/* ============================================================
   VARIABLES Y RESET
   ============================================================ */
:root {
    --color-primario: #e63946;
    --color-primario-oscuro: #c8303c;
    --color-secundario: #1d3557;
    --color-fondo: #f8f9fb;
    --color-tarjeta: #ffffff;
    --color-borde: #e5e8ec;
    --color-texto: #212529;
    --color-texto-suave: #5b6470;
    --sombra: 0 2px 10px rgba(29, 53, 87, 0.08);
    --radio-borde: 16px;
    /* Color de títulos: en modo claro es el "color_secundario" configurable
       del sitio; en modo oscuro usamos uno propio (ver más abajo) para que
       los títulos se sigan leyendo bien sobre fondo oscuro. */
    --color-titulo: var(--color-secundario);
}

/* Modo oscuro automático: sigue la preferencia del sistema operativo
   del visitante (no hay switch manual, es automático a propósito para
   que el sitio sea simple para todas las edades). */
@media (prefers-color-scheme: dark) {
    :root {
        --color-fondo: #14171c;
        --color-tarjeta: #1e2229;
        --color-borde: #2c313a;
        --color-texto: #eef0f2;
        --color-texto-suave: #a7adb6;
        --sombra: 0 2px 14px rgba(0, 0, 0, 0.4);
        --color-titulo: #eef0f2;
    }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
    background: var(--color-fondo);
    color: var(--color-texto);
    font-size: 17px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

/* ============================================================
   HEADER
   ============================================================ */
.header {
    background: var(--color-tarjeta);
    border-bottom: 1px solid var(--color-borde);
    position: sticky;
    top: 0;
    z-index: 20;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: .75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.marca {
    display: flex;
    align-items: center;
    gap: .6rem;
    text-decoration: none;
    color: var(--color-titulo);
    font-weight: 800;
    font-size: 1.15rem;
}
.marca-logo { width: 38px; height: 38px; border-radius: 10px; object-fit: cover; }

.nav-principal {
    display: none;
    gap: 1.5rem;
    font-weight: 600;
    font-size: .98rem;
}
.nav-principal a { text-decoration: none; color: var(--color-texto-suave); }
.nav-principal a:hover { color: var(--color-primario); }

@media (min-width: 720px) {
    .nav-principal { display: flex; }
}

.btn-chat-header {
    display: flex;
    align-items: center;
    gap: .45rem;
    background: var(--color-primario);
    color: #fff;
    border: none;
    padding: .6rem 1.1rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: .95rem;
    cursor: pointer;
    transition: background .15s;
}
.btn-chat-header:hover { background: var(--color-primario-oscuro); }

/* ============================================================
   LAYOUT PRINCIPAL
   ============================================================ */
.layout-principal {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 1rem 2.5rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

@media (min-width: 960px) {
    .layout-principal {
        grid-template-columns: 1fr 300px;
        align-items: start;
    }
}

.columna-central { display: flex; flex-direction: column; gap: 1.25rem; min-width: 0; }
.columna-lateral { display: flex; flex-direction: column; gap: 1.25rem; }

.tarjeta {
    background: var(--color-tarjeta);
    border-radius: var(--radio-borde);
    box-shadow: var(--sombra);
    padding: 1.25rem;
}

/* ============================================================
   VIDEO EN VIVO
   ============================================================ */
.video-tarjeta-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: .85rem;
}

.video-titulo { font-size: 1.05rem; margin: 0; color: var(--color-titulo); order: -1; width: 100%; }

.etiqueta-estado {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    background: #fdecea;
    color: var(--color-primario-oscuro);
    font-weight: 700;
    font-size: .8rem;
    letter-spacing: .04em;
    padding: .3rem .65rem;
    border-radius: 999px;
}
.etiqueta-estado.pasado { background: #eef0f3; color: var(--color-texto-suave); }

.punto-en-vivo {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--color-primario);
    animation: latido 1.4s infinite;
}
.etiqueta-estado.pasado .punto-en-vivo { background: #9aa4b2; animation: none; }

@keyframes latido {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .4; transform: scale(.7); }
}

.video-envoltorio {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    overflow: hidden;
    background: #0d1117;
}
.video-envoltorio iframe {
    position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}

.video-nota { color: var(--color-texto-suave); font-size: .88rem; margin: .7rem 0 0; }

