:root{--brand-50: #eef2ff;--brand-100: #e0e7ff;--brand-400: #818cf8;--brand-500: #6366f1;--brand-600: #4f46e5;--brand-700: #4338ca;--slate-50: #f8fafc;--slate-100: #f1f5f9;--slate-200: #e2e8f0;--slate-300: #cbd5e1;--slate-400: #94a3b8;--slate-500: #64748b;--slate-600: #475569;--slate-700: #334155;--slate-800: #1e293b;--slate-900: #0f172a;--emerald-400: #34d399;--emerald-500: #10b981;--emerald-700: #047857;--amber-400: #fbbf24;--amber-600: #d97706;--red-600: #dc2626;--font: Inter, "Segoe UI", system-ui, -apple-system, sans-serif;--mono: "JetBrains Mono", Consolas, ui-monospace, monospace;--shadow-sheet: 0 2px 8px rgba(15, 23, 42, .12), 0 0 0 1px rgba(15, 23, 42, .08);--shadow-pop: 0 10px 25px -5px rgba(0, 0, 0, .1), 0 8px 10px -6px rgba(0, 0, 0, .1)}*{box-sizing:border-box}html,body{height:100%;margin:0}body{font:400 13px/20px var(--font);color:var(--slate-700);background:var(--slate-900);display:flex;flex-direction:column;overflow:hidden}[hidden]{display:none!important}button{font:inherit}svg{width:14px;height:14px;flex:none}.mono{font-family:var(--mono)}:focus-visible{outline:2px solid var(--brand-500);outline-offset:1px}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#94a3b859;border-radius:9999px}::-webkit-scrollbar-thumb:hover{background:#64748b8c}#appbar{height:56px;flex:none;display:flex;align-items:center;gap:12px;padding:0 16px;background:var(--slate-900);color:#fff;border-bottom:1px solid var(--slate-800);z-index:30}.brand{display:flex;align-items:center;gap:8px}.brand-name{font-weight:600;font-size:16px;letter-spacing:-.01em}.back{color:var(--slate-300);text-decoration:none;font-size:12px;font-weight:600;padding:4px 8px;border:1px solid var(--slate-700);border-radius:4px;white-space:nowrap}.back:hover{color:#fff;border-color:var(--slate-500)}.vr{width:1px;height:16px;background:var(--slate-700)}.doc-title{display:flex;align-items:center;gap:8px;min-width:0}.doc-name{font-size:14px;font-weight:500;color:var(--slate-200);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:36ch;padding:4px 8px}.doc-state{font-size:12px;color:var(--slate-400);white-space:nowrap}.doc-state.changed{color:var(--slate-200)}.app-center{display:flex;align-items:center;gap:12px;margin-left:auto;font-size:12px;color:var(--slate-400)}.doc-stats{font-size:12px;color:var(--slate-400)}.mini-seg{display:flex;gap:2px}.mini-seg button{background:transparent;border:0;color:var(--slate-400);padding:4px;border-radius:4px;cursor:pointer;display:grid;place-items:center}.mini-seg button:hover:not(:disabled){color:#fff;background:var(--slate-700)}.mini-seg button:disabled{opacity:.35;cursor:not-allowed}.app-actions{display:flex;gap:8px}.hbtn{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;color:var(--slate-200);background:var(--slate-800);border:1px solid var(--slate-700);padding:6px 12px;border-radius:4px;cursor:pointer;text-decoration:none;user-select:none;transition:background .12s}.hbtn:hover{background:var(--slate-700)}.hbtn svg{color:var(--slate-400)}.hbtn.primary{background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600;padding:6px 14px}.hbtn.primary:hover{background:var(--brand-500)}.hbtn.primary svg{color:#fff}.hbtn.disabled{opacity:.45;pointer-events:none}#ribbon{flex:none;display:block;padding:0;background:#fff;border-bottom:1px solid var(--slate-200);font-size:12px;z-index:20}.rb-tabs{display:flex;gap:2px;padding:4px 12px 0;background:var(--slate-100);border-bottom:1px solid var(--slate-200);overflow-x:auto}.rb-tab{border:1px solid transparent;border-bottom:none;background:transparent;border-radius:6px 6px 0 0;font-size:12.5px;font-weight:600;color:var(--slate-600);padding:6px 12px;cursor:pointer;white-space:nowrap}.rb-tab:hover{background:#fff;color:var(--slate-800)}.rb-tab.active{background:#fff;color:var(--brand-700);box-shadow:inset 