/* ==========================================================================
   LoGiViT Web v2.0 - Medical VR Simulation Theme
   Static, zero-dependency, high-performance CSS
   Compatible with Apache/Nginx static hosting (webs9.uvigo.es)
   ========================================================================== */

:root {
  /* Color Palette - Medical & Scientific Tech */
  --color-primary: #0369a1;        /* Deep sky clinical blue */
  --color-primary-hover: #0284c7;
  --color-primary-dark: #075985;
  --color-primary-light: #e0f2fe;
  --color-primary-subtle: #f0f9ff;
  
  --color-secondary: #0f766e;      /* Medical teal */
  --color-secondary-light: #ccfbf1;

  --color-bg: #f8fafc;             /* Clinical clean canvas */
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-surface-hover: #f1f5f9;

  --color-text-main: #0f172a;      /* High contrast slate */
  --color-text-muted: #475569;
  --color-text-light: #64748b;
  --color-text-inverse: #ffffff;

  --color-border: #e2e8f0;
  --color-border-subtle: #f1f5f9;
  --color-border-focus: #38bdf8;

  --color-badge-article: #eff6ff;
  --color-badge-article-text: #1d4ed8;
  --color-badge-conf: #f0fdf4;
  --color-badge-conf-text: #15803d;

  /* Elevation & Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 6px 16px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 16px 28px -4px rgba(15, 23, 42, 0.1), 0 6px 12px -2px rgba(15, 23, 42, 0.05);
  --shadow-xl: 0 24px 48px -12px rgba(15, 23, 42, 0.15);

  /* Geometry */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Layout */
  --header-height: 74px;
  --max-width: 1200px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   CSS Reset & Base
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-container {
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-link {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 46px;
  width: auto;
  object-fit: contain;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 14px;
  color: var(--color-text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-subtle);
}

.nav-link.active {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  font-weight: 600;
}

/* Hamburger Menu Button */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 32px;
  height: 28px;
  padding: 4px;
  background: transparent;
}

.hamburger-bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-text-main);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger-btn.active .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.active .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.active .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: #ffffff;
  padding: 16px 24px;
  flex-direction: column;
  gap: 8px;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav-link {
  padding: 12px 16px;
  color: var(--color-text-main);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 60px;
  background: linear-gradient(180deg, #ffffff 0%, var(--color-bg) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-full);
  align-self: flex-start;
  border: 1px solid rgba(3, 105, 161, 0.15);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.hero-title {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.18;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(3, 105, 161, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(3, 105, 161, 0.35);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1.5px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text-main);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-primary-subtle);
}

.btn-ghost {
  color: var(--color-primary);
  background: transparent;
}

.btn-ghost:hover {
  background-color: var(--color-primary-light);
}

/* Hero Media Image / Video (Admite tanto imagen estática como elemento video con controles) */
.hero-media {
  display: flex;
  justify-content: center;
}

.hero-image-wrapper {
  position: relative;
  background: var(--color-surface);
  padding: 12px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: transform var(--transition-normal);
}

.hero-image-wrapper:hover {
  transform: translateY(-4px);
}

.hero-image {
  border-radius: calc(var(--radius-xl) - 10px);
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

/* Oculta el pie informativo al interactuar con el vídeo o pasar el cursor para no solapar los controles de reproducción */
.hero-image-wrapper:hover .hero-image-caption {
  opacity: 0;
  pointer-events: none;
}

.hero-image-caption {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background: rgba(15, 23, 42, 0.78);
  backdrop-filter: blur(8px);
  color: #ffffff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 500;
  text-align: center;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

/* ==========================================================================
   General Section Layout
   ========================================================================== */

.section-container {
  padding: 70px 0;
}

.section-wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  margin-bottom: 36px;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
}

.section-line {
  width: 44px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  margin-top: 10px;
}

/* ==========================================================================
   About Section
   ========================================================================== */

.about-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.about-description {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--color-text-main);
  margin-bottom: 32px;
}

.about-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.pillar-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.pillar-icon {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pillar-content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.pillar-content p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   News & Events Section
   ========================================================================== */

.news-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.event-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.event-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-focus);
}

.event-media-wrapper {
  position: relative;
  height: 180px;
  background: #0f172a;
  overflow: hidden;
}

.event-media-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.event-card:hover .event-media-img {
  transform: scale(1.04);
}

.event-media-wrapper.event-media-video {
  height: 200px;
  background: #000;
}

.event-media-wrapper.event-media-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.event-media-wrapper.event-media-video:hover .event-video-tag {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.event-video-tag {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(15, 23, 42, 0.85);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  z-index: 2;
  pointer-events: none;
}

.event-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.event-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.event-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-main);
  line-height: 1.35;
  margin-bottom: 8px;
}

.event-description {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 14px;
  flex-grow: 1;
}

.event-location {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

.event-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
}

.event-link-btn:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Gallery Section
   ========================================================================== */

.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.filter-btn {
  padding: 8px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-btn.active {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
  box-shadow: 0 2px 6px rgba(3, 105, 161, 0.25);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.gallery-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.gallery-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-focus);
}

.gallery-card.hidden,
.pub-card.hidden {
  display: none !important;
}

.card-img-wrapper {
  position: relative;
  aspect-ratio: 16 / 10;
  background: #0f172a;
  overflow: hidden;
}

