/* ============================================================
   Atomic Information Systems — aisys.us
   Shared design system. Brand continues the existing AtomicDB
   navy / cobalt / teal identity.
   ============================================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --navy:#0A0F1E;
  --navy2:#0D1530;
  --navy3:#070B16;
  --cobalt:#0047FF;
  --cobalt-lit:#2E6BFF;
  --teal:#00C8B4;
  --amber:#FFB547;
  --red:#FF4D6D;
  --violet:#9B7BFF;
  --ghost:#F0F4FF;
  --muted:#8892B0;
  --muted-dim:#5A6485;
  --card:#111827;
  --card2:#0F1725;
  --border:rgba(0,200,180,0.18);
  --border-soft:rgba(240,244,255,0.09);
  --shadow:0 18px 50px rgba(0,0,0,0.45);
  --r:14px;
  --maxw:1140px;
}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:var(--navy);color:var(--ghost);
  overflow-x:hidden;line-height:1.6;
  font-feature-settings:"tnum" 0;
}
img{max-width:100%;display:block}
a{color:inherit}
::selection{background:rgba(0,200,180,0.28)}

/* ---------------- NAV ---------------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:200;
  display:flex;align-items:center;justify-content:space-between;
  gap:1rem;padding:0.7rem 1.75rem;
  background:rgba(10,15,30,0.86);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);transition:box-shadow .25s,background .25s}
.nav.scrolled{box-shadow:0 8px 32px rgba(0,0,0,0.5);background:rgba(10,15,30,0.96)}
.nav-logo{display:flex;align-items:center;gap:.6rem;text-decoration:none;flex-shrink:0}
.nav-logo img{height:34px;width:auto}
.nav-logo .co{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.6rem;letter-spacing:.12em;
  color:var(--muted);text-transform:uppercase;line-height:1.25;border-left:1px solid var(--border);padding-left:.6rem}
.nav-menu{display:flex;align-items:center;gap:.25rem;list-style:none}
.nav-menu>li{position:relative}
.nav-menu>li>a,.nav-menu>li>button{
  display:flex;align-items:center;gap:.35rem;
  font-family:'Inter','Segoe UI',system-ui,sans-serif;font-size:.845rem;font-weight:500;
  color:var(--muted);text-decoration:none;background:none;border:none;cursor:pointer;
  padding:.55rem .7rem;border-radius:8px;transition:color .18s,background .18s;white-space:nowrap}
.nav-menu>li>a:hover,.nav-menu>li>button:hover{color:var(--ghost);background:rgba(240,244,255,0.05)}
.nav-menu>li>a.active{color:var(--teal)}
.nav-menu .caret{width:8px;height:8px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;
  transform:rotate(45deg) translateY(-2px);transition:transform .2s;opacity:.7}
.nav-menu li.open .caret{transform:rotate(-135deg) translateY(-2px)}
.nav-menu li.open>button{color:var(--ghost);background:rgba(240,244,255,0.05)}

.dropdown{position:absolute;top:calc(100% + .5rem);left:0;min-width:290px;
  background:#0C1322;border:1px solid var(--border);border-radius:var(--r);
  box-shadow:var(--shadow);padding:.5rem;list-style:none;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .18s}
.nav-menu li.open .dropdown{opacity:1;visibility:visible;transform:none}
.dropdown a{display:block;padding:.6rem .75rem;border-radius:9px;text-decoration:none;transition:background .15s}
.dropdown a:hover{background:rgba(0,200,180,0.08)}
.dropdown .dt{font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;font-size:.87rem;font-weight:600;color:var(--ghost);display:flex;align-items:center;gap:.5rem}
.dropdown .dd{font-size:.755rem;color:var(--muted);line-height:1.45;margin-top:.15rem}
.dropdown .pip{width:6px;height:6px;border-radius:50%;background:var(--teal);flex-shrink:0}
.dropdown a.active .dt{color:var(--teal)}

