body {
  font-family: 'Arial', sans-serif;
  line-height: 1.8;
  margin: 0;
  padding: 0;
  background: #121212;
  color: #e0e0e0;
}

header {
  background: #1f1f1f;
  color: #FFD700;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

header .container {
  position: relative;
}

header h1, header p {
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

header.sticky h1, header.sticky p {
  opacity: 0;
  visibility: hidden;
}

header nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #1f1f1f;
  padding: 10px 0;
}

header nav ul {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
}

header nav ul li {
  margin: 0 10px;
}

header h1 {
  margin: 0;
  font-size: 3.5em;
  font-weight: bold;
}

header p {
  margin: 10px 0 20px;
  font-size: 1.2em;
  color: #e0e0e0;
}

header nav ul li a {
  color: #FFD700;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

header nav ul li a:hover {
  color: #e0e0e0;
}

.section {
  padding: 60px;
  background: linear-gradient(135deg, #1f1f1f, #2a2a2a);
  margin: 30px auto;
  max-width: 1000px;
  border-radius: 20px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.section:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.7);
}

.section h2 {
  margin-top: 0;
  color: #FFD700;
  font-size: 2.8em;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 3px;
  border-bottom: 4px solid #FFD700;
  padding-bottom: 15px;
  margin-bottom: 30px;
}

.section p, .section ul {
  font-size: 1.1em;
  line-height: 1.8;
  color: #e0e0e0;
}

.section ul {
  list-style: square;
  padding-left: 20px;
}

.section ul li {
  margin-bottom: 10px;
}

.section ul li::marker {
  color: #FFD700;
}

ul {
  list-style: square; /* Ensure only the default bullet points are used */
  padding-left: 20px;
}

ul li {
  margin-bottom: 15px;
  position: relative;
}

ul li::before {
  content: none; /* Remove custom bullet points */
}

footer {
  text-align: center;
  padding: 20px 0;
  background: #1f1f1f;
  color: #FFD700;
  font-size: 1em;
}

footer a {
  color: #FFD700;
  text-decoration: none;
  font-weight: bold;
  transition: text-decoration 0.3s ease;
}

footer a:hover {
  text-decoration: underline;
}

.education-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center; /* Center the cards horizontally */
}

.card {
  background: #1f1f1f;
  border: 2px solid #FFD700;
  border-radius: 10px;
  padding: 20px;
  width: calc(45% - 20px); /* Adjust width for two cards per row with spacing */
  max-width: 400px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.5);
}

.card h3 {
  margin-top: 0;
  color: #FFD700;
  font-size: 1.5em;
}

.card .institution {
  font-style: italic;
  color: #e0e0e0;
}

.card .date {
  color: #FFD700;
  font-weight: bold;
  margin-bottom: 10px;
}

.card .thesis {
  background: #FFD700;
  color: #1f1f1f;
  padding: 10px;
  border-radius: 5px;
  font-style: italic;
  margin-bottom: 15px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.card .courses {
  margin-top: 15px;
}

.card .courses h4 {
  color: #FFD700;
  font-size: 1.2em;
  margin-bottom: 10px;
  text-decoration: underline;
}

.card .courses ul {
  list-style: square;
  padding-left: 20px;
}

.card .courses ul li {
  margin-bottom: 8px;
  color: #e0e0e0;
}

/* Responsive design for smaller screens */
@media (max-width: 768px) {
  .education-cards {
    flex-direction: column;
    align-items: center; /* Center the cards vertically */
  }

  .card {
    width: 100%; /* Full width for smaller screens */
  }
}

.notice-board {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  background: #2a2a2a;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  justify-content: center;
  position: relative;
}

.sticky-note {
  background: #FFD700;
  color: #1f1f1f;
  padding: 15px;
  width: 150px;
  height: 150px;
  border-radius: 5px;
  box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
  font-size: 0.9em;
  font-weight: bold;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transform: rotate(calc(var(--rotation, 0) * 1deg)); /* Random rotation */
  transition: transform 0.3s ease;
  font-family: 'Comic Sans MS', cursive, sans-serif; /* Stylish font */
}

.sticky-note:hover {
  transform: rotate(0deg) scale(1.05);
  box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.5);
}

.sticky-note::before {
  content: '';
  position: absolute;
  top: 5px; /* Move the pin inside the sticky note */
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  background: red;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  z-index: 1;
}

.skills-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  background: #1f1f1f;
  border: 2px solid #FFD700;
  border-radius: 5px;
  overflow: hidden;
}

.skills-table th,
.skills-table td {
  padding: 15px;
  text-align: left;
  color: #e0e0e0;
}

.skills-table th {
  background: #FFD700;
  color: #1f1f1f;
  font-weight: bold;
  text-transform: uppercase;
}

.skills-table tr:nth-child(even) {
  background: #2a2a2a;
}

.skills-table tr:hover {
  background: #333;
  transition: background 0.3s ease;
}

.skills-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-top: 20px;
}

.skill-card {
  background: #1f1f1f;
  border: 2px solid #FFD700;
  border-radius: 10px;
  padding: 20px;
  width: calc(30% - 20px); /* Adjust width for three cards per row */
  max-width: 300px;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.5);
}

