/* Product research brief: paper, ink, original brand red. */
.product-hero>*{min-width:0}.startup-site h1{overflow-wrap:anywhere}
.mobile-navigation{display:none}.menu-toggle{list-style:none;cursor:pointer}.menu-toggle::-webkit-details-marker{display:none}
@media(max-width:900px){.startup-site .main-nav{display:none!important}.mobile-navigation{display:block}html:not(.js) .mobile-navigation .menu-toggle{display:flex}.mobile-nav{position:absolute;top:100%;left:0;right:0;background:var(--paper);padding:16px var(--gutter) 24px;border-bottom:1px solid var(--line);max-height:calc(100dvh - 90px);overflow-y:auto}.mobile-nav a{display:flex;justify-content:space-between;align-items:center;min-height:48px;font-size:14px;padding:10px 0}.mobile-navigation[open] .menu-icon{transform:rotate(-45deg);height:1px;border-bottom:0}.mobile-navigation[open] .menu-icon::after{content:'';width:17px;height:1px;background:var(--ink);position:absolute;left:0;transform:rotate(90deg);top:-1px}}
.startup-site .main-nav{gap:27px}.startup-site .main-nav a{font-size:13px;min-height:44px;display:inline-flex;align-items:center}
.startup-site .hero{padding-top:35px}.startup-site .eyebrow,.startup-site .mono{font-size:11px;letter-spacing:.7px}.startup-site .hero-coordinate{font-size:11px}
.product-hero{display:grid;grid-template-columns:1.55fr 1fr;gap:70px;align-items:end;padding-block:65px 62px}.product-category{font-size:15px;margin-bottom:22px;color:var(--muted)}
.startup-site h1{font-size:clamp(55px,6.8vw,98px);line-height:1.02;letter-spacing:-.065em}.startup-site h1 .serif{font-size:.68em;line-height:1.3;letter-spacing:-.045em;white-space:nowrap}
.hero-introduction{padding-bottom:4px;max-width:420px}.hero-introduction p{font-size:16px;line-height:1.8}.hero-introduction p+p{margin-top:17px;font-size:14px}.startup-site .button{font-size:13px;min-height:48px}
.product-status{display:flex;align-items:center;gap:26px;border-top:1px solid var(--line);padding-block:22px;font-size:12px;flex-wrap:wrap}.product-status strong{display:flex;align-items:center;gap:9px;font-weight:600}.product-status>span{color:var(--muted)}.product-status>a{margin-left:auto;text-decoration:underline;text-underline-offset:4px;min-height:44px;display:inline-flex;align-items:center;gap:20px}
.startup-site .section-pad{padding-block:85px}.product-section{border-top:1px solid var(--line)}.startup-site h2{font-size:clamp(32px,3.4vw,49px);letter-spacing:-1.8px;line-height:1.18}.startup-site .section-heading{grid-template-columns:1fr 2fr;gap:45px;margin-bottom:40px}.startup-site .section-heading>div>p{font-size:15px;line-height:1.8;max-width:660px;margin-top:22px}
.product-process{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.product-process li{padding:26px 30px 0;border-left:1px solid var(--line)}.product-process li:first-child{padding-left:0;border-left:0}.product-process li:last-child{padding-right:0}.product-process .mono{color:var(--accent)}.product-process h3{font-size:21px;font-weight:550;line-height:1.4;margin-top:17px;letter-spacing:-.6px}.product-process p{font-size:14px;line-height:1.8;color:var(--muted);margin-top:12px}
.example{display:grid;grid-template-columns:1fr 1.1fr;gap:85px;margin-top:80px;scroll-margin-top:130px}.example-context{padding-top:22px}.example-context>.eyebrow{color:var(--accent)}.example-context h3{font-size:36px;line-height:1.2;letter-spacing:-1px;font-weight:550;margin-top:20px}.example-context h3 .serif{color:var(--accent)}.example-context>p:not(.eyebrow){font-size:14px;line-height:1.8;color:var(--muted);margin-top:20px;max-width:390px}.example-context .text-link{margin-top:20px}
