/* filepath: css/style.css */
:root {
    --primary-color: #58a6ff;
    --secondary-color: #21262d;
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --text-primary: #f0f6fc;
    --text-secondary: #7d8590;
    --border-color: #30363d;
    --gradient-1: linear-gradient(135deg, #58a6ff 0%, #1f6feb 100%);
    --gradient-2: linear-gradient(135deg, #21262d 0%, #161b22 100%);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  [data-theme="light"] {
    --primary-color: #0969da;
    --secondary-color: #f6f8fa;
    --bg-color: #ffffff;
    --card-bg: #f6f8fa;
    --text-primary: #24292f;
    --text-secondary: #656d76;
    --border-color: #d0d7de;
    --gradient-1: linear-gradient(135deg, #0969da 0%, #0550ae 100%);
    --gradient-2: linear-gradient(135deg, #f6f8fa 0%, #eaeef2 100%);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-color);
    transition: var(--transition);
    overflow-x: hidden;
  }
  
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  /* Navigation */
  .navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
  }
  
  [data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.95);
  }
  
  .nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
  }
  
  .nav-logo a {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
  }
  
  .nav-logo span {
    color: var(--primary-color);
  }
  
  .nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
  }
  
  .nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
  }
  
  .nav-link:hover,
  .nav-link.active {
    color: var(--primary-color);
  }
  
  .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
  }
  
  .nav-link:hover::after,
  .nav-link.active::after {
    width: 100%;
  }
  
  .nav-toggle {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  
  .theme-toggle {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
  }
  
  .theme-toggle:hover {
    background: var(--primary-color);
    color: white;
  }
  
  .hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
  }
  
  .hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: var(--transition);
  }
  
  /* Hero Section */
  .hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    position: relative;
    overflow: hidden;
  }
  
  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(88, 166, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
  }
  
  .hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    min-height: 80vh;
  }
  
  .hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
  }
  
  .highlight {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  
  .typing-container {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    font-weight: 500;
    height: 60px;
  }
  
  .cursor {
    animation: blink 1s infinite;
  }
  
  @keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
  }
  
  .hero-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 500px;
  }
  
  .hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
  }
  
  .btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 15px rgba(88, 166, 255, 0.3);
  }
  
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(88, 166, 255, 0.4);
  }
  
  .btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
  }
  
  .btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
  }
  
  .social-links {
    display: flex;
    gap: 1rem;
  }
  
  .social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
  }
  
  .social-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
  }
  
  .hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .image-container {
    width: 400px;
    height: 400px;
    position: relative;
    background: var(--gradient-2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }
  
  .floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
  }
  
  .floating-element {
    position: absolute;
    background: var(--primary-color);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    animation: float 3s ease-in-out infinite;
  }
  
  .floating-element:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
  }
  
  .floating-element:nth-child(2) {
    top: 30%;
    right: 10%;
    animation-delay: 0.5s;
  }
  
  .floating-element:nth-child(3) {
    bottom: 30%;
    left: 15%;
    animation-delay: 1s;
  }
  
  .floating-element:nth-child(4) {
    bottom: 20%;
    right: 15%;
    animation-delay: 1.5s;
  }
  
  @keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
  }
  
  .scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
  }
  
  .scroll-arrow {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    animation: bounce 2s infinite;
  }
  
  @keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
      transform: translateY(0);
    }
    40% {
      transform: translateY(-10px);
    }
    60% {
      transform: translateY(-5px);
    }
  }
  
  /* Section Headers */
  .section-header {
    text-align: center;
    margin-bottom: 4rem;
  }
  
  .section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
  }
  
  .section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-1);
    border-radius: 2px;
  }
  
  .section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
  }
  
  /* About Section */
  .about {
    padding: 100px 0;
  }
  
  .about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }
  
  .about-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
  }
  
  .about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
  }
  
  .about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 2rem 0;
  }
  
  .stat {
    text-align: center;
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
  }
  
  .stat:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
  }
  
  .stat h4 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
  }
  
  .stat p {
    color: var(--text-secondary);
    font-size: 0.9rem;
  }
  
  .about-image {
    position: relative;
  }
  
  .image-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
  }
  
  .image-wrapper img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
  }
  
  .image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-1);
    opacity: 0.1;
    transition: var(--transition);
  }
  
