/* ════════════════════════════════════════════════════════
   TRINITY PRISM · Shared design tokens & components
   ════════════════════════════════════════════════════════ */

:root{
  --ink:#05060A;
  --surface:#0A0916;
  --surface-2:#13101F;
  --surface-3:#1A1530;
  --text:#EDEAF5;
  --sub:#9CA3AF;
  --faint:#4B5563;
  --border:rgba(255,255,255,.08);
  --border-2:rgba(255,255,255,.14);
  --border-3:rgba(139,92,246,.30);
  /* Spectrum — Purple / Indigo / Sky */
  --purple:#8B5CF6;
  --pink:#4F46E5;   /* alias kept; semantic = indigo */
  --cyan:#38BDF8;   /* alias kept; semantic = sky */
  --indigo:#4F46E5;
  --sky:#38BDF8;
  --deep:#6D28D9;
  --soft:rgba(139,92,246,.18);
  --glow:rgba(139,92,246,.45);
  --grad: linear-gradient(135deg,#C4B5FD 0%,#8B5CF6 30%,#4F46E5 65%,#38BDF8 100%);
  --grad-2: linear-gradient(110deg,#8B5CF6, #4F46E5 50%, #38BDF8);
  --font-sans:'Pretendard Variable','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-mono:'JetBrains Mono','Consolas','SF Mono',monospace;
  --font-display:'Inter','Pretendard Variable',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  background:var(--ink);color:var(--text);
  font-family:var(--font-sans);
  -webkit-font-smoothing:antialiased;text-rendering:geometricPrecision;
  min-height:100vh;line-height:1.6;overflow-x:hidden;
}
::selection{background:var(--purple);color:#fff}
a{color:inherit;text-decoration:none}
code{font-family:var(--font-mono)}

/* ═══ Background — Mesh blobs + dot field + neural ═══ */
.bg-layer{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bg-blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;mix-blend-mode:screen}
.bg-blob.b1{top:-15%;left:-10%;width:55%;height:55%;background:radial-gradient(circle,rgba(139,92,246,.45),transparent 60%);animation:floatA 22s ease-in-out infinite alternate}
.bg-blob.b2{bottom:-20%;right:-12%;width:55%;height:55%;background:radial-gradient(circle,rgba(79,70,229,.35),transparent 60%);animation:floatB 27s ease-in-out infinite alternate}
.bg-blob.b3{top:35%;left:42%;width:36%;height:36%;background:radial-gradient(circle,rgba(56,189,248,.30),transparent 65%);animation:floatC 33s ease-in-out infinite alternate}
.bg-dots{position:absolute;inset:0;opacity:.38;
  background-image:radial-gradient(rgba(139,92,246,.13) 1px, transparent 1px);
  background-size:34px 34px;
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%, transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%, transparent 75%)}
.bg-grid{position:absolute;inset:0;opacity:.10;
  background-image:linear-gradient(rgba(139,92,246,.18) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(139,92,246,.18) 1px, transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at 50% 30%,#000 0%, transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 30%,#000 0%, transparent 70%)}
#neural{position:absolute;inset:0;width:100%;height:100%;opacity:.45}
@keyframes floatA{0%{transform:translate(0,0) scale(1)} 100%{transform:translate(8%,4%) scale(1.1)}}
@keyframes floatB{0%{transform:translate(0,0) scale(1)} 100%{transform:translate(-7%,-3%) scale(1.08)}}
@keyframes floatC{0%{transform:translate(0,0)} 100%{transform:translate(-5%,8%)}}

/* ═══ Top Navigation ═══ */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(5,6,10,.62);backdrop-filter:blur(20px) saturate(160%);-webkit-backdrop-filter:blur(20px) saturate(160%);
  border-bottom:1px solid rgba(139,92,246,.16);
  padding:14px clamp(24px, 8vw, 160px);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  transition:padding .3s, background .3s}
.nav .logo{justify-self:start}
.nav .menu{justify-self:center}
.nav.scrolled{padding:10px clamp(24px, 8vw, 160px);background:rgba(5,6,10,.86)}
.nav .logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:15px;letter-spacing:.4px}
.nav .logo .prism{width:22px;height:22px;background:var(--grad);clip-path:polygon(25% 0%,100% 50%,25% 100%);filter:drop-shadow(0 0 10px rgba(139,92,246,.6));animation:prismRotate 12s linear infinite;flex-shrink:0}
@keyframes prismRotate{0%{transform:rotate(0)} 100%{transform:rotate(360deg)}}
.nav .logo .label{background:var(--grad-2);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;display:inline-block;padding-right:.12em;overflow:visible}
.nav .logo .sub{color:var(--sub);font-weight:500;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;margin-left:6px}
.nav .menu{display:flex;gap:28px;font-size:13px;font-weight:500;color:var(--sub)}
.nav .menu a{transition:color .2s;position:relative;white-space:nowrap}
.nav .menu a:hover{color:var(--text)}
.nav .menu a.active{color:var(--text)}
.nav .menu a::after{content:'';position:absolute;left:0;right:0;bottom:-6px;height:1px;background:var(--purple);transform:scaleX(0);transform-origin:center;transition:transform .25s}
.nav .menu a:hover::after,.nav .menu a.active::after{transform:scaleX(1)}
.nav .cta{padding:9px 18px;background:var(--purple);color:#fff;border-radius:8px;font-weight:600;font-size:13px;letter-spacing:.2px;border:1px solid var(--purple);box-shadow:0 8px 24px rgba(139,92,246,.30);transition:all .2s;white-space:nowrap}
.nav .cta:hover{background:var(--deep);box-shadow:0 12px 32px rgba(139,92,246,.45);transform:translateY(-1px)}

