/* Desktop styles */
@media (min-width: 769px) {
  .timeline-content {
    padding: 1rem 0 2rem;
    /* margin-bottom: 2rem; */
    position: relative;
    cursor: default;
  }

  .timeline-content .skills {
    opacity: 1;
    max-height: none;
    overflow: visible;
    transform: translateY(0);
    margin-top: 1rem;
    display: block;
  }

  .timeline-content .expand-instruction {
    display: none;
  }

  .timeline-close-btn {
    display: none;
  }
}

/* Mobile styles */
@media (max-width: 768px) {
  
}
@media (max-width: 768px) {
  section .container {
    margin-top: 4rem;
  }

  body {
    font-size: 1rem;
  }

  .hamburger-menu {
    display: flex;
  }

  .header-content {
    justify-content: space-between;
    align-items: center;
    flex-direction: row;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-color);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: 80px;
    gap: 2rem;
    transition: right 0.3s ease;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    border-left: 2px solid var(--primary-text);
  }

  .nav.active {
    right: 0;
  }

  .nav-link {
    font-size: 1.2rem;
    padding: 1rem 2rem;
    width: 80%;
    text-align: center;
    border: 2px solid var(--primary-text);
    border-radius: 8px;
    background: var(--bg-color);
    transition: all 0.3s ease;
    box-shadow: 0.2rem 0.2rem var(--primary-text);
  }

  .nav-link:hover {
    background: var(--accent-color);
    color: var(--accent-text);
    transform: translateY(-2px);
    box-shadow: 0.3rem 0.3rem var(--accent-color);
  }

  .theme-toggle {
    background: var(--accent-color);
    color: var(--accent-text);
    border: 2px solid var(--accent-color);
    font-size: 1.5rem;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .theme-toggle:hover {
    background: var(--bg-color);
    color: var(--accent-color);
  }

  .primary-button,
  .secondary-button {
    width: 100%;
    max-width: 100%;
  }

  /* Hero Section */
  .hero-content {
    display: flex;
    flex-direction: column-reverse;
    gap: 2rem;
    max-width: 100%;
  }

  .hero-image img {
    width: 100%;
    max-width: 200px;
  }

  .hero-cta {
    flex-direction: column;
    gap: 1.5rem;
  }

  .hero-title {
    font-size: 2rem;
    text-align: center;
  }

  .main-title {
    font-size: 1.2rem;
    text-align: center;
  }

  .stat-number {
    font-size: 2rem;
  }

  /* Experience Section */
  .container,
  .timeline-content {
    max-width: 100%;
    width: 100%;
  }

  .timeline-content {
    outline: var(--primary-text) solid 2px;
    padding: 1rem 16px 2rem;
    margin-bottom: 2rem;
    border-radius: 8px;
    box-shadow: var(--primary-text) 8px 8px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    cursor: pointer;
  }

  .timeline-content .content-wrapper {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .timeline-content .skills {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(-10px);
    display: block;
  }

  .timeline-content.expanded .skills {
    opacity: 1;
    max-height: 1000px;
    transform: translateY(0);
    margin-top: 1rem;
  }

  .timeline-content .expand-instruction {
    opacity: 1;
    transition: opacity 0.3s ease;
    margin-top: 0.5rem;
    color: var(--primary-text);
    text-align: center;
    font-style: italic;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.05);
    display: block;
  }

  .timeline-content .expand-instruction:hover {
    background: var(--accent-before);
  }

  .timeline-content.expanded .expand-instruction {
    display: none;
    pointer-events: none;
  }

  .timeline-content.expanded {
    cursor: default;
  }

  /* Close button styles for mobile */
  .timeline-close-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 28px;
    height: 28px;
    border: 2px solid var(--primary-text);
    background: var(--bg-color);
    color: var(--primary-text);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: bold;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8) rotate(90deg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10;
    box-shadow: 0.2rem 0.2rem var(--primary-text);
  }

  .timeline-close-btn:hover {
    background: var(--accent-color);
    color: var(--accent-text);
    border-color: var(--accent-color);
    box-shadow: 0.3rem 0.3rem var(--accent-color);
    transform: scale(1) rotate(0deg);
  }

  .timeline-close-btn:active {
    transform: scale(0.95) rotate(0deg);
    box-shadow: 0.1rem 0.1rem var(--accent-color);
  }

  /* Show close button when expanded on mobile */
  .timeline-content.expanded .timeline-close-btn {
    opacity: 1;
    visibility: visible;
    transform: scale(1) rotate(0deg);
    transition-delay: 0.2s;
  }

  /* Certificates Section */
  .recognition-badges {
    gap: 1rem;
  }
}

/* Extra small mobile devices */
@media (max-width: 375px) {
  body {
    font-size: 0.9rem;
  }

  .about {
    margin-top: 6rem;
    margin-bottom: 3rem;
  }

  .badge-item img {
    width: 100%;
    height: auto;
  }

  .stats {
    flex-direction: column;
    align-items: center;
  }

  .main-title {
    font-size: 1rem;
  }

  .stat-number,
  .timeline-content h3 {
    font-size: 1.3rem;
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .timeline-close-btn {
    top: 0.5rem;
    right: 0.5rem;
    width: 24px;
    height: 24px;
    font-size: 0.8rem;
  }
}