:root{
  --ink:#152027;--muted:#5f6a6f;--paper:#f7f8f5;--white:#fff;--line:#d8ddda;--line2:#c3cec0;
  --green:#9adc67;--green-hover:#b6ef8b;--ind:#75b543;--deep:#4a7140;
  --dark:#121b20;--dark2:#1b272d;--dline:#344047;--soft:#eaf0e7;--soft2:#edf1e9;
  --sans:Arial,Helvetica,sans-serif;--mono:"Courier New",ui-monospace,Consolas,monospace;
  --wrap:1320px;--gutter:clamp(20px,5vw,64px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{font-weight:500;margin:0;line-height:1.1}
p{margin:0 0 1em}
ul{margin:0;padding-left:1.1em}
button{font:inherit;cursor:pointer;color:inherit}
:focus-visible{outline:3px solid var(--ind);outline-offset:4px}
.skip{position:fixed;left:12px;top:-80px;background:#fff;padding:12px 16px;z-index:50}
.skip:focus{top:10px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.mono{font-family:var(--mono)}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* event banner */
.event-banner{background:var(--green);border-bottom:1px solid #83be56}
.event-banner .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:12px;padding-bottom:12px;font-size:13px}
.event-banner p{margin:0}
.event-banner strong{font-weight:700}
.event-banner a{font-size:12px;border-bottom:1px solid #315825;text-decoration:none;white-space:nowrap}

/* header */
.site-header{position:sticky;top:0;z-index:40;background:rgba(247,248,245,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.site-header .wrap{height:80px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand img{width:200px}
.site-nav{display:flex;gap:28px;font-size:14px}
.site-nav a{text-decoration:none;padding:6px 0;border-bottom:1px solid transparent}
.site-nav a:hover,.site-nav a[aria-current=page]{border-bottom-color:var(--ink)}
.nav-cta{font-size:14px}
.nav-cta.button{padding:11px 16px;gap:12px;font-size:13px}
.panel-list[hidden]{display:none}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:3px;padding:8px 12px;font-size:13px}

/* type */
.eyebrow{display:flex;align-items:center;gap:10px;font:700 11.5px var(--mono);letter-spacing:1.4px;text-transform:uppercase;margin:0 0 22px;color:var(--ink)}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ind);flex:0 0 7px}
.dark .eyebrow{color:#e5eadd}
h1{font-size:clamp(42px,5.4vw,78px);letter-spacing:-.045em;line-height:1.03;margin-bottom:24px}
h1 em,h2 em{font-style:normal;color:var(--deep)}
.dark h1 em,.dark h2 em{color:var(--green)}
h2{font-size:clamp(32px,3.6vw,54px);letter-spacing:-.035em;margin-bottom:20px}
h3{font-size:22px;letter-spacing:-.015em;line-height:1.25;margin-bottom:10px}
h4{font-size:17px;line-height:1.3;margin-bottom:8px}
.lead{font-size:clamp(18px,1.6vw,21px);line-height:1.55;color:#566269;max-width:640px}
.dark .lead{color:#b4c0c2}
.muted{color:var(--muted)}
.dark .muted{color:#a5b3b4}
.small{font-size:13px;line-height:1.6}
.note{font-size:12.5px;color:var(--muted);line-height:1.6;max-width:900px}
.dark .note{color:#9fadb0}
.label{font:700 11px var(--mono);letter-spacing:1.2px;text-transform:uppercase;color:var(--deep)}
.dark .label{color:var(--green)}

/* buttons */
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin-top:30px}
.button{display:inline-flex;align-items:center;gap:22px;padding:16px 22px;font-size:14px;border-radius:3px;text-decoration:none;transition:background .2s;border:0}
.button.dark{background:var(--dark);color:#fff}
.button.dark:hover{background:#344333}
.button.light{background:var(--green);color:var(--ink)}
.button.light:hover{background:var(--green-hover)}
.text-link{display:inline-flex;gap:14px;align-items:center;font-size:14px;border-bottom:1px solid currentColor;padding-bottom:5px;text-decoration:none}

