/* Конфигуратор щита. Popov.Solutions. Plain CSS, no build step. */
@font-face{font-family:"Inter";src:url("/fonts/Inter-Regular.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Inter";src:url("/fonts/Inter-SemiBold.woff2") format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Inter";src:url("/fonts/Inter-Bold.woff2") format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Cormorant Garamond";src:url("/fonts/CormorantGaramond-Medium.woff2") format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url("/fonts/JetBrainsMono-Regular.woff2") format("woff2");font-weight:400;font-display:swap}
/* The drawing font; family names the server SVG may use */
@font-face{font-family:"GOST type A";src:url("/fonts/GOST2.304-81TypeA-Regular.ttf") format("truetype")}
@font-face{font-family:"GOST";src:url("/fonts/GOST2.304-81TypeA-Regular.ttf") format("truetype")}
@font-face{font-family:"GOST 2.304-81 Type A";src:url("/fonts/GOST2.304-81TypeA-Regular.ttf") format("truetype")}
@font-face{font-family:"GOST2.304-81TypeA";src:url("/fonts/GOST2.304-81TypeA-Regular.ttf") format("truetype")}

:root{
  --bg:#FAF8F4; --surface:#FFFFFF; --surface-2:#F4F1EA; --ink:#14161A; --ink-2:#4A4F57; --ink-3:#7A7F87;
  --line:#E3DED4; --line-2:#CFC8BB; --bronze:#A8875A; --bronze-d:#8A6C42; --bronze-l:#C29A62; --bronze-bg:#F3EBDD;
  --ok:#2F6B45; --ok-bg:#E6F0E9; --warn:#9A6A12; --warn-bg:#FBF1DA; --err:#A8342B; --err-bg:#F8E4E1; --hold:#55608A; --hold-bg:#E8EAF4; --info:#4A5560; --info-bg:#EDEFF1;
  --r:6px; --r-lg:10px; --shadow:0 1px 2px rgba(20,22,26,.06),0 4px 16px rgba(20,22,26,.05);
  --f-text:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif; --f-head:"Cormorant Garamond","Times New Roman",serif; --f-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --gap:16px; --pad:24px; --row-h:36px;
}
*{box-sizing:border-box}
html{font-size:15px;-webkit-text-size-adjust:100%}
@media (min-width:1900px){html{font-size:16px}}
@media (min-width:2500px){html{font-size:19px}}
@media (min-width:3400px){html{font-size:24px}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-text);line-height:1.45;overflow-x:hidden;min-width:320px}
h1,h2,h3{margin:0;font-weight:500}
h1{font-family:var(--f-head);font-size:2.2rem;line-height:1.1;letter-spacing:.005em}
h2{font-family:var(--f-head);font-size:1.6rem;line-height:1.15}
h3{font-size:1rem;font-weight:600}
p{margin:0}
.mono,code{font-family:var(--f-mono);font-size:.92em}
.muted{color:var(--ink-3)} .small{font-size:.85rem}
[hidden]{display:none!important}
:focus{outline:none}
:focus-visible{outline:2px solid var(--bronze);outline-offset:2px;border-radius:3px}
button,input,select,textarea{font:inherit;color:inherit}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* progress */
.progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:100;background:transparent;overflow:hidden}
.progress span{display:block;height:100%;width:30%;background:var(--bronze-l);animation:slide 1.1s ease-in-out infinite}
@keyframes slide{0%{margin-left:-30%}100%{margin-left:100%}}

/* top bar */
.topbar{background:var(--ink);color:#EDE8DE;position:sticky;top:0;z-index:50}
.topbar-inner{display:flex;align-items:center;gap:32px;padding:10px var(--pad);max-width:2400px;margin:0 auto}
.brand{display:flex;flex-direction:column;color:inherit;text-decoration:none;line-height:1.1}
.brand-mark{font-family:var(--f-head);font-size:1.45rem;letter-spacing:.01em}
.brand-mark span{color:var(--bronze-l)}
.brand-sub{font-size:.7rem;text-transform:uppercase;letter-spacing:.14em;color:#9AA0A8}
.stepper{display:flex;gap:4px;flex:1;justify-content:center;counter-reset:s}
.step{display:flex;align-items:center;gap:10px;padding:8px 16px;border-radius:var(--r);background:transparent;border:0;color:#A9AEB6;cursor:pointer;font-size:.92rem}
.step:disabled{cursor:not-allowed;opacity:.45}
.step .n{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;border:1px solid currentColor;font-size:.78rem;font-family:var(--f-mono)}
.step.done .n{background:var(--bronze-l);border-color:var(--bronze-l);color:var(--ink)}
.step.active{color:#fff;background:rgba(194,154,98,.18)}
.step.active .n{border-color:var(--bronze-l);color:var(--bronze-l)}
.step.active.done .n{color:var(--ink)}
.topbar-actions{display:flex;align-items:center;gap:12px}
.save-state{font-size:.78rem;color:#9AA0A8}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:38px;padding:0 18px;border-radius:var(--r);border:1px solid var(--line-2);background:var(--surface);cursor:pointer;font-weight:600;font-size:.92rem;white-space:nowrap;transition:background .12s,border-color .12s}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:var(--ink);border-color:var(--ink);color:#fff}
.btn-accent{background:var(--bronze);border-color:var(--bronze);color:#fff}
.btn-ghost{background:transparent}
.topbar .btn-ghost{color:#EDE8DE;border-color:rgba(255,255,255,.25)}
.btn-sm{height:30px;padding:0 12px;font-size:.82rem}
.btn-icon{width:28px;height:28px;padding:0;font-size:.9rem;font-weight:400;border-color:transparent;background:transparent;color:var(--ink-2)}
.btn.busy{position:relative;color:transparent!important}
.btn.busy::after{content:"";position:absolute;width:16px;height:16px;border:2px solid var(--bronze);border-right-color:transparent;border-radius:50%;animation:spin .7s linear infinite}
.btn-primary.busy::after{border-color:#fff;border-right-color:transparent}
@keyframes spin{to{transform:rotate(360deg)}}

/* layout */
.view{max-width:2400px;margin:0 auto;padding:28px var(--pad) 64px;outline:none}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:20px}
.page-head .lead{color:var(--ink-2);margin-top:6px;max-width:70ch}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow)}
.panel-pad{padding:20px 24px}
.grid{display:grid;gap:var(--gap)}
.footer-nav{display:flex;justify-content:space-between;gap:12px;margin-top:24px}
.tag{display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:11px;background:var(--surface-2);color:var(--ink-2);font-size:.74rem;font-weight:600;white-space:nowrap}
.tag.bronze{background:var(--bronze-bg);color:var(--bronze-d)}
.tag.ok{background:var(--ok-bg);color:var(--ok)} .tag.warn{background:var(--warn-bg);color:var(--warn)} .tag.err{background:var(--err-bg);color:var(--err)} .tag.hold{background:var(--hold-bg);color:var(--hold)} .tag.info{background:var(--info-bg);color:var(--info)}

/* error */
.error-host{max-width:2400px;margin:0 auto;padding:0 var(--pad)}
.error-box{margin-top:14px;padding:12px 16px;border:1px solid #E5B7B1;background:var(--err-bg);border-radius:var(--r);display:flex;gap:16px;align-items:flex-start;color:#6E1F18}
.error-box .msg{flex:1;font-weight:600}
.error-box details{margin-top:6px;font-weight:400;font-size:.85rem;color:#7a3a33}
.error-box pre{white-space:pre-wrap;word-break:break-word;margin:6px 0 0;font-family:var(--f-mono);font-size:.8rem}
.toast-host{position:fixed;right:20px;bottom:20px;display:flex;flex-direction:column;gap:8px;z-index:90}
.toast{background:var(--ink);color:#fff;padding:10px 16px;border-radius:var(--r);box-shadow:var(--shadow);font-size:.9rem;animation:fade .2s}
.toast .toast-act{margin-left:12px;padding:0 4px;font:inherit;font-weight:600;color:var(--bronze-l,#d9b27c);background:none;border:0;cursor:pointer}
@keyframes fade{from{opacity:0;transform:translateY(6px)}}

/* dialog */
.dlg{border:1px solid var(--line-2);border-radius:var(--r-lg);padding:24px;max-width:460px;box-shadow:0 20px 60px rgba(20,22,26,.3);background:var(--surface);color:var(--ink)}
.dlg::backdrop{background:rgba(20,22,26,.45)}
.dlg h2{margin-bottom:8px} .dlg p{color:var(--ink-2)}
.dlg-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}

