* {
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

body {
  margin: 0;
  background: #f4f6f8;
  color: #333;
}

header {
  background: #1f2937;
  color: #fff;
  padding: 16px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header a {
  color: #9ca3af;
  text-decoration: none;
  margin-left: 20px;
}

.container {
  max-width: 1100px;
  margin: 60px auto;
  padding: 0 20px;
}

.card {
  background: #fff;
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

h1, h2 {
  margin-top: 0;
}

button {
  background: #2563eb;
  color: #fff;
  border: none;
  padding: 12px 18px;
  border-radius: 6px;
  cursor: pointer;
}

input {
  width: 100%;
  padding: 12px;
  margin-top: 10px;
  margin-bottom: 20px;
  border-radius: 6px;
  border: 1px solid #ccc;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.stat {
  padding: 20px;
  background: #f9fafb;
  border-radius: 6px;
}