/* Fondo con gradiente y estrellas */
body {
    margin: 0;
    height: 100vh;
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #4b0082, #6a0dad, #8a2be2);
    display: flex;
    justify-content: center;
    align-items: center;
    background-attachment: fixed;
    overflow: hidden;
    color: #fff;
}

/* Animación de estrellas */
body::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: url('https://www.transparenttextures.com/patterns/stardust.png');
    opacity: 0.3;
    z-index: 0;
}

.auth-box {
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    width: 350px;
    text-align: center;
    backdrop-filter: blur(10px);
}

.auth-box h2 {
    margin-bottom: 20px;
    font-size: 28px;
    color: #fff;
}

.input-group {
    position: relative;
    margin-bottom: 20px;
}

.input-group input {
    width: 100%;
    padding: 12px 15px;
    border-radius: 25px;
    border: none;
    outline: none;
    background: rgba(255,255,255,0.2);
    color: #fff;
    font-size: 16px;
}

.input-group input::placeholder {
    color: #ddd;
}

button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 25px;
    background: #6a0dad;
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background: #8a2be2;
}

p {
    margin-top: 15px;
    font-size: 14px;
    color: #ddd;
}

p a {
    color: #fff;
    font-weight: bold;
    text-decoration: none;
}

p a:hover {
    text-decoration: underline;
}