.skill-card h3 {
  margin-top: 0;
  color: #FFD700;
  font-size: 1.5em;
  margin-bottom: 10px;
}

.skill-card p {
  color: #e0e0e0;
  font-size: 1em;
}

/* Responsive design for smaller screens */
@media (max-width: 768px) {
  .skill-card {
    width: 100%; /* Full width for smaller screens */
  }
}

.certification-cards {
  display: flex;
  flex-direction: column; /* Ensure cards are always stacked vertically */
  gap: 20px;
  margin-top: 20px;
}

.cert-card {
  background: #1f1f1f;
  border: 2px solid #FFD700;
  border-radius: 10px;
  padding: 20px;
  width: 100%; /* Full width for stacked layout */
  max-width: 900px;
  text-align: left;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cert-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.5);
}

.cert-card h3 {
  margin-top: 0;
  color: #FFD700;
  font-size: 1.8em;
  margin-bottom: 15px;
  text-align: center;
}

.cert-card ul {
  list-style: square;
  padding-left: 20px;
  color: #e0e0e0;
}

.cert-card ul li {
  margin-bottom: 15px;
}

.cert-card ul li strong {
  color: #FFD700;
}

.verification-link {
  color: #FFD700;
  text-decoration: none;
  font-size: 0.9em;
  font-style: italic;
}

.verification-link:hover {
  text-decoration: underline;
}

/* Responsive design for smaller screens */
@media (max-width: 768px) {
  .cert-card {
    width: 100%; /* Full width for smaller screens */
  }
}

.experience {
  margin-bottom: 30px;
}

.experience p {
  font-size: 1.1em;
  line-height: 1.6;
  color: #e0e0e0;
}

.experience .date {
  float: right;
  color: #FFD700;
  font-weight: bold;
}

.experience ul {
  list-style: square;
  padding-left: 20px;
  margin-top: 10px;
}

.experience ul li {
  margin-bottom: 10px;
  color: #e0e0e0;
}

.verification-link {
  color: #FFD700;
  text-decoration: none;
  font-style: italic;
}

.verification-link:hover {
  text-decoration: underline;
}

.timeline {
  position: relative;
  margin: 30px 0;
  padding: 0;
  list-style: none;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 6px;
  height: 100%;
  background: linear-gradient(180deg, #FFD700, #e0e0e0);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin: 30px 0;
  width: 45%;
  padding: 20px;
  background: #1f1f1f;
  border: 2px solid #FFD700;
  border-radius: 15px;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.6);
}

.timeline-item:nth-child(odd) {
  left: 0;
}

.timeline-item:nth-child(even) {
  left: 55%;
}

.timeline-icon {
  position: absolute;
  top: 15px;
  left: 50%;
  transform: translateX(-50%);
  background: #FFD700;
  color: #1f1f1f;
  font-size: 1.5em;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.3);
}

.timeline-date {
  position: absolute;
  top: 10px;
  width: 120px;
  text-align: center;
  background: #FFD700;
  color: #1f1f1f;
  font-weight: bold;
  padding: 8px 12px;
  border-radius: 10px;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.3);
}

.timeline-item:nth-child(odd) .timeline-date {
  right: -140px; /* Align time sub-block on the right for left-aligned blocks */
}

.timeline-item:nth-child(even) .timeline-date {
  left: -140px; /* Align time sub-block on the left for right-aligned blocks */
}

.timeline-content {
  padding: 15px 25px;
  color: #e0e0e0;
}

.timeline-content h3 {
  margin-top: 0;
  color: #FFD700;
  font-size: 2em;
  font-weight: bold;
}

.timeline-content .institution {
  font-style: italic;
  color: #e0e0e0;
  margin-bottom: 10px;
}

.timeline-content ul {
  list-style: square;
  padding-left: 25px;
  margin-top: 15px;
}

.timeline-content ul li {
  margin-bottom: 10px;
  color: #e0e0e0;
  transition: color 0.3s ease;
}

.timeline-item:hover ul li {
  color: #FFD700;
}

/* Responsive design for smaller screens */
@media (max-width: 768px) {
  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: 100%;
    left: 0;
    margin-left: 40px;
  }

  .timeline-date {
    left: -160px;
    right: auto;
  }

  .timeline-icon {
    left: 20px;
    transform: translateX(0);
  }
}

.experience-cards {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.experience-card {
  display: flex;
  align-items: flex-start;
  background: linear-gradient(135deg, #1f1f1f, #2a2a2a);
  border: 2px solid #FFD700;
  border-radius: 15px;
  padding: 25px;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}

.experience-card:hover {
  transform: none; /* Removed hover transform effect */
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4); /* Retained static shadow */
  background: linear-gradient(135deg, #1f1f1f, #2a2a2a); /* No hover background change */
}

.experience-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, #FFD700, #e0e0e0);
  opacity: 0.1; /* Static opacity */
}

.experience-icon {
  font-size: 3em;
  margin-right: 25px;
  color: #FFD700;
  transform: none; /* Removed hover transform effect */
}

