/* CSS Custom Properties for Theming */
:root {
  /* Light Theme Colors - Modern 2025 Palette */
  --color-horizon-blue: #4A90E2;
  --color-ice-gray: #F8FAFC;
  --color-forest-green: #2D5A27;
  --color-coral: #FF6B6B;
  --color-terracotta: #E07A5F;
  
  /* Base Light Theme Variables */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-accent: #F1F5F9;
  --text-primary: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --border-color: #E2E8F0;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Accent Colors */
  --accent-primary: var(--color-horizon-blue);
  --accent-secondary: var(--color-forest-green);
  --accent-tertiary: var(--color-coral);
  --accent-quaternary: var(--color-terracotta);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-horizon-blue) 0%, var(--color-forest-green) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-coral) 0%, var(--color-terracotta) 100%);
  
  /* Typography */
  --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  /* Gap used between header and hero (can be adjusted) */
  --hero-gap: 60px;
  /* Fallback hero offset in case JS not executed (mobile browsers) */
  --hero-offset: 260px;
  /* Extra top inset used by some in-app browsers (Telegram, etc.) */
  --inapp-top-extra: 0px;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-base: 0.25s ease-in-out;
  --transition-slow: 0.35s ease-in-out;
}

/* Ensure anchor targets are not hidden behind fixed header */
section[id], .section {
  scroll-margin-top: calc(var(--header-height, 72px) + var(--hero-gap, 60px));
}

@media (max-width: 480px) {
  /* increase fallback on very small screens to avoid overlay by mobile UI chrome */
  :root {
  --hero-offset: 360px;
  }
}

@media (max-width: 768px) {
  :root {
    --hero-offset: 320px;
  }
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-card: #334155;
  --bg-accent: #475569;
  --text-primary: #F1F5F9;
  --text-secondary: #CBD5E1;
  --text-muted: #94A3B8;
  --border-color: #475569;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-secondary);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

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

a:hover {
  color: var(--accent-secondary);
}

/* Layout Components */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-3xl) 0;
}

.section__title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-2xl);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition-base);
}

.nav__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

/* Navigation Menu */
.nav__menu {
  display: flex;
  align-items: center;
}

.nav__links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-lg);
}

.nav__link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  position: relative;
}

.nav__link:hover {
  color: var(--accent-primary);
  background: var(--bg-accent);
  transform: translateY(-1px);
}

.nav__link:before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

.nav__link:hover:before {
  width: 80%;
}


/* Mobile Menu */
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  z-index: 50;
}

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

.mobile-menu__content {
  padding: var(--space-lg);
}

.mobile-menu__links {
  list-style: none;
  margin: 0;
  padding: 0;
  margin-bottom: var(--space-lg);
}

.mobile-menu__links li {
  margin-bottom: var(--space-sm);
}

.mobile-menu__link {
  display: block;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  border-left: 3px solid transparent;
}

.mobile-menu__link:hover {
  background: var(--bg-accent);
  border-left-color: var(--accent-primary);
  color: var(--accent-primary);
}


.mobile-menu-toggle {
  display: none;
}

.nav__logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.nav__logo:hover {
  text-decoration: none;
  color: inherit;
}

.logo__image {
  height: 50px;
  width: 50px;
  object-fit: contain;
  margin-bottom: var(--space-sm);
}

.logo__text {
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0;
}

.logo__tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

.nav__controls {
  display: flex;
  gap: var(--space-sm);
}

.btn__control {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn__control:hover {
  background: var(--accent-primary);
  color: white;
  transform: translateY(-1px);
}

.lang__text {
  font-size: 0.875rem;
  font-weight: 600;
}

/* Icons */
.icon {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon--large {
  width: 32px;
  height: 32px;
}

.icon--theme {
  transition: transform var(--transition-base);
}

[data-theme="dark"] .icon--theme {
  transform: rotate(180deg);
}

/* Hero Section */
.hero {
  /* Usar variable dinámica --hero-offset (calcula header + gap). Fallback a 260px */
  padding: var(--hero-offset, 260px) 0 var(--space-3xl);
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  position: relative;
  overflow: hidden;
}