/* sections */
.section{padding:clamp(56px,7vw,96px) 0}
.section.soft{background:var(--soft)}
.section.white{background:#fff}
.section.dark,.dark{background:var(--dark);color:#edf0ed}
.section-head{display:grid;grid-template-columns:1.2fr 1fr;gap:clamp(24px,6vw,90px);align-items:end;margin-bottom:44px}
.section-head h2{margin:0}
.section-head p{margin:0;font-size:16px;color:var(--muted);max-width:520px}
.dark .section-head p{color:#b4c0c2}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.ruled>*{border-top:1px solid var(--line2);padding-top:20px}
.dark .ruled>*{border-color:var(--dline)}
.ruled p,.card p{font-size:14.5px;color:var(--muted)}
.dark .ruled p,.dark .card p{color:#aab7bb}
.index{font:700 11px var(--mono);letter-spacing:1px;color:var(--deep);display:block;margin-bottom:14px}
.dark .index{color:var(--green)}
.card{background:#fff;border:1px solid var(--line);border-radius:4px;padding:26px}
.dark .card{background:var(--dark2);border-color:var(--dline)}
.soft .card{border-color:#d3ddcb}

/* hero */
.hero{padding:clamp(40px,6vw,80px) 0 clamp(36px,5vw,64px)}
.hero .wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(20px,4vw,60px);align-items:center}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:40px;padding-top:22px;border-top:1px solid var(--line)}
.hero-facts span{display:flex;flex-direction:column;gap:6px;font:700 10.5px var(--mono);letter-spacing:1px;color:var(--muted);text-transform:uppercase}
.hero-facts b{font:500 20px var(--sans);letter-spacing:-.02em;color:var(--ink);text-transform:none}
.product{min-width:0}
.product-stage{aspect-ratio:1672/941;position:relative}
.product-stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 7px 7px rgba(18,27,32,.21))}
.product-caption{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:12px;border-top:1px solid var(--line)}
.product-caption strong{display:block;font-size:17px;font-weight:500}
.product-caption .mono{font-size:10.5px;color:var(--muted);letter-spacing:.8px}
.view-switch{display:flex;border:1px solid var(--line);border-radius:3px;padding:3px;background:#fff}
.view-switch button{border:0;background:none;padding:8px 16px;font-size:12.5px;border-radius:2px}
.view-switch button[aria-pressed=true]{background:var(--dark);color:#fff}

/* page hero (sub pages) */
.page-hero{padding:clamp(48px,7vw,96px) 0 clamp(36px,5vw,64px);border-bottom:1px solid var(--line)}
.page-hero .wrap{display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(24px,6vw,90px);align-items:end}
.page-hero h1{font-size:clamp(40px,4.8vw,68px);margin:0}
.page-hero .lead{margin:0}
.page-hero.dark{border-bottom:0}

/* two doors */
.doors{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid #d3ddcb;background:#fff}
.door{display:block;padding:34px 36px 38px;text-decoration:none;transition:background .2s}
.door+.door{border-left:1px solid #d3ddcb}
.door:hover{background:#f4f8f0}
.door h3{font-size:clamp(24px,2.3vw,32px);letter-spacing:-.03em;margin:14px 0 12px}
.door p{color:var(--muted);font-size:15px;max-width:480px}
.door .text-link{margin-top:8px}
.door.primary{background:var(--dark);color:#fff}
.door.primary:hover{background:#1c2a31}
.door.primary p{color:#b4c0c2}
.door.primary .label{color:var(--green)}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{font:700 11.5px var(--mono);letter-spacing:.3px;padding:6px 10px;border:1px solid #c4cfc0;border-radius:2px;background:#fff;color:#3d4a45}
.dark .chip{background:transparent;border-color:var(--dline);color:#c7d1d3}
.chip-dev{border-style:dashed;text-decoration:none;color:var(--deep)}
.chip.g{background:var(--green);border-color:#83be56;color:var(--ink)}

/* problem block */
.stack{border:1px solid #c8d3c2;border-radius:4px;overflow:hidden;background:#fff}
.stack-top{background:var(--green);padding:20px 24px}
.stack-top p{margin:6px 0 0;font-size:15px}
.stack-base{padding:22px 24px;background:#eef1ed}
.stack-base .label{color:#56625f;display:block;margin-bottom:12px}

