body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f6f7f9;
  color: #1f2937;
}
a { color: #0f766e; text-decoration: none; }
.top {
  background: #111827;
  color: white;
  padding: 16px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand { color: white; font-size: 22px; font-weight: 700; margin-right: 12px; }
nav a { color: #d1fae5; margin-left: 18px; }
.wrap { max-width: 1100px; margin: 28px auto; padding: 0 20px; }
.hero {
  background: white;
  border-radius: 16px;
  padding: 34px;
  box-shadow: 0 8px 22px rgba(0,0,0,.06);
}
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); gap: 18px; }
.card {
  background: white;
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 6px 16px rgba(0,0,0,.06);
}
.price { font-size: 22px; font-weight: 700; }
.btn {
  display: inline-block;
  background: #0f766e;
  color: white;
  border: 0;
  border-radius: 9px;
  padding: 10px 14px;
  cursor: pointer;
}
.btn-danger { background: #b91c1c; }
.pill {
  background: #2563eb;
  color: white;
  font-size: 12px;
  padding: 4px 9px;
  border-radius: 999px;
}
.notice {
  background: #ecfeff;
  border-left: 5px solid #0891b2;
  padding: 14px;
  margin: 18px 0;
}
pre {
  background: #111827;
  color: #d1fae5;
  padding: 16px;
  border-radius: 12px;
  overflow: auto;
}
input {
  padding: 10px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
}
.foot {
  margin-top: 50px;
  padding: 18px 28px;
  color: #475569;
  background: #e5e7eb;
  font-size: 13px;
}