:root {
  --brand: #FF5A5F;
  --bg: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --card: #f8fafc;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: auto;
  padding: 20px;
}

header {
  padding: 20px 0;
}

.hero {
  text-align: center;
  padding: 60px 20px;
}

.hero h1 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.hero p {
  color: var(--muted);
  margin-bottom: 30px;
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 600;
}

.section {
  padding: 60px 20px;
  text-align: center;
}

.features {
  display: grid;
  gap: 20px;
}

.card {
  background: var(--card);
  padding: 30px;
  border-radius: 16px;
}

footer {
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

@media(min-width:768px){
  .hero h1 { font-size: 2.8rem; }
  .features { grid-template-columns: repeat(3,1fr); }
}