/* Ajuste responsive: menos padding en pantallas pequeñas para no consumir tanto espacio vertical */
@media (max-width: 768px) {
  .hero {
    padding: var(--hero-offset, 260px) 0 var(--space-3xl);
  }
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%234A90E2' fill-opacity='0.05' fill-rule='nonzero'%3E%3Ccircle cx='7' cy='7' r='7'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
  z-index: 0;
}

.hero__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 600px;
}

.hero__title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__description {
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  color: var(--text-secondary);
}

.hero__actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero__visual {
  display: flex;
  justify-content: center;
}

.hero__card {
  background: var(--bg-card);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  text-align: center;
  max-width: 300px;
  border: 1px solid var(--border-color);
}

.card__icon {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.card__icon .icon {
  width: 48px;
  height: 48px;
  color: var(--accent-primary);
  fill: var(--accent-primary);
  stroke: none;
}

.hero__card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.hero__card p {
  font-size: 0.875rem;
  margin-bottom: 0;
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn--primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--secondary {
  background: transparent;
  color: var(--accent-primary);
  border: 2px solid var(--accent-primary);
}

.btn--secondary:hover {
  background: var(--accent-primary);
  color: white;
  transform: translateY(-2px);
}

.btn--full {
  width: 100%;
}

/* Accordion */
.accordion {
  max-width: 800px;
  margin: 0 auto;
}

.accordion__item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.accordion__item:hover {
  box-shadow: var(--shadow-md);
}

.accordion__header {
  width: 100%;
  padding: var(--space-lg);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-primary);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.accordion__header:hover {
  background: var(--bg-secondary);
}

.accordion__icon {
  width: 20px;
  height: 20px;
  stroke: var(--accent-primary);
  transition: transform var(--transition-base);
}

.accordion__item.active .accordion__icon {
  transform: rotate(180deg);
}

.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--bg-primary);
}

.accordion__content.active {
  max-height: 600px;
  overflow-y: auto;
  transition: max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion__content p {
  padding: 0 var(--space-lg) var(--space-lg);
  margin: 0;
  color: var(--text-secondary);
}

.accordion__content-wrapper {
  padding: var(--space-lg);
  max-height: 500px;
  overflow-y: auto;
}

/* Custom Scrollbar for Accordion Content */
.accordion__content-wrapper::-webkit-scrollbar {
  width: 8px;
}

.accordion__content-wrapper::-webkit-scrollbar-track {
  background: var(--bg-accent);
  border-radius: var(--radius-sm);
}

.accordion__content-wrapper::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: var(--radius-sm);
  transition: background var(--transition-base);
}

.accordion__content-wrapper::-webkit-scrollbar-thumb:hover {
  background: var(--accent-secondary);
}

/* Firefox Scrollbar */
.accordion__content-wrapper {
  scrollbar-width: thin;
  scrollbar-color: var(--accent-primary) var(--bg-accent);
}

/* Features Section */
.section--features {
  background: var(--bg-secondary);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.feature__card {
  background: #3b4a5c;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-base);
  color: white;
  position: relative;
}

.feature__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 255, 255, 0.2);
}

.feature__icon {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.feature__icon .icon {
  width: 48px;
  height: 48px;
  color: #5b9bd5;
  stroke: #5b9bd5;
  fill: none;
  stroke-width: 2;
}

.feature__card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: white;
  font-weight: 600;
}

.feature__card p {
  font-size: 0.875rem;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.4;
}

/* Optional feature styling */
.feature__card--optional {
  border: 2px dashed rgba(220, 53, 69, 0.3);
  background: #3b4a5c;
  position: relative;
}

.feature__card--optional::before {
  content: 'OPCIONAL';
  position: absolute;
  top: -8px;
  right: 12px;
  background: #dc3545;
  color: white;
  padding: 4px 8px;
  font-size: 0.7rem;
  font-weight: bold;
  border-radius: var(--radius-sm);
}

.feature__card--optional h3 {
  color: #ff6b6b;
}

.feature__card--optional:hover {
  border-color: #dc3545;
  background: #3b4a5c;
}

/* Dark theme adjustments for features */
[data-theme="dark"] .feature__card {
  background: #2a3441;
  border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .feature__card:hover {
  border-color: rgba(255, 255, 255, 0.25);
}

