@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Raleway:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400&display=swap');

:root{color-scheme:dark;--bg:#000;--surface:#090909;--raised:#111;--ink:#f2f2ee;--muted:#979793;--heading-muted:#7f7f7b;--border:#242424;--soft-border:#191919;--warm:#f1eee8;--header:rgba(0,0,0,.86);--focus:#ecece7}
:root[data-theme="light"]{color-scheme:light;--bg:#fafaf8;--surface:#f2f2ef;--raised:#eaeae6;--ink:#151515;--muted:#666661;--heading-muted:#85857f;--border:#d9d9d2;--soft-border:#e6e6df;--warm:#eeebe4;--header:rgba(250,250,248,.9);--focus:#151515}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,Arial,sans-serif;font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}svg{flex-shrink:0}button{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--focus);outline-offset:5px}button:disabled{cursor:default}h1,h2,h3,p,figure{margin:0}ul{padding:0;margin:0;list-style:none}h1,h2{font-family:Raleway,Inter,sans-serif;font-weight:300;letter-spacing:-.045em;line-height:1.1}h3{font-size:18px;font-weight:500;line-height:1.4;letter-spacing:-.025em}p{color:var(--muted)}::selection{background:var(--ink);color:var(--bg)}
.wrap{width:min(1180px,calc(100% - 72px));margin-inline:auto}.section{padding-block:112px}.text-muted{color:var(--heading-muted)}.eyebrow{font-size:12px;font-weight:500;letter-spacing:.16em;line-height:1.6;text-transform:uppercase;color:var(--muted)}.section-number{display:inline-block;margin-right:20px;color:var(--heading-muted)}.button{display:inline-flex;align-items:center;justify-content:center;gap:26px;min-height:49px;padding:12px 24px;border:1px solid transparent;border-radius:999px;font-size:14px;font-weight:500;line-height:1.3;transition:background .18s,border-color .18s,transform .18s}.button:hover{transform:translateY(-2px)}.button-primary{background:var(--ink);color:var(--bg)}.button-primary:hover{opacity:.88}.button-outline{border-color:var(--border);background:transparent;color:var(--ink)}.button-outline:hover{border-color:var(--muted);background:var(--surface)}.button-ink{background:#111;color:#fff}.button-ink:hover{background:#292929}.button-small{min-height:38px;padding:8px 17px;gap:16px;font-size:13px}.button-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px}.text-link{display:inline-flex;gap:16px;align-items:center;font-size:14px;font-weight:500;color:var(--ink);line-height:1.5}.text-link:hover svg{transform:translateX(3px)}.text-link svg{transition:transform .2s}.skip-link{position:fixed;left:20px;top:-70px;z-index:100;padding:12px 20px;border-radius:8px;background:var(--ink);color:var(--bg)}.skip-link:focus{top:12px}

.site-header{position:sticky;top:0;z-index:30;background:var(--header);border-bottom:1px solid var(--soft-border);backdrop-filter:blur(20px)}.header-inner{width:min(1260px,calc(100% - 64px));height:76px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}.wordmark{display:inline-flex;align-items:center;font-family:Raleway,Inter,sans-serif;font-weight:300;font-size:20px;letter-spacing:-.035em;white-space:nowrap}.wordmark strong{font-weight:700}.main-nav{display:flex;align-items:center;gap:29px;font-size:13px;color:var(--muted)}.main-nav>a{padding:10px 0;transition:color .15s}.main-nav>a:hover,.main-nav>a[aria-current="page"]{color:var(--ink)}.header-actions{display:flex;align-items:center;gap:18px}.theme-button{border:0;background:transparent;padding:9px;border-radius:50%;display:grid;place-items:center;color:var(--muted)}.theme-button:hover{background:var(--raised);color:var(--ink)}.theme-moon{display:none}[data-theme="light"] .theme-moon{display:block}[data-theme="light"] .theme-sun{display:none}.menu-button,.mobile-account{display:none}

