/* ============================================================
   C3 Consulting — site.css
   Design system synthesized from defense/ops-intel + premium
   dev-tools + AI-lab teardowns. Dark, instrument-grade.
   ============================================================ */

/* ---- Fonts (self-hosted) ---- */
@font-face{font-family:'Clash Display';src:url('../fonts/clash-display-500.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'Clash Display';src:url('../fonts/clash-display-600.woff2') format('woff2');font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:'Satoshi';src:url('../fonts/satoshi-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Satoshi';src:url('../fonts/satoshi-500.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'Satoshi';src:url('../fonts/satoshi-700.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:'JetBrains Mono';src:url('../fonts/jetbrains-mono-latin-400-normal.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'JetBrains Mono';src:url('../fonts/jetbrains-mono-latin-500-normal.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}

/* ---- Tokens ---- */
:root{
  --bg:#0A0B0D; --surface:#111317; --surface-2:#16191F;
  --line:rgba(255,255,255,0.08); --line-strong:rgba(255,255,255,0.14);
  --text:#F2F4F7; --muted:#9BA1AC; --faint:#5C636E;
  --accent:#4DA3FF; --accent-2:#36D399; --accent-ink:#0A0B0D;
  --accent-08:rgba(77,163,255,0.08); --accent-14:rgba(77,163,255,0.14);

  --font-display:'Clash Display',system-ui,sans-serif;
  --font-body:'Satoshi','Helvetica Neue',Arial,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;

  --ease-out-expo:cubic-bezier(0.16,1,0.3,1);
  --ease-out-quint:cubic-bezier(0.23,1,0.32,1);
  --ease-in-out:cubic-bezier(0.65,0,0.35,1);

  --maxw:1200px;
  --gutter:clamp(24px,5vw,80px);
  --r-card:8px; --r-btn:6px;
}

/* ---- Reset / base ---- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:var(--font-body); font-weight:400; font-size:17px; line-height:1.65;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,svg,canvas{display:block;max-width:100%}
button{font:inherit;cursor:pointer}
::selection{background:var(--accent-14);color:#fff}

/* ---- Film-grain overlay (texture signature) ---- */
body::after{
  content:""; position:fixed; inset:0; z-index:9999; pointer-events:none;
  opacity:0.035; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='160'%20height='160'%3E%3Cfilter%20id='n'%3E%3CfeTurbulence%20type='fractalNoise'%20baseFrequency='0.85'%20numOctaves='2'%20stitchTiles='stitch'/%3E%3CfeColorMatrix%20type='saturate'%20values='0'/%3E%3C/filter%3E%3Crect%20width='160'%20height='160'%20filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---- Layout ---- */
.container{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter);width:100%}
.section{padding-block:clamp(96px,12vh,160px);position:relative}
.section + .section{border-top:1px solid var(--line)}
main{position:relative;z-index:1}

/* ---- Typography ---- */
.kicker{
  font-family:var(--font-mono); font-weight:500; font-size:12px;
  letter-spacing:0.16em; text-transform:uppercase; color:var(--faint);
  margin:0 0 22px; display:flex; align-items:center; gap:10px;
}
.kicker .idx{color:var(--accent)}
h1,h2,h3{font-family:var(--font-display);margin:0;color:var(--text)}
h1{font-weight:600;font-size:clamp(40px,6vw,76px);line-height:1.02;letter-spacing:-0.02em}
h2{font-weight:600;font-size:clamp(32px,4.4vw,48px);line-height:1.06;letter-spacing:-0.015em}
h3{font-weight:500;font-size:30px;line-height:1.12;letter-spacing:-0.01em}
.lead{font-size:20px;line-height:1.55;color:var(--muted);max-width:64ch;margin:0}
p{max-width:620px}
.h4{font-family:var(--font-body);font-weight:700;font-size:21px;line-height:1.25;letter-spacing:-0.005em;margin:0}
.metric-num{font-family:var(--font-display);font-weight:600;font-size:clamp(36px,4vw,56px);line-height:1;font-variant-numeric:tabular-nums;font-feature-settings:'tnum' 1;color:var(--text)}
.metric-label{font-family:var(--font-mono);font-weight:500;font-size:11px;letter-spacing:0.12em;text-transform:uppercase;color:var(--muted)}