.example-output{border:1px solid var(--line);background:var(--white);padding:25px 28px}.example-heading{display:flex;justify-content:space-between;gap:15px;align-items:center;padding-bottom:18px;border-bottom:1px solid var(--line);flex-wrap:wrap}.example-heading strong{font-size:12px;font-weight:500;color:var(--accent)}
.model-controls{display:flex;gap:0;border-bottom:1px solid var(--line);margin-top:10px;flex-wrap:wrap}.model-controls button{background:none;border:0;border-bottom:2px solid transparent;font-size:12px;min-height:48px;padding:10px 12px;flex:1}.model-controls button[aria-pressed=true]{border-color:var(--accent);color:var(--accent);font-weight:700}.model-controls button:hover{background:var(--accent-soft)}
.model-description{font-size:13px;line-height:1.7;margin-top:18px;min-height:66px;color:var(--muted)}.example-table{border-collapse:collapse;width:100%;font-size:14px;font-variant-numeric:tabular-nums}.example-table caption{text-align:left;font-size:11px;color:var(--muted);padding-block:10px}.example-table th,.example-table td{padding:12px 5px;border-bottom:1px solid var(--line);text-align:left}.example-table thead th{font-size:11px;font-weight:500;color:var(--muted)}.example-table tbody th{font-weight:600}.example-table td:last-child,.example-table th:last-child{text-align:right}.example-table tbody tr:first-child{color:var(--accent)}.example-limit{font-size:11px;line-height:1.8;color:var(--muted);margin-top:19px}
.technical-line{display:flex;flex-wrap:wrap;align-items:center;gap:15px 30px;border-block:1px solid var(--line);padding-block:23px;margin-top:45px}.technical-line>.mono{color:var(--accent)}.technical-line p{font-size:12px;flex:1;min-width:210px;color:var(--muted)}.startup-site .text-link{font-size:13px;min-height:44px;align-items:center}
.business{background:#e9ece3;border-block:1px solid #c8cebf}.business-questions{margin:0}.business-questions>div{display:grid;grid-template-columns:1fr 2fr;gap:45px;padding-block:22px;border-top:1px solid #c8cebf}.business-questions dt{font-size:15px;font-weight:600}.business-questions dd{font-size:15px;line-height:1.8;margin:0;max-width:660px;color:var(--muted)}
.development-list{border-top:1px solid var(--line)}.development-list details{border-bottom:1px solid var(--line)}.development-list summary{display:flex;align-items:center;gap:24px;padding:24px 0;cursor:pointer;list-style:none;font-size:23px;font-weight:550;letter-spacing:-.7px}.development-list summary::-webkit-details-marker{display:none}.development-list summary::after{content:'+';font-family:'Courier New',monospace;font-size:27px;font-weight:400;color:var(--accent);margin-left:12px}.development-list details[open] summary::after{content:'−'}.development-list summary .project-stage{font-size:12px;color:var(--muted);letter-spacing:0;font-weight:400;margin-left:auto}
.development-detail{max-width:800px;padding:0 0 27px 30px;border-left:2px solid var(--accent);margin-bottom:10px}.development-detail p,.development-detail dd{font-size:14px;line-height:1.8;color:var(--muted)}.development-detail dl{margin:18px 0 0}.development-detail dl>div{display:grid;grid-template-columns:100px 1fr;gap:20px;margin-top:12px}.development-detail dt{font-size:12px;font-weight:600}.development-detail dd{margin:0}.development-note{font-size:13px;color:var(--muted);line-height:1.85;margin-top:27px;max-width:840px}.development-note strong{color:var(--ink);font-weight:600}
.ai-note{background:var(--dark);color:var(--paper);padding:35px 38px;margin-top:45px;display:grid;grid-template-columns:1fr 2fr;gap:40px}.ai-note>.eyebrow{color:#f1ada4;align-items:start;padding-top:5px}.ai-note h3{font-size:24px;font-weight:500;letter-spacing:-.6px;line-height:1.4}.ai-note div p{font-size:13px;line-height:1.9;color:#d1d8cb;margin-top:14px}
