* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(135deg, #1E1E2D 0%, #2D2D44 100%);
            color: #fff;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            background-color: #fff;
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
            width: 100%;
            max-width: 420px;
            animation: slideIn 0.3s ease-out;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .header {
            text-align: center;
            margin-bottom: 30px;
        }

        .header h1 {
            color: #1E1E2D;
            font-size: 28px;
            margin-bottom: 8px;
        }

        .header p {
            color: #666;
            font-size: 14px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        label {
            display: block;
            margin-bottom: 8px;
            color: #333;
            font-weight: 500;
            font-size: 14px;
        }

        input[type="email"] {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e0e0e0;
            border-radius: 6px;
            font-size: 16px;
            transition: all 0.3s ease;
            background-color: #f8f9fa;
        }

        input[type="email"]:focus {
            outline: none;
            border-color: #ffd600;
            background-color: #fff;
            box-shadow: 0 0 0 3px rgba(255, 214, 0, 0.1);
        }

        button[type="submit"] {
            width: 100%;
            padding: 14px;
            background: linear-gradient(135deg, #ffd600 0%, #ffed4e 100%);
            color: #000;
            border: none;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        button[type="submit"]:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 214, 0, 0.4);
        }

        button[type="submit"]:active {
            transform: translateY(0);
        }

        button[type="submit"]:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }

        .alert {
            padding: 12px 16px;
            border-radius: 6px;
            margin-bottom: 20px;
            font-size: 14px;
            line-height: 1.5;
        }

        .alert-error {
            background-color: #fee;
            border-left: 4px solid #dc3545;
            color: #721c24;
        }

        .alert-success {
            background-color: #d4edda;
            border-left: 4px solid #28a745;
            color: #155724;
        }

        .back-link {
            text-align: center;
            margin-top: 20px;
        }

        .back-link a {
            color: #007bff;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .back-link a:hover {
            color: #0056b3;
            text-decoration: underline;
        }

        .security-info {
            background-color: #f8f9fa;
            border-left: 4px solid #17a2b8;
            padding: 12px;
            margin-top: 20px;
            border-radius: 4px;
        }

        .security-info p {
            color: #666;
            font-size: 13px;
            margin: 4px 0;
        }

        .security-info strong {
            color: #333;
        }

        @media (max-width: 480px) {
            .container {
                padding: 30px 20px;
            }

            .header h1 {
                font-size: 24px;
            }

            input[type="email"],
            button[type="submit"] {
                font-size: 14px;
            }
        }

        .loading {
            display: inline-block;
            width: 14px;
            height: 14px;
            border: 2px solid #000;
            border-radius: 50%;
            border-top-color: transparent;
            animation: spin 0.6s linear infinite;
            margin-left: 8px;
            vertical-align: middle;
        }

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