.hero{padding-top:60px}.hero-copy{max-width:880px;text-align:center;margin:auto}.announcement{display:inline-flex;align-items:center;gap:12px;padding:5px 11px 5px 5px;border:1px solid var(--border);border-radius:999px;font-size:12px;color:var(--muted)}.announcement:hover{border-color:var(--muted)}.announcement-tag{padding:3px 10px;border-radius:99px;color:var(--ink);background:var(--raised);font-size:11px;font-weight:600;letter-spacing:.035em}.announcement svg{width:12px;height:12px}.hero-eyebrow{margin:39px 0 18px}.hero h1{font-size:clamp(66px,8vw,110px);letter-spacing:-.065em;line-height:1.02}.hero h1 br{display:none}.hero-serif{font-style:italic;margin-left:.13em;font-weight:300}.hero-description{max-width:650px;margin:26px auto 28px;font-size:16px;line-height:1.9}.hero .button-row{justify-content:center}.hero-details{display:flex;flex-wrap:wrap;justify-content:center;gap:23px;margin-top:26px;font-size:12px;color:var(--muted)}.hero-details span+span::before{content:'·';display:inline-block;margin-right:23px;color:var(--heading-muted)}
.product-showcase{margin:65px auto 0;color:var(--ink)}
.showcase-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:23px;text-align:left}.showcase-title .eyebrow{font-size:10px;letter-spacing:.16em}.showcase-title h2{font-size:33px;letter-spacing:-.045em;line-height:1.15;margin-top:9px}.showcase-title h2 span{color:var(--heading-muted)}
.showcase-appearance{display:grid;justify-items:end;gap:8px}.appearance-label{font-size:10px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}.appearance-switch{display:inline-flex;align-items:center;gap:3px;padding:4px;border:1px solid var(--border);border-radius:999px;background:var(--surface)}.appearance-switch button{display:flex;align-items:center;justify-content:center;gap:9px;min-height:38px;min-width:111px;padding:9px 15px;border:0;border-radius:999px;background:transparent;color:var(--muted);font-size:12px;line-height:1.4;transition:background .25s,color .25s,box-shadow .25s}.appearance-switch button:hover{color:var(--ink)}.appearance-switch button[aria-pressed="true"]{background:var(--ink);color:var(--bg);box-shadow:0 2px 9px rgba(0,0,0,.1)}.appearance-swatch{width:14px;height:14px;border-radius:50%;flex-shrink:0;box-shadow:inset 0 0 0 1px rgba(140,140,135,.5)}.swatch-dark{background:#111}.swatch-light{background:#f0efeb}
.showcase-stage{position:relative;padding:10px;border:1px solid #292929;border-radius:24px;overflow:hidden;background:linear-gradient(145deg,#171717,#050505 45%,#141414);box-shadow:0 28px 70px rgba(0,0,0,.2),inset 0 1px 0 rgba(255,255,255,.05);transition:border-color .4s,box-shadow .4s,background .3s}.themed-preview{width:100%;position:relative}.preview-shot{display:block;border-radius:16px;overflow:hidden;cursor:zoom-in;animation:showcase-appearance-in .35s ease-out}.preview-shot img{display:block;width:100%;height:auto;aspect-ratio:8/5;object-fit:contain}
:root:not([data-theme="light"]) .theme-variant-light,:root[data-theme="light"] .theme-variant-dark{display:none!important}
[data-theme="light"] .showcase-stage{border-color:#d0d0c9;background:linear-gradient(145deg,#f7f7f2,#d8d8d1 55%,#eeeee8);box-shadow:0 28px 65px rgba(40,40,25,.09),inset 0 1px 0 #fff}
.product-showcase figcaption{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;padding:20px 4px 0;text-align:left;color:var(--muted);font-size:12px}.showcase-caption-copy{display:flex;align-items:baseline;flex-wrap:wrap;gap:5px 16px;min-width:0}.showcase-caption-copy strong{font-size:12px;font-weight:500;color:var(--ink)}.showcase-expand{flex-shrink:0}.showcase-expand a{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:12px;white-space:nowrap}.showcase-expand svg{width:14px;height:14px;transition:transform .25s}.showcase-expand a:hover svg{transform:translate(2px,-2px)}
@keyframes showcase-appearance-in{from{opacity:.35}to{opacity:1}}
.product-strip{display:grid;grid-template-columns:repeat(4,1fr);padding:27px 0;border-bottom:1px solid var(--border);color:var(--heading-muted);font-size:12px;letter-spacing:.2em;text-align:center}

.section-heading{display:flex;justify-content:space-between;gap:50px;align-items:flex-end;margin-bottom:48px}.section-heading h2,.abcurves-copy h2,.questions-section h2{font-size:clamp(34px,4.1vw,53px);margin-top:16px}.section-heading p{max-width:560px;margin-top:22px;font-size:15px;line-height:1.9}.section-aside{padding-bottom:5px;flex-shrink:0}.feature-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.feature-card{position:relative;padding:30px 25px 28px;min-height:310px;border:1px solid var(--border);border-radius:17px;background:linear-gradient(145deg,var(--surface),var(--bg))}.feature-symbol{width:89px;height:64px;margin:8px 0 38px;color:var(--ink)}.feature-symbol svg{width:100%;height:100%;stroke:currentColor;stroke-width:1.1;stroke-linecap:round;stroke-linejoin:round}.card-index{position:absolute;right:23px;top:26px;font-size:12px;color:var(--heading-muted)}.feature-card h3{font-size:16px;margin-bottom:13px}.feature-card p{font-size:13px;line-height:1.9}

