#__next,body,html{padding:0;margin:0;height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}*{box-sizing:border-box}.main{max-width:900px;margin:2rem auto;padding:0 1rem}.card{border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:1rem;background:#fff}.btn{background:#111827;color:#fff;padding:.5rem .75rem;border-radius:6px;border:none;cursor:pointer}.btn:disabled{background:#9ca3af;cursor:not-allowed}.icon-btn{background:none;border:none;cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;justify-content:center;color:#6b7280;transition:all .15s ease}.icon-btn:hover{background:#f3f4f6;color:#111827}.icon-btn:active{background:#e5e7eb}.tree-item{border-radius:4px;transition:background-color .15s ease}.tree-item:hover{background-color:#f9fafb}.tree-controls{opacity:0;display:flex;gap:2px;transition:opacity .15s ease}.tree-item:hover .tree-controls{opacity:1}.color-picker{position:relative;display:inline-block}.color-swatch{width:20px;height:20px;border:2px solid #e5e7eb;border-radius:4px;cursor:pointer;background:none;padding:0}.color-swatch:hover{border-color:#9ca3af}.color-picker-dropdown{position:absolute;top:100%;left:0;z-index:50;background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:12px;box-shadow:0 10px 25px rgba(0,0,0,.15);min-width:200px}.color-grid{display:grid;grid-template-columns:repeat(7,1fr);grid-gap:4px;gap:4px;margin-bottom:12px}.color-option{width:24px;height:24px;border:1px solid #e5e7eb;border-radius:4px;cursor:pointer;background:none;padding:0}.color-option:hover{border-color:#374151;box-shadow:0 0 0 2px rgba(59,130,246,.3)}.custom-color-section{display:flex;gap:8px;align-items:center;padding-top:8px;border-top:1px solid #e5e7eb}.custom-color-input{width:40px;height:30px;border:1px solid #d1d5db;border-radius:4px;cursor:pointer}.input{padding:.5rem;border:1px solid #d1d5db;border-radius:6px}.label{display:block;font-weight:600;margin-bottom:.25rem}pre{background:#f9fafb;padding:.75rem;border-radius:6px;overflow:auto}:root{--topbar-h:56px}.wide{min-height:100vh;background:#f3f4f6;color:#111827}.topbar{position:-webkit-sticky;position:sticky;top:0;z-index:20;height:var(--topbar-h);background:#111827;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 16px;box-shadow:0 2px 8px rgba(0,0,0,.15)}.topbar .brand{font-size:1.125rem;margin:0}.topbar a{color:#93c5fd;text-decoration:none}.topbar a:hover{text-decoration:underline}.layout{display:flex;gap:16px;padding:16px}.sidebar{flex:0 0 320px;max-width:360px;overflow:auto;max-height:calc(100vh - var(--topbar-h) - 32px)}.content{flex:1 1 auto;min-width:0}.panel{border:1px solid #e5e7eb;border-radius:10px;background:#fff;display:flex;flex-direction:column;height:calc(100vh - var(--topbar-h) - 32px);overflow:hidden}.panel-title{padding:10px 14px;border-bottom:1px solid #e5e7eb;font-weight:600}.plot-wrap{flex:1 1 auto;min-height:0;padding:8px}