/* ==========================================================================
   Normalización y Reglas Base — Accesibilidad y Control Remoto TV
   Directrices: /home/oierst/.gemini/GEMINI.md
   ========================================================================== */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    height: 100%;
    width: 100%;
    background-color: var(--color-fondo-principal);
    color: var(--color-texto-principal);
    font-family: var(--fuente-principal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
}

body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    background-color: var(--color-fondo-principal);
    color: var(--color-texto-principal);
    font-family: var(--fuente-principal);
    font-weight: var(--peso-regular);
    line-height: 1.5;
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
}

/* Enlaces y Botones Neutros */
a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: inherit;
    background: transparent;
    border: none;
    cursor: pointer;
    outline: none;
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: transparent;
    border: none;
    outline: none;
}

img, svg, video {
    display: block;
    max-width: 100%;
}

/* Indicadores de Foco Nítidos exclusivos para Mando a Distancia (D-Pad) y Teclado */
:focus {
    outline: none;
}

body.modo-mando :focus-visible,
body.modo-mando .foco-activo {
    outline: 2px solid var(--color-borde-foco) !important;
    outline-offset: 2px !important;
    box-shadow: var(--sombra-foco) !important;
    z-index: 20;
}

body:not(.modo-mando) :focus {
    outline: none !important;
    box-shadow: none !important;
}

body:not(.modo-mando) input:focus,
body:not(.modo-mando) textarea:focus,
body:not(.modo-mando) select:focus {
    outline: none !important;
    border-color: var(--color-borde-foco) !important;
    box-shadow: 0 0 0 1px var(--color-borde-foco) !important;
}

/* Utilidades Comunes y Accesibilidad */
.oculto {
    display: none !important;
}

.visualmente-oculto {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Scroll Limpio para Pantallas de Televisión */
.sin-barra-desplazamiento {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.sin-barra-desplazamiento::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
}