.abcurves-section{border-block:1px solid var(--border);background:var(--surface)}.abcurves-grid{display:grid;grid-template-columns:1fr 1.08fr;gap:76px;align-items:center}.abcurves-copy>p{font-size:15px;line-height:1.9;margin-top:25px;max-width:445px}.plain-list{display:grid;gap:13px;font-size:14px;color:var(--muted)}.plain-list li{display:flex;gap:12px;align-items:flex-start}.plain-list svg{margin-top:3px;color:var(--ink)}.abcurves-copy>.plain-list{margin-block:27px}.compatibility-note{border-left:1px solid var(--heading-muted);padding-left:16px;margin:30px 0}.compatibility-note>span{font-size:12px;color:var(--ink)}.compatibility-note p{font-size:13px;line-height:1.8;max-width:360px;margin-top:5px}.curve-module{--curve-bg:#030303;--curve-ink:#eaeae6;--curve-muted:#aaa9a2;--curve-border:#303030;--curve-grid:#ddd;--curve-guide:#494945;--curve-prefix:#d7d7d1;--curve-finish:#f1f1ed;--curve-accent:#fff;--curve-ring:#696965;--curve-node:#eee;--curve-node-edge:#111;--curve-control-bg:transparent;--curve-control-ink:#aaa99f;--curve-selected:#e8e8e2;--curve-selected-ink:#151515;--curve-hover:#575751;--curve-glow:rgba(255,255,255,.6);--curve-shadow:rgba(0,0,0,.12);--curve-highlight:rgba(255,255,255,.025);border:1px solid var(--curve-border);border-radius:22px;background:var(--curve-bg);color:var(--curve-ink);padding:26px;box-shadow:0 22px 60px var(--curve-shadow),inset 0 1px 0 var(--curve-highlight);transition:background .3s,color .3s,border-color .3s,box-shadow .3s}
[data-theme="light"] .curve-module{--curve-bg:#f1f2ed;--curve-ink:#282b25;--curve-muted:#666a60;--curve-border:#d3d5cc;--curve-grid:#61665a;--curve-guide:#a1a699;--curve-prefix:#565c4f;--curve-finish:#454b3e;--curve-accent:#e8754e;--curve-ring:#a7ad9f;--curve-node:#e8754e;--curve-node-edge:#fafbf7;--curve-control-bg:#e6e8e0;--curve-control-ink:#555b4d;--curve-selected:#e8754e;--curve-selected-ink:#171b14;--curve-hover:#b1b7a8;--curve-glow:rgba(232,117,78,.35);--curve-shadow:rgba(52,57,43,.09);--curve-highlight:rgba(255,255,255,.9)}
.curve-module-top{display:flex;align-items:center;justify-content:space-between;gap:15px}.curve-module-top .eyebrow{color:var(--curve-muted)}.mini-label{font-size:11px;color:var(--curve-muted)}.curve-diagram{width:100%;height:auto;margin:14px 0;color:var(--curve-grid)}.curve-diagram text{font:12px Inter,sans-serif;fill:var(--curve-ink);transition:fill .25s}.curve-diagram .curve-small{font-size:11px;fill:var(--curve-muted)}.curve-guide{stroke:var(--curve-guide);stroke-width:1;stroke-dasharray:3 7}.curve-prefix{stroke:var(--curve-prefix);stroke-width:2;fill:none;transition:opacity .2s}.curve-finish{stroke:var(--curve-finish);stroke-width:2;fill:none;stroke-dasharray:6 5;opacity:.45;transition:opacity .2s}.curve-step-1 .curve-finish,.curve-step-2 .curve-finish{opacity:1}.curve-step-2 .curve-finish{stroke-dasharray:none}.curve-step-1 .curve-prefix{opacity:.4}.curve-ring{stroke:var(--curve-ring);stroke-width:1;fill:none}.curve-node{fill:var(--curve-node);stroke:var(--curve-node-edge);stroke-width:3}.curve-controls{display:grid;grid-template-columns:repeat(3,1fr);padding:4px;background:var(--curve-control-bg);border:1px solid var(--curve-border);border-radius:11px;gap:4px}.curve-controls button{border:0;border-radius:7px;padding:10px 5px;background:transparent;color:var(--curve-control-ink);font-size:12px;transition:background .2s}.curve-controls button>span{display:inline-block;margin-right:8px;font-size:11px;opacity:.7}.curve-controls button[aria-pressed="true"]{background:var(--curve-selected);color:var(--curve-selected-ink)}.curve-controls button:focus-visible{outline-color:var(--focus)}.curve-explanation{color:var(--curve-ink);font-size:13px;line-height:1.8;margin-top:19px;min-height:40px}.diagram-note{font-size:11px;color:var(--curve-muted);margin-top:16px}

