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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f4f6f8;
  color: #1a1a1a;
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid #e1e4e8;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-size: 1.8rem;
  color: #2e7d32;
}

.tagline {
  color: #666;
  font-size: 0.9rem;
}

nav a {
  margin-left: 1.5rem;
  color: #2e7d32;
  text-decoration: none;
  font-weight: 500;
}

nav a:hover {
  text-decoration: underline;
}

.login-box {
  max-width: 400px;
  margin: 3rem auto;
  background: #fff;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.login-box h2 {
  margin-bottom: 1.5rem;
  text-align: center;
}

.login-box label {
  display: block;
  margin-top: 1rem;
  font-weight: 500;
  font-size: 0.9rem;
}

.login-box input {
  width: 100%;
  padding: 0.7rem;
  margin-top: 0.3rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1rem;
}

.btn-primary {
  background: #1565c0;
  color: #fff;
  padding: 0.8rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  margin-top: 1.5rem;
  width: 100%;
}

.btn-primary:hover {
  background: #256628;
}

.footer-text {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: #666;
}

.footer-text a {
  color: #2e7d32;
}

#welcome {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.timestamp {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.card h3 {
  color: #666;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.card-number {
  font-size: 2.2rem;
  font-weight: 700;
  color: #2e7d32;
  margin-bottom: 0.3rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.product-card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: transform 0.2s;
}

.product-card:hover {
  transform: translateY(-3px);
}

.product-emoji {
  font-size: 4rem;
  margin-bottom: 0.5rem;
}

.price {
  color: #2e7d32;
  font-weight: 700;
  margin: 0.5rem 0 1rem;
}

.footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 2px solid #e1e4e8;
  text-align: center;
  color: #666;
  font-size: 0.9rem;
}