/* Your provided CSS goes here */
        :root {
            /* Define CSS variables for easier color management */
            --primary-red: #D32F2F; /* A lighter, more vibrant red */
            --primary-red-hover: #C62828; /* Slightly darker for hover states */
            --light-red: #FFCDD2; /* Very light red, suitable for backgrounds or subtle accents */
            --light-red-hover: #EF9A9A; /* Slightly darker light red for hover */
            --primary-red-rgb: 211, 47, 47; /* RGB for primary-red to use with rgba() */


            --white: #FFFFFF;
            --light-gray-bg: #F8F8F8;
            --dark-gray-text: #333333;
            --medium-gray-text: #666666;
            --light-border: #E0E0E0;
            --lighter-gray-track: #F0F0F0;
            --sale-badge-yellow: #FFC107;
            --star-gold: #FFD700;
        }

        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--light-gray-bg); /* Use variable */
            overflow-x: hidden;
        }

        /* Professional Red and White Palette */
        .bg-primary-red {
            background-color: var(--primary-red); /* Use variable */
        }

        .text-primary-red {
            color: var(--primary-red); /* Use variable */
        }

        .bg-secondary-white {
            background-color: var(--white); /* Use variable */
        }

        .text-secondary-white {
            color: var(--white); /* Use variable */
        }

        .text-dark-gray {
            color: var(--dark-gray-text); /* Use variable */
        }

        .text-medium-gray {
            color: var(--medium-gray-text); /* Use variable */
        }

        .border-light-gray {
            border-color: var(--light-border); /* Use variable */
        }

        /* --- Loading Overlay Styles --- */
        #loading-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: var(--primary-red); /* Use variable */
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            z-index: 1000;
            transition: opacity 0.8s ease-out, visibility 0.8s ease-out;
        }

        #loading-overlay.hidden {
            opacity: 0;
            visibility: hidden;
        }

        /* Loading Spinner */
        .spinner {
            border: 8px solid rgba(255, 255, 255, 0.3);
            border-top: 8px solid var(--white); /* Use variable */
            border-radius: 50%;
            width: 60px;
            height: 60px;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% {
                transform: rotate(0deg);
            }
            100% {
                transform: rotate(360deg);
            }
        }

        /* --- Enhanced Animations --- */
        .fade-in-up {
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInSlideUp 0.8s ease-out forwards;
            animation-delay: var(--delay, 0s);
        }

        @keyframes fadeInSlideUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .scale-in {
            opacity: 0;
            transform: scale(0.8);
            animation: scaleIn 0.6s ease-out forwards;
            animation-delay: var(--delay, 0s);
        }

        @keyframes scaleIn {
            from {
                opacity: 0;
                transform: scale(0.8);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        .card-entry-animation {
            opacity: 0;
            transform: translateY(50px);
            animation: cardFadeInUp 1s ease-out forwards;
            animation-delay: var(--delay, 0s);
        }

        @keyframes cardFadeInUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .pulse-animation {
            animation: pulse 2s infinite ease-in-out;
        }

        @keyframes pulse {
            0% {
                transform: scale(1);
                opacity: 1;
            }
            50% {
                transform: scale(1.05);
                opacity: 0.9;
            }
            100% {
                transform: scale(1);
                opacity: 1;
            }
        }

        .text-glow {
            text-shadow: 0 0 8px rgba(255, 255, 255, 0.8),
                0 0 15px rgba(255, 255, 255, 0.6),
                0 0 20px rgba(255, 255, 255, 0.4);
        }

        /* --- Classroom Background Image (subtle effect) --- */
        #classroom-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('https://www.transparenttextures.com/patterns/circuit-board.png');
            background-size: 200px 200px;
            background-position: center;
            opacity: 0.05;
            z-index: -2;
        }

        /* --- Custom scrollbar --- */
        body::-webkit-scrollbar {
            width: 10px;
        }

        body::-webkit-scrollbar-track {
            background: var(--lighter-gray-track); /* Use variable */
            border-radius: 10px;
        }

        body::-webkit-scrollbar-thumb {
            background-color: var(--primary-red); /* Use variable */
            border-radius: 10px;
            border: 2px solid var(--lighter-gray-track); /* Use variable */
        }

        body::-webkit-scrollbar-thumb:hover {
            background-color: var(--primary-red-hover); /* Use variable */
        }

        /* --- General Layout & Components --- */
        .hero-section {
            background-image: none;
            background-color: var(--primary-red); /* Use variable */
            height: 600px;
            display: flex;
            align-items: center;
            justify-content: flex-start;
            color: var(--white); /* Use variable */
            position: relative;
            z-index: 10;
            overflow: hidden;
        }

