/* ZEST conversion layer: graphite, coral, cream and the established serif. */
.zest-page .product-hero{padding:40px 0;gap:6%;grid-template-columns:1.05fr 1fr}
.zest-page .product-hero h1{font-size:clamp(48px,5.1vw,68px);line-height:1.06;letter-spacing:-.045em;margin:18px 0}
.zest-brand-line{color:var(--accent);font-size:15px;font-weight:600;margin:0 0 18px}.zest-page .product-hero .lead{font-size:18px;line-height:1.6;margin:0 0 25px}
.zest-hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:24px}.zest-secondary{display:inline-flex;align-items:center;min-height:44px;gap:14px;border-bottom:1px solid var(--line);font-size:14px}.zest-secondary:hover{border-color:var(--accent)}.zest-hero-offer strong{color:var(--ink);font-weight:650}
.zest-landing-puzzle.zest-playable{display:block;padding:25px;background:radial-gradient(ellipse at 80% 20%,#f17c5a18,transparent 65%),var(--wash);border:1px solid var(--line);overflow:visible;min-width:0}
.zest-puzzle-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}.zest-puzzle-heading>span:first-child{font:700 30px/1 var(--heading);letter-spacing:-.04em}.zest-puzzle-heading>span:last-child{font-size:9px;letter-spacing:.13em;color:var(--muted)}
.zest-playable.zest-landing-puzzle .playable-board{position:relative;top:auto;left:auto;transform:none;translate:none;width:100%;height:auto;aspect-ratio:1;box-shadow:0 16px 30px #0003;border-width:3px;border-radius:18px;margin:0}
.zest-landing-puzzle .puzzle-tools{position:relative;inset:auto;gap:14px;margin-top:20px}.zest-landing-puzzle .puzzle-tools p{font-size:12px;color:var(--ink)}.zest-landing-puzzle .puzzle-tools .puzzle-status{font-size:10px;color:var(--muted);min-height:16px;margin-top:5px}.zest-landing-puzzle .puzzle-tools .puzzle-shuffle{font-size:12px;padding:12px 17px;border-color:var(--line);background:var(--paper);color:var(--ink);cursor:pointer}.zest-landing-puzzle .puzzle-shuffle:hover{border-color:var(--accent)}
.zest-landing-puzzle noscript img{height:auto;width:100%;object-fit:contain}.zest-landing-puzzle:has(noscript img) .playable-board{display:none}
.zest-context-download{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:30px 32px;border:1px solid var(--line);border-radius:var(--radius);background:var(--wash);margin:0 0 36px}
.zest-context-download h2,.zest-context-download h3{font:600 clamp(26px,3vw,34px)/1.15 var(--heading);letter-spacing:-.025em;margin:0 0 12px}.zest-context-download .eyebrow{color:var(--accent);margin:0 0 12px}.zest-context-download p:not(.eyebrow){font-size:16px;line-height:1.65;color:var(--muted);max-width:650px;margin:0 0 10px}.zest-context-download small{font-size:12px;line-height:1.6;color:var(--muted)}
.zest-gallery-heading{margin-top:60px}.zest-gallery-heading .eyebrow{color:var(--accent)}.zest-gallery-heading h3{font:600 32px/1.2 var(--heading);letter-spacing:-.03em;margin:12px 0}.zest-gallery-heading>p:last-child{color:var(--muted);font-size:16px;line-height:1.65}.zest-gallery-download{margin:36px 0 0;background:transparent;border-inline:0;border-bottom:0;border-radius:0;padding:30px 0 0}
.zest-start{display:grid;grid-template-columns:1.1fr 1fr;gap:9%;border-top:1px solid var(--line)}.zest-start .eyebrow{color:var(--accent)}.zest-start .section-title{font-size:clamp(36px,4vw,52px)}.zest-start .section-intro{margin-bottom:26px}.zest-offer-card{background:var(--wash);padding:32px;border:1px solid var(--line);border-radius:var(--radius);align-self:center}.zest-offer-card ul{padding:0;margin:22px 0 0;list-style:none}.zest-offer-card li{padding:20px 0;border-top:1px solid var(--line)}.zest-offer-card li:last-child{padding-bottom:0}.zest-offer-card strong{display:block;font-size:18px;font-weight:600;margin-bottom:8px}.zest-offer-card li span{display:block;font-size:15px;line-height:1.6;color:var(--muted)}
