:root {
            --primary: #0F3D3E;
            --secondary: rgb(12, 117, 96);
            --light: #f4f6f9;
            --text: #2d2d2d;
            --white: #ffffff;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Poppins', sans-serif;
        }

        body {
            background: var(--light);
            color: var(--text);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* TOP HEADER */
        .top-header {
            background: black;
            color: var(--white);
            padding: 10px 0;
            font-size: 0.9rem;
        }

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

        .contact-info {
            display: flex;
            gap: 25px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .contact-item i {
            color: #b5e1e1ff;
        }

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

        .social-links a {
            color: var(--white);
            transition: color 0.3s ease;
        }

        .social-links a:hover {
            color: #b5e1e1ff;
        }

        /* MAIN HEADER */
        .main-header {
            background: var(--white);
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

        .logo-icon {
            color: var(--primary);
            font-size: 1.8rem;
        }


        .nav-links {
            display: flex;
            gap: 35px;
            list-style: none;
        }

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

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

        .nav-links a:hover::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--secondary);
        }

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

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

        .cta-button {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            padding: 10px 15px;
            font-size: 1.0rem;
            font-weight: 600;
            border-radius: 10px;
            text-decoration: none;
            box-shadow: 0 8px 20px rgba(0,0,0,0.2);
            transition: all 0.3s ease;
        }

        .cta-button:hover {
            background: var(--secondary);
            color: var(--white);
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 12px 25px rgba(0,0,0,0.3);
        }

        .mobile-menu-btn {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--primary);
            cursor: pointer;
        }

        /* MAIN CONTENT */
        .main-content {
            flex: 1;
        }

        /* FOOTER */
        .footer {
            background: linear-gradient(180deg, #010811ff, #00050aff);
            color: #e0e0e0;
            margin-top: 10px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* FOOTER CONTENT */
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 60px 20px 40px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 50px;
        }

        /* FOOTER SECTIONS */
        .footer-section img {
            margin-bottom: 15px;
        }

        .footer-section p {
            font-size: 0.95rem;
            line-height: 1.7;
            color: #b0b0b0;
        }

        /* HEADINGS */
        .footer-section h3 {
            font-size: 1.35rem;
            margin-bottom: 22px;
            color: #b5e1e1ff;
            position: relative;
        }

        /* HEADING UNDERLINE */
        .footer-section h3::after {
            content: "";
            width: 40px;
            height: 2px;
            background: #1fa2a6;
            display: block;
            margin-top: 8px;
            border-radius: 2px;
        }

        /* LINKS */
        .footer-links {
            list-style: none;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-links a {
            color: #cccccc;
            text-decoration: none;
            font-size: 0.95rem;
            transition: all 0.3s ease;
        }

        /* LINK HOVER */
        .footer-links a:hover {
            color: #ffffff;
            transform: translateX(4px);
        }

        /* ICONS */
        .footer-links i {
            color: #1fa2a6;
            min-width: 18px;
            font-size: 0.9rem;
        }

        /* CONTACT TEXT */
        .footer-links li {
            color: #b0b0b0;
            font-size: 0.95rem;
        }

        /* COPYRIGHT */
        .copyright {
            text-align: center;
            padding: 22px 20px;
            background: #00050aff;
            color: #8a8a8a;
            font-size: 0.85rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* RESPONSIVE */
        @media (max-width: 768px) {
            .footer-content {
                text-align: center;
            }

            .footer-links li {
                justify-content: center;
            }

            .footer-section h3::after {
                margin-left: auto;
                margin-right: auto;
            }
        }


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

        /* RESPONSIVE */
        @media (max-width: 768px) {
            .top-header-container {
                flex-direction: column;
                gap: 10px;
                text-align: center;
            }

            .contact-info {
                flex-wrap: wrap;
                justify-content: center;
            }

            .contact-item {
                font-size: 0.85rem;
                display: flex;
                align-items: center;
                gap: 1px;
            }

            .mobile-menu-btn {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--white);
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            }

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

            .cta-button {
                display: none;
            }
        }



/* index page */

  /* HERO SECTION */
    .hero {
        position: relative;
        min-height: 85vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 40px 20px;
        overflow: hidden;
    }

    /* DARK OVERLAY */
    .hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(
            120deg,
            rgba(8, 44, 45, 0.85),
            rgba(20, 79, 80, 0.85)
        );
        z-index: 1;
    }

