/**
 * categorias_udemy.css
 * Diseño estilo Udemy para categorias_2.php
 * Instituto Jiménez — Cursos Libres
 * Paleta: #006CB6 (primario) · #FEDC09 (amarillo) · #F9B036 (naranja)
 */

/* ════════════════════════════════════════
   VARIABLES LOCALES
════════════════════════════════════════ */
.ud-page {
  --ud-white:       #ffffff;
  --ud-gray-50:     #f7f9fa;
  --ud-gray-100:    #f2f4f6;
  --ud-gray-200:    #d1d7dc;
  --ud-gray-400:    #6a6f73;
  --ud-gray-600:    #3d3d3d;
  --ud-dark:        #1c1d1f;
  --ud-brand:       #006CB6;
  --ud-brand-hov:   #005a9a;
  --ud-brand-light: #e8f4fc;
  --ud-yellow:      #FEDC09;
  --ud-yellow-dark: #d4b800;
  --ud-orange:      #F9B036;
  --ud-orange-dark: #e08600;
  --ud-r-xs:        4px;
  --ud-r:           8px;
  --ud-r-lg:        14px;
  --ud-shadow-sm:   0 2px 4px rgba(0,0,0,0.07);
  --ud-shadow:      0 4px 16px rgba(0,0,0,0.10);
  --ud-shadow-lg:   0 10px 32px rgba(0,0,0,0.14);
  --ud-t:           0.2s ease;
}

/* ════════════════════════════════════════
   BASE DE PÁGINA
════════════════════════════════════════ */
.ud-page {
  background: var(--ud-white);
  color: var(--ud-dark);
  font-family: 'Poppins', system-ui, -apple-system, sans-serif;
}

.ud-page a {
  transition: color var(--ud-t);
}

.ud-container {
  width: min(1200px, 92%);
  margin-inline: auto;
}

/* Navbar override: sólida azul sobre fondo blanco */
.ud-page .topbar {
  background: var(--ud-brand);
  border-bottom: 2px solid rgba(0,0,0,0.12);
}

/* ════════════════════════════════════════
   HERO
════════════════════════════════════════ */
.ud-hero {
  position: relative;
  background: linear-gradient(135deg, #f0f8ff 0%, #e6f2fc 45%, #fffce6 100%);
  overflow: hidden;
}

/* Círculos decorativos — eco del concepto de ea-cta-final */
.ud-hero::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  pointer-events: none;
}

.ud-hero::after {
  content: '';
  position: absolute;
  bottom: -120px;
  left: -70px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(249, 176, 54, 0.1);
  pointer-events: none;
}

.ud-hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 72px 0 80px;
}

.ud-hero__eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ud-brand);
  background: rgba(0,108,182,0.08);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.ud-hero__title {
  font-size: clamp(2.2rem, 3.5vw + 0.8rem, 3.6rem);
  font-weight: 800;
  color: var(--ud-dark);
  line-height: 1.14;
  margin: 0 0 18px;
  letter-spacing: -0.02em;
}

.ud-hero__sub {
  font-size: 1.05rem;
  color: var(--ud-gray-400);
  line-height: 1.65;
  margin: 0 0 32px;
  max-width: 46ch;
}

.ud-hero__sub strong {
  color: var(--ud-dark);
  font-weight: 700;
}

/* ── Barra de búsqueda ── */
.ud-searchbar {
  display: flex;
  align-items: center;
  background: var(--ud-white);
  border: 2px solid var(--ud-dark);
  border-radius: var(--ud-r-lg);
  overflow: hidden;
  box-shadow: var(--ud-shadow);
  transition: border-color var(--ud-t), box-shadow var(--ud-t);
  max-width: 520px;
}

.ud-searchbar:focus-within {
  border-color: var(--ud-brand);
  box-shadow: 0 0 0 3px rgba(0,108,182,0.18), var(--ud-shadow);
}

.ud-searchbar svg {
  flex-shrink: 0;
  margin: 0 12px;
  color: var(--ud-gray-400);
}

.ud-searchbar input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1rem;
  font-family: inherit;
  color: var(--ud-dark);
  background: transparent;
  padding: 15px 0;
  min-width: 0;
}

