:root{
  --bg:#F2F5FA; --surface:#FFFFFF; --surface-2:#E6EBF4;
  --ink:#0C1424; --ink-2:#48546E; --ink-3:#77839C;
  --rule:#D4DAE8; --rule-strong:#B4BED3;
  --accent:#2445D6; --accent-ink:#1B34A8; --accent-wash:#DEE4FC;
  --signal:#0C7A85; --signal-wash:#D3EBEE;
  --warn:#8A5A05; --warn-wash:#F4E6C9;
  --shadow:0 1px 2px rgba(12,20,36,.07), 0 14px 34px -20px rgba(12,20,36,.5);
  --spine:160px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#080D18; --surface:#0F1626; --surface-2:#161F32;
    --ink:#E4E9F4; --ink-2:#97A3BD; --ink-3:#6B7893;
    --rule:#1E2739; --rule-strong:#2F3A50;
    --accent:#7A95FF; --accent-ink:#9BAFFF; --accent-wash:#131E40;
    --signal:#3CC0CB; --signal-wash:#0A2226;
    --warn:#D9A441; --warn-wash:#241B0B;
    --shadow:0 1px 2px rgba(0,0,0,.5), 0 20px 44px -24px rgba(0,0,0,.95);
  }
}
:root[data-theme="dark"]{
  --bg:#080D18; --surface:#0F1626; --surface-2:#161F32;
  --ink:#E4E9F4; --ink-2:#97A3BD; --ink-3:#6B7893;
  --rule:#1E2739; --rule-strong:#2F3A50;
  --accent:#7A95FF; --accent-ink:#9BAFFF; --accent-wash:#131E40;
  --signal:#3CC0CB; --signal-wash:#0A2226;
  --warn:#D9A441; --warn-wash:#241B0B;
  --shadow:0 1px 2px rgba(0,0,0,.5), 0 20px 44px -24px rgba(0,0,0,.95);
}

*{box-sizing:border-box}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Newsreader","Iowan Old Style",Georgia,serif;
  font-size:17px; line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:"Archivo","Helvetica Neue",Arial,sans-serif;font-weight:700;text-wrap:balance;margin:0;line-height:1.08;letter-spacing:-.025em}
p{margin:0}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

.mono{font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace}
.label{
  font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  font-size:.7rem; text-transform:uppercase; letter-spacing:.14em;
  color:var(--ink-3);
}
.num{font-variant-numeric:tabular-nums}

/* ---------- shell ---------- */
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

.topbar{
  position:sticky; top:0; z-index:40;
  background:color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--rule);
}
.topbar-in{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:"Archivo",sans-serif;font-weight:700;letter-spacing:-.02em;font-size:1.02rem}
.brand svg{display:block}
.nav{display:none;gap:26px;margin-left:auto}
.nav a{
  text-decoration:none;font-family:"IBM Plex Mono",monospace;font-size:.76rem;
  text-transform:uppercase;letter-spacing:.1em;color:var(--ink-2);padding:6px 0;
  border-bottom:1px solid transparent;
}
.nav a:hover{color:var(--ink);border-bottom-color:var(--accent)}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
@media(min-width:900px){.nav{display:flex}.top-actions{margin-left:0}}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:"Archivo",sans-serif;font-weight:600;font-size:.9rem;letter-spacing:-.01em;
  padding:11px 18px;border-radius:2px;text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:transform .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary{background:var(--accent);color:#F4F7FF;border-color:var(--accent)}
:root[data-theme="dark"] .btn-primary{color:#070C18}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]) .btn-primary{color:#070C18}}
.btn-primary:hover{transform:translateY(-1px)}
.btn-ghost{border-color:var(--rule-strong);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--ink-2);background:var(--surface)}
.btn-sm{padding:8px 14px;font-size:.82rem}

.theme-toggle{
  width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--rule);
  background:var(--surface);color:var(--ink-2);border-radius:2px;cursor:pointer;
}
.theme-toggle:hover{color:var(--ink);border-color:var(--rule-strong)}

