:root{--ink:#1b2638;--muted:#778397;--line:#e7ebf1;--teal:#087f79;--accent:#4ce5ce;--danger:#e36168;--canvas:#121b28}*{box-sizing:border-box}body{margin:0;background:#f6f8fb;color:var(--ink);font:13px -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}header{height:76px;background:white;display:flex;align-items:center;border-bottom:1px solid var(--line);padding:0 24px;gap:32px}.brand{display:flex;gap:12px;align-items:center;font-size:20px;white-space:nowrap}.brand b{font-weight:700}.brand small{display:block;font-size:10px;letter-spacing:.4px;color:var(--muted);margin-top:3px}.brand-icon{display:grid;place-items:center;width:36px;height:36px;background:var(--ink);color:var(--accent);border-radius:9px;font-size:31px}.document{display:flex;flex-direction:column;gap:5px;min-width:0;flex:1}.document strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}.document span{font-size:11px;color:var(--muted)}.header-actions{display:flex;gap:9px}.button{border:1px solid #dce2ea;border-radius:7px;padding:10px 14px;background:#fff;color:var(--ink);font-weight:600;line-height:1.2}.button:hover{background:#eff4f6}.button.primary{background:var(--teal);border-color:var(--teal);color:#fff}.button.primary:hover{background:#066b66}.button.subtle{background:transparent}.button.danger{color:#bb404a;border-color:#f0cdd1}.button.small{padding:8px 10px;font-size:11px}.button:focus-visible,button[data-mode]:focus-visible{outline:2px solid var(--teal);outline-offset:2px}main{height:calc(100dvh - 76px);display:grid;grid-template-columns:172px minmax(0,1fr) 305px}.tools{padding:22px 12px;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;overflow:auto}.tool-label{font-size:9px;color:#8b97a7;letter-spacing:1.3px;margin:0 9px 12px}.tools button{display:flex;align-items:center;gap:9px;border:0;background:transparent;padding:9px;color:#566174;border-radius:7px;text-align:left;font-size:11px;min-height:36px}.tools button:hover{background:#f0f5f7}.tools button.active{background:#e5f3ef;color:#066b66;font-weight:650}.tools i{font-size:21px;width:20px;text-align:center;font-style:normal;line-height:1}.tools kbd{margin-left:auto;font:9px inherit;color:#9da9b4}.tools hr{border:0;border-top:1px solid var(--line);width:calc(100% - 18px);margin:12px 9px}.tools .danger-tool{color:#b75e64}.tool-foot{margin-top:auto;padding:24px 8px 0;font-size:10px;color:#6b798c;line-height:1.8}.tool-foot span{font-size:9px;color:#a6afba}.workspace{background:var(--canvas);position:relative;overflow:hidden;min-width:0;touch-action:none}.canvas-top{position:absolute;left:18px;right:18px;top:16px;display:flex;justify-content:space-between;gap:10px;z-index:2;pointer-events:none}.canvas-top>*{pointer-events:auto}.view-control,.view-actions{display:flex;align-items:center;gap:2px;border:1px solid #344052;background:#1d2939d9;border-radius:6px;color:#c6d1df}.view-control select{background:none;color:#f4f7fc;border:0;padding:8px;max-width:160px;outline:none}.view-control option{background:#1d2939}.view-control span{font-size:10px;padding:0 10px;border-left:1px solid #3a4657}.view-actions button{background:none;border:0;color:#c6d1df;width:32px;height:31px;font-size:19px}.view-actions button:hover{background:#344154}.canvas-bottom{display:flex;justify-content:space-between;gap:8px;position:absolute;bottom:0;left:0;right:0;background:#162231e8;border-top:1px solid #2a3647;padding:9px 14px;font:10px ui-monospace,monospace;color:#899bb0;pointer-events:none}#canvas{display:block;width:100%;height:100%;touch-action:none}.legend{position:absolute;left:18px;bottom:52px;display:flex;gap:16px;font-size:9px;color:#a4b1c2;pointer-events:none}.legend span{display:flex;align-items:center;gap:5px}.legend i{width:6px;height:6px;border-radius:50%;background:#9cacc2}.legend .new-dot{background:var(--accent)}.legend .delete-dot{background:var(--danger)}.mode-banner{position:absolute;bottom:88px;left:50%;transform:translateX(-50%);max-width:85%;background:#293749e8;color:#ecf4fd;border:1px solid #4a5d73;border-radius:8px;padding:9px 14px;font-size:11px;pointer-events:none}.empty{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:90%;text-align:center;color:white}.empty-symbol{font-size:58px;color:#4ce5ce}.empty h1{font-size:22px;font-weight:550;margin-top:12px}.empty p{font-size:12px;color:#91a1b5;line-height:1.8;margin-bottom:22px}.empty small{display:block;font-size:9px;letter-spacing:.4px;color:#687d95;margin-top:25px}.inspector{background:white;border-left:1px solid var(--line);padding:20px;overflow-y:auto}.inspector-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}h2{font-size:16px;margin:0}h3{font-size:11px;font-weight:650;margin:0 0 13px}.pill{font-size:9px;border:1px solid #d4e4de;padding:4px 7px;border-radius:4px;color:var(--teal);letter-spacing:.5px}label{display:block;font-size:10px;color:#738196;margin-bottom:11px}input,select,textarea{color:var(--ink);border:1px solid #dce3ec;background:#fafbfc;border-radius:5px;padding:8px;width:100%;outline:none}label>input,label>select{margin-top:6px}input:focus,select:focus,textarea:focus{border-color:var(--teal)}input[type=checkbox]{width:13px;height:13px;margin:0;accent-color:var(--teal)}.check{display:flex;align-items:center;gap:8px;font-size:11px;color:#566174;margin:11px 