:root{color-scheme:dark;--bg:#060b15;--ink:#eff5ff;--muted:#a2b4cf;--subtle:#7c91ae;--line:#273950;--line2:#3e6488;--cyan:#6edbff;--blue:#4b83ff;--violet:#a398ff;--green:#60e2b7;--gold:#f4ca80;--surface:#0b172a;--surface2:#101f36;--shadow:0 35px 90px #0008;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;color:var(--ink);background:radial-gradient(circle at 78% 3%,#17426b5e,transparent 34%),radial-gradient(circle at 10% 21%,#2f2d6152,transparent 30%),var(--bg);-webkit-font-smoothing:antialiased;min-width:280px}
body:before{content:"";position:fixed;pointer-events:none;inset:0;background-image:linear-gradient(#6a94c407 1px,transparent 1px),linear-gradient(90deg,#6a94c407 1px,transparent 1px);background-size:54px 54px;mask-image:linear-gradient(90deg,transparent 9%,#000 70%);z-index:-1}
a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #8edcff;outline-offset:4px;border-radius:7px}::selection{background:#376eb7;color:#fff}
.wrap{width:min(1180px,calc(100% - 48px));margin-inline:auto}
.skip{position:absolute;top:-70px;left:20px;z-index:40;padding:12px 16px;border-radius:9px;background:#fff;color:#09213e}.skip:focus{top:15px}
.header{height:82px;position:sticky;top:0;z-index:30;backdrop-filter:blur(22px);background:#07101ddf;border-bottom:1px solid #a9cdff1a}.header-in{height:100%;display:flex;align-items:center;gap:28px}.logo{display:inline-flex;align-items:center;gap:11px;white-space:nowrap;font-weight:850;letter-spacing:-.045em;font-size:19px}.logo-mark{width:39px;height:39px;display:grid;place-items:center;color:#e9f8ff;font-weight:950;font-size:14px;letter-spacing:-.14em;transform:rotate(-8deg);border:1px solid #7cd1ff96;clip-path:polygon(50% 0,92% 20%,100% 68%,50% 100%,4% 74%,0 27%);background:linear-gradient(145deg,#397bca,#152948 72%);box-shadow:0 0 22px #518bfa52}.logo small{display:block;font-size:9px;color:#8da8ce;font-weight:700;letter-spacing:.23em;margin-top:3px}.nav{display:flex;align-items:center;gap:23px;margin-left:auto}.nav a{font-size:13px;font-weight:650;color:#b9cbe3;transition:color .18s}.nav a:hover,.nav a[aria-current="page"]{color:#fff}.nav a[aria-current="page"]:after{content:"";display:block;height:2px;background:linear-gradient(90deg,var(--cyan),var(--violet));margin-top:5px;border-radius:3px}.head-cta{border:1px solid #6aa7ed66;border-radius:11px;padding:11px 15px;background:#153357;color:#e8f5ff;font-size:13px;font-weight:740;white-space:nowrap}.head-cta:hover{background:#244a78}.mobile-nav{display:none;position:relative;margin-left:auto}.mobile-nav summary{list-style:none;background:#173151;border:1px solid #496c8d;border-radius:10px;padding:10px 14px;color:#e3f2ff;font-weight:700;font-size:13px}.mobile-nav summary::-webkit-details-marker{display:none}.mobile-nav summary:after{content:" ☰"}.mobile-nav[open] summary:after{content:" ×"}.mobile-links{position:absolute;top:46px;right:0;min-width:220px;padding:10px;display:grid;gap:2px;background:#0f2034;border:1px solid #4e7090;border-radius:14px;box-shadow:var(--shadow)}.mobile-links a{padding:13px 11px;border-radius:8px;font-size:14px;color:#dceafd}.mobile-links a:hover,.mobile-links a[aria-current="page"]{background:#1a3958}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 21px;border-radius:12px;font-size:14px;font-weight:800;min-height:47px;transition:transform .2s,box-shadow .2s,border-color .2s;text-align:center}.btn:hover{transform:translateY(-2px)}.btn-primary{background:linear-gradient(110deg,#71e0ff,#6196ff 58%,#9c87ff);color:#061326;box-shadow:0 15px 38px #3779df48}.btn-quiet{border:1px solid #5c84a788;background:#ffffff0c;color:#ebf5ff}.btn-quiet:hover{border-color:#86caff}.btn-disabled{background:#293e55;color:#b4c3d9;border:1px