:root {
        --navy: #0a1a3e;
        --blue: #0077ff;
        --white: #f4f7fa;
        --gray: #4b5563;
        --emerald: #00c46c;
        --light-blue: rgba(0, 119, 255, 0.1);
      }

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

      body {
        font-family: "Inter", sans-serif;
        background-color: var(--white);
        color: var(--gray);
        line-height: 1.6;
        overflow-x: hidden;
      }

      h1,
      h2,
      h3,
      h4 {
        color: #00e6a4;
        font-weight: 700;
        line-height: 1.2;
      }

      .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
      }

      .btn {
        display: inline-block;
        padding: 14px 32px;
        border-radius: 4px;
        font-weight: 600;
        text-decoration: none;
        transition: all 0.3s ease;
        cursor: pointer;
      }

      .btn-primary {
        background-color: #00e6a4;
        color: white;
        border: none;
      }

      .btn-primary:hover {
        background-color: #0055cc;
        transform: translateY(-2px);
        box-shadow: 0 10px 20px rgba(0, 119, 255, 0.2);
      }

      .btn-secondary {
        background-color: transparent;
        color: var(--navy);
        border: 2px solid var(--navy);
      }

      .btn-secondary:hover {
        background-color: var(--navy);
        color: white;
      }

      section {
        padding: 100px 0;
      }

      .section-header {
        text-align: center;
        margin-bottom: 60px;
      }

      .section-header h2 {
        font-size: 2.5rem;
        margin-bottom: 20px;
        position: relative;
        display: inline-block;
      }

      .section-header h2:after {
        content: "";
        position: absolute;
        bottom: -10px;
        left: 50%;
        transform: translateX(-50%);
        width: 80px;
        height: 4px;
        background: linear-gradient(90deg, var(--blue), var(--emerald));
        border-radius: 2px;
      }

      .section-header p {
        max-width: 700px;
        margin: 0 auto;
        font-size: 1.1rem;
      }

      /* Header & Navigation */
      header {
        background-color: black;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        position: fixed;
        width: 100%;
        z-index: 1000;
      }

      .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 0;
      }

      .logo {
        font-size: 1.8rem;
        font-weight: 700;
        color: white;
        text-decoration: none;
        display: flex;
        align-items: center;
      }

      .logo span {
        color: #00e6a4;
      }

      .logo i {
        margin-right: 8px;
        color: var(--emerald);
      }

      .nav-links {
        display: flex;
        list-style: none;
      }

      .nav-links li {
        margin-left: 30px;
      }

      .nav-links a {
        text-decoration: none;
        color: white;
        font-weight: 500;
        transition: color 0.3s ease;
        position: relative;
      }

      .nav-links a:hover {
        color: var(--blue);
      }

      .nav-links a.active {
        color: var(--blue);
      }

      .nav-links a.active:after {
        content: "";
        position: absolute;
        bottom: -5px;
        left: 0;
        width: 100%;
        height: 2px;
        background-color: var(--blue);
      }

      .mobile-menu {
        display: none;
        font-size: 1.5rem;
        cursor: pointer;
      }

      /* Hero Section */
    .hero {
  position: relative;
  background: url('https://images.unsplash.com/photo-1639322537228-f710d846310a?ixlib=rb-4.1.0&ixid=M3wxMjA3fDB8MHxzZWFyY2h8MTc4fHxpbWFnZXMlMjAzRCUyMGZvciUyMGElMjB0ZWNoJTIwY29tcGFueSUyMHdlYnNpdGV8ZW58MHx8MHx8fDA%3D&auto=format&fit=crop&q=60&w=1920')
    center/cover no-repeat;
  color: white;
  padding: 180px 0 160px;
  overflow: hidden;
}

      .hero-content {
        max-width: 800px;
        margin: 0 auto;
        text-align: center;
        position: relative;
        z-index: 2;
      }

      .hero h1 {
        font-size: 3.5rem;
        color: #00e6a4;
        margin-bottom: 20px;
        opacity: 0;
        transform: translateY(30px);
        animation: fadeInUp 1s ease forwards 0.5s;
      }

