:root{--bg:#0f1115;--panel:#1a1d23;--panel-2:#14171c;--border:#2d3038;--text:#e6e8eb;--muted:#8b8f99;--accent:#ff9a3c;--accent-2:#5b8def;--error:#ff5d6c}*{box-sizing:border-box}html,body,#root{background:var(--bg);height:100%;color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.app{flex-direction:column;height:100vh;display:flex}header{border-bottom:1px solid var(--border);background:var(--panel);align-items:baseline;gap:12px;padding:12px 20px;display:flex}header h1{letter-spacing:-.02em;margin:0;font-size:20px;font-weight:600}.subtitle{color:var(--muted);font-size:13px}.header-right{align-items:center;gap:12px;margin-left:auto;display:flex}.model-picker{color:var(--muted);align-items:center;gap:8px;font-size:12px;display:inline-flex}.model-picker select{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;outline:none;padding:5px 8px;font-family:inherit;font-size:12px}.msg-plan{color:var(--muted);font-size:12px}.msg-plan summary{cursor:pointer;-webkit-user-select:none;user-select:none;padding:2px 0}.msg-plan pre{background:var(--bg);border:1px solid var(--border);white-space:pre-wrap;color:var(--text);border-radius:6px;margin:6px 0 0;padding:8px 10px;font-family:inherit;font-size:12px;line-height:1.45}main{flex:1;min-height:0;display:flex}.panel-group{flex:1;width:100%;min-height:0;display:flex}.resize-handle{background:var(--border);cursor:col-resize;width:6px;transition:background .15s;position:relative}.resize-handle:hover,.resize-handle[data-resize-handle-active]{background:var(--accent-2)}.resize-handle:after{content:"";background:var(--muted);opacity:.4;border-radius:1px;width:2px;height:32px;transition:opacity .15s;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.resize-handle:hover:after{opacity:.8}.pane-header{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);border-bottom:1px solid var(--border);background:var(--panel);padding:8px 14px;font-size:11px}.chat-pane{background:var(--panel-2);flex-direction:column;height:100%;min-height:0;display:flex}.chat-list{flex-direction:column;flex:1;gap:12px;padding:16px;display:flex;overflow-y:auto}.empty{color:var(--muted);padding:24px 8px;font-size:14px}.empty ul{margin:12px 0 0;padding:0;list-style:none}.empty li{padding:6px 0;font-style:italic}.msg{flex-direction:column;gap:4px;display:flex}.msg-role{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-size:11px}.msg-text{background:var(--panel);white-space:pre-wrap;border-radius:8px;padding:10px 12px;font-size:14px;line-height:1.45}.msg-user .msg-text{background:var(--accent-2);color:#fff;align-self:flex-end}.msg-user{align-items:flex-end}.msg-error .msg-text{color:var(--error);background:#ff5d6c26}.dots{gap:4px;display:inline-flex}.dots span{background:var(--muted);border-radius:50%;width:6px;height:6px;animation:1.2s infinite bounce}.dots span:nth-child(2){animation-delay:.15s}.dots span:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,60%,to{opacity:.5;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}.chat-input{border-top:1px solid var(--border);background:var(--panel);flex-direction:column;gap:8px;padding:12px;display:flex}.chat-input-row{align-items:flex-end;gap:8px;display:flex}.attach-btn{background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:6px 10px;font-size:18px;line-height:1}.attach-btn:hover:not(:disabled){border-color:var(--accent-2);background:var(--panel)}.attachment{border:1px solid var(--border);border-radius:8px;align-self:flex-start;max-width:140px;display:inline-block;position:relative;overflow:hidden}.attachment img{object-fit:cover;width:100%;height:auto;max-height:100px;display:block}.attachment-remove{color:#fff;cursor:pointer;background:#0009;border:none;border-radius:50%;width:20px;height:20px;padding:0;font-size:14px;line-height:1;position:absolute;top:4px;right:4px}.attachment-remove:hover{background:var(--error)}.drag-over{outline:2px dashed var(--accent);outline-offset:-8px;background:#ff9a3c0d}.empty-hint{color:var(--muted);margin-top:18px;font-size:12px}.chat-input