:root{--red:#e53935;--red-dark:#b71c1c;--red-soft:#fdecea;--bg:#f4f5f7;--surface:#fff;--ink:#0f172a;--ink-2:#475569;--muted:#94a3b8;--line:#e5e8ee;--ok:#059669;--ok-soft:#ecfdf5;--warn:#b45309;--warn-soft:#fef3c7;--blue:#2563eb;--blue-soft:#eff6ff;--violet:#7c3aed;--shadow:0 1px 3px #0f172a0f, 0 4px 16px #0f172a0f;--shadow-lg:0 8px 30px #0f172a29;--r-lg:18px;--r-md:13px;--r-sm:9px;--sat:env(safe-area-inset-top,0px);--sab:env(safe-area-inset-bottom,0px);--font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{overscroll-behavior:none;height:100%;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.45}#root{height:100%}button{font-family:var(--font);cursor:pointer;color:inherit;background:0 0;border:none;padding:0}input,textarea{font-family:var(--font);font-size:16px}.app{flex-direction:column;height:100dvh;display:flex;overflow:hidden}.screen{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.scroll-body{-webkit-overflow-scrolling:touch;min-height:0;padding:14px 14px calc(20px + var(--sab));flex:1;overflow-y:auto}.hdr{padding:calc(10px + var(--sat)) 14px 10px;background:var(--surface);border-bottom:1px solid var(--line);flex-shrink:0;align-items:center;gap:10px;display:flex}.hdr-title{white-space:nowrap;text-overflow:ellipsis;flex:1;min-width:0;font-size:17px;font-weight:700;overflow:hidden}.hdr-sub{color:var(--muted);margin-top:1px;font-size:12px;font-weight:500}.brand{flex:1;align-items:center;gap:11px;min-width:0;display:flex}.brand img{border-radius:11px;width:42px;height:42px}.brand h1{letter-spacing:-.2px;margin:0;font-size:18px;font-weight:800}.btn{border-radius:var(--r-md);min-height:44px;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;gap:7px;padding:0 18px;font-size:14.5px;font-weight:600;transition:transform 60ms,background .15s;display:inline-flex}.btn:active{transform:scale(.97)}.btn-primary{background:linear-gradient(135deg, var(--red), var(--red-dark));color:#fff;border:none;box-shadow:0 3px 10px #b71c1c4d}.btn-ghost{background:0 0;border:none}.btn-danger{color:#dc2626;background:#fef2f2;border-color:#fecaca}.btn-block{width:100%}.icon-btn{border-radius:var(--r-md);width:42px;min-width:42px;height:42px;color:var(--ink-2);-webkit-user-select:none;user-select:none;background:0 0;justify-content:center;align-items:center;transition:background .15s,transform 60ms;display:inline-flex}.icon-btn:active{background:var(--line);transform:scale(.92)}.card{background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--shadow);overflow:hidden}.project-card{cursor:pointer;align-items:center;gap:13px;margin-bottom:11px;padding:15px 16px;display:flex}.project-card:active{transform:scale(.985)}.project-icon{background:var(--red-soft);width:46px;min-width:46px;height:46px;color:var(--red-dark);border-radius:13px;justify-content:center;align-items:center;display:flex}.project-name{font-size:15.5px;font-weight:700}.project-meta{color:var(--muted);margin-top:2px;font-size:12.5px}.doc-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:11px;display:grid}.doc-card{background:var(--surface);border-radius:var(--r-md);box-shadow:var(--shadow);cursor:pointer;position:relative;overflow:hidden}.doc-card:active{transform:scale(.97)}.doc-thumb{aspect-ratio:4/3;object-fit:cover;background:#fff;width:100%;display:block}.doc-card-name{white-space:nowrap;text-overflow:ellipsis;align-items:center;gap:5px;padding:8px 10px;font-size:12.5px;font-weight:600;display:flex;overflow:hidden}.doc-kebab{width:32px;height:32px;color:var(--ink-2);background:#ffffffeb;border-radius:50%;justify-content:center;align-items:center;display:flex;position:absolute;top:6px;right:6px;box-shadow:0 1px 4px #0000002e}.doc-type-badge{background:#ffffffeb;border-radius:999px;padding:3px 8px;font-size:10.5px;font-weight:700;position:absolute;top:6px;left:6px;box-shadow:0 1px 4px #0000001f}.chip-row{gap:8px;margin-bottom:13px;display:flex}.chip{color:var(--ink-2);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:8px 15px;font-size:13px;font-weight:600}.