/* Base custom resets */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    min-height: 100vh;
}

/* Card refinement */
.card {
    box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.08) !important;
}

/* Optional soft tweaks to make bootstrap look even more polished */
.nav-pills .nav-link {
    font-weight: 500;
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--bs-secondary-color);
}

.nav-pills .nav-link.active {
    background-color: var(--bs-primary);
    color: #fff !important;
    box-shadow: 0 4px 6px rgba(13, 110, 253, 0.2);
}

.form-control:focus, .form-select:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.btn-primary {
    transition: all 0.2s;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 8px rgba(13, 110, 253, 0.3);
}

/* Add custom shake class to apply dynamically later */
.shake-error {
    animation: shake 0.4s ease-in-out;
    border-color: #dc3545 !important;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

/* History list hover effect */
.hover-history-item {
    transition: background-color 0.2s;
}
.hover-history-item:hover {
    background-color: var(--bs-secondary-bg) !important;
}