        /* New Canvas for Hero Background */
        #hero-physics-bg-canvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0, 0, 0, 0.2);
            z-index: 1;
        }

        .hero-content {
            z-index: 10;
            padding-left: 10%;
            max-width: 800px;
        }

        .feature-card {
            background-color: var(--white); /* Use variable */
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.06);
            text-align: center;
            transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(var(--primary-red-rgb), 0.05); /* Use RGB for transparency */
            transform: scale(0);
            border-radius: 12px;
            transition: transform 0.3s ease-in-out;
            z-index: 0;
        }

        .feature-card:hover::before {
            transform: scale(1);
        }

        .feature-card > * {
            position: relative;
            z-index: 1;
        }

        .feature-icon {
            width: 70px;
            height: 70px;
            margin: 0 auto 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: var(--light-red); /* Use variable */
            border-radius: 50%;
            transition: background-color 0.3s ease-in-out;
        }

        .feature-card:hover .feature-icon {
            background-color: var(--light-red-hover); /* Use variable */
        }

        .feature-icon svg {
            color: var(--primary-red); /* Use variable */
            width: 60%;
            height: 60%;
        }

        /* Topic Button Style */
        .topic-button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--white); /* Use variable */
            border: 2px solid var(--primary-red); /* Use variable */
            color: var(--dark-gray-text); /* Use variable */
            padding: 1rem 2.5rem;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease-in-out;
            margin: 0.75rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            min-width: 180px;
            text-align: center;
        }

        .topic-button:hover {
            background-color: var(--primary-red); /* Use variable */
            color: var(--white); /* Use variable */
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(var(--primary-red-rgb), 0.3); /* Use RGB for transparency */
            border-color: var(--primary-red-hover); /* Use variable */
        }

        .course-card {
            background-color: var(--white); /* Use variable */
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
            position: relative;
        }

        .course-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
        }

        .sale-off-badge {
            background-color: var(--sale-badge-yellow); /* Use variable */
            color: var(--dark-gray-text); /* Use variable */
            padding: 6px 12px;
            border-top-left-radius: 12px;
            border-bottom-right-radius: 12px;
            font-size: 0.8rem;
            font-weight: bold;
            position: absolute;
            top: 0;
            left: 0;
            z-index: 2;
        }

        .course-card img {
            border-top-left-radius: 12px;
            border-top-right-radius: 12px;
        }

        .course-card .price-old {
            color: #999999;
        }

        .course-card .price-new {
            color: var(--primary-red); /* Use variable */
            font-size: 1.5rem;
        }

        .course-card .monthly-payment {
            color: var(--medium-gray-text); /* Use variable */
            font-size: 0.85rem;
        }

        .course-card .star-rating {
            color: var(--star-gold); /* Use variable */
        }

        /* --- Navigation Bar Adjustments --- */
        nav {
            border-bottom: 1px solid var(--lighter-gray-track); /* Use variable */
        }

        nav .text-gray-800 {
            color: var(--dark-gray-text); /* Use variable */
        }

        nav .text-gray-600 {
            color: var(--medium-gray-text); /* Use variable */
        }

        nav a:hover {
            color: var(--primary-red); /* Use variable */
            transform: translateY(-2px);
        }

        nav button.border-primary-red {
            border-color: var(--primary-red); /* Use variable */
            color: var(--primary-red); /* Use variable */
        }

        nav button.border-primary-red:hover {
            background-color: var(--light-red); /* Use variable */
        }

        nav button.bg-primary-red {
            background-color: var(--primary-red); /* Use variable */
        }

        nav button.bg-primary-red:hover {
            background-color: var(--primary-red-hover); /* Use variable */
        }

        nav .fa-shopping-cart:hover {
            transform: scale(1.1);
            color: var(--primary-red); /* Use variable */
        }

        /* --- Section Headings --- */
        h2,
        h3 {
            color: var(--dark-gray-text); /* Use variable */
        }

        .underline-yellow {
            background-color: var(--sale-badge-yellow); /* Use variable */
        }

        .underline-blue {
            background-color: var(--primary-red); /* Use variable */
        }

        /* --- Statistics Section Styles --- */
        .stats-card {
            background-color: var(--white); /* Use variable */
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.06);
            text-align: center;
            transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
        }

        .stats-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
        }

        .stats-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: var(--light-red); /* Use variable */
            border-radius: 50%;
        }

