/* ===== VARIABLES Y CONFIGURACIÓN GLOBAL ===== */
:root {
  /* Fuentes */
  --default-font: "Inter", system-ui, -apple-system, sans-serif;
  --heading-font: "Open Sans", sans-serif;
  --nav-font: "Inter", serif;
  --montserrat-font: "Open Sans", sans-serif;

  /* Colores principales */
  --background-color: #dddddd;
  --color: #faf9f7da;
  --default-color: #555555;
  --heading-color: #222222;
  --accent-color: #dcaa00;
  --surface-color: #ffffff;
  --contrast-color: #ffffff;
  --institutional-blue: #142C76;
  --institutional-gold: #EAB300;

  /* Colores de navegación */
  --nav-color: #142c76;
  --nav-hover-color: #dcaa00;
  --nav-mobile-background-color: #ffffff;
  --nav-dropdown-background-color: #ffffff;
  --nav-dropdown-color: #142c76;
  --nav-dropdown-hover-color: #dcaa00;

  /* Smooth scroll */
  scroll-behavior: smooth;
}

/* Presets de color */
.dark-background {
  --background-color: #060606;
  --default-color: #ffffff;
  --heading-color: #ffffff;
  --surface-color: #252525;
  --contrast-color: #ffffff;
  background-color: var(--background-color);
  color: var(--default-color);
}

/* ===== ESTILOS GENERALES ===== */
body {
  color: var(--default-color);
  background-color: var(--background-color);
  font-family: var(--default-font);
  margin: 0;
  padding: 0;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: 0.3s;
}

a:hover {
  color: color-mix(in srgb, var(--accent-color), transparent 25%);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--background-color);
  font-family: var(--heading-font);
  margin-top: 0;
}

section,
.section {
  scroll-margin-top: 85px;
  overflow: clip;
}

/* ===== HEADER Y NAVEGACIÓN ===== */
.header {
  color: var(--default-color);
  background-color: var(--color);
  padding: 15px 0;
  transition: all 0.5s;
  z-index: 997;
  position: relative;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 3px solid var(--accent-color);
}

.header .logo img {
  max-height: 95px;
  margin-right: 35px;
  transition: all 0.3s ease;
}

.scrolled .header {
  box-shadow: 0px 0 18px rgba(0, 0, 0, 0.1);
  background-color: rgba(255, 255, 255, 0.95);
}

.scrolled .header .logo img {
  max-height: 90px;
}

/* Navegación Desktop */
@media (min-width: 1200px) {
  .navmenu {
    padding: 0;
  }

  .navmenu ul {
    margin: 0;
    padding: 0;
    display: flex;
    list-style: none;
    align-items: center;
  }

  .navmenu a {
    color: var(--nav-color);
    padding: 18px 15px;
    font-size: 13px;
    font-family: var(--nav-font);
    font-weight: 500;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    justify-content: space-between;
    white-space: nowrap;
    transition: 0.3s;
  }

  .navmenu a i {
    font-size: 12px;
    line-height: 0;
    margin-left: 5px;
    transition: 0.3s;
  }

  .navmenu li:last-child a {
    padding-right: 0;
  }

  .navmenu li:hover>a,
  .navmenu .active {
    color: var(--nav-hover-color);
  }

  .navmenu .dropdown {
    position: relative;
  }

  .navmenu .dropdown ul {
    margin: 0;
    padding: 10px 0;
    background: var(--nav-dropdown-background-color);
    display: block;
    position: absolute;
    visibility: hidden;
    left: 14px;
    top: 130%;
    opacity: 0;
    transition: 0.3s;
    border-radius: 4px;
    z-index: 99;
    box-shadow: 0px 0px 30px rgba(0, 0, 0, 0.1);
  }

  .navmenu .dropdown ul li {
    min-width: 200px;
  }

  .navmenu .dropdown ul a {
    padding: 10px 20px;
    font-size: 15px;
    text-transform: none;
    color: var(--nav-dropdown-color);
  }

