html{scroll-behavior:smooth;scroll-padding-top:80px}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}.b4{--bg: #0a0a0a;--bg-raised: #141418;--bg-panel: #17171c;--text: #f5f5f4;--text-muted: #a8a29e;--text-faint: #737373;--text-quiet: #55544e;--border: #262626;--border-soft: #1c1c24;--accent: #b8e24a;--storypass-accent: #22c55e}.b4 *,.b4 *:before,.b4 *:after{box-sizing:border-box;margin:0;padding:0}.b4 img{max-width:100%;display:block}.b4 a{color:inherit;text-decoration:none}.b4 .container{max-width:1180px;margin:0 auto;padding:0 32px}.b4 nav.top{position:sticky;top:0;z-index:50;background:#0e0e10d1;backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.b4 nav.top .inner{padding:18px 0;display:flex;align-items:center;justify-content:space-between}.b4 .logo{display:inline-flex;align-items:baseline;gap:1px;font-family:Fraunces,serif;font-weight:500;font-size:22px;letter-spacing:-.02em;color:var(--text)}.b4 .logo .dot{display:inline-block;width:5px;height:5px;background:var(--accent);border-radius:50%;margin:0 3px 3px 1px;vertical-align:middle}.b4 .logo .tld{color:var(--text-faint);font-weight:400;font-family:Geist Mono,monospace;font-size:11px;letter-spacing:.04em;margin-left:1px}.b4 nav ul{display:flex;gap:2px;list-style:none;font-size:14px;color:var(--text-muted);align-items:center}.b4 nav ul li a{padding:7px 14px;border-radius:999px;transition:background .15s,color .15s}.b4 nav ul li a:hover{background:#ffffff05;color:var(--text)}.b4 .hero{position:relative;min-height:90vh;padding:120px 0 80px;display:flex;flex-direction:column;justify-content:center}.b4 .hero .container{width:100%}.b4 h1.mega{font-family:Geist,sans-serif;font-weight:400;font-size:clamp(64px,8.2vw,124px);line-height:.96;letter-spacing:-.04em;max-width:14ch;margin-bottom:.5em;color:var(--text)}.b4 h1.mega em{font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:400;color:var(--accent)}.b4 .hero-sub{font-family:Newsreader,Georgia,serif;font-weight:500;font-size:clamp(34px,4.2vw,60px);line-height:1.2;letter-spacing:-.015em;color:var(--text-muted);max-width:22ch;margin-bottom:56px}.b4 .hero-sub em{font-style:italic;color:var(--text)}.b4 .hero-ctas{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:44px}.b4 .btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:999px;font-size:14px;font-weight:500;letter-spacing:-.005em;transition:transform .15s,background .15s,border-color .15s;border:1px solid transparent;cursor:pointer;font-family:inherit}.b4 .btn:hover{transform:translateY(-1px)}.b4 .btn .arrow{transition:transform .15s}.b4 .btn:hover .arrow{transform:translate(3px)}.b4 .btn-primary{background:var(--accent);color:var(--bg);font-weight:600}.b4 .btn-primary:hover{background:#c9ee5e}.b4 .btn-ghost{color:var(--text);border-color:var(--border);background:transparent}.b4 .btn-ghost:hover{border-color:var(--text-faint);background:#ffffff05}.b4 .hero-meta{font-family:Newsreader,Georgia,serif;font-size:17px;color:var(--text-faint);font-style:italic;letter-spacing:-.005em}.b4 .thesis{padding:140px 0;border-top:1px solid var(--border)}.b4 .thesis-grid{display:grid;grid-template-columns:240px 1fr;gap:80px}.b4 .sec-label{font-family:Geist Mono,monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-faint);display:flex;flex-direction:column;gap:8px;position:sticky;top:90px;align-self:start}.b4 .sec-label .n{color:var(--text-faint)}.b4 .sec-label .n .num{color:var(--accent)}.b4 .sec-label .t{color:var(--text);font-family:Geist,sans-serif;font-size:13px;font-weight:500;letter-spacing:-.005em;text-transform:none;margin-top:4px}.b4 .thesis-body p{font-family:Newsreader,Georgia,serif;font-size:clamp(30px,3.4vw,44px);line-height:1.25;letter-spacing:-.015em;color:var(--text-muted);max-width:22ch}.b4 .thesis-body p+p{margin-top:.6em}.b4 .thesis-body em{font-style:italic;color:var(--accent)}.b4 .thesis-body strong{color:var(--text);font-weight:500}.b4 .parallel{margin-top:56px;padding:32px 36px;border:1px solid var(--border);border-radius:16px;background:#ffffff05;display:grid;grid-template-columns:1fr 1fr;gap:48px;max-width:820px}.b4 .parallel .then,.b4 .parallel .now{padding-left:16px;border-left:2px solid var(--border)}.b4 .parallel .now{border-left-color:var(--accent)}.b4 .parallel .era{font-family:Geist Mono,monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-faint);margin-bottom:12px}.b4 .parallel .now .era{color:var(--accent)}.b4 .parallel .phrase{font-family:Newsreader,Georgia,serif;font-size:19px;line-height:1.4;letter-spacing:-.005em;color:var(--text)}.b4 .parallel .phrase em{font-style:italic;color:var(--text)}.b4 .parallel .now .phrase em{color:var(--accent)}.b4 .writing{padding:0 0 120px}.b4 .writing-grid{display:grid;grid-template-columns:240px 1fr;gap:80px}.b4 .writing-grid .sec-label{position:sticky;top:90px;align-self:start}.b4 .writing-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap;margin-bottom:56px}.b4 .writing-head h2{font-family:Geist,sans-serif;font-weight:400;font-size:clamp(42px,4.8vw,64px);line-height:1;letter-spacing:-.03em}.b4 .writing-head h2 em{font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:400;color:var(--accent)}.b4 .writing-head .see-all{font-family:Geist Mono,monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-muted);display:inline-flex;align-items:center;gap:8px;padding-bottom:6px;border-bottom:1px solid var(--border);transition:color .15s,border-color .15s}.b4 .writing-head .see-all:hover{color:var(--accent);border-color:var(--accent)}.b4 .writing-head .see-all .arrow{transition:transform .15s}.b4 .writing-head .see-all:hover .arrow{transform:translate(3px)}.b4 .posts{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}.b4 .post{display:flex;flex-direction:column;gap:14px;border:none;background:transparent;padding:0;border-radius:0;min-height:0;transition:opacity .2s}.b4 .post:hover{border:none;transform:none;opacity:.85}.b4 .post-fig{aspect-ratio:16 / 10;overflow:hidden;border-radius:4px;background:var(--bg-raised);margin:0}.b4 .post-fig img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}.b4 .post:hover .post-fig img{transform:scale(1.02)}.b4 .post-meta{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-family:Geist Mono,monospace;font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-faint);margin-top:4px}.b4 .post-meta .num{color:var(--text-faint)}.b4 .post-meta .sep{color:var(--text-quiet)}.b4 .post h4{font-family:Geist,sans-serif;font-style:normal;font-weight:400;font-size:22px;line-height:1.12;letter-spacing:-.02em;color:var(--text);text-wrap:balance}.b4 .post .dek{font-family:Newsreader,Georgia,serif;font-style:italic;font-size:16px;line-height:1.4;letter-spacing:-.005em;color:var(--text-muted);text-wrap:pretty}.b4 .stage{display:inline-flex;align-items:center;gap:7px;font-family:Geist Mono,monospace;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);padding:5px 10px;border:1px solid var(--border);border-radius:999px;background:#ffffff05;line-height:1;white-space:nowrap}.b4 .stage .dot{width:6px;height:6px;border-radius:50%;background:var(--text-faint);flex-shrink:0}.b4 .stage[data-stage=shipping]{color:var(--text);border-color:var(--border);background:#ffffff0a}.b4 .stage[data-stage=shipping] .dot{background:var(--text);box-shadow:0 0 8px #ffffff59}.b4 .stage[data-stage=beta] .dot,.b4 .stage[data-stage=open-beta] .dot{background:#6fa8ff}.b4 .stage[data-stage=alpha] .dot{background:#e0a645}.b4 .stage[data-stage=closed-preview] .dot{background:var(--text-faint)}.b4 .stage.lg{font-size:11.5px;padding:7px 13px}.b4 .stage.lg .dot{width:7px;height:7px}.b4 .product{padding:0 0 80px}.b4 .section-head{padding:80px 0 48px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap}.b4 .section-head h2{font-family:Geist,sans-serif;font-weight:400;font-size:clamp(42px,4.8vw,68px);line-height:1;letter-spacing:-.03em}.b4 .section-head h2 em{font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:400;color:var(--accent)}.b4 .section-head .kicker{font-family:Geist Mono,monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-faint)}.b4 .section-head .kicker .n{color:var(--accent)}.b4 .flagship{display:grid;grid-template-columns:1fr 1.15fr;gap:0;border:1px solid var(--border);border-radius:22px;overflow:hidden;background:#ffffff05;position:relative}.b4 .flagship .copy{padding:44px 44px 40px;display:flex;flex-direction:column}.b4 .flagship .top-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:36px}.b4 .flagship .cat{font-family:Geist Mono,monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-faint)}.b4 .flagship h3{font-family:Geist,sans-serif;font-weight:400;font-size:46px;line-height:1.05;letter-spacing:-.028em;margin-bottom:16px;color:var(--text);max-width:14ch}.b4 .flagship h3 em{font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:400;color:var(--accent)}.b4 .flagship .desc{font-family:Newsreader,Georgia,serif;font-size:19px;line-height:1.5;color:var(--text-muted);max-width:40ch;margin-bottom:28px}.b4 .flagship .specs{display:flex;gap:28px;margin-bottom:36px;padding:16px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.b4 .flagship .spec .v{font-family:Newsreader,Georgia,serif;font-size:22px;color:var(--text);line-height:1}.b4 .flagship .spec .l{font-family:Geist Mono,monospace;font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-faint);margin-top:7px}.b4 .flagship .cta-row{margin-top:auto;display:flex;gap:10px;align-items:center;flex-wrap:wrap}.b4 .btn-appstore{display:inline-flex;align-items:center;gap:10px;background:#000;color:#fff;border:1px solid #2a2a30;border-radius:10px;padding:9px 14px;font-size:12px;transition:border-color .15s}.b4 .btn-appstore:hover{border-color:#444}.b4 .btn-appstore svg{width:20px;height:20px;flex-shrink:0}.b4 .btn-appstore .sm{display:block;font-size:9px;color:#aaa;letter-spacing:.05em;line-height:1}.b4 .btn-appstore .lg{display:block;font-size:13px;font-weight:500;line-height:1.15;margin-top:2px}.b4 .flagship .more-link{font-size:13px;font-weight:500;display:inline-flex;align-items:center;gap:6px;color:var(--text-muted);padding:10px 14px}.b4 .flagship .more-link:hover{color:var(--text)}.b4 .viz-sp{position:relative;background:radial-gradient(ellipse at 30% 20%,rgba(31,122,184,.25),transparent 60%),linear-gradient(180deg,#0b1418,#101a14);display:flex;align-items:center;justify-content:center;padding:40px;min-height:520px;border-left:1px solid var(--border)}.b4 .viz-sp .menubar{position:absolute;top:18px;left:18px;right:18px;background:#1f7ab8d9;backdrop-filter:blur(8px);border-radius:8px;padding:7px 