:root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --background-color: #ecf0f1;
            --card-background: #ffffff;
            --text-color: #333;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --border-radius: 8px;
        }

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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--background-color);
            color: var(--text-color);
            line-height: 1.6;
            padding: 20px;
        }

        header {
            background-color: var(--primary-color);
            color: white;
            padding: 20px;
            border-radius: var(--border-radius);
            margin-bottom: 30px;
            text-align: center;
            box-shadow: var(--shadow);
        }

        header h1 {
            margin: 0;
            font-size: 2em;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            gap: 30px;
        }

        /* --- Panel de Control y Formulario --- */

        .sidebar {
            flex: 1;
            min-width: 300px;
            background-color: var(--card-background);
            padding: 20px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 20px;
        }

        .form-section h2, .prompt-list-section h2 {
            color: var(--primary-color);
            margin-bottom: 15px;
            border-bottom: 2px solid var(--secondary-color);
            padding-bottom: 5px;
        }

        .form-group {
            margin-bottom: 15px;
        }

        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: bold;
            color: var(--primary-color);
        }

        .form-group input[type="text"],
        .form-group textarea {
            width: 100%;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-size: 1em;
            transition: border-color 0.3s;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--secondary-color);
            outline: none;
        }

        textarea {
            resize: vertical;
        }

        button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 10px 15px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1em;
            transition: background-color 0.3s, transform 0.2s;
        }

        button:hover {
            background-color: #2980b9;
            transform: translateY(-1px);
        }

        .btn-accent {
            background-color: var(--accent-color);
        }

        .btn-accent:hover {
            background-color: #c0392b;
        }

        /* --- Listado y Búsqueda de Prompts --- */

        .main-content {
            flex: 2;
        }

        #search-controls {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
        }

        #search-input {
            flex-grow: 1;
        }

        #prompt-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }

        .prompt-card {
            background-color: var(--card-background);
            padding: 15px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            border-left: 5px solid var(--secondary-color);
            transition: transform 0.3s;
        }

        .prompt-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
        }

        .prompt-card h3 {
            color: var(--primary-color);
            margin-bottom: 8px;
            font-size: 1.2em;
        }

        .prompt-card p {
            font-size: 0.95em;
            color: #555;
            margin-bottom: 10px;
        }

        .prompt-card .category-tags {
            margin: 10px 0;
        }

        .tag {
            display: inline-block;
            background-color: #f1c40f;
            color: var(--primary-color);
            padding: 3px 8px;
            border-radius: 12px;
            font-size: 0.8em;
            margin-right: 5px;
            font-weight: 600;
        }

        .prompt-card .actions button {
            padding: 5px 10px;
            font-size: 0.9em;
            margin-right: 5px;
        }

        .prompt-card .prompt-content {
            white-space: pre-wrap;
            background-color: #f7f9fa;
            border-left: 3px solid #ccc;
            padding: 10px;
            margin-top: 10px;
            font-family: monospace;
            font-size: 0.9em;
            overflow-x: auto;
        }

        /* --- Estilos para la Alerta/Mensaje --- */
        #message-area {
            padding: 10px;
            margin-bottom: 20px;
            border-radius: 4px;
            font-weight: bold;
            display: none; /* Oculto por defecto */
        }

        .message-success {
            background-color: #d4edda;
            color: #155724;
            border: 1px solid #c3e6cb;
        }

        .message-error {
            background-color: #f8d7da;
            color: #721c24;
            border: 1px solid #f5c6cb;
        }

        .empty-state {
            text-align: center;
            padding: 40px;
            background-color: #f9f9f9;
            border-radius: var(--border-radius);
            color: #7f8c8d;
            font-style: italic;
        }

        /* --- Responsividad --- */
        @media (max-width: 900px) {
            .container {
                flex-direction: column;
            }

            .sidebar {
                position: static;
                margin-bottom: 20px;
                min-width: auto;
            }

            #prompt-list {
                grid-template-columns: 1fr;
            }
        }