body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  color: #000;
  background-color: #C4D7E2;
}

/* ----- Header ----- */
header {
  display: flex;
  justify-content: flex-end;   
  align-items: center;
  padding: 1em 3em;           
  background: transparent;
}

header nav {
  display: flex;
  gap: 25px;  
  align-items: center;
  flex-wrap: wrap;
}

header nav a {
  text-decoration: none;
  color: #000;
  font-weight: bold;
  padding: 6px 12px;
  transition: color 0.3s;
}

header nav a:hover {
  color: #007BFF;
}

/* Botón destacado */
.btn-register {
  background: #007BFF;
  color: #fff !important;
  border: 1px solid #007BFF;
  border-radius: 5px;
  padding: 8px 16px;
  transition: background 0.3s;
}

.btn-register:hover {
  background: #0056b3;
}

/* ----- Hero ----- */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2em;
  padding: 2em;
  flex-wrap: wrap;
  text-align: center;
}
/* 🔵 Hacer el logo redondo en el HERO */
.hero-logo img {
    width: 150px;        /* Tamaño */
    height: 150px;       /* Para que sea circular */
    object-fit: cover;   /* Ajusta sin deformar */
    border-radius: 50%;  /* Redondearlo */
    background: transparent !important; 
    border: none !important;
    box-shadow: none !important; /* Sin sombra */
}

.hero-text h1 {
  font-size: 2.2em;
  margin: 0 0 0.5em 0;
}
.hero-text p {
  font-size: 1.1em;
}

/* ----- ¿Quiénes somos? ----- */
.about-us {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  gap: 40px;
  padding: 2em 5em;
}

.about-us-content {
  flex: 1;
  max-width: 600px;
  text-align: justify;
  line-height: 1.7;
  font-size: 1.05em;
}

.about-us-content h2 {
  text-align: left;
  color: #003366;
  font-size: 1.8em;
  margin-bottom: 0.5em;
  position: relative;
}

.about-us-content h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: #007BFF;
  border-radius: 3px;
  margin-top: 5px;
}

.about-us-image img {
  max-width: 350px;
  width: 100%;
  border-radius: 8px;
  display: block;
  margin: auto;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

/* ----- Carreras ----- */
.courses {
  text-align: center;
  margin: 40px 0;
}
.course-bar {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.course-item {
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  width: 250px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.3s ease;
}
.course-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
  cursor: pointer;
  background: linear-gradient(180deg, #ffffff, #f4f9ff);
}
.course-item h3 {
  margin: 0 0 10px 0;
  font-size: 1.2em;
  color: #007BFF;
}
.course-item p {
  margin: 0;
  font-size: 0.95em;
  color: #333;
}

/* ----- Notas flotantes ----- */
.notita {
  display: none;
  position: absolute;
  padding: 15px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  z-index: 1000;
  min-width: 250px;
}
.notita h3 {
  margin-top: 0;
  color: #003366;
  text-align: center;
}
.notita .cerrar-btn {
  position: absolute;
  top: 5px;
  right: 10px;
  font-size: 18px;
  cursor: pointer;
}

/* ----- Redes dentro de la nota de contacto ----- */
.redes-contacto {
  margin-top: 10px;
  text-align: center;
}
.redes-contacto a {
  margin: 0 6px;
  color: #007BFF;
  font-size: 1.3em;
  transition: color 0.3s;
}
.redes-contacto a:hover {
  color: #0056b3;
}

/* ----- Footer ----- */
footer {
  background-color: #003366;
  color: #fff;
  text-align: center;
  padding: 25px 10px;
  font-size: 0.95em;
}
footer p {
  margin: 5px 0;
}

/* ----- Footer con íconos en línea ----- */
.social-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 25px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.social-footer a {
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1em;
  transition: color 0.3s ease;
}
.social-footer i {
  font-size: 1.3em;
}
.social-footer a:hover i.fa-facebook-f { color: #1877F2; }
.social-footer a:hover i.fa-whatsapp { color: #25D366; }

/* ----- Modal (tarjetas emergentes) con blur y animación ----- */
@keyframes aparecerModal {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(6px);
  justify-content: center;
  align-items: center;
  z-index: 9999;
  animation: aparecerModal 0.3s ease forwards;
}

