html {
            scroll-behavior: smooth;
        }

        /* Ensure .hidden always wins, even against display:inline-flex in component CSS */
        .hidden { display: none !important; }

        /* Always hide the nav download button on mobile — no Tailwind class conflict */
        @media (max-width: 639px) {
            #navBuyBtn { display: none !important; }
        }

        body {
            font-family: 'Inter', sans-serif;
            overflow-x: hidden;
        }

        .gradient-text {
            background: linear-gradient(135deg, #FF5A1F, #FF6B35, #FF3D00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .gradient-bg {
            background: linear-gradient(135deg, #FF5A1F, #FF6B35, #FF3D00);
            background-size: 200% 200%;
        }

        .glass {
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .card-hover {
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .card-hover:hover {
            transform: translateY(-8px);
            box-shadow: 0 25px 50px -12px rgba(255, 90, 31, 0.15);
        }

        .btn-primary {
            background: linear-gradient(135deg, #FF5A1F, #FF6B35, #FF3D00);
            background-size: 200% 200%;
            transition: all 0.3s ease;
        }

        /* Make primary buttons larger and more tappable */
        .btn-primary {
            padding: 1rem 2.25rem !important;
            font-size: 1.125rem !important;
            min-height: 56px;
            align-items: center;
            justify-content: center;
        }

        .btn-primary:hover {
            background-position: 100% 0;
            transform: translateY(-2px);
            box-shadow: 0 20px 40px -10px rgba(255, 90, 31, 0.4);
        }

        .reveal {
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }

        .stagger-1 {
            transition-delay: 0.1s;
        }

        .stagger-2 {
            transition-delay: 0.2s;
        }

        .stagger-3 {
            transition-delay: 0.3s;
        }

        .stagger-4 {
            transition-delay: 0.4s;
        }

        .stagger-5 {
            transition-delay: 0.5s;
        }

        .stagger-6 {
            transition-delay: 0.6s;
        }

        .blob {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            opacity: 0.4;
            pointer-events: none;
        }

        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease-out, padding 0.4s ease;
        }

        .accordion-content.open {
            max-height: 300px;
        }

        .scroll-indicator {
            position: fixed;
            top: 0;
            left: 0;
            height: 3px;
            background: linear-gradient(90deg, #FF5A1F, #FF6B35, #FF3D00);
            z-index: 9999;
            transition: width 0.1s ease;
        }

        .fab-container {
            position: fixed;
            bottom: 28px;
            right: 28px;
            z-index: 100;
            display: flex;
            flex-direction: column;
            gap: 14px;
            align-items: center;
        }
        .floating-fab {
            width: 58px;
            height: 58px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 26px;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
        }
        .fab-telegram {
            background: linear-gradient(135deg, #FF5A1F, #FF6B35, #FF3D00);
            box-shadow: 0 6px 20px rgba(255, 90, 31, 0.45);
        }
        .fab-telegram:hover {
            background: linear-gradient(135deg, #e8501c, #e86030, #e03700);
            transform: scale(1.12);
            box-shadow: 0 10px 28px rgba(255, 90, 31, 0.65);
        }
        .fab-call {
            background: linear-gradient(135deg, #FF3D00, #FF5A1F, #FF6B35);
            box-shadow: 0 6px 20px rgba(255, 61, 0, 0.45);
        }
        .fab-call:hover {
            background: linear-gradient(135deg, #e03700, #e8501c, #e86030);
            transform: scale(1.12);
            box-shadow: 0 10px 28px rgba(255, 61, 0, 0.65);
        }

        /* ── Description body formatting ─────────────────────────────── */
        .desc-body { font-family: 'Inter', sans-serif; color: #374151; }
        .desc-body .desc-para {
            margin-bottom: 0.85rem;
            font-size: 1rem;
            line-height: 1.8;
            color: #374151;
        }
        .desc-body .desc-section-title {
            font-family: 'Poppins', sans-serif;
            font-weight: 700;
            font-size: 1.05rem;
            color: #111827;
            margin-top: 1.5rem;
            margin-bottom: 0.4rem;
            border-left: 3px solid #FF5A1F;
            padding-left: 10px;
        }
        .desc-body .desc-heading {
            font-family: 'Poppins', sans-serif;
            font-weight: 700;
            font-size: 1.15rem;
            color: #111827;
            margin-top: 1.6rem;
            margin-bottom: 0.5rem;
        }
        .desc-body .desc-list {
            list-style: none;
            padding: 0;
            margin: 0.5rem 0 1rem 0;
        }
        .desc-body .desc-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 6px 0;
            font-size: 1rem;
            line-height: 1.7;
            color: #374151;
        }
        .desc-body .desc-list li::before {
            content: '';
            display: inline-block;
            width: 7px;
            height: 7px;
            min-width: 7px;
            border-radius: 50%;
            background: #FF5A1F;
            margin-top: 9px;
        }
        .desc-body .desc-spacer { height: 0.6rem; }
        .desc-body strong { color: #111827; font-weight: 700; }
        .desc-body em { font-style: italic; color: #4B5563; }

        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            z-index: 9998;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .modal-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .modal-content {
            background: white;
            border-radius: 24px;
            padding: 40px;
            max-width: 420px;
            width: 90%;
            transform: scale(0.9) translateY(20px);
            transition: transform 0.3s ease;
            box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.3);
            position: relative;
        }

