:root {
  --color-primary: #0a9396;
  --color-primary-dark: #087d80;
  --color-secondary: #005f73;
  --color-accent: #ee9b00;
  --color-accent-dark: #cb8500;
  --color-light: #fffbb7;
  --color-text: #001219;
  --color-text-light: #0a3b44;
  --color-border: #e9d8a6;
  --color-tertiary: #94d2bd;
  --color-special: #bb3e03;
  --color-gold: #ca6702;
  --color-timeline-bg: #fefae0;
  --timeline-width: 200px;
  --header-height: auto;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
  background-color: var(--color-light);
}

.header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 30px;
  text-align: center;
  padding: 0;
  border-bottom: 3px solid var(--color-primary);
  background: white;
  border-radius: 20px;
  box-shadow: 0 6px 20px rgba(10, 147, 150, 0.15);
  position: relative;
  z-index: 20;
  overflow: hidden;
}

.banner-container {
  width: 100%;
  background: linear-gradient(135deg, var(--color-light) 0%, #fff3b0 100%);
  line-height: 0;
  position: relative;
}

.banner-container img {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  display: block;
  opacity: 0.95;
}

.header-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 25px 30px;
  width: 100%;
  background: white;
  position: relative;
  z-index: 10;
}

.title-container {
  margin-bottom: 15px;
  position: relative;
  z-index: 20;
}

h1 {
  color: var(--color-secondary);
  margin: 0 0 5px 0;
  font-size: 2.2rem;
  font-weight: 700;
  text-shadow: 2px 2px 4px rgba(238, 155, 0, 0.1);
  position: relative;
  padding-bottom: 15px;
}

h1::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-accent), var(--color-primary));
}

/* Estilos para el nuevo botón de ciclo */
.subtitle {
  color: var(--color-gold);
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: 2px;
  margin: 10px 0 0 0;
  position: relative;
  display: inline-block;
  padding: 8px 25px;
  background: linear-gradient(135deg, rgba(238, 155, 0, 0.1) 0%, rgba(202, 103, 2, 0.05) 100%);
  border-radius: 40px;
  border: 1px solid rgba(238, 155, 0, 0.3);
  font-style: italic;
  box-shadow: 0 2px 8px rgba(238, 155, 0, 0.1);
  cursor: pointer; /* Indica que es clickeable */
  transition: all 0.2s ease; /* Suaviza la transición */
}

.subtitle:hover, .subtitle:focus {
  background: linear-gradient(135deg, rgba(238, 155, 0, 0.2) 0%, rgba(202, 103, 2, 0.1) 100%);
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(238, 155, 0, 0.2);
  transform: scale(1.02); /* Efecto sutil de aumento */
}

.subtitle span {
  font-weight: 700;
  color: var(--color-secondary);
}

.logos {
  display: flex;
  gap: 25px;
  justify-content: center;
  margin-top: 15px;
  align-items: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 20;
}

.logos a {
  display: inline-block;
  transition: transform 0.3s ease;
}

.logos a:hover {
  transform: scale(1.05);
  opacity: 0.9;
}

.logos img {
  max-height: 90px;
  width: auto;
  object-fit: contain;
}

.main-container {
  display: flex;
  gap: 30px;
  position: relative;
  margin-top: 20px;
  min-height: 500px;
}

.timeline-sidebar {
  width: var(--timeline-width);
  flex-shrink: 0;
  position: sticky;
  top: 20px;
  max-height: calc(100vh - 40px);
  height: fit-content;
  overflow-y: auto;
  background: var(--color-timeline-bg);
  border-radius: 16px;
  padding: 25px 0;
  box-shadow: 0 6px 20px rgba(10, 147, 150, 0.15);
  border-left: 4px solid var(--color-primary);
  z-index: 10;
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-light);
  align-self: flex-start;
}

.timeline-sidebar::-webkit-scrollbar {
  width: 4px;
}

.timeline-sidebar::-webkit-scrollbar-track {
  background: var(--color-light);
  border-radius: 10px;
}