12px;font-size:11px;color:#fff;display:flex;align-items:center;gap:14px}.b4 .viz-sp .menubar .s{margin-left:auto;background:#fff;color:#1f7ab8;width:20px;height:20px;border-radius:5px;display:grid;place-items:center;font-family:Newsreader,serif;font-weight:500;font-size:13px;font-style:italic}.b4 .viz-sp .menubar .clock{font-family:Geist Mono,monospace;font-size:10.5px;letter-spacing:.04em}.b4 .viz-sp .menubar .dots{display:flex;gap:5px}.b4 .viz-sp .menubar .dots span{width:3px;height:3px;background:#ffffffb3;border-radius:50%}.b4 .viz-sp .pop{margin-top:40px;background:#14161abf;backdrop-filter:blur(24px);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:28px;max-width:360px;text-align:center;box-shadow:0 30px 60px -20px #0009}.b4 .viz-sp .pop .story{font-family:Newsreader,Georgia,serif;font-size:24px;line-height:1.2;color:var(--text);letter-spacing:-.005em}.b4 .viz-sp .pop .story .sw{color:var(--storypass-accent);font-style:italic}.b4 .viz-sp .pop .entropy{display:inline-flex;gap:10px;margin-top:18px;background:#4ed77a1a;color:var(--storypass-accent);font-family:Geist Mono,monospace;font-size:10.5px;padding:6px 12px;border-radius:999px;letter-spacing:.06em}.b4 .viz-sp .pop .btn-g{margin-top:16px;background:var(--storypass-accent);color:#052f13;font-size:12px;font-weight:600;padding:10px;border-radius:8px}.b4 .studio{padding:0 0 120px}.b4 .studio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.b4 .scard{border:1px solid var(--border);border-radius:16px;background:#ffffff05;padding:24px;display:flex;flex-direction:column;gap:16px;transition:border-color .2s,transform .2s;min-height:340px}.b4 .scard:hover{border-color:var(--text-faint);transform:translateY(-2px)}.b4 .scard .head{display:flex;justify-content:space-between;align-items:center;gap:12px}.b4 .scard .cat{font-family:Geist Mono,monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-faint)}.b4 .scard h3{font-family:Geist,sans-serif;font-weight:500;font-size:24px;line-height:1.1;letter-spacing:-.02em;color:var(--text)}.b4 .scard h3 .pt-name{font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:400}.b4 .scard .desc{font-size:14px;color:var(--text-muted);line-height:1.5;max-width:34ch;flex:1}.b4 .scard .foot{display:flex;justify-content:space-between;align-items:center;padding-top:14px;border-top:1px solid var(--border)}.b4 .scard .foot .meta{font-family:Geist Mono,monospace;font-size:10px;color:var(--text-faint);letter-spacing:.08em;text-transform:uppercase}.b4 .scard .foot .go{font-family:Geist Mono,monospace;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);display:inline-flex;align-items:center;gap:6px}.b4 .scard:hover .foot .go{color:var(--text)}.b4 .scard:hover .foot .go .arrow{transform:translate(3px)}.b4 .scard .foot .go .arrow{transition:transform .15s}.b4 .contact-close{padding:140px 0 160px;border-top:1px solid var(--border-soft)}.b4 .contact-close-inner{max-width:760px;margin:0 auto;text-align:center}.b4 .contact-close-eyebrow{font-family:Geist Mono,monospace;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-faint);margin-bottom:32px}.b4 .contact-close-eyebrow .num{color:var(--accent)}.b4 .contact-close h2{font-family:Geist,sans-serif;font-weight:400;font-size:clamp(56px,6.4vw,96px);line-height:1;letter-spacing:-.04em;color:var(--text)}.b4 .contact-close h2 em{font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:400;color:var(--accent)}.b4 .contact-close p{font-family:Newsreader,Georgia,serif;font-size:22px;line-height:1.45;color:var(--text-muted);max-width:46ch;margin:28px