:root{
    --steel:#232A31; --ink:#1A1F24; --muted:#6B7580;
    --line:#DCDFDD; --surface:#EDEFEC; --card:#FFFFFF;
    --hazard:#F4B400; --blue:#7FB2DD;
    --c:#1F8A4C; --c-d:#186E3C; --nc:#C0392B; --nc-d:#9E2C20;
    --na:#5A6672; --nv:#D98A0B; --nv-d:#B4720A;
    --ok-bg:#EAF5EE; --bad-bg:#FBECEA; --warn-bg:#FCF3E2; --info-bg:#EAF1F8;
    --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
    --mono:ui-monospace,"SF Mono",Menlo,Consolas,"Roboto Mono",monospace;
  }
  *{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
  html,body{margin:0;padding:0}
  body{font-family:var(--sans);color:var(--ink);
    background:repeating-linear-gradient(90deg,rgba(0,0,0,.02) 0 1px,transparent 1px 46px),#C9CDC7;
    min-height:100vh;display:flex;justify-content:center;align-items:flex-start;padding:24px 12px}
  .phone{width:100%;max-width:412px;background:var(--surface);border-radius:26px;overflow:hidden;position:relative;
    box-shadow:0 18px 50px rgba(20,25,30,.35),0 2px 0 rgba(255,255,255,.4) inset;min-height:780px;display:flex;flex-direction:column}
  .hazard{height:7px;background:repeating-linear-gradient(45deg,var(--hazard) 0 13px,#1A1F24 13px 26px)}
  .top{background:var(--steel);color:#EDEFEC;padding:14px 18px 13px;position:relative}
  .brand{display:flex;align-items:center;gap:10px}
  .logo{width:34px;height:34px;border-radius:7px;flex:none;object-fit:cover;background:#fff;
    border:1px solid rgba(255,255,255,.28);box-shadow:0 1px 3px rgba(0,0,0,.3)}
  .brand h1{font-size:14px;letter-spacing:.14em;margin:0;font-weight:800;text-transform:uppercase;color:var(--blue)}
  .brand .sub{font-size:10px;letter-spacing:.18em;color:#9AA4AD;text-transform:uppercase;margin-top:1px}
  .norm{position:absolute;top:14px;right:18px;font-family:var(--mono);font-size:9.5px;color:#B9C1C8;
    border:1px solid #3C454D;border-radius:5px;padding:3px 6px;letter-spacing:.03em}
  /* 3-stage stepper */
  .stages{display:flex;background:#1B2127;padding:8px 10px;gap:6px}
  .stage{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;cursor:default;opacity:.5}
  .stage.clk{cursor:pointer}
  .stage .dot{width:20px;height:20px;border-radius:50%;background:#3A434B;color:#B9C1C8;font-size:10px;font-weight:800;
    display:flex;align-items:center;justify-content:center}
  .stage .lbl{font-size:8.5px;letter-spacing:.06em;text-transform:uppercase;color:#9AA4AD;font-weight:700;text-align:center;line-height:1.15}
  .stage.active{opacity:1}
  .stage.active .dot{background:var(--hazard);color:#1A1F24}
  .stage.active .lbl{color:#EDEFEC}
  .stage.done{opacity:1}
  .stage.done .dot{background:var(--c);color:#fff}
  .stage.done .lbl{color:#C9D3CC}
  .track{height:4px;background:#3A434B}
  .track>i{display:block;height:100%;background:var(--hazard);width:0;transition:width .3s ease}
  @media (prefers-reduced-motion:reduce){.track>i,.track{transition:none}}
  .body{flex:1;overflow-y:auto;padding:18px 18px 26px}
  .demo{display:flex;gap:7px;flex-wrap:wrap;margin:-4px 0 14px;padding:8px;border:1px dashed #B3B8B2;border-radius:9px;
    background:repeating-linear-gradient(-45deg,#E4E7E2 0 8px,#EAEDE8 8px 16px)}
  .demo span{font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);align-self:center;font-weight:700;margin-right:2px}
  .demo button{font:inherit;font-size:11px;font-weight:600;border:1px solid #B3B8B2;background:#fff;color:var(--ink);border-radius:6px;padding:5px 9px;cursor:pointer}
  .demo button:hover{border-color:var(--steel)}
  .lead{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:700;margin:2px 0 6px}
  .mselHint{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);font-weight:700;margin:-2px 0 4px}
