:root{--bg:#f3f0e8;--surface:#fbfaf5;--surface-strong:#fff;--ink:#171a17;--muted:#667066;--line:#d7d8cd;--green:#0a7a3f;--green-soft:#d9eedf;--code-bg:#17231b;--code-ink:#c8f4d5;--shadow:0 16px 50px rgba(36,46,37,.09);color-scheme:light}
:root[data-theme="dark"]{--bg:#111511;--surface:#1a201b;--surface-strong:#202820;--ink:#f2f2e9;--muted:#9eaa9e;--line:#344037;--green:#37c677;--green-soft:#193a27;--code-bg:#0d120e;--code-ink:#a9efc3;--shadow:0 20px 60px rgba(0,0,0,.28);color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;transition:background-color .26s ease,color .26s ease}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit}::selection{background:var(--green);color:#fff}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.shell{width:min(1456px,calc(100% - 96px));margin-inline:auto}
.site-header{width:min(1456px,calc(100% - 96px));min-height:84px;margin:0 auto;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:11px;width:max-content;text-decoration:none;font-weight:760;font-size:20px;letter-spacing:-.03em}.brand-mark{width:27px;height:27px;padding:4px;display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--green);border-radius:7px}.brand-mark i{display:block;border-radius:1px;background:#f4fff7}.site-header nav{display:flex;align-items:center;gap:34px}.site-header nav a{color:var(--muted);font-size:14px;text-decoration:none;transition:color .16s ease}.site-header nav a:hover{color:var(--ink)}.theme-toggle{justify-self:end;display:inline-flex;align-items:center;gap:8px;padding:9px 13px;border:1px solid var(--line);border-radius:999px;color:var(--ink);background:var(--surface);cursor:pointer;font-size:13px;transition:transform .16s ease,border-color .16s ease}.theme-toggle:hover{border-color:var(--green);transform:translateY(-1px)}.theme-toggle span:first-child{color:var(--green);font-size:16px}
.hero{display:grid;grid-template-columns:minmax(0,2fr) minmax(320px,.9fr);gap:72px;padding-block:88px 92px;align-items:end}.eyebrow{margin:0 0 24px;display:flex;align-items:center;gap:9px;color:var(--muted);text-transform:uppercase;letter-spacing:.14em;font-size:11px;font-weight:700}.eyebrow span{width:8px;height:8px;border-radius:2px;background:var(--green)}.hero h1,.section-heading h2,.shortcut-intro h2,.about-section h2{margin:0;font-family:Georgia,"Times New Roman",serif;font-weight:600;letter-spacing:-.062em;line-height:.91}.hero h1{max-width:820px;font-size:clamp(74px,8.1vw,132px)}.hero-lead{max-width:690px;margin:34px 0 36px;color:var(--muted);font-size:clamp(17px,1.45vw,22px);line-height:1.55}.search-box{max-width:740px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;padding:9px 10px 9px 18px;background:var(--surface-strong);border:1px solid var(--line);border-radius:17px;box-shadow:var(--shadow)}.search-box>span{color:var(--green);font-size:26px;transform:rotate(-12deg)}.search-box input{width:100%;height:46px;border:0;outline:0;color:var(--ink);background:transparent;font-size:15px}.search-box input::placeholder{color:var(--muted)}kbd{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.search-box kbd{padding:8px 10px;color:var(--muted);background:var(--bg);border:1px solid var(--line);border-radius:8px;font-size:11px;white-space:nowrap}.hero-meta{margin-top:28px;display:flex;flex-wrap:wrap;gap:20px;color:var(--muted);font-size:12px}.hero-meta strong{color:var(--ink);margin-right:4px;font-size:14px}
