/* ============================================
   ALEXANDRIA'S DESIGN - PROFESSIONAL WEBSITE
   Nueva Identidad de Marca 2025
   ============================================ */

/* ============================================
   VARIABLES CSS - NUEVA PALETA PROFESIONAL
   ============================================ */
:root {
  /* Colores Principales */
  --academic-navy: #1E3A5F;
  --instructional-blue: #3182CE;
  --professional-teal: #0694A2;
  --academic-amber: #D97706;

  /* Tonos Neutros */
  --white: #FFFFFF;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* Estados y Feedback */
  --success: #059669;
  --warning: #D97706;
  --error: #DC2626;

  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgba(30, 58, 95, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(30, 58, 95, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(30, 58, 95, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(30, 58, 95, 0.15);

  /* Tipografía */
  --font-headings: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Espaciado */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Transiciones */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
}

/* ============================================
   RESET Y BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--gray-800);
  line-height: 1.6;
  background-color: var(--white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  font-weight: 600;
  line-height: 1.2;
  color: var(--academic-navy);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-normal);
}

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

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
  transition: var(--transition-normal);
}

/* ============================================
   NAVEGACIÓN
   ============================================ */
.navbar {
  background-color: var(--white);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--academic-navy), var(--instructional-blue));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.5rem;
  font-family: var(--font-headings);
}

.logo-text h2 {
  font-size: 1.25rem;
  margin-bottom: 0;
  color: var(--academic-navy);
}

.logo-text .tagline {
  font-size: 0.75rem;
  color: var(--gray-600);
  font-weight: 400;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-menu a {
  color: var(--gray-700);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: var(--transition-normal);
}

.nav-menu a:hover {
  color: var(--instructional-blue);
  background-color: var(--gray-50);
}

.nav-menu .btn-primary {
  background-color: var(--academic-navy);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-md);
}

.nav-menu .btn-primary:hover {
  background-color: var(--instructional-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--academic-navy);
  border-radius: 2px;
  transition: var(--transition-normal);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  background: linear-gradient(135deg, var(--academic-navy) 0%, var(--instructional-blue) 100%);
  color: var(--white);
  padding: var(--spacing-3xl) var(--spacing-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
  line-height: 1.8;
}

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

.btn {
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: var(--transition-normal);
  cursor: pointer;
}

.btn-white {
  background-color: var(--white);
  color: var(--academic-navy);
}

.btn-white:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.btn-outline {
  border: 2px solid var(--white);
  color: var(--white);
  background-color: transparent;
}

.btn-outline:hover {
  background-color: var(--white);
  color: var(--academic-navy);
}

/* ============================================
   TRUST BAR
   ============================================ */
.trust-bar {
  background-color: var(--gray-50);
  padding: var(--spacing-lg) var(--spacing-lg);
  border-bottom: 1px solid var(--gray-200);
}

.trust-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--gray-700);
  font-size: 0.875rem;
  font-weight: 600;
}

.badge-icon {
  width: 24px;
  height: 24px;
  background-color: var(--instructional-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 0.75rem;
}

/* ============================================
   CONTAINER GENÉRICO
   ============================================ */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-lg);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-sm);
  font-size: 2.5rem;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 700px;
  margin: 0 auto;
}

/* ============================================
   SECTORES
   ============================================ */
.sectores {
  background-color: var(--white);
}

.sectores-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-lg);
}

.sector-card {
  background-color: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  text-align: center;
  transition: var(--transition-normal);
  cursor: pointer;
}

.sector-card:hover {
  border-color: var(--instructional-blue);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.sector-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-md);
  background: linear-gradient(135deg, var(--instructional-blue), var(--professional-teal));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.sector-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.sector-card p {
  color: var(--gray-600);
  font-size: 0.875rem;
}

/* ============================================
   FEATURED PROJECT
   ============================================ */
.featured-project {
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
}

.project-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.project-image {
  background-color: var(--white);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  position: relative;
  overflow: hidden;
}

.project-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(49, 130, 206, 0.1), rgba(6, 148, 162, 0.1));
}

.image-placeholder {
  text-align: center;
  color: var(--gray-400);
  position: relative;
  z-index: 1;
}

.image-placeholder-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
}

.project-info h3 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  color: var(--academic-navy);
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--gray-600);
}

.meta-icon {
  color: var(--instructional-blue);
}

.project-description {
  color: var(--gray-700);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.project-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.stat {
  text-align: center;
  padding: var(--spacing-md);
  background-color: var(--white);
  border-radius: var(--radius-lg);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--instructional-blue);
  display: block;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-600);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
}

.tag {
  padding: 0.375rem 0.75rem;
  background-color: var(--instructional-blue);
  color: var(--white);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 600;
}

.tag.tag-secondary {
  background-color: var(--professional-teal);
}

.tag.tag-accent {
  background-color: var(--academic-amber);
}

/* ============================================
   SERVICIOS
   ============================================ */
.servicios {
  background-color: var(--white);
}

.servicios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
}

.servicio-card {
  background-color: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.servicio-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: linear-gradient(180deg, var(--instructional-blue), var(--professional-teal));
  transition: var(--transition-slow);
}

.servicio-card:hover::before {
  height: 100%;
}

.servicio-card:hover {
  border-color: var(--instructional-blue);
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.servicio-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.servicio-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--instructional-blue), var(--professional-teal));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.servicio-card h3 {
  font-size: 1.25rem;
  color: var(--academic-navy);
}

.servicio-card p {
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.servicio-features {
  list-style: none;
}

