/* Root Variables */
 :root {
     --bg-primary: #0f172a;
     --bg-secondary: #1e293b;
     --text-primary: #e2e8f0;
     --text-secondary: #94a3b8;
     --accent: #3b82f6;
     --accent-hover: #2563eb;
     --card-bg: #1e293b;
     --border-color: #334155;
 }

 /* Reset & Base Styles */
 * {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
     font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
 }

 html {
     scroll-behavior: smooth;
 }

 body {
     background-color: var(--bg-primary);
     color: var(--text-primary);
     line-height: 1.6;
 }

 /* Header */
 header {
     background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
     min-height: 100vh;
     display: flex;
     align-items: center;
     justify-content: center;
     position: relative;
     padding: 2rem;
 }

 .header-content {
     text-align: center;
     max-width: 800px;
 }

 .profile-img {
     width: 200px;
     height: 200px;
     border-radius: 50%;
     margin-bottom: 2rem;
     border: 4px solid var(--accent);
     object-fit: cover;
     box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
 }

 .scroll-down {
     position: absolute;
     bottom: 2rem;
     left: 50%;
     transform: translateX(-50%);
     animation: bounce 2s infinite;
     color: var(--accent);
     cursor: pointer;
     font-size: 24px;
 }

 @keyframes bounce {

     0%,
     100% {
         transform: translateY(0);
     }

     50% {
         transform: translateY(-10px);
     }
 }

 /* Navigation */
 nav {
     background-color: rgba(15, 23, 42, 0.9);
     backdrop-filter: blur(10px);
     padding: 1rem;
     position: fixed;
     width: 100%;
     top: 0;
     z-index: 1000;
     transition: transform 0.3s ease;
 }

 nav.hidden {
     transform: translateY(-100%);
 }

 nav ul {
     display: flex;
     justify-content: center;
     list-style: none;
     gap: 2rem;
     flex-wrap: wrap;
 }

 nav a {
     color: var(--text-primary);
     text-decoration: none;
     font-weight: 500;
     transition: all 0.3s ease;
     padding: 0.5rem 1rem;
     border-radius: 4px;
 }

 nav a:hover {
     color: var(--accent);
     background-color: var(--bg-secondary);
 }

 /* Main Content */
 main {
     max-width: 1200px;
     margin: 0 auto;
     padding: 2rem;
 }

 section {
     margin: 6rem 0;
     display: block;
     opacity: 1;
     transform: translateY(0);
     transition: opacity 0.6s ease, transform 0.6s ease;
 }

 h2 {
     color: var(--accent);
     margin-bottom: 2rem;
     font-size: 2rem;
     position: relative;
     display: inline-block;
 }

 h2::after {
     content: '';
     position: absolute;
     bottom: -5px;
     left: 0;
     width: 100%;
     height: 3px;
     background: linear-gradient(to right, var(--accent), transparent);
 }

 /* Projects Grid */
 .projects-grid {
     display: grid;
     grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
     gap: 2rem;
 }

 .project-card {
     background: var(--card-bg);
     border-radius: 15px;
     overflow: hidden;
     box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
     transition: all 0.3s ease;
     border: 1px solid var(--border-color);
 }

 .project-card:hover {
     transform: translateY(-10px);
     box-shadow: 0 8px 30px rgba(59, 130, 246, 0.2);
 }

 .project-img {
     width: 100%;
     height: 200px;
     object-fit: fill;
 }

 .project-info {
     padding: 1.5rem;
 }

 .project-info h3 {
     color: var(--accent);
     margin-bottom: 1rem;
 }

 /* Skills Section */
 .skills-container {
     display: grid;
     grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
     gap: 2rem;
 }

 .skill-item {
     background: var(--card-bg);
     padding: 1.5rem;
     border-radius: 15px;
     border: 1px solid var(--border-color);
     transition: transform 0.3s ease;
 }

 .skill-item:hover {
     transform: translateY(-5px);
 }

 .skill-name {
     margin-bottom: 1rem;
     font-weight: 500;
     color: var(--accent);
 }

 .progress-bar {
     height: 8px;
     background: var(--bg-primary);
     border-radius: 4px;
     overflow: hidden;
 }

 .progress {
     height: 100%;
     background: linear-gradient(90deg, var(--accent), var(--accent-hover));
     border-radius: 4px;
     transition: width 1s ease;
 }

