/* ═════════════════════════════════════════════════════
   0DATA Design System v3 — Nec Plus Ultra 2026
   Shared across ALL 0DATA pages
   Synthesis: Linear × Vercel × Apple × Revolut
   ═════════════════════════════════════════════════════ */

/* ── Luminance Stacking (Linear-inspired) ── */
:root{
  --void:#030609;
  --abyss:#060a12;
  --deep:#080c15;
  --panel:#0c101a;
  --elevated:#111722;
  --cyan:#00d4ff;
  --cyan-dim:#0099bb;
  --gold:#c9a84c;
  --gold-dim:#a68a2e;
  --green:#34d399;
  --red:#ef4444;
  --text-bright:#eef2f8;
  --text:#b8c4d2;
  --text-dim:#6b7585;
  --text-muted:#4a5260;
  /* Shadow-border (Vercel technique) */
  --ring:0 0 0 1px rgba(255,255,255,0.04);
  --ring-hover:0 0 0 1px rgba(0,212,255,0.12);
  --ring-gold:0 0 0 1px rgba(201,168,76,0.12);
  --glow:0 8px 40px rgba(0,0,0,.4),0 0 80px rgba(0,212,255,.015);
  --glow-hover:0 12px 56px rgba(0,0,0,.5),0 0 100px rgba(0,212,255,.04);
  --inner-glow:inset 0 0 0 1px rgba(255,255,255,0.015);
  --font:'Inter',-apple-system,system-ui,sans-serif;
  --mono:'Share Tech Mono',monospace;
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:16px;
  --radius-pill:9999px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth}
body{
  background:var(--void);
  color:var(--text);
  font-family:var(--font);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.6;
  overflow-x:hidden;
  font-feature-settings:'cv01','ss03';
}
::selection{background:var(--cyan);color:var(--void)}
a{color:var(--cyan);text-decoration:none;transition:color .25s}
a:hover{color:var(--gold)}

/* ── Typography ── */
h1,h2,h3,h4{color:var(--text-bright);font-weight:600}
h1{font-size:clamp(32px,6vw,56px);letter-spacing:-1.5px;line-height:1.08}
h2{font-size:clamp(22px,4vw,36px);letter-spacing:-0.8px;line-height:1.2}

/* ── Layout ── */
.container{max-width:1200px;margin:0 auto;padding:0 28px}

/* ── Navigation ── */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(3,6,9,.82);
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  box-shadow:var(--ring);
  height:60px;
}
nav .container{
  display:flex;align-items:center;justify-content:space-between;
  height:100%;
}
nav .logo{
  display:flex;align-items:center;gap:10px;
  font-weight:600;font-size:16px;color:var(--text-bright);
  text-decoration:none;
}
nav .logo img{height:28px;width:auto}
nav .logo span{color:var(--cyan);letter-spacing:-0.3px}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none}
.nav-links a{
  color:var(--text-dim);font-size:13px;font-weight:500;
  transition:color .25s;position:relative;text-decoration:none;
}
.nav-links a:hover{color:var(--text-bright)}
.nav-links a::after{
  content:'';position:absolute;bottom:-4px;left:0;
  width:0;height:1.5px;background:var(--cyan);
  transition:width .3s cubic-bezier(.16,1,.3,1);
}
.nav-links a:hover::after{width:100%}
.mobile-toggle{display:none;background:none;border:none;color:var(--text);cursor:pointer;padding:4px}

/* ── Buttons ── */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius);
  font-size:13px;font-weight:600;cursor:pointer;
  transition:all .35s cubic-bezier(.16,1,.3,1);
  border:none;text-decoration:none;white-space:nowrap;
  position:relative;overflow:hidden;
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),var(--cyan-dim));
  color:var(--void);box-shadow:0 4px 20px rgba(0,212,255,.15);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 36px rgba(0,212,255,.28);
}
.btn-primary::after{
  content:'';position:absolute;top:0;left:-100%;width:60%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);
  transform:skewX(-15deg);transition:left .6s;
}
.btn-primary:hover::after{left:120%}
.btn-ghost{
  background:rgba(255,255,255,.02);color:var(--text-bright);
  box-shadow:var(--ring);backdrop-filter:blur(12px);
}
.btn-ghost:hover{
  box-shadow:var(--ring-hover);background:rgba(255,255,255,.04);
  transform:translateY(-2px);
}
.btn-pill{
  border-radius:var(--radius-pill);padding:10px 22px;
  font-size:13px;font-weight:500;color:var(--cyan);
  background:transparent;box-shadow:0 0 0 1px rgba(0,212,255,.12);
  transition:all .3s;
}
.btn-pill:hover{
  background:rgba(0,212,255,.06);
  box-shadow:0 0 0 1px rgba(0,212,255,.25);
  transform:translateY(-1px);
}
.btn-gold{
  background:linear-gradient(135deg,rgba(201,168,76,.12),rgba(240,214,138,.06));
  color:var(--gold);box-shadow:0 0 0 1px rgba(201,168,76,.15);
}
.btn-gold:hover{
  background:linear-gradient(135deg,rgba(201,168,76,.2),rgba(240,214,138,.1));
  box-shadow:0 0 0 1px rgba(201,168,76,.3);transform:translateY(-2px);
}

/* ── Sections ── */
section{padding:100px 0}
section.alt{background:var(--abyss)}
.section-header{text-align:center;margin-bottom:64px}
.section-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--mono);font-size:10px;font-weight:400;
  text-transform:uppercase;letter-spacing:2px;
  color:var(--cyan);margin-bottom:12px;
}
.section-title{
  font-size:clamp(24px,3.5vw,36px);
  font-weight:600;color:var(--text-bright);
  letter-spacing:-0.8px;line-height:1.2;margin-bottom:12px;
}
.section-sub{
  font-size:15px;color:var(--text-dim);
  max-width:560px;line-height:1.7;margin-bottom:48px;font-weight:400;
}

