/* Fondo animado con gradiente */
body {
    margin: 0;
    padding: 0;
    height: 100vh;
    background: linear-gradient(270deg, #000000, #000000);
    background-size: 400% 400%;
    animation: fondoAnimado 12s ease infinite;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Segoe UI', sans-serif;
}

@keyframes fondoAnimado {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Login centrado */
.login-box {
    background-color: #09ff00;
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 40px;
    width: 90%;
    max-width: 400px;
   box-shadow: 0 0 15px rgb(21, 255, 0);
    position: relative;
    border: 1px solid rgb(9, 255, 0);
    text-align: center;
}

/* Brillo animado en bordes */
.login-box::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #2e302d, #2e302d);
    background-size: 300% 300%;
    border-radius: 20px;
    z-index: -1;
    filter: blur(12px);
    animation: brillo 6s linear infinite;
}

@keyframes brillo {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.logo-titulo {
    color: #ffffff;
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 25px;
}

h2 {
    color: #ffffff;
    margin-bottom: 20px;
}

/* Formularios */
form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    text-align: left;
}

label {
    color: #ffffff;
    font-weight: bold;
}

input[type="text"],
input[type="password"] {
    padding: 10px;
    border-radius: 8px;
    border: none;
    font-size: 16px;
    background-color: #ffffff;
    color: #000;
}

input[type="submit"] {
    background-color: #32ac32;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: 0.3s ease;
}

input[type="submit"]:hover {
    background-color: #5f4f3f;
}

/* Mensaje flotante de error */
.floating-error {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: #f44336;
    color: white;
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
    z-index: 1000;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.floating-error.show {
    opacity: 1;
    transform: translateY(0);
}


/* Responsive */
@media (max-width: 480px) {
    .login-box {
        padding: 25px;
    }

    .logo-titulo {
        font-size: 18px;
    }
}