/*
Theme Name: Subciencia
Theme URI: https://subciencia.cl
Description: Cartelera Científica - Tema oficial de Subciencia
Author: Subciencia
Version: 1.0.0
Text Domain: subciencia
*/

/* =============================================
   VARIABLES
============================================= */
:root {
  --color-primary: #6600ff;
  --color-secondary: #d7e2ff;
  --color-yellow: #ffd902;
  --color-white: #ffffff;
  --color-text: #333333;
  --color-text-light: #4a5565;
  --color-text-on-brand: #e7ecff;
  --color-gray: #d9d9d9;
  --color-dark: #101828;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 64px;
  --radius-pill: 32px;

  --border-primary: 2px solid var(--color-primary);
  --border-bottom-primary: 12px solid var(--color-primary);

  --font-acumin: 'Acumin Variable Concept', 'Arial Black', sans-serif;
  --font-roboto: 'Roboto', sans-serif;
  --font-inter: 'Inter', sans-serif;
}

/* =============================================
   RESET & BASE
============================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-roboto);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.5;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* =============================================
   TIPOGRAFÍA
============================================= */
.heading-section {
  font-family: var(--font-acumin);
  font-size: 40px;
  font-weight: 900;
  line-height: 60px;
  letter-spacing: -2.74px;
  color: var(--color-primary);
}

/* =============================================
   HEADER
============================================= */
.site-header {
  background: var(--color-secondary);
  border-bottom: var(--border-bottom-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 36px;
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
}

.site-logo img { height: 94px; width: auto; }
.site-logo a { display: block; }

.menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  display: block;
  line-height: 0;
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
  fill: var(--color-primary);
}

.main-navigation { display: none; }

/* =============================================
   HERO SECTION
============================================= */
.hero-section {
  width: 100%;
  min-height: 664px;
  background: var(--color-gray);
  position: relative;
  overflow: hidden;
}

.hero-section img {
  width: 100%;
  height: 664px;
  object-fit: cover;
}

/* =============================================
   SECTION HEADER
============================================= */
.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  border-bottom: var(--border-bottom-primary);
  padding-bottom: 12px;
  margin-bottom: 29px;
  min-height: 99px;
  gap: 10px;
}

.section-header .heading-section { flex: 1; }

/* =============================================
   BOTONES
============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-lg);
  font-family: var(--font-roboto);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.5;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
  white-space: nowrap;
  border: none;
}

.btn:hover { opacity: 0.9; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--color-primary); color: var(--color-text-on-brand); }
.btn-outline { background: var(--color-white); color: var(--color-primary); border: 2px solid var(--color-primary); }
.btn-sm { font-size: 16px; padding: 8px 16px; }

/* =============================================
   PILLS
============================================= */
.pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  line-height: 16px;
  white-space: nowrap;
}

.pill-primary { background: var(--color-primary); color: #d1d5dc; font-family: var(--font-inter); }
.pill-yellow { background: var(--color-yellow); color: #000; font-family: var(--font-acumin); }

/* =============================================
   ACTIVITY CARD
============================================= */
.activity-card {
  background: var(--color-white);
  border: var(--border-primary);
  border-radius: var(--radius-sm);
  padding: 36px 24px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.activity-card__image {
  width: 100%;
  height: 176px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-gray);
}

.activity-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.activity-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.activity-card__date {
  font-family: var(--font-acumin);
  font-weight: 900;
  font-size: 14px;
  line-height: 20px;
  letter-spacing: 0.55px;
  text-transform: uppercase;
  text-decoration: underline;
  color: var(--color-primary);
}

.activity-card__title {
  font-family: var(--font-acumin);
  font-weight: 700;
  font-size: 24px;
  line-height: 30px;
  color: var(--color-primary);
}

.activity-card__tags { display: flex; gap: 15px; flex-wrap: wrap; }

.activity-card__excerpt {
  font-family: var(--font-acumin);
  font-weight: 500;
  font-size: 16px;
  line-height: 26px;
  letter-spacing: -0.31px;
  color: var(--color-primary);
  flex: 1;
}

.activity-card__actions { display: flex; gap: 8px; }
.activity-card__actions .btn { flex: 1; min-width: 0; }

/* =============================================
   SECCIONES
============================================= */
.section-actividades {
  background: var(--color-white);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: 24px 128px;
  position: relative;
  overflow: hidden;
}

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

.section-eventos {
  background: var(--color-secondary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: 24px 128px;
  position: relative;
  overflow: hidden;
}

.eventos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: minmax(200px, auto);
  gap: 24px;
}

.event-card {
  background: var(--color-white);
  border: var(--border-primary);
  border-radius: var(--radius-sm);
  padding: 36px 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
  min-height: 200px;
  transition: transform 0.2s;
  text-decoration: none;
}

.event-card:hover { transform: translateY(-2px); }

.event-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
}

.event-card__title {
  font-family: var(--font-acumin);
  font-weight: 700;
  font-size: 24px;
  line-height: 30px;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
}

.event-card--col-2 { grid-column: span 2; }

/* =============================================
   EXPLORA ACTIVIDADES
============================================= */
.section-explora {
  background: var(--color-secondary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: 24px 64px;
  position: relative;
}

