/* GBIM website. Layout: toolbox catalogue — ink header band with the signal underline (as in every GBIM window),
   a gridded hero (the logo's modular cells as the paper grid), then cards. Tokens below; dark theme mirrors them. */
:root{
  --ink:#0F1E33; --ink2:#1B2C45; --signal:#E8590C; --signal-dk:#C2410C; --paper:#F5F7F9;
  --bg:#F3F5F8; --surface:#FFFFFF; --surface2:#EEF1F5; --border:#E2E7EE; --fg:#0F1E33; --muted:#5B6878; --grid:rgba(15,30,51,.055);
  --ok:#375623; --ok-bg:#E2EFDA; --link:#C2410C;
  --sans:"IBM Plex Sans",-apple-system,"Segoe UI",Roboto,Arial,sans-serif; --mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --r:12px; --shadow:0 1px 2px rgba(15,30,51,.06),0 8px 24px rgba(15,30,51,.06);
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0B1524; --surface:#122036; --surface2:#182A44; --border:#24385A; --fg:#E7ECF3; --muted:#9AA8BB; --grid:rgba(231,236,243,.05);
  --ok:#A6D9A0; --ok-bg:#1E3A24; --link:#F08A4B; --shadow:none; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0B1524; --surface:#122036; --surface2:#182A44; --border:#24385A; --fg:#E7ECF3; --muted:#9AA8BB; --grid:rgba(231,236,243,.05);
  --ok:#A6D9A0; --ok-bg:#1E3A24; --link:#F08A4B; --shadow:none; color-scheme:dark}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 var(--sans)}
img{max-width:100%;height:auto;display:block}
a{color:var(--link)}
.wrap{max-width:1160px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
/* header */
.top{background:#0F1E33;color:#F5F7F9;border-bottom:3px solid #E8590C;position:sticky;top:0;z-index:20}
.top .wrap{display:flex;align-items:center;gap:22px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:700;font-size:20px;letter-spacing:.02em}
.brand svg{width:28px;height:28px}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center;flex-wrap:wrap}
.nav a{color:#C9D3E0;text-decoration:none;font-size:15px;padding:8px 12px;border-radius:8px}
.nav a:hover,.nav a[aria-current="page"]{color:#fff;background:rgba(255,255,255,.08)}
.btn{display:inline-flex;align-items:center;gap:8px;font:600 15px var(--sans);padding:11px 18px;border-radius:9px;text-decoration:none;border:1px solid transparent;cursor:pointer;white-space:nowrap}
.btn.primary{background:#C2410C;color:#fff}
.btn.primary:hover{background:#A9380A}
.btn.ghost{background:var(--surface);color:var(--fg);border-color:var(--border)}
.btn.ghost:hover{border-color:var(--muted)}
.nav .btn{margin-left:8px;padding:9px 14px}
.menu{display:none;margin-left:auto;background:none;border:1px solid #3A4C66;color:#fff;border-radius:8px;padding:7px 10px;font:600 14px var(--sans)}
@media (max-width:860px){.menu{display:block}.nav{display:none;width:100%;padding-bottom:12px}.top .wrap{flex-wrap:wrap}.nav.open{display:flex}}
:focus-visible{outline:2px solid #E8590C;outline-offset:2px}
/* hero */
.hero{background-color:var(--surface);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:28px 28px;border-bottom:1px solid var(--border)}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;padding-block:64px 56px}
.spec{font:500 12.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--signal-dk)}
:root[data-theme="dark"] .spec{color:#F08A4B}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .spec{color:#F08A4B}}
h1{font-size:clamp(34px,4.6vw,52px);line-height:1.08;letter-spacing:-.015em;margin:12px 0 18px;text-wrap:balance}
h2{font-size:clamp(26px,3vw,34px);line-height:1.15;letter-spacing:-.01em;margin:0 0 10px;text-wrap:balance}
h3{font-size:19px;margin:0 0 6px}
.lead{font-size:18.5px;color:var(--muted);max-width:56ch;margin:0}
.ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.fine{font-size:13.5px;color:var(--muted);margin-top:14px}
.shot{border-radius:10px;border:1px solid var(--border);box-shadow:0 18px 50px rgba(15,30,51,.18);background:#fff}
.hero .shot{transform:rotate(-.4deg)}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;padding-block:40px}}
/* sections */
section.band{padding-block:72px}
section.alt{background:var(--surface);border-block:1px solid var(--border)}
.head{display:flex;justify-content:space-between;align-items:end;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.head p{margin:0;color:var(--muted);max-width:60ch}
.grid{display:grid;gap:16px}
.tools{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.tile{display:flex;flex-direction:column;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:20px;text-decoration:none;color:var(--fg);min-width:0;transition:border-color .15s,transform .15s}
.tile:hover{border-color:var(--signal);transform:translateY(-2px)}
.tile .host{font:500 12px var(--mono);color:var(--muted);letter-spacing:.04em}
.tile p{margin:0;color:var(--muted);font-size:15px}
.tile .go{margin-top:auto;font-weight:600;color:var(--link);font-size:14.5px}
.ic{width:40px;height:40px;border-radius:9px;background:#0F1E33;display:grid;place-items:center}
.ic svg{width:22px;height:22px}
.facts{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.fact{border-left:3px solid var(--signal);padding:4px 0 4px 16px}
.fact b{display:block;font:600 28px var(--sans);letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.fact span{color:var(--muted);font-size:14.5px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split.rev>:first-child{order:2}
@media (max-width:900px){.split{grid-template-columns:1fr}.split.rev>:first-child{order:0}}
ul.ticks{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:9px}
ul.ticks li{padding-left:28px;position:relative}
ul.ticks li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:10px;border-left:2.5px solid var(--signal);border-bottom:2.5px solid var(--signal);transform:rotate(-45deg)}
