@import url("https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css");

/* Oscar Manuel Gálvez López. Instituto Tecnológico y de Estudios Superiores de Monterrey. */
/* Con cariño para la humanidad. Que las horas de trabajo que puse aquí sirvan a la paz y la ciencia. */
/* 10/03/26 - 15/05/26 */

/* ==========================================================================
   CVA — Estilos complementarios del proyecto
   --------------------------------------------------------------------------
   Este archivo NO redefine la identidad general de la plantilla.
   Parte del CSS base del curso (tipografía, tamaños de texto, colores
   generales y utilidades) y añade únicamente:

   1. Componentes reutilizables.
   2. Variantes optativas.
   3. Ajustes acotados para páginas que ya fueron reformateadas.

   Criterio de mantenimiento:
   - No inflar tamaños de párrafos ni subtítulos.
   - No reescribir estilos globales de h1, h2, h3, p o li.
   - Preferir clases reutilizables antes que reglas por página.
   - Cuando una regla sea particular, debe quedar claramente aislada.
   ========================================================================== */

:root {
    --cva-accent: var(--theme-color, #093b8b);
    --cva-accent-dark: #08377d;
    --cva-border: #dbe4f0;
    --cva-border-soft: #e7eef8;
    --cva-surface: #ffffff;
    --cva-surface-soft: #f8fafc;
    --cva-text-soft: #667085;
    --cva-shadow-soft: 0 8px 20px rgba(15, 23, 42, 0.08);
    --cva-shadow-button: 0 8px 18px rgba(13, 68, 150, 0.22);
    --cva-shadow-button-hover: 0 12px 24px rgba(13, 68, 150, 0.30);
}


/* ==========================================================================
   A. Layouts reutilizables
   ========================================================================== */

/* Contenido principal + bloque lateral */
.contenido-con-nota,
.contenido-con-dos-burbujas,
.contenido-url {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 40px;
    align-items: start;
}

.contenido-url {
    gap: 42px;
    padding: 24px 28px 28px;
}

.contenido-principal,
.contenido-url-principal {
    min-width: 0;
}

.contenido-con-dos-burbujas > .contenido-principal {
    grid-column: 1;
}

.contenido-con-dos-burbujas > .burbujas-laterales {
    grid-column: 2;
}

.burbujas-laterales {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

/* Ritmo de subtítulos dentro de bloques de contenido */
.contenido-principal > h3:not(:first-child),
.contenido-url-principal > h3:not(:first-child),
.contenido-dominio-estructura > h3:not(:first-child) {
    margin-top: 30px;
}

.contenido-principal > h3:first-child,
.contenido-url-principal > h3:first-child,
.contenido-dominio-estructura > h3:first-child {
    margin-top: 0;
}


/* ==========================================================================
   B. Burbujas informativas
   ========================================================================== */

.info-lateral-verde {
    margin-top: 132px;
    padding: 22px 24px;
    color: #143d22;
    background: #e4f6ea;
    border: 1px solid #b9dfc5;
    border-left: 8px solid #2f8f4e;
    border-radius: 14px;
    box-shadow: var(--cva-shadow-soft);
}

.burbujas-laterales .info-lateral-verde,
.info-arriba-derecha,
.contenido-url .info-lateral-verde {
    margin-top: 0;
}

.info-arriba-derecha {
    align-self: start;
}

.info-lateral-verde.info-en-texto {
    width: 100%;
    max-width: 760px;
    margin: 22px 0;
}

.info-lateral-titulo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    color: #1f6f3c;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.info-lateral-icono {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    color: #ffffff;
    background: #2f8f4e;
    border-radius: 50%;
    font-family: Arial, sans-serif;
    font-style: normal;
    font-weight: 800;
    line-height: 1;
    text-transform: lowercase;
}

.info-lateral-verde p,
.info-lateral-verde.info-en-texto p {
    margin: 0;
}

.info-lateral-verde strong {
    color: #0f542b;
    font-weight: 800;
}

.info-lateral-verde.info-en-texto.info-en-texto-ancha {
    width: 100%;
    max-width: none;
    box-sizing: border-box;
}


/* ==========================================================================
   C. Imágenes y visor fullscreen
   ========================================================================== */

.imagen-dominio {
    display: block;
    width: 100%;
    max-width: 560px;
    margin: 10px 0 28px;
}

.imagen-esquema-dominio {
    display: block;
    width: 100%;
    max-width: 720px;
    height: auto;
    margin: 12px auto 20px;
    border: 1px solid #f2a019;
}

