.kfl{container-type:inline-size;--kfl-ink:#0f0f0f;--kfl-paper:#fcfbf9;--kfl-muted:#696565;--kfl-line:#dddad5;color:var(--kfl-ink);background:var(--kfl-paper);font-family:var(--FONT-STACK-BODY,Inter,Arial,sans-serif);font-size:16px;line-height:1.5;letter-spacing:0;text-align:left}
.kfl *{box-sizing:border-box}.kfl [hidden]{display:none!important}.kfl h1,.kfl h2,.kfl p,.kfl figure,.kfl blockquote,.kfl fieldset{margin:0}.kfl h1,.kfl h2{font-family:inherit;text-transform:none;font-style:normal;letter-spacing:-.6px;font-weight:600}.kfl h1{font-size:36px;line-height:40px}.kfl h2{font-size:28px;line-height:33px}.kfl img{display:block;max-width:100%;height:auto}.kfl a{color:inherit}.kfl button,.kfl input,.kfl select{font:inherit;letter-spacing:inherit}.kfl button{cursor:pointer}.kfl :focus-visible{outline:3px solid #557b91;outline-offset:4px}.kfl-wrap{width:100%;max-width:1440px;margin:auto;padding-left:20px;padding-right:20px}.kfl-copy{display:flex;flex-direction:column;gap:16px;min-width:0}.kfl-two{display:grid;gap:24px}.kfl-small{font-size:14px;line-height:21px}.kfl-muted{color:var(--kfl-muted)}.kfl-eyebrow{font-size:11px;font-weight:600;line-height:16px;letter-spacing:.88px;text-transform:uppercase;color:var(--kfl-muted)}
.kfl-button{display:flex;align-items:center;justify-content:center;min-height:52px;width:100%;padding:14px 24px;border:1px solid var(--kfl-ink);border-radius:4px;background:var(--kfl-ink);color:#fff!important;text-decoration:none;font-size:15px;font-weight:500;line-height:22px;text-align:center;transition:background .15s}.kfl-button:hover{background:#303030}.kfl-button:disabled{cursor:not-allowed;opacity:.5}.kfl-action{display:flex;flex-direction:column;gap:8px}.kfl-text-button{padding:0;border:0;background:none;text-decoration:underline;text-underline-offset:3px;color:inherit;display:inline-block}.kfl-hero{display:grid;background:#fff}.kfl-hero-photo{position:relative;aspect-ratio:390/320;overflow:hidden}.kfl-hero-photo img{width:100%;height:100%;object-fit:cover;object-position:center 5.5%}.kfl-hero-copy{padding:24px 20px;display:flex;flex-direction:column;gap:12px}.kfl-rating{display:flex;gap:12px;align-items:center;font-size:12px;line-height:18px;color:var(--kfl-muted)!important;text-decoration:none}.kfl-rating-stars{position:relative;display:block;width:87px;height:16px;flex-shrink:0}.kfl-rating-stars img{width:87px;height:16px;max-width:none}.kfl-star-base{filter:grayscale(1);opacity:.25}.kfl-rating-stars>span{position:absolute;left:0;top:0;height:16px;overflow:hidden}.kfl-subhead{font-size:16px;line-height:24px}.kfl-press{background:#fff}.kfl-press>.kfl-wrap{display:flex;align-items:center;gap:16px;padding-top:20px;padding-bottom:20px}.kfl-press>.kfl-wrap>a{width:120px;flex:0 0 120px}.kfl-press img{width:120px;height:auto}.kfl-press p{font-size:14px;line-height:21px;margin-bottom:4px}.kfl-press div>div>a{font-size:12px;color:var(--kfl-muted);text-decoration:underline;text-underline-offset:3px}.kfl-reason{padding:32px 0}.kfl-reason-photo{aspect-ratio:350/280;border-radius:12px;overflow:hidden}.kfl-reason-photo img{width:100%;height:100%;object-fit:cover}.kfl-reason-3 .kfl-reason-photo img{object-position:center 20%}.kfl-reason-4 .kfl-reason-photo{aspect-ratio:350/320}.kfl-reason-4 .kfl-reason-photo img{object-position:center top}.kfl-reason-5 .kfl-reason-photo img{object-position:center 30%}.kfl-review{padding:16px;background:#ededee;border-radius:12px;display:flex;flex-direction:column;gap:8px}.kfl-review figcaption{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;line-height:18px;color:var(--kfl-muted)}.kfl-review figcaption img{width:76px;height:14px}.kfl-review blockquote{padding:0;border:0;font-size:14px;line-height:21px;font-style:normal;color:var(--kfl-ink)}.kfl-review blockquote:before,.kfl-review blockquote:after{content:none}.kfl-patent{display:flex;flex-direction:column;gap:4px;padding:16px;border-left:3px solid #7a99ac;border-radius:12px;background:#eef2f3}.kfl-patent strong{font-weight:600;font-size:18px;line-height:24px}.kfl-patent span{font-size:12px;line-height:18px}