/* forms */
.field{display:flex;flex-direction:column;gap:4px;min-width:0}
.field>label,.lbl{font-size:.78rem;font-weight:600;color:var(--ink-2);letter-spacing:.01em}
.inp,select.sel{height:34px;width:100%;padding:0 10px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--surface);min-width:0}
.inp:focus-visible,select.sel:focus-visible{outline:2px solid var(--bronze);outline-offset:-1px;border-color:var(--bronze)}
select.sel{padding-right:6px}
.inp.num{font-family:var(--f-mono);text-align:right}
.check{display:inline-flex;align-items:center;gap:8px;cursor:pointer}
.check input{width:16px;height:16px;accent-color:var(--bronze)}

/* step 1 */
.import-grid{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,2fr);gap:var(--gap);align-items:start}
.drop{border:2px dashed var(--line-2);border-radius:var(--r-lg);background:var(--surface);padding:44px 24px;text-align:center;transition:border-color .15s,background .15s}
.drop.over{border-color:var(--bronze);background:var(--bronze-bg)}
.drop h2{font-size:1.4rem;margin-bottom:6px}
.drop .formats{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;margin:12px 0 18px}
.drop p+.btn{margin-top:16px}
.drop .formats .tag{font-family:var(--f-mono)}
.section-title{display:flex;align-items:baseline;justify-content:space-between;margin:28px 0 10px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:var(--gap)}
.card{display:flex;flex-direction:column;gap:6px;text-align:left;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);cursor:pointer;transition:border-color .12s,box-shadow .12s;min-height:96px}
.card .t{font-weight:600}
.card .d{color:var(--ink-2);font-size:.86rem}
.card .meta{margin-top:auto;display:flex;gap:6px;flex-wrap:wrap}
.card.manual{border-style:dashed}
.report{margin-top:var(--gap)}
.report h3{margin-bottom:8px}
.report ul{margin:0;padding-left:18px;color:var(--ink-2)}
.report li{margin:2px 0}
.report .warns li{color:var(--warn)}
.kv{display:grid;grid-template-columns:max-content 1fr;gap:4px 16px;font-size:.9rem}
.kv dt{color:var(--ink-3)} .kv dd{margin:0}

/* step 2 */
.summary-bar{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;margin-bottom:var(--gap)}
.summary-bar .cell{background:var(--surface);padding:12px 16px}
.summary-bar .k{font-size:.74rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3)}
.summary-bar .v{font-family:var(--f-mono);font-size:1.25rem;margin-top:2px}
.summary-bar .v small{font-size:.75rem;color:var(--ink-3)}
.summary-bar .cell.bad .v{color:var(--err)}
.supply{display:grid;grid-template-columns:4fr 5fr;gap:12px 32px;margin-bottom:var(--gap)}
.supply-fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(112px,1fr));gap:10px 12px}
.supply .grp-title{font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;color:var(--bronze-d);font-weight:600;margin-bottom:8px}
.lt-tools{display:flex;gap:8px;align-items:center;margin:0 0 10px;flex-wrap:wrap}
.lt-tools .grow{flex:1}
.lt-wrap{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);overflow:hidden;box-shadow:var(--shadow)}
.lt-scroll{overflow:auto;position:relative;contain:strict;height:max(340px,calc(100vh - 330px))}
.lt-head,.lt-row{display:grid;grid-template-columns:var(--cols);align-items:center;min-width:var(--total)}
.lt-head{position:sticky;top:0;z-index:5;background:var(--surface-2);border-bottom:1px solid var(--line-2);height:38px;font-size:.74rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-2)}
.lt-head>div{padding:0 6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lt-body{position:relative;min-width:var(--total)}
.lt-row{position:absolute;left:0;right:0;height:var(--row-h);border-bottom:1px solid var(--line);background:var(--surface)}
.lt-row:nth-child(even){background:#FCFBF8}
.lt-row:focus-within{background:var(--bronze-bg)}
.lt-row>div{padding:0 3px;min-width:0;height:100%;display:flex;align-items:center}
.lt-row .c-idx,.lt-head .c-idx{justify-content:center;color:var(--ink-3);font-family:var(--f-mono);font-size:.78rem}
.lt-sticky{position:sticky;z-index:3;background:inherit}
.lt-head .lt-sticky{background:var(--surface-2);z-index:6}
.lt-cell{width:100%;height:28px;padding:0 6px;border:1px solid transparent;border-radius:4px;background:transparent;font-size:.86rem;min-width:0}
.lt-cell:focus{outline:none;border-color:var(--bronze);background:#fff;box-shadow:0 0 0 2px rgba(168,135,90,.25)}
.lt-cell.num{text-align:right;font-family:var(--f-mono)}
.lt-cell.mono{font-family:var(--f-mono)}
select.lt-cell{padding:0 2px;cursor:pointer}
.lt-cell.inherited{color:var(--ink-3);font-style:italic;background:rgba(20,22,26,.035);cursor:not-allowed;opacity:1;-webkit-text-fill-color:currentColor}
.lt-cell.invalid{border-color:var(--err);background:var(--err-bg)}
.lt-cell.warnc{border-color:#D9B45A;background:var(--warn-bg)}
.c-chk{justify-content:center}
.c-act{gap:0;justify-content:flex-end}
.lt-foot{display:flex;justify-content:space-between;padding:8px 14px;border-top:1px solid var(--line);font-size:.82rem;color:var(--ink-3);background:var(--surface-2)}
.row-issues{margin-top:10px;font-size:.84rem;color:var(--err)}

/* step 3 */
.wiz{display:grid;grid-template-columns:230px minmax(0,1fr) 320px;gap:var(--gap);align-items:start}
.wiz-nav{position:sticky;top:76px;display:flex;flex-direction:column;gap:4px}
.wiz-nav button{display:flex;justify-content:space-between;gap:8px;align-items:center;text-align:left;padding:10px 14px;border:1px solid transparent;background:transparent;border-radius:var(--r);cursor:pointer;color:var(--ink-2)}
.wiz-nav button.active{background:var(--surface);border-color:var(--line);color:var(--ink);font-weight:600;box-shadow:var(--shadow)}
.wiz-nav .cnt{font-family:var(--f-mono);font-size:.72rem;color:var(--ink-3)}
.q{padding:20px 24px;border-bottom:1px solid var(--line)}
.q:last-child{border-bottom:0}
.q-head{display:flex;gap:10px;justify-content:space-between;align-items:baseline;margin-bottom:4px}
.q-text{font-weight:600;font-size:1.02rem}
.q-help{color:var(--ink-2);font-size:.88rem;margin-bottom:12px;max-width:80ch}
.opts{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.opt{position:relative;display:flex;flex-direction:column;gap:4px;text-align:left;padding:12px 14px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--surface);cursor:pointer;min-height:64px}
.opt.sel{border-color:var(--bronze);background:var(--bronze-bg);box-shadow:inset 0 0 0 1px var(--bronze)}
.opt:disabled{cursor:not-allowed;background:var(--surface-2);color:var(--ink-3)}
.opt .ol{font-weight:600;display:flex;gap:8px;align-items:center;justify-content:space-between}
.opt .oh{font-size:.82rem;color:var(--ink-2)}
.opt .oi{font-size:.74rem;color:var(--bronze-d);font-family:var(--f-mono)}
.opt .od{font-size:.78rem;color:var(--err)}
.opt .dot{width:14px;height:14px;border-radius:50%;border:1.5px solid var(--line-2);flex:none}
.opt.sel .dot{border-color:var(--bronze);background:radial-gradient(circle,var(--bronze) 0 40%,transparent 45%)}
.q-inline{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}
.q-inline .field{width:120px}
.q-note{margin-top:8px;font-size:.88rem;line-height:1.4;color:var(--warn);overflow-wrap:anywhere}
.q-note.err{color:var(--err);font-weight:600}
.q-note[hidden]{display:none}
.q-reset{border:0;background:transparent;color:var(--ink-3);cursor:pointer;font-size:.78rem;text-decoration:underline}
.wiz-side{position:sticky;top:76px;max-height:calc(100vh - 100px);overflow:auto;padding:16px 18px}
.wiz-side h3{margin-bottom:8px}
.ans-sec{margin-top:14px;font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--bronze-d);font-weight:600}
.ans{display:flex;justify-content:space-between;gap:10px;width:100%;text-align:left;border:0;background:transparent;padding:5px 6px;border-radius:4px;cursor:pointer;font-size:.84rem}
.ans .al{color:var(--ink-3)} .ans .av{text-align:right;font-weight:600}
.ans .av.def{font-weight:400;color:var(--ink-2)}
.wiz-loading{opacity:.6;pointer-events:none}