.validation-section{border-block:1px solid var(--line)}.validation-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.validation-list li{display:grid;grid-template-columns:60px 1fr 150px;gap:30px;align-items:start;padding-block:27px;border-bottom:1px solid var(--line)}.validation-list li>.mono{padding-top:6px;color:var(--accent)}.validation-list h3{font-size:23px;font-weight:550;letter-spacing:-.6px;line-height:1.4}.validation-list p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:10px;max-width:730px}.validation-state{font-size:12px;color:var(--muted);padding-top:6px;text-align:right}
.startup-site .contact h2{font-size:clamp(30px,3.3vw,46px)}.startup-site .contact-grid{gap:65px;grid-template-columns:1.1fr 1fr;align-items:center}.startup-site .contact-grid>div>p{font-size:14px;line-height:1.85;max-width:520px}.startup-site .contact-email{font-size:clamp(16px,1.8vw,24px);overflow-wrap:anywhere;letter-spacing:-.7px}.startup-site .contact-action .contact-info{font-size:12px}.startup-site .contact-detail-label{font-size:11px}.startup-site .footer-main>p{font-size:12px}.startup-site .footer-bottom{font-size:12px}.startup-site .back-top{font-size:11px}.startup-site .footer-bottom a{min-height:44px;display:inline-flex;align-items:center}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}summary:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
.brief-main{max-width:950px;padding-block:65px 90px}.brief-main h1{font-size:clamp(44px,6vw,75px);line-height:1.12;margin-top:23px}.brief-intro{font-size:19px;line-height:1.7;max-width:700px;margin-top:24px}.brief-main section{margin-top:45px;padding-top:30px;border-top:1px solid var(--line)}.brief-main h2{font-size:29px;letter-spacing:-.7px;line-height:1.35;margin-bottom:20px}.brief-main h3{font-size:19px;margin:27px 0 13px}.brief-main p,.brief-main li{font-size:15px;line-height:1.9;color:var(--muted)}.brief-main p+p{margin-top:16px}.brief-main ul,.brief-main ol{padding-left:22px}.brief-main a:not(.button){text-decoration:underline}.brief-status{border-left:3px solid var(--accent);background:var(--accent-soft);padding:20px 24px;margin-top:30px}.brief-main code{font-family:'Courier New',monospace;font-size:13px;overflow-wrap:anywhere}.fixture-list{list-style:none;padding:0!important}.fixture-list li{display:grid;grid-template-columns:80px 1fr;gap:20px;border-bottom:1px solid var(--line);padding-block:10px;font-variant-numeric:tabular-nums}.brief-main .button{margin-top:25px}
@media(max-width:1100px){.product-hero{gap:40px;grid-template-columns:1.35fr 1fr}.hero-introduction p{font-size:14px}.product-status{gap:16px}.example{gap:45px}.product-process li{padding-inline:22px}.product-process h3{font-size:19px}.startup-site .main-nav{gap:18px}.startup-site .main-nav a{font-size:12px}.startup-site .contact-grid{gap:35px}}
@media(max-width:900px){.product-hero{grid-template-columns:1fr;gap:30px;padding-block:40px}.startup-site h1{font-size:76px}.hero-introduction{max-width:650px;display:grid;grid-template-columns:1fr 1fr;gap:0 30px}.hero-introduction p+p{margin-top:0}.hero-introduction .button{justify-self:start;grid-column:1/-1;margin-top:25px}.product-status>a{margin-left:0}.startup-site .section-heading,.business-questions>div{grid-template-columns:1fr 2fr;gap:28px}.example{gap:30px}.example-output{padding:20px}.example-context h3{font-size:30px}.product-process{grid-template-columns:1fr}.product-process li,.product-process li:first-child,.product-process li:last-child{padding:22px 0;border-left:0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:150px 1fr;gap:7px 25px}.product-process h3{margin:0;font-size:21px}.product-process p{grid-column:2;margin:0}.product-process .mono{padding-top:6px}.startup-site .contact h2{font-size:33px}.startup-site .contact-grid{gap:30px}.ai-note{grid-template-columns:1fr;gap:20px}.startup-site .section-pad{padding-block:65px}}