    /* CONTENT ABOVE OVERLAY */
    .hero-container {
        position: relative;
        z-index: 2;
        max-width: 1200px;
        width: 100%;
        display: grid;
        grid-template-columns: 1.2fr 1fr;
        gap: 50px;
        align-items: center;
        animation: fadeUp 1s ease-in-out;
    }

    /* LEFT CONTENT */
    .hero-content h1 {
        font-size: 3.2rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 20px;
    }

    .hero-content h1 span {
        color: #b5e1e1ff;
    }

    .hero-content p {
        font-size: 1.1rem;
        color: #dbe6ff;
        line-height: 1.8;
        margin-bottom: 35px;
        max-width: 550px;
    }

    .hero-actions {
        display: flex;
        gap: 15px;
    }

    .btn-primary {
        background: #fff;
        color: var(--primary);
        padding: 14px 32px;
        border-radius: 6px;
        font-weight: 600;
        text-decoration: none;
        transition: all 0.3s ease;
    }

    .btn-primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 10px 25px rgba(0,0,0,0.25);
    }

    /* RIGHT CARD */
    .hero-card {
        background: #fff;
        border-radius: 14px;
        padding: 40px;
        box-shadow: 0 25px 60px rgba(0,0,0,0.25);
        animation: fadeUp 1.2s ease-in-out;
    }

    .hero-card h3 {
        font-size: 1.6rem;
        color: var(--primary);
        margin-bottom: 25px;
    }

   .feature {
        display: flex;
        align-items: flex-start;
        gap: 15px;
        margin-bottom: 18px;
    }

    .feature i {
        color: var(--secondary);
        font-size: 1.2rem;
        width: 24px;
        text-align: center;
        margin-top: 4px;
        flex-shrink: 0;
    }

    .feature span {
        font-size: 0.95rem;
        color: #555;
        line-height: 1.6;
    }

    .register-btn {
        margin-top: 30px;
        display: block;
        width: 100%;
        text-align: center;
        background: var(--primary);
        color: #fff;
        padding: 14px;
        border-radius: 6px;
        font-weight: 600;
        text-decoration: none;
        transition: all 0.3s ease;
    }

    .register-btn:hover {
        background: var(--secondary);
        transform: translateY(-2px);
    }

       /* FEATURES SLIDER SECTION */
    .features-section {
        padding: 80px 20px;
        background: var(--white);
        position: relative;
        overflow: hidden;
    }

    .section-title {
        text-align: center;
        margin-bottom: 50px;
    }

    .section-title h2 {
        font-size: 2.5rem;
        color: var(--primary);
        margin-bottom: 15px;
    }

    .section-title p {
        color: #666;
        max-width: 600px;
        margin: 0 auto;
    }

    /* Slider Container */
    .features-slider-container {
        max-width: 1200px;
        margin: 0 auto;
        position: relative;
        padding: 0 60px;
    }


    .features-slider {
        display: flex;
        gap: 30px;
        overflow-x: hidden; /* hide scroll bar */
        scroll-behavior: smooth;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 10px; /* space for shadow if needed */
    }

    .feature-card {
        flex: 0 0 calc((100% / 3) - 20px); /* 3 cards visible */
        background: var(--light);
        padding: 30px;
        border-radius: 12px;
        transition: all 0.3s ease;
        box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        scroll-snap-align: start;
        box-sizing: border-box; /* include padding/border in width */
    }

    /* Hide default scrollbar */
    .features-slider::-webkit-scrollbar {
        display: none;
    }
    .features-slider {
        -ms-overflow-style: none; /* IE/Edge */
        scrollbar-width: none; /* Firefox */
    }

    /* Responsive: 2 cards on tablet, 1 card on mobile */
    @media (max-width: 1024px) {
        .feature-card {
            flex: 0 0 calc((100% / 2) - 15px);
        }
    }

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

        .hero-card h3{
            font-size: 1.2rem;
        }

        .feature {
            text-align: left;
            font-size: 1.0rem;
        }
    }


    .feature-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(15, 61, 62, 0.1);
    }

    .feature-card i {
        font-size: 2.5rem;
        color: var(--secondary);
        margin-bottom: 20px;
        display: inline-block;
    }

    .feature-card h4 {
        font-size: 1.3rem;
        margin-bottom: 15px;
        color: var(--primary);
        min-height: 60px;
    }

    .feature-card p {
        color: #666;
        line-height: 1.6;
        font-size: 0.95rem;
    }