/* pricing */
.plans{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));align-items:stretch}
.plan{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:28px;display:flex;flex-direction:column;gap:12px}
.plan.feature{border:2px solid var(--signal);box-shadow:var(--shadow)}
.price{font:700 44px var(--sans);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.price small{font:500 15px var(--sans);color:var(--muted);letter-spacing:0}
.plan .btn{justify-content:center;margin-top:auto}
.tag{display:inline-block;font:600 12px var(--sans);text-transform:uppercase;letter-spacing:.06em;padding:3px 10px;border-radius:999px;background:var(--ok-bg);color:var(--ok);width:max-content}
/* tables, faq, docs */
.tablebox{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r);background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--border);vertical-align:top}
th{font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:var(--surface2)}
tr:last-child td{border-bottom:none}
details{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:16px 20px}
details+details{margin-top:10px}
summary{cursor:pointer;font-weight:600}
details p{color:var(--muted);margin:10px 0 0}
.prose{max-width:76ch}
.prose h2{margin-top:44px}
.prose h3{margin-top:28px}
.prose p,.prose li{color:var(--fg)}
.prose code,code{font:14px var(--mono);background:var(--surface2);padding:1px 6px;border-radius:5px}
.callout{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--signal);border-radius:8px;padding:14px 18px}
.crumbs{font:500 13px var(--mono);color:var(--muted);margin-bottom:10px}
.crumbs a{color:var(--muted)}
.pagehead{padding-block:48px 36px;background:var(--surface);border-bottom:1px solid var(--border)}
.pagehead h1{margin:6px 0 10px}
.sev{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.sev div{border:1px solid var(--border);border-radius:10px;padding:14px;background:var(--surface)}
.sev b{display:block;font-size:26px}
.sev span{font:600 12px var(--sans);text-transform:uppercase;letter-spacing:.05em}
@media (max-width:560px){.sev{grid-template-columns:repeat(2,1fr)}}
/* footer */
footer{background:#0F1E33;color:#B9C4D3;margin-top:0}
footer .wrap{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:28px;padding-block:48px 36px}
footer a{color:#DCE3EC;text-decoration:none}
footer a:hover{text-decoration:underline}
footer h4{color:#fff;margin:0 0 10px;font-size:14px;letter-spacing:.04em}
footer ul{list-style:none;padding:0;margin:0;display:grid;gap:6px;font-size:14.5px}
footer .legal{border-top:1px solid #24385A;padding-block:16px;font-size:13px}
@media (max-width:760px){footer .wrap{grid-template-columns:1fr 1fr}}
@media (prefers-reduced-motion:reduce){.tile{transition:none}.tile:hover{transform:none}}

/* ---------- user guide (8-Nov-2026) ---------- */
.guide{display:grid;grid-template-columns:240px minmax(0,1fr);gap:48px;align-items:start}
.toc{position:sticky;top:84px;font-size:14px;border-left:2px solid var(--border);padding-left:16px}
.toc b{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.toc a{display:block;color:var(--fg);text-decoration:none;padding:4px 0;line-height:1.35}
.toc a:hover,.toc a[aria-current="page"]{color:var(--link)}
.toc .sub a{padding-left:12px;color:var(--muted);font-size:13px}
.doc{max-width:860px}
.doc h2{margin:56px 0 12px;scroll-margin-top:84px}
.doc h3{margin:32px 0 8px;scroll-margin-top:84px}
.doc p,.doc li{color:var(--fg)}
.doc figure{margin:20px 0 28px}
.doc figure img,.doc figure video{display:block;max-width:100%;height:auto;border:1px solid var(--border);border-radius:var(--r);box-shadow:var(--shadow);background:var(--surface)}
.doc figure.narrow img{max-width:460px}
.doc figure.mid img{max-width:720px}
.doc figcaption{font-size:14px;color:var(--muted);margin-top:8px}
.doc video{width:100%;aspect-ratio:16/9}
ol.steps{counter-reset:s;list-style:none;padding:0;margin:16px 0}
ol.steps>li{counter-increment:s;position:relative;padding:0 0 18px 52px}
ol.steps>li::before{content:counter(s);position:absolute;left:0;top:0;width:34px;height:34px;border-radius:9px;background:var(--signal);color:#fff;font-weight:600;display:grid;place-items:center;font-size:15px}
ol.steps>li>b:first-child{display:block}
.kbd{font-family:var(--mono);font-size:13px;background:var(--surface2);border:1px solid var(--border);border-radius:6px;padding:1px 6px;white-space:nowrap}
.path{font-family:var(--mono);font-size:13.5px;word-break:break-all}
.ribbon{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0 4px}
.ribbon span{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:8px 12px;font-size:14px;line-height:1.3}
.ribbon span small{display:block;color:var(--muted);font-size:12px}
.ribbon span.last{border-color:var(--signal)}
.loop{width:100%;height:auto;margin:8px 0 4px}
.cards2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:16px 0}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:18px 20px}
.card h3{margin:0 0 6px;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:15px}
.card a{text-decoration:none}
.note{border-left:4px solid var(--signal);background:var(--surface);padding:12px 16px;border-radius:0 var(--r) var(--r) 0;margin:16px 0}
.pager{display:flex;justify-content:space-between;gap:16px;margin:56px 0 0;padding-top:20px;border-top:1px solid var(--border)}
.pager a{text-decoration:none;color:var(--link);font-weight:500}
.doc table{font-size:14.5px}
@media (max-width:900px){.guide{grid-template-columns:1fr}.toc{position:static;border-left:0;padding:0}.cards2{grid-template-columns:1fr}}