* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", sans-serif;
  background: #eaeaea;
  color: #333;
}

.container {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  background: #2c3e50;
  color: #fff;
  width: 350px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: sticky;
  top: 0;
}

.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin-bottom: 1rem;
}

.profile h2 {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact-info {
  list-style: none;
  margin: 1rem 0;
}

.contact-info li {
  margin: 0.5rem 0;
}

.socials a {
  color: #1abc9c;
  text-decoration: none;
  margin: 0 0.5rem;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  margin-top: 1rem;
  background: #1abc9c;
  color: white;
  text-decoration: none;
  border-radius: 5px;
}

.content {
  flex: 1;
  padding: 3rem;
  background: white;
}

.buttons .btn {
  margin-right: 1rem;
}

.primary {
  background: #1abc9c;
  color: white;
  border: 2px solid #1abc9c;
  padding: 0.5rem 1.2rem;
  font-weight: 500;
  transition: all 0.3s ease;
  border-radius: 5px;
  box-shadow: 0 2px 6px rgba(26, 188, 156, 0.3);
}

.primary:hover {
  background: white;
  color: #1abc9c;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(26, 188, 156, 0.35);
}

.secondary {
  background: transparent;
  color: #1abc9c;
  border: 2px solid #1abc9c;
  padding: 0.5rem 1.2rem;
  font-weight: 500;
  transition: all 0.3s ease;
  border-radius: 5px;
}

.secondary:hover {
  background: #1abc9c;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(26, 188, 156, 0.3);
}

.section h2 {
  margin-bottom: 1rem;
  border-bottom: 2px solid #1abc9c;
  display: inline-block;
  padding-bottom: 0.5rem;
  color: #2c3e50;
  font-weight: 600;
}

.buttons.vertical {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.buttons.vertical .btn {
  width: fit-content;
}

.right-nav {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  background: #ffffffee;
  border: 1px solid #ccc;
  padding: 0.75rem;
  border-radius: 10px;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.right-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.right-nav button {
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.right-nav button img {
  width: 42px;
  height: 42px;
  opacity: 0.6;
  transition: all 0.3s ease;
  filter: grayscale(100%) brightness(0.8);
}

.right-nav button:hover img {
  opacity: 0.9;
  filter: grayscale(30%) brightness(1);
}

.right-nav button.active img {
  opacity: 1;
  filter: none;
}

.socials {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin: 20px 0;
}

/* Social icons */
.socials img {
  width: 40px;
  height: 40px;
  transition: transform 0.3s ease, filter 0.3s ease;
  filter: grayscale(100%) brightness(0.9);
  cursor: pointer;
}

/* On hover, colorize and slightly enlarge */
.socials img:hover {
  filter: none;
  transform: scale(1.1);
}

/* Stiluri pentru secțiunea #about */
.section.intro {
  background-color: #f9f9f9;
  padding: 3rem 2rem;
  border-radius: 15px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
  max-width: 900px;
  margin: 0 auto;
  transition: all 0.3s ease;
}

.section.intro h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #2c3e50;
}

.section.intro span {
  color: #1abc9c;
  font-weight: bold;
}

.section.intro p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 1rem;
  color: #555;
}

.section.intro strong {
  color: #2c3e50;
}

/* Stilizarea secțiunii de proiecte */
#projects {
  margin-top: 3rem;
}

.project {
  background: #fff;
  padding: 2rem;
  margin-bottom: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.project h3 {
  font-size: 1.5rem;
  color: #333;
  margin-bottom: 1rem;
}

.project p {
  font-size: 1rem;
  line-height: 1.6;
  color: #666;
}

.github-link {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.2rem;
  background: #1abc9c;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: 0 2px 6px rgba(26, 188, 156, 0.3);
}

.github-link:hover {
  background: #16a085;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(26, 188, 156, 0.4);
}

#projects h2 {
  font-size: 2rem;
  color: #1abc9c;
  margin-bottom: 1.5rem;
  text-align: center;
  border-bottom: 2px solid #1abc9c;
  padding-bottom: 0.5rem;
}

.content {
  flex: 1;
  padding: 3rem;
  background: white;
  position: relative;
  overflow-y: hidden; /* Ascunde scrollbar-ul global */
}

.section {
  position: absolute;
  top: 3rem;
  left: 3rem;
  right: 3rem;
  bottom: 3rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  overflow-y: auto; /
}

