/* These rules accompany only the four optical calculator pages. */
main:has(.optics-calculator) .page-head h1{overflow-wrap:anywhere}main:has(.optics-calculator) .breadcrumbs>span:last-child{min-width:0;white-space:normal;overflow-wrap:anywhere}
.optics-calculator{--optics-purple:#6650a6;--optics-soft:#f4f0fb;--optics-teal:#087d72;--optics-line:#ded9e8;color:#253347}.optics-calculator .card-head{padding-bottom:18px;margin-bottom:21px}.optics-calculator .card-head h2{max-width:650px;font-size:1.35rem;line-height:1.25;letter-spacing:-.025em}.optics-calculator .card-head p{max-width:650px;line-height:1.6}.optics-calculator .card-head>div>span{color:var(--optics-purple)}.optics-form{display:block}.optics-calculator input,.optics-calculator select{font-size:1rem;min-width:0;max-width:100%;border-color:#bab3c7}.optics-calculator .field small,.optics-field-note{font-size:.79rem;color:#586477;line-height:1.6}.optics-field-note{margin:0}.optics-calculator input[aria-invalid=true],.optics-calculator select[aria-invalid=true]{border-color:#b12e28;box-shadow:0 0 0 2px #f9e0dc}.optics-slider-wrap{padding:16px 18px 12px;border:1px solid var(--optics-line);border-radius:15px;background:var(--optics-soft)}.optics-slider-wrap label{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.85rem;font-weight:700;line-height:1.45}.optics-slider-wrap output{font-size:1.2rem;font-weight:800;color:var(--optics-purple);white-space:nowrap}.optics-calculator input[type=range]{width:100%;min-height:40px;margin:8px 0 0;padding:0;accent-color:var(--optics-purple);background:transparent;box-shadow:none}.optics-slider-ends{display:flex;justify-content:space-between;gap:10px;font-size:.75rem;color:#586477}.optics-actions{gap:9px;margin-top:20px}.optics-calculator .optics-actions .primary{background:var(--optics-purple);box-shadow:none}.optics-calculator .optics-actions .secondary,.optics-calculator .optics-swap{background:#f0edf7;color:#574484}.optics-swap{margin-bottom:10px;min-height:44px}.optics-swap span{font-size:1.2rem}.optics-live-note{font-size:.73rem;color:#586477;margin:10px 0 0}.optics-error{margin-top:15px;padding:13px 15px;border:1px solid #edb8b2;border-radius:12px;background:#fff4f1;color:#8b2a24;font-size:.84rem;line-height:1.55}.optics-result{margin-top:25px;border:1px solid #d8d1e5;border-radius:18px;overflow:hidden;background:#fcfbfe}.optics-result-head{padding:23px 25px;background:linear-gradient(125deg,#f0eafa,#f4f9f8)}.optics-result-head>span{display:block;font-size:.79rem;font-weight:700;color:#5c5370}.optics-result-head>strong{display:block;margin:7px 0 9px;color:#55418f;font-size:clamp(1.65rem,4.5vw,2.75rem);letter-spacing:-.04em;font-variant-numeric:tabular-nums;line-height:1.2;overflow-wrap:anywhere}.optics-result-head>p{margin:0;font-size:.88rem;line-height:1.65;color:#4b5667}.optics-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:#e6e1ed;border-block:1px solid #e6e1ed}.optics-metric{padding:15px 20px;background:#fff;min-width:0}.optics-metric>span{display:block;color:#626979;font-size:.74rem;line-height:1.5}.optics-metric>strong{display:block;margin-top:4px;font-size:.98rem;color:#263b48;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.optics-figure{margin:0;padding:20px;background:#fff}.optics-figure svg{display:block;width:100%;max-width:450px;height:auto;margin:0 auto;overflow:visible}.optics-figure svg text{font:12px system-ui,sans-serif;fill:#526174}.optics-figure svg .optics-svg-value{font-size:14px;font-weight:700;fill:#263b48}.optics-objective-circle{fill:#eee8f8;stroke:#8771b8;stroke-width:1.5}.optics-pupil-circle{fill:#b9e4dc;stroke:#087d72;stroke-width:1.5}.optics-fov-cone{fill:#efe9f8;stroke:#9e8cbd;stroke-width:1.4}.optics-fov-axis{stroke:#b1a6c5;stroke-dasharray:5 