:root {
            --blue: #0d6efd;
            --blue-dark: #0b5ed7;
            --blue-light: #eff6ff;
            --dark: #1a1a2e;
            --mid: #5a6172;
            --light-bg: #f4f6fb;
            --white: #ffffff;
            --border: #e2e8f0;
            --success: #16a34a;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 28px rgba(0,0,0,0.09);
            --radius: 16px;
            --radius-sm: 10px;
        }

        body {
            font-family: 'DM Sans', sans-serif;
            background: var(--light-bg);
            color: var(--dark);
        }

        h1,h2,h3,h4,h5,h6 {
            font-family: 'Plus Jakarta Sans', sans-serif;
            font-weight: 700;
        }

        /* ===== HERO BANNER ===== */
        .hero-banner {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 55%, #0f3460 100%);
            padding: 56px 0 18px;
            position: relative;
            overflow: hidden;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            top: -80px; right: -80px;
            width: 360px; height: 360px;
            background: radial-gradient(circle, rgba(0,119,181,0.20) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-banner::after {
            content: '';
            position: absolute;
            bottom: -40px; left: 5%;
            width: 200px; height: 200px;
            background: radial-gradient(circle, rgba(13,110,253,0.10) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-title {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 14px;
        }

        .hero-subtitle {
            font-size: 16px;
            color: rgba(255,255,255,0.75);
            line-height: 1.6;
            font-weight: 300;
            max-width: 480px;
        }

        .hero-img {
            max-width: 240px;
            filter: drop-shadow(0 16px 32px rgba(0,0,0,0.4));
            animation: floatImg 3s ease-in-out infinite;
        }

        @keyframes floatImg {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-8px); }
        }

        /* ===== PAGE WRAPPER ===== */
        .page-section { padding: 40px 0 0; }

        /* ===== PURCHASE CARD ===== */
        .purchase-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 2px solid var(--border);
            padding: 26px 22px;
            box-shadow: var(--shadow-md);
            position: sticky;
            top: 20px;
        }

        .purchase-card .card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--dark);
            text-align: center;
            margin-bottom: 18px;
            font-family: 'Plus Jakarta Sans', sans-serif;
            padding-bottom: 14px;
            border-bottom: 2px solid var(--border);
        }

        .price-display {
            text-align: center;
            background: var(--blue-light);
            border-radius: var(--radius-sm);
            padding: 18px 12px 14px;
            margin-bottom: 20px;
            border: 1px solid #bfdbfe;
        }

        .price-display .price-amount {
            font-size: 38px;
            font-weight: 800;
            color: var(--blue);
            font-family: 'Plus Jakarta Sans', sans-serif;
            line-height: 1;
        }

        .price-display .price-label {
            font-size: 12px;
            color: var(--mid);
            margin-top: 5px;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .btn-buy {
            background: linear-gradient(135deg, #0d6efd 0%, #0b5ed7 100%);
            color: #fff !important;
            border: none;
            border-radius: var(--radius-sm);
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 700;
            font-family: 'Plus Jakarta Sans', sans-serif;
            box-shadow: 0 4px 16px rgba(13,110,253,0.35);
            transition: all 0.3s ease;
            width: 100%;
            cursor: pointer;
            display: block;
            text-align: center;
        }

        .btn-buy:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(13,110,253,0.48);
        }

        /* ===== COUPON SECTION ===== */
        .coupon-section {
            margin-top: 20px;
            padding-top: 18px;
            border-top: 1px dashed var(--border);
        }

        .coupon-toggle-label {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 13px;
            font-weight: 500;
            color: var(--mid);
            cursor: pointer;
            user-select: none;
        }

        .coupon-toggle-label input[type="checkbox"] {
            width: 16px; height: 16px;
            accent-color: var(--blue);
            cursor: pointer;
            flex-shrink: 0;
        }

        #inputContainer {
            margin-top: 12px;
            background: var(--light-bg);
            border-radius: var(--radius-sm);
            padding: 14px;
            border: 1px solid var(--border);
        }

        #inputContainer label {
            font-size: 11px;
            font-weight: 600;
            color: var(--mid);
            text-transform: uppercase;
            letter-spacing: 0.6px;
            margin-bottom: 7px;
            display: block;
        }

        #inputContainer input[type="text"] {
            width: 100%;
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 14px;
            font-family: 'DM Sans', sans-serif;
            background: var(--white);
            color: var(--dark);
            outline: none;
            transition: border-color 0.2s;
            box-sizing: border-box;
        }

        #inputContainer input[type="text"]:focus {
            border-color: var(--blue);
            box-shadow: 0 0 0 3px rgba(13,110,253,0.10);
        }

        .btn-coupon-submit {
            background: linear-gradient(135deg, #16a34a, #15803d);
            color: #fff !important;
            border: none;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-size: 13px;
            font-weight: 600;
            font-family: 'Plus Jakarta Sans', sans-serif;
            box-shadow: 0 3px 10px rgba(22,163,74,0.28);
            transition: all 0.3s ease;
            display: block;
            width: 100%;
            margin-top: 10px;
            cursor: pointer;
        }