    /* Navigation Arrows */
    .slider-arrow {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 50px;
        height: 50px;
        background: var(--white);
        border: 2px solid var(--primary);
        color: var(--primary);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        z-index: 10;
        transition: all 0.3s ease;
        box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    }

    .slider-arrow:hover {
        background: var(--primary);
        color: var(--white);
        transform: translateY(-50%) scale(1.1);
    }

    .slider-arrow.prev {
        left: 0;
    }

    .slider-arrow.next {
        right: 0;
    }

    .slider-arrow i {
        font-size: 1.2rem;
    }


    /* Responsive Design */
    @media (max-width: 1024px) {
        .feature-card {
            flex: 0 0 calc(50% - 15px); /* 2 cards visible at once */
            min-width: calc(50% - 15px);
        }
    }

    @media (max-width: 768px) {
        .features-slider-container {
            padding: 0 50px;
        }

        .feature-card {
            flex: 0 0 100%; /* 1 card visible at once */
            min-width: 100%;
        }

        .feature-card h4 {
            min-height: auto;
            font-size: 18px;
        }

        .slider-arrow {
            width: 40px;
            height: 40px;
        }
    }

    @media (max-width: 480px) {
        .features-slider-container {
            padding: 0 40px;
        }

        .slider-arrow {
            width: 35px;
            height: 35px;
        }
    }

    /* Animation for active card */
    .feature-card.active {
        border: 2px solid var(--secondary);
        background: linear-gradient(135deg, var(--light), #ffffff);
    }

    
    /* CTA SECTION */
    .cta-section {
        padding: 30px 20px;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        text-align: center;
        color: var(--white);
        position: relative;
        overflow: hidden;
    }

    /* Optional subtle overlay animation */
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: rgba(0,0,0,0.2);
        z-index: 0;
    }

    /* CTA CONTENT */
    .cta-content {
        position: relative;
        z-index: 1;
        max-width: 900px;
        margin: 0 auto;
        animation: fadeUp 1s ease-in-out;
    }

    .cta-content h2 {
        font-size: 2.2rem;
        margin-bottom: 20px;
        font-weight: 700;
        line-height: 1.2;
    }

    .cta-content p {
        font-size: 1.2rem;
        margin-bottom: 35px;
        opacity: 0.9;
        line-height: 1.6;
    }

    /* CTA BUTTON */
    .cta-content .btn-primary {
        display: inline-block;
        background: var(--white);
        color: var(--primary);
        padding: 15px 40px;
        font-size: 1.1rem;
        font-weight: 600;
        border-radius: 50px;
        text-decoration: none;
        box-shadow: 0 8px 20px rgba(0,0,0,0.2);
        transition: all 0.3s ease;
    }

    .cta-content .btn-primary:hover {
        background: var(--secondary);
        color: var(--white);
        transform: translateY(-3px) scale(1.05);
        box-shadow: 0 12px 25px rgba(0,0,0,0.3);
    }

    /* Optional floating shape decorations (like bubbles or abstract shapes) */
    .cta-section::after {
        content: '';
        position: absolute;
        width: 200px;
        height: 200px;
        background: rgba(255,255,255,0.05);
        border-radius: 50%;
        top: -50px;
        left: -50px;
        z-index: 0;
        animation: float 6s ease-in-out infinite;
    }

    /* Animations */
    @keyframes fadeUp {
        0% { opacity: 0; transform: translateY(30px); }
        100% { opacity: 1; transform: translateY(0); }
    }

    @keyframes float {
        0%, 100% { transform: translateY(0px) rotate(0deg); }
        50% { transform: translateY(20px) rotate(45deg); }
    }

    /* Responsive */
    @media (max-width: 768px) {
        .cta-content h2 {
            font-size: 1.5rem;
        }
        
        .cta-content p {
            font-size: 1rem;
        }
        
        .cta-content .btn-primary {
            padding: 12px 30px;
            font-size: 1rem;
        }

         .hero-content h1 {
            font-size: 25px;
        }

         .hero-content p {
           font-size: 15px;
        }
    }

    @media (max-width: 900px) {
        .hero-container {
            grid-template-columns: 1fr;
            text-align: center;
        }

        .hero-content p {
            margin: auto;
        }

        .hero-actions {
            justify-content: center;
        }
    }

  /* CONTACT PAGE STYLES */
    .contact-hero {
        background: linear-gradient(185deg, var(--primary), var(--secondary));
        color: var(--white);
        text-align: center;
        padding: 80px 20px;
    }