solid #48617a;cursor:not-allowed;box-shadow:none}.btn-disabled:hover{transform:none}.btn-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.eyebrow{display:inline-flex;gap:9px;align-items:center;padding:8px 13px;border-radius:50px;border:1px solid #5db0e64a;background:#0f2b45c9;color:#8ddeff;font-size:11px;font-weight:850;letter-spacing:.1em;text-transform:uppercase}.eyebrow:before{content:"";height:7px;width:7px;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green)}.kicker{font-size:11px;color:#7edafa;letter-spacing:.19em;text-transform:uppercase;font-weight:800}.headline{font-size:clamp(45px,5.5vw,76px);font-weight:850;letter-spacing:-.069em;line-height:1.065;margin:24px 0}.gradient-text{background:linear-gradient(102deg,#c7f0ff,#78b8ff 56%,#b6a8ff);background-clip:text;-webkit-background-clip:text;color:transparent}.lead{font-size:clamp(15px,1.5vw,18px);line-height:1.78;color:#b5c9e3;max-width:680px}.meta{font-size:12px;line-height:1.65;color:#8aa3c3}.hero{padding:90px 0 106px;position:relative;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;align-items:center;gap:30px}.hero .btn-row{margin:27px 0 20px}.hero .meta{max-width:600px}.page-intro{padding:78px 0 42px}.page-intro h1{font-size:clamp(39px,5vw,65px);letter-spacing:-.066em;line-height:1.09;max-width:930px;margin:19px 0}.page-intro .lead{margin-bottom:0}.separator{border:0;border-top:1px solid #55769c35;margin:0}.section{padding:82px 0}.section h2{font-size:clamp(29px,3.4vw,46px);line-height:1.14;letter-spacing:-.05em;margin:10px 0 15px}.section-intro{font-size:15px;line-height:1.8;color:#a9bfdc;max-width:720px}.section-soft{background:radial-gradient(ellipse at 75% 15%,#1837604d,transparent 55%),#091625aa;border-block:1px solid #3c5b7538}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.card{position:relative;overflow:hidden;padding:27px;background:linear-gradient(145deg,#152942dc,#0d1b2fe8);border:1px solid #4061838c;border-radius:21px;box-shadow:0 18px 40px #0002}.card:before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse at 90% -20%,#50a9ff16,transparent 60%)}.card>*{position:relative}.card h3{font-size:19px;letter-spacing:-.03em;margin:13px 0 9px}.card p{font-size:13px;line-height:1.8;color:#a7bed9;margin:0}.card-icon{display:grid;place-items:center;width:47px;height:47px;border:1px solid #60b4e774;border-radius:14px;background:linear-gradient(135deg,#153f66,#171e40);font-size:24px;color:#9fe5ff;box-shadow:inset 0 1px #ffffff20}.pill{display:inline-flex;align-items:center;border:1px solid #3d6b81;background:#0d3440;font-size:10px;font-weight:850;border-radius:30px;padding:6px 10px;color:#8cf2d1;letter-spacing:.025em}.pill.warn{border-color:#6f6041;background:#392f1c;color:#f0d39b}.pill.neutral{border-color:#526783;background:#24344c;color:#bdcde5}.pill-row{display:flex;gap:9px;flex-wrap:wrap;align-items:center}.split{display:grid;grid-template-columns:1.02fr .98fr;gap:40px;align-items:center}.stat-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:24px 0}.stat{padding:20px 22px;border:1px solid #3c628355;border-radius:17px;background:#0f2135bb}.stat strong{font-size:19px;display:block;margin-bottom:5px}.stat span{font-size:12px;color:#94afcc;line-height:1.6}.stepnum{font-size:35px;letter-spacing:-.07em;color:#77caff;font-weight:850}.list-check{list-style:none;padding:0;margin:18px 0;display:grid;gap:12px}.list-check li{display:flex;gap:11px;align-items:flex-start;color:#c9d9ed;font-size:14px;line-height:1.65}.list-check li:before{content:"✓";color:#73e6c2;font-weight:850}.action-panel{border:1px solid #436986;background:radial-gradient(ellipse at 95% 10%,#2967a851,transparent 55%),linear-gradient(130deg,#152c48,#0d2033);padding:33px;border-radius:24px;display:flex;align-items:center;justify-content:space-between;gap:27px}.action-panel h2{font-size:30px;margin:10px 0}.action-panel p{font-size:14px;line-height:1.7;color:#aac2dc;max-width:650px}.divider{border-top:1px solid #5274974a;margin:20px 0}.number-chip{border:1px solid #52759a;border-radius:9px;padding:6px 10px;color:#8ecffa;background:#0f2845;font-size:11px;font-weight:900}
