/* Authentication Forms */
#loginForm button[type="submit"]:disabled,
#registerForm button[type="submit"]:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

#loginForm button[type="submit"]:disabled:hover,
#registerForm button[type="submit"]:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* Loading animation for buttons */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.btn-loading .spinner-border {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
    margin-right: 0.5rem;
}

/* Form validation states */
.form-control.is-invalid {
    border-color: var(--danger-color);
}

.form-control.is-valid {
    border-color: var(--success-color);
}

.invalid-feedback {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Alert improvements */
.alert {
    border: none;
    border-radius: var(--border-radius);
}

.alert-danger {
    background-color: #fee;
    color: var(--danger-color);
}

.alert-success {
    background-color: #f0fdf4;
    color: var(--success-color);
}

/* Card improvements for auth */
.auth-card {
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    border: none;
}

.auth-card .card-body {
    padding: 2rem;
}

@media (max-width: 576px) {
    .auth-card .card-body {
        padding: 1.5rem;
    }
}

/* Input group improvements */
.input-group .btn-outline-secondary {
    border-color: var(--border-color);
    color: var(--text-muted);
}

.input-group .btn-outline-secondary:hover {
    background-color: var(--light-color);
    color: var(--secondary-color);
}

/* Form focus states */
.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem var(--focus-ring);
}

/* Link improvements */
.text-primary {
    color: var(--primary-color) !important;
}

a.text-primary:hover {
    color: var(--primary-dark) !important;
}

/* Security notice */
.security-notice {
    font-size: 0.875rem;
    opacity: 0.8;
}

.security-notice i {
    color: var(--success-color);
}