:root{font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:#173448;background:#edf3f7}*{box-sizing:border-box}body{margin:0}header{height:66px;background:#102b40;color:white;display:flex;justify-content:space-between;align-items:center;padding:10px 18px;gap:10px}header b{font-size:19px}header b span{color:#6ad4e5}header small{display:block;color:#a8c2d0;font-size:11px}.head-actions{display:flex;gap:8px}button{background:#eef6fa;color:#14394d;border:1px solid #bcd3df;border-radius:9px;padding:10px;cursor:pointer;font:600 13px system-ui}button:active{transform:scale(.98)}header button{background:#25465a;color:#fff;border-color:#3d667d}main{display:flex;height:calc(100dvh - 66px)}aside{width:326px;flex:none;background:#fff;overflow:auto;border-right:1px solid #d7e2e9;padding:12px}.panel{border-bottom:1px solid #e1e9ee;padding-bottom:14px;margin-bottom:12px}.panel h3{margin:5px 0 12px;font-size:14px;color:#126584}input,select{width:100%;border:1px solid #bfd0da;background:white;border-radius:8px;padding:10px;font:14px system-ui;color:#173448}label{display:block;font-size:12px;font-weight:700;margin:10px 0}label input,label select{margin-top:5px}.two{display:grid;grid-template-columns:1fr 1fr;gap:7px}.tools{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}.tools button{min-height:49px;text-align:left;font-size:12px}.tools button.active{background:#087fa4;color:#fff;border-color:#087fa4}.hint{color:#657f8e;font-size:12px;line-height:1.5}.danger{color:#a52a35;background:#fff1f2}#showMeasure{width:auto;margin:0 6px 0 0}.workspace{min-width:0;flex:1;display:flex;flex-direction:column}.topbar{background:#f9fcfe;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 12px;font-size:12px}.zoom{display:flex;align-items:center;gap:6px}.zoom button{padding:6px 12px}#stage{flex:1;overflow:auto;padding:18px;touch-action:pan-x pan-y}#drawing{background:#fff;display:block;max-width:none;touch-action:none;box-shadow:0 4px 25px #18344825}#drawing .item{cursor:pointer}#drawing .selected{filter:drop-shadow(0 0 4px #f3a600)}footer{background:#f9fcfe;padding:9px 12px;font-size:11px;color:#627d8b}#bill{font-size:12px;line-height:1.6}#bill div{padding:4px 0;border-bottom:1px solid #e8edf1}dialog{border:1px solid #d1e0e8;border-radius:16px;box-shadow:0 20px 70px #0005;max-width:min(90vw,470px);color:#173448}dialog::backdrop{background:#071c2b88}#projectsList button{margin:5px;width:100%;text-align:left}@media(max-width:780px){header{height:58px;padding:7px 10px}header b{font-size:16px}main{height:calc(100dvh - 58px);flex-direction:column}aside{width:100%;height:43dvh;flex:none;overflow:auto;padding:10px;display:grid;grid-template-columns:1fr 1fr;gap:12px;align-content:start}.panel{min-width:0}.workspace{height:57dvh}.tools{grid-template-columns:repeat(2,minmax(0,1fr))}.tools button{min-height:44px;padding:6px;font-size:11px}#stage{padding:8px}.topbar{flex-wrap:wrap}.head-actions button{padding:7px;font-size:11px}}@media(max-width:440px){aside{grid-template-columns:1fr 1fr}.panel:nth-child(2){grid-row:span 3}.panel h3{font-size:12px}.two{gap:4px}.two button{padding:7px;font-size:11px}input,select{padding:7px}header small{font-size:10px}}@media print{header,aside,.topbar,footer{display:none!important}main,.workspace,#stage{display:block!important;height:auto!important;overflow:visible!important;padding:0!important}#drawing{width:100%!important;height:auto!important;box-shadow:none!important}#gridRect{display:none}}

/* v3: stále dostupné ovládání */
.quickbar{display:flex;align-items:center;gap:7px;padding:9px 12px;background:#dcebf2;border-bottom:1px solid #c3d9e5;overflow-x:auto;flex-shrink:0;scrollbar-width:thin}
.quick-dimensions,.quick-actions{display:flex;align-items:center;gap:7px;flex:none}
.quickbar button{white-space:nowrap;min-width:85px;background:white;border-color:#aacbd9;box-shadow:0 1px 4px #17344820}
.quick-diameter{display:flex;align-items:center;gap:6px;flex:none;white-space:nowrap;margin:0;padding:4px 7px;border:1px solid #9fc4d4;border-radius:9px;background:#fff;color:#126584;font-size:12px}
.quick-diameter input{width:82px;margin:0;padding:7px;border:0;background:#eef7fa;font-weight:700}
.quick-icon{font-size:16px}
#quickRotate{background:#087fa4;color:white;border-color:#087fa4}
#quickDelete{background:#fff2f2;color:#9d2832}
@media(max-width:780px){.quickbar{display:grid;align-items:stretch;padding:6px;gap:6px;overflow:visible}.quick-dimensions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.quick-diameter{min-width:0;justify-content:space-between;padding:4px 6px;font-size:11.5px}.quick-diameter input{min-width:0;width:72px;padding:7px 5px}.quick-actions{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:5px;width:100%}.quickbar .quick-actions button{width:100%;min-width:0;height:42px;padding:5px 2px;font-size:12px}.quick-icon{display:block;font-size:18px;line-height:1}.quick-text{display:none}.workspace{min-height:0}}