.nav-cta{background:var(--cobalt);color:#fff;padding:.55rem 1.15rem;border-radius:8px;
  font-size:.845rem;font-weight:600;text-decoration:none;white-space:nowrap;
  transition:background .2s,box-shadow .2s,transform .2s}
.nav-cta:hover{background:var(--cobalt-lit);box-shadow:0 0 22px rgba(0,71,255,.45);transform:translateY(-1px)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:6px}
.hamburger span{display:block;width:22px;height:2px;background:var(--ghost);border-radius:2px;transition:.22s}
.hamburger.on span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.on span:nth-child(2){opacity:0}
.hamburger.on span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:1080px){
  /* The menu is a fixed-position flex ITEM of .nav, and top/bottom alone did
     not stretch it — it collapsed to content height and the page showed
     through. Give it an explicit height instead. */
  .nav-menu{position:fixed;top:57px;left:0;right:0;bottom:0;display:none;
    height:calc(100vh - 57px);height:calc(100dvh - 57px);
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;overflow-y:auto;
    background:#080C18;padding:1rem 1.25rem 3rem;border-top:1px solid var(--border)}
  .nav-menu.open{display:flex}
  .nav-menu>li>a,.nav-menu>li>button{width:100%;justify-content:space-between;padding:.85rem .5rem;font-size:.95rem}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;display:none;
    box-shadow:none;background:rgba(255,255,255,.02);margin:0 0 .5rem}
  .nav-menu li.open .dropdown{display:block}
  .hamburger{display:flex}
  .nav-cta{display:none}
}

/* ---------------- LAYOUT ---------------- */
section{padding:5.5rem 1.75rem;position:relative}
.inner{max-width:var(--maxw);margin:0 auto;position:relative;z-index:1}
.inner-narrow{max-width:800px;margin:0 auto;position:relative;z-index:1}
.tight{padding-top:0}
.band{background:var(--navy2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.band-dark{background:var(--navy3)}

.label{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.685rem;color:var(--teal);
  letter-spacing:.16em;text-transform:uppercase;margin-bottom:.8rem;display:block}
.label.amber{color:var(--amber)}
.label.violet{color:var(--violet)}

h1{font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;font-size:clamp(2.3rem,4.6vw,3.7rem);font-weight:700;
  line-height:1.06;letter-spacing:-.03em;margin-bottom:1.2rem}
h2{font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;font-size:clamp(1.65rem,3vw,2.4rem);font-weight:700;
  line-height:1.16;letter-spacing:-.025em;margin-bottom:1rem}
h3{font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;font-size:1.15rem;font-weight:600;letter-spacing:-.015em;margin-bottom:.5rem}
h4{font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;font-size:.98rem;font-weight:600;margin-bottom:.4rem}
em.g{font-style:normal;background:linear-gradient(135deg,var(--teal),var(--cobalt-lit));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
em.a{font-style:normal;color:var(--amber)}
p{color:var(--muted)}
.sub{font-size:1.06rem;color:var(--muted);line-height:1.75;max-width:640px}
.sub.wide{max-width:780px}
.lede{font-size:1.15rem;line-height:1.7;color:#C3CBE4;max-width:760px}
.mono{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace}
.small{font-size:.83rem}
.dim{color:var(--muted-dim)}
.mt1{margin-top:.75rem}.mt2{margin-top:1.5rem}.mt3{margin-top:2.5rem}.mt4{margin-top:3.5rem}
.mb2{margin-bottom:1.5rem}.mb3{margin-bottom:2.5rem}
.center{text-align:center}
.center .sub,.center .lede{margin-left:auto;margin-right:auto}

.btn{display:inline-block;padding:.85rem 1.9rem;border-radius:9px;font-size:.93rem;font-weight:600;
  text-decoration:none;transition:all .2s;border:none;cursor:pointer;font-family:inherit}
.btn-primary{background:var(--cobalt);color:#fff}
.btn-primary:hover{background:var(--cobalt-lit);box-shadow:0 4px 26px rgba(0,71,255,.5);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ghost);border:1px solid rgba(240,244,255,.2)}
.btn-ghost:hover{border-color:rgba(0,200,180,.5);background:rgba(0,200,180,.06)}
.btn-teal{background:var(--teal);color:#04231F}
.btn-teal:hover{box-shadow:0 4px 26px rgba(0,200,180,.4);transform:translateY(-1px)}
.btn-row{display:flex;gap:.9rem;flex-wrap:wrap;margin-top:2rem}

/* ---------------- HERO ---------------- */
.hero{padding:9rem 1.75rem 5rem;overflow:hidden}
.gridbg{position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(0,71,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(0,71,255,.05) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(ellipse 78% 70% at 20% 45%,black,transparent);
  mask-image:radial-gradient(ellipse 78% 70% at 20% 45%,black,transparent)}
.glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;opacity:.5}
.glow.teal{background:rgba(0,200,180,.16)}
.glow.cobalt{background:rgba(0,71,255,.18)}

