/* Externalisé depuis solicitation-form.html (durcissement CSP style-src) */
        body {
            font-family: 'Inter', sans-serif;
        }

        .form-section {
            background: white;
            border-radius: 0.75rem;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        }

        .section-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: #1f2937;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e5e7eb;
        }

        .required-mark {
            color: #dc2626;
            margin-left: 0.25rem;
        }

        .success-message {
            display: none;
            background-color: #d1fae5;
            border: 2px solid #10b981;
            color: #065f46;
            padding: 1.5rem;
            border-radius: 0.75rem;
            margin: 2rem 0;
        }

        .error-message {
            display: none;
            background-color: #fee2e2;
            border: 2px solid #ef4444;
            color: #991b1b;
            padding: 1rem;
            border-radius: 0.5rem;
            margin-bottom: 1rem;
        }