.kfl-purchase{background:white;padding:40px 0}.kfl-purchase>.kfl-wrap{padding-left:24px;padding-right:24px}.kfl-product-photo{aspect-ratio:4/3;overflow:hidden;background:#faf7f4}.kfl-product-photo img{width:100%;height:100%;object-fit:cover}.kfl-product-choices{scroll-margin-top:calc(var(--header-height,80px) + 20px);outline:none}.kfl-name-price{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.kfl-name-price h2{font-size:28px;line-height:34px;font-weight:500;letter-spacing:-.84px}.kfl-name-price>span{font-size:24px;line-height:30px;white-space:nowrap}.kfl-form,.kfl-form form{display:block;width:100%}.kfl fieldset{padding:0;border:0;min-width:0}.kfl legend{font-size:14px;line-height:21px;float:none;padding:0;margin-bottom:8px;width:100%}.kfl-colors .kfl-eyebrow{margin:8px 0 4px}.kfl-swatches{display:flex;gap:4px;flex-wrap:wrap}.kfl-swatch{position:relative;display:flex;align-items:center;justify-content:center;width:44px;height:44px;cursor:pointer}.kfl-swatch input,.kfl-fit-options input{position:absolute;opacity:0;inset:0;width:100%;height:100%;cursor:pointer;margin:0;z-index:2}.kfl-swatch-dot{display:block;width:34px;height:34px;border-radius:50%;background:var(--swatch);box-shadow:inset 0 0 0 1px #00000015;position:relative}.kfl-swatch-dot img{width:100%;height:100%;object-fit:cover;border-radius:50%}.kfl-swatch input:checked+.kfl-swatch-dot{outline:1px solid #0f0f0f;outline-offset:3px}.kfl-swatch input:focus-visible+.kfl-swatch-dot{outline:3px solid #557b91;outline-offset:3px}.kfl-swatch[data-unavailable=true] .kfl-swatch-dot:after{content:"";position:absolute;left:0;top:50%;width:100%;height:2px;background:#fff;box-shadow:0 0 1px #222;transform:rotate(-45deg)}.kfl-fit{position:relative;margin-top:20px!important}.kfl-fit legend{display:flex;justify-content:space-between;align-items:center;gap:16px}.kfl-size-link{font-size:14px;line-height:21px;min-height:44px;margin-top:-8px;margin-bottom:-8px;white-space:nowrap}.kfl-fit-options{display:flex;gap:8px}.kfl-fit-options label{position:relative;min-width:112px;display:flex;cursor:pointer}.kfl-fit-options span{display:flex;min-height:52px;align-items:center;justify-content:center;width:100%;padding:12px 24px;border:1px solid #696565;border-radius:4px;font-size:15px;font-weight:500}.kfl-fit-options input:checked+span{color:#fff;background:#0f0f0f;border-color:#0f0f0f}.kfl-fit-options input:focus-visible+span{outline:3px solid #557b91;outline-offset:3px}.kfl-fit-options label[data-unavailable=true] span{text-decoration:line-through;text-decoration-thickness:1px}.kfl-fit-note{display:flex;flex-direction:column;gap:4px;margin:12px 0 16px}.kfl-unavailable{margin:0 0 12px!important;color:#7b1c28}.kfl-purchase-action{display:flex;flex-direction:column;gap:8px}.kfl-reassurance{text-align:center;font-size:12px;line-height:18px;letter-spacing:.1px}.kfl-reassurance a{text-decoration:underline;text-underline-offset:3px}.kfl-form select{width:100%;margin-bottom:16px}.kfl-google{font-size:14px}.kfl-details-link{font-size:14px;text-decoration:underline;text-underline-offset:3px}.kfl .errors{margin-top:12px;font-size:14px}
.kfl-founder{background:#eef2f3;padding:40px 0}.kfl-founder>.kfl-wrap{display:grid;gap:20px}.kfl-founder-intro{display:flex;gap:20px;align-items:flex-start}.kfl-founder-intro>img{width:112px;height:120px;object-fit:cover;flex-shrink:0}.kfl-founder-intro>div{display:flex;flex-direction:column;gap:8px}.kfl-founder-intro h2{font-size:24px;line-height:30px;font-weight:500;letter-spacing:-.3px;max-width:220px}.kfl-founder-desktop{display:none}.kfl-stat{display:flex;flex-direction:column;gap:4px}.kfl-stat strong{font-size:24px;line-height:30px;font-weight:500;letter-spacing:-.3px}.kfl-stat span{font-size:14px;line-height:21px;color:var(--kfl-muted)}.kfl-faq{background:#fff;padding:40px 0}.kfl-faq>.kfl-wrap{display:grid;gap:24px}.kfl-faq h2{font-size:30px;line-height:35px;font-weight:500}.kfl-faq details{padding:20px 0;border-bottom:1px solid var(--kfl-line)}.kfl-faq summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;font-size:16px;line-height:24px}.kfl-faq summary::-webkit-details-marker{display:none}.kfl-faq summary:after{content:"+";font-size:20px;flex-shrink:0}.kfl-faq details[open] summary:after{content:"−"}.kfl-faq details p{margin-top:12px;font-size:14px;line-height:21px;color:var(--kfl-muted)}.kfl-closing{background:#0f0f0f;color:white;padding:40px 0}.kfl-closing>.kfl-wrap:first-child{display:grid;gap:24px}.kfl-closing h2{color:white;font-size:30px;line-height:34px;font-weight:500}.kfl-button-white{background:white!important;color:#0f0f0f!important;border-color:white}.kfl-button-white:hover{background:#ededee!important}.kfl-tagline{padding-top:32px;font-size:16px;color:#d5d5d5}.kfl-size-dialog{position:fixed;inset:0;margin:auto;border:0;border-radius:12px;max-width:min(560px,calc(100vw - 32px));max-height:calc(100dvh - 40px);padding:32px 24px;color:#0f0f0f;background:white;overflow:auto}.kfl-size-dialog::backdrop{background:#0009}.kfl-size-dialog h2{margin:0 30px 20px 0}.kfl-size-dialog p{margin:0 0 16px}.kfl-size-dialog strong{display:block;margin-bottom:4px}.kfl-size-dialog>a{font-size:14px;text-decoration:underline}.kfl-dialog-close{position:absolute;right:8px;top:8px;width:44px;height:44px;display:grid;place-items:center;border:0;background:none;font-size:30px!important}.kfl-size-dialog .kfl-small{margin-top:16px}
@container(min-width:750px) and (max-width:989px){.kfl-wrap{padding-left:40px;padding-right:40px}.kfl-hero{grid-template-columns:1fr 1fr}.kfl-hero-photo{aspect-ratio:auto;min-height:480px}.kfl-hero-copy{justify-content:center;padding:32px}.kfl h1{font-size:32px;line-height:37px}.kfl-reason-photo{max-height:560px}.kfl-product-photo{max-width:560px}.kfl-founder-intro h2{max-width:none}}
@container(min-width:990px){.kfl-wrap{padding-left:clamp(32px,5.556vw,80px);padding-right:clamp(32px,5.556vw,80px)}.kfl h2{font-size:40px;line-height:45px}.kfl-hero{grid-template-columns:1fr 1fr;max-width:1600px;margin:auto}.kfl-hero-photo{aspect-ratio:720/620;min-height:560px}.kfl-hero-photo img{object-position:center 3.5%}.kfl-hero-copy{padding:clamp(32px,5.556vw,80px);justify-content:center;gap:16px}.kfl h1{font-size:clamp(40px,4.03vw,58px);line-height:1.069}.kfl-subhead{font-size:20px;line-height:29px}.kfl-hero .kfl-button{max-width:360px}.kfl-press>.kfl-wrap{padding-top:24px;padding-bottom:24px;gap:32px}.kfl-press>.kfl-wrap>div{display:flex;align-items:center;justify-content:space-between;gap:32px;flex:1}.kfl-press p{font-size:24px;line-height:30px;margin:0}.kfl-reason{padding:48px 0}.kfl-two{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(32px,4.445vw,64px);align-items:center}.kfl-reason-photo{aspect-ratio:608/440}.kfl-reason-4 .kfl-reason-photo{aspect-ratio:608/520}.kfl-reason-3 .kfl-reason-photo img{object-position:center 14.4%}.kfl-reason-5 .kfl-reason-photo img{object-position:center 27%}.kfl-purchase{padding:56px 0}.kfl-purchase>.kfl-wrap{padding-left:clamp(32px,5.556vw,80px);padding-right:clamp(32px,5.556vw,80px);align-items:start}.kfl-product-photo{aspect-ratio:608/500}.kfl-name-price h2{font-size:36px;line-height:42px}.kfl-founder{padding:64px 0}.kfl-founder>.kfl-wrap{grid-template-columns:260px minmax(0,1fr);gap:48px}.kfl-founder-intro>div{display:none}.kfl-founder-intro>img{width:260px;height:265px}.kfl-founder-desktop{display:flex;flex-direction:column;gap:16px}.kfl-founder-desktop h2{font-size:42px;line-height:47px;font-weight:500;letter-spacing:-1px}.kfl-founder-body>p:not(.kfl-small){font-size:18px;line-height:28px}.kfl-faq{padding:64px 0}.kfl-faq>.kfl-wrap{grid-template-columns:384fr 848fr;gap:48px}.kfl-faq h2{font-size:42px;line-height:47px}.kfl-closing{padding:64px 0}.kfl-closing>.kfl-wrap:first-child{grid-template-columns:minmax(0,1fr) 400px;gap:64px;align-items:center}.kfl-closing h2{font-size:42px;line-height:47px}.kfl-size-dialog h2{font-size:30px;line-height:35px}}
@media(prefers-reduced-motion:reduce){.kfl *{scroll-behavior:auto!important;transition:none!important}}