/* Reset y Variables CSS */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Colores institucionales basados en el logo */
  --blue-primary: #1e3a8a; /* Azul principal del escudo */
  --blue-secondary: #1e40af; /* Azul más claro */
  --green-primary: #059669; /* Verde académico de los libros */
  --green-secondary: #10b981; /* Verde más claro */
  --orange-primary: #d97706; /* Dorado institucional */
  --gold-accent: #f59e0b; /* Dorado brillante */

  /* Colores complementarios */
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --border-color: #e5e7eb;

  /* Efectos */
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --gradient-primary: linear-gradient(
    135deg,
    var(--blue-primary) 0%,
    var(--green-primary) 100%
  );
  --font-family: "Inter", sans-serif;
}

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--text-dark);
  scroll-behavior: smooth;
}

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header y Navegación */
.header {
  background: var(--bg-white);
  box-shadow: var(--shadow);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-logo img {
  height: 50px;
  width: auto;
}

.nav-logo h1 {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.5rem;
  font-weight: 700;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--blue-primary);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 1px;
}

.campus-link {
  background: var(--gradient-primary) !important;
  color: white !important;
  padding: 10px 20px;
  border-radius: 8px;
  transition: transform 0.3s ease;
}

.campus-link:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text-dark);
  margin: 3px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 50%, #f1f5f9 100%);
  padding: 140px 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(30, 58, 138, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 138, 0.03) 1px, transparent 1px),
    linear-gradient(rgba(5, 150, 105, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(5, 150, 105, 0.02) 1px, transparent 1px);
  background-size: 50px 50px, 50px 50px, 25px 25px, 25px 25px;
  background-position: 0 0, 0 0, 25px 25px, 25px 25px;
  animation: gridMove 20s linear infinite;
  z-index: 1;
}

.hero::after {
  content: '';
  position: absolute;
  top: 20%;
  right: 15%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(30, 58, 138, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulseGlow 4s ease-in-out infinite;
  z-index: 1;
}

@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 50px); }
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.1); }
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  line-height: 1.2;
  position: relative;
  animation: titleFadeIn 1s ease-out;
}

.hero-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
  animation: lineExpand 1s ease-out 0.5s both;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  animation: subtitleFadeIn 1s ease-out 0.3s both;
  line-height: 1.5;
}

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

@keyframes subtitleFadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes lineExpand {
  from { width: 0; }
  to { width: 60px; }
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: buttonsFadeIn 1s ease-out 0.6s both;
}

@keyframes buttonsFadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s ease;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(30, 58, 138, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--blue-primary);
  border: 2px solid var(--blue-primary);
  position: relative;
  overflow: hidden;
}

.btn-secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: var(--blue-primary);
  transition: width 0.3s ease;
  z-index: -1;
}

.btn-secondary:hover::before {
  width: 100%;
}

.btn-secondary:hover {
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(30, 58, 138, 0.3);
}

.hero-placeholder {
  text-align: center;
  padding: 2rem;
  position: relative;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.hero-placeholder::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-primary);
  border-radius: 22px;
  z-index: -1;
  opacity: 0.3;
  filter: blur(8px);
}

.hero-placeholder img {
  width: 100%;
  height: auto;
  max-width: 450px;
  border-radius: 16px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-placeholder:hover img {
  transform: scale(1.05);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

/* Secciones */
.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Evento Destacado Section */
.evento-destacado {
  padding: 60px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.evento-banner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: stretch;
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  min-height: 600px;
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s ease, transform 0.8s ease, box-shadow 0.3s ease;
}

.evento-banner.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.evento-banner:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  transform: translateY(-5px);
}

.evento-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease 0.2s, transform 0.6s ease 0.2s;
}

.evento-banner.animate-in .evento-content {
  opacity: 1;
  transform: translateX(0);
}

.evento-badge {
  display: inline-block;
  margin-bottom: 1rem;
}

.evento-badge span {
  background: var(--green-primary);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.evento-banner h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--blue-primary);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.evento-lema {
  font-style: italic;
  color: var(--green-primary);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  font-weight: 500;
}

.evento-descripcion {
  color: var(--text-light);
  margin-bottom: 1rem;
  line-height: 1.5;
  font-size: 0.9rem;
}

.evento-details {
  margin: 1rem 0;
}

.detail-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 0.4rem;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.detail-item i {
  font-size: 0.9rem;
  margin-top: 2px;
}

.detail-item span {
  color: var(--text-dark);
  line-height: 1.3;
}

.evento-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 0.4s, transform 0.6s ease 0.4s;
}

.evento-banner.animate-in .evento-actions {
  opacity: 1;
  transform: translateY(0);
}

.btn-evento {
  background: linear-gradient(135deg, var(--orange-primary) 0%, #ea580c 100%);
  color: white;
  padding: 8px 16px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 0.85rem;
}