  .mselWrap{position:relative;margin:0 0 4px}
  .msel{appearance:none;-webkit-appearance:none;width:100%;font:inherit;font-size:23px;font-weight:800;letter-spacing:-.01em;
    color:var(--ink);background:transparent;border:none;border-bottom:2px solid var(--steel);padding:2px 28px 7px 0;cursor:pointer;line-height:1.15}
  .msel:focus{outline:none;border-bottom-color:var(--hazard)}
  .mselWrap::after{content:"▾";position:absolute;right:3px;top:3px;font-size:17px;color:var(--steel);pointer-events:none}
  .mount{font-size:12.5px;color:var(--muted);margin:6px 0 16px}
  .grouphd{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--steel);font-weight:800;margin:16px 0 8px;padding-top:12px;border-top:1px solid var(--line)}
  label.f{display:block;margin:0 0 12px}
  label.f>span{display:block;font-size:11px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:5px}
  input.t,select.t{width:100%;font:inherit;font-size:15px;padding:11px 12px;border:1px solid var(--line);border-radius:9px;background:var(--card);color:var(--ink)}
  input.t:focus,select.t:focus{outline:2px solid var(--steel);outline-offset:1px;border-color:var(--steel)}
  .disp{font-size:14px;font-weight:600;padding:10px 12px;background:#E7EAE6;border:1px solid var(--line);border-radius:9px;font-family:var(--mono)}
  .grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
  .gate{border:1px solid var(--line);border-radius:11px;background:var(--card);padding:14px;margin:6px 0 12px}
  .gate p{margin:0 0 10px;font-size:13.5px;font-weight:600}
  .gate .opts{display:flex;gap:8px}
  .seg{flex:1;text-align:center;font:inherit;font-size:14px;font-weight:700;padding:10px;border-radius:8px;border:1.5px solid var(--line);background:#fff;cursor:pointer;color:var(--muted)}
  .seg.on{border-color:var(--steel);background:var(--steel);color:#fff}
  .note{font-size:11.5px;color:var(--muted);line-height:1.4;margin:8px 0 0}
  .eyebrow{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;gap:8px}
  .cat{font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--steel);font-weight:800;max-width:70%}
  .ncchip{font-family:var(--mono);font-size:11px;font-weight:700;color:var(--nc);background:var(--bad-bg);border:1px solid #EBC9C4;border-radius:20px;padding:3px 9px;white-space:nowrap}
  .ncchip.zero{color:var(--c-d);background:var(--ok-bg);border-color:#CDE6D6}
  .note-cb{background:var(--info-bg);border:1px solid #CBDCEC;border-left:4px solid var(--blue);border-radius:8px;padding:9px 11px;margin:0 0 12px;font-size:12.5px;line-height:1.45;color:#274763}
  .note-cb b{display:block;font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:#3E6488;margin-bottom:2px}
  .itemcard{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 18px;box-shadow:0 1px 0 rgba(0,0,0,.02)}
  .itemcard .q{font-size:19px;line-height:1.32;font-weight:700;margin:0 0 3px;letter-spacing:-.005em}
  .itemcard .cond{display:inline-block;font-size:10px;letter-spacing:.1em;text-transform:uppercase;font-weight:700;color:var(--nv-d);background:var(--warn-bg);border-radius:5px;padding:2px 7px;margin-bottom:6px}
  .count{font-family:var(--mono);font-size:11px;color:var(--muted);margin-top:2px}
  .fields{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0 2px}
  .fields label{display:block}
  .fields span{display:block;font-size:10px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:4px}
  .fields input{width:100%;font:inherit;font-family:var(--mono);font-size:14px;padding:8px 9px;border:1px solid var(--line);border-radius:8px}
  .fields input:focus{outline:2px solid var(--steel);outline-offset:1px}
