:root {
            --primary-color: rgb(61, 209, 235); 
            --header-color: #03006B; 
            --secondary-color: #0d0d0d; 
            --accent-color: #ffffff; 
            --gradient: linear-gradient(135deg, rgb(61, 209, 235) 0%, rgb(67, 102, 230) 100%);
            --shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
            --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.6);
            --radius: 15px;
            --transition: all 0.4s ease;
        }

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

        body {
            font-family: 'Exo 2', sans-serif;
            color: var(--accent-color);
            line-height: 1.6;
            background-color: var(--secondary-color);
            overflow-x: hidden;
            position: relative;
        }

        /* Particle Background */
        #particles {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
        }

        /* Header */
        header {
            background: var(--header-color);
            box-shadow: var(--shadow);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

        .header-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo-container {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .logo-img {
            width: 50px;
            height: 50px;
            filter: drop-shadow(0 0 10px rgba(61, 209, 235, 0.7));
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent-color);
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 0 10px rgba(67, 102, 230, 0.8);
        }

        nav {
            display: flex;
            align-items: center;
        }

        .mobile-menu-btn {
            display: block;
            font-size: 1.8rem;
            color: var(--accent-color);
            cursor: pointer;
            z-index: 1001;
        }

        nav ul {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: var(--header-color);
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 2rem;
            transform: translateX(100%);
            transition: var(--transition);
            z-index: 1000;
            margin: 0;
            padding: 0;
        }

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

        nav ul li {
            list-style: none;
        }

        nav ul li a {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.2rem;
            padding: 0.5rem 1rem;
            transition: var(--transition);
            border-radius: var(--radius);
        }

        nav ul li a:hover {
            background: rgba(61, 209, 235, 0.3);
            box-shadow: 0 0 10px rgba(61, 209, 235, 0.6);
        }

        /* Floating Title */
        .floating-title {
            text-align: center;
            margin: 100px 0 6rem;
            position: relative;
        }

        .floating-title h2 {
            font-size: 3rem;
            font-weight: 700;
            color: var(--accent-color);
            text-shadow: 0 0 20px rgba(61, 209, 235, 0.8), 0 0 30px rgba(67, 102, 230, 0.5);
            animation: floatTitle 3s ease-in-out infinite;
        }

        @keyframes floatTitle {
            0%, 100% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-15px) rotate(2deg); }
        }

        /* Timeline Carousel */
        .timeline-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 2rem;
            height: 500px;
            display: flex;
            justify-content: center;
            align-items: center;
            perspective: 1000px;
            position: relative;
        }

        .carousel {
            position: relative;
            width: 300px;
            height: 400px;
            transform-style: preserve-3d;
            transition: transform 2s ease;
        }

        .carousel-node {
            position: absolute;
            width: 300px;
            height: 400px;
            background: rgba(26, 26, 26, 0.9);
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
            cursor: pointer;
        }

        .carousel-node:hover {
            transform: scale(1.1) translateZ(400px);
            box-shadow: 0 0 30px rgba(61, 209, 235, 0.8);
        }

        .node-image {
            width: 100%;
            height: 180px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-radius: var(--radius) var(--radius) 0 0;
        }

        .node-content {
            padding: 1rem;
            text-align: center;
            color: var(--accent-color);
            flex-grow: 1;
        }

        .node-content p {
            font-size: 1rem;
        }

        .node-glow {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border-radius: var(--radius);
            box-shadow: 0 0 20px rgba(61, 209, 235, 0.5);
            pointer-events: none;
            animation: glowPulse 2s infinite;
        }

        @keyframes glowPulse {
            0%, 100% { box-shadow: 0 0 20px rgba(61, 209, 235, 0.5); }
            50% { box-shadow: 0 0 40px rgba(61, 209, 235, 0.8); }
        }

        /* Achievements Cards */
        .achievements-container {
            max-width: 1400px;
            margin: 6rem auto 4rem; /* Increased margin-top for separation */
            padding: 2rem;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            position: relative;
        }

        .achievement {
            position: relative;
            background: rgba(26, 26, 26, 0.9);
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow-lg);
            transition: var(--transition);
            overflow: hidden;
            min-height: 250px;
            border: 2px solid transparent;
        }

        .achievement:hover {
            transform: translateY(-10px);
            border-color: var(--primary-color);
            box-shadow: 0 0 30px rgba(61, 209, 235, 0.8);
        }

        .achievement-border {
            position: absolute;
            top: -2px;
            left: -2px;
            width: calc(100% + 4px);
            height: calc(100% + 4px);
            border-radius: var(--radius);
            background: var(--gradient);
            z-index: -1;
            animation: borderGlow 3s linear infinite;
        }

        @keyframes borderGlow {
            0% { opacity: 0.3; }
            50% { opacity: 0.8; }
            100% { opacity: 0.3; }
        }

        .achievement-year {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent-color);
            text-shadow: 0 0 20px rgba(61, 209, 235, 0.8), 0 0 30px rgba(67, 102, 230, 0.5);
            margin-bottom: 1rem;
            text-align: center;
            animation: floatTitle 3s ease-in-out infinite;
        }