.btn-evento:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 119, 6, 0.3);
}

.btn-info {
  background: transparent;
  color: var(--blue-primary);
  border: 2px solid var(--blue-primary);
  padding: 6px 14px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  font-size: 0.85rem;
}

.btn-info:hover {
  background: var(--blue-primary);
  color: white;
}

.evento-image {
  height: 100%;
  min-height: 600px;
  overflow: hidden;
  position: relative;
  border-radius: 0 16px 16px 0;
}

.evento-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.3s ease;
}

.evento-banner:hover .evento-image img {
  transform: scale(1.05);
}

/* Carreras Section */
.carreras {
  padding: 80px 0;
  background: var(--bg-white);
}

.carreras-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.carrera-card {
  background: var(--bg-white);
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid rgba(226, 232, 240, 0.8);
  position: relative;
}

.carrera-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.carrera-card:hover::before {
  transform: scaleX(1);
}

.carrera-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  border-color: rgba(30, 58, 138, 0.2);
}

.card-header {
  background: linear-gradient(135deg, var(--blue-primary) 0%, var(--green-primary) 100%);
  color: white;
  padding: 2rem 1.5rem 1.5rem;
  position: relative;
  overflow: hidden;
}

.card-header::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: scale(0);
  transition: transform 0.5s ease;
}

.carrera-card:hover .card-header::before {
  transform: scale(2);
}

.card-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.card-content {
  padding: 2rem 1.5rem;
  background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
}

.card-content p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.6;
  font-size: 0.95rem;
}

.card-content ul {
  list-style: none;
  margin: 0;
}

.card-content li {
  padding: 0.75rem 0;
  color: var(--text-dark);
  position: relative;
  padding-left: 2rem;
  font-size: 0.9rem;
  line-height: 1.5;
  transition: color 0.3s ease;
}

.card-content li:before {
  content: "✓";
  color: var(--green-primary);
  font-weight: bold;
  position: absolute;
  left: 0;
  top: 0.75rem;
  background: rgba(5, 150, 105, 0.1);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

.carrera-card:hover .card-content li {
  color: var(--blue-primary);
}

/* Sobre Nosotros Section */
.sobre-nosotros {
  padding: 80px 0;
  background: var(--bg-light);
}

.sobre-nosotros-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.features {
  margin-top: 2rem;
}

.feature {
  margin-bottom: 1.5rem;
}

.feature h4 {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.feature p {
  color: var(--text-light);
}

.image-placeholder {
  text-align: center;
  background: var(--bg-white);
  border-radius: 12px;
  padding: 2rem;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.image-placeholder:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
}

.image-placeholder img {
  width: 100%;
  height: auto;
  max-width: 450px;
  border-radius: 8px;
  transition: transform 0.3s ease;
}

.image-placeholder:hover img {
  transform: scale(1.03);
}

/* Contacto Section */
.contacto {
  padding: 80px 0;
  background: var(--bg-white);
}

.contacto-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.info-item {
  margin-bottom: 1.5rem;
}

.info-item h4 {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.info-item p,
.info-item a {
  color: var(--text-light);
  text-decoration: none;
}

.info-item a:hover {
  color: var(--blue-primary);
}

.contacto-form {
  background: var(--bg-light);
  padding: 2rem;
  border-radius: 12px;
  border-top: 4px solid;
  border-image: var(--gradient-primary) 1;
}

.contacto-form h3 {
  margin-bottom: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contacto-form input,
.contacto-form select,
.contacto-form textarea {
  width: 100%;
  padding: 12px;
  margin-bottom: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-family: var(--font-family);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.contacto-form input:focus,
.contacto-form select:focus,
.contacto-form textarea:focus {
  outline: none;
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

/* Footer */
.footer {
  background: var(--text-dark);
  color: white;
  padding: 40px 0 20px;
  position: relative;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
  margin-bottom: 1rem;
  color: white;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 1rem;
  text-align: center;
  color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 80px;
    flex-direction: column;
    background-color: var(--bg-white);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow);
    padding: 2rem 0;
  }

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

  .hero-container {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

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

  .evento-banner {
    grid-template-columns: 1fr;
    max-height: none;
    min-height: auto;
  }

  .evento-image {
    height: 350px;
    order: -1;
    border-radius: 16px 16px 0 0;
  }

  .evento-content {
    transform: translateY(-30px);
  }

  .evento-banner.animate-in .evento-content {
    transform: translateY(0);
  }

  .sobre-nosotros-content,
  .contacto-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .hero-buttons {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .container {
    padding: 0 15px;
  }

  .nav-container {
    padding: 0 15px;
  }

  .evento-content {
    padding: 1.5rem;
  }

  .evento-banner h2 {
    font-size: 1.4rem;
  }
}