  .navmenu .dropdown ul a:hover {
    color: var(--nav-dropdown-hover-color);
  }

  .navmenu .dropdown:hover>ul {
    opacity: 1;
    top: 100%;
    visibility: visible;
  }

  .navmenu .dropdown .dropdown ul {
    top: 0;
    left: -90%;
    visibility: hidden;
  }

  .navmenu .dropdown .dropdown:hover>ul {
    opacity: 1;
    top: 0;
    left: -100%;
    visibility: visible;
  }
}

/* Navegación Mobile */
@media (max-width: 1199px) {
  section,
  .section {
    scroll-margin-top: 66px;
  }

  .mobile-nav-toggle {
    color: var(--nav-color);
    font-size: 28px;
    line-height: 0;
    margin-right: 10px;
    cursor: pointer;
    transition: color 0.3s;
  }

  .navmenu ul {
    display: none;
    position: absolute;
    inset: 60px 20px 20px 20px;
    padding: 10px 0;
    margin: 0;
    border-radius: 6px;
    background-color: var(--nav-mobile-background-color);
    overflow-y: auto;
    transition: 0.3s;
    z-index: 9998;
    box-shadow: 0px 0px 30px rgba(0, 0, 0, 0.1);
    list-style: none;
  }

  .navmenu a {
    color: var(--nav-dropdown-color);
    padding: 10px 20px;
    font-family: var(--nav-font);
    font-size: 17px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    white-space: nowrap;
    transition: 0.3s;
  }

  .navmenu a i {
    font-size: 12px;
    line-height: 0;
    margin-left: 5px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: 0.3s;
    background-color: color-mix(in srgb, var(--accent-color), transparent 90%);
  }

  .navmenu a:hover,
  .navmenu .active {
    color: var(--nav-dropdown-hover-color);
  }

  .navmenu .active i {
    background-color: var(--accent-color);
    color: var(--contrast-color);
    transform: rotate(180deg);
  }

  .navmenu .dropdown ul {
    position: static;
    display: none;
    z-index: 99;
    padding: 10px 0;
    margin: 10px 20px;
    background-color: var(--nav-dropdown-background-color);
    border: 1px solid color-mix(in srgb, var(--default-color), transparent 90%);
    box-shadow: none;
    transition: all 0.5s ease-in-out;
  }

  .navmenu .dropdown>.dropdown-active {
    display: block;
    background-color: rgba(33, 37, 41, 0.03);
  }

  .mobile-nav-active {
    overflow: hidden;
  }

  .mobile-nav-active .mobile-nav-toggle {
    color: #fff;
    position: absolute;
    font-size: 32px;
    top: 15px;
    right: 15px;
    margin-right: 0;
    z-index: 9999;
  }

  .mobile-nav-active .navmenu {
    position: fixed;
    overflow: hidden;
    inset: 0;
    background: rgba(33, 37, 41, 0.8);
    transition: 0.3s;
  }

  .mobile-nav-active .navmenu>ul {
    display: block;
  }
}
/* ===== ESTILOS PARA TARJETAS DE CARACTERÍSTICAS ===== */
.feature-card {
  border: none;
  border-radius: 10px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.feature-card .card-body {
  padding: 2rem;
}

.feature-card i {
  font-size: 3rem;
}

/* ===== ESTILOS PARA BOTÓN SCROLL TOP ===== */
.scroll-top {
  position: fixed;
  visibility: hidden;
  opacity: 0;
  right: 15px;
  bottom: 15px;
  z-index: 99999;
  background-color: var(--accent-color);
  width: 40px;
  height: 40px;
  border-radius: 4px;
  transition: all 0.4s;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.scroll-top i {
  font-size: 24px;
  color: var(--contrast-color);
  line-height: 0;
}

.scroll-top:hover {
  background-color: color-mix(in srgb, var(--accent-color), transparent 20%);
  transform: translateY(-3px);
}

