/* Basic variables and theme */
:root{
  --bg:linear-gradient(145deg,#eef2ff 0%,#f6fff8 40%,#f2f6ff 100%);
  --card:#ffffff;
  --text:#0b2340;
  --muted:#566575;
  --accent:#1f6feb;
  --accent-2:#00b7c2;
  --line:rgba(11,35,64,0.08);
  --shadow:0 20px 60px rgba(8,20,40,0.08);
}
.dark{
  --bg:linear-gradient(145deg,#050d1f 0%,#08152c 35%,#0b1f3a 100%);
  --card:#0e1b34;
  --text:#e8f0fb;
  --muted:#9fb0c8;
  --accent:#5aa2ff;
  --accent-2:#4dd6ff;
  --line:rgba(255,255,255,0.07);
  --shadow:0 20px 60px rgba(0,0,0,0.35);
}
@media (prefers-color-scheme: dark){
  :root:not(.dark){
    --bg:linear-gradient(145deg,#050d1f 0%,#08152c 35%,#0b1f3a 100%);
    --card:#0e1b34;
    --text:#e8f0fb;
    --muted:#9fb0c8;
    --accent:#5aa2ff;
    --accent-2:#4dd6ff;
    --line:rgba(255,255,255,0.07);
    --shadow:0 20px 60px rgba(0,0,0,0.35);
  }
}

/* Reset */
*{box-sizing:border-box}
body{margin:0;font-family:'Space Grotesk','Segoe UI',system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;min-height:100vh;}
.wrap{max-width:1180px;margin:0 auto;padding:18px}
a{text-decoration:none;color:inherit}

/* Header */
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,0.32);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);box-shadow:0 10px 30px rgba(0,0,0,0.04)}
.dark .site-header{background:rgba(10,20,40,0.55)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;gap:12px;align-items:center}
.logo{font-size:20px}
.title{font-weight:800}
.subtitle{font-size:12px;color:var(--muted)}
.nav-links{display:flex;gap:14px;align-items:center;font-weight:600;color:var(--muted)}
.nav-links a{padding:8px 12px;border-radius:10px}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,0.5);box-shadow:0 6px 16px rgba(8,20,40,0.08)}
.header-actions{display:flex;gap:10px;align-items:center}
.icon-btn{display:flex;align-items:center;gap:6px;padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:var(--card);cursor:pointer;font-weight:700;color:var(--text);box-shadow:0 8px 20px rgba(8,20,40,0.06)}
.icon-btn:hover{transform:translateY(-2px)}
.icon-btn i{color:var(--accent)}
.btn-label{font-size:13px;color:var(--muted)}

/* Hero */
.hero{display:grid;grid-template-columns:2fr 1fr;align-items:center;gap:24px;padding:0px 18px 6px 18px}
.hero-text h1{margin:8px 0;font-size:32px;line-height:1.2}
.hero-text .lede{color:var(--muted);max-width:640px}
.eyebrow{letter-spacing:0.08em;text-transform:uppercase;font-size:12px;color:var(--accent);margin:0}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.hero-badges span{padding:8px 12px;border-radius:999px;border:1px dashed var(--line);font-size:12px;color:var(--muted);background:rgba(255,255,255,0.5)}
.hero-preview{display:flex;flex-direction:column;gap:10px;align-items:flex-start;box-shadow:var(--shadow)}
.mini-label{font-size:12px;color:var(--muted)}
.mini-qr{display:flex;flex-direction:column;align-items:center;gap:8px;width:100%}
.mini-qr canvas{width:140px;height:140px;border-radius:8px;background:#fff;border:1px solid var(--line)}
.mini-copy{font-size:12px;color:var(--muted)}

/* Layout */
.main-grid{display:grid;grid-template-columns:1fr 420px;gap:20px;margin-top:18px}

/* Layout */
.card{background:var(--card);border-radius:14px;padding:16px;border:1px solid var(--line);box-shadow:var(--shadow)}
.section-title{font-weight:700;margin:0 0 10px 0}

/* Icon grid */
.icon-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px}
@media(min-width:600px){.icon-grid{grid-template-columns:repeat(4,1fr)}}
.type-btn{
  display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:12px;border-radius:10px;border:1px solid var(--line);background:transparent;cursor:pointer;
  transition:transform .12s ease,box-shadow .12s;
}
.type-btn:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgba(8,20,40,0.06)}
.type-btn .icon{font-size:18px;color:var(--accent)}
.type-btn .label{font-weight:700;font-size:13px}
.type-btn .sub{font-size:12px;color:var(--muted);margin-top:4px}
.type-btn.active{background:linear-gradient(90deg,var(--accent)22%,rgba(255,255,255,0));color:#fff;border-color:transparent;box-shadow:0 10px 30px rgba(37,99,235,0.12)}
.type-btn.active .icon{color:#fff}

/* Form */
.form .card-inner{padding:0}
.form label{font-size:13px;color:var(--muted);display:block;margin-bottom:6px}
.form input[type=text], .form input[type=url], .form input[type=email], .form textarea, .form select{
  width:100%;padding:10px;border-radius:8px;border:1px solid var(--line);background:transparent;color:var(--text);outline:none;margin-bottom:10px;
}
.form textarea{min-height:100px;resize:vertical}
.actions{display:flex;gap:10px;margin-top:10px}
.btn{padding:10px 14px;border-radius:8px;font-weight:700;border:0;cursor:pointer}
.btn.primary{background:var(--accent);color:#fff}
.btn.outline{background:transparent;border:2px solid var(--accent);color:var(--accent)}
.btn.primary:hover{filter:brightness(1.05)}
.btn.outline:hover{background:var(--accent);color:#fff}

/* Preview */
.preview-card .qr-wrap{display:flex;align-items:center;justify-content:center;padding:12px;background:linear-gradient(180deg,rgba(0,0,0,0.02),transparent);border-radius:8px}
.qr-wrap canvas{width:300px;height:300px;border-radius:6px;background:#fff}
.muted{color:var(--muted);font-size:13px}

/* Manual */
.howto summary{cursor:pointer;padding:8px;border-radius:8px;border:1px dashed var(--line);margin-top:12px}
.manual{padding:10px 0;color:var(--muted);font-size:13px}
.manual ol{padding-left:18px}

/* Info cards */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin:26px auto}
.info-card ul{padding-left:18px;color:var(--muted)}
.inline-link{color:var(--accent);font-weight:700;font-size:13px}
.inline-link:hover{color:var(--text)}
.contact-links{display:flex;flex-direction:column;gap:8px;margin-top:8px}
.contact-links a{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:600}
.contact-links a:hover{color:var(--text)}
.stats-card .stats-row{display:flex;gap:18px;margin-top:10px}
.stat-label{font-size:12px;color:var(--muted)}
.stat-number{font-size:26px;font-weight:800}

/* Footer */
.site-footer{margin-top:14px;padding:12px 0 16px 0;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;align-items:start}
.footer-heading{font-weight:700;color:var(--text);margin-bottom:6px}
.footer-logo{font-weight:800;color:var(--text)}
.footer-grid a{display:block;color:var(--muted);margin:4px 0}
.footer-grid a:hover{color:var(--text)}
.footer-meta{align-self:end;font-size:12px;color:var(--muted)}

/* Accessibility */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Responsive */
@media(max-width:980px){
  .nav-links{display:none}
  .hero{grid-template-columns:1fr}
  .main-grid{grid-template-columns:1fr;}
  .mini-qr{align-items:flex-start}
}
@media(max-width:640px){
  .wrap{padding:14px}
  .actions{flex-direction:column}
  .btn{width:100%;text-align:center}
}