/* ==========================================================================
   LithX Shared Stylesheet
   Used across all pages — keeps the design system consistent
   ========================================================================== */

:root{
  --bg:#0a0d0a;
  --bg-2:#101410;
  --bg-3:#161b16;
  --ink:#f4f7f2;
  --ink-dim:#a9b2a4;
  --ink-soft:#6e786a;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.16);
  --acid:#c6ff3d;
  --acid-soft:#9ed429;
  --acid-glow:rgba(198,255,61,0.35);
  --amber:#ffb547;
  --teal:#5fd0c4;
  --danger:#ff6b6b;
  --r-sm:10px;
  --r-md:18px;
  --r-lg:28px;
  --font-display:'Bricolage Grotesque', sans-serif;
  --font-serif:'Instrument Serif', serif;
  --font-mono:'JetBrains Mono', monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font-family:var(--font-display);font-weight:400;
  line-height:1.5;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:1000;opacity:.035;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  mix-blend-mode:overlay;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
img{max-width:100%;display:block}

/* ============ NAV ============ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:18px 32px;
  display:flex;align-items:center;justify-content:space-between;
  backdrop-filter:blur(20px) saturate(1.4);
  -webkit-backdrop-filter:blur(20px) saturate(1.4);
  background:rgba(10,13,10,.65);
  border-bottom:1px solid var(--line);
  transition:padding .3s ease;
}
.nav.scrolled{padding:12px 32px}
/* ===== BRAND LOGO ===== */
/* Real LithX logo artwork. Horizontal lockup in nav, stacked version in footer. */
.logo{
  display:flex;align-items:center;
  font-size:0; /* hides legacy text nodes like "Lith" */
}
.logo-mark{
  display:inline-block;flex-shrink:0;
  width:150px;height:36px;
  background:url('lithx-logo-horizontal.png') left center / contain no-repeat;
}
/* Hide ONLY the leftover text span (the "X"), NOT the logo-mark span */
.logo > span:not(.logo-mark){display:none}
/* Footer uses the stacked logo (icon over wordmark) with more vertical room */
.footer-brand .logo-mark{
  width:128px;height:88px;
  background:url('lithx-logo-stacked.png') left center / contain no-repeat;
}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:14px;color:var(--ink-dim);font-weight:500;transition:color .2s;position:relative}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--acid)}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;background:var(--acid);color:#0a0d0a;
  font-weight:600;font-size:14px;border-radius:100px;
  transition:transform .2s,box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px var(--acid-glow)}
.menu-toggle{display:none;width:28px;height:20px;flex-direction:column;justify-content:space-between;cursor:pointer}
.menu-toggle span{height:2px;background:var(--ink);width:100%;transition:.3s}
.menu-toggle.open span:nth-child(1){transform:translateY(9px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}

/* ============ PAGE HEADER ============ */
.page-header{
  padding:140px 32px 60px;
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-header::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 30%, rgba(198,255,61,.1), transparent 60%),
    radial-gradient(ellipse 50% 60% at 85% 70%, rgba(95,208,196,.07), transparent 60%);
  z-index:0;
}
.page-header::after{
  content:'';position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image:radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse at center, black 30%, transparent 80%);
  z-index:0;
}
.page-header-inner{max-width:1400px;margin:0 auto;position:relative;z-index:1}

.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-family:var(--font-mono);font-size:12px;
  color:var(--ink-soft);margin-bottom:24px;letter-spacing:.08em;
}
.breadcrumb a{color:var(--ink-dim);transition:color .2s}
.breadcrumb a:hover{color:var(--acid)}
.breadcrumb .sep{color:var(--line-strong)}

.page-tag{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 16px;
  border:1px solid var(--line-strong);
  border-radius:100px;
  font-family:var(--font-mono);font-size:12px;
  color:var(--ink-dim);margin-bottom:24px;
  letter-spacing:.05em;background:rgba(255,255,255,.02);
}
.page-tag .dot{
  width:6px;height:6px;background:var(--acid);border-radius:50%;
  box-shadow:0 0 12px var(--acid);animation:pulse 2s infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.4)}}

.page-header h1{
  font-size:clamp(40px,6vw,84px);
  font-weight:600;line-height:.95;letter-spacing:-.035em;
  margin-bottom:24px;max-width:900px;
}
.page-header h1 .serif{font-family:var(--font-serif);font-style:italic;font-weight:400;color:var(--acid)}
.page-header p.lede{
  font-size:18px;color:var(--ink-dim);max-width:660px;
  line-height:1.55;margin-bottom:32px;
}

