/* ====================
   MODO CLARO (por defecto)
==================== */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f8f9fa;
  color: #212529;
  transition: background-color 0.3s, color 0.3s;
}

.navbar {
  background-color: #ffffff;
  padding: 1rem 2rem;
  font-size: 1.2rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
  font-size: 2rem;
  animation: heartbeat 1.5s infinite;
  color: #007bff;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

.navbar-nav .nav-link {
  color: #333 !important;
  font-size: 1.3rem;
  margin-right: 20px;
  transition: 0.3s ease-in-out;
  padding: 0.5rem 0;
}

.navbar-nav .nav-link:hover {
  color: #007bff !important;
  transform: scale(1.1);
}

.navbar-toggler {
  border-color: #007bff;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3Csvg ... %3C/svg%3E");
}

footer {
  background-color: #ffffff;
  color: #000000;
  padding: 2rem 1rem;
  text-align: center;
  font-size: 1.2rem;
  margin-top: auto;
  box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.1);
}
footer a {
  color: #ffc107;
  text-decoration: none;
  margin: 0 0.5rem;
  position: relative;
  transition: color 0.3s ease;
}

footer a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 2px;
  background: #ffc107;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

footer a:hover {
  color: #006eff;
}

footer a:hover::after {
  transform: scaleX(1);
}

.card {
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  transition: transform 0.3s ease-in-out;
  border-radius: 10px;
  margin-bottom: 1.5rem;
}
.card:hover {
  transform: scale(1.05);
}

.btn {
  border-radius: 10px;
  padding: 0.6rem 1.2rem;
  transition: all 0.3s ease;
}
.btn:hover {
  transform: scale(1.1);
}

.form-control {
  border-radius: 10px;
  padding: 0.75rem;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
}

.container, .container-fluid, .contenedor {
  border-radius: 15px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  background-color: #fff;
  padding: 2rem;
  margin-top: 1.5rem;
}

.titulo-seccion {
  animation: heartbeat 3s infinite;
  text-align: center;
  padding: 20px;
}

/* ====================
   MODO OSCURO
==================== */
body.dark-mode {
  background-color: #121212 !important;
  color: #e0e0e0 !important;
}

body.dark-mode .navbar {
  background-color: #000000 !important;
}

body.dark-mode .navbar-nav .nav-link {
  color: #e0e0e0 !important;
}

body.dark-mode .navbar-nav .nav-link:hover {
  color: #ffc107 !important;
}

body.dark-mode footer {
  background-color: #000;
  color: #ccc;
}

body.dark-mode   {
  background-color: #000;
  color: #ccc;
}

body.dark-mode .card {
  background-color: #1e1e1e;
  color: #fff;
}

body.dark-mode .container,
body.dark-mode .container-fluid,
body.dark-mode .contenedor {
  background-color: #000000;
  color: #e0e0e0;
}

/* Inputs y botones en modo oscuro */
body.dark-mode .form-control {
  background-color: #333;
  color: #fff;
  border-color: #555;
}

body.dark-mode .btn {
  background-color: #007bff;
  color: #fff;
}
body.dark-mode .btn:hover {
  background-color: #0056b3;
}

/* ====================
   RESPONSIVIDAD
==================== */

@media (max-width: 768px) {
  .navbar {
    padding: 0.5rem 1rem;
  }

  .navbar-nav .nav-link {
    margin-right: 0;
    font-size: 1rem;
  }

  .card {
    margin-bottom: 1rem;
  }

  .container,
  .contenedor {
    padding: 1rem;
  }

  footer {
    font-size: 0.8rem;
    padding: 1.5rem 0.5rem;
  }
}

@media (max-width: 576px) {
  .btn {
    padding: 0.4rem 1rem;
    font-size: 0.9rem;
  }

  .form-control {
    font-size: 0.9rem;
  }

  .navbar-brand {
    font-size: 1.5rem;
  }
}
/* SECCION CV */
.cv-section {
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.dark-mode .cv-section {
  background: linear-gradient(135deg, #1a1a1a, #111);
}

.cv-section .btn {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cv-section .btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}