/* Tools-only styles; shared tokens, shell and motion policy retained. */
.tools-shell{max-width:80rem;margin:auto;overflow-wrap:anywhere}.tools-shell *{box-sizing:border-box}.tools-grid{display:grid;grid-template-columns:1fr;gap:1rem}.tools-card{min-width:0;background:var(--surface);border:1px solid var(--border);border-radius:.8rem;padding:clamp(.7rem,2vw,1.5rem)}.tools-shell label{display:flex;flex-direction:column;gap:.4rem;margin:.5rem 0}.tools-shell input,.tools-shell select{width:100%;min-width:0;min-height:44px;font:inherit;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:.5rem;padding:.6rem}.tools-angle{max-width:22rem}.tools-shell button{min-height:44px;min-width:44px;font:inherit;white-space:normal;color:var(--text);background:var(--surface-2);border:1px solid var(--border);padding:.6rem .8rem;border-radius:.5rem;cursor:pointer;margin:.3rem .1rem}.tools-shell :focus-visible{outline:3px solid var(--focus);outline-offset:3px}.tools-shell fieldset{min-width:0;border:1px solid var(--border);border-radius:.5rem}.tools-limits{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem}.tools-shell svg{display:block;width:100%;height:auto;min-height:170px;background:var(--surface);border:1px solid var(--border);border-radius:.5rem}.tools-shell svg text{fill:var(--text);font-size:14px}.tools-gridline{stroke:var(--border);stroke-width:1}.tools-axis{stroke:var(--text);stroke-width:1.8}.tools-curve{stroke:var(--accent);fill:none;stroke-width:2.5}.tools-shell table{width:100%;border-collapse:collapse}.tools-shell th,.tools-shell td{padding:.5rem;text-align:left;border-bottom:1px solid var(--border)}.tools-shell summary{min-height:44px;cursor:pointer;padding:.5rem}.tools-shell details{border:1px solid var(--border);padding:.5rem;border-radius:.5rem;margin:.8rem 0}.tools-shell ol{padding-left:1.5rem}.tools-shell [data-tools-storage]{color:var(--text-muted)}.tools-result{font-weight:700;min-height:1.5rem}.tools-zoom{display:flex;flex-wrap:wrap;gap:.2rem}@media(min-width:1100px){.tools-grid{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}}