:root{
  --bg:#101214; --panel:#181b1f; --panel2:#1f2329; --line:#2c3238;
  --fg:#e8ecf1; --dim:#98a2ad; --accent:#3d8bfd; --ok:#4cd07d; --warn:#ffb754; --err:#ff6b6b;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--fg);
  font:13px/1.45 system-ui,"Segoe UI",Roboto,Arial,sans-serif}
body{display:flex;flex-direction:column;overflow:hidden}

#toolbar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:8px 12px;background:linear-gradient(180deg,#1c2026,#151a1f);border-bottom:1px solid var(--line)}
.brand{font-weight:700;font-size:15px;white-space:nowrap}
.brand .sub{font-weight:400;font-size:11px;color:var(--dim);margin-left:6px}
.grp{display:flex;align-items:center;gap:6px}
.btn{background:var(--panel2);color:var(--fg);border:1px solid var(--line);border-radius:6px;
  padding:6px 10px;cursor:pointer;font-size:12px}
.btn:hover{border-color:var(--accent)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.btn.active{background:#7a3d00;border-color:var(--warn);color:#ffdca8}
.btn.file{background:#243044;border-color:#39567f}
.doc{color:var(--dim);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chk{color:var(--dim);font-size:12px;display:flex;align-items:center;gap:4px}
.zoom #zoomLabel{color:var(--dim);width:44px;text-align:right}

main{flex:1;display:flex;min-height:0}
#stage{position:relative;flex:1;min-width:0;background:
  repeating-conic-gradient(#15181c 0% 25%, #191d22 0% 50%) 50%/22px 22px}
#canvas{position:absolute;inset:0;width:100%;height:100%;cursor:default;touch-action:none}
#canvas.blockmode{cursor:crosshair}

#hud{position:absolute;left:10px;top:10px;background:rgba(12,14,16,.85);border:1px solid var(--line);
  border-radius:8px;padding:8px 10px;pointer-events:none;max-width:560px}
.hudline{white-space:nowrap}
.hudline.small{font-size:11.5px;color:var(--dim);margin-top:2px}
.hudline.warn{color:var(--warn);white-space:normal}

#legend{position:absolute;left:10px;bottom:10px;display:flex;gap:6px;flex-wrap:wrap;max-width:70%}
.lg{font-size:11px;padding:2px 7px;border-radius:10px;background:rgba(12,14,16,.8);border:1px solid var(--line)}
.lg.k-norma{color:#ff8a8a;border-color:#7a2a2a}
.lg.k-obrobka_cieplna{color:#ffa94d;border-color:#7a4a1a}
.lg.k-pokrycie{color:#7ee787;border-color:#1f6b2f}
.lg.k-material{color:#d78bff;border-color:#5b2a7a}
.lg.k-wymiar{color:#c9d1d9}
.lg.k-uwaga{color:#7cc4ff}
.lg.k-opis{color:#a9b4c0}
.lg.k-inne{color:#8b949e}
.lg.k-block{color:#ff6b6b;border-color:#7a2a2a}
.lg.k-strefa{color:#ffd479;border-color:#7a4a00}
.lg.k-kawalek{color:#b9b0ff;border-color:#4a3f8a}

#spinner{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:12px;
  background:rgba(8,10,12,.55);font-size:14px}
.ring{width:26px;height:26px;border:3px solid #333b44;border-top-color:var(--accent);border-radius:50%;
  animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

