:root{--blue:#00A0D5;--blue-l:#35c3f0;--bg:#16181b;--panel:#1f2226;--panel2:#262a2f;--line:#33383e;--ink:#f2f5f7;--ink2:#a9b1b9;--mute:#79818a;--hdr:rgba(22,24,27,.8);--svgbg:#1a1d20;--edge:#e9eef2;--ground:#202428;--shadow:rgba(0,0,0,.7);--wrap:1120px;color-scheme:dark}
:root[data-theme=light]{--blue-l:#0088b6;--bg:#fff;--panel:#f5f8fa;--panel2:#e9eef2;--line:#dde4ea;--ink:#16181b;--ink2:#4b545c;--mute:#74808a;--hdr:rgba(255,255,255,.85);--svgbg:#f1f5f8;--edge:#2b2b2b;--ground:#e6ecf1;--shadow:rgba(30,55,80,.22);color-scheme:light}
[hidden]{display:none!important}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px;background:var(--bg)}
body{margin:0;font:17px/1.65 "Inter",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--blue-l)}
:focus-visible{outline:3px solid var(--blue-l);outline-offset:3px;border-radius:6px}
h1,h2,h3{line-height:1.1;letter-spacing:-.03em;margin:0 0 .5em}
header{position:sticky;top:0;z-index:10;background:var(--hdr);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.bar{max-width:var(--wrap);margin:0 auto;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);text-decoration:none}
.brand img{width:34px;height:34px;background:#fff;border-radius:9px;padding:2px}
.brand span{font-weight:400;color:var(--mute)}
nav{display:flex;align-items:center;gap:24px}
nav a{color:var(--ink2);text-decoration:none;font-weight:500;font-size:.95rem}
nav a:hover{color:var(--ink)}
.btn{display:inline-block;background:var(--blue);color:#fff!important;padding:14px 26px;border-radius:12px;font-weight:600;text-decoration:none;transition:transform .15s,box-shadow .15s;box-shadow:0 8px 28px -8px rgba(0,160,213,.6)}
.btn:hover{transform:translateY(-1px);box-shadow:0 12px 32px -6px rgba(0,160,213,.7)}
.btn.sm{padding:9px 16px;font-size:.92rem;box-shadow:none}
.btn.ghost{background:transparent;color:var(--ink)!important;box-shadow:inset 0 0 0 1px var(--line)}
.btn.ghost:hover{background:var(--panel)}
main.home{max-width:none;padding:0}
.w{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.hero{text-align:center;padding:88px 0 40px;background:radial-gradient(60% 50% at 50% 0,rgba(0,160,213,.18),transparent 70%)}
.hero h1{font-size:clamp(2.4rem,5.6vw,4.4rem);font-weight:800;max-width:14em;margin:0 auto 20px}
.hero h1 em{font-style:normal;color:var(--blue-l)}
.lede{font-size:1.2rem;color:var(--ink2);max-width:56em;margin:0 auto}
.cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin:32px 0 12px}
.fine{font-size:.88rem;color:var(--mute);margin:0}
.demo{margin:56px auto 0;max-width:960px;background:var(--panel);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 40px 80px -30px var(--shadow);text-align:left}
.demo-top{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);color:var(--mute);font-size:.85rem}
.demo-top i{width:11px;height:11px;border-radius:50%;background:var(--line)}
.demo-top b{margin-left:8px;color:var(--ink2);font-weight:600}
.demo svg{display:block;width:100%;height:auto;background:linear-gradient(var(--line) 1px,transparent 1px) 0 0/100% 40px,linear-gradient(90deg,var(--line) 1px,transparent 1px) 0 0/40px 100%;background-color:var(--svgbg)}
.demo svg text{font:500 12px "Inter",sans-serif;fill:var(--ink2)}
.ctrls{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;padding:22px 24px;border-top:1px solid var(--line)}
.ctrls label{display:flex;justify-content:space-between;font-size:.9rem;color:var(--ink2);margin-bottom:8px}
.ctrls output{color:var(--ink);font-weight:600}
input[type=range]{width:100%;accent-color:var(--blue)}
section.band{padding:104px 0}
h2.big{font-size:clamp(2rem,4vw,3rem);font-weight:800;max-width:14em}
.sub{color:var(--ink2);max-width:34em;margin:0 0 48px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:20px;overflow:hidden}
.steps div{padding:32px;background:var(--panel)}
.steps div+div{border-left:1px solid var(--line)}
.steps h3{font-size:1.2rem}
.steps p{margin:0;color:var(--ink2)}
.steps b{display:block;color:var(--blue-l);font-size:.9rem;margin-bottom:14px}
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.tile{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:30px;transition:border-color .2s}
.tile:hover{border-color:rgba(0,160,213,.5)}
.tile h3{font-size:1.25rem}
.tile p{margin:0;color:var(--ink2)}
.t3{grid-column:span 3}.t2{grid-column:span 2}.t4{grid-column:span 4}
.tile.hl{background:linear-gradient(135deg,rgba(0,160,213,.22),var(--panel) 70%)}
.tile .big-n{font-size:2.6rem;font-weight:800;color:var(--blue-l);letter-spacing:-.03em;line-height:1;margin-bottom:10px}
.price-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.plan{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:40px;box-shadow:0 0 0 1px rgba(0,160,213,.25),0 30px 80px -30px rgba(0,160,213,.35)}
.price{font-size:4rem;font-weight:800;letter-spacing:-.04em;line-height:1}
.price small{font-size:1.1rem;font-weight:500;color:var(--mute);letter-spacing:0}