[data-theme="dark"] .feature__card--optional {
  background: #2a3441;
}

/* Responsive design for features */
@media (max-width: 768px) {
  .features__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .feature__card {
    padding: var(--space-lg);
  }
  
  .feature__icon .icon {
    width: 40px;
    height: 40px;
  }
}

/* Modalities */
.modalities__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.modality__card {
  background: var(--bg-card);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

.modality__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.modality__card--featured {
  background: var(--gradient-primary);
  color: white;
  position: relative;
}

.modality__card--featured * {
  color: white;
}

.modality__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  position: relative;
}

.modality__icon {
  width: 40px;
  height: 40px;
  stroke: var(--accent-primary);
  fill: none;
  stroke-width: 2;
  flex-shrink: 0;
}

.modality__card--featured .modality__icon {
  stroke: white;
  fill: white;
}

.modality__badge {
  background: var(--accent-tertiary);
  color: white;
  font-size: 0.75rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-weight: 600;
  white-space: nowrap;
  margin-left: auto;
}

.modality__header h3 {
  color: var(--text-primary);
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.modality__card--featured .modality__header h3 {
  color: white;
}

.modality__content {
  color: var(--text-secondary);
  line-height: 1.6;
}

.modality__content p {
  margin: 0;
  font-size: 1rem;
}

.modality__card--featured .modality__content p {
  color: rgba(255, 255, 255, 0.9);
}

/* Smart-1-4U Section */
.section--smart14u {
  background: var(--gradient-primary);
  color: white;
  position: relative;
  overflow: hidden;
}

.section--smart14u::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05' fill-rule='nonzero'%3E%3Ccircle cx='7' cy='7' r='7'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
  z-index: 0;
}

.section--smart14u .section__title {
  color: white;
  -webkit-text-fill-color: white;
  /* Keep the Smart-1-4U title on a single line */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Allow wrapping on very small screens to avoid overflow */
@media (max-width: 420px) {
  .section--smart14u .section__title {
    white-space: normal;
  }
}

.smart14u__content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.smart14u__description {
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  color: rgba(255, 255, 255, 0.9);
}

.smart14u__benefits {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.benefit__item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.benefit__icon {
  width: 20px;
  height: 20px;
  stroke: white;
  fill: none;
  stroke-width: 2;
}

.benefit__item span {
  color: white;
  font-weight: 500;
}

/* Improved contrast for Smart-1-4U section in light theme */
[data-theme="light"] .section--smart14u .benefit__item {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(10px);
}

[data-theme="light"] .section--smart14u .benefit__item span {
  color: var(--text-primary);
  font-weight: 600;
  text-shadow: none;
}

[data-theme="light"] .section--smart14u .benefit__icon {
  stroke: var(--accent-primary);
}

.btn--smart14u {
  background: var(--accent-tertiary);
  color: white;
  padding: var(--space-lg) var(--space-2xl);
  font-size: 1.125rem;
  font-weight: 700;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
}

.btn--smart14u:hover {
  background: var(--accent-quaternary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.smart14u__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.smart14u__logo-link {
  display: block;
  transition: transform var(--transition-base);
}

.smart14u__logo-link:hover {
  transform: scale(1.05);
}

.smart14u__logo {
  width: 200px;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

/* Companies Section */
.section--companies {
  background: var(--bg-secondary);
}

.companies__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.company__card {
  background: var(--bg-card);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

.company__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}

.company__logo {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-lg);
  height: 60px;
  align-items: center;
}

.company__image {
  max-height: 60px;
  max-width: 150px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.company__icon {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.company__icon .icon {
  width: 40px;
  height: 40px;
  color: var(--accent-primary);
}

.company__card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.company__card p {
  font-size: 0.875rem;
  margin-bottom: 0;
  color: var(--text-muted);
}

/* Services Footer Section */
.section--services-footer {
  background: var(--bg-secondary);
  padding: var(--space-xl) 0;
}

.services-footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.service__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: inherit;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.service__link:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: inherit;
  text-decoration: none;
}

.service__logo {
  width: 60px;
  height: 60px;
  object-fit: contain;
  margin-bottom: var(--space-md);
}

.service__name {
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
}

/* Accordion Content Wrapper */
.accordion__content-wrapper {
  padding: var(--space-xl);
  background: var(--bg-card);
}

