/* ============================================================
   RoIntelliA.com — "Signal Architecture" design system
   ============================================================ */
:root{
  --ink:#0A0E14;--ink-soft:#121823;--bone:#EDE8DD;--bone-dim:#D8D2C4;
  --signal:#FF4D2E;--cobalt:#2B5BFF;--cobalt-soft:#7FA0FF;
  --gold:#C5A059;--graphite:#5A6473;--mist:#C7CDD6;
  --line:rgba(199,205,214,.14);--line-strong:rgba(199,205,214,.28);
  --display:'Space Grotesk',system-ui,sans-serif;
  --serif:'Newsreader',Georgia,serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --maxw:1280px;--gut:clamp(20px,5vw,80px);--radius:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--ink);color:var(--bone);font-family:var(--display);font-size:17px;line-height:1.6;letter-spacing:-.01em;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:var(--signal);color:var(--ink)}
.mono{font-family:var(--mono);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--graphite);font-weight:500}
.serif{font-family:var(--serif);font-weight:400}
em{font-family:var(--serif);font-style:italic;color:var(--cobalt-soft)}
h1,h2,h3{font-weight:600;line-height:1.02;letter-spacing:-.03em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut)}

.grid-overlay{position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:clamp(40px,8vw,90px) clamp(40px,8vw,90px);
  mask-image:radial-gradient(ellipse 120% 80% at 50% 0%,#000 30%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 120% 80% at 50% 0%,#000 30%,transparent 80%);}

/* NAV */
.nav{position:fixed;top:var(--ria-alert-h,0px);left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:18px var(--gut);transition:background .4s var(--ease),border-color .4s var(--ease),padding .4s var(--ease);
  border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(10,14,20,.82);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:11px;font-weight:600;font-size:1.05rem;letter-spacing:-.02em}
.brand-mark{width:30px;height:30px;flex:none}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-size:.82rem;font-weight:500;color:var(--mist);position:relative;transition:color .3s var(--ease)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-5px;width:0;height:1px;background:var(--signal);transition:width .35s var(--ease)}
.nav-links a:hover{color:var(--bone)}
.nav-links a:hover::after{width:100%}
.nav-cta{font-size:.8rem;font-weight:600;padding:9px 18px;border:1px solid var(--line-strong);border-radius:var(--radius);color:var(--bone);transition:all .3s var(--ease)}
.nav-cta:hover{background:var(--signal);border-color:var(--signal);color:var(--ink)}
.lang-switch{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em}
.lang-switch a{color:var(--graphite);transition:color .3s var(--ease)}
.lang-switch a.on{color:var(--bone)}
.lang-switch a:hover{color:var(--signal)}
.lang-switch a::after{display:none}
.lang-sep{color:var(--graphite);opacity:.5}
.burger{display:none;width:26px;height:18px;position:relative}
.burger span{position:absolute;left:0;width:100%;height:2px;background:var(--bone);transition:.3s var(--ease)}
.burger span:nth-child(1){top:0}.burger span:nth-child(2){top:8px}.burger span:nth-child(3){top:16px}
.burger.open span:nth-child(1){top:8px;transform:rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){top:8px;transform:rotate(-45deg)}

