/* Reset */
* {margin:0;padding:0;box-sizing:border-box;font-family:'Poppins',sans-serif;}

/* Fondo degradado animado */
body {
  height:100vh;
  display:flex;
  justify-content:center;
  align-items:center;
  background: linear-gradient(135deg, #105890, #6a8ab8, #105890);
  overflow:hidden;
  position:relative;
}

/* Mariposas de fondo */
.butterfly {
  position:absolute;
  width:50px;
  height:50px;
  background-image: url('../images/mari.svg');
  background-size:contain;
  background-repeat:no-repeat;
  animation:fly 15s linear infinite;
}

.butterfly:nth-child(1) {top:10%; left:10%; animation-delay:0s;}
.butterfly:nth-child(2) {top:20%; left:80%; animation-delay:3s;}
.butterfly:nth-child(3) {top:70%; left:30%; animation-delay:6s;}
.butterfly:nth-child(4) {top:60%; left:70%; animation-delay:9s;}

@keyframes fly {
  0% {transform: translate(0,0) rotate(0deg);}
  25% {transform: translate(50px,-30px) rotate(20deg);}
  50% {transform: translate(-30px,50px) rotate(-15deg);}
  75% {transform: translate(40px,-20px) rotate(10deg);}
  100% {transform: translate(0,0) rotate(0deg);}
}

/* Contenedor login */
.login-container {
  position:relative;
  z-index:1;
  background: rgba(255,255,255,0.95);
  border-radius:30px;
  padding:50px 40px;
  width:100%;
  max-width:420px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.25);
  overflow:hidden;
  animation: fadeIn 1s ease forwards;
}

/* T¨ªtulo */
.login-container h1 {
  text-align:center;
  color:#105890;
  font-weight:700;
  margin-bottom:35px;
  font-size:28px;
  letter-spacing:1px;
}

/* Formulario */
.form-group {position:relative;margin-bottom:30px;}

.form-group input {
  width:100%;
  padding:14px 45px 14px 15px;
  border:2px solid #ccc;
  border-radius:15px;
  font-size:16px;
  transition:0.3s;
}

.form-group input:focus {
  border-color:#105890;
  box-shadow:0 0 12px rgba(16,88,144,0.3);
  outline:none;
}

/* Iconos dentro del input */
.form-group i {
  position:absolute;
  top:50%;
  right:15px;
  transform:translateY(-50%);
  color:#105890;
  font-size:20px;
}

/* Bot¨®n principal */
.btn-primary {
  width:100%;
  padding:14px;
  background:linear-gradient(135deg, #105890, #1e3d59);
  color:white;
  border:none;
  border-radius:20px;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  transition:0.4s;
}

.btn-primary:hover {
  background:linear-gradient(135deg, #0d3a5f, #13385a);
  transform:translateY(-2px);
}

/* Modal de bienvenida */
#welcomeModal {
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:100%;
  background:rgba(0,0,0,0.5);
  display:flex;
  justify-content:center;
  align-items:center;
  visibility:hidden;
  opacity:0;
  transition:0.5s;
  z-index:10;
}

#welcomeModal.active {
  visibility:visible;
  opacity:1;
}

.welcome-content {
  position:relative;
  background:#fff;
  padding:40px 30px;
  border-radius:25px;
  text-align:center;
  width:90%;
  max-width:450px;
  box-shadow:0 20px 50px rgba(0,0,0,0.3);
  overflow:hidden;
}

.welcome-content h2 {
  color:#105890;
  font-size:26px;
  margin-bottom:20px;
}

.welcome-content p {
  color:#333;
  font-size:16px;
  margin-bottom:25px;
}

/* Bot¨®n cerrar modal */
.close-btn {
  padding:10px 25px;
  background:#105890;
  color:white;
  border:none;
  border-radius:20px;
  cursor:pointer;
  transition:0.3s;
  font-weight:600;
}

.close-btn:hover {
  background:#0d3a5f;
  transform:translateY(-2px);
}

@keyframes fadeIn {
  0% {opacity:0; transform:translateY(-20px);}
  100% {opacity:1; transform:translateY(0);}
}