.accordion__content-wrapper p {
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Diagnostic Section */
.diagnostic__title, .modalities__title, .benefits__title, .integration__title, .monitoring__title {
  color: var(--accent-primary);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.diagnostic__checklist {
  list-style: none;
  padding: 0;
  margin: var(--space-md) 0;
}

.diagnostic__checklist li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.diagnostic__cta {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: var(--bg-accent);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-primary);
}

/* Modalities Section */
.modality__option {
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
}

.modality__option--featured {
  border-color: var(--accent-primary);
  background: var(--bg-accent);
}

.modality__name {
  color: var(--accent-primary);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.modality__description {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

.modality__features {
  list-style: none;
  padding: 0;
}

.modality__features li {
  padding: var(--space-xs) 0;
  color: var(--text-primary);
  font-size: 0.9rem;
}

/* Benefits Section */
.benefits__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.benefit__item {
  text-align: center;
  padding: var(--space-lg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  transition: all var(--transition-base);
}

.benefit__item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.benefit__icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.benefit__item h6 {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.benefit__item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Integration Section */
.integration__modules {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.module__card {
  text-align: center;
  padding: var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-card);
}

.module__icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.module__card h6 {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.module__card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.integration__compatibility {
  margin-top: var(--space-lg);
}

.integration__compatibility h6 {
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.compatibility__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tag {
  padding: var(--space-xs) var(--space-sm);
  background: var(--accent-primary);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
}

/* Monitoring Section */
.monitoring__features {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.monitoring__feature {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.feature__emoji {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.feature__content h6 {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.feature__content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Legal Section */
.section--legal {
  background: var(--bg-secondary);
}

.section__subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.legal__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.legal__card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-base);
}

.legal__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.legal__header {
  padding: var(--space-lg);
  background: var(--gradient-primary);
  color: white;
  text-align: center;
}

.legal__flag {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.legal__header h3 {
  color: white;
  margin-bottom: var(--space-sm);
}

.legal__badge {
  background: rgba(255, 255, 255, 0.2);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
}

.legal__content {
  padding: var(--space-lg);
}

.legal__requirements {
  list-style: none;
  padding: 0;
  margin: 0;
}

.legal__requirements li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-color);
  position: relative;
  padding-left: var(--space-lg);
}

.legal__requirements li:before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-tertiary);
  font-weight: bold;
}

.legal__requirements li:last-child {
  border-bottom: none;
}

/* Assessment/Needs Section */
.needs__title {
  color: var(--accent-primary);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.needs__assessment {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.assessment__item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding: var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-card);
}

.assessment__icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.assessment__content h6 {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.assessment__content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Activation Section */
.activation__title {
  color: var(--accent-primary);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.activation__features {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.activation__feature {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.activation__emoji {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.activation__content h6 {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.activation__content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Sectors Section */
.sectors__title {
  color: var(--accent-primary);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  text-align: center;
}

.sectors__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.sector__card {
  background: var(--bg-card);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all var(--transition-base);
}

.sector__card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.sector__icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.sector__card h6 {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.sector__card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Problems Section */
.problems__title {
  color: var(--accent-primary);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  text-align: center;
}

.problems__list {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.problem__item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding: var(--space-lg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
}

.problem__icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.problem__content h6 {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.problem__content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Section Backgrounds */
.section--how-it-works {
  background: var(--bg-primary);
}

.section--sectors {
  background: var(--bg-secondary);
}

.section--problems {
  background: var(--bg-primary);
}

.section--modalities {
  background: var(--bg-secondary);
}

/* Sector Detail Styles */
.sector-detail {
  display: grid;
  gap: var(--space-xl);
}

.sector-detail__problems,
.sector-detail__solutions {
  background: var(--bg-card);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.sector-detail__problems {
  border-left: 4px solid #e74c3c;
}

.sector-detail__solutions {
  border-left: 4px solid var(--accent-tertiary);
}

.sector-detail h5 {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.sector-detail ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sector-detail li {
  padding: var(--space-sm) 0;
  color: var(--text-secondary);
  line-height: 1.5;
  font-size: 0.9rem;
}

/* Problem Detail Styles */
.problem-detail {
  display: grid;
  gap: var(--space-xl);
}