.section.active {
  opacity: 1;
  visibility: visible;
}

.hidden {
  display: none; /* Opțional, dacă nu mai este folosit */
}

.experience-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
  }
  
  .timeline-item {
    position: relative;
    padding: 2rem;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    margin-bottom: 2rem;
  }
  
  .timeline-header {
    border-bottom: 2px solid #f0f2f5;
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
  }
  
  .timeline-marker {
    position: absolute;
    left: -42px;
    top: 15px;
    width: 24px;
    height: 24px;
    background: #1abc9c;
    border: 4px solid white;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(26,188,156,0.3);
  }
  
  .status-badge {
    background: #f1c40f;
    color: #2c3e50;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-left: 1rem;
    vertical-align: middle;
  }
  
  .status-badge.completed {
    background: #27ae60;
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-left: 0.3rem;
    vertical-align: middle;
  }
  
  .experience-skills {
    list-style: none;
    margin: 2rem 0;
  }
  
  .skill-item {
    display: flex;
    align-items: center;
    padding: 1.5rem;
    margin: 1rem 0;
    background: #f8fafc;
    border-radius: 10px;
    transition: transform 0.3s ease;
  }
  
  .skill-item:hover {
    transform: translateX(10px);
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  }
  
  .skill-icon {
    width: 40px;
    height: 40px;
    margin-right: 1.5rem;
  }
  
  .github-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 10px;
    margin: 2rem 0;
    position: relative;
    min-height: 100px;
  }
  
  .github-spinner {
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
  }
  
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }
  
  .placeholder-text {
    margin-left: 1rem;
    color: #7f8c8d;
    font-style: italic;
  }
  
  .experience-quote {
    border-left: 4px solid #1abc9c;
    padding: 1.5rem;
    margin: 2rem 0;
    background: #f8fafc;
    border-radius: 8px;
    font-style: italic;
    color: #34495e;
  }

  .education-timeline {
    max-width: 900px;
    margin: 0 auto;
  }
  
  .education-item {
    background: #fff;
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: transform 0.3s ease;
  }
  
  .education-item:hover {
    transform: translateY(-5px);
  }
  
  .education-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
  }
  
  .education-icon {
    font-size: 2.5rem;
    background: #1abc9c;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .achievement-badge {
    background: linear-gradient(135deg, #1abc9c, #16a085);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    display: inline-flex;
    align-items: center;
    margin-top: 0.8rem;
  }
  
  .skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
  }
  
  .skill-pill {
    position: relative;
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #2c3e50;
    border: 1px solid #e9ecef;
  }
  
  .skill-pill img {
    width: 30px;
    height: 30px;
  }
  
  .skill-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: #1abc9c;
    border-radius: 0 0 50px 50px;
  }
  
  .learning-journey {
    margin-top: 3rem;
    padding: 2rem;
    background: #f8fafc;
    border-radius: 15px;
    color: #2c3e50;
    border: 1px solid #e9ecef;
  }
  
  .course-carousel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
  }
  
  .course-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    color: #2c3e50;
    border: 1px solid #e9ecef;
  }
  
  .course-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #1abc9c, #3498db);
  }
  
  .course-logo {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    margin-bottom: 1rem;
  }
  
  .course-logo.udemy { background: #EC5252 }
  .course-logo.aws { background: #FF9900 }
  .course-logo.backend { background: #3498db }

  .simple-contact {
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem;
  }
  
  .contact-badge {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
    border: 1px solid #eee;
  }
  
  .location {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }
  
  .contact-icon {
    width: 40px;
    height: 40px;
    padding: 8px;
    background: #1abc9c;
    border-radius: 50%;
  }
  
  .contact-channels {
    display: grid;
    gap: 1.5rem;
  }
  
  .email-channel {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: #fff;
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    border: 1px solid #eee;
    transition: transform 0.2s ease;
  }
  
  .email-channel:hover {
    transform: translateY(-3px);
    border-color: #1abc9c;
  }
  
  .response-time {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: #1abc9c;
    padding: 0.3rem 0.7rem;
    background: #e8f8f5;
    border-radius: 20px;
  }
  
  .socials-contact {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
  }
  
  .social-link {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.8rem 1.2rem;
    background: #f8f9fa;
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    transition: all 0.2s ease;
  }
  
  .social-link:hover {
    background: #1abc9c;
    color: white;
  }
  
  .social-link img {
    width: 24px;
    height: 24px;
  }
  
  @media (max-width: 480px) {
    /* Layout ultra-compact pentru telefoane mici */
    .sidebar {
      padding: 0.8rem;
    }
    