.timeline-sidebar::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 10px;
}

.timeline-sidebar::before {
  content: '';
  position: absolute;
  left: 35px;
  top: 25px;
  bottom: 25px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-accent), var(--color-gold));
  opacity: 0.3;
  z-index: 0;
}

.timeline-module::before {
  display: none;
}

.timeline-module {
  position: relative;
  padding: 20px 20px 20px 60px;
  margin-bottom: 5px;
  cursor: pointer;
  transition: none;
  z-index: 2;
  background-color: transparent;
  border-left: none;
}

/* --- INICIO: NUEVO ESTILO PARA MÓDULO ACTIVO (SOMBREADO SUTIL) --- */
.timeline-module.active-module {
  background-color: rgba(10, 147, 150, 0.2); /* Sombreado sutil con el color primario */
  border-left: 4px solid var(--color-primary-dark); /* Borde izquierdo más oscuro para mayor énfasis */
  transition: background-color 0.3s ease, border-left 0.3s ease; /* Transición suave al activar/desactivar */
}
/* Estilo específico para el evento especial cuando está activo */
.timeline-module.special-event.active-module {
  background-color: rgba(187, 62, 3, 0.2); /* Sombreado con el color especial */
  border-left-color: var(--color-special);
}
/* --- FIN: NUEVO ESTILO PARA MÓDULO ACTIVO --- */

.timeline-module:active {
  background-color: rgba(10, 147, 150, 0.15);
  transition: background-color 0.1s ease;
}

.timeline-module::after {
  content: '';
  position: absolute;
  left: 31px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  background-color: white;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  z-index: 3;
  transition: none;
  box-shadow: 0 0 0 2px var(--color-timeline-bg);
}

.timeline-module.has-content::after {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.timeline-module.special-event {
  border-top: 2px dashed var(--color-special);
  margin-top: 15px;
  padding-top: 25px;
}

.timeline-module.special-event .timeline-module-title {
  color: var(--color-special);
}

.timeline-module.special-event .timeline-module-months {
  color: var(--color-special);
}

.timeline-module.special-event::after {
  border-color: var(--color-special);
}

.timeline-module.special-event.has-content::after {
  background-color: var(--color-special);
  border-color: var(--color-special);
}

.timeline-module.special-event:active {
  background-color: rgba(187, 62, 3, 0.15);
  transition: background-color 0.1s ease;
}

.timeline-module-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-secondary);
  display: block;
  line-height: 1.3;
  margin-bottom: 4px;
  transition: none;
}

.timeline-module-months {
  font-size: 0.75rem;
  color: var(--color-primary);
  display: block;
  margin-top: 4px;
  font-style: italic;
  transition: none;
}

.timeline-module-dates {
  font-size: 0.7rem;
  color: var(--color-text-light);
  display: block;
  margin-top: 2px;
  background: rgba(255, 255, 255, 0.8);
  padding: 2px 6px;
  border-radius: 12px;
  display: inline-block;
  transition: none;
  border: 1px solid var(--color-border);
}

.modules-container {
  flex: 1;
  min-width: 0;
}

.module {
  background-color: white;
  border-radius: 16px;
  box-shadow: 0 6px 20px rgba(10, 147, 150, 0.1);
  margin-bottom: 25px;
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid var(--color-border);
}

.module:hover {
  box-shadow: 0 8px 30px rgba(10, 147, 150, 0.15);
}

.module-header {
  background: linear-gradient(135deg, var(--color-primary), #2a9d8f);
  font-size: 1.3rem;
  color: white;
  padding: 18px 25px;
  cursor: pointer;
  font-weight: bold;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.module-header.special-header {
  background: linear-gradient(135deg, var(--color-special), #e76f51);
}

.module-header:hover {
  background: linear-gradient(135deg, var(--color-primary-dark), #1f8a7d);
}

.module-header.special-header:hover {
  background: linear-gradient(135deg, #9b2c2c, #c44536);
}

.toggle-icon {
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-block;
  font-size: 1.2rem;
}

.module.active .module-header .toggle-icon {
  transform: rotate(90deg);
}

.module-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  background: #fffdf0;
}

