/* Base Styles and Variables */
:root {
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-secondary: #0d9488;
    --color-bg-light: #ffffff;
    --color-bg-dark: #121212;
    --color-text-light: #1f2937;
    --color-text-dark: #f3f4f6;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-24: 6rem;
  }
  
  /* Theme Modes */
  .light-mode {
    --color-bg: var(--color-bg-light);
    --color-text: var(--color-text-light);
    --color-card-bg: var(--color-bg-light);
    --color-card-border: var(--color-gray-200);
    --color-input-bg: var(--color-bg-light);
    --color-input-border: var(--color-gray-300);
  }
  
  .dark-mode {
    --color-bg: var(--color-bg-dark);
    --color-text: var(--color-text-dark);
    --color-card-bg: var(--color-gray-800);
    --color-card-border: var(--color-gray-700);
    --color-input-bg: var(--color-gray-800);
    --color-input-border: var(--color-gray-700);
  }
  
  /* Reset & Global Styles */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    transition: background-color 0.3s ease, color 0.3s ease;
  }
  
  a {
    text-decoration: none;
    color: inherit;
  }
  
  ul {
    list-style: none;
  }
  
  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
  }
  
  section {
    padding: var(--spacing-24) 0;
  }
  
  h1, h2, h3 {
    line-height: 1.2;
  }
  
  h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-4);
    text-align: center;
  }
  
  .section-desc {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-12);
    color: var(--color-gray-500);
    font-size: 1.1rem;
  }
  
  .gradient-text {
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  
  /* Theme Toggle */
  .theme-toggle {
    position: fixed;
    top: var(--spacing-4);
    right: var(--spacing-4);
    z-index: 1000;
  }
  
  .theme-toggle button {
    background: transparent;
    border: none;
    color: var(--color-text);
    font-size: 1.25rem;
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--radius-full);
    transition: var(--transition);
  }
  
  .theme-toggle button:hover {
    background-color: rgba(0, 0, 0, 0.1);
  }
  
  .dark-mode .theme-toggle button:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
  
  /* Navbar */
  .navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: var(--spacing-4) 0;
    transition: var(--transition);
    background-color: transparent;
  }
  
  .navbar.scrolled {
    background-color: var(--color-bg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-2) 0;
  }
  
  .navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  
  .nav-menu {
    display: flex;
    gap: var(--spacing-8);
  }
  
  .nav-link {
    position: relative;
    transition: var(--transition);
  }
  
  .nav-link:after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    transition: var(--transition);
  }
  
  .nav-link:hover:after,
  .nav-link.active:after {
    width: 100%;
  }
  
  .nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
  }
  
  .nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-text);
    transition: var(--transition);
  }
  
  /* Hero Section */
  .hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.02)) var(--color-bg);
  }
  
  .hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
  }
  
  .profile-image {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-6);
    border-radius: var(--radius-full);
    padding: 4px;
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
  }
  
  .profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-full);
  }
  
  .hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-4);
  }
  
  .hero p {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-8);
    color: var(--color-gray-500);
  }
  
  .hero-buttons {
    display: flex;
    gap: var(--spacing-4);
    justify-content: center;
  }
  
  .btn {
    display: inline-block;
    padding: var(--spacing-3) var(--spacing-8);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
  }
  
  .btn.primary {
    background-color: var(--color-primary);
    color: white;
  }
  
  .btn.primary:hover {
    background-color: var(--color-primary-hover);
  }
  
  .btn.secondary {
    background-color: transparent;
    border: 1px solid var(--color-gray-300);
    color: var(--color-text);
  }
  
  .btn.secondary:hover {
    background-color: var(--color-gray-100);
  }
  
  .dark-mode .btn.secondary:hover {
    background-color: var(--color-gray-700);
  }
  
  .scroll-down {
    position: absolute;
    bottom: var(--spacing-8);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
  }
  
  .scroll-down i {
    font-size: 1.5rem;
    color: var(--color-gray-500);
  }
  
  @keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
      transform: translateY(0);
    }
    40% {
      transform: translateY(-15px);
    }
    60% {
      transform: translateY(-5px);
    }
  }
  
  /* About Section */
  .about-content {
    display: flex;
    gap: var(--spacing-12);
    align-items: center;
  }
  
  .about-text,
  .about-image {
    flex: 1;
  }
  
  .about-image {
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-lg);
  }
  
  .about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 80px;
    height: 80px;
    background-color: var(--color-secondary);
    opacity: 0.2;
    border-radius: var(--radius-md);
    z-index: -1;
  }
  
  .about-image::after {
    content: '';
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 80px;
    height: 80px;
    background-color: var(--color-primary);
    opacity: 0.2;
    border-radius: var(--radius-md);
    z-index: -1;
  }
  
  .about h2 {
    text-align: left;
    margin-bottom: var(--spacing-6);
  }
  
  .about p {
    margin-bottom: var(--spacing-4);
    color: var(--color-gray-500);
    line-height: 1.7;
  }
  
  .tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    margin-top: var(--spacing-6);
  }
  
  .tags span {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    background-color: var(--color-gray-100);
    color: var(--color-gray-700);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
  }
  
  .dark-mode .tags span {
    background-color: var(--color-gray-800);
    color: var(--color-gray-200);
  }
  
  /* Projects Section */
  .projects {
    background-color: var(--color-gray-100);
  }
  
  .dark-mode .projects {
    background-color: var(--color-gray-900);
  }
  
  .project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-12);
  }
  
  .project-card {
    background-color: var(--color-card-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    transform: translateY(0);
  }
  
