/* ======== BASIC PAGE STYLING ======== */
body {
  font-family: 'Poppins', sans-serif;
  margin: 0;
  background-color: #f4f7fa;
  color: #333;
  display: flex;
  height: 100vh;
}

/* ======== SIDEBAR MENU ======== */
.sidebar {
  width: 250px;
  background-color: #004aad;
  color: #fff;
  padding: 20px;
}

.sidebar h2 {
  text-align: center;
  margin-bottom: 30px;
}

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

.sidebar ul li {
  margin: 15px 0;
}

.sidebar ul li a {
  color: #fff;
  text-decoration: none;
  display: block;
  padding: 10px;
  border-radius: 5px;
  transition: background 0.3s;
}

.sidebar ul li a:hover {
  background-color: #0066ff;
}

/* ======== MAIN CONTENT ======== */
.main-content {
  flex: 1;
  padding: 30px;
  overflow-y: auto;
}

h1 {
  color: #004aad;
}

/* ======== TABLE STYLE ======== */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

th, td {
  border: 1px solid #ccc;
  padding: 12px;
  text-align: left;
}

th {
  background-color: #004aad;
  color: white;
}

/* ======== SECTION VISIBILITY ======== */
.section {
  display: none;
}

.section.active {
  display: block;
}

/* ======== ASSIGNMENT CARD ======== */
.assignment-card {
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 10px;
  padding: 20px;
  margin: 15px 0;
}

.assignment-card h3 {
  margin: 0 0 10px 0;
  color: #004aad;
}

.assignment-card p {
  margin: 0;
}