main { flex: 1 0 auto; }
       
        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(40px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-40px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeInLeft {
            from {
                opacity: 0;
                transform: translateX(-40px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        @keyframes fadeInRight {
            from {
                opacity: 0;
                transform: translateX(40px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

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

        .animate-on-scroll {
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s ease-out;
        }

        .animate-on-scroll.animated {
            opacity: 1;
            transform: translateY(0);
        }
        /* Hero Section */
        .hero-section {
            position: relative;
            overflow: hidden;
            height: 550px;
            background: url("https://nekinsan-admin.s3.ap-south-1.amazonaws.com/web_images/set_flash_banner_13_oct.webp");
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            color: white;
        }
       
        .hero-content {
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }
       
        .hero-title {
            font-size: 60px;
            font-weight: 400;
            line-height: 1.1;
            animation: fadeInDown 0.8s ease-out 0.2s both;
        }
       
        .hero-subtitle {
            font-size: 2rem;
            font-weight: 600;
            color: var(--secondary-red);
            margin-bottom: 1.5rem;
            animation: fadeInDown 0.8s ease-out 0.4s both;
        }
       
        .hero-description {
            font-size: 1.2rem;
            line-height: 1.6;
            margin-bottom: 2rem;
            color: rgba(255, 255, 255, 0.9);
            animation: fadeInUp 0.8s ease-out 0.6s both;
        }
       
        /* Feature Section */
        .feature-section {
            padding: 40px 0;
            background: #f8f9fa;
        }
       
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
       
        .section-title {
            font-size: 3rem;
            font-weight: 700;
            color: #333;
            margin-bottom: 15px;
        }
       
        .section-subtitle {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--primary-red);
            margin-bottom: 20px;
        }
       
        .section-description {
            font-size: 1.1rem;
            color: #666;
            line-height: 1.6;
            max-width: 900px;
            margin: 0 auto 40px;
        }
       
        /* Flash Types */
        .flash-types {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto;
        }
       
        .flash-type-card {
            background: white;
            border-radius: 20px;
            padding: 0;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
            animation: fadeInUp 0.6s ease-out both;
            overflow: hidden;
        }

        .flash-type-card:nth-child(1) { animation-delay: 0.1s; }
        .flash-type-card:nth-child(2) { animation-delay: 0.2s; }
       
        .flash-type-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
        }

        .flash-card-image {
            width: 100%;
            height: 350px;
            object-fit: cover;
        }

        .flash-card-content {
            padding: 30px;
        }

        .flash-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }
       
        .flash-icon {
            width: 60px;
            height: 60px;
            background: var(--light-red);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
       
        .flash-icon svg {
            width: 30px;
            height: 30px;
            stroke: var(--primary-red);
        }
       
        .flash-type-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: #333;
            margin: 0;
            line-height: 1.2;
        }
       
        .flash-features {
            list-style: none;
            padding: 0;
        }
       
        .flash-features li {
            padding: 12px 0;
            border-bottom: 1px solid #eee;
            display: flex;
            align-items: center;
            gap: 12px;
        }
       
        .flash-features li:last-child {
            border-bottom: none;
        }
       
        .flash-features li::before {
            content: "✓";
            color: var(--primary-red);
            font-weight: bold;
            font-size: 1.2rem;
        }
       
        /* How to Use Steps Section */
        .how-to-use {
            padding: 40px 0;
            background: white;
        }

        .steps-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
       
        .steps-header {
            text-align: center;
            margin-bottom: 50px;
        }
       
        .steps-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: #333;
            margin-bottom: 15px;
            line-height: 1.2;
        }
       
        .steps-subtitle {
            font-size: 1.2rem;
            color: #dc3545;
            font-weight: 600;
            margin-bottom: 0;
        }
       
        .steps-row {
            position: relative;
        }
       
        .steps-images {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 20px;
            margin-bottom: 60px;
        }
       
        .step-image-container {
            flex: 1;
            text-align: center;
            animation: fadeInUp 0.6s ease-out both;
        }

        .step-image-container:nth-child(1) { animation-delay: 0.1s; }
        .step-image-container:nth-child(2) { animation-delay: 0.2s; }
        .step-image-container:nth-child(3) { animation-delay: 0.3s; }
        .step-image-container:nth-child(4) { animation-delay: 0.4s; }
        .step-image-container:nth-child(5) { animation-delay: 0.5s; }
        .step-image-container:nth-child(6) { animation-delay: 0.6s; }
       
        .step-image {
            width: 100%;
            max-width: 180px;
            height: 300px;
            object-fit: contain;
            border-radius: 12px;
            transition: all 0.3s ease;
        }
       
        .step-image:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }
       
        .connecting-line {
            position: relative;
            height: 4px;
            background: linear-gradient(90deg, #dc3545, #bf023f);
            border-radius: 2px;
        }
       
        .steps-info {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 20px;
        }
       
        .step-info {
            flex: 1;
            text-align: center;
            position: relative;
            padding-top: 25px;
        }
       
