/*
   arText - Portada pública y navegador de ámbitos

   Recupera la estructura y la identidad del sistema anterior: azul de marca
   #006fc0, radios de 20px, logotipos por sistema y navegación por anclas.
   El tratamiento (retículas, sombras, transiciones) es el del sistema actual.
*/

:root {
  --brand: #006fc0;
  --brand-dark: #005596;
  --brand-darker: #00447a;
  --brand-soft: rgba(0, 111, 192, 0.08);
  --brand-softer: rgba(0, 111, 192, 0.04);
  --brand-line: rgba(0, 111, 192, 0.18);
  --brand-grey: #7f7f7f;
  --radius-brand: 20px;
}

/* ------------------------------------------------------------------ *
 * Barra de navegación de las páginas públicas
 * ------------------------------------------------------------------ */

.topbar-nav .nav-anchor {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  color: var(--text-main);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 10px;
  transition: var(--transition-smooth);
}

.topbar-nav .nav-anchor:hover {
  color: var(--brand);
  background: var(--brand-soft);
}

.topbar-nav .nav-anchor.is-active {
  color: var(--brand);
  background: var(--brand-soft);
}

/* ------------------------------------------------------------------ *
 * Estructura general
 * ------------------------------------------------------------------ */

/* Las bandas ocupan todo el ancho; la retícula la fija cada sección */
.shell:has(.home-page),
.shell:has(.fields-page) {
  max-width: none;
  padding: 0;
}

.home-page {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
  overflow-x: clip;
}

.home-section {
  padding: 88px 32px;
}

.home-section-alt {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.home-inner {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
}

.home-heading {
  margin-bottom: 48px;
  text-align: center;
}

.home-heading h2 {
  margin: 0 0 14px;
  color: var(--brand);
  font-family: var(--font-heading);
  font-size: 38px;
  font-weight: 700;
  line-height: 1.15;
}

.home-heading p {
  max-width: 780px;
  margin: 0 auto;
  color: var(--text-muted);
  font-size: 17px;
  font-weight: 300;
  line-height: 1.7;
}

.home-heading a {
  color: var(--brand);
  text-decoration: none;
  border-bottom: 1px solid var(--brand-line);
}

.home-heading a:hover {
  border-bottom-color: var(--brand);
}

/* ------------------------------------------------------------------ *
 * Portada: ¿Qué necesitas redactar?
 * ------------------------------------------------------------------ */

.home-hero {
  position: relative;
  padding: 76px 32px 92px;
  overflow: hidden;
  background:
    radial-gradient(1100px 520px at 50% -8%, rgba(0, 111, 192, 0.09), transparent 68%),
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

/* Retícula tenue de fondo, heredada del tratamiento actual */
.home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 111, 192, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 111, 192, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(760px 380px at 50% 0%, #000 25%, transparent 78%);
  -webkit-mask-image: radial-gradient(760px 380px at 50% 0%, #000 25%, transparent 78%);
  pointer-events: none;
}

.home-hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
}

.home-hero-title {
  margin: 0;
  color: var(--brand);
  font-family: var(--font-heading);
  font-size: 52px;
  font-weight: 700;
  line-height: 1.08;
  text-align: center;
  letter-spacing: -0.5px;
}

.home-hero-subtitle {
  margin: 12px 0 0;
  color: var(--brand);
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 400;
  text-align: center;
}

.home-choices {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-top: 56px;
}

/* Cada sistema conserva su logotipo y su acceso propio */
.home-choice {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px 32px 36px;
  text-align: center;
  text-decoration: none;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-brand);
  box-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.04);
  transition: var(--transition-smooth);
}

.home-choice:hover {
  transform: translateY(-4px);
  border-color: var(--brand-line);
  box-shadow: 0 18px 34px -12px rgba(0, 111, 192, 0.22);
}

.home-choice-logo {
  height: 128px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.home-choice-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 340px;
  min-height: 76px;
  margin-top: 32px;
  padding: 14px 22px;
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.3;
  background: var(--brand);
  border: 1px solid transparent;
  border-radius: var(--radius-brand);
  box-shadow: 0 8px 18px -8px rgba(0, 111, 192, 0.55);
  transition: var(--transition-smooth);
}

.home-choice:hover .home-choice-action {
  color: var(--brand);
  background: #ffffff;
  border-color: var(--brand);
  box-shadow: 0 8px 18px -10px rgba(0, 111, 192, 0.35);
}

.home-choice-action i {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform 0.2s ease;
}

.home-choice:hover .home-choice-action i {
  transform: translateX(3px);
}

/* ------------------------------------------------------------------ *
 * ¿Qué es arText?: seis tarjetas
 * ------------------------------------------------------------------ */

.home-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.home-card {
  padding: 32px 26px;
  text-align: center;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-brand);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.home-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand-line);
  box-shadow: 0 14px 28px -12px rgba(15, 23, 42, 0.14);
}

.home-card-icon {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  margin: 0 auto 20px;
  color: var(--brand);
  background: var(--brand-soft);
  border-radius: 16px;
  transition: var(--transition-smooth);
}

.home-card-icon i {
  width: 28px;
  height: 28px;
}

.home-card:hover .home-card-icon {
  color: #ffffff;
  background: var(--brand);
}

.home-card-title {
  margin: 0 0 10px;
  color: var(--text-main);
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.3;
}

.home-card-desc {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 300;
  line-height: 1.65;
}

/* ------------------------------------------------------------------ *
 * ¿Cómo se usa arText?: vídeo, manual y texto de prueba
 * ------------------------------------------------------------------ */

.home-resources {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 28px;
  align-items: start;
}

.home-resource {
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: center;
}

.home-resource-label {
  margin: 0;
  color: var(--brand-grey);
  font-size: 15px;
  font-weight: 500;
}

.home-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-brand);
  box-shadow: var(--shadow-lg);
}

.home-cover {
  display: block;
  border-radius: var(--radius-brand);
  transition: var(--transition-smooth);
}

.home-cover img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-brand);
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
}

.home-cover:hover img {
  transform: translateY(-4px);
  border-color: var(--brand-line);
  box-shadow: 0 18px 30px -12px rgba(15, 23, 42, 0.22);
}

/* ------------------------------------------------------------------ *
 * Contacto
 * ------------------------------------------------------------------ */

.home-contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  max-width: 720px;
  margin: 0 auto;
}

.home-contact-form .home-field-wide {
  grid-column: 1 / -1;
}

.home-contact-form input,
.home-contact-form textarea {
  width: 100%;
  padding: 14px 18px;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 15px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-brand);
  transition: var(--transition-smooth);
}

.home-contact-form textarea {
  min-height: 150px;
  resize: vertical;
}

.home-contact-form input:focus,
.home-contact-form textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 4px var(--brand-soft);
}

.home-contact-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  justify-self: center;
  grid-column: 1 / -1;
  min-height: 48px;
  margin-top: 8px;
  padding: 0 34px;
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  background: var(--brand);
  border: 1px solid transparent;
  border-radius: var(--radius-brand);
  box-shadow: 0 8px 18px -8px rgba(0, 111, 192, 0.55);
  transition: var(--transition-smooth);
}

.home-contact-submit:hover {
  color: var(--brand);
  background: #ffffff;
  border-color: var(--brand);
}

/* ------------------------------------------------------------------ *
 * Navegador de ámbitos especializados
 * ------------------------------------------------------------------ */

.fields-page {
  padding: 56px 32px 88px;
  background:
    radial-gradient(900px 420px at 22% -6%, rgba(0, 111, 192, 0.07), transparent 66%),
    linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.fields-layout {
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
}

/* Columna izquierda: identidad del sistema elegido */
.fields-aside {
  position: sticky;
  top: 96px;
  text-align: center;
}

.fields-aside-logo {
  display: inline-block;
}

.fields-aside-logo img {
  height: 104px;
  width: auto;
  transition: var(--transition-smooth);
}

.fields-aside-logo:hover img {
  transform: translateY(-2px);
}

.fields-aside-claim {
  margin: 20px 0 0;
  color: var(--brand-grey);
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 300;
  line-height: 1.5;
}

.fields-main {
  padding-left: 48px;
  border-left: 1px solid var(--border-color);
}

.fields-main-title {
  margin: 0 0 28px;
  color: var(--text-main);
  font-family: var(--font-heading);
  font-size: 21px;
  font-weight: 300;
  line-height: 1.5;
}

.fields-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Acordeón: un ámbito despliega sus géneros, como en el sistema anterior */
.field-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-brand);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.field-item:hover {
  border-color: var(--brand-line);
  box-shadow: var(--shadow-md);
}

.field-item[open] {
  border-color: var(--brand-line);
  box-shadow: 0 12px 26px -14px rgba(0, 111, 192, 0.35);
}

.field-toggle {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  cursor: pointer;
  list-style: none;
  transition: var(--transition-smooth);
}

.field-toggle::-webkit-details-marker {
  display: none;
}

.field-toggle:hover,
.field-item[open] .field-toggle {
  background: var(--brand-softer);
}

.field-icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  color: var(--brand);
  background: var(--brand-soft);
  border-radius: 12px;
  transition: var(--transition-smooth);
}

.field-icon i {
  width: 22px;
  height: 22px;
}

.field-item[open] .field-icon {
  color: #ffffff;
  background: var(--brand);
}

.field-name {
  flex: 1;
  color: var(--text-main);
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.field-item[open] .field-name,
.field-toggle:hover .field-name {
  color: var(--brand);
}

.field-count {
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 400;
}

.field-chevron {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: transform 0.25s ease;
}

.field-item[open] .field-chevron {
  transform: rotate(180deg);
  color: var(--brand);
}

.field-genres {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 4px 22px 22px 80px;
}

.field-genre {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 10px 16px;
  color: var(--text-main);
  font-size: 15px;
  text-decoration: none;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  transition: var(--transition-smooth);
}

.field-genre:hover {
  color: var(--brand);
  background: var(--brand-softer);
  border-color: var(--brand-line);
  transform: translateX(3px);
}

.field-genre-arrow {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  color: var(--brand);
}

.field-genre-name {
  flex: 1;
}

/* Distintivo de los géneros disponibles también en lenguaje claro */
.field-genre-claro {
  height: 22px;
  width: auto;
  flex-shrink: 0;
}

/* ------------------------------------------------------------------ *
 * Adaptación a pantallas menores
 * ------------------------------------------------------------------ */

@media (max-width: 1024px) {
  .home-resources {
    grid-template-columns: 1fr 1fr;
  }

  .home-resources .home-resource:first-child {
    grid-column: 1 / -1;
  }

  .home-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .fields-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .fields-aside {
    position: static;
  }

  .fields-main {
    padding-left: 0;
    border-left: none;
  }
}

@media (max-width: 720px) {
  .home-section,
  .home-hero,
  .fields-page {
    padding-left: 20px;
    padding-right: 20px;
  }

  .home-hero-title {
    font-size: 34px;
  }

  .home-hero-subtitle {
    font-size: 21px;
  }

  .home-heading h2 {
    font-size: 28px;
  }

  .home-choices,
  .home-cards,
  .home-resources,
  .home-contact-form {
    grid-template-columns: 1fr;
  }

  .home-choice-logo {
    height: 96px;
  }

  .field-genres {
    padding-left: 22px;
  }
}