:root{
  --paper:#F4F6F7; --surface:#FFFFFF; --ink:#16202A; --steel:#5B6B7A; --line:#D6DCE1;
  --accent:#0055CC; --accent-soft:#E4EDFB; --pro:#8A4B08; --pro-soft:#FBF0E0;
  --ok:#2F7D4F; --muted-bg:#EEF1F3; --tip-bg:#16202A; --tip-fg:#FFFFFF; --err:#C0392B;
  --sans:"IBM Plex Sans","Segoe UI",Roboto,Arial,sans-serif;
  --mono:"IBM Plex Mono",Consolas,"Liberation Mono",monospace;
  --tile-h:96px; --h:40px; --h-sm:32px; --scroll-thumb:#C3CCD5;
  color-scheme:light;
  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"]){
  --paper:#10161C; --surface:#18212A; --ink:#E7ECF0; --steel:#98A6B3; --line:#2A3642;
  --accent:#6FA3FF; --accent-soft:#17263F; --pro:#E6A857; --pro-soft:#34281A;
  --ok:#6CC592; --muted-bg:#1C252E; --tip-bg:#E7ECF0; --tip-fg:#10161C; --err:#F08A7C; --scroll-thumb:#3A4755; color-scheme:dark;}}
:root[data-theme="dark"]{
  --paper:#10161C; --surface:#18212A; --ink:#E7ECF0; --steel:#98A6B3; --line:#2A3642;
  --accent:#6FA3FF; --accent-soft:#17263F; --pro:#E6A857; --pro-soft:#34281A;
  --ok:#6CC592; --muted-bg:#1C252E; --tip-bg:#E7ECF0; --tip-fg:#10161C; --err:#F08A7C; --scroll-thumb:#3A4755; color-scheme:dark;}
*,*::before,*::after{box-sizing:inherit}
/* scrollbars in the interface colours */
*{scrollbar-width:thin;scrollbar-color:var(--scroll-thumb) transparent}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--scroll-thumb);border-radius:8px;border:2px solid transparent;background-clip:padding-box}
[hidden]{display:none!important}
html{height:100%;scroll-padding-top:calc(16px + env(safe-area-inset-top,0px))}
body{margin:0;min-height:100%;background:var(--paper);color:var(--ink);font:400 16px/1.5 var(--sans)}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
.wrap{max-width:1360px;margin:0 auto;padding:22px 20px 110px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header ---------- */
header.top{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:18px}
.brand{display:flex;align-items:center;gap:16px;min-width:0;flex:1 1 auto}
.brand > div{min-width:0}
.product,h1{overflow-wrap:anywhere}
@media (max-width:640px){.brand{flex-wrap:wrap;gap:10px}.brand .divider{display:none}.brand > div{flex-basis:100%}}
.logo{height:26px;width:auto;flex:none}
.logo-trigger{display:inline-flex;border:0;background:transparent;padding:4px;margin:-4px;border-radius:8px;cursor:default;-webkit-user-select:none;user-select:none;touch-action:manipulation}
.logo-trigger img{pointer-events:none;-webkit-user-drag:none}
.logo.dark-only{display:none}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .logo.light-only{display:none}
  :root:not([data-theme="light"]) .logo.dark-only{display:block}}
:root[data-theme="dark"] .logo.light-only{display:none}
:root[data-theme="dark"] .logo.dark-only{display:block}
.brand .divider{width:1px;align-self:stretch;background:var(--line)}
.product{font-size:14px;color:var(--steel);margin:0}
h1{font-size:clamp(24px,3.4vw,34px);line-height:1.1;font-weight:600;margin:2px 0 0;letter-spacing:-.01em}
.top-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
a.link{color:var(--accent);text-decoration:none;font-size:14px;border-bottom:1px solid transparent}
a.link:hover{border-bottom-color:var(--accent)}

/* ---------- base configuration and mode bar ---------- */
.band{display:grid;grid-template-columns:auto 320px minmax(220px,340px) auto;align-items:center;gap:12px 16px;border-left:3px solid var(--accent);background:var(--surface);
      border-radius:0 12px 12px 0;padding:12px 16px;margin-bottom:6px}