.imagen-url {
    display: block;
    width: 100%;
    max-width: 730px;
    height: auto;
    margin: 12px 0 28px;
    border: 1px solid #f2a019;
}

.imagen-chica {
    display: block;
    width: auto;
    max-width: min(100%, 420px);
    max-height: 300px;
    height: auto;
    margin: 18px auto 28px;
    cursor: zoom-in;
}

.imagen-mediana {
    display: block;
    width: auto;
    max-width: min(100%, 560px);
    max-height: 360px;
    height: auto;
    margin: 18px auto 28px;
    cursor: zoom-in;
}

.panel-imagen {
    text-align: center;
}

.mini-icono {
    display: block;
    width: auto;
    max-width: 50px;
    height: auto;
    margin: 0 auto;
    cursor: zoom-in;
}

.imagen-ejemplo,
.img-ampliable {
    display: block;
    width: auto;
    height: auto;
    margin: 0 auto;
    cursor: zoom-in;
    border: none !important;
    border-radius: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
}

.imagen-ejemplo {
    max-width: 100%;
    max-height: 320px;
}

.img-ampliable {
    max-width: min(100%, 680px);
    max-height: 42vh;
    transition: none;
}

.visor-imagen {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 28px;
    background: rgba(18, 24, 38, 0.28);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.visor-imagen.activo {
    display: flex;
}

.visor-imagen-contenido {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: min(92vw, 1100px);
    max-height: 92vh;
    animation: visorEntrada 0.2s ease;
}

.visor-imagen-contenido img {
    display: block;
    width: auto;
    max-width: 100%;
    max-height: 92vh;
    height: auto;
    background: transparent;
    border: none;
    box-shadow: none;
}

.visor-cerrar {
    position: absolute;
    top: -18px;
    right: -18px;
    min-width: 44px;
    height: 44px;
    color: #222233;
    background: rgba(255, 255, 255, 0.88);
    border: none;
    border-radius: 999px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
    transition:
        transform 0.2s ease,
        background 0.2s ease;
}

.visor-cerrar:hover {
    background: #ffffff;
    transform: scale(1.06);
}

.visor-ayuda {
    position: fixed;
    bottom: 18px;
    left: 50%;
    padding: 8px 14px;
    color: #222233;
    background: rgba(255, 255, 255, 0.94);
    border-radius: 999px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
    font-size: 0.9rem;
    pointer-events: none;
    transform: translateX(-50%);
}

@keyframes visorEntrada {
    from {
        opacity: 0;
        transform: scale(0.96);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}


/* ==========================================================================
   D. Notas, listas y llamados auxiliares
   ========================================================================== */

.lista-dominios {
    margin-top: 16px;
    padding-left: 28px;
}

.lista-dominios li {
    margin-bottom: 14px;
}

.lista-dominios a {
    color: #098be8;
    text-decoration: none;
}

.lista-dominios a:hover,
.lista-dominios a:focus {
    text-decoration: underline;
}

.nota-compra {
    margin-top: 22px;
    padding: 16px 18px;
    background: var(--cva-surface-soft);
    border: 1px solid var(--cva-border);
    border-radius: 12px;
}

.nota-compra p:last-child {
    margin-bottom: 0;
}

.indicacion-imagen {
    margin-top: 10px;
    margin-bottom: 12px;
    color: var(--cva-text-soft);
    font-size: 0.95rem;
}


/* ==========================================================================
   E. Botones y píldoras
   ========================================================================== */

.botones-dominios {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 22px;
}

.boton-dominio {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 150px;
    padding: 12px 22px;
    color: #ffffff;
    background: var(--cva-accent);
    border-radius: 14px;
    box-shadow: var(--cva-shadow-button);
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease,
        background 0.2s ease;
}

.boton-dominio:hover,
.boton-dominio:focus {
    color: #ffffff;
    background: var(--cva-accent-dark);
    box-shadow: var(--cva-shadow-button-hover);
    text-decoration: none;
    transform: translateY(-2px);
}

.pildoras-pasos-wrapper {
    display: flex;
    justify-content: center;
    width: 100%;
    margin: 28px 0 10px;
}

.pildoras-pasos {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    justify-content: center;
    width: 100%;
    max-width: 980px;
    gap: 14px;
}

