/* Variant A - Command Center : dark tactical ops console */
:root{
  --bg:#0a0d12; --panel:#10151d; --panel2:#0d121a;
  --line:rgba(125,135,148,.18); --line2:rgba(125,135,148,.09);
  --ink:#e8edf5; --mut:#8b95a1; --dim:#5a636e;
  --red:#ff2740; --red2:#ff5468; --red-dim:rgba(255,39,64,.14);
  --disp:'Space Grotesk',system-ui,sans-serif;
  --body:'Inter',system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --rail:248px; --pad:clamp(20px,4vw,56px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
#grid-bg{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--disp);font-weight:700;line-height:1.05;letter-spacing:-.02em;margin:0}
p{margin:0}
.mono{font-family:var(--mono)}
.skip{position:absolute;left:-999px;top:0;background:var(--red);color:#fff;padding:10px 16px;z-index:100}
.skip:focus{left:8px;top:8px}

/* ===== rail ===== */
.rail{position:fixed;left:0;top:0;bottom:0;width:var(--rail);z-index:40;
  background:linear-gradient(180deg,#0c1119,#0a0d12);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:22px 20px;gap:26px}
.rail-brand{display:flex;align-items:center;gap:12px}
.rail-brand .brand-mark{width:56px;height:auto}
.rail-word{display:flex;flex-direction:column;line-height:1}
.rail-word b{font-family:var(--disp);font-size:15px;letter-spacing:2.5px}
.rail-word small{font-family:var(--disp);font-size:7.5px;letter-spacing:3.4px;color:var(--mut);margin-top:3px}
.rail-nav{display:flex;flex-direction:column;gap:2px;margin-top:4px}
.rail-link{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:8px;
  color:var(--mut);font-size:13.5px;font-weight:500;position:relative;transition:.2s}
.rail-num{font-family:var(--mono);font-size:10.5px;color:var(--dim)}
.rail-link:hover{background:var(--panel);color:var(--ink)}
.rail-link.active{background:var(--panel);color:var(--ink)}
.rail-link.active::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:2px;background:var(--red);border-radius:2px}
.rail-link.active .rail-num{color:var(--red)}
.rail-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;border-top:1px solid var(--line2);padding-top:18px}
.rail-status{font-family:var(--mono);font-size:9.5px;letter-spacing:1px;color:var(--mut);display:flex;align-items:center;gap:7px}
.dot{width:7px;height:7px;border-radius:50%;background:#39d98a;box-shadow:0 0 0 0 rgba(57,217,138,.6);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(57,217,138,.5)}70%{box-shadow:0 0 0 7px rgba(57,217,138,0)}100%{box-shadow:0 0 0 0 rgba(57,217,138,0)}}
.rail-meta{font-family:var(--mono);font-size:8.5px;letter-spacing:1.4px;color:var(--dim)}
.rail-cta{background:var(--red);color:#fff;text-align:center;padding:11px;border-radius:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.3px;transition:.2s}
.rail-cta:hover{background:var(--red2);box-shadow:0 8px 24px -8px var(--red)}
.rail-toggle{display:none}

/* ===== stage ===== */
.stage{position:relative;z-index:1;margin-left:var(--rail);min-height:100vh;
  display:flex;flex-direction:column}
section{padding:clamp(52px,7vw,104px) var(--pad)}
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:2px;color:var(--red);text-transform:uppercase;display:inline-block}

/* panels */
.panel{background:linear-gradient(160deg,var(--panel),var(--panel2));border:1px solid var(--line);
  border-radius:14px;position:relative;overflow:hidden}
.panel::before,.panel::after{content:"";position:absolute;width:10px;height:10px;border:1px solid var(--red);opacity:.5}
.panel::before{top:9px;left:9px;border-right:none;border-bottom:none}
.panel::after{bottom:9px;right:9px;border-left:none;border-top:none}

/* hero */
.hero{position:relative;padding-top:clamp(64px,9vw,128px);max-width:1180px}
.hero-grid-line{position:absolute;inset:0;background:
  linear-gradient(90deg,var(--line2) 1px,transparent 1px) 0 0/64px 100%,
  linear-gradient(180deg,var(--line2) 1px,transparent 1px) 0 0/100% 64px;
  mask:radial-gradient(120% 90% at 15% 0,#000,transparent 72%);pointer-events:none}
.hero h1{font-size:clamp(2.4rem,6vw,4.6rem);max-width:15ch;margin:16px 0 0;position:relative}
.hero .lede{color:var(--mut);font-size:clamp(1.05rem,1.6vw,1.28rem);max-width:60ch;margin-top:22px;position:relative}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px;position:relative}