@media (max-width:1100px){.band{grid-template-columns:1fr 1fr}.band .b-title{grid-column:1 / -1}}
@media (max-width:640px){.band{grid-template-columns:1fr}}
.band .b-title{font-size:14px;font-weight:600}
.band select,.band input{width:100%;height:var(--h);padding:0 12px;border:1.5px solid var(--line);border-radius:10px;background:var(--paper);font-size:15px}
.band input{font:500 14px var(--mono)}
.band input.bad{border-color:var(--err)}
.band-msg{min-height:22px;font-size:13px;margin:0 0 18px 19px;color:var(--steel)}
.band-msg.err{color:var(--err)}
.band-msg.warn{color:var(--pro)}
.band-msg.ok{color:var(--ok)}
.switch.off{visibility:hidden}
.switch{display:inline-flex;align-items:center;gap:10px}
.switch .s-label{font-size:14px;font-weight:600}
.switch .track{display:inline-flex;align-items:stretch;height:var(--h);box-sizing:border-box;background:var(--muted-bg);border-radius:10px;padding:3px;border:1.5px solid var(--line)}
.switch .track button{border:0;background:transparent;border-radius:7px;padding:0 20px;cursor:pointer;font-weight:600;font-size:14px;color:var(--steel)}
.switch .track button[aria-pressed="true"]{background:var(--accent);color:#fff}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .switch .track button[aria-pressed="true"]{color:#0E1623}}
:root[data-theme="dark"] .switch .track button[aria-pressed="true"]{color:#0E1623}


/* ---------- grid ---------- */
.layout{display:grid;grid-template-columns:190px minmax(0,1fr) 380px;gap:32px;align-items:start}
@media (max-width:1180px){.layout{grid-template-columns:minmax(0,1fr) 340px}.rail{display:none}.layout > aside.summary{margin-top:0}}
@media (max-width:900px){.layout{grid-template-columns:minmax(0,1fr)}}
.layout > *,.layout2 > *{min-width:0}
.rail{position:sticky;top:calc(20px + env(safe-area-inset-top,0px))}
.rail ol{list-style:none;margin:0;padding:0 0 0 18px;position:relative}
.rail ol::before{content:"";position:absolute;left:4px;top:6px;bottom:6px;width:2px;background:var(--line);border-radius:2px}
.rail .knob{position:absolute;left:0;width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);transition:top .35s cubic-bezier(.3,.7,.2,1)}
.rail a{display:block;padding:7px 0;text-decoration:none;color:var(--steel);line-height:1.25}
.rail a .r-title{display:block;font-size:14px}
.rail a .r-val{display:block;font:500 12px var(--mono);color:var(--steel);opacity:.8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rail a.active .r-title{color:var(--ink);font-weight:600}
.rail a.active .r-val{color:var(--accent);opacity:1}
.chips{display:none}
@media (max-width:1180px){.chips{display:flex;gap:6px;overflow-x:auto;position:sticky;top:0;z-index:5;background:var(--paper);padding:10px 0;margin:-6px 0 10px;scrollbar-width:none}
 .chips a{flex:none;text-decoration:none;color:var(--steel);border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:13px;background:var(--surface)}
 .chips a.active{color:var(--accent);border-color:var(--accent)}}

/* ---------- sections and tiles ---------- */
section.opt{padding:22px 0 26px;border-top:1px solid var(--line)}
#sections::after{content:"";display:block;height:35vh}
section.opt:first-of-type{border-top:0;padding-top:0}
section.opt h2{font-size:20px;font-weight:600;margin:0 0 4px}
section.opt .hint{font-size:14px;color:var(--steel);margin:0 0 14px}
.sub-label{font-size:14px;color:var(--steel);margin:18px 0 8px}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(172px,1fr));gap:10px}