/* step 4 */
.res-head{display:grid;grid-template-columns:auto 1fr auto;gap:var(--gap);align-items:center;padding:16px 20px;margin-bottom:var(--gap)}
.banner{display:flex;gap:12px;align-items:center;padding:8px 16px;border-radius:var(--r);font-weight:600}
.banner.ok{background:var(--ok-bg);color:var(--ok)} .banner.warn{background:var(--warn-bg);color:var(--warn)} .banner.error{background:var(--err-bg);color:var(--err)}
.banner .big{font-family:var(--f-head);font-size:1.5rem}
.res-status{display:flex;flex-direction:column;gap:8px}
.vcounts{display:flex;gap:6px;flex-wrap:wrap}
.vc{display:inline-flex;gap:6px;align-items:baseline;padding:3px 10px;border-radius:999px;font-size:.8rem;background:var(--surface-2,#F1EEE8);color:var(--ink-2)}
.vc b{font-family:var(--f-mono);font-size:.9rem}
.vc.err{background:var(--err-bg);color:var(--err)} .vc.warn{background:var(--warn-bg);color:var(--warn)} .vc.hold{background:var(--hold-bg);color:var(--hold)} .vc.info{background:var(--info-bg);color:var(--info)}
.vc.zero{opacity:.55}
.vhint{margin:-2px 0 8px}
.stats{display:flex;gap:28px;flex-wrap:wrap}
.stat .k{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3)}
.stat .v{font-family:var(--f-mono);font-size:1rem}
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line-2);margin-bottom:var(--gap);overflow-x:auto}
.tab{padding:10px 18px;border:0;border-bottom:2px solid transparent;background:transparent;cursor:pointer;color:var(--ink-2);font-weight:600;white-space:nowrap;display:flex;gap:8px;align-items:center}
.tab[aria-selected=true]{color:var(--ink);border-bottom-color:var(--bronze)}
.tab .badge{font-family:var(--f-mono);font-size:.7rem;background:var(--surface-2);padding:1px 6px;border-radius:9px;color:var(--ink-2)}
.tab .badge.err{background:var(--err-bg);color:var(--err)} .tab .badge.warn{background:var(--warn-bg);color:var(--warn)}
.stale{opacity:.55;transition:opacity .15s}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.toolbar .grow{flex:1}
.toolbar .field{width:190px}
.seg{display:inline-flex;border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden;background:var(--surface)}
.seg button{border:0;background:transparent;padding:0 12px;height:32px;cursor:pointer;font-size:.84rem;font-weight:600;color:var(--ink-2)}
.seg button+button{border-left:1px solid var(--line)}
.viewer-wrap{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:var(--gap);align-items:start}
.viewer{position:relative;height:calc(100vh - 340px);min-height:420px;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);cursor:grab;touch-action:pan-y;background-image:radial-gradient(var(--line) 1px,transparent 1px);background-size:20px 20px}
.viewer.drag{cursor:grabbing}
.viewer-hint{margin:8px 2px 0;max-width:80ch}
.seg button.zoom-in,.seg button.zoom-out{width:34px;padding:0;font-size:1.05rem;line-height:1}
.split-note{display:flex;gap:12px;align-items:center;flex-wrap:wrap;padding:6px 12px;border-radius:var(--r);background:var(--info-bg);color:var(--ink);font-size:.86rem}
.viewer .stage{position:absolute;left:0;top:0;transform-origin:0 0;will-change:transform}
.viewer .stage svg{display:block;max-width:none}
.viewer .zoom-ind{position:absolute;left:10px;bottom:10px;background:rgba(20,22,26,.8);color:#fff;font-family:var(--f-mono);font-size:.74rem;padding:3px 8px;border-radius:4px;pointer-events:none}
.viewer .vloading{position:absolute;inset:0;display:grid;place-items:center;background:rgba(250,248,244,.7);z-index:2;font-weight:600;color:var(--ink-2)}
.layers{width:190px;padding:14px 16px;position:sticky;top:76px}
.layers h3{margin-bottom:8px}
.layers .check{display:flex;margin:5px 0;font-size:.86rem}
.layers hr{border:0;border-top:1px solid var(--line);margin:10px 0}
.empty{padding:40px;text-align:center;color:var(--ink-3)}

table.dt{border-collapse:separate;border-spacing:0;width:100%;font-size:.86rem}
.tbl-scroll{overflow:auto;max-height:calc(100vh - 330px);border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface)}
table.dt th{position:sticky;top:0;z-index:2;background:var(--surface-2);text-align:left;padding:9px 12px;font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-2);border-bottom:1px solid var(--line-2);white-space:nowrap}
table.dt td{padding:7px 12px;border-bottom:1px solid var(--line);vertical-align:top}
table.dt td.n,table.dt th.n{text-align:right;font-family:var(--f-mono)}
table.dt td.m{font-family:var(--f-mono);font-size:.82rem}
table.dt tr.hl td{background:var(--bronze-bg);box-shadow:inset 0 0 0 0 transparent}
table.dt tr.hl td:first-child{box-shadow:inset 3px 0 0 var(--bronze)}
table.dt tr.sec td{background:var(--surface-2);font-weight:600;position:sticky;top:34px;z-index:1}
table.dt tr.sec td .tot{float:right;font-family:var(--f-mono);font-weight:400;color:var(--ink-2)}
.swatch{display:inline-block;width:12px;height:12px;border-radius:3px;border:1px solid rgba(0,0,0,.25);vertical-align:-2px;margin-right:6px}
.clarify{color:var(--warn);font-style:italic}
.hlbar{display:flex;gap:10px;align-items:center;padding:8px 14px;margin-bottom:10px;background:var(--bronze-bg);border:1px solid var(--bronze);border-radius:var(--r);font-size:.86rem}
.hlbar .grow{flex:1}
.subtabs{margin-bottom:10px}

.vgroup{margin-bottom:var(--gap)}
.vgroup h3{display:flex;gap:10px;align-items:center;margin-bottom:8px}
.vitem{display:block;width:100%;text-align:left;border:1px solid var(--line);border-left-width:4px;background:var(--surface);border-radius:var(--r);padding:0;margin-bottom:8px}
.vitem .vbody{display:block;width:100%;text-align:left;background:none;border:0;border-radius:var(--r);padding:12px 16px;cursor:pointer;font:inherit;color:inherit}
.vitem .vactions{display:flex;gap:8px;flex-wrap:wrap;padding:0 16px 12px}
.quickfix{margin-bottom:var(--gap);border-left:4px solid var(--err)}
.quickfix .vactions{display:flex;padding:8px 0 0 0}
.applied{margin-bottom:var(--gap);border-left:4px solid var(--bronze)}
.applied .top{display:flex;gap:6px;align-items:center}
.applied-list{margin:6px 0 0 18px;padding:0}
.vitem.sel{outline:2px solid var(--bronze)}
.vitem.error{border-left-color:var(--err)} .vitem.warn{border-left-color:#D9A53A} .vitem.hold{border-left-color:var(--hold)} .vitem.info{border-left-color:var(--ink-3)}
.vitem .top{display:flex;gap:10px;align-items:baseline}
.vitem .code{font-family:var(--f-mono);font-size:.78rem;color:var(--ink-3)}
.vitem .title{font-weight:600}
.vitem .detail{margin-top:4px;color:var(--ink-2);font-size:.9rem}
.vitem .fix{margin-top:6px;font-size:.88rem}
.vitem .fix b{color:var(--bronze-d)}
.vitem .refs{margin-top:6px;display:flex;gap:6px;flex-wrap:wrap}

.enc-grid{display:grid;gap:12px}
.enc{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px;padding:16px 20px;align-items:center}
.enc.sel{border-color:var(--bronze);box-shadow:inset 0 0 0 1px var(--bronze),var(--shadow)}
.enc.nofit{opacity:.75;background:var(--surface-2)}
.enc .nm{font-weight:600;font-size:1rem}
.enc .specs{display:flex;gap:22px;flex-wrap:wrap;margin-top:8px}
.enc .reasons{margin:8px 0 0;padding-left:18px;color:var(--ink-2);font-size:.86rem}

.docs{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:var(--gap)}
.doc{padding:20px;display:flex;flex-direction:column;gap:10px}
.doc .ext{font-family:var(--f-mono);font-size:1.5rem;color:var(--bronze-d)}
.doc p{color:var(--ink-2);font-size:.88rem;flex:1}

