/* 2026/09/23 editorial system — shared rhythm across product, docs and demo. */
:root{--ink:#172338;--muted:#59687c;--blue:#4d5fe7;--line:#e1e6ef;background:#f8f9fc}body{background:radial-gradient(ellipse at 80% 0,#eaf0ff80,transparent 700px)}h1,h2,h3{font-weight:650;text-wrap:balance}h1{line-height:1.28;letter-spacing:-.045em}h2{letter-spacing:-.035em}p{line-height:1.95}a{transition:color .15s,background .15s}.hero{padding:100px 0 82px;gap:32px}.hero h1{font-size:clamp(40px,4.8vw,64px)}.hero .lead{font-size:18px;line-height:2}.hero-meta{font-size:12px;margin-top:25px;letter-spacing:.04em}.hero-meta span{margin:0 8px;color:#b5bfd1}.hero-art{padding:25px}.glass-label{bottom:2%;font-size:14px;line-height:1.8}.band{font-size:13px;flex-wrap:wrap}.eyebrow{font-size:11px;letter-spacing:.16em}.button,button{border-radius:12px;min-height:48px}.text-link{display:inline-block;margin-top:16px;text-decoration:none;font-weight:600;font-size:14px}.section-intro{max-width:650px;margin-bottom:36px}.section-intro p{max-width:570px}.app-showcase{margin:72px 0;padding:64px;border:1px solid #e6ebf4;background:radial-gradient(ellipse at 95% 85%,#dce6fa,transparent 65%),linear-gradient(135deg,#f0f4fc,#f9fbff)}.app-showcase p{max-width:465px}.app-showcase .split{align-items:center}.app-showcase.split{align-items:center}.app-screen{max-width:265px}.app-screen-pair{max-width:700px;gap:90px}.request-story{padding:50px 0 80px}.journey-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;margin:44px 0 28px}.journey-grid article{border-top:1px solid #ccd5e5;padding-top:24px}.journey-grid h3{font-size:19px}.journey-grid p{font-size:15px}.quiet-note{font-size:12px;padding-top:22px;border-top:1px solid var(--line);max-width:760px}.clip-story{padding:60px;gap:70px;margin:25px 0 72px;background:radial-gradient(ellipse at 0 0,#2d3d69,#131d30 75%);align-items:center}.dark .eyebrow{color:#a8b9fb}.dark .button{color:#fff;margin-top:18px}.entry-list article{display:flex;gap:22px;padding:24px 0;border-bottom:1px solid #ffffff20}.entry-list article:last-child{border:0}.entry-list article>span{font-size:11px;color:#93a6d3;padding-top:8px}.entry-list h3{margin:0;font-size:18px}.entry-list p{font-size:14px;margin:8px 0 0}.feature-card{padding:30px;border-color:#e4e9f1;box-shadow:0 5px 18px #213a5b03}.feature-card h3{font-size:19px;margin:22px 0 12px}.feature-card p{margin:0;line-height:1.9}.feature-icon{display:flex;width:48px;height:48px;border-radius:14px;align-items:center;justify-content:center;background:#eff2ff;color:var(--blue)}.privacy-story{padding:65px 20px 85px}.developer-callout{background:#eaf0fc;border:1px solid #dce5f5;border-radius:28px;padding:54px;display:flex;gap:38px;align-items:center;justify-content:space-between;margin-bottom:90px}.developer-callout p{max-width:580px}.developer-callout .actions{flex-direction:column;min-width:180px}.article{max-width:960px;margin:auto;padding-top:78px}.article>h1{font-size:clamp(36px,4.8vw,56px);line-height:1.3}.article>.lead{font-size:18px;max-width:740px}.article>h2{scroll-margin-top:115px;font-size:28px;line-height:1.5;margin-top:64px}.toc{gap:8px;margin:32px 0 42px}.toc a{display:block;font-size:13px;text-decoration:none;padding:8px 12px;border-radius:8px;background:#edf1f8;color:#53637f}.toc a:hover{background:#e0e7f5}.document-page{max-width:900px}.document-section{display:grid;grid-template-columns:38px minmax(0,1fr);gap:24px;padding:34px 0;border-top:1px solid var(--line);scroll-margin-top:96px}.document-section h2{margin:0 0 18px;font-size:24px;line-height:1.5}.document-section p{font-size:15px}.section-number{color:#8797b1;font-size:12px;padding-top:9px;font-variant-numeric:tabular-nums}.document-section ul{padding-left:20px}.table-wrap{border-radius:14px;border:1px solid var(--line)}table th,table td{border:0;border-bottom:1px solid var(--line)}th{font-size:12px;letter-spacing:.04em}pre{font-size:13px;padding:28px;line-height:1.9;max-width:100%}.sdk-start{margin:48px 0;background:#eef2fa;border:1px solid var(--line);border-radius:22px;padding:30px}.sdk-start h2{margin-top:10px}.note{border:1px solid #dce3f7;background:#f0f3fd;border-radius:14px;font-size:14px}.warning{background:#fcf8ef;border-color:#eadfca}.demo.wizard{margin:32px 0 44px;box-shadow:0 18px 64px #253b680b;border-radius:24px}.wizard-head{padding:30px 32px 26px;background:linear-gradient(120deg,#eff3fd,#fafbfe)}.wizard-title{font-size:22px}.wizard-panel{padding:30px 32px 12px}.wizard-nav{padding:10px 32px 30px}.demo.wizard .progress-status{padding:4px 32px 16px}.file-picker{transition:background .15s,border-color .15s}.diagram-panel{padding-top:25px}.article .diagram-panel[hidden]{display:none}.article .band{margin:24px 0 32px}.navlinks a:last-child{color:var(--blue)}footer{font-size:13px;line-height:1.9}.document-section a{overflow-wrap:anywhere}
