:root{
  --navy:#12181C; --teal:#00C9A7; --teal-dark:#00a88a;
  --accent:#12181C; --accent2:#00C9A7; --bg:#F2F5F9; --card:#fff;
  --text:#1a1a1a; --muted:#6b7280; --ok:#15803d; --warn:#b45309; --err:#b91c1c;
  --radius:12px;
}
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent;}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  background:var(--bg);color:var(--text);font-size:15px;}
.hidden{display:none!important;}
.screen{display:none;min-height:100vh;min-height:100dvh;}
.screen.active{display:block;}
.pad{padding:14px 14px 90px;}
h1{font-size:26px;margin:6px 0;} h2{font-size:18px;margin:0;} h3{font-size:15px;margin:16px 0 8px;}
.muted{color:var(--muted);font-size:13px;margin:2px 0;}
.err{color:var(--err);font-size:13px;}

/* auth */
.auth-wrap{max-width:380px;margin:0 auto;padding:48px 18px;}
.auth-wrap .logo{font-size:52px;text-align:center;}
.auth-wrap h1,.auth-wrap .tagline{text-align:center;}
.tagline{color:var(--muted);margin:0 0 18px;}
.card{background:var(--card);border-radius:var(--radius);padding:16px;
  box-shadow:0 2px 10px rgba(0,0,0,.07);}
.tabs{display:flex;gap:6px;margin-bottom:12px;}
.tab{flex:1;padding:9px;border:1px solid #d7dee7;background:#eef2f7;border-radius:9px;
  font-size:14px;cursor:pointer;}
.tab.active{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600;}
input,select,textarea{width:100%;padding:11px 12px;margin:6px 0;border:1px solid #cfd8e3;
  border-radius:9px;font-size:15px;background:#fff;}
textarea{min-height:70px;resize:vertical;}

/* buttons */
.btn{border:1px solid #cfd8e3;background:#fff;border-radius:10px;padding:11px 14px;
  font-size:15px;cursor:pointer;color:var(--text);}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600;}
.btn.block{width:100%;margin:6px 0;}
.btn.big{padding:14px;font-size:16px;}
.btn.small{padding:7px 12px;font-size:13px;width:auto;}
.btn:disabled{opacity:.5;}

/* topbar */
.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:10px;
  background:var(--card);padding:12px 14px;padding-top:calc(12px + env(safe-area-inset-top));
  border-bottom:1px solid #e2e8f0;}
.topbar h2{flex:1;text-align:center;font-size:17px;}

/* lists */
.list{display:flex;flex-direction:column;gap:8px;margin:8px 0;}
.item{background:var(--card);border-radius:var(--radius);padding:13px 14px;
  box-shadow:0 1px 4px rgba(0,0,0,.06);display:flex;align-items:center;gap:10px;cursor:pointer;}
.item .grow{flex:1;}
.item .sub{font-size:12.5px;color:var(--muted);}
.item .badge{background:#e3ecf7;color:var(--accent);border-radius:20px;padding:3px 10px;
  font-size:12px;font-weight:600;white-space:nowrap;}

/* marking */
.mark-total{background:var(--card);border-radius:var(--radius);padding:14px;text-align:center;
  font-size:18px;margin:4px 0 10px;box-shadow:0 1px 4px rgba(0,0,0,.06);}
.qcard{background:var(--card);border-radius:var(--radius);padding:12px;margin:8px 0;
  box-shadow:0 1px 4px rgba(0,0,0,.06);}
.qcard .qtext{font-weight:600;margin-bottom:6px;}
.qcard .ocr{background:#f6f8fb;border:1px dashed #c6d2e0;border-radius:8px;padding:8px;
  font-size:13px;margin:6px 0;white-space:pre-wrap;}
.qcard .suggest{font-size:13px;color:var(--warn);}
.markrow{display:flex;align-items:center;gap:8px;margin-top:8px;}
.markrow input{width:70px;text-align:center;margin:0;}
.markrow .max{color:var(--muted);}
.flag{font-size:12px;padding:2px 8px;border-radius:12px;background:#fef3c7;color:var(--warn);}
.flag.ok{background:#dcfce7;color:var(--ok);}

