/* ==========================================================================
   TECNOVA 2026 - TEC-RED Design System & Stylesheet
   Palette: Light Theme (White, Slate/Gris), Deep Blue, TEC-RED Orange
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Color Palette - White, Deep/Tech Blue, TEC-RED Orange */
  --bg-main: #FFFFFF;
  --bg-subtle: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-card-alt: #F1F5F9;

  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --text-light: #F8FAFC;

  --blue-dark: #0F172A;
  --blue-navy: #1E3A8A;
  --blue-primary: #1D4ED8;
  --blue-accent: #2563EB;
  --blue-light: #EFF6FF;
  --blue-border: #BFDBFE;

  --orange-primary: #F97316;
  --orange-hover: #EA580C;
  --orange-dark: #C2410C;
  --orange-light: #FFF7ED;
  --orange-border: #FFEDD5;

  --border-color: #E2E8F0;
  --border-focus: #2563EB;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 30px -5px rgba(15, 23, 42, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
  --shadow-orange: 0 8px 20px rgba(249, 115, 22, 0.25);
  --shadow-blue: 0 8px 20px rgba(37, 99, 235, 0.2);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', 'Plus Jakarta Sans', sans-serif;
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
}

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

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

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

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Section Common Styling */
section {
  padding: 5rem 0;
  position: relative;
}

.section-bg-alt {
  background-color: var(--bg-subtle);
}

.section-bg-blue {
  background: linear-gradient(135deg, #1E3A8A 0%, #0F172A 100%);
  color: var(--text-light);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background-color: var(--orange-light);
  color: var(--orange-dark);
  border: 1px solid var(--orange-border);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.section-badge.blue-badge {
  background-color: var(--blue-light);
  color: var(--blue-navy);
  border-color: var(--blue-border);
}

.section-title {
  font-size: 2.25rem;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.section-bg-blue .section-description {
  color: #94A3B8;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 85px;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.logo-img {
  height: 52px;
  width: auto;
  border-radius: 8px;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--blue-navy);
  letter-spacing: -0.02em;
  line-height: 1;
}

.brand-title span {
  color: var(--orange-primary);
}

.brand-sub {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  list-style: none;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.5rem 0.25rem;
  position: relative;
  transition: var(--transition-fast);
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--orange-primary);
  border-radius: 2px;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-fast);
  border: none;
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--orange-primary) 0%, var(--orange-hover) 100%);
  color: #FFFFFF;
  box-shadow: var(--shadow-orange);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(249, 115, 22, 0.35);
  color: #FFFFFF;
}

.btn-secondary {
  background-color: var(--blue-light);
  color: var(--blue-navy);
  border: 1px solid var(--blue-border);
}

.btn-secondary:hover {
  background-color: var(--blue-navy);
  color: #FFFFFF;
  border-color: var(--blue-navy);
}

.btn-outline-white {
  background-color: transparent;
  color: #FFFFFF;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
  background-color: #FFFFFF;
  color: var(--blue-navy);
  border-color: #FFFFFF;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--blue-navy);
  cursor: pointer;
}

/* ==========================================================================
   Hero Section (ENLARGED HERO IMAGE DISPLAY)
   ========================================================================== */
.hero-section {
  padding: 3.5rem 0 4.5rem 0;
  background: radial-gradient(circle at 90% 10%, rgba(249, 115, 22, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 10% 80%, rgba(37, 99, 235, 0.06) 0%, transparent 40%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr; /* Gave more width to the image side */
  gap: 3.5rem;
  align-items: center;
}

.hero-badge-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  background-color: var(--blue-light);
  color: var(--blue-navy);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  border: 1px solid var(--blue-border);
}

.hero-badge.highlight {
  background-color: var(--orange-light);
  color: var(--orange-dark);
  border-color: var(--orange-border);
}

.hero-title {
  font-size: 3rem;
  line-height: 1.15;
  color: var(--blue-dark);
  margin-bottom: 1rem;
}

.hero-title span {
  color: var(--orange-primary);
  background: linear-gradient(135deg, var(--orange-primary) 0%, var(--orange-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-motto {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--blue-navy);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-motto::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 3px;
  background-color: var(--orange-primary);
  border-radius: 2px;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

/* Countdown Timer */
.countdown-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-md);
}

.countdown-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.countdown-timer {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.count-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 60px;
}

