@font-face{font-family:"Poppins DN";src:url("/assets/fonts/poppins-regular.woff") format("woff");font-weight:400;font-display:swap}
@font-face{font-family:"Poppins DN";src:url("/assets/fonts/poppins-medium.woff") format("woff");font-weight:500 600;font-display:swap}
@font-face{font-family:"Poppins DN";src:url("/assets/fonts/poppins-bold.woff") format("woff");font-weight:700 900;font-display:swap}

:root{
  /* Layout: one phone-width app column, bottom tab bar, cards for tools */
  --bg:#F2F3F7; --surface:#FFFFFF; --ink:#0B1A3A; --muted:#5B6870; --line:#DDE1D9;
  --accent:#B07D06; --accent-soft:#FBF0D2; --teal:#14306E; --teal-soft:#DFE6F5;
  --good:#1D7A3A; --warn:#A35A00;
  --display:"Poppins DN", system-ui, sans-serif;
  --body:"Poppins DN", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#070F24; --surface:#0F1C3A; --ink:#E8EDEF; --muted:#9AA7AE; --line:#2A353D;
    --accent:#F5C04A; --accent-soft:#3A2F12; --teal:#8FB0F0; --teal-soft:#16244A;
    --good:#5CCB7E; --warn:#F0B35A; color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --bg:#070F24; --surface:#0F1C3A; --ink:#E8EDEF; --muted:#9AA7AE; --line:#2A353D;
  --accent:#F5C04A; --accent-soft:#3A2F12; --teal:#8FB0F0; --teal-soft:#16244A;
  --good:#5CCB7E; --warn:#F0B35A; color-scheme: dark;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.45}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.app{max-width:560px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;padding:0 16px 96px}
header.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 0 12px}
.brand{display:flex;align-items:center;gap:10px}
.logo{width:46px;height:46px;border-radius:12px;display:block;flex:none}
.brand h1{font-family:var(--display);font-size:20px;margin:0;letter-spacing:-.01em}
.brand small{display:block;color:var(--muted);font-size:13px;margin-top:-2px}
.pill-btn{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:6px 14px;font-weight:600;font-size:14px}
h2{font-family:var(--display);font-size:20px;margin:0;text-wrap:balance}
h3{font-family:var(--display);font-size:16px;margin:22px 0 10px;text-wrap:balance;overflow-wrap:anywhere;min-width:0}
.muted{color:var(--muted)}
.search{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:var(--surface);font-size:16px}
.chips{display:flex;gap:8px;overflow-x:auto;padding:12px 0 4px;scrollbar-width:none}
.chip{flex:none;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:6px 12px;font-size:14px;white-space:nowrap}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
@media (max-width:400px){.grid{grid-template-columns:repeat(2,1fr)}}
.tile{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:12px;text-align:left;display:flex;flex-direction:column;gap:8px;min-height:104px}
.mono{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;font-family:var(--display);font-weight:700;font-size:14px;background:var(--accent-soft);color:var(--accent)}
.tile:nth-child(even) .mono{background:var(--teal-soft);color:var(--teal)}
.tile b{font-weight:600;font-size:14.5px;line-height:1.25}
.tile span.count{font-size:12.5px;color:var(--muted)}
.list{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:14px;background:var(--surface);overflow:hidden}
.row{display:flex;align-items:center;gap:12px;padding:12px 14px;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;width:100%}
.row:last-child{border-bottom:0}
.row .mono{width:34px;height:34px;font-size:12px;flex:none}
.row .t{flex:1;min-width:0}
.row .t b{display:block;font-weight:600}
.row .t small{color:var(--muted);font-size:13px}
.row .val{font-variant-numeric:tabular-nums;font-weight:600;white-space:nowrap}
.star{color:var(--accent)}
.calc-head{display:flex;align-items:center;gap:10px;padding:14px 0}
.calc-head h2{flex:1;overflow-wrap:anywhere;min-width:0}
.icon-btn{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--surface);display:grid;place-items:center;font-size:18px;flex:none}
