:root{--ink:#0C1722;--steel:#4A5B6B;--fog:#E9EEF2;--cloud:#F5F7F9;--line:#D5DDE4;--crimson:#B4122F;--lt:#F2566B;--teal:#0E7C86;--mist:#B9C6D2;--w:1160px}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--cloud);color:var(--ink);font:400 17px/1.62 Archivo,system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}a{color:inherit}p{margin:0 0 1em}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 14px;border-radius:8px;z-index:99}.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--teal);outline-offset:3px}
h1,h2,h3,h4{margin:0}h1,h2{font-family:Archivo,system-ui,sans-serif;font-stretch:112%;font-weight:800;line-height:1.06;letter-spacing:-.012em}
h1{font-size:clamp(40px,6.4vw,76px)}h2{font-size:clamp(30px,4vw,48px)}
h3{font-size:21px;font-weight:700;line-height:1.25}h4{font:600 13px "IBM Plex Mono",monospace;letter-spacing:.08em;text-transform:uppercase;color:#fff;margin-bottom:14px}
.eyebrow,.mono{font:500 13px/1.4 "IBM Plex Mono",ui-monospace,monospace;letter-spacing:.06em;text-transform:uppercase}
.eyebrow{color:var(--steel);margin:0 0 18px}.eyebrow:before{content:"";display:inline-block;width:28px;height:2px;background:var(--crimson);vertical-align:middle;margin-right:12px}
.dark .eyebrow,.hero .eyebrow{color:var(--mist)}.dark .eyebrow:before,.hero .eyebrow:before{background:var(--lt)}
header.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:28px;height:68px}.brand img{height:34px;width:auto}
nav.main{margin-left:auto;display:flex;align-items:center;gap:26px}
nav.main a{text-decoration:none;font-weight:600;font-size:15px;color:var(--steel)}nav.main a:hover,nav.main a[aria-current]{color:var(--ink)}
.navtoggle{position:absolute;opacity:0;pointer-events:none}.burger{display:none}
.btn{display:inline-block;background:var(--ink);color:#fff;text-decoration:none;font-weight:700;font-size:15px;padding:13px 22px;border-radius:999px;border:2px solid var(--ink);transition:transform .15s,background .15s}
nav.main a.btn{color:#fff;padding:10px 18px}.btn:hover{background:#1c2f42;transform:translateY(-1px)}
.btn.ghost{background:transparent;color:inherit;border-color:currentColor}.btn.red{background:var(--crimson);border-color:var(--crimson)}
section{padding:88px 0}.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.dark{background:var(--ink);color:#fff}.sec-h{max-width:780px;margin-bottom:44px}.sec-h p{font-size:19px;color:var(--steel);margin-top:18px}.dark .sec-h p{color:#C7D3DE}
.hero{background:repeating-linear-gradient(to bottom,transparent 0 39px,#15273a 39px 40px),var(--ink);color:#fff;padding:84px 0 96px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}.hero h1 span{color:var(--lt)}
.lead{font-size:clamp(18px,2vw,22px);line-height:1.5;color:#D4DEE7;max-width:34em;margin-top:22px}
.cta{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px}.hero .btn{background:#fff;color:var(--ink);border-color:#fff}.hero .btn.ghost{background:transparent;color:#fff;border-color:#5b6e80}
.status{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:10px}
.status li{font:500 12.5px "IBM Plex Mono",monospace;letter-spacing:.04em;text-transform:uppercase;border:1px solid #2d4155;color:var(--mist);padding:7px 12px;border-radius:999px}
.doc{margin:0;background:#fff;color:var(--ink);border-radius:18px;padding:22px 24px 8px;box-shadow:0 30px 60px -20px rgba(0,0,0,.55)}
.doc figcaption{font:500 11.5px "IBM Plex Mono",monospace;letter-spacing:.06em;text-transform:uppercase;color:var(--steel);margin-bottom:14px}
.doc-h{display:flex;align-items:baseline;gap:12px;border-bottom:2px solid var(--ink);padding-bottom:12px;font:500 15px "IBM Plex Mono",monospace}.doc-h b{font-size:20px}
.doc-h em{margin-left:auto;font-style:normal;background:var(--teal);color:#fff;padding:3px 10px;border-radius:6px;font-size:12px;letter-spacing:.06em;text-transform:uppercase}
.steps{list-style:none;margin:0;padding:0}.steps li{position:relative;padding:14px 0 14px 40px;border-bottom:1px solid var(--line);font-weight:700}.steps li:last-child{border:0}
.steps small{display:block;font-weight:400;color:var(--steel);font-size:14px;line-height:1.4}
.steps li:before{content:"";position:absolute;left:0;top:17px;width:22px;height:22px;border-radius:50%;background:var(--teal)}
.steps li:after{content:"";position:absolute;left:6px;top:23px;width:9px;height:4px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}
.steps li.now:before{background:var(--crimson);box-shadow:0 0 0 5px rgba(180,18,47,.16)}
