/* Reset some default styles */
body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background-color: #d1d5db;
  margin-bottom: 0;
}
/* default td font size */
td {
  font-size: 14px;
  color: black;
}

th {
  color: #495057;
  font-size: 16px;
}

.navigation {
  padding: 0;
  margin: 0;
}

.navigation .home-link a {
  font-size: 20px;
  text-decoration: underline;
  font-weight: bold;
  float: left;
  margin-left: 10px;
  color: #1e3a8a;
  padding-top: 40px;
}

.navigation .home-link a:hover {
  color: #2563eb;
}

.navigation .login-logout a {
  font-size: 20px;
  text-decoration: underline;
  font-weight: bold;
  float: right;
  margin-right: 10px;
  color: #1e3a8a;
  padding-top: 40px;
}

.navigation .login-logout .profilename a:hover {
  color: #2563eb;
}

/* Main content styles */
.main-content {
  background-color: darkgray;
  padding: 20px;
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  text-align: center;
  /*margin-bottom: 50px; */
}

.button-grid {
  display: flex;
  max-width: fit-content;
  text-align: center;
  flex-wrap: wrap;
  flex-direction: column;
  margin: auto;
  margin-bottom: 16px;
}

.button-row {
  display: flex;
  justify-content: space-between;
}

.action-button {
  background-color: #1e3a8a;
  color: #fff;
  font-weight: bold;
  padding: 16px 24px;
  margin: 8px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  font-size: 16px;
  width: 100%;
  text-align: center;
}

.action-button:hover {
  background-color: #2563eb;
}

.centered {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}

.instructor-button {
  background-color: #1e3a8a;
  color: #fff;
  font-weight: bold;
  padding: 16px 24px;
  margin: 10px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  font-size: 16px;
  width: 50%;
  text-align: center;
  margin-bottom: 40px;
}

.instructor-button:hover {
  background-color: #2563eb;
}

/* Admin score-sets section */
.admin-score-sets {
  padding: 20px;
  margin-top: 20px;
}

.admin-score-sets h3 {
  margin-top: 0;
  color: #1e3a8a;
}

.admin-score-sets table {
  width: 100%;
  border-collapse: collapse;
}

.admin-score-sets th, .admin-score-sets td {
  border: 1px solid #e2e8f0;
  padding: 10px;
  text-align: left;
}

.admin-score-sets th {
  background-color: #e2e8f0;
}

.admin-score-sets td {
  background-color: #f8fafc;
}

.admin-score-sets th,
.admin-score-sets td {
  text-align: left;
  padding: 12px 15px;
  border: 1px solid #dee2e6;
}

.admin-score-sets th {
  background-color: #dbedff;
  color: #495057;
}

/* Total rows */
tr.total-row td {
  background: #e0edfd;
  font-weight: bold;
}

/* Floating arrow and tooltip styles */
.floating-arrow {
  position: relative;
  display: inline-block;
}

.floating-arrow::before {
  content: "→";
  position: absolute;
  left: -40px;
  top: 50%;
  transform: translateY(-50%);
  color: #dc2626;
  font-size: 24px;
  font-weight: bold;
  animation: pulse 2s infinite;
  z-index: 10;
}

.floating-arrow::after {
  content: "Quick Functionality Demo";
  position: absolute;
  left: -200px;
  top: 50%;
  transform: translateY(-50%);
  background-color: #dc2626;
  color: white;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: bold;
  white-space: nowrap;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.floating-arrow::after::before {
  content: "";
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  border-left: 6px solid #dc2626;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: translateY(-50%) scale(1);
  }
  50% {
    opacity: 0.7;
    transform: translateY(-50%) scale(1.1);
  }
}