/* ============================================================
   VARIABLES
============================================================ */
:root{
  --bg: #05060a;
  --bg-alt: #0a0c14;
  --ink: #f4f5f9;
  --ink-dim: #a7abc0;
  --violet: #8b5cf6;
  --cyan: #22d3ee;
  --pink: #f472b6;
  --glass-bg: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.12);
  --radius: 22px;
  --ease: cubic-bezier(.16,.84,.44,1);
  --font: 'Space Grotesk', 'Inter', system-ui, sans-serif;
}

/* ============================================================
   RESET
============================================================ */
*, *::before, *::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:auto; background:var(--bg); }
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  overflow-x:hidden;
  min-height:100vh;
}
img{ max-width:100%; display:block; }
button{ font-family:inherit; border:none; background:none; cursor:pointer; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3{ font-weight:600; line-height:1.05; letter-spacing:-0.02em; }
ul{ list-style:none; }

/* ============================================================
   BACKDROP / WEBGL CANVAS
============================================================ */
#webgl-canvas{
  position:fixed;
  inset:0;
  width:100vw;
  height:100vh;
  z-index:0;
  display:block;
}

.bg-gradient{
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(circle at 20% 20%, rgba(139,92,246,0.20), transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(34,211,238,0.16), transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(244,114,182,0.12), transparent 50%);
  background-size:200% 200%;
  animation:drift 22s ease-in-out infinite alternate;
}
@keyframes drift{
  0%{ background-position:0% 0%; }
  100%{ background-position:100% 100%; }
}

/* grain texture for premium feel */
.grain{
  position:fixed; inset:0; z-index:2; pointer-events:none; opacity:.035; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================================
   LAYOUT
============================================================ */
main#app{ position:relative; z-index:1; }
.section{
  position:relative;
  min-height:100vh;
  width:100%;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  padding:8vh 6vw;
  text-align:center;
}

/* ============================================================
   NAVBAR
============================================================ */
.navbar{
  position:fixed;
  top:0; left:0; right:0;
  z-index:50;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:22px 5vw;
  transition:padding .4s var(--ease), background .4s var(--ease), backdrop-filter .4s var(--ease);
}
.navbar.scrolled{
  padding:14px 5vw;
  background:rgba(5,6,10,0.55);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--glass-border);
}
.logo{
  font-weight:700;
  font-size:1.15rem;
  letter-spacing:-0.02em;
  background:linear-gradient(90deg,var(--ink),var(--cyan));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.nav-links{ display:flex; gap:2.4rem; }
.nav-links a{
  font-size:.88rem;
  color:var(--ink-dim);
  position:relative;
  transition:color .3s;
}
.nav-links a::after{
  content:'';
  position:absolute; left:0; bottom:-4px;
  width:0; height:1px;
  background:var(--cyan);
  transition:width .3s var(--ease);
}
.nav-links a:hover{ color:var(--ink); }
.nav-links a:hover::after{ width:100%; }

.nav-toggle{
  display:none;
  width:26px; height:20px;
  position:relative;
  z-index:60;
}
.nav-toggle span{
  position:absolute; left:0; width:100%; height:2px; background:var(--ink);
  transition:transform .35s var(--ease), opacity .35s var(--ease);
}
.nav-toggle span:nth-child(1){ top:0; }
.nav-toggle span:nth-child(2){ top:9px; }
.nav-toggle span:nth-child(3){ top:18px; }
.nav-toggle.active span:nth-child(1){ transform:translateY(9px) rotate(45deg); }
.nav-toggle.active span:nth-child(2){ opacity:0; }
.nav-toggle.active span:nth-child(3){ transform:translateY(-9px) rotate(-45deg); }

/* ============================================================
   BUTTONS
============================================================ */
.btn{
  position:relative;
  padding:15px 34px;
  border-radius:100px;
  font-size:.92rem;
  font-weight:600;
  letter-spacing:.01em;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  overflow:hidden;
  isolation:isolate;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease);
}
.btn-primary{
  color:#05060a;
  background:linear-gradient(120deg,var(--cyan),var(--violet));
  box-shadow:0 10px 30px -8px rgba(139,92,246,0.55);
}
.btn-primary:hover{ transform:translateY(-3px); box-shadow:0 16px 40px -8px rgba(139,92,246,0.75); }
.btn-ghost{
  color:var(--ink);
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,0.04);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{ background:rgba(255,255,255,0.09); transform:translateY(-3px); }
.btn-large{ padding:19px 46px; font-size:1.02rem; }

/* ============================================================
   GLASSMORPHISM CARD
============================================================ */
.glass-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  backdrop-filter:blur(22px) saturate(150%);
  -webkit-backdrop-filter:blur(22px) saturate(150%);
  box-shadow:0 20px 60px -20px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.06);
}