.icon-btn[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}
.card{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:14px}
.fields{display:grid;gap:12px}
.field label{display:block;font-size:14px;font-weight:500;margin-bottom:4px}
.inwrap{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;background:var(--bg);overflow:hidden}
.inwrap input,.inwrap select{flex:1;min-width:0;border:0;background:transparent;padding:10px 12px;font-size:17px;font-variant-numeric:tabular-nums}
.inwrap select{font-size:15.5px}
.inwrap .u{padding:0 12px;color:var(--muted);font-size:14px;white-space:nowrap}
.result{margin-top:14px;border-radius:14px;background:var(--ink);color:var(--bg);padding:16px}
.result .lbl{font-size:14px;opacity:.8}
.result .big{font-family:var(--display);font-size:34px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1;margin:2px 0;overflow-wrap:anywhere}
.result .words{font-size:14px;opacity:.85}
.outs{margin-top:12px;display:grid;gap:0}
.outs div{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-top:1px solid color-mix(in srgb,var(--bg) 22%,transparent);font-size:15px}
.outs div span:last-child{font-variant-numeric:tabular-nums;font-weight:600;text-align:right}
.actions{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.btn{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:9px 14px;font-weight:600;font-size:14.5px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#0B1A3A}
.toast{font-size:14px;color:var(--good);align-self:center}
details.formula{margin-top:12px}
details.formula summary{cursor:pointer;font-weight:600;padding:6px 0}
pre,code{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;font-size:13px}
pre{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px;overflow-x:auto;margin:8px 0;line-height:1.5}
.note{font-size:14px;color:var(--muted);margin-top:10px;padding-left:10px;border-left:3px solid var(--accent)}
nav.tabs{position:fixed;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--line);padding:6px 8px calc(6px + env(safe-area-inset-bottom))}
nav.tabs div{max-width:560px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:4px}
nav.tabs button{border:0;background:none;padding:6px 4px;border-radius:10px;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:12.5px;color:var(--muted)}
nav.tabs button .ic{font-family:var(--display);font-weight:700;font-size:16px}
nav.tabs button[aria-current="page"]{color:var(--accent);background:var(--accent-soft)}
.layers{display:grid;gap:8px}
.layer{border-radius:12px;padding:12px;border:1px solid var(--line);background:var(--surface)}
.layer b{display:block;font-family:var(--display);font-size:15px;margin-bottom:6px}
.layer .boxes{display:flex;flex-wrap:wrap;gap:6px}
.layer .boxes span{font-size:13px;padding:3px 9px;border-radius:999px;background:var(--bg);border:1px solid var(--line)}
.layer.l1{border-left:4px solid var(--accent)}
.layer.l2{border-left:4px solid var(--teal)}
.layer.l3{border-left:4px solid var(--muted)}
.layer.l4{border-left:4px solid var(--ink)}
.arrow{text-align:center;color:var(--muted);font-size:13px;line-height:1}
.badge{display:inline-block;font-size:12.5px;font-weight:600;padding:2px 9px;border-radius:999px}
.badge.ok{background:color-mix(in srgb,var(--good) 16%,transparent);color:var(--good)}
.badge.bad{background:color-mix(in srgb,#C0392B 16%,transparent);color:#C0392B}
table.counts{width:100%;border-collapse:collapse;font-size:14.5px}
table.counts td{padding:7px 0;border-bottom:1px solid var(--line)}
table.counts td:last-child{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}
.phase{display:grid;gap:8px}
.phase div{border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:var(--surface);font-size:14.5px}
.phase b{font-family:var(--display)}
.err{color:#C0392B;font-size:14px;margin-top:6px}
.empty{padding:14px;color:var(--muted);font-size:14.5px}