.build-loading{display:grid;place-items:center;padding:100px 0;color:var(--ink-2);gap:14px}
.spinner{width:34px;height:34px;border:3px solid var(--line-2);border-top-color:var(--bronze);border-radius:50%;animation:spin .8s linear infinite}

/* hover only on devices that have it, so a tapped control does not stay highlighted (D102) */
@media (hover:hover){
  .step:hover:not(:disabled){background:rgba(255,255,255,.07);color:#fff}
  .btn:hover:not(:disabled){border-color:var(--bronze);background:var(--bronze-bg)}
  .btn-primary:hover:not(:disabled){background:#2a2e35;border-color:#2a2e35}
  .btn-accent:hover:not(:disabled){background:var(--bronze-d);border-color:var(--bronze-d)}
  .topbar .btn-ghost:hover:not(:disabled){background:rgba(255,255,255,.1);border-color:var(--bronze-l)}
  .inp:hover:not(:focus-visible),select.sel:hover:not(:focus-visible){border-color:var(--ink-3)}
  .card:hover:not(:disabled){border-color:var(--bronze);box-shadow:var(--shadow)}
  .lt-row:hover{background:var(--bronze-bg)}
  .lt-cell:hover:not(:focus):not(.invalid):not(.warnc){border-color:var(--line-2)}
  .wiz-nav button:hover{background:var(--surface-2)}
  .opt:hover:not(:disabled):not(.sel){border-color:var(--bronze)}
  .ans:hover{background:var(--surface-2)}
  .tab:hover{color:var(--ink)}
  .seg button:hover{background:var(--bronze-bg)}
  table.dt tr:hover:not(.hl):not(.sec) td{background:#FCFAF5}
  .vitem:hover{box-shadow:var(--shadow)}
}

/* narrow desktop */
@media (max-width:1280px){
  .wiz{grid-template-columns:200px minmax(0,1fr)}
  .wiz-side{grid-column:1/-1;position:static;max-height:none}
  .import-grid{grid-template-columns:1fr}
  .topbar-inner{gap:16px}
  .step{padding:8px 10px}
}