        .step-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #dc3545, #bf023f);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.4rem;
            box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
            margin: 0 auto 15px auto;
            position: absolute;
            top: -25px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
        }
       
        .step-title {
            font-size: 1rem;
            font-weight: 600;
            color: #333;
            margin-bottom: 10px;
            line-height: 1.4;
        }
       
        .step-description {
            font-size: 0.9rem;
            color: #666;
            line-height: 1.5;
            margin: 0;
        }
       
        .vertical-steps {
            display: none;
        }

        .vertical-step {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            margin-bottom: 40px;
            position: relative;
            background: white;
            border-radius: 15px;
            padding: 20px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            margin-left: 40px;
            animation: fadeInLeft 0.6s ease-out both;
        }

        .vertical-step:nth-child(1) { animation-delay: 0.1s; }
        .vertical-step:nth-child(2) { animation-delay: 0.2s; }
        .vertical-step:nth-child(3) { animation-delay: 0.3s; }
        .vertical-step:nth-child(4) { animation-delay: 0.4s; }
        .vertical-step:nth-child(5) { animation-delay: 0.5s; }
        .vertical-step:nth-child(6) { animation-delay: 0.6s; }
       
        .vertical-step:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
        }
       
        .vertical-step:not(:last-child)::after {
            content: '';
            position: absolute;
            left: -40px;
            top: 25px;
            width: 3px;
            height: calc(100% + 40px);
            background: linear-gradient(180deg, #dc3545, #bf023f);
            z-index: 1;
        }
       
        .vertical-number {
            position: absolute;
            left: -65px;
            top: 0;
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #dc3545, #bf023f);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.4rem;
            box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
            z-index: 2;
        }
       
        .vertical-image {
            width: 120px;
            height: 200px;
            object-fit: contain;
            border-radius: 8px;
            flex-shrink: 0;
            order: 2;
            align-self: center;
        }
       
        .vertical-content {
            flex: 1;
            order: 1;
        }
       
        .vertical-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: #333;
            margin-bottom: 8px;
            line-height: 1.3;
        }
       
        .vertical-description {
            font-size: 0.95rem;
            color: #666;
            line-height: 1.5;
            margin: 0;
        }
       
        /* Receiver Section */
        .receiver-section {
            padding: 60px 0;
            background: #f8f9fa;
        }

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

        .receiver-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .receiver-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: #333;
            margin-bottom: 15px;
            line-height: 1.2;
        }

        .receiver-subtitle {
            font-size: 1.2rem;
            color: #dc3545;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .receiver-description {
            font-size: 1.1rem;
            color: #666;
            line-height: 1.6;
            max-width: 900px;
            margin: 0 auto;
        }

        .receiver-cards {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            margin-top: 40px;
        }

        .receiver-card {
            background: transparent;
            border-radius: 20px;
            padding: 0;
            text-align: center;
            transition: transform 0.3s ease;
            animation: fadeInUp 0.6s ease-out both;
        }

        .receiver-card:nth-child(1) { animation-delay: 0.1s; }
        .receiver-card:nth-child(2) { animation-delay: 0.2s; }

        .receiver-card:hover {
            transform: translateY(-5px);
        }

        .receiver-card-image {
            width: 100%;
            max-width: 400px;
            height: 550px;
            margin: 0 auto;
            border-radius: 15px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
        }
       
        /* CTA Section */
        .cta-section {
            text-align: center;
            background: linear-gradient(89.76deg, #6886FF -4.67%, #55129D 21.48%, #8B1789 47.63%, #FF053C 99.93%);
        }
       
        .cta-container {
            padding: 20px 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 30px;
            width: 100%;
            position: relative;
        }

        .qr-image {
            border-radius: 10px;
            padding: 10px;
            width: 120px;
            height: 120px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
       
        .qr-code {
            width: 150px;
            height: auto;
        }
       
        .cta-button {
            background: white;
            color: black;
            border: none;
            width: 192px;
            height: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 15px;
            box-shadow: 0px 4px 4px 0px rgba(0, 0, 0, 0.25);
            transition: all 0.3s ease;
            text-transform: none;
            letter-spacing: normal;
            opacity: 1;
            padding: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            outline: 3px solid white;
            outline-offset: 4px;
        }
       
        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0px 6px 6px 0px rgba(0, 0, 0, 0.3);
            color: black;
            background: white;
            outline: 3px solid white;
            outline-offset: 4px;
        }

        /* Modal Styles */
        .modal-header {
            background-color: #bf023f;
            color: white;
            border-bottom: none;
            border-radius: 0.5rem 0.5rem 0 0;
        }
       
        .modal-header .btn-close {
            filter: invert(1);
        }
       
        .modal-title {
            font-weight: 700;
            font-size: 1.4rem;
        }
       
        .modal-body {
            padding: 2rem;
        }
       
        .form-label {
            font-weight: 600;
            color: #333;
            margin-bottom: 6px;
            font-size: 0.95rem;
        }
       
