/* Z-H-H QR Studio — by Zeeshan Haider */
*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#0b0418;
  --bg-2:#140828;
  --surface:#1a0b2e;
  --surface-2:#231041;
  --border:rgba(255,255,255,.08);
  --text:#f5f3ff;
  --muted:#a89dc4;
  --primary:#7c3aed;
  --primary-2:#c026d3;
  --accent:#22d3ee;
  --grad:linear-gradient(135deg,#7c3aed 0%,#c026d3 50%,#22d3ee 100%);
  --shadow:0 20px 60px -20px rgba(124,58,237,.5);
  --radius:18px;
}
html,body{margin:0;padding:0}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
img{max-width:100%}

/* NAV */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(20px);background:rgba(11,4,24,.7);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 24px}
.brand{display:flex;align-items:baseline;gap:8px}
.brand-mark{font-weight:900;font-size:22px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:1px}
.brand-tag{font-size:13px;color:var(--muted);font-weight:500}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-links a{color:var(--muted);font-size:14px;font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--text)}
.wa{color:#fff !important;display:inline-flex;align-items:center;gap:8px}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:12px;font-weight:600;font-size:14px;border:none;cursor:pointer;transition:all .25s;font-family:inherit}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 25px 70px -15px rgba(192,38,211,.6)}
.btn-outline{background:transparent;color:var(--text);border:1.5px solid var(--border)}
.btn-outline:hover{border-color:var(--primary);background:rgba(124,58,237,.1)}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{background:rgba(255,255,255,.1)}

/* HERO */
.hero{position:relative;padding:80px 0 100px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:
  radial-gradient(ellipse at 20% 20%,rgba(124,58,237,.4),transparent 50%),
  radial-gradient(ellipse at 80% 60%,rgba(192,38,211,.3),transparent 50%),
  radial-gradient(ellipse at 50% 100%,rgba(34,211,238,.2),transparent 50%);
  z-index:0;animation:float 20s ease-in-out infinite}
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(-20px,20px)}}
.hero-inner{position:relative;z-index:1;text-align:center;max-width:840px;margin:0 auto}
.pill{display:inline-block;padding:6px 16px;border-radius:999px;background:rgba(124,58,237,.15);border:1px solid rgba(124,58,237,.3);color:#d8b4fe;font-size:13px;font-weight:500;margin-bottom:24px}
.title{font-size:clamp(36px,6vw,64px);font-weight:900;line-height:1.1;letter-spacing:-1.5px;margin:0 0 20px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.subtitle{font-size:clamp(16px,2vw,19px);color:var(--muted);max-width:640px;margin:0 auto 36px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:48px}
.hero-stats{display:flex;justify-content:center;gap:48px;flex-wrap:wrap}
.hero-stats>div{text-align:center}
.hero-stats strong{display:block;font-size:24px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800}
.hero-stats span{font-size:13px;color:var(--muted)}

/* SECTIONS */
.section{padding:80px 0;position:relative}
.section.alt{background:var(--bg-2)}
.section-head{text-align:center;margin-bottom:48px}
.section-head h2{font-size:clamp(28px,4vw,42px);font-weight:800;margin:0 0 12px;letter-spacing:-1px}
.section-head p{color:var(--muted);font-size:17px;margin:0}

/* TABS */
.tabs{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:32px}
.tab{padding:10px 18px;border-radius:10px;background:var(--surface);border:1px solid var(--border);color:var(--muted);font-weight:500;font-size:14px;cursor:pointer;transition:all .2s;font-family:inherit}
.tab:hover{color:var(--text);border-color:var(--primary)}
.tab.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 24px -8px rgba(124,58,237,.6)}

/* STUDIO */
.studio{display:grid;grid-template-columns:1fr 380px;gap:24px;align-items:start}
@media (max-width:900px){.studio{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.form-card label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin:14px 0 6px}
.form-card label.row{display:flex;align-items:center;gap:8px;margin-top:14px;color:var(--text)}
.form-card input[type=text],.form-card input[type=url],.form-card textarea,.form-card select,.form-card input:not([type=color]):not([type=range]):not([type=checkbox]){
  width:100%;padding:12px 14px;background:var(--bg);border:1px solid var(--border);border-radius:10px;color:var(--text);font-size:14px;font-family:inherit;transition:border .2s,background .2s}
.form-card input:focus,.form-card textarea:focus,.form-card select:focus{outline:none;border-color:var(--primary);background:var(--bg-2)}
.form-card textarea{resize:vertical}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:520px){.grid2{grid-template-columns:1fr}}
.panel{display:none}
.panel.active{display:block;animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.customize{margin-top:28px;padding-top:24px;border-top:1px dashed var(--border)}
.customize h4{margin:0 0 12px;font-size:15px}
.customize input[type=color]{width:100%;height:42px;border-radius:10px;border:1px solid var(--border);background:var(--bg);cursor:pointer;padding:4px}
.customize input[type=range]{width:100%;accent-color:var(--primary)}

/* PREVIEW */
.preview-card{position:sticky;top:90px;text-align:center}
.qr-frame{background:#fff;padding:20px;border-radius:14px;display:inline-block;margin-bottom:20px;box-shadow:0 12px 40px -12px rgba(0,0,0,.5)}
.qr-frame canvas{display:block;max-width:100%;height:auto !important}
.actions{display:flex;flex-direction:column;gap:10px}
.hint{margin-top:14px;font-size:12px;color:var(--muted)}

/* FEATURES */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.feature{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:transform .25s,border .25s}
.feature:hover{transform:translateY(-4px);border-color:var(--primary)}
.feature .ico{font-size:32px;margin-bottom:14px}
.feature h3{margin:0 0 8px;font-size:18px;font-weight:700}
.feature p{margin:0;color:var(--muted);font-size:14px}

/* ABOUT */
.about{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}
@media (max-width:800px){.about{grid-template-columns:1fr}}
.about h2{font-size:clamp(28px,4vw,42px);margin:14px 0 20px;letter-spacing:-1px}
.about p{color:var(--muted);font-size:16px;margin-bottom:24px}
.about-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:36px;text-align:center}
.avatar{width:88px;height:88px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:800;color:#fff;margin:0 auto 16px;box-shadow:var(--shadow)}
.about-card h3{margin:0 0 4px;font-size:20px}
.about-card .muted{margin:0 0 14px}
.muted{color:var(--muted)}

/* FOOTER */
.footer{padding:40px 0;border-top:1px solid var(--border);background:var(--bg-2)}
.footer-inner{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center}
.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)}
.small{font-size:13px;margin-top:6px}

/* mobile nav */
@media (max-width:640px){
  .nav-links a:not(.wa){display:none}
  .hero{padding:60px 0 80px}
  .hero-stats{gap:24px}
  .preview-card{position:static}
}