/* ---------------- CARDS ---------------- */
.grid{display:grid;gap:1.15rem}
.g2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(268px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(215px,1fr))}
.split{display:grid;grid-template-columns:1fr 1fr;gap:3.25rem;align-items:center}
.split.top{align-items:start}
@media(max-width:880px){.split{grid-template-columns:1fr;gap:2.25rem}}

.card{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:1.65rem;
  transition:border-color .22s,transform .22s,box-shadow .22s}
.card:hover{border-color:rgba(0,200,180,.42);transform:translateY(-3px);box-shadow:0 12px 34px rgba(0,0,0,.35)}
.card.flat:hover{transform:none;box-shadow:none}
.card .ic{font-size:1.5rem;margin-bottom:.85rem;display:block}
.card p{font-size:.865rem;line-height:1.66}
.card .tag{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.68rem;color:var(--teal);
  letter-spacing:.08em;margin-top:.9rem;display:block;border-top:1px solid var(--border-soft);padding-top:.7rem}

.pcard{display:block;text-decoration:none;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r);padding:1.6rem;transition:.22s;position:relative;overflow:hidden}
.pcard::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,transparent 55%,rgba(0,200,180,.07));opacity:0;transition:.22s}
.pcard:hover{border-color:rgba(0,200,180,.45);transform:translateY(-3px)}
.pcard:hover::after{opacity:1}
.pcard .nm{font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;font-size:1.18rem;font-weight:700;color:var(--ghost);margin-bottom:.15rem}
.pcard .rl{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.68rem;color:var(--teal);letter-spacing:.09em;text-transform:uppercase;margin-bottom:.7rem}
.pcard .ds{font-size:.865rem;color:var(--muted);line-height:1.65}
.pcard .go{font-size:.78rem;color:var(--cobalt-lit);margin-top:1rem;font-weight:600}

/* ---------------- STATS ---------------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1px;background:var(--border);
  border:1px solid var(--border);border-radius:var(--r);overflow:hidden}
.stat{background:var(--navy2);padding:1.7rem 1.25rem;text-align:center}
.stat .n{font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;font-size:clamp(1.55rem,3vw,2.15rem);font-weight:700;color:var(--teal);line-height:1;letter-spacing:-.02em}
.stat .n.amber{color:var(--amber)}
.stat .l{font-size:.745rem;color:var(--muted);margin-top:.55rem;line-height:1.45}

/* ---------------- TABLES ---------------- */
.tblwrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r);background:var(--card)}
table{width:100%;border-collapse:collapse;font-size:.855rem;min-width:520px}
th{text-align:left;padding:.9rem 1.1rem;font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.685rem;
  letter-spacing:.1em;text-transform:uppercase;color:var(--teal);
  border-bottom:1px solid var(--border);background:rgba(0,200,180,.04);white-space:nowrap}
td{padding:.85rem 1.1rem;border-bottom:1px solid var(--border-soft);color:var(--muted);vertical-align:top}
tr:last-child td{border-bottom:none}
tbody tr:hover td{background:rgba(255,255,255,.017)}
td strong,th strong{color:var(--ghost);font-weight:600}
td.good{color:var(--teal)}
td.bad{color:var(--red)}
.tbl-hi td{background:rgba(0,200,180,.05)}
.tbl-hi td:first-child{color:var(--teal);font-weight:600}

/* ---------------- MISC BLOCKS ---------------- */
.pull{border-left:3px solid var(--teal);padding:.35rem 0 .35rem 1.4rem;margin:2rem 0;
  font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;font-size:clamp(1.08rem,2vw,1.4rem);font-weight:500;
  line-height:1.5;color:var(--ghost);letter-spacing:-.01em}
.note{background:rgba(255,181,71,.06);border:1px solid rgba(255,181,71,.26);border-radius:11px;
  padding:1.15rem 1.35rem;font-size:.87rem;color:#D9C39A;line-height:1.7}
.note strong{color:var(--amber)}
.note.teal{background:rgba(0,200,180,.05);border-color:rgba(0,200,180,.26);color:#9FC9C3}
.note.teal strong{color:var(--teal)}
.roadmap{background:repeating-linear-gradient(45deg,rgba(155,123,255,.05) 0 12px,rgba(155,123,255,.02) 12px 24px);
  border:1px dashed rgba(155,123,255,.4);border-radius:var(--r);padding:1.6rem}
.roadmap .label{color:var(--violet)}
.roadmap p{color:#AFA6D0;font-size:.875rem}
.code{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.78rem;color:var(--teal);
  background:rgba(0,0,0,.4);border:1px solid var(--border-soft);border-radius:9px;
  padding:1rem 1.15rem;overflow-x:auto;white-space:pre;line-height:1.65;color:#9FE8DE}
code.i{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.85em;background:rgba(0,200,180,.09);
  border-radius:4px;padding:.12em .4em;color:var(--teal)}

