@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,600;9..40,700&display=swap');

:root{--ink:#0a0c0f;--ink-soft:#171a1f;--paper:#f5f5f2;--white:#fff;--muted:#60646c;--line:#d5d7d9;--dark-line:#343840;--blue:#1c69d4;--blue-dark:#0653b6;--warning:#f0b323;--max:1280px;color-scheme:light}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:'DM Sans',Arial,sans-serif;font-size:16px;line-height:1.5}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:none}
button,a{touch-action:manipulation}
:focus-visible{outline:3px solid var(--blue);outline-offset:4px}
.skip-link{position:fixed;z-index:100;top:12px;left:12px;background:var(--white);padding:12px 18px;transform:translateY(-150%)}
.skip-link:focus{transform:none}
.site-header{height:82px;padding:0 max(24px,calc((100vw - var(--max))/2));display:flex;align-items:center;justify-content:space-between;background:var(--ink);color:var(--white);border-bottom:1px solid var(--dark-line);position:relative;z-index:20}
.brand{display:inline-flex;align-items:center;gap:13px;font-size:17px;font-weight:700;letter-spacing:.14em}
.brand-mark{width:38px;height:38px;display:grid;place-items:center;border:2px solid currentColor;font-size:20px;letter-spacing:0}
.site-header nav{display:flex;align-items:center;gap:32px;font-size:14px;font-weight:600}
.site-header nav a{min-height:44px;display:flex;align-items:center;border-bottom:2px solid transparent}
.site-header nav a:hover{border-color:var(--blue)}
.menu-toggle{display:none;min-height:44px;border:1px solid #646870;background:transparent;color:var(--white);font:inherit;padding:0 15px}
.hero{min-height:720px;background:var(--ink);color:var(--white);display:grid;grid-template-columns:minmax(0,1.05fr) minmax(480px,.95fr);gap:5vw;align-items:center;padding:90px max(24px,calc((100vw - var(--max))/2)) 105px;overflow:hidden}
.hero-copy{max-width:690px}
.eyebrow{margin:0 0 25px;color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.19em;text-transform:uppercase}
.hero h1{font-size:clamp(52px,6.1vw,92px);font-weight:300;letter-spacing:-.045em;line-height:.96;margin:0 0 34px;text-wrap:balance}
.hero-lede{max-width:640px;color:#c3c7cd;font-size:clamp(18px,1.7vw,22px);line-height:1.55;margin:0 0 40px}
.hero-actions,.download-actions{display:flex;gap:12px;flex-wrap:wrap}
.button{min-height:54px;padding:0 24px;display:inline-flex;align-items:center;justify-content:center;font-weight:700;border:2px solid transparent;transition:background .15s,border-color .15s,color .15s}
.button.primary{background:var(--blue);color:var(--white)}
.button.primary:hover{background:var(--blue-dark)}
.button.secondary{border-color:#737780;color:var(--white)}
.button.secondary:hover{border-color:var(--white)}
.release-note{margin:22px 0 0;color:#8d929a;font-size:13px}
.diagnostic-visual{border:1px solid var(--dark-line);background:#0d1014;min-height:510px;position:relative;padding:22px}
.visual-label,.visual-status{display:flex;align-items:center;justify-content:space-between;color:#8e949c;font:11px ui-monospace,monospace;letter-spacing:.12em}
.diagnostic-visual svg{display:block;width:100%;height:auto;margin-top:15px}
.grid-lines path{stroke:#20242a;stroke-width:1;fill:none}
.bus-lines path{stroke:#59616b;stroke-width:2;fill:none}.bus-lines .signal{stroke:var(--blue);stroke-width:3;stroke-dasharray:8 16;animation:signal 3s linear infinite}
.module rect{fill:#11151a;stroke:#7e858e;stroke-width:1.5}.module text{fill:#f7f7f7;font:600 18px ui-monospace,monospace;letter-spacing:.08em}.module .small{fill:#747b84;font-size:10px}.diagnostic-visual circle{fill:var(--blue)}