/* ---------- section frame (drafting sheet) ---------- */
.band{border-bottom:1px solid var(--rule)}
.sheet{display:grid;grid-template-columns:1fr;gap:20px;padding:64px 0}
.gutter{display:flex;align-items:baseline;gap:12px}
.gutter .idx{color:var(--accent);font-weight:500}
@media(min-width:1000px){
  .sheet{grid-template-columns:var(--spine) 1fr;gap:0;padding:88px 0}
  .gutter{
    display:block;position:sticky;top:96px;align-self:start;
    border-left:2px solid var(--accent);padding-left:14px;
  }
  .gutter .idx{display:block;margin-bottom:6px}
  .col{border-left:1px solid var(--rule);padding-left:48px;margin-left:-1px}
}

.lede{font-size:1.18rem;color:var(--ink-2);max-width:62ch}
.h2{font-size:clamp(1.75rem,3.2vw,2.5rem);max-width:20ch}
.stack-24{display:flex;flex-direction:column;gap:24px}
.stack-16{display:flex;flex-direction:column;gap:16px}

/* ---------- hero ---------- */
.hero{padding:56px 0 12px}
.hero-grid{display:flex;flex-direction:column;gap:44px}
h1.hero-h{font-size:clamp(2.5rem,6.2vw,4.5rem);letter-spacing:-.035em;max-width:15ch}
h1.hero-h em{font-style:normal;color:var(--accent)}
.hero-sub{font-size:1.22rem;color:var(--ink-2);max-width:56ch;margin-top:24px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.facts{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:1px;background:var(--rule);border:1px solid var(--rule);margin-top:48px;
}
.fact{background:var(--bg);padding:18px 20px}
.fact b{display:block;font-family:"Archivo",sans-serif;font-size:1.9rem;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.fact span{display:block;margin-top:4px}

/* ---------- schematic ---------- */
.schematic-shell{border:1px solid var(--rule);background:var(--surface);box-shadow:var(--shadow)}
.schematic-head{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:12px 16px;border-bottom:1px solid var(--rule);flex-wrap:wrap}
.schematic-scroll{overflow-x:auto;padding:8px}
.schematic-scroll svg{display:block;min-width:660px;width:100%;height:auto}
.wire{fill:none;stroke:var(--rule-strong);stroke-width:1.5}
.wire-live{stroke:var(--accent);stroke-dasharray:5 9;opacity:.9;animation:flow 2.6s linear infinite}
@keyframes flow{to{stroke-dashoffset:-56}}
.node{fill:var(--surface-2);stroke:var(--rule-strong);stroke-width:1}
.node-core{fill:var(--surface);stroke:var(--ink);stroke-width:1.5}
.node-t{font-family:"Archivo",sans-serif;font-size:13.5px;font-weight:600;fill:var(--ink)}
.node-s{font-family:"IBM Plex Mono",monospace;font-size:9.5px;fill:var(--ink-3);letter-spacing:.06em}
.band-t{font-family:"IBM Plex Mono",monospace;font-size:9.5px;fill:var(--ink-3);letter-spacing:.14em;text-transform:uppercase}
.pip{fill:var(--accent)}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule)}
.card{background:var(--surface);padding:28px 26px 30px;display:flex;flex-direction:column;gap:14px}
.card h3{font-size:1.28rem}
.card p{color:var(--ink-2);font-size:1.02rem}
.card ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px;font-size:.95rem;color:var(--ink-2)}
.card li{display:flex;gap:10px;align-items:flex-start}
.card li::before{content:"";flex:none;width:7px;height:7px;margin-top:.55em;background:var(--accent);opacity:.75}
.card .label{margin-bottom:-4px}

