:root{
  --bg:#fbfbfb;
  --muted:#666;
  --accent:#0a9a61;
  --card:#fff;
  --max:1100px;
  --gap:18px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: light;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;background:var(--bg);color:#111}
.container{max-width:var(--max);margin:0 auto;padding:0 18px}
.site-header{background:linear-gradient(180deg,rgba(255,255,255,0.8),rgba(255,255,255,0.6));backdrop-filter:blur(6px);border-bottom:1px solid #eee}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.logo{font-weight:700;color:var(--accent);text-decoration:none;font-size:18px}
.top-nav a{margin-left:16px;color:var(--muted);text-decoration:none;font-size:14px}

/* Hero */
.hero{padding:28px 0}
.hero-inner{display:flex;gap:var(--gap);align-items:stretch;flex-wrap:wrap}
.hero-left{flex:1;min-width:260px}
.hero-right{width:320px;min-width:260px}
h1{margin:0 0 10px;font-size:28px;line-height:1.05}
.lead{margin:0 0 18px;color:var(--muted);font-size:15px}

/* Form */
.signup-form{background:var(--card);padding:16px;border-radius:12px;box-shadow:0 6px 18px rgba(20,30,40,0.06);max-width:420px}
.signup-form label{display:block;font-size:13px;margin-top:8px;color:#333}
.signup-form input, .signup-form select{width:100%;padding:12px;border-radius:8px;border:1px solid #e6e6e6;margin-top:6px;font-size:15px}
.btn-primary{display:inline-block;margin-top:12px;width:100%;padding:12px;border-radius:10px;border:0;background:linear-gradient(90deg,var(--accent),#0cc57b);color:#fff;font-weight:600;font-size:16px;cursor:pointer}
.small{font-size:12px;color:var(--muted);margin-top:8px}

/* Preview card */
.preview-card{background:var(--card);border-radius:12px;overflow:hidden;box-shadow:0 10px 30px rgba(20,30,40,0.06)}
.preview-card img{width:100%;height:160px;object-fit:cover;display:block}
.card-body{padding:12px}
.metric{display:flex;align-items:baseline;gap:8px}
.metric strong{font-size:22px;color:var(--accent)}
.metric span{font-size:13px;color:var(--muted)}
.status{font-size:13px;color:var(--muted);margin-top:8px}

/* Features */
.features{padding:20px 0}
.features h2{margin:0 0 12px;font-size:20px}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.feature{background:var(--card);padding:14px;border-radius:10px;border:1px solid #f0f0f0}

/* FAQ */
.faq{padding:18px 0}
details{background:var(--card);padding:12px;border-radius:10px;border:1px solid #f0f0f0;margin-bottom:10px}
summary{font-weight:600;cursor:pointer}

/* Footer */
.site-footer{padding:14px 0;border-top:1px solid #f0f0f0;margin-top:18px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:12px}
.footer-links a{margin-left:12px;color:var(--muted);text-decoration:none;font-size:13px}

/* Responsive */
@media (max-width:720px){
  .hero-inner{flex-direction:column-reverse;align-items:stretch}
  .hero-right{width:100%}
  .footer-inner{flex-direction:column;align-items:flex-start}
}