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}.bottom-bar{padding:10px 14px calc(10px + var(--sab));background:var(--surface);border-top:1px solid var(--line);flex-shrink:0;gap:9px;display:flex}.bottom-bar .btn{flex:1;padding:0 8px;font-size:13.5px}.file-btn{position:relative;overflow:hidden}.file-btn input[type=file]{opacity:0;cursor:pointer;width:100%;height:100%;font-size:0;position:absolute;inset:0}.editor-canvas{touch-action:none;-webkit-user-select:none;user-select:none;background:#e9edf2;flex:1;min-height:0;position:relative;overflow:hidden}.mode-banner{background:var(--blue-soft);color:var(--blue);border-bottom:1px solid var(--line);flex-shrink:0;align-items:center;gap:10px;min-height:38px;padding:7px 14px;font-size:12.5px;font-weight:600;display:flex}.mode-banner.draw{color:#4f46e5;background:#eef2ff}.mode-banner.editKT{background:var(--warn-soft);color:var(--warn)}.mode-banner.door{color:#be185d;background:#fce7f3}.mode-banner.window{background:var(--ok-soft);color:var(--ok)}.mode-banner.note{background:var(--blue-soft);color:var(--blue)}.mode-banner.measure{background:var(--warn-soft);color:var(--warn)}.mode-banner .spacer{flex:1}.banner-btn{background:#fffc;border:1px solid;border-radius:999px;padding:5px 13px;font-size:12.5px;font-weight:700}.banner-btn.solid{background:var(--ok);border-color:var(--ok);color:#fff}.tool-bar{padding:6px 6px calc(6px + var(--sab));background:var(--surface);border-top:1px solid var(--line);flex-shrink:0;justify-content:space-around;align-items:stretch;display:flex}.tool{border-radius:var(--r-md);min-width:54px;color:var(--ink-2);-webkit-user-select:none;user-select:none;flex-direction:column;justify-content:center;align-items:center;gap:3px;padding:7px 9px;font-size:10.5px;font-weight:600;transition:background .15s;display:flex}.tool:active{transform:scale(.94)}.tool.on{color:#fff}.tool.on.t-draw{background:#4f46e5}.tool.on.t-editKT{background:var(--warn)}.tool.on.t-door{background:#be185d}.tool.on.t-window{background:var(--ok)}.tool.on.t-note{background:var(--blue)}.tool.on.t-measure{background:var(--warn)}.float-bar{background:var(--surface);box-shadow:var(--shadow-lg);z-index:20;border-radius:999px;align-items:center;gap:4px;padding:6px;display:flex;position:absolute;bottom:14px;left:50%;transform:translate(-50%)}.float-bar .fb-btn{border-radius:999px;align-items:center;gap:6px;padding:9px 15px;font-size:13px;font-weight:700;display:flex}.float-bar .fb-btn:active{background:var(--bg)}.fb-sep{background:var(--line);width:1px;height:22px}.sheet-backdrop{z-index:100;background:#0f172a73;flex-direction:column;justify-content:flex-end;animation:.18s fadeIn;display:flex;position:fixed;inset:0}.sheet{background:var(--surface);padding:10px 18px calc(18px + var(--sab));border-radius:22px 22px 0 0;max-height:86vh;animation:.22s cubic-bezier(.2,.9,.3,1) slideUp;overflow-y:auto}.sheet-grip{background:var(--line);border-radius:2px;width:40px;height:4px;margin:2px auto 12px}.sheet-title{margin:0 