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/* Operator gate panel layout and controls. */
.op-root .op-green{background:#f9f6fd;border-color:#dacde6}.op-root .op-green strong{color:#4b0082}
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.op-answer{background:#f9f6fd;border-color:#dacde6}.op-answer>span{color:#4b0082}
.op-resolvent-intro{margin:16px 0;padding:15px;border-left:3px solid #147ed2;background:#f6faff}.op-resolvent-intro p{margin-bottom:0}
.op-radius-key{display:flex;gap:14px;flex-wrap:wrap;margin:14px 0;font-size:.9rem}.op-radius-key>span{flex:1;min-width:240px}.op-radius-key i{display:inline-block;width:22px;border-top:3px dashed #4b0082;vertical-align:middle;margin-right:7px}.op-radius-key .slack{border-color:#00ff00;border-top-style:dotted}
.op-radial-comparison{display:grid;grid-template-columns:220px minmax(0,1fr);gap:20px;align-items:center}.op-radial-gauge{width:100%;max-height:220px}.op-radial-gauge text{font:13px system-ui;fill:#4b0082}.op-gauge-control{max-width:460px}
@container(max-width:600px){.op-radial-comparison{grid-template-columns:1fr}.op-radial-gauge{max-width:220px;justify-self:center}}

/* Reference-style special directions and linked three-stage certificate. */
.op-special{margin:14px 0;border:1px solid #dacde6;border-radius:10px;background:#f7fbff;padding:14px}.op-special>h3{color:#4b0082}.op-special svg{display:block;width:100%;height:auto;max-height:330px}.op-special p{margin:8px 0}.op-stages-wrap{margin-top:18px;padding:14px;border:1px solid #dacde6;background:#f7fbff;border-radius:10px}.op-stages-wrap>h3{color:#4b0082}.op-stages{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:14px 0}.op-stage{border:1px solid #dacde6;border-radius:8px;background:white;overflow:hidden;padding:10px}.op-stage h3{background:#f9f6fd;color:#4b0082;padding:8px;font-size:.88rem;text-align:center;min-height:3em}.op-stage svg{width:100%;height:auto;display:block}.op-stage p{text-align:center;line-height:1.4}.op-stage strong{display:block;font-variant-numeric:tabular-nums}.op-stage-radius{color:#4b0082}.op-stage-error{color:#666}.op-stage-conclusion{background:#f9f6fd;border-radius:6px;padding:12px;line-height:1.8}.op-stages-wrap .enc-range{max-width:460px}.op-special .op-caption,.op-stages-wrap .op-caption{font-size:.85rem}html[data-display="4k"] .op-stage h3{font-size:15px}html[data-display="4k"] .op-stage p{font-size:14px}@media(max-width:650px){.op-stages{grid-template-columns:1fr}.op-stage svg{max-height:230px}}

.display-board .op-root>.op-stages-wrap{grid-column:1/-1}.op-stages-wrap .op-stage svg{max-height:260px!important}.op-stages-wrap .op-stage h3{min-height:0}.op-special svg{min-height:220px}

/* Output views: two rows, one column. */
.op-root .op-output-grid{grid-template-columns:minmax(0,1fr)}

/* Reference palette, shared by the Step 11 balls, ellipses, and gauges. */
.op-legend .base{background:#1e90ff15;border-color:#1765bf}
.op-legend .changed{background:transparent;border-color:#1e90ff;border-style:dashed}
.op-legend .safe{background:#80808012;border-color:#808080;border-style:dashed}
.op-legend .uncertain{background:#ff149324;border-color:#ff1493;border-style:solid}
.op-stage-error{color:#ff1493}.op-radius-key i{border-color:#808080}.op-radius-key .slack{border-color:#00ff00}.op-stage-radius{color:#808080}
.op-gauge{background:#80808012;border-color:#808080}.op-gauge-used{background:repeating-linear-gradient(135deg,#ff1493,#ff1493 9px,#ff8ac9 9px,#ff8ac9 12px)}.op-gauge-labels span:first-child{color:#ff1493}.op-gauge-labels span:last-child{color:#808080}
.op-root canvas[data-op-output],.op-radial-gauge,.step-eleven .res-mini>svg{background:white}

