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solid var(--border);color:var(--text);padding:.5rem 1rem;border-radius:var(--radius);font-family:inherit;font-size:.9rem;cursor:pointer;transition:border-color .15s,background .15s}.share-btn:hover{border-color:#fff6;background:#ffffff0d}.share-toast{font-size:.8rem;color:#0c8;opacity:0;transition:opacity .3s;pointer-events:none}.share-toast.visible{opacity:1}.tools-group{gap:.5rem;border-left:1px solid var(--border);border-right:1px solid var(--border);padding:0 1.25rem}.preset-select{-webkit-appearance:none;appearance:none;background:var(--surface);border:1px solid var(--border);color:var(--text);padding:.45rem 2rem .45rem .75rem;border-radius:var(--radius);font-family:inherit;font-size:.9rem;cursor:pointer;outline:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 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