    .contact-hero h1 {
        font-size: 3rem;
        margin-bottom: 20px;
    }

    .contact-hero p {
        font-size: 1.2rem;
        opacity: 0.9;
        max-width: 700px;
        margin: 0 auto 30px;
    }

    /* CONTACT SECTIONS */
    .contact-sections {
        max-width: 1200px;
        margin: 0 auto;
        padding: 80px 20px;
    }

    .section-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 50px;
    }

    /* CONTACT INFO */
    .info {
        background: white;
        padding: 40px;
        border-radius: 12px;
        box-shadow: 0 5px 20px rgba(0,0,0,0.05);
        animation: fadeUp 1.2s ease-in-out;
    }

    .info h2 {
        color: var(--primary);
        margin-bottom: 30px;
        font-size: 1.8rem;
    }

    .info-item {
        display: flex;
        align-items: flex-start;
        gap: 20px;
        margin-bottom: 30px;
    }

    .info-icon {
        background: var(--primary);
        color: var(--white);
        width: 50px;
        height: 50px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.2rem;
        flex-shrink: 0;
    }

    .info-content h4 {
        color: var(--text);
        margin-bottom: 5px;
        font-size: 1.1rem;
    }

    .info-content p {
        color: #666;
        line-height: 1.6;
    }

    .social-contact {
        margin-top: 40px;
    }

    .social-contact h4 {
        margin-bottom: 20px;
        color: var(--primary);
    }

    .social-icons {
        display: flex;
        gap: 15px;
    }

    .social-icons a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--primary);
        color: var(--white);
        border-radius: 50%;
        text-decoration: none;
        transition: all 0.3s ease;
    }

    .social-icons a:hover {
        background: var(--secondary);
        transform: translateY(-3px);
    }

    /* CONTACT FORM */
    .contact-form-container {
        background: var(--white);
        padding: 40px;
        border-radius: 12px;
        box-shadow: 0 5px 20px rgba(0,0,0,0.05);
         animation: fadeUp 1.2s ease-in-out;
    }

    .contact-form-container h2 {
        color: var(--primary);
        margin-bottom: 30px;
        font-size: 1.8rem;
    }

    .form-group {
        margin-bottom: 25px;
    }

    .form-group label {
        display: block;
        margin-bottom: 8px;
        color: var(--text);
        font-weight: 500;
    }

    .form-control {
        width: 100%;
        padding: 12px 15px;
        border: 1px solid #ddd;
        border-radius: 6px;
        font-size: 1rem;
        transition: border-color 0.3s ease;
    }

    .form-control:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(15, 61, 62, 0.1);
    }

    textarea.form-control {
        min-height: 150px;
        resize: vertical;
    }

    .submit-btn {
        background: var(--primary);
        color: var(--white);
        padding: 14px 30px;
        border: none;
        border-radius: 6px;
        font-size: 1rem;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s ease;
        width: 100%;
    }

    .submit-btn:hover {
        background: var(--secondary);
        transform: translateY(-2px);
    }

    /* MAP SECTION */
    .map-section {
        padding: 0 20px 80px;
        max-width: 1200px;
        margin: 0 auto;
    }

    .map-section h2 {
        text-align: center;
        color: var(--primary);
        margin-bottom: 40px;
        font-size: 2rem;
    }

    .map-container {
        height: 400px;
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }

    .map-placeholder {
        background: linear-gradient(135deg, #f0f7fa, #e3f2f9);
        height: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        color: var(--primary);
    }

    .map-placeholder i {
        font-size: 4rem;
        margin-bottom: 20px;
        opacity: 0.7;
    }

    .map-placeholder h3 {
        font-size: 1.5rem;
        margin-bottom: 10px;
    }

    /* SUCCESS MESSAGE */
    .success-message {
        background: #d4edda;
        color: #155724;
        padding: 15px;
        border-radius: 6px;
        margin-bottom: 20px;
        display: none;
    }

    /* RESPONSIVE */
    @media (max-width: 768px) {
        .contact-hero h1 {
            font-size: 2.2rem;
        }
        
        .contact-hero p {
            font-size: 1rem;
        }
        
        .info,
        .contact-form-container {
            padding: 30px 20px;
        }
        
