body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    background-color: #f5f5f5;
    color: #333;
  }
  
  header {
    background-color: white;
    border-bottom: 4px solid #bb0000;
    padding: 1rem 2rem;
    font-size: 1.4rem;
    font-weight: bold;
    color: #bb0000;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  }
  
  .container {
    display: flex;
    margin: 20px;
  }
  
  /* Accent bars */
.accent-bar {
  height: 6px;
  background-color: #bb0000;
  width: 100%;
}

.top-accent {
  margin-bottom: 0;
}

.bottom-accent {
  margin-top: 3rem;
}

/* Top nav styling */
.main-nav {
  background-color: #f8f8f8;
  border-bottom: 2px solid #bb0000;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.main-nav ul {
  display: flex;
  justify-content: center;
  padding: 0.75rem 1rem;
  margin: 0;
  list-style: none;
  gap: 2rem;
}
.main-nav li a {
  text-decoration: none;
  font-weight: bold;
  color: #333;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  transition: background-color 0.2s;
}
.main-nav li a:hover {
  background-color: #e0e0e0;
}

/* Back to top */
.top-link {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.95rem;
}

.top-link a {
  text-decoration: none;
  color: #bb0000;
  font-weight: bold;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem;
}
.cards {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}
.card {
  background: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  flex: 1 1 45%;
  min-width: 300px;
}
  
  
  .intro {
    text-align: center;
    margin-bottom: 2rem;
  }
  
  .term-status {
    margin-top: 0.5rem;
    color: #555;
  }
  
  .not-enrolled {
    color: #bb0000;
    font-weight: bold;
  }
  
  
  
  .card h2 {
    margin-top: 0;
    border-left: 4px solid #bb0000;
    padding-left: 0.5rem;
    color: #333;
  }
  
  .nav-links {
    margin-top: 2.5rem;
    text-align: center;
    background: #fff;
    padding: 1.2rem 1rem;
    border-radius: 6px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
    border: 1px solid #ddd;
  }
  
  
  .nav-links a {
    display: inline-block;
    margin: 0 1rem;
    text-decoration: none;
    color: #1f1d1d; /* darker crimson */
    font-weight: 700; /* bolder */
    font-size: 1.05rem;
    padding: 0.4rem 0.75rem;
    border-radius: 4px;
    transition: background-color 0.2s, color 0.2s;
  }
  
  
  .nav-links a:hover {
    background-color: #f8dcdc;
    color: #800000;
  }
  .card ul {
    padding-left: 1.2rem;
  }
  
  .card ul li {
    margin-bottom: 0.5rem;
  }
  
  
  footer {
    text-align: center;
    padding: 1rem;
    font-size: 0.85rem;
    color: #777;
    margin-top: 3rem;
  }
  .grade-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    margin-bottom: 10rem;
  }
  
  .grade-table th,
  .grade-table td {
    border: 1px solid #ccc;
    padding: 0.75rem;
    text-align: left;
  }
  
  .grade-table th {
    background-color: #f0f0f0;
    font-weight: bold;
  }
  
  .grade-table .sub-row td {
    background-color: #fafafa;
    font-size: 0.9rem;
    color: #555;
  }
  .gpa-summary {
    background-color: #fff;
    border: 1px solid #ccc;
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  }
  .gpa-summary p {
    margin: 0.25rem 0;
    font-weight: 500;
  }
  .gpa-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.75rem;
    background-color: #fff;
    font-size: 0.95rem;
  }
  
  .gpa-table th,
  .gpa-table td {
    border: 1px solid #ccc;
    padding: 0.6rem 0.75rem;
    text-align: left;
  }
  
  .gpa-table th {
    background-color: #f0f0f0;
    font-weight: bold;
    color: #333;
  }