.problem-detail__risk,
.problem-detail__solution {
  background: var(--bg-card);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.problem-detail__risk {
  border-left: 4px solid #e74c3c;
  background: linear-gradient(135deg, #fdf2f2 0%, var(--bg-card) 100%);
}

.problem-detail__solution {
  border-left: 4px solid var(--accent-tertiary);
  background: linear-gradient(135deg, #f0f9f4 0%, var(--bg-card) 100%);
}

/* Dark mode fixes for better contrast */
[data-theme="dark"] .problem-detail__risk {
  background: linear-gradient(135deg, #2d1b1b 0%, var(--bg-card) 100%);
  color: var(--text-primary);
}

[data-theme="dark"] .problem-detail__solution {
  background: linear-gradient(135deg, #1a2e1a 0%, var(--bg-card) 100%);
  color: var(--text-primary);
}

[data-theme="dark"] .problem-detail__risk p,
[data-theme="dark"] .problem-detail__solution p {
  color: var(--text-secondary);
}

[data-theme="dark"] .problem-detail__risk h5,
[data-theme="dark"] .problem-detail__solution h5 {
  color: var(--text-primary);
}

/* Fix Smart-1-4U section text contrast in dark mode */
[data-theme="dark"] .section--smart14u {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

[data-theme="dark"] .section--smart14u .smart14u__description {
  color: #f1f5f9;
  font-weight: 500;
}

[data-theme="dark"] .section--smart14u .benefit__item span {
  color: #f1f5f9;
  font-weight: 600;
}

[data-theme="dark"] .section--smart14u .benefit__icon {
  stroke: #f1f5f9;
}

/* Fix accordion content text in dark mode */
[data-theme="dark"] .accordion__content-wrapper {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

[data-theme="dark"] .accordion__content p {
  color: var(--text-secondary) !important;
}

[data-theme="dark"] .accordion__content h4,
[data-theme="dark"] .accordion__content h5,
[data-theme="dark"] .accordion__content h6 {
  color: var(--text-primary) !important;
}

[data-theme="dark"] .accordion__content ul li {
  color: var(--text-secondary) !important;
}

/* Fix diagnostic, needs, activation and other section text in dark mode */
[data-theme="dark"] .diagnostic__title,
[data-theme="dark"] .needs__title,
[data-theme="dark"] .activation__title,
[data-theme="dark"] .integration__title,
[data-theme="dark"] .monitoring__title {
  color: var(--text-primary) !important;
}

[data-theme="dark"] .diagnostic__checklist li,
[data-theme="dark"] .needs__assessment .assessment__content p,
[data-theme="dark"] .activation__content p,
[data-theme="dark"] .integration__content p,
[data-theme="dark"] .monitoring__feature p {
  color: var(--text-secondary) !important;
}

[data-theme="dark"] .assessment__content h6,
[data-theme="dark"] .activation__content h6,
[data-theme="dark"] .integration__content h6,
[data-theme="dark"] .feature__content h6 {
  color: var(--text-primary) !important;
}

.problem-detail h5 {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.problem-detail p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.problem-detail ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.problem-detail li {
  padding: var(--space-sm) 0;
  color: var(--text-secondary);
  line-height: 1.5;
  font-size: 0.9rem;
  position: relative;
  padding-left: var(--space-lg);
}

.problem-detail__solution li:before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-tertiary);
  font-weight: bold;
}

/* Modality Detail Styles */
.modality-detail {
  display: grid;
  gap: var(--space-xl);
}

.modality-detail--featured {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 2px solid var(--accent-primary);
  position: relative;
}

.modality-detail--featured:before {
  content: '⭐ RECOMENDADO';
  position: absolute;
  top: -12px;
  left: var(--space-lg);
  background: var(--accent-primary);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.modality-detail__description {
  text-align: center;
  padding: var(--space-lg);
  background: var(--bg-accent);
  border-radius: var(--radius-md);
}

.modality-detail__description p {
  font-size: 1rem;
  color: var(--text-primary);
  line-height: 1.6;
  margin: 0;
}

.modality-detail__features h5,
.modality-detail__ideal h5 {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  font-size: 1.125rem;
  text-align: center;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.feature-item {
  background: var(--bg-card);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-item--premium {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
}

.feature-item--premium .feature-item__icon {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

