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0;color:#747c8b}.try-numbers{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:24px;font-size:11px}.try-numbers>span{color:var(--muted);margin-right:6px}.try-numbers a{padding:4px 11px;background:#fff;border:1px solid var(--line);border-radius:6px;font-weight:600}.try-numbers a span{color:#7e8595;margin-left:12px}.try-numbers a:hover{border-color:var(--accent)}.number-art{height:420px;position:relative;background-image:radial-gradient(#cfd5e3 .7px,transparent .7px);background-size:18px 18px;isolation:isolate;display:flex;align-items:center;justify-content:center}.number-art:before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,transparent 20%,var(--paper) 74%);z-index:-1}.main-number{width:245px;height:281px;border:1px solid #dfe2f0;border-radius:24px;background:linear-gradient(145deg,#fff,#f0f1ff);box-shadow:0 22px 50px #4b56aa14;transform:rotate(-7deg);display:flex;align-items:center;flex-direction:column;justify-content:center;z-index:2}.main-number .little-label{font-size:8px;letter-spacing:.18em;font-weight:700;color:#7b82a0}.main-number>strong{font-size:120px;line-height:1.35;font-weight:650;letter-spacing:-.09em;color:var(--accent);position:relative;padding-right:8px}.main-number>strong span{font-size:40px;color:#a2cf76;position:absolute;right:-17px;bottom:15px}.main-number>span:not(.little-label){font-size:12px;letter-spacing:.02em;color:#737a92}.number-tags{display:flex;gap:7px;margin-top:17px}.number-tags span{font-size:9px;background:#e8ebfa;color:#626b9a;padding:2px 9px;border-radius:20px}.float-card{position:absolute;display:flex;align-items:center;gap:12px;border:1px solid #e4e8f2;border-radius:12px;background:#fff;padding:14px 17px;box-shadow:0 10px 30px #2632670b;z-index:3}.float-card small{display:block;font-size:8px;letter-spacing:.14em;font-weight:650;color:#737d92}.float-card 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#dfe4ef;border-radius:50%;width:335px;height:335px;transform:rotate(-20deg)}.orbit-two{width:410px;height:205px;border-style:dashed;transform:rotate(-35deg)}.benefit-strip{border-block:1px solid var(--line);background:#fff}.benefit-strip>.wrap{display:flex;justify-content:space-between;gap:25px;padding-block:21px;font-size:12px;color:#60687b;font-weight:550}.benefit-strip b{color:var(--accent);font-size:17px;margin-right:13px;font-weight:500}.section{padding-block:66px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:29px}.section-heading h2{margin-bottom:0;font-size:30px}.section-heading .eyebrow{margin-bottom:12px}.section-heading>p{font-size:12px;line-height:1.8;margin-bottom:0;max-width:320px}.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.topic-card{display:flex;flex-direction:column;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:border-color 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p{font-size:12px;line-height:1.75;margin-bottom:23px;max-width:270px}.card-link{display:flex;justify-content:space-between;font-size:10px;font-weight:650;color:var(--accent);margin-top:auto;overflow-wrap:anywhere;gap:12px}.card-link>span:not(.sr-only){font-size:16px}.roman-card{grid-column:1/-1;display:grid;grid-template-columns:auto 1fr 2fr auto;align-items:center;gap:24px;padding-block:20px;background:#f0f1f6}.roman-card .card-top{margin:0}.roman-card .card-index{display:none}.roman-card h3,.roman-card p{margin:0;max-width:none}.roman-card .card-link{margin:0;gap:25px}.roman-card .math-icon{background:white;color:#737a91}.knowledge-section{padding:66px 0;background:#eef0f8;border-block:1px solid #e5e8f1}.knowledge-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px}.knowledge-grid h2{line-height:1.25;margin-bottom:20px}.knowledge-grid>div>p:not(.eyebrow){font-size:14px;max-width:405px;line-height:1.8}.text-link{font-size:12px;color:var(--accent);font-weight:650}.text-link 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12px;border-radius:20px;background:#e9edf8;color:#586489;font-size:10px}.lead{font-size:15px;line-height:1.85}.quick-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:30px}.quick-results>a{padding:19px;background:white;border:1px