:root{--navy:#18213a;--navy2:#25325a;--yellow:#f2bd2c;--yellow-d:#b98400;--bg:#f5f7fb;--card:#fff;--ink:#18213a;--muted:#55607a;--line:#e3e7f0;--good:#1d7a46;--r:20px;
 --font:"Inter","Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.55;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:#1f4fb8}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--yellow);outline-offset:2px;border-radius:6px}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:99}
/* header */
header.site{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;font-size:20px;letter-spacing:-.3px}
.brand img{width:38px;height:38px;border-radius:10px}
.brand small{display:block;font-size:10.5px;letter-spacing:2.6px;font-weight:700;color:var(--yellow-d);text-transform:uppercase;margin-top:-2px}
nav.main{display:flex;gap:4px;flex-wrap:wrap}
nav.main a{text-decoration:none;color:var(--ink);font-weight:600;font-size:15px;padding:8px 12px;border-radius:999px}
nav.main a[aria-current="page"],nav.main a:hover{background:#eef1f7}
nav.main a.cta{background:var(--navy);color:#fff}
@media (max-width:760px){nav.main{gap:0}nav.main a{padding:7px 9px;font-size:14px}.brand small{display:none}header.site .wrap{flex-wrap:wrap;padding-top:8px;padding-bottom:8px}}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-weight:700;border-radius:999px;padding:14px 24px;font-size:17px;border:2px solid transparent;cursor:pointer;font-family:inherit}
.btn.y{background:var(--yellow);color:var(--navy)}.btn.y:hover{background:#ffcd45}
.btn.n{background:var(--navy);color:#fff}.btn.o{background:transparent;border-color:currentColor;color:inherit}
.btn.sm{padding:9px 16px;font-size:15px}
/* hero */
.hero{background:radial-gradient(circle at 20% 10%,#2b3a66 0%,var(--navy) 55%,#121a2f 100%);color:#fff;padding:64px 0 72px}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(36px,5.2vw,58px);line-height:1.05;letter-spacing:-1.5px;margin:12px 0 18px}
.hero p.lead{font-size:20px;color:#d3dbef;max-width:560px}
.eyebrow{font-size:13px;font-weight:800;letter-spacing:2.5px;text-transform:uppercase;color:var(--yellow)}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.hero video{width:100%;border-radius:22px;box-shadow:0 24px 60px rgba(0,0,0,.45);background:#000;aspect-ratio:1/1}
.trust{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;font-size:15px;color:#c9d2ea}
.trust span::before{content:"✓ ";color:var(--yellow);font-weight:800}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr}.hero{padding:40px 0 48px}}
/* sections */
section.band{padding:64px 0}
section.band.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2.sec{font-size:clamp(28px,3.6vw,40px);letter-spacing:-1px;line-height:1.12;margin:6px 0 14px}
p.sub{font-size:19px;color:var(--muted);max-width:720px;margin:0 0 30px}
.story{display:grid;grid-template-columns:auto 1fr;gap:30px;align-items:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:34px}
.story blockquote{margin:0;font-size:22px;line-height:1.45;font-weight:600}
.story cite{display:block;margin-top:14px;font-style:normal;color:var(--muted);font-size:16px}
.story .q{font-size:80px;line-height:.7;color:var(--yellow);font-weight:900}
.features{display:grid;gap:22px}
.feat{display:grid;grid-template-columns:260px 1fr;gap:34px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.feat:nth-child(even){grid-template-columns:1fr 260px}.feat:nth-child(even) .phone{order:2}
.feat h3{font-size:26px;margin:4px 0 10px;letter-spacing:-.4px}
.feat p{color:var(--muted);margin:0 0 10px}
.feat ul{margin:6px 0 0;padding-left:20px;color:var(--ink)}
.phone{border-radius:30px;background:#0f1525;padding:8px;box-shadow:0 16px 36px rgba(24,33,58,.22);max-width:260px;margin:0 auto}
.phone img{border-radius:23px;aspect-ratio:390/700;object-fit:cover;object-position:top;width:100%}
@media (max-width:760px){.feat,.feat:nth-child(even){grid-template-columns:1fr}.feat:nth-child(even) .phone{order:0}.phone{max-width:220px}}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.tile .ic{font-size:30px}
.tile h3{margin:8px 0 6px;font-size:19px}.tile p{margin:0;color:var(--muted);font-size:16px}
.ctaband{background:var(--navy);color:#fff;border-radius:28px;padding:44px;text-align:center}
.ctaband h2{font-size:clamp(28px,3.6vw,40px);margin:0 0 10px;letter-spacing:-1px}
.ctaband p{color:#c9d2ea;margin:0 0 24px;font-size:18px}
/* install page */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 24px}
