/* Shared Auth Styles */
.auth-container {
    margin: 0 auto;
}
.register-container {
    max-width: 450px;
    margin-top: 5vh;
}
.login-container {
    max-width: 400px;
    margin-top: 10vh;
}
.form-floating label {
    color: var(--text-secondary);
}
.form-floating input {
    background-color: var(--glass-subtle-bg);
    border: 1px solid var(--glass-subtle-border);
    color: var(--text-primary);
    transition: all 0.3s ease;
}
.form-floating input:focus {
    background-color: var(--glass-hover-bg);
    border-color: var(--glass-border);
    color: var(--text-primary);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.15);
}
.form-floating input.is-invalid {
    border-color: #dc3545;
    background-image: none;
}
.form-floating input::placeholder {
    color: transparent;
}
.form-check-label {
    color: var(--text-secondary);
}
.btn-auth {
    background: linear-gradient(135deg, var(--glass-subtle-bg), var(--glass-hover-bg));
    border: 1px solid var(--glass-subtle-border);
    color: var(--text-primary);
    padding: 12px;
    font-weight: 500;
    letter-spacing: 1px;
    transition: all 0.3s;
}
.btn-auth:hover {
    background: linear-gradient(135deg, var(--glass-hover-bg), var(--glass-subtle-bg));
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
    color: var(--text-primary);
}
.auth-error {
    animation: shake 0.5s;
}
@keyframes shake {
    0% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    50% { transform: translateX(10px); }
    75% { transform: translateX(-10px); }
    100% { transform: translateX(0); }
}
.invalid-feedback {
    color: #ff6b6b;
    font-size: 0.85em;
    margin-top: 5px;
    display: none;
}
[data-theme="light"] .invalid-feedback {
    color: #dc3545;
}
input.is-invalid ~ .invalid-feedback {
    display: block;
}