/* Global Variables */
:root {
    --bg-primary: #121212;
    --bg-secondary: #1A1A1A;
    --bg-card: #222222;
    --text-primary: #FFFFFF;
    --text-secondary: #B3B3B3;
    --accent-color: #a9b6c9;
    --border-color: #333333;
    --hover-color: #2C2C2C;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --transition: all 0.3s ease;
  }
  
  /* Light Theme */
  .light {
    --bg-primary: #F5F5F5;
    --bg-secondary: #FFFFFF;
    --bg-card: #FFFFFF;
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --border-color: #E5E5E5;
    --hover-color: #F0F0F0;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  }

  .profile-main {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    gap: 1rem;
  }
  
  .profile-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
  }
  
  .profile-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }
  
  /* Base Styles */
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html {
    font-size: 16px;
    scroll-behavior: smooth;
  }
  
  body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition);
  }
  
  a {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition);
  }
  
  a:hover {
    opacity: 0.8;
  }
  
  h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.5rem;
  }
  
  h1 {
    font-size: 2.25rem;
  }
  
  h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
  
  p {
    margin-bottom: 1rem;
  }
  
  ul {
    list-style-position: inside;
    margin-bottom: 1rem;
  }
  
  li {
    margin-bottom: 0.5rem;
  }
  
  /* Container */
  .container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
  }
  
  /* Theme Toggle */
  .theme-toggle {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 10;
  }
  
  .theme-toggle button {
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
  }
  
  .theme-toggle button:hover {
    background-color: var(--hover-color);
  }
  
  .sun-icon {
    display: none;
  }
  
  .dark .moon-icon {
    display: none;
  }
  
  .dark .sun-icon {
    display: block;
  }
  
  /* Header Section */
  .header {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 2rem;
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
  }
  
  .profile {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }
  
  .avatar-container {
    flex-shrink: 0;
  }
  
  .avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--accent-color);
  }
  
  .avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .profile-info {
    flex-grow: 1;
  }
  
  .title {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
  }
  
  .location {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
  }
  
  .contact-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
  }
  
  /* Buttons */
  .btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
  }
  
  .btn-primary {
    background-color: var(--accent-color);
    color: white;
    border: none;
  }
  
  .btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
  }
  
  .btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
  }
  
  .btn-outline:hover {
    background-color: var(--hover-color);
    transform: translateY(-2px);
  }
  
  /* Bio Section */
  .bio-section {
    margin-bottom: 2rem;
  }
  
  .card {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    overflow: hidden;
    height: 100%;
  }
  
  .card:hover {
    transform: translateY(-5px);
  }
  
  .card-content {
    padding: 1.5rem;
  }
  
  /* Tabs Section */
  .tabs-section {
    margin-bottom: 2rem;
  }
  
  .tabs {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    width: 100%;
  }
  
  .tabs-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly; /* centers the tabs horizontally */
    border-bottom: 1px solid var(--border-color);
  }
  
  .tab-trigger {
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 500;
    font-size: 1.1  em;
    transition: var(--transition);
    position: relative;
  }
  
  .tab-trigger:hover {
    color: var(--text-primary);
  }
  
  .tab-trigger.active {
    color: var(--accent-color);
  }
  
  .tab-trigger.active::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-color);
  }
  
  .tab-content {
    display: none;
    padding: 2rem;
  }
  
  .tab-content.active {
    display: block;
  }
  
  /* Timeline */
  .timeline-item {
    position: relative;
    padding-left: 2rem;
    padding-bottom: 2rem;
  }
  
  .timeline-item:last-child {
    padding-bottom: 0;
  }
  
  .timeline-marker {
    position: absolute;
    left: 0;
    top: 0.25rem;
    width: 1rem;
    height: 1rem;
    background-color: var(--accent-color);
    border-radius: 50%;
    z-index: 1;
  }
  
  .timeline-item:not(:last-child) .timeline-marker::after {
    content: "";
    position: absolute;
    top: 1rem;
    left: 0.45rem;
    width: 2px;
    height: calc(100% + 1.5rem);
    background-color: var(--border-color);
    z-index: 0;
  }
  
  .timeline-period {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
  }
  
  .timeline-company {
    margin-bottom: 0.5rem;
  }
  
  .read-more {
    display: inline-block;
    color: var(--accent-color);
    cursor: pointer;
    margin-top: 0.5rem;
    font-size: 0.9rem;
  }
  
  .hidden-section {
    display: none;
    margin-top: 1rem;
  }
  
  /* Skills Grid */
  .skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
  }
  
  .skill-category {
    margin-bottom: 1rem;
  }
  
  .skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
  }
  
  .badge {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
    white-space: nowrap;
  }
  
  /* Awards Grid */
  .awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
  }
  
  .award-item {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
  }
  
  .award-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
  }
  
  .award-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
  }
  
  .award-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0;
  }
  
  /* Projects Grid */
  .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
  }
  
  .project-card {
    cursor: pointer;
    transition: var(--transition);
  }
  
  .project-card:hover {
    transform: translateY(-5px);
  }
  
  .project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
  }
  
  .tag {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    padding: 0.2rem 0.7rem;
    border-radius: 4px;
    font-size: 0.8rem;
  }
  
  /* Modal */
  .modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    overflow-y: auto;
    padding: 1rem;
  }
  
  .modal-content {
    background-color: var(--bg-secondary);
    max-width: 650px;
    margin: 2rem auto;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    animation: modalFade 0.3s;
  }
  
  @keyframes modalFade {
    from {
      opacity: 0;
      transform: translateY(-20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
  }
  
  .modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
  }
  
  .modal-close:hover {
    color: var(--text-primary);
  }
  
  .modal-body {
    padding: 1.5rem;
  }
  
  .modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
  }
  
  .modal-footer {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
  }
  
  .modal-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 99;
  }
  
  .modal.active, .modal-backdrop.active {
    display: block;
  }
  
  /* Media Queries */
  @media (max-width: 768px) {
    .header {
      flex-direction: column;
    }
    
    .profile {
      flex-direction: column;
      text-align: center;
    }
    
    .contact-buttons {
      justify-content: center;
    }
    
    .btn-text {
      display: none;
    }
    
    .tab-trigger {
      padding: 0.8rem 1rem;
      font-size: 0.9rem;
    }
    
    .skills-grid, .projects-grid {
      grid-template-columns: 1fr;
    }
  }
  
  @media (max-width: 480px) {
    html {
      font-size: 14px;
    }
    
    .header, .card-content, .tab-content {
      padding: 1.25rem
    }
    
    .avatar {
      width: 80px;
      height: 80px;
    }
    
    .tabs-list {
      overflow-x: auto;
      white-space: nowrap;
      padding-bottom: 5px;
      background-color: var(--bg-primary);
    }
    
    .tab-trigger {
      padding: 0.7rem 0.9rem;
      font-size: 0.85rem;
    }
  }