.video-titulo-programa {
    margin: -.4rem 0 .85rem;
    font-size: .95rem;
    font-weight: 600;
    color: var(--color-titulo);
}

.contador-oyentes {
    font-size: .8rem;
    color: var(--color-texto-suave);
    background: var(--color-fondo);
    padding: .3rem .65rem;
    border-radius: 999px;
}

.video-acciones {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    margin: 0 0 .9rem;
}

.btn-accion-video {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    background: var(--color-fondo);
    color: var(--color-texto);
    border: 1px solid var(--color-borde);
    border-radius: 999px;
    padding: .5rem .9rem;
    font-size: .85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s ease;
}
.btn-accion-video:hover { background: var(--color-borde); }
.btn-accion-video.activo {
    background: var(--color-primario);
    border-color: var(--color-primario);
    color: #fff;
}

/* ============================================================
   AUDIO
   ============================================================ */
.selector-emisoras {
    display: flex;
    gap: .5rem;
    background: var(--color-fondo);
    padding: .35rem;
    border-radius: 999px;
    margin-bottom: 1rem;
}

.btn-emisora {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    border: none;
    background: transparent;
    padding: .5rem .5rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: .92rem;
    color: var(--color-texto-suave);
    cursor: pointer;
    transition: background .15s, color .15s;
}
.btn-emisora.activa {
    background: var(--color-secundario);
    color: #fff;
}

.btn-emisora-logo {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.audio-controles {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    gap: .5rem 1rem;
    align-items: center;
}

.btn-play-pausa {
    grid-row: 1 / 3;
    width: 62px; height: 62px;
    border-radius: 50%;
    background: var(--color-primario);
    color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background .15s, transform .1s;
}
.btn-play-pausa:hover { background: var(--color-primario-oscuro); }
.btn-play-pausa:active { transform: scale(.95); }

.btn-play-pausa.sugerido {
    animation: pulso-sugerido 1.4s infinite;
}
@keyframes pulso-sugerido {
    0%, 100% { box-shadow: 0 0 0 0 rgba(230, 57, 70, .5); }
    50% { box-shadow: 0 0 0 10px rgba(230, 57, 70, 0); }
}

.audio-info-fila { display: flex; align-items: center; gap: .7rem; min-width: 0; }

.audio-emisora-logo {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 1px 4px rgba(0,0,0,.15);
}

.audio-info { display: flex; flex-direction: column; gap: .1rem; min-width: 0; }
.audio-info strong { font-size: 1.05rem; color: var(--color-titulo); }
.audio-estado { font-size: .85rem; color: var(--color-texto-suave); }
.audio-estado.en-vivo { color: var(--color-primario); font-weight: 700; }

.control-volumen {
    display: flex;
    align-items: center;
    gap: .5rem;
    color: var(--color-texto-suave);
}
.control-volumen input[type="range"] {
    flex: 1;
    accent-color: var(--color-primario);
}

/* ============================================================
   REDES SOCIALES
   ============================================================ */
.redes-tarjeta h2 { margin: 0 0 1rem; font-size: 1.05rem; color: var(--color-titulo); }

.redes-lista {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
}

.red-social {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .7rem 1.1rem;
    border-radius: 999px;
    background: var(--color-fondo);
    text-decoration: none;
    font-weight: 700;
    font-size: .92rem;
    color: var(--color-titulo);
    border: 1px solid var(--color-borde);
    transition: transform .12s, box-shadow .12s;
}
.red-social:hover { transform: translateY(-2px); box-shadow: var(--sombra); }
.red-social svg { flex-shrink: 0; }

/* ============================================================
   ESPACIOS PUBLICITARIOS
   ============================================================ */
.espacio-publicidad {
    display: none; /* se muestra solo si tiene contenido cargado */
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}
.espacio-publicidad.con-contenido { display: block; }

.espacio-publicidad a { display: block; }
.espacio-publicidad img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--sombra);
}

.columna-lateral .espacio-publicidad { padding: 0; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    text-align: center;
    padding: 2rem 1rem 2.5rem;
    color: var(--color-texto-suave);
}
.footer p { margin: .2rem 0; }
.footer #footer-nombre-sitio { font-weight: 700; color: var(--color-titulo); }
.footer-chico { font-size: .85rem; }

/* ============================================================
   CHAT (ventana emergente)
   ============================================================ */
/* El atributo "hidden" no siempre aplica display:none en elementos SVG
   en todos los navegadores, así que lo forzamos explícitamente. */
[hidden] {
    display: none !important;
}