  .states{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin-top:16px}
  .st{position:relative;font:inherit;cursor:pointer;border-radius:12px;padding:18px 10px 15px;border:2px solid var(--line);background:#fff;text-align:center;transition:transform .06s ease}
  .st:active{transform:scale(.97)}
  .st b{display:block;font-size:25px;font-weight:800;line-height:1}
  .st small{display:block;font-size:10px;letter-spacing:.1em;text-transform:uppercase;font-weight:700;margin-top:4px;color:var(--muted)}
  .st:focus-visible{outline:3px solid var(--steel);outline-offset:2px}
  .st[data-k="C"] b{color:var(--c)} .st[data-k="NC"] b{color:var(--nc)} .st[data-k="NA"] b{color:var(--na)} .st[data-k="NV"] b{color:var(--nv-d)}
  .st.on{color:#fff;border-color:transparent} .st.on small{color:rgba(255,255,255,.85)} .st.on b{color:#fff}
  .st.on[data-k="C"]{background:var(--c)} .st.on[data-k="NC"]{background:var(--nc)} .st.on[data-k="NA"]{background:var(--na)} .st.on[data-k="NV"]{background:var(--nv-d)}
  .st.on::after{content:"\2713";position:absolute;top:6px;right:8px;font-size:12px;font-weight:800}
  .skip{margin-top:12px;width:100%;font:inherit;font-size:13px;font-weight:600;border:1.5px dashed var(--na);background:#fff;color:var(--na);border-radius:9px;padding:10px;cursor:pointer}
  .obsToggle{margin-top:12px;background:none;border:none;font:inherit;font-size:13px;font-weight:600;color:var(--steel);cursor:pointer;padding:4px 0;text-decoration:underline;text-underline-offset:3px}
  .obs{margin-top:8px;display:none}.obs.show{display:block}
  .obs textarea{width:100%;font:inherit;font-size:14px;padding:10px;border:1px solid var(--line);border-radius:9px;min-height:60px;resize:vertical}
  .obs textarea:focus{outline:2px solid var(--steel);outline-offset:1px}
  .foot{display:flex;gap:11px;margin-top:16px}
  .btn{font:inherit;font-size:15.5px;font-weight:700;border-radius:12px;padding:16px 14px;cursor:pointer;border:1.5px solid var(--steel)}
  .btn.ghost{background:#fff;color:var(--steel);flex:0 0 40%}
  .btn.solid{background:var(--steel);color:#fff;flex:1;border-color:var(--steel)}
  .btn.solid:disabled{opacity:.4;cursor:default}
  .btn.big{background:var(--hazard);border-color:#1A1F24;color:#1A1F24;flex:1;font-size:16.5px;padding:17px 14px}
  .btn.big:disabled{opacity:.4;cursor:default}
  /* result / informe */
  .verdict{border-radius:16px;padding:20px 18px;text-align:center;margin-bottom:16px;color:#fff}
  .verdict.ok{background:linear-gradient(150deg,var(--c),var(--c-d))}
  .verdict.bad{background:linear-gradient(150deg,var(--nc),var(--nc-d))}
  .verdict .k{font-size:12px;letter-spacing:.2em;text-transform:uppercase;font-weight:700;opacity:.9}
  .verdict .v{font-size:28px;font-weight:800;margin:4px 0 2px}
  .verdict .d{font-size:13px;opacity:.92}
  .tally{display:flex;gap:7px;margin-bottom:16px}
  .tally div{flex:1;background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 4px;text-align:center}
  .tally b{display:block;font-family:var(--mono);font-size:18px;font-weight:800}
  .tally small{font-size:9px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:700}
  .secTitle{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--steel);font-weight:800;margin:16px 0 8px}
  .kv{display:flex;justify-content:space-between;gap:10px;font-size:12.5px;padding:5px 0;border-bottom:1px dotted var(--line)}
  .kv .lb{color:var(--muted);font-weight:600;flex:none}
  .kv .vl{font-weight:600;text-align:right;font-family:var(--mono)}
  .repcat{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);font-weight:800;margin:14px 0 5px}
  .repitem{display:flex;align-items:flex-start;gap:8px;padding:6px 0;border-bottom:1px solid #EEF0ED}
