* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Verdana', sans-serif;
    background: linear-gradient(135deg, #000, #300);
}
.corpoO {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    color: #fff;
}
.card-login {
    position: relative;
    background: #1a1a1a;
    border: 2px solid #ff0000;
    border-radius: 10px;
    padding: 30px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 0 20px rgba(255,0,0,0.5);
    animation: aparecer 1s ease-out;
    z-index: 10;
}
.form-grupo { margin-bottom: 15px; }
.form-grupo label { margin-bottom: 5px; display: block; }
.form-grupo input {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
}
.form-grupo input:focus {
    outline: none;
    box-shadow: 0 0 8px #ff0000;
}
.botao {
    width: 100%;
    padding: 12px;
    background: #ff0000;
    border: none;
    border-radius: 5px;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    transition: background 0.3s;
}
.botao:hover { background: #cc0000; }
p{text-align: center;margin-top: 15px;}
a {
    margin: 0 2px;
    font-size: 14px;
    position: relative;
    color: #fff;
    font-weight: 800;
    text-decoration: none;
  }
a::after {
    content: "";
    position: absolute;
    width: 0%;
    height: 2px;
    bottom: -3px;
    left: 0;
    background-color: #f00;
    transition: width 0.3s;
  }
a:hover::after {
    width: 100%;
}
.erro {
    background: #ff4444;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 15px;
    text-align: center;
    animation: tremer 0.5s;
}
@keyframes aparecer {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}
@keyframes tremer {
    0% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    50% { transform: translateX(5px); }
    75% { transform: translateX(-5px); }
    100% { transform: translateX(0); }
}
@media (max-width: 480px) {
    .card-login { padding: 20px; }
}
.logotipo {
    width: 100%;
    height: 200px;
    margin-top: -110px;
    margin-bottom: 20px;
    object-fit: contain;
}
.iconegirado {
    position: absolute;
    width: 810px;
    bottom: -450px;
    right: -450px;
    animation: rotate infinite 180s linear;
    pointer-events: none;
}
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}