.chip{display:inline-flex;align-items:center;gap:.4rem;font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.68rem;
  letter-spacing:.07em;text-transform:uppercase;padding:.32rem .7rem;border-radius:99px;
  border:1px solid var(--border);color:var(--teal);background:rgba(0,200,180,.06)}
.chip.amber{color:var(--amber);border-color:rgba(255,181,71,.3);background:rgba(255,181,71,.06)}
.chip.red{color:var(--red);border-color:rgba(255,77,109,.3);background:rgba(255,77,109,.06)}
.chip.violet{color:var(--violet);border-color:rgba(155,123,255,.3);background:rgba(155,123,255,.06)}
.chip.grey{color:var(--muted);border-color:var(--border-soft);background:rgba(255,255,255,.03)}
.chiprow{display:flex;gap:.5rem;flex-wrap:wrap}

.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;counter-reset:s}
.step{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:1.35rem;position:relative}
.step .no{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.7rem;color:var(--navy);background:var(--teal);
  width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-weight:700;margin-bottom:.8rem}
.step h4{font-size:.92rem}
.step p{font-size:.815rem;line-height:1.6}

.vs{display:grid;grid-template-columns:1fr 1fr;gap:1.15rem}
@media(max-width:760px){.vs{grid-template-columns:1fr}}
.vs-col{border-radius:var(--r);padding:1.65rem;border:1px solid}
.vs-old{background:rgba(255,77,109,.035);border-color:rgba(255,77,109,.22)}
.vs-new{background:rgba(0,200,180,.04);border-color:rgba(0,200,180,.28)}
.vs-col h3{font-size:1rem}
.vs-old h3{color:var(--red)}
.vs-new h3{color:var(--teal)}
.vs-col ul{list-style:none;margin-top:1rem}
.vs-col li{font-size:.85rem;color:var(--muted);line-height:1.6;padding-left:1.5rem;position:relative;margin-bottom:.85rem}
.vs-old li::before{content:'✕';position:absolute;left:0;color:var(--red);font-size:.8rem}
.vs-new li::before{content:'✓';position:absolute;left:0;color:var(--teal);font-size:.8rem}
.vs-col li strong{color:var(--ghost);display:block;font-weight:600;margin-bottom:.15rem}

.shot{border:1px solid var(--border);border-radius:var(--r);overflow:hidden;background:var(--navy3);
  box-shadow:var(--shadow);transition:.25s;cursor:zoom-in}
.shot:hover{border-color:rgba(0,200,180,.45)}
.shot img{width:100%}
.shot .cap{font-size:.76rem;color:var(--muted);padding:.7rem 1rem;border-top:1px solid var(--border-soft);
  font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;letter-spacing:.04em}

/* lightbox */
.lb{position:fixed;inset:0;z-index:500;background:rgba(4,7,14,.94);display:none;
  align-items:center;justify-content:center;padding:2rem;cursor:zoom-out;backdrop-filter:blur(6px)}
.lb.on{display:flex}
.lb img{max-width:96vw;max-height:88vh;border-radius:10px;border:1px solid var(--border);object-fit:contain}
.lb .x{position:absolute;top:1.25rem;right:1.5rem;color:var(--ghost);font-size:1.8rem;
  background:none;border:none;cursor:pointer;line-height:1}