/* connection explorer */
.system-map{border:1px solid #c4d1bc;background:#f7f9f4;padding:clamp(20px,3vw,36px)}
.system-core{text-align:center;padding-bottom:22px}
.system-core strong{display:block;font-size:28px;letter-spacing:2px;font-weight:500;margin-top:10px}
.system-core p{font-size:13px;color:var(--muted);margin:6px 0 0}
.device-tabs{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;border-top:1px solid #a8c297;padding-top:22px}
.device-tabs button{background:#fff;border:1px solid #c8d3c2;padding:16px 12px;text-align:left;font-size:15px;min-height:92px;border-radius:2px}
.device-tabs button small{display:block;font:11px/1.45 var(--mono);margin-top:10px;color:var(--muted)}
.device-tabs button[aria-selected=true]{background:var(--dark);color:#fff;border-color:var(--dark)}
.device-tabs button[aria-selected=true] small{color:#b5d1a3}
.device-panel{display:grid;grid-template-columns:1fr 1.1fr;gap:12px 50px;margin-top:26px;border-top:1px solid #d3ddcb;padding-top:24px;min-height:150px}
.device-panel .label{grid-column:1/-1}
.device-panel h3{font-size:25px}
.device-panel p{font-size:15px;color:var(--muted);margin:0}
.io-examples{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:16px}
.io-examples[hidden]{display:none}
.io-examples article{background:var(--soft2);border:1px solid var(--line);padding:18px}
.io-examples span{font:700 10.5px var(--mono);color:var(--deep)}
.io-examples h4{margin-top:10px}
.io-examples p{font-size:13px}

/* pillars */
.pillar{background:#fff;border:1px solid #cdd8c7;border-top:4px solid var(--ind);padding:26px}
.pillar h3{font-size:25px;letter-spacing:-.03em;margin:12px 0 8px}
.pillar .quote{color:var(--deep);font-style:italic;margin-bottom:14px}
.pillar li{font-size:14.5px;color:#56625f;margin:6px 0;line-height:1.5}

/* AI band */
.ai-compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:40px}
.ai-box{border:1px solid var(--dline);border-radius:4px;padding:24px;background:var(--dark2)}
.ai-box.open{border-color:#6f9c4c}
.ai-box h3{margin:10px 0 16px}
.ai-box .label.red{color:#e9a3a3}

/* timeline */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.steps>*{border-top:3px solid var(--ind);padding-top:16px}
.steps h3{margin:8px 0 10px}
.steps b{font-size:26px;font-weight:500;letter-spacing:-.02em;display:block;margin-bottom:8px}
.steps p{font-size:14.5px;color:var(--muted)}

/* packages */
.packages{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.packages.three{grid-template-columns:repeat(3,1fr)}
.pkg{background:#fff;border:1px solid var(--line);border-radius:4px;padding:26px 24px;display:flex;flex-direction:column}
.pkg.featured{background:var(--dark);color:#fff;border-color:var(--dark)}
.pkg h3{font-size:25px;margin:10px 0 4px}
.pkg .for{font-size:13.5px;color:var(--muted);margin-bottom:16px}
.pkg.featured .for{color:#a9b8a6}
.pkg ul{flex:1;margin-bottom:18px}
.pkg li{font-size:14px;margin:6px 0;color:#4a5652;line-height:1.5}
.pkg.featured li{color:#c9d3d4}
.price{border-top:1px solid var(--line);padding-top:16px}
.pkg .price{margin-top:auto}
.pkg>p:not(.for){margin-bottom:22px}
.pkg.featured .price{border-color:var(--dline)}
.price b{display:block;font-size:30px;font-weight:500;letter-spacing:-.03em}
.price span{font:700 11px var(--mono);letter-spacing:.8px;color:var(--deep)}
.pkg.featured .price span{color:var(--green)}
.price small{display:block;font-size:12px;color:var(--muted);margin-top:4px}
.pkg.featured .price small{color:#a9b8a6}
.pkg .text-link{margin-top:16px;align-self:flex-start}