0 -2px 0 var(--brand-600)}.rb-panels{background:#fff}.rb-panel{display:flex;align-items:center;gap:8px;padding:6px 12px;overflow-x:auto}.rb-panel[hidden]{display:none}.rb-panel .hint{font-size:11px;color:var(--slate-400);white-space:nowrap}.tool.danger{color:var(--red-600)}.rb-left{display:flex;align-items:center;gap:12px;min-width:max-content}.seg,.grp{display:flex;gap:2px}.vr-s{width:1px;height:20px;background:var(--slate-200)}.tool{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border:0;border-radius:4px;background:transparent;color:var(--slate-600);font-weight:500;font-size:12px;cursor:pointer;white-space:nowrap;transition:background .12s,color .12s}.tool:hover{background:var(--slate-100);color:var(--slate-900)}.tool.active,.tool.active:hover{background:var(--brand-50);color:var(--brand-700);box-shadow:inset 0 -2px 0 var(--brand-600)}.tool-ul span{text-decoration:underline;text-decoration-color:var(--brand-500);text-underline-offset:2px}.tool-st span{text-decoration:line-through}.rb-right{display:flex;align-items:center;gap:12px;margin-left:auto;flex:none}.field{display:flex;align-items:center;gap:6px;color:var(--slate-500);font-weight:500}.field em{font-style:normal;font-size:10px;color:var(--slate-400)}.field input[type=number]{width:52px;text-align:center;font:500 12px var(--mono);padding:2px 4px;background:#fff;border:1px solid var(--slate-300);border-radius:4px;color:var(--slate-900)}.field input[type=color]{width:22px;height:22px;padding:0;border:1px solid var(--slate-300);border-radius:4px;background:#fff;cursor:pointer}.field select{background:#fff;border:1px solid var(--slate-300);border-radius:4px;font:500 12px var(--font);color:var(--slate-700);cursor:pointer;padding:3px 4px}.field input:focus,.field select:focus{outline:2px solid var(--brand-500);outline-offset:1px}.btn{display:inline-flex;align-items:center;height:32px;padding:0 12px;border:1px solid var(--slate-300);border-radius:4px;background:#fff;color:var(--slate-700);font-weight:500;cursor:pointer}.btn:hover{background:var(--slate-100)}.btn.primary{background:var(--brand-600);border-color:var(--brand-600);color:#fff}.btn.primary:hover{background:var(--brand-500)}#layout{flex:1;display:flex;min-height:0;background:var(--slate-100)}#sidebar{width:256px;flex:none;background:#fff;border-right:1px solid var(--slate-200);display:flex;flex-direction:column;min-height:0}#sidebar[hidden]{display:none}.side-tabs{border-bottom:1px solid var(--slate-200);padding:12px 16px 0}.side-tab{display:inline-block;font-size:12px;font-weight:600;color:var(--brand-600);border-bottom:2px solid var(--brand-600);padding-bottom:10px}.side-actions{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:12px;background:#f8fafcb3;border-bottom:1px solid var(--slate-100)}.sbtn{display:flex;align-items:center;justify-content:center;gap:4px;padding:6px 8px;background:#fff;border:1px solid var(--slate-200);border-radius:4px;color:var(--slate-600);font-size:12px;font-weight:500;cursor:pointer;transition:background .12s,color .12s}.sbtn svg{width:12px;height:12px;color:var(--slate-500)}.sbtn:hover{background:var(--slate-100)}.sbtn.danger:hover{background:#fef2f2;color:var(--red-600)}.sbtn.danger:hover svg{color:var(--red-600)}#thumbs{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:16px}@media print{#appbar,#ribbon,#sidebar,#inspector,#statusbar,dialog,#toast{display:none!important}#layout,#viewer{display:block;overflow:visible}}.thumb{cursor:pointer}.thumb-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px;font-size:11px;font-weight:500;color:var(--slate-500)}.thumb-name{display:inline-flex;align-items:center;gap:6px}.thumb.active .thumb-name{color:var(--brand-600);font-weight:600}.thumb-size{color:var(--slate-400);font-size:11px}.thumb-frame{position:relative;padding:6px;background:#fff;border:1px solid var(--slate-200);border-radius:4px;transition:border-color .12s}.thumb:hover .thumb-frame{border-color:var(--slate-300)}.thumb.active .thumb-frame{border-color:var(--brand-600);box-shadow:0 0 0 1px var(--brand-600)}.thumb-frame img,.thumb-frame canvas{display:block;width:100%;height:auto;background:var(--slate-50);border:1px solid var(--slate-200);border-radius:4px}.side-foot{padding:12px;border-top:1px solid var(--slate-200);background:var(--slate-50)}.add-page{width:100%;display:flex;flex-direction:column;align-items:center;gap:4px;padding:14px 8px;border:1px dashed var(--slate-300);border-radius:4px;background:transparent;color:var(--slate-400);font-size:12px;font-weight:500;cursor:pointer;transition:all .12s}.add-page svg{width:18px;height:18px}.add-page:hover{border-color:var(--brand-400);background:#eef2ff80;color:var(--brand-600)}#viewer{flex:1;overflow:auto;padding:40px 32px;display:flex;flex-direction:column;align-items:center;gap:36px;position:relative;background-color:#eef2f6;background-image:radial-gradient(#cbd5e1 1.1px,transparent 1.1px);background-size:20px 20px}#empty{margin:auto;text-align:center;color:var(--slate-500);background:#fff;padding:24px 32px;border-radius:4px;border:1px solid var(--slate-200)}#empty p{margin:4px 0}#viewer.dragover{outline:2px dashed var(--brand-500);outline-offset:-10px}.page{position:relative;background:#fff;box-shadow:var(--shadow-sheet);border-radius:2px;flex:none}.page img,.page canvas{display:block;width:100%;height:100%;user-select:none;-webkit-user-drag:none;border-radius:2px}.preview{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:1}.pv-erase{position:absolute;background:#fff}.pv-text{position:absolute;white-space:pre;background:#fef3c799;border-radius:1px}.pv-img{position:absolute;object-fit:contain;outline:1px dashed rgba(217,119,6,.7)}.pv-hl{position:absolute;opacity:.55;mix-blend-mode:multiply}.pv-ul{position:absolute;border-bottom:1.5px solid #e53935}.pv-st{position:absolute;--c: #e53935;background:linear-gradient(var(--c),var(--c)) center / 100% 1.5px no-repeat}.pv-rect{position:absolute;border:1.5px solid #e53935}.pv-svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}.pv-mark{position:absolute;background:#fef3c799}.pv-mark svg{width:100%;height:100%;display:block}.layer{position:absolute;inset:0}.layer.crosshair{cursor:crosshair}.hit{position:absolute;cursor:text;border-radius:2px;touch-action:manipulation}.hit:hover{background:#6366f124;outline:1px solid var(--brand-500)}.cell{position:absolute;cursor:cell;outline:1px dashed rgba(99,102,241,.55);touch-action:manipulation}.cell:hover{background:#6366f124;outline:1.5px solid var(--brand-500)}.cbox{position:absolute;cursor:pointer;border-radius:2px;outline:1.5px dashed var(--amber-600);outline-offset:1px;z-index:2;touch-action:manipulation}.cbox.on{outline-style:solid;outline-color:var(--emerald-500)}.cbox:hover{background:#d9770629}.cbox.on:hover{background:#10b98129}.sel-box{position:absolute;z-index:4;pointer-events:none;outline:2px solid var(--brand-600);outline-offset:1px;background:#4f46e514;border-radius:2px}.ghost{position:absolute;z-index:6;pointer-events:none;outline:1.5px dashed var(--brand-600);background:#4f46e52e;border-radius:2px}.drag{position:absolute;border:1.5px solid var(--brand-500);background:#6366f124;pointer-events:none}.inline-input{position:absolute;z-index:5;border:2px solid var(--brand-500);border-radius:3px;background:#fff;padding:0 2px;margin:0;outline:none;font-family:Arial,sans-serif;box-shadow:0 0 0 3px #6366f12e,0 6px 16px #0f172a33}.inline-input.multiline{resize:none;overflow:hidden;line-height:1.2;white-space:pre;padding-top:1px;padding-bottom:1px}.busy{opacity:.6;pointer-events:none}#inspector{width:288px;flex:none;background:#fff;border-left:1px