.pildora-paso {
    display: inline-flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    min-width: 210px;
    min-height: 54px;
    padding: 10px 18px 10px 10px;
    color: var(--cva-accent);
    background: #f7fbff;
    border: 1px solid #c9d8ef;
    border-radius: 999px;
    box-shadow: 0 8px 18px rgba(13, 68, 150, 0.10);
    font-weight: 700;
    line-height: 1.2;
    text-align: left;
    cursor: pointer;
    appearance: none;
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease,
        background 0.2s ease,
        border-color 0.2s ease;
}

.pildora-paso:hover,
.pildora-paso:focus {
    color: var(--cva-accent);
    background: #ffffff;
    border-color: #95b4e3;
    box-shadow: 0 12px 24px rgba(13, 68, 150, 0.18);
    outline: none;
    transform: translateY(-2px);
}

.pildora-paso-numero {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    color: #ffffff;
    background: var(--cva-accent);
    border-radius: 999px;
    box-shadow: 0 5px 12px rgba(13, 68, 150, 0.25);
    font-weight: 800;
}

.pildora-paso-texto {
    display: block;
    white-space: normal;
}


/* ==========================================================================
   F. Tabs y tarjetas de contenido
   ========================================================================== */

.botones-temas {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 20px 0 25px;
    padding-left: 0;
}

.botones-temas .nav-item {
    float: none;
}

.botones-temas .nav-link {
    min-width: 160px;
    padding: 12px 22px;
    color: var(--cva-text-soft);
    background: var(--cva-surface-soft);
    border: 1px solid var(--cva-border);
    border-radius: 18px;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
    font-weight: 600;
    text-align: center;
    transition: all 0.22s ease;
}

.botones-temas .nav-link:hover,
.botones-temas .nav-link:focus {
    color: var(--cva-accent);
    background: #ffffff;
    border-color: #c7d5ea;
    box-shadow: 0 8px 18px rgba(24, 71, 156, 0.10);
    transform: translateY(-1px);
}

.botones-temas .nav-link.active,
.botones-temas .show > .nav-link {
    color: #ffffff;
    background: linear-gradient(135deg, var(--cva-accent) 0%, #0f3d8f 100%);
    border-color: transparent;
    box-shadow: 0 10px 22px rgba(24, 71, 156, 0.22);
}

.tarjeta-elemento {
    overflow: hidden;
    background: var(--cva-surface);
    border: 1px solid var(--cva-border-soft);
    border-radius: 18px;
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.07);
}

.tarjeta-elemento .contenido-texto {
    padding: 28px 28px 26px;
}

.tarjeta-elemento .card-title {
    margin-bottom: 18px;
    color: var(--cva-accent);
}

.tarjeta-elemento .tabla-iconos td {
    vertical-align: middle;
}


/* ==========================================================================
   G. Pasos / secuencias visuales
   ========================================================================== */

.tutorial-intro {
    margin-bottom: 10px;
}

.tutorial-steps-wrapper,
.contenido-steps-wrapper {
    position: relative;
    margin: 10px auto 0;
    padding: 30px 10px 10px;
}

.tutorial-steps-wrapper {
    max-width: 520px;
}

.contenido-steps-wrapper {
    max-width: 900px;
    margin-top: 20px;
}

.tutorial-steps-wrapper::before,
.contenido-steps-wrapper::before {
    content: "";
    position: absolute;
    top: 58px;
    z-index: 0;
    height: 4px;
    background: linear-gradient(90deg, #cfcdfd 0%, #6f6be8 100%);
    border-radius: 999px;
}

.tutorial-steps-wrapper::before {
    left: 55px;
    right: 55px;
}

.contenido-steps-wrapper::before {
    left: 80px;
    right: 80px;
}

.tutorial-steps,
.contenido-steps {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.tutorial-steps {
    flex-wrap: nowrap;
    justify-content: space-between;
}

.contenido-steps {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 16px;
}

.tutorial-step-item,
.contenido-step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tutorial-step-item {
    min-width: 90px;
}

.contenido-step-item {
    flex: 1 1 180px;
    min-width: 180px;
}

.tutorial-step,
.contenido-step {
    border: none;
    border-radius: 16px;
    box-shadow: 0 8px 18px rgba(90, 90, 180, 0.20);
    font-weight: 700;
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.tutorial-step {
    width: 62px;
    height: 62px;
    padding: 0;
}

.contenido-step {
    width: 100%;
    min-height: 72px;
    padding: 12px 14px;
    line-height: 1.2;
    white-space: normal;
}