.card-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.gallery-card:hover .card-img-wrapper img {
  transform: scale(1.06);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.gallery-card:hover .card-overlay {
  opacity: 1;
}

.zoom-badge {
  background: #ffffff;
  color: var(--color-text-main);
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
}

.card-caption {
  padding: 12px 14px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  border-top: 1px solid var(--color-border-subtle);
  background: var(--color-surface);
}

/* ==========================================================================
   Videos Section
   ========================================================================== */

.videos-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.videos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.video-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  display: flex;
  flex-direction: column;
}

.video-player-container {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
}

.video-player-container video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.video-card-body {
  padding: 18px;
}

.video-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.video-card-desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

/* ==========================================================================
   Publications Section
   ========================================================================== */

.pub-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}

.pub-search-wrapper {
  position: relative;
  flex: 1;
  max-width: 460px;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  pointer-events: none;
}

#pubSearchInput {
  width: 100%;
  padding: 10px 16px 10px 42px;
  font-size: 0.92rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-main);
  outline: none;
  transition: all var(--transition-fast);
}

#pubSearchInput:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(3, 105, 161, 0.15);
}

.pub-filter-tabs {
  display: flex;
  gap: 8px;
}

.pub-tab {
  padding: 8px 16px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.pub-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pub-tab.active {
  background: var(--color-primary-light);
  border-color: rgba(3, 105, 161, 0.3);
  color: var(--color-primary-dark);
}

.publications-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.pub-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pub-card:hover {
  border-color: var(--color-border-focus);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.pub-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.pub-badge-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pub-type-badge {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.pub-type-badge.article {
  background: var(--color-badge-article);
  color: var(--color-badge-article-text);
}

.pub-type-badge.conference {
  background: var(--color-badge-conf);
  color: var(--color-badge-conf-text);
}

.pub-year {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--color-text-light);
}

.pub-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-main);
  line-height: 1.4;
}

.pub-authors {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.pub-authors strong {
  color: var(--color-text-main);
}

.pub-source {
  font-size: 0.88rem;
  color: var(--color-text-light);
  font-style: italic;
}

.pub-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--color-border-subtle);
  margin-top: 4px;
}

.pub-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.keyword-pill {
  font-size: 0.76rem;
  padding: 2px 8px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

.pub-doi-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 600;
  padding: 6px 14px;
  background: var(--color-primary-subtle);
  color: var(--color-primary-dark);
  border: 1px solid rgba(3, 105, 161, 0.2);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.pub-doi-btn:hover {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}

.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-detail h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 4px;
}

.contact-detail p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

.contact-detail .sub-text {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.map-wrapper {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  min-height: 380px;
}

.map-iframe {
  width: 100%;
  height: 100%;
  min-height: 380px;
  border: none;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 44px 0 36px;
  border-top: 1px solid #1e293b;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

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

.footer-logo {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.footer-brand p {
  font-size: 0.88rem;
  color: #cbd5e1;
}

.footer-copyright {
  text-align: right;
  font-size: 0.84rem;
}

/* Enlace al repositorio GitHub oficial en el pie de página */
.footer-repo-link {
  margin-bottom: 6px;
}

.footer-repo {
  display: inline-flex;
  align-items: center;
  color: #cbd5e1;
  font-weight: 500;
  font-size: 0.84rem;
  transition: color var(--transition-fast);
}

.footer-repo:hover {
  color: var(--color-primary-light);
}

.footer-affiliations {
  color: #64748b;
  margin-top: 4px;
}

/* ==========================================================================
   Lightbox Modal
   ========================================================================== */

.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.lightbox-dialog {
  position: relative;
  z-index: 2001;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.lightbox-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-height: 85vh;
  max-width: 80vw;
}

.lightbox-img {
  max-height: 75vh;
  max-width: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xl);
}

.lightbox-footer {
  width: 100%;
  margin-top: 14px;
  text-align: center;
  color: #ffffff;
}

.lightbox-counter {
  font-size: 0.8rem;
  font-weight: 600;
  color: #94a3b8;
  display: block;
  margin-bottom: 4px;
}

.lightbox-caption {
  font-size: 0.92rem;
  color: #e2e8f0;
}

.lightbox-close {
  position: fixed;
  top: 24px;
  right: 28px;
  color: #ffffff;
  font-size: 2.2rem;
  line-height: 1;
  padding: 8px;
  z-index: 2002;
  transition: opacity var(--transition-fast);
}

.lightbox-close:hover {
  opacity: 0.7;
}

.lightbox-arrow {
  color: #ffffff;
  font-size: 2.5rem;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: all var(--transition-fast);
  user-select: none;
}

.lightbox-arrow:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* ==========================================================================
   Utilities & Responsiveness
   ========================================================================== */

.loading-spinner {
  padding: 32px;
  text-align: center;
  color: var(--color-text-light);
  font-style: italic;
  font-size: 0.95rem;
}

@media (max-width: 992px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .about-pillars {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }

  .hamburger-btn {
    display: flex;
  }

  .hero-title {
    font-size: 2.1rem;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .pub-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .pub-search-wrapper {
    max-width: 100%;
  }

  .footer-container {
    flex-direction: column;
    text-align: center;
  }

  .footer-copyright {
    text-align: center;
  }

  .lightbox-arrow {
    font-size: 1.8rem;
    padding: 8px 12px;
  }
}