.luxury-rsvp-container * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        .luxury-rsvp-wrapper {
            font-family: 'Helvetica Neue', Arial, sans-serif;
            background: #f7f5f3;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 40px 20px;
            color: #463c32;
        }

        .luxury-rsvp-container {
            background: #fefcfa;
            box-shadow: 0 0 60px rgba(80, 69, 58, 0.12);
            overflow: hidden;
            max-width: 1200px;
            width: 100%;
            display: grid;
            grid-template-columns: 400px 1fr;
            min-height: 650px;
        }

        .luxury-left-panel {
            background: #574839;
            padding: 80px 50px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            color: #f7f5f3;
            position: relative;
        }

        .luxury-brand {
            color: #d4c4b0;
            font-size: 10px;
            font-weight: 300;
            letter-spacing: 3px;
            margin-bottom: 60px;
            text-transform: uppercase;
            opacity: 0.8;
        }

        .luxury-invitation-text {
            font-size: 14px;
            font-weight: 300;
            margin-bottom: 40px;
            line-height: 1.6;
            letter-spacing: 0.5px;
            opacity: 0.9;
        }

        .luxury-couple-names {
            font-family: 'Didot', serif;
            font-size: 2.8rem;
            font-weight: 400;
            margin-bottom: 30px;
            line-height: 1.1;
            letter-spacing: 1px;
        }

        .luxury-wedding-date {
            font-size: 11px;
            letter-spacing: 2px;
            text-transform: uppercase;
            font-weight: 300;
            opacity: 0.8;
        }

        .luxury-right-panel {
            padding: 80px 70px;
            background: #fefcfa;
        }

        .luxury-form-header {
            margin-bottom: 50px;
            border-bottom: 1px solid #e8e0d8;
            padding-bottom: 30px;
        }

        .luxury-form-title {
            font-family: 'Didot', serif;
            font-size: 2rem;
            font-weight: 400;
            color: #2a2520;
            margin-bottom: 8px;
            letter-spacing: 2px;
        }

        .luxury-form-subtitle {
            color: #8a7f72;
            font-size: 12px;
            font-weight: 300;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .luxury-form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-bottom: 35px;
        }

        .luxury-form-group {
            margin-bottom: 35px;
        }

        .luxury-form-group.full-width {
            grid-column: 1 / -1;
        }

        .luxury-label {
            display: block;
            margin-bottom: 15px;
            color: #2a2520;
            font-weight: 400;
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
        }

        .luxury-input,
        .luxury-select,
        .luxury-textarea {
            width: 100%;
            padding: 18px 0;
            border: none;
            border-bottom: 1px solid #e8e0d8;
            background: transparent;
            font-family: 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px;
            font-weight: 300;
            color: #2a2520;
            transition: all 0.3s ease;
        }

        .luxury-input:focus,
        .luxury-select:focus,
        .luxury-textarea:focus {
            outline: none;
            border-bottom-color: #2a2520;
        }

        .luxury-input::placeholder,
        .luxury-textarea::placeholder {
            color: #c4b8a8;
            font-weight: 300;
        }

        .luxury-radio-group {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 25px;
            margin-top: 20px;
        }

        .luxury-radio-option {
            position: relative;
            cursor: pointer;
        }

        .luxury-radio-option input[type="radio"] {
            opacity: 0;
            position: absolute;
        }

        .luxury-radio-label {
            display: block;
            padding: 25px 0;
            border: 1px solid #e8e0d8;
            background: transparent;
            transition: all 0.3s ease;
            cursor: pointer;
            text-align: center;
            font-weight: 300;
            margin: 0;
            text-transform: uppercase;
            letter-spacing: 1px;
            font-size: 12px;
        }

        .luxury-radio-option:hover .luxury-radio-label {
            border-color: #2a2520;
        }

        .luxury-radio-option input:checked + .luxury-radio-label {
            background: #2a2520;
            color: #f7f5f3;
            border-color: #2a2520;
        }

        .luxury-select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%232a2520' stroke-linecap='round' stroke-linejoin='round' stroke-width='1' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
            background-position: right 0 center;
            background-repeat: no-repeat;
            background-size: 16px;
            cursor: pointer;
        }

        .luxury-textarea {
            resize: vertical;
            min-height: 120px;
            border-bottom: 1px solid #e8e0d8;
        }

        .luxury-submit-btn {
            width: 100%;
            background: #574839;
            color: #f7f5f3;
            border: none;
            padding: 20px;
            font-family: 'Helvetica Neue', Arial, sans-serif;
            font-size: 11px;
            font-weight: 400;
            cursor: pointer;
            transition: all 0.3s ease;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-top: 40px;
        }

        .luxury-submit-btn:hover {
            background: #3d342d;
        }

        .luxury-success-message {
            display: none;
            background: #f5f2ef;
            color: #574839;
            padding: 40px;
            border: 1px solid #e8e0d8;
            text-align: center;
            margin-top: 30px;
            font-weight: 300;
        }

        .luxury-success-message h3 {
            font-family: 'Didot', serif;
            font-size: 1.5rem;
            font-weight: 400;
            margin-bottom: 15px;
            letter-spacing: 1px;
        }

        .luxury-success-message p {
            font-size: 14px;
            letter-spacing: 0.5px;
            line-height: 1.6;
        }

        .luxury-checkbox-group {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-top: 30px;
            padding: 25px 0;
            border-top: 1px solid #e8e0d8;
        }

        .luxury-checkbox-group input[type="checkbox"] {
            width: 16px;
            height: 16px;
            accent-color: #2a2520;
            margin-top: 2px;
        }

        .luxury-checkbox-label {
            margin: 0;
            text-transform: none;
            letter-spacing: 0.5px;
            font-weight: 300;
            color: #8a7f72;
            font-size: 12px;
            line-height: 1.5;
        }

        .luxury-divider {
            width: 30px;
            height: 1px;
            background: #d4c4b0;
            margin: 25px 0;
            opacity: 0.6;
        }

        .luxury-hidden {
            display: none;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .luxury-rsvp-container {
                max-width: 900px;
                grid-template-columns: 350px 1fr;
            }

            .luxury-left-panel {
                padding: 60px 40px;
            }

            .luxury-right-panel {
                padding: 60px 50px;
            }
        }

        @media (max-width: 768px) {
            .luxury-rsvp-wrapper {
                padding: 20px;
            }
            
            .luxury-rsvp-container {
                grid-template-columns: 1fr;
                max-width: 500px;
            }

            .luxury-left-panel {
                padding: 40px 30px;
                text-align: center;
            }

            .luxury-couple-names {
                font-size: 2.5rem;
            }

            .luxury-right-panel {
                padding: 40px 30px;
            }

            .luxury-form-row {
                grid-template-columns: 1fr;
                gap: 25px;
            }

            .luxury-radio-group {
                grid-template-columns: 1fr;
            }
        }