.tutorial-step:hover,
.tutorial-step:focus,
.contenido-step:hover,
.contenido-step:focus {
    box-shadow: 0 12px 24px rgba(90, 90, 180, 0.28);
    transform: translateY(-3px);
}

.tutorial-step-label {
    margin-top: 8px;
    color: #555555;
    line-height: 1.25;
    text-align: center;
}


/* ==========================================================================
   H. Modal optativo del proyecto
   --------------------------------------------------------------------------
   Para evitar tocar TODOS los modales Bootstrap del sitio, estas reglas
   solo aplican cuando el modal lleva la clase .modal-cva.
   ========================================================================== */

.modal.modal-cva .modal-dialog {
    max-width: 600px;
}

.modal.modal-cva .modal-content {
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.20);
}

.modal.modal-cva .modal-header {
    position: relative;
    padding: 20px 25px 8px;
    border-bottom: none;
    border-radius: 12px 12px 0 0;
}

.modal.modal-cva .modal-title {
    margin: 0;
    color: var(--cva-accent);
    font-weight: 600;
}

.modal.modal-cva .btn-close {
    position: absolute;
    top: 50%;
    right: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    color: inherit;
    background: rgba(255, 255, 255, 0.20);
    border: none;
    border-radius: 50%;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    transform: translateY(-50%);
    transition: all 0.3s ease;
}

.modal.modal-cva .btn-close:hover {
    background: rgba(255, 255, 255, 0.40);
    transform: translateY(-50%) rotate(90deg);
}

.modal.modal-cva .modal-body {
    max-height: 70vh;
    padding: 8px 25px 26px;
    overflow-x: hidden;
    overflow-y: auto;
}

.modal.modal-cva.fade .modal-dialog {
    transform: scale(0.95);
    transition: transform 0.3s ease-out;
}

.modal.modal-cva.show .modal-dialog {
    transform: scale(1);
}


/* ==========================================================================
   I. Ajustes acotados para páginas ya reformateadas
   --------------------------------------------------------------------------
   Estas reglas NO son patrones generales del sitio.
   Se mantienen aquí porque el proyecto pide un único CSS de trabajo, pero
   quedan aisladas por clases propias para no contaminar otras páginas.
   ========================================================================== */

/* I.1 Página "Usos de la Web" */
.tarjeta-usos,
.tarjeta-definicion,
.tarjeta-dominio {
    margin-top: 24px;
    border: none !important;
    border-radius: 8px;
    background: var(--cva-surface);
    box-shadow: none !important;
}

.tarjeta-usos > .card-block,
.tarjeta-definicion > .card-block {
    padding: 36px 32px 54px;
    border: none !important;
}

.usos-intro {
    margin: 0 0 26px;
    font-weight: 500;
    line-height: 1.45;
}

.tarjeta-usos .tab-content,
.tarjeta-definicion .tab-content {
    margin-top: 18px;
}

.tarjeta-uso-detalle,
.tarjeta-definicion-detalle {
    overflow: hidden;
    margin-bottom: 0;
    border: 1px solid #dce5f2;
    border-radius: 6px;
    background: var(--cva-surface);
    box-shadow: none;
}

.tarjeta-usos .image-container,
.tarjeta-definicion .image-container {
    padding-right: 0;
    padding-left: 0;
}

.tarjeta-usos .card-horizon,
.tarjeta-usos .background-holder {
    min-height: 204px;
}

.tarjeta-usos .background-holder,
.tarjeta-definicion .card-horizon .background-holder {
    background-position: center;
    background-size: cover;
}

.tarjeta-usos .card-title,
.tarjeta-definicion .contenido-tab .card-title,
.dominio-bloque h1,
.dominios-internacionales h3 {
    color: var(--cva-accent);
    font-weight: 700;
}

/* I.2 Página "Página y Sitio Web" */
.tarjeta-definicion > .card-block > .card-title {
    margin-bottom: 20px;
    color: var(--cva-accent);
    font-weight: 700;
    line-height: 1.3;
}

.tarjeta-definicion > .card-block > .card-title .badge,
.dominio-bloque h1 .badge {
    margin-right: 10px;
    padding: 8px 12px;
    border-radius: 999px;
    color: var(--cva-accent);
    background: #eef4ff;
    font-weight: 700;
    vertical-align: middle;
}

