/* Simple Black and White Design */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background-color: #ffffff;
  color: #000000;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

/* Typography */
h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #000000;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: #000000;
  border-bottom: 2px solid #000000;
  padding-bottom: 0.5rem;
}

h3 {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 0.8rem;
  color: #000000;
}

p {
  margin-bottom: 1rem;
  color: #000000;
}

/* Navigation */
header {
  background: #000000;
  margin: -20px -20px 40px -20px;
  padding: 20px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
  justify-content: center;
}

nav ul li a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  padding: 8px 16px;
  border: 1px solid #ffffff;
  transition: all 0.2s ease;
}

nav ul li a:hover {
  background: #ffffff;
  color: #000000;
}

/* Main Content */
main {
  margin-bottom: 40px;
}

/* Hero Section */
.hero {
  display: grid;
  grid-template-columns: 1fr 250px;
  gap: 2rem;
  align-items: start;
  margin-bottom: 3rem;
}

.profile-pic {
  width: 100%;
  max-width: 250px;
  height: 250px;
  object-fit: cover;
  border: 2px solid #000000;
}

/* Buttons */
.btn {
  display: inline-block;
  background: #000000;
  color: #ffffff;
  padding: 12px 24px;
  text-decoration: none;
  border: 2px solid #000000;
  font-weight: 500;
  transition: all 0.2s ease;
}

.btn:hover {
  background: #ffffff;
  color: #000000;
}

/* Sections */
section {
  margin-bottom: 3rem;
}

#certifications {
  background: #f8f8f8;
  padding: 2rem;
  border: 1px solid #000000;
}

.contact {
  background: #000000;
  color: #ffffff;
  padding: 2rem;
  text-align: center;
}

.contact h2 {
  color: #ffffff;
  border-bottom: 2px solid #ffffff;
}

.contact a {
  color: #ffffff;
  text-decoration: underline;
}

/* Articles */
article {
  border: 1px solid #000000;
  padding: 1rem;
  margin-bottom: 1rem;
  background: #ffffff;
}

article h3 {
  margin-bottom: 0.5rem;
  color: #000000;
  font-size: 1.2rem;
}

article p {
  margin-bottom: 0.5rem;
  color: #000000;
  font-size: 0.9rem;
}

article a {
  color: #000000;
  text-decoration: underline;
  font-weight: 500;
}

article a:hover {
  text-decoration: none;
}

/* Filter Buttons */
#filter-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

#filter-buttons button {
  background: #ffffff;
  color: #000000;
  border: 2px solid #000000;
  padding: 8px 16px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s ease;
}

#filter-buttons button:hover,
#filter-buttons button.active {
  background: #000000;
  color: #ffffff;
}

/* Highlights */
.Highlights ul {
  list-style: none;
  padding: 0;
}

.Highlights li {
  border: 1px solid #000000;
  padding: 1rem;
  margin-bottom: 1rem;
  background: #ffffff;
}

.Highlights li:hover {
  background: #f8f8f8;
}

/* Footer */
footer {
  background: #000000;
  color: #ffffff;
  text-align: center;
  padding: 2rem;
  margin: 0 -20px -20px -20px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .profile-pic {
    max-width: 200px;
    height: 200px;
    margin: 0 auto;
  }
  
  nav ul {
    flex-direction: column;
    gap: 1rem;
  }
  
  body {
    padding: 10px;
  }
  
  header {
    margin: -10px -10px 20px -10px;
    padding: 20px 10px;
  }
  
  footer {
    margin: 0 -10px -10px -10px;
  }
}

/* Simple transitions */
a, button {
  transition: all 0.2s ease;
}

/* Social Links */
.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-link {
  display: inline-block;
  padding: 0.5rem;
  border: 2px solid #000000;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.social-link:hover {
  background: #000000;
  transform: translateY(-2px);
}

.social-icon {
  width: 24px;
  height: 24px;
  filter: invert(0);
  transition: filter 0.2s ease;
}

.social-link:hover .social-icon {
  filter: invert(1);
}

/* Remove complex styling */
.tech-accent {
  font-weight: 600;
  background: none;
  color: #000000;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
}