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

html {
  font-size: 14px;
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  margin: 0;
  line-height: 1.6;
  color: #333;
  overflow-x: hidden;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #667eea;
}

/* Navbar personalizada */
.navbar {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1) !important;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1) !important;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

.navbar-brand {
  font-weight: 800 !important;
  font-size: 1.5rem !important;
  background: linear-gradient(45deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-link {
  font-weight: 500 !important;
  transition: all 0.3s ease !important;
  position: relative;
}

.nav-link:hover {
  color: #667eea !important;
  transform: translateY(-2px);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(45deg, #667eea, #764ba2);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 80%;
}



/* Utilidades generales */
.text-gradient {
  background: linear-gradient(45deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.shadow-custom {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Animaciones suaves */
.smooth-transition {
  transition: all 0.3s ease;
}

/* Espaciado para el navbar fijo */
body {
  padding-top: 76px;
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(45deg, #667eea, #764ba2);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(45deg, #5a6fd8, #6a4190);
}

/* Responsive improvements */
@media (max-width: 768px) {
  .navbar {
    padding: 0.5rem 1rem;
  }
  
  .navbar-brand {
    font-size: 1.3rem !important;
  }
  
  .nav-link {
    padding: 0.5rem 1rem !important;
    font-size: 0.9rem !important;
  }
  
  body {
    padding-top: 70px;
  }
}

@media (max-width: 480px) {
  .navbar-brand {
    font-size: 1.2rem !important;
  }
  
  .nav-link {
    font-size: 0.85rem !important;
  }
  
  body {
    padding-top: 65px;
  }
}