textarea{background:var(--bg);color:var(--text);border:1px solid var(--border);resize:none;border-radius:6px;outline:none;flex:1;padding:8px 10px;font-family:inherit;font-size:14px}.chat-input textarea:focus{border-color:var(--accent-2)}.code-pane{flex-direction:column;height:100%;min-height:0;display:flex}.code-pane textarea{background:var(--bg);color:var(--text);resize:none;tab-size:2;border:none;outline:none;flex:1;padding:16px;font-family:SF Mono,Monaco,Consolas,monospace;font-size:13px;line-height:1.5}.actions{border-top:1px solid var(--border);background:var(--panel);gap:8px;padding:12px;display:flex}button{background:var(--panel);color:var(--text);border:1px solid var(--border);cursor:pointer;border-radius:6px;padding:8px 16px;font-family:inherit;font-size:13px;font-weight:500}button:hover:not(:disabled){background:var(--border)}button.primary{background:var(--accent);color:#1a1d23;border-color:var(--accent)}button.primary:hover:not(:disabled){filter:brightness(1.1)}button:disabled{opacity:.5;cursor:not-allowed}.error{white-space:pre-wrap;border-top:1px solid var(--border);max-height:180px;color:var(--error);background:#ff5d6c14;margin:0;padding:12px 16px;font-family:SF Mono,Monaco,Consolas,monospace;font-size:12px;line-height:1.5;overflow:auto}.preview-pane{flex-direction:column;height:100%;min-height:0;display:flex}.canvas-wrap{flex:1;min-height:0;position:relative}.overlay{color:var(--accent);border:2px solid var(--accent);letter-spacing:.02em;pointer-events:none;background:#1a1d23eb;border-radius:10px;align-items:center;gap:12px;padding:16px 24px;font-size:18px;font-weight:600;display:inline-flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 8px 32px #00000080,0 0 24px #ff9a3c40}.spinner{border:2.5px solid #ff9a3c40;border-top-color:var(--accent);border-radius:50%;width:18px;height:18px;animation:.8s linear infinite spin}.render-stats{border:1px solid var(--border);color:var(--muted);pointer-events:none;background:#1a1d23d9;border-radius:6px;padding:4px 10px;font-family:SF Mono,Monaco,Consolas,monospace;font-size:11px;position:absolute;bottom:12px;right:12px}@keyframes spin{to{transform:rotate(360deg)}}.gallery-pane{background:var(--panel-2);flex-direction:column;height:100%;min-height:0;display:flex}.gallery-header{border-bottom:1px solid var(--border);background:var(--panel);color:var(--text);text-transform:uppercase;letter-spacing:.06em;justify-content:space-between;align-items:center;padding:12px 16px;font-size:13px;font-weight:600;display:flex}.icon-btn{color:var(--muted);cursor:pointer;background:0 0;border:none;padding:0 6px;font-size:22px;line-height:1}.icon-btn:hover{color:var(--text)}.gallery-empty{color:var(--muted);text-align:center;padding:32px 24px;font-size:14px}.gallery-grid{flex:1;grid-template-columns:repeat(2,1fr);align-content:start;gap:10px;padding:12px;display:grid;overflow-y:auto}.gallery-card{background:var(--panel);border:1px solid var(--border);cursor:pointer;text-align:left;color:var(--text);border-radius:8px;flex-direction:column;padding:0;font-family:inherit;display:flex;position:relative;overflow:hidden}.gallery-card:hover{border-color:var(--accent-2)}.gallery-card.current{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.gallery-thumb{aspect-ratio:1;background:var(--bg);justify-content:center;align-items:center;width:100%;display:flex;overflow:hidden}.gallery-thumb img{object-fit:cover;width:100%;height:100%}.gallery-thumb-empty{color:var(--muted);font-size:11px}.gallery-meta{border-top:1px solid var(--border);padding:8px 10px;font-size:12px}.gallery-title{text-overflow:ellipsis;white-space:nowrap;font-weight:500;overflow:hidden}.gallery-date{color:var(--muted);margin-top:2px;font-size:11px}.gallery-delete{color:#fff;opacity:0;background:#00000080;border-radius:50%;justify-content:center;align-items:center;width:22px;height:22px;font-size:16px;transition:opacity .15s;display:flex;position:absolute;top:4px;right:4px}.gallery-card:hover .gallery-delete{opacity:1}.gallery-delete:hover{background:var(--error)}