.tile{position:relative;height:var(--tile-h);text-align:left;background:var(--surface);border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;cursor:pointer;display:grid;grid-template-rows:auto auto 1fr;row-gap:1px;min-width:0}
.tile > span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.tile .t1{font-weight:600;font-size:16px}
.tile .t2{font-size:13px;color:var(--steel)}
.tile .t3{font:500 12px var(--mono);color:var(--steel);align-self:end}
.tile[aria-checked="true"]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}
.tile[aria-checked="true"] .t3{color:var(--accent)}
.tile[aria-disabled="true"]{cursor:not-allowed;background:var(--muted-bg)}
.tile[aria-disabled="true"] > span{opacity:.55}
.tile .ext-ic{display:inline-flex;vertical-align:-3px;margin-left:6px;color:var(--pro)}
.tile .ext-ic svg{width:14px;height:14px}
.ext-title{display:flex;align-items:center;gap:8px}
.ext-title svg{color:var(--pro)}
.tile.static{cursor:default}
.vgroups{display:grid;grid-template-columns:1fr;gap:16px}
.vgroup .vg-head{display:flex;align-items:baseline;gap:8px;margin:0 0 8px}
.vgroup .vg-head b{font:600 13px var(--mono);color:var(--accent);background:var(--accent-soft);border-radius:6px;padding:1px 7px;cursor:help}
.vgroup .vg-head span{font-size:13px;color:var(--steel)}
.vgroup .tiles{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:1100px){.vgroup .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.vgroup .tiles{grid-template-columns:minmax(0,1fr)}}
.tile.variant{height:88px;padding:10px 12px}
.tile.variant .t1{font-size:13px;font-weight:500;color:var(--steel)}
.tile.variant .t1 b{font:600 20px/1.1 var(--sans);color:var(--ink);display:inline}
.tile.variant[aria-checked="true"] .t1 b{color:var(--accent)}
.tile.variant .t2{font-size:12px}
.tile.variant .t3{font-size:11px}
.tile[data-why]:hover::before,.tile[data-why]:focus-visible::before{content:attr(data-why);position:absolute;left:10px;right:10px;bottom:calc(100% + 8px);z-index:10;background:var(--tip-bg);color:var(--tip-fg);font:400 13px/1.35 var(--sans);padding:8px 10px;border-radius:8px;white-space:normal;pointer-events:none}
.tile[data-why]:hover::after,.tile[data-why]:focus-visible::after{content:"";position:absolute;left:24px;bottom:calc(100% + 2px);border:6px solid transparent;border-top-color:var(--tip-bg);z-index:10}

/* ---------- summary ---------- */
.layout > aside.summary{margin-top:8px}
aside.summary{position:sticky;top:calc(20px + env(safe-area-inset-top,0px));background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;max-height:calc(100vh - 40px);overflow:auto}
@media (max-width:900px){aside.summary{position:static;max-height:none}}
.cap{font-size:14px;color:var(--steel);margin:0 0 6px}
.cap-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:0 0 4px}
.cap-row .cap{margin:0}
.cap-row .icons{display:flex;gap:6px}
.cap-row .icon-btn{width:30px;height:30px}
.article{font:600 14px/1.5 var(--mono);white-space:nowrap;overflow:hidden;text-overflow:clip;margin:0 0 6px;letter-spacing:-.02em}
.art-variant{font:600 22px/1.2 var(--mono);margin:0 0 2px;white-space:nowrap}
.art-variant a,.article a{color:inherit;text-decoration:none;border-bottom:2px solid transparent}
.art-variant a:hover,.art-variant a:focus-visible{color:var(--accent);border-bottom-color:var(--accent)}
.art-variant .fix{color:var(--steel);font-weight:500}
.article .fix{color:var(--steel)}
.article a{color:inherit;text-decoration:none;border-bottom:2px solid transparent}
.article a:hover,.article a:focus-visible{color:var(--accent);border-bottom-color:var(--accent)}