    .profile {
      flex-direction: column;
      text-align: center;
      gap: 0.5rem;
    }
    
    .avatar {
      width: 70px;
      height: 70px;
    }
    
    .profile h2 {
      font-size: 1.1rem;
    }
    
    .profile p {
      font-size: 0.85rem;
    }
    
    .contact-info {
      font-size: 0.8rem;
    }
    
    .contact-info li {
      padding: 0.2rem 0.5rem;
      font-size: 0.75rem;
    }
    
    .socials img {
      width: 30px;
      height: 30px;
    }
    
    .sidebar .btn {
      padding: 0.6rem 1rem;
      font-size: 0.9rem;
    }
    
    .content {
      padding: 0.8rem;
    }
    
    .section {
      padding: 1rem;
    }
    
    .section h1 {
      font-size: 1.5rem;
      line-height: 1.2;
    }
    
    .section h2 {
      font-size: 1.3rem;
    }
    
    .section p {
      font-size: 0.95rem;
      line-height: 1.6;
    }
    
    .btn.primary,
    .btn.secondary {
      padding: 0.7rem 1.2rem;
      font-size: 0.9rem;
    }
    
    .project {
      padding: 1rem;
    }
    
    .project h3 {
      font-size: 1.2rem;
    }
    
    .project p {
      font-size: 0.9rem;
    }
    
    .github-link,
    .demo-link {
      padding: 0.6rem 1rem;
      font-size: 0.85rem;
    }
    
    .timeline-item,
    .education-item {
      padding: 1rem;
    }
    
    .skill-item {
      padding: 0.8rem;
      gap: 0.8rem;
    }
    
    .skill-icon {
      width: 30px;
      height: 30px;
    }
    
    .contact-badge,
    .email-channel {
      padding: 1rem;
    }
    
    .social-link {
      padding: 0.6rem 0.8rem;
      font-size: 0.85rem;
      min-width: calc(100% - 0.8rem);
    }
    
    .right-nav {
      padding: 0.4rem 0.8rem;
      bottom: 0.5rem;
      right: 0.5rem;
      left: auto;
      transform: none;
    }
    
    .right-nav ul {
      gap: 0.3rem;
    }
    
    .right-nav button img {
      width: 25px;
      height: 25px;
    }
    
    .lang-btn {
      width: 30px;
      height: 30px;
      font-size: 0.8rem;
    }
    
    .language-switcher {
      position: relative;
      transform: none;
      padding: 3px;
      margin-left: auto;
      background: rgba(255,255,255,0.95);
      border-radius: 15px;
    }
  }
  
  /* Landscape phones - optimizare pentru orientare peisaj */
  @media (max-width: 768px) and (orientation: landscape) {
    .sidebar {
      padding: 0.8rem 1rem;
    }
    
    .profile {
      display: flex;
      flex-direction: row;
      align-items: center;
      gap: 1rem;
      margin-bottom: 0.5rem;
    }
    
    .avatar {
      width: 60px;
      height: 60px;
    }
    
    .contact-info {
      font-size: 0.8rem;
      margin: 0.5rem 0;
    }
    
    .socials {
      margin: 0.5rem 0;
    }
    
    .socials img {
      width: 28px;
      height: 28px;
    }
    
    .content {
      padding: 1rem;
    }
    
    .section {
      padding: 1.2rem;
    }
    
    .right-nav {
      bottom: 0.5rem;
      right: 0.5rem;
      padding: 0.3rem 0.6rem;
    }
    
    .right-nav button img {
      width: 25px;
      height: 25px;
    }
  }

  .avatar-container {
    position: relative;
    display: inline-block;
    margin-bottom: 1rem;
  }
  
  .language-switcher {
    position: absolute;
    top: 0;
    right: 0;
    transform: translate(90%, -50%);
    display: flex;
    gap: 5px;
    background: #fff;
    padding: 5px;
    border-radius: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    z-index: 1;
  }
  
  .lang-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: #f8f9fa;
    color: #2c3e50;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .lang-btn.active {
    background: #1abc9c;
    color: white;
    box-shadow: 0 2px 6px rgba(26,188,156,0.3);
  }
  
  /* Pentru mobile */
  @media (max-width: 768px) {
    /* LAYOUT FUNDAMENTAL */
    .container {
      flex-direction: column;
      min-height: 100vh;
    }
    
    /* SIDEBAR MOBIL */
    .sidebar {
      width: 100%;
      padding: 1rem;
      background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
      position: relative;
      min-height: auto;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }
    