auto 0;letter-spacing:-.005em;text-wrap:pretty}.b4 .contact-close p em{font-style:italic;color:var(--text)}.b4 .contact-close-email{display:inline-flex;align-items:center;margin-top:44px;font-family:Geist Mono,monospace;font-size:22px;color:var(--text);padding:16px 26px;background:var(--bg-panel);border:1px solid var(--border);border-radius:999px;transition:border-color .15s,color .15s,transform .15s}.b4 .contact-close-email:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}.b4 .contact-close-meta{margin-top:24px;font-family:Newsreader,Georgia,serif;font-style:italic;font-size:15px;color:var(--text-faint)}.b4 .foot-newsletter{display:flex;align-items:center;gap:16px;padding:22px 0 4px;border-top:1px dashed var(--border-soft);margin-top:24px;flex-wrap:wrap}.b4 .foot-newsletter-label{font-family:Geist Mono,monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-faint)}.b4 .foot-newsletter form{display:flex;gap:8px;flex:1;min-width:280px;max-width:460px}.b4 .foot-newsletter .hp-field{position:absolute;left:-9999px;width:1px;height:1px;opacity:0;pointer-events:none}.b4 .foot-newsletter input{flex:1;background:var(--bg-panel);border:1px solid var(--border);border-radius:999px;padding:9px 16px;font:inherit;font-size:13px;color:var(--text);font-family:Geist Mono,monospace;transition:border-color .15s}.b4 .foot-newsletter input::placeholder{color:var(--text-muted);opacity:.55}.b4 .foot-newsletter input:focus{outline:none;border-color:var(--accent)}.b4 .foot-newsletter button{background:transparent;color:var(--text);border:1px solid var(--border);border-radius:999px;font-family:Geist Mono,monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;padding:8px 16px;transition:color .15s,border-color .15s,background .15s}.b4 .foot-newsletter button:hover{color:var(--bg);background:var(--accent);border-color:var(--accent)}.b4 .site-footer{padding:64px 0 48px;border-top:1px solid var(--border)}.b4 .foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid var(--border)}.b4 .foot-brand .tag{color:var(--text-faint);max-width:32ch;margin-top:14px;line-height:1.55;font-family:Newsreader,Georgia,serif;font-style:italic;font-size:15px}.b4 .foot-col h5{font-family:Geist Mono,monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-faint);margin-bottom:18px}.b4 .foot-col ul{list-style:none;display:flex;flex-direction:column;gap:11px;font-size:13px}.b4 .foot-col li a{color:var(--text-muted)}.b4 .foot-col li a:hover{color:var(--text)}.b4 .foot-col .pt-name{font-family:Newsreader,Georgia,serif;font-style:italic}.b4 .foot-legal{display:flex;flex-direction:column;gap:6px}.b4 .foot-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:28px;font-family:Geist Mono,monospace;font-size:10px;color:var(--text-faint);text-transform:uppercase;letter-spacing:.1em}.b4 .foot-bottom .cc em{font-family:Newsreader,Georgia,serif;font-style:italic;text-transform:none;letter-spacing:-.005em;color:var(--text-muted)}@media(max-width:980px){.b4 .hero{min-height:auto;padding:80px 0 60px}.b4 .thesis-grid{grid-template-columns:1fr;gap:32px}.b4 .sec-label{position:static}.b4 .writing-grid{grid-template-columns:1fr;gap:32px}.b4 .posts{grid-template-columns:1fr}.b4 .parallel{grid-template-columns:1fr;gap:24px;padding:24px 28px}.b4 .flagship{grid-template-columns:1fr}.b4 .viz-sp{min-height:400px;border-left:none;border-top:1px solid var(--border)}.b4 .studio-grid{grid-template-columns:1fr}.b4 .foot-grid{grid-template-columns:1fr 1fr}.b4 nav ul li:not(:last-child){display:none}}