/* ============ SECTION ============ */
.section{padding:100px 32px;position:relative}
.section-inner{max-width:1400px;margin:0 auto}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:40px;flex-wrap:wrap;margin-bottom:56px;
}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;
  color:var(--acid);letter-spacing:.15em;text-transform:uppercase;
  margin-bottom:16px;
}
.section-eyebrow::before{content:'';width:32px;height:1px;background:var(--acid)}
.section h2{
  font-size:clamp(36px,5vw,64px);
  font-weight:600;letter-spacing:-.03em;line-height:1;max-width:800px;
}
.section h2 .serif{font-family:var(--font-serif);font-style:italic;font-weight:400;color:var(--acid)}
.section-head p{color:var(--ink-dim);max-width:380px;font-size:16px}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:16px 28px;border-radius:100px;
  font-weight:600;font-size:15px;
  transition:transform .2s,box-shadow .2s,background .2s;
  cursor:pointer;border:1px solid transparent;
}
.btn-primary{background:var(--acid);color:#0a0d0a}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px var(--acid-glow)}
.btn-ghost{border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--acid);color:var(--acid)}
.btn-wa{background:#25D366;color:#fff}
.btn-wa:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(37,211,102,.4)}

/* ============ CTA SECTION ============ */
.cta{padding:120px 32px;background:var(--bg);position:relative;overflow:hidden}
.cta::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(circle at 20% 80%,var(--acid-glow),transparent 50%),
    radial-gradient(circle at 80% 20%,rgba(95,208,196,.15),transparent 50%);
  filter:blur(60px);
}
.cta-inner{max-width:900px;margin:0 auto;text-align:center;position:relative;z-index:1}
.cta h2{font-size:clamp(40px,6vw,72px);font-weight:600;letter-spacing:-.04em;line-height:.95;margin-bottom:24px}
.cta h2 .serif{font-family:var(--font-serif);font-style:italic;font-weight:400;color:var(--acid)}
.cta p{color:var(--ink-dim);font-size:18px;max-width:560px;margin:0 auto 40px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ============ FOOTER ============ */
.footer{background:var(--bg);padding:80px 32px 32px;border-top:1px solid var(--line)}
.footer-inner{max-width:1400px;margin:0 auto}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:48px;padding-bottom:48px;border-bottom:1px solid var(--line);
}
.footer-brand .logo{margin-bottom:20px}
.footer-brand p{color:var(--ink-dim);font-size:14px;margin-bottom:24px;max-width:320px}
.footer-socials{display:flex;gap:10px}
.footer-socials a{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);border-radius:50%;
  color:var(--ink-dim);transition:all .2s;
}
.footer-socials a:hover{border-color:var(--acid);color:var(--acid);transform:translateY(-2px)}
.footer-col h4{
  font-family:var(--font-mono);font-size:11px;
  color:var(--ink-soft);letter-spacing:.15em;
  text-transform:uppercase;margin-bottom:20px;
}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:12px}
.footer-col a{color:var(--ink-dim);font-size:14px;transition:color .2s}
.footer-col a:hover{color:var(--acid)}
.footer-bot{padding-top:32px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.footer-bot p{font-family:var(--font-mono);font-size:12px;color:var(--ink-soft)}
.cert-pill{
  padding:8px 14px;background:rgba(255,255,255,.04);
  border:1px solid var(--line-strong);border-radius:100px;
  font-family:var(--font-mono);font-size:11px;
  color:var(--ink-dim);letter-spacing:.08em;
}
.cert-pill strong{color:var(--acid);font-weight:600}
.footer-cert{display:flex;gap:10px;flex-wrap:wrap}

/* ============ FLOATING WA ============ */
.float-wa{
  position:fixed;bottom:28px;right:28px;
  width:60px;height:60px;border-radius:50%;
  background:#25D366;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 32px rgba(37,211,102,.4);
  z-index:90;transition:transform .2s;
  animation:wa-pulse 2.5s ease-in-out infinite;
}
.float-wa:hover{transform:scale(1.1)}
@keyframes wa-pulse{
  0%,100%{box-shadow:0 8px 32px rgba(37,211,102,.4),0 0 0 0 rgba(37,211,102,.4)}
  50%{box-shadow:0 8px 32px rgba(37,211,102,.4),0 0 0 16px rgba(37,211,102,0)}
}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s,transform .8s}
.reveal.in{opacity:1;transform:translateY(0)}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:680px){
  .nav{padding:14px 20px}
  .nav-links{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:flex-start;
    padding:24px;gap:16px;
    background:rgba(10,13,10,.98);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    backdrop-filter:blur(20px);
  }
  .nav-links.open{display:flex}
  .menu-toggle{display:flex}
  .nav-cta{display:none}
  .page-header{padding:110px 20px 40px}
  .section{padding:64px 20px}
  .cta{padding:80px 20px}
  .footer{padding:60px 20px 24px}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .footer-bot{flex-direction:column;align-items:flex-start}
  .float-wa{bottom:20px;right:20px;width:54px;height:54px}
  .section-head{flex-direction:column;align-items:flex-start}
}