.panel{border-radius:21px;border:1px solid #345d83;background:#0b2035;padding:24px}.panel h3{margin:0 0 12px}.panel p{font-size:14px;line-height:1.75;color:#afc6e2}.panel .btn-row{margin-top:23px}
.code-shell{border:1px solid #46698c;background:#030b15;border-radius:15px;overflow:hidden;margin:20px 0;box-shadow:0 18px 40px #0006}.code-head{display:flex;justify-content:space-between;align-items:center;padding:13px 17px;border-bottom:1px solid #35506d;color:#9fbad9;font-size:12px}.traffic{display:flex;gap:6px}.traffic b{width:8px;height:8px;border-radius:100%;background:#526b85}.traffic b:first-child{background:#cf7f82}.traffic b:nth-child(2){background:#dbba74}.traffic b:nth-child(3){background:#66bfa5}.code-shell pre{font-size:12px;line-height:1.8;color:#a5e4db;padding:20px;white-space:pre-wrap;overflow-wrap:anywhere;margin:0;user-select:text}.code-shell code{font:inherit}.code-sub{font-size:12px;color:#8faac7;padding:0 19px 15px;line-height:1.7}
.price-card{padding:32px;border-radius:24px;border:1px solid #49698b;background:linear-gradient(145deg,#172d49,#0b1a2f);display:flex;flex-direction:column;gap:12px;min-height:420px}.price-card.featured{border-color:#70b4ff;box-shadow:0 0 0 1px #76b9ff33,0 35px 75px #194b9a3c}.price-card h3{font-size:25px;letter-spacing:-.045em;margin:10px 0 0}.price-card p{font-size:13px;line-height:1.8;color:#a8bfdb}.price-value{font-size:26px;font-weight:850;letter-spacing:-.04em}.price-value small{display:block;color:#92acc9;font-size:12px;font-weight:500;margin-top:4px}.price-card ul{list-style:none;padding:0;margin:12px 0;display:grid;gap:11px}.price-card li{font-size:13px;color:#d0e0f2;line-height:1.65}.price-card li:before{content:"✓";margin-right:9px;color:#6de2bf}.price-card .btn{margin-top:auto}
.faq{display:grid;gap:12px;max-width:880px}.faq details{border:1px solid #395b7b;border-radius:14px;padding:0 20px;background:#0e1e33}.faq summary{padding:20px 5px;cursor:pointer;font-size:15px;font-weight:750;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";float:right;color:#84d3f4;font-size:23px;line-height:18px}.faq details[open] summary:after{content:"−"}.faq details p{color:#b1c6e0;font-size:14px;line-height:1.85;margin:0 0 20px}.section-anchor{scroll-margin-top:95px}.small-text{font-size:13px;line-height:1.75;color:#9db5d0}.info-line{display:flex;gap:12px;align-items:start;border-bottom:1px solid #395473;padding:15px 0;font-size:14px;line-height:1.7}.info-line b{min-width:135px;color:#eef7ff}.info-line span{color:#a9c1db}.legal{max-width:820px}.legal h2{font-size:24px;letter-spacing:-.035em;margin:34px 0 10px}.legal p,.legal li{font-size:14px;line-height:1.85;color:#b2c7e1}
.footer{border-top:1px solid #3b577455;background:#06111ec9;padding:55px 0 28px}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:37px}.footer p{font-size:12px;line-height:1.8;color:#91aac7;max-width:290px}.footer h4{font-size:12px;text-transform:uppercase;letter-spacing:.13em;color:#cdddf2;margin:2px 0 19px}.footer-links{display:grid;gap:12px}.footer-links a{font-size:13px;color:#a8bfd9}.footer-links a:hover{color:#fff}.footer-bottom{margin-top:40px;padding-top:25px;border-top:1px solid #29486566;display:flex;justify-content:space-between;gap:15px;color:#7796b8;font-size:11px}