.modal-content {
  background: #fff;
  padding: 25px 30px;
  border-radius: 12px;
  max-width: 420px;
  width: 90%;
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
  text-align: left;
  animation: aparecerModal 0.3s ease;
  position: relative;
}

.modal-content h3 {
  color: #003366;
  text-align: center;
  margin-top: 0;
  margin-bottom: 15px;
}

.modal-content ul {
  margin: 10px 0 0 20px;
  padding: 0;
  line-height: 1.6;
}

.modal-content li {
  list-style: "✔ ";
  color: #333;
}

.modal .cerrar-btn {
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 22px;
  color: #007BFF;
  cursor: pointer;
}
.modal .cerrar-btn:hover {
  color: #0056b3;
}

/* ----- Responsividad general ----- */
@media (max-width: 992px) {
  .hero {
    flex-direction: column;
    text-align: center;
  }
  header {
    justify-content: center;
    padding: 1em;
  }
  .about-us {
    flex-direction: column;
    padding: 2em;
  }
  .about-us-content {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .hero-text h1 {
    font-size: 1.8em;
  }
  .about-us-content h2 {
    font-size: 1.5em;
  }
  .course-item {
    width: 85%;
  }
}

@media (max-width: 480px) {
  header nav {
    flex-direction: column;
    gap: 10px;
  }
  .btn-register {
    padding: 6px 12px;
    font-size: 0.9em;
  }
  .hero-text h1 {
    font-size: 1.6em;
  }
  .about-us-content {
    font-size: 0.95em;
  }
  footer {
    font-size: 0.85em;
  }
  .social-footer {
    flex-direction: column;
    gap: 10px;
  }
}
.notita {
  display: none;
  position: absolute;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.25);
  padding: 18px 22px;
  min-width: 280px;
  max-width: 320px;
  z-index: 9999;
  animation: aparecer 0.25s ease;
}

.notita h3 {
  text-align: center;
  color: #003366;
  margin-bottom: 10px;
}

.notita ul {
  margin-left: 20px;
  padding: 0;
  font-size: 0.95em;
  line-height: 1.6;
}

.notita ul li::marker {
  content: "✔ ";
  color: #007BFF;
}

.notita .cerrar-btn {
  position: absolute;
  top: 8px;
  right: 12px;
  background: none;
  border: none;
  font-size: 18px;
  color: #007BFF;
  cursor: pointer;
}

.notita .cerrar-btn:hover {
  color: #0056b3;
}

@keyframes aparecer {
  from {opacity: 0; transform: translateY(-10px);}
  to {opacity: 1; transform: translateY(0);}
}
/* ----- Tarjetas flotantes (Plan de estudios) ----- */
.notita {
  display: none;
  position: absolute;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.25);
  padding: 20px;
  min-width: 280px;
  max-width: 340px;
  z-index: 9999;
  animation: aparecer 0.25s ease;
  border-left: 5px solid #007BFF;
}

.notita h3 {
  text-align: center;
  color: #003366;
  margin-bottom: 10px;
  font-size: 1.1em;
}

.notita ul {
  margin-left: 20px;
  padding: 0;
  font-size: 0.95em;
  line-height: 1.6;
}

.notita ul li::marker {
  content: "✔ ";
  color: #007BFF;
}

.notita .cerrar-btn {
  position: absolute;
  top: 8px;
  right: 12px;
  background: none;
  border: none;
  font-size: 18px;
  color: #007BFF;
  cursor: pointer;
  transition: color 0.2s;
}

.notita .cerrar-btn:hover {
  color: #0056b3;
}

@keyframes aparecer {
  from {opacity: 0; transform: translateY(-8px);}
  to {opacity: 1; transform: translateY(0);}
}
/* ----- Botones dentro de las tarjetas de curso ----- */
.btn-plan {
  background-color: #007BFF;
  border: none;
  color: white;
  padding: 8px 14px;
  margin-top: 10px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.3s, transform 0.2s;
}

.btn-plan:hover {
  background-color: #0056b3;
  transform: scale(1.05);
}

/* ----- Tarjetas emergentes (notitas de plan de estudios) ----- */
.notita {
  display: none;
  position: absolute;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.25);
  padding: 20px;
  min-width: 280px;
  max-width: 340px;
  z-index: 9999;
  animation: aparecer 0.25s ease;
  border-left: 5px solid #007BFF;
}

