.auth-container {
    max-width: 400px;
    margin: 60px auto;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(255,255,255,0.1);
    padding: 2.5em;
}
h2 {
    text-align: center;
    margin-bottom: 1.2em;
    color: #ff6600;
}
form {
    display: none;
}
form.active {
    display: block;
    animation: fadeIn 0.4s ease;
}
input {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    background: #222;
    color: #eee;
    border: 1px solid #555;
    border-radius: 6px;
}
button {
    width: 100%;
    padding: 10px;
    background: #ff6600;
    border: none;
    color: #fff;
    font-weight: bold;
    border-radius: 6px;
    cursor: pointer;
}
button:hover {
    background: #ff8533;
}
.links {
    text-align: center;
    margin-top: 10px;
}
.links a {
    color: #aaa;
    font-size: 0.9em;
    text-decoration: none;
    margin: 0 5px;
}
.links a:hover {
    text-decoration: underline;
    color: #fff;
}
@keyframes fadeIn {
    from {opacity: 0; transform: translateY(10px);}
    to {opacity: 1; transform: translateY(0);}
}
.message {text-align:center; margin-bottom:10px;}
.error {color:#ff5555;}
.success {color:#55ff99;}