.article a.changed{animation:flash .9s ease-out}
@keyframes flash{from{background:var(--accent-soft)}to{background:transparent}}
.status{font-size:13px;margin:0 0 14px;min-height:20px;color:var(--steel)}
.status.preset{color:var(--ok)}
.status.pro{color:var(--pro)}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:var(--h);box-sizing:border-box;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:0 14px;cursor:pointer;font:500 14px/1.3 var(--sans);text-decoration:none;white-space:nowrap}
a.btn:hover,button.btn:hover:not(:disabled){border-color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn:disabled{opacity:.5;cursor:not-allowed}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .btn.primary{color:#0E1623}}
:root[data-theme="dark"] .btn.primary{color:#0E1623}
.bom{font-size:13px}
.bom .row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 12px;padding:8px 0;border-top:1px solid var(--line)}
.bom .row .q{color:var(--steel);white-space:nowrap}
.bom .row .pn{grid-column:1 / -1;font:500 11px var(--mono);color:var(--steel)}
.bom .grp{font-size:12px;color:var(--steel);margin:14px 0 2px}
.bom details{border-top:1px solid var(--line)}
.bom details > summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:14px minmax(0,1fr) auto;gap:2px 8px;padding:8px 0;align-items:baseline}
.bom details > summary::-webkit-details-marker{display:none}
.bom details > summary::before{content:"▸";color:var(--steel);transition:transform .15s;display:inline-block}
.bom details[open] > summary::before{transform:rotate(90deg)}
.bom details > summary .n{font-weight:600}
.bom details > summary .pn{grid-column:2 / -1;font:500 11px var(--mono);color:var(--steel)}
.bom details .kids{padding-left:22px}

/* ---------- specification tables ---------- */
.spec{overflow-x:auto}
table.spec-t{width:100%;border-collapse:collapse;font-size:14px;min-width:620px}
table.spec-t th{text-align:left;font-size:12px;color:var(--steel);font-weight:500;padding:0 10px 8px 0;border-bottom:1px solid var(--line)}
table.spec-t td{padding:8px 10px 8px 0;border-bottom:1px solid var(--line);vertical-align:middle}
table.spec-t td.num,table.spec-t th.num{text-align:right;white-space:nowrap}
table.spec-t td.code{font:500 12px var(--mono);color:var(--accent);white-space:nowrap}
table.spec-t tr.child td:first-child{padding-left:22px;color:var(--steel)}
table.spec-t select{width:100%;min-width:210px;height:var(--h-sm);padding:0 10px;border:1.5px solid var(--line);border-radius:9px;background:var(--surface);font-size:13px}
table.spec-t select.empty{border-color:var(--err)}
table.spec-t tfoot td{font-weight:600;border-bottom:0;padding-top:12px}
.spec-state{font-size:14px;color:var(--steel);margin:14px 0}
.spec-state.ready{color:var(--ok)}

/* ---------- data panel ---------- */
.rules{display:none;margin-top:8px;padding:18px;border:1.5px dashed var(--pro);border-radius:14px;background:var(--pro-soft)}
.pro .rules{display:block}
.rules h2{font-size:18px;margin:0 0 4px}
.rules p{font-size:14px;color:var(--steel);margin:0 0 12px}
.rules .meta{font:500 12px var(--mono);color:var(--pro);margin-bottom:12px}

/* ---------- production page ---------- */
.load-band{display:flex;gap:12px;align-items:center;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin-bottom:22px}
.load-band label{display:block;font-size:13px;color:var(--steel);margin-bottom:6px}
.load-band .field-icon{max-width:none}