.daily-tip{position:relative;min-height:522px;padding:30px;overflow:hidden;color:#fff;background:var(--green);border-radius:22px;box-shadow:0 20px 60px color-mix(in srgb,var(--green) 25%,transparent)}.daily-tip::after{content:"";position:absolute;width:330px;height:330px;right:-160px;top:80px;border:1px solid rgba(255,255,255,.18);border-radius:50%;box-shadow:0 0 0 55px rgba(255,255,255,.05),0 0 0 110px rgba(255,255,255,.035)}.tip-topline{position:relative;z-index:1;display:flex;justify-content:space-between;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.12em}.cell-demo{position:relative;z-index:1;width:168px;margin:78px 0 54px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.32);border-radius:10px}.cell-demo .cell-name{display:block;width:50px;padding:6px 10px;border-right:1px solid rgba(255,255,255,.28);font:11px ui-monospace,monospace}.cell-demo .cell-formula{display:block;padding:16px 18px;background:rgba(255,255,255,.95);color:#14542f;border-radius:0 0 9px 9px;font:700 24px ui-monospace,monospace}.cell-demo .cursor{position:absolute;right:-9px;bottom:-10px;width:25px;height:25px;display:grid;place-items:center;color:var(--green);background:#fff;border-radius:50%;font-weight:800}.daily-tip h2{position:relative;z-index:1;margin:0 0 16px;font:600 33px/1.06 Georgia,serif;letter-spacing:-.045em}.daily-tip p{position:relative;z-index:1;margin:0 0 27px;color:rgba(255,255,255,.78);font-size:14px;line-height:1.58}.daily-tip p kbd{padding:2px 6px;color:#fff;border:1px solid rgba(255,255,255,.35);border-radius:5px}.daily-tip a{position:relative;z-index:1;display:inline-flex;gap:8px;color:#fff;text-decoration:none;font-size:13px;font-weight:700}
.formula-section{padding-block:104px 112px;border-top:1px solid var(--line)}.section-heading{display:grid;grid-template-columns:1.1fr .9fr;gap:80px;align-items:end}.section-heading h2,.shortcut-intro h2,.about-section h2{font-size:clamp(48px,5vw,76px)}.section-heading>p{max-width:480px;margin:0 0 6px;color:var(--muted);font-size:16px;line-height:1.65}.filter-row{display:flex;flex-wrap:wrap;gap:8px;margin:48px 0 24px}.filter-row button{padding:10px 16px;color:var(--muted);background:transparent;border:1px solid var(--line);border-radius:999px;cursor:pointer;font-size:13px;transition:color .16s ease,background .16s ease,border-color .16s ease}.filter-row button:hover{color:var(--ink);border-color:var(--muted)}.filter-row button.active{color:#fff;background:var(--green);border-color:var(--green)}.formula-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.formula-card{min-height:390px;padding:26px;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:18px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}.formula-card:first-child{grid-column:span 2}.formula-card:hover{transform:translateY(-3px);border-color:var(--green);box-shadow:var(--shadow)}.card-index{margin-bottom:32px;color:var(--muted);font:11px ui-monospace,monospace}.card-tags{display:flex;gap:6px}.card-tags span{padding:5px 8px;color:var(--green);background:var(--green-soft);border-radius:6px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.06em}.formula-card h3{margin:18px 0 10px;font:600 38px Georgia,serif;letter-spacing:-.04em}.formula-card>p{margin:0 0 25px;color:var(--muted);font-size:14px;line-height:1.58}.code-block{margin-top:auto;min-height:66px;padding:13px 12px 13px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;overflow:hidden;background:var(--code-bg);border-radius:11px}.code-block code{overflow-x:auto;color:var(--code-ink);font:12px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;scrollbar-width:none}.code-block button{flex:0 0 auto;padding:8px 10px;color:var(--code-ink);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:7px;cursor:pointer;font-size:10px}.code-block button:hover{background:rgba(255,255,255,.14)}.card-example{margin-top:17px;color:var(--ink);font-size:12px;line-height:1.45}.card-example span{display:block;margin-bottom:5px;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.08em}.empty-state{padding:64px 24px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:18px}