solid var(--slate-200);display:flex;flex-direction:column;min-height:0}.insp-head{display:flex;align-items:baseline;justify-content:space-between;padding:14px;border-bottom:1px solid var(--slate-200)}.insp-title{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--slate-800)}.insp-tool{font-size:12px;color:var(--slate-500)}.insp-body{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:20px;font-size:12px}.insp-body section+section{border-top:1px solid var(--slate-100);padding-top:20px}.insp-body h4{margin:0 0 8px;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--slate-600)}.insp-input{width:100%;height:32px;padding:0 8px;font:500 12px var(--font);color:var(--slate-700);border:1px solid var(--slate-300);border-radius:4px;background:#fff}.insp-input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 1px var(--brand-600)}.insp-note{margin:6px 0 0;font-size:11px;line-height:16px;color:var(--slate-400)}.legend{list-style:none;margin:0;padding:0;display:grid;gap:8px;color:var(--slate-600)}.legend li{display:flex;align-items:center;gap:10px}.sw{width:22px;height:14px;border-radius:2px;flex:none}.sw-hit{background:#6366f124;outline:1px solid var(--brand-500)}.sw-cell{outline:1px dashed rgba(99,102,241,.8)}.sw-empty{outline:1.5px dashed var(--amber-600)}.sw-on{outline:1.5px solid var(--emerald-500)}.sw-pend{background:#fef3c7e6;outline:1px solid #fcd34d}.keys{display:grid;grid-template-columns:auto 1fr;gap:8px 12px;margin:0;align-items:center;color:var(--slate-600)}.keys dt{white-space:nowrap}.keys dd{margin:0}kbd{font:500 11px/16px var(--mono);background:var(--slate-50);border:1px solid var(--slate-300);border-radius:3px;padding:0 4px;color:var(--slate-700)}#statusbar{flex:none;height:28px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 16px;background:#fff;border-top:1px solid var(--slate-200);font-size:12px;color:var(--slate-600)}#status{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pending{display:inline-flex;align-items:center;gap:12px;color:var(--slate-800);font-size:12px;white-space:nowrap}.pending[hidden]{display:none}.link-btn{background:none;border:0;padding:0;color:var(--brand-600);font:500 12px var(--font);cursor:pointer;text-decoration:underline}.link-btn:hover{color:var(--brand-700)}#pageInfo{color:var(--slate-500);font-size:11px}dialog{border:1px solid var(--slate-300);border-radius:4px;padding:16px;box-shadow:0 8px 24px #0f172a40;color:var(--slate-800);font-family:var(--font)}dialog::backdrop{background:#0f172a66}dialog p{margin:0 0 8px;font-weight:600}#sigCanvas{border:1px solid var(--slate-300);border-radius:4px;background:#fff;touch-action:none;cursor:crosshair;display:block}.dlg-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}#toast{position:fixed;bottom:44px;left:50%;transform:translate(-50%);background:var(--slate-900);color:#f8fafc;padding:8px 14px;border-radius:4px;box-shadow:var(--shadow-pop);border:1px solid var(--slate-700);font-size:13px;opacity:0;transition:opacity .2s;pointer-events:none;max-width:80vw;z-index:50}#toast.show{opacity:1}#toast.error{background:#7f1d1d;border-color:#b91c1c}@media(max-width:1279px){#inspector{display:none}#sidebar{width:208px}}@media(max-width:1023px){.app-center{display:none}.app-actions{margin-left:auto}}@media(max-width:767px){.brand-name,.vr{display:none}.doc-name{max-width:18ch}#layout{flex-direction:column}#sidebar{width:auto;border-right:0;border-bottom:1px solid var(--slate-200);max-height:190px}.side-actions{grid-template-columns:repeat(6,1fr)}.sbtn span{display:none}#thumbs{flex-direction:row;overflow-x:auto;overflow-y:hidden;padding:8px 12px}.thumb{width:84px;flex:none}.side-foot{display:none}#viewer{padding:32px 12px 24px}}