    .profile {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin-bottom: 1rem;
    }
    
    .avatar {
      width: 80px;
      height: 80px;
      border: 3px solid #1abc9c;
      box-shadow: 0 4px 12px rgba(26,188,156,0.3);
    }
    
    .profile h2 {
      color: #ffffff;
      font-size: 1.3rem;
      margin: 0;
      text-align: left;
    }
    
    .profile p {
      color: #ecf0f1;
      margin: 0;
      font-size: 0.9rem;
    }
    
    /* Contact info compactat */
    .contact-info {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin: 1rem 0;
      font-size: 0.85rem;
    }
    
    .contact-info li {
      background: rgba(255,255,255,0.1);
      padding: 0.3rem 0.6rem;
      border-radius: 15px;
      color: #ecf0f1;
      margin: 0;
    }
    
    /* Socials */
    .socials {
      display: flex;
      justify-content: center;
      gap: 1rem;
      margin: 1rem 0;
    }
    
    .socials img {
      width: 35px;
      height: 35px;
      filter: brightness(1.1);
      transition: transform 0.2s ease;
    }
    
    .socials img:hover {
      transform: scale(1.15);
    }
    
    /* Button în sidebar */
    .sidebar .btn {
      background: #1abc9c;
      color: #ffffff;
      padding: 0.7rem 1.2rem;
      border-radius: 25px;
      font-weight: 600;
      text-align: center;
      box-shadow: 0 3px 10px rgba(26,188,156,0.4);
      border: none;
      transition: all 0.3s ease;
    }
    
    .sidebar .btn:hover {
      background: #16a085;
      transform: translateY(-2px);
      box-shadow: 0 5px 15px rgba(26,188,156,0.5);
    }
    
    /* Language switcher - poziționare corectă pe mobil */
    .language-switcher {
      position: relative;
      transform: none;
      margin-left: auto;
      padding: 4px;
      background: rgba(255,255,255,0.9);
      border-radius: 20px;
      backdrop-filter: blur(10px);
    }
    
    .avatar-container {
      position: relative;
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    
    .lang-btn {
      width: 32px;
      height: 32px;
      font-size: 0.8rem;
      background: rgba(255,255,255,0.8);
      border: 1px solid rgba(26,188,156,0.3);
    }
    
    .lang-btn.active {
      background: #1abc9c;
      color: white;
      border-color: #1abc9c;
    }
  }
  
  /* CONTENT MOBIL */
  @media (max-width: 768px) {
    .content {
      flex: 1;
      padding: 1rem;
      background: #f8f9fa;
      min-height: calc(100vh - 200px);
    }
    
    /* Secțiuni */
    .section {
      position: relative;
      background: #ffffff;
      border-radius: 15px;
      padding: 1.5rem;
      margin-bottom: 1rem;
      box-shadow: 0 4px 15px rgba(0,0,0,0.08);
      border: 1px solid #e9ecef;
      color: #2c3e50;
    }
    
    .section.active {
      display: block;
      opacity: 1;
      visibility: visible;
    }
    
    /* Typography */
    .section h1 {
      font-size: 1.8rem;
      color: #2c3e50;
      margin-bottom: 1rem;
      line-height: 1.3;
      font-weight: 700;
    }
    
    .section h1 span {
      color: #1abc9c;
      font-weight: 800;
    }
    
    .section h2 {
      font-size: 1.5rem;
      color: #2c3e50 !important;
      margin-bottom: 1rem;
      border-bottom: 3px solid #1abc9c;
      padding-bottom: 0.5rem;
      font-weight: 700;
    }
    
    .section p {
      font-size: 1rem;
      line-height: 1.7;
      color: #495057 !important;
      margin-bottom: 1rem;
      font-weight: 400;
    }
    
    .section strong {
      color: #2c3e50 !important;
      font-weight: 600;
    }
    
    /* Buttons */
    .buttons.vertical {
      display: flex;
      flex-direction: column;
      gap: 1rem;
      margin-top: 1.5rem;
    }
    
    .btn.primary {
      background: #1abc9c;
      color: #ffffff !important;
      border: 2px solid #1abc9c;
      padding: 0.8rem 1.5rem;
      border-radius: 25px;
      font-weight: 600;
      text-align: center;
      box-shadow: 0 4px 12px rgba(26,188,156,0.3);
      transition: all 0.3s ease;
      text-decoration: none;
      display: inline-block;
    }
    
    .btn.primary:hover {
      background: #16a085;
      border-color: #16a085;
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(26,188,156,0.4);
    }
    
