:root{--bg:#0b1017;--surface:#151c25;--surface2:#1d2632;--line:#2c3948;--text:#e6edf3;--muted:#8fa2b5;--primary:#3b82f6;--green:#2fb977;--danger:#ef5b61}
body{background:var(--bg);color:var(--text)}
#toolbar{gap:6px;padding:7px 10px;background:linear-gradient(180deg,#18212c,#121922);box-shadow:0 2px 12px #0005;z-index:30}
.btn{min-height:32px;padding:6px 10px;border-color:var(--line);background:var(--surface2);font-size:12px}
.btn:focus-visible,.prop-input:focus-visible{outline:2px solid #60a5fa;outline-offset:2px}
.btn:disabled{opacity:.4;cursor:not-allowed}
#status-text{min-width:170px;text-align:right}
#panel{width:300px;background:var(--surface);transition:width .2s,transform .2s}
#panel.panel-hidden{width:0;transform:translateX(100%);border:0;overflow:hidden}
.panel-content{max-height:240px}
#props-panel{overflow:auto;max-height:calc(100vh - 390px)}
#canvas-wrap{touch-action:none}
.device.multi-selected .device-body{stroke:#55d6be;stroke-width:3}
.device-invalid .device-body{stroke:var(--danger)!important;stroke-width:3!important}
.cable-endpoint{fill:#fff;stroke:#111;stroke-width:1;pointer-events:none}
.toolbar-v3{display:flex;gap:5px;align-items:center}
.manual-link{display:inline-flex;align-items:center;text-decoration:none;border-color:#35618d!important;color:#b9dcff!important;background:#162a3d!important;font-weight:700}
.manual-link:hover{background:#214566!important;color:#fff!important}
.toolbar-search{width:150px;height:32px;padding:5px 9px;border:1px solid var(--line);border-radius:5px;background:#0d141d;color:var(--text)}
.toolbar-search::placeholder{color:var(--muted)}
.badge{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:#263445;color:#a9c7e8;font-size:10px}
#summary-drawer{position:absolute;right:12px;top:12px;width:min(410px,calc(100% - 24px));max-height:calc(100% - 24px);overflow:auto;z-index:25;background:#121a24f2;border:1px solid var(--line);border-radius:10px;box-shadow:0 12px 32px #0008;padding:14px;display:none}
#summary-drawer.show{display:block}
.summary-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}
.metric{background:#1a2430;border:1px solid var(--line);border-radius:8px;padding:10px}.metric strong{display:block;font-size:21px;color:#fff}.metric span{font-size:11px;color:var(--muted)}
.summary-table{width:100%;border-collapse:collapse;font-size:11px}.summary-table th,.summary-table td{padding:7px;border-bottom:1px solid var(--line);text-align:left}.summary-table th{color:#79b8ff}
.selection-bar{display:none;align-items:center;gap:5px;padding:4px 7px;border:1px solid #285b50;border-radius:6px;background:#122a27}.selection-bar.show{display:flex}
.toast-v3{position:fixed;left:50%;bottom:24px;transform:translate(-50%,18px);opacity:0;z-index:3000;background:#182330;border:1px solid #3b5268;border-radius:8px;padding:9px 14px;color:#fff;box-shadow:0 8px 24px #0008;transition:.2s;pointer-events:none;font-size:12px}.toast-v3.show{opacity:1;transform:translate(-50%,0)}
.welcome-v3{position:fixed;inset:0;z-index:2500;background:#091019dd;display:flex;align-items:center;justify-content:center;padding:18px}.welcome-card{width:min(520px,100%);padding:24px;background:#151f2a;border:1px solid #34465a;border-radius:14px;box-shadow:0 20px 60px #0009}.welcome-card h2{color:#fff;margin-bottom:8px}.welcome-card p{color:var(--muted);font-size:13px;line-height:1.65}.welcome-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
@media(max-width:1000px){#panel{width:240px}.toolbar-label,.toolbar-sep{display:none}.toolbar-search{width:120px}#status-text{display:none}}
@media(max-width:720px){#toolbar{max-height:112px;overflow:auto;align-content:flex-start}.btn{min-height:38px}#panel{position:absolute;right:0;top:0;bottom:0;width:min(86vw,310px);z-index:40;box-shadow:-10px 0 30px #0008}#panel.panel-hidden{width:min(86vw,310px);transform:translateX(105%)}#canvas-wrap{width:100%}.toolbar-search{width:110px}.panel-content{max-height:180px}}
@media print{#summary-drawer,.toast-v3,.welcome-v3{display:none!important}}