/* ================================================
   EUROPEAN INITIATIVE INDUSTRY 4.0
   CSS Principal - Diseño Moderno y Responsivo
   ================================================ */

/* Custom Properties - Sistema de Diseño */
:root {
  /* Colores principales */
  --color-primary: #1a237e;
  --color-primary-dark: #0d1554;
  --color-primary-light: #3949ab;
  --color-accent: #d4a41c;
  --color-accent-light: #f5c842;
  --color-accent-dark: #a67c00;
  
  /* Colores neutros */
  --color-white: #ffffff;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-text-inverse: #ffffff;
  --color-background: #ffffff;
  --color-surface: #f5f7fa;
  --color-surface-dark: #e8ecf1;
  
  /* Colores de estado */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* Espaciados */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  
  /* Tipografía */
  --font-sans: 'Outfit', system-ui, -apple-system, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  
  /* Bordes */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(26, 35, 126, 0.05);
  --shadow-md: 0 4px 12px rgba(26, 35, 126, 0.1);
  --shadow-lg: 0 12px 32px rgba(26, 35, 126, 0.15);
  --shadow-xl: 0 20px 48px rgba(26, 35, 126, 0.2);
  
  /* Transiciones */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: 0.5em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); }

p {
  margin-bottom: 1rem;
  color: var(--color-text);
}

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

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

strong {
  font-weight: 700;
  color: var(--color-primary);
}

/* Utilidades */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-2xl) 0;
}

.section--dark {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.section--dark h2,
.section--dark h3,
.section--dark strong {
  color: var(--color-white);
}

.section--dark p {
  color: rgba(255, 255, 255, 0.9);
}

.section--surface {
  background-color: var(--color-surface);
}

.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }

/* ================================================
   HEADER Y NAVEGACIÓN
   ================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(26, 35, 126, 0.08);
  transition: all var(--transition-base);
  height: 70px;
  display: flex;
  align-items: center;
}

.header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-lg);
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.header__logo {
  height: 60px;
  width: auto;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.header__brand:hover {
  opacity: 0.85;
}

.header__brand-text {
  font-family: Tahoma, 'Segoe UI', Geneva, Verdana, sans-serif;
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.1;
  display: none;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .header__brand-text {
    display: block;
  }
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex: 1;
  justify-content: flex-end;
}

.nav__list {
  display: flex;
  list-style: none;
  gap: var(--space-md);
  align-items: center;
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  padding: var(--space-sm) var(--space-sm);
  position: relative;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__lang {
  display: flex;
  align-items: center;
  gap: 0;
  padding-left: var(--space-md);
  border-left: 1px solid rgba(26, 35, 126, 0.15);
}

.nav__lang-link {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-light);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 0;
  transition: all var(--transition-fast);
  border-bottom: 2px solid transparent;
}

.nav__lang-link:hover,
.nav__lang-link--active {
  background: transparent;
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

/* Menú móvil */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition-fast);
}

/* ================================================
   HERO SECTION
   ================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding-top: 70px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at 70% 30%, rgba(212, 164, 28, 0.15) 0%, transparent 50%);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -20%;
  width: 80%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(212, 164, 28, 0.1) 0%, transparent 60%);
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  padding: var(--space-xl);
}

.hero__badge {
  display: inline-block;
  background: rgba(212, 164, 28, 0.2);
  color: var(--color-accent);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
  border: 1px solid rgba(212, 164, 28, 0.3);
}

.hero__title {
  color: var(--color-white);
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: var(--space-lg);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero__title span {
  color: var(--color-accent);
}

.hero__subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  max-width: 700px;
  margin: 0 auto var(--space-xl);
  line-height: 1.8;
}

.hero__subtitle span,
.hero__subtitle strong {
  color: var(--color-accent);
  font-weight: 700;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212, 164, 28, 0.4);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

.btn--outline-dark {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline-dark:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ================================================
   FEATURES / MISIONES
   ================================================ */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.feature-card {
  background: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-accent);
  transform: scaleY(0);
  transition: transform var(--transition-base);
}