.count-number {
  font-family: 'Outfit', sans-serif;
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--blue-navy);
  line-height: 1;
}

.count-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-top: 0.25rem;
  text-transform: uppercase;
}

.count-sep {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--orange-primary);
  margin-bottom: 0.8rem;
}

/* ENLARGED Hero Media Card */
.hero-media-wrapper {
  position: relative;
  width: 100%;
}

.hero-media-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.2), 0 0 0 1px var(--border-color);
  position: relative;
  transition: var(--transition-normal);
}

.hero-media-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25), 0 0 0 2px var(--orange-primary);
}

/* Increased height from 380px to 540px for larger visual display */
.hero-image {
  width: 100%;
  height: 540px;
  object-fit: cover;
  object-position: center;
  cursor: pointer;
  transition: var(--transition-normal);
}

.hero-media-card:hover .hero-image {
  scale: 1.02;
}

.hero-card-overlay {
  padding: 1.75rem 2rem;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0) 0%, rgba(15, 23, 42, 0.94) 100%);
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  color: #FFFFFF;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.hero-card-overlay h4 {
  color: #FFFFFF;
  font-size: 1.35rem;
  margin-bottom: 0.35rem;
}

.hero-card-overlay p {
  font-size: 0.95rem;
  color: #CBD5E1;
}

.expand-btn-icon {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}

.expand-btn-icon:hover {
  background: var(--orange-primary);
  border-color: var(--orange-primary);
  color: #FFFFFF;
}

.floating-badge {
  position: absolute;
  top: -15px;
  right: -15px;
  background-color: var(--orange-primary);
  color: #FFFFFF;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 0.9rem;
  box-shadow: var(--shadow-orange);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 10;
}

/* ==========================================================================
   INSTITUTIONAL LOGOS SHOWCASE (NUEVO & MEJORADO)
   ========================================================================== */
.institutional-logos-section {
  padding: 3rem 0;
  background-color: #FFFFFF;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.logos-section-title {
  text-align: center;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--blue-navy);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}

.logos-section-title::before,
.logos-section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background-color: var(--orange-primary);
}

.institution-logos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  align-items: center;
}

.logo-card {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: var(--transition-fast);
  height: 140px;
}

.logo-card:hover {
  transform: translateY(-4px);
  background-color: #FFFFFF;
  border-color: var(--blue-primary);
  box-shadow: var(--shadow-md);
}

.logo-card.featured-red {
  border-color: var(--orange-border);
  background-color: var(--orange-light);
}

.logo-card.featured-red:hover {
  border-color: var(--orange-primary);
}

.logo-card-img {
  max-height: 60px;
  max-width: 140px;
  object-fit: contain;
  margin-bottom: 0.75rem;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.05));
}

.logo-card-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--blue-navy);
  line-height: 1.2;
}

/* ==========================================================================
   Presentación & Objetivos
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text-content p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.75;
}

.highlight-box {
  background-color: var(--blue-light);
  border-left: 4px solid var(--blue-primary);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5rem 0;
}

.highlight-box p {
  margin-bottom: 0;
  font-weight: 600;
  color: var(--blue-navy);
}

.objectives-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.objective-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.objective-card:hover {
  transform: translateX(6px);
  border-color: var(--orange-primary);
  box-shadow: var(--shadow-md);
}

.obj-icon {
  width: 46px;
  height: 46px;
  min-width: 46px;
  border-radius: var(--radius-sm);
  background-color: var(--orange-light);
  color: var(--orange-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 800;
}

.obj-content h4 {
  font-size: 1.1rem;
  color: var(--blue-navy);
  margin-bottom: 0.4rem;
}

.obj-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Áreas Temáticas
   ========================================================================== */
.search-filter-box {
  max-width: 540px;
  margin: 0 auto 2.5rem auto;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 1rem 1.25rem 1rem 3rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.search-input:focus {
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.search-icon {
  position: absolute;
  left: 1.15rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  color: var(--text-muted);
}

.areas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
}

.area-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.area-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--blue-primary), var(--orange-primary));
  opacity: 0;
  transition: var(--transition-fast);
}

.area-card:hover {
  transform: translateY(-5deg);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-border);
}

.area-card:hover::before {
  opacity: 1;
}

.area-number {
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--orange-primary);
  background-color: var(--orange-light);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  width: fit-content;
  margin-bottom: 1rem;
}