.zest-page .duo-section{padding:0 0 54px;border:0}.zest-device-details{border-block:1px solid var(--line)}.zest-device-details summary{display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;min-height:72px;padding:18px 0;font-size:17px;list-style:none}.zest-device-details summary span{font-size:12px;color:var(--muted)}.zest-device-details summary:after{content:'+';color:var(--accent);font-size:24px}.zest-device-details[open] summary:after{content:'−'}.zest-device-details summary::-webkit-details-marker{display:none}.zest-device-details>div{padding:20px 0 32px}
.zest-mobile-download{display:none}.zest-mobile-download[hidden]{display:none!important}
.zest-page button:focus-visible,.zest-secondary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
@media(max-width:700px){.zest-page{padding-bottom:calc(94px + env(safe-area-inset-bottom,0px))}.zest-mobile-download{display:flex;position:fixed;inset:auto 12px calc(10px + env(safe-area-inset-bottom,0px));z-index:19;align-items:center;gap:12px;padding:12px;background:#2d323af5;border:1px solid var(--line);border-radius:25px;box-shadow:0 8px 32px #0005;backdrop-filter:blur(16px)}.zest-mobile-download>img{width:40px;height:40px;border-radius:11px}.zest-mobile-download>div{flex:1;min-width:0}.zest-mobile-download strong{display:block;font:700 21px/1 var(--heading)}.zest-mobile-download>div>span{display:block;color:var(--muted);font-size:11px;margin-top:5px}.zest-mobile-download .compact-download{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:46px;font-weight:650}.zest-start{gap:5%}.zest-context-download{padding:26px;gap:22px}}
@media(max-width:600px){.zest-page .product-hero{grid-template-columns:1fr;gap:28px;padding:30px 0}.zest-page .product-hero h1{font-size:clamp(44px,11vw,58px)}.zest-brand-line{font-size:14px}.zest-hero-actions{gap:20px}.zest-landing-puzzle.zest-playable{padding:20px}.zest-puzzle-heading{margin-bottom:18px}.zest-landing-puzzle .puzzle-tools{margin-top:16px}.zest-landing-puzzle .puzzle-tools p{font-size:11px}.zest-landing-puzzle .puzzle-tools .puzzle-status{font-size:9px}.zest-context-download{flex-direction:column;align-items:flex-start;margin-bottom:28px;padding:26px 23px}.zest-context-download .eyebrow{font-size:10px}.zest-context-download h2,.zest-context-download h3{font-size:29px}.zest-gallery-heading{margin-top:44px}.zest-gallery-heading h3{font-size:30px}.zest-gallery-download{padding:26px 0 0;margin:28px 0 0}.zest-start{grid-template-columns:1fr;gap:28px}.zest-offer-card{padding:26px}.zest-device-details summary{font-size:15px;flex-wrap:wrap;gap:8px}.zest-device-details summary span{flex-basis:75%;order:2}.zest-page .duo-section{padding-bottom:35px}}
@media(prefers-reduced-motion:reduce){.zest-secondary{transition:none}}

@media(min-width:601px){.zest-page .product-hero h1{font-size:clamp(44px,4.3vw,58px)}.zest-landing-puzzle.zest-playable{max-width:480px;margin-left:auto;width:100%}.zest-playable.zest-landing-puzzle .playable-board{max-width:380px;margin-inline:auto}}

/* Persistent, explicit studio return route on every screen size. */
.zest-page .product-header{position:sticky;top:0;z-index:40}
.zest-page .studio-bar{min-height:56px;gap:16px}
.zest-page .studio-bar>.zest-studio-return{display:inline-flex;align-items:center;gap:14px;min-height:52px;color:var(--text,#f0ead6);letter-spacing:0;flex-wrap:nowrap}
.zest-page .zest-studio-return img{width:120px;height:auto;flex:none}
.zest-studio-back-arrow{font-size:24px;line-height:1}
.zest-studio-back-label{font:500 13px/1.3 'DM Sans',sans-serif;border-left:1px solid #ffffff40;padding-left:14px;white-space:nowrap}
.zest-page .studio-bar>.zest-studio-return:hover .zest-studio-back-label{text-decoration:underline;text-underline-offset:4px}
@media(max-width:600px){.zest-page .studio-bar>span{display:none}.zest-page .studio-bar>.zest-studio-return{gap:10px}.zest-page .zest-studio-return img{width:108px}.zest-studio-back-label{font-size:12px;padding-left:10px}.zest-page main section[id]{scroll-margin-top:145px}}