.tabs button{font:inherit;font-weight:700;border:2px solid var(--line);background:#fff;border-radius:999px;padding:10px 18px;cursor:pointer;color:var(--ink)}
.tabs button[aria-selected="true"]{background:var(--navy);border-color:var(--navy);color:#fff}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px}
.panel[hidden]{display:none}
ol.steps{counter-reset:s;list-style:none;padding:0;margin:14px 0}
ol.steps li{counter-increment:s;position:relative;padding:4px 0 18px 56px}
ol.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;background:var(--yellow);color:var(--navy);font-weight:800;display:flex;align-items:center;justify-content:center}
ol.steps li strong{display:block;font-size:18px}
.note{background:#fff8e1;border:1px solid #f3dc92;border-radius:14px;padding:14px 18px;margin:14px 0;font-size:16px}
.note.info{background:#eef4ff;border-color:#cfdcfa}
kbd{background:#eef1f7;border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:1px 7px;font-family:inherit;font-size:.92em}
.dl{display:flex;gap:14px;align-items:center;flex-wrap:wrap;background:#f5f7fb;border:1px dashed #c7cfe0;border-radius:16px;padding:18px;margin:16px 0}
.dl .meta{color:var(--muted);font-size:15px}
/* faq */
details.faq{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 20px;margin-bottom:10px}
details.faq summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";float:right;font-size:22px;line-height:1;color:var(--muted)}
details.faq[open] summary::after{content:"–"}
details.faq p{margin:0 0 16px;color:#36405a}
/* chat */
.chat{background:#fff;border:1px solid var(--line);border-radius:var(--r);display:flex;flex-direction:column;height:min(640px,78vh);overflow:hidden;box-shadow:0 10px 30px rgba(24,33,58,.08)}
.chat .top{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line);background:#fafbfd}
.chat .top img{width:36px;height:36px;border-radius:9px}
.chat .top b{display:block}.chat .top small{color:var(--muted)}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:#bbb;margin-right:6px;vertical-align:middle}.dot.on{background:#2ca15c}
.msgs{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:12px}
.m{max-width:86%;padding:12px 16px;border-radius:18px;white-space:pre-wrap;font-size:16px}
.m.bot{background:#f1f4f9;align-self:flex-start;border-bottom-left-radius:6px}
.m.me{background:var(--navy);color:#fff;align-self:flex-end;border-bottom-right-radius:6px}
.m.typing{color:var(--muted);font-style:italic}
.chips{display:flex;gap:8px;flex-wrap:wrap;padding:0 18px 12px}
.chips button{font:inherit;font-size:14px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 12px;cursor:pointer}
.chat form{display:flex;gap:10px;padding:12px;border-top:1px solid var(--line)}
.chat textarea{flex:1;font:inherit;border:1px solid #cfd6e4;border-radius:14px;padding:11px 14px;resize:none;min-height:48px;max-height:120px}
.chat .fine{font-size:12.5px;color:var(--muted);padding:0 16px 10px}
.support{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:start}
@media (max-width:900px){.support{grid-template-columns:1fr}}
/* legal */
.legal{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:34px;max-width:860px}
.legal h2{margin-top:34px;font-size:24px}.legal h2:first-child{margin-top:0}
.legal p,.legal li{color:#36405a}
.toc{columns:2;gap:24px;padding-left:20px}
/* footer */
footer.site{background:var(--navy);color:#c9d2ea;padding:44px 0 30px;margin-top:64px;font-size:15px}
footer.site .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
footer.site a{color:#fff;text-decoration:none}footer.site a:hover{text-decoration:underline}
footer.site ul{list-style:none;padding:0;margin:8px 0 0}footer.site li{margin:6px 0}
footer.site .legalline{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;font-size:13.5px}
@media (max-width:760px){footer.site .cols{grid-template-columns:1fr}}
.helpfab{position:fixed;right:18px;bottom:18px;z-index:30;background:var(--yellow);color:var(--navy);font-weight:800;text-decoration:none;border-radius:999px;padding:13px 20px;box-shadow:0 8px 24px rgba(24,33,58,.3)}
.helpfab:hover{background:#ffcd45}
.pagehead{background:#fff;border-bottom:1px solid var(--line);padding:44px 0 34px}
.pagehead h1{font-size:clamp(32px,4.4vw,48px);letter-spacing:-1.2px;margin:6px 0 8px;line-height:1.08}
.pagehead p{color:var(--muted);font-size:19px;margin:0;max-width:760px}
main{display:block}