.definicion-intro {
    margin-bottom: 12px;
}

.definicion-indicacion {
    margin-bottom: 18px;
}

.tarjeta-definicion .card-horizon,
.tarjeta-definicion .card-horizon .background-holder {
    min-height: 260px;
}

.tarjeta-definicion .card-horizon .background-holder {
    border-radius: 6px 0 0 6px;
}

.nota-hipervinculo {
    display: block;
    margin-top: 16px;
    padding: 11px 14px;
    color: var(--cva-text-soft);
    background: var(--cva-surface-soft);
    border-left: 4px solid var(--cva-accent);
    font-size: 0.92rem;
    line-height: 1.65;
}

/* I.3 Página "Dominio" */
.tarjeta-dominio .dominio-bloque {
    padding: 42px 48px 54px;
}

.tarjeta-dominio .dominio-bloque h1 {
    margin-bottom: 30px;
}

.dominio-intro-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 440px;
    gap: 42px;
    align-items: start;
    margin-top: 8px;
    margin-bottom: 46px;
}

.dominio-imagen-contenedor {
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.dominio-imagen-contenedor .imagen-dominio {
    width: 100%;
    max-width: 560px;
    height: auto;
    margin: 0 auto;
}

.dominio-intro-grid .info-lateral-verde {
    margin-top: 0;
    align-self: start;
}

.dominio-texto-completo {
    max-width: 100%;
    margin-top: 0;
}

.dominio-texto-completo p {
    margin-bottom: 22px;
}

/* I.4 Página "Estructura y tipos de dominio" */
.dominio-estructura-bloque {
    padding: 38px 42px 44px !important;
}

.contenido-dominio-estructura {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
}

.contenido-dominio-estructura .imagen-esquema-dominio {
    max-width: 620px;
    margin-bottom: 38px;
    object-fit: contain;
    cursor: zoom-in;
}

.contenido-dominio-estructura .lista-dominios {
    margin-top: 16px;
    margin-bottom: 28px;
}

.dominios-internacionales {
    width: 100%;
    max-width: 820px;
    margin: 30px auto 28px;
    padding: 28px;
    border: 1px solid #d9e2f1;
    border-radius: 16px;
    background: var(--cva-surface);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}

.dominios-internacionales h3 {
    margin-top: 0;
    margin-bottom: 18px;
}

.dominios-internacionales img {
    display: block;
    width: 100%;
    max-width: 680px;
    max-height: 390px;
    height: auto;
    margin: 0 auto;
    object-fit: contain;
    cursor: zoom-in;
}

.contenido-dominio-estructura .nota-compra {
    max-width: 980px;
    margin-top: 32px;
}


/* ==========================================================================
   J. Responsive
   ========================================================================== */

@media (max-width: 992px) {
    .contenido-con-nota,
    .contenido-con-dos-burbujas,
    .contenido-url,
    .dominio-intro-grid {
        grid-template-columns: 1fr;
    }

    .contenido-con-dos-burbujas > .contenido-principal,
    .contenido-con-dos-burbujas > .burbujas-laterales {
        grid-column: 1;
    }

    .contenido-url {
        gap: 18px;
        padding: 22px 20px 26px;
    }

    .info-lateral-verde {
        margin-top: 20px;
    }

    .contenido-url .info-lateral-verde,
    .info-arriba-derecha,
    .burbujas-laterales .info-lateral-verde,
    .dominio-intro-grid .info-lateral-verde {
        margin-top: 0;
    }
}

@media (max-width: 991.98px) {
    .panel-imagen {
        margin-top: 18px;
    }

    .tarjeta-usos > .card-block,
    .tarjeta-definicion > .card-block {
        padding: 30px 24px 44px;
    }

    .tarjeta-dominio .dominio-bloque {
        padding: 34px 28px 44px;
    }

    .tarjeta-dominio .dominio-intro-grid {
        margin-bottom: 34px;
    }

    .dominio-estructura-bloque {
        padding: 30px 28px 38px !important;
    }

    .dominios-internacionales {
        padding: 22px;
    }
}

@media (max-width: 768px) {
    .tutorial-steps-wrapper,
    .contenido-steps-wrapper {
        padding-top: 10px;
    }

    .tutorial-steps-wrapper::before,
    .contenido-steps-wrapper::before {
        display: none;
    }

    .tutorial-steps {
        flex-wrap: wrap;
        justify-content: center;
    }