/* Three argument steps with a miniature beside each explanation. */
.res-proof-step{display:grid;grid-template-columns:minmax(0,1fr) minmax(285px,360px);gap:28px;align-items:start;padding:24px 0;border-top:1px solid #e3d9ed}.res-proof-step>div{min-width:0}.res-proof-step h3{margin-top:0;color:#4b0082}.res-mini{margin:0;padding:16px;border:1px solid #dacde6;border-radius:9px;background:#f7fbff;min-width:0}.res-mini h4{font-size:1rem;line-height:1.4;margin:0 0 12px;color:#4b0082}.res-mini>svg{display:block;width:100%;height:auto;max-height:280px}.res-mini figcaption{font-size:.875rem;line-height:1.6;overflow-wrap:anywhere}.res-mini figcaption p{font-size:.875rem;line-height:1.6;margin-bottom:0}.res-mini figcaption>.site-math{display:block;font-size:.78rem;overflow-x:auto}.res-proof .enc-equation{overflow-x:auto}html[data-display="4k"] .res-proof-step{grid-template-columns:minmax(0,1fr) minmax(320px,26%)}@media(max-width:850px){.res-proof-step,html[data-display="4k"] .res-proof-step{grid-template-columns:minmax(0,1fr)}.res-mini{max-width:440px;width:100%;box-sizing:border-box;justify-self:center}}
.step-eleven #panel-argument .enc-argument{width:100%;max-width:none;box-sizing:border-box}html[data-display="4k"] .res-proof-step{grid-template-columns:minmax(0,1fr) minmax(320px,22rem)}@media(max-width:850px){html[data-display="4k"] .res-proof-step{grid-template-columns:minmax(0,1fr)}}

/* Pair each output-ball and factorization line with its own geometry. */
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.op-proof-line{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,22rem);gap:28px;align-items:center;padding:18px 0;border-bottom:1px solid #eee8f3}.op-proof-line:last-child{border-bottom:0}.op-proof-line>div{min-width:0}.op-proof-line .enc-equation{margin:10px 0}.op-proof-line p{line-height:1.75}.op-line-mini>svg{max-height:none}.op-line-mini figcaption>.site-math{display:block;font-size:.78rem;overflow-x:auto}.op-line-mini figcaption p{margin-top:8px}
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.arg11-expanded{color:#4b0082}.arg11-expanded h2,.arg11-expanded h3,.arg11-expanded h4,.arg11-expanded p,.arg11-expanded figcaption{color:#4b0082}.arg11-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(350px,38%);gap:28px;border-top:1px solid #dad4ec;padding:26px 0;align-items:start}.arg11-row>div,.arg11-row>aside{min-width:0}.arg11-row h3{margin-top:0}.arg11-expanded .enc-equation{overflow-x:auto}.arg11-figure{margin:0;padding:15px;border:1px solid #d8cdec;border-radius:8px;background:#fcfcff}.arg11-figure h4{margin:0 0 12px;line-height:1.4}.arg11-figure svg{display:block;width:100%;height:auto;background:white}.arg11-figure figcaption{font-size:.87rem;line-height:1.6}.arg11-legend{display:flex;flex-wrap:wrap;gap:10px 20px;padding:12px;background:#f8f7fc;border:1px solid #e1dcf0;border-radius:7px;margin:18px 0}.arg11-legend span{display:inline-flex;align-items:center;gap:7px;font-size:.9rem}.arg11-legend i{width:17px;height:10px;border:1px solid #999;border-radius:2px}.arg11-note{font-size:.9rem;border-left:3px solid #7b68ee;padding:10px 12px}.arg11-expanded aside .arg11-figure+.arg11-figure{margin-top:16px}@media(max-width:900px){.arg11-row{grid-template-columns:1fr}.arg11-figure{max-width:600px;margin:0 auto}}

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