solid var(--line);border-radius:12px;min-width:0}.quick-results span{font-size:11px;color:var(--muted);display:block}.quick-results strong{display:block;font-size:26px;color:var(--accent);margin-top:9px;overflow-wrap:anywhere}.search-aside{padding:24px;background:#eef0fb;border:1px solid #e0e4f5;border-radius:var(--radius)}.search-aside h2{font-size:25px;line-height:1.3}.search-aside .eyebrow{font-size:9px;margin-bottom:12px}.search-aside .number-search label{font-size:11px}.search-aside .search-field{flex-wrap:wrap}.search-aside input{width:calc(100% - 42px)}.search-aside button{width:100%;margin-top:2px}.search-aside>.text-link{display:block;margin-top:25px;overflow-wrap:anywhere}.aside-note{font-size:11px;border-top:1px solid #dce0f1;padding-top:18px;margin:19px 0 0}.result-box{background:#fff;border:1px solid #dbe0f4;border-radius:18px;padding:28px;margin:28px 0 35px;box-shadow:0 8px 26px #454f9d05}.result-label{display:flex;align-items:center;justify-content:space-between;color:var(--accent);font-size:9px;letter-spacing:.13em;font-weight:650}.result-icon{font-size:27px;font-family:Georgia,serif;letter-spacing:0}.result-value{color:var(--accent);font-size:clamp(26px,4vw,44px);font-weight:650;line-height:1.3;letter-spacing:-.035em;margin:13px 0 17px;overflow-wrap:anywhere}.result-equation{font-size:13px;overflow-wrap:anywhere}.copy-button,.share-button{border:1px solid #dfe3ed;background:var(--paper);padding:9px 13px;border-radius:7px;font-size:11px;color:#515c76}.copy-button span{margin-left:16px}.copy-status{font-size:11px;color:#48682e;margin-left:12px}.explanation h2{font-size:24px;margin-top:32px}.explanation p{font-size:14px;line-height:1.9}.example{border-left:3px solid #94ba76;background:#edf3e9;padding:19px 22px;border-radius:0 10px 10px 0;margin-top:24px}.example strong{font-size:12px;color:#4e6c38}.example p{margin:8px 0 0;font-size:13px}.selected{border-color:var(--accent);background:#f0f2ff}.related .section-heading h2{overflow-wrap:anywhere}.nearby{border-top:1px solid var(--line);padding:30px 0 55px}.nearby h2{font-size:20px}.number-chips{display:flex;flex-wrap:wrap;gap:9px}.number-chips a{font-size:12px;padding:9px 15px;background:white;border:1px solid var(--line);border-radius:8px;overflow-wrap:anywhere;max-width:100%}.number-chips a[aria-current],.number-chips a:hover{border-color:var(--accent);color:var(--accent)}.error-message{padding:15px;background:#fff0ed;border:1px solid #f1c9c0;border-radius:9px;color:#9b3a27;font-size:13px}.error-page{max-width:750px;min-height:65vh}.error-page .number-search{margin:30px 0}.legal{max-width:850px;overflow-wrap:anywhere}.legal h1{font-size:44px}.legal h2{font-size:23px;margin-top:34px}.legal p{font-size:14px}.legal a{color:var(--accent);text-decoration:underline}.ad-slot{margin:0 auto 35px;min-height:280px;max-width:970px;text-align:center;border-top:1px solid var(--line);padding-top:12px}.ad-label{display:block;font-size:9px;letter-spacing:.1em;color:#81889a;margin-bottom:8px}.ad-slot .adsbygoogle{display:block;min-height:250px}
@media(min-width:1500px){.hero{padding-block:95px}.number-art{height:450px}}
@media(max-width:1000px){.wrap,.header-inner{width:calc(100% - 48px)}.hero{gap:30px;padding-block:60px}.hero h1{font-size:48px}.hero-intro{font-size:14px}.search-field button{padding-inline:12px}.search-field button span{margin-left:5px}.number-art{transform:scale(.88);transform-origin:center;width:100%}.binary-float{right:-24px}.sum-float{left:-22px}.topic-card{padding:21px}.detail-layout{gap:30px;grid-template-columns:minmax(0,1fr) 270px}.knowledge-grid{gap:45px}.brand{font-size:18px}.top-nav{gap:18px;font-size:12px}.header-inner{gap:20px}.languages{padding-left:18px;gap:10px}.section-heading>p{max-width:260px}.quick-results strong{font-size:22px}}
