body {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .form-container {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
        }

        .form-header {
            text-align: center;
            padding-bottom: 20px;
            border-bottom: 3px solid #667eea;
            margin-bottom: 30px;
        }

        .form-header h1 {
            color: #2d3748;
            font-size: 28px;
        }

        .form-header .subtitle {
            color: #718096;
            font-size: 14px;
        }

        .section-card {
            background: #f7fafc;
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 25px;
            border: 1px solid #e2e8f0;
        }

        .section-card .section-title {
            color: #2d3748;
            font-size: 18px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #667eea;
        }

        .required-star {
            color: #e53e3e;
        }

        .signature-preview {
            margin-top: 10px;
            padding: 15px;
            border: 2px dashed #e2e8f0;
            border-radius: 8px;
            text-align: center;
            min-height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #f7fafc;
        }

        .signature-preview img {
            max-height: 80px;
            max-width: 100%;
        }

        .signature-preview .placeholder {
            color: #a0aec0;
            font-size: 14px;
        }

        .commitment-box {
            background: #edf2f7;
            padding: 20px;
            border-radius: 8px;
            border-right: 4px solid #667eea;
        }

        .commitment-box ul {
            list-style: none;
            padding: 0;
        }

        .commitment-box ul li {
            padding: 8px 0;
            border-bottom: 1px solid #e2e8f0;
        }

        .commitment-box ul li:last-child {
            border-bottom: none;
        }

        .btn-submit {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 12px 40px;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
            color: white;
        }

        .btn-reset {
            background: #e2e8f0;
            color: #2d3748;
            padding: 12px 40px;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
        }

        .btn-reset:hover {
            background: #cbd5e0;
        }

        .radio-group label {
            margin-left: 20px;
            cursor: pointer;
        }

        .radio-group input[type="radio"] {
            margin-left: 5px;
        }

        .note {
            color: #718096;
            font-size: 13px;
            margin-bottom: 15px;
            background: #edf2f7;
            padding: 10px;
            border-radius: 6px;
        }

        .date-hint {
            font-size: 12px;
            color: #718096;
            margin-top: 3px;
        }

        .form-control::placeholder {
            color: #a0aec0;
            font-size: 13px;
        }

        .file-upload-input {
            transition: all 0.3s;
        }

        .file-upload-input:focus {
            border-color: #007bff;
            box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, .25);
        }

        .upload-status {
            display: block;
            margin-top: 5px;
            font-size: 0.85rem;
            min-height: 20px;
        }

        .upload-progress {
            margin-top: 8px;
        }

        .progress {
            height: 6px;
            border-radius: 3px;
        }

        .progress-bar {
            transition: width 0.3s ease;
        }

        .btn-submit:disabled {
            opacity: 0.7;
            cursor: not-allowed;
        }

        .field-filled {
            border-color: #28a745 !important;
            background-color: #f0fff4 !important;
            box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.15) !important;
            transition: all 0.3s ease;
        }

        /* استایل دکمه تست */
        .btn-test {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
            font-size: 14px;
        }

        .btn-test:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
        }

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

        /* استایل وضعیت آپلود */
        .upload-status {
            display: block;
            margin-top: 5px;
            font-size: 0.8rem;
            min-height: 20px;
        }

        /* Toast */
        .toast {
            font-family: 'Tahoma', sans-serif;
        }

        /* انیمیشن هایلایت */
        @keyframes highlightPulse {
            0%, 100% {
                box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.15);
            }
            50% {
                box-shadow: 0 0 0 0.4rem rgba(40, 167, 69, 0.3);
            }
        }

        .field-filled:focus {
            animation: highlightPulse 1.5s ease-in-out infinite;
        }

        @media (max-width: 576px) {
            .form-container {
                padding: 15px;
            }

            .form-header h1 {
                font-size: 20px;
            }

            .section-card {
                padding: 15px;
            }

            .btn-submit, .btn-reset {
                width: 100%;
            }

            .radio-group label {
                display: block;
                margin-bottom: 5px;
            }
        }