    .btn.secondary {
      background: #ffffff;
      color: #1abc9c !important;
      border: 2px solid #1abc9c;
      padding: 0.8rem 1.5rem;
      border-radius: 25px;
      font-weight: 600;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      transition: all 0.3s ease;
      cursor: pointer;
    }
    
    .btn.secondary:hover {
      background: #1abc9c;
      color: #ffffff !important;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(26,188,156,0.3);
    }
  }

  .project-preview h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.1rem;
  }

  .project-links {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
    flex-wrap: wrap;
  }

  .demo-link {
    display: inline-flex;
    align-items: center;
    padding: 0.6rem 1.2rem;
    background: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(52, 152, 219, 0.3);
  }

  .demo-link:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.4);
  }

  .github-link {
    display: inline-flex;
    align-items: center;
    padding: 0.6rem 1.2rem;
    background: #1abc9c;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(26, 188, 156, 0.3);
  }

  .github-link:hover {
    background: #16a085;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 188, 156, 0.4);
  }

  /* ===== RESPONSIVE DESIGN - MOBILE ===== */
  
  /* Tablet și ecrane mici */
  @media (max-width: 1024px) {
    .container {
      flex-direction: column;
    }
    
    .sidebar {
      width: 100%;
      position: relative;
      padding: 1.5rem;
    }
    
    .content {
      padding: 2rem;
    }
    
    .right-nav {
      top: 1rem;
      right: 1rem;
      padding: 0.5rem;
    }
    
    .right-nav button img {
      width: 35px;
      height: 35px;
    }
  }
  
  /* Very small phones - continuare */
  @media (max-width: 480px) {
    .sidebar {
      padding: 0.8rem;
    }
    
    .profile {
      flex-direction: column;
      text-align: center;
      gap: 0.5rem;
    }
    
    .avatar {
      width: 70px;
      height: 70px;
    }
    
    .profile h2 {
      font-size: 1.1rem;
    }
    
    .profile p {
      font-size: 0.85rem;
    }
    
    .contact-info {
      font-size: 0.8rem;
    }
    
    .contact-info li {
      padding: 0.2rem 0.5rem;
      font-size: 0.75rem;
    }
    
    .socials img {
      width: 30px;
      height: 30px;
    }
    
    .sidebar .btn {
      padding: 0.6rem 1rem;
      font-size: 0.9rem;
    }
    
    .content {
      padding: 0.8rem;
    }
    
    .section {
      padding: 1rem;
    }
    
    .section h1 {
      font-size: 1.5rem;
      line-height: 1.2;
    }
    
    .section h2 {
      font-size: 1.3rem;
    }
    
    .section p {
      font-size: 0.95rem;
      line-height: 1.6;
    }
    
    .btn.primary,
    .btn.secondary {
      padding: 0.7rem 1.2rem;
      font-size: 0.9rem;
    }
    
    .project {
      padding: 1rem;
    }
    
    .project h3 {
      font-size: 1.2rem;
    }
    
    .project p {
      font-size: 0.9rem;
    }
    
    .github-link,
    .demo-link {
      padding: 0.6rem 1rem;
      font-size: 0.85rem;
    }
    
    .timeline-item,
    .education-item {
      padding: 1rem;
    }
    
    .skill-item {
      padding: 0.8rem;
      gap: 0.8rem;
    }
    
    .skill-icon {
      width: 30px;
      height: 30px;
    }
    
    .contact-badge,
    .email-channel {
      padding: 1rem;
    }
    
    .social-link {
      padding: 0.6rem 0.8rem;
      font-size: 0.85rem;
      min-width: calc(100% - 0.8rem);
    }
    
    .right-nav {
      padding: 0.4rem 0.8rem;
      bottom: 0.5rem;
      right: 0.5rem;
      left: auto;
      transform: none;
    }
    
    .right-nav ul {
      gap: 0.3rem;
    }
    
    .right-nav button img {
      width: 25px;
      height: 25px;
    }
    
    .lang-btn {
      width: 30px;
      height: 30px;
      font-size: 0.8rem;
    }
    
    .language-switcher {
      transform: translate(60%, -40%);
      padding: 3px;
    }
  }
  
  /* Landscape phones - optimizare pentru orientare peisaj */
  @media (max-width: 768px) and (orientation: landscape) {
    .sidebar {
      padding: 0.8rem 1rem;
    }
    
