body { 
            font-family: 'Kanit', 'Noto Sans Thai', Tahoma, sans-serif; 
            position: relative;
            overflow-x: hidden;
            background-color: #0f0c1b;
            margin: 0;
            padding: 0;
        }

        /* โลโก้ Saichat จริง (images/favicon.svg) แทนไอคอนทั่วไป */
        .lc-register-logo {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(255, 42, 117, 0.4);
        }

        .lc-register-logo img {
            width: 100%;
            height: 100%;
            display: block;
        }


        .animated-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(15, 12, 27, 0.85), rgba(26, 16, 47, 0.85)), 
                        url('https://images.unsplash.com/photo-1518199266791-5375a83190b7?q=80&w=1920&auto=format&fit=crop') no-repeat center center;
            background-size: cover;
            z-index: -1;
            animation: bgZoomPan 25s ease-in-out infinite alternate;
        }

        @keyframes bgZoomPan {
            0% { transform: scale(1) translate(0, 0); }
            100% { transform: scale(1.12) translate(-15px, -10px); }
        }

        .gradient-text {
            background: linear-gradient(135deg, #ff2a75 0%, #9d4edd 50%, #00f5d4 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .step-content { display: none; }
        .step-content.active { display: block; }

        /* --- Scroll Wheel Picker Styles --- */
        .wheel-container {
            position: relative;
            height: 160px;
            overflow: hidden;
            background: rgba(15, 12, 27, 0.7);
            border: 1px solid rgba(147, 51, 234, 0.3);
            border-radius: 1rem;
            display: flex;
            justify-content: space-between;
            touch-action: pan-y;
        }
        .wheel-highlight {
            position: absolute;
            top: 60px;
            left: 8px;
            right: 8px;
            height: 40px;
            background: linear-gradient(90deg, rgba(255, 42, 117, 0.15), rgba(157, 78, 221, 0.15));
            border-top: 1px solid rgba(255, 42, 117, 0.4);
            border-bottom: 1px solid rgba(255, 42, 117, 0.4);
            pointer-events: none;
            border-radius: 0.5rem;
        }
        .wheel-column {
            flex: 1;
            height: 100%;
            overflow-y: scroll;
            scroll-snap-type: y mandatory;
            scrollbar-width: none;
            -ms-overflow-style: none;
            text-align: center;
            position: relative;
            padding: 60px 0;
        }
        .wheel-column::-webkit-scrollbar {
            display: none;
        }
        .wheel-item {
            height: 40px;
            line-height: 40px;
            scroll-snap-align: center;
            font-size: 0.95rem;
            color: rgba(216, 180, 254, 0.5);
            cursor: pointer;
            transition: color 0.2s, font-weight 0.2s;
            user-select: none;
        }
        .wheel-item.selected {
            color: #fff;
            font-weight: 600;
            text-shadow: 0 0 10px rgba(255, 42, 117, 0.6);
        }