/* ── Cards (premium) ── */
.card{
  background:var(--panel);
  box-shadow:var(--ring),var(--inner-glow);
  border-radius:var(--radius-lg);
  padding:32px 28px;
  transition:all .45s cubic-bezier(.16,1,.3,1);
  position:relative;overflow:hidden;
}
.card::before{
  content:'';position:absolute;top:0;left:0;right:0;
  height:2px;background:linear-gradient(90deg,var(--cyan),var(--gold));
  opacity:0;transition:opacity .4s;
}
.card:hover::before{opacity:1}
.card::after{
  content:'';position:absolute;top:0;left:-100%;width:50%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.015),transparent);
  transform:skewX(-15deg);transition:left .7s ease;
}
.card:hover::after{left:120%}
.card:hover{
  transform:translateY(-5px);
  box-shadow:var(--ring-hover),var(--glow-hover),var(--inner-glow);
  background:var(--elevated);
}
.card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.card .desc{font-size:13px;color:var(--text-dim);line-height:1.7}

/* ── Tags ── */
.tag{
  display:inline-flex;font-size:10px;font-weight:500;
  padding:3px 10px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.02);
  box-shadow:0 0 0 1px rgba(255,255,255,.04);
  color:var(--text-dim);font-family:var(--mono);
  letter-spacing:0.5px;
}

/* ── Hero ── */
.hero{
  min-height:85vh;display:flex;align-items:center;
  position:relative;padding:120px 0 80px;overflow:hidden;
}
.hero-orb{
  position:absolute;border-radius:50%;filter:blur(120px);opacity:.1;
  pointer-events:none;
}
.hero-orb.cyan{background:var(--cyan);width:600px;height:600px;top:-200px;right:-200px}
.hero-orb.gold{background:var(--gold);width:400px;height:400px;bottom:-120px;left:-100px;opacity:.05}
.hero-content{position:relative;z-index:2;max-width:720px}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 16px;border-radius:var(--radius-pill);
  box-shadow:0 0 0 1px rgba(0,212,255,.1);
  font-size:11px;font-weight:500;color:var(--cyan);
  margin-bottom:28px;background:rgba(0,212,255,.04);
  font-family:var(--mono);letter-spacing:1px;text-transform:uppercase;
}
.hero h1{font-size:clamp(36px,6.5vw,64px);font-weight:600;line-height:1.05;letter-spacing:-2px;margin-bottom:20px}
.hero .gradient-text{
  background:linear-gradient(135deg,var(--cyan) 0%,var(--gold) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero .hero-sub{
  font-size:clamp(15px,1.6vw,18px);color:var(--text-dim);
  line-height:1.8;max-width:580px;margin-bottom:36px;font-weight:400;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ── Stats bar ── */
.stats-bar{
  display:flex;gap:48px;margin-top:56px;padding-top:32px;
  box-shadow:0 -1px 0 0 rgba(255,255,255,.04);
}
.stat .num{font-size:28px;font-weight:600;color:var(--text-bright)}
.stat .label{font-size:11px;color:var(--text-muted);margin-top:4px;font-family:var(--mono);text-transform:uppercase;letter-spacing:1px}

/* ── Grid ── */
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(380px,1fr));gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}

/* ── Footer ── */
footer{
  padding:40px 0;
  box-shadow:0 -1px 0 0 rgba(255,255,255,.03);
}
footer .container{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:16px;
}
footer .copy{font-size:12px;color:var(--text-muted)}
footer .copy span{color:var(--cyan);font-family:var(--mono)}
footer .links{display:flex;gap:24px}
footer .links a{font-size:12px;color:var(--text-dim);text-decoration:none;transition:color .25s}
footer .links a:hover{color:var(--text-bright)}

/* ── Spotlight ── */
.spotlight{
  background:var(--abyss);border-radius:var(--radius-lg);
  box-shadow:var(--ring),var(--inner-glow);
  padding:56px 48px;display:flex;align-items:center;gap:48px;
  position:relative;overflow:hidden;
}
.spotlight::before{
  content:'';position:absolute;top:-50%;right:-30%;
  width:500px;height:500px;
  background:radial-gradient(circle,rgba(0,212,255,.04),transparent 70%);
  border-radius:50%;pointer-events:none;
}
.spotlight-content{flex:1;position:relative;z-index:1}
.spotlight-content h3{margin-bottom:12px}
.spotlight-content p{font-size:14px;color:var(--text-dim);line-height:1.7;margin-bottom:24px}

/* ── Scroll animation ── */
[data-anim]{opacity:0;transform:translateY(24px);transition:all .8s cubic-bezier(.16,1,.3,1)}
[data-anim].visible{opacity:1;transform:translateY(0)}

/* ── Responsive ── */
@media(max-width:768px){
  .nav-links{display:none}
  .mobile-toggle{display:block}
  .hero{min-height:70vh;padding:100px 0 60px}
  .hero h1{font-size:clamp(28px,8vw,40px)}
  .stats-bar{gap:28px;flex-wrap:wrap}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .spotlight{flex-direction:column;text-align:center;padding:40px 24px}
  section{padding:64px 0}
  .section-header{margin-bottom:40px}
}
@media(min-width:1400px){
  .hero h1{font-size:64px}
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .grid-4{grid-template-columns:repeat(4,1fr)}
}