.ud-searchbar input::placeholder {
  color: var(--ud-gray-400);
}

.ud-searchbar__btn {
  flex-shrink: 0;
  background: var(--ud-brand);
  color: white;
  border: none;
  padding: 15px 22px;
  font-size: 0.92rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--ud-t);
  white-space: nowrap;
}

.ud-searchbar__btn:hover {
  background: var(--ud-brand-hov);
}

/* ── Tags en hero ── */
.ud-hero__tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin-top: 22px;
}

.ud-hero__tag-label {
  font-size: 0.85rem;
  color: var(--ud-gray-400);
  font-weight: 500;
}

.ud-hero__tag {
  font-size: 0.83rem;
  color: var(--ud-brand);
  text-decoration: underline;
  font-weight: 600;
  cursor: pointer;
}

.ud-hero__tag:hover {
  color: var(--ud-brand-hov);
}

/* ── Visual derecho ── */
.ud-hero__visual {
  position: relative;
}

.ud-hero__img-wrap {
  border-radius: var(--ud-r-lg);
  overflow: hidden;
  box-shadow: var(--ud-shadow-lg);
  aspect-ratio: 4 / 3;
}

.ud-hero__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Badges flotantes */
.ud-hero__badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--ud-white);
  border-radius: var(--ud-r-lg);
  padding: 12px 18px;
  box-shadow: var(--ud-shadow-lg);
  border: 1px solid var(--ud-gray-200);
  animation: ud-float 3.5s ease-in-out infinite;
  z-index: 2;
}

.ud-hero__badge--tl {
  top: -20px;
  left: -28px;
  animation-delay: 0s;
}

.ud-hero__badge--br {
  bottom: -20px;
  right: -28px;
  animation-delay: 1.75s;
}

@keyframes ud-float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-7px); }
}

.ud-badge-icon {
  font-size: 1.7rem;
  line-height: 1;
}

.ud-hero__badge strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--ud-dark);
  line-height: 1.25;
}

.ud-hero__badge small {
  font-size: 0.72rem;
  color: var(--ud-gray-400);
}

/* ════════════════════════════════════════
   TABS DE CATEGORÍAS (sticky)
════════════════════════════════════════ */
.ud-tabs-wrap {
  background: var(--ud-white);
  border-bottom: 1px solid var(--ud-gray-200);
  position: sticky;
  top: 64px;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.ud-tabs {
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  scroll-snap-type: x proximity;
}

.ud-tabs::-webkit-scrollbar {
  display: none;
}

.ud-tab {
  flex-shrink: 0;
  padding: 16px 20px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ud-gray-400);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  font-family: inherit;
  transition: color var(--ud-t), border-color var(--ud-t);
  white-space: nowrap;
  scroll-snap-align: start;
  position: relative;
  top: 1px; /* offset del border-bottom del wrapper */
}

.ud-tab:hover {
  color: var(--ud-dark);
}

.ud-tab.active {
  color: var(--ud-dark);
  border-bottom-color: var(--ud-brand);
  font-weight: 700;
}

/* ════════════════════════════════════════
   CONTENIDO PRINCIPAL
════════════════════════════════════════ */
.ud-main {
  padding: 15px 0 15px;
  background: var(--ud-white);
  min-height: 50vh;
}

/* ── Encabezado de sección ── */
.ud-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.ud-section-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ud-dark);
  margin: 0;
  padding-bottom: 4px;
  border-bottom: thin solid #ccc;
}

.ud-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ud-gray-100);
  color: var(--ud-gray-600);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 999px;
  min-width: 24px;
}

/* ── Toggles de vista ── */
.ud-view-toggle {
  display: flex;
  gap: 3px;
  background: var(--ud-gray-100);
  border-radius: var(--ud-r-xs);
  padding: 3px;
}

.ud-view-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7px 10px;
  border: none;
  background: transparent;
  border-radius: var(--ud-r-xs);
  cursor: pointer;
  color: var(--ud-gray-400);
  transition: all var(--ud-t);
}

.ud-view-btn.active,
.ud-view-btn:hover {
  background: var(--ud-white);
  color: var(--ud-dark);
  box-shadow: var(--ud-shadow-sm);
}

