/* CSS personalizado para BUSF Perú */
:root {
  --primary-color: #30368c;
  --secondary-color: #ffc107;
  --dark-color: #090c1f;
  --light-color: #f8f9fa;
  --gray-color: #565d63;
  --dark-bg: #121212;
  --dark-card-bg: #1e1e1e;
  --dark-text: #eee;
  --section-light: #e9e6e6;
  --section-light-alt: #c6c4c4;
  --section-dark: #0a0a0a;
  --section-dark-alt: #1e1e1e;
}

body {
  font-family: "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  background-color: var(--light-color);
  color: #333;
  transition: all 0.3s ease;
}

/* Navbar */
.navbar {
  background-color: var(--primary-color) !important;
  padding: 1rem 0;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  padding: 0.5rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-link {
  color: #fff !important;
  font-weight: 500;
  margin: 0 5px;
  transition: all 0.3s ease;
}

.nav-link:hover {
  color: var(--secondary-color) !important;
}

/* Hero Section */
#hero {
  position: relative;
  color: #fff;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
}

#hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.55);
  z-index: 1;
}

#hero h1,
#hero p,
#hero a,
#hero img {
  position: relative;
  z-index: 2;
}

.scroll-down {
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-20px);
  }
  60% {
    transform: translateY(-10px);
  }
}

/* Sections with distinct backgrounds */
section {
  padding: 80px 0;
}

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

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

.section-dark {
  background-color: var(--section-dark);
  color: #fff;
}

.section-dark-alt {
  background-color: var(--section-dark-alt);
  color: #fff;
}

/* Dark mode sections */
body.dark-mode .section-light {
  background-color: var(--section-dark);
  color: var(--dark-text);
}

body.dark-mode .section-light-alt {
  background-color: var(--section-dark-alt);
  color: var(--dark-text);
}

body.dark-mode .section-dark {
  background-color: var(--section-dark-alt);
  color: var(--dark-text);
}

body.dark-mode .section-dark-alt {
  background-color: var(--section-dark);
  color: var(--dark-text);
}

/* Titles */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.text-primary {
  color: var(--primary-color) !important;
}

/* Cards */
.card {
  border: none;
  border-radius: 12px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
  background-color: #dfdfdf;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.15) !important;
}

.card-img-top {
  height: 250px;
  object-fit: cover;
}

.icon-circle {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background-color: var(--primary-color);
  color: white;
  margin: 0 auto 1rem;
}

/* Buttons */
.btn {
  border-radius: 50px;
  font-weight: 600;
  padding: 10px 25px;
  transition: all 0.3s ease;
}

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

.btn-primary:hover {
  background-color: #252a6d;
  border-color: #252a6d;
  transform: translateY(-2px);
}

.btn-warning {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
  color: #000;
}

.btn-warning:hover {
  background-color: #e0a800;
  border-color: #e0a800;
  transform: translateY(-2px);
}

.btn-outline-light:hover {
  background-color: #fff;
  color: var(--primary-color);
}

/* Footer */
footer {
  background: var(--primary-color);
  color: #fff;
}

footer a {
  color: #adb5bd;
  text-decoration: none;
  transition: all 0.3s ease;
}

footer a:hover {
  color: var(--secondary-color);
}

/* Dark Mode */
body.dark-mode {
  background: var(--dark-bg);
  color: var(--dark-text);
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode h4,
body.dark-mode h5 {
  color: var(--secondary-color);
}

body.dark-mode .card {
  background: var(--dark-card-bg);
  color: var(--dark-text);
}

body.dark-mode .bg-light {
  background-color: #1a1a1a !important;
}

body.dark-mode footer {
  background: #1c1c3c;
}

body.dark-mode .navbar {
  background-color: #1c1c3c !important;
}

body.dark-mode .form-control {
  background-color: #2d2d2d;
  border-color: #444;
  color: #fff;
}

body.dark-mode .form-control:focus {
  background-color: #2d2d2d;
  border-color: var(--primary-color);
  color: #fff;
}

body.dark-mode .card {
  background-color: var(--dark-card-bg);
  color: var(--dark-text);
}

body.dark-mode .bg-primary {
  background-color: #252a6d !important;
}

body.dark-mode section {
  background-color: var(--dark-bg);
}

body.dark-mode .btn-primary {
  background-color: #252a6d;
  border-color: #252a6d;
}

/* Carousel */
.carousel-control-prev,
.carousel-control-next {
  width: 5%;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
  background-color: rgba(48, 54, 140, 0.8) !important;
  border-radius: 50%;
  padding: 10px;
  width: 40px;
  height: 40px;
  background-size: 60% 60%;
  background-position: center;
}

/* Responsive */
@media (max-width: 768px) {
  #hero {
    height: 80vh !important;
  }
  
  .display-3 {
    font-size: 2.5rem;
  }
  
  section {
    padding: 60px 0;
  }
  
  .navbar-nav {
    text-align: center;
    padding: 15px 0;
  }
  
  .navbar-nav .nav-item {
    margin: 5px 0;
  }
  
  .card-img-top {
    height: 200px;
  }
}

/* Animations */
.fadeInUp {
  animation: fadeInUp 0.6s ease forwards;
}

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

/* Form Styles */
.form-control {
  padding: 12px 15px;
  border-radius: 8px;
  border: 1px solid #ced4da;
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.25rem rgba(48, 54, 140, 0.25);
}