.module.active .module-content {
  max-height: 10000px;
  transition: max-height 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.session {
  padding: 25px;
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.2s;
}

.session:last-child {
  border-bottom: none;
}

.session:hover {
  background-color: rgba(255, 247, 183, 0.3);
}

.session-title {
  font-weight: bold;
  font-size: 1.2rem;
  color: var(--color-secondary);
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

.session-date-badge {
  background: linear-gradient(135deg, var(--color-light), #fff3b0);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: normal;
  padding: 4px 12px;
  border-radius: 30px;
  border: 1px solid var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.session-date-badge::before {
  content: '📅';
  font-size: 0.8rem;
  opacity: 0.7;
}

.session-special-dates {
  background: rgba(187, 62, 3, 0.1);
  color: var(--color-special);
  border-color: var(--color-special);
}

.session-special-dates::before {
  content: '🌟';
}

.session-description-toggle,
.session-details-toggle,
.session-images-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: linear-gradient(135deg, var(--color-light), #fff3b0);
  border-radius: 10px;
  cursor: pointer;
  margin: 15px 0 10px 0;
  font-weight: 600;
  color: var(--color-primary);
  transition: all 0.2s;
  border: 1px solid var(--color-border);
}

.session-description-toggle:hover,
.session-details-toggle:hover,
.session-images-toggle:hover {
  background: linear-gradient(135deg, #fff3b0, #ffeb9c);
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}

.session-description-toggle .toggle-icon,
.session-details-toggle .toggle-icon,
.session-images-toggle .toggle-icon {
  transition: transform 0.3s ease;
  color: var(--color-accent);
}

.session.show-description .session-description-toggle .toggle-icon {
  transform: rotate(90deg);
}

.session.show-details .session-details-toggle .toggle-icon {
  transform: rotate(90deg);
}

.session.show-images .session-images-toggle .toggle-icon {
  transform: rotate(90deg);
}

.session-description-container,
.session-details-content,
.session-images-container {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.session.show-description .session-description-container,
.session.show-details .session-details-content,
.session.show-images .session-images-container {
  max-height: 50000px;
  transition: max-height 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  padding-bottom: 15px;
}

.session-description {
  font-size: 1rem;
  margin-bottom: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
  padding: 15px 5px;
}

.session-section {
  margin: 18px 0;
  padding: 18px;
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(10, 147, 150, 0.05);
  border-left: 4px solid;
}

.session-section.information {
  border-left-color: var(--color-primary);
}
.session-section.resources {
  border-left-color: var(--color-accent);
}
.session-section.additional {
  border-left-color: var(--color-tertiary);
}
.session-section.special-section {
  border-left-color: var(--color-special);
}

.section-title {
  display: flex;
  align-items: center;
  color: var(--color-secondary);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 15px;
  margin-top: 2px;
}

.section-title::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 8px;
}

.information .section-title::before {
  background-color: var(--color-primary);
}
.resources .section-title::before {
  background-color: var(--color-accent);
}
.additional .section-title::before {
  background-color: var(--color-tertiary);
}
.special-section .section-title::before {
  background-color: var(--color-special);
}

.session-details {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.detail {
  background: rgba(10, 147, 150, 0.1);
  padding: 6px 16px;
  border-radius: 30px;
  color: var(--color-primary);
  font-size: 0.9rem;
  border: 1px solid rgba(10, 147, 150, 0.2);
}

.detail.special-detail {
  background: rgba(187, 62, 3, 0.1);
  color: var(--color-special);
  border-color: rgba(187, 62, 3, 0.2);
}

.tag {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.2s;
  margin: 3px;
}

.tag:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(10, 147, 150, 0.15);
}

.tag.accent {
  background: rgba(238, 155, 0, 0.1);
  color: var(--color-accent);
  border-color: rgba(238, 155, 0, 0.3);
}

.tag.tertiary {
  background: rgba(148, 210, 189, 0.1);
  color: #021896;
  border-color: rgba(148, 210, 189, 0.3);
}

.tag.special-tag {
  background: rgba(187, 62, 3, 0.1);
  color: var(--color-special);
  border-color: rgba(187, 62, 3, 0.3);
}

