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

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: #f0f4f3;
  color: #1a1a1a;
}

header {
  background: #0F6E56;
  color: white;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

header h1 {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}