/* ===================================================================== mobile (wave 5M)
   compact: 721 to 1000 px, phone: 720 px and narrower, short: a phone in landscape (D100).
   Desktop (1001 px and wider) is not touched by anything below. */
@media (max-width:1000px){
  :root{--pad:20px}
  .topbar-inner{gap:12px;padding-left:max(var(--pad),env(safe-area-inset-left));padding-right:max(var(--pad),env(safe-area-inset-right))}
  .brand-mark{font-size:1.25rem}
  .save-state{display:none}
  .stepper{justify-content:stretch}
  .step{flex:1;justify-content:center;gap:6px;padding:8px 6px;font-size:.85rem;min-width:0}
  .step .n{width:22px;height:22px;flex:none}
  .view,.error-host{padding-left:max(var(--pad),env(safe-area-inset-left));padding-right:max(var(--pad),env(safe-area-inset-right))}
  .page-head{margin-bottom:16px}
  .res-head{grid-template-columns:minmax(0,1fr)}
  .supply{grid-template-columns:minmax(0,1fr)}
  .wiz{grid-template-columns:minmax(0,1fr)}
  .wiz-side{grid-column:auto}
  .wiz-nav{position:static;flex-direction:row;gap:8px;overflow-x:auto;padding:2px 0}
  .wiz-nav button{flex:none;justify-content:flex-start;align-items:center;gap:6px;min-height:44px;padding:0 16px;border:1px solid var(--line-2);border-radius:22px;background:var(--surface);white-space:nowrap}
  .wiz-nav button.active{border-color:var(--bronze);background:var(--bronze-bg);box-shadow:inset 0 0 0 1px var(--bronze)}
  .wiz-nav .cnt{font-size:.78rem}
  .wiz-nav .cnt::before{content:"\00b7\00a0"}
  .viewer-wrap{grid-template-columns:minmax(0,1fr)}
  .layers{width:auto;position:static}
  .viewer{height:calc(100vh - 340px);height:calc(100dvh - 340px)}
  .tabs{scrollbar-width:none}
  .tabs::-webkit-scrollbar,.wiz-nav::-webkit-scrollbar,.seg::-webkit-scrollbar{display:none}
  .tab{flex:none}
  .tbl-scroll{max-height:max(360px,calc(100vh - 330px))}
  .toolbar .field{min-width:0}
  .enc{grid-template-columns:minmax(0,1fr)}
  .vitem,.enc .nm,.card .t,.card .d{overflow-wrap:anywhere}
  [data-strip]{-webkit-mask-image:linear-gradient(to right,transparent 0,#000 var(--fl,0px),#000 calc(100% - var(--fr,0px)),transparent 100%);mask-image:linear-gradient(to right,transparent 0,#000 var(--fl,0px),#000 calc(100% - var(--fr,0px)),transparent 100%)}
}
/* D106, D113: overlays and the line editor (a full screen sheet), compact and phone */
@media (max-width:1000px){
  html.locked{overflow:hidden}
  .sheet{position:fixed;inset:0;width:100%;max-width:none;height:100vh;height:100dvh;max-height:none;margin:0;padding:0;border:0;border-radius:0;background:var(--bg);color:var(--ink);overscroll-behavior:contain}
  .sheet::backdrop{background:var(--bg)}
  .sheet[open]{display:flex;flex-direction:column;animation:sheetup .18s ease-out}
  @keyframes sheetup{from{opacity:0;transform:translateY(24px)}}
  .le-head{flex:none;display:flex;align-items:center;gap:12px;background:var(--ink);color:#EDE8DE;padding:calc(10px + env(safe-area-inset-top,0px)) max(var(--pad),env(safe-area-inset-right)) 10px max(var(--pad),env(safe-area-inset-left))}
  .le-titles{flex:1;min-width:0}
  .le-title{font-size:1.1rem;font-weight:600;line-height:1.25}
  .le-sub{margin-top:2px;font-size:.88rem;line-height:1.3;color:#B9BEC6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}
  .le-done{flex:none;min-width:88px;background:var(--bronze);border-color:var(--bronze);color:#fff}
  .le-body{flex:1;min-height:0;scroll-padding:12px 0;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:18px max(var(--pad),env(safe-area-inset-right)) 28px max(var(--pad),env(safe-area-inset-left))}
  .le-grp{margin-bottom:26px}
  .le-grp:last-child{margin-bottom:0}
  .le-gt{margin-bottom:12px;padding-bottom:6px;border-bottom:1px solid var(--line);font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--bronze-d)}
  .le-row{display:grid;gap:12px;margin-bottom:14px;align-items:start}
  .le-row.n2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .le-note{font-size:.88rem;line-height:1.35;color:var(--ink-2)}
  .le-note.inh{margin:-4px 0 12px;padding:8px 12px;background:var(--surface-2);border-radius:var(--r)}
  .le-f .le-note{margin-top:2px}
  .le-msg{margin-top:2px;font-size:.85rem;line-height:1.35;font-weight:600}
  .le-msg.err{color:var(--err)}
  .le-msg.warn{color:var(--warn)}
  .sheet .inp,.sheet select.sel{height:46px;font-size:16px;padding:0 12px}
  .sheet .inp.invalid,.sheet select.sel.invalid{border-color:var(--err);background:var(--err-bg)}
  .sheet .inp.warnc,.sheet select.sel.warnc{border-color:#D9B45A;background:var(--warn-bg)}
  .sheet .inherited{color:var(--ink-3);background:rgba(20,22,26,.04);opacity:1;-webkit-text-fill-color:currentColor}
  .field>label.le-switch{position:relative;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:52px;padding:0 14px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--surface);font-size:1rem;font-weight:400;letter-spacing:0;color:var(--ink);cursor:pointer}
  .le-switch input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer}
  .le-switch .sw{flex:none;position:relative;width:48px;height:28px;border-radius:14px;background:var(--line-2);transition:background .15s}
  .le-switch .sw::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(20,22,26,.3);transition:transform .15s}
  .le-switch input:checked~.sw{background:var(--bronze)}
  .le-switch input:checked~.sw::after{transform:translateX(20px)}
  .le-switch:has(input:focus-visible){outline:2px solid var(--bronze);outline-offset:2px}
  .le-foot{flex:none;display:grid;grid-template-columns:minmax(0,1fr);gap:6px;padding:10px max(var(--pad),env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom,0px)) max(var(--pad),env(safe-area-inset-left));background:var(--surface);border-top:1px solid var(--line);box-shadow:0 -4px 14px rgba(20,22,26,.08)}
  .le-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .le-acts{display:grid;grid-template-columns:auto auto auto auto;justify-content:space-between;gap:8px;min-width:0}
  .le-acts .btn{height:44px;min-width:48px;padding:0 6px;font-size:.84rem;border-color:transparent}
  .le-acts .btn.danger{color:var(--err);border-color:var(--err);margin-left:6px}
  html.kbd .le-foot{display:none}
  .summary-bar{gap:0;background:var(--surface)}
  .summary-bar .cell{margin:0 -1px -1px 0;border:1px solid var(--line)}
  .lt-foot{flex-wrap:wrap;gap:4px 16px}
  .lt-foot .lt-reason{flex:1 1 100%;min-height:1.4em;color:var(--err);font-weight:600}
}
@media (max-width:1000px) and (prefers-reduced-motion:reduce){
  .sheet[open]{animation:none}
  .le-switch .sw,.le-switch .sw::after{transition:none}
}
/* D113: on a touch screen in compact mode the table rows are 44 px and the cells can be pressed */
@media (min-width:721px) and (max-width:1000px) and (pointer:coarse){
  :root{--row-h:44px}
  .lt-row{border-bottom:0}
  .lt-row>div{box-shadow:inset 0 -1px 0 var(--line)}
  .lt-cell{height:44px;font-size:16px}
  .supply .inp,.supply select.sel{height:44px;font-size:16px}
  .lt-tools .btn,.lt-tools .btn-sm{height:44px}
  .lt-row .btn-icon{width:44px;height:44px}
  .chk-hit{display:grid;place-items:center;width:44px;height:44px;cursor:pointer}
  .chk-hit input{width:22px!important;height:22px!important}
}
/* D117: the full screen drawing, a dialog like the line editor (the same overlay mechanics, D106) */
@media (max-width:1000px){
  .vfull{position:fixed;inset:0;width:100%;max-width:none;height:100vh;height:100dvh;max-height:none;margin:0;padding:0;border:0;border-radius:0;background:#fff;color:var(--ink);overflow:hidden;touch-action:none;overscroll-behavior:contain;-webkit-user-select:none;user-select:none}
  .vfull::backdrop{background:#fff}
  .vfull[open]{display:block;animation:sheetup .18s ease-out}
  .vfull .viewer{position:absolute;inset:0;height:auto;min-height:0;border:0;border-radius:0;touch-action:none;cursor:default;background-color:#fff}
  .vfull .viewer .stage{will-change:auto} /* promoted only while a finger is down, so the drawing is sharp when the gesture ends */
  .vfull .viewer.gest .stage{will-change:transform}
  .vfull .viewer .zoom-ind{left:max(12px,env(safe-area-inset-left));bottom:calc(12px + env(safe-area-inset-bottom,0px));height:44px;display:flex;align-items:center;padding:0 14px;border-radius:var(--r);font-size:.9rem;background:rgba(20,22,26,.78)}
  .vf-top,.vf-bot{position:absolute;z-index:3;display:flex;gap:8px;pointer-events:none}
  .vf-top{top:calc(10px + env(safe-area-inset-top,0px));left:max(12px,env(safe-area-inset-left));right:max(12px,env(safe-area-inset-right));justify-content:space-between}
  .vf-bot{right:max(12px,env(safe-area-inset-right));bottom:calc(12px + env(safe-area-inset-bottom,0px))}
  .vf-btn{pointer-events:auto;min-width:44px;height:44px;padding:0 16px;border:1px solid rgba(255,255,255,.2);border-radius:var(--r);background:rgba(20,22,26,.78);color:#fff;font-weight:600;font-size:.95rem;cursor:pointer;touch-action:manipulation}
  .vf-btn:active{background:rgba(20,22,26,.96)}
  .vf-zoom-in,.vf-zoom-out{padding:0;width:44px;font-size:1.3rem;line-height:1}
  .vf-lbtn[aria-expanded=true]{border-color:var(--bronze-l);background:rgba(138,108,66,.9)}
  .vf-lay{position:absolute;z-index:4;top:calc(64px + env(safe-area-inset-top,0px));right:max(12px,env(safe-area-inset-right));width:min(340px,calc(100% - 24px));max-height:calc(100vh - 150px - env(safe-area-inset-top,0px));max-height:calc(100dvh - 150px - env(safe-area-inset-top,0px));overflow:auto;overscroll-behavior:contain;padding:12px 14px;background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-lg);box-shadow:0 8px 30px rgba(20,22,26,.28);touch-action:pan-y;-webkit-user-select:auto;user-select:auto}
  .vf-lay .layer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 10px}
  .vf-lay .check{min-height:44px;gap:10px;font-size:.9rem;min-width:0}
  .vf-lay .check input{width:22px;height:22px;flex:none;accent-color:var(--bronze)}
  .vf-lay .layer-acts{display:flex;gap:10px;margin-top:8px;padding-top:10px;border-top:1px solid var(--line)}
  .vf-lay .layer-acts .btn{flex:1;height:44px}
}
@media (max-width:1000px) and (prefers-reduced-motion:reduce){
  .vfull[open],.bsheet[open]{animation:none}
}
/* D118, D119: the specification and the journals are cards below 1001 px, so that nothing scrolls sideways (compact and phone) */
@media (max-width:1000px){
  /* tables as cards (D118, D119): the same table, drawn as a list of cards; nothing scrolls sideways */
  .tbl-scroll{max-height:none}
  .tbl-scroll.tcards{overflow:visible;border:0;border-radius:0;background:transparent}
  table.dt.bom,table.dt.jr{display:block;font-size:.9rem}
  table.dt.bom thead,table.dt.jr thead{display:none}
  table.dt.bom tbody,table.dt.jr tbody{display:block}
  table.dt.bom td,table.dt.jr td{padding:0;border:0}
  table.dt.bom td:empty:not(.brk),table.dt.jr td:empty{display:none}
  /* specification card: number, name and quantity, brand and model, article and status, designations, price */
  table.dt.bom tr.bi{display:flex;flex-wrap:wrap;align-items:baseline;column-gap:8px;margin:0 0 8px;padding:12px 14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow)}
  table.dt.bom tr.bi.hl{background:var(--bronze-bg);border-color:var(--bronze);box-shadow:inset 4px 0 0 var(--bronze)}
  table.dt.bom tr.bi.hl td{background:transparent;box-shadow:none}
  table.dt.bom td.c-pos{flex:none;min-width:1.6em;font-size:.82rem;color:var(--ink-3);text-align:left}
  table.dt.bom td.c-name{flex:1 1 0;min-width:0;font-weight:600;line-height:1.35;overflow-wrap:anywhere}
  table.dt.bom td.c-qty{flex:none;margin-left:4px;font-weight:600;text-align:right}
  table.dt.bom td.c-unit{flex:none;margin-left:-4px;font-family:var(--f-mono);font-size:.82rem;color:var(--ink-2)}
  table.dt.bom td.brk{display:block;flex:0 0 100%;height:0;padding:0}
  table.dt.bom td.c-brand{flex:none;margin-top:3px;color:var(--ink-2);overflow-wrap:anywhere}
  table.dt.bom td.c-model{flex:1 1 0;min-width:0;margin-top:3px;color:var(--ink-2);overflow-wrap:anywhere}
  table.dt.bom td.c-art{flex:1 1 0;min-width:0;margin-top:5px;font-size:.82rem;overflow-wrap:anywhere}
  table.dt.bom td.c-art::before{content:"Арт. ";font-family:var(--f-text);color:var(--ink-3)}
  table.dt.bom td.c-art.none{font-family:var(--f-text);font-size:.88rem}
  table.dt.bom td.c-art.none::before{content:none}
  table.dt.bom td.c-status{flex:none;margin-top:5px}
  table.dt.bom td.c-refs{flex:0 0 100%;min-width:0;margin-top:5px;font-size:.82rem;color:var(--ink-3);overflow-wrap:anywhere}
  table.dt.bom td.c-price{flex:none;margin-top:5px;font-size:.86rem;color:var(--ink-2);text-align:left}
  table.dt.bom td.c-sum{flex:none;margin-top:5px;font-size:.86rem;font-weight:600;text-align:left}
  /* section rows stay under the stepper */
  table.dt.bom tr.sec,table.dt.jr tr.sec{display:block;z-index:3;margin:0 calc(-1 * var(--pad)) 8px;padding:0 var(--pad);background:var(--surface-2);border-bottom:1px solid var(--line-2)}
  table.dt.bom tr.sec td{display:flex;align-items:baseline;justify-content:space-between;gap:12px;position:static;padding:9px 0;background:transparent}
  table.dt.bom tr.sec td .tot{float:none;flex:none;font-size:.82rem}
  /* journal card: the first column is the title, the others are label and value pairs in two columns */
  table.dt.jr tr.jc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 14px;margin:0 0 8px;padding:12px 14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow)}
  table.dt.jr tr.jc.hl{background:var(--bronze-bg);border-color:var(--bronze);box-shadow:inset 4px 0 0 var(--bronze)}
  table.dt.jr tr.jc.hl td{background:transparent;box-shadow:none}
  table.dt.jr td{display:block;min-width:0;font-size:.88rem;line-height:1.35;text-align:left;overflow-wrap:anywhere}
  table.dt.jr td::before{content:attr(data-th);display:block;margin-bottom:1px;font-family:var(--f-text);font-size:.78rem;font-weight:400;line-height:1.3;color:var(--ink-3)}
  table.dt.jr td.wide{grid-column:1/-1}
  table.dt.jr td:first-child{grid-column:1/-1;font-family:var(--f-mono);font-size:.95rem;font-weight:600}
  table.dt.jr td:first-child::before{content:none}
  table.dt.jr td:first-child:not(.m)::first-letter{text-transform:uppercase}
  table.dt.jr td:first-child[data-pre]::before{content:attr(data-pre);display:inline;margin:0;font-family:inherit;font-size:inherit;font-weight:inherit;color:var(--ink-3)}
  table.dt.bom tr.bi:hover:not(.hl) td,table.dt.jr tr.jc:hover:not(.hl) td{background:transparent}
  .more-btn{width:100%}
  table.dt.jr td .swatch{width:14px;height:14px;vertical-align:-2px;flex:none}
  /* S4-05: the short list of enclosures and its group "Не подходят" also serve a tablet and a phone in landscape */
  .enc-toggle{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;min-height:44px;margin:4px 0;padding:0 14px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--surface);font-weight:600;font-size:.95rem;text-align:left;cursor:pointer;color:var(--ink)}
  .enc-toggle[aria-expanded=true]{border-color:var(--bronze);background:var(--bronze-bg)}
  .enc-toggle .chev{flex:none;display:inline-flex;transition:transform .18s}
  .enc-toggle[aria-expanded=true] .chev{transform:rotate(180deg)}
  .enc-grid>.enc-grid{margin-top:0}
}
/* D122: the file made on a touch screen (compact and phone) */
@media (max-width:1000px){
  .doc-ready{display:flex;flex-direction:column;gap:10px;padding:12px;border:1px solid var(--bronze);border-radius:var(--r);background:var(--bronze-bg)}
  .doc-name{font-size:.92rem;line-height:1.35;overflow-wrap:anywhere}
  .doc-acts{display:flex;flex-wrap:wrap;gap:8px}
  .doc-acts .btn{flex:1 1 140px}
  .doc .btn,.doc-acts .btn{min-height:44px}
  a.btn{text-decoration:none;color:var(--ink)}
  a.btn.btn-primary{color:#fff}
}
@media (max-width:900px){
  .brand-sub{display:none}
}
@media (max-width:1000px) and (max-height:500px){
  .topbar{position:static}
  .view{padding-top:16px}
}