/* ════════════════════════════════════════
   GRID DE CATEGORÍAS
════════════════════════════════════════ */
.ud-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* Vista lista */
.ud-grid.list-view {
  grid-template-columns: 1fr;
  gap: 10px;
}

.ud-grid.list-view .ud-card__link {
  flex-direction: row;
}

.ud-grid.list-view .ud-card__thumb {
  width: 160px;
  min-height: 100px;
  flex-shrink: 0;
  aspect-ratio: unset;
}

.ud-grid.list-view .ud-card__body {
  padding: 18px 20px;
}

.ud-grid.list-view .ud-card__desc {
  -webkit-line-clamp: 3;
}

.ud-grid.list-view .ud-card:hover {
  transform: translateX(4px);
}

/* ════════════════════════════════════════
   TARJETA DE CATEGORÍA
════════════════════════════════════════ */
.ud-card {
  border: 1px solid var(--ud-gray-200);
  border-radius: var(--ud-r);
  overflow: hidden;
  background: var(--ud-white);
  transition:
    transform var(--ud-t),
    box-shadow var(--ud-t),
    border-color var(--ud-t);
  box-shadow: var(--ud-shadow-sm);
  /* animación entrada */
  opacity: 0;
  transform: translateY(18px);
}

.ud-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.ud-card:hover {
  box-shadow: var(--ud-shadow-lg);
  transform: translateY(-5px);
  border-color: var(--ud-orange);
}

.ud-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

/* ── Thumbnail ── */
.ud-card__thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 0 0 10px 14px;
}

.ud-card__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
  opacity: 0.55;
}

.ud-card:hover .ud-card__img {
  transform: scale(1.07);
  opacity: 0.45;
}

.ud-card__icon-wrap {
  position: relative;
  z-index: 2;
  padding-bottom: 2px;
}

.ud-card__emoji {
  font-size: 2.1rem;
  line-height: 1;
  display: inline-block;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.20));
}

.ud-card__count-chip {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 3;
  background: rgba(255,255,255,0.92);
  color: var(--ud-dark);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--ud-gray-200);
  letter-spacing: 0.01em;
  backdrop-filter: blur(4px);
}

/* ── Cuerpo ── */
.ud-card__body {
  padding: 14px 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.ud-card__title {
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--ud-dark);
  margin: 0;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ud-card__desc {
  font-size: 0.8rem;
  color: var(--ud-gray-400);
  line-height: 1.55;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ud-card__footer {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--ud-gray-100);
}

.ud-card__cta {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ud-brand);
  transition: color var(--ud-t);
}

.ud-card:hover .ud-card__cta {
  color: var(--ud-orange-dark);
}

/* ════════════════════════════════════════
   ESTADO VACÍO
════════════════════════════════════════ */
.ud-empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--ud-gray-400);
}

.ud-empty__icon {
  font-size: 3.5rem;
  margin-bottom: 18px;
  display: block;
}

.ud-empty h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--ud-dark);
  margin: 0 0 10px;
}

.ud-empty p {
  font-size: 0.95rem;
  margin: 0 0 28px;
}

/* ════════════════════════════════════════
   BOTONES COMPARTIDOS
════════════════════════════════════════ */
.ud-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 700;
  font-family: inherit;
  padding: 13px 24px;
  border-radius: var(--ud-r-xs);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--ud-t);
  text-decoration: none;
  white-space: nowrap;
}

.ud-btn--primary {
  background: var(--ud-orange);
  color: var(--ud-dark);
  border-color: var(--ud-orange);
}

.ud-btn--primary:hover {
  background: var(--ud-orange-dark);
  border-color: var(--ud-orange-dark);
}

.ud-btn--outline {
  background: transparent;
  color: var(--ud-brand);
  border-color: var(--ud-brand);
}

.ud-btn--outline:hover {
  background: var(--ud-brand);
  color: white;
}

.ud-btn--outline-dark {
  background: transparent;
  color: var(--ud-dark);
  border-color: var(--ud-dark);
}