    .contenido-steps {
        justify-content: center;
    }

    .pildoras-pasos-wrapper {
        margin-top: 22px;
    }

    .pildoras-pasos {
        gap: 10px;
    }

    .pildora-paso {
        width: 100%;
        min-width: 0;
        max-width: 360px;
    }

    .imagen-chica,
    .imagen-mediana {
        max-width: 92%;
        max-height: none;
    }
}

@media (max-width: 767.98px) {
    .botones-temas {
        gap: 10px;
    }

    .botones-temas .nav-link {
        width: 100%;
        min-width: 0;
    }

    .tarjeta-elemento .contenido-texto {
        padding: 22px 20px;
    }

    .tarjeta-usos > .card-block,
    .tarjeta-definicion > .card-block {
        padding: 24px 18px 36px;
    }

    .usos-intro {
        margin-bottom: 20px;
    }

    .tarjeta-definicion > .card-block > .card-title .badge,
    .dominio-bloque h1 .badge {
        display: inline-flex;
        margin-bottom: 10px;
    }

    .tarjeta-definicion .card-horizon .background-holder {
        border-radius: 6px 6px 0 0;
    }

    .tarjeta-dominio .dominio-bloque {
        padding: 26px 20px 36px;
    }

    .tarjeta-dominio .dominio-bloque h1 {
        margin-bottom: 24px;
    }

    .tarjeta-dominio .dominio-intro-grid {
        margin-bottom: 28px;
    }

    .dominio-estructura-bloque {
        padding: 24px 18px 30px !important;
    }

    .contenido-dominio-estructura .imagen-esquema-dominio,
    .dominios-internacionales img {
        max-width: 100%;
        max-height: none;
    }

    .dominios-internacionales {
        margin-top: 24px;
        padding: 18px;
    }
}

@media (max-width: 576px) {
    .modal.modal-cva .modal-dialog {
        max-width: calc(100% - 20px);
        margin: 10px !important;
    }

    .modal.modal-cva .modal-body {
        max-height: 65vh;
        padding: 20px 15px;
    }

    .modal.modal-cva .modal-header {
        padding: 15px 15px 15px 20px;
    }

    .modal.modal-cva .btn-close {
        right: 15px;
        width: 35px;
        height: 35px;
        font-size: 24px;
    }

    .visor-imagen {
        padding: 14px;
    }

    .visor-imagen-contenido {
        max-width: 96vw;
    }

    .visor-cerrar {
        top: -10px;
        right: -6px;
        width: 40px;
        height: 40px;
        font-size: 24px;
    }

    .visor-ayuda {
        bottom: 12px;
        padding: 7px 12px;
        font-size: 0.82rem;
    }
}

/* ==========================================================================
   Espaciado estandarizado dentro de tarjetas
   --------------------------------------------------------------------------
   Toda tarjeta marcada con .tarjeta-elemento debe iniciar su contenido con
   una respiración interna uniforme de 30px.
   ========================================================================== */

.tarjeta-elemento > .card-block {
    padding: 30px;
}

/* Neutraliza márgenes superiores heredados cuando el primer bloque ya vive
   dentro de una tarjeta con padding estándar. */
.tarjeta-elemento > .card-block > .mrg-top-20:first-child,
.tarjeta-elemento > .card-block > .mrg-top-30:first-child {
    margin-top: 0 !important;
}

/* Tarjetas horizontales: el contenido textual también queda con 30px. */
.tarjeta-elemento .pdd-vertical-75,
.tarjeta-elemento .pdd-vertical-30 {
    padding-top: 30px !important;
    padding-bottom: 30px !important;
}

.tarjeta-elemento .pdd-horizon-25 {
    padding-left: 30px !important;
    padding-right: 30px !important;
}

@media (max-width: 767.98px) {
    .tarjeta-elemento > .card-block {
        padding: 24px;
    }

    .tarjeta-elemento .pdd-vertical-75,
    .tarjeta-elemento .pdd-vertical-30 {
        padding-top: 24px !important;
        padding-bottom: 24px !important;
    }

    .tarjeta-elemento .pdd-horizon-25 {
        padding-left: 24px !important;
        padding-right: 24px !important;
    }
}

/* ==========================================================================
   Instrucciones de interacción
   ========================================================================== */

.instruccion-interactiva {
    display: flex;
    align-items: center;
    gap: 10px;
    width: fit-content;
    max-width: 100%;
    margin: 14px auto;
    padding: 8px 12px;
    color: #111111;
    background: #f7f8fc;
    border: 2px solid #d2d2d7;
    border-radius: 12px;
    font-size: 0.95rem;
    line-height: 1.35;
    font-weight: 500;
}