4;stroke-width:1}.optics-dimension{stroke:var(--optics-teal);stroke-width:1.6;fill:none}.optics-figure figcaption{margin-top:8px;color:#626979;font-size:.74rem;line-height:1.6}.optics-result-note{margin:0;padding:15px 20px;border-top:1px solid #e6e1ed;color:#586477;line-height:1.65;font-size:.8rem}.optics-result-empty{margin:0;padding:23px;color:#5d6470;font-size:.85rem;line-height:1.6}.optics-zoom-track{height:12px;position:relative;background:#ece7f4;border-radius:999px;margin:10px 8px 15px}.optics-zoom-track>div{height:100%;background:#9984bf;border-radius:999px}.optics-zoom-track>span{position:absolute;top:50%;width:23px;height:23px;border:4px solid #fff;box-shadow:0 0 0 2px var(--optics-purple);background:var(--optics-purple);border-radius:50%;transform:translate(-50%,-50%)}.optics-examples{border-top:1px solid var(--optics-line);margin-top:24px;padding-top:20px}.optics-examples h3{font-size:1.03rem;line-height:1.3;margin:0 0 5px}.optics-examples-head p{margin:0;font-size:.8rem;line-height:1.6;color:#626979}.optics-example-buttons{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px}.optics-example-buttons button{min-height:44px;padding:10px 13px;border:1px solid #c9bfd8;background:#fff;border-radius:11px;color:#544271;font:inherit;font-size:.78rem;font-weight:700;text-align:left;cursor:pointer;line-height:1.4}.optics-example-buttons button:hover{background:#f5f0fb;border-color:#9f8bbd}.optics-example-buttons button[aria-pressed=true]{background:#f0e8fa;border-color:#8060ad}.optics-example-foot{display:flex;flex-wrap:wrap;align-items:center;gap:9px 16px;margin-top:9px}.optics-example-foot button{border:0;background:transparent;color:#665286;font:inherit;font-size:.76rem;min-height:44px;padding:4px 0;text-decoration:underline;text-underline-offset:3px;cursor:pointer}.optics-example-foot p{flex-basis:100%;margin:0;font-size:.76rem;color:#586477;line-height:1.55}.optics-share{margin-top:15px;padding:14px;border:1px solid var(--optics-line);border-radius:12px;background:#f7f5fb}.optics-share label{display:block;margin-bottom:7px;font-size:.78rem;font-weight:700}.optics-share p{font-size:.75rem;line-height:1.55;color:#586477;margin:8px 0 0}.optics-calculator button:focus-visible{outline:3px solid #9780bd;outline-offset:3px}.optics-calculator [hidden]{display:none!important}.optics-calculator button:disabled{opacity:.6;cursor:default}.optics-calculator input[type=range]:disabled{opacity:.55}.optics-metrics:empty{display:none}
@media(max-width:620px){.optics-calculator{padding:20px 17px}.optics-calculator .card-head h2{font-size:1.2rem}.optics-calculator .form-grid{grid-template-columns:minmax(0,1fr);gap:14px}.optics-slider-wrap{padding:14px}.optics-slider-wrap label{font-size:.8rem}.optics-actions{align-items:stretch;flex-direction:column}.optics-actions button{width:100%}.optics-result-head{padding:21px 18px}.optics-metric{padding:13px 14px}.optics-metric strong{font-size:.9rem}.optics-figure{padding:16px 11px}.optics-result-note{padding:14px 16px}.optics-example-buttons{gap:7px}.optics-example-buttons button{flex:1 1 auto}.optics-figure svg text{font-size:12px}}
@media(prefers-reduced-motion:no-preference){.optics-zoom-track>div{transition:width .12s}.optics-zoom-track>span{transition:left .12s}}
@media print{.optics-form,.optics-examples{display:none}.optics-result{break-inside:avoid}.optics-result-head{background:#fff}.optics-calculator{border:1px solid #999;box-shadow:none}.optics-result-head>strong{color:#111}}