.load-band input{width:100%;height:var(--h);padding:0 12px;border:1.5px solid var(--line);border-radius:10px;background:var(--paper);font:500 15px var(--mono)}
.load-band input.bad{border-color:var(--err)}
.cfg-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin:0 0 12px}
.cfg-head .cv{font:600 22px var(--sans)}
.cfg-head .cv b{color:var(--accent)}
.cfg-head .cd{font-size:14px;color:var(--steel)}
table.cfg-table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:24px;font-size:14px}
table.cfg-table th{text-align:left;font-weight:500;color:var(--steel);font-size:12px;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--muted-bg)}
table.cfg-table td{padding:9px 14px;border-bottom:1px solid var(--line);vertical-align:top}
table.cfg-table tr:last-child td{border-bottom:0}
table.cfg-table td.seg{color:var(--steel);width:190px}
table.cfg-table td.code{font:600 14px var(--mono);color:var(--accent);width:110px;white-space:nowrap}
h2.sec{font-size:20px;font-weight:600;margin:0 0 4px}
p.sec-hint{font-size:14px;color:var(--steel);margin:0 0 14px}

/* ---------- utilities ---------- */
.fatal{max-width:70ch;margin:40px auto;background:var(--surface);border:1.5px solid var(--line);border-radius:16px;padding:28px}
.fatal h1{font-size:24px;margin:0 0 12px}
.fatal p,.fatal li{font-size:15px;color:var(--steel);margin:0 0 10px}
.fatal code{font:500 13px var(--mono);color:var(--ink)}
.fatal b{color:var(--err);font-weight:600}
.bar{display:none}
@media (max-width:900px){.bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:6;gap:10px;align-items:center;justify-content:space-between;background:var(--surface);border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px))}
 .bar code{font:600 12px var(--mono);word-break:break-all}}
dialog{border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink);width:min(440px,calc(100vw - 32px));padding:22px}
dialog.wide{width:min(760px,calc(100vw - 32px))}
dialog::backdrop{background:rgba(10,15,20,.45)}
dialog h3{margin:0 0 6px;font-size:18px}
dialog p{margin:0 0 14px;font-size:14px;color:var(--steel)}
dialog input[type=password]{width:100%;height:var(--h);padding:0 12px;border:1.5px solid var(--line);border-radius:10px;background:var(--paper);margin-bottom:6px}
dialog textarea{width:100%;height:50vh;padding:10px;border:1.5px solid var(--line);border-radius:10px;background:var(--paper);font:12px/1.45 var(--mono)}
.err{color:var(--err);font-size:13px;min-height:18px;margin:0 0 10px}
.tipbox{position:absolute;z-index:40;max-width:340px;background:var(--tip-bg);color:var(--tip-fg);font:400 13px/1.4 var(--sans);padding:8px 11px;border-radius:8px;white-space:pre-line;opacity:0;pointer-events:none;transition:opacity .15s}
.tipbox.show{opacity:1}
.gate input{width:100%;height:var(--h);padding:0 12px;border:1.5px solid var(--line);border-radius:10px;background:var(--paper);margin:6px 0}
/* title page */
.home-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(380px,100%),1fr));gap:18px;margin-top:10px}
.home-card{display:flex;flex-direction:column;gap:10px;min-height:170px;text-decoration:none;color:inherit;background:var(--surface);border:1.5px solid var(--line);border-radius:16px;padding:20px;transition:border-color .15s,transform .15s}
.home-card:hover,.home-card:focus-visible{border-color:var(--accent);transform:translateY(-2px)}
.home-card .hc-kind{font:600 12px var(--mono);color:var(--accent)}
.home-card h2{font-size:clamp(18px,calc(0.9vw + 8px),24px);margin:0;overflow-wrap:anywhere}
.home-sec{font-size:15px;color:var(--steel);margin:30px 0 10px;display:flex;align-items:center;gap:10px}