 /* Contact Form */
 .contact-form {
     max-width: 600px;
     margin: 0 auto;
     background: var(--card-bg);
     padding: 2rem;
     border-radius: 15px;
     border: 1px solid var(--border-color);
 }

 .form-group {
     margin-bottom: 1.5rem;
 }

 label {
     display: block;
     margin-bottom: 0.5rem;
     color: var(--text-secondary);
 }

 input,
 textarea {
     width: 100%;
     padding: 0.8rem;
     background: var(--bg-primary);
     border: 1px solid var(--border-color);
     border-radius: 8px;
     color: var(--text-primary);
     transition: border-color 0.3s ease;
 }

 input:focus,
 textarea:focus {
     outline: none;
     border-color: var(--accent);
 }

 button {
     background: var(--accent);
     color: white;
     padding: 1rem 2rem;
     border: none;
     border-radius: 8px;
     cursor: pointer;
     transition: all 0.3s ease;
     width: 100%;
     font-weight: 500;
 }

 button:hover {
     background: var(--accent-hover);
     transform: translateY(-2px);
 }

 /* Footer */
 footer {
     background: var(--bg-secondary);
     color: var(--text-secondary);
     text-align: center;
     padding: 3rem 0;
     margin-top: 4rem;
 }

 .social-links {
     margin-top: 1.5rem;
     display: flex;
     justify-content: center;
     gap: 1.5rem;
 }

 .social-links a {
     color: var(--text-primary);
     text-decoration: none;
     padding: 0.5rem 1rem;
     border-radius: 8px;
     background: var(--bg-primary);
     transition: all 0.3s ease;
 }

 .social-links a:hover {
     color: var(--accent);
     transform: translateY(-3px);
 }

 /* Mobile Responsive */
 @media (max-width: 768px) {
     header {
         padding: 1rem;
     }

     .profile-img {
         width: 150px;
         height: 150px;
     }

     nav {
         padding: 0.5rem;
     }

     nav ul {
         flex-direction: column;
         align-items: center;
     }

     nav a {
         display: block;
         padding: 0.8rem;
         width: 100%;
         text-align: center;
     }

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

     section {
         margin: 3rem 0;
     }

     h2 {
         font-size: 1.5rem;
     }
 }

 .mobile-menu-button {
     display: none;
     position: fixed;
     top: 1rem;
     right: 1rem;
     z-index: 1001;
     background: var(--accent);
     border: none;
     padding: 0.5rem;
     border-radius: 5px;
     cursor: pointer;
     width: 45px;
     height: 45px;
     justify-content: center;
     align-items: center;
     flex-direction: column;
     gap: 6px;
 }

 .mobile-menu-button span {
     display: block;
     width: 25px;
     height: 2px;
     background: white;
     transition: all 0.3s ease;
 }

 .mobile-menu-button.active span:nth-child(1) {
     transform: rotate(45deg) translate(6px, 6px);
 }

 .mobile-menu-button.active span:nth-child(2) {
     opacity: 0;
 }

 .mobile-menu-button.active span:nth-child(3) {
     transform: rotate(-45deg) translate(6px, -6px);
 }

 @media (max-width: 768px) {
     .mobile-menu-button {
         display: flex;
     }

     nav {
         position: fixed;
         top: 0;
         left: 0;
         width: 100%;
         height: 100vh;
         background: var(--bg-primary);
         transform: translateX(100%);
         transition: transform 0.3s ease;
         display: flex;
         align-items: center;
         justify-content: center;
         padding: 2rem;
     }

     nav.active {
         transform: translateX(0);
     }

     nav ul {
         flex-direction: column;
         align-items: center;
         gap: 2rem;
     }

     nav a {
         font-size: 1.2rem;
         padding: 1rem 2rem;
         width: 200px;
         text-align: center;
         background: var(--bg-secondary);
         border-radius: 8px;
         display: block;
     }

     nav a:hover {
         background: var(--accent);
         color: white;
         transform: scale(1.05);
     }

     .header-content h1 {
         font-size: 2rem;
     }

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

     section {
         margin: 3rem 0;
         padding: 0 1rem;
     }

     .skills-container {
         grid-template-columns: 1fr;
     }

     .contact-form {
         padding: 1.5rem;
     }
 }