.scroll-top.active {
  visibility: visible;
  opacity: 1;
}

/* ===== PRELOADER ===== */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 999999;
  overflow: hidden;
  background: var(--background-color);
  transition: all 0.6s ease-out;
}

#preloader:before {
  content: "";
  position: fixed;
  top: calc(50% - 30px);
  left: calc(50% - 30px);
  border: 6px solid;
  border-color: var(--accent-color) transparent var(--accent-color) transparent;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  animation: animate-preloader 1.5s linear infinite;
}

@keyframes animate-preloader {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* ===== MEJORAS RESPONSIVAS ===== */
@media (max-width: 768px) {
  .feature-card {
    margin-bottom: 1.5rem;
  }
  
  .display-4 {
    font-size: 2.5rem;
  }
  
  .lead {
    font-size: 1.1rem;
  }
}

/* ===== CORRECCIÓN PARA HEADER STICKY ===== */
.sticky-top {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 1020;
}

/* ===== AJUSTES DE COLOR PARA TEXTO ===== */
.text-primary {
  color: var(--institutional-blue) !important;
}

.bg-light {
  background-color: #f8f9fa !important;
}
/* ===== FOOTER ===== */
footer.dark-background {
  background-color: var(--institutional-blue);
  padding: 40px 0;
}

footer.dark-background p {
  color: #fff;
  font-weight: 300;
  font-family: var(--montserrat-font);
  margin-bottom: 10px;
}

footer.dark-background p a {
  color: var(--institutional-gold);
  text-decoration: none;
  transition: color 0.3s;
}

footer.dark-background p a:hover {
  color: #ffcc00;
}

footer.dark-background .social-icons {
  margin: 15px 0;
}

footer.dark-background .social-icons a {
  display: inline-block;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  line-height: 40px;
  margin: 0 8px;
  transition: all 0.3s ease;
  color: white;
  text-decoration: none;
}

footer.dark-background .social-icons a:hover {
  background: var(--institutional-gold);
  transform: translateY(-3px);
}
.modal-header {
  background: linear-gradient(135deg, var(--institutional-blue), #2a4cbb);
  color: white;
  padding: 25px;
}

.modal-title {
  font-weight: 700;
}

.modal-body {
  padding: 30px;
}

/* ===== COMPONENTES GENERALES ===== */
/* Scroll Top Button */
.scroll-top {
  position: fixed;
  visibility: hidden;
  opacity: 0;
  right: 15px;
  bottom: 15px;
  z-index: 99999;
  background-color: var(--accent-color);
  width: 40px;
  height: 40px;
  border-radius: 4px;
  transition: all 0.4s;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.scroll-top i {
  font-size: 24px;
  color: var(--contrast-color);
  line-height: 0;
}

.scroll-top:hover {
  background-color: color-mix(in srgb, var(--accent-color), transparent 20%);
  transform: translateY(-3px);
}

.scroll-top.active {
  visibility: visible;
  opacity: 1;
}

/* Preloader */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 999999;
  overflow: hidden;
  background: var(--background-color);
  transition: all 0.6s ease-out;
}

#preloader:before {
  content: "";
  position: fixed;
  top: calc(50% - 30px);
  left: calc(50% - 30px);
  border: 6px solid;
  border-color: var(--accent-color) transparent var(--accent-color) transparent;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  animation: animate-preloader 1.5s linear infinite;
}

/* ===== ANIMACIONES ===== */
@keyframes animate-preloader {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* ===== RESPONSIVE GENERAL ===== */
/* Móviles */
@media (max-width: 767px) {
  footer.dark-background .container {
    text-align: center;
  }

  footer.dark-background .col-md-4 {
    margin-bottom: 25px;
  }

  footer.dark-background .social-icons a {
    width: 36px;
    height: 36px;
    line-height: 36px;
    margin: 0 5px;
  }
}