.home-grid.small .home-card{min-height:120px}
.home-grid.small h2{font-size:19px}
.home-card p{font-size:14px;color:var(--steel);margin:0}
.home-card .hc-go{margin-top:auto;font-size:14px;color:var(--accent)}
.home-card.locked .hc-kind{color:var(--pro)}
.home-lead{font-size:16px;color:var(--steel);margin:0 0 22px}
/* editors */
.ed-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0 0 14px}
.ed-bar select,.ed-bar input{height:var(--h);padding:0 10px;border:1.5px solid var(--line);border-radius:9px;background:var(--surface);font-size:14px}
table.ed{width:100%;border-collapse:collapse;font-size:13px}
table.ed th{text-align:left;font-size:12px;color:var(--steel);font-weight:500;padding:0 6px 8px 0;border-bottom:1px solid var(--line);white-space:nowrap}
table.ed td{padding:5px 6px 5px 0;border-bottom:1px solid var(--line);vertical-align:top}
table.ed input,table.ed select{height:var(--h-sm)}
table.ed input,table.ed select,table.ed textarea{width:100%;padding:0 8px;border:1.5px solid var(--line);border-radius:7px;background:var(--surface);font-size:13px}
table.ed input.mono{font:500 12px var(--mono)}
table.ed input.bad,table.ed select.bad{border-color:var(--err)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin-bottom:14px}
.card h3{margin:0 0 10px;font-size:16px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px 16px}
.field label{display:block;font-size:12px;color:var(--steel);margin-bottom:4px}
.field input,.field select{height:var(--h)}
.field input,.field select,.field textarea{width:100%;padding:0 10px;border:1.5px solid var(--line);border-radius:9px;background:var(--paper);font-size:14px}
.checks{display:flex;gap:10px;flex-wrap:wrap}
.checks label{display:inline-flex;gap:5px;align-items:center;font-size:14px;color:var(--ink)}
.issues{font-size:13px;margin:6px 0 0;padding-left:18px;color:var(--pro)}
.issues.ok{color:var(--ok);list-style:none;padding-left:0}
/* Pro mode bar */
.pro-bar{display:flex;align-items:center;gap:12px 18px;flex-wrap:wrap;background:var(--pro-soft);border:1.5px solid var(--pro);border-radius:12px;padding:10px 14px;margin:0 0 18px}
.pro-bar .pb-mark{display:inline-grid;place-items:center;height:22px;padding:0 8px;border-radius:999px;background:var(--pro);color:var(--surface);font:600 12px var(--mono)}
.pro-bar .pb-title{font-weight:600;color:var(--pro);font-size:14px}
.pro-bar .pb-links{display:flex;gap:4px;flex-wrap:wrap;flex:1 1 auto}
.pro-bar .pb-links a{color:var(--ink);text-decoration:none;font-size:14px;padding:5px 10px;border-radius:8px}
.pro-bar .pb-links a:hover{background:var(--surface)}
.pro-bar .pb-links a[aria-current="page"]{background:var(--surface);font-weight:600}
.pro-bar .pb-exit{border-color:var(--pro);color:var(--pro)}
/* tooltip with markup */
.tipbox b{font-weight:700;display:block;margin-bottom:2px}
.tipbox hr{border:0;border-top:1px solid currentColor;opacity:.3;margin:6px 0}
.tipbox .tl{display:flex;justify-content:space-between;gap:18px}
.tipbox .tl span:last-child{font-family:var(--mono)}
.tipbox .tu{margin-top:4px}
.tipbox .tu > span{font-weight:600}
.tipbox ul{margin:2px 0 0;padding-left:16px}
.tipbox li{margin:1px 0}
/* specification window */
dialog.spec-dlg{width:min(1280px,calc(100vw - 32px));height:calc(100vh - 48px);max-height:calc(100vh - 48px);padding:0;overflow:hidden}
dialog.spec-dlg[open]{display:flex;flex-direction:column}
.sd-head{display:flex;align-items:center;gap:12px 16px;flex-wrap:wrap;padding:18px 22px;border-bottom:1px solid var(--line)}
