/* --- CHARTE GRAPHIQUE SELIM AKLIL --- */
        :root {
            --color-brand-orange: #FA8334;
            --color-brand-yellow: #F4B648;
            --color-brand-blue: #02008D; /* Teal */
            --color-brand-green-dark: #8CD7AC; /* Whatsapp Green style */
            --color-gray-50: #f9fafb;
            --color-gray-200: #e5e7eb;
            --color-gray-600: #374151; 
            --color-gray-700: #1f2937; 
            --color-gray-800: #111827; 
            --color-gray-900: #030712; 
            --font-inter: 'Inter', sans-serif;
        }

        body {
            font-family: var(--font-inter);
            background-color: var(--color-gray-50);
            color: var(--color-gray-800);
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3, h4 {
            color: var(--color-gray-900);
            letter-spacing: -0.025em;
        }

        /* Navigation Style */
        .nav-brand {
            font-weight: 800;
            color: var(--color-gray-900);
            font-size: 1.1rem; /* Slightly smaller on mobile default */
            text-decoration: none;
            transition: color 0.2s;
            white-space: nowrap;
        }
        @media (min-width: 640px) {
            .nav-brand { font-size: 1.25rem; }
        }
        .nav-brand:hover {
            color: var(--color-brand-blue);
        }
        
        .nav-link {
            font-weight: 600;
            color: var(--color-gray-600);
            transition: color 0.2s;
            font-size: 0.875rem;
        }
        .nav-link:hover {
            color: var(--color-brand-blue);
        }

        .nav-icon {
            color: var(--color-brand-blue);
        }

        /* Inputs Customization */
        .custom-input {
            border-color: var(--color-gray-200);
            transition: all 0.2s;
        }
        .custom-input:focus {
            border-color: var(--color-brand-blue);
            ring: 2px solid var(--color-brand-blue);
            outline: none;
            box-shadow: 0 0 0 1px var(--color-brand-blue);
        }

        /* Card Style (Based on Testimonials) */
        .result-card {
            background-color: white;
            border-radius: 1rem;
            border: 1px solid var(--color-gray-200);
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
            transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
        }
        .result-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
            border-color: var(--color-brand-blue);
        }

        /* Buttons */
        .btn-primary {
            background-color: var(--color-brand-blue);
            color: white;
            font-weight: 700;
            border-radius: 9999px;
            transition: all 0.2s;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
        }
        .btn-primary:hover {
            background-color: #3aa89e;
            transform: translateY(-1px);
        }

        .btn-copy {
            color: var(--color-gray-600);
            border-radius: 0.5rem;
            transition: all 0.2s;
        }
        .btn-copy:hover {
            color: var(--color-brand-orange);
            background-color: #fff7ed;
        }

        /* Utility specific to methodology */
        .method-btn {
            color: var(--color-gray-600);
            font-weight: 600;
        }
        .method-btn:hover {
            color: var(--color-brand-blue);
        }

        /* Footer specific */
        .footer-content { display: flex; flex-direction: column; gap: 1rem; text-align: center; }
        .footer-link { color: #02008D; font-weight: 700; padding: 0.5rem 0; }
        
        /* Code block style */
        .query-code {
            font-family: 'Courier New', Courier, monospace;
            color: var(--color-gray-700);
            font-weight: 500;
        }

        /* Animations */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-fade-in {
            animation: fadeIn 0.4s cubic-bezier(0.25, 1, 0.5, 1) forwards;
        }