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

:root {
  /* Variables de servicios para header y footer */
  --primary-gradient: linear-gradient(189deg,
      rgba(4, 12, 56, 1) 28%,
      rgba(21, 21, 87, 1) 49%,
      rgba(4, 12, 56, 1) 79%);
  --card-bg: rgb(2, 1, 83);
  --footer-gradient: linear-gradient(90deg, #0a0f2c, #0d1b4c);
  --white: #ffffff;
  --text-dark: #1a1a1a;
  --text-medium: #555;
  --border-light: #e5e5e5;
  --hover-blue: #141a35;
  --light-bg: #373055;
  --success-green: #18153f;

  /* Variables adicionales para contenido de quiénes somos */
  --primary-dark: #040c38;
  --primary-blue: #131c4e;
  --secondary-blue: #282b5c;
  --text-dark-alt: #332e53;
  --tagline-bg: #515885;
  --tagline-text: #0b1b4d;
  --text-light: #1a1a1a;
  --bg-light: #f8f9fa;

  /* Sombras */
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);

  /* Transiciones */
  --transition-base: 0.3s ease;
  --transition-smooth: 0.35s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--white);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Clase de utilidad para lectores de pantalla */
.sr-only,
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border-width: 0 !important;
}

/* ==========================================
   CONTENEDOR
   ========================================== */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ==========================================
   SECCIÓN PORTAFOLIO
   ========================================== */
.portfolio-section {
  padding: 85px 20px;
  background: var(--white);
}

.portfolio-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto 40px;
}

.portfolio-text {
  flex: 1;
  min-width: 300px;
}

.portfolio-title {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 900;
  color: var(--primary-blue);
  line-height: 1;
  margin-bottom: 10px;
}

.portfolio-subtitle {
  font-size: clamp(2rem, 5vw, 3.125rem);
  font-weight: 900;
  color: var(--primary-blue);
  margin-bottom: 20px;
}

.portfolio-description {
  font-size: clamp(1.1rem, 2vw, 1.5625rem);
  color: var(--text-dark);
  text-align: justify;
  line-height: 1.7;
}

/* Carrusel wrapper */
.carousel-wrapper {
  flex: 1;
  min-width: 300px;
}

#carouselPortfolio,
#carouselAbout {
  max-width: 100%;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

#carouselPortfolio .carousel-item,
#carouselAbout .carousel-item {
  height: 420px;
}

#carouselPortfolio .carousel-item img,
#carouselAbout .carousel-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Frase empresarial */
.company-tagline {
  display: flex;
  justify-content: center;
  padding: 20px 10px;
}

.tagline-content {
  background: var(--tagline-bg);
  color: var(--tagline-text);
  font-size: clamp(1.1rem, 2vw, 1.375rem);
  font-weight: 500;
  text-align: center;
  padding: 18px 40px;
  border-radius: 50px;
  max-width: 800px;
  width: 100%;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  transition: all var(--transition-base);
}

.tagline-content:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.tagline-content i {
  font-size: 1.5rem;
  color: var(--tagline-text);
}

.tagline-content p {
  margin: 0;
}

/* ==========================================
   SECCIÓN QUIÉNES SOMOS
   ========================================== */
.about-section {
  padding: 85px 20px;
  background: linear-gradient(to bottom, var(--white), var(--bg-light));
}

.about-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.about-text {
  flex: 1;
  min-width: 300px;
}

.about-title {
  font-size: clamp(2rem, 5vw, 3.125rem);
  font-weight: 900;
  color: var(--primary-blue);
  margin-bottom: 20px;
}

.about-description {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-dark);
  text-align: justify;
  line-height: 1.8;
}

/* ==========================================
   SECCIÓN VALORES
   ========================================== */
.values-section {
  padding: 70px 20px;
  background: var(--white);
  text-align: center;
}

.section-title {
  margin-bottom: 50px;
  font-size: clamp(1.5rem, 3vw, 1.8rem);
  font-weight: 700;
  color: var(--secondary-blue);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
  max-width: 1200px;
  margin: 0 auto;
}

.value-card {
  padding: 30px;
  border-radius: 20px;
  background: var(--primary-gradient);
  color: var(--white);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid transparent;
}

.value-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
  border-color: rgba(255, 255, 255, 0.2);
}

.value-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.value-icon i {
  font-size: 28px;
  color: var(--white);
}