.hardware-layout{display:grid;grid-template-columns:1.45fr 1fr;gap:60px;align-items:center}.hardware-image{background:var(--surface);border:1px solid var(--border);border-radius:16px;overflow:hidden;padding:10px}.hardware-image img{width:100%;height:auto}.image-caption{display:block;border-top:1px solid var(--border);padding:15px 12px 7px;color:var(--muted);font-size:11px}.hardware-notes{display:grid;gap:27px}.hardware-notes article{padding-bottom:23px;border-bottom:1px solid var(--border)}.hardware-notes article:last-child{padding-bottom:0;border:0}.hardware-notes h3{margin:8px 0 10px}.hardware-notes p{font-size:14px;line-height:1.8}.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}.step-number{display:inline-block;font-size:12px;letter-spacing:.1em;color:var(--heading-muted);margin-bottom:28px}.steps-grid article,.explanation-grid article{border-top:1px solid var(--border);padding-top:25px}.steps-grid h3{font-size:15px;margin-bottom:13px}.steps-grid p{font-size:13px;line-height:1.9}

.pricing-section{background:var(--surface);border-block:1px solid var(--border)}.pricing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.price-card{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:18px;padding:29px;background:var(--bg);min-width:0}.price-featured{--ink:#171715;--muted:#66645e;--border:#d1cfc8;background:var(--warm);color:var(--ink)}.price-card-top{display:flex;gap:15px;align-items:center;justify-content:space-between;min-height:26px}.price-badge{font-size:11px;border:1px solid #ceccc4;border-radius:99px;padding:3px 10px}.price-value{font-family:Raleway,Inter,sans-serif;font-weight:300;font-size:67px;letter-spacing:-.055em;line-height:1;margin:29px 0 17px;display:flex;align-items:flex-start;gap:4px}.price-value>span{font-size:23px;margin-top:7px}.price-value small{align-self:flex-end;margin:0 0 9px 8px;font-family:Inter,sans-serif;font-size:11px;font-weight:400;letter-spacing:.04em;color:var(--muted)}.price-period{font-size:12px;min-height:20px}.price-description{font-size:14px;line-height:1.8;margin:18px 0 23px;min-height:43px;max-width:240px}.price-card>.button{width:100%;justify-content:space-between;font-size:13px;padding:13px 20px}.price-features{border-top:1px solid var(--border);padding-top:24px;margin-top:28px;display:grid;gap:12px;color:var(--muted);font-size:13px}.price-features li{display:flex;align-items:flex-start;gap:11px}.price-features svg{color:var(--ink);margin-top:2px}.pricing-footnotes{margin-top:25px;display:flex;align-items:flex-start;justify-content:space-between;gap:44px}.pricing-footnotes p{max-width:630px;font-size:12px;line-height:1.9}.pricing-footnotes a{font-size:12px;display:inline-flex;align-items:center;gap:12px;flex-shrink:0;margin-top:2px}.pricing-footnotes a:hover{text-decoration:underline}.pricing-page-cards{padding-bottom:34px}

.questions-section{display:grid;grid-template-columns:1fr 1.3fr;gap:90px}.questions-section .text-link{margin-top:25px}.faq-list{border-top:1px solid var(--border);min-width:0}.faq-list details{border-bottom:1px solid var(--border)}.faq-list summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:25px;padding:24px 0;font-size:14px;cursor:pointer;font-weight:500}.faq-list summary::-webkit-details-marker{display:none}.faq-plus{width:13px;height:13px;position:relative;flex-shrink:0}.faq-plus::before,.faq-plus::after{content:'';position:absolute;left:0;top:6px;width:13px;height:1px;background:var(--muted)}.faq-plus::after{transform:rotate(90deg);transition:transform .2s}details[open] .faq-plus::after{transform:rotate(0deg)}.faq-answer{padding:0 35px 23px 0}.faq-answer p{font-size:14px;line-height:1.9}.closing-section{padding-bottom:95px}.closing-card{border-radius:24px;background:var(--warm);color:#111;padding:65px 70px;position:relative;overflow:hidden}.closing-card .eyebrow{color:#6f6c65}.closing-card h2{font-size:clamp(34px,4vw,51px);margin:18px 0 17px;max-width:700px}.closing-card>p{color:#67645e;font-size:15px;line-height:1.9;max-width:480px}.closing-card .button-row{margin-top:29px;gap:26px}.closing-contact{display:inline-flex;align-items:center;gap:16px;font-size:13px}

.site-footer{border-top:1px solid var(--border)}.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:45px;padding-block:64px 60px}.footer-brand>p{margin-top:23px;font-size:14px;line-height:1.9}.contact-email{display:inline-block;margin-top:22px;font-size:13px;color:var(--ink);overflow-wrap:anywhere}.footer-column h2{font-family:Inter,sans-serif;letter-spacing:0;font-size:13px;font-weight:500;line-height:1.5;margin:8px 0 22px}.footer-column a{display:block;margin-top:12px;font-size:13px;color:var(--muted);line-height:1.6}.footer-column a:hover{color:var(--ink)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-block:20px 25px;border-top:1px solid var(--border);font-size:11px;color:var(--muted)}.footer-bottom a{display:inline-flex;align-items:center;gap:10px}.footer-bottom svg{width:12px;height:12px}