.fondo-chat {
    position: fixed; inset: 0;
    background: rgba(29, 53, 87, .35);
    z-index: 40;
}

.panel-chat {
    position: fixed;
    z-index: 50;
    background: var(--color-tarjeta);
    display: flex;
    flex-direction: column;
    box-shadow: 0 -6px 24px rgba(0,0,0,.15);

    /* Mobile: ocupa la parte inferior de la pantalla */
    left: 0; right: 0; bottom: 0;
    height: min(75vh, 560px);
    border-radius: 18px 18px 0 0;
}

@media (min-width: 640px) {
    .panel-chat {
        left: auto;
        right: 1.25rem;
        bottom: 1.25rem;
        width: 380px;
        height: 560px;
        border-radius: 18px;
    }
}

.panel-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.1rem;
    border-bottom: 1px solid var(--color-borde);
}
.panel-chat-header h2 { margin: 0; font-size: 1.05rem; color: var(--color-titulo); }

.btn-cerrar-chat {
    background: var(--color-fondo);
    border: none;
    width: 34px; height: 34px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    color: var(--color-texto-suave);
}

.chat-mensajes {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 1.1rem;
    display: flex;
    flex-direction: column;
    gap: .6rem;
}

.chat-mensaje {
    background: var(--color-fondo);
    padding: .55rem .8rem;
    border-radius: 12px;
    font-size: .93rem;
    max-width: 90%;
    align-self: flex-start;
    word-break: break-word;
}
.chat-mensaje .chat-mensaje-nombre {
    display: block;
    font-weight: 700;
    color: var(--color-primario);
    font-size: .8rem;
    margin-bottom: .15rem;
}

.chat-vacio {
    color: var(--color-texto-suave);
    font-size: .9rem;
    text-align: center;
    margin-top: 1rem;
}

.form-chat {
    padding: .85rem 1.1rem 1.1rem;
    border-top: 1px solid var(--color-borde);
    display: flex;
    flex-direction: column;
    gap: .5rem;
}
.form-chat input[type="text"] {
    width: 100%;
    padding: .65rem .8rem;
    border: 1px solid var(--color-borde);
    border-radius: 10px;
    font-size: .95rem;
}
.form-chat-fila { display: flex; gap: .5rem; }
.form-chat-fila input { flex: 1; }

.btn-enviar-chat {
    background: var(--color-primario);
    color: #fff;
    border: none;
    width: 46px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
}
.btn-enviar-chat:hover { background: var(--color-primario-oscuro); }

.chat-deshabilitado {
    margin: 0;
    padding: .7rem 1.1rem;
    background: #fff6e5;
    color: #8a6100;
    font-size: .85rem;
    text-align: center;
    border-top: 1px solid var(--color-borde);
}

.btn-chat-header:disabled,
.btn-chat-header.deshabilitado {
    background: #c7cbd1;
    cursor: not-allowed;
    opacity: .8;
}

/* ============================================================
   BANNER DE INSTALACIÓN PWA
   ============================================================ */
.banner-instalar {
    position: fixed;
    left: .75rem;
    right: .75rem;
    bottom: .75rem;
    z-index: 60;
    background: var(--color-secundario);
    color: #fff;
    border-radius: 16px;
    padding: .9rem 1rem;
    display: flex;
    align-items: center;
    gap: .8rem;
    box-shadow: 0 8px 24px rgba(0,0,0,.25);
    max-width: 460px;
    margin: 0 auto;
}
.banner-instalar-icono { width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0; }
.banner-instalar-texto { display: flex; flex-direction: column; gap: .15rem; flex: 1; font-size: .87rem; line-height: 1.35; }
.banner-instalar-texto strong { font-size: .98rem; }

.banner-instalar-botones { display: flex; align-items: center; gap: .4rem; flex-shrink: 0; }
.btn-instalar-ahora {
    background: var(--color-primario);
    color: #fff;
    border: none;
    padding: .55rem .9rem;
    border-radius: 10px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
}
.btn-instalar-cerrar {
    background: transparent;
    border: none;
    color: #fff;
    opacity: .7;
    font-size: 1rem;
    cursor: pointer;
    padding: .3rem;
}

/* ============================================================
   ACCESIBILIDAD / UTILIDADES
   ============================================================ */
:focus-visible {
    outline: 3px solid var(--color-primario);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}