/* scan */
.scan-img{width:100%;border-radius:var(--radius);margin:8px 0;}
#cam{width:100%;border-radius:var(--radius);background:#000;}
.row2{display:flex;gap:8px;}
.row2>*{flex:1;}

/* modal */
#modal-back{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:20;}
#modal{position:fixed;left:0;right:0;bottom:0;z-index:21;background:#fff;
  border-radius:18px 18px 0 0;padding:18px 16px calc(20px + env(safe-area-inset-bottom));
  max-height:85vh;max-height:85dvh;overflow-y:auto;}
#toast{position:fixed;left:50%;transform:translateX(-50%);bottom:26px;z-index:30;
  background:#111827;color:#fff;padding:11px 18px;border-radius:10px;font-size:14px;
  box-shadow:0 4px 14px rgba(0,0,0,.25);}

/* results */
table.res{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);
  overflow:hidden;font-size:13.5px;margin-top:10px;}
table.res th,table.res td{border:1px solid #e2e8f0;padding:7px 8px;text-align:left;}
table.res th{background:var(--accent);color:#fff;}
@media print{
  .topbar,.btn,#toast,#modal-back,#modal{display:none!important;}
  .screen{display:block!important;} .screen:not(.active){display:none!important;}
  body{background:#fff;}
}

/* ---------- paper generator ---------- */
.lbl{display:block;font-size:13px;font-weight:600;margin:12px 0 4px;color:#334155;}
.checklist label{display:flex;align-items:center;gap:8px;padding:8px 10px;background:#fff;
  border:1px solid #e2e8f0;border-radius:8px;margin-bottom:6px;font-size:14px;}
.checklist input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent);}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;}
.paper{background:#fff;color:#000;padding:28px 30px;margin:12px;border:1px solid #ddd;
  font-family:"Times New Roman",serif;font-size:14px;line-height:1.7;}
.paper[dir=rtl]{font-family:"Noto Nastaliq Urdu","Jameel Noori Nastaleeq",serif;line-height:2.3;}
.paper h2{text-align:center;margin:0 0 2px;font-size:20px;}
.paper .p-sub{text-align:center;margin-bottom:10px;font-size:14px;}
.paper .p-meta{display:flex;justify-content:space-between;border-top:2px solid #000;
  border-bottom:2px solid #000;padding:6px 0;margin-bottom:12px;font-weight:bold;}
.paper .p-sec{font-weight:bold;text-decoration:underline;margin:14px 0 6px;font-size:15px;}
.paper table.p-mcq{width:100%;border-collapse:collapse;}
.paper table.p-mcq td{border:1px solid #000;padding:6px 8px;vertical-align:top;}
.paper table.p-mcq td.qn{width:34px;text-align:center;font-weight:bold;}
.paper ol.p-list{margin:6px 0;padding-left:22px;}
.paper ol.p-list li{margin-bottom:8px;}
.paper[dir=rtl] ol.p-list{padding-left:0;padding-right:22px;}
.paper .p-end{text-align:center;margin-top:18px;font-weight:bold;}
@media print{
  #screen-paper{display:block!important;}
  #screen-paper .no-print{display:none!important;}
  .paper{margin:0;border:none;padding:0;}
  @page{size:A4;margin:15mm;}
}