  .project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
  }
  
  .project-image {
    height: 200px;
    position: relative;
    overflow: hidden;
  }
  
  .project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }
  
  .project-card:hover .project-image img {
    transform: scale(1.1);
  }
  
  .project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    opacity: 0;
    transition: var(--transition);
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-4);
  }
  
  .project-card:hover .project-overlay {
    opacity: 1;
  }
  
  .project-links {
    display: flex;
    gap: var(--spacing-2);
  }
  
  .project-links a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(4px);
    color: white;
    transition: var(--transition);
  }
  
  .project-links a:hover {
    background-color: rgba(255, 255, 255, 0.3);
  }
  
  .project-info {
    padding: var(--spacing-4);
    flex: 1;
    display: flex;
    flex-direction: column;
  }
  
  .project-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-2);
  }
  
  .project-description {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-4);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
  }
  
  .project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
  }
  
  .project-tags span {
    display: inline-block;
    padding: 4px 8px;
    background-color: var(--color-gray-100);
    color: var(--color-gray-700);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
  }
  
  .dark-mode .project-tags span {
    background-color: var(--color-gray-700);
    color: var(--color-gray-300);
  }
  
  .project-buttons {
    text-align: center;
  }
  
  #show-less-btn {
    display: none;
  }
  
  /* Skills Section */
  .skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-6);
  }
  
  .skill-card {
    background-color: var(--color-card-bg);
    border-radius: var(--radius-md);
    padding: var(--spacing-6);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
  }
  
  .skill-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
  }
  
  .skill-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-4);
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    transition: var(--transition);
  }
  
  .dark-mode .skill-icon {
    background-color: rgba(79, 70, 229, 0.2);
  }
  
  .skill-card:hover .skill-icon {
    transform: scale(1.1);
  }
  
  .skill-name {
    font-weight: 500;
  }
  
  /* Contact Section */
  .contact {
    background-color: var(--color-gray-100);
  }
  
  .dark-mode .contact {
    background-color: var(--color-gray-900);
  }
  
  .social-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-16);
  }
  
  .social-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    background-color: var(--color-card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
  }
  
  .social-link:hover {
    box-shadow: var(--shadow-md);
    color: var(--color-primary);
  }
  
  .contact-form {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--color-card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-8);
  }
  
  .contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-6);
    text-align: center;
  }
  
  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-6);
  }
  
  .form-group {
    margin-bottom: var(--spacing-6);
  }
  
  label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-size: 0.875rem;
    color: var(--color-gray-500);
  }
  
  input, textarea {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    border: 1px solid var(--color-input-border);
    border-radius: var(--radius-md);
    background-color: var(--color-input-bg);
    color: var(--color-text);
    transition: var(--transition);
  }
  
  input:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
  }
  
  textarea {
    resize: none;
  }
  
  /* Footer */
  .footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-400);
    padding: var(--spacing-12) 0 var(--spacing-4);
  }
  
  .footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-8);
  }
  
  .footer-info {
    max-width: 300px;
  }
  
  .footer-info p {
    margin-top: var(--spacing-4);
    font-size: 0.875rem;
  }
  
  .footer-social {
    display: flex;
    gap: var(--spacing-4);
  }
  
  .footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background-color: var(--color-gray-800);
    color: var(--color-gray-400);
    transition: var(--transition);
  }
  
  .footer-social a:hover {
    background-color: var(--color-primary);
    color: white;
  }
  
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--color-gray-800);
    font-size: 0.875rem;
  }
  
  .footer-links {
    display: flex;
    gap: var(--spacing-6);
  }
  
  .footer-links a:hover {
    color: var(--color-gray-200);
  }
  
  /* Media Queries */
  @media (max-width: 992px) {
    .about-content {
      flex-direction: column-reverse;
    }
    
    .about-image, .about-text {
      width: 100%;
    }
    
    .about h2 {
      text-align: center;
    }
  }
  
  @media (max-width: 768px) {
    h2 {
      font-size: 1.75rem;
    }
    
    .hero h1 {
      font-size: 2.5rem;
    }
    
    .hero p {
      font-size: 1.25rem;
    }
    
    .nav-menu {
      position: fixed;
      top: 0;
      right: -100%;
      flex-direction: column;
      width: 70%;
      height: 100vh;
      padding: var(--spacing-24) var(--spacing-6);
      background-color: var(--color-bg);
      box-shadow: var(--shadow-lg);
      transition: 0.4s;
      z-index: 99;
    }
    
    .nav-menu.active {
      right: 0;
    }
    
    .nav-toggle {
      display: flex;
      z-index: 100;
    }
    
    .nav-toggle.active span:nth-child(1) {
      transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
      opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
      transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .form-row {
      grid-template-columns: 1fr;
    }
    
    .footer-content {
      flex-direction: column;
      gap: var(--spacing-6);
    }
    
    .footer-info {
      max-width: 100%;
      text-align: center;
    }
    
    .footer-social {
      justify-content: center;
    }
    
    .footer-bottom {
      flex-direction: column;
      gap: var(--spacing-4);
      text-align: center;
    }
    
    .footer-links {
      justify-content: center;
    }
  }
  
  @media (max-width: 576px) {
    section {
      padding: var(--spacing-16) 0;
    }
    
    .hero-buttons {
      flex-direction: column;
      gap: var(--spacing-4);
    }
    
    .social-links {
      flex-direction: column;
      align-items: center;
    }
    
    .contact-form {
      padding: var(--spacing-6) var(--spacing-4);
    }
  }