    .profile {
      display: flex;
      flex-direction: row;
      align-items: center;
      gap: 1rem;
      margin-bottom: 0.5rem;
    }
    
    .avatar {
      width: 60px;
      height: 60px;
    }
    
    .contact-info {
      font-size: 0.8rem;
      margin: 0.5rem 0;
    }
    
    .socials {
      margin: 0.5rem 0;
    }
    
    .socials img {
      width: 28px;
      height: 28px;
    }
    
    .content {
      padding: 1rem;
    }
    
    .section {
      padding: 1.2rem;
    }
    
    .right-nav {
      bottom: 0.5rem;
      right: 0.5rem;
      padding: 0.3rem 0.6rem;
    }
    
    .right-nav button img {
      width: 25px;
      height: 25px;
    }
  }

  /* PROIECTE MOBIL */
  @media (max-width: 768px) {
    .project {
      background: #ffffff;
      padding: 1.5rem;
      margin: 1rem 0;
      border-radius: 12px;
      box-shadow: 0 3px 12px rgba(0,0,0,0.08);
      border: 1px solid #e9ecef;
      color: #2c3e50;
    }
    
    .project h3 {
      font-size: 1.3rem;
      color: #2c3e50 !important;
      margin-bottom: 1rem;
      font-weight: 600;
    }
    
    .project p {
      font-size: 0.95rem;
      line-height: 1.6;
      color: #495057 !important;
      margin-bottom: 1rem;
    }
    
    .github-link {
      background: #1abc9c;
      color: #ffffff !important;
      padding: 0.7rem 1.2rem;
      border-radius: 25px;
      text-decoration: none;
      font-weight: 600;
      display: inline-block;
      box-shadow: 0 3px 10px rgba(26,188,156,0.3);
      transition: all 0.3s ease;
      margin-top: 0.5rem;
    }
    
    .github-link:hover {
      background: #16a085;
      transform: translateY(-2px);
      box-shadow: 0 5px 15px rgba(26,188,156,0.4);
    }
    
    .project-links {
      display: flex;
      flex-direction: column;
      gap: 0.8rem;
      margin-top: 1rem;
    }
    
    .demo-link {
      background: #3498db;
      color: #ffffff !important;
      padding: 0.7rem 1.2rem;
      border-radius: 25px;
      text-decoration: none;
      font-weight: 600;
      text-align: center;
      box-shadow: 0 3px 10px rgba(52,152,219,0.3);
      transition: all 0.3s ease;
    }
    
    .demo-link:hover {
      background: #2980b9;
      transform: translateY(-2px);
      box-shadow: 0 5px 15px rgba(52,152,219,0.4);
    }
  }
  
  /* EXPERIENCE & EDUCATION MOBIL */
  @media (max-width: 768px) {
    .experience-timeline,
    .education-timeline {
      max-width: 100%;
      margin: 0;
    }
    
    .timeline-item,
    .education-item {
      background: #ffffff;
      padding: 1.5rem;
      margin: 1rem 0;
      border-radius: 12px;
      box-shadow: 0 3px 12px rgba(0,0,0,0.08);
      border: 1px solid #e9ecef;
      color: #2c3e50;
      position: relative;
    }
    
    .timeline-marker {
      display: none; /* Ascundem pe mobil pentru simplitate */
    }
    
    .timeline-item h3,
    .education-item h3 {
      color: #2c3e50 !important;
      font-weight: 600;
      margin-bottom: 0.8rem;
    }
    
    .timeline-item p,
    .education-item p {
      color: #495057 !important;
      line-height: 1.6;
    }
    
    .status-badge {
      background: #f39c12;
      color: #ffffff;
      padding: 0.3rem 0.8rem;
      border-radius: 15px;
      font-size: 0.8rem;
      font-weight: 600;
    }
    
    .status-badge.completed {
      background: #27ae60;
    }
    
    .skill-item {
      background: #f8f9fa;
      padding: 1rem;
      margin: 0.8rem 0;
      border-radius: 10px;
      border: 1px solid #e9ecef;
      color: #2c3e50;
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    
    .skill-icon {
      width: 35px;
      height: 35px;
      flex-shrink: 0;
    }
    
    .skill-item h4 {
      color: #2c3e50 !important;
      margin: 0;
      font-weight: 600;
    }
    
    .skill-item p {
      color: #495057 !important;
      margin: 0;
      font-size: 0.9rem;
    }
    
    .education-icon {
      width: 50px;
      height: 50px;
      background: #1abc9c;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      color: white;
    }
    
