body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(135deg, #e0e7ff 0%, #f3e8ff 100%);
        }
        .container {
            width: 50%;
        }
        .email-spinner {
            @apply flex items-center justify-center bg-white bg-opacity-90 transition-opacity pointer-events-none z-10;
        }
        .modal, .popup {
            @apply hidden fixed inset-0 bg-black bg-opacity-60 z-20 flex items-center justify-center;
        }
        .modal-content, .popup-content {
            @apply bg-white p-4 rounded-lg shadow-lg text-center w-11/12 max-w-md overflow-y-auto max-h-[80vh] relative;
        }
        .close-btn {
            @apply absolute top-2 right-2 text-gray-500 hover:text-gray-800 cursor-pointer text-xl;
        }
        .copy-notification {
            @apply fixed bg-green-500 text-white px-3 py-1 rounded text-base shadow-md z-30;
        }
        @keyframes spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        #emailList {
            border-collapse: collapse;
            width: 100%;
            font-family: Arial, sans-serif;
            border: 1px solid #444;
            box-shadow: 0 3px 10px rgba(0,0,0,0.15);
            border-radius: 6px;
            overflow: hidden;
        }
        #emailList th {
            background-color: #2d3748;
            color: #fff;
            font-weight: bold;
            text-align: left;
            padding: 10px;
        }
        #emailList td {
            padding: 10px;
            color: #333;
            background-color: #fff;
        }
        #emailList tr {
            border-bottom: 1px solid #999;
        }
        #emailList tr:last-child {
            border-bottom: none;
        }
        #emailList tr:hover td {
            background-color: #f1f1f1;
            transition: background-color 0.2s;
        }
        .copy-notification {
            position: absolute;
            background: linear-gradient(to right, #16a34a, #22c55e);
            color: white;
            padding: 6px 12px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
            z-index: 9999;
            opacity: 0;
            transform: scale(0.9);
            transition: opacity 0.2s ease, transform 0.2s ease;
        }
        .copy-notification.show {
            opacity: 1;
            transform: scale(1);
        }
        .navbar {
            background: linear-gradient(to right, #4b6cb7, #182848);
        }
        header {
            background: linear-gradient(to right, #fafafa, #f4f7fb);
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            box-shadow: 0 2px 6px rgba(59, 130, 246, 0.08);
            transition: 0.2s;
        }
        header:hover {
            box-shadow: 0 4px 10px rgba(59, 130, 246, 0.12);
        }
        #emailList {
            border: 1px solid #d1d5db;
            border-radius: 6px;
            background-color: #ffffff;
            box-shadow: 0 2px 6px rgba(0,0,0,0.05);
        }
        .bg-white.shadow.rounded-lg {
            border: 1px solid #c7eadc;
            box-shadow: 0 2px 8px rgba(16, 185, 129, 0.08);
            transition: 0.2s;
        }
        .bg-white.shadow.rounded-lg:hover {
            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
        }
        #emailUsernameInput {
            border-right: 1px solid rgba(0, 0, 0, 0.1);
        }
        #emailDomainSelect {
            border-left: 1px solid rgba(0, 0, 0, 0.1);
        }
        .footer {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(to right, #1e293b, #0f172a);
            color: #f1f5f9;
            font-size: 14px;
            z-index: 50;
        }