.ud-btn--outline-dark:hover {
  background: var(--ud-dark);
  color: white;
}

/* ════════════════════════════════════════
   ESTADÍSTICAS
════════════════════════════════════════ */
.ud-stats {
  background: var(--ud-dark);
  color: white;
  padding: 64px 0;
}

.ud-stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.ud-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 20px;
  border-radius: var(--ud-r);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  transition: background var(--ud-t);
}

.ud-stat:hover {
  background: rgba(255,255,255,0.08);
}

.ud-stat__num {
  display: block;
  font-size: clamp(2rem, 3vw + 0.5rem, 3rem);
  font-weight: 800;
  color: var(--ud-yellow);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.ud-stat__label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  font-weight: 500;
}

/* ════════════════════════════════════════
   HERRAMIENTAS Y COMUNIDAD
════════════════════════════════════════ */
.ij-tools {
  padding: 64px 0;
  background: var(--ud-gray-50);
  border-top: 1px solid var(--ud-gray-200);
}

.ij-tools__header {
  margin-bottom: 36px;
}

.ij-tools__title {
  font-size: clamp(1.45rem, 2.2vw + 0.4rem, 2.1rem);
  font-weight: 800;
  color: var(--ud-dark);
  margin: 0 0 10px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.ij-tools__sub {
  font-size: 1rem;
  color: var(--ud-gray-400);
  line-height: 1.65;
  margin: 0;
  max-width: 62ch;
}

/* ── Grid de 4 cards ── */
.ij-tools__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

/* ── Card ── */
/* El <a> externo es solo el área de hit — nunca se transforma.
   El ::after extiende el área de detección 6px hacia abajo (= translateY),
   garantizando que el cursor no escape de la zona hover al subir la card. */
.ij-tool-card {
  border-radius: 14px;
  overflow: visible;
  background: transparent;
  border: none;
  box-shadow: none;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  position: relative;
}

.ij-tool-card::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  top: 0; bottom: -6px;
}

.ij-tool-card__inner {
  border-radius: 14px;
  overflow: hidden;
  background: var(--ud-white);
  border: 1px solid var(--ud-gray-200);
  box-shadow: var(--ud-shadow-sm);
  transition: transform var(--ud-t), box-shadow var(--ud-t), border-color var(--ud-t);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.ij-tool-card:hover .ij-tool-card__inner {
  transform: translateY(-5px);
  box-shadow: var(--ud-shadow-lg);
  border-color: transparent;
}

/* Sección visual (gradiente) */
.ij-tool-card__visual {
  padding: 24px 20px 20px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  min-height: 96px;
  position: relative;
}

.ij-tool-card__icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: rgba(255,255,255,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: background var(--ud-t), transform var(--ud-t);
}

.ij-tool-card:hover .ij-tool-card__icon {
  background: rgba(255,255,255,0.26);
  transform: scale(1.06);
}

/* Badge Beta */
.ij-tool-card__badge {
  font-size: 0.62rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(255,255,255,0.22);
  color: #fff;
  align-self: flex-start;
  border: 1px solid rgba(255,255,255,0.35);
}

/* Cuerpo */
.ij-tool-card__body {
  padding: 18px 20px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.ij-tool-card__title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--ud-dark);
  margin: 0;
  line-height: 1.3;
}

.ij-tool-card__desc {
  font-size: 0.82rem;
  color: var(--ud-gray-400);
  line-height: 1.62;
  margin: 0;
  flex: 1;
}

.ij-tool-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ud-brand);
  margin-top: 6px;
  transition: gap var(--ud-t), color var(--ud-t);
}

.ij-tool-card:hover .ij-tool-card__cta {
  gap: 9px;
  color: var(--ud-brand-hov);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .ij-tools__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .ij-tools {
    padding: 48px 0;
  }
  .ij-tools__grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

/* ════════════════════════════════════════
   CTA CORPORATIVA
════════════════════════════════════════ */
.ud-cta-corp {
  padding: 88px 0;
  background: var(--ud-white);
  border-top: 1px solid var(--ud-gray-200);
}

.ud-cta-corp__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.ud-cta-corp__eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ud-brand);
  background: rgba(0,108,182,0.08);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.ud-cta-corp__title {
  font-size: clamp(1.6rem, 2.5vw + 0.5rem, 2.6rem);
  font-weight: 800;
  color: var(--ud-dark);
  margin: 0 0 16px;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.ud-cta-corp__sub {
  font-size: 1rem;
  color: var(--ud-gray-400);
  line-height: 1.7;
  margin: 0 0 24px;
  max-width: 44ch;
}

.ud-cta-corp__features {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ud-cta-corp__features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ud-gray-600);
}

.ud-cta-corp__features svg {
  color: var(--ud-brand);
  flex-shrink: 0;
}

.ud-cta-corp__btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Visual derecho */
.ud-cta-corp__visual {
  position: relative;
}

.ud-cta-corp__img {
  border-radius: var(--ud-r-lg);
  overflow: hidden;
  box-shadow: var(--ud-shadow-lg);
  aspect-ratio: 4 / 3;
}

.ud-cta-corp__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.ud-cta-corp__badge {
  position: absolute;
  bottom: -20px;
  left: -24px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--ud-yellow);
  color: var(--ud-dark);
  border-radius: var(--ud-r-lg);
  padding: 14px 20px;
  box-shadow: var(--ud-shadow-lg);
  font-weight: 700;
  font-size: 0.85rem;
}

.ud-cta-badge__icon {
  font-size: 1.8rem;
  line-height: 1;
}

.ud-cta-corp__badge strong {
  display: block;
  font-weight: 800;
  font-size: 0.9rem;
}

.ud-cta-corp__badge small {
  font-size: 0.72rem;
  font-weight: 500;
  opacity: 0.75;
}

/* ════════════════════════════════════════
   FOOTER
════════════════════════════════════════ */
.ud-footer {
  background: var(--ud-dark);
  color: rgba(255,255,255,0.65);
  padding: 44px 0 32px;
  font-size: 0.88rem;
}

.ud-footer__top {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 48px;
  align-items: flex-start;
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.ud-footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: white;
  font-size: 1rem;
  flex-shrink: 0;
}

.ud-footer__logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: var(--ud-r-xs);
}

.ud-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  flex: 1;
}

.ud-footer__nav a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  transition: color var(--ud-t);
}

.ud-footer__nav a:hover {
  color: white;
}

.ud-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.ud-footer__copy {
  color: rgba(255,255,255,0.35);
  font-size: 0.78rem;
}

.ud-footer__location {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  transition: color var(--ud-t);
}

.ud-footer__location:hover {
  color: var(--ud-yellow);
}

/* ════════════════════════════════════════
   ANIMACIONES
════════════════════════════════════════ */
@keyframes ud-float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-7px); }
}

@keyframes ud-fadein {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

.ud-card.visible {
  animation: ud-fadein 0.45s ease both;
}

/* ════════════════════════════════════════
   RESPONSIVE — TABLET (≤ 1024px)
════════════════════════════════════════ */
@media (max-width: 1024px) {
  .ud-hero__inner {
    gap: 36px;
    padding: 56px 0 64px;
  }

  .ud-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .ud-stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .ud-cta-corp__inner {
    gap: 48px;
  }

  .ud-hero__badge--tl { left: -16px; }
  .ud-hero__badge--br { right: -16px; }
}

/* ════════════════════════════════════════
   RESPONSIVE — MOBILE (≤ 768px)
════════════════════════════════════════ */
@media (max-width: 768px) {
  .ud-hero__inner {
    grid-template-columns: 1fr;
    padding: 40px 0 32px;
    gap: 28px;
  }

  /* Imagen primero en mobile */
  .ud-hero__visual {
    order: -1;
  }

  .ud-hero__img-wrap {
    aspect-ratio: 16 / 9;
  }

  .ud-hero__badge--tl,
  .ud-hero__badge--br {
    display: none;
  }

  .ud-hero__sub {
    max-width: 100%;
  }

  .ud-searchbar {
    max-width: 100%;
  }

  .ud-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .ud-cta-corp__inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .ud-cta-corp__visual {
    order: -1;
  }

  .ud-cta-corp__badge {
    display: none;
  }

  .ud-footer__top {
    flex-direction: column;
    gap: 16px;
  }
}

/* ════════════════════════════════════════
   RESPONSIVE — MOBILE PEQUEÑO (≤ 480px)
════════════════════════════════════════ */
@media (max-width: 480px) {
  .ud-hero__visual {
    display: block;
  }

  .ud-hero__inner {
    padding: 36px 0 28px;
  }

  .ud-hero__title {
    font-size: clamp(1.7rem, 7vw, 2.4rem);
  }

  .ud-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .ud-stats__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ud-tab {
    padding: 14px 14px;
    font-size: 0.83rem;
  }

  .ud-searchbar__btn {
    padding: 14px 14px;
    font-size: 0.83rem;
  }

  .ud-cta-corp {
    padding: 56px 0;
  }

  .ud-cta-corp__btns {
    flex-direction: column;
  }

  .ud-btn {
    width: 100%;
    justify-content: center;
  }
}

/* ════════════════════════════════════════
   ACCESIBILIDAD
════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  .ud-card,
  .ud-hero__badge {
    animation: none !important;
    transition: none !important;
    transform: none !important;
    opacity: 1 !important;
  }
}

/* ══════════════════════════════════════════════════════
   Hero — fondo brand azul (confirmado 2026-03-23)
   ROLLBACK: .claude/development/hero-cursos-rollback.md
══════════════════════════════════════════════════════ */

/* Fondo sólido azul corporativo */
.ud-hero {
  background: var(--ud-brand);
}

/* Eyebrow: píldora con fondo blanco semitransparente, texto amarillo */
.ud-hero__eyebrow {
  color: var(--ud-yellow);
  background: rgba(255, 255, 255, 0.15);
}

/* Título principal: blanco puro, weight ligero */
.ud-hero__title {
  color: var(--ud-white);
  font-weight: 400;
}

/* Subtítulo: blanco con opacidad suave */
.ud-hero__sub {
  color: rgba(255, 255, 255, 0.88);
}

/* Palabras destacadas en el subtítulo: amarillo */
.ud-hero__sub strong {
  color: var(--ud-yellow);
  font-weight: 700;
}

/* Search bar: sin padding vertical, align-items stretch para que el botón llene todo el alto */
.ud-searchbar {
  border-color: rgba(255, 255, 255, 0.35);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
  align-items: stretch;
  padding: 0;
}

.ud-searchbar svg {
  margin: 0 12px;
  align-self: center;
  color: #9fa3a9;
}

.ud-searchbar input {
  padding: 15px 0;
}

.ud-searchbar:focus-within {
  border-color: rgba(255, 255, 255, 0.75);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2), 0 4px 20px rgba(0, 0, 0, 0.18);
}

/* Botón buscar: amarillo, llena el alto completo, borde izquierdo como separador */
.ud-searchbar__btn {
  background: var(--ud-yellow);
  color: var(--ud-dark);
  align-self: stretch;
  border-left: 2px solid rgba(0, 0, 0, 0.08);
  border-radius: 0 var(--ud-r-lg) var(--ud-r-lg) 0;
  padding: 0 22px;
}

.ud-searchbar__btn:hover {
  background: var(--ud-orange);
  color: var(--ud-dark);
}

/* Tags populares: texto blanco atenuado + links naranja */
.ud-hero__tag-label {
  color: rgba(255, 255, 255, 0.65);
}

.ud-hero__tag {
  color: var(--ud-orange);
}

.ud-hero__tag:hover {
  color: var(--ud-yellow);
}

/* ══ FIN EXPERIMENTAL ══ */

/* ════════════════════════════════════════
   SECCIÓN: HABILIDADES + CARRUSEL
════════════════════════════════════════ */
.ud-skills {
  background: var(--ud-gray-50);
  padding: 72px 0 30px;
  border-bottom: 1px solid var(--ud-gray-200);
}

/* ── Encabezado ── */
.ud-skills__header {
  max-width: 740px;
  margin-bottom: 36px;
}

.ud-skills__title {
  font-size: clamp(1.25rem, 1.8vw + 0.4rem, 1.85rem);
  font-weight: 800;
  color: var(--ud-dark);
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin: 0 0 14px;
}

.ud-skills__sub {
  font-size: 1.05rem;
  color: var(--ud-gray-400);
  line-height: 1.65;
  margin: 0;
}

/* ── Tabs de habilidades (pills) ── */
.ud-skill-tabs {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 8px;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 4px;
  margin-bottom: 28px;
}

.ud-skill-tabs::-webkit-scrollbar {
  display: none;
}

.ud-skill-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  padding: 9px 20px;
  border-radius: 999px;
  border: 1.5px solid var(--ud-gray-200);
  background: var(--ud-white);
  color: var(--ud-gray-600);
  font-size: 0.87rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--ud-t);
}

.ud-skill-tab__svg {
  flex-shrink: 0;
  stroke: var(--ud-brand);
  transition: stroke var(--ud-t);
}

.ud-skill-tab:hover {
  border-color: var(--ud-brand);
  color: var(--ud-brand);
  background: var(--ud-brand-light);
}

.ud-skill-tab.active {
  background: var(--ud-brand);
  border-color: var(--ud-brand);
  color: var(--ud-white);
  box-shadow: 0 2px 8px rgba(0, 108, 182, 0.28);
}

.ud-skill-tab.active .ud-skill-tab__svg {
  stroke: #fff;
}

/* ── Carrusel ── */
.ud-skills__carousel-area {
  position: relative;
}

/* Paneles: solo el activo es visible */
.ud-skills__panel {
  display: none;
}

.ud-skills__panel.active {
  display: block;
  animation: skillsPanelIn 0.3s ease;
}

@keyframes skillsPanelIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Track horizontal del carrusel */
.ud-carr-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 8px 4px 20px;
  margin: 0 -4px;
  cursor: grab;
}

.ud-carr-track::-webkit-scrollbar {
  display: none;
}

.ud-carr-track:active {
  cursor: grabbing;
}

/* Imágenes del carrusel: opacidad completa (sin texto encima) */
.ud-skills__panel .ud-card__img {
  opacity: 1;
}
.ud-skills__panel .ud-card:hover .ud-card__img {
  opacity: 1;
}

/* Cards dentro del carrusel: ancho fijo, no encogen */
.ud-skills__panel .ud-card {
  flex-shrink: 0;
  width: 270px;
  scroll-snap-align: start;
  /* Override de la animación de entrada del grid (no usa observer aquí) */
  opacity: 1;
  transform: none;
  animation: none;
}

/* Animación escalonada al activar el panel */
.ud-skills__panel.active .ud-card {
  opacity: 0;
  animation: ud-fadein 0.42s ease both;
}

.ud-skills__panel.active .ud-card:nth-child(1) { animation-delay: 0ms;   }
.ud-skills__panel.active .ud-card:nth-child(2) { animation-delay: 60ms;  }
.ud-skills__panel.active .ud-card:nth-child(3) { animation-delay: 120ms; }
.ud-skills__panel.active .ud-card:nth-child(4) { animation-delay: 180ms; }
.ud-skills__panel.active .ud-card:nth-child(5) { animation-delay: 240ms; }

/* ── Controles del carrusel (flechas) ── */
.ud-carr-controls {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
}

.ud-carr-arrow {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--ud-gray-200);
  background: var(--ud-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--ud-dark);
  transition: all var(--ud-t);
  flex-shrink: 0;
}

.ud-carr-arrow:hover {
  border-color: var(--ud-brand);
  color: var(--ud-brand);
  box-shadow: var(--ud-shadow);
}

.ud-carr-arrow:disabled {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}

/* Ocultar flechas en mobile (scroll táctil nativo) */
@media (max-width: 768px) {
  .ud-carr-controls {
    display: none;
  }

  .ud-skills__panel .ud-card {
    width: 230px;
  }
}

@media (max-width: 480px) {
  .ud-skills__panel .ud-card {
    width: calc(80vw);
  }

  .ud-skills {
    padding: 48px 0 56px;
  }
}

/* ════════════════════════════════════════
   INTRO SECCIÓN CATEGORÍAS
════════════════════════════════════════ */
.ud-cats-intro {
  background: var(--ud-white);
  padding: 30px 0 15px;
  position: relative;
  overflow: hidden;
}

/* Barra de acento superior (gradiente de marca) */
.ud-cats-intro::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--ud-brand)  0%,
    #3fa9e8          40%,
    var(--ud-yellow) 70%,
    var(--ud-orange) 100%
  );
}

.ud-cats-intro__inner {
  max-width: 900px;
}

.ud-cats-intro__title {
  font-size: clamp(1.3rem, 1.5vw + 0.3rem, 1.55rem);
  font-weight: 700;
  color: var(--ud-dark);
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}

.ud-cats-intro__h3 {
  font-size: clamp(1rem, 1.2vw + 0.4rem, 1.18rem);
  font-weight: 400;
  color: var(--ud-gray-400);
  line-height: 1.8;
  margin: 0;
  max-width: 72ch;
}

@media (max-width: 768px) {
  .ud-cats-intro {
    padding: 52px 0 44px;
  }

  .ud-cats-intro__h1 {
    letter-spacing: -0.02em;
  }
}

@media (max-width: 480px) {
  .ud-cats-intro {
    padding: 40px 0 36px;
  }
}

/* ════════════════════════════════════════
   PROGRAMAS TÉCNICOS
════════════════════════════════════════ */
.ij-tecnicos {
  background: var(--ud-white);
  padding: 72px 0;
}

.ij-tecnicos__card {
  background: var(--ud-dark);
  border-radius: 24px;
  padding: 56px 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

/* ── Columna izquierda ── */
.ij-tecnicos__eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ud-yellow);
  margin-bottom: 14px;
}

.ij-tecnicos__title {
  font-size: clamp(1.4rem, 2vw + 0.4rem, 2rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.22;
  letter-spacing: -0.025em;
  margin: 0 0 14px;
}

.ij-tecnicos__desc {
  font-size: 0.93rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.72;
  margin: 0 0 28px;
}

.ij-tecnicos__features {
  list-style: none;
  padding: 0;
  margin: 0 0 36px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ij-feat {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.80);
  line-height: 1.45;
}

.ij-feat strong {
  color: #fff;
  font-weight: 700;
}

.ij-feat__icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
}

.ij-tecnicos__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ud-yellow);
  color: var(--ud-dark);
  font-size: 0.88rem;
  font-weight: 700;
  font-family: inherit;
  padding: 12px 22px;
  border-radius: var(--ud-r-xs);
  text-decoration: none;
  transition: background var(--ud-t), gap var(--ud-t);
}

.ij-tecnicos__cta:hover {
  background: var(--ud-orange);
  gap: 13px;
}

/* ── Columna derecha ── */
.ij-tecnicos__programs-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.35);
  margin: 0 0 10px;
}

.ij-tecnicos__programs {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ij-prog {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 15px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.07);
  text-decoration: none;
  transition: background var(--ud-t), border-color var(--ud-t);
}

.ij-prog:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.13);
}

.ij-prog__icon {
  font-size: 1.55rem;
  line-height: 1;
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.07);
  border-radius: 10px;
}

.ij-prog__info {
  flex: 1;
  min-width: 0;
}

.ij-prog__info strong {
  display: block;
  font-size: 0.87rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
}

.ij-prog__info span {
  font-size: 0.73rem;
  color: rgba(255,255,255,0.42);
  font-weight: 500;
}

.ij-prog__arrow {
  flex-shrink: 0;
  color: rgba(255,255,255,0.22);
  transition: color var(--ud-t), transform var(--ud-t);
}

.ij-prog:hover .ij-prog__arrow {
  color: var(--ud-yellow);
  transform: translateX(3px);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .ij-tecnicos__card {
    gap: 40px;
    padding: 48px 48px;
  }
}

@media (max-width: 768px) {
  .ij-tecnicos {
    padding: 52px 0;
  }
  .ij-tecnicos__card {
    grid-template-columns: 1fr;
    padding: 40px 32px;
    gap: 36px;
    border-radius: 18px;
  }
}

@media (max-width: 480px) {
  .ij-tecnicos {
    padding: 40px 0;
  }
  .ij-tecnicos__card {
    padding: 32px 22px;
    border-radius: 14px;
  }
}