:root {
            --bg-color: #121212;
            --card-bg: #2b568e;
            --text-color: #e0e0e0;
            --accent-color: #3498db;
            --accent-hover: #2980b9;
            --error-color: #e74c3c;
            --success-color: #2ecc71;
            --input-bg: #ebebeb;
        }


        .contact-container {
            background-color: var(--card-bg);
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            width: 100%;
            max-width: 600px;
            margin:auto;
            margin-top:120px;
        }

        h2 {
            margin-top: 0;
            text-align: center;
            font-weight: 500;
            color: #ffffff;
        }

        .form-group {
            margin-bottom: 20px;
        }

        label {
            display: block;
            margin-bottom: 8px;
            font-size: 0.9rem;
            color: #bbb;
        }

        input, textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #444;
            border-radius: 6px;
            background-color: var(--input-bg);
            color: #555;
            font-size: 1rem;
            box-sizing: border-box; /* Important pour le padding */
            transition: border-color 0.3s ease;
        }

        input:focus, textarea:focus {
            outline: none;
            border-color: var(--accent-color);
        }

        .required {
            color: var(--error-color);
        }

        button {
            width: 100%;
            padding: 14px;
            background-color: var(--accent-color);
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }

        button:hover {
            background-color: var(--accent-hover);
        }

        /* Alertes */
        .alert {
            padding: 12px;
            border-radius: 6px;
            margin-bottom: 20px;
            font-size: 0.9rem;
            text-align: center;
        }
        .alert-error {
            background-color: rgba(231, 76, 60, 0.2);
            color: var(--error-color);
            border: 1px solid var(--error-color);
        }
        .alert-success {
            background-color: rgba(46, 204, 113, 0.2);
            color: var(--success-color);
            border: 1px solid var(--success-color);
        }

        .hidden-field {
                    display: none !important;
                    visibility: hidden;
                }