* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }

        body {
            background: #ffffff;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .container {
            max-width: 800px;
            width: 100%;
            padding: 30px;
            margin: 0 auto;
        }

        .form-wrapper {
            background: #f8f8f8;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            border: 1px solid #e0e0e0;
            position: relative;
        }

        .form-logo {
            display: block;
            margin: 0 auto 24px;
            max-width: 180px;
            height: auto;
            transition: transform 0.3s ease;
        }

        .form-logo:hover {
            transform: scale(1.05);
        }

        .description {
            text-align: center;
            font-size: 1.1em;
            color: #4a4a4a;
            margin-bottom: 30px;
            line-height: 1.6;
            max-width: 90%;
            margin-left: auto;
            margin-right: auto;
        }

        .input-group {
            position: relative;
            margin-bottom: 25px;
        }

        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            background: #ffffff;
            border: 1px solid #d0d0d0;
            border-radius: 8px;
            color: #1a1a1a;
            font-size: 1em;
            transition: all 0.3s ease;
        }

        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #1a1a1a;
            box-shadow: 0 0 8px rgba(0, 0, 0, 0.15);
            background: #f9f9f9;
        }

        input:invalid:not(:placeholder-shown), textarea:invalid:not(:placeholder-shown), select:invalid:not(:placeholder-shown) {
            border-color: #e63946;
            box-shadow: 0 0 8px rgba(230, 57, 70, 0.1);
        }

        textarea {
            min-height: 120px;
            resize: vertical;
        }

        select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%231a1a1a' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 15px center;
        }

        label {
            position: absolute;
            top: -10px;
            left: 15px;
            background: #f8f8f8;
            padding: 0 8px;
            color: #1a1a1a;
            font-size: 0.9em;
            font-weight: 500;
            transition: all 0.3s ease;
            pointer-events: none;
        }

        .error-message {
            color: #e63946;
            font-size: 0.85em;
            position: absolute;
            bottom: -20px;
            left: 15px;
            display: none;
        }

        .submit-btn {
            width: 100%;
            padding: 14px;
            background: #1a1a1a;
            border: none;
            border-radius: 8px;
            color: #ffffff;
            font-size: 1.1em;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .submit-btn:hover {
            background: #333333;
            box-shadow: 0 0 12px rgba(0, 0, 0, 0.2);
            transform: translateY(-2px);
        }

        .submit-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .loader {
            border: 3px solid #ffffff;
            border-top: 3px solid #1a1a1a;
            border-radius: 50%;
            width: 24px;
            height: 24px;
            animation: spin 1s linear infinite;
            margin-left: 10px;
        }

        .loader.hidden {
            display: none;
        }

        .btn-text.hidden {
            display: none;
        }

        .social-links {
            text-align: center;
            margin-top: 25px;
        }

        .social-links a {
            color: #1a1a1a;
            font-size: 1.6em;
            margin: 0 12px;
            transition: all 0.3s ease;
        }

        .social-links a:hover {
            color: #4a4a4a;
            transform: scale(1.15);
        }

        .popup {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.75);
            display: none;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            animation: fadeIn 0.3s ease-out;
        }

        .popup-content {
            background: #ffffff;
            padding: 30px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
            animation: popupAnim 0.4s ease-out;
            width: 90%;
            max-width: 500px;
        }

        .popup-icon {
            font-size: 2.8em;
            margin-bottom: 15px;
            display: block;
            color: #1a1a1a;
        }

        .popup-content h2 {
            color: #1a1a1a;
            margin-bottom: 15px;
            font-size: 1.9em;
            font-weight: 600;
        }

        .popup-content p {
            color: #4a4a4a;
            margin-bottom: 20px;
            font-size: 1em;
            line-height: 1.5;
        }

        .popup-content button {
            padding: 10px 25px;
            background: #1a1a1a;
            border: none;
            border-radius: 8px;
            color: #ffffff;
            cursor: pointer;
            font-weight: 600;
            font-size: 1em;
            transition: all 0.3s ease;
        }

        .popup-content button:hover {
            background: #333333;
            transform: translateY(-2px);
        }

        /* Animations */
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

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

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Tablet */
        @media screen and (max-width: 768px) {
            .container {
                width: 90%;
                padding: 20px;
            }

            .form-wrapper {
                padding: 30px;
            }

            .form-logo {
                max-width: 160px;
            }

            .description {
                font-size: 1em;
            }

            .popup-content {
                width: 85%;
                padding: 25px;
            }
        }

        /* Mobile */
        @media screen and (max-width: 480px) {
            .container {
                width: 95%;
                padding: 15px;
            }

            .form-wrapper {
                padding: 20px;
                border-radius: 10px;
            }

            .form-logo {
                max-width: 140px;
                margin-bottom: 16px;
            }

            .description {
                font-size: 0.95em;
            }

            input, textarea, select {
                padding: 10px;
                font-size: 0.9em;
            }

            label {
                font-size: 0.85em;
            }

            .submit-btn {
                padding: 12px;
                font-size: 1em;
            }

            .popup-content {
                width: 90%;
                padding: 20px;
            }

            .popup-content h2 {
                font-size: 1.6em;
            }

            .popup-content p {
                font-size: 0.95em;
            }
        }