.session-images {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin: 20px 0;
}

/* Estilos para las imágenes que abren la modal */
.session-images a {
  display: block;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}

.session-images a:hover {
  transform: scale(1.03);
  box-shadow: 0 6px 15px rgba(10, 147, 150, 0.2);
}

.session-images img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
  pointer-events: none; /* Evita que el img capture el click, el enlace lo maneja */
}

/* Estilos para la imagen en la descripción del encuentro */
.session-description a {
  cursor: pointer;
}

.session-description img {
  max-width: 100%;
  border-radius: 8px;
  margin: 15px 0;
  border: 1px solid var(--color-border);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.session-description a:hover img {
  transform: scale(1.02);
  box-shadow: 0 8px 20px rgba(10, 147, 150, 0.2);
}

.hover-image {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.hover-image:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 20px rgba(10, 147, 150, 0.2);
}
.hover-link {
  display: inline-block;
  transition: transform 0.3s ease;
}

/* ===== ESTILOS CORREGIDOS PARA VIDEO CONTAINER ===== */
.video-container {
    width: 80%;
    margin-bottom: 20px;
    display: block;
}

.video-container iframe {
    width: 80%;
    height: auto;
    aspect-ratio: 16 / 9;
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

/* Nuevo estilo para los contenedores de enlaces de recursos */
.resources-container .session-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

.resources-container .session-details > div {
    width: 100%;
    margin-bottom: 5px;
}

/* ===== ESTILOS PARA LA VENTANA MODAL ===== */
.modal {
  display: none;            
  position: fixed;
  inset: 0;
  z-index: 9999;

  background-color: rgba(0, 0, 0, 0.9);
  animation: fadeIn 0.3s;
}

/* SOLO cuando esté visible */
.modal[style*="block"] {
  display: flex !important;
  justify-content: center;
  align-items: center;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  display: block;
  border-radius: 8px;
  border: 3px solid var(--color-border);
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
}

.close-modal {
  position: absolute;
  top: 20px;
  right: 35px;
  color: var(--color-light);
  font-size: 40px;
  font-weight: bold;
  transition: 0.3s;
  cursor: pointer;
  z-index: 10000;
  text-shadow: 0 0 10px rgba(0,0,0,0.5);
}

.close-modal:hover,
.close-modal:focus {
  color: var(--color-accent);
  text-decoration: none;
  transform: scale(1.1);
}

/* Estilo para el enlace que ahora no abre pestaña */
.no-new-tab {
  cursor: pointer;
}

@media (min-width: 768px) and (max-width: 1024px) {
  :root {
    --timeline-width: 150px;
  }
  
  .timeline-module {
    padding: 15px 10px 15px 45px;
  }
  
  .timeline-module::after {
    left: 26px;
  }
  
  .timeline-module-title {
    font-size: 0.85rem;
  }
  
  .timeline-module-months,
  .timeline-module-dates {
    font-size: 0.7rem;
  }
}

@media (min-width: 768px) {
  .header-content {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }

  .title-container {
    margin-bottom: 0;
    text-align: left;
  }

  h1 {
    margin-bottom: 5px;
    text-align: left;
  }

  h1::after {
    left: 0;
    transform: none;
  }

  .subtitle {
    text-align: left;
    display: inline-block;
  }

  .logos {
    margin-top: 0;
  }
}

@media (max-width: 767px) {
  .main-container {
    flex-direction: row;
    gap: 10px;
    position: relative;
  }
  
  .timeline-sidebar {
    width: 70px;
    margin-left: -10px;
    padding: 15px 5px;
    border-left: none;
    border-right: 3px solid var(--color-primary);
    border-radius: 16px 0 0 16px;
    box-shadow: -4px 0 15px rgba(10, 147, 150, 0.1);
    position: sticky;
    top: 10px;
    max-height: calc(100vh - 20px);
    background: var(--color-timeline-bg);
    z-index: 10;
  }
  
