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

    :root {
      --primary-color: #2c3e50;
      --secondary-color: #3498db;
      --accent-color: #e74c3c;
      --text-color: #333;
      --bg-color: #fff;
      --card-bg: #f8f9fa;
      --border-color: #e9ecef;
      --shadow: 0 2px 10px rgba(0,0,0,0.1);
      --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
      --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
      --gradient-tertiary: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    }

    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--text-color);
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      min-height: 100vh;
      transition: all 0.3s ease;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Header */
    .hero {
      background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
      color: white;
      padding: 4rem 0;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: linear-gradient(30deg, transparent, rgba(255,255,255,0.1), transparent);
      transform: rotate(30deg);
      animation: shine 8s ease-in-out infinite;
    }

    @keyframes shine {
      0%, 100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
      50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero-image i {
      font-size: 4rem;
      opacity: 0.9;
      animation: float 3s ease-in-out infinite;
    }

    @keyframes float {
      0%, 100% { transform: translateY(0px); }
      50% { transform: translateY(-10px); }
    }

    .hero h1 {
      font-size: 2rem;    
      text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
      animation: fadeInUp 1s ease-out;
    }

    .hero p {
      font-size: 1.2rem;
      opacity: 0.9;
      max-width: 600px;
      margin: 0 auto;
      animation: fadeInUp 1s ease-out 0.3s backwards;
    }

    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* Navigation */
    nav {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      padding: 1rem 0;
      box-shadow: 0 4px 20px rgba(0,0,0,0.1);
      position: sticky;
      top: 0;
      z-index: 100;
    }

    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
    }

    .nav-links {
      display: flex;
      list-style: none;
      gap: 2rem;
      flex-wrap: wrap;
    }

    .nav-links a {
      color: var(--text-color);
      text-decoration: none;
      font-weight: 500;
      padding: 0.5rem 1rem;
      border-radius: 25px;
      transition: all 0.3s ease;
      position: relative;
    }

    .nav-links a:hover, .nav-links a.active {
      background: var(--secondary-color);
      color: white;
      transform: translateY(-2px);
    }

    .nav-controls {
      display: flex;
      gap: 1rem;
    }

    .btn {
      background: var(--secondary-color);
      color: white;
      border: none;
      padding: 0.5rem 1rem;
      border-radius: 25px;
      cursor: pointer;
      transition: all 0.3s ease;
      font-size: 0.9rem;
    }

    .btn:hover {
      background: var(--primary-color);
      transform: translateY(-2px);
    }

    /* Main Content */
    main {
      background: var(--bg-color);
      min-height: 100vh;
      padding: 4rem 0;
    }

    .section {
      margin-bottom: 4rem;
      animation: fadeInUp 0.8s ease-out;
    }

    .section h2 {
      font-size: 2.5rem;
      margin-bottom: 3rem;
      text-align: center;
      position: relative;
      color: var(--primary-color);
      text-decoration: none;
    }

    .section h2::after {
      position: absolute;
      bottom: -10px;
      left: 50%;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background: var(--gradient-primary);
      border-radius: 2px;
    }

    /* Skills Grid */
    .skills-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
      margin-bottom: 3rem;
    }

    .skill-category {
      background: white;
      border-radius: 20px;
      padding: 2rem;
      box-shadow: 0 10px 30px rgba(0,0,0,0.1);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .skill-category::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--gradient-primary);
    }

    .skill-category:nth-child(even)::before {
      background: var(--gradient-secondary);
    }

    .skill-category:nth-child(3n)::before {
      background: var(--gradient-tertiary);
    }

    .skill-category:hover {
      transform: translateY(-10px);
      box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    }

    .skill-category h3 {
      font-size: 1.4rem;
      margin-bottom: 1.5rem;
      color: var(--primary-color);
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .skill-category i {
      font-size: 1.2rem;
      color: var(--secondary-color);
    }

    .skill-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
    }

    .skill-tag {
      background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
      color: white;
      padding: 0.5rem 1rem;
      border-radius: 25px;
      font-size: 0.9rem;
      font-weight: 500;
      transition: all 0.3s ease;
    }

    .skill-tag:hover {
      transform: scale(1.05);
      box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }

    /* Certifications and Recognitions */
    .cert-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
      gap: 2rem;
    }

    .cert-card, .recognition-card {
      background: white;
      border-radius: 15px;
      padding: 2rem;
      box-shadow: 0 8px 25px rgba(0,0,0,0.1);
      transition: all 0.3s ease;
      border-left: 5px solid var(--secondary-color);
    }

    .cert-card:hover, .recognition-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 35px rgba(0,0,0,0.15);
    }

    .cert-card h3, .recognition-card h3 {
      color: var(--primary-color);
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .cert-link {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      color: var(--secondary-color);
      text-decoration: none;
      font-weight: 600;
      transition: all 0.3s ease;
    }

    .cert-link:hover {
      color: var(--accent-color);
      transform: translateX(5px);
    }

    .recognition-item {
      background: var(--card-bg);
      padding: 1.5rem;
      border-radius: 10px;
      margin-bottom: 1rem;
      border-left: 4px solid var(--accent-color);
      transition: all 0.3s ease;
    }

    .recognition-item:hover {
      background: white;
      box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    }

    .languages-grid {
  display: flex; 
  flex-wrap: wrap; 
  justify-content: center; 
  gap: 1.5rem; 
  margin-top: 2rem; 
}

.language-item {
  background: white;
  border-radius: 10px; 
  padding: 1rem; 
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1); 
  text-align: center; 
  width: 150px; 
}


    .language-item::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--gradient-tertiary);
    }

    .language-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    }

    .language-name {
      font-weight: bold;
      color: var(--primary-color);
      margin-bottom: 0.5rem;
      font-size: 1.1rem;
    }

    .language-level {
      color: var(--secondary-color);
      font-weight: 600;
    }

    /* Responsive */
    @media (max-width: 768px) {
      .hero h1 {
        font-size: 2rem;
      }

      .hero p {
        font-size: 1rem;
      }

      .nav-container {
        justify-content: center;
        flex-direction: column;
      }

      .nav-links {
        gap: 1rem;
        justify-content: center;
      }

      .skills-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
      }

      .cert-grid {
        grid-template-columns: 1fr;
      }

      .languages-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      }
    }

    /* Scroll animations */
    .fade-in {
      opacity: 0;
      transform: translateY(30px);
      transition: all 0.6s ease;
    }

    .fade-in.visible {
      opacity: 1;
      transform: translateY(0);
    }
.download-btn {

  align-items: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
  color: white;
  padding: 0.7rem 1.5rem;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  transition: all 0.3s ease, background 0.4s ease;
  position: relative;
  overflow: hidden;
}

.download-btn i {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.download-btn::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255,255,255,0.15);
  transform: skewX(-20deg);
  transition: left 0.4s ease;
}

.download-btn:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.download-btn:hover i {
  transform: translateX(5px);
}

.download-btn:hover::before {
  left: 100%;
}

.download-btn:active {
  transform: scale(0.98);
}