/* Fibonacci / Golden Ratio interlude. Inherits the site's material palette. */
.golden-principles{--golden-paper:#e7e0d5;--golden-ink:#090c0d;--golden-signal:#c9b397;--golden-muted:#a8a497;--golden-rule:#c9b39730;position:relative;isolation:isolate;background:radial-gradient(ellipse at 95% 15%,#4a49351c,transparent 50%),#0b0f10;color:var(--golden-paper);padding:105px var(--pad,6vw) 120px;border-block:1px solid var(--golden-rule);overflow:hidden}
.golden-principles:before{content:'';position:absolute;inset:0;z-index:-1;background-image:linear-gradient(#c9b39703 1px,transparent 1px),linear-gradient(90deg,#c9b39703 1px,transparent 1px);background-size:89px 89px;pointer-events:none}
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#c9b39755;overflow:hidden}.golden-division-primary,.golden-division-secondary{position:relative;min-width:0;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:35px 0}.golden-division-primary{background:linear-gradient(130deg,#d4c5a7,#b6a17d);color:#172021}.golden-division-primary:before{content:'';position:absolute;inset:0;background-image:linear-gradient(#17202109 1px,transparent 1px),linear-gradient(90deg,#17202109 1px,transparent 1px);background-size:34px 34px}.golden-division-secondary{background:radial-gradient(ellipse at 65% 25%,#3e48446e,transparent 70%),#151d1d;color:#d6c8ad}.golden-area-label,.golden-area-percentage{position:absolute;left:25px;white-space:nowrap;font:8px/1.8 var(--mono,monospace);letter-spacing:.09em}.golden-area-label{top:23px}.golden-area-percentage{bottom:23px;letter-spacing:.03em}.golden-area-letter{font:400 clamp(85px,10vw,160px)/1 var(--serif,Georgia,serif);letter-spacing:-.07em;position:relative}.golden-division-secondary 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@media(min-width:1700px){.golden-principles{padding-top:125px;padding-bottom:145px}.golden-introduction h2{font-size:80px}.golden-principle-list h3{font-size:29px}.golden-principle-list p{font-size:13px}.golden-division-demo{min-height:360px}}
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@media(max-width:760px){.golden-principles{padding:65px 24px 75px}.golden-section-meta{font-size:6px;letter-spacing:.07em;gap:20px;padding-bottom:20px;align-items:start}.golden-section-meta p{max-width:140px}.golden-section-meta>span{max-width:145px}.golden-introduction{grid-template-columns:1fr;gap:25px;padding:35px 0}.golden-introduction h2{font-size:clamp(34px,8.5vw,54px);line-height:1.12;letter-spacing:-.055em}.golden-introduction>p{max-width:440px;font-size:13px;line-height:1.95}.golden-specimen{grid-template-columns:1fr;gap:25px}.golden-plate figcaption{font-size:6px;padding:13px 0}.golden-equations{display:grid;grid-template-columns:1fr 1fr;column-gap:25px;row-gap:8px;padding:5px 0 0;align-items:start}.golden-equations>.golden-eyebrow{grid-column:1;font-size:6px;margin-bottom:5px}.golden-phi{grid-column:1;grid-row:2;gap:11px;font-size:27px;align-items:center}.golden-fraction{font-size:.75em;min-width:2em}.golden-approximation{font-size:8px;margin-top:10px;letter-spacing:-.02em}.golden-recurrence{grid-column:2;grid-row:1/3;margin:0;padding:0;border:0}.golden-recurrence .golden-eyebrow{font-size:6px;margin-bottom:21px}.golden-recurrence>p:not(.golden-eyebrow){font-size:21px;white-space:nowrap;margin-bottom:16px;line-height:1.8}.golden-recurrence>span{font-size:9px;display:block;max-width:140px;line-height:1.8}.golden-sequence-band{grid-template-columns:1fr;gap:20px;padding:23px 0;margin-top:30px}.golden-sequence-band>.golden-eyebrow{max-width:none;font-size:6px}.golden-sequence{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:18px 12px;justify-items:start}.golden-sequence li{font-size:25px}.golden-principle-list{grid-template-columns:1fr;gap:0;padding:10px 0 35px}.golden-principle-list>li{display:grid;grid-template-columns:30px minmax(0,1fr);gap:16px;padding:25px 0;border-bottom:1px solid var(--golden-rule)}.golden-principle-number{font-size:7px;margin:6px 0 0}.golden-principle-list h3{font-size:26px;margin-bottom:13px}.golden-principle-list p{font-size:12px;line-height:1.95}.golden-ratio-examples{flex-direction:row;flex-wrap:wrap;gap:9px 22px;font-size:9px;margin-top:16px}.golden-division-study{padding-top:33px}.golden-division-heading{display:block;margin-bottom:25px}.golden-division-heading .golden-eyebrow{font-size:6px;margin-bottom:20px}.golden-division-heading h3{font-size:36px;line-height:1.12}.golden-division-heading>p{font-size:12px;max-width:360px;margin:20px 0 0}.golden-division-demo{aspect-ratio:1.618;min-height:0;max-height:none}.golden-division-primary,.golden-division-secondary{padding:35px 0}.golden-area-label,.golden-area-percentage{font-size:6px;left:14px;letter-spacing:.02em}.golden-area-label{top:15px}.golden-area-percentage{bottom:15px}.golden-area-letter{font-size:84px}.golden-division-line:before,.golden-division-line:after{width:6px;height:6px;left:-2.5px}.golden-division-line:before{top:9px}.golden-division-line:after{bottom:9px}.golden-division-controls{grid-template-columns:1fr;gap:24px;margin-top:23px}.golden-range-heading label{font-size:8px}.golden-range-heading output{font-size:11px}.golden-range-wrap>p{font-size:7px;line-height:1.9}.golden-range-wrap input[type=range]{height:46px}#golden-division-reset{width:100%;min-height:48px;font-size:15px;padding:13px 18px;gap:20px}#golden-division-reset>span:first-child{font-size:8px}#golden-division-reset>span:last-child{font-size:18px}.golden-closing-note{text-align:left;font-size:7px;line-height:1.9;margin-top:24px;max-width:310px}}
@media(prefers-reduced-motion:reduce){#golden-division-reset{transition:none}}