.sd-head h3{margin:0;font-size:18px;flex:1 1 auto}
.sd-head .sd-art{font:600 13px var(--mono);color:var(--accent);flex-basis:100%}
.sd-tools{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.sd-tools label{display:inline-flex;align-items:center;gap:6px;font-size:14px}
.sd-tools select{padding:7px 10px;border:1.5px solid var(--line);border-radius:9px;background:var(--surface)}
.sd-body{overflow:auto;padding:6px 22px 10px;flex:1 1 auto}
.sd-warn{flex-basis:100%;display:flex;flex-direction:column;gap:4px;color:var(--pro);background:var(--pro-soft);border-radius:8px;padding:8px 12px;font-size:14px}
.sd-warn .wl{display:flex;gap:8px;align-items:flex-start}
.sd-warn details summary{cursor:pointer}
.sd-warn details ul{margin:4px 0 2px;padding-left:22px}
.sd-warn details li{margin:1px 0}
.sd-warn svg,.no-price svg{flex:none;color:var(--pro)}
.no-price{display:inline-flex;cursor:help}
.sd-foot{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:14px 22px;border-top:1px solid var(--line)}
.sd-foot .sd-note{flex:1 1 240px;font-size:13px;color:var(--steel)}
table.spec-t td.numc{white-space:nowrap;color:var(--steel);font:500 12px var(--mono)}
table.spec-t tr.lvl0 td{font-weight:600}
table.spec-t tr.muted td{color:var(--steel)}
table.spec-t tr.muted td.code{color:var(--steel)}
/* icons */
.icon-btn{display:inline-grid;place-items:center;width:var(--h-sm);height:var(--h-sm);padding:0;border:1.5px solid var(--line);background:var(--surface);color:var(--steel);border-radius:8px;cursor:pointer}
.icon-btn:hover{color:var(--accent);border-color:var(--accent)}
.icon-btn.danger:hover{color:var(--err);border-color:var(--err)}
.icon-btn svg{width:15px;height:15px}
.row-actions{display:flex;gap:6px;white-space:nowrap}
/* Pro mode notice on the working pages */
.pro-note{display:flex;align-items:center;gap:10px;background:var(--pro-soft);border:1px solid var(--pro);color:var(--pro);border-radius:10px;padding:8px 12px;margin:0 0 16px;font-size:14px}
.pro-note svg{flex:none}
.pro-note span{flex:1 1 auto}
.pro-note .pro-off{border-color:var(--pro);color:var(--pro);height:var(--h-sm);padding:0 12px;font-size:13px}
/* header navigation: home and neighbouring sections */
.page-nav{display:inline-flex;align-items:stretch;height:var(--h);box-sizing:border-box;padding:3px;gap:2px;border:1.5px solid var(--line);border-radius:10px;background:var(--surface)}
.page-nav a{display:inline-flex;align-items:center;gap:6px;padding:0 14px;border-radius:7px;text-decoration:none;color:var(--steel);font:500 14px var(--sans);white-space:nowrap}
.page-nav a:hover,.page-nav a:focus-visible{color:var(--ink);background:var(--muted-bg)}
.page-nav a[aria-current="page"]{background:var(--accent-soft);color:var(--accent);font-weight:600}
.page-nav .pn-home{padding:0 11px}
.page-nav .pn-home svg{width:16px;height:16px}
@media (max-width:520px){.page-nav{max-width:100%;overflow-x:auto}.page-nav a{padding:0 10px}}
/* the Home button in the header */
.home-btn{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1.5px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);text-decoration:none;font:500 14px var(--sans)}
.home-btn:hover,.home-btn:focus-visible{border-color:var(--accent);color:var(--accent)}
.home-btn svg{width:16px;height:16px}
/* leave-page window */
#cduLeaveDlg{width:min(520px,calc(100vw - 32px))}
#cduLeaveDlg .lv-field{display:flex;align-items:center;gap:6px;background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:6px 6px 6px 10px;margin:0 0 14px}