.page-intro{padding-top:91px;padding-bottom:63px}.page-intro h1{font-size:clamp(42px,5.2vw,70px);margin-top:21px;max-width:1030px;line-height:1.1}.page-intro>p{max-width:630px;margin-top:26px;font-size:16px;line-height:1.9}.purchase-details{display:grid;grid-template-columns:1fr 1fr;gap:100px}.purchase-details h2{font-size:36px;margin-top:13px;margin-bottom:23px;max-width:440px}.purchase-details p{font-size:15px;line-height:1.9;margin-top:15px}.purchase-details .text-link{margin-top:26px}.detail-box{padding:30px;border:1px solid var(--border);border-radius:17px;background:var(--surface)}.detail-box h3{margin-bottom:19px}.detail-box>.plain-list{gap:19px}.compact-faq{max-width:850px;padding-top:60px}.compact-faq>h2{font-size:38px;margin-bottom:35px}.policy-links{margin-top:27px;font-size:13px;line-height:1.8}.policy-links a{text-decoration:underline;text-underline-offset:3px}.explanation-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:45px}.explanation-grid p{font-size:14px;line-height:1.9;margin-top:16px}.info-banner{display:flex;justify-content:space-between;align-items:center;gap:40px;padding:27px 32px;border:1px solid var(--border);border-radius:14px;margin-top:48px;background:var(--surface)}.info-banner p{font-size:14px;line-height:1.9;max-width:800px}.info-banner strong{color:var(--ink);font-weight:500}.info-banner>a{flex-shrink:0}.attribution-section{padding-bottom:98px;max-width:760px;text-align:center}.attribution-section h2{font-size:42px;margin:19px 0}.attribution-section>p{font-size:15px;line-height:1.9}.attribution-section .text-link{margin-top:25px}.requirements-section{padding-top:0}.requirements-section>h2{font-size:34px;margin-bottom:32px}.requirements-list{margin:0}.requirements-list>div{display:grid;grid-template-columns:240px 1fr;gap:60px;padding:26px 0;border-top:1px solid var(--border)}.requirements-list>div:last-child{border-bottom:1px solid var(--border)}.requirements-list dt{font-size:15px;font-weight:500}.requirements-list dd{margin:0;max-width:720px;color:var(--muted);font-size:14px;line-height:1.9}.device-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.device-card{padding:35px;border:1px solid var(--border);border-radius:18px;background:var(--surface)}.device-card h3{font-family:Raleway,sans-serif;font-size:31px;line-height:1.2;font-weight:400;margin:28px 0 20px}.device-card>p{font-size:14px;line-height:1.9;max-width:410px}.device-card .plain-list{border-top:1px solid var(--border);margin-top:26px;padding-top:26px}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.contact-card{padding:37px;border:1px solid var(--border);border-radius:18px;background:var(--surface);transition:border-color .2s,transform .2s}.contact-card:hover{border-color:var(--muted);transform:translateY(-3px)}.contact-card h2{font-size:36px;margin:25px 0 19px}.contact-card p{font-size:14px;line-height:1.9;max-width:340px}.contact-address{display:flex;gap:20px;justify-content:space-between;align-items:center;margin-top:35px;padding-top:23px;border-top:1px solid var(--border);font-size:14px;overflow-wrap:anywhere}.support-shortcuts{display:grid;gap:15px;border-top:1px solid var(--border);margin-top:27px;padding-top:22px}.support-shortcuts a{font-size:13px;display:flex;align-items:center;justify-content:space-between}.legal-layout{display:grid;grid-template-columns:225px 1fr;gap:100px;padding-bottom:115px}.legal-nav{align-self:start;position:sticky;top:116px;display:grid;gap:16px}.legal-nav>a{font-size:14px;color:var(--muted)}.legal-nav>a[aria-current="page"],.legal-nav>a:hover{color:var(--ink)}.legal-contact{border-top:1px solid var(--border);margin-top:16px;padding-top:24px;display:grid;gap:11px}.legal-contact strong{font-size:14px;font-weight:500}.legal-contact>a{font-size:12px;overflow-wrap:anywhere;color:var(--muted)}.legal-content{min-width:0}.legal-content>section+section{border-top:1px solid var(--border);margin-top:70px;padding-top:55px}.legal-section-heading{padding-bottom:26px;border-bottom:1px solid var(--border);margin-bottom:28px}.legal-section-heading h2{font-size:32px}.legal-section-heading p{font-size:12px;margin-top:10px}.legal-content article{font-size:15px;line-height:1.9}.legal-content article h2{font-family:Inter,sans-serif;font-weight:500;font-size:15px;letter-spacing:-.01em;line-height:1.5;margin:29px 0 12px}.legal-content article p{margin:12px 0}.legal-content article a{text-decoration:underline;text-underline-offset:3px;color:var(--ink)}

