/* --- RESET & BASIC SETUP --- */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Roboto', 'f Neue', sans-serif;
        }

        body {
            /* Màu nền tổng thể xám nhạt giống ảnh */
            background-color: #E6E6E6;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
            overflow-x: hidden;
            position: relative;
            max-width: 100vw;
        }

        html {
            overflow-x: hidden;
            max-width: 100vw;
        }

        /* --- BACKGROUND IMAGE CONTAINER --- */
        /* Đây là lớp chứa ảnh nền. Ảnh sẽ SẮC NÉT, không bị mờ */
        .background-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            /* Nằm dưới cùng */
            overflow: hidden;
        }

        /* Ví dụ khối tròn tím giống trong thiết kế gốc */
        /* Tôi tắt filter: blur đi để nó sắc cạnh như bạn yêu cầu */
        .bg-shape-purple {
            position: absolute;
            top: -10%;
            right: -5%;
            width: 600px;
            height: 600px;
            background-color: #6420aa;
            border-radius: 50%;
            /* QUAN TRỌNG: Không dùng filter blur ở đây để viền sắc nét */
        }

        /* Ví dụ khối tròn nhạt góc dưới (nếu cần) */
        .bg-shape-light {
            position: absolute;
            bottom: -5%;
            left: -5%;
            width: 300px;
            height: 300px;
            background: linear-gradient(135deg, #E0C3FC 0%, #8EC5FC 100%);
            border-radius: 50%;
            opacity: 0.8;
        }

        /* NẾU BẠN MUỐN DÙNG ẢNH CHỤP THẬT LÀM NỀN */
        /* Bỏ comment đoạn dưới đây và thay src trong HTML */
        .bg-image-real {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            /* Đảm bảo ảnh phủ kín màn hình */
            display: none;
            /* Hiện tại đang ẩn, bật lên nếu dùng ảnh thật */
        }

        /* --- ANIMATIONS --- */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
            }

            to {
                opacity: 1;
            }
        }

        @keyframes scaleIn {
            from {
                opacity: 0;
                transform: scale(0.95);
            }

            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        /* Initial states - ẩn các phần tử trước khi animate */
        .glass-card {
            opacity: 0;
        }

        .glass-card.animate {
            animation: scaleIn 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
        }

        .header {
            opacity: 0;
        }

        .header.animate {
            animation: fadeInUp 0.6s ease-out 0.3s forwards;
        }

        .title-group {
            opacity: 0;
        }

        .title-group.animate {
            animation: fadeInUp 0.6s ease-out 0.5s forwards;
        }

        .divider-line {
            opacity: 0;
            transform: scaleX(0);
            transform-origin: left;
        }

        .divider-line.animate {
            animation: fadeIn 0.4s ease-out 0.7s forwards;
            transform: scaleX(1);
            transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.7s;
        }

        .subtitle-en {
            opacity: 0;
        }

        .subtitle-en.animate {
            animation: fadeInUp 0.6s ease-out 0.9s forwards;
        }

        .icon-row {
            opacity: 0;
        }

        .icon-row.animate {
            animation: fadeInUp 0.6s ease-out 1.1s forwards;
        }

        .contact-row {
            opacity: 0;
        }

        .contact-row.animate {
            animation: fadeInUp 0.6s ease-out 1.3s forwards;
        }

        .contact-card {
            opacity: 0;
        }

        .contact-card:nth-child(1).animate {
            animation: fadeInUp 0.5s ease-out 1.4s forwards;
        }

        .contact-card:nth-child(2).animate {
            animation: fadeInUp 0.5s ease-out 1.6s forwards;
        }

        .contact-card:nth-child(3).animate {
            animation: fadeInUp 0.5s ease-out 1.8s forwards;
        }


        /* --- GLASS CARD MAIN --- */
        .glass-card {
            width: 100%;
            max-width: 850px;
            min-height: 500px;

            /* Tinh chỉnh lại màu nền kính */
            background: rgba(255, 255, 255, 0.65);
            /* Giảm độ đục một chút để thấy background rõ hơn */