@media (max-width:720px){
  :root{--pad:16px;--gap:12px;--row1:52px;--brand-row:calc(var(--row1) + env(safe-area-inset-top,0px));--step-h:56px;--bar-h:62px}
  html{font-size:16px;scroll-padding-top:calc(var(--step-h) + 8px);scroll-padding-bottom:calc(var(--bar-h) + 12px)}
  *{-webkit-tap-highlight-color:transparent}
  button,select,input,label,.btn,.step,.tab,.opt,.card,.ans{touch-action:manipulation}
  h1{font-size:1.75rem}
  h2{font-size:1.35rem}
  .view{padding:16px var(--pad) 32px}
  .view:has(>.footer-nav){padding-bottom:0}
  .error-host{padding:0 var(--pad)}
  .page-head{display:block;margin-bottom:14px}
  .page-head .actions:empty{display:none!important}
  .panel-pad{padding:16px}
  .section-title{margin:24px 0 10px;flex-wrap:wrap;gap:2px 12px}
  .progress{top:env(safe-area-inset-top,0px)}

  /* small text up to 12 px and more (I5) */
  .tag,.summary-bar .k,.supply .grp-title,.lt-head,.stat .k,.ans-sec,.opt .oi,.tab .badge,table.dt th,.lt-row .c-idx,.lt-head .c-idx,.step .n{font-size:.78rem}
  .tag{height:24px;padding:0 10px;border-radius:12px}
  .refs .tag,.vgroup .tag{height:auto;min-height:24px;padding:3px 10px;white-space:normal;line-height:1.3}
  .vgroup h3 .tag{min-width:24px;justify-content:center}

  /* top bar and stepper (D107) */
  .topbar{position:sticky;top:calc(-1 * var(--brand-row))}
  .topbar-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-rows:var(--row1) var(--step-h);grid-template-areas:"brand actions" "stepper stepper";gap:0;padding:env(safe-area-inset-top,0px) 0 0}
  .brand{grid-area:brand;align-self:stretch;justify-content:center;min-width:0;padding-left:max(var(--pad),env(safe-area-inset-left))}
  .brand-mark{font-size:1.2rem;white-space:nowrap}
  .brand-sub,.save-state{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;display:block}
  .topbar-actions{grid-area:actions;align-items:center;padding-right:max(var(--pad),env(safe-area-inset-right))}
  .stepper{grid-area:stepper;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;height:var(--step-h);border-top:1px solid rgba(255,255,255,.08)}
  .step{display:block;height:var(--step-h);padding:7px 2px 0;border-radius:0;border-bottom:2px solid transparent;font-size:.75rem;font-weight:600;text-align:center;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:-.005em}
  .step .n{display:grid;width:26px;height:26px;margin:0 auto 4px;font-size:.78rem}
  @media (max-width:360px){.step{padding-left:6px;padding-right:6px;letter-spacing:0}}
  .step.active,.step.active.done{background:transparent;border-bottom-color:var(--bronze-l);color:#fff}
  .step:active:not(:disabled){background:rgba(255,255,255,.1)}

  /* buttons and fields (D102) */
  .btn{height:46px;padding:0 16px;font-size:.95rem}
  .btn-sm{height:44px;padding:0 14px;font-size:.9rem}
  .btn-icon{width:44px;height:44px}
  .btn:active:not(:disabled){background:var(--bronze-bg);border-color:var(--bronze);transform:translateY(1px)}
  .btn-primary:active:not(:disabled){background:#2a2e35;border-color:#2a2e35}
  .btn-accent:active:not(:disabled){background:var(--bronze-d);border-color:var(--bronze-d)}
  .topbar .btn-ghost:active:not(:disabled){background:rgba(255,255,255,.14);border-color:var(--bronze-l)}
  .topbar .btn-sm{padding:0 12px}
  .inp,select.sel{height:46px;font-size:16px;padding:0 12px}
  .field>label,.lbl{font-size:.82rem}
  .check{min-height:44px;gap:12px}
  .check input{width:22px;height:22px;flex:none}
  .seg button{height:44px;padding:0 14px;flex:1 0 auto;white-space:nowrap}
  .seg button.zoom-in,.seg button.zoom-out{width:auto;flex:0 0 52px;font-size:1.2rem}
  .seg button:active{background:var(--bronze-bg)}

  /* step 1 (D109) */
  .drop{padding:24px 16px}
  .drop h2{font-size:1.3rem}
  .drop .btn{width:100%;margin-top:16px}
  .import-grid{gap:12px}
  .import-grid .panel-pad .kv{grid-template-columns:max-content minmax(0,1fr)}
  .import-grid .panel-pad .btn{flex:1}
  .cards{grid-template-columns:minmax(0,1fr)}
  .card{min-height:72px;padding:14px 16px}
  .card:active:not(:disabled){border-color:var(--bronze);background:var(--bronze-bg)}
  .report .grid{grid-template-columns:minmax(0,1fr)!important}
  .report>div:first-child{flex-wrap:wrap}
  .report>div:first-child .btn{flex:1 1 100%}