/* HERO */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding-top:calc(120px + var(--ria-alert-h,0px));padding-bottom:80px;z-index:1;overflow:hidden}
#signal-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.9}
.hero .wrap{position:relative;z-index:2;width:100%}
.hero-eyebrow{display:flex;align-items:center;gap:14px;margin-bottom:34px;opacity:0;animation:rise .9s var(--ease) .2s forwards}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--signal);box-shadow:0 0 14px var(--signal);animation:pulse 2.4s ease-in-out infinite}
.hero h1{font-size:clamp(2.7rem,8vw,6.4rem);line-height:.96;letter-spacing:-.04em;max-width:16ch}
.hero h1 .line{display:block;overflow:hidden}
.hero h1 .line span{display:inline-block;transform:translateY(110%);animation:slideUp 1s var(--ease) forwards}
.hero h1 .line:nth-child(1) span{animation-delay:.35s}
.hero h1 .line:nth-child(2) span{animation-delay:.48s}
.hero h1 .line:nth-child(3) span{animation-delay:.61s}
.hero-sub{margin-top:32px;max-width:48ch;font-size:clamp(1rem,1.6vw,1.2rem);color:var(--mist);line-height:1.65;opacity:0;animation:rise .9s var(--ease) .9s forwards}
.hero-actions{margin-top:42px;display:flex;gap:16px;flex-wrap:wrap;opacity:0;animation:rise .9s var(--ease) 1.05s forwards}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 26px;border-radius:var(--radius);font-weight:600;font-size:.92rem;transition:all .35s var(--ease)}
.btn-primary{background:var(--signal);color:var(--ink)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px -12px rgba(255,77,46,.6)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--bone)}
.btn-ghost:hover{border-color:var(--bone);background:rgba(237,232,221,.04)}
.btn .arrow{transition:transform .35s var(--ease)}
.btn:hover .arrow{transform:translate(4px,-4px)}
.hero-meta{position:absolute;bottom:42px;left:var(--gut);right:var(--gut);z-index:2;display:flex;justify-content:space-between;align-items:flex-end;gap:30px;opacity:0;animation:rise .9s var(--ease) 1.3s forwards}
.hero-meta .scroll-hint{display:flex;align-items:center;gap:10px}
.hero-meta .scroll-hint .bar{width:42px;height:1px;background:var(--graphite);position:relative;overflow:hidden}
.hero-meta .scroll-hint .bar::after{content:"";position:absolute;inset:0;background:var(--signal);animation:scan 2.4s var(--ease) infinite}
.hero-coords{text-align:right}

/* SECTIONS */
section{position:relative;z-index:1}
.section{padding:clamp(80px,12vw,160px) 0}
.section-head{margin-bottom:64px;max-width:60ch}
.section-head .label{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.section-head .label .idx{color:var(--signal)}
.section-head h2{font-size:clamp(1.9rem,4.5vw,3.4rem);letter-spacing:-.035em;line-height:1.04}
.section-head p{margin-top:22px;color:var(--mist);font-size:1.08rem;max-width:54ch}

.manifesto{padding:clamp(90px,14vw,180px) 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,transparent,rgba(43,91,255,.03),transparent)}
.manifesto blockquote{font-family:var(--serif);font-weight:400;font-size:clamp(1.7rem,4.2vw,3.2rem);line-height:1.22;letter-spacing:-.02em;max-width:24ch}
.manifesto blockquote .hl{color:var(--signal);font-style:italic}
.manifesto cite{display:block;margin-top:34px;font-style:normal}

/* PILLARS */
.pillars{display:flex;flex-direction:column;border-top:1px solid var(--line-strong)}
.pillar{display:grid;grid-template-columns:90px 1fr auto;gap:40px;align-items:center;padding:38px 0;border-bottom:1px solid var(--line);position:relative;transition:padding .4s var(--ease);cursor:pointer}
.pillar::before{content:"";position:absolute;left:-100vw;right:-100vw;top:0;bottom:0;
  background:linear-gradient(90deg,transparent,rgba(43,91,255,.05) 40%,rgba(43,91,255,.05) 60%,transparent);
  opacity:0;transition:opacity .4s var(--ease);z-index:-1}
.pillar:hover::before{opacity:1}
.pillar:hover{padding-left:18px}
.pillar .p-idx{font-family:var(--mono);font-size:.8rem;color:var(--graphite);transition:color .4s var(--ease)}
.pillar:hover .p-idx{color:var(--signal)}
.pillar .p-body h3{font-size:clamp(1.4rem,3vw,2.1rem);margin-bottom:10px;transition:transform .4s var(--ease)}
.pillar:hover .p-body h3{transform:translateX(6px)}
.pillar .p-body p{color:var(--mist);font-size:.98rem;max-width:56ch}
.pillar .p-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.pillar .p-tags span{font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--graphite);border:1px solid var(--line);padding:4px 9px;border-radius:var(--radius)}
.pillar .p-go{width:52px;height:52px;border:1px solid var(--line-strong);border-radius:50%;display:grid;place-items:center;transition:all .4s var(--ease);flex:none}
.pillar:hover .p-go{background:var(--signal);border-color:var(--signal);color:var(--ink);transform:rotate(45deg)}