.notita h3 {
  text-align: center;
  color: #003366;
  margin-bottom: 10px;
  font-size: 1.1em;
}

.notita ul {
  margin-left: 20px;
  padding: 0;
  font-size: 0.95em;
  line-height: 1.6;
}

.notita ul li::marker {
  content: "✔ ";
  color: #007BFF;
}

.notita .cerrar-btn {
  position: absolute;
  top: 8px;
  right: 12px;
  background: none;
  border: none;
  font-size: 18px;
  color: #007BFF;
  cursor: pointer;
  transition: color 0.2s;
}

.notita .cerrar-btn:hover {
  color: #0056b3;
}

@keyframes aparecer {
  from {opacity: 0; transform: translateY(-8px);}
  to {opacity: 1; transform: translateY(0);}
}

/* Equilibrio entre secciones */
.about-us {
  margin-bottom: 30px;
}

.courses {
  text-align: center;
  margin-top: 0;
  padding-top: 10px;
  padding-bottom: 40px;
}

/* Estilo institucional del título */
.courses h2 {
  color: #003366;
  border-bottom: 3px solid #007BFF;
  display: inline-block;
  padding-bottom: 6px;
  margin-bottom: 25px;
  font-size: 1.8em;
  font-weight: bold;
  letter-spacing: 0.5px;
}

/* Contenedor de tarjetas centrado */
.course-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 25px;
  max-width: 850px;
  margin: 0 auto;
}

/* Tarjetas con animación sutil */
.course-item {
  background: #fff;
  border-radius: 12px;
  width: 250px;
  padding: 20px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.course-item:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.course-item h3 {
  color: #0056b3;
  font-weight: bold;
  font-size: 1.25em;
  margin-bottom: 8px;
}

.course-item p {
  font-size: 0.95em;
  color: #333;
  margin-bottom: 10px;
}

/* Botón “Ver plan de estudios” con glow */
.btn-plan {
  background-color: #007BFF;
  border: none;
  color: white;
  padding: 8px 14px;
  margin-top: 10px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
  box-shadow: 0 0 8px rgba(0,123,255,0.4);
  transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
}

.btn-plan:hover {
  background-color: #0056b3;
  box-shadow: 0 0 15px rgba(0,123,255,0.6);
  transform: scale(1.05);
}

/* ===== Responsividad general ===== */

/* 🔹 Tablets (pantallas medianas) */
@media (max-width: 992px) {
  header {
    justify-content: center;
    padding: 1em;
  }

  .hero {
    flex-direction: column;
    text-align: center;
  }

  .about-us {
    flex-direction: column;
    padding: 2em;
    align-items: center;
  }

  .about-us-content {
    max-width: 90%;
  }

  .course-bar {
    max-width: 600px;
    gap: 20px;
  }

  .course-item {
    width: 220px;
  }
}

/* 🔹 Celulares grandes */
@media (max-width: 768px) {
  .hero-text h1 {
    font-size: 1.8em;
  }

  .about-us-content h2,
  .courses h2 {
    font-size: 1.6em;
  }

  .about-us-content {
    font-size: 1em;
    padding: 0 1em;
  }

  .course-item {
    width: 80%;
    margin: 10px auto;
  }

  .btn-plan {
    padding: 10px 16px;
    font-size: 0.95em;
  }
}

/* 🔹 Celulares pequeños */
@media (max-width: 480px) {
  header nav {
    flex-direction: column;
    gap: 10px;
  }

  .btn-register {
    padding: 6px 12px;
    font-size: 0.9em;
  }

  .hero-text h1 {
    font-size: 1.6em;
  }

  .about-us-content {
    font-size: 0.95em;
  }

  .course-bar {
    flex-direction: column;
    align-items: center;
    gap: 15px;
  }

  .course-item {
    width: 90%;
  }

  footer {
    font-size: 0.85em;
    padding: 20px 5px;
  }

  .social-footer {
    flex-direction: column;
    gap: 10px;
  }
}
/* Logo redondo  */
.logo-redondo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center;
    background: transparent;
    border: none;
    box-shadow: 0 0 0 transparent;
}