  /* step 2 (D110 to D112): summary, supply block, cards */
  .summary-m{margin-bottom:var(--gap);padding:12px 14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow)}
  .sm-l1{font-weight:600;font-size:1rem}
  .sm-l2{margin-top:2px;font-size:.9rem;color:var(--ink-2)}
  .sm-warn{margin-top:4px;font-size:.9rem;font-weight:600;color:var(--warn)}
  .supply-m{margin-bottom:var(--gap);overflow:hidden}
  .sup-toggle{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:56px;padding:8px 14px;border:0;background:transparent;text-align:left;cursor:pointer;color:var(--ink)}
  .sup-toggle:active{background:var(--bronze-bg)}
  .sup-toggle .st{display:flex;flex-direction:column;gap:1px;min-width:0}
  .sup-toggle .sh{font-weight:600;font-size:1rem}
  .sup-toggle .sv{font-size:.85rem;line-height:1.3;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}
  .sup-toggle .chev{flex:none;display:inline-flex;transition:transform .18s}
  .sup-toggle[aria-expanded=true] .chev{transform:rotate(180deg)}
  .supply-body{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;padding:14px 14px 16px;border-top:1px solid var(--line)}
  .supply-m .grp-title{margin-bottom:8px;font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--bronze-d)}
  .supply-m .supply-fields{grid-template-columns:repeat(2,minmax(0,1fr))}
  .supply-m .supply-fields .field:has(#sup-ic),.supply-m .supply-fields .field:has(#sup-mk){grid-column:1/-1}
  .ll .lt-tools{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;margin:0 0 12px}
  .ll .lt-tools .btn-accent{min-width:0}
  .ll .lt-issues{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 14px}
  .lcards{display:grid;grid-template-columns:minmax(0,1fr);gap:10px}
  .lcard{display:flex;flex-direction:column;gap:5px;width:100%;min-height:72px;padding:12px 10px 12px 14px;text-align:left;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-left:4px solid transparent;border-radius:var(--r-lg);box-shadow:var(--shadow);cursor:pointer;touch-action:manipulation}
  .lcard.has-err{border-left-color:var(--err)}
  .lcard.has-warn{border-left-color:#D9B45A}
  .lcard:active{background:var(--bronze-bg)}
  .lc-top{display:flex;align-items:center;gap:10px;min-width:0}
  .lc-tag{flex:none;max-width:44%;padding:3px 9px;border-radius:12px;background:var(--bronze-bg);color:var(--bronze-d);font-family:var(--f-mono);font-size:.82rem;font-weight:600;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .lc-name{flex:1;min-width:0;font-weight:600;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}
  .lc-name.empty{font-weight:400;color:var(--ink-3)}
  .lc-chev{flex:none;display:inline-flex;color:var(--ink-3)}
  .lc-meta{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere;font-size:.88rem;line-height:1.35;color:var(--ink-2)}
  .lc-issue{font-size:.85rem;line-height:1.35;font-weight:600;overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .lc-issue.err{color:var(--err)}
  .lc-issue.warn{color:var(--warn)}
  .lc-empty{padding:28px 0;text-align:center;color:var(--ink-3)}
  .add-end{width:100%;margin-top:12px;border-style:dashed;border-color:var(--line-2);background:transparent;color:var(--ink-2)}

  /* step 3 (D114, interim without the line editor) */
  .wiz-nav button{min-height:44px}
  .q{padding:16px}
  .q-head{flex-wrap:wrap;gap:4px 10px;align-items:center}
  .q-head>.tag,.q-head>.q-reset{margin-top:0}
  .q-head>.q-reset{min-height:44px}
  .q-head>.tag{height:auto;min-height:0;background:transparent;padding:0;font-size:.85rem;font-weight:500;color:var(--ink-3)}
  .q-head .q-text{flex:1 1 100%;min-width:0}
  .q-reset{min-height:44px;min-width:44px;padding:0 4px;font-size:.88rem;display:inline-flex;align-items:center}
  .q-help{margin-bottom:12px;font-size:.92rem;line-height:1.45}
  .opts{grid-template-columns:minmax(0,1fr);gap:8px}
  .opts.two{grid-template-columns:repeat(2,minmax(0,1fr))}
  .opt .tag{padding-left:0}
  .opt{min-height:56px;padding:12px 14px;justify-content:center}
  .opt:active:not(:disabled):not(.sel){border-color:var(--bronze);background:var(--bronze-bg)}
  .q-inline{gap:8px 10px}
  .q-inline .field{width:100%}
  .q-inline>span{flex-basis:100%}
  .q-inline.dims{flex-wrap:nowrap}
  .q-inline.dims .field{width:auto;flex:1 1 0;min-width:0}
  .wiz-side{position:static;max-height:none;overflow:visible;padding:0}
  .ans-toggle{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;min-height:48px;padding:0 16px;border:0;background:transparent;border-radius:var(--r-lg);font-weight:600;font-size:1rem;text-align:left;cursor:pointer}
  .ans-toggle .chev{flex:none;transition:transform .18s}
  .ans-toggle[aria-expanded=true] .chev{transform:rotate(180deg)}
  .wiz-side .ans-body{padding:0 10px 12px}
  .ans{min-height:44px;align-items:center;padding:6px 8px;gap:12px}
  .ans .al{flex:1;min-width:0}
  .ans .av{flex:0 1 45%;min-width:0;overflow-wrap:anywhere}
  .ans-sec{margin-top:10px;padding:0 6px}

  /* bottom bar (D108) */
  .footer-nav{position:sticky;bottom:0;z-index:40;margin:12px calc(-1 * var(--pad)) 0;padding:8px var(--pad) calc(8px + env(safe-area-inset-bottom,0px));gap:10px;justify-content:stretch;background:var(--surface);border-top:1px solid var(--line);box-shadow:0 -4px 14px rgba(20,22,26,.08)}
  .footer-nav .btn{display:block;min-width:0;overflow:hidden;text-overflow:ellipsis;line-height:42px;padding:0 14px;text-align:center}
  .footer-nav .btn:first-child:not(:last-child){flex:0 0 auto;max-width:42%}
  .footer-nav .btn:last-child{flex:1 1 0}
  .footer-nav .btn.two{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;height:auto;min-height:46px;padding:5px 14px;line-height:1.2;overflow:visible;text-overflow:clip}
  .footer-nav .btn.two .nx-b{max-width:100%;white-space:normal;text-align:center;font-size:.78rem;font-weight:400;line-height:1.2;opacity:.9;overflow-wrap:anywhere}
  .footer-nav.eq .btn{flex:1 1 0;max-width:none}
  .footer-nav.eq .btn:first-child:not(:last-child){flex:1 1 0;max-width:none}
  html.kbd .footer-nav{display:none}
  .toast-host{left:16px;right:16px;bottom:calc(var(--bar-h) + 10px + env(safe-area-inset-bottom,0px));align-items:stretch}
  .toast{text-align:center;display:flex;align-items:center;justify-content:center;gap:8px}
  .toast .toast-act{min-height:44px;min-width:44px;margin-left:auto;flex:none}

  /* step 4 header (D115) and quick fix panels */
  .res-head{grid-template-columns:minmax(0,1fr);padding:14px;gap:12px}
  .banner{width:100%}
  .stats{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}
  .stats .stat{min-width:0;overflow-wrap:anywhere}
  .stats .stat:nth-child(-n+2){grid-column:1/-1}
  .res-head .actions{display:block!important}
  .res-head .actions .btn{width:100%}
  .res-head .actions .btn+.btn{display:none}
  .split-note{flex-direction:column;align-items:stretch;gap:8px}
  .split-note .btn{width:100%}
  .quickfix,.applied{padding:12px 14px}
  .quickfix .vactions,.applied .vactions{flex-direction:column;padding:8px 0 0}
  .btn-sm.wrap,.vactions .btn,.quickfix .btn,.applied .btn{min-height:44px;height:auto;white-space:normal;padding:8px 14px;line-height:1.25}
  .vactions .btn,.quickfix .vactions .btn{width:100%}
  .applied .top{flex-wrap:wrap;gap:6px 8px}
  .applied .top .btn{margin-left:0!important;width:100%}

  /* tabs and sub-tabs (D116) */
  .tabs{height:46px;margin-left:calc(-1 * var(--pad));margin-right:calc(-1 * var(--pad));padding:0 var(--pad);gap:0}
  .tab{height:46px;padding:0 16px}
  .tab:active{color:var(--ink);background:var(--bronze-bg)}
  .toolbar{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .toolbar>*{min-width:0}
  .toolbar>:not(.field){grid-column:1/-1}
  .toolbar .grow{display:none}
  .toolbar .field{width:100%}
  .toolbar .inp{max-width:none!important}
  .toolbar .btn{width:100%}
  .toolbar>.seg{display:flex;overflow-x:auto;scrollbar-width:none;max-width:100%}
  .toolbar .hint{grid-column:1/-1}
  .hint-line{margin:-2px 0 0}