  .image-wrapper:hover .image-overlay {
    opacity: 0.2;
  }
  
  /* Skills Section */
  .skills {
    padding: 100px 0;
    background: var(--card-bg);
  }
  
  .skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
  }
  
  .skill-category {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
  }
  
  .skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
  }
  
  .skill-category h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    font-size: 1.3rem;
  }
  
  .skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1rem;
  }
  
  .skill-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: var(--transition);
    text-align: center;
  }
  
  .skill-item:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
  }
  
  .skill-item i {
    font-size: 2rem;
    color: var(--primary-color);
  }
  
  .skill-item span {
    font-size: 0.9rem;
    color: var(--text-secondary);
  }
  
  /* Projects Section */
  .projects {
    padding: 100px 0;
  }
  
  .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
  }
  
  .project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
  }
  
  .project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
  }
  
  .project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
  }
  
  .project-swiper {
    height: 100%;
  }
  
  .project-swiper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
  }
  
  .project-card:hover .project-overlay {
    opacity: 1;
  }
  
  .project-links {
    display: flex;
    gap: 1rem;
  }
  
  .project-link {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
  }
  
  .project-link:hover {
    background: white;
    color: var(--primary-color);
  }
  
  .project-content {
    padding: 1.5rem;
  }
  
  .project-content h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
  }
  
  .project-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
  }
  
  .project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .project-tech span {
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
  }
  
  /* Contact Section */
  .contact {
    padding: 100px 0;
    background: var(--card-bg);
  }
  
  .contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
  
  .contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
  }
  
  .contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
  }
  
  .contact-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
  }
  
  .contact-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
  }
  
  .contact-item i {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
  }
  
  .contact-item h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
  }
  
  .contact-item p {
    color: var(--text-secondary);
  }
  
  .contact-form {
    background: var(--bg-color);
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
  }
  
  .form-group {
    margin-bottom: 1.5rem;
  }
  
  .form-group input,
  .form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    transition: var(--transition);
  }
  
  .form-group input:focus,
  .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
  }
  
  .form-group input::placeholder,
  .form-group textarea::placeholder {
    color: var(--text-secondary);
  }
  
  .form-group textarea {
    resize: vertical;
    min-height: 120px;
  }
  
  /* Footer */
  .footer {
    background: var(--bg-color);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
  }
  
  .footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .footer-text p {
    color: var(--text-secondary);
  }
  
  .footer-social {
    display: flex;
    gap: 1rem;
  }
  
  .footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
  }
  
  .footer-social a:hover {
    background: var(--primary-color);
    color: white;
  }
  
  /* Responsive Design */
  @media (max-width: 768px) {
    .hamburger {
      display: flex;
    }
    
    .nav-menu {
      position: fixed;
      left: -100%;
      top: 70px;
      flex-direction: column;
      background: var(--bg-color);
      width: 100%;
      text-align: center;
      transition: 0.3s;
      box-shadow: var(--shadow);
      padding: 2rem 0;
      border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
      left: 0;
    }
    
    .hero-container {
      grid-template-columns: 1fr;
      text-align: center;
      gap: 2rem;
    }
    
    .hero-content h1 {
      font-size: 2.5rem;
    }
    
    .hero-buttons {
      flex-direction: column;
      align-items: center;
    }
    
    .about-content {
      grid-template-columns: 1fr;
      gap: 2rem;
    }
    
    .about-stats {
      grid-template-columns: 1fr;
    }
    
    .contact-content {
      grid-template-columns: 1fr;
      gap: 2rem;
    }
    
    .footer-content {
      flex-direction: column;
      gap: 1rem;
      text-align: center;
    }
    
    .section-header h2 {
      font-size: 2rem;
    }
  }
  
  @media (max-width: 480px) {
    .hero-content h1 {
      font-size: 2rem;
    }
    
    .typing-container {
      font-size: 1.2rem;
    }
    
    .projects-grid {
      grid-template-columns: 1fr;
    }
    
    .skills-container {
      grid-template-columns: 1fr;
    }
  }
  
  /* Animations */
  [data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
  }
  
  [data-aos].aos-animate {
    opacity: 1;
  }
  
  /* Swiper Customization */
  .swiper-pagination-bullet {
    background: var(--primary-color);
  }
  
  .swiper-pagination-bullet-active {
    background: var(--primary-color);
  }