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

.feature-card:hover::before {
  transform: scaleY(1);
}

.feature-card__icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
}

.feature-card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
}

.feature-card__text {
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ================================================
   STATS / NÚMEROS
   ================================================ */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  text-align: center;
}

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

.stat__number {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat__label {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.8);
}

/* ================================================
   PILARES / GRID COLUMNS
   ================================================ */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.pillar {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.pillar__header {
  background: var(--color-primary);
  padding: var(--space-lg);
  position: relative;
}

.pillar__number {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-sm);
}

.pillar__title {
  color: var(--color-white);
  font-size: var(--font-size-lg);
  margin: 0;
}

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

.pillar__list {
  list-style: none;
}

.pillar__list li {
  padding: var(--space-sm) 0;
  padding-left: var(--space-lg);
  position: relative;
  color: var(--color-text-light);
}

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

/* ================================================
   SERVICES GRID
   ================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-xl);
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.service-card__header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.service-card__header::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(212, 164, 28, 0.2) 0%, transparent 60%);
}

.service-card__icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.service-card__title {
  color: var(--color-white);
  margin: 0;
}

.service-card__content {
  padding: var(--space-xl);
}

.service-card__text {
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
}

.service-card__features {
  list-style: none;
}

.service-card__features li {
  padding: var(--space-sm) 0;
  padding-left: var(--space-lg);
  position: relative;
  font-size: var(--font-size-sm);
}

.service-card__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: bold;
}

/* ================================================
   FAQ SECTION
   ================================================ */
.faq-list {
  max-width: 800px;
  margin: var(--space-xl) auto 0;
}

.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-item summary {
  padding: var(--space-lg);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition-fast);
}

.faq-item summary:hover {
  background: var(--color-surface);
}

.faq-item summary::after {
  content: '+';
  font-size: var(--font-size-xl);
  color: var(--color-accent);
  transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item__content {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ================================================
   ABOUT / TEAM
   ================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-content h2 {
  margin-bottom: var(--space-lg);
}

.about-image {
  position: relative;
}

.about-image__main {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-image::before {
  content: '';
  position: absolute;
  top: var(--space-lg);
  left: var(--space-lg);
  right: calc(var(--space-lg) * -1);
  bottom: calc(var(--space-lg) * -1);
  border: 3px solid var(--color-accent);
  border-radius: var(--radius-lg);
  z-index: -1;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: var(--space-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-accent);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(var(--space-xl) * -1 + 2px);
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--color-white);
  border: 3px solid var(--color-accent);
  border-radius: 50%;
}

.timeline-item__year {
  color: var(--color-accent);
  font-weight: 700;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}

.timeline-item__title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.timeline-item__text {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

/* ================================================
   CONTACT FORM
   ================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-2xl);
}

.contact-info {
  background: var(--color-primary);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  color: var(--color-white);
}

.contact-info h3 {
  color: var(--color-white);
  margin-bottom: var(--space-lg);
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.contact-info__icon {
  width: 44px;
  height: 44px;
  background: rgba(212, 164, 28, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info__label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.contact-info__value {
  font-size: var(--font-size-lg);
  color: var(--color-white);
}

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

.form-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(2, 1fr);
}

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

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

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--color-surface-dark);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
  background: var(--color-white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* ================================================
   FOOTER
   ================================================ */
.footer {
  background: var(--color-primary-dark);
  color: var(--color-white);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  height: 50px;
  margin-bottom: var(--space-lg);
}

.footer__text {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  line-height: 1.8;
}

.footer__title {
  color: var(--color-accent);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.footer__links {
  list-style: none;
}

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

.footer__links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__copyright {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
}

.footer__legal {
  display: flex;
  gap: var(--space-lg);
}

.footer__legal a {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
}

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

/* ================================================
   TABLES
   ================================================ */
.table-wrapper {
  overflow-x: auto;
  margin: var(--space-lg) 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

th, td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-surface);
}

th {
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

tr:hover td {
  background: var(--color-surface);
}

/* ================================================
   LISTS
   ================================================ */
.check-list {
  list-style: none;
}

.check-list li {
  padding: var(--space-sm) 0;
  padding-left: var(--space-xl);
  position: relative;
}

