gq-o .lt{width:24px;font-weight:700}
.gq-o li.right{border-color:var(--ok);background:var(--ok-soft);font-weight:600}
.gq-e{margin:8px 0 0 42px;font-size:15px;color:var(--muted)}
.hideans .gq-o li.right{border-color:var(--line);background:transparent;font-weight:400}
.hideans .gq-e{display:none}
@media (max-width:560px){.gq-img,.gq-o,.gq-e{margin-left:0}}
.warnline{background:var(--amber-soft);border-radius:8px;padding:10px 14px;color:var(--ink)}
.task{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:12px}
.task h3{margin:0 0 8px;font-size:19px;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.tn{font-size:13px;background:var(--brand);color:var(--brand-ink);padding:2px 10px;border-radius:99px}
.task p{margin:6px 0}
.task ol,.task ul{margin:8px 0;padding-left:22px}
.task li{margin-bottom:5px}
.look{border-left:4px solid var(--brand);padding:6px 10px;background:var(--surface2);border-radius:0 6px 6px 0}
.task.tips{border-color:var(--brand)}
@media print{.side,.site-foot,.ghead-act,.tabs,.qbar{display:none!important}.task,.gq{break-inside:avoid}}

/* ---------- voice + rich practical ---------- */
.voicebar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:14px}
.vb-l{font-weight:700}
.vb-rate{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:6px}
.vb-rate select{width:auto;padding:6px 8px;font-size:14px}
.vb-stop{padding:7px 12px;font-size:14px}
.vb-st{flex-basis:100%;font-size:13px}
.vb-st .warn{color:var(--amber)}
.vb-st .okv{color:var(--ok)}
.saybtn{border:1px solid var(--brand);background:transparent;color:var(--brand);border-radius:999px;padding:5px 12px;font-size:14px;font-weight:600}
.saybtn:hover{background:var(--brand);color:var(--brand-ink)}
.saybtn.mini{padding:2px 8px;font-size:13px;vertical-align:middle}
.gq-say{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 0 42px}
@media (max-width:560px){.gq-say{margin-left:0}}
.qbar-r{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.topicbar{margin-bottom:12px}
.tag{display:inline-block;margin-top:4px;font-size:12px;background:var(--surface2);color:var(--muted);border-radius:99px;padding:1px 9px}
.hideans .gq-say [data-dyn]:nth-child(2){display:none}
.secnav{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 14px}
.secnav a{font-size:14px;text-decoration:none;color:var(--brand);border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:5px 10px}
.psec{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:16px;scroll-margin-top:80px}
.psec-h{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.psec-h h2{font-size:21px;margin:0;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.psec-i{color:var(--muted);margin:8px 0 14px}
.pgrid{display:grid;gap:12px}
.pgrid.cards,.pgrid.colors{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.pgrid.steps{grid-template-columns:1fr}
.pcard{display:flex;gap:14px;align-items:flex-start;background:var(--surface2);border:1px solid var(--line);border-radius:12px;padding:12px}
.pgrid.steps .pcard{border-left:5px solid var(--brand)}
.pimg{flex:none;width:200px;height:160px;background:#fff;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;padding:6px}
.pimg svg{width:100%;height:100%}
.swatch{width:84px;height:84px;border-radius:10px;border:2px solid #222}
.swatch.tape{width:90%;height:40px;border-radius:3px;display:grid;place-items:center;font:800 18px Arial,sans-serif;letter-spacing:3px;color:#C62828;box-shadow:0 3px 0 rgba(0,0,0,.15)}
.pbody{min-width:0;flex:1}
.pbody h4{margin:0 0 4px;font-size:17px;line-height:1.35}
.pbody p{margin:0 0 8px;font-size:15.5px}
.stepn{display:inline-block;background:var(--brand);color:var(--brand-ink);font-size:12px;border-radius:6px;padding:1px 8px;margin-right:8px;vertical-align:2px}
.pgrid.steps .pcard.bad{border-left-color:var(--red);background:var(--red-soft)}
.badn{background:var(--red)!important;color:#fff!important}
.how{margin:0 0 8px;padding-left:20px;font-size:15px}
.how li{margin-bottom:3px}
.pgrid.cards .pcard,.pgrid.colors .pcard{flex-direction:column}
.pgrid.cards .pimg,.pgrid.colors .pimg{width:100%;height:150px}
@media (max-width:560px){.pgrid.steps .pcard{flex-direction:column}.pgrid.steps .pimg{width:100%;height:150px}}
.question-text{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.exam-say{flex:none;background:#fff;border:2px solid #000;box-shadow:2px 2px 0 #000;padding:4px 10px;font-size:1.1rem;color:#000}
@media print{.voicebar,.saybtn,.secnav,.exam-say{display:none!important}.psec,.pcard{break-inside:avoid}}

.phbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin:-4px 0 14px}
.phbar .note{flex:1;min-width:220px}
#phmode[aria-pressed="true"]{background:var(--amber-soft);border-color:var(--amber)}
[data-ik]{position:relative}
.ph-act{position:absolute;left:6px;right:6px;bottom:6px;display:flex;gap:6px;justify-content:center;flex-wrap:wrap}
.ph-btn{border:0;border-radius:99px;padding:4px 10px;font-size:13px;font-weight:600;background:rgba(11,110,91,.92);color:#fff}
.ph-btn.ph-del{background:rgba(60,60,60,.85)}
.gq-img[data-ik]{display:inline-block}