            /* HIỆU ỨNG KÍNH QUAN TRỌNG NHẤT */
            /* Chỉ làm mờ những gì nằm SAU nó (backdrop) */
            backdrop-filter: blur(35px);
            -webkit-backdrop-filter: blur(35px);

            border: 2px solid rgba(255, 255, 255, 0.8);
            /* Viền trắng rõ hơn */
            box-shadow:
                0 15px 35px rgba(0, 0, 0, 0.05),
                /* Bóng đổ mềm */
                inset 0 0 20px rgba(255, 255, 255, 0.5);
            /* Hiệu ứng sáng bên trong */

            border-radius: 35px;
            padding: 60px;
            position: relative;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        /* --- DECORATION INSIDE CARD --- */
        /* Đốm tím mờ ảo BÊN TRONG thẻ (như góc phải trên của thiết kế) */
        .card-inner-blur {
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: #6420aa;
            border-radius: 50%;
            filter: blur(70px);
            /* Cái này nằm trong thẻ nên cần blur để tạo độ sâu */
            opacity: 0.35;
            z-index: -1;
            pointer-events: none;
        }

        /* --- HEADER --- */
        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            font-weight: 500;
        }

        .date-badge {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #666;
            font-size: 0.95rem;
        }

        .logo-header {
            height: 60px;
            width: auto;
            object-fit: contain;
            filter: brightness(0) saturate(100%) invert(20%) sepia(80%) saturate(2000%) hue-rotate(260deg) brightness(80%) contrast(120%);
        }

        .arrow-icon {
            color: #8855cc;
            font-size: 1rem;
            letter-spacing: -2px;
        }

        .category-tag {
            font-size: 0.9rem;
            color: #fff;
            letter-spacing: 1px;
            font-weight: 600;
            text-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
        }

        /* --- CONTENT TYPOGRAPHY --- */
        .content {
            z-index: 1;
        }

        .title-group h1 {
            font-size: 2.8rem;
            color: #333;
            line-height: 1.1;
            font-weight: 700;
            margin-bottom: 5px;
            letter-spacing: -1px;
        }

        /* --- NAME AND TITLE STYLING - CLEAN & PROMINENT --- */
        .content h1 {
            font-size: 2.2rem;
            font-weight: 700;
            margin: 0 0 10px 0;
            color: #6420aa;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            font-family: 'Segoe UI', 'Helvetica Neue', sans-serif;
        }

        .title-group {
            margin-bottom: 30px;
            text-align: left;
        }

        .highlight-ui {
            color: #6420aa;
            font-style: normal;
            font-weight: 700;
            letter-spacing: 0.8px;
        }

        .subtitle-cn {
            font-size: 1.3rem;
            color: #6420aa;
            font-weight: 500;
            margin-bottom: 25px;
            letter-spacing: -0.3px;
            line-height: 1.2;
            font-family: 'Segoe UI', 'Helvetica Neue', sans-serif;
            position: relative;
            padding-bottom: 18px;
        }

        .subtitle-cn::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, #6420aa 0%, #8855cc 100%);
            border-radius: 2px;
        }

        .divider-line {
            width: 120px;
            height: 3px;
            background-color: #D1D1D6;
            /* Màu xám thanh gạch */
            margin-bottom: 15px;
        }

        .subtitle-en {
            font-size: 0.9rem;
            color: #888;
            font-style: italic;
            letter-spacing: 1.5px;
            font-weight: 500;
            margin-bottom: 30px;
            text-transform: uppercase;
        }

        /* --- LANGUAGE & SHARE ACTIONS --- */
        .language-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 15px;
            margin: 0;
        }

        .language-selector {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .lang-flag {
            width: 28px;
            height: 20px;
            border-radius: 3px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 2px solid transparent;
            object-fit: cover;
        }

        .lang-flag:hover {
            transform: scale(1.05);
            border-color: #6420aa;
        }

        .lang-flag.active {
            border-color: #6420aa;
            box-shadow: 0 0 0 2px rgba(100, 32, 170, 0.2);
        }

        .share-btn {
            background: linear-gradient(135deg, #6420aa 0%, #8855cc 100%);
            color: white;
            border: none;
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 3px 10px rgba(100, 32, 170, 0.3);
        }

        .share-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(100, 32, 170, 0.4);
        }