.shortcut-section{margin-bottom:112px;padding:70px;display:grid;grid-template-columns:.85fr 1.15fr;gap:90px;background:var(--ink);color:var(--bg);border-radius:24px}.shortcut-intro .eyebrow{color:color-mix(in srgb,var(--bg) 65%,transparent)}.shortcut-intro>p:last-child{max-width:430px;margin:28px 0 0;color:color-mix(in srgb,var(--bg) 66%,transparent);line-height:1.65}.shortcut-list{border-top:1px solid color-mix(in srgb,var(--bg) 22%,transparent)}.shortcut-row{min-height:78px;display:grid;grid-template-columns:34px 175px 1fr;gap:22px;align-items:center;border-bottom:1px solid color-mix(in srgb,var(--bg) 22%,transparent)}.shortcut-row>span{color:color-mix(in srgb,var(--bg) 45%,transparent);font:10px ui-monospace,monospace}.shortcut-row kbd{justify-self:start;padding:8px 10px;border:1px solid color-mix(in srgb,var(--bg) 30%,transparent);border-radius:7px;font-size:12px;font-weight:700;white-space:nowrap}.shortcut-row p{margin:0;color:color-mix(in srgb,var(--bg) 78%,transparent);font-size:14px}
.about-section{padding-block:104px;display:grid;grid-template-columns:1fr 1fr;gap:100px;border-top:1px solid var(--line)}.about-copy>p{margin:0 0 44px;color:var(--muted);font-size:18px;line-height:1.7}.mini-tips{display:grid;border-top:1px solid var(--line)}.mini-tips article{padding:19px 0;display:grid;grid-template-columns:42px 1fr;gap:16px;border-bottom:1px solid var(--line)}.mini-tips strong{color:var(--green);font:11px ui-monospace,monospace}.mini-tips span{font-size:14px}.site-footer{min-height:190px;display:grid;grid-template-columns:1fr 1fr auto;align-items:center;gap:40px;border-top:1px solid var(--line)}.site-footer p{color:var(--muted);font-size:13px;line-height:1.6}.site-footer>a:last-child{color:var(--green);text-decoration:none;font-size:13px;font-weight:700}
@media(max-width:980px){.shell,.site-header{width:min(100% - 48px,800px)}.site-header{grid-template-columns:1fr auto}.site-header nav{display:none}.hero{grid-template-columns:1fr;gap:42px;padding-top:64px}.daily-tip{min-height:auto}.cell-demo{margin-block:46px 34px}.section-heading,.about-section{grid-template-columns:1fr;gap:36px}.formula-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.formula-card:first-child{grid-column:span 2}.shortcut-section{padding:48px;grid-template-columns:1fr;gap:42px}}
@media(max-width:620px){.shell,.site-header{width:calc(100% - 32px)}.site-header{min-height:72px}.theme-toggle span:last-child{display:none}.hero{padding-block:48px 64px}.hero h1{font-size:clamp(62px,21vw,92px)}.hero-lead{margin-top:26px}.search-box{grid-template-columns:auto 1fr}.search-box kbd{display:none}.hero-meta{gap:12px}.daily-tip{padding:24px;border-radius:18px}.formula-section,.about-section{padding-block:72px}.section-heading h2,.shortcut-intro h2,.about-section h2{font-size:48px}.filter-row{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}.filter-row button{flex:0 0 auto}.formula-grid{grid-template-columns:1fr}.formula-card:first-child{grid-column:auto}.formula-card{min-height:370px}.shortcut-section{width:100%;margin-bottom:72px;padding:56px 24px;border-radius:0}.shortcut-row{grid-template-columns:26px 130px 1fr;gap:10px}.shortcut-row p{font-size:12px}.site-footer{padding-block:46px;grid-template-columns:1fr auto}.site-footer p{grid-column:1/-1;grid-row:2}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}}
.brand small{color:var(--green);font-size:.52em;font-weight:700;letter-spacing:.02em}
