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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            background: #0a0a0a;
            color: #fff;
        }

        /* Navbar Styles */
        .navbar {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            padding: 1rem 0;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
                 box-shadow: 0 0px 10px rgba(102, 126, 234, 0.4);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .nav-logo {
           color:yellow;
            font-size: 1.8rem;
            font-weight: bold;
            text-decoration: none;
            transition: transform 0.3s ease;
        }

        .nav-logo:hover {
            transform: scale(1.05);
            color: white;
        }

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

        .nav-item {
            position: relative;
        }

        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 25px;
            transition: all 0.3s ease;
            position: relative;
            font-weight: bold;
        }

        .nav-link:hover {
         color: yellow;
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-5px);
        }

        .nav-link.active {
            background: rgba(255, 255, 255, 0.3);
        }

        /* Hamburger Menu */
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            width: 30px;
            height: 25px;
            justify-content: space-between;
        }

        .hamburger span {
            width: 100%;
            height: 3px;
            background: white;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(8px, 8px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -6px);
        }

        /* Home Section Styles */
        .home {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 0 5%;
            margin-top: 80px;
            background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
        }

        .home-info {
            flex: 1;
            max-width: 600px;
            padding-right: 2rem;
        }

        .home-info h1 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            background: linear-gradient(135deg, #667eea, #764ba2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: fadeInUp 1s ease-out;
        }

        .home-info h2 {
            font-size: 1.8rem;
            color: #64ffda;
            margin-bottom: 1rem;
            font-weight: 400;
            animation: fadeInUp 1s ease-out 0.2s both;
        }

        .home-info p {
            font-size: 1.1rem;
            color: #ccc;
            margin-bottom: 2rem;
            line-height: 1.8;
            animation: fadeInUp 1s ease-out 0.4s both;
        }

        .home-info p a {
            color: #667eea;
            text-decoration: none;
            font-weight: bold;
            transition: color 0.3s ease;
        }

        .home-info p a:hover {
            color: #64ffda;
        }

        .btn-sci {
            display: flex;
            align-items: center;
            gap: 2rem;
            animation: fadeInUp 1s ease-out 0.6s both;
        }

        .btn {
              box-shadow: 0 0px 10px rgba(102, 126, 234, 0.4);
            display: inline-block;
            padding: 12px 25px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            text-decoration: none;
            border-radius: 25px;
            font-weight: 600;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 0px 10px rgba(102, 126, 234, 0.4);
        }

        .sci {
            display: flex;
            gap: 1rem;
        }

        .sci a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 45px;
            height: 45px;
            background: rgba(255, 255, 255, 0.1);
            border: 2px solid rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            color: #fff;
            font-size: 1.5rem;
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .sci a:hover {
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-color: transparent;
            transform: translateY(-3px) scale(1.1);
                 box-shadow: 0 0px 10px rgba(102, 126, 234, 0.4);
        }

        /* Home Image */
        .home-image {
            flex: 1;
            display: flex;
            justify-content: center;
            align-items: center;
            padding-left: 2rem;
        }

        .img-box {
            position: relative;
            width: 350px;
            height: 350px;
            animation: fadeInUp 1s ease-out 0.8s both;
        }

        .img-item {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            overflow: hidden;
            border: 4px solid rgba(102, 126, 234, 0.5);
            box-shadow: 0 0 30px rgba(102, 126, 234, 0.3);
            transition: all 0.3s ease;
        }

        .img-item:hover {
            transform: scale(1.05);
            border-color: #64ffda;
            box-shadow: 0 0 40px rgba(100, 255, 218, 0.5);
        }

        .img-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(1.1) contrast(1.1);
        }

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

        /* Mobile Responsive */
        @media screen and (max-width: 768px) {
            .hamburger {
                display: flex;
            }

            .nav-menu {
                position: fixed;
                left: -100%;
                top: 70px;
                flex-direction: column;
                background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
                width: 100%;
                text-align: center;
                transition: 0.3s;
                box-shadow: 0 10px 27px rgba(0,0,0,0.3);
                padding: 2rem 0;
                gap: 0;
            }

            .nav-menu.active {
                left: 0;
            }

            .nav-item {
                margin: 1rem 0;
            }

            .nav-link {
                font-size: 1.1rem;
                padding: 1rem 2rem;
                border-radius: 0;
                display: block;
                width: 100%;
            }

            .nav-link:hover {
                background: rgba(255, 255, 255, 0.1);
                transform: none;
                padding-left: 3rem;
            }

            /* Home Section Mobile */
            .home {
                flex-direction: column;
                text-align: center;
                padding: 2rem 5%;
                gap: 2rem;
            }

            .home-info {
                padding-right: 0;
                order: 2;
            }

            .home-info h1 {
                font-size: 2.5rem;
            }

            .home-info h2 {
                font-size: 1.4rem;
            }

            .home-info p {
                font-size: 1rem;
                margin-bottom: 1.5rem;
            }

            .btn-sci {
                justify-content: center;
                flex-wrap: wrap;
                gap: 1.5rem;
            }

            .home-image {
                padding-left: 0;
                order: 1;
            }

            .img-box {
                width: 250px;
                height: 250px;
            }
        }

        /* Tablet Responsive */
        @media screen and (max-width: 1024px) and (min-width: 769px) {
            .nav-container {
                padding: 0 15px;
            }
            
            .nav-menu {
                gap: 1.5rem;
            }

            .home {
                padding: 0 3%;
            }

            .home-info h1 {
                font-size: 3rem;
            }

            .home-info h2 {
                font-size: 1.6rem;
            }

            .img-box {
                width: 300px;
                height: 300px;
            }
        }

        /* Small Mobile */
        @media screen and (max-width: 480px) {
            .home {
                padding: 1rem 3%;
                margin-top: 70px;
            }

            .home-info h1 {
                font-size: 2rem;
            }

            .home-info h2 {
                font-size: 1.2rem;
            }

            .home-info p {
                font-size: 0.9rem;
            }

            .img-box {
                width: 200px;
                height: 200px;
            }

            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }

            .sci a {
                width: 40px;
                height: 40px;
                font-size: 1.3rem;
                text-decoration: none;
            }

            .btn-sci {
                gap: 1rem;
            }
        }

        /* Very Small Screens */
        @media screen and (max-width: 360px) {
            .nav-container {
                padding: 0 10px;
            }

            .nav-logo {
                font-size: 1.5rem;
            }

            .home {
                padding: 1rem 2%;
            }

            .home-info h1 {
                font-size: 1.8rem;
            }

            .home-info p {
                font-size: 0.85rem;
            }

            .img-box {
                width: 180px;
                height: 180px;
            }
        }

        /* Landscape Mobile */
        @media screen and (max-height: 500px) and (orientation: landscape) {
            .home {
                min-height: auto;
                padding: 1rem 5%;
                margin-top: 70px;
            }

            .home-info h1 {
                font-size: 2rem;
                margin-bottom: 0.3rem;
            }

            .home-info h2 {
                font-size: 1.2rem;
                margin-bottom: 0.5rem;
            }

            .home-info p {
                font-size: 0.9rem;
                margin-bottom: 1rem;
            }

            .img-box {
                width: 200px;
                height: 200px;
            }
        }

        /* Background Effects */
        .home::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 20% 80%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
                        radial-gradient(circle at 80% 20%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
            pointer-events: none;
            z-index: -1;
        }

        /* Loading Animation */
        .img-item {
            position: relative;
            overflow: hidden;
        }

        .img-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s ease;
        }

        .img-item:hover::before {
            left: 100%;
        }