        .modal-overlay.active .modal-content {
            transform: scale(1) translateY(0);
        }

        .book-mockup {
            width: 280px;
            height: 380px;
            background: linear-gradient(145deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            border-radius: 4px 12px 12px 4px;
            position: relative;
            box-shadow:
                -15px 15px 40px rgba(0, 0, 0, 0.4),
                -5px 5px 15px rgba(0, 0, 0, 0.2),
                inset 2px 0 5px rgba(255, 255, 255, 0.1);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 30px;
            text-align: center;
            margin: 0 auto;
        }

        .book-mockup::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 12px;
            background: linear-gradient(to right, #0a0a1a, #1a1a2e);
            border-radius: 4px 0 0 4px;
            box-shadow: inset -2px 0 4px rgba(0, 0, 0, 0.5);
        }

        .book-mockup::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 20px;
            right: -10px;
            height: 20px;
            background: rgba(0, 0, 0, 0.15);
            filter: blur(15px);
            border-radius: 50%;
        }

        .book-spine {
            position: absolute;
            left: 4px;
            top: 0;
            bottom: 0;
            width: 8px;
            background: linear-gradient(to right, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.05));
            border-radius: 2px;
        }

        .book-ribbon {
            position: absolute;
            bottom: -12px;
            right: 30px;
            width: 30px;
            height: 50px;
            background: linear-gradient(135deg, #FF5A1F, #FF3D00);
            clip-path: polygon(0 0, 100% 0, 100% 75%, 50% 100%, 0 75%);
            box-shadow: 0 4px 10px rgba(255, 90, 31, 0.4);
        }

        .book-icon {
            font-size: 64px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #FF5A1F, #FF6B35);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .book-title {
            font-family: 'Poppins', sans-serif;
            font-weight: 700;
            font-size: 22px;
            line-height: 1.3;
            color: white;
            margin-bottom: 8px;
        }

        .book-subtitle {
            font-family: 'Inter', sans-serif;
            font-weight: 300;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 2px;
            text-transform: uppercase;
        }

        .book-author {
            margin-top: 30px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        .lang-toggle {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 90, 31, 0.2);
            border-radius: 9999px;
            padding: 4px;
            gap: 2px;
            cursor: pointer;
        }

        .lang-toggle button {
            padding: 6px 14px;
            border-radius: 9999px;
            font-size: 12px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            background: transparent;
            color: #6b7280;
            cursor: pointer;
        }

        .lang-toggle button.active {
            background: linear-gradient(135deg, #FF5A1F, #FF6B35);
            color: white;
            box-shadow: 0 2px 8px rgba(255, 90, 31, 0.3);
        }

        .shine {
            position: relative;
            overflow: hidden;
        }

        .shine::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.08) 50%, rgba(255, 255, 255, 0) 100%);
            transform: rotate(30deg);
            animation: shine 6s infinite;
        }

        @keyframes shine {
            0% {
                left: -100%;
            }

            20% {
                left: 100%;
            }

            100% {
                left: 100%;
            }
        }

        /* ============================================================
   The section below is ADDED for checkout.html (screenshot-based
   CBE / Telebirr payment page). Nothing above this line has been
   changed from the original reference style.css.
   ============================================================ */

        .step-badge {
            width: 32px;
            height: 32px;
            border-radius: 9999px;
            background: linear-gradient(135deg, #FF5A1F, #FF6B35, #FF3D00);
            color: white;
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .bump-box {
            border: 2px dashed #FF5A1F;
            background: linear-gradient(135deg, rgba(255, 90, 31, 0.06), rgba(255, 61, 0, 0.04));
            border-radius: 1rem;
        }

        .bump-box.active {
            border-style: solid;
            box-shadow: 0 10px 30px -10px rgba(255, 90, 31, 0.35);
        }

        .pay-option {
            border: 2px solid #e5e7eb;
            border-radius: 1rem;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .pay-option:hover {
            border-color: #FF6B35;
        }

        .pay-option.selected {
            border-color: #FF5A1F;
            background: linear-gradient(135deg, rgba(255, 90, 31, 0.06), rgba(255, 61, 0, 0.04));
            box-shadow: 0 10px 30px -12px rgba(255, 90, 31, 0.3);
        }

        .copy-chip {
            font-family: 'Inter', monospace, sans-serif;
            letter-spacing: 0.5px;
        }

        .upload-drop {
            border: 2px dashed #d1d5db;
            border-radius: 1rem;
            transition: all 0.2s ease;
        }

        .upload-drop.drag-over,
        .upload-drop.has-file {
            border-color: #FF5A1F;
            background: rgba(255, 90, 31, 0.04);
        }

        .spinner {
            width: 20px;
            height: 20px;
            border-radius: 9999px;
            border: 3px solid rgba(255, 255, 255, 0.4);
            border-top-color: white;
            animation: spin 0.7s linear infinite;
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        /* --- Spinner for loading states ----------------------------------- */
        .spinner-large {
            width: 40px;
            height: 40px;
            border-radius: 9999px;
            border: 4px solid rgba(255, 90, 31, 0.15);
            border-top-color: #FF5A1F;
            animation: spin 0.8s linear infinite;
            margin: 0 auto;
        }