* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background: #f7f8fa;
  color: #111;
}

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  background: #ffffff;
  border-right: 1px solid #e5e7eb;
  padding: 24px;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  color: #0066ff;
  margin-bottom: 40px;
}

.sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar a {
  padding: 10px 12px;
  border-radius: 8px;
  color: #555;
  text-decoration: none;
}

.sidebar .active {
  background: #0066ff;
  color: white;
}

.main {
  flex: 1;
  padding: 32px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

button {
  background: #0066ff;
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
}

.cards {
  display: flex;
  gap: 20px;
  margin: 32px 0;
}

.card {
  background: white;
  padding: 24px;
  border-radius: 12px;
  flex: 1;
  border: 1px solid #e5e7eb;
}

.card h3 {
  margin-top: 0;
  font-size: 14px;
  color: #666;
}

.card p {
  font-size: 32px;
  font-weight: 700;
}

.table {
  background: white;
  padding: 24px;
  border-radius: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 14px;
  border-bottom: 1px solid #eee;
  text-align: left;
}