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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            padding: 20px;
            color: #333;
        }

        .container {
            max-width: 800px;
            margin: 0 auto;
            background: white;
            border-radius: 10px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }

        .header {
    background: linear-gradient(288deg, #1a4d6d 0%, #ffffff 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

        .header img {
            max-width: 300px;
            height: auto;
            margin-bottom: 0px;
        }

        .header h1 {
            font-size: 28px;
            margin-bottom: 15px;
            font-weight: 600;
        }

        .language-selector {
            position: absolute;
            top: 20px;
            right: 20px;
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: flex-end;
        }

        .lang-btn {
            padding: 8px 12px;
            background: white;
            border: 2px solid #1a4d6d;
            color: #1a4d6d;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s;
            text-decoration: none;
            font-size: 12px;
        }

        .lang-btn.active {
            background: #1a4d6d;
            color: white;
        }

        .lang-btn:hover {
            background: #1a4d6d;
            color: white;
        }

        .content {
            padding: 40px 30px;
        }

        .intro-text {
            margin-bottom: 30px;
            line-height: 1.7;
            color: #555;
        }

        .intro-text p {
            margin-bottom: 12px;
        }

        .intro-text .signature {
            font-weight: 600;
            margin-top: 15px;
        }

        .info-box {
            background: #f0f4f8;
            border-left: 4px solid #2d7a9e;
            padding: 15px;
            margin: 25px 0;
            border-radius: 5px;
            font-size: 13px;
            color: #666;
        }

        .form-group {
            margin-bottom: 25px;
        }

        .form-group.hidden {
            display: none;
        }

        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #333;
            font-size: 14px;
        }

        label .required {
            color: #e74c3c;
            margin-left: 2px;
        }

        input[type="text"],
        input[type="email"],
        input[type="tel"],
        input[type="number"],
        select,
        textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 14px;
            font-family: inherit;
            transition: border-color 0.3s;
        }

        input[type="text"]:focus,
        input[type="email"]:focus,
        input[type="tel"]:focus,
        input[type="number"]:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: #2d7a9e;
            box-shadow: 0 0 0 3px rgba(45, 122, 158, 0.1);
        }

        textarea {
            resize: vertical;
            min-height: 100px;
        }

        .checkbox-group {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .checkbox-item {
            display: flex;
            align-items: center;
        }

        .checkbox-item input[type="checkbox"] {
            width: 20px;
            height: 20px;
            margin-right: 10px;
            cursor: pointer;
            accent-color: #2d7a9e;
        }

        .checkbox-item label {
            margin: 0;
            font-weight: normal;
            cursor: pointer;
        }

        .error-message {
            color: #e74c3c;
            font-size: 12px;
            margin-top: 5px;
            display: none;
        }

        .form-group.error input,
        .form-group.error select,
        .form-group.error textarea {
            border-color: #e74c3c;
            background-color: #fdf8f8;
        }

        .form-group.error .error-message {
            display: block;
        }

        .submit-btn {
            background: linear-gradient(135deg, #1a4d6d 0%, #2d7a9e 100%);
            color: white;
            padding: 14px 40px;
            border: none;
            border-radius: 5px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            width: 100%;
            transition: all 0.3s;
            margin-top: 20px;
        }

        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 20px rgba(45, 122, 158, 0.3);
        }

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

        .submit-btn.disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }

        .footer {
            background: #f8f9fa;
            padding: 25px 30px;
            border-top: 1px solid #eee;
            font-size: 12px;
            color: #666;
            line-height: 1.6;
        }

        .footer-text {
            margin-bottom: 12px;
        }

        .footer-links {
            margin-top: 12px;
        }

        .footer-links a {
            color: #2d7a9e;
            text-decoration: none;
            margin-right: 20px;
            transition: color 0.3s;
        }

        .footer-links a:hover {
            color: #1a4d6d;
            text-decoration: underline;
        }

        .success-message {
            display: none;
            background: #d4edda;
            color: #155724;
            padding: 15px;
            border-radius: 5px;
            margin-bottom: 20px;
            border-left: 4px solid #28a745;
        }

        .success-message.show {
            display: block;
        }

        .loading {
            display: none;
            text-align: center;
            color: #2d7a9e;
            margin: 20px 0;
        }

        .loading.show {
            display: block;
        }

        @media (max-width: 600px) {
            .header {
                padding: 30px 20px;
            }

            .header h1 {
                font-size: 22px;
            }

            .content {
                padding: 25px 20px;
            }

            .language-selector {
                position: static;
                justify-content: center;
                margin-bottom: 20px;
            }

            .lang-btn {
                padding: 6px 10px;
                font-size: 11px;
            }
        }