.stage-wrap{position:relative;aspect-ratio:1.2/1;min-height:360px;isolation:isolate;display:grid;place-items:center;perspective:1050px}.stage-wrap:before{content:"";position:absolute;inset:13% 10%;background:radial-gradient(ellipse,#2885df58,transparent 68%);filter:blur(34px);z-index:-1}.stage-grid{position:absolute;inset:19% 0 5%;transform:rotateX(68deg) rotateZ(-28deg);background-image:linear-gradient(#61aef627 1px,transparent 1px),linear-gradient(90deg,#61aef627 1px,transparent 1px);background-size:31px 31px;mask-image:radial-gradient(ellipse,#000 10%,transparent 72%)}.orbit{position:absolute;width:88%;aspect-ratio:1.6;border:1px solid #5dd4ff55;border-radius:50%;transform:rotateX(63deg) rotateZ(-26deg);box-shadow:0 0 22px #4aa5ff25,inset 0 0 25px #4aa5ff17}.orbit.two{width:66%;transform:rotateX(65deg) rotateZ(28deg);border-color:#a09aff63}
.device-3d{width:min(365px,82%);height:252px;background:linear-gradient(160deg,#1a3d60,#071626);border:2px solid #7fc4ff75;border-radius:22px;position:relative;transform:rotateY(-16deg) rotateX(9deg) rotateZ(-5deg);box-shadow:12px 13px 0 #08192a,20px 27px 60px #000a,inset 0 0 0 3px #061222;animation:levitate 6s ease-in-out infinite}.device-3d:before{content:"";position:absolute;inset:8px;border:1px solid #86ceff24;border-radius:15px;pointer-events:none}.device-bar{display:flex;justify-content:space-between;padding:23px 24px 12px;font-size:10px;letter-spacing:.15em;font-weight:900;color:#c6edff}.device-bar span:last-child{color:#68e5c4}.screen-content{padding:8px 24px;display:grid;gap:12px}.screen-line{height:11px;width:76%;border-radius:20px;background:linear-gradient(90deg,#6db7efaa,transparent)}.screen-line.s2{width:55%;opacity:.66}.screen-line.s3{width:88%;opacity:.5}.screen-block{border:1px solid #36799c;background:linear-gradient(120deg,#102e44,#123658);border-radius:12px;height:84px;margin-top:5px;display:flex;justify-content:space-around;align-items:center}.screen-block i{width:34px;height:34px;border-radius:10px;display:block;border:1px solid #66aada;background:linear-gradient(140deg,#2e78ac,#183b60);box-shadow:0 0 21px #4398d942}.screen-block i:nth-child(2){border-radius:50%;background:#55dfbe55;box-shadow:0 0 20px #5ee8b966}
.floating{position:absolute;background:#132d49ed;backdrop-filter:blur(9px);border:1px solid #74baff6b;border-radius:14px;box-shadow:0 18px 45px #02071391;padding:13px 16px;min-width:138px;font-weight:800;font-size:12px;color:#dff3ff;animation:levitate 6s ease-in-out infinite;animation-delay:-2s}.floating span{display:block;font-size:10px;font-weight:500;color:#8fbad6;margin-top:6px}.floating.a{top:11%;right:0;transform:rotate(5deg)}.floating.b{bottom:13%;left:0;transform:rotate(-5deg)}.floating.a:before,.floating.b:before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:#6be5be;box-shadow:0 0 9px #6be5be;margin-right:6px}.float-bottom{position:absolute;bottom:1%;left:24%;right:24%;height:2px;background:#4b91e795;box-shadow:0 0 42px 15px #2968b938;transform:rotateX(78deg)}
@keyframes levitate{0%,100%{translate:0 0}50%{translate:0 -11px}}
@media(max-width:1080px){.nav{gap:14px}.nav a{font-size:12px}.hero-grid{gap:16px}.headline{font-size:clamp(44px,5vw,62px)}.footer-grid{gap:24px}}
@media(max-width:850px){.nav{display:none}.mobile-nav{display:block}.head-cta{margin-left:auto}.hero{padding:70px 0}.hero-grid,.split{grid-template-columns:1fr}.hero-grid>.stage-wrap{max-width:620px;width:100%;margin:auto}.stage-wrap{min-height:320px}.grid3{grid-template-columns:repeat(2,minmax(0,1fr))}.grid4{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.section{padding:67px 0}}