/* spec table */
.spec{width:100%;border-collapse:collapse;font-size:15px}
.spec th{text-align:left;font:700 11px var(--mono);letter-spacing:1px;text-transform:uppercase;color:var(--muted);padding:12px 14px;border-bottom:1px solid var(--line2);width:42%}
.spec td{padding:12px 14px;border-bottom:1px solid var(--line)}
.spec tr:first-child th,.spec tr:first-child td{border-top:1px solid var(--line2)}
.spec td.spec-join{vertical-align:middle;text-align:center;white-space:nowrap;font-weight:700;color:var(--ink)}
.tbc{font:700 10px var(--mono);letter-spacing:.8px;color:#8a6a1e;background:#fbf1d9;border:1px solid #e6cf95;padding:2px 7px;border-radius:2px;margin-left:6px;white-space:nowrap}

/* configurations */
.config-tabs{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:4px;overflow:hidden}
.config-tabs button{border:0;border-right:1px solid var(--line);background:#fff;padding:18px 22px;text-align:left;font-size:19px}
.config-tabs button:last-child{border-right:0}
.config-tabs button span{display:block;font-size:12px;color:var(--muted);margin-top:6px}
.config-tabs button[aria-selected=true]{background:var(--dark);color:#fff}
.config-tabs button[aria-selected=true] span{color:#bdceb6}
.config-panel{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(24px,5vw,64px);padding:40px 0 0}
.badge[hidden]{display:none}
.badge{display:inline-block;font:700 10.5px var(--mono);letter-spacing:.8px;padding:5px 10px;border:1px solid #aeb8ab;border-radius:2px}
.section-head h1{margin:0}
.config-copy h2{font-size:30px;letter-spacing:-.03em;margin:20px 0 10px}
.config-price{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 14px;margin:0 0 18px}
.config-price b{font-size:clamp(36px,3.4vw,48px);font-weight:500;letter-spacing:-.03em;color:var(--ink)}
.config-price small{font-size:13px;color:var(--muted)}
.config-copy p{color:var(--muted)}
.config-specs{display:grid;grid-template-columns:160px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;margin:22px 0}
.config-specs dt{font-size:11px;color:var(--muted);margin-bottom:8px}
.config-specs dd{margin:0;font-size:30px;letter-spacing:-.03em}
.architecture{background:#e9ede7;padding:26px;border:1px solid #dce2d8;border-radius:4px}
.architecture-head{display:flex;justify-content:space-between;font:700 10px var(--mono);letter-spacing:.8px;margin-bottom:24px}
.host-node{background:var(--dark);color:#eef3ed;padding:18px;border-radius:3px}
.host-node strong{font-weight:500;font-size:14px}
.host-node small{display:block;font:11px var(--mono);color:#b0bdb2;margin-top:6px}
.network-line{height:56px;position:relative;display:flex;justify-content:center;align-items:center}
.network-line::before{content:"";position:absolute;left:50%;top:0;bottom:0;border-left:1px solid #abbba4}
.network-line span{position:relative;background:#e9ede7;padding:4px 10px;font:10.5px var(--mono);color:#586b51}
.rtc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.rtc-grid.single{grid-template-columns:1fr}
.rtc-grid.rack{grid-template-columns:repeat(4,1fr)}
.rtc-module{border:1px solid #acbda5;background:#f7faf4;padding:14px;border-radius:2px}
.rtc-module span{font:10.5px var(--mono);color:#4a6140}
.rtc-module strong{display:block;font-weight:500;font-size:14px;margin-top:10px}
.rtc-module small{display:block;font-size:11px;color:#667660;margin-top:4px}
.architecture-note{font:11px/1.6 var(--mono);color:#687561;margin:20px 0 0}

/* founder */
.founder{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(24px,6vw,90px);align-items:start}
.founder blockquote{margin:0 0 24px;font-size:clamp(20px,2vw,26px);line-height:1.45;letter-spacing:-.01em;border-left:2px solid var(--ind);padding-left:22px}

/* FAQ */
.faq details{border-top:1px solid var(--line2)}
.faq details:last-child{border-bottom:1px solid var(--line2)}
.faq summary{display:flex;justify-content:space-between;gap:20px;cursor:pointer;list-style:none;padding:20px 0;font-size:18px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;line-height:1;color:var(--deep);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--muted);max-width:820px;padding-bottom:12px;margin:0 0 12px}

/* contact */
.contact .wrap{display:grid;grid-template-columns:1.3fr 1fr;gap:clamp(24px,8vw,120px);align-items:center}
.contact h2{font-size:clamp(36px,4.4vw,64px)}
.contact-aside{border-left:1px solid #39463f;padding-left:44px}
.contact-aside .name{font-size:24px;margin:14px 0 6px}
.contact-aside a{font:13px var(--mono);color:#c8d9c0}