/* PROCESS */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.step{padding:34px 28px;border-right:1px solid var(--line);position:relative;transition:background .4s var(--ease)}
.step:last-child{border-right:none}
.step:hover{background:var(--ink-soft)}
.step .s-no{font-family:var(--mono);font-size:.72rem;color:var(--signal);margin-bottom:28px;display:block}
.step h4{font-size:1.18rem;margin-bottom:10px;font-weight:600}
.step p{font-size:.9rem;color:var(--mist);line-height:1.55}
.step .s-line{position:absolute;top:0;left:0;height:2px;width:0;background:var(--cobalt);transition:width .6s var(--ease)}
.step.in .s-line{width:100%}

/* STATS */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gut);border-top:1px solid var(--line);padding-top:64px}
.stat .n{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:600;letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums}
.stat .n .unit{color:var(--signal);font-size:.5em}
.stat .lbl{margin-top:14px;color:var(--mist);font-size:.92rem;max-width:24ch}

/* CTA FINAL */
.cta-final{padding:clamp(90px,14vw,180px) 0;text-align:center;position:relative;overflow:hidden}
.cta-final h2{font-size:clamp(2.2rem,7vw,5rem);letter-spacing:-.04em;line-height:1;max-width:18ch;margin:0 auto}
.cta-final .btn{margin-top:42px}
.cta-final .glow{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:80vw;height:80vw;max-width:900px;max-height:900px;background:radial-gradient(circle,rgba(255,77,46,.10),transparent 60%);pointer-events:none}

/* FOOTER */
footer{border-top:1px solid var(--line);padding:70px 0 40px;position:relative;z-index:1}
.foot-top{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:54px;border-bottom:1px solid var(--line)}
.foot-col h5{font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--graphite);margin-bottom:20px}
.foot-col a{display:block;color:var(--mist);font-size:.92rem;margin-bottom:11px;transition:color .3s var(--ease)}
.foot-col a:hover{color:var(--signal)}
.foot-brand p{color:var(--mist);max-width:34ch;margin-top:18px;font-size:.95rem}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:28px;flex-wrap:wrap}
.foot-bottom .mono{font-size:.66rem}

/* REVEAL */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}

@keyframes rise{to{opacity:1;transform:none}}
@keyframes slideUp{to{transform:none}}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
@keyframes scan{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}

