:root {
            --background-color: #0D1117;
            --surface-color: #161B22;
            --border-color: #30363D;
            --primary-color: #58A6FF;
            --primary-hover-color: #79B8FF;
            --text-primary: #C9D1D9;
            --text-secondary: #8B949E;
            --green-glow: rgba(35, 134, 54, 0.5);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Poppins', sans-serif;
            background-color: var(--background-color);
            color: var(--text-primary);
            width: 100%;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        /* --- Contenedor Principal y Header --- */
        .app-container {
            width: 100%;
            max-width: 1200px;
            padding: 20px;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeIn 0.8s 0.2s cubic-bezier(0.25, 1, 0.5, 1) forwards;
        }

        @keyframes fadeIn {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .app-header {
            display: flex;
            align-items: center;
            gap: 15px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 20px;
        }

        .app-header .logo {
            width: 40px;
            height: 40px;
            background: linear-gradient(45deg, var(--primary-color), #a258ff);
            border-radius: 10px;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-shrink: 0;
        }

        .app-header .logo svg {
            width: 24px;
            height: 24px;
            color: white;
        }

        .app-header .app-title {
            font-size: 26px;
            font-weight: 700;
            background: linear-gradient(45deg, var(--primary-color), #a258ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        /* --- Navegación --- */
        .app-nav {
            display: flex;
            gap: 10px;
            margin-bottom: 30px;
            border-bottom: 1px solid var(--border-color);
        }

        .nav-button {
            padding: 10px 20px;
            background: none;
            border: none;
            color: var(--text-secondary);
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            border-bottom: 3px solid transparent;
            transition: color 0.2s, border-color 0.2s;
        }

        .nav-button:hover {
            color: var(--text-primary);
        }

        .nav-button.active {
            color: var(--primary-color);
            border-bottom-color: var(--primary-color);
        }

        /* --- Paneles de Contenido --- */
        .content-pane {
            display: none;
            animation: contentFadeIn 0.5s ease;
        }
        
        .content-pane.active {
            display: block;
        }

        @keyframes contentFadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* --- Layout Principal --- */
        .main-layout {
            display: grid;
            gap: 25px;
        }

        @media (min-width: 1024px) {
            .main-layout {
                grid-template-columns: 420px 1fr;
                align-items: start;
            }
        }

        /* --- Tarjetas de Sección --- */
        .card {
            background-color: var(--surface-color);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px 30px;
            margin-bottom: 25px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .info-cards {
            grid-column: 1 / -1;
            display: grid;
            gap: 25px;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        }

        .card-header {
            margin-bottom: 20px;
        }

        .card-header h2 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
        }
        
        .card-header h2 svg {
            width: 20px;
            height: 20px;
            margin-right: 8px;
            vertical-align: -3px;
            color: var(--primary-color);
        }

        .card-header p {
            font-size: 14px;
            color: var(--text-secondary);
        }
        
        .card a {
            color: var(--primary-hover-color);
            text-decoration: none;
            font-weight: 500;
        }

        .card a:hover {
            text-decoration: underline;
        }
        
        .card code {
            background-color: var(--background-color);
            padding: 2px 6px;
            border-radius: 4px;
            font-family: monospace;
            color: var(--primary-hover-color);
        }

        /* --- Lista de Servidores con Favicon --- */
        .server-list {
            list-style-type: none;
            padding-left: 0;
        }

        .server-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .server-list img {
            width: 20px;
            height: 20px;
            border-radius: 4px;
        }

        .server-list a {
            font-size: 16px;
            font-weight: 500;
        }

        /* --- Formulario y Controles --- */
        .input-group {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        label {
            font-weight: 500;
            font-size: 14px;
            color: var(--text-secondary);
        }

        input[type="url"], textarea {
            width: 100%;
            padding: 12px 16px;
            background-color: var(--background-color);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            border-radius: 8px;
            font-size: 15px;
            font-family: 'Poppins', sans-serif;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        input[type="url"]:focus, textarea:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.3);
        }

        textarea {
            resize: vertical;
            min-height: 100px;
        }

        .action-button {
            width: 100%;
            padding: 14px;
            margin-top: 10px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            background-color: var(--primary-color);
            color: var(--background-color);
            transition: background-color 0.2s, transform 0.2s;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
        }

        .action-button:hover {
            background-color: var(--primary-hover-color);
            transform: translateY(-2px);
        }

        /* --- Sección de Resultados y Vista Previa --- */
        #results-section {
            display: none;
            margin-bottom: 0;
        }
        
        .results-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 25px;
        }

        @media (min-width: 500px) {
            .results-grid {
                 grid-template-columns: 1fr 1fr;
            }
            .preview-container {
                grid-column: 1 / -1;
            }
        }

        .output-group {
            position: relative;
        }

        .copy-button {
            position: absolute;
            top: 10px;
            right: 10px;
            padding: 5px 10px;
            background-color: var(--border-color);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            cursor: pointer;
            font-weight: 500;
            font-size: 12px;
            border-radius: 6px;
            transition: all 0.2s;
        }
        .copy-button:hover {
            background-color: #30363d;
            color: var(--text-primary);
        }

        .preview-container {
            grid-column: 1 / -1;
        }
        
        #preview-iframe {
            width: 100%;
            aspect-ratio: 16 / 9;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background-color: #000;
        }

        /* --- Reproductor a Pantalla Completa --- */
        #full-video-player {
            display: none;
            position: fixed;
            top: 0; left: 0;
            width: 100%;
            height: 100%;
            z-index: 1000;
            background-color: #000;
        }

        #full-video-player iframe {
            width: 100%;
            height: 100%;
            border: none;
        }
        
        /* --- Notificaciones --- */
        .notification {
            position: fixed;
            top: 25px;
            left: 50%;
            transform: translateX(-50%);
            padding: 12px 25px;
            border-radius: 8px;
            background: #22c55e;
            color: white;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 20px var(--green-glow);
            z-index: 2000;
            font-size: 15px;
            font-weight: 500;
            animation: slide-in-out 3s cubic-bezier(0.25, 1, 0.5, 1) forwards;
        }
        @keyframes slide-in-out {
            0% { transform: translate(-50%, -80px); opacity: 0; }
            15% { transform: translate(-50%, 0); opacity: 1; }
            85% { transform: translate(-50%, 0); opacity: 1; }
            100% { transform: translate(-50%, -80px); opacity: 0; }
        }

        /* --- NUEVO: Estilo para la insignia de versión --- */
        .version-badge {
            display: inline-block;
            margin-top: 15px;
            background-color: var(--border-color);
            color: var(--text-secondary);
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px; /* Forma de píldora */
            letter-spacing: 0.5px;
            border: 1px solid #444c56;
        }


        /* --- Responsividad --- */
        @media (max-width: 1023px) {
            .app-container { padding: 15px; }
            .app-header .app-title { font-size: 22px; }
            .card { padding: 20px; }
        }