@media(min-width:1500px){.hero{padding-top:78px}.hero-copy{max-width:960px}.hero h1{font-size:122px}.hero-description{max-width:690px;font-size:15px}.product-showcase{margin-top:66px}}
@media(max-width:1050px){.wrap{width:calc(100% - 48px)}.header-inner{width:calc(100% - 40px)}.main-nav{gap:19px}.header-actions{gap:8px}.feature-grid{grid-template-columns:repeat(2,1fr)}.feature-card{min-height:270px}.feature-symbol{margin-bottom:27px}.abcurves-grid{gap:42px}.hardware-layout{gap:35px}.questions-section{gap:45px}.price-card{padding:24px}.price-description{font-size:13px}.pricing-footnotes{gap:25px}.footer-main{gap:30px}.purchase-details{gap:50px}.legal-layout{gap:55px}.section{padding-block:85px}}
@media(max-width:820px){.header-inner{height:68px}.main-nav{position:absolute;left:0;right:0;top:68px;display:none;background:var(--bg);padding:20px 25px 28px;border-bottom:1px solid var(--border);box-shadow:0 20px 40px rgba(0,0,0,.15)}.main-nav.is-open{display:grid;gap:4px}.main-nav>a{font-size:16px;padding:12px}.main-nav .mobile-account{display:flex;justify-content:space-between;border-top:1px solid var(--border);margin-top:9px;padding-top:19px}.menu-button{width:36px;height:38px;border:0;background:transparent;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;border-radius:7px}.menu-button span{width:18px;height:1px;background:var(--ink);transition:transform .2s}.menu-button[aria-expanded="true"] span:first-child{transform:translateY(3.5px) rotate(45deg)}.menu-button[aria-expanded="true"] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}.desktop-account{display:none}.hero{padding-top:42px}.hero h1{font-size:clamp(60px,10.5vw,86px)}.hero-description{font-size:15px;max-width:590px}.abcurves-grid{grid-template-columns:1fr;gap:40px}.abcurves-copy>p{max-width:600px}.curve-module{max-width:620px;width:100%;justify-self:center}.hardware-layout{grid-template-columns:1fr}.hardware-notes{grid-template-columns:repeat(3,1fr);gap:24px}.hardware-notes article{border:0;padding:0}.hardware-notes h3{font-size:16px}.hardware-notes p{font-size:14px}.steps-grid{grid-template-columns:repeat(2,1fr);gap:35px}.pricing-grid{gap:12px}.price-card{padding:23px 17px}.price-value{font-size:56px}.price-period{font-size:11px;min-height:34px}.price-description{min-height:60px}.price-card>.button{font-size:12px;gap:10px;padding-inline:15px}.price-features{font-size:12px}.pricing-footnotes{display:grid;gap:14px}.questions-section{grid-template-columns:1fr;gap:35px}.questions-section .text-link{margin-top:17px}.footer-main{grid-template-columns:1.3fr 1fr 1fr;gap:40px}.footer-brand{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;column-gap:40px}.footer-brand>p{margin:0}.contact-email{margin-top:14px}.footer-bottom{flex-wrap:wrap}.purchase-details{gap:35px}.contact-card{padding:28px}.contact-card h2{font-size:29px}.contact-address{font-size:12px}.requirements-list>div{grid-template-columns:180px 1fr;gap:30px}.legal-layout{grid-template-columns:180px 1fr;gap:30px}.explanation-grid{gap:25px}.info-banner{align-items:flex-start;flex-direction:column;gap:20px}.closing-card{padding:50px}}
@media(max-width:600px){.wrap{width:calc(100% - 36px)}.header-inner{width:calc(100% - 32px)}.wordmark{font-size:20px}.hero{padding-top:34px}.announcement{font-size:11px;gap:8px}.hero-eyebrow{font-size:11px;letter-spacing:.1em;margin-top:31px}.hero h1{font-size:74px;line-height:1.04}.hero h1 br{display:block}.hero-serif{margin-left:0}.hero-description{font-size:14px;line-height:1.9;margin-top:24px;max-width:420px}.button{min-height:46px;padding:12px 20px;font-size:13px;gap:19px}.hero .button-row{gap:9px}.hero-details{font-size:11px;gap:10px}.hero-details span+span::before{margin-right:10px}.product-showcase{margin-top:46px}.showcase-heading{align-items:flex-start;flex-direction:column;gap:18px;margin-bottom:18px}.showcase-title h2{font-size:28px}.showcase-appearance{justify-items:start}.appearance-label{display:none}.appearance-switch button{min-height:40px;min-width:111px}.showcase-stage{padding:5px;border-radius:16px}.preview-shot{border-radius:11px}.product-showcase figcaption{padding:15px 1px 0;align-items:flex-start;gap:12px;font-size:11px}.showcase-caption-copy{display:grid;gap:4px}.showcase-caption-copy strong,.showcase-expand a{font-size:11px}.product-strip{font-size:10px;letter-spacing:.12em;padding-block:23px}.section{padding-block:65px}.section-heading{display:block;margin-bottom:31px}.section-heading h2,.abcurves-copy h2,.questions-section h2{font-size:34px;margin-top:13px}.section-heading p{font-size:14px;margin-top:18px}.section-aside{margin-top:22px}.eyebrow{font-size:11px}.section-number{margin-right:14px}.feature-grid{gap:10px}.feature-card{padding:22px 17px;min-height:275px;border-radius:13px}.feature-symbol{width:68px;height:50px;margin-bottom:27px}.card-index{top:21px;right:15px;font-size:11px}.feature-card h3{font-size:16px;line-height:1.5}.feature-card p{font-size:14px;line-height:1.85}.curve-module{padding:20px 17px;border-radius:17px}.curve-controls button{font-size:11px}.curve-controls button>span{font-size:10px;margin-right:5px}.abcurves-copy>p{font-size:14px}.plain-list{font-size:13px}.curve-explanation{font-size:14px;min-height:38px}.diagram-note{font-size:11px}.hardware-layout{gap:27px}.hardware-notes{grid-template-columns:1fr;gap:23px}.hardware-notes article{border-bottom:1px solid var(--border);padding-bottom:23px}.hardware-notes h3{font-size:17px}.hardware-notes