/* ---- Buttons ---- */
.btn,.btn-ghost{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-body);font-weight:500;font-size:15px;border-radius:var(--r-btn);transition:transform .35s var(--ease-out-expo),background-color .26s var(--ease-out-expo),border-color .26s var(--ease-out-expo),color .26s var(--ease-out-expo)}
.btn-primary{background:var(--accent);color:var(--accent-ink);padding:13px 22px;border:1px solid var(--accent);will-change:transform}
.btn-primary:hover{background:#69b4ff;border-color:#69b4ff}
.btn-ghost{color:var(--text);padding:13px 6px}
.btn-ghost span{transition:transform .32s var(--ease-out-quint)}
.btn-ghost:hover{color:var(--accent)}
.btn-ghost:hover span{transform:translateX(4px)}
.btn-outline{display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border:1px solid var(--line-strong);border-radius:var(--r-btn);color:var(--text);font-weight:500;font-size:15px;transition:border-color .26s var(--ease-out-expo),background-color .26s var(--ease-out-expo)}
.btn-outline:hover{border-color:var(--accent);background:var(--accent-08)}
.cta-row{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:36px}

/* ---- Nav ---- */
.site-nav{position:fixed;top:0;left:0;right:0;z-index:100;height:80px;display:flex;align-items:center;border-bottom:1px solid transparent;transition:height .3s var(--ease-out-expo),background-color .3s var(--ease-out-expo),border-color .3s var(--ease-out-expo)}
.site-nav.scrolled{height:64px;background:rgba(10,11,13,0.7);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom-color:var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:600;font-size:22px;letter-spacing:-0.01em;color:var(--text)}
.brand .logo-mark{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-family:var(--font-body);font-weight:500;font-size:15px;color:var(--muted);letter-spacing:0.01em;position:relative;transition:color .2s var(--ease-out-expo),font-weight .2s}
.nav-links a:hover{color:var(--text);font-weight:600}
.nav-cta{padding:9px 18px;border:1px solid var(--line-strong);border-radius:var(--r-btn);color:var(--text);font-size:13px;font-weight:500;transition:border-color .26s,background-color .26s}
.nav-cta:hover{border-color:var(--accent);background:var(--accent-08)}
@media(max-width:860px){.nav-links{display:none}}

/* ---- Hero ---- */
.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding-top:120px;padding-bottom:0;overflow:hidden}
.mesh{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero-glow{position:absolute;top:-10%;right:-5%;width:60vw;height:60vw;max-width:760px;max-height:760px;z-index:0;pointer-events:none;background:radial-gradient(circle at 60% 40%,rgba(77,163,255,0.06),transparent 60%)}
.hero-inner{position:relative;z-index:2;padding-block:clamp(40px,8vh,90px)}
.hero-title{max-width:16ch}
.hero-lead{margin-top:26px;font-size:clamp(18px,2.2vw,21px)}
.hero-kicker{margin-bottom:26px}
.line{display:block;overflow:hidden}
.status-strip{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;margin-top:clamp(48px,7vh,90px);padding-top:20px;border-top:1px solid var(--line);font-family:var(--font-mono);font-weight:500;font-size:11px;letter-spacing:0.14em;text-transform:uppercase;color:var(--faint)}
.status-strip span:first-child{color:var(--accent-2)}

/* ---- Proof bar ---- */
.proof{padding-block:0}
.proof .container{padding-block:clamp(40px,6vh,64px)}
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr)}
.proof-cell{padding:8px 32px;border-left:1px solid var(--line)}
.proof-cell:first-child{padding-left:0;border-left:0}
.proof-cell .metric-num{display:block;margin-bottom:12px}
.proof-note{font-family:var(--font-mono);font-size:11px;letter-spacing:0.06em;color:var(--faint);margin:28px 0 0;max-width:none}
@media(max-width:720px){.proof-grid{grid-template-columns:1fr;gap:28px}.proof-cell{border-left:0;padding:0}}

/* ---- Generic grid helpers ---- */
.split{display:grid;gap:clamp(32px,5vw,72px);align-items:start}
.split-7-5{grid-template-columns:7fr 5fr}
.split-8-4{grid-template-columns:8fr 4fr}
@media(max-width:880px){.split-7-5,.split-8-4{grid-template-columns:1fr}}

/* ---- Thesis ---- */
.thesis-copy p{color:var(--muted);margin:0 0 18px}
.thesis-copy p strong{color:var(--text);font-weight:500}
.node-graph{width:100%;height:auto;color:var(--line-strong)}
.node-graph .nlabel{font-family:var(--font-mono);font-size:9.5px;letter-spacing:0.1em;text-transform:uppercase;fill:var(--muted)}
.node-graph .engine-label{font-family:var(--font-mono);font-size:11px;letter-spacing:0.12em;fill:var(--accent)}

/* ---- Cards (cells) ---- */
.cell{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;transition:border-color .26s var(--ease-out-expo),background-color .26s var(--ease-out-expo),transform .26s var(--ease-out-expo)}
.cell:hover{border-color:var(--line-strong);background:var(--surface-2);transform:translateY(-2px)}
.cell .glyph{color:var(--accent);margin-bottom:22px}
.cell .h4{margin-bottom:10px}
.cell p{color:var(--muted);font-size:15.5px;margin:0 0 18px}
.tag{display:inline-block;font-family:var(--font-mono);font-weight:500;font-size:11px;letter-spacing:0.1em;text-transform:uppercase;color:var(--faint);border:1px solid var(--line);border-radius:999px;padding:5px 11px}

.cols-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:880px){.cols-3{grid-template-columns:1fr}}

/* ---- Bento (products) ---- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:48px}
@media(max-width:880px){.bento{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.bento{grid-template-columns:1fr}}
.product .pidx{font-family:var(--font-mono);font-size:11px;letter-spacing:0.1em;color:var(--faint);display:block;margin-bottom:20px}
.product .pname{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.product .pname .h4{font-size:19px}
.product .prole{color:var(--muted);font-size:14.5px;margin:0}
.status-dot{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:10px;letter-spacing:0.1em;text-transform:uppercase;color:var(--muted);margin-left:auto}
.status-dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--faint)}
.status-dot.live{color:var(--accent-2)}
.status-dot.live::before{background:var(--accent-2)}
.platform-lockup{font-family:var(--font-mono);font-size:12px;letter-spacing:0.12em;text-transform:uppercase;color:var(--faint);margin-top:28px}
.platform-lockup b{color:var(--text);font-weight:500}

/* ---- Case study ---- */
.case-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:clamp(28px,4vw,52px)}
.case-quote{font-family:var(--font-display);font-weight:500;font-size:clamp(22px,2.6vw,30px);line-height:1.3;letter-spacing:-0.01em;color:var(--text);margin:0;max-width:24ch}
.case-quote b{color:var(--accent);font-weight:600}
.case-rail{display:flex;flex-direction:column;gap:28px;border-left:1px solid var(--line);padding-left:32px}
.case-rail .metric-num{font-size:clamp(30px,3vw,40px);display:block}
@media(max-width:880px){.case-rail{border-left:0;padding-left:0;flex-direction:row;flex-wrap:wrap;gap:32px}}

/* ---- Government / capability ---- */
.badge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-bottom:40px}
.badge{padding:22px 24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);font-family:var(--font-mono);font-weight:500;font-size:13px;letter-spacing:0.06em;color:var(--text);display:flex;align-items:center;min-height:78px}
.badge .blk{color:var(--accent)}
.badge .sub{display:block;font-size:10px;letter-spacing:0.1em;text-transform:uppercase;color:var(--faint);margin-top:4px}
@media(max-width:760px){.badge-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.badge-grid{grid-template-columns:1fr}}
.competencies{list-style:none;padding:0;margin:0 0 36px;display:grid;grid-template-columns:1fr 1fr;gap:14px 32px;max-width:none}
.competencies li{position:relative;padding-left:22px;color:var(--muted);font-size:16px}
.competencies li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:1px;background:var(--accent)}
@media(max-width:680px){.competencies{grid-template-columns:1fr}}
.gov-note{font-family:var(--font-mono);font-size:11px;letter-spacing:0.05em;color:var(--faint);margin:24px 0 0;max-width:none}