/* ---------- product mock ---------- */
.mock-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.tab{
  font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.09em;text-transform:uppercase;
  padding:9px 14px;border:1px solid var(--rule-strong);background:transparent;color:var(--ink-2);cursor:pointer;border-radius:2px;
}
.tab[aria-selected="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.app{border:1px solid var(--rule-strong);background:var(--surface);box-shadow:var(--shadow);overflow:hidden}
.app-bar{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--rule);background:var(--surface-2)}
.lights{display:flex;gap:6px}
.lights i{width:9px;height:9px;border-radius:50%;background:var(--rule-strong);display:block}
.url{flex:1;text-align:center;font-family:"IBM Plex Mono",monospace;font-size:.72rem;color:var(--ink-3)}
.who{display:flex;align-items:center;gap:7px;font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--ink-2)}
.avatar{width:20px;height:20px;border-radius:50%;background:var(--accent-wash);color:var(--accent-ink);display:grid;place-items:center;font-size:.6rem;font-weight:500}
.app-body{display:grid;grid-template-columns:1fr}
@media(min-width:820px){.app-body{grid-template-columns:186px 1fr}}
.side{border-right:1px solid var(--rule);padding:18px 14px;display:none;flex-direction:column;gap:4px;background:var(--surface)}
@media(min-width:820px){.side{display:flex}}
.side a{
  font-family:"IBM Plex Mono",monospace;font-size:.76rem;color:var(--ink-2);
  text-decoration:none;padding:8px 10px;border-radius:2px;display:flex;justify-content:space-between;gap:8px;
}
.side a.on{background:var(--accent-wash);color:var(--accent-ink)}
.side a .n{color:var(--ink-3);font-size:.7rem}
.pane{padding:22px 24px 26px;display:flex;flex-direction:column;gap:20px;min-width:0}
.pane-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.pane-head h4{font-size:1.15rem}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.tile{border:1px solid var(--rule);padding:14px 16px;background:var(--bg);display:flex;flex-direction:column;gap:6px}
.tile b{font-family:"Archivo",sans-serif;font-size:1.5rem;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.tile .delta{font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:var(--signal)}
.tile .delta.down{color:var(--warn)}
.table-scroll{overflow-x:auto;border:1px solid var(--rule)}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.9rem}
th{
  font-family:"IBM Plex Mono",monospace;font-size:.66rem;text-transform:uppercase;letter-spacing:.12em;
  color:var(--ink-3);text-align:left;padding:10px 14px;border-bottom:1px solid var(--rule);background:var(--surface-2);font-weight:500;
}
td{padding:11px 14px;border-bottom:1px solid var(--rule);color:var(--ink-2);font-variant-numeric:tabular-nums}
tr:last-child td{border-bottom:0}
td.strong{color:var(--ink);font-family:"IBM Plex Mono",monospace;font-size:.82rem}
.pill{
  display:inline-flex;align-items:center;gap:6px;font-family:"IBM Plex Mono",monospace;font-size:.66rem;
  letter-spacing:.06em;text-transform:uppercase;padding:3px 9px;border-radius:100px;
}
.pill.ok{background:var(--signal-wash);color:var(--signal)}
.pill.wait{background:var(--warn-wash);color:var(--warn)}
.pill.new{background:var(--accent-wash);color:var(--accent-ink)}
.pill::before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor}
.cap{font-size:.92rem;color:var(--ink-3);margin-top:14px;max-width:60ch}

/* kanban */
.board{display:grid;grid-template-columns:repeat(4,minmax(190px,1fr));gap:12px;min-width:820px}
.board-scroll{overflow-x:auto;padding-bottom:4px}
.colm{background:var(--bg);border:1px solid var(--rule);display:flex;flex-direction:column}
.colm-h{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-bottom:1px solid var(--rule)}
.colm-h .label{color:var(--ink-2)}
.colm-h .n{font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--ink-3)}
.deal{padding:12px;border-bottom:1px solid var(--rule);display:flex;flex-direction:column;gap:7px}
.deal:last-child{border-bottom:0}
.deal b{font-family:"Archivo",sans-serif;font-size:.92rem;font-weight:600;letter-spacing:-.01em}
.deal .row{display:flex;justify-content:space-between;align-items:center;gap:8px;font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:var(--ink-3)}
.deal .amt{color:var(--ink);font-variant-numeric:tabular-nums}
.bar{height:3px;background:var(--rule);position:relative;overflow:hidden}
.bar i{position:absolute;inset:0 auto 0 0;background:var(--accent);display:block}