.video-section{padding-block:104px 112px;border-top:1px solid var(--line)}.video-heading{display:grid;grid-template-columns:1.1fr .9fr;gap:80px;align-items:end;margin-bottom:48px}.video-heading h2{margin:0;font:600 clamp(48px,5vw,76px)/.91 Georgia,"Times New Roman",serif;letter-spacing:-.062em}.video-heading-copy{max-width:480px}.video-heading-copy p{margin:0 0 18px;color:var(--muted);font-size:16px;line-height:1.65}.video-heading-copy span{color:var(--green);font:700 10px ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.1em;text-transform:uppercase}.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.video-card{padding:14px 14px 24px;background:var(--surface);border:1px solid var(--line);border-radius:18px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}.video-card:hover{transform:translateY(-3px);border-color:var(--green);box-shadow:var(--shadow)}.video-player{aspect-ratio:16/9;overflow:hidden;background:#090d0a;border-radius:12px}.video-player video{display:block;width:100%;height:100%;object-fit:contain;background:#090d0a}.video-card-meta{margin:20px 10px 0;display:flex;justify-content:space-between;gap:12px;color:var(--green);font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.video-card h3{margin:15px 10px 8px;font:600 28px/1.08 Georgia,serif;letter-spacing:-.035em}.video-card>p{min-height:66px;margin:0 10px 18px;color:var(--muted);font-size:13px;line-height:1.55}.video-card>code{display:block;margin:0 10px;overflow:hidden;color:var(--muted);font:10px ui-monospace,SFMono-Regular,Consolas,monospace;text-overflow:ellipsis;white-space:nowrap}.video-noscript{padding:30px;color:var(--muted);border:1px dashed var(--line);border-radius:18px}@media(max-width:980px){.video-heading{grid-template-columns:1fr;gap:36px}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){.video-section{padding-block:72px}.video-heading h2{font-size:48px}.video-grid{grid-template-columns:1fr}}
.formula-card h3{overflow-wrap:anywhere;font-size:clamp(24px,2.4vw,38px)}.formula-results-row{margin:0 0 18px;display:flex;justify-content:space-between;gap:24px;color:var(--muted);font-size:12px}.formula-results-row p{margin:0}.formula-results-row strong{color:var(--green);font:700 16px ui-monospace,SFMono-Regular,Consolas,monospace}.load-more{min-width:240px;margin:28px auto 0;padding:13px 18px;display:flex;align-items:center;justify-content:center;gap:10px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:999px;cursor:pointer;font-size:13px;font-weight:700;transition:transform .16s ease,border-color .16s ease}.load-more:hover{transform:translateY(-2px);border-color:var(--green)}
.history-section{padding-block:104px 112px;border-top:1px solid var(--line)}.history-heading{display:grid;grid-template-columns:1.1fr .9fr;gap:80px;align-items:end}.history-heading h2{margin:0;font:600 clamp(48px,5vw,76px)/.91 Georgia,"Times New Roman",serif;letter-spacing:-.062em}.history-heading>p{max-width:520px;margin:0 0 6px;color:var(--muted);font-size:17px;line-height:1.7}.history-timeline{margin-top:58px;border-top:1px solid var(--line)}.history-timeline article{position:relative;padding:32px 0;display:grid;grid-template-columns:minmax(130px,.34fr) 1fr;gap:48px;border-bottom:1px solid var(--line)}.history-timeline article:before{content:"";position:absolute;top:-5px;left:0;width:9px;height:9px;background:var(--green);border:4px solid var(--bg);border-radius:50%}.history-timeline time{padding-top:4px;color:var(--green);font:700 13px ui-monospace,SFMono-Regular,Consolas,monospace}.history-timeline article>div{display:grid;grid-template-columns:.42fr 1.25fr 1.35fr;gap:28px;align-items:start}.history-timeline article span{color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}.history-timeline h3{margin:0;font:600 