.btn{display:inline-flex;align-items:center;gap:9px;background:var(--red);color:#fff;
  padding:14px 24px;border-radius:9px;font-weight:600;font-size:14.5px;border:none;cursor:pointer;
  font-family:var(--body);transition:.2s;letter-spacing:.2px}
.btn:hover{background:var(--red2);transform:translateY(-2px);box-shadow:0 14px 34px -12px var(--red)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn.ghost:hover{border-color:var(--red);box-shadow:none;background:var(--red-dim)}

.band-head{max-width:1180px;margin:0 auto 40px;display:flex;flex-direction:column;gap:10px;position:relative}
.band-head h2{font-size:clamp(1.7rem,3.4vw,2.7rem)}
.seeall{color:var(--red);font-size:11.5px;letter-spacing:1.5px;position:absolute;right:0;bottom:4px}
.band,.statband,.svc,.contact-wrap,.cta{max-width:1180px;margin-left:auto;margin-right:auto}

/* thesis */
.tgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:18px}
.tcard{padding:26px 24px}
.tk{font-size:10px;letter-spacing:1.6px;color:var(--red)}
.tcard h3{font-size:1.28rem;margin:14px 0 10px}
.tcard p{color:var(--mut);font-size:.95rem}

/* stats */
.statband{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.stat{background:var(--panel);padding:30px 26px;display:flex;flex-direction:column;gap:8px}
.stat b{font-size:1.35rem;color:var(--ink);letter-spacing:-.5px}
.stat span{color:var(--mut);font-size:.86rem}

/* overview */
.ogrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px}
.ocard{padding:28px 26px;display:flex;flex-direction:column;transition:.24s}
.ocard:hover{transform:translateY(-4px);border-color:rgba(255,39,64,.4)}
.oc-idx{font-size:11px;color:var(--red);letter-spacing:1px}
.ocard h3{font-size:1.3rem;margin:14px 0 10px}
.ocard p{color:var(--mut);font-size:.94rem;flex:1}
.oc-go{font-size:10.5px;letter-spacing:1.5px;color:var(--dim);margin-top:18px;transition:.2s}
.ocard:hover .oc-go{color:var(--red)}

/* services */
.svc{padding:34px clamp(24px,3vw,40px);margin-bottom:20px}
.svc-head{display:flex;gap:20px;align-items:flex-start;margin-bottom:24px;padding-bottom:22px;border-bottom:1px solid var(--line2)}
.svc-idx{font-size:1.3rem;color:var(--red);padding-top:4px}
.svc-head h2{font-size:clamp(1.4rem,2.6vw,2rem)}
.svc-head p{color:var(--mut);margin-top:8px;max-width:70ch}
.sg-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:24px 30px}
.sg h4{font-size:10.5px;letter-spacing:1.4px;color:var(--red);margin-bottom:12px;font-weight:500}
.sg ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.sg li{color:var(--mut);font-size:.9rem;padding-left:16px;position:relative}
.sg li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;background:var(--red);transform:rotate(45deg);opacity:.7}

/* lifecycle */
.lc-grid{display:flex;flex-direction:column;gap:0;border-left:1px solid var(--line)}
.lc{display:flex;gap:24px;padding:24px 0 24px 30px;position:relative}
.lc::before{content:"";position:absolute;left:-5px;top:30px;width:9px;height:9px;background:var(--red);border-radius:50%;box-shadow:0 0 0 4px var(--bg)}
.lc-n{font-size:1.5rem;color:var(--dim);min-width:44px}
.lc h3{font-size:1.24rem;margin-bottom:8px}
.lc p{color:var(--mut);font-size:.95rem;max-width:75ch}

/* models */
.model-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px}
.model{padding:30px 28px}
.model h3{font-size:1.35rem;color:var(--red)}
.model p{color:var(--mut);margin:12px 0 18px;font-size:.95rem}
.model ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.model li{color:var(--ink);font-size:.9rem;padding-left:18px;position:relative}
.model li::before{content:"\2192";position:absolute;left:0;color:var(--red)}

