body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #f4f0ff;
}

/* Layout */
.container {
  display: flex;
}

/* Sidebar */
.sidebar {
  width: 240px;
  background: linear-gradient(180deg, #6a0dad, #4b0082);
  color: white;
  height: 100vh;
  padding: 20px;
  position: fixed;
}

.logo {
  text-align: center;
  margin-bottom: 20px;
}

.logo img {
  width: 80px;
  border-radius: 50%;
}

.logo h2 {
  font-size: 16px;
}

.sidebar a {
  display: block;
  color: white;
  text-decoration: none;
  margin: 12px 0;
  padding: 10px;
  border-radius: 6px;
}

.sidebar a i {
  margin-right: 10px;
}

.sidebar a:hover {
  background: rgba(255,255,255,0.2);
}

/* Main */
.main {
  margin-left: 260px;
  padding: 20px;
  width: 100%;
}

/* Topbar */
.topbar {
  background: white;
  padding: 15px;
  border-radius: 10px;
  margin-bottom: 20px;
  font-weight: bold;
}

/* Cards */
.cards {
  display: flex;
  gap: 20px;
}

.card {
  background: white;
  padding: 20px;
  border-radius: 12px;
  flex: 1;
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.card i {
  font-size: 28px;
  color: #6a0dad;
}

.card h3 {
  color: #777;
}

.card h2 {
  color: #6a0dad;
}

/* Chart */
canvas {
  width: 100% !important;
  height: 300px !important;
}