:root{
  --max-width:1200px;
  --accent:#0b74ff;
  --muted:#666;
  --bg:#f7f8fb;
  --card:#ffffff;
  --radius:12px;
  --gap:20px;
  font-family: Inter,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:#0b0b0b;
}

/* Basic resets */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
  font-size:16px;
}

/* container */
.container{
  width:90%;
  max-width:var(--max-width);
  margin:0 auto;
}

/* Header */
.site-header{
  background:linear-gradient(90deg, rgba(11,116,255,0.06), transparent);
  border-bottom:1px solid rgba(0,0,0,0.04);
  position:sticky;
  top:0;
  z-index:50;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 0}
.logo{height:44px}
.nav a{margin-left:18px;color:var(--muted);text-decoration:none;font-weight:600}
.nav a:hover{color:var(--accent)}

/* Hero */
.hero{padding:48px 0;display:flex;align-items:center}
.hero-inner{display:flex;gap:24px;align-items:stretch}
.hero-text{flex:1;padding:24px 0}
.hero-text h1{font-size:34px;margin:0 0 12px}
.hero-text p{color:var(--muted);margin:0 0 18px}
.btn{display:inline-block;padding:12px 18px;border-radius:10px;text-decoration:none;font-weight:700}
.btn.primary{background:var(--accent);color:white}
.hero-card{width:320px;align-self:center}
.card{background:var(--card);padding:18px;border-radius:12px;box-shadow:0 6px 18px rgba(15,15,15,0.06)}
.card h3{margin:0 0 8px}
.stats{display:flex;flex-direction:column;gap:8px;margin-top:10px}
.stats div{display:flex;justify-content:space-between;background:#f3f6ff;padding:8px;border-radius:8px;font-weight:600}

/* Video */
.video-section{padding:40px 0}
.video-wrap{margin-top:14px;border-radius:12px;overflow:hidden;box-shadow:0 8px 24px rgba(11,116,255,0.06)}

/* Steps */
.steps{padding:40px 0}
.steps h2{margin-bottom:8px}
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:18px}
.step{background:var(--card);padding:16px;border-radius:12px;box-shadow:0 6px 18px rgba(10,10,10,0.03)}
.step img{width:100%;height:130px;object-fit:cover;border-radius:8px;margin-bottom:12px}
.step-num{position:absolute;background:var(--accent);color:white;height:36px;width:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;margin-top:-8px;margin-left:8px}
.step h3{margin:0 0 8px;font-size:18px}
.step p{margin:0;color:var(--muted)}

/* result box */
.result-box{padding:24px 0}
.box{background:linear-gradient(180deg,#fff,#fbfdff);padding:20px;border-radius:12px;box-shadow:0 10px 30px rgba(11,116,255,0.04)}
.stats-inline{display:flex;gap:14px;margin-top:12px}
.stats-inline div{background:#f6faff;padding:10px;border-radius:8px;min-width:140px;display:flex;flex-direction:column;align-items:flex-start}

/* Footer */
.site-footer{padding:20px 0;border-top:1px solid rgba(0,0,0,0.04);background:transparent}
.footer-inner{display:flex;gap:20px;align-items:flex-start;justify-content:space-between}
.logo-sm{height:30px}

/* Responsive */
@media (max-width:900px){
  .hero-inner{flex-direction:column}
  .hero-card{width:100%}
  .footer-inner{flex-direction:column;gap:12px}
}