      .hero p {
        font-size: 1.3rem;
        margin-bottom: 40px;
        opacity: 0.9;
        opacity: 0;
        transform: translateY(30px);
        animation: fadeInUp 1s ease forwards 0.8s;
      }

      .hero-btns {
        display: flex;
        justify-content: center;
        gap: 20px;
        margin-bottom: 60px;
        opacity: 0;
        transform: translateY(30px);
        animation: fadeInUp 1s ease forwards 1.1s;
      }

      .hero .btn-secondary {
        color: white;
        border-color: white;
      }

      .hero .btn-secondary:hover {
        background-color: white;
        color: var(--navy);
      }

      .hero-shapes {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        overflow: hidden;
        z-index: 1;
      }

      .shape {
        position: absolute;
        border-radius: 50%;
        background: linear-gradient(
          135deg,
          rgba(0, 119, 255, 0.1) 0%,
          rgba(0, 196, 108, 0.1) 100%
        );
      }

      .shape-1 {
        width: 300px;
        height: 300px;
        top: -150px;
        right: -100px;
        animation: float 20s infinite ease-in-out;
      }

      .shape-2 {
        width: 200px;
        height: 200px;
        bottom: -50px;
        left: -50px;
        animation: float 15s infinite ease-in-out reverse;
      }

      /* Tech Categories */
      .tech-categories {
        background-color: white;
      }

      .category-tabs {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 15px;
        margin-bottom: 50px;
      }

      .category-tab {
        padding: 12px 24px;
        background-color: var(--white);
        border: 1px solid #e0e0e0;
        border-radius: 30px;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.3s ease;
      }

      .category-tab:hover {
        background-color: var(--light-blue);
        border-color: var(--blue);
      }

      .category-tab.active {
        background-color: #00e6a4;
        color: white;
        border-color: none;
      }

      .tech-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 30px;
      }

      .tech-card {
        background-color: black;
        border-radius: 8px;
        padding: 30px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        transition: all 0.3s ease;
        text-align: center;
        opacity: 0;
        transform: translateY(30px);
      }

      .tech-card.visible {
        opacity: 1;
        transform: translateY(0);
      }

      .tech-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
      }

      .tech-icon {
        width: 80px;
        height: 80px;
        margin: 0 auto 20px;
        background-color: var(--light-blue);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 2rem;
        color: #00e6a4;
      }

      .tech-card h3 {
        margin-bottom: 15px;
        font-size: 1.3rem;
        color: #00e6a4;
      }

      .tech-card p {
        margin-bottom: 20px;
        font-size: 0.95rem;
        color: white;
      }

      .tech-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        justify-content: center;
      }

      .tech-tag {
        padding: 5px 12px;
        background-color: #00e6a4;
        border-radius: 20px;
        font-size: 0.8rem;
        font-weight: 500;
        color: black;
        border: 1px solid var(--light-blue);
      }

      /* Tech Stack Section */
      .tech-stack {
        background-color: black;
      }
      .tech-stack h2{
        color: #00e6a4;
      }
      .tech-stack p{
        color: white;
      }

      .stack-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 30px;
      }

      .stack-category {
        background-color: white;
        border-radius: 8px;
        padding: 30px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
      }

      .stack-category h3 {
        margin-bottom: 20px;
        font-size: 1.3rem;
        display: flex;
        align-items: center;
        gap: 10px;
      }

      .stack-category h3 i {
        color: #00e6a4;
      }

      .stack-items {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
      }

      .stack-item {
        padding: 8px 16px;
        background-color: var(--white);
        border-radius: 4px;
        font-size: 0.9rem;
        font-weight: 500;
        transition: all 0.3s ease;
        border: 1px solid #e0e0e0;
      }

      .stack-item:hover {
        background-color: #00e6a4;
        border-color: none;
        transform: translateY(-2px);
        color: white;
      }

      /* Certifications */
      .certifications {
        background-color: white;
      }

      .cert-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
      }

      .cert-card {
        background-color: black;
        border-radius: 8px;
        padding: 30px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        text-align: center;
        transition: transform 0.3s ease;
        opacity: 0;
        transform: translateY(30px);
      }