/* ═══ Common buttons ═══ */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border-radius:10px;font-weight:600;font-size:14px;letter-spacing:.2px;transition:all .2s;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--grad-2);color:#fff;box-shadow:0 10px 32px rgba(139,92,246,.30),0 0 0 1px rgba(255,255,255,.05) inset}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(139,92,246,.45),0 0 0 1px rgba(255,255,255,.08) inset}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--text);border-color:var(--border-2);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:var(--purple)}
.btn .arr{transition:transform .2s}
.btn:hover .arr{transform:translateX(4px)}

/* ═══ Section / Hero ═══ */
.section{position:relative;z-index:1;padding:110px 36px;max-width:1200px;margin:0 auto}
.section-head{margin-bottom:64px;max-width:780px}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11px;letter-spacing:2px;color:var(--purple);text-transform:uppercase;font-weight:700;margin-bottom:18px}
.section-eyebrow::before{content:'';width:24px;height:1px;background:var(--purple)}
.section-title{font-size:clamp(34px,4.4vw,52px);font-weight:800;letter-spacing:-1px;line-height:1.18;margin-bottom:20px}
.section-title em{background:var(--grad-2);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-style:normal;display:inline-block;padding-right:.15em;padding-bottom:.05em;overflow:visible;line-height:1.2}
.section-lead{font-size:17px;color:var(--sub);line-height:1.6;max-width:680px}

.page-hero{position:relative;z-index:1;padding:140px 36px 60px;max-width:1200px;margin:0 auto}
.page-hero .eyebrow{display:inline-flex;align-items:center;gap:10px;padding:8px 14px;background:linear-gradient(110deg,rgba(139,92,246,.14),rgba(79,70,229,.10));border:1px solid var(--border-3);border-radius:99px;width:fit-content;margin-bottom:28px;font-family:var(--font-mono);font-size:11px;letter-spacing:1.6px;color:var(--purple);text-transform:uppercase;font-weight:700}
.page-hero .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--purple);box-shadow:0 0 12px var(--purple);animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(.7)}}
.page-hero h1{font-size:clamp(40px,5.6vw,72px);font-weight:900;letter-spacing:-1.8px;line-height:1.1;margin-bottom:24px;max-width:1000px}
.page-hero h1 em{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-style:normal;display:inline-block;padding-right:.2em;padding-bottom:.05em;overflow:visible;line-height:1.18}
.page-hero .lead{font-size:18px;color:var(--sub);max-width:740px;line-height:1.6;margin-bottom:36px}
.page-hero .lead strong{color:var(--text);font-weight:600}

/* ═══ Footer ═══ */
.footer{position:relative;z-index:1;border-top:1px solid var(--border);padding:60px 36px 36px;background:rgba(5,6,10,.7)}
.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand .logo{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:800;margin-bottom:14px}
.footer-brand .logo .prism{width:20px;height:20px;background:var(--grad);clip-path:polygon(25% 0%,100% 50%,25% 100%);flex-shrink:0}
.footer-brand .desc{font-size:13px;color:var(--sub);line-height:1.6;max-width:340px;margin-bottom:18px}
.footer-brand .co{font-size:12px;color:var(--faint);line-height:1.6}
.footer-col h6{font-size:11px;letter-spacing:1.6px;color:var(--text);font-weight:700;text-transform:uppercase;margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13px;color:var(--sub);transition:color .2s}
.footer-col a:hover{color:var(--purple)}
.footer-social{max-width:1200px;margin:0 auto 32px;padding:24px 0;border-top:1px solid var(--border);display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.footer-social .soc{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;background:rgba(255,255,255,.02);border:1px solid var(--border-2);border-radius:99px;font-size:12.5px;color:var(--sub);font-weight:600;transition:all .2s;letter-spacing:.2px}
.footer-social .soc:hover{background:rgba(139,92,246,.08);border-color:var(--purple);color:var(--purple);transform:translateY(-2px)}
.footer-social .soc svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.footer-bottom{max-width:1200px;margin:0 auto;padding-top:24px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:18px}
.footer-bottom .copy{font-size:12px;color:var(--faint)}
.footer-bottom .listing{font-family:var(--font-mono);font-size:11px;color:var(--sub);letter-spacing:.8px}
.footer-bottom .listing strong{color:var(--purple)}

/* ═══ CTA Banner (reusable) ═══ */
.cta-banner{margin:80px auto;max-width:1100px;padding:72px 60px;text-align:center;
  background:linear-gradient(135deg,rgba(124,58,237,.20),rgba(79,70,229,.15) 50%,rgba(56,189,248,.20));
  border:1px solid var(--border-3);border-radius:26px;backdrop-filter:blur(12px);position:relative;overflow:hidden;z-index:1}
.cta-banner::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,transparent 50%,rgba(5,6,10,.4));pointer-events:none}
.cta-banner h2{font-size:clamp(30px,3.8vw,46px);font-weight:800;letter-spacing:-1px;line-height:1.2;margin-bottom:18px;position:relative}
.cta-banner h2 em{background:var(--grad-2);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-style:normal;display:inline-block;padding-right:.15em;padding-bottom:.05em;overflow:visible;line-height:1.25}
.cta-banner p{font-size:17px;color:var(--sub);max-width:580px;margin:0 auto 36px;line-height:1.6;position:relative}
.cta-banner .ctas{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative}

/* ═══ Reveal animations ═══ */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .9s ease, transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:translateY(0)}

/* ═══ Icon helper (line-only monotone) ═══ */
.icon{stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* ═══ Responsive ═══ */
@media (max-width:880px){
  .nav{padding:12px 20px}
  .nav .menu{display:none}
  .page-hero{padding:120px 20px 50px}
  .section{padding:80px 20px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
  .cta-banner{padding:50px 28px}
}