  .repitem .rl{flex:1;font-size:12.5px;line-height:1.3}
  .repitem .ro{display:block;font-size:11px;color:var(--muted);font-style:italic;margin-top:1px}
  .repitem .rf{display:block;font-size:10.5px;color:var(--muted);font-family:var(--mono);margin-top:1px}
  .pill{flex:none;font-family:var(--mono);font-size:10px;font-weight:800;color:#fff;border-radius:5px;padding:2px 6px;min-width:34px;text-align:center}
  .pill.C{background:var(--c)} .pill.NC{background:var(--nc)} .pill.NA{background:var(--na)} .pill.NV{background:var(--nv-d)} .pill.DAT{background:#95a0aa}
  .actions{display:flex;gap:8px;margin:16px 0 4px}
  .actions button{flex:1;font:inherit;font-size:12px;font-weight:700;border:1.5px solid var(--steel);background:#fff;color:var(--steel);border-radius:10px;padding:11px 6px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:3px}
  .actions button b{font-size:15px}
  .demoflag{font-size:10.5px;color:var(--muted);text-align:center;margin:6px 0 2px}
  .locked{background:#EDEFEC;border:1.5px dashed #B3B8B2;border-radius:12px;padding:16px;text-align:center;margin:16px 0 4px}
  .locked .lk{font-size:22px}.locked p{margin:6px 0 0;font-size:12.5px;color:var(--muted);line-height:1.4}
  .fails{margin-bottom:8px}
  .fails h3{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--nc-d);margin:14px 0 8px}
  .failItem{background:var(--bad-bg);border:1px solid #EBC9C4;border-left:4px solid var(--nc);border-radius:8px;padding:9px 12px;margin-bottom:8px}
  .failItem .fc{font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--nc-d);font-weight:700}
  .failItem .fl{font-size:13.5px;font-weight:600;margin:1px 0}
  .failItem .fo{font-size:12px;color:var(--muted);font-style:italic}
  /* certificate */
  .cert{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:6px}
  .cert .chz{height:6px;background:repeating-linear-gradient(45deg,var(--hazard) 0 11px,#1A1F24 11px 22px)}
  .cert .cin{padding:18px 18px 20px}
  .cert .ch{text-align:center;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:12px}
  .cert .ch .t{font-size:15px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
  .cert .ch .u{font-family:var(--mono);font-size:10.5px;color:var(--muted);margin-top:3px}
  .cert .seal{display:inline-block;margin-top:9px;border:2px solid var(--c);color:var(--c-d);border-radius:8px;font-size:15px;font-weight:800;letter-spacing:.14em;padding:5px 16px;transform:rotate(-3deg)}
  .crow{display:flex;justify-content:space-between;gap:10px;font-size:11.5px;padding:4px 0;border-bottom:1px dotted var(--line)}
  .crow .lb{color:var(--muted);font-weight:600;flex:none;max-width:52%}
  .crow .vl{font-weight:600;text-align:right;font-family:var(--mono)}
  .certify{background:var(--ok-bg);border:1px solid #CDE6D6;border-radius:9px;padding:11px;margin:12px 0;font-size:12.5px;line-height:1.45;color:#1C4A31}
  .certify b{color:var(--c-d)}
  .legal{font-size:9.5px;color:#8A9199;line-height:1.5;margin:10px 0 0}
  .cnext{background:var(--warn-bg);border:1px solid #EAD7A8;border-radius:8px;padding:9px 11px;margin-top:11px;font-size:12px;font-weight:700;color:var(--nv-d);display:flex;justify-content:space-between}
  .cnext .vl{font-family:var(--mono)}
  .sign{display:flex;gap:12px;margin-top:14px}
  .sign div{flex:1;text-align:center}
  .sign .ln{border-top:1px solid var(--ink);margin-bottom:4px;padding-top:6px;font-size:11px;font-weight:700}
  .sign small{font-size:9.5px;color:var(--muted)}
  /* home screen */

  .homeDate{color:var(--muted);font-size:12.5px;font-weight:600;letter-spacing:.02em;margin:2px 0 14px}
  .statsRow{display:flex;gap:10px;margin-bottom:18px}