        .btn-coupon-submit:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(22,163,74,0.40);
        }

        /* ===== CONTENT CARDS ===== */
        .content-card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            padding: 36px 32px;
            margin-bottom: 24px;
        }

        .section-heading {
            font-size: 26px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .section-heading::before {
            content: '';
            display: inline-block;
            width: 5px; height: 28px;
            background: var(--blue);
            border-radius: 4px;
            flex-shrink: 0;
        }

        /* ===== KEY FEATURES ===== */
        .feature-card {
            background: var(--light-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 24px 16px;
            text-align: center;
            transition: all 0.3s ease;
            height: 100%;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--blue);
        }

        .feature-card img {
            max-height: 70px;
            margin: 0 auto 14px;
            display: block;
        }

        .feature-card h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--dark);
            margin: 0;
            line-height: 1.5;
        }

        /* ===== WHY SECTION ===== */
        .why-section {
            background: linear-gradient(135deg, #eff6ff, #dbeafe);
            border-radius: var(--radius);
            padding: 36px 32px;
            margin-bottom: 24px;
        }

        .why-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-bottom: 18px;
            padding: 14px 16px;
            background: rgba(255,255,255,0.7);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(13,110,253,0.12);
        }

        .why-item img {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .why-item span {
            font-size: 15px;
            color: var(--dark);
            line-height: 1.5;
            font-weight: 500;
        }

        /* ===== BENEFITS ===== */
        .benefit-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 24px 20px;
            text-align: center;
            transition: all 0.3s ease;
            height: 100%;
        }

        .benefit-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--blue);
        }

        .benefit-card img {
            height: 100px;
            object-fit: contain;
            margin: 0 auto 16px;
            display: block;
        }

        .benefit-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .benefit-card p {
            font-size: 13px;
            color: var(--mid);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== HOW IT WORKS ===== */
        .hiw-section {
            background: linear-gradient(135deg, #f0f4ff, #e8f0fe);
            border-radius: var(--radius);
            padding: 36px 32px;
            margin-bottom: 24px;
        }

        .hiw-step {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 20px;
            background: rgba(255,255,255,0.8);
            border-radius: var(--radius);
            border: 1px solid rgba(13,110,253,0.12);
            margin-bottom: 16px;
            transition: all 0.3s ease;
        }

        .hiw-step:hover {
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }

        .hiw-step img {
            width: 80px;
            height: 80px;
            object-fit: contain;
            flex-shrink: 0;
        }

        .hiw-step-content .step-num {
            font-size: 12px;
            font-weight: 700;
            color: var(--blue);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 4px;
            font-family: 'Plus Jakarta Sans', sans-serif;
        }

        .hiw-step-content h2 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
        }

        .hiw-step-content p {
            font-size: 13px;
            color: var(--mid);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== CONTACT SECTION ===== */
        .contact-section {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            padding: 36px 32px;
            margin-bottom: 24px;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px;
            background: var(--light-bg);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            margin-bottom: 14px;
        }

        .contact-icon {
            width: 44px; height: 44px;
            background: var(--blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .contact-item h5 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 3px;
            color: var(--dark);
        }

        .contact-item p {
            font-size: 13px;
            color: var(--mid);
            margin: 0;
        }

        .contact-item a.chat-btn {
            display: inline-block;
            margin-top: 8px;
            background: #25D366;
            color: #fff !important;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .contact-item a.chat-btn:hover {
            background: #1ebe57;
            transform: translateY(-1px);
        }

        /* ===== CONTACT FORM ===== */
        .contact-form-wrap {
            background: var(--light-bg);
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid var(--border);
        }

        .contact-form-wrap h3 {
            font-size: 20px;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .contact-form-wrap .form-control {
            background: var(--white);
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 14px;
            font-family: 'DM Sans', sans-serif;
            height: auto;
            transition: border-color 0.2s;
            width: 100%;
            display: block;
            box-sizing: border-box;
            color: var(--dark);
        }

        .contact-form-wrap .form-control:focus {
            border-color: var(--blue);
            outline: none;
            box-shadow: 0 0 0 3px rgba(13,110,253,0.10);
        }

        .btn-callback {
            background: linear-gradient(135deg, #0d6efd, #0b5ed7);
            color: #fff !important;
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 700;
            font-family: 'Plus Jakarta Sans', sans-serif;
            box-shadow: 0 4px 16px rgba(13,110,253,0.30);
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .btn-callback:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(13,110,253,0.45);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 991px) {
            .purchase-card { position: static; margin-top: 28px; }
            .hero-title { font-size: 28px; }
            .content-card, .why-section, .hiw-section, .contact-section { padding: 24px 18px; }
        }

        @media (max-width: 768px) {
            .hero-banner { padding: 36px 0 28px; }
            .hiw-step { flex-direction: column; gap: 14px; }
            .hiw-step img { width: 56px; height: 56px; }
        }