@media(max-width:760px){nav{padding:16px 20px;gap:15px}.navlinks{gap:12px;font-size:12px}main{padding:0 22px}.hero{padding:55px 0 45px;gap:25px}.hero h1{font-size:40px}.hero-art{max-width:390px;margin:auto}.hero .lead{font-size:16px}.band{gap:16px;font-size:11px}.app-showcase{margin:42px 0;padding:34px 24px;gap:30px}.app-showcase p{font-size:15px}.app-screen-pair{gap:40px}.clip-story{padding:34px 26px;gap:20px;border-radius:25px}.journey-grid{grid-template-columns:1fr;gap:16px;margin-top:30px}.journey-grid article{padding-top:18px}.journey-grid h3{margin:10px 0}.journey-grid p{margin:0}.privacy-story{padding:45px 0;gap:8px}.developer-callout{padding:32px 26px;display:block;margin-bottom:55px}.developer-callout .actions{flex-direction:row}.article{padding:45px 0 60px}.article>h1{font-size:36px}.document-section{gap:10px;grid-template-columns:25px minmax(0,1fr);padding:25px 0}.document-section h2{font-size:21px}.document-section .table-wrap{margin-left:-35px}.sdk-start{padding:22px 18px}.wizard-head{padding:24px 22px 20px}.wizard-panel{padding:24px 22px 10px}.wizard-nav{padding:8px 22px 24px}.demo.wizard .progress-status{padding:4px 22px 16px}.toc{margin:25px 0;gap:6px}.toc a{font-size:12px}.grid{gap:14px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.hero-art img{animation:none}}
/* App Clip first: a lightweight entry, with full-app features as the extension. */
.mobile-break{display:none}.clip-first-hero{grid-template-columns:1.1fr 1fr;align-items:center}.hero-requirements{font-size:12px;color:var(--muted);margin-top:10px}.clip-hero-visual{position:relative;min-width:0;padding:0 12px 90px}.clip-glass{display:block;width:100%;height:auto;border-radius:30px;mix-blend-mode:multiply}.invitation-preview{position:absolute;bottom:15px;left:12px;right:12px;padding:26px 28px;border:1px solid #ffffff;background:#ffffffed;box-shadow:0 24px 64px #2a426c16;border-radius:22px;backdrop-filter:blur(16px)}.invitation-kicker{font-size:11px;letter-spacing:.1em;color:var(--muted)}.invitation-document{display:flex;align-items:center;gap:16px;margin:18px 0 24px}.invitation-document>svg{color:var(--blue);flex-shrink:0;width:30px;height:30px}.invitation-document strong{display:block;font-size:19px}.invitation-document div>span{display:block;font-size:11px;margin-top:7px;color:var(--muted)}.invitation-route{display:flex;align-items:center;justify-content:space-between;gap:8px;border-top:1px solid var(--line);padding-top:18px;font-size:12px;color:var(--muted)}.clip-steps{padding:90px 0 60px;scroll-margin-top:85px}.signing-steps{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:30px;margin:42px 0}.signing-steps li{border-top:1px solid #cdd7e9;padding-top:23px}.step-index{font-size:13px;color:var(--blue);font-variant-numeric:tabular-nums}.signing-steps h3{font-size:19px;margin:20px 0 12px}.signing-steps p{font-size:14px;margin:0}.preparation-note{display:flex;gap:18px;align-items:center;border-radius:16px;padding:20px 24px;background:#edf1fa}.preparation-note svg{flex-shrink:0;color:var(--blue)}.preparation-note p{font-size:13px;margin:0}.preparation-note strong{display:block;color:var(--ink)}.signing-assurance{padding:30px 0 45px;gap:70px}.signing-assurance p{margin-top:0}.clip-faq{max-width:900px;margin:0 auto 90px}.clip-faq details{border-top:1px solid var(--line);padding:24px 0}.clip-faq details:last-child{border-bottom:1px solid var(--line)}.clip-faq summary{cursor:pointer;font-size:18px;font-weight:600;line-height:1.6}.clip-faq details p{font-size:15px;max-width:760px;margin:18px 0 0}.clip-faq summary:focus-visible{outline:2px solid var(--blue);outline-offset:8px}#full-app{scroll-margin-top:100px}#full-app .button{margin-top:18px}
@media(max-width:1000px){.signing-steps{grid-template-columns:repeat(2,minmax(0,1fr))}.invitation-preview{padding:22px}.clip-first-hero h1{font-size:44px}}
@media(max-width:760px){.clip-first-hero{grid-template-columns:1fr}.clip-first-hero h1{font-size:40px}.mobile-break{display:block}.clip-hero-visual{max-width:420px;width:100%;margin:auto;padding:0 0 95px}.clip-glass{max-height:340px;object-fit:contain}.invitation-preview{left:0;right:0;bottom:12px}.clip-steps{padding:50px 0 40px}.signing-steps{grid-template-columns:1fr;gap:20px;margin:28px 0}.signing-steps li{display:grid;grid-template-columns:32px 1fr;column-gap:12px;padding-top:20px}.step-index{grid-row:1/3;padding-top:5px}.signing-steps h3{margin:0 0 8px}.signing-steps p{grid-column:2}.preparation-note{align-items:flex-start;padding:20px;gap:14px}.preparation-note svg{margin-top:6px}.signing-assurance{gap:12px;padding:10px 0 20px}.clip-faq{margin-bottom:55px}.clip-faq summary{font-size:16px}.hero-meta{font-size:11px;letter-spacing:0}.hero-meta span{margin:0 4px}}