body {
  font-family: Arial, sans-serif;
  background: #dfe3e8;
  margin: 0;
}

/* căn giữa toàn bộ */
.container {
  max-width: 900px;
  margin: 80px auto;
  text-align: center;
}

/* tiêu đề */
h1 {
  margin-bottom: 10px;
}

p {
  color: #555;
  margin-bottom: 30px;
}

/* bảng */
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.task-list a:hover {
  background: #eee;
}

/* header */
thead {
  background: #eee;
}

th,
td {
  padding: 12px;
  border: 1px solid #ccc;
}

/* hover */
tr:hover {
  background: #f5f5f5;
}

/* link */
a {
  color: blue;
}