/* Variables y configuración base */
:root {
  --primary: #2563eb;
  --secondary: #3b82f6;
  --text: #1e293b;
  --background: #ffffff;
  --light-bg: #f9fafb;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --radius: 8px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}
[data-theme="dark"] {
  --primary: #60a5fa;
  --secondary: #3b82f6;
  --text: #f8fafc;
  --background: #0f172a;
  --light-bg: #1e293b;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
}
/* Reset global */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, var(--light-bg), var(--background));
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
  transition: background-color 0.3s, color 0.3s;
}
/* Contenedor del registro */
.login-container {
  background-color: var(--background);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 400px;
  padding: 2.5rem;
  animation: fadeIn 0.5s ease-in-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.login-container h2 {
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--primary);
  font-size: 2rem;
}
/* Estilos del formulario */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.login-form label {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
}
.login-form input {
  padding: 0.85rem 1rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color 0.3s, box-shadow 0.3s;
  width: 100%;
}
.login-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}
.login-form button {
  background-color: var(--primary);
  color: #fff;
  padding: 0.85rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s;
}
.login-form button:hover {
  background-color: var(--secondary);
}
/* Separador mejorado: con texto y líneas */
.separator {
  text-align: center;
  margin: 2rem 0;
  position: relative;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
}
.separator::before,
.separator::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 35%;
  height: 1px;
  background-color: var(--text);
  opacity: 0.5;
}
.separator::before { left: 0; }
.separator::after { right: 0; }
/* Botones de registro social */
.social-login {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1rem;
  color: #fff;
  transition: background-color 0.3s;
}
.social-btn.google { background-color: #db4437; }
.social-btn.google:hover { background-color: #c33d2e; }
.social-btn.facebook { background-color: #3b5998; }
.social-btn.facebook:hover { background-color: #334b87; }
.social-btn.twitter { background-color: #1da1f2; }
.social-btn.twitter:hover { background-color: #1a94da; }
/* Footer del registro */
.login-footer {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.9rem;
}
.login-footer a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.3s;
}
.login-footer a:hover {
  color: var(--secondary);
}


/* Estilos para mensajes de alerta */
.messages {
  list-style: none;
  margin-bottom: 1rem;
  padding: 0;
}

.alert {
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-weight: 500;
}

/* Mensaje de éxito */
.alert-success {
  background-color: #d1e7dd; /* Color de fondo suave para éxito */
  color: #0f5132;            /* Color de texto para éxito */
  border: 1px solid #badbcc;
}

/* Mensaje de error */
.alert-error {
  background-color: #f8d7da; /* Color de fondo suave para error */
  color: #842029;            /* Color de texto para error */
  border: 1px solid #f5c2c7;
}

/* Modal de alerta */
.modal {
  position: fixed;
  z-index: 3000; /* Mayor que el resto para bloquear la interacción */
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.6); /* Overlay oscuro */
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: var(--background);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow);
  animation: slideDown 0.4s ease-out;
}

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

.modal-content p {
  white-space: pre-wrap;
}


.modal-content button {
  background-color: var(--primary);
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s;
}

.modal-content button:hover {
  background-color: var(--secondary);
}

.social-btn.google {
  background-color: #db4437;
}
.social-btn.google:hover {
  background-color: #c33d2e;
}

.social-btn.linkedin {
  background-color: #0077B5;
}
.social-btn.linkedin:hover {
  background-color: #005582;
}

.social-btn.github {
  background-color: #333;
}
.social-btn.github:hover {
  background-color: #242424;
}