.area-icon-title {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

.area-icon-title i {
  font-size: 1.6rem;
  color: var(--blue-primary);
  margin-top: 0.1rem;
}

.area-title {
  font-size: 1.15rem;
  color: var(--blue-navy);
  line-height: 1.35;
}

.area-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex-grow: 1;
}

/* ==========================================================================
   Convocatoria & Envíos (Resúmenes y Artículos)
   ========================================================================== */
.submission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.submission-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.submission-card.featured {
  border-color: var(--orange-border);
  background: linear-gradient(180deg, #FFFFFF 0%, var(--orange-light) 100%);
}

.sub-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.sub-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--blue-light);
  color: var(--blue-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.submission-card.featured .sub-icon {
  background-color: #FFEDD5;
  color: var(--orange-hover);
}

.sub-header h3 {
  font-size: 1.35rem;
  color: var(--blue-navy);
}

.rules-list {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.rules-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.85rem;
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.rules-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--orange-primary);
  font-weight: 800;
  font-size: 1.1rem;
}

.email-box {
  background-color: var(--bg-subtle);
  border: 1px dashed var(--blue-border);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.email-text {
  font-family: monospace;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--blue-navy);
}

/* ==========================================================================
   Fechas Importantes (Timeline)
   ========================================================================== */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: linear-gradient(180deg, var(--blue-primary) 0%, var(--orange-primary) 100%);
  transform: translateX(-50%);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  width: 50%;
  padding: 0 2.5rem;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

.timeline-dot {
  position: absolute;
  top: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: #FFFFFF;
  border: 4px solid var(--orange-primary);
  box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.2);
  z-index: 5;
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -12px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -12px;
}

.timeline-content {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition-fast);
}

.timeline-content:hover {
  transform: translateY(-3px);
  border-color: var(--orange-primary);
}

.timeline-date {
  font-family: 'Outfit', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--orange-primary);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.timeline-item:nth-child(odd) .timeline-date {
  justify-content: flex-end;
}

.timeline-title {
  font-size: 1.15rem;
  color: var(--blue-navy);
  margin-bottom: 0.5rem;
}

.timeline-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Inscripciones (Form & Card)
   ========================================================================== */
.registration-container {
  max-width: 860px;
  margin: 0 auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--blue-navy);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.15rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.98rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition-fast);
  background-color: #FFFFFF;
}

.form-control:focus {
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* ==========================================================================
   Comités
   ========================================================================== */
.tabs-header {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.tab-btn {
  padding: 0.65rem 1.35rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.tab-btn:hover {
  background-color: var(--blue-light);
  color: var(--blue-navy);
}

.tab-btn.active {
  background-color: var(--blue-navy);
  color: #FFFFFF;
  border-color: var(--blue-navy);
  box-shadow: var(--shadow-blue);
}

.committee-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.committee-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 1.15rem;
  transition: var(--transition-fast);
}

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

.member-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-primary) 0%, var(--blue-navy) 100%);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: var(--shadow-blue);
}

.member-info h4 {
  font-size: 1.05rem;
  color: var(--blue-navy);
  margin-bottom: 0.25rem;
}

.member-info p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Lugar del Congreso
   ========================================================================== */
.venue-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.venue-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
}

.venue-card h3 {
  font-size: 1.6rem;
  color: var(--blue-navy);
  margin-bottom: 1rem;
}

.venue-detail {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
  align-items: flex-start;
}

.venue-detail i {
  font-size: 1.35rem;
  color: var(--orange-primary);
  margin-top: 0.2rem;
}

.venue-detail div h5 {
  font-size: 1rem;
  color: var(--blue-navy);
  margin-bottom: 0.2rem;
}

.venue-detail div p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.map-container {
  width: 100%;
  height: 380px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ==========================================================================
   Programa (Agenda)
   ========================================================================== */
.day-selector {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.day-btn {
  padding: 1rem 2rem;
  background-color: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: center;
  transition: var(--transition-fast);
}

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

.day-btn.active {
  background-color: var(--blue-light);
  border-color: var(--blue-primary);
}

.day-btn h4 {
  font-size: 1.1rem;
  color: var(--blue-navy);
}

.day-btn span {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

.agenda-table-wrapper {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.agenda-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.agenda-table th {
  background-color: var(--blue-navy);
  color: #FFFFFF;
  padding: 1.15rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.agenda-table td {
  padding: 1.15rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.agenda-table tr:last-child td {
  border-bottom: none;
}

