:root {
    --toolkit-card-radius: 1rem;
}

body {
    min-height: 100vh;
    background: var(--bs-body-bg);
}

.card {
    border-radius: var(--toolkit-card-radius);
}

.tool-card {
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.tool-card:hover,
.tool-card:focus-visible {
    transform: translateY(-2px);
    box-shadow: var(--bs-box-shadow-sm);
    border-color: rgba(var(--bs-primary-rgb), 0.45);
}

.formula-box {
    overflow-x: auto;
    padding: 0.75rem 1rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 0.75rem;
    background: var(--bs-tertiary-bg);
}

@media (prefers-reduced-motion: reduce) {
    .tool-card {
        transition: none;
    }
}

@media (max-width: 768px) {
    .row.g-3 > div {
    flex: 0 0 100%;
    max-width: 100%;
    }
}

.time-toggle-group span {
    cursor: pointer;
    color: #0d6efd;
    text-decoration: underline;
    margin-left: 0.5rem;
}
.time-toggle-group span.active {
    font-weight: bold;
    text-decoration: none;
}

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}
.navbar-brand img {
    background-color: white;
    padding: 5px;
    border-radius: 5px;
}
body {
    padding-top: 80px;
}
.warning {
    color: #d9534f;
}
.inline-group {
    display: flex;
    gap: 1rem;
}
.inline-group > * {
    flex: 1;
}
.output-field {
    background-color: #f8f9fa;
    font-weight: bold;
}