    .skills-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1rem;
      margin-top: 1rem;
    }
    
    .skill-pill {
      background: #ffffff !important;
      border: 1px solid #e9ecef;
      padding: 0.8rem;
      border-radius: 10px;
      display: flex;
      align-items: center;
      gap: 0.8rem;
      color: #2c3e50 !important;
    }
    
    .skill-pill img {
      width: 25px;
      height: 25px;
    }
    
    .skill-pill span {
      color: #2c3e50 !important;
      font-weight: 500;
    }
    
    .course-carousel {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1rem;
      margin-top: 1rem;
    }
    
    .course-card {
      background: #ffffff !important;
      border: 1px solid #e9ecef;
      padding: 1rem;
      border-radius: 10px;
      color: #2c3e50 !important;
    }
    
    .course-card h4 {
      color: #2c3e50 !important;
      font-weight: 600;
      margin-bottom: 0.5rem;
    }
    
    .course-card p {
      color: #495057 !important;
      font-size: 0.9rem;
    }
    
    .learning-journey {
      background: #f8f9fa !important;
      border: 1px solid #e9ecef;
      padding: 1.5rem;
      border-radius: 12px;
      margin-top: 2rem;
    }
    
    .learning-journey h3 {
      color: #2c3e50 !important;
      font-weight: 600;
      margin-bottom: 1rem;
    }
    
    .achievement-badge {
      background: #1abc9c !important;
      color: #ffffff !important;
      padding: 0.4rem 1rem;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 600;
      display: inline-block;
      margin-top: 0.5rem;
    }
  }
  
  /* CONTACT MOBIL */
  @media (max-width: 768px) {
    .simple-contact {
      max-width: 100%;
      margin: 0;
      padding: 1rem;
    }
    
    .contact-badge {
      background: #ffffff;
      border: 1px solid #e9ecef;
      padding: 1.5rem;
      border-radius: 12px;
      margin: 1rem 0;
      color: #2c3e50;
    }
    
    .location {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    
    .contact-icon {
      width: 35px;
      height: 35px;
      background: #1abc9c;
      border-radius: 50%;
      padding: 8px;
    }
    
    .contact-badge h3 {
      color: #2c3e50 !important;
      font-weight: 600;
      margin: 0;
    }
    
    .contact-badge p {
      color: #495057 !important;
      margin: 0;
      font-size: 0.9rem;
    }
    
    .contact-channels {
      display: grid;
      gap: 1rem;
    }
    
    .email-channel {
      background: #ffffff;
      border: 1px solid #e9ecef;
      padding: 1.2rem;
      border-radius: 12px;
      display: flex;
      align-items: center;
      gap: 1rem;
      text-decoration: none;
      color: #2c3e50;
      box-shadow: 0 2px 8px rgba(0,0,0,0.05);
      transition: all 0.3s ease;
    }
    
    .email-channel:hover {
      transform: translateY(-2px);
      border-color: #1abc9c;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }
    
    .email-channel h3 {
      color: #2c3e50 !important;
      font-weight: 600;
      margin: 0;
    }
    
    .email-channel p {
      color: #495057 !important;
      margin: 0;
      font-size: 0.9rem;
    }
    
    .response-time {
      background: #e8f8f5;
      color: #1abc9c;
      padding: 0.3rem 0.8rem;
      border-radius: 15px;
      font-size: 0.8rem;
      font-weight: 600;
      margin-top: 0.5rem;
      display: inline-block;
    }
    
    .socials-contact {
      display: flex;
      flex-wrap: wrap;
      gap: 0.8rem;
      margin-top: 1.5rem;
    }
    
    .social-link {
      background: #f8f9fa;
      border: 1px solid #e9ecef;
      padding: 0.8rem 1rem;
      border-radius: 10px;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      text-decoration: none;
      color: #2c3e50;
      transition: all 0.3s ease;
      flex: 1;
      min-width: calc(50% - 0.4rem);
      justify-content: center;
    }
    
    .social-link:hover {
      background: #1abc9c;
      color: #ffffff;
      border-color: #1abc9c;
    }
    
    .social-link img {
      width: 20px;
      height: 20px;
    }
  }
  
  /* RIGHT NAV MOBIL */
  @media (max-width: 768px) {
    .right-nav {
      position: fixed;
      bottom: 1rem;
      right: 1rem;
      background: #ffffff;
      border: 1px solid #e9ecef;
      padding: 0.5rem;
      border-radius: 50px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.1);
      z-index: 1000;
    }
    