p{font-size:14px}.steps-grid{gap:29px 21px}.step-number{margin-bottom:21px}.steps-grid h3{font-size:16px}.steps-grid p{font-size:14px}.pricing-grid{grid-template-columns:1fr;gap:17px}.price-card{padding:29px;max-width:460px;width:100%;margin-inline:auto}.price-value{font-size:65px;margin-top:25px}.price-period{min-height:0;font-size:13px}.price-description{min-height:0;font-size:14px;max-width:100%}.price-card>.button{font-size:14px}.price-features{font-size:14px}.pricing-footnotes{font-size:12px}.faq-list summary{font-size:14px;padding:21px 0}.faq-answer p{font-size:14px}.closing-section{padding-bottom:60px}.closing-card{padding:37px 25px;border-radius:18px}.closing-card h2{font-size:36px}.closing-card>p{font-size:14px}.closing-card .button-row{gap:22px}.footer-main{grid-template-columns:1fr 1fr;padding-block:45px;gap:33px 25px}.footer-brand{display:block}.footer-brand>p{margin-top:20px}.footer-column h2{margin-bottom:19px}.footer-bottom{display:grid;gap:9px;padding-block:21px;font-size:11px}.page-intro{padding-top:55px;padding-bottom:43px}.page-intro h1{font-size:43px}.page-intro>p{font-size:14px;margin-top:22px}.purchase-details{grid-template-columns:1fr;gap:29px}.purchase-details h2{font-size:33px}.purchase-details p{font-size:14px}.detail-box{padding:24px}.compact-faq{padding-top:40px}.compact-faq>h2{font-size:32px}.explanation-grid{grid-template-columns:1fr;gap:30px}.explanation-grid .step-number{margin-bottom:16px}.attribution-section{padding-bottom:65px}.attribution-section h2{font-size:34px}.attribution-section>p{font-size:14px}.requirements-section{padding-top:0}.requirements-list>div{grid-template-columns:1fr;gap:10px;padding-block:21px}.requirements-list dt{font-size:14px}.requirements-list dd{font-size:14px}.device-grid{grid-template-columns:1fr}.device-card{padding:27px}.device-card h3{font-size:29px}.info-banner{padding:23px;margin-top:29px}.info-banner p{font-size:13px}.contact-grid{grid-template-columns:1fr;gap:16px}.contact-card h2{font-size:31px}.contact-address{font-size:14px}.legal-layout{grid-template-columns:1fr;gap:35px;padding-bottom:65px}.legal-nav{position:static;display:flex;flex-wrap:wrap;gap:13px 22px;border-bottom:1px solid var(--border);padding-bottom:23px}.legal-nav>a{font-size:13px}.legal-contact{width:100%;margin-top:0;padding-top:18px;gap:7px}.legal-content article{font-size:14px}.legal-content article h2{font-size:16px}.legal-section-heading h2{font-size:29px}}
.product-showcase figcaption a:hover{text-decoration:underline;text-underline-offset:3px}
/* Motion adds depth; the static layout never depends on it. */
.reading-progress{position:absolute;left:0;bottom:-1px;width:100%;height:2px;background:var(--ink);opacity:.65;transform:scaleX(0);transform-origin:left;pointer-events:none}
.hero{position:relative;isolation:isolate}.hero-word-frame{display:inline-block;vertical-align:bottom;overflow:clip;padding:0 .07em .12em .02em;margin-right:-.07em;margin-bottom:-.12em}.hero-word{display:inline-block}.hero-word-frame.hero-serif{padding-right:.1em;margin-right:-.1em}
.main-nav>a{position:relative}.main-nav>a::after{content:'';position:absolute;bottom:3px;left:0;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .3s cubic-bezier(.2,1,.3,1)}.main-nav>a:hover::after,.main-nav>a[aria-current="page"]::after{transform:scaleX(1)}
.button svg,.announcement svg,.closing-contact svg{transition:transform .3s cubic-bezier(.2,1,.3,1)}.button:hover svg,.announcement:hover svg,.closing-contact:hover svg{transform:translateX(4px)}.button:active{transform:translateY(0) scale(.98)}
.feature-card,.price-card,.device-card{transition:transform .5s cubic-bezier(.2,1,.3,1),border-color .4s,box-shadow .5s}.feature-card{overflow:hidden}.feature-card::before{content:'';position:absolute;inset:0;background:linear-gradient(125deg,transparent 20%,rgba(160,160,150,.08) 48%,transparent 75%);opacity:0;transform:translateX(-25%);transition:opacity .5s,transform .7s cubic-bezier(.2,1,.3,1);pointer-events:none}.feature-symbol{transition:transform .6s cubic-bezier(.2,1,.3,1)}
@media(hover:hover) and (pointer:fine){.feature-card:hover,.price-card:hover,.device-card:hover{transform:translateY(-7px);border-color:var(--heading-muted);box-shadow:0 24px 45px rgba(0,0,0,.12)}.feature-card:hover::before{opacity:1;transform:translateX(0)}.feature-card:hover .feature-symbol{transform:translateY(-4px) rotate(-3deg)}.product-showcase:hover .showcase-stage{border-color:var(--heading-muted)}}
.curve-active-trace{fill:none;stroke:var(--curve-accent);stroke-width:2.5;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:1;opacity:0;pointer-events:none}.curve-runner{fill:var(--curve-accent);opacity:0;filter:drop-shadow(0 0 5px var(--curve-glow));pointer-events:none}.curve-ring{transform-box:fill-box;transform-origin:center}.curve-controls button{transition:background .25s,color .25s,box-shadow .25s}.curve-controls button:hover{box-shadow:inset 0 0 0 1px var(--curve-hover)}.curve-controls button[aria-pressed="true"]{box-shadow:0 3px 12px var(--curve-shadow)}
@media(max-width:820px){.main-nav>a::after{left:12px;width:calc(100% - 24px);bottom:8px}}
@media(prefers-reduced-motion:reduce){.reading-progress,.curve-runner,.curve-active-trace{display:none}.feature-card:hover,.price-card:hover,.device-card:hover,.feature-card:hover .feature-symbol,.button:hover,.button:active{transform:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}