/* ============================================================
   HERO
============================================================ */
.hero-section{ justify-content:center; }
.hero-content{ max-width:900px; }
.eyebrow{
  display:inline-block;
  padding:8px 18px;
  border-radius:100px;
  font-size:.78rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--cyan);
  border:1px solid rgba(34,211,238,0.35);
  background:rgba(34,211,238,0.06);
  margin-bottom:1.6rem;
}
.hero-title{
  font-size:clamp(2.6rem, 7.6vw, 6.4rem);
  margin-bottom:1.4rem;
}
.hero-title .line{
  display:block;
  background:linear-gradient(100deg,#fff 20%,var(--cyan) 50%,var(--violet) 80%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero-subtitle{
  font-size:clamp(1rem,1.6vw,1.25rem);
  color:var(--ink-dim);
  max-width:560px;
  margin:0 auto 2.6rem;
  font-weight:400;
}
.hero-cta{ display:flex; gap:1rem; justify-content:center; flex-wrap:wrap; }

.scroll-indicator{
  position:absolute; bottom:5vh; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:8px;
  color:var(--ink-dim); font-size:.72rem; letter-spacing:.16em; text-transform:uppercase;
}
.scroll-indicator span{
  width:1px; height:40px; background:linear-gradient(var(--cyan), transparent);
  animation:scrollpulse 1.8s ease-in-out infinite;
}
@keyframes scrollpulse{
  0%{ opacity:.2; transform:scaleY(.4); transform-origin:top;}
  50%{ opacity:1; transform:scaleY(1); transform-origin:top;}
  100%{ opacity:.2; transform:scaleY(.4); transform-origin:top;}
}

/* ============================================================
   REVEAL TEXT (JS-controlled base state)
============================================================ */
.reveal-text, .reveal-up{
  opacity:0;
  filter:blur(10px);
  transform:translateY(40px);
  will-change:transform, opacity, filter;
}

/* ============================================================
   ABOUT SECTION
============================================================ */
.about-section{ justify-content:center; }
.about-card{
  max-width:760px;
  padding:clamp(2.2rem,4vw,4rem);
}
.tag{
  display:inline-block; font-size:.78rem; letter-spacing:.12em; text-transform:uppercase;
  color:var(--pink); margin-bottom:1rem;
}
.about-card h2{
  font-size:clamp(1.8rem,3.4vw,2.8rem);
  margin-bottom:1.2rem;
}
.about-card p{
  color:var(--ink-dim);
  font-size:1.05rem;
  line-height:1.7;
  max-width:600px;
  margin:0 auto 2.4rem;
}
.stats-row{
  display:flex; justify-content:center; gap:clamp(1.4rem,4vw,3.6rem); flex-wrap:wrap;
  border-top:1px solid var(--glass-border);
  padding-top:1.8rem;
}
.stat h3{
  font-size:clamp(1.6rem,3vw,2.4rem);
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.stat p{ color:var(--ink-dim); font-size:.82rem; margin-top:.2rem; }

/* ============================================================
   FEATURES SECTION
============================================================ */
.features-section{ min-height:auto; padding:14vh 6vw; }
.section-title{
  font-size:clamp(2rem,4vw,3.2rem);
  margin-bottom:4rem;
}
.features-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:1.6rem;
  width:100%;
  max-width:1200px;
}
.feature-card{
  padding:2.2rem 1.8rem;
  text-align:left;
  transform-style:preserve-3d;
  perspective:800px;
  transition:box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.feature-card:hover{
  border-color:rgba(34,211,238,0.4);
  box-shadow:0 30px 70px -25px rgba(34,211,238,0.25), inset 0 1px 0 rgba(255,255,255,0.08);
}
.feature-icon{
  width:46px; height:46px; border-radius:14px; margin-bottom:1.4rem;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg,var(--violet),var(--cyan));
  font-size:1.3rem;
}
.feature-card h3{ font-size:1.15rem; margin-bottom:.6rem; }
.feature-card p{ color:var(--ink-dim); font-size:.92rem; line-height:1.6; }

/* ============================================================
   SHOWCASE SECTION
============================================================ */
.showcase-section{
  align-items:center;
  gap:4vh;
}
.showcase-visual{
  width:min(920px, 90vw);
  aspect-ratio:16/9;
  border-radius:28px;
  border:1px solid var(--glass-border);
  background:
    linear-gradient(160deg, rgba(139,92,246,0.18), rgba(34,211,238,0.10) 60%),
    rgba(255,255,255,0.03);
  backdrop-filter:blur(10px);
  position:relative;
  overflow:hidden;
  box-shadow:0 40px 100px -30px rgba(0,0,0,0.7);
}
.showcase-visual::before{
  content:'';
  position:absolute; inset:0;
  background:radial-gradient(circle at 30% 20%, rgba(255,255,255,0.14), transparent 45%);
}
.showcase-visual .glow{
  position:absolute; width:60%; height:60%; border-radius:50%;
  background:radial-gradient(circle, rgba(34,211,238,0.35), transparent 70%);
  top:20%; left:20%; filter:blur(40px);
}
.showcase-text{ max-width:640px; }
.showcase-text h2{ font-size:clamp(1.8rem,3.2vw,2.6rem); margin-bottom:1rem; }
.showcase-text p{ color:var(--ink-dim); font-size:1.02rem; line-height:1.7; }

