body {
  font-family: Arial, sans-serif;
  background: #ffffff;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 1000px;
  margin: 30px auto;
  background: #ffffff;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

h1, h2, h3 {
  text-align: center;
  color: #333;
}

form {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

input, select, button {
  padding: 8px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 14px;
}

button {
  background: #007bff;
  color: white;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #0056b3;
}

ul {
  list-style: none;
  padding: 0;
}

ul li {
  background: #f9f9f9;
  margin: 6px 0;
  padding: 10px;
  border-radius: 6px;
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}

.year-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 25px;
  font-size: 13px;
}

.year-table th, .year-table td {
  border: 1px solid #ddd;
  padding: 6px;
  text-align: center;
}

.year-table th {
  background: #007bff;
  color: white;
}

.month-title {
  background: #28a745;
  color: white;
}

.charts-wrapper, #charts-summary {
  display: flex;
  flex-direction: column;
  gap: 30px;
  margin-top: 20px;
}

.chart-box {
  width: 100%;
}

canvas {
  max-width: 100%;
  margin: 10px 0;
}