/* ---------- professional dashboard ---------- */
.topbar.dash{background:linear-gradient(135deg,#1F497D,#2E74B5);color:#fff;
  border-bottom:none;padding:14px 16px;}
.topbar.dash .muted{color:rgba(255,255,255,.75);}
.brand{display:flex;align-items:center;gap:10px;}
.brand-logo{font-size:28px;background:rgba(255,255,255,.15);width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;border-radius:12px;}
.brand b{font-size:17px;} .brand p{margin:0;}
.icon-btn{background:rgba(255,255,255,.15);border:none;color:#fff;font-size:18px;
  width:40px;height:40px;border-radius:12px;cursor:pointer;}
.greet{font-size:20px;margin:4px 0 12px;}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px;}
.stat{background:var(--card);border-radius:var(--radius);padding:12px 6px;text-align:center;
  box-shadow:0 2px 10px rgba(0,0,0,.07);}
.stat b{display:block;font-size:22px;color:var(--accent);}
.stat span{font-size:11.5px;color:var(--muted);}
.actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:6px;}
.action-card{background:var(--card);border:1px solid #e2e8f0;border-radius:14px;
  padding:16px 10px;cursor:pointer;text-align:center;display:flex;flex-direction:column;
  align-items:center;gap:4px;box-shadow:0 2px 10px rgba(0,0,0,.06);}
.action-card:active{transform:scale(.97);}
.ac-icon{font-size:30px;}
.action-card b{font-size:15px;} .action-card .muted{font-size:12px;}
.sec-head{display:flex;align-items:center;justify-content:space-between;margin:18px 0 8px;}
.sec-head h3{margin:0;}
.list .item{background:var(--card);border-radius:var(--radius);padding:13px 14px;
  margin-bottom:8px;display:flex;align-items:center;gap:10px;cursor:pointer;
  box-shadow:0 1px 6px rgba(0,0,0,.05);}
.list .item .grow{flex:1;}
.list .item .sub{font-size:12.5px;color:var(--muted);}
.badge{background:#e8f0fa;color:var(--accent);font-size:12px;font-weight:600;
  padding:3px 10px;border-radius:20px;white-space:nowrap;}

/* ---------- mobile polish ---------- */
.qcard{background:var(--card);border-radius:var(--radius);padding:13px 14px;
  margin-bottom:10px;box-shadow:0 1px 6px rgba(0,0,0,.05);}
.qcard .qtext{font-size:14.5px;margin-bottom:6px;}
.qcard .sub{font-size:12.5px;color:var(--muted);margin-bottom:6px;}
.markrow{display:flex;align-items:center;gap:8px;margin-top:8px;}
.markrow input[type=number]{width:80px;margin:0;text-align:center;
  font-size:17px;font-weight:600;}
.mark-total{background:var(--card);border-radius:var(--radius);padding:13px;
  text-align:center;font-size:17px;margin-bottom:12px;box-shadow:0 1px 6px rgba(0,0,0,.05);}
.scan-img{width:100%;border-radius:var(--radius);margin:10px 0;}
#cam{width:100%;border-radius:var(--radius);margin:10px 0;background:#000;}
.ocr{background:#f8fafc;border-left:3px solid var(--accent2);padding:8px 10px;
  font-size:13px;margin:8px 0;border-radius:0 8px 8px 0;white-space:pre-wrap;}
.suggest{background:#f0fdf4;border-left:3px solid var(--ok);padding:8px 10px;
  font-size:13px;margin:8px 0;border-radius:0 8px 8px 0;}
.flag{font-size:11px;background:#fef3c7;padding:2px 8px;border-radius:10px;}
.flag.ok{background:#dcfce7;}
@media (max-width:380px){
  .stats{grid-template-columns:repeat(2,1fr);}
  .actions{grid-template-columns:1fr;}
}

/* ---------- generator form ---------- */
.radio-row{display:flex;gap:14px;margin:6px 0;}
.radio-row label{display:flex;align-items:center;gap:7px;font-size:14.5px;
  background:#fff;border:1px solid #e2e8f0;border-radius:9px;padding:9px 14px;cursor:pointer;}
.radio-row input[type=radio]{width:17px;height:17px;accent-color:var(--accent);}