.plan ul{list-style:none;padding:0;margin:22px 0 28px;color:var(--ink2)}
.plan li{padding:8px 0;border-bottom:1px solid var(--line)}
.plan li::before{content:"✓";color:var(--blue-l);margin-right:10px;font-weight:700}
.note{background:var(--panel);border-left:3px solid var(--blue);padding:12px 16px;border-radius:8px;font-size:.92rem;color:var(--ink2)}
.install{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.install ol{color:var(--ink2);padding-left:1.2em;margin:0 0 20px}
details{border-bottom:1px solid var(--line);padding:20px 0}
details:first-of-type{border-top:1px solid var(--line)}
summary{cursor:pointer;font-weight:600;font-size:1.08rem;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--blue-l);font-size:1.6rem;line-height:1;transition:transform .2s}
details[open] summary::after{transform:rotate(45deg)}
details p{margin:10px 0 0;color:var(--ink2);max-width:42em}
.faq{max-width:760px}
/* legal pages */
main{max-width:760px;margin:0 auto;padding:56px 24px}
main h1{font-size:2.6rem;font-weight:800}
main h2{font-size:1.3rem;margin-top:2em}
main p,main li{color:var(--ink2)}
main strong{color:var(--ink)}
table{border-collapse:collapse;width:100%;margin:12px 0}
td,th{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top;color:var(--ink2)}
th{background:var(--panel);color:var(--ink)}
code{background:var(--panel2);padding:2px 6px;border-radius:4px;font-size:.9em}
footer{max-width:var(--wrap);margin:0 auto;padding:32px 24px 48px;color:var(--mute);font-size:.9rem;border-top:1px solid var(--line)}
footer a{color:var(--mute);margin-right:18px;text-decoration:none}
footer a:hover{color:var(--ink)}
.tg{background:none;border:1px solid var(--line);color:var(--ink);width:38px;height:38px;border-radius:10px;cursor:pointer;font-size:1.1rem;line-height:1}
.tg:hover{background:var(--panel)}
.native{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.checks{list-style:none;padding:0;margin:0}
.checks li{padding:18px 0;border-bottom:1px solid var(--line);color:var(--ink2)}
.checks li:first-child{border-top:1px solid var(--line)}
.checks b{display:block;color:var(--ink);font-size:1.1rem}
.ribbon{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;font-size:.82rem}
.rtabs{display:flex;gap:18px;padding:10px 16px;border-bottom:1px solid var(--line);color:var(--mute);overflow:hidden;white-space:nowrap}
.rtabs .on{color:var(--blue-l);font-weight:600;box-shadow:0 2px 0 var(--blue);padding-bottom:8px;margin-bottom:-11px}
.rbody{display:flex;align-items:center;gap:22px;padding:22px 20px}
.rgrp{display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--ink2);text-align:center}
.rgrp i{width:44px;height:44px;border-radius:10px;background:var(--panel2)}
.rgrp.hot i{background:#fff url(/assets/hirb_512.png) center/cover;box-shadow:0 0 0 2px var(--blue),0 10px 30px -6px rgba(0,160,213,.7)}
.rgrp.hot{color:var(--ink);font-weight:600}
@media(max-width:820px){.native{grid-template-columns:1fr;gap:32px}}
@media(max-width:820px){.ctrls,.steps,.price-wrap,.install{grid-template-columns:1fr}.steps div+div{border-left:0;border-top:1px solid var(--line)}.bento>*{grid-column:span 6}nav a:not(.btn){display:none}section.band{padding:64px 0}.hero{padding-top:48px}.price-wrap,.install{gap:32px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}html{scroll-behavior:auto}}

/* tutorial page */
main.wide{max-width:960px}
.video{position:relative;aspect-ratio:16/9;background:var(--panel);border:1px dashed var(--line);border-radius:20px;overflow:hidden;display:flex;align-items:center;justify-content:center;text-align:center;color:var(--mute);margin:8px 0 8px}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video span{display:block;font-size:3rem;line-height:1;color:var(--blue-l);margin-bottom:8px}
.guide{counter-reset:s;list-style:none;padding:0;margin:0}
.guide li{counter-increment:s;position:relative;padding:22px 0 22px 64px;border-bottom:1px solid var(--line)}
.guide li:first-child{border-top:1px solid var(--line)}
.guide li::before{content:counter(s);position:absolute;left:0;top:20px;width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center}
.guide b{display:block;color:var(--ink);font-size:1.1rem;margin-bottom:4px}
.guide .shot{margin-top:12px;aspect-ratio:16/7;border:1px dashed var(--line);border-radius:12px;background:var(--panel);display:flex;align-items:center;justify-content:center;color:var(--mute);font-size:.9rem}
.cases{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:16px}
.case{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:24px}
.case .shot{aspect-ratio:16/10;border:1px dashed var(--line);border-radius:12px;background:var(--panel2);display:flex;align-items:center;justify-content:center;color:var(--mute);font-size:.9rem;margin-bottom:16px}
.case h3{font-size:1.2rem;margin-bottom:6px}
.case p{margin:0;font-size:.95rem}
@media(max-width:820px){.cases{grid-template-columns:1fr}}