.feature-item__icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.feature-item h6 {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  font-size: 1rem;
}

.feature-item--premium h6 {
  color: white;
}

.feature-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

.feature-item--premium p {
  color: rgba(255, 255, 255, 0.9);
}

.modality-detail__ideal ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-sm);
}

.modality-detail__ideal li {
  background: var(--bg-card);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-primary);
  color: var(--text-secondary);
  font-size: 0.9rem;
  position: relative;
  padding-left: var(--space-xl);
}

.modality-detail__ideal li:before {
  content: '👥';
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
}

/* Featured Accordion Item */
.accordion__item--featured {
  border: 2px solid var(--accent-primary);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #f8fafc 0%, var(--bg-card) 100%);
  position: relative;
}

.accordion__item--featured:before {
  content: '⭐ RECOMENDADO';
  position: absolute;
  top: -12px;
  right: var(--space-lg);
  background: var(--accent-primary);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 10;
}

.accordion__item--featured .accordion__header {
  background: linear-gradient(135deg, var(--accent-primary), #4c6ef5);
  color: white;
  border-radius: var(--radius-md);
}

.accordion__item--featured .accordion__title {
  color: white;
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .sector-detail,
  .problem-detail,
  .modality-detail {
    gap: var(--space-lg);
  }
  
  .feature-item--premium .feature-item__icon {
    width: 50px;
    height: 50px;
  }
}

/* Contact Section */
.section--contact {
  background: var(--gradient-primary);
  color: white;
}

.section--contact .section__title {
  color: white;
  -webkit-text-fill-color: white;
}

.contact__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.contact__info h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
  color: white;
}

.contact__info p {
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xl);
}

.contact__methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact__btn {
  background: var(--accent-tertiary);
  color: white;
  font-size: 1.125rem;
  font-weight: 700;
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.contact__btn:hover {
  background: var(--accent-quaternary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  color: white;
}

.contact__direct h4 {
  color: white;
  margin-bottom: var(--space-md);
  font-size: 1.125rem;
}

.contact__options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.contact__option {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.contact__option:hover {
  background: rgba(255, 255, 255, 0.1);
  color: white;
}

.contact__icon {
  width: 20px;
  height: 20px;
  fill: currentColor;
  stroke: none;
}

.contact__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.contact__card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-xl);
}

.contact__card h3 {
  color: white;
  margin-bottom: var(--space-md);
}

.contact__card p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 0;
}

.contact__form {
  background: white;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.form__group {
  margin-bottom: var(--space-lg);
}

.form__group label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.875rem;
}

.form__group input,
.form__group textarea {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-secondary);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
}

.form__group input:focus,
.form__group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form__group textarea {
  resize: vertical;
  min-height: 100px;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.footer__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__section h3,
.footer__section h4 {
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.footer__section ul {
  list-style: none;
}

.footer__section li {
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.footer__bottom {
  text-align: center;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.footer__bottom p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero__container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-xl);
  }
  
  .hero__title {
    font-size: 3rem;
  }
  
  .smart14u__content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-xl);
  }
  
  .contact__content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

/* Responsive Navigation */
@media (max-width: 1024px) {
  .nav__menu {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }
  
  .nav__container {
    padding: var(--space-md);
  }
  
  .logo__tagline {
    display: none;
  }
  
  .logo__text {
    font-size: 1.25rem;
  }
  
  .logo__tagline {
    font-size: 0.625rem;
  }
  
  .hero {
  /* Use dynamic hero offset to prevent header overlap on small screens */
  padding: var(--hero-offset, 220px) 0 var(--space-xl);
  }
  
  .hero__title {
    font-size: 2.5rem;
  }
  
  .section {
    padding: var(--space-xl) 0;
  }
  
  .section__title {
    font-size: 2rem;
  }
  
  .hero__actions {
    flex-direction: column;
  }
  
  .features__grid {
    grid-template-columns: 1fr;
  }
  
  .modalities__grid {
    grid-template-columns: 1fr;
  }
  
  .companies__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .nav__container {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .hero__title {
    font-size: 2rem;
  }
  
