:root{--bg: #0c0e12;--panel: #14171d;--panel-2: #10141b;--border: #232936;--border-soft: #1b212c;--text: #e8eaef;--muted: #8b93a3;--faint: #5d6575;--accent: #5b8cff;--accent-soft: rgba(91, 140, 255, .14);--green: #5fc7a6;--green-soft: rgba(95, 199, 166, .12);--amber: #e3a857;--red: #e06c6c;--red-soft: rgba(224, 108, 108, .12);--mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;--sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:var(--sans);font-size:14px;-webkit-font-smoothing:antialiased}.app{height:100%;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 16px;height:52px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,#161a21,#12151b);flex:none}.brand{display:flex;align-items:center;gap:10px;min-width:0}.brand-mark{width:18px;height:18px;border-radius:5px;background:linear-gradient(135deg,var(--accent),var(--green));box-shadow:0 0 14px #5b8cff73;flex:none}.brand-name{font-weight:650;font-size:14.5px;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.phase-chip{font-size:11px;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:3px 10px;white-space:nowrap;background:var(--panel-2)}.topbar-meta{display:flex;align-items:center;gap:8px;flex:none}.topbar-actions{display:flex;gap:4px;margin-right:4px}.icon-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:1px solid var(--border);border-radius:6px;background:var(--panel-2);color:var(--muted);font-size:14px;cursor:pointer;transition:background .15s,color .15s,border-color .15s}.icon-btn:hover:not(:disabled){background:var(--panel);color:var(--fg);border-color:var(--fg)}.icon-btn:disabled{opacity:.35;cursor:not-allowed}.save-btn.dirty{color:var(--green);border-color:#5fc7a666;background:var(--green-soft)}.chip-dirty{color:#e0a850;border-color:#e0a85059;background:#e0a85014}.brand-back{background:none;border:none;padding:0;cursor:pointer;display:flex;align-items:center}.chip{font-size:11px;font-family:var(--mono);color:var(--muted);border:1px solid var(--border);border-radius:6px;padding:3px 8px;background:var(--panel-2)}.chip-accent{color:var(--green);border-color:#5fc7a659;background:var(--green-soft)}.workspace{flex:1;display:grid;grid-template-columns:minmax(320px,380px) 1fr 1fr;gap:10px;padding:10px;min-height:0}.panel{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--panel);border:1px solid var(--border);border-radius:10px;overflow:hidden}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;border-bottom:1px solid var(--border-soft);flex:none}.panel-head h2{margin:0;font-size:11px;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}.panel-tag{font-size:10.5px;color:var(--faint);font-family:var(--mono)}.json-panel{display:flex;flex-direction:column;flex:1;min-height:0}.json-editor{flex:1;min-height:0;resize:none;border:none;outline:none;padding:12px 14px;background:var(--panel-2);color:#c9d2e0;font-family:var(--mono);font-size:12px;line-height:1.55;-moz-tab-size:2;tab-size:2}.json-editor:focus-visible{box-shadow:inset 0 0 0 1.5px var(--accent)}.json-status{flex:none;max-height:180px;overflow-y:auto;padding:8px 12px;font-size:12px;border-top:1px solid var(--border-soft);color:var(--muted)}.json-status.tone-ok{color:var(--green);background:var(--green-soft)}.json-status.tone-error{color:var(--red);background:var(--red-soft)}.issue-list{margin:6px 0 0;padding-left:18px;color:var(--text)}.issue-list li{margin-bottom:3px;font-size:11.5px}.issue-list code{font-family:var(--mono);font-size:10.5px;color:var(--red);background:#e06c6c1f;border-radius:4px;padding:1px 5px;margin-right:6px}.json-actions{display:flex;align-items:center;gap:8px;padding:10px 12px;border-top:1px solid var(--border-soft);flex:none}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:var(--panel-2);color:var(--text);font-family:var(--sans);font-size:12.5px;font-weight:550;border-radius:7px;padding:7px 13px;cursor:pointer;transition:border-color .12s,background .12s,opacity .12s}.btn:hover:not(:disabled){border-color:var(--faint)}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.btn:disabled{opacity:.45;cursor:default}.btn-primary{background:var(--accent);border-color:var(--accent);color:#0b1020}.btn-primary:hover:not(:disabled){background:#6f9aff;border-color:#6f9aff}.btn kbd{font-family:var(--mono);font-size:10px;opacity:.7;margin-left:6px}.dirty-dot{width:8px;height:8px;border-radius:50%;background:var(--amber);margin-left:auto;box-shadow:0 0 8px #e3a85799}.project-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0d14e0;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:grid;place-items:center;z-index:500}.project-modal{width:460px;max-width:calc(100vw - 32px);background:var(--panel);border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:0 24px 64px #0009}.project-modal-header{padding:18px 20px 14px;border-bottom:1px solid var(--border)}.project-modal-body{padding:16px 20px 20px;display:flex;flex-direction:column;gap:12px}.project-modal-loading,.project-modal-error{align-items:center;text-align:center;color:var(--muted);gap:14px;padding:28px 20px}.project-modal-section-head{font-size:11px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;justify-content:space-between}.project-modal-empty{color:var(--faint);font-size:13px;text-align:center;padding:20px 0}.project-modal-offline{text-align:center;padding-top:4px}.project-modal-error-inline{font-size:12px;color:#e07070;margin:0}.project-modal-actions{display:flex;gap:8px}.project-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px;max-height:300px;overflow-y:auto}.project-item{width:100%;display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--panel-2);cursor:pointer;text-align:left;transition:background .12s,border-color .12s}.project-item:hover:not(:disabled){background:var(--panel);border-color:var(--green)}.project-item:disabled{opacity:.6;cursor:not-allowed}.project-item-name{flex:1;font-size:13px;font-weight:500;color:var(--fg);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.project-item-date{font-size:11px;font-family:var(--mono);color:var(--faint);flex:none}.project-name-input{padding:9px 12px;border:1px solid var(--border);border-radius:7px;background:var(--panel-2);color:var(--fg);font-size:14px;outline:none;transition:border-color .12s}.project-name-input:focus{border-color:var(--green)}.btn{padding:8px 16px;border:1px solid var(--border);border-radius:7px;background:var(--panel-2);color:var(--fg);font-size:13px;font-family:var(--sans);cursor:pointer;transition:background .12s,border-color .12s}.btn:hover:not(:disabled){background:var(--panel);border-color:var(--muted)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--green-soft);color:var(--green);border-color:#5fc7a666}.btn-primary:hover:not(:disabled){background:#5fc7a633;border-color:var(--green)}.btn-sm{padding:4px 10px;font-size:12px}.btn-link{background:none;border:none;color:var(--faint);font-size:12px;cursor:pointer;text-decoration:underline;font-family:var(--sans)}.btn-link:hover{color:var(--muted)}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--green);border-radius:50%;animation:spin .7s linear infinite;flex:none}.spinner-sm{width:14px;height:14px;border-width:1.5px}@keyframes spin{to{transform:rotate(360deg)}}.plan-canvas-wrap{flex:1;display:flex;flex-direction:row;min-height:0;overflow:hidden}.canvas-toolbar{display:flex;flex-direction:column;gap:4px;padding:8px 6px;background:var(--panel-2);border-right:1px solid var(--border);flex:none;z-index:1}.toolbar-divider{height:1px;background:var(--border);margin:2px 0}.tool-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;width:36px;height:36px;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--muted);cursor:pointer;transition:background .12s,color .12s,border-color .12s;padding:0}.tool-btn:hover{background:var(--panel);color:var(--fg);border-color:var(--border)}.tool-btn.active{background:var(--green-soft);color:var(--green);border-color:#5fc7a666}.tool-icon{font-size:13px;line-height:1}.tool-key{font-size:9px;font-family:var(--mono);line-height:1;opacity:.7}.plan-surface{position:relative;flex:1;min-height:0;background-color:#10141b;background-image:radial-gradient(circle,#1e2430 1px,transparent 1px);background-size:22px 22px;background-position:11px 11px}.plan-surface canvas{position:absolute;top:0;right:0;bottom:0;left:0}.viewport-surface{position:relative;flex:1;min-height:0;background:#101319}.viewport-surface canvas{display:block}.empty-hint{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;color:var(--faint);font-size:13px;pointer-events:none}.panel-tabs{gap:0;padding:0}.tab-btn{padding:0 14px;height:100%;border:none;background:transparent;color:var(--muted);font-size:12px;font-family:var(--sans);cursor:pointer;border-bottom:2px solid transparent;transition:color .12s,border-color .12s}.tab-btn:hover{color:var(--fg)}.tab-btn.active{color:var(--fg);border-bottom-color:var(--green)}.tab-spacer{flex:1}.properties-panel{display:flex;flex-direction:column;padding:10px 12px;gap:6px;overflow-y:auto;flex:1;min-height:0}.properties-empty{justify-content:center;align-items:center;color:var(--faint);font-size:12px;text-align:center}.prop-section-head{font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:6px;padding-bottom:4px;border-bottom:1px solid var(--border)}.prop-section-head:first-child{margin-top:0}.prop-field,.prop-row{display:flex;align-items:center;gap:8px}.prop-label{flex:none;width:64px;font-size:11px;color:var(--muted);text-align:right}.prop-value{font-size:12px;font-family:var(--mono);color:var(--fg)}.prop-value-mono{font-size:10px;font-family:var(--mono);color:var(--faint);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.prop-input-wrap{flex:1;display:flex;align-items:center;gap:4px;min-width:0}.prop-input{flex:1;min-width:0;padding:4px 6px;border:1px solid var(--border);border-radius:5px;background:var(--panel-2);color:var(--fg);font-size:12px;font-family:var(--mono);outline:none;transition:border-color .12s}.prop-input:focus{border-color:var(--green)}.prop-input-text{flex:1;min-width:0}.prop-select{flex:1;padding:4px 6px;border:1px solid var(--border);border-radius:5px;background:var(--panel-2);color:var(--fg);font-size:12px;outline:none;cursor:pointer;transition:border-color .12s}.prop-select:focus{border-color:var(--green)}.prop-unit{font-size:10px;font-family:var(--mono);color:var(--faint);flex:none}.statusbar{flex:none;display:flex;align-items:center;justify-content:space-between;gap:16px;height:32px;padding:0 14px;border-top:1px solid var(--border);background:var(--panel-2);color:var(--faint);font-size:11.5px}.statusbar-right{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.toast-container{position:fixed;bottom:48px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:6px;z-index:1000;pointer-events:none}.toast{padding:8px 16px;border-radius:8px;font-size:13px;font-weight:500;border:1px solid transparent;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);animation:toast-in .18s ease-out,toast-out .18s ease-in 2.82s forwards;white-space:nowrap}.toast-success{background:#153026eb;border-color:#5fc7a680;color:#5fc7a6}.toast-error{background:#341818eb;border-color:#dc505080;color:#e07070}.toast-info{background:#161c2aeb;border-color:var(--border);color:var(--muted)}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes toast-out{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-6px)}}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}