.search-bar {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 24px;
}

.search-field {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-white);
  border: 1px solid var(--color-text);
  border-radius: var(--radius-md);
  padding: 12px 16px;
}

.search-field input {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--font-roboto);
  font-size: 16px;
  color: var(--color-text);
  background: transparent;
}

.search-field svg { width: 24px; height: 24px; flex-shrink: 0; }

.explora-layout {
  background: var(--color-white);
  border-radius: var(--radius-sm);
  display: grid;
  grid-template-columns: 290px 1fr;
  gap: 0;
  padding: 24px;
  gap: 24px;
}

/* =============================================
   SIDEBAR FILTROS
============================================= */
.filters-sidebar {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.filters-title {
  font-family: var(--font-acumin);
  font-weight: 700;
  font-size: 24px;
  line-height: 30px;
  color: var(--color-primary);
}

.filter-group { display: flex; flex-direction: column; gap: 12px; }

.filter-group__title {
  font-family: var(--font-inter);
  font-weight: 700;
  font-size: 14px;
  line-height: 20px;
  letter-spacing: 0.55px;
  text-transform: uppercase;
  color: var(--color-dark);
}

.filter-options { display: flex; flex-direction: column; gap: 12px; }

.filter-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
}

.filter-option input[type="checkbox"] {
  width: 20px;
  height: 20px;
  min-width: 20px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
  margin-top: 2px;
}

.filter-option label {
  font-family: var(--font-inter);
  font-weight: 500;
  font-size: 14px;
  line-height: 20px;
  color: var(--color-text-light);
  cursor: pointer;
}

.date-field {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-white);
  border: 1px solid var(--color-text);
  border-radius: var(--radius-md);
  padding: 8px 12px;
}

.date-field input {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--font-roboto);
  font-size: 16px;
  color: var(--color-text);
  background: transparent;
}

.date-field svg { width: 24px; height: 24px; flex-shrink: 0; }

/* =============================================
   GRID CARDS EXPLORA
============================================= */
.activities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-content: start;
}

/* =============================================
   INSTITUCIONES
============================================= */
.section-instituciones {
  background: var(--color-secondary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: 24px 96px;
  position: relative;
}

.instituciones-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: center;
  justify-content: center;
  padding: 24px 0;
}

.institucion-logo {
  max-height: 80px;
  max-width: 160px;
  object-fit: contain;
  filter: grayscale(20%);
  transition: filter 0.2s;
}

.institucion-logo:hover { filter: grayscale(0%); }

/* =============================================
   FOOTER
============================================= */
.site-footer {
  background: var(--color-primary);
  color: var(--color-text-on-brand);
  padding: 48px 128px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  color: var(--color-text-on-brand);
  opacity: 0.8;
}

.footer-col h4 {
  font-family: var(--font-acumin);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 8px; }

.footer-col a {
  color: var(--color-text-on-brand);
  opacity: 0.8;
  font-size: 14px;
  transition: opacity 0.2s;
}

.footer-col a:hover { opacity: 1; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.2);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  opacity: 0.7;
}

/* =============================================
   MOBILE MENU
============================================= */
.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 150;
}

.mobile-menu-overlay.is-active { display: block; }

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  background: var(--color-white);
  z-index: 200;
  padding: 80px 32px 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow: -4px 0 24px rgba(0,0,0,0.15);
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.mobile-menu.is-open { transform: translateX(0); }

.mobile-menu ul { display: flex; flex-direction: column; gap: 20px; }

.mobile-menu a {
  font-family: var(--font-roboto);
  font-weight: 700;
  font-size: 18px;
  color: var(--color-primary);
}

.mobile-menu__close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 24px;
  color: var(--color-primary);
  line-height: 1;
}

/* =============================================
   SINGLE ACTIVIDAD
============================================= */
.single-actividad {
  max-width: 900px;
  margin: 48px auto;
  padding: 0 24px;
}

.single-actividad__hero {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 32px;
}

.single-actividad__hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.single-actividad__meta {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.single-actividad__title {
  font-family: var(--font-acumin);
  font-size: 40px;
  font-weight: 900;
  color: var(--color-primary);
  margin-bottom: 24px;
  line-height: 1.2;
}

.single-actividad__content {
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 32px;
}

.single-actividad__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* =============================================
   PAGINACIÓN
============================================= */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 32px 0;
}

.pagination .page-numbers {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  transition: all 0.2s;
}

.pagination .current,
.pagination a:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* =============================================
   RESPONSIVE
============================================= */
@media (max-width: 1200px) {
  .section-actividades,
  .section-eventos,
  .section-explora,
  .section-instituciones { padding-left: 48px; padding-right: 48px; }

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

@media (max-width: 900px) {
  .section-actividades,
  .section-eventos,
  .section-explora,
  .section-instituciones { padding-left: 24px; padding-right: 24px; }

  .actividades-grid,
  .eventos-grid,
  .activities-grid { grid-template-columns: 1fr; }

  .event-card--col-2 { grid-column: 1; }

  .explora-layout { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: 32px; }

  .site-footer { padding: 32px 24px; }
}

@media (max-width: 600px) {
  .site-header { padding: 12px 20px; }
  .site-logo img { height: 60px; }
  .heading-section { font-size: 28px; line-height: 40px; }
  .section-header { flex-direction: column; height: auto; }
}