@media(max-width:650px){.startup-site .hero{padding-top:25px}.startup-site .hero-topline .eyebrow{font-size:10px;letter-spacing:.3px;gap:8px}.product-hero{padding-block:33px 30px;gap:25px}.product-category{font-size:12px;margin-bottom:19px}.startup-site h1{font-size:clamp(44px,12.7vw,72px)}.startup-site h1 .serif{font-size:.65em;white-space:normal;display:inline-block;max-width:100%;margin-top:8px}.hero-introduction{display:block}.hero-introduction p{font-size:15px}.hero-introduction p+p{margin-top:15px;font-size:13px}.hero-introduction .button{margin-top:23px}.product-status{display:grid;grid-template-columns:1fr;gap:5px;padding-block:20px;font-size:12px}.product-status>a{margin-top:4px;justify-content:space-between}.startup-site .section-heading,.business-questions>div{grid-template-columns:1fr;gap:20px}.startup-site .section-heading>div>p{font-size:14px;margin-top:18px}.startup-site h2{font-size:33px;letter-spacing:-1.25px}.startup-site .section-pad{padding-block:50px}.startup-site .eyebrow,.startup-site .mono{font-size:10px}.product-process li,.product-process li:first-child,.product-process li:last-child{display:block;padding-block:23px}.product-process h3{font-size:21px;margin-top:12px}.product-process p{margin-top:9px;font-size:14px}.example{grid-template-columns:1fr;margin-top:43px;gap:26px;scroll-margin-top:115px}.example-context{padding-top:0}.example-context h3{font-size:32px;margin-top:16px}.example-context>p:not(.eyebrow){font-size:14px;margin-top:16px}.example-context .text-link{margin-top:12px}.example-output{padding:20px 17px}.example-heading{gap:10px}.example-heading strong{font-size:11px}.model-controls button{font-size:11px;padding-inline:5px;min-height:48px}.model-description{font-size:12px;min-height:63px}.example-table{font-size:13px}.example-table th,.example-table td{padding:12px 3px}.example-table thead th,.example-table caption{font-size:10px}.technical-line{display:block;margin-top:28px}.technical-line p{font-size:12px;margin-block:10px;min-width:0}.business-questions>div{gap:10px;padding-block:22px}.business-questions dd{font-size:14px}.development-list summary{font-size:19px;flex-wrap:wrap;gap:6px 16px;padding-block:22px;position:relative;padding-right:30px}.development-list summary .project-stage{width:100%;margin-left:0;font-size:12px}.development-list summary::after{position:absolute;right:0;top:26px;margin:0}.development-detail{padding-left:18px}.development-detail p,.development-detail dd{font-size:13px}.development-detail dl>div{grid-template-columns:1fr;gap:5px}.development-note{font-size:13px}.ai-note{padding:26px 22px;margin-top:30px;gap:17px}.ai-note h3{font-size:24px}.ai-note div p{font-size:13px}.validation-list li{grid-template-columns:28px 1fr;gap:6px 14px;padding-block:24px}.validation-list h3{font-size:22px}.validation-list p{font-size:14px}.validation-state{grid-column:2;text-align:left;font-size:11px;margin-top:5px}.startup-site .contact-grid{grid-template-columns:1fr;gap:30px}.startup-site .contact h2{font-size:clamp(28px,8.4vw,40px)}.startup-site .contact h2 .serif{letter-spacing:-.04em}.startup-site .contact-grid>div>p{font-size:14px}.startup-site .contact-email{font-size:clamp(14px,4.2vw,20px);gap:8px;letter-spacing:-.7px}.startup-site .contact-email span{font-size:22px}.startup-site .footer-main>p{font-size:11px;max-width:135px}.startup-site .footer-bottom{font-size:11px;gap:14px}.startup-site .footer-bottom nav{flex-wrap:wrap;justify-content:start;gap:8px 20px}.startup-site .footer-bottom a{font-size:11px}.brief-main{padding-block:40px 60px}.brief-intro{font-size:17px}.brief-main section{margin-top:35px;padding-top:26px}.brief-main h2{font-size:26px}.brief-main p,.brief-main li{font-size:14px}.fixture-list li{grid-template-columns:1fr;gap:4px}.brief-status{padding:17px}.brief-main code{font-size:12px}}