    .right-nav ul {
      display: flex;
      flex-direction: row;
      gap: 0.5rem;
      margin: 0;
      padding: 0;
    }
    
    .right-nav button {
      background: none;
      border: none;
      padding: 0.5rem;
      border-radius: 50%;
      cursor: pointer;
      transition: all 0.3s ease;
    }
    
    .right-nav button:hover {
      background: #f8f9fa;
    }
    
    .right-nav button.active {
      background: #1abc9c;
    }
    
    .right-nav button img {
      width: 30px;
      height: 30px;
      opacity: 0.7;
      transition: opacity 0.3s ease;
    }
    
    .right-nav button:hover img,
    .right-nav button.active img {
      opacity: 1;
    }
    
    .right-nav button.active img {
      filter: brightness(0) invert(1);
    }
  }

  /* Dark mode support for mobile */
  @media (prefers-color-scheme: dark) and (max-width: 768px) {
    body {
      background: #121212;
      color: #e0e0e0;
    }
    
    .section.intro {
      background: #1e1e1e;
      color: #ffffff;
      border: 1px solid #333333;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    }
    
    .section.intro h1 {
      color: #ffffff !important;
    }
    
    .section.intro p {
      color: #e0e0e0 !important;
    }
    
    .section.intro strong {
      color: #ffffff !important;
    }
    
    .project {
      background: #1e1e1e;
      color: #ffffff;
      border: 1px solid #333333;
    }
    
    .project h3 {
      color: #ffffff !important;
    }
    
    .project p {
      color: #e0e0e0 !important;
    }
    
    .timeline-item, .education-item {
      background: #1e1e1e;
      color: #ffffff;
      border: 1px solid #333333;
    }
    
    .timeline-item h3, .education-item h3 {
      color: #ffffff !important;
    }
    
    .timeline-item p, .education-item p {
      color: #e0e0e0 !important;
    }
    
    .skill-item {
      background: #2a2a2a;
      border: 1px solid #333333;
      color: #ffffff;
    }
    
    .skill-item h4 {
      color: #ffffff !important;
    }
    
    .skill-item p {
      color: #e0e0e0 !important;
    }
    
    .contact-badge, .email-channel {
      background: #1e1e1e;
      border: 1px solid #333333;
      color: #ffffff;
    }
    
    .contact-badge h3, .email-channel h3 {
      color: #ffffff !important;
    }
    
    .contact-badge p, .email-channel p {
      color: #e0e0e0 !important;
    }
    
    .section h2 {
      color: #ffffff !important;
      border-bottom: 3px solid #1abc9c;
    }
    
    /* Dark mode education fixes */
    .education-details h3 {
      color: #ffffff !important;
    }
    
    .education-details p {
      color: #e0e0e0 !important;
    }
    
    .skill-pill {
      background: #2a2a2a !important;
      border: 1px solid #333333;
      color: #ffffff !important;
    }
    
    .skill-pill span {
      color: #ffffff !important;
    }
    
    .course-card {
      background: #2a2a2a !important;
      border: 1px solid #333333;
      color: #ffffff !important;
    }
    
    .course-card h4 {
      color: #ffffff !important;
    }
    
    .course-card p {
      color: #e0e0e0 !important;
    }
    
    .learning-journey {
      background: #1e1e1e !important;
      border: 1px solid #333333;
    }
    
    .learning-journey h3 {
      color: #ffffff !important;
    }
    
    .specialization-chip {
      background: #1565c0 !important;
      color: #ffffff !important;
      border: 1px solid #1976d2;
    }
    
    .specialization-chip span {
      color: #ffffff !important;
    }
    
    /* Enhanced buttons for dark mode */
    .btn.secondary {
      background: #1e1e1e;
      color: #1abc9c;
      border: 2px solid #1abc9c;
    }
  }

  /* Optimizations for slow connections */
  .slow-connection * {
    animation: none !important;
    transition: none !important;
  }
  
  .slow-connection .skill-item:hover {
    transform: none;
  }
  
  .slow-connection .education-item:hover {
    transform: none;
  }
  
  /* Focus styles for better accessibility */
  button:focus, a:focus, .btn:focus {
    outline: 2px solid #1abc9c;
    outline-offset: 2px;
  }
  
  /* High contrast mode support */
  @media (prefers-contrast: high) {
    .section.intro {
      border: 2px solid #000;
    }
    
    .btn, .github-link, .demo-link {
      border: 2px solid currentColor;
    }
  }
  
  /* Reduced motion for users who prefer it */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }