/* ============================================================
   DIVERSE SYNERGY — Firewall Engineering Console
   Design system + layout
   Display: Space Grotesk · Body: Inter · Data: Space Mono
   ============================================================ */

/* ---------- Fonts (self-hosted) ---------- */
@font-face{
  font-family:'Space Grotesk';
  font-style:normal; font-weight:300 700; font-display:swap;
  src:url('../fonts/space-grotesk.woff2') format('woff2');
}
@font-face{
  font-family:'Inter';
  font-style:normal; font-weight:400 600; font-display:swap;
  src:url('../fonts/inter.woff2') format('woff2');
}
@font-face{
  font-family:'Space Mono';
  font-style:normal; font-weight:400; font-display:swap;
  src:url('../fonts/space-mono.woff2') format('woff2');
}

/* ---------- Tokens ---------- */
:root{
  --void:#05070E;
  --abyss:#0A0F1C;
  --steel:#12192B;
  --steel-2:#1A2338;
  --ice:#E7EFFF;
  --slate:#8A9BB8;
  --slate-dim:#5D6C86;

  --cyan:#38E0FF;
  --cyan-deep:#12A6C9;
  --azure:#4C7BFF;
  --breach:#FF3B6B;
  --amber:#FFB63D;

  --glass:rgba(18,25,43,.42);
  --glass-hi:rgba(30,42,70,.55);
  --hair:rgba(120,150,200,.16);
  --hair-hi:rgba(120,180,255,.34);

  --shadow:0 24px 70px -30px rgba(0,0,0,.85);
  --glow-cyan:0 0 0 1px rgba(56,224,255,.30), 0 0 30px -6px rgba(56,224,255,.55);

  --ff-display:'Space Grotesk', ui-sans-serif, system-ui, sans-serif;
  --ff-body:'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --ff-mono:'Space Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --ease:cubic-bezier(.16,1,.3,1);        /* expo-out feel */
  --ease-io:cubic-bezier(.65,.05,.36,1);

  --rail:56px;      /* side telemetry rail width */
  --pad:clamp(20px,5vw,80px);
  --maxw:1320px;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{ -webkit-text-size-adjust:100%; scroll-behavior:auto }
body{
  margin:0;
  font-family:var(--ff-body);
  background:var(--void);
  color:var(--ice);
  line-height:1.6;
  font-size:clamp(15px,1.05vw,17px);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:none}
h1,h2,h3,h4{margin:0;font-family:var(--ff-display);font-weight:500;line-height:1.02;letter-spacing:-.02em}
p{margin:0}
::selection{background:rgba(56,224,255,.28);color:#fff}

/* Focus visibility (a11y floor) */
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px}

/* ---------- Background canvas ---------- */
#bg-canvas{
  position:fixed;inset:0;width:100%;height:100%;
  z-index:0;display:block;
  background:
    radial-gradient(120% 90% at 78% 8%, rgba(76,123,255,.10), transparent 55%),
    radial-gradient(90% 70% at 12% 100%, rgba(56,224,255,.08), transparent 60%),
    var(--void);
}
/* Vignette + grain overlay above canvas, below content */
.atmos{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(130% 100% at 50% 40%, transparent 55%, rgba(2,4,10,.72) 100%);
  mix-blend-mode:normal;
}
.scanline{
  position:fixed;left:0;right:0;height:2px;z-index:2;pointer-events:none;
  background:linear-gradient(90deg,transparent, rgba(56,224,255,.55), transparent);
  opacity:.5; top:0;
  box-shadow:0 0 18px 2px rgba(56,224,255,.35);
  will-change:transform;
}

/* ---------- Console frame: side telemetry rails ---------- */
.rail{
  position:fixed;top:0;bottom:0;width:var(--rail);z-index:6;
  display:flex;flex-direction:column;align-items:center;justify-content:space-between;
  padding:18px 0;pointer-events:none;
  font-family:var(--ff-mono);font-size:10px;letter-spacing:.18em;color:var(--slate-dim);
}
.rail--l{left:0;border-right:1px solid var(--hair)}
.rail--r{right:0;border-left:1px solid var(--hair);align-items:center}
.rail__v{writing-mode:vertical-rl;text-orientation:mixed;white-space:nowrap;text-transform:uppercase}
.rail--r .rail__v{transform:rotate(180deg)}
.rail__tick{width:1px;flex:1;margin:12px 0;background:linear-gradient(var(--hair),transparent)}
.rail__led{width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 10px var(--cyan);animation:led 2.6s var(--ease-io) infinite}
@keyframes led{0%,100%{opacity:.35}50%{opacity:1}}

/* corner brackets */
.corner{position:fixed;width:26px;height:26px;z-index:6;pointer-events:none;border-color:var(--hair-hi);border-style:solid;border-width:0}
.corner--tl{top:12px;left:calc(var(--rail) + 10px);border-left-width:1px;border-top-width:1px}
.corner--tr{top:12px;right:calc(var(--rail) + 10px);border-right-width:1px;border-top-width:1px}
.corner--bl{bottom:12px;left:calc(var(--rail) + 10px);border-left-width:1px;border-bottom-width:1px}
.corner--br{bottom:12px;right:calc(var(--rail) + 10px);border-right-width:1px;border-bottom-width:1px}

/* ---------- Shell / content column ---------- */
.shell{position:relative;z-index:5;padding:0 var(--rail)}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}

/* ---------- Navigation ---------- */
.nav{
  position:fixed;top:14px;left:50%;transform:translateX(-50%);
  z-index:20;width:min(1180px,calc(100vw - (var(--rail) + 24px)*2));
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:11px 14px 11px 20px;border-radius:16px;
  background:linear-gradient(180deg,rgba(20,28,48,.66),rgba(10,15,28,.55));
  border:1px solid var(--hair);backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow);
  transition:transform .5s var(--ease),opacity .5s var(--ease);
}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--ff-display);font-weight:500;letter-spacing:-.01em}
.brand__mark{width:30px;height:30px;flex:none}
.brand__name{font-size:15px;line-height:1}
.brand__sub{display:block;font-family:var(--ff-mono);font-size:9px;letter-spacing:.24em;color:var(--slate);margin-top:3px}
.nav__links{display:flex;gap:26px;align-items:center;font-family:var(--ff-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--slate)}
.nav__links a{position:relative;padding:4px 0;transition:color .3s var(--ease)}
.nav__links a::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:1px;background:var(--cyan);transition:right .35s var(--ease)}
.nav__links a:hover{color:var(--ice)}
.nav__links a:hover::after{right:0}
.nav__cta{font-family:var(--ff-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  padding:9px 16px;border-radius:10px;color:var(--void);background:var(--cyan);white-space:nowrap;
  box-shadow:var(--glow-cyan);transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.nav__cta:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(56,224,255,.5),0 0 40px -6px rgba(56,224,255,.8)}
.nav__burger{display:none}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--ff-mono);font-size:12px;
  letter-spacing:.12em;text-transform:uppercase;padding:15px 24px;border-radius:12px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .35s var(--ease),color .35s var(--ease)}
.btn--primary{background:var(--cyan);color:var(--void);box-shadow:var(--glow-cyan)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,224,255,.55),0 14px 46px -10px rgba(56,224,255,.75)}
.btn--ghost{background:rgba(20,28,48,.4);color:var(--ice);border:1px solid var(--hair-hi);backdrop-filter:blur(8px)}
.btn--ghost:hover{transform:translateY(-2px);border-color:var(--cyan);color:var(--cyan)}
.btn__dot{width:7px;height:7px;border-radius:50%;background:currentColor;box-shadow:0 0 10px currentColor}

/* ---------- Eyebrow / labels ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--ff-mono);font-size:11px;
  letter-spacing:.28em;text-transform:uppercase;color:var(--cyan)}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);opacity:.7}
.eyebrow--dim{color:var(--slate)}
.eyebrow--dim::before{background:var(--slate)}

/* ---------- Section rhythm ---------- */
.section{position:relative;padding-block:clamp(96px,14vh,180px)}
.section--tight{padding-block:clamp(64px,9vh,120px)}
.section__index{font-family:var(--ff-mono);font-size:11px;letter-spacing:.2em;color:var(--slate-dim)}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;
  padding-top:120px;padding-bottom:60px}
.hero__eyebrow{margin-bottom:26px}
.hero__title{
  font-size:clamp(2.9rem,8.2vw,7.4rem);font-weight:400;letter-spacing:-.035em;line-height:.96;
  max-width:16ch;
}
.hero__title em{font-style:normal;color:var(--cyan);
  text-shadow:0 0 34px rgba(56,224,255,.45)}
.hero__title .thin{color:var(--slate)}
.hero__sub{margin-top:30px;max-width:52ch;color:var(--slate);font-size:clamp(1rem,1.5vw,1.22rem);line-height:1.65}
.hero__sub b{color:var(--ice);font-weight:500}
.hero__cta{margin-top:40px;display:flex;gap:16px;flex-wrap:wrap}
.hero__chips{margin-top:52px;display:flex;gap:14px;flex-wrap:wrap}
.chip{display:flex;align-items:center;gap:10px;padding:11px 16px;border-radius:12px;
  background:var(--glass);border:1px solid var(--hair);backdrop-filter:blur(10px);
  font-family:var(--ff-mono);font-size:11px;letter-spacing:.1em;color:var(--slate)}
.chip b{color:var(--ice);font-weight:400}
.chip__k{color:var(--cyan)}

.hero__scroll{position:absolute;left:var(--pad);bottom:26px;display:flex;align-items:center;gap:12px;
  font-family:var(--ff-mono);font-size:10px;letter-spacing:.24em;color:var(--slate-dim);text-transform:uppercase}
.hero__scroll .bar{width:44px;height:1px;background:var(--hair-hi);position:relative;overflow:hidden}
.hero__scroll .bar::after{content:"";position:absolute;inset:0;width:40%;background:var(--cyan);animation:swipe 2.4s var(--ease-io) infinite}
@keyframes swipe{0%{transform:translateX(-120%)}100%{transform:translateX(320%)}}

/* ---------- Stat strip ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--hair);
  border:1px solid var(--hair);border-radius:18px;overflow:hidden;backdrop-filter:blur(8px)}
.stat{background:linear-gradient(180deg,rgba(16,22,40,.6),rgba(9,13,25,.5));padding:30px 26px}
.stat__n{font-family:var(--ff-display);font-size:clamp(2.2rem,4.4vw,3.4rem);line-height:1;letter-spacing:-.03em;color:var(--ice)}
.stat__n span{color:var(--cyan)}
.stat__l{margin-top:12px;font-family:var(--ff-mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--slate)}

/* ---------- Chapter (big narrative block) ---------- */
.chapter{display:grid;grid-template-columns:1fr;gap:28px}
.chapter__head{max-width:22ch}
.chapter__title{font-size:clamp(2rem,5vw,4rem);letter-spacing:-.03em;line-height:1}
.chapter__title span{color:var(--cyan)}
.chapter__body{max-width:56ch;color:var(--slate);font-size:clamp(1rem,1.35vw,1.15rem)}
.chapter__body p+p{margin-top:16px}
.chapter__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(30px,5vw,90px);align-items:center}
.chapter__aside{display:flex;flex-direction:column;gap:14px}

/* telemetry readout card (glass) */
.readout{background:var(--glass);border:1px solid var(--hair);border-radius:16px;padding:22px 24px;
  backdrop-filter:blur(14px) saturate(140%);box-shadow:var(--shadow)}
.readout__row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:11px 0;
  font-family:var(--ff-mono);font-size:12px;border-bottom:1px dashed var(--hair)}
.readout__row:last-child{border-bottom:0}
.readout__k{color:var(--slate);letter-spacing:.08em}
.readout__val{color:var(--ice)}
.readout__val--ok{color:var(--cyan)}
.readout__val--warn{color:var(--breach)}
.readout__meter{height:5px;border-radius:3px;background:rgba(120,150,200,.14);overflow:hidden;flex:1;max-width:120px}
.readout__meter i{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),var(--azure));border-radius:3px}

/* ---------- Services grid ---------- */
.svc{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{position:relative;padding:30px 28px 34px;border-radius:18px;overflow:hidden;
  background:linear-gradient(180deg,rgba(18,25,44,.55),rgba(10,14,26,.5));
  border:1px solid var(--hair);backdrop-filter:blur(12px);
  transition:transform .5s var(--ease),border-color .5s var(--ease),box-shadow .5s var(--ease)}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(180deg,rgba(56,224,255,.35),transparent 40%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .5s var(--ease)}
.card:hover{transform:translateY(-6px);border-color:var(--hair-hi);box-shadow:var(--shadow)}
.card:hover::before{opacity:1}
.card__idx{font-family:var(--ff-mono);font-size:11px;letter-spacing:.18em;color:var(--cyan)}
.card__ico{width:42px;height:42px;margin:16px 0 20px;color:var(--cyan)}
.card__t{font-size:1.32rem;letter-spacing:-.02em;margin-bottom:10px}
.card__d{color:var(--slate);font-size:.96rem;line-height:1.6}
.card--wide{grid-column:span 3;display:grid;grid-template-columns:auto 1fr auto;gap:26px;align-items:center;padding:26px 30px}
.card--wide .card__t{margin-bottom:6px}

/* ---------- Manifesto (oversized statement) ---------- */
.manifesto{position:relative}
.manifesto__q{font-family:var(--ff-display);font-weight:300;letter-spacing:-.03em;line-height:1.04;
  font-size:clamp(1.9rem,5.2vw,4.3rem);max-width:20ch}
.manifesto__q b{font-weight:500;color:var(--cyan)}
.manifesto__q u{text-decoration:none;color:var(--ice);border-bottom:2px solid rgba(255,59,107,.6)}
.manifesto__by{margin-top:34px;font-family:var(--ff-mono);font-size:12px;letter-spacing:.16em;color:var(--slate);text-transform:uppercase}

/* ---------- Process / sequence ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:step}
.step{position:relative;padding:24px 20px 26px;border-radius:16px;background:var(--glass);
  border:1px solid var(--hair);backdrop-filter:blur(10px)}
.step__n{font-family:var(--ff-mono);font-size:11px;color:var(--slate-dim);letter-spacing:.2em}
.step__t{margin:14px 0 8px;font-size:1.18rem;letter-spacing:-.01em}
.step__d{font-size:.9rem;color:var(--slate);line-height:1.55}
.step__bar{position:absolute;left:0;top:0;height:2px;width:100%;
  background:linear-gradient(90deg,var(--cyan),transparent)}

/* ---------- Contact ---------- */
.contact{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(30px,5vw,70px);align-items:start}
.contact__panel{background:linear-gradient(180deg,rgba(18,25,44,.6),rgba(9,13,25,.55));
  border:1px solid var(--hair);border-radius:22px;padding:clamp(26px,4vw,44px);
  backdrop-filter:blur(16px) saturate(150%);box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-family:var(--ff-mono);font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--slate);margin-bottom:8px}
.field input,.field textarea,.field select{
  width:100%;padding:14px 16px;border-radius:11px;color:var(--ice);
  background:rgba(6,9,16,.6);border:1px solid var(--hair);font:inherit;font-size:.95rem;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease)}
.field textarea{min-height:118px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,224,255,.14)}
.field input::placeholder,.field textarea::placeholder{color:var(--slate-dim)}
.contact__meta{display:flex;flex-direction:column;gap:22px}
.contact__line{display:flex;flex-direction:column;gap:6px}
.contact__k{font-family:var(--ff-mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--slate)}
.contact__v{font-family:var(--ff-display);font-size:clamp(1.3rem,2.4vw,1.8rem);letter-spacing:-.02em}
.contact__v a:hover{color:var(--cyan)}
.form-note{margin-top:6px;font-family:var(--ff-mono);font-size:10.5px;color:var(--slate-dim);letter-spacing:.06em}

/* ---------- Footer ---------- */
.footer{position:relative;z-index:5;border-top:1px solid var(--hair);margin-top:40px;
  padding:46px 0 40px}
.footer__grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
.footer__brand{max-width:34ch;color:var(--slate);font-size:.92rem}
.footer__cols{display:flex;gap:60px;flex-wrap:wrap;font-family:var(--ff-mono);font-size:12px}
.footer__cols h5{font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--slate-dim);margin:0 0 14px;font-family:var(--ff-mono);font-weight:400}
.footer__cols a{display:block;color:var(--slate);padding:5px 0;letter-spacing:.04em}
.footer__cols a:hover{color:var(--cyan)}
.footer__bar{margin-top:40px;padding-top:20px;border-top:1px solid var(--hair);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-family:var(--ff-mono);font-size:10.5px;letter-spacing:.1em;color:var(--slate-dim)}
.footer__status{display:flex;align-items:center;gap:9px}
.footer__status i{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);animation:led 2.6s var(--ease-io) infinite}

/* ---------- Boot overlay (page-load sequence) ---------- */
.boot{position:fixed;inset:0;z-index:60;background:var(--void);display:none;align-items:center;justify-content:center;
  flex-direction:column;gap:20px;font-family:var(--ff-mono);transition:opacity .6s var(--ease)}
.js .boot{display:flex}
.boot.is-done{opacity:0;pointer-events:none}
.boot__log{font-size:12px;letter-spacing:.06em;color:var(--slate);min-height:20px;text-align:center}
.boot__log b{color:var(--cyan)}
.boot__bar{width:min(320px,60vw);height:2px;background:rgba(120,150,200,.16);overflow:hidden}
.boot__bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--azure))}
.boot__brand{font-family:var(--ff-display);font-size:14px;letter-spacing:.3em;color:var(--slate-dim);text-transform:uppercase}

/* ---------- Reveal states (only when JS active) ---------- */
.js [data-reveal]{opacity:0;will-change:transform,opacity}
.js [data-reveal="up"]{transform:translateY(34px)}
.js [data-reveal="fade"]{transform:none}
.js .word{display:inline-block;opacity:0;transform:translateY(0.5em)}
.js .line-mask{display:block;overflow:hidden}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  :root{--rail:34px}
  .chapter__grid,.contact{grid-template-columns:1fr;gap:34px}
  .svc{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .card--wide{grid-template-columns:1fr;gap:14px}
  .nav__links{display:none}
}
@media (max-width:680px){
  :root{--rail:0px}
  .rail,.corner{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .svc{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .nav{width:calc(100vw - 24px);padding:10px 12px 10px 16px}
  .nav__cta{display:none}
  .nav__burger{display:inline-flex}
  .hero{padding-top:110px}
  .footer__bar{flex-direction:column;gap:6px}
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;scroll-behavior:auto!important}
  .js [data-reveal],.js .word{opacity:1!important;transform:none!important}
  .scanline,.hero__scroll .bar::after{display:none}
}