        .achievement-content {
            text-align: left;
            color: var(--accent-color);
            max-height: 150px;
            overflow: hidden;
            transition: max-height 0.5s ease;
        }

        .achievement:hover .achievement-content {
            max-height: 500px;
        }

        .achievement-content p {
            background: rgba(40, 40, 40, 0.7);
            padding: 0.5rem;
            border-radius: 8px;
            margin: 0.5rem 0;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .achievement-content p:hover {
            background: rgba(61, 209, 235, 0.3);
            transform: translateX(5px);
        }

        .achievement::before {
            content: '';
            position: absolute;
            width: 15px;
            height: 15px;
            background: rgba(61, 209, 235, 0.7);
            border-radius: 50%;
            top: 5%;
            left: 5%;
            animation: orbitParticle 3s linear infinite;
        }

        .achievement::after {
            content: '';
            position: absolute;
            width: 10px;
            height: 10px;
            background: rgba(67, 102, 230, 0.7);
            border-radius: 50%;
            bottom: 5%;
            right: 5%;
            animation: orbitParticle 4s linear infinite reverse;
        }

        @keyframes orbitParticle {
            0% { transform: rotate(0deg) translateX(20px) rotate(0deg); }
            100% { transform: rotate(360deg) translateX(20px) rotate(-360deg); }
        }

        /* Footer */
        footer {
            background: var(--header-color);
            color: var(--accent-color);
            padding: 2rem;
            text-align: center;
            border-top: 3px solid rgba(61, 209, 235, 0.4);
        }

        .footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 1.5rem;
        }

        .footer-links a {
            color: var(--accent-color);
            text-decoration: none;
            margin: 0 0.8rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--primary-color);
            text-shadow: 0 0 8px rgba(61, 209, 235, 0.7);
        }

        .footer-social i {
            font-size: 1.5rem;
            margin: 0 0.6rem;
            color: var(--accent-color);
            transition: var(--transition);
        }

        .footer-social i:hover {
            color: var(--primary-color);
            transform: scale(1.3);
        }

        /* Responsive Design */
        @media (max-width: 1200px) {
            .header-container {
                padding: 1rem;
            }

            .logo {
                font-size: 1.6rem;
            }

            .logo-img {
                width: 45px;
                height: 45px;
            }
        }

        @media (max-width: 768px) {
            .header-container {
                padding: 0.8rem;
            }

            .logo {
                font-size: 1.4rem;
            }

            .logo-img {
                width: 40px;
                height: 40px;
            }

            .mobile-menu-btn {
                font-size: 1.6rem;
            }

            nav ul li a {
                font-size: 1rem;
            }

            .floating-title {
                margin: 80px 0 4rem;
            }

            .floating-title h2 {
                font-size: 2rem;
            }

            .timeline-container {
                height: 400px;
                padding: 1rem;
            }

            .carousel {
                width: 250px;
                height: 350px;
            }

            .carousel-node {
                width: 250px;
                height: 350px;
                transform: rotateY(0deg) translateZ(250px);
            }

            .carousel-node:hover {
                transform: scale(1.05) rotateY(0deg) translateZ(270px);
            }

            .node-image {
                height: 150px;
            }

            .node-content p {
                font-size: 0.9rem;
            }

            .achievements-container {
                margin: 4rem auto 3rem; /* Adjusted for smaller screens */
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .achievement {
                width: 100%;
                max-width: 350px;
                margin: 0 auto;
            }

            .achievement-year {
                font-size: 1.5rem;
            }

            .achievement-content p {
                font-size: 0.8rem;
                padding: 0.4rem;
            }
        }

        @media (max-width: 480px) {
            .header-container {
                padding: 0.6rem;
            }

            .logo {
                font-size: 1.2rem;
            }

            .logo-img {
                width: 35px;
                height: 35px;
            }

            .mobile-menu-btn {
                font-size: 1.4rem;
            }

            nav ul {
                gap: 1.5rem;
            }

            nav ul li a {
                font-size: 0.9rem;
                padding: 0.4rem 0.8rem;
            }

            .floating-title h2 {
                font-size: 1.5rem;
            }

            .timeline-container {
                height: 350px;
            }

            .carousel {
                width: 200px;
                height: 300px;
            }

            .carousel-node {
                width: 200px;
                height: 300px;
                transform: rotateY(0deg) translateZ(200px);
            }

            .carousel-node:hover {
                transform: scale(1.05) rotateY(0deg) translateZ(220px);
            }

            .node-image {
                height: 120px;
            }

            .node-content p {
                font-size: 0.8rem;
            }

            .achievements-container {
                margin: 3rem auto 2rem; /* Further adjusted for small screens */
            }

            .achievement-year {
                font-size: 1.2rem;
            }

            .achievement-content p {
                font-size: 0.7rem;
            }

            .footer-links a {
                font-size: 0.8rem;
                margin: 0 0.5rem;
            }

            .footer-social i {
                font-size: 1.2rem;
                margin: 0 0.4rem;
            }
        }