.value-title {
  margin-bottom: 20px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
}

.value-image {
  width: 100%;
  height: 180px;
  overflow: hidden;
  border-radius: 12px;
  margin-top: 15px;
}

.value-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.value-card:hover .value-image img {
  transform: scale(1.1);
}

/* ==========================================
   SECCIÓN DIFERENCIADORES
   ========================================== */
.differentiators-section {
  padding: 50px 20px;
  background: linear-gradient(to bottom, var(--bg-light), var(--white));
  text-align: center;
}

.differentiators-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  max-width: 1200px;
  margin: 0 auto;
}

.differentiators-intro {
  grid-column: 1 / -1;
  max-width: 800px;
  margin: 0 auto 20px;
  padding: 30px;
  background: rgba(4, 12, 56, 0.03);
  border-radius: 15px;
}

.differentiators-intro p {
  font-size: 1.1rem;
  color: var(--secondary-blue);
  line-height: 1.7;
  margin: 0;
}

.differentiator-card {
  padding: 30px 25px;
  border-radius: 20px;
  background: var(--primary-gradient);
  color: var(--white);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.differentiator-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
}

.differentiator-card i {
  font-size: 2.5rem;
  color: var(--white);
  margin-bottom: 10px;
}

.differentiator-card p {
  font-size: 1rem;
  color: var(--white);
  margin: 0;
  text-align: center;
}

/* ==========================================
   SECCIÓN MISIÓN Y VISIÓN
   ========================================== */
.mission-vision-section {
  padding: 70px 20px;
  background: var(--white);
  text-align: center;
}

.mission-vision-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.mv-intro {
  grid-column: 1 / -1;
  max-width: 800px;
  margin: 0 auto 20px;
  padding: 30px;
  background: rgba(4, 12, 56, 0.03);
  border-radius: 15px;
}

.mv-intro p {
  font-size: 1.1rem;
  color: var(--secondary-blue);
  line-height: 1.7;
  margin: 0;
}

.mv-card {
  padding: 40px 30px;
  border-radius: 20px;
  background: var(--primary-gradient);
  color: var(--white);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.mv-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.7);
}

.mv-icon {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid rgba(255, 255, 255, 0.3);
}

.mv-icon i {
  font-size: 35px;
  color: var(--white);
}

.mv-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin: 0;
}

.mv-description {
  font-size: 1rem;
  color: var(--white);
  line-height: 1.7;
  margin: 0;
  text-align: center;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

/* Tablets */
@media (max-width: 1024px) {
  .portfolio-container,
  .about-container {
    gap: 30px;
  }

  #carouselPortfolio .carousel-item,
  #carouselAbout .carousel-item {
    height: 350px;
  }
}

/* Móviles */
@media (max-width: 768px) {
  /* Secciones */
  .portfolio-section,
  .about-section {
    padding: 60px 20px;
  }

  .portfolio-container,
  .about-container {
    flex-direction: column;
    text-align: center;
  }

  .portfolio-text,
  .about-text {
    min-width: 100%;
  }

  .portfolio-description,
  .about-description {
    text-align: left;
  }

  #carouselPortfolio .carousel-item,
  #carouselAbout .carousel-item {
    height: 260px;
  }

  .tagline-content {
    flex-direction: column;
    gap: 10px;
    padding: 15px 25px;
  }

  /* Valores y diferenciadores */
  .values-section,
  .differentiators-section,
  .mission-vision-section {
    padding: 50px 20px;
  }

  .values-grid,
  .differentiators-grid,
  .mission-vision-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .differentiators-intro,
  .mv-intro {
    grid-column: 1;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 60px 0 30px;
  }
}

/* Móviles pequeños */
@media (max-width: 480px) {
  .portfolio-section,
  .about-section {
    padding: 40px 15px;
  }

  .portfolio-title {
    font-size: 3rem;
  }

  .portfolio-subtitle {
    font-size: 2rem;
  }

  #carouselPortfolio .carousel-item,
  #carouselAbout .carousel-item {
    height: 200px;
  }

  .tagline-content {
    font-size: 1rem;
    padding: 12px 20px;
  }

  .value-image {
    height: 150px;
  }

  .mv-card {
    padding: 30px 20px;
  }

  .back-to-top {
    width: 45px;
    height: 45px;
    bottom: 20px;
    right: 20px;
    font-size: 18px;
  }
}

/* Mejoras de accesibilidad */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}