  .timeline-sidebar::before {
    display: none;
  }
  
  .timeline-module {
    padding: 12px 0;
    margin-bottom: 5px;
    text-align: center;
    position: relative;
    display: flex;
    flex-direction: column-reverse;
    align-items: center;
    justify-content: center;
    border-left: none;
    min-height: 80px;
  }
  
  .timeline-module::after {
    display: none;
  }
  
  .timeline-module:active {
    background-color: rgba(10, 147, 150, 0.15);
    border-radius: 4px;
  }
  
  .timeline-module-title {
    font-size: 0.8rem;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
    line-height: 1.2;
    margin: 5px 0 0 0;
    padding: 0;
    white-space: nowrap;
    color: var(--color-secondary);
    font-weight: 600;
    display: block;
    text-align: center;
  }
  
  .timeline-module-months {
    display: none;
  }
  
  .timeline-module-dates {
    font-size: 0.7rem;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
    background: transparent;
    padding: 0;
    margin: 0 0 5px 0;
    color: var(--color-primary);
    display: block;
    white-space: nowrap;
    width: auto;
    text-align: center;
    font-weight: 500;
    border: none;
  }
  
  .timeline-module.special-event {
    border-top: none;
    margin-top: 0;
    padding-top: 12px;
  }
  
  .timeline-module.special-event .timeline-module-title {
    color: var(--color-special);
  }
  
  .timeline-module.special-event .timeline-module-dates {
    color: var(--color-special);
  }
  
  .timeline-module.special-event:active {
    background-color: rgba(187, 62, 3, 0.15);
    border-radius: 4px;
  }
  
  .timeline-module.has-content .timeline-module-title {
    font-weight: 700;
  }

  .modules-container {
    width: calc(100% - 80px);
  }

  .module-content {
    overflow: visible;
  }

  .session-title {
    font-size: 1rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  
  .session-date-badge {
    font-size: 0.75rem;
  }
  
  .module-header {
    font-size: 1rem;
    padding: 15px;
  }
  
  .session {
    padding: 15px;
  }
  
  .session-description-toggle,
  .session-details-toggle,
  .session-images-toggle {
    padding: 10px 15px;
    font-size: 0.9rem;
  }
  
  .session-images {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
  }
  
  .session-images img {
    height: 120px;
  }

  .logos img {
    max-height: 70px;
  }

  /* Ajustes para modal en móvil */
  .modal-content {
    max-width: 95%;
    max-height: 80%;
  }

  .close-modal {
    top: 15px;
    right: 20px;
    font-size: 35px;
  }

  /* --- SOLUCIÓN: Corrección para la superposición de detalles en móvil --- */
  .session-details {
    display: flex;
    flex-direction: column; /* Apila los elementos uno encima del otro */
    gap: 8px; /* Añade un pequeño espacio entre cada detalle */
    width: 100%; /* Asegura que ocupe todo el ancho disponible */
  }

  .detail {
    display: block; /* Hace que cada detalle ocupe su propia línea */
    width: 100%; /* Ocupa el ancho completo */
    box-sizing: border-box; /* Incluye el padding en el ancho total */
    text-align: left; /* Alinea el texto a la izquierda para que se vea ordenado */
    word-break: break-word; /* Evita que textos largos (como enlaces) se desborden */
  }
  /* ---------------------------------------------------------------------- */
}

@media (max-width: 480px) {
  .timeline-sidebar {
    width: 60px;
    margin-left: -8px;
  }
  
  .modules-container {
    width: calc(100% - 70px);
  }
  
  .timeline-module {
    padding: 10px 0;
    min-height: 70px;
  }
  
  .timeline-module-title {
    font-size: 0.7rem;
    margin-top: 4px;
  }
  
  .timeline-module-dates {
    font-size: 0.6rem;
    margin-bottom: 4px;
  }
  
  .session-title {
    font-size: 0.95rem;
  }
  
  .subtitle {
    font-size: 1.1rem;
    padding: 6px 15px;
  }

  /* Aseguramos que la corrección también se aplique en pantallas muy pequeñas */
  .session-details {
    flex-direction: column;
    gap: 8px;
  }
  .detail {
    display: block;
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}