@media(max-width:580px){.wrap{width:min(100% - 34px,520px)}.header{height:70px}.logo{font-size:15px;gap:8px}.logo-mark{width:34px;height:34px}.logo small{font-size:7px}.header-in{gap:10px}.head-cta{font-size:11px;padding:10px 11px}.hero{padding:51px 0 52px}.hero .btn-row{margin:23px 0 14px}.headline{font-size:clamp(40px,10.3vw,56px)}.lead{font-size:15px}.stage-wrap{min-height:300px;aspect-ratio:1.1}.device-3d{width:76%;height:196px;border-radius:15px}.device-bar{padding:17px 16px 7px}.screen-content{padding:5px 15px;gap:9px}.screen-block{height:65px}.floating{padding:11px;min-width:116px;font-size:10px}.floating.a{top:7%;right:-3px}.floating.b{bottom:12%;left:-5px}.btn-row .btn{width:100%}.page-intro{padding:52px 0 30px}.page-intro h1{font-size:40px}.section{padding:54px 0}.section h2{font-size:32px}.grid2,.grid3,.grid4{grid-template-columns:1fr}.card,.price-card{padding:23px}.stat-strip{grid-template-columns:1fr}.action-panel{padding:25px;flex-direction:column;align-items:stretch}.action-panel .btn{width:100%}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.footer-grid>:first-child{grid-column:1/-1}.footer-bottom{flex-direction:column}.info-line{display:block}.info-line b{display:block;margin-bottom:5px}.code-shell pre{font-size:11px}.mobile-links{right:-60px;min-width:min(300px,calc(100vw - 36px))}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

.mt17{margin-top:17px}.mt20{margin-top:20px}.mt23{margin-top:23px}.mt24{margin-top:24px}.mt25{margin-top:25px}.mt27{margin-top:27px}

/* Browser-verified small-screen containment: no header or card overscroll. */
@media(max-width:850px){.action-panel{flex-direction:column;align-items:flex-start}.action-panel .btn-row{width:100%}.stage-wrap{overflow:clip}}
@media(max-width:580px){.header-in{gap:5px}.logo{font-size:12px;gap:7px}.logo small{display:none}.logo-mark{width:30px;height:30px}.head-cta{padding:8px 9px;font-size:11px}.mobile-nav summary{padding:8px 9px;font-size:12px}.mobile-links{right:0}}

/* Linux connection: one tap copies the SHA-256 checked installer command. */
.copy-status{min-height:1.5em;margin:12px 0 0;color:var(--green);font-size:13px;line-height:1.6}
.copy-status-error{color:var(--gold)}
#arc-copy-install:disabled{opacity:.8;cursor:progress}
.arc-clipboard-input{position:fixed;top:0;left:-9999px;width:1px;height:1px}

/* ARC focused owner onboarding — one 3D scene, clear primary action. */
.arc-steps{padding:18px 0 42px}
.arc-steps>.wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.arc-step{display:flex;gap:14px;align-items:center;padding:19px 20px;border-radius:17px;border:1px solid #4168899c;background:#12263dcc;font-weight:700;font-size:14px}
.arc-step b{display:grid;place-items:center;color:#a3ddff;border:1px solid #4784bb;background:#183e63;border-radius:12px;min-width:35px;height:35px;font-size:13px}
.arc-footer-simple{display:flex;align-items:center;flex-wrap:wrap;gap:20px;justify-content:space-between;padding:25px 0}
.arc-footer-simple .logo{font-size:15px}
.arc-footer-simple .logo-mark{width:28px;height:28px;font-size:12px}
.arc-footer-simple nav{display:flex;flex-wrap:wrap;gap:12px 20px;font-size:12px;color:#b8cee6}
.arc-footer-note{font-size:11px;color:#819dbd}
@media(max-width:850px){.arc-steps>.wrap{gap:8px}.arc-step{padding:15px 12px;gap:9px;font-size:12px}}
@media(max-width:580px){.arc-steps>.wrap{grid-template-columns:1fr}.arc-steps{padding:12px 0 30px}.arc-step{padding:12px 16px}.arc-footer-simple{align-items:flex-start;flex-direction:column;gap:15px}.arc-footer-simple nav{gap:10px 16px}.head-cta{font-size:11px}}