  /* drawings (D117): two toggles, the inline preview, the hint */
  .dtoggles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:8px}
  .dtoggles.one{grid-template-columns:minmax(0,1fr)}
  .dtoggle{display:flex;align-items:center;justify-content:space-between;gap:8px;min-width:0;min-height:44px;padding:0 14px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--surface);font-weight:600;font-size:.95rem;text-align:left;cursor:pointer;color:var(--ink)}
  .dtoggle[aria-expanded=true]{border-color:var(--bronze);background:var(--bronze-bg)}
  .dtoggle:active{background:var(--bronze-bg)}
  .dtoggle .chev{flex:none;display:inline-flex;transition:transform .18s}
  .dtoggle[aria-expanded=true] .chev{transform:rotate(180deg)}
  .dpanel{margin-bottom:10px;padding:14px}
  .params-m{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .params-m .field>label{overflow-wrap:anywhere}
  .params-m select.sel{padding:0 8px;text-overflow:ellipsis}
  @media (max-width:420px){.params-m{grid-template-columns:minmax(0,1fr)}} /* the option names do not fit half of a narrow screen at 16 px */
  .layer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 12px}
  .layer-grid .check{margin:0;min-width:0;overflow-wrap:break-word;gap:6px}
  @media (max-width:359px){.layer-grid{grid-template-columns:minmax(0,1fr)}}
  .layer-acts{display:flex;gap:10px;margin-top:8px;padding-top:10px;border-top:1px solid var(--line)}
  .layer-acts .btn{flex:1}
  .viewer.preview{height:62vh;height:62dvh;min-height:240px;touch-action:auto;cursor:pointer;border-radius:var(--r-lg)}
  .viewer.preview .stage{will-change:auto}
  .vopen{position:absolute;top:4px;right:4px;z-index:2;min-width:44px;height:44px;padding:0 16px;border:1px solid rgba(255,255,255,.2);border-radius:var(--r);background:rgba(20,22,26,.78);color:#fff;font-weight:600;font-size:.9rem;cursor:pointer}
  .vopen:active{background:rgba(20,22,26,.95)}
  .vopen{scroll-margin:-48px 0} /* a corner control of the preview: revealing it must not scroll the page (the sticky bars would count as a reason to) */
  .viewer-hint{margin:10px 2px 0;font-size:.85rem}

  .tbl-scroll{max-height:none}
  /* section rows stay under the stepper (D118); in compact mode they scroll with the page */
  table.dt.bom tr.sec,table.dt.jr tr.sec{position:sticky;top:var(--step-h);z-index:3}
  table.dt.bom tr.sec.grand{position:static}
  .hlbar{flex-wrap:wrap;gap:8px 10px;padding:10px 14px}
  .hlbar .grow{flex:1 1 100%}
  .hlbar .grow:empty{display:none}
  .hlbar .btn{flex:1 1 0}
  .empty{padding:28px 16px}

  /* N17: a bottom sheet for "Параметры" and a long list of "Слои" on a narrow phone */
  .bsheet{position:fixed;inset:auto 0 0 0;width:100%;max-width:none;height:auto;max-height:80vh;max-height:80dvh;margin:0;padding:0;border:0;border-radius:14px 14px 0 0;background:var(--bg);color:var(--ink);overscroll-behavior:contain;box-shadow:0 -8px 28px rgba(20,22,26,.25)}
  .bsheet::backdrop{background:rgba(20,22,26,.45)}
  .bsheet[open]{display:flex;flex-direction:column;animation:sheetup .18s ease-out}
  .bs-head{flex:none;display:flex;align-items:center;gap:12px;padding:10px max(var(--pad),env(safe-area-inset-right)) 10px max(var(--pad),env(safe-area-inset-left));border-bottom:1px solid var(--line)}
  .bs-title{flex:1;min-width:0;font-family:var(--f-head);font-size:1.35rem;font-weight:600}
  .bs-done{flex:none;min-width:88px;background:var(--ink);border-color:var(--ink);color:#fff}
  .bs-body{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:14px max(var(--pad),env(safe-area-inset-right)) calc(18px + env(safe-area-inset-bottom,0px)) max(var(--pad),env(safe-area-inset-left))}
  .bsheet .dpanel{margin:0;padding:0;border:0;box-shadow:none;background:transparent}
  .bsheet .params-m{grid-template-columns:minmax(0,1fr);gap:8px}
  .bsheet .field>label{font-size:.88rem}
  .bsheet select.sel{height:48px;font-size:16px}
  .bsheet .layer-grid{grid-template-columns:minmax(0,1fr);gap:0}
  .bsheet .layer-grid .check{min-height:48px;margin:0;overflow-wrap:normal;word-break:normal}
  .bsheet .layer-acts{display:flex;gap:10px;margin-top:10px}
  .bsheet .layer-acts .btn{flex:1}
  /* checks (D120) */
  .vitem .vbody{padding:14px}
  .vitem .vactions{padding:0 14px 14px;flex-direction:column}
  [role=tabpanel]>.vcounts{margin-bottom:14px}
  .vcounts{gap:6px}
  .vgroup h3{flex-wrap:wrap}
  .quickfix>div{overflow-wrap:anywhere}

  /* enclosures (D121), documents (D122) */
  .enc{padding:14px;gap:12px}
  .enc .specs{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px}
  .enc .specs .stat{min-width:0;overflow-wrap:anywhere}
  .enc .specs .stat:first-child{grid-column:1/-1}
  .enc>div:last-child .btn{width:100%}
  .enc-toggle{width:100%;margin:4px 0}
  .enc-grid>.enc-grid{margin-top:0}
  .docs{grid-template-columns:minmax(0,1fr)}
  .doc{padding:16px}
  .doc .btn{width:100%}
  .doc-acts{flex-direction:column}
  .doc-acts .btn{flex:none}
  a.btn:active{background:var(--bronze-bg);border-color:var(--bronze)}
  a.btn.btn-primary:active{background:#2a2e35;border-color:#2a2e35}

  /* dialogs and errors (D123) */
  .dlg{width:calc(100% - 32px);max-width:none;padding:20px 16px}
  .dlg-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .dlg-actions .btn{min-width:0;height:auto;min-height:46px;padding:8px 10px;white-space:normal;line-height:1.2}
  .error-box{flex-direction:column;gap:10px;padding:12px 14px}
  .error-box .btn{width:100%;align-self:stretch}
  .dlg[open]{animation:sheetin .18s ease-out}
  @keyframes sheetin{from{opacity:0;transform:translateY(8px)}}
}
/* D102: the motion this wave adds is switched off for people who ask for less motion; desktop motion is untouched */
@media (max-width:720px) and (prefers-reduced-motion:reduce){
  .dlg[open]{animation:none}
  .ans-toggle .chev{transition:none}
  .btn:active:not(:disabled){transform:none}
}
@media (max-width:360px){
  .step{padding-left:0;padding-right:0;letter-spacing:-.02em}
}
@media (max-width:720px) and (max-height:500px){
  :root{--bar-h:48px}
  .topbar{position:static}
  .footer-nav{padding-top:0;padding-bottom:env(safe-area-inset-bottom,0px)}
  .footer-nav .btn{height:40px;line-height:38px}
  html{scroll-padding-top:8px}
}

/* print: result tabs only */
@media print{
  @page{size:A3 landscape;margin:10mm}
  body{background:#fff;min-width:0}
  .topbar,.error-host,.toast-host,.progress,.tabs,.toolbar,.layers,.footer-nav,.res-head .actions,.hlbar,.page-head .actions,.no-print,.viewer .zoom-ind,.viewer-hint,.split-note button,.dtoggles,.dpanel,.vopen{display:none!important}
  .view{padding:0;max-width:none}
  .viewer{height:auto!important;overflow:visible;border:0;background:none}
  .viewer .stage{position:static;transform:none!important}
  .viewer .stage svg{width:100%!important;height:auto!important}
  .viewer-wrap{display:block}
  .tbl-scroll{max-height:none;overflow:visible;border:0}
  table.dt th{position:static}
  table.dt tr{break-inside:avoid}
  .panel{box-shadow:none}
  .vitem,.enc{break-inside:avoid}
  [data-tabpanel][hidden]{display:none!important}
}