@media (prefers-reduced-motion: no-preference){.tile,.row,.btn{transition:background .15s,border-color .15s}}
.tile:hover,.row:hover{background:color-mix(in srgb,var(--accent-soft) 45%,var(--surface))}
.kp{margin-top:12px;border:1px solid var(--line);background:var(--surface);border-radius:16px;padding:12px}
.kp-disp{background:var(--ink);color:var(--bg);border-radius:12px;padding:10px 12px;text-align:right;min-height:78px;display:flex;flex-direction:column;justify-content:flex-end}
.kp-exp{font-size:15px;opacity:.75;overflow-wrap:anywhere;font-variant-numeric:tabular-nums;min-height:22px}
.kp-res{font-family:var(--display);font-size:30px;font-weight:700;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;line-height:1.15}
.kp-gst{display:flex;gap:6px;margin:10px 0 8px;flex-wrap:wrap}
.kp-gst button{flex:1;min-width:52px;border:1px solid var(--line);background:var(--bg);border-radius:9px;padding:7px 4px;font-size:13.5px;font-weight:600}
.kp-gst button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.kp-gst button.g{background:var(--accent-soft);border-color:var(--accent)}
.kp-keys{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.kp-keys button{border:0;border-radius:10px;padding:12px 0;font-size:20px;font-weight:600;background:var(--bg);font-variant-numeric:tabular-nums}
.kp-keys button.op{background:var(--teal-soft);color:var(--teal)}
.kp-keys button.eq{background:var(--accent);color:#0B1A3A}
.kp-keys button.fn{color:var(--muted);font-size:17px}
.kp-tape{margin-top:8px;font-size:13.5px;color:var(--muted);display:flex;flex-direction:column;gap:2px;font-variant-numeric:tabular-nums}
.kp-tape button{border:0;background:none;text-align:right;color:inherit;padding:2px 0;overflow-wrap:anywhere}
.smart{border:2px solid var(--accent);background:var(--accent-soft);border-radius:14px;padding:12px 14px;margin-top:12px;display:flex;align-items:center;gap:12px}
.smart .t{flex:1;min-width:0}
.smart small{color:var(--muted);display:block;font-size:13px}
.smart b{font-family:var(--display);font-size:22px;font-variant-numeric:tabular-nums;display:block;overflow-wrap:anywhere}
.hint{font-size:13px;color:var(--muted);margin:6px 2px 0}
.src{font-size:13.5px;color:var(--muted);margin:10px 0 0}
.src b{color:var(--ink);font-weight:600}
.steps{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:6px}
.steps li{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:8px 10px;font-size:14.5px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.steps li code{font-size:13px;color:var(--muted)}
.modal-bg{position:fixed;inset:0;background:rgba(5,10,25,.6);display:flex;align-items:flex-end;justify-content:center;z-index:20;padding:16px}
.modal{background:var(--surface);color:var(--ink);border-radius:18px;padding:16px;width:100%;max-width:520px;max-height:92%;overflow:auto}
.modal h2{margin-bottom:10px}
.modal img{width:100%;border-radius:12px;display:block;border:1px solid var(--line)}
.inv-row{display:grid;grid-template-columns:1fr 58px 88px 36px;gap:6px;align-items:center}
.inv-row input{width:100%;min-width:0;border:1px solid var(--line);border-radius:9px;background:var(--bg);padding:8px;font-size:15px}
.inv-head{font-size:12.5px;color:var(--muted);font-weight:600}
.ad-mock{border:2px dashed var(--line);border-radius:10px;padding:10px;text-align:center;color:var(--muted);font-size:13px}
.kit{display:grid;gap:8px}
.kit .card{position:relative}
.kit .card small{color:var(--muted);font-size:12.5px;display:block;margin-bottom:4px}
.kit .card p{margin:0;white-space:pre-line;font-size:14.5px}
.ok-li{margin:0;padding-left:18px;font-size:14.5px;display:grid;gap:4px}

.app{padding-bottom:110px}
.logo{width:46px;height:46px;border-radius:12px;display:block;flex:none}
.about-hero{display:flex;gap:14px;align-items:center;padding:6px 0 2px}
.about-hero img{border-radius:20px;flex:none}
.about-hero p{margin:4px 0 0;font-size:14.5px}