  .statBox{flex:1;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 10px;text-align:center}
  .statBox b{display:block;font-size:22px;font-weight:800;font-family:var(--mono);color:var(--steel)}
  .statBox small{font-size:9.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:700}
  .recentItem{display:flex;align-items:center;gap:11px;padding:12px 2px;border-bottom:1px solid #EEF0ED;cursor:pointer}
  .recentItem:active{background:#E9ECE8}
  .riIcon{flex:none;width:38px;height:38px;border-radius:10px;background:#E7EAE6;display:flex;align-items:center;justify-content:center;font-size:18px}
  .riBody{flex:1;min-width:0}
  .riTitle{font-size:13.5px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .riSub{font-size:11.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .riBadge{flex:none;font-size:9.5px;font-weight:800;letter-spacing:.04em;border-radius:6px;padding:4px 8px}
  .riBadge.ok{background:var(--ok-bg);color:var(--c-d)}
  .riBadge.bad{background:var(--bad-bg);color:var(--nc)}
  .homeLink{display:block;text-align:center;margin-top:6px;color:var(--steel);font-size:12.5px;font-weight:600;text-decoration:underline;text-underline-offset:3px;cursor:pointer}
  .backHome{display:inline-block;color:var(--steel);font-size:12.5px;font-weight:600;cursor:pointer;margin-bottom:10px}
  #toast{position:absolute;left:16px;right:16px;bottom:78px;background:#1A1F24;color:#fff;font-size:12.5px;text-align:center;
    padding:11px 14px;border-radius:10px;opacity:0;transform:translateY(8px);transition:.2s;pointer-events:none;z-index:5}
  #toast.show{opacity:1;transform:none}

/* =================== PWA additions =================== */
.riBadge.draft{background:var(--warn-bg);color:var(--nv-d)}
.riDel{flex:none;border:0;background:none;font-size:16px;padding:8px 4px 8px 8px;cursor:pointer;opacity:.55}
.riDel:active{opacity:1}
.emptyHist{font-size:12.5px;color:var(--muted);text-align:center;padding:18px 6px}
.installBtn{width:100%;margin-top:10px}
#updBanner{position:sticky;bottom:0;display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:var(--steel);color:#EDEFEC;padding:12px 16px;font-size:13px;z-index:20}
#updBanner button{font:inherit;font-weight:700;font-size:13px;border:0;border-radius:8px;background:var(--hazard);color:#1A1F24;padding:9px 14px;cursor:pointer}
/* phones: full-bleed, no mock frame */
@media (max-width:520px){
  body{padding:0;display:block;background:var(--surface)}
  .phone{max-width:none;border-radius:0;box-shadow:none;min-height:100vh;min-height:100dvh}
}

#app>.btn.big{width:100%}
#shareSheet{position:absolute;inset:0;z-index:40;display:flex;flex-direction:column;justify-content:flex-end}
#shareSheet .ssBack{position:absolute;inset:0;background:rgba(20,25,30,.55)}
#shareSheet .ssBox{position:relative;background:var(--surface);border-radius:18px 18px 0 0;padding:16px 16px calc(16px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:10px}
#shareSheet .ssTitle{font-size:12px;letter-spacing:.1em;text-transform:uppercase;font-weight:800;color:var(--muted);text-align:center;margin-bottom:2px}
#shareSheet button{font:inherit;font-size:16px;font-weight:700;border:1.5px solid var(--steel);background:#fff;color:var(--steel);border-radius:12px;padding:15px;cursor:pointer}
#shareSheet button:active{background:#E9ECE8}
#shareSheet .ssCancel{border-color:transparent;background:none;color:var(--muted)}
#shareSheet .ssNote{margin:2px 4px 0;font-size:11.5px;line-height:1.35;color:var(--muted);text-align:center}
.updLink{text-decoration:underline;text-underline-offset:2px;cursor:pointer;color:var(--steel);font-weight:600}