.agenda-table tr:nth-child(even) {
  background-color: var(--bg-subtle);
}

.agenda-time {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  color: var(--orange-dark);
  white-space: nowrap;
}

.agenda-activity {
  font-weight: 700;
  color: var(--blue-navy);
}

.badge-tag {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.tag-presencial {
  background-color: #DCFCE7;
  color: #15803D;
}

.tag-virtual {
  background-color: #E0F2FE;
  color: #0369A1;
}

.tag-especial {
  background-color: #FFEDD5;
  color: #C2410C;
}

/* ==========================================================================
   Contacto & Formulario de Correo
   ========================================================================== */
.contact-card {
  max-width: 860px;
  margin: 0 auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-md);
}

.contact-email-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.75rem;
  background-color: var(--blue-light);
  border: 1px solid var(--blue-border);
  border-radius: var(--radius-full);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--blue-navy);
  margin-bottom: 1.5rem;
  transition: var(--transition-fast);
}

.contact-email-btn:hover {
  background-color: var(--blue-navy);
  color: #FFFFFF;
}

.email-transmission-badge {
  background-color: var(--orange-light);
  border: 1px solid var(--orange-border);
  color: var(--orange-dark);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.footer {
  background-color: var(--blue-dark);
  color: #94A3B8;
  padding: 4rem 0 2rem 0;
  border-top: 1px solid #1E293B;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  color: #FFFFFF;
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}

.footer-brand h3 span {
  color: var(--orange-primary);
}

.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.6;
}

.footer-title {
  color: #FFFFFF;
  font-size: 1rem;
  margin-bottom: 1.25rem;
  font-weight: 700;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: #94A3B8;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--orange-primary);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #1E293B;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
}

/* ==========================================================================
   Modals (Badge, Abstract, Image Zoom & Email Status)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-fast);
}

.modal-backdrop.active,
.modal-backdrop[style*="display: flex"],
.modal-backdrop[style*="display:flex"] {
  opacity: 1;
  pointer-events: auto;
}

.modal-window {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  max-width: 650px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  padding: 2.25rem;
  position: relative;
  transform: translateY(20px);
  transition: var(--transition-normal);
}

.modal-backdrop.active .modal-window {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--bg-subtle);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  z-index: 10;
}

.modal-close:hover {
  background-color: var(--orange-light);
  color: var(--orange-dark);
}

.badge-card-result {
  background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-navy) 100%);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  margin-top: 1.5rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  border: 2px solid var(--orange-primary);
}

.badge-card-result::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, var(--orange-primary) 0%, transparent 70%);
  opacity: 0.35;
}

.badge-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--orange-primary);
  margin-bottom: 0.5rem;
}

.badge-name {
  font-size: 1.5rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 0.25rem;
}

.badge-role {
  display: inline-block;
  padding: 0.3rem 1rem;
  background-color: var(--orange-primary);
  color: #FFFFFF;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.badge-info-row {
  font-size: 0.9rem;
  color: #CBD5E1;
  margin-bottom: 0.25rem;
}

.qr-placeholder {
  width: 90px;
  height: 90px;
  background-color: #FFFFFF;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  margin: 1.25rem auto 0 auto;
}

/* Image Zoom Modal */
.image-zoom-window {
  max-width: 1000px;
  padding: 1.5rem;
  background-color: var(--blue-dark);
}

.zoom-image {
  width: 100%;
  height: auto;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 2px solid var(--orange-primary);
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-grid,
  .about-grid,
  .submission-grid,
  .venue-grid,
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-image {
    height: 380px;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: 100%;
    padding-left: 50px;
    padding-right: 0;
  }

  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    left: 0;
    text-align: left;
  }

  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 8px;
  }

  .timeline-item:nth-child(odd) .timeline-date {
    justify-content: flex-start;
  }

  .nav-menu {
    position: fixed;
    top: 85px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 85px);
    background-color: #FFFFFF;
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    left: 0;
  }

  .mobile-toggle {
    display: block;
  }

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

@media (max-width: 600px) {
  .hero-title {
    font-size: 2.1rem;
  }

  .hero-image {
    height: 300px;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .registration-container,
  .contact-card,
  .venue-card {
    padding: 1.5rem;
  }
}