27px/1.08 Georgia,"Times New Roman",serif;letter-spacing:-.04em}.history-timeline p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}.facts-heading{margin:88px 0 30px;display:flex;align-items:end;justify-content:space-between;gap:40px}.facts-heading .eyebrow{margin:0}.facts-heading>p:last-child{max-width:480px;margin:0;color:var(--muted);font-size:14px;line-height:1.6}.fact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.fact-grid article{min-height:190px;padding:28px;display:flex;flex-direction:column;justify-content:space-between;background:var(--surface);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.fact-grid strong{color:var(--green);font:600 clamp(28px,3vw,46px)/1 Georgia,"Times New Roman",serif;letter-spacing:-.04em}.fact-grid span{max-width:320px;color:var(--muted);font-size:13px;line-height:1.55}.history-sources{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}.history-sources span{margin-right:8px;color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}.history-sources a{padding:8px 11px;color:var(--green);border:1px solid var(--line);border-radius:999px;text-decoration:none;font-size:11px;font-weight:700;transition:border-color .16s ease,transform .16s ease}.history-sources a:hover{border-color:var(--green);transform:translateY(-1px)}
@media(max-width:980px){.history-heading{grid-template-columns:1fr;gap:36px}.history-timeline article>div{grid-template-columns:.45fr 1fr}.history-timeline article p{grid-column:1/-1}.fact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.history-section{padding-block:72px}.history-heading h2{font-size:48px}.history-timeline{margin-top:44px}.history-timeline article{grid-template-columns:1fr;gap:20px}.history-timeline article>div{grid-template-columns:1fr;gap:12px}.history-timeline article p{grid-column:auto}.facts-heading{margin-top:64px;display:block}.facts-heading>p:last-child{margin-top:18px}.fact-grid{grid-template-columns:1fr}.fact-grid article{min-height:165px}}
.video-heading-copy>span{color:var(--green);font:700 10px ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.1em;text-transform:uppercase}.video-nav{margin-top:24px;display:flex;gap:9px}.video-nav button{width:44px;height:44px;display:grid;place-items:center;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:50%;cursor:pointer;font-size:20px;transition:color .16s ease,border-color .16s ease,transform .16s ease}.video-nav button:hover{color:var(--green);border-color:var(--green);transform:translateY(-1px)}.video-grid{display:flex;grid-template-columns:none;gap:18px;overflow-x:auto;padding:6px 2px 20px;scroll-snap-type:x mandatory;scroll-padding-inline:2px;overscroll-behavior-inline:contain;scrollbar-width:thin;scrollbar-color:var(--green) var(--line)}.video-grid:focus-visible{outline:2px solid var(--green);outline-offset:5px;border-radius:14px}.video-card{flex:0 0 calc((100% - 36px)/3);scroll-snap-align:start}.video-card>p{margin-bottom:8px}.video-card>code{display:none}
@media(max-width:980px){.video-card{flex-basis:calc((100% - 18px)/2)}}
@media(max-width:620px){.video-card{flex-basis:min(88%,380px)}}
.hero{position:relative;isolation:isolate;overflow:clip}.hero-copy,.daily-tip{position:relative;z-index:2}.hero-sheet-art{position:absolute;z-index:0;top:30px;bottom:40px;left:31%;right:15%;overflow:hidden;opacity:.48;transform:rotate(-3deg);border:1px solid color-mix(in srgb,var(--green) 25%,var(--line));border-radius:28px;background:repeating-linear-gradient(90deg,transparent 0 91px,color-mix(in srgb,var(--green) 16%,var(--line)) 91px 92px),repeating-linear-gradient(0deg,transparent 0 53px,color-mix(in srgb,var(--green) 16%,var(--line)) 53px 54px),color-mix(in