/* footer */
.site-footer{padding:36px 0}
.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px}
.site-footer img{width:150px}
.site-footer nav{display:flex;flex-wrap:wrap;gap:20px;font-size:12.5px}
.site-footer nav a{text-decoration:none;color:var(--muted)}
.site-footer nav a:hover{color:var(--ink)}
.site-footer p{font-size:11.5px;color:var(--muted);margin:0;width:100%}

/* formnext */
.event-card{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid #d3ddcb;background:#fff}
.event-card>div{padding:26px 28px}
.event-card>div+div{border-left:1px solid #d3ddcb}
.event-card b{display:block;font-size:24px;font-weight:500;letter-spacing:-.02em;margin:10px 0 6px}
.slot-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.slot{display:block;text-decoration:none;background:#fff;border:1px solid var(--line);border-radius:3px;padding:18px;transition:border-color .2s,background .2s}
.slot:hover{border-color:var(--ind);background:#f4f8f0}
.slot b{display:block;font-size:20px;font-weight:500}
.slot span{font:11px var(--mono);color:var(--muted)}
.qr-block{display:flex;gap:24px;align-items:center}
.qr-block img{width:120px;height:120px;background:#fff;padding:10px;border-radius:3px}

/* architecture layers */
.layers{display:grid;gap:10px}
.layer{display:grid;grid-template-columns:200px 1fr;gap:20px;align-items:center;border:1px solid var(--line);background:#fff;border-radius:3px;padding:16px 20px}
.layer.core{background:var(--dark);color:#fff;border-color:var(--dark)}
.layer.core .label{color:var(--green)}
.layer .chips{gap:6px}
.layer.core .chip{background:transparent;border-color:var(--dline);color:#d3dbdc}
.layer-arrow{text-align:center;font:12px var(--mono);color:var(--muted)}
.driver-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.driver-groups h4{font:700 11px var(--mono);letter-spacing:1px;text-transform:uppercase;color:var(--deep);border-bottom:2px solid var(--ind);padding-bottom:8px;margin-bottom:12px}