/* ---------------- INTERACTIVE SHELL ---------------- */
.demo{background:linear-gradient(160deg,#0C1322,#0A0F1E);border:1px solid var(--border);
  border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
.demo-bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  padding:.85rem 1.25rem;border-bottom:1px solid var(--border);background:rgba(0,200,180,.035)}
.demo-bar .t{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.7rem;letter-spacing:.13em;
  text-transform:uppercase;color:var(--teal)}
.demo-bar .t::before{content:'▶ ';opacity:.75}
.demo-body{padding:1.6rem}
.demo-foot{padding:.85rem 1.25rem;border-top:1px solid var(--border-soft);font-size:.775rem;color:var(--muted-dim);
  background:rgba(0,0,0,.22);line-height:1.6}
.ctrl{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center}
.btn-s{font-family:'Inter','Segoe UI',system-ui,sans-serif;font-size:.78rem;font-weight:600;padding:.45rem .95rem;border-radius:7px;
  border:1px solid var(--border);background:rgba(0,200,180,.07);color:var(--teal);cursor:pointer;transition:.16s}
.btn-s:hover{background:rgba(0,200,180,.16);border-color:rgba(0,200,180,.5)}
.btn-s.on{background:var(--teal);color:#04231F;border-color:var(--teal)}
.btn-s.alt{color:var(--cobalt-lit);border-color:rgba(0,71,255,.35);background:rgba(0,71,255,.09)}
.btn-s.alt:hover{background:rgba(0,71,255,.2)}
.btn-s.alt.on{background:var(--cobalt);color:#fff;border-color:var(--cobalt)}
.btn-s.warn{color:var(--amber);border-color:rgba(255,181,71,.35);background:rgba(255,181,71,.08)}
.btn-s.warn:hover{background:rgba(255,181,71,.18)}
.btn-s:disabled{opacity:.35;cursor:not-allowed}
.seg{display:inline-flex;border:1px solid var(--border);border-radius:8px;overflow:hidden}
.seg button{font-family:'Inter','Segoe UI',system-ui,sans-serif;font-size:.78rem;font-weight:600;padding:.45rem 1rem;
  background:transparent;color:var(--muted);border:none;cursor:pointer;transition:.16s;border-right:1px solid var(--border)}
.seg button:last-child{border-right:none}
.seg button:hover{color:var(--ghost);background:rgba(255,255,255,.04)}
.seg button.on{background:var(--teal);color:#04231F}
.readout{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.75rem;color:var(--muted);display:flex;gap:1.25rem;flex-wrap:wrap}
.readout b{color:var(--teal);font-weight:700}
.readout .k{color:var(--muted-dim)}

canvas{display:block;max-width:100%}
.canvas-box{border:1px solid var(--border-soft);border-radius:11px;background:radial-gradient(ellipse at 50% 40%,#0E1navy,#080C16);
  background:radial-gradient(ellipse at 50% 40%,#0D1424,#080C16);overflow:hidden}

/* tabs */
.tabs{display:flex;gap:.35rem;flex-wrap:wrap;border-bottom:1px solid var(--border);margin-bottom:1.75rem}
.tabs button{font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;font-size:.87rem;font-weight:600;padding:.7rem 1.05rem;
  background:none;border:none;border-bottom:2px solid transparent;color:var(--muted);cursor:pointer;transition:.16s;margin-bottom:-1px}
.tabs button:hover{color:var(--ghost)}
.tabs button.on{color:var(--teal);border-bottom-color:var(--teal)}
.tabpane{display:none}
.tabpane.on{display:block;animation:fade .3s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* accordion */
.acc{border:1px solid var(--border);border-radius:11px;overflow:hidden;background:var(--card)}
.acc+.acc{margin-top:.7rem}
.acc>button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:1rem 1.25rem;background:none;border:none;cursor:pointer;text-align:left;
  font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;font-size:.93rem;font-weight:600;color:var(--ghost);transition:.16s}
.acc>button:hover{background:rgba(0,200,180,.05)}
.acc>button .pm{color:var(--teal);font-size:1.1rem;flex-shrink:0;transition:transform .2s}
.acc.on>button .pm{transform:rotate(45deg)}
.acc .accb{display:none;padding:0 1.25rem 1.25rem;font-size:.87rem;color:var(--muted);line-height:1.75}
.acc.on .accb{display:block;animation:fade .25s ease}