        .stats-icon svg {
            color: var(--primary-red); /* Use variable */
            width: 50%;
            height: 50%;
        }

        .stats-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-red); /* Use variable */
            line-height: 1;
            display: inline-block;
            min-width: 50px;
        }

        .stats-label {
            font-size: 1rem;
            color: var(--medium-gray-text); /* Use variable */
            margin-top: 0.5rem;
        }

        /* --- Testimonial Section Styles --- */
        .testimonial-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            padding: 2rem;
            background-color: #FDFDFD;
            background-image: url('https://www.transparenttextures.com/patterns/clean-gray-paper.png');
            background-size: 100px 100px;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }

        .testimonial-card {
            background-color: var(--white); /* Use variable */
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            position: relative;
            overflow: hidden;
            transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .testimonial-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }

        .testimonial-quote {
            font-size: 1.1rem;
            color: var(--dark-gray-text); /* Use variable */
            line-height: 1.6;
            margin-bottom: 1.5rem;
            font-style: italic;
            position: relative;
            padding-left: 20px;
        }

        .testimonial-quote::before {
            content: "\201C";
            font-family: serif;
            font-size: 4em;
            color: var(--primary-red); /* Use variable */
            position: absolute;
            left: -10px;
            top: -20px;
            opacity: 0.2;
            z-index: 0;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            margin-top: 1.5rem;
        }

        .author-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            object-fit: cover;
            margin-right: 1rem;
            border: 3px solid var(--primary-red); /* Use variable */
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .author-name {
            font-weight: 700;
            color: var(--dark-gray-text); /* Use variable */
        }

        .author-title {
            font-size: 0.95rem;
            color: var(--medium-gray-text); /* Use variable */
        }

        /* --- FAQ Section Styles --- */
        .faq-item {
            background-color: var(--white); /* Use variable */
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: all 0.3s ease-in-out;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem 2rem;
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--dark-gray-text); /* Use variable */
            cursor: pointer;
            background-color: var(--white); /* Use variable */
            border-bottom: 1px solid var(--lighter-gray-track); /* Use variable */
            transition: background-color 0.3s ease-in-out;
        }

        .faq-question:hover {
            background-color: var(--light-red); /* Use variable */
        }

        .faq-question.active {
            background-color: var(--primary-red); /* Use variable */
            color: var(--white); /* Use variable */
            border-bottom-color: var(--primary-red); /* Use variable */
        }

        .faq-question .icon {
            transition: transform 0.3s ease-in-out;
        }

        .faq-question.active .icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 2rem;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease-in-out, padding 0.5s ease-in-out;
            color: var(--medium-gray-text); /* Use variable */
            line-height: 1.6;
        }

        .faq-answer.open {
            max-height: 200px; /* Adjust as needed based on content */
            padding: 1.5rem 2rem;
        }

        /* FAQ Illustration */
        .faq-illustration {
            width: 100%;
            max-width: 400px;
            margin: 0 auto;
        }

        /* --- Mobile Navigation Specific Styles --- */
        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            z-index: 999;
            display: none;
            opacity: 0;
            transition: opacity 0.3s ease-in-out;
        }

        .mobile-menu {
            position: fixed;
            top: 0;
            right: -300px;
            width: 300px;
            height: 100%;
            background-color: var(--white); /* Use variable */
            box-shadow: -6px 0 20px rgba(0, 0, 0, 0.3);
            z-index: 1000;
            transition: right 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .mobile-menu.open {
            right: 0;
        }

        .mobile-menu-close {
            align-self: flex-end;
            font-size: 2rem;
            color: var(--dark-gray-text); /* Use variable */
            cursor: pointer;
            margin-bottom: 1.5rem;
            transition: color 0.2s ease-in-out, transform 0.2s ease-in-out;
        }

        .mobile-menu-close:hover {
            color: var(--primary-red); /* Use variable */
            transform: rotate(90deg);
        }

        .mobile-nav-link,
        .mobile-nav-button {
            display: block;
            width: 100%;
            padding: 0.8rem 1rem;
            text-align: left;
            font-size: 1.1rem;
            color: var(--dark-gray-text); /* Use variable */
            text-decoration: none;
            transition: background-color 0.2s, color 0.2s, transform 0.2s;
            border-radius: 8px;
            margin-bottom: 0.5rem;
        }

        .mobile-nav-link:hover,
        .mobile-nav-button:hover {
            background-color: var(--light-red); /* Use variable */
            color: var(--primary-red); /* Use variable */
            transform: translateX(5px);
        }