        .share-btn:active {
            transform: translateY(0);
        }

        .share-icon {
            width: 28px;
            height: 28px;
            cursor: pointer;
            transition: transform 0.2s ease;
            filter: brightness(0) saturate(100%) invert(20%) sepia(60%) saturate(1500%) hue-rotate(260deg) brightness(90%);
        }

        .share-icon:hover {
            transform: scale(1.15);
        }

        /* Mobile Dropdown */
        .lang-dropdown {
            display: none;
            position: relative;
        }

        .lang-dropdown-btn {
            display: flex;
            align-items: center;
            gap: 5px;
            padding: 4px 8px;
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid #ddd;
            border-radius: 4px;
            cursor: pointer;
            font-size: 0.75rem;
        }

        .lang-dropdown-btn img {
            width: 20px;
            height: 14px;
            border-radius: 2px;
        }

        .lang-dropdown-menu {
            display: none;
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 5px;
            background: white;
            border: 1px solid #ddd;
            border-radius: 6px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            z-index: 1000;
            min-width: 120px;
        }

        .lang-dropdown-menu.show {
            display: block;
        }

        .lang-option {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 12px;
            cursor: pointer;
            transition: background 0.2s;
        }

        .lang-option:hover {
            background: #f5f5f5;
        }

        .lang-option img {
            width: 20px;
            height: 14px;
            border-radius: 2px;
        }

        .lang-option span {
            font-size: 0.85rem;
            color: #333;
        }

        /* --- ICONS ROW --- */
        .icon-row {
            display: flex;
            gap: 20px;
            margin-bottom: 35px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .app-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            justify-content: center;
            align-items: center;
            font-weight: bold;
            font-size: 1.1rem;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
            transition: transform 0.2s;
            background: white;
        }

        .app-icon:hover {
            transform: translateY(-3px);
        }

        .sketch {
            color: #FDAD00;
        }

        .figma {
            color: #0ACF83;
            border: 1px solid #eee;
        }

        .principle {
            color: #8F45D4;
            font-family: serif;
            font-style: italic;
            background: #F3F3F3;
        }

        .ps {
            background: #001E36;
            color: #31A8FF;
            border: 1px solid #31A8FF;
        }

        .ai {
            background: #330000;
            color: #FF9A00;
            border: 1px solid #FF9A00;
        }

        .ae {
            background: #00005B;
            color: #D291FF;
            border: 1px solid #D291FF;
        }

        /* Service Icons */
        .service-icon {
            height: 45px;
            width: 120px;
            object-fit: contain;
            transition: transform 0.2s;
        }

        .service-icon:hover {
            transform: translateY(-3px);
        }

        /* --- CONTACT CARDS ROW --- */
        .contact-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: flex-start;
        }

        .contact-card {
            flex: 1;
            min-width: 200px;
            max-width: 280px;
            padding: 14px 16px;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.7) 0%, rgba(240, 235, 255, 0.6) 100%);
            backdrop-filter: blur(10px);
            border-radius: 12px;
            border: 1px solid rgba(123, 123, 221, 0.2);
            box-shadow: 0 3px 8px rgba(100, 32, 170, 0.08);
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .contact-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(100, 32, 170, 0.18);
            border-color: rgba(123, 123, 221, 0.5);
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.8) 0%, rgba(240, 235, 255, 0.7) 100%);
        }

        .contact-card-icon {
            width: 40px;
            height: 40px;
            min-width: 40px;
            background: linear-gradient(135deg, rgba(100, 32, 170, 0.08) 0%, rgba(136, 85, 204, 0.12) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 6px rgba(100, 32, 170, 0.1);
        }

        .contact-card-icon img {
            width: 24px;
            height: 24px;
            object-fit: contain;
            filter: brightness(0) saturate(100%) invert(20%) sepia(60%) saturate(1500%) hue-rotate(260deg) brightness(90%);
        }

        .contact-card-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
            flex: 1;
            min-width: 0;
        }

        .contact-card-label {
            font-size: 0.65rem;
            color: #7B7BDD;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .contact-card-value {
            font-size: 0.85rem;
            color: #333;
            font-weight: 600;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* --- INFO ROW (Website & Address) --- */
        .info-row {
            display: flex;
            gap: 30px;
            margin-top: 25px;
            align-items: center;
        }

