/* Introduction page: hero */
.hero {
    margin: 1rem 0 2rem 0;
    padding: 2rem 1.5rem;
    border-radius: 10px;
    border: 1px solid var(--quote-border);
    background: var(--quote-bg);
    text-align: center;
}

.hero .tagline {
    margin: 0;
    font-size: 2em;
    font-weight: 700;
    line-height: 1.25;
}

.hero .subline {
    margin: 0.75rem auto 0 auto;
    max-width: 38em;
    font-size: 1.1em;
    opacity: 0.85;
}

.hero .actions {
    margin-top: 1.5rem;
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero .button {
    display: inline-block;
    padding: 0.55rem 1.2rem;
    border-radius: 6px;
    border: 2px solid var(--links);
    font-weight: 600;
    text-decoration: none;
}

.hero .button.primary {
    background: var(--links);
    color: var(--bg);
}

.hero .button:hover {
    text-decoration: none;
    opacity: 0.85;
}

/* Introduction page: compact feature grid */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem;
    margin: 1.25rem 0 1.5rem 0;
}

a.feature {
    display: block;
    padding: 0.85rem 1rem;
    border: 1px solid var(--quote-border);
    border-top: 3px solid var(--links);
    border-radius: 6px;
    color: var(--fg);
    text-decoration: none;
    transition: transform 0.1s ease-in-out, border-color 0.1s ease-in-out;
}

a.feature:hover {
    text-decoration: none;
    transform: translateY(-2px);
    border-color: var(--links);
}

a.feature .title {
    display: block;
    font-weight: 700;
    color: var(--links);
}

a.feature .line {
    display: block;
    margin-top: 0.3rem;
    font-size: 0.92em;
}

a.feature .badge {
    display: inline-block;
    margin-left: 0.35rem;
    padding: 0 0.45rem;
    border-radius: 999px;
    font-size: 0.72em;
    font-weight: 600;
    vertical-align: middle;
    color: var(--bg);
    background: var(--links);
}

/* mdBook styles `.content a:link`; override it so card text uses the normal text color */
.content a.feature:link,
.content a.feature:visited {
    color: var(--fg);
}

.content a.feature .title {
    color: var(--links);
}

.content a.feature .line {
    color: var(--fg);
    opacity: 0.85;
}

.content .hero a.button.primary:link,
.content .hero a.button.primary:visited {
    color: var(--bg);
}