.experience-card:hover .experience-icon {
  transform: none; /* No hover effect */
}

.experience-content {
  flex: 1;
}

.experience-content h3 {
  margin-top: 0;
  color: #FFD700; /* Yellow color */
  font-size: 2em; /* Increased font size */
  font-weight: bold;
  margin-bottom: 10px;
}

.experience-content .date {
  color: #FFD700;
  font-weight: bold;
  margin-bottom: 15px;
}

.experience-content ul {
  list-style: square;
  padding-left: 25px;
  margin-top: 15px;
}

.experience-content ul li {
  margin-bottom: 10px;
  color: #e0e0e0;
  transition: color 0.3s ease;
}

.experience-card:hover ul li {
  color: #FFD700;
}

.institution {
  font-style: italic;
  color: #e0e0e0;
}

.supervisor {
  margin-top: 10px;
  font-size: 1em;
  color: #FFD700;
}

.supervisor-title {
  font-style: italic;
  color: #e0e0e0;
}

.project-detail {
  margin-top: 10px;
  font-size: 1.1em;
  line-height: 1.6;
  color: #e0e0e0;
}

.separator {
  border: none;
  border-top: 1px solid #FFD700;
  margin: 10px 0;
}

.highlight {
  color: #FFD700;
  font-weight: bold;
}

#teaching-experience .experience-cards {
  display: flex !important; /* Force flexbox layout */
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center; /* Center the cards horizontally */
  align-items: flex-start; /* Align cards at the top */
}

#teaching-experience .experience-card {
  background: #1f1f1f;
  border: 2px solid #FFD700;
  border-radius: 10px;
  padding: 20px;
  flex: 0 1 calc(45% - 20px); /* Two cards per row with spacing */
  max-width: 400px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-sizing: border-box; /* Include padding and border in width calculation */
}

#teaching-experience .experience-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.5);
}

#teaching-experience .experience-card h3 {
  margin-top: 0;
  color: #FFD700;
  font-size: 1.5em;
}

#teaching-experience .experience-card .date {
  color: #FFD700;
  font-weight: bold;
  margin-bottom: 10px;
}

#teaching-experience .experience-card ul {
  list-style: square;
  padding-left: 20px;
}

#teaching-experience .experience-card ul li {
  margin-bottom: 8px;
  color: #e0e0e0;
}

/* Responsive design for smaller screens */
@media (max-width: 768px) {
  #teaching-experience .experience-cards {
    flex-direction: column !important; /* Stack cards vertically on smaller screens */
  }

  #teaching-experience .experience-card {
    width: 100% !important; /* Full width for smaller screens */
  }
}

.youtube-link {
  display: inline-flex;
  align-items: center;
  color: #FF0000; /* YouTube red color */
  font-weight: bold;
  text-decoration: none;
  transition: transform 0.3s ease, color 0.3s ease;
}

.youtube-link:hover {
  color: #e60000; /* Darker red on hover */
  transform: scale(1.1); /* Slight zoom effect */
}

.youtube-icon {
  width: 20px;
  height: 20px;
  margin-right: 8px;
  vertical-align: middle;
}

.recording-button {
  display: inline-block;
  background-color: #FF0000; /* YouTube red color */
  color: #fff;
  font-weight: bold;
  text-decoration: none;
  padding: 10px 15px;
  border-radius: 5px;
  font-size: 0.9em;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.recording-button:hover {
  background-color: #e60000; /* Darker red on hover */
  transform: scale(1.05); /* Slight zoom effect */
}

.awards-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 20px;
  background: #1f1f1f;
  border: 2px solid #FFD700;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.award-item {
  padding: 15px;
  background: linear-gradient(135deg, #2a2a2a, #1f1f1f);
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.award-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.5);
}

.award-item h3 {
  margin: 0;
  color: #FFD700;
  font-size: 1.5em;
}

.award-item .date {
  color: #FFD700;
  font-weight: bold;
  margin-bottom: 10px;
}

.award-item p {
  margin: 5px 0;
  color: #e0e0e0;
  line-height: 1.6;
}

.contact-info {
  text-align: center;
  font-size: 1.1em;
  color: #e0e0e0;
  margin-top: 20px;
}

.contact-info p {
  margin: 10px 0;
}

.contact-info a {
  color: #FFD700;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

.contact-info a:hover {
  color: #e0e0e0;
}

.social-links {
  margin-top: 20px;
}

.social-link {
  display: inline-block;
  margin: 0 10px;
  padding: 10px 20px;
  border: 2px solid #FFD700;
  border-radius: 5px;
  color: #FFD700;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.social-link:hover {
  background-color: #FFD700;
  color: #1f1f1f;
}

.social-link.linkedin {
  border-color: #0077b5;
  color: #0077b5;
}

.social-link.linkedin:hover {
  background-color: #0077b5;
  color: #fff;
}

social-link.github {
  border-color: #333;
  color: #333;
}

.social-link.github:hover {
  background-color: #333;
  color: #fff;
}

.social-logo {
  width: 20px;
  height: 20px;
  margin-right: 8px;
  vertical-align: middle;
}