.famwrap{margin:18px 0 6px}
.links{margin:16px 0 4px;font-size:14.5px}
.links a,.seo a,.foot a{color:var(--teal)}
a.btn{text-decoration:none;display:inline-flex;align-items:center;color:inherit}
.seo{margin-top:30px;padding-top:18px;border-top:2px solid var(--line);font-size:15px;line-height:1.6}
.seo h1{font-family:var(--display);font-size:22px;line-height:1.25;margin:0 0 8px;text-wrap:balance}
.seo h2{font-size:17px;margin:20px 0 8px}
.seo p{margin:0 0 10px;max-width:68ch}
.seo ul{margin:0 0 10px;padding-left:20px}
.seo table{width:100%;border-collapse:collapse;font-size:14.5px;margin:6px 0 10px}
.seo td,.seo th{text-align:left;padding:7px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.seo td:last-child{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}
.seo code{font-size:13px;overflow-wrap:anywhere}
.seo .cats{columns:2 220px;column-gap:24px}
.seo .cats section{break-inside:avoid;margin-bottom:12px}
.seo .cats h2{margin:0 0 4px;font-size:15.5px}
.seo .cats ul{list-style:none;padding:0;margin:0}
.seo .cats li{padding:2px 0}
.foot{margin:26px 0 0;font-size:13px;color:var(--muted);text-align:center}
.crumbs{font-size:13px;color:var(--muted);margin:0 0 6px}
.fields{grid-template-columns:minmax(0,1fr)}
.field,.inv-row>*{min-width:0}
.inwrap input,.inwrap select{width:100%}
.searchrow{display:flex;gap:8px;align-items:center}
.searchrow .search{flex:1;min-width:0}
.mic{flex:none;width:48px;height:48px;border-radius:12px;border:1px solid var(--line);background:var(--surface);display:grid;place-items:center;color:var(--ink)}
.mic.on{background:#C0392B;color:#fff;border-color:#C0392B}
@media (prefers-reduced-motion:no-preference){.mic.on{animation:micpulse 1.2s ease-in-out infinite}}
@keyframes micpulse{50%{opacity:.55}}
select.pill-btn{appearance:none;-webkit-appearance:none;text-align:center;cursor:pointer}
.shopbox summary{cursor:pointer;font-weight:600}
.switch{display:flex;gap:10px;align-items:center;font-weight:500;cursor:pointer}
.switch input{width:22px;height:22px;accent-color:var(--accent)}
.msg{font-size:13px;color:#C0392B;margin:4px 2px 0}
.msg:empty{display:none}
.msg.ok{color:var(--good)}
body.big .app,body.big nav.tabs,body.big .modal{zoom:1.15}
#printArea{display:none}
#printArea .pd-head{display:flex;align-items:center;gap:10px;border-bottom:3px solid #E7B53C;padding-bottom:8px}
#printArea .pd-head img{width:44px;height:44px;border-radius:10px}
#printArea .pd-head b{font-size:13pt}
#printArea .pd-head small{display:block;color:#555;font-size:9.5pt}
#printArea .pd-head span{margin-left:auto;font-size:10pt;color:#555}
#printArea h1{font-size:17pt;margin:12px 0 8px}
#printArea .pd-h2{font-size:12pt;margin:14px 0 6px}
#printArea table{width:100%;border-collapse:collapse;margin:6px 0 12px;font-size:11pt}
#printArea th,#printArea td{border-bottom:1px solid #ccc;padding:6px 4px;text-align:left;vertical-align:top}
#printArea th{font-size:10pt;color:#444}
#printArea .n{text-align:right;font-variant-numeric:tabular-nums}
#printArea tr.tot td{font-weight:700;font-size:13pt;border-top:2px solid #000}
#printArea .pd-steps{font-size:9.5pt;color:#333}
#printArea .pd-steps li{margin-bottom:4px}
#printArea .pd-foot{margin-top:18px;font-size:9pt;color:#666;border-top:1px solid #ccc;padding-top:6px}
#printArea .pd-two{display:flex;justify-content:space-between;gap:16px;font-size:11pt;margin-bottom:8px}
#printArea .pd-upi{display:flex;gap:14px;align-items:center;border:1px solid #ccc;border-radius:10px;padding:8px 12px;margin-top:10px;break-inside:avoid;font-size:11pt}
@media print{
  @page{size:A4;margin:12mm}
  html,body{background:#fff!important}
  body>*:not(#printArea){display:none!important}
  #printArea{display:block!important;color:#000;font-family:"Poppins DN",system-ui,sans-serif}
}

/* v1.1.1: bigger tap area for list links on calculator pages */
.list a,.list .row{min-height:44px}