@import url("https://fonts.googleapis.com/css2?family=Quicksand:wght@300;400;500;600;700&display=swap");
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Quicksand", sans-serif;
}
body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #000;
}
section {
  position: absolute;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
  overflow: hidden;
}
section::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(#000, #0f0, #000);
  animation: animate 5s linear infinite;
}
@keyframes animate {
  0% {
    transform: translateY(-100%);
  }
  100% {
    transform: translateY(100%);
  }
}
section span {
  position: relative;
  display: block;
  width: calc(6.25vw - 2px);
  height: calc(6.25vw - 2px);
  background: #181818;
  z-index: 2;
  transition: 1.5s;
}
section span:hover {
  background: #0f0;
  transition: 0s;
}

section .signin {
  position: absolute;
  width: 400px;
  background: #222;
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px;
  border-radius: 4px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 9);
}
section .signin .content {
  position: relative;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 40px;
}
section .signin .content h2 {
  font-size: 2em;
  color: #0f0;
  text-transform: uppercase;
}
section .signin .content .form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 25px;
}
section .signin .content .form .inputBox {
  position: relative;
  width: 100%;
}
section .signin .content .form .inputBox input {
  position: relative;
  width: 100%;
  background: #333;
  border: none;
  outline: none;
  padding: 25px 10px 7.5px;
  border-radius: 4px;
  color: #fff;
  font-weight: 500;
  font-size: 1em;
}
section .signin .content .form .inputBox i {
  position: absolute;
  left: 0;
  padding: 15px 10px;
  font-style: normal;
  color: #aaa;
  transition: 0.5s;
  pointer-events: none;
}
.signin .content .form .inputBox input:focus ~ i,
.signin .content .form .inputBox input:valid ~ i {
  transform: translateY(-7.5px);
  font-size: 0.8em;
  color: #fff;
}
.signin .content .form .links {
  position: relative;
  width: 100%;
  display: flex;
  justify-content: space-between;
}
.signin .content .form .links a {
  color: #fff;
  text-decoration: none;
}
.signin .content .form .links a:nth-child(2) {
  color: #0f0;
  font-weight: 600;
}
.signin .content .form .inputBox input[type="submit"] {
  padding: 10px;
  background: #0f0;
  color: #000;
  font-weight: 600;
  font-size: 1.35em;
  letter-spacing: 0.05em;
  cursor: pointer;
}
input[type="submit"]:active {
  opacity: 0.6;
}
@media (max-width: 900px) {
  section span {
    width: calc(10vw - 2px);
    height: calc(10vw - 2px);
  }
}
@media (max-width: 600px) {
  section span {
    width: calc(20vw - 2px);
    height: calc(20vw - 2px);
  }
}

/* nota en la fila de enlaces */
.admin-note { color:#a8c8ad; font-size:.92rem; }

/* barra de error/aviso bajo el botón (match con tu estética) */
.err{
  margin-top:10px;
  padding:8px 10px;
  border-radius:8px;
  background:#240d10;
  border:1px solid #5c1d25;
  color:#ffb9c1;
  text-align:center;
  box-shadow:0 10px 25px rgba(0,0,0,.35);
}

.admin-note{ color:#b7ffc0; font-size:.92rem; background:transparent; padding:0; }
.err{
  margin-top:10px; padding:8px 12px; border-radius:8px;
  background:#240d10; border:1px solid #5c1d25; color:#ffb9c1;
  text-align:center; box-shadow:0 10px 25px rgba(0,0,0,.35);
}

/* Separador con raya y "o" */
.divider {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #aaa;
  margin: 20px 0 10px;
  font-size: .9em;
}

/* Evita que el separador herede estilos del fondo */
.divider > span{
  display:inline;
  width:auto; height:auto;
  background: transparent !important;
  position: static;
  line-height: 1;
}


.divider::before,
.divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid #333;
}
.divider span {
  margin: 0 10px;
  color: #777;
}

/* Botón circular Google */
.social-login {
  display: flex;
  justify-content: center;
}
.btn-google-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease;
}
.btn-google-circle:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,.3);
}
.btn-google-circle svg {
  width: 22px;
  height: 22px;
}