.visual-status{justify-content:flex-start;gap:12px;border-top:1px solid var(--dark-line);padding-top:18px}
.pulse{width:8px;height:8px;background:#5bc983;display:block;animation:pulse 2s ease-in-out infinite}
.principles{display:grid;grid-template-columns:repeat(4,1fr);background:var(--white);border-bottom:1px solid var(--line);padding:0 max(24px,calc((100vw - var(--max))/2))}
.principles p{margin:0;padding:22px 16px;text-align:center;font-size:11px;font-weight:700;letter-spacing:.14em;border-right:1px solid var(--line)}.principles p:first-child{border-left:1px solid var(--line)}
.section{padding:120px max(24px,calc((100vw - var(--max))/2))}
.section-heading{display:grid;grid-template-columns:.85fr 1.2fr 1fr;gap:5vw;align-items:start;margin-bottom:75px}
.section-heading .eyebrow{margin-top:9px}.section-heading h2,.trust-section h2{font-size:clamp(38px,4vw,62px);font-weight:300;letter-spacing:-.04em;line-height:1.05;margin:0}.section-heading>p:last-child{color:var(--muted);font-size:18px;margin:5px 0 0}
.capability-list{border-top:1px solid var(--line)}
.capability-list article{display:grid;grid-template-columns:80px 1fr;border-bottom:1px solid var(--line);padding:30px 0;transition:padding .2s}
.capability-list article:hover{padding-left:12px}.capability-list article>span{font:12px ui-monospace,monospace;color:var(--blue);padding-top:7px}.capability-list h3{font-size:25px;font-weight:600;margin:0 0 7px}.capability-list p{color:var(--muted);font-size:17px;margin:0;max-width:760px}
.compatibility-section{background:var(--ink-soft);color:var(--white)}
.section-heading.light>p:last-child{color:#b0b5bd}.compatibility-table{border-top:1px solid #4c5159}.table-row{display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:25px;min-height:75px;align-items:center;border-bottom:1px solid var(--dark-line);font-size:17px}.table-row span{color:#afb4bb}.table-head{min-height:50px;font-size:11px;letter-spacing:.13em;text-transform:uppercase}.table-head span{color:#727881}.compatibility-note{color:#9298a0;margin:28px 0 0}.compatibility-note a{color:var(--white);border-bottom:1px solid var(--white)}
.resources-section{background:var(--white)}
.resource-index{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.resource-index>a{display:grid;grid-template-columns:70px 1fr 30px;gap:18px;align-items:center;min-height:125px;padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .15s,color .15s}
.resource-index>a:hover{background:var(--ink);color:var(--white)}.resource-code{font:11px ui-monospace,monospace;color:var(--blue);letter-spacing:.12em}.resource-index strong,.resource-index small{display:block}.resource-index strong{font-size:20px;margin-bottom:5px}.resource-index small{color:var(--muted);font-size:14px}.resource-index>a:hover small{color:#aeb4bb}
.trust-section{display:grid;grid-template-columns:1fr 1fr;gap:8vw;background:var(--paper);border-top:1px solid var(--line)}.trust-copy{font-size:20px;color:var(--muted)}.trust-copy p{margin-top:0}.text-link{color:var(--ink);font-size:16px;font-weight:700;border-bottom:2px solid var(--blue);padding-bottom:4px}
.safety-section{margin:0 max(24px,calc((100vw - var(--max))/2)) 120px;padding:35px 0;border-top:2px solid var(--ink);border-bottom:1px solid var(--line);display:grid;grid-template-columns:75px 1fr;gap:20px}.safety-mark{width:46px;height:46px;border:2px solid var(--warning);display:grid;place-items:center;font-size:24px;font-weight:700}.safety-section h2{font-size:24px;margin:0 0 8px}.safety-section p{max-width:900px;color:var(--muted);margin:0}
