/* =========================================================
   Z-H-H Barcode Studio — Premium animated styles
   ========================================================= */
:root{
  --bg:#070912;
  --bg-2:#0d1224;
  --surface:#11162b;
  --surface-2:#161c38;
  --border:rgba(255,255,255,0.08);
  --text:#e8ecff;
  --muted:#9aa3c7;
  --primary:#7c5cff;
  --primary-2:#22d3ee;
  --accent:#ff6ec7;
  --success:#25d366;
  --grad: linear-gradient(135deg,#7c5cff 0%,#22d3ee 50%,#ff6ec7 100%);
  --shadow-lg: 0 30px 80px -20px rgba(124,92,255,.45);
  --radius: 18px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Space Grotesk',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  background:radial-gradient(1200px 800px at 80% -10%, #1a1247 0%, transparent 60%),
             radial-gradient(900px 700px at -10% 30%, #003a4d 0%, transparent 55%),
             var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  line-height:1.55;
}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
.container{width:min(1200px,92%);margin:0 auto}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Animated background blobs ---------- */
.bg-blobs{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.blob{position:absolute;width:520px;height:520px;border-radius:50%;filter:blur(120px);opacity:.45;animation:float 18s ease-in-out infinite}
.blob.b1{background:#7c5cff;top:-120px;left:-100px}
.blob.b2{background:#22d3ee;bottom:-160px;right:-120px;animation-delay:-6s}
.blob.b3{background:#ff6ec7;top:40%;left:50%;animation-delay:-12s;opacity:.3}
@keyframes float{
  0%,100%{transform:translate(0,0) scale(1)}
  50%{transform:translate(40px,-30px) scale(1.1)}
}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(7,9,18,.6);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 4%;}
.brand{display:flex;flex-direction:column;line-height:1.05}
.brand-mark{font-weight:700;font-size:22px;letter-spacing:.5px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-mark .dot{color:var(--accent);-webkit-text-fill-color:initial}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:2px;text-transform:uppercase}
.nav-links{display:flex;gap:26px}
.nav-links a{color:var(--muted);font-size:14px;position:relative;transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--grad);transition:width .3s}
.nav-links a:hover::after{width:100%}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:12px;font-weight:600;font-size:14px;border:1px solid transparent;cursor:pointer;transition:transform .2s, box-shadow .2s, background .2s;font-family:inherit}
.btn-primary{background:var(--grad);color:white;box-shadow:0 10px 30px -10px rgba(124,92,255,.6)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px -10px rgba(124,92,255,.8)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--border);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn-wa{background:linear-gradient(135deg,#25d366,#128c7e);color:white;border:none}
.btn-wa:hover{transform:translateY(-2px);box-shadow:0 10px 30px -10px rgba(37,211,102,.7)}

/* ---------- Hero ---------- */
.hero{padding:80px 4% 60px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;max-width:1200px;margin:0 auto}
.chip{display:inline-block;padding:6px 14px;border-radius:999px;border:1px solid var(--border);background:rgba(124,92,255,.08);color:#cdb8ff;font-size:12px;letter-spacing:.5px;margin-bottom:18px}
.hero h1{font-size:clamp(36px,5.2vw,64px);line-height:1.05;margin:0 0 18px;letter-spacing:-1.2px;font-weight:700}
.lead{font-size:18px;color:var(--muted);max-width:560px;margin:0 0 28px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats strong{font-size:22px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats span{font-size:12px;color:var(--muted);letter-spacing:1px;text-transform:uppercase}

.hero-visual{display:flex;justify-content:center}
.card-3d{
  position:relative;background:var(--surface);border:1px solid var(--border);border-radius:24px;
  padding:36px 28px 22px;width:100%;max-width:440px;box-shadow:var(--shadow-lg);
  transform:perspective(1000px) rotateY(-8deg) rotateX(6deg);
  transition:transform .5s ease;overflow:hidden;
}
.card-3d:hover{transform:perspective(1000px) rotateY(0deg) rotateX(0deg)}
.hero-barcode{width:100%;height:140px;background:white;border-radius:10px;padding:12px}
.card-meta{display:flex;justify-content:space-between;margin-top:14px;font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--muted);letter-spacing:1px}
.scan-line{position:absolute;left:8%;right:8%;top:46px;height:2px;background:linear-gradient(90deg,transparent,#22d3ee,transparent);box-shadow:0 0 12px #22d3ee;animation:scan 2.6s ease-in-out infinite}
@keyframes scan{
  0%,100%{transform:translateY(0);opacity:.9}
  50%{transform:translateY(120px);opacity:1}
}

/* ---------- Sections ---------- */
.section{padding:90px 0}
.section.alt{background:linear-gradient(180deg,transparent, rgba(255,255,255,.02), transparent)}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px}
.eyebrow{display:inline-block;font-size:12px;color:var(--primary-2);letter-spacing:3px;text-transform:uppercase;margin-bottom:12px}
.section-head h2{font-size:clamp(30px,3.8vw,46px);margin:0 0 14px;letter-spacing:-.5px}
.section-head p{color:var(--muted);font-size:17px;margin:0}