/* forms */
.field{margin-bottom:1.1rem}
.field label{display:block;font-size:.78rem;font-weight:600;color:var(--ghost);margin-bottom:.4rem;
  font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;letter-spacing:.01em}
.field label .req{color:var(--red);margin-left:.2rem}
.field input,.field select,.field textarea{
  width:100%;background:rgba(0,0,0,.32);border:1px solid var(--border-soft);border-radius:9px;
  padding:.72rem .9rem;color:var(--ghost);font-family:'Inter','Segoe UI',system-ui,sans-serif;font-size:.9rem;transition:.16s}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--teal);background:rgba(0,200,180,.045);box-shadow:0 0 0 3px rgba(0,200,180,.1)}
.field input::placeholder,.field textarea::placeholder{color:var(--muted-dim)}
.field textarea{resize:vertical;min-height:130px;line-height:1.65}
.field select{appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%238892B0' stroke-width='1.6' fill='none' stroke-linecap='round'/></svg>");
  background-repeat:no-repeat;background-position:right .95rem center;padding-right:2.4rem}
.field select option{background:#0C1322;color:var(--ghost)}
.field .hint{font-size:.74rem;color:var(--muted-dim);margin-top:.35rem;line-height:1.5}
.field.err input,.field.err select,.field.err textarea{border-color:var(--red);box-shadow:0 0 0 3px rgba(255,77,109,.11)}
.field .errmsg{display:none;font-size:.74rem;color:var(--red);margin-top:.35rem}
.field.err .errmsg{display:block}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:0 1.1rem}
@media(max-width:640px){.f2{grid-template-columns:1fr}}
.checkline{display:flex;gap:.65rem;align-items:flex-start;margin-bottom:.7rem;cursor:pointer}
.checkline input{width:16px;height:16px;margin-top:.2rem;accent-color:var(--teal);flex-shrink:0;cursor:pointer}
.checkline span{font-size:.85rem;color:var(--muted);line-height:1.55}

/* download list */
.dl{display:flex;align-items:center;gap:1.1rem;background:var(--card);border:1px solid var(--border);
  border-radius:12px;padding:1.05rem 1.25rem;text-decoration:none;transition:.2s;margin-bottom:.7rem}
.dl:hover{border-color:rgba(0,200,180,.45);transform:translateX(3px);background:#131C2C}
.dl .ext{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.63rem;font-weight:700;letter-spacing:.08em;
  padding:.42rem .55rem;border-radius:6px;flex-shrink:0;min-width:52px;text-align:center}
.dl .ext.pdf{background:rgba(255,77,109,.14);color:var(--red);border:1px solid rgba(255,77,109,.3)}
.dl .ext.doc{background:rgba(0,71,255,.16);color:var(--cobalt-lit);border:1px solid rgba(0,71,255,.35)}
.dl .meta{flex:1;min-width:0}
.dl .nm{font-family:'Space Grotesk','Segoe UI Variable Display','Segoe UI',system-ui,sans-serif;font-size:.94rem;font-weight:600;color:var(--ghost);margin-bottom:.15rem}
.dl .ds{font-size:.79rem;color:var(--muted);line-height:1.5}
.dl .sz{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.7rem;color:var(--muted-dim);flex-shrink:0;white-space:nowrap}
.dl .arw{color:var(--teal);font-size:1.05rem;flex-shrink:0}

/* video */
.vgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:1.25rem}
.vcard{background:var(--card);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;transition:.22s}
.vcard:hover{border-color:rgba(0,200,180,.42);transform:translateY(-3px)}
.vthumb{position:relative;aspect-ratio:16/9;background:linear-gradient(140deg,#0F1A2E,#0A0F1E);
  display:flex;align-items:center;justify-content:center;overflow:hidden;border-bottom:1px solid var(--border-soft)}
.vthumb video{width:100%;height:100%;object-fit:cover}
.vthumb .play{width:56px;height:56px;border-radius:50%;background:rgba(0,200,180,.16);border:1px solid var(--teal);
  display:flex;align-items:center;justify-content:center;color:var(--teal);font-size:1.1rem;
  transition:.2s;backdrop-filter:blur(4px)}
.vcard:hover .vthumb .play{background:var(--teal);color:#04231F;transform:scale(1.08)}
.vthumb .soon{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted-dim);border:1px dashed var(--border-soft);padding:.5rem .9rem;border-radius:99px}
.vthumb .dur{position:absolute;bottom:.6rem;right:.7rem;font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.68rem;
  background:rgba(0,0,0,.75);color:var(--ghost);padding:.18rem .45rem;border-radius:4px}
.vmeta{padding:1.15rem 1.25rem}
.vmeta h3{font-size:1rem;margin-bottom:.3rem}
.vmeta p{font-size:.82rem;line-height:1.6}