.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: bold;
  font-size: var(--font-size-lg);
}

/* Definition List */
dl {
  margin: var(--space-lg) 0;
}

dt {
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

dd {
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
  padding-left: var(--space-lg);
  border-left: 3px solid var(--color-accent);
}

/* ================================================
   CTA SECTIONS
   ================================================ */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(212, 164, 28, 0.15) 0%, transparent 60%);
}

.cta-section h2 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
  position: relative;
  z-index: 1;
}

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 1024px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav__list {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    padding: 100px var(--space-xl) var(--space-xl);
    box-shadow: var(--shadow-xl);
    transition: right var(--transition-base);
    z-index: 999;
  }
  
  .nav__list.active {
    right: 0;
  }
  
  .nav__toggle {
    display: flex;
    z-index: 1001;
  }
  
  .nav__lang {
    border-left: none;
    padding-left: 0;
  }
  
  .hero__content {
    padding: var(--space-lg);
  }
  
  .features,
  .pillars,
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .form-group--full {
    grid-column: 1;
  }
  
  .footer__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer__brand {
    max-width: none;
  }
  
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .about-image::before {
    display: none;
  }
  
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  :root {
    --space-lg: 1.5rem;
    --space-xl: 2.5rem;
    --space-2xl: 4rem;
  }
  
  .hero {
    min-height: auto;
    padding: 120px 0 var(--space-2xl);
  }
  
  .hero__cta {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .stats {
    grid-template-columns: 1fr;
  }
}

/* Animaciones */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeInUp 0.6s ease-out;
}

/* Skip link para accesibilidad */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-md);
  z-index: 10000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* ================================================
   PAGE HERO (Internal Pages)
   ================================================ */
.page-hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at 70% 30%, rgba(212, 164, 28, 0.15) 0%, transparent 50%);
}

.page-hero__title {
  color: var(--color-white);
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: var(--space-md);
}

.page-hero__subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
}

/* Fix contrast for strong elements inside page-hero */
.page-hero strong,
.page-hero__subtitle strong {
  color: var(--color-accent);
}

/* ================================================
   ADDITIONAL BUTTONS
   ================================================ */
.btn--secondary {
  background: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-surface);
}

.btn--secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn--outline-light {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
  color: var(--color-white);
}

/* ================================================
   SECTION PRIMARY
   ================================================ */
.section--primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
}

.cta-section--light {
  background: transparent;
}

.cta-section--light::before {
  display: none;
}

.cta-section__buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ================================================
   FEATURE CARD HIGHLIGHT
   ================================================ */
.feature-card--highlight {
  border: 2px solid var(--color-surface-dark);
}

.feature-card--highlight:hover {
  border-color: var(--color-accent);
}

.feature-card__list {
  list-style: none;
  margin-top: var(--space-md);
}

.feature-card__list li {
  padding: var(--space-xs) 0;
  padding-left: var(--space-lg);
  position: relative;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.feature-card__list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

.pillar__link {
  display: inline-block;
  margin-top: var(--space-md);
  color: var(--color-primary);
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.pillar__link:hover {
  color: var(--color-accent);
}

/* ================================================
   CERTIFICATION BLOCKS
   ================================================ */
.certification-block {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.certification-block__header {
  background: var(--color-primary);
  padding: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.certification-block__number {
  width: 60px;
  height: 60px;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  flex-shrink: 0;
}

.certification-block__header h2 {
  color: var(--color-white);
  margin: 0;
}

.certification-block__subtitle {
  color: var(--color-accent);
  font-size: var(--font-size-sm);
  margin: var(--space-xs) 0 0;
}

.certification-block__content {
  padding: var(--space-xl);
}

.certification-block__content h3 {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
  margin: var(--space-xl) 0 var(--space-lg);
}

.certification-block__content h3:first-of-type {
  margin-top: var(--space-lg);
}

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

.evaluation-item {
  background: var(--color-surface);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
}

.evaluation-item h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.evaluation-item ul {
  list-style: none;
}

.evaluation-item li {
  padding: var(--space-xs) 0;
  padding-left: var(--space-lg);
  position: relative;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.evaluation-item li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