/* RESPONSIVE */
@media(max-width:980px){
  .foot-top{grid-template-columns:1fr 1fr}
  .process{grid-template-columns:1fr 1fr}
  .step:nth-child(2){border-right:none}
  .step:nth-child(1),.step:nth-child(2){border-bottom:1px solid var(--line)}
  .stats{grid-template-columns:1fr 1fr;gap:40px}
}
@media(max-width:760px){
  body{font-size:16px}
  .nav-links{position:fixed;inset:0;background:rgba(10,14,20,.97);backdrop-filter:blur(20px);flex-direction:column;justify-content:center;gap:30px;transform:translateX(100%);transition:transform .5s var(--ease);z-index:99}
  .nav-links.open{transform:none}
  .nav-links a{font-size:1.3rem}
  .nav-links .nav-cta{font-size:1rem;padding:12px 24px}
  .burger{display:block;z-index:101}
  .pillar{grid-template-columns:40px 1fr;gap:18px}
  .pillar .p-go{display:none}
  .process{grid-template-columns:1fr}
  .step{border-right:none;border-bottom:1px solid var(--line)}
  .stats{grid-template-columns:1fr 1fr;gap:34px}
  .foot-top{grid-template-columns:1fr}
  .hero{min-height:auto}
  .hero-meta{position:static;flex-direction:column;align-items:flex-start;gap:14px;margin-top:48px}
  .hero-coords{text-align:left}
}
@media(max-width:600px){
  body{font-size:15.5px}
  :root{--gut:18px}
  .hero{padding-top:calc(104px + var(--ria-alert-h,0px))}
  .section{padding:64px 0}
  .btn{padding:14px 22px;font-size:.88rem}
  .hero-actions .btn{flex:1 1 auto;justify-content:center}
}
@media(max-width:400px){
  body{font-size:15px}
  :root{--gut:14px}
  .hero h1{font-size:clamp(2rem,12vw,2.7rem)}
  .brand{font-size:.95rem;gap:8px}
  .brand-mark{width:26px;height:26px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media(max-height:560px) and (orientation:landscape){
  .hero{min-height:auto;padding-top:calc(96px + var(--ria-alert-h,0px));padding-bottom:56px}
  .hero-meta{position:static;margin-top:36px}
}
@media(hover:none) and (pointer:coarse){
  .pillar:hover{padding-left:0}
  .pillar:hover .p-body h3{transform:none}
  .pillar:hover .p-go{transform:none;background:none;border-color:var(--line-strong);color:inherit}
  .nav-links a,.btn{min-height:44px}
  .nav-links a{display:flex;align-items:center}
}
@media(prefers-contrast:more){
  :root{--line:rgba(199,205,214,.32);--line-strong:rgba(199,205,214,.5);--mist:#E2E6EC}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .hero h1 .line span{transform:none}
  .reveal{opacity:1;transform:none}
}
@media print{
  body{background:#fff;color:#111}
  .grid-overlay,#signal-canvas,.nav{display:none!important}
  .reveal{opacity:1!important;transform:none!important}
  a{color:#111;text-decoration:underline}
}

/* ============================================================
   SECURITY NOTICE — fraudulent calls (spoofing)
   Fixed strip above the nav. --ria-alert-h is measured in JS and
   offsets .nav and the hero padding. Remove the whole block, the
   markup and the three calc() references when the campaign ends.
   ============================================================ */
:root{--ria-alert-h:48px}
.ria-alert{position:fixed;top:0;left:0;right:0;z-index:2147482100;
  background:var(--signal);color:var(--ink);
  font-family:var(--display);font-size:.88rem;line-height:1.45;
  border-bottom:1px solid rgba(10,14,20,.25)}
.ria-alert-inner{max-width:var(--maxw);margin:0 auto;
  padding:11px calc(var(--gut) + 34px) 11px var(--gut);
  display:flex;flex-wrap:wrap;align-items:center;gap:6px 20px}
.ria-alert-tag{flex:0 0 auto;color:var(--ink);opacity:.72;font-size:.66rem}
.ria-alert-text{flex:1 1 300px;margin:0;font-weight:500}
.ria-alert-link{flex:0 0 auto;background:var(--ink);color:var(--bone);
  font-size:.78rem;font-weight:600;padding:7px 15px;border-radius:var(--radius);
  white-space:nowrap;transition:opacity .3s var(--ease)}
.ria-alert-link:hover{opacity:.82}
.ria-alert-close{position:absolute;top:8px;right:calc(var(--gut) - 8px);
  width:28px;height:28px;border:1px solid rgba(10,14,20,.3);border-radius:var(--radius);
  color:var(--ink);font-size:16px;line-height:1}
.ria-alert-close:hover{background:rgba(10,14,20,.1)}
.ria-alert a:focus-visible,.ria-alert button:focus-visible{outline:2px solid var(--ink);outline-offset:2px}

@media(max-width:760px){
  :root{--ria-alert-h:96px}
  .ria-alert-inner{padding:11px var(--gut) 13px}
  .ria-alert-tag{display:none}
  .ria-alert-link{width:100%;text-align:center}
  .ria-alert-close{top:5px;right:8px;width:24px;height:24px;font-size:14px}
}
@media print{.ria-alert{display:none!important}}