/* ---------- process ---------- */
.steps{display:flex;flex-direction:column}
.step{display:grid;grid-template-columns:1fr;gap:8px;padding:26px 0;border-top:1px solid var(--rule)}
.step:first-child{border-top:0;padding-top:0}
@media(min-width:760px){.step{grid-template-columns:76px 1fr 200px;gap:28px;align-items:start}}
.step .no{font-family:"IBM Plex Mono",monospace;font-size:.86rem;color:var(--accent);letter-spacing:.06em}
.step h3{font-size:1.22rem;margin-bottom:8px}
.step p{color:var(--ink-2);max-width:58ch}
.step .out{border-left:1px solid var(--rule);padding-left:16px;font-size:.9rem;color:var(--ink-3)}
.step .out b{display:block;font-family:"IBM Plex Mono",monospace;font-size:.66rem;text-transform:uppercase;letter-spacing:.12em;color:var(--ink-3);margin-bottom:6px;font-weight:500}

/* ---------- pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule)}
.plan{background:var(--surface);padding:28px 26px;display:flex;flex-direction:column;gap:16px}
.plan.hi{background:var(--surface-2)}
.plan .price{font-family:"Archivo",sans-serif;font-size:1.7rem;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.plan .price small{font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--ink-3);letter-spacing:.06em;display:block;margin-top:6px}
.plan ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:9px;font-size:.95rem;color:var(--ink-2)}
.plan li{display:flex;gap:10px}
.plan li::before{content:"—";color:var(--accent);flex:none}
.plan .btn{margin-top:auto;align-self:flex-start}

/* ---------- stack ---------- */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-family:"IBM Plex Mono",monospace;font-size:.76rem;padding:6px 11px;
  border:1px solid var(--rule-strong);color:var(--ink-2);border-radius:2px;background:var(--surface);
}
.stack-note{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:28px;margin-top:8px}
.stack-note div p{color:var(--ink-2);font-size:.98rem}

/* ---------- faq ---------- */
details{border-top:1px solid var(--rule);padding:18px 0}
details:last-of-type{border-bottom:1px solid var(--rule)}
summary{
  cursor:pointer;list-style:none;font-family:"Archivo",sans-serif;font-weight:600;font-size:1.06rem;
  display:flex;justify-content:space-between;gap:20px;align-items:center;
}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:"IBM Plex Mono",monospace;color:var(--accent);font-size:1.1rem;flex:none}
details[open] summary::after{content:"–"}
details p{margin-top:12px;color:var(--ink-2);max-width:66ch}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media(min-width:860px){.contact-grid{grid-template-columns:1.05fr .95fr;gap:56px}}
form{display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
input,textarea,select{
  font-family:"IBM Plex Mono",monospace;font-size:.86rem;color:var(--ink);
  background:var(--surface);border:1px solid var(--rule-strong);border-radius:2px;padding:11px 12px;
}
textarea{resize:vertical;min-height:96px;font-family:"Newsreader",Georgia,serif;font-size:1rem}
input::placeholder,textarea::placeholder{color:var(--ink-3)}
.form-note{font-size:.85rem;color:var(--ink-3)}
.sent{
  border:1px solid var(--signal);background:var(--signal-wash);color:var(--signal);
  padding:12px 14px;font-family:"IBM Plex Mono",monospace;font-size:.8rem;
}
.contact-lines{display:flex;flex-direction:column;gap:18px}
.contact-lines a{color:var(--accent);text-decoration:none;border-bottom:1px solid var(--accent-wash)}
.contact-lines a:hover{border-bottom-color:var(--accent)}

footer{padding:36px 0 48px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:var(--ink-3);font-size:.85rem}

/* ---------- reveal ----------
   Scroll-driven CSS animation: no JavaScript involved, so the content is
   never left invisible. Browsers without scroll timelines simply show it. */
@media (prefers-reduced-motion: no-preference){
  @supports (animation-timeline: view()){
    .rv{
      animation:rise linear both;
      animation-timeline:view();
      animation-range:entry 0% entry 45%;
    }
    @keyframes rise{ from{opacity:0;transform:translateY(14px)} to{opacity:1;transform:none} }
  }
}
@media(prefers-reduced-motion:reduce){
  .wire-live{animation:none;stroke-dasharray:none;opacity:.55}
  .btn{transition:none}
}