/* ---------------- FOOTER ---------------- */
.foot{background:#050810;border-top:1px solid var(--border-soft);padding:3.5rem 1.75rem 2rem}
.foot-in{max-width:var(--maxw);margin:0 auto}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2.5rem;margin-bottom:2.75rem}
@media(max-width:820px){.foot-top{grid-template-columns:1fr 1fr;gap:2rem}}
@media(max-width:480px){.foot-top{grid-template-columns:1fr}}
.foot h5{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.67rem;letter-spacing:.15em;text-transform:uppercase;
  color:var(--teal);margin-bottom:1rem}
.foot ul{list-style:none}
.foot li{margin-bottom:.5rem}
.foot a{font-size:.83rem;color:var(--muted);text-decoration:none;transition:color .15s}
.foot a:hover{color:var(--ghost)}
.foot .brand img{height:32px;margin-bottom:.9rem}
.foot .brand p{font-size:.82rem;line-height:1.7;max-width:290px}
.foot-bot{border-top:1px solid var(--border-soft);padding-top:1.5rem;display:flex;
  justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}
.foot-bot span{font-size:.77rem;color:var(--muted-dim)}
.foot-bot .badge{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.67rem;color:var(--teal);
  border:1px solid var(--border);padding:.3rem .7rem;border-radius:99px}

/* ---------------- REVEAL ---------------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .65s cubic-bezier(.2,.7,.3,1),transform .65s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* page header */
.phead{padding:8.5rem 1.75rem 3.5rem;overflow:hidden}
.crumb{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.7rem;letter-spacing:.11em;color:var(--muted-dim);margin-bottom:1rem}
.crumb a{color:var(--muted);text-decoration:none}
.crumb a:hover{color:var(--teal)}

@media(max-width:600px){
  section{padding:3.5rem 1.15rem}
  .hero{padding:7rem 1.15rem 3.5rem}
  .phead{padding:7rem 1.15rem 2.5rem}
  .demo-body{padding:1.1rem}
  .foot{padding:2.5rem 1.15rem 1.5rem}
}

/* ---------------- LIVE ENGINE BAR ---------------- */
.livebar{display:flex;align-items:center;gap:.7rem;flex-wrap:wrap;
  padding:.6rem .95rem;border-radius:9px;margin-bottom:1rem;
  font-size:.8rem;line-height:1.5;border:1px solid var(--border-soft);
  background:rgba(255,255,255,.025);color:var(--muted);transition:.25s}
.livebar .livetext{flex:1;min-width:180px}
.livebar.live{border-color:rgba(0,200,180,.45);background:rgba(0,200,180,.07);color:#9FE8DE}
.livebar.ready{border-color:rgba(0,71,255,.4);background:rgba(0,71,255,.07);color:#A9BEEA}
.livebar.busy{border-color:rgba(155,123,255,.4);background:rgba(155,123,255,.07);color:#BEB0E8}
.livebar.warn{border-color:rgba(255,181,71,.4);background:rgba(255,181,71,.06);color:#D9C39A}
.livedot{width:8px;height:8px;border-radius:50%;flex-shrink:0;background:var(--muted-dim)}
.livedot.live{background:var(--teal);box-shadow:0 0 0 0 rgba(0,200,180,.6);animation:lpulse 2.2s infinite}
.livedot.ready{background:var(--cobalt-lit)}
.livedot.busy{background:var(--violet);animation:lblink .8s infinite}
.livedot.warn{background:var(--amber)}
@keyframes lpulse{0%{box-shadow:0 0 0 0 rgba(0,200,180,.55)}70%{box-shadow:0 0 0 7px rgba(0,200,180,0)}100%{box-shadow:0 0 0 0 rgba(0,200,180,0)}}
@keyframes lblink{0%,100%{opacity:1}50%{opacity:.3}}
.livebar .btn-s{flex-shrink:0}
.livesrc{font-family:'Space Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;font-size:.62rem;letter-spacing:.07em;text-transform:uppercase;
  padding:.16rem .45rem;border-radius:4px;margin-left:.45rem;vertical-align:middle}
.livesrc.engine{background:rgba(0,200,180,.16);color:var(--teal)}
.livesrc.example{background:rgba(255,255,255,.06);color:var(--muted-dim)}