:root{--bg:#0b1220;--panel:#111a2c;--panel2:#162239;--line:#253451;--text:#e8eef8;--muted:#91a0b8;--accent:#3b82f6;--danger:#ef4444;--ok:#22c55e;--radius:12px}*{box-sizing:border-box}body{margin:0;background:#08101d;color:var(--text);font:14px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}a{color:#bcd4ff;text-decoration:none}.topbar{height:58px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line);background:#0d1728;position:sticky;top:0;z-index:30}.topbar nav{display:flex;gap:18px}.muted{color:var(--muted)}.small{font-size:12px}.pill{padding:4px 9px;border:1px solid var(--line);border-radius:999px;color:#c9d7ec}.page{max-width:1200px;margin:auto;padding:24px}.narrow{max-width:980px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px}.btn,button{display:inline-flex;align-items:center;justify-content:center;border:1px solid #34445f;border-radius:8px;background:#172238;color:var(--text);padding:9px 13px;cursor:pointer}.btn.primary,button.primary{background:var(--accent);border-color:var(--accent);color:white}.wide{width:100%}.alert{padding:12px;border-radius:8px;background:#18243a;border:1px solid #324463;margin:12px 0}.alert.error{border-color:#71333a;background:#311921}.alert.success{border-color:#256a43;background:#10291d}pre{white-space:pre-wrap;word-break:break-all;background:#07101c;padding:12px;border-radius:8px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px;border-bottom:1px solid var(--line)}input,select{width:100%;padding:9px;border:1px solid #33435e;border-radius:7px;background:#0a1424;color:var(--text)}label{display:grid;gap:5px}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;align-items:end}.login-page{min-height:100vh;display:grid;place-items:center}.login-card{width:min(420px,92vw);background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:28px}.brand-mark{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:var(--accent);font-weight:800}.builder-body{overflow:hidden}.studio-layout{height:calc(100vh - 58px);display:grid;grid-template-columns:220px minmax(0,1fr) 300px}.palette,.properties{background:var(--panel);padding:14px;overflow:auto}.palette{border-right:1px solid var(--line)}.properties{border-left:1px solid var(--line)}.palette-item{display:flex;justify-content:space-between;align-items:center;padding:10px;border:1px solid var(--line);border-radius:8px;margin:8px 0;background:var(--panel2);cursor:grab}.canvas-wrap{overflow:auto;padding:16px}.studio-canvas,.runtime-grid{position:relative;display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:64px;gap:10px;min-height:720px;background-image:linear-gradient(#14223a 1px,transparent 1px),linear-gradient(90deg,#14223a 1px,transparent 1px);background-size:calc((100% - 110px)/12 + 10px) 74px;border:1px dashed #2f4668;border-radius:12px;padding:10px}.studio-canvas.tablet{max-width:820px;margin:auto}.studio-canvas.mobile{max-width:430px;margin:auto}.widget{position:relative;background:#111d31;border:1px solid #2a3c5b;border-radius:10px;padding:12px;overflow:hidden;min-height:64px}.widget.selected{outline:2px solid var(--accent)}.widget .drag{position:absolute;right:8px;top:6px;color:#70809a;cursor:move}.widget .widget-title{font-size:12px;color:var(--muted);margin-bottom:6px}.value-big{font-size:28px;font-weight:750}.status-dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:#64748b;margin-right:7px}.chart-box{height:100%;min-height:140px}.toolbar{display:flex;gap:8px}.device-switch{display:flex;gap:6px;margin-bottom:10px}.device-switch .active{background:#263754}.properties .prop{display:grid;gap:5px;margin:10px 0}.properties .row{display:grid;grid-template-columns:1fr 1fr;gap:8px}.dashboard-page{padding:18px}.runtime-grid{max-width:1500px;margin:auto;border:none;background-image:none}.resize-grip{position:absolute;right:3px;bottom:3px;width:16px;height:16px;cursor:nwse-resize;border-right:2px solid #64748b;border-bottom:2px solid #64748b}@media(max-width:900px){.studio-layout{grid-template-columns:160px 1fr}.properties{position:fixed;right:0;top:58px;bottom:0;width:290px;z-index:25;box-shadow:-10px 0 30px #0008}.runtime-grid{grid-template-columns:repeat(6,1fr)}}@media(max-width:600px){.topbar nav{display:none}.studio-layout{grid-template-columns:1fr}.palette{display:none}.properties{width:100%;top:auto;height:42vh}.runtime-grid{display:block}.runtime-grid .widget{margin-bottom:10px}}