      .cert-card.visible {
        opacity: 1;
        transform: translateY(0);
      }

      .cert-card:hover {
        transform: translateY(-10px);
      }

      .cert-icon {
        width: 70px;
        height: 70px;
        margin: 0 auto 20px;
        background-color: var(--light-blue);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.8rem;
        color: #00e6a4;
      }

      .cert-card h3 {
        margin-bottom: 10px;
        font-size: 1.2rem;
        color: #00e6a4;
      }

      .cert-card p{
        color: white;
      }

      /* CTA Section */
      .cta {
        background: linear-gradient(135deg, var(--navy) 0%, #1a2d5e 100%);
        color: white;
        text-align: center;
      }

      .cta h2 {
        color:#00e6a4;
        margin-bottom: 20px;
      }

      .cta p {
        max-width: 700px;
        margin: 0 auto 30px;
        font-size: 1.1rem;
        opacity: 0.9;
      }

      /* Footer */
      footer {
        background-color: black;
        color: white;
        padding: 70px 0 30px;
      }

      .footer-content {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 50px;
      }

      .footer-col h3 {
        color:var(--emerald);
        margin-bottom: 25px;
        font-size: 1.3rem;
        position: relative;
      }

      .footer-col h3:after {
        content: "";
        position: absolute;
        bottom: -10px;
        left: 0;
        width: 40px;
        height: 3px;
        background-color: #00e6a4;
      }

      .footer-col p {
        margin-bottom: 20px;
        opacity: 0.8;
      }

      .footer-links {
        list-style: none;
      }

      .footer-links li {
        margin-bottom: 12px;
      }

      .footer-links a {
        color: white;
        text-decoration: none;
        opacity: 0.8;
        transition: opacity 0.3s ease;
      }

      .footer-links a:hover {
        opacity: 1;
      }

      .social-links {
        display: flex;
        gap: 15px;
        margin-top: 20px;
      }

      .social-link {
        width: 40px;
        height: 40px;
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        text-decoration: none;
        transition: background-color 0.3s ease;
      }

      .social-link:hover {
        background-color: var(--blue);
      }

      .footer-bottom {
        text-align: center;
        padding-top: 30px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        opacity: 0.7;
        font-size: 0.9rem;
      }

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

      @keyframes float {
        0%,
        100% {
          transform: translateY(0) rotate(0deg);
        }
        50% {
          transform: translateY(-20px) rotate(5deg);
        }
      }

      /* Particle Animation */
      .particles {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        overflow: hidden;
        z-index: 1;
      }

      .particle {
        position: absolute;
        background-color: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        animation: floatParticle 15s infinite linear;
      }

      @keyframes floatParticle {
        0% {
          transform: translateY(100vh) rotate(0deg);
          opacity: 0;
        }
        10% {
          opacity: 1;
        }
        90% {
          opacity: 1;
        }
        100% {
          transform: translateY(-100px) rotate(360deg);
          opacity: 0;
        }
      }

      /* Responsive Design */
      @media (max-width: 992px) {
        .footer-content {
          grid-template-columns: 1fr 1fr;
        }
      }

      @media (max-width: 768px) {
        .nav-links {
          display: none;
          position: absolute;
          top: 100%;
          left: 0;
          width: 100%;
          background-color: black;
          flex-direction: column;
          padding: 20px;
          box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }

        .nav-links.active {
          display: flex;
        }

        .nav-links li {
          margin: 10px 0;
        }

        .mobile-menu {
          display: block;
        }

        .mobile-menu i{
          color: white;
        }
        .hero h1 {
          font-size: 2.5rem;
        }

        .hero-btns {
          flex-direction: column;
          align-items: center;
        }

        .hero-btns .btn {
          width: 100%;
          max-width: 250px;
          margin-bottom: 10px;
        }

        .section-header h2 {
          font-size: 2rem;
        }

        .footer-content {
          grid-template-columns: 1fr;
        }

        .category-tabs {
          flex-direction: column;
          align-items: center;
        }

        .category-tab {
          width: 100%;
          max-width: 250px;
          text-align: center;
        }
      }