/* ---------- Studio ---------- */
.studio{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.panel,.preview{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:0 20px 60px -30px rgba(0,0,0,.6)}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:12px;color:var(--muted);letter-spacing:1px;text-transform:uppercase;font-weight:600}
.field input[type="text"], .field select{
  background:var(--bg-2);color:var(--text);border:1px solid var(--border);padding:12px 14px;border-radius:10px;font-size:15px;font-family:inherit;outline:none;transition:border-color .2s, box-shadow .2s;
}
.field input[type="text"]:focus, .field select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(124,92,255,.2)}
.field input[type="color"]{width:100%;height:42px;border:1px solid var(--border);border-radius:10px;background:var(--bg-2);cursor:pointer;padding:4px}
.field input[type="range"]{accent-color:var(--primary)}
.row{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.row .field{margin-bottom:0}
.check{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text);cursor:pointer;padding:10px 0}
.check input{accent-color:var(--primary);width:16px;height:16px}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.actions .btn{padding:10px 14px;font-size:13px}
.status{font-size:13px;color:var(--muted);min-height:18px;margin:10px 0 0}
.status.error{color:#ff7d7d}
.status.success{color:#7dffae}
.hint{font-size:12px;color:var(--muted)}

/* preview */
.preview-frame{
  background:white;border-radius:12px;min-height:260px;display:flex;align-items:center;justify-content:center;
  padding:24px;position:relative;overflow:hidden;
  background-image:
    linear-gradient(45deg,#f3f4ff 25%,transparent 25%),
    linear-gradient(-45deg,#f3f4ff 25%,transparent 25%),
    linear-gradient(45deg,transparent 75%,#f3f4ff 75%),
    linear-gradient(-45deg,transparent 75%,#f3f4ff 75%);
  background-size:20px 20px;
  background-position:0 0,0 10px,10px -10px,-10px 0;
}
.preview-frame svg, .preview-frame canvas{max-width:100%;height:auto;background:white;padding:8px;border-radius:6px}
.preview-meta{display:flex;justify-content:space-between;margin-top:14px;font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--muted);letter-spacing:.5px}

/* ---------- Features ---------- */
.grid-features{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:transform .3s, border-color .3s, box-shadow .3s;position:relative;overflow:hidden}
.feature::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:0;transition:opacity .3s;border-radius:var(--radius);z-index:0}
.feature:hover{transform:translateY(-6px);border-color:transparent;box-shadow:0 30px 60px -30px rgba(124,92,255,.4)}
.feature:hover::before{opacity:.08}
.feature .ic{font-size:28px;margin-bottom:10px;position:relative;z-index:1}
.feature h3{margin:0 0 6px;font-size:17px;position:relative;z-index:1}
.feature p{margin:0;color:var(--muted);font-size:14px;position:relative;z-index:1}

/* ---------- Types ---------- */
.grid-types{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.type{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius);padding:22px;transition:transform .3s, background .3s}
.type:hover{transform:translateY(-4px);background:var(--surface)}
.type h4{margin:0 0 6px;font-size:18px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.type p{margin:0;color:var(--muted);font-size:14px}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
.lead-sm{color:var(--muted);font-size:16px;margin-bottom:24px}
.brand-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:50px 30px;text-align:center;overflow:hidden;box-shadow:var(--shadow-lg)}
.brand-glow{position:absolute;inset:-2px;background:var(--grad);filter:blur(40px);opacity:.25;z-index:0}
.brand-big{position:relative;z-index:1;font-size:64px;font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:2px}
.brand-tag{position:relative;z-index:1;font-size:13px;color:var(--muted);letter-spacing:3px;text-transform:uppercase;margin-top:6px}
.brand-line{position:relative;z-index:1;width:60px;height:3px;background:var(--grad);margin:18px auto;border-radius:3px}
.brand-card p{position:relative;z-index:1;color:var(--text);margin:0;font-size:15px}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--border);padding:36px 0;margin-top:40px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.footer p{color:var(--muted);font-size:13px;margin:6px 0 0}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{color:var(--muted);font-size:14px;transition:color .2s}
.footer-links a:hover{color:var(--text)}

/* ---------- Floating WhatsApp ---------- */
.fab-wa{
  position:fixed;right:22px;bottom:22px;width:58px;height:58px;border-radius:50%;
  background:linear-gradient(135deg,#25d366,#128c7e);color:white;display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 30px -5px rgba(37,211,102,.6);z-index:60;transition:transform .25s;
  animation:pulseRing 2.4s infinite;
}
.fab-wa:hover{transform:scale(1.08)}
@keyframes pulseRing{
  0%{box-shadow:0 0 0 0 rgba(37,211,102,.6)}
  70%{box-shadow:0 0 0 18px rgba(37,211,102,0)}
  100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}
}

/* ---------- Reveal on scroll ---------- */
/* JS adds .js-ready to <html> when scroll-reveal is active.
   Without JS (or before JS runs), content stays fully visible. */
.js-ready .reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease, transform .8s ease}
.js-ready .reveal.visible{opacity:1;transform:none}

/* ---------- Print ---------- */
@media print{
  body *{visibility:hidden}
  .preview-frame, .preview-frame *{visibility:visible}
  .preview-frame{position:absolute;left:0;top:0;width:100%;background:white !important;background-image:none !important}
}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .hero-grid,.studio,.about-grid{grid-template-columns:1fr;gap:40px}
  .grid-features{grid-template-columns:repeat(2,1fr)}
  .grid-types{grid-template-columns:repeat(2,1fr)}
  .nav-links{display:none}
}
@media (max-width:560px){
  .grid-features,.grid-types{grid-template-columns:1fr}
  .row{grid-template-columns:1fr}
  .hero{padding:50px 4% 30px}
  .section{padding:60px 0}
  .hero-stats{gap:20px}
}