#cduLeaveDlg .lv-art{flex:1 1 auto;min-width:0;font:600 13px var(--mono);color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#cduLeaveDlg .lv-icons{display:flex;gap:4px;flex:none}
#cduLeaveDlg .icon-btn{width:30px;height:30px}
.pro-note a{color:inherit;font-weight:600}
/* sub-code with icons */
.art-row{display:flex;align-items:center;gap:6px;min-width:0}
.art-row .article{flex:1 1 auto;min-width:0;margin:0}
.art-row .icon-btn{width:30px;height:30px}
/* field with an icon */
.field-icon{position:relative;display:block}
.field-icon input{padding-right:42px!important}
.field-icon .icon-btn{position:absolute;right:7px;top:50%;transform:translateY(-50%);width:30px;height:30px}
.info-ic{display:inline-grid;place-items:center;width:18px;height:18px;border-radius:50%;border:1.5px solid var(--steel);color:var(--steel);font:600 11px var(--sans);margin-left:8px;cursor:help;vertical-align:2px}
/* two columns on the production page */
.layout2{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:32px;align-items:start}
@media (max-width:1000px){.layout2{grid-template-columns:minmax(0,1fr)}}
.sub-group{font-size:13px;color:var(--steel);margin:14px 0 8px;font-weight:500}
.sub-group:first-of-type{margin-top:0}
.alert-panel{position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:60;width:min(460px,calc(100vw - 32px));max-height:50vh;overflow:auto;
  display:flex;flex-direction:column;gap:6px;padding:10px 12px;border-radius:12px;background:var(--surface);border:1.5px solid var(--err);box-shadow:0 10px 30px rgba(0,0,0,.35)}
@media (max-width:900px){.alert-panel{bottom:calc(76px + env(safe-area-inset-bottom,0px))}}
.alert-panel .al{display:flex;gap:8px;align-items:flex-start;font-size:14px;color:var(--err)}
.alert-panel .al.warn{color:var(--pro)}
.alert-panel .al svg{flex:none;margin-top:2px}
.alert-panel .al > span,.alert-panel .al > details{flex:1 1 auto;min-width:0}
.alert-panel details summary{cursor:pointer;font-weight:600}
.alert-panel ul{margin:4px 0 2px;padding-left:20px;color:var(--ink)}
.alert-panel li{margin:2px 0}
.alert-panel .al-x{flex:none;border:0;background:transparent;color:var(--steel);font-size:18px;line-height:1;cursor:pointer;padding:0 2px}
/* autocompletion of the finished-product code */
.ac-pop{position:absolute;left:0;right:0;top:calc(100% + 6px);z-index:50;background:var(--surface);border:1.5px solid var(--line);border-radius:10px;
  box-shadow:0 10px 28px rgba(0,0,0,.35);padding:6px;max-height:320px;overflow:auto}
.ac-head{font-size:12px;color:var(--steel);padding:4px 8px 2px}
.ac-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;border:0;background:transparent;border-radius:7px;padding:6px 8px;cursor:pointer;color:var(--ink);font:14px var(--sans)}
.ac-item b{font:600 13px var(--mono);min-width:44px;color:var(--accent)}
.ac-item span{flex:1 1 auto;min-width:0;color:var(--steel);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ac-item svg{width:14px;height:14px;color:var(--pro);flex:none}
.ac-item:hover,.ac-item.on{background:var(--accent-soft)}
.ac-err{display:flex;gap:8px;align-items:flex-start;color:var(--err);font-size:13px;padding:6px 8px}
.ac-err svg{flex:none;margin-top:1px}
.ac-ok{color:var(--ok);font-size:13px;padding:6px 8px}
.toast{position:fixed;left:50%;bottom:calc(84px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--tip-bg);color:var(--tip-fg);padding:8px 14px;border-radius:8px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:20}
.toast.show{opacity:1}