.instruccion-interactiva::before {
    content: "\F402";
    font-family: "bootstrap-icons";
    flex: 0 0 auto;
    font-size: 1rem;
    line-height: 1;
    color: #111111;
}

@media (max-width: 767.98px) {
    .instruccion-interactiva {
        padding: 11px 14px;
        gap: 12px;
        font-size: 0.95rem;
    }

    .instruccion-icono {
        width: 22px;
        height: 33px;
    }
}

/* ==========================================================================
   Tablas
   ========================================================================== */


.info-lateral-verde.info-en-texto {
    width: 100%;
    max-width: inherit;
    margin: 22px 0;
}

.tabla-cva-wrapper {
    width: 100%;
    margin: 26px 0;
    overflow-x: auto;
}

.tabla-cva {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: #ffffff;
    border: 1px solid #dbe4f0;
    border-radius: 12px;
    overflow: hidden;
}

.tabla-cva thead th {
    padding: 11px 14px;
    background: #c7ccd3;
    color: #40506b;
    font-size: 1.08rem;
    font-weight: 700;
    text-align: center;
    border: none;
}

.tabla-cva tbody td {
    padding: 16px 18px;
    color: #66779d;
    font-size: 1.08rem;
    line-height: 1.65;
    vertical-align: middle;
    border: none;
    transition:
        background-color 0.22s ease,
        color 0.22s ease;
}

.tabla-cva tbody tr:nth-child(odd) td {
    background: #fbfcfe;
}

.tabla-cva tbody tr:nth-child(even) td {
    background: #f4f7fb;
}

.tabla-cva tbody tr:hover td {
    background: #eaf2ff;
    color: #163d8f;
}

.tabla-cva tbody td + td,
.tabla-cva thead th + th {
    border-left: 1px solid #e4eaf3;
}

.tabla-cva tbody tr + tr td {
    border-top: 1px solid #e4eaf3;
}

.tabla-cva .tabla-veredicto {
    min-width: 180px;
    color: #163d8f;
    font-size: 1.12rem;
    font-weight: 700;
    text-align: center;
}

.tabla-cva strong {
    color: inherit;
}

@media (max-width: 767.98px) {
    .tabla-cva {
        min-width: 720px;
    }
}

/* ==========================================================================
   Diagrama visual de estructura de dominio
   --------------------------------------------------------------------------
   Componente reutilizable para representar:
   "Dominio de orden secundario" + "Dominio de orden superior".
   Variante compacta en la paleta azul de las tablas CVA.
   ========================================================================== */

.diagrama-dominio {
    width: min(100%, 680px);
    margin: 16px auto 20px;
}

.diagrama-dominio-tabs {
    display: grid;
    grid-template-columns: minmax(0, 1.18fr) minmax(62px, 0.28fr) minmax(0, 1.18fr);
    gap: 2px;
    align-items: stretch;
}

.diagrama-dominio-tab {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 58px;
    padding: 10px 14px;
    color: #ffffff;
    background: #124896;
    border: 1px solid #124896;
    border-radius: 12px 12px 0 0;
    box-shadow: 0 5px 12px rgba(18, 72, 150, 0.10);
    font-size: clamp(0.82rem, 1vw, 0.94rem);
    font-weight: 700;
    line-height: 1.18;
    text-align: center;
}

.diagrama-dominio-tab.secundario,
.diagrama-dominio-tab.superior {
    background: #124896;
}

.diagrama-dominio-tab.suma {
    background: #124896;
    min-height: 58px;
    font-size: clamp(1.55rem, 2.2vw, 2rem);
    font-weight: 700;
}

.diagrama-dominio-cuerpo {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 126px;
    padding: 18px 20px 20px;
    background: #ffffff;
    border: 1.5px solid #124896;
    border-top: none;
    border-radius: 0 0 14px 14px;
    box-shadow: 0 8px 18px rgba(18, 72, 150, 0.08);
}

.diagrama-dominio-expresion {
    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    justify-items: center;
    gap: 0;
    margin-bottom: 12px;
}

.diagrama-dominio-fragmento {
    color: #111111;
    font-size: clamp(1.45rem, 2.6vw, 2.1rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1;
    text-align: center;
}

.diagrama-dominio-signo {
    color: #124896;
    font-size: clamp(1.55rem, 2.2vw, 2rem);
    font-weight: 700;
    line-height: 1;
}