0 4px;font-size:16.5px;font-weight:800}.sheet-sub{color:var(--muted);margin:0 0 14px;font-size:13px}.sheet-row{text-align:left;border-bottom:1px solid var(--line);align-items:center;gap:12px;width:100%;padding:13px 4px;font-size:15px;font-weight:600;display:flex}.sheet-row:last-child{border-bottom:none}.sheet-row:active{background:var(--bg)}.sheet-row .sub{color:var(--muted);margin-top:1px;font-size:12.5px;font-weight:500}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:.6;transform:translateY(40%)}to{opacity:1;transform:translateY(0)}}.numpad-display{justify-content:center;align-items:baseline;gap:8px;padding:14px 0 6px;display:flex}.numpad-value{letter-spacing:1px;font-variant-numeric:tabular-nums;min-height:52px;font-size:40px;font-weight:800}.numpad-value.empty{color:var(--muted)}.numpad-unit{color:var(--muted);font-size:16px;font-weight:700}.numpad-hint{text-align:center;color:var(--warn);background:var(--warn-soft);border-radius:var(--r-sm);margin-bottom:10px;padding:7px 12px;font-size:12.5px}.numpad-grid{grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px;display:grid}.numpad-key{border-radius:var(--r-md);background:var(--bg);height:56px;color:var(--ink);-webkit-user-select:none;user-select:none;font-size:22px;font-weight:700}.numpad-key:active{background:var(--line);transform:scale(.96)}.numpad-key.fn{color:var(--ink-2);font-size:17px}.numpad-actions{gap:10px;display:flex}.numpad-actions .btn{flex:1;height:50px;font-size:16px}.field{margin-bottom:13px}.field label{color:var(--ink-2);margin-bottom:6px;font-size:12.5px;font-weight:700;display:block}.field input{border:1.5px solid var(--line);border-radius:var(--r-md);background:var(--bg);outline:none;width:100%;height:48px;padding:0 14px}.field input:focus{border-color:var(--red);background:#fff}.toast-host{top:calc(12px + var(--sat));z-index:300;pointer-events:none;flex-direction:column;align-items:center;gap:8px;display:flex;position:fixed;left:0;right:0}.toast{color:#fff;max-width:88vw;box-shadow:var(--shadow-lg);background:#0f172aeb;border-radius:999px;padding:10px 18px;font-size:13.5px;font-weight:600;animation:.25s cubic-bezier(.2,.9,.3,1) toastIn}.toast.ok{background:#059669f2}.toast.err{background:#dc2626f2}@keyframes toastIn{0%{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:translateY(0)}}.empty{text-align:center;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;padding:56px 24px;display:flex}.empty svg{opacity:.5;margin-bottom:12px}.empty h3{color:var(--ink-2);margin:0 0 4px;font-size:16px}.empty p{margin:0;font-size:13.5px}.sync-chip{border-radius:999px;align-items:center;gap:5px;padding:5px 11px;font-size:11.5px;font-weight:700;display:inline-flex}.sync-chip.on{background:var(--ok-soft);color:var(--ok)}.sync-chip.off{background:var(--bg);color:var(--muted)}.sync-chip.busy{background:var(--blue-soft);color:var(--blue)}.spin{animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-screen{height:100dvh;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:14px;display:flex}.loading-spinner{border:3px solid var(--line);border-top-color:var(--red);border-radius:50%;width:34px;height:34px;animation:.8s linear infinite spin}@media (width>=700px){.scroll-body{padding:20px 24px calc(28px + var(--sab));width:100%;max-width:1080px;margin:0 auto}.doc-grid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px}.sheet{border-radius:22px;max-width:460px;margin:0 auto 24px}.bottom-bar{justify-content:center}.bottom-bar .btn{max-width:200px}}