/* ---------- professional paper ---------- */
.paper .p-head{text-align:center;border-bottom:3px double #000;padding-bottom:10px;margin-bottom:0;}
.paper .p-head h2{font-size:22px;margin:0 0 4px;}
.paper .p-title{font-size:17px;font-weight:bold;margin:4px 0;}
.paper .p-sub{font-size:14px;margin:2px 0;}
.paper .p-cov{color:#333;font-size:13px;}
.paper .p-meta{margin-top:10px;}
.paper .p-namerow{display:flex;justify-content:space-between;font-size:13.5px;
  padding:8px 0;border-bottom:1px solid #000;margin-bottom:6px;}
.paper .p-note{font-size:13px;font-style:italic;margin:6px 0 4px;}
.paper .p-secmarks{font-weight:normal;font-size:13px;}

/* ---------- bottom navigation (mobile) ---------- */
#bottomnav{position:fixed;left:0;right:0;bottom:0;z-index:15;
  display:flex;background:#fff;border-top:1px solid #e2e8f0;
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -2px 12px rgba(0,0,0,.08);}
#bottomnav button{flex:1;border:none;background:none;padding:9px 4px 8px;
  display:flex;flex-direction:column;align-items:center;gap:3px;
  color:var(--muted);font-size:11px;cursor:pointer;}
#bottomnav button .bn-icon{font-size:22px;line-height:1;}
#bottomnav button.active{color:var(--teal-dark);font-weight:700;}
#bottomnav button.active .bn-icon{transform:scale(1.12);}
#sidebar{display:none;}
.pad{padding:14px 14px 96px;}

/* ---------- sidebar (desktop, Vantro-style) ---------- */
@media (min-width:900px){
  #bottomnav{display:none!important;}
  #sidebar{display:flex;position:fixed;left:0;top:0;bottom:0;z-index:15;
    width:230px;flex-direction:column;background:var(--navy);color:#cbd5e1;
    padding:18px 12px;}
  #sidebar.hidden{display:none!important;}
  .sb-brand{display:flex;align-items:center;gap:10px;padding:4px 10px 18px;
    color:#fff;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:12px;}
  .sb-brand .brand-logo{background:rgba(0,201,167,.18);font-size:24px;
    width:40px;height:40px;}
  .sb-brand b{font-size:16px;}
  #sidebar button{display:flex;align-items:center;gap:12px;width:100%;
    border:none;background:none;color:#cbd5e1;font-size:14.5px;text-align:left;
    padding:12px 14px;border-radius:10px;cursor:pointer;margin-bottom:4px;}
  #sidebar button .bn-icon{font-size:20px;width:26px;text-align:center;}
  #sidebar button:hover{background:rgba(255,255,255,.07);color:#fff;}
  #sidebar button.active{background:rgba(0,201,167,.16);color:#fff;font-weight:600;
    border-left:3px solid var(--teal);}
  .sb-foot{margin-top:auto;padding-top:12px;border-top:1px solid rgba(255,255,255,.1);}
  #app{margin-left:230px;}
  .pad{padding:20px 28px 40px;max-width:1000px;}
  .auth-wrap{margin:0 auto;}
  #modal{left:230px;}
}
.auth-wrap .pad{padding-bottom:14px;}
@media print{ #bottomnav,#sidebar{display:none!important;} #app{margin-left:0;} }

/* Vantro-style dark headers */
.topbar.dash{background:linear-gradient(135deg,#12181C,#1e2a30);color:#fff;
  border-bottom:none;padding:14px 16px;}
.topbar.dash .brand-logo{background:rgba(0,201,167,.18);}
.topbar.dash .icon-btn{background:rgba(255,255,255,.12);}
.stat b{color:var(--navy);}
.action-card{border-top:3px solid var(--teal);}
.btn.primary{background:var(--teal-dark);border-color:var(--teal-dark);}
.tab.active{background:var(--navy);border-color:var(--navy);}
table.res th{background:var(--navy);}
.item .badge{background:#e6faf5;color:var(--teal-dark);}
.badge{background:#e6faf5;color:var(--teal-dark);}
.checklist input[type=checkbox]{accent-color:var(--teal-dark);}
.radio-row input[type=radio]{accent-color:var(--teal-dark);}