        .mobile-nav-button.login {
            border: 1px solid var(--primary-red); /* Use variable */
            color: var(--primary-red); /* Use variable */
            background-color: transparent;
            margin-top: 1rem;
            text-align: center;
        }

        .mobile-nav-button.login:hover {
            background-color: var(--light-red); /* Use variable */
        }

        .mobile-nav-button.signup {
            background-color: var(--primary-red); /* Use variable */
            color: var(--white); /* Use variable */
            margin-top: 0.5rem;
            text-align: center;
        }

        .mobile-nav-button.signup:hover {
            background-color: var(--primary-red-hover); /* Use variable */
        }

        /* --- Affiliations Carousel Styles (Updated) --- */
        .affiliations-carousel-container {
            overflow: hidden;
            width: 100%;
            position: relative;
            padding: 3rem 0;
            background-color: #FDFDFD;
            background-image: url('https://www.transparenttextures.com/patterns/circuit-board.png');
            background-size: 200px 200px;
            opacity: 0.85;
            box-shadow: inset 0 5px 15px rgba(0, 0, 0, 0.05), inset 0 -5px 15px rgba(0, 0, 0, 0.05);
        }

        .affiliations-carousel {
            display: flex;
            animation: scroll-left 40s linear infinite;
            white-space: nowrap;
            will-change: transform;
        }

        .affiliations-carousel-item {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 250px;
            height: 120px;
            margin: 0 2.5rem;
            opacity: 0.7;
            transition: opacity 0.3s ease-in-out, filter 0.3s ease-in-out, border-color 0.3s ease-in-out, transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
            border: 3px solid transparent;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            background-color: var(--white); /* Use variable */
        }

        .affiliations-carousel-item:hover {
            opacity: 1;
            border-color: var(--primary-red); /* Use variable */
            transform: translateY(-5px) scale(1.02);
            box-shadow: 0 8px 20px rgba(var(--primary-red-rgb), 0.3); /* Use RGB for transparency */
        }

        .affiliations-carousel-item img {
            max-width: 80%;
            max-height: 80%;
            filter: grayscale(80%);
            transition: filter 0.3s ease-in-out;
        }

        .affiliations-carousel-item:hover img {
            filter: grayscale(0%);
        }

        @keyframes scroll-left {
            0% {
                transform: translateX(0%);
            }
            100% {
                transform: translateX(-100%);
            }
        }

        /* To duplicate items for seamless loop */
        .affiliations-carousel.duplicated {
            animation: scroll-left 40s linear infinite;
        }

        /* Pause animation on hover */
        .affiliations-carousel-container:hover .affiliations-carousel {
            animation-play-state: paused;
        }

        /* Responsive adjustments for carousel */
        @media (max-width: 768px) {
            .affiliations-carousel-item {
                width: 180px;
                height: 100px;
                margin: 0 1.5rem;
            }
            .affiliations-carousel {
                animation-duration: 25s;
            }
        }

        /* --- Course Section Styles (New Design) --- */
        .course-tabs {
            display: flex;
            justify-content: center;
            margin-bottom: 3rem;
            background-color: var(--lighter-gray-track); /* Use variable */
            border-radius: 10px;
            padding: 0.5rem;
            box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.05);
        }

        .course-tab-button {
            padding: 0.8rem 2rem;
            font-weight: 600;
            color: var(--medium-gray-text); /* Use variable */
            background-color: transparent;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease-in-out;
            flex-grow: 1;
            text-align: center;
        }

        .course-tab-button.active {
            background-color: var(--primary-red); /* Use variable */
            color: var(--white); /* Use variable */
            box-shadow: 0 3px 10px rgba(var(--primary-red-rgb), 0.2); /* Use RGB for transparency */
        }

        .course-tab-button:hover:not(.active) {
            color: var(--primary-red); /* Use variable */
            background-color: var(--light-red); /* Use variable */
        }

        .course-content-wrapper {
            position: relative;
            overflow: hidden;
            padding-bottom: 2rem;
        }

        .course-grid {
            display: flex;
            transition: transform 0.5s ease-in-out;
            gap: 2rem;
        }

        .course-card-new {
            flex: 0 0 33.33%;
            max-width: 33.33%;
            background-color: var(--white); /* Use variable */
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 12px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out, opacity 0.5s ease-in-out;
            position: relative;
            display: flex;
            flex-direction: column;
            opacity: 0;
            transform: translateY(20px);
        }

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

        @media (max-width: 1024px) {
            .course-card-new {
                flex: 0 0 50%;
                max-width: 50%;
            }
        }