  .section__title {
    font-size: 1.75rem;
  }
  
  .accordion__header {
    padding: var(--space-md);
    font-size: 1rem;
  }
  
  .accordion__content p {
    padding: 0 var(--space-md) var(--space-md);
  }
}

/* Animation Classes */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Loading States */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--accent-primary);
  border-radius: 50%;
  border-top-color: transparent;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for accessibility */
.btn:focus,
.btn__control:focus,
.accordion__header:focus,
input:focus,
textarea:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-color: #000000;
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --shadow-xl: none;
  }
  
  [data-theme="dark"] {
    --border-color: #ffffff;
  }
}

/* Legal References Sub-section Styles */
.legal__references {
  margin-top: var(--space-3xl);
  padding-top: var(--space-3xl);
  border-top: 2px solid var(--border-color);
}

.legal__references-title {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: var(--space-lg);
}

.legal__references-subtitle {
  text-align: center;
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* References Accordion Styles */
.references__accordion {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.reference__accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.reference__accordion-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent-primary);
}

.reference__accordion-header {
  width: 100%;
  padding: var(--space-lg);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-primary);
  transition: all var(--transition-fast);
}

.reference__accordion-header:hover {
  background: var(--bg-secondary);
}

.reference__accordion-title {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.reference__flag {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.reference__accordion-icon {
  width: 20px;
  height: 20px;
  stroke: var(--accent-primary);
  transition: transform var(--transition-base);
}

.reference__accordion-item.active .reference__accordion-icon {
  transform: rotate(180deg);
}

.reference__accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.reference__accordion-content.active {
  max-height: 800px;
  transition: max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reference__accordion-wrapper {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.reference__summary {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.reference__detail {
  padding: var(--space-md);
  background: var(--bg-accent);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-primary);
}

.reference__detail strong {
  color: var(--accent-primary);
  font-weight: 600;
  font-size: 0.95rem;
  display: block;
  margin-bottom: var(--space-xs);
}

.reference__detail p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}

.reference__links h5 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-secondary);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.reference__links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-sm);
}

.reference__link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--accent-primary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.reference__link::before {
  content: '🔗';
  font-size: 0.75rem;
  opacity: 0.7;
}

.reference__link:hover {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* Essential base styles for downloaded files */
.reference__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

/* Dark mode styles for references */
[data-theme="dark"] .legal__references-title {
  color: var(--accent-primary);
}

[data-theme="dark"] .legal__references-subtitle {
  color: var(--text-secondary);
}

[data-theme="dark"] .reference__accordion-item {
  background: var(--bg-card);
  border-color: var(--border-color);
}

[data-theme="dark"] .reference__accordion-item:hover {
  border-color: var(--accent-primary);
}

[data-theme="dark"] .reference__accordion-header:hover {
  background: var(--bg-secondary);
}

[data-theme="dark"] .reference__accordion-title {
  color: var(--text-primary);
}

[data-theme="dark"] .reference__accordion-content {
  background: var(--bg-secondary);
}

[data-theme="dark"] .reference__detail {
  background: var(--bg-accent);
}

[data-theme="dark"] .reference__detail strong {
  color: var(--accent-primary);
}

[data-theme="dark"] .reference__detail p {
  color: var(--text-secondary);
}

[data-theme="dark"] .reference__links h5 {
  color: var(--accent-secondary);
}

[data-theme="dark"] .reference__link {
  background: var(--bg-card);
  border-color: var(--border-color);
  color: var(--accent-primary);
}

[data-theme="dark"] .reference__link:hover {
  background: var(--accent-primary);
  color: var(--bg-primary);
  border-color: var(--accent-primary);
}

/* Responsive design for references */
@media (max-width: 768px) {
  .reference__accordion-header {
    padding: var(--space-md);
  }
  
  .reference__accordion-title {
    font-size: 1rem;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }
  
  .reference__accordion-wrapper {
    padding: var(--space-md);
  }
  
  .reference__links-grid {
    grid-template-columns: 1fr;
  }
  
  .legal__references-title {
    font-size: 1.5rem;
  }
  
  .reference__accordion-content.active {
    max-height: 1000px;
  }
}

/* Footer download button specific styles */
.footer__download {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.5rem 1rem;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
}

/* Show PDF download only for Spanish variant (html[lang='es']) to keep translations consistent */
/* Show PDF download button for all languages by default; text and href are chosen by JS */
.footer__download { display: inline-flex; }