.faq-section{background:var(--white);border-top:1px solid var(--line)}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line);padding:0}.faq-list summary{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;font-size:21px;font-weight:600;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary::after{content:'+';color:var(--blue);font:300 30px/1 ui-monospace,monospace}.faq-list details[open] summary::after{content:'−'}.faq-list details p{max-width:840px;color:var(--muted);font-size:17px;margin:0;padding:0 55px 28px 0}
.download-section{background:var(--blue);color:var(--white);padding:110px max(24px,calc((100vw - var(--max))/2));text-align:left}.download-section .eyebrow{color:#d9e8ff}.download-section h2{font-size:clamp(45px,5.5vw,78px);font-weight:300;letter-spacing:-.045em;line-height:1;margin:0 0 25px}.download-section>p:not(.eyebrow):not(.download-meta){max-width:690px;font-size:20px;margin:0 0 35px}.light-button{background:var(--white)!important;color:var(--ink)!important}.light-button:hover{background:#e8e8e5!important}.outline-light{border-color:rgba(255,255,255,.65);color:var(--white)}.outline-light:hover{border-color:var(--white)}.download-meta{font-size:13px;margin:23px 0 0;color:#d8e7fa}
footer{background:var(--ink);color:var(--white);padding:70px max(24px,calc((100vw - var(--max))/2));display:grid;grid-template-columns:1fr 1fr;gap:50px}footer>div>p{color:#858b94;max-width:380px}.footer-links{display:flex;justify-content:flex-end;gap:25px;flex-wrap:wrap}.footer-links a{border-bottom:1px solid transparent}.footer-links a:hover{border-color:var(--white)}.legal{grid-column:1/-1;border-top:1px solid var(--dark-line);padding-top:28px;color:#6f757e;font-size:12px;margin:20px 0 0}
@keyframes signal{to{stroke-dashoffset:-48}}@keyframes pulse{50%{opacity:.35}}
@media(max-width:1000px){.site-header{padding:0 24px}.hero{grid-template-columns:1fr;padding:75px 24px}.diagnostic-visual{min-height:0;max-width:720px}.section{padding:90px 24px}.section-heading{grid-template-columns:1fr 2fr}.section-heading>p:last-child{grid-column:2}.principles{padding:0 24px}.trust-section{grid-template-columns:1fr}.safety-section{margin:0 24px 90px}.download-section,footer{padding-left:24px;padding-right:24px}}
@media(max-width:760px){.site-header nav{display:none;position:absolute;top:82px;left:0;right:0;background:var(--ink);padding:18px 24px 26px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--dark-line);gap:5px}.site-header nav.open{display:flex}.site-header nav a{border-bottom:1px solid var(--dark-line)}.menu-toggle{display:block}.hero{padding-top:55px}.hero h1{font-size:50px}.diagnostic-visual{padding:13px}.principles{grid-template-columns:1fr 1fr;padding:0}.principles p,.principles p:first-child{border:1px solid var(--line);border-width:0 1px 1px 0}.section-heading{grid-template-columns:1fr;gap:18px;margin-bottom:50px}.section-heading>p:last-child{grid-column:auto}.resource-index{grid-template-columns:1fr}.table-row{grid-template-columns:1fr;gap:4px;padding:20px 0}.table-head{display:none}.capability-list article{grid-template-columns:48px 1fr}.trust-section{gap:35px}.safety-section{grid-template-columns:1fr}.download-actions .button{width:100%}footer{grid-template-columns:1fr}.footer-links{justify-content:flex-start}.legal{grid-column:auto}}
@media(max-width:420px){.hero h1{font-size:42px}.hero-actions .button{width:100%}.resource-index>a{grid-template-columns:48px 1fr 18px;padding:20px 14px}.section,.download-section{padding-top:75px;padding-bottom:75px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}