/* closed loop */
.partner-tag{display:inline-flex;align-items:center;gap:10px;font:700 11px var(--mono);letter-spacing:1px;text-transform:uppercase;border:1px solid #83be56;background:#eef6e6;color:var(--deep);padding:7px 11px;border-radius:2px}
.dark .partner-tag{background:transparent;color:var(--green)}
.loop-diagram{background:#fff;border:1px solid var(--line);border-radius:4px;padding:clamp(12px,3vw,32px)}
.loop-diagram svg{display:block;width:100%;height:auto}
.loops{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:22px}
.loop{background:#fff;border:1px solid var(--line);border-top:3px solid var(--ind);border-radius:3px;padding:24px}
.loop .timescale{display:block;font-size:30px;font-weight:500;letter-spacing:-.02em;margin:8px 0 4px}
.loop h3{margin:0 0 10px}
.loop p{font-size:14.5px;color:var(--muted)}
.steps.five{grid-template-columns:repeat(5,1fr)}
.status-note{display:flex;gap:16px;align-items:flex-start;border:1px solid #e3cf9a;background:#fbf6e7;border-radius:3px;padding:18px 20px;margin-top:28px;font-size:14.5px;color:#5b4d24}
.status-note b{color:#3f3415}
/* features */
.feature-jump{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.feature-jump a{font:700 11px var(--mono);letter-spacing:1px;text-transform:uppercase;text-decoration:none;border:1px solid var(--line2);background:#fff;border-radius:2px;padding:8px 12px}
.feature-jump a:hover{border-color:var(--ind)}
#feature-sections{scroll-margin-top:90px}
.feature-back{display:none}
.feature-enlarge{position:relative;text-decoration:none}
.feature-enlarge span{position:absolute;right:8px;bottom:8px;background:var(--dark);color:#fff;border:1px solid var(--line2);border-radius:2px;padding:4px 8px;font:600 12px var(--sans);letter-spacing:0}
.feature-preview{width:min(1120px,calc(100% - 24px));max-height:calc(100dvh - 24px);padding:16px;border:1px solid var(--line);border-radius:4px;background:var(--paper);color:var(--ink)}
.feature-preview::backdrop{background:rgba(18,27,32,.8)}
.feature-preview-header{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}
.feature-preview-header h2{margin:0;font-size:clamp(18px,3vw,26px)}
.feature-preview-header button{padding:8px 12px;background:var(--dark);color:#fff;border:0;border-radius:2px;cursor:pointer}
.feature-preview-scroll{overflow:auto;overscroll-behavior:contain;max-height:calc(100dvh - 130px);background:var(--dark)}
.feature-preview-scroll img{display:block;width:100%;height:auto}
.feature-preview-hint{display:none}
@media(max-width:900px){
  .feature-back{display:inline-flex;margin-top:20px}
  .feature-preview-hint{display:block;font-size:13px;margin:0 0 8px}
  .feature-preview-scroll img{min-width:960px;max-width:none}
}
.feature-list{border-bottom:1px solid var(--line2)}
.feature{display:grid;grid-template-columns:minmax(0,320px) 1fr;gap:clamp(20px,4vw,56px);align-items:center;padding:26px 0;border-top:1px solid var(--line2)}
.feature.no-media{grid-template-columns:1fr}
.feature h3{font-size:clamp(21px,2vw,26px);margin:8px 0 10px}
.feature p{margin:0;max-width:640px;color:var(--muted)}
.feature-media{aspect-ratio:16/10;border-radius:3px;overflow:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;border:1px dashed #b4c2ae;background:repeating-linear-gradient(135deg,#f1f4ef 0 12px,#e8ede5 12px 24px);font:700 11px var(--mono);letter-spacing:1px;color:#6b7b66}
.feature-media small{font-weight:400;letter-spacing:0;opacity:.8}
.feature-media img,.feature-media video{width:100%;height:100%;object-fit:cover}
.feature-media.has-video{border:0;background:var(--dark)}
.feature-media.driver-directory{aspect-ratio:auto;align-items:stretch;gap:12px;padding:18px 14px;border:1px solid #303a3e;background:#10181c;color:#e7ede8;letter-spacing:0}
.driver-directory-heading{display:flex;align-items:center;justify-content:space-between;padding-bottom:10px;border-bottom:1px solid #303a3e;font-size:14px}
.driver-directory-heading small{color:var(--green);font-size:10px}
.driver-directory ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px 8px;list-style:none;margin:0;padding:0;font-size:10px;line-height:1.5;font-weight:400}
.driver-directory li{white-space:nowrap}
.driver-directory li::before{content:"";display:inline-block;width:7px;height:6px;margin-right:5px;border-radius:1px;background:#91a78a}
.detail-list{display:grid;grid-template-columns:1fr 1fr;gap:0 clamp(24px,4vw,64px);border-bottom:1px solid var(--line2)}
.detail-list article{padding:18px 0;border-top:1px solid var(--line2)}
.detail-list h3{font-size:17px;margin:0 0 6px}
.detail-list p{margin:0;color:var(--muted);font-size:14.5px}
.dev-note{max-width:760px;color:var(--muted)}
.dev-note video{display:block;width:min(640px,100%);margin-top:22px;background:var(--dark);border-radius:3px}
.tip{position:relative;display:inline}
.tip button{border:0;background:none;padding:0 3px;margin:0;color:var(--green);font:inherit;font-weight:700;cursor:help;line-height:1}
.tip-text{position:absolute;z-index:30;bottom:calc(100% + 10px);left:-12px;width:min(280px,70vw);background:#fff;color:var(--ink);border:1px solid var(--line);border-top:3px solid var(--ind);border-radius:3px;padding:12px 14px;font-size:13px;line-height:1.5;box-shadow:0 14px 32px rgba(18,27,32,.22);visibility:hidden;opacity:0;transition:opacity .15s}
.tip:focus-within .tip-text{visibility:visible;opacity:1}
@media(hover:hover){.tip:hover .tip-text{visibility:visible;opacity:1}}
.callout{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px 40px;margin-top:40px;padding:26px 30px;background:var(--dark);color:#c3ceca;border-left:4px solid var(--green);border-radius:3px}
.callout p{margin:0;max-width:760px;font-size:16px;line-height:1.55}
.callout b{color:#fff;font-weight:500}
.callout .text-link{color:var(--green);white-space:nowrap}
.home-loop{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(24px,6vw,80px);align-items:center}