/* hvi */
.hvi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:18px}
.hvi{padding:28px 26px}
.hvi-idx{font-size:11px;color:var(--red);letter-spacing:1px}
.hvi h3{font-size:1.24rem;margin:12px 0 8px}
.hvi-d{color:var(--ink);font-size:.95rem;margin-bottom:14px}
.hvi ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.hvi li{color:var(--mut);font-size:.88rem;padding-left:16px;position:relative}
.hvi li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;background:var(--red);transform:rotate(45deg);opacity:.7}

/* cta */
.cta{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:44px clamp(28px,4vw,52px);flex-wrap:wrap;margin-top:20px}
.cta h2{font-size:clamp(1.5rem,3vw,2.3rem);margin-top:6px}

/* contact */
.contact-wrap{display:grid;grid-template-columns:1.4fr .9fr;gap:20px;align-items:start}
.form{padding:32px clamp(24px,3vw,38px);display:flex;flex-direction:column;gap:18px}
.form-note{background:var(--red-dim);border:1px solid rgba(255,39,64,.4);color:var(--ink);
  padding:14px 16px;border-radius:9px;font-family:var(--mono);font-size:12px;line-height:1.5}
.form-note a{color:var(--red2)}
.fr{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form label{display:flex;flex-direction:column;gap:8px;font-size:12px;letter-spacing:.4px;
  color:var(--mut);font-weight:500;text-transform:uppercase;font-family:var(--mono)}
.form input,.form select,.form textarea{background:#0a0e14;border:1px solid var(--line);color:var(--ink);
  padding:12px 14px;border-radius:8px;font-family:var(--body);font-size:14px;transition:.2s}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--red);box-shadow:0 0 0 3px var(--red-dim)}
.form textarea{resize:vertical}
.form .btn{align-self:flex-start;margin-top:4px}
.contact-side{padding:30px 26px;display:flex;flex-direction:column;gap:14px}
.contact-side h3{font-size:11px;letter-spacing:1.6px;color:var(--red)}
.cline{display:flex;flex-direction:column;gap:3px;padding:12px 0;border-bottom:1px solid var(--line2);font-size:.95rem}
.cline span{font-family:var(--mono);font-size:9.5px;letter-spacing:1.4px;color:var(--dim)}
.models-mini{margin-top:10px;display:flex;flex-direction:column;gap:12px}
.models-mini .model{padding:18px 18px}
.models-mini .model h3{font-size:1.05rem}
.models-mini .model p{margin:8px 0 0;font-size:.85rem}

/* footer */
.foot{margin-top:auto;border-top:1px solid var(--line);padding:0}
.foot-in{max-width:1180px;margin:0 auto;padding:48px var(--pad) 30px;display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.foot-brand .brand-mark{width:210px;height:auto}
.foot-cols{display:flex;gap:60px;flex-wrap:wrap}
.foot-cols h4{font-family:var(--mono);font-size:10px;letter-spacing:1.6px;color:var(--red);margin-bottom:14px;font-weight:500}
.foot-cols a,.foot-cols span{display:block;color:var(--mut);font-size:.9rem;margin-bottom:9px}
.foot-cols a:hover{color:var(--ink)}
.foot-bar{border-top:1px solid var(--line2);padding:18px var(--pad);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:11px;color:var(--dim);max-width:1180px;margin:0 auto}
.foot-bar .mono{letter-spacing:1.2px}

/* reveal */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
[data-reveal].is-in{opacity:1;transform:none}

/* responsive */
@media(max-width:1100px){.contact-wrap{grid-template-columns:1fr}}
@media(max-width:860px){
  :root{--rail:0px}
  .rail{transform:translateX(-100%);transition:transform .3s;width:270px}
  .rail.open{transform:none;box-shadow:0 0 60px rgba(0,0,0,.6)}
  .rail-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;position:fixed;top:16px;right:16px;z-index:60;
    width:46px;height:46px;background:var(--panel);border:1px solid var(--line);border-radius:10px;cursor:pointer;padding:0 12px}
  .rail-toggle span{height:2px;background:var(--ink);border-radius:2px;transition:.25s}
  .rail-toggle.x span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .rail-toggle.x span:nth-child(2){opacity:0}
  .rail-toggle.x span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .stage{margin-left:0}
}
@media(max-width:560px){.fr{grid-template-columns:1fr}.seeall{position:static;margin-top:8px}}