#side{width:390px;min-width:320px;border-left:1px solid var(--line);background:var(--panel);
  display:flex;flex-direction:column;min-height:0}
.sidehead{display:flex;justify-content:space-between;padding:9px 12px;border-bottom:1px solid var(--line);
  font-weight:600}
.count{color:var(--dim);font-weight:400}
.filters{display:flex;flex-wrap:wrap;gap:6px;padding:8px 10px;border-bottom:1px solid var(--line)}
.filters label{font-size:11.5px;display:flex;align-items:center;gap:4px;background:var(--panel2);
  border:1px solid var(--line);border-radius:12px;padding:2px 8px;cursor:pointer}
.items{overflow:auto;flex:1;padding:8px}
.empty{color:var(--dim);padding:14px;text-align:center}
.card{border:1px solid var(--line);border-left-width:4px;border-radius:6px;background:var(--panel2);
  padding:8px 10px;margin-bottom:8px;cursor:pointer}
.card:hover{border-color:var(--accent)}
.card.sel{outline:2px solid var(--accent)}
.card .top{display:flex;justify-content:space-between;gap:8px;font-size:11px;color:var(--dim)}
.card .pl{color:#c8f7c5;margin-top:4px;font-weight:600}
.card .orig{margin-top:2px;color:#9fb0c0;font-size:12px}
.card .cmt{margin-top:5px;color:#ffd479;font-size:12px}
.card.b-norma{border-left-color:#ff8a8a}
.card.b-obrobka_cieplna{border-left-color:#ffa94d}
.card.b-pokrycie{border-left-color:#7ee787}
.card.b-material{border-left-color:#d78bff}
.card.b-wymiar{border-left-color:#c9d1d9}
.card.b-uwaga{border-left-color:#7cc4ff}
.card.b-opis{border-left-color:#a9b4c0}
.card.b-inne{border-left-color:#8b949e}
.badge{font-size:10.5px;border:1px solid var(--line);border-radius:9px;padding:1px 6px}

.modal{position:fixed;inset:0;background:rgba(5,7,9,.7);display:flex;align-items:center;justify-content:center;z-index:50}
.modalbox{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px 20px;
  width:520px;max-width:92vw;max-height:88vh;overflow:auto}
.modalbox.wide{width:96vw;max-width:1280px}
.kbbar{display:flex;gap:8px;align-items:center;margin-bottom:8px}
.kbbar input{flex:1;padding:6px 8px;border-radius:6px;border:1px solid var(--line);background:#0e1114;color:var(--fg)}
.kbstat{font-size:11.5px;color:var(--dim);white-space:nowrap}
.kbadd{display:grid;grid-template-columns:1.4fr 1fr 130px 1.6fr 90px;gap:6px;margin-bottom:10px}
.kbadd input,.kbadd select{padding:6px 8px;border-radius:6px;border:1px solid var(--line);background:#0e1114;color:var(--fg);font-size:12px}
.kbhead,.kbrow{display:grid;grid-template-columns:1.4fr 130px 1.1fr 1.6fr 60px 130px;gap:6px;align-items:center}
.kbhead{font-size:11px;color:var(--dim);padding:4px 0;border-bottom:1px solid var(--line)}
.kbtable{max-height:44vh;overflow:auto;border-bottom:1px solid var(--line)}
.kbrow{padding:4px 0;border-bottom:1px dashed #23282e}
.kbrow input,.kbrow select{width:100%;padding:4px 6px;border-radius:5px;border:1px solid var(--line);
  background:#0e1114;color:var(--fg);font-size:12px}
.kbnap{font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.kbsrc{color:var(--dim);font-size:10.5px;margin-left:6px}
.kbuzyc{color:var(--dim);font-size:11.5px;text-align:right}
.kbhist{max-height:26vh;overflow:auto;font-size:11.5px;color:var(--dim)}
.kbhist div{padding:2px 0;border-bottom:1px dashed #1e2227}
.sidehead.mt{margin-top:10px}
.modalbox h2{margin:0 0 12px;font-size:16px}
.modalbox label{display:block;margin-bottom:10px;color:var(--dim);font-size:12px}
.modalbox label.check{display:flex;align-items:center;gap:8px;line-height:1.35}
.modalbox label.check input{width:auto;margin:0;flex:0 0 auto}
.modalbox input,.modalbox select{width:100%;margin-top:3px;padding:6px 8px;border-radius:6px;
  border:1px solid var(--line);background:#0e1114;color:var(--fg);font-size:12.5px}
.modalbtns{display:flex;gap:8px;margin-top:14px}
.note{font-size:11.5px;color:var(--dim);background:#12161a;border:1px solid var(--line);border-radius:6px;padding:8px}
.testresult{margin-top:10px;font-size:12px;min-height:16px}
.testresult.ok{color:var(--ok)} .testresult.err{color:var(--err)}

#statusbar{border-top:1px solid var(--line);padding:4px 12px;font-size:11.5px;color:var(--dim);background:#0d1013}