/* home: problem and pitch */
.pitch-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(28px,6vw,80px);align-items:stretch}
.pitch-grid h2{font-size:clamp(36px,4.2vw,60px);margin-top:14px}
.pitch{background:var(--dark);color:#fff;border-radius:4px;padding:clamp(28px,4vw,48px);display:flex;flex-direction:column;justify-content:space-between;gap:28px}
.pitch .label{color:var(--green)}
.pitch .big{font-size:clamp(28px,3vw,44px);line-height:1.12;letter-spacing:-.025em;margin:14px 0 0}
.pitch .big em{color:var(--green);font-style:normal;display:block;margin-top:.2em}
.more{position:relative;margin-top:26px}
.pitch .more{margin-top:0}
.more summary{display:inline-flex;align-items:center;gap:10px;cursor:pointer;list-style:none;font:700 12px var(--mono);letter-spacing:1px;text-transform:uppercase;color:var(--deep);border-bottom:1px solid currentColor;padding-bottom:4px}
.more summary::-webkit-details-marker{display:none}
.more summary::after{content:"+";font-size:15px;line-height:1}
.more[open] summary::after{content:"−"}
.pitch .more summary{color:var(--green)}
.more-pop{position:absolute;z-index:20;top:calc(100% + 12px);left:0;width:min(460px,calc(100vw - 2 * var(--gutter)));background:#fff;color:var(--ink);border:1px solid var(--line);border-top:3px solid var(--ind);border-radius:3px;padding:20px 22px;box-shadow:0 18px 40px rgba(18,27,32,.18)}
.more-pop p{margin:0;font-size:15px;color:var(--muted)}
.more-pop ul{display:grid;gap:10px;font-size:15px;color:var(--muted);list-style:none;margin:0;padding:0}
.more-pop li{padding-left:22px;position:relative}
.more-pop li::before{content:"";position:absolute;left:0;top:8px;width:9px;height:9px;background:var(--ind)}
.loop-band{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px 40px}
.loop-band h2{font-size:clamp(28px,3vw,40px);margin:10px 0 8px}
.loop-band p{color:var(--muted);max-width:620px}

/* responsive */
@media(max-width:1100px){
  .site-nav{gap:18px;font-size:13px}
  .device-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}
  .packages{grid-template-columns:repeat(2,1fr)}
  .grid4,.steps,.slot-grid{grid-template-columns:repeat(2,1fr)}
  .io-examples{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .nav-toggle{display:block}
  .site-nav{display:none;position:absolute;top:80px;left:0;right:0;flex-direction:column;gap:0;background:var(--paper);border-bottom:1px solid var(--line);padding:8px var(--gutter) 18px}
  .site-nav.open{display:flex}
  .site-nav a{padding:12px 0;border-bottom:1px solid var(--line)}
  .nav-cta{display:none}
  .hero .wrap,.page-hero .wrap,.section-head,.grid2,.grid3,.doors,.ai-compare,.device-panel,.config-panel,.founder,.contact .wrap,.event-card{grid-template-columns:1fr}
  .door+.door{border-left:0;border-top:1px solid #d3ddcb}
  .layer{grid-template-columns:1fr;gap:10px}
  .loops,.home-loop,.pitch-grid,.packages.three,.feature,.detail-list{grid-template-columns:1fr}
  .steps.five{grid-template-columns:1fr 1fr}
  .driver-groups{grid-template-columns:1fr 1fr}
  .event-card>div+div{border-left:0;border-top:1px solid #d3ddcb}
  .contact-aside{border-left:0;border-top:1px solid #39463f;padding:28px 0 0}
  .config-tabs{grid-template-columns:repeat(2,1fr)}
  .config-tabs button{border-bottom:1px solid var(--line)}
  .pkg li{position:relative}
  .tip{position:static}
  .tip-text{left:0;right:0;width:auto}
}
@media(max-width:600px){
  .packages,.grid4,.steps,.slot-grid,.io-examples{grid-template-columns:1fr}
  .device-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .event-banner .wrap{flex-direction:column;align-items:flex-start;gap:6px}
  .brand img{width:160px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}