        .section-grid {
            gap: 30px;
        }

        .info h2 {
            font-size: 1.3rem;
        }

        .info-icon {
            width: 40px;
            height: 40px;
        }
    }




    /* MODULES SECTION */
    .modules-section {
        padding: 80px 20px;
        max-width: 1300px;
        margin: 0 auto;
    }

    .modules-container {
        display: grid;
        grid-template-columns: 350px 1fr;
        gap: 50px;
        align-items: start;
    }

    /* SIDEBAR TABS */
    .modules-sidebar {
        background: var(--light);
        border-radius: 12px;
        padding: 25px;
        box-shadow: 0 5px 20px rgba(0,0,0,0.05);
        position: sticky;
        top: 100px;
    }

    .sidebar-title {
        color: var(--primary);
        margin-bottom: 25px;
        font-size: 1.5rem;
        padding-bottom: 15px;
        border-bottom: 2px solid var(--secondary);
    }

    .module-tabs {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .module-tab {
        padding: 15px 20px;
        background: var(--white);
        border: none;
        border-radius: 8px;
        text-align: left;
        cursor: pointer;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        gap: 15px;
        font-size: 1rem;
        color: var(--text);
        font-weight: 500;
    }

    .module-tab:hover {
        background: var(--primary);
        color: var(--white);
        transform: translateX(5px);
    }

    .module-tab:hover i {
        color: var(--white);
    }

    .module-tab.active {
        background: var(--primary);
        color: var(--white);
        box-shadow: 0 5px 15px rgba(15, 61, 62, 0.2);
    }

    .module-tab i {
        color: var(--secondary);
        font-size: 1.3rem;
        width: 24px;
        transition: color 0.3s ease;
    }

    .module-tab.active i {
        color: var(--white);
    }

    /* MODULE CONTENT */
    .module-content {
        background: var(--white);
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }

    .module-image-container {
        height: 100%;
        overflow: hidden;
        background: linear-gradient(135deg, #f5f7fa, #e4e8f0);
    }

    .module-image {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }

    .module-image:hover {
        transform: scale(1.02);
    }

    .module-image-placeholder {
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, var(--light), #ffffff);
        color: var(--primary);
    }

    .module-image-placeholder i {
        font-size: 4rem;
        opacity: 0.5;
    }

    .module-details {
        padding: 40px;
    }

    .module-header {
        margin-bottom: 30px;
    }

    .module-header h2 {
        color: var(--primary);
        font-size: 2.2rem;
        margin-bottom: 15px;
    }


    .module-description {
        color: #555;
        line-height: 1.8;
        font-size: 1.05rem;
        margin-bottom: 30px;
    }

    .module-features {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        margin-bottom: 40px;
    }

    .feature-item {
        display: flex;
        align-items: flex-start;
        gap: 10px;
    }

    .feature-item i {
        color: var(--secondary);
        margin-top: 3px;
        flex-shrink: 0;
    }

    .module-actions {
        display: flex;
        gap: 15px;
        flex-wrap: wrap;
    }

    .module-content-item {
        display: none; /* hide all by default */
    }

    .module-content-item.active {
        display: block; /* show only active */
    }
    
    /* RESPONSIVE */
    @media (max-width: 1024px) {
        .modules-container {
            grid-template-columns: 1fr;
            gap: 40px;
        }

        .modules-sidebar {
            position: static;
        }

        .module-tabs {
            flex-direction: row;
            flex-wrap: wrap;
            justify-content: center;
        }

        .module-tab {
            flex: 1;
            min-width: 200px;
            justify-content: center;
            text-align: left;
        }

        .module-tab i {
            margin-right: 10px;           
            margin-left: 0;
        }

        .module-image-container {
            height: 350px;
            height: 100%;
        }
    }

    @media (max-width: 768px) {

        .module-image-container {
            height: 100%;
            overflow: hidden;
            background: linear-gradient(135deg, #f5f7fa, #e4e8f0);
        }

        .module-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }


        .module-details {
            padding: 30px 20px;
        }

        .module-header h2 {
            font-size: 1.8rem;
        }

        .module-features {
            grid-template-columns: 1fr;
        }

        .module-actions {
            flex-direction: column;
        }

        .module-tab {
            justify-content: flex-start;   
            text-align: left;
        }

        .module-tab i {
            margin-right: 10px;           
            margin-left: 0;
        }

        .module-description{
            font-size: 15px;
        }

    }

    /* ANIMATION */
    .fade-in {
        animation: fadeIn 0.5s ease-in-out;
    }

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