        @media (max-width: 768px) {
            .course-card-new {
                flex: 0 0 100%;
                max-width: 100%;
            }
        }

        .course-card-new:hover {
            transform: translateY(-8px);
            box-shadow: 0 8px 18px rgba(0, 0, 0, 0.1);
        }

        .course-card-new img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-top-left-radius: 12px;
            border-top-right-radius: 12px;
        }

        .course-card-new-content {
            padding: 1.5rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .course-card-new-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--dark-gray-text); /* Use variable */
            margin-bottom: 0.5rem;
        }

        .course-card-new-description {
            font-size: 0.95rem;
            color: var(--medium-gray-text); /* Use variable */
            margin-bottom: 1rem;
        }

        .course-card-new-price {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary-red); /* Use variable */
            margin-top: auto;
        }

        .course-card-new-button {
            background-color: var(--primary-red); /* Use variable */
            color: var(--white); /* Use variable */
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            font-weight: 600;
            text-align: center;
            transition: background-color 0.3s ease-in-out;
            margin-top: 1rem;
            display: block;
        }

        .course-card-new-button:hover {
            background-color: var(--primary-red-hover); /* Use variable */
        }

        .carousel-navigation {
            display: flex;
            justify-content: center;
            margin-top: 2rem;
            gap: 1rem;
        }

        .carousel-button {
            background-color: var(--primary-red); /* Use variable */
            color: var(--white); /* Use variable */
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            transition: background-color 0.3s ease-in-out, transform 0.2s ease-in-out;
            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
        }

        .carousel-button:hover {
            background-color: var(--primary-red-hover); /* Use variable */
            transform: scale(1.05);
        }

        .carousel-button:disabled {
            background-color: #cccccc;
            cursor: not-allowed;
            box-shadow: none;
        }

        /* Specific styles for the signup form */
        .signup-container {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2rem;
            background-color: var(--light-gray-bg);
            position: relative;
            z-index: 1;
        }

        .signup-card {
            background-color: var(--white);
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            padding: 3rem 2rem;
            max-width: 500px;
            width: 100%;
            text-align: center;
            animation: fadeInSlideUp 0.8s ease-out forwards;
            position: relative;
            z-index: 2;
        }

        .signup-card h2 {
            font-size: 2.25rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: var(--dark-gray-text);
        }

        .signup-card p {
            color: var(--medium-gray-text);
            margin-bottom: 2rem;
            font-size: 1rem;
        }

        .signup-form .input-group {
            margin-bottom: 1.25rem;
            text-align: left;
        }

        .signup-form label {
            display: block;
            font-weight: 600;
            color: var(--dark-gray-text);
            margin-bottom: 0.5rem;
            font-size: 0.95rem;
        }

        .signup-form input[type="text"],
        .signup-form input[type="email"],
        .signup-form input[type="password"] {
            width: 100%;
            padding: 1rem 1.25rem;
            border: 1px solid var(--light-border);
            border-radius: 8px;
            font-size: 1rem;
            color: var(--dark-gray-text);
            background-color: var(--light-gray-bg);
            transition: border-color 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
        }

        .signup-form input[type="text"]:focus,
        .signup-form input[type="email"]:focus,
        .signup-form input[type="password"]:focus {
            border-color: var(--primary-red);
            outline: none;
            box-shadow: 0 0 0 3px rgba(var(--primary-red-rgb), 0.2);
        }

        .signup-form button[type="submit"] {
            width: 100%;
            padding: 1rem 1.5rem;
            background-color: var(--primary-red);
            color: var(--white);
            font-weight: 700;
            border-radius: 8px;
            transition: background-color 0.3s ease-in-out, transform 0.2s ease-in-out;
            cursor: pointer;
            margin-top: 1.5rem;
            font-size: 1.1rem;
        }

        .signup-form button[type="submit"]:hover {
            background-color: var(--primary-red-hover);
            transform: translateY(-2px);
        }

        .signup-card .login-link {
            margin-top: 2rem;
            font-size: 0.95rem;
            color: var(--medium-gray-text);
        }

        .signup-card .login-link a {
            color: var(--primary-red);
            font-weight: 600;
            text-decoration: none;
            transition: color 0.2s ease-in-out;
        }

        .signup-card .login-link a:hover {
            color: var(--primary-red-hover);
            text-decoration: underline;
        }

        /* Adjustments for existing elements on signup page */
        .top-announcement-bar {
            position: absolute;
            width: 100%;
            top: 0;
            left: 0;
            z-index: 10; /* Ensure it's above the signup form if needed */
        }