0}.two-columns{display:grid;grid-template-columns:1fr 1fr;gap:10px}.hint{font-size:10px;line-height:1.7;color:#8a95a7;margin:10px 0}.settings{padding-bottom:18px;border-bottom:1px solid var(--line)}.changes{padding:20px 0;border-bottom:1px solid var(--line)}.section-title{display:flex;justify-content:space-between}.section-title span,summary span{background:#eef3f5;color:#56777a;padding:1px 6px;font-size:9px;border-radius:4px}.change-list{max-height:220px;overflow:auto}.change-card{padding:11px;background:#eff9f5;border:1px solid #d7eee5;border-radius:6px;margin:8px 0;font-size:11px}.change-card.red{background:#fff4f5;border-color:#f4dbe0}.change-card small{display:block;color:#6a8a82;font-size:9px;margin-top:5px;line-height:1.5}.change-card button{float:right;background:none;border:0;color:#78908b;padding:0 1px}.change-buttons{display:flex;gap:8px;margin-top:14px}.change-buttons .primary{flex:1;font-size:11px}.change-buttons .subtle{font-size:11px}details{padding:16px 0;border-bottom:1px solid var(--line)}summary{font-size:11px;font-weight:600;cursor:pointer;list-style:none;display:flex;gap:8px;align-items:center}summary:before{content:'›';font-size:17px;color:#90a0b2;width:10px}details[open]>summary:before{transform:rotate(90deg)}details[open]>summary{margin-bottom:14px}#plan-json{font:10px ui-monospace,monospace;height:150px;resize:vertical;margin-bottom:6px}#instruction{height:85px;font-size:11px;resize:vertical;margin-bottom:8px}#selection-info{word-break:break-word}.object-info{padding:8px 0;border-bottom:1px solid var(--line);font-size:10px}.object-info strong{display:block;font-size:11px;color:#324558}.object-info span{color:#8391a4;line-height:1.8}.object-info .xref{color:#ba7d25}#selection-actions .button{margin-bottom:8px;width:100%}.layer-row{display:flex;align-items:center;gap:7px;padding:7px 0;font-size:10px;border-bottom:1px solid #f3f5f8}.layer-row .layer-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.layer-row small{font-size:8px;color:#9ba6b5}.layer-row button{background:none;border:0;padding:0 5px;color:#8b99a9}#layers{max-height:270px;overflow:auto;margin-top:10px}.alerts:empty{display:none}.alert{border:1px solid #efdeb9;background:#fff9eb;color:#957135;border-radius:6px;padding:10px;font-size:10px;line-height:1.7;margin-bottom:14px}.alert summary{font-size:10px;color:#957135}.history-entry{font-size:10px;color:#778598;padding:8px;border-left:2px solid #d4ece3;margin-top:8px}.busy{position:absolute;inset:0;background:#121b28b0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:#d7e5f4;font-size:12px;z-index:10}.spinner{width:30px;height:30px;border:2px solid #466375;border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}[hidden]{display:none!important}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#27364b;color:white;padding:13px 18px;border-radius:8px;z-index:50;font-size:12px;max-width:85%;line-height:1.5;box-shadow:0 6px 30px #0003}#toast.error{background:#9c3945}dialog{border:1px solid #e4e9ef;border-radius:12px;padding:28px;max-width:430px;width:90%;color:var(--ink);box-shadow:0 20px 70px #15233840}dialog::backdrop{background:#101c2b80}dialog h2{font-size:18px;margin-bottom:12px}dialog p{font-size:12px;color:#7c8a9b;line-height:1.7}.dialog-close{float:right;margin:-14px -12px 0 0;border:0;background:none;font-size:22px;color:#8795a9}.export-options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0}.project-item{width:100%;text-align:left;border:1px solid var(--line);background:#fafcfd;padding:14px;border-radius:7px;margin-top:9px}.project-item span{display:block;color:#8b98a7;font-size:10px;margin-top:5px}@media(max-width:1150px){main{grid-template-columns:60px minmax(0,1fr) 285px}.tools{padding:16px 8px}.tool-label,.tools span,.tools kbd,.tool-foot{display:none}.tools button{justify-content:center;padding:10px}.tools i{font-size:23px}.tools hr{width:30px;margin:10px auto}.inspector{padding:18px}header{padding:0 16px;gap:20px}.brand{font-size:17px}.brand small{font-size:9px}}@media(max-width:760px){header{height:64px;gap:12px;padding:0 10px}.brand small,.header-actions span{display:none}.brand{font-size:14px;gap:6px}.brand-icon{width:28px;height:28px;font-size:24px}.document span{font-size:8px}.document strong{font-size:11px}.header-actions{gap:5px}.header-actions .button{padding:9px;font-size:11px}main{height:calc(100dvh - 64px);grid-template-columns:48px minmax(0,1fr);grid-template-rows:minmax(220px,1fr) 230px}.tools{grid-row:1/3;padding:10px 4px}.tools button{padding:8px}.tools i{font-size:21px}.inspector{grid-column:2;display:block;border-top:1px solid var(--line);padding:14px;overflow:auto}.inspector-head{display:none}.changes{padding:0 0 12px}.change-list{max-height:90px}.canvas-top{left:10px;right:10px;top:10px}.view-control span{display:none}.view-actions button{width:26px}.legend{font-size:8px;gap:9px;left:10px;bottom:42px}.canvas-bottom{font-size:8px;padding:8px}.empty h1{font-size:17px}.empty p{font-size:10px}.empty-symbol{font-size:40px}.empty small{display:none}.mode-banner{bottom:68px;font-size:10px}.selection-panel{padding:12px 0}}