/* Certification Result */
.certification-result {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: var(--space-xl);
  border-radius: var(--radius-md);
  margin-top: var(--space-xl);
}

.certification-result h3 {
  color: var(--color-white) !important;
  margin: 0 0 var(--space-md) !important;
}

.certification-result p {
  color: rgba(255, 255, 255, 0.9);
}

.certification-result ul {
  list-style: none;
  margin-top: var(--space-md);
}

.certification-result li {
  color: rgba(255, 255, 255, 0.9);
  padding: var(--space-xs) 0;
  padding-left: var(--space-lg);
  position: relative;
}

.certification-result li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

.seal-example {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
  margin-top: var(--space-md);
}

.seal-example strong {
  display: block;
  color: var(--color-accent) !important;
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.seal-example span {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
}

/* Criteria Grid */
.criteria-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.criteria-item {
  background: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-accent);
}

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

.criteria-item h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-sm);
}

.criteria-item p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin: 0;
}

/* Levels Grid */
.levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.level-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.level-card__header {
  background: var(--color-primary);
  padding: var(--space-md) var(--space-lg);
}

.level-card__level {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

.level-card__header h4 {
  color: var(--color-white);
  font-size: var(--font-size-base);
  margin: 0;
}

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

.level-card__content p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-sm);
}

.level-card__content p:last-child {
  margin-bottom: 0;
  color: var(--color-text-light);
}

/* ================================================
   WORK LINES (Observatory)
   ================================================ */
.work-lines {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.work-line {
  display: flex;
  gap: var(--space-lg);
  background: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.work-line__number {
  width: 50px;
  height: 50px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  flex-shrink: 0;
}

.work-line__content h3 {
  margin-bottom: var(--space-md);
}

.work-line__content p {
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.work-line__content ul {
  list-style: none;
}

.work-line__content li {
  padding: var(--space-xs) 0;
  padding-left: var(--space-lg);
  position: relative;
  color: var(--color-text-light);
}

.work-line__content li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

/* IRIS Definition */
.iris-definition {
  max-width: 900px;
  margin: 0 auto;
}

.iris-definition__main blockquote {
  margin: 0;
}

/* Concept Grid */
.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.concept-card {
  background: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.concept-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
}

.concept-card ul {
  list-style: none;
  margin: var(--space-md) 0;
}

.concept-card li {
  padding: var(--space-xs) 0;
  padding-left: var(--space-lg);
  position: relative;
  color: var(--color-text-light);
}

.concept-card li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

.concept-card__question {
  color: var(--color-primary);
  font-style: italic;
  margin-top: var(--space-md);
}

.concept-card__example {
  background: var(--color-surface);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  margin-top: var(--space-md);
  font-size: var(--font-size-sm);
}

/* Comparison Table */
.comparison-table-wrapper {
  overflow-x: auto;
  margin: var(--space-xl) 0;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-lg);
  text-align: left;
  border-bottom: 1px solid var(--color-surface);
}

.comparison-table th {
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
}

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

.comparison-table tr:hover td {
  background: var(--color-surface);
}

/* Components Grid */
.components-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.component-card {
  background: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border-top: 4px solid var(--color-primary);
}

.component-card__number {
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.component-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
}

.component-card ul {
  list-style: none;
}

.component-card li {
  padding: var(--space-xs) 0;
  padding-left: var(--space-lg);
  position: relative;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.component-card li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* ================================================
   RESPONSIVE ADDITIONS
   ================================================ */
@media (max-width: 768px) {
  .certification-block__header {
    flex-direction: column;
    text-align: center;
  }
  
  .work-line {
    flex-direction: column;
    text-align: center;
  }
  
  .work-line__number {
    margin: 0 auto;
  }
  
  .concept-grid {
    grid-template-columns: 1fr;
  }
  
  .levels-grid,
  .criteria-grid,
  .evaluation-grid,
  .components-grid {
    grid-template-columns: 1fr;
  }
}

/* ================================================
   COOKIE BANNER
   ================================================ */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-primary-dark);
  color: var(--color-white);
  padding: var(--space-lg);
  z-index: 9999;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
  transform: translateY(100%);
  transition: transform var(--transition-base);
}

