:root { font-family: Arial, Helvetica, sans-serif; }

body { margin: 0; background: #f6f7fb; color: #111; }

.container { max-width: 1100px; margin: 0 auto; padding: 18px; }

.header {
  display: flex; justify-content: space-between; align-items: center;
  background: #fff; border: 1px solid #e7e7e7;
  padding: 14px 16px; border-radius: 12px;
}

.brand { font-weight: 700; }

.nav a { text-decoration: none; color: #111; margin-left: 12px; }

.main { margin-top: 16px; }

.card {
  background: #fff; border: 1px solid #e7e7e7;
  border-radius: 12px; padding: 18px;
}

.footer { margin-top: 16px; color: #444; }