.connection-port{cursor:crosshair;touch-action:none}.connection-port:hover{fill:#c3f7e8;stroke:#00684d}

.connection-panel{display:flex;align-items:center;gap:8px;flex-wrap:wrap;background:#e5f4f7;padding:7px 10px;border-bottom:1px solid #bad7e0;flex-shrink:0}.connection-panel[hidden]{display:none!important}.connection-panel label{display:flex;align-items:center;gap:8px;margin:0;font-size:12px}.connection-panel input{width:105px;padding:8px}.connection-panel button{padding:9px}.connection-panel small{color:#b32b38}.quickbar{position:relative;z-index:2}#stage{overscroll-behavior:contain}#drawing{touch-action:none}@media(max-width:780px){.connection-panel{position:relative;z-index:2}.connection-panel label{flex:1}.connection-panel input{width:90px}.connection-panel button{font-size:12px}}

/* v6: kreslici plocha je na mobilu primarni; vsechny panely jsou v zasuvce */
.mobile-nav,.drawer-head,.drawer-shade{display:none}
@media(max-width:780px){
 html,body{height:100%;overflow:hidden}
 header{height:52px;min-height:52px}
 header small{display:none}
 .mobile-nav{display:flex;flex:none;gap:6px;align-items:center;padding:7px;background:#f6fbfe;border-bottom:1px solid #cbdde7;overflow-x:auto;scrollbar-width:none}
 .mobile-nav button{white-space:nowrap;flex:1;padding:10px 9px;font-size:12px}
 main{height:calc(100dvh - 52px - 57px);display:flex;flex-direction:column;min-height:0}
 .workspace{height:100%;min-height:0;flex:1}
 aside{display:none;position:fixed;top:0;bottom:0;left:0;z-index:40;width:min(92vw,390px);height:100dvh;background:#fff;overflow-y:auto;overscroll-behavior:contain;padding:12px 15px 40px;box-shadow:10px 0 30px #001e3055;grid-template-columns:1fr}
 aside.drawer-open{display:block}
 .drawer-head{display:flex;align-items:center;justify-content:space-between;position:sticky;top:-12px;background:#fff;padding:12px 0;z-index:3;border-bottom:1px solid #d6e2e9;margin-bottom:12px}
 .drawer-head strong{font-size:16px}
 .drawer-shade:not([hidden]){display:block;position:fixed;inset:0;background:#081d2b99;z-index:39}
 aside .panel{display:none}
 aside[data-view="tools"] #toolsPanel,aside[data-view="project"] #projectPanel,aside[data-view="selection"] #selectionPanel,aside[data-view="files"] #filesPanel,aside[data-view="files"] #billPanel{display:block}
 .tools{grid-template-columns:repeat(2,minmax(0,1fr))}
 .tools button{min-height:52px;font-size:13px}
 .quickbar{padding:6px;gap:5px;flex-shrink:0}
 .quickbar button{padding:10px 9px;font-size:12px}
 .topbar{padding:5px 8px;flex-shrink:0}
 #stage{min-height:0;flex:1;overflow:auto;padding:5px;touch-action:pan-x pan-y}
 footer{display:none}
 .connection-panel{flex-shrink:0}
}
@media print{.mobile-nav,.drawer-shade,.drawer-head{display:none!important}}

/* Tisk na dva spolehlivě oddělené listy: velký výkres a kompletní materiál. */
#printSheet{display:none}
@media print{
 @page{size:A4 landscape;margin:8mm}
 html,body{height:auto!important;min-height:0!important;overflow:visible!important;background:white!important}
 body{color:#111!important}
 body>header,body>nav,body>main,body>.drawer-shade,body>dialog{display:none!important}
 #printSheet{display:block!important;font:11pt Arial,sans-serif;color:#111}
 .print-page{width:100%}
 .print-drawing-page{height:193mm;overflow:hidden;break-after:page;page-break-after:always}
 .print-heading{height:21mm}
 .print-heading h1{font-size:17pt;margin:0 0 2mm}
 .print-heading h2{font-size:12pt;margin:0 0 1mm}
 .print-heading p{font-size:8.5pt;color:#444;margin:0}
 #printDrawing{width:100%;height:172mm;display:flex;justify-content:center;align-items:center;overflow:hidden}
 #printDrawing svg{display:block;max-width:100%;max-height:100%;width:100%;height:100%;box-shadow:none!important}
 .print-materials{break-before:page;page-break-before:always}
 .print-material-heading{display:flex;align-items:flex-start;justify-content:space-between;border-bottom:1px solid #aaa;margin-bottom:6mm;padding-bottom:3mm}
 .print-material-heading h2{font-size:17pt;margin:0 0 1mm}
 .print-material-heading p{font-size:9pt;color:#444;margin:0}
 .print-materials table{width:100%;border-collapse:collapse;font-size:10pt}
 .print-materials th,.print-materials td{border:1px solid #aaa;padding:3mm;text-align:left}
 .print-materials th:nth-child(n+2),.print-materials td:nth-child(n+2){text-align:right;width:25mm}
 .print-materials thead{display:table-header-group;background:#eaf0f4}
 .print-materials tfoot{display:table-footer-group}
 .print-materials tr{break-inside:avoid;page-break-inside:avoid}
 .print-materials tfoot{font-weight:bold;background:#eef2f5}
 .print-note{font-size:9pt;color:#555;margin-top:5mm}
}