/* ============================================================
   CTA / FOOTER
============================================================ */
.cta-section{
  overflow:hidden;
}
.cta-bg-gradient{
  position:absolute; inset:0;
  background:conic-gradient(from 180deg at 50% 50%, var(--violet), var(--cyan), var(--pink), var(--violet));
  opacity:.14;
  filter:blur(60px);
  animation:spin 18s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg); } }
.cta-section h2{
  position:relative;
  font-size:clamp(2.2rem,5.6vw,4.4rem);
  margin-bottom:1rem;
}
.cta-section p{
  position:relative;
  color:var(--ink-dim); font-size:1.1rem; margin-bottom:2.4rem;
}
.cta-section .btn{ position:relative; }

.site-footer{
  position:relative;
  width:100%;
  padding:5vh 6vw 4vh;
  display:flex;
  flex-direction:column;
  gap:2rem;
  border-top:1px solid var(--glass-border);
}
.footer-top{
  display:flex; justify-content:space-between; align-items:flex-start; flex-wrap:wrap; gap:2rem;
  text-align:left;
}
.footer-cols{ display:flex; gap:4rem; flex-wrap:wrap; }
.footer-col h4{ font-size:.82rem; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-dim); margin-bottom:.9rem; }
.footer-col a{ display:block; font-size:.9rem; color:var(--ink); opacity:.8; margin-bottom:.55rem; transition:opacity .3s, transform .3s; }
.footer-col a:hover{ opacity:1; transform:translateX(4px); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:1rem;
  font-size:.8rem; color:var(--ink-dim);
}
.socials{ display:flex; gap:1rem; }
.socials a{
  width:38px; height:38px; border-radius:50%;
  border:1px solid var(--glass-border);
  display:flex; align-items:center; justify-content:center;
  transition:background .3s, transform .3s;
}
.socials a:hover{ background:rgba(255,255,255,0.08); transform:translateY(-3px); }

/* ============================================================
   CUSTOM CURSOR (desktop only)
============================================================ */
.cursor-dot{
  position:fixed; top:0; left:0; width:8px; height:8px; border-radius:50%;
  background:var(--cyan); pointer-events:none; z-index:9999; mix-blend-mode:difference;
  transform:translate(-50%,-50%);
}
.cursor-ring{
  position:fixed; top:0; left:0; width:34px; height:34px; border-radius:50%;
  border:1px solid rgba(255,255,255,0.5); pointer-events:none; z-index:9998;
  transform:translate(-50%,-50%);
}

/* ============================================================
   SCROLL PROGRESS BAR
============================================================ */
.scroll-progress{
  position:fixed; top:0; left:0; height:3px; width:0%;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  z-index:70;
}

/* ============================================================
   LOADER
============================================================ */
.loader{
  position:fixed; inset:0; z-index:100;
  background:var(--bg);
  display:flex; align-items:center; justify-content:center;
  transition:opacity .8s var(--ease), visibility .8s var(--ease);
}
.loader-text{
  font-size:.85rem; letter-spacing:.3em; text-transform:uppercase; color:var(--ink-dim);
}
.loader-text span{
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.loader.hidden{ opacity:0; visibility:hidden; pointer-events:none; }

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width:900px){
  .features-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .footer-top{ flex-direction:column; }
}
.hide-mobile{ display:inline; }
@media (max-width:680px){
  .hide-mobile{ display:none; }
  .nav-links{
    position:fixed; inset:0; z-index:55;
    background:rgba(5,6,10,0.96);
    backdrop-filter:blur(20px);
    flex-direction:column; align-items:center; justify-content:center;
    gap:2rem;
    transform:translateY(-100%);
    transition:transform .5s var(--ease);
  }
  .nav-links.open{ transform:translateY(0); }
  .nav-links a{ font-size:1.4rem; }
  .nav-toggle{ display:block; }
  .features-grid{ grid-template-columns:1fr; }
  .stats-row{ gap:1.6rem; }
  .cursor-dot, .cursor-ring{ display:none; }
}

/* ============================================================
   REDUCED MOTION
============================================================ */
@media (prefers-reduced-motion: reduce){
  .reveal-text, .reveal-up{ opacity:1; filter:none; transform:none; }
  .bg-gradient, .cta-bg-gradient, .scroll-indicator span{ animation:none; }
}