/* ---- Team ---- */
.team-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:760px){.team-grid{grid-template-columns:1fr}}
.founder{display:flex;gap:22px;align-items:flex-start}
.monogram{flex:0 0 auto;width:56px;height:56px;border:1px solid var(--line-strong);border-radius:var(--r-card);display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-weight:500;font-size:16px;letter-spacing:0.04em;color:var(--accent)}
.founder .fname{font-family:var(--font-display);font-weight:500;font-size:22px;letter-spacing:-0.01em;margin:0 0 6px}
.founder .frole{font-family:var(--font-mono);font-size:10.5px;letter-spacing:0.12em;text-transform:uppercase;color:var(--faint);margin:0 0 12px}
.founder .fbio{color:var(--muted);font-size:15px;margin:0}

/* ---- Contact ---- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:760px){.contact-grid{grid-template-columns:1fr}}
.contact-card{display:flex;flex-direction:column;gap:16px}
.contact-card .ctitle{font-family:var(--font-display);font-weight:500;font-size:24px;letter-spacing:-0.01em;margin:0}
.contact-card p{color:var(--muted);font-size:15.5px;margin:0;flex:1}
.contact-card .poc{font-family:var(--font-mono);font-size:11px;letter-spacing:0.06em;color:var(--faint)}

/* ---- Footer ---- */
.footer{border-top:1px solid var(--line);padding-block:64px 40px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:48px}
@media(max-width:760px){.footer-top{grid-template-columns:1fr;gap:32px}}
.footer .brand{margin-bottom:14px}
.footer-decode{font-family:var(--font-mono);font-size:11px;letter-spacing:0.14em;text-transform:uppercase;color:var(--faint)}
.footer-col h5{font-family:var(--font-mono);font-weight:500;font-size:11px;letter-spacing:0.12em;text-transform:uppercase;color:var(--faint);margin:0 0 16px}
.footer-col a{display:block;color:var(--muted);font-size:15px;margin-bottom:10px;transition:color .2s}
.footer-col a:hover{color:var(--text)}
.footer-meta{border-top:1px solid var(--line);padding-top:24px;display:flex;flex-wrap:wrap;gap:8px 18px;font-family:var(--font-mono);font-size:11px;letter-spacing:0.06em;color:var(--faint)}
.footer-meta .blk{color:var(--accent)}
.footer-copy{font-family:var(--font-mono);font-size:11px;letter-spacing:0.06em;color:var(--faint);margin-top:18px}

/* ---- Section divider draw-in ---- */
.divider{height:1px;background:var(--line);transform:scaleX(0);transform-origin:left;transition:transform .6s var(--ease-out-quint)}
.divider.in{transform:scaleX(1)}

/* ---- Reveal / motion (progressive enhancement) ---- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .7s var(--ease-out-quint),transform .7s var(--ease-out-quint);transition-delay:calc(var(--i,0)*70ms)}
.js .reveal.in{opacity:1;transform:none}

/* ---- Hero clip-reveal + fades (only under .js) ---- */
.js .hero .line .inner{display:block;transform:translateY(110%);animation:lineUp .9s var(--ease-out-expo) both}
.js .hero-title .line:nth-child(1) .inner{animation-delay:.15s}
.js .hero-title .line:nth-child(2) .inner{animation-delay:.24s}
.js .hero-kicker,.js .hero-lead,.js .hero .cta-row,.js .status-strip{opacity:0;animation:fadeUp .8s var(--ease-out-expo) both}
.js .hero-kicker{animation-delay:.05s}
.js .hero-lead{animation-delay:.5s}
.js .hero .cta-row{animation-delay:.62s}
.js .status-strip{animation-delay:.72s}
@keyframes lineUp{from{transform:translateY(110%)}to{transform:translateY(0)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/* ---- Focus ---- */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}

/* ---- Reduced motion gate ---- */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .reveal{opacity:1!important;transform:none!important}
  .js .hero .line .inner,.js .hero-kicker,.js .hero-lead,.js .hero .cta-row,.js .status-strip{opacity:1!important;transform:none!important}
  .divider{transform:scaleX(1)!important}
}