.servicio-features li {
  padding: var(--spacing-xs) 0;
  color: var(--gray-700);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.servicio-features li::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
}

/* ============================================
   PORTFOLIO
   ============================================ */
.portfolio {
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.portfolio-card {
  background-color: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  cursor: pointer;
}

.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.portfolio-image {
  height: 200px;
  background: linear-gradient(135deg, var(--instructional-blue), var(--professional-teal));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}

.portfolio-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.portfolio-content {
  padding: var(--spacing-lg);
}

.portfolio-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
  color: var(--academic-navy);
}

.portfolio-client {
  font-size: 0.875rem;
  color: var(--instructional-blue);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.portfolio-card p {
  color: var(--gray-600);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.portfolio-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--gray-200);
}

.portfolio-tech {
  font-size: 0.75rem;
  color: var(--gray-600);
}

.portfolio-link {
  color: var(--instructional-blue);
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* ============================================
   METODOLOGÍA
   ============================================ */
.metodologia {
  background-color: var(--white);
}

.metodologia-process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
  position: relative;
}

.metodologia-process::before {
  content: '';
  position: absolute;
  top: 50px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg,
    var(--instructional-blue) 0%,
    var(--instructional-blue) 20%,
    var(--professional-teal) 40%,
    var(--professional-teal) 60%,
    var(--academic-amber) 80%,
    var(--academic-amber) 100%
  );
  z-index: 0;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-circle {
  width: 100px;
  height: 100px;
  margin: 0 auto var(--spacing-md);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--white);
  border: 4px solid var(--instructional-blue);
  font-weight: 700;
  transition: var(--transition-normal);
  cursor: pointer;
}

.step-circle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.process-step:nth-child(2) .step-circle { border-color: var(--instructional-blue); }
.process-step:nth-child(3) .step-circle { border-color: var(--professional-teal); }
.process-step:nth-child(4) .step-circle { border-color: var(--professional-teal); }
.process-step:nth-child(5) .step-circle { border-color: var(--academic-amber); }

.step-letter {
  font-size: 2rem;
  color: var(--instructional-blue);
}

.process-step:nth-child(2) .step-letter { color: var(--instructional-blue); }
.process-step:nth-child(3) .step-letter { color: var(--professional-teal); }
.process-step:nth-child(4) .step-letter { color: var(--professional-teal); }
.process-step:nth-child(5) .step-letter { color: var(--academic-amber); }

.step-number {
  font-size: 0.75rem;
  color: var(--gray-600);
}

.process-step h4 {
  font-size: 1rem;
  margin-bottom: var(--spacing-xs);
  color: var(--academic-navy);
}

.process-step p {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.5;
}

/* ============================================
   EQUIPO
   ============================================ */
.equipo {
  background: linear-gradient(135deg, var(--academic-navy) 0%, var(--instructional-blue) 100%);
  color: var(--white);
}

.equipo .section-header h2,
.equipo .section-header p {
  color: var(--white);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
}

.team-member {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  text-align: center;
  transition: var(--transition-normal);
}

.team-member:hover {
  transform: translateY(-5px);
  background-color: rgba(255, 255, 255, 0.15);
}

.member-photo {
  width: 150px;
  height: 150px;
  margin: 0 auto var(--spacing-md);
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  border: 4px solid rgba(255, 255, 255, 0.3);
}

.team-member h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
  color: var(--white);
}

.member-title {
  font-size: 1rem;
  color: var(--academic-amber);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

.member-bio {
  font-size: 0.875rem;
  line-height: 1.7;
  opacity: 0.95;
  margin-bottom: var(--spacing-md);
}

.member-expertise {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  justify-content: center;
}

.expertise-tag {
  padding: 0.375rem 0.75rem;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 600;
}

/* ============================================
   CTA FINAL
   ============================================ */
.cta-final {
  background: linear-gradient(135deg, var(--instructional-blue) 0%, var(--professional-teal) 100%);
  color: var(--white);
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

.cta-final::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta-final h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--white);
}

.cta-final p {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

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

.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  background-color: var(--academic-navy);
  color: var(--white);
  padding: var(--spacing-2xl) var(--spacing-lg) var(--spacing-lg);
}

.footer-content {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
  line-height: 1.7;
}

.footer-section a:hover {
  color: var(--academic-amber);
}

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

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.contact-info {
  list-style: none;
}

.contact-info li {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.footer-certifications {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.cert-badge {
  padding: 0.375rem 0.75rem;
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: var(--spacing-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(--spacing-md);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-links a {
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
}

.social-links a:hover {
  background-color: var(--academic-amber);
  transform: translateY(-3px);
}

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

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

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.5rem; }

  .hero h1 { font-size: 2.75rem; }

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

  .metodologia-process::before {
    display: none;
  }

  .project-content {
    grid-template-columns: 1fr;
  }

  .project-stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--white);
    flex-direction: column;
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }

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

  .mobile-menu-toggle {
    display: flex;
  }

  .hero {
    padding: var(--spacing-2xl) var(--spacing-lg);
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .trust-container {
    gap: var(--spacing-md);
  }

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

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

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

  .metodologia-process {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

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

  .project-stats {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .section-header h2 {
    font-size: 1.75rem;
  }

  .btn-large {
    padding: 1rem 1.5rem;
    font-size: 1rem;
  }
}

/* ============================================
   UTILIDADES
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

/* ============================================
   ACCESIBILIDAD
   ============================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

*:focus-visible {
  outline: 2px solid var(--instructional-blue);
  outline-offset: 2px;
}

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