        .info-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .info-icon {
            width: 20px;
            height: 20px;
            filter: brightness(0) saturate(100%) invert(25%) sepia(50%) saturate(1200%) hue-rotate(260deg) brightness(85%);
            opacity: 0.7;
        }

        .info-text {
            font-size: 0.85rem;
            color: #6420aa;
            font-weight: 500;
            line-height: 20px;
            display: inline-block;
            transition: color 0.3s ease;
        }

        .info-text:hover {
            color: #8855cc;
        }


        /* Mobile Dropdown Logic */
        .mobile-lang-dropdown {
            display: none;
            /* Hidden on Desktop */
            position: relative;
        }

        .desktop-lang-selector {
            display: flex;
            /* Visible on Desktop */
            gap: 10px;
            align-items: center;
        }

        /* --- RESPONSIVE --- */
        @media (max-width: 768px) {
            .glass-card {
                padding: 30px 20px;
                /* Giảm padding card trên mobile */
                min-height: auto;
            }

            .header {
                margin-bottom: 20px;
                padding-bottom: 15px;
            }

            .logo-header {
                height: 50px;
                /* Giảm size logo trên mobile */
            }

            .desktop-lang-selector {
                display: none;
                /* Hide flags on Mobile */
            }

            .mobile-lang-dropdown {
                display: block;
                /* Show dropdown on Mobile */
            }

            .language-actions {
                gap: 10px;
            }

            .title-group h1 {
                font-size: 2.2rem;
            }

            .subtitle-cn {
                font-size: 1.4rem;
            }


            .bg-shape-purple {
                right: -150px;
            }

            .contact-card {
                min-width: 100%;
                max-width: 100%;
            }

            .info-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
        }

        /* --- TOAST NOTIFICATION --- */
        .toast-notification {
            position: fixed;
            bottom: -100px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(100, 32, 170, 0.95);
            backdrop-filter: blur(10px);
            color: white;
            padding: 16px 32px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 600;
            box-shadow: 0 8px 32px rgba(100, 32, 170, 0.4);
            z-index: 10000;
            transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
            white-space: nowrap;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .toast-notification.show {
            bottom: 30px;
        }

        /* Logo link styling */
        .date-badge a {
            display: inline-block;
            transition: transform 0.2s ease;
        }

        .date-badge a:hover {
            transform: scale(1.05);
        }

        .date-badge a:active {
            transform: scale(0.98);
        }

        /* --- BOTTOM SHEET --- */
        .bottom-sheet-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(4px);
            z-index: 9998;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .bottom-sheet-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .bottom-sheet {
            position: fixed;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%) translateY(100%);
            width: calc(100vw - 40px);
            max-width: 600px;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            border-radius: 24px 24px 0 0;
            z-index: 9999;
            transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
            max-height: 70vh;
            box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.15);
            box-sizing: border-box;
            margin: 0 auto;
        }

        .bottom-sheet.active {
            transform: translateX(-50%) translateY(0);
        }

        .bottom-sheet-header {
            padding: 12px 20px 10px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.08);
            position: relative;
        }

        .bottom-sheet-handle {
            width: 40px;
            height: 4px;
            background: rgba(0, 0, 0, 0.2);
            border-radius: 2px;
            margin: 0 auto 10px;
        }

        .bottom-sheet-title {
            font-size: 1rem;
            font-weight: 700;
            color: #333;
            margin: 0;
            text-align: center;
        }

        .bottom-sheet-content {
            padding: 16px 20px 24px;
            max-height: calc(70vh - 70px);
            overflow-y: auto;
        }

        .bottom-sheet-action {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px;
            background: rgba(100, 32, 170, 0.05);
            border-radius: 14px;
            margin-bottom: 10px;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 1px solid rgba(100, 32, 170, 0.1);
        }

        .bottom-sheet-action:hover {
            background: rgba(100, 32, 170, 0.1);
            transform: translateX(4px);
        }

        .bottom-sheet-action:active {
            transform: scale(0.98);
        }

        .bottom-sheet-action-icon {
            width: 44px;
            height: 44px;
            min-width: 44px;
            background: linear-gradient(135deg, rgba(100, 32, 170, 0.1) 0%, rgba(136, 85, 204, 0.15) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .bottom-sheet-action-icon svg {
            width: 22px;
            height: 22px;
            fill: #6420aa;
        }

        .bottom-sheet-action-content {
            flex: 1;
            min-width: 0;
        }

        .bottom-sheet-action-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #333;
            margin-bottom: 2px;
        }

        .bottom-sheet-action-desc {
            font-size: 0.8rem;
            color: #666;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* WeChat QR specific styles */
        .wechat-qr-container {
            text-align: center;
            padding: 16px 0 20px;
        }

        .wechat-qr-image {
            width: 245px;
            height: 276px;
            border-radius: 16px;
            margin: 0 auto 16px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
            border: 2px solid rgba(100, 32, 170, 0.1);
            display: block;
            object-fit: contain;
        }

        .wechat-id-display {
            font-size: 1rem;
            font-weight: 600;
            color: #6420aa;
            margin-bottom: 20px;
            padding: 10px;
            background: rgba(100, 32, 170, 0.05);
            border-radius: 12px;
        }

        /* Mobile responsive */
        @media (max-width: 768px) {
            .bottom-sheet {
                width: calc(100vw - 20px);
                max-width: 100vw;
                border-radius: 20px 20px 0 0;
            }

            .bottom-sheet-content {
                padding: 14px 16px 20px;
            }

            .bottom-sheet-action {
                padding: 12px;
                gap: 12px;
            }

            .bottom-sheet-action-icon {
                width: 40px;
                height: 40px;
                min-width: 40px;
            }

            .bottom-sheet-action-icon svg {
                width: 20px;
                height: 20px;
            }

            .bottom-sheet-action-title {
                font-size: 0.9rem;
            }

            .bottom-sheet-action-desc {
                font-size: 0.75rem;
            }

            .wechat-qr-image {
                width: 205px;
                height: 231px;
            }
        }

        /* --- LANGUAGE SELECTION OVERLAY --- */
        .lang-selection-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(10px);
            z-index: 10000;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 1;
            visibility: visible;
            transition: all 0.3s ease;
        }

        .lang-selection-overlay.hidden {
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
        }

        .lang-selection-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-radius: 24px;
            padding: 40px;
            max-width: 400px;
            width: 90%;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            text-align: center;
            animation: slideUp 0.4s ease;
        }

        @keyframes slideUp {
            from {
                transform: translateY(30px);
                opacity: 0;
            }

            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        .lang-selection-logo {
            margin-bottom: 30px;
        }

        .selection-logo {
            width: 100px;
            height: auto;
            filter: brightness(0) saturate(100%) invert(20%) sepia(60%) saturate(1500%) hue-rotate(260deg) brightness(90%);
        }

        .lang-selection-buttons {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .lang-select-btn {
            background: rgba(100, 32, 170, 0.05);
            border: 2px solid rgba(100, 32, 170, 0.2);
            border-radius: 16px;
            padding: 16px 20px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 15px;
            font-size: 1rem;
            font-weight: 600;
            color: #333;
        }

        .lang-select-btn:hover {
            background: rgba(100, 32, 170, 0.1);
            border-color: #6420aa;
            transform: translateX(5px);
        }

        .lang-select-btn:active {
            transform: scale(0.98);
        }

        .lang-select-flag {
            width: 32px;
            height: 24px;
            border-radius: 4px;
            object-fit: cover;
        }

        /* --- ADD TO CONTACTS BUTTON --- */
        .add-contact-container {
            margin-top: 25px;
            text-align: center;
        }

        .add-contact-btn {
            background: linear-gradient(135deg, #6420aa 0%, #8855cc 100%);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 50%;
            width: 48px;
            height: 48px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(100, 32, 170, 0.3);
        }

        .add-contact-btn:hover {
            transform: translateY(-2px) scale(1.05);
            box-shadow: 0 6px 20px rgba(100, 32, 170, 0.4);
        }

        .add-contact-btn:active {
            transform: translateY(0) scale(0.98);
        }

        .add-contact-icon {
            width: 24px;
            height: 24px;
            fill: white;
        }