.cookie-banner.active {
  transform: translateY(0);
}

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

.cookie-banner__text {
  flex: 1;
  min-width: 280px;
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.cookie-banner__text a {
  color: var(--color-accent);
  text-decoration: underline;
}

.cookie-banner__text a:hover {
  color: var(--color-accent-light);
}

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

.cookie-banner__btn {
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  white-space: nowrap;
}

.cookie-banner__btn--accept {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}

.cookie-banner__btn--accept:hover {
  background: var(--color-accent-light);
}

.cookie-banner__btn--reject {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.cookie-banner__btn--reject:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
  .cookie-banner__inner {
    flex-direction: column;
    text-align: center;
  }
  
  .cookie-banner__buttons {
    width: 100%;
    justify-content: center;
  }
}

/* ================================================
   LEGAL PAGES STYLES
   ================================================ */
.legal-page {
  padding-top: 100px;
  padding-bottom: var(--space-2xl);
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.legal-content h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-lg);
}

.legal-content h2 {
  font-size: var(--font-size-xl);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-surface-dark);
}

.legal-content h3 {
  font-size: var(--font-size-lg);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.legal-content p {
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.legal-content ul, .legal-content ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

.legal-content li {
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.legal-content a {
  color: var(--color-primary);
  text-decoration: underline;
}

.legal-content a:hover {
  color: var(--color-primary-light);
}

.legal-meta {
  background: var(--color-surface);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xl);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.legal-meta p {
  margin-bottom: var(--space-xs);
}

.legal-meta strong {
  color: var(--color-text);
}

/* Article Meta / Author Info */
.article-meta {
  background: var(--color-surface);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  margin-top: var(--space-xl);
  border-left: 4px solid var(--color-primary);
}

.article-meta p {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.article-meta strong {
  color: var(--color-text);
}

.article-meta time {
  font-weight: 500;
}

/* ================================================
   Language Suggestion Banner
   ================================================ */

.lang-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  padding: var(--space-md);
  transform: translateY(100%);
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
  pointer-events: none;
}

.lang-banner--visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.lang-banner--hidden {
  transform: translateY(100%);
  opacity: 0;
}

.lang-banner__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(26, 35, 126, 0.1);
  position: relative;
}

.lang-banner__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-full);
  color: var(--color-white);
  flex-shrink: 0;
}

.lang-banner__icon svg {
  width: 20px;
  height: 20px;
}

.lang-banner__message {
  flex: 1 1 auto;
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text);
  text-align: center;
  min-width: 200px;
}

.lang-banner__buttons {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.lang-banner__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.lang-banner__btn--primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: var(--color-primary-dark);
  border: none;
}

.lang-banner__btn--primary:hover {
  background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.lang-banner__btn--secondary {
  background: transparent;
  color: var(--color-text-light);
  border: 1px solid var(--color-surface-dark);
}

.lang-banner__btn--secondary:hover {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-text-light);
}

.lang-banner__close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  background: transparent;
  border: none;
  color: var(--color-text-light);
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.lang-banner__close:hover {
  background: var(--color-surface);
  color: var(--color-text);
}

.lang-banner__close svg {
  width: 18px;
  height: 18px;
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .lang-banner {
    padding: var(--space-sm);
  }
  
  .lang-banner__inner {
    padding: var(--space-md);
    padding-top: calc(var(--space-md) + 24px);
    gap: var(--space-sm);
  }
  
  .lang-banner__icon {
    display: none;
  }
  
  .lang-banner__message {
    font-size: var(--font-size-sm);
    width: 100%;
  }
  
  .lang-banner__buttons {
    width: 100%;
  }
  
  .lang-banner__btn {
    flex: 1;
    padding: var(--space-sm);
  }
}

/* Print styles */
@media print {
  .header,
  .footer,
  .nav,
  .btn,
  .cookie-banner,
  .lang-banner {
    display: none;
  }
  
  body {
    font-size: 12pt;
    color: black;
  }
  
  h1, h2, h3 {
    color: black;
  }
}