        .required {
            color: #dc3545;
            margin-left: 2px;
        }
       
        .form-control {
            border: 2px solid #e9ecef;
            border-radius: 8px;
            padding: 10px 12px;
            font-size: 0.95rem;
            transition: border-color 0.3s ease;
            height: auto;
        }
       
        .form-control:focus {
            border-color: var(--primary-red);
            box-shadow: 0 0 0 0.2rem rgba(191, 2, 63, 0.15);
        }
       
        .form-control::placeholder {
            color: #adb5bd;
            font-size: 0.9rem;
        }
       
        textarea.form-control {
            resize: vertical;
            min-height: 80px;
        }
       
        .submit-btn {
            background-color: var(--primary-red);
            border: none;
            padding: 12px 35px;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s ease;
            font-size: 1rem;
        }
       
        .submit-btn:hover {
            background-color: var(--secondary-red);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(191, 2, 63, 0.3);
        }
       
        .form-group {
            margin-bottom: 1.2rem;
        }
        /* Responsive */
        @media (max-width: 991px) {
            .flash-types {
                grid-template-columns: 1fr;
            }

            .receiver-cards {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .steps-images,
            .connecting-line,
            .steps-info {
                display: none !important;
            }
           
            .vertical-steps {
                display: block !important;
            }
           
            .section-title {
                font-size: 2rem;
                line-height: 1.1;
            }

            .section-subtitle {
                font-size: 1.1rem;
                line-height: 1.2;
            }

            .receiver-title {
                font-size: 2rem;
                line-height: 1.1;
            }

            .receiver-subtitle {
                font-size: 1.1rem;
                line-height: 1.2;
            }
        }
       
        @media (max-width: 768px) {
            .hero-section {
                height: 500px;
                background-image: url("https://nekinsan-admin.s3.ap-south-1.amazonaws.com/web_images/set_flash_bannerM_13_oct.webp");
            }
           
            .hero-title {
                font-size: 1.8rem;
                line-height: 1.1;
            }

            .hero-subtitle {
                font-size: 1.2rem;
                line-height: 1.2;
            }

            .hero-description {
                font-size: 1rem;
            }
           
            .section-title {
                font-size: 1.6rem;
                line-height: 1.1;
            }

            .section-subtitle {
                font-size: 1rem;
                line-height: 1.2;
            }

            .section-description {
                font-size: 1rem;
            }

            .receiver-title {
                font-size: 1.6rem;
                line-height: 1.1;
            }

            .receiver-subtitle {
                font-size: 1rem;
                line-height: 1.2;
            }

            .receiver-description {
                font-size: 1rem;
            }

            .steps-title {
                font-size: 1.6rem;
                line-height: 1.1;
            }

            .steps-subtitle {
                font-size: 1rem;
                line-height: 1.2;
            }

            .vertical-step {
                gap: 20px;
                padding: 15px;
            }
           
            .vertical-number {
                width: 45px;
                height: 45px;
                font-size: 1.3rem;
            }
           
            .vertical-image {
                width: 100px;
                height: 180px;
            }
           
            .vertical-title {
                font-size: 1rem;
            }
           
            .vertical-description {
                font-size: 0.9rem;
            }

            .cta-container {
                flex-direction: row;
                flex-wrap: nowrap;
                padding: 10px;
                gap: 10px;
            }
           
            .qr-image {
                margin: 0;
                padding: 5px;
                width: 80px;
                height: 80px;
            }
           
            .qr-code {
                width: 70px;
                height: auto;
            }
        }

        @media (max-width: 576px) {
            .hero-section {
                height: 210px;
            }
           
            .hero-title {
                font-size: 1.5rem;
                line-height: 1.1;
            }

            .hero-subtitle {
                font-size: 1rem;
                line-height: 1.2;
            }

            .hero-description {
                font-size: 0.9rem;
            }

            .section-title {
                font-size: 1.2rem;
                line-height: 1.1;
            }

            .section-subtitle {
                font-size: 0.9rem;
                line-height: 1.2;
            }

            .vertical-step {
                flex-direction: column;
                text-align: center;
                gap: 15px;
                margin-left: 50px;
            }
           
            .vertical-number {
                left: -60px;
            }
           
            .vertical-step:not(:last-child)::after {
                left: -38px;
            }
           
            .vertical-image {
                width: 140px;
                height: 200px;
            }

            .steps-title {
                font-size: 1.4rem;
                line-height: 1.1;
            }
           
            .steps-subtitle {
                font-size: 0.9rem;
                line-height: 1.2;
            }

            .flash-card-image {
                width: 100%;
                height: 280px;
            }

            .receiver-title {
                font-size: 1.4rem;
                line-height: 1.1;
            }
           
            .receiver-subtitle {
                font-size: 0.9rem;
                line-height: 1.2;
            }

            .receiver-description {
                font-size: 0.9rem;
            }
        }