srgb,var(--surface) 80%,transparent);box-shadow:0 30px 90px color-mix(in srgb,var(--green) 11%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 18%,#000 82%,transparent);mask-image:linear-gradient(90deg,transparent,#000 18%,#000 82%,transparent);pointer-events:none}.sheet-formula{position:absolute;top:28px;left:30px;width:min(390px,66%);height:48px;padding:0 16px;display:flex;align-items:center;gap:14px;color:var(--muted);background:color-mix(in srgb,var(--surface-strong) 88%,transparent);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}.sheet-formula b{color:var(--green);font:italic 700 22px Georgia,serif}.sheet-formula code{font:13px ui-monospace,SFMono-Regular,Consolas,monospace}.sheet-selection{position:absolute;top:38%;left:31%;width:188px;height:108px;background:color-mix(in srgb,var(--green) 7%,transparent);border:3px solid var(--green);box-shadow:0 0 0 1px color-mix(in srgb,var(--surface) 85%,transparent)}.sheet-selection:after{content:"";position:absolute;right:-7px;bottom:-7px;width:11px;height:11px;background:var(--green);border:2px solid var(--surface)}.sheet-selection span{position:absolute;top:-26px;left:-3px;padding:4px 8px;color:#fff;background:var(--green);border-radius:5px 5px 0 0;font:700 10px ui-monospace,SFMono-Regular,Consolas,monospace}.sheet-chart{position:absolute;right:11%;bottom:11%;height:145px;display:flex;align-items:end;gap:13px}.sheet-chart i{width:25px;height:28%;display:block;background:color-mix(in srgb,var(--green) 40%,transparent);border:1px solid color-mix(in srgb,var(--green) 55%,transparent);border-radius:6px 6px 2px 2px}.sheet-chart i:nth-child(2){height:52%}.sheet-chart i:nth-child(3){height:75%}.sheet-chart i:nth-child(4){height:62%}.sheet-chart i:nth-child(5){height:100%;background:color-mix(in srgb,var(--green) 65%,transparent)}
.video-nav{display:none}.video-carousel{position:relative}.video-grid{padding:6px 2px 8px;scrollbar-width:none}.video-grid::-webkit-scrollbar{display:none}.video-arrow{position:absolute;z-index:4;top:50%;width:52px;height:52px;display:grid;place-items:center;color:var(--ink);background:color-mix(in srgb,var(--surface-strong) 92%,transparent);border:1px solid var(--line);border-radius:50%;box-shadow:0 12px 34px color-mix(in srgb,var(--ink) 14%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);cursor:pointer;font:32px/1 Georgia,serif;transform:translateY(-50%);transition:color .16s ease,border-color .16s ease,transform .16s ease}.video-arrow:hover{color:var(--green);border-color:var(--green);transform:translateY(-50%) scale(1.06)}.video-arrow-prev{left:-25px}.video-arrow-next{right:-25px}
@media(max-width:980px){.hero-sheet-art{display:none}.video-arrow-prev{left:8px}.video-arrow-next{right:8px}}
@media(max-width:620px){.video-arrow{width:44px;height:44px;font-size:27px}}
.excel-intro{padding-block:76px 84px;border-top:1px solid var(--line)}.markdown-copy{max-width:1120px;margin-inline:auto}.markdown-label{margin:0 0 20px;color:var(--green);font:700 11px ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.12em;text-transform:uppercase}.markdown-label span{margin-right:8px;opacity:.62}.markdown-copy h2{max-width:900px;margin:0 0 30px;font:600 clamp(40px,4vw,62px)/1 Georgia,"Times New Roman",serif;letter-spacing:-.05em}.markdown-copy>p:not(.markdown-label){max-width:1050px;margin:0 0 18px;color:var(--muted);font-size:18px;line-height:1.82}.markdown-copy>p:last-child{margin-bottom:0}.markdown-copy strong{color:var(--ink);font-weight:720}
@media(max-width:620px){.excel-intro{padding-block:58px 64px}.markdown-copy h2{margin-bottom:24px;font-size:40px}.markdown-copy>p:not(.markdown-label){font-size:16px;line-height:1.72}}