.grid{display:grid;gap:20px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px}.alt .card{background:var(--cloud)}.card h3{margin-bottom:8px}.card p:last-child{margin:0}.card p{color:var(--steel)}
.dark .card{background:#12202e;border-color:#2a3d50}.dark .card p{color:#C7D3DE}
.num{font:600 13px "IBM Plex Mono",monospace;color:var(--crimson);letter-spacing:.08em;display:block;margin-bottom:10px}
.stat b{display:block;font:800 clamp(40px,5vw,60px)/1 Archivo,sans-serif;font-stretch:112%;color:var(--crimson);margin-bottom:12px}.stat span{display:block;color:var(--ink)}.src{font-size:13px;color:var(--steel);margin-top:12px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 0;padding:0;list-style:none}.chips li{font:500 13px "IBM Plex Mono",monospace;background:var(--fog);border-radius:8px;padding:6px 10px;color:var(--ink)}
.dark .chips li{background:#1b2d3f;color:#E6EDF3}
.never{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid #2a3d50}.never div{padding:26px 22px 8px;border-left:1px solid #2a3d50;font-weight:700}.never div:first-child{border-left:0;padding-left:0}
.never small{display:block;margin-top:8px;font-weight:400;color:var(--mist);font-size:14.5px;line-height:1.5}
.scroll{overflow-x:auto}table.t{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);min-width:640px}
.t th,.t td{text-align:left;padding:15px 18px;border-bottom:1px solid var(--line);vertical-align:top}.t th{font:500 12.5px "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.06em;background:var(--fog)}.t tr:last-child td{border:0}.t td:first-child{font-weight:700;white-space:nowrap}
.tag{font:500 12px "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.05em;padding:3px 8px;border-radius:6px;white-space:nowrap;display:inline-block}.tag.ok{background:#DDF1EC;color:#075E55}.tag.wip{background:#FBEFD5;color:#7A4A00}.tag.plan{background:var(--fog);color:var(--steel)}
.page-h{background:var(--ink);color:#fff;padding:72px 0 64px;background-image:repeating-linear-gradient(to bottom,transparent 0 39px,#15273a 39px 40px)}.page-h p{font-size:20px;color:#D4DEE7;max-width:38em;margin:20px 0 0}
.prose{max-width:760px}.prose h2{font-size:clamp(26px,3vw,36px);margin:56px 0 16px}.prose h2:first-child{margin-top:0}.prose ol,.prose ul{padding-left:1.2em}.prose li{margin-bottom:.6em}.prose .callout{background:#fff;border:1px solid var(--line);border-left:4px solid var(--crimson);border-radius:12px;padding:18px 22px;margin:24px 0}
.fam h3{margin-bottom:6px}.fam .card{height:100%}.mod{padding:14px 0;border-top:1px solid var(--line)}.mod b{display:block}.mod span{color:var(--steel);font-size:15.5px}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:12px}summary{font-weight:700;cursor:pointer}details p{margin:12px 0 0;color:var(--steel)}
.band{padding:72px 0}.band h2{max-width:16em}.band .btn{background:#fff;color:var(--ink);border-color:#fff;margin-top:26px}
footer{background:var(--ink);color:#C7D3DE;padding:56px 0 28px;font-size:15px}.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
footer a{display:block;text-decoration:none;margin-bottom:8px}footer a:hover{color:#fff;text-decoration:underline}.fsmall{font-size:14px;color:var(--mist);margin-top:14px;max-width:30em}
.legal{margin-top:40px;padding-top:20px;border-top:1px solid #2a3d50;font-size:13.5px;color:var(--mist)}
@media(max-width:1000px){.g3,.g4{grid-template-columns:repeat(2,1fr)}.never{grid-template-columns:repeat(2,1fr)}.never div:nth-child(odd){border-left:0;padding-left:0}}
@media(max-width:860px){.hero-grid,.g2,.fgrid{grid-template-columns:1fr}.hero{padding:56px 0 64px}section{padding:64px 0}
.burger{display:block;margin-left:auto;width:44px;height:44px;cursor:pointer;position:relative}.burger span,.burger span:before,.burger span:after{position:absolute;left:10px;width:24px;height:2px;background:var(--ink);content:""}.burger span{top:21px}.burger span:before{left:0;top:-7px}.burger span:after{left:0;top:7px}
.navtoggle:focus-visible+.burger{outline:3px solid var(--teal)}nav.main{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:flex-start;background:#fff;padding:18px 24px 24px;border-bottom:1px solid var(--line);gap:18px}.navtoggle:checked~nav.main{display:flex}}
@media(max-width:600px){.g3,.g4,.never{grid-template-columns:1fr}.never div{border-left:0;padding-left:0;border-top:1px solid #2a3d50}.never div:first-child{border-top:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* v2: dark header, dot field, AI-native home */
header.top{background:var(--ink);border-bottom:1px solid #1B2D40;backdrop-filter:none}