.diagrama-dominio-separador {
    display: flex;
    align-items: center;
    gap: 10px;
    width: min(100%, 280px);
    margin: 0 auto 10px;
}

.diagrama-dominio-linea {
    flex: 1;
    height: 1.5px;
    background: #124896;
}

.diagrama-dominio-punto {
    flex: 0 0 auto;
    width: 8px;
    height: 8px;
    background: #124896;
    border-radius: 50%;
}

.diagrama-dominio-pie {
    margin: 0;
    color: #111111;
    font-size: clamp(0.9rem, 1.2vw, 1.02rem);
    font-weight: 500;
    line-height: 1.3;
    text-align: center;
}

@media (max-width: 767.98px) {
    .diagrama-dominio {
        width: min(100%, 520px);
        margin: 16px auto 20px;
    }

    .diagrama-dominio-tabs {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .diagrama-dominio-tab {
        min-height: 46px;
        padding: 10px 12px;
        border-radius: 11px;
        font-size: 0.82rem;
    }

    .diagrama-dominio-tab.suma {
        min-height: 46px;
        font-size: 1.6rem;
    }

    .diagrama-dominio-cuerpo {
        min-height: auto;
        margin-top: 4px;
        padding: 16px 12px 18px;
        border-top: 1.5px solid #124896;
        border-radius: 12px;
    }

    .diagrama-dominio-expresion {
        grid-template-columns: 1fr;
        gap: 0;
        margin-bottom: 12px;
    }

    .diagrama-dominio-fragmento {
        font-size: clamp(1.35rem, 7vw, 1.9rem);
    }

    .diagrama-dominio-signo {
        font-size: 1.65rem;
        line-height: 0.9;
    }

    .diagrama-dominio-separador {
        gap: 8px;
        width: min(100%, 220px);
        margin-bottom: 10px;
    }

    .diagrama-dominio-punto {
        width: 7px;
        height: 7px;
    }

    .diagrama-dominio-pie {
        font-size: 0.9rem;
    }
}

/*


*/

.pregunta-cva {
    margin-bottom: 36px;
}

.pregunta-cva-enunciado {
    margin-bottom: 16px;
    font-weight: 600;
    color: var(--cva-accent, #093b8b);
}

.opciones-cva {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.opcion-cva {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 11px 16px;
    background: var(--cva-surface-soft, #f8fafc);
    border: 1px solid var(--cva-border, #dbe4f0);
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    color: #444;
    transition: background 0.2s ease, border-color 0.2s ease;
    margin: 0;
}

.opcion-cva:hover {
    background: #eef4ff;
    border-color: #b0c8ed;
}

.opcion-cva input[type="radio"] {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    accent-color: var(--cva-accent, #093b8b);
    cursor: pointer;
    margin: 0;
}

.respuesta-cva {
    display: none;
    margin-top: 12px;
    padding: 11px 14px;
    border-radius: 8px;
    font-weight: 500;
}

.respuesta-correcta {
    background: #e4f6ea;
    color: #143d22;
    border-left: 5px solid #2f8f4e;
}

.respuesta-incorrecta {
    background: #fde8ea;
    color: #7a1c24;
    border-left: 5px solid #dc3545;
}

/* --- Resultado global --- */
.resultado-cva {
    display: none;
    margin-top: 28px;
    padding: 22px 24px;
    background: var(--cva-surface-soft, #f8fafc);
    border: 1px solid var(--cva-border, #dbe4f0);
    border-radius: 14px;
    text-align: center;
    box-shadow: var(--cva-shadow-soft, 0 8px 20px rgba(15,23,42,.08));
}

.resultado-cva.show {
    display: block;
}

.resultado-cva-puntaje {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--cva-accent, #093b8b);
    margin-bottom: 8px;
}

.resultado-cva-mensaje {
    font-size: 1rem;
    font-weight: 600;
    color: #143d22;
}

.resultado-cva.error .resultado-cva-mensaje {
    color: #7a1c24;
}

.resultado-cva.exito .resultado-cva-puntaje {
    color: #1f6f3c;
}

/* --- Widget de progreso --- */
.widget-feed {
    margin-top: 30px;
}

.feed-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.feed-subtitle {
    font-size: 1rem;
    color: var(--cva-text-soft, #667085);
    margin-bottom: 10px;
}

@media (max-width: 767.98px) {
    .opcion-cva {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
}