/* Shared vector contour artwork. Decorative only, beneath the content layer. */
#root{position:relative;isolation:isolate}
.topographic-backdrop{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none;contain:strict}.topographic-wallpaper{--topo-tile-height:900px;position:absolute;top:0;left:0;right:0;bottom:calc(-1 * var(--topo-tile-height));pointer-events:none;background-image:url('/assets/topographic-dark.svg?v=20260917-smooth');background-size:1440px 900px;background-repeat:repeat;opacity:.14;contain:strict}

.hero-copy{position:relative;isolation:isolate}.hero-copy::before{content:'';position:absolute;inset:-28px -18px;z-index:-1;pointer-events:none;background:radial-gradient(ellipse at center,var(--bg) 28%,transparent 76%);opacity:.88}
.abcurves-section,.pricing-section{background:color-mix(in srgb,var(--surface) 84%,transparent)}
@media(max-width:600px){.topographic-wallpaper{--topo-tile-height:625px;-webkit-mask-size:1000px 625px;mask-size:1000px 625px}.hero-copy::before{inset:-18px -10px}}

.availability-note{margin-bottom:22px;padding:16px 20px;border:1px solid var(--border);border-radius:12px;background:var(--surface);color:var(--muted);font-size:14px;line-height:1.7}

@media(prefers-reduced-motion:reduce){.topographic-wallpaper{transform:none!important;will-change:auto!important}}

[data-theme="light"] .topographic-wallpaper{background-image:url('/assets/topographic.svg?v=20260917-smooth');opacity:.12}