nav.main a{color:var(--mist)}nav.main a:hover,nav.main a[aria-current]{color:#fff}
nav.main a.btn{background:var(--lt);border-color:var(--lt);color:var(--ink)}nav.main a.btn:hover{background:#ff6c80}
.burger span,.burger span:before,.burger span:after{background:#fff!important}
@media(max-width:860px){nav.main{background:var(--ink)!important;border-color:#1B2D40!important}}
.hero,.page-h,.band{background-color:var(--ink);background-image:radial-gradient(circle,#1B2D40 0 1.5px,transparent 2px);background-size:22px 22px}
.hero .btn{background:var(--lt);border-color:var(--lt);color:var(--ink)}.band .btn{background:var(--lt);border-color:var(--lt);color:var(--ink)}
.hero-mark{display:flex;flex-direction:column;align-items:center}.hero-mark img{width:100%;max-width:330px;height:auto}
.answer{width:100%;max-width:440px;margin-top:-56px;background:#fff;color:var(--ink);border-radius:18px;padding:22px 24px;box-shadow:0 24px 60px rgba(0,0,0,.35);position:relative}
.answer p{margin:10px 0 12px;font-size:16px}.arow{display:flex;justify-content:space-between;align-items:center;gap:12px}
.stamp{font:500 12px "IBM Plex Mono",monospace;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:6px;display:inline-block}
.stamp.ok{background:var(--teal);color:#fff}.stamp.wait{background:#FBEFD5;color:#7A4A00}.stamp.id{border:1px solid var(--ink)}.stamp.plain{color:var(--steel);padding-left:0}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}.pillars p{color:var(--steel);font-size:16px;margin:8px 0 0}.pillars b{font-size:21px;display:block;margin-top:8px}
.split{display:flex;flex-wrap:wrap;gap:56px;align-items:flex-start}.split>*{flex:1 1 420px;min-width:0}.split.center{align-items:center}
.demo{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px}
.qs{display:flex;flex-wrap:wrap;gap:10px;padding-bottom:20px;border-bottom:1px solid #E1E7EC}
.qs button{background:#fff;color:var(--ink);border:1px solid #C9D3DC;border-radius:999px;padding:10px 16px;min-height:44px;font:500 15px Archivo,sans-serif;cursor:pointer;text-align:left}
.qs button[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}
.bubble{margin:20px 0 14px auto;max-width:85%;width:fit-content;background:var(--fog);border-radius:16px 16px 4px 16px;padding:12px 16px;font-size:16px}
.reply{display:flex;gap:14px}.reply img{width:26px;height:auto;flex:none;margin-top:4px}.reply p{margin:0 0 12px}.meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.panel{background:var(--cloud);border:1px solid var(--line);border-radius:24px;padding:32px}
.wells{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;text-align:center;margin:20px 0}
.wells div{display:flex;flex-direction:column;align-items:center;gap:8px}.wells i{display:block;width:100%;max-width:72px;aspect-ratio:1;border-radius:50%;border:2px solid #C9D3DC;background:#F2B8C1}
.wells i.pos{background-color:#FBE3E7;background-image:radial-gradient(circle,var(--crimson) 0 3.5px,transparent 4px);background-size:13px 13px}
.wells span{font:500 11px "IBM Plex Mono",monospace;letter-spacing:.04em;text-transform:uppercase}
.panel-f{border-top:1px solid var(--line);padding-top:16px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center}
.console{background:#08111A;border:1px solid #1B2D40;border-radius:20px;padding:24px;font:400 14px/1.5 "IBM Plex Mono",monospace}
.console .ch{display:flex;justify-content:space-between;color:#7F93A6;font-size:12px;letter-spacing:.06em;text-transform:uppercase;padding-bottom:12px;border-bottom:1px solid #1B2D40}
.console div.l{display:flex;gap:14px;margin-top:12px;color:#E6EDF3}.console .t{color:#7F93A6;flex:none}.console .w{color:#F2C14E}.console .g{color:#5CC8D1}
.cmp td:first-child{font-weight:700}.cmp td:nth-child(2){color:var(--steel)}.cmp th:last-child{color:var(--crimson)}
.mcards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.mcards .card{display:flex;flex-direction:column;gap:10px}.mcards .k{color:var(--teal)}
.req{margin-top:auto;padding-top:12px;border-top:1px solid #E1E7EC;font:500 11px/1.5 "IBM Plex Mono",monospace;letter-spacing:.04em;text-transform:uppercase;color:var(--steel)}
.note{font:500 11.5px "IBM Plex Mono",monospace;letter-spacing:.04em;text-transform:uppercase;color:var(--steel);margin-top:16px}
.srow{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:18px 0;border-top:1px solid var(--line)}.srow:last-child{border-bottom:1px solid var(--line)}.srow b{font-size:18px}
@media(max-width:1000px){.mcards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.pillars,.mcards{grid-template-columns:1fr}.wells{gap:8px}}