@media(max-width:760px){.wrap,.header-inner{width:calc(100% - 36px)}.header-inner{min-height:81px;flex-wrap:wrap;gap:12px;padding-block:16px}.brand{font-size:17px}.brand small{font-size:8px}.brand-mark{width:38px;height:38px;font-size:31px}.top-nav{order:3;width:100%;justify-content:center;border-top:1px solid var(--line);padding-top:12px;margin-top:3px;gap:30px}.languages{border:0;padding:0;margin-left:auto;font-size:10px;gap:10px}.hero{grid-template-columns:1fr;gap:20px;padding-top:42px;padding-bottom:32px}.hero-copy{max-width:540px;margin:auto;width:100%}.hero h1{font-size:clamp(38px,8vw,56px);line-height:1.1}.hero-intro{font-size:15px;max-width:470px;margin-bottom:25px}.hero .eyebrow{font-size:9px;margin-bottom:20px}.number-art{height:330px;max-width:400px;margin:0 auto;transform:scale(.85);margin-block:-12px -15px}.main-number{width:215px;height:250px}.main-number>strong{font-size:100px}.binary-float{top:33px;right:-7px}.sum-float{bottom:21px;left:-5px}.art-caption{bottom:-20px}.symbol-pi{top:0;left:26px}.symbol-plus{top:-10px;right:90px}.orbit-one{width:280px;height:280px}.orbit-two{width:350px;height:180px}.benefit-strip>.wrap{gap:10px;padding-block:17px;font-size:10px;justify-content:space-around;align-items:center}.benefit-strip b{display:block;text-align:center;margin:0 0 2px}.section{padding-block:44px}.section-heading{align-items:flex-start;flex-direction:column;gap:13px;margin-bottom:23px}.section-heading h2{font-size:28px}.section-heading>p{max-width:none}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.topic-card{padding:20px}.card-top{margin-bottom:18px}.topic-card h3{font-size:17px}.topic-card p{font-size:12px}.roman-card{display:flex;grid-column:auto}.roman-card .card-top{margin-bottom:18px}.roman-card .math-icon{width:43px}.roman-card h3{margin-bottom:9px}.roman-card p{margin-bottom:23px}.roman-card .card-link{margin-top:auto;gap:9px}.knowledge-section{padding-block:44px}.knowledge-grid{grid-template-columns:1fr;gap:25px}.knowledge-grid>div>p:not(.eyebrow){max-width:100%}.knowledge-grid h2{font-size:30px}.knowledge-notes{gap:23px}.faq{grid-template-columns:1fr;gap:10px}.faq h2{margin-bottom:20px}.footer-top{align-items:flex-start;gap:20px}.footer-top>p{max-width:100px;font-size:10px}.footer-bottom{flex-direction:column;gap:10px}.footer-bottom>div{gap:18px;flex-wrap:wrap}.breadcrumbs{margin:23px 0 28px;font-size:10px}.detail-layout{grid-template-columns:1fr;gap:28px}.search-aside{padding:23px}.search-aside h2{font-size:23px}.search-aside .search-field{flex-wrap:nowrap}.search-aside .search-field input{width:100%}.search-aside .search-field button{width:auto;white-space:nowrap}.search-aside .aside-note{display:none}.search-aside>.text-link{margin-top:17px}.detail-main h1{font-size:36px}.detail-main .number-title{font-size:clamp(32px,9vw,65px)}.result-box{padding:23px;margin-top:22px}.result-value{font-size:32px}.quick-results{gap:9px}.quick-results>a{padding:14px}.quick-results strong{font-size:23px}.quick-results span{font-size:10px}.related .section-heading h2{font-size:26px}.ad-slot{min-height:300px;margin-inline:18px}.legal h1{font-size:36px}.legal h2{font-size:21px}}
@media(max-width:380px){.brand-light{display:block;font-size:13px}.brand small{display:none}.hero h1{font-size:36px}.search-field button{font-size:11px;padding-inline:10px}.search-field input{font-size:12px}.search-field>span{padding-inline:5px}.topic-grid{grid-template-columns:1fr}.roman-card{grid-column:auto}.topic-card{padding:24px}.number-art{transform:scale(.75);margin-block:-30px;max-width:330px}.number-art .binary-float{right:-15px}.footer-top{flex-direction:column}.footer-top>p{max-width:none}.benefit-strip>.wrap{font-size:9px}.search-aside{padding:17px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.topic-card{transition:none}.topic-card:hover{transform:none}}

/* Readability, touch targets and intermediate tablet widths. */
.input-hint,.card-index,.ad-label,.footer-bottom,.art-caption{color:#626b7c}.languages a{min-width:24px;min-height:28px;display:inline-flex;align-items:center;justify-content:center}.main-number .little-label,.main-number>span:not(.little-label),.float-card small{color:#626b83}.hero-copy,.number-art{min-width:0}
@media(min-width:761px) and (max-width:1000px){.orbit-one{width:260px;height:260px}.orbit-two{width:300px;height:160px}.hero{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}.hero h1{font-size:42px}}

.number-word{color:#626b83}.result-actions{min-height:38px}