/* Project styling layered on top of Doxygen Awesome. Theme-owned typography,
 * navigation, spacing, and API-reference rules remain untouched. */

html {
    --primary-color: #1565c0;
    --primary-dark-color: #0d47a1;
    --primary-light-color: #5e92f3;
    --link-color: #1565c0;
    --content-maxwidth: 1120px;
}

html.dark-mode {
    --primary-color: #6ba6f8;
    --primary-dark-color: #9fc4fa;
    --primary-light-color: #315f9f;
    --link-color: #82b4fa;
}

.docs-hero {
    margin: var(--spacing-large) 0 calc(2 * var(--spacing-xlarge));
    padding: clamp(26px, 5vw, 52px);
    overflow: hidden;
    border: 1px solid var(--separator-color);
    border-radius: var(--border-radius-large);
    background:
        radial-gradient(circle at 92% 8%, rgba(21, 101, 192, 0.16), transparent 34%),
        linear-gradient(135deg, var(--note-color), var(--page-background-color) 72%);
    box-shadow: var(--box-shadow);
}

.docs-eyebrow {
    margin-bottom: var(--spacing-medium);
    color: var(--primary-dark-color);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.docs-lead {
    max-width: 780px;
    margin: 0;
    color: var(--page-foreground-color);
    font-size: clamp(1.18rem, 2.2vw, 1.55rem);
    line-height: 1.55;
}

.docs-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-medium);
    margin-top: var(--spacing-xlarge);
}

.docs-actions .primary-button,
.docs-secondary-button {
    box-sizing: border-box;
    min-height: 42px;
    padding: 9px 18px;
    border-radius: var(--border-radius-medium);
    font-weight: 650;
    line-height: 22px;
    text-decoration: none;
}

.docs-secondary-button {
    border: 1px solid var(--separator-color);
    background: var(--page-background-color);
    color: var(--link-color) !important;
}

.docs-secondary-button:hover {
    border-color: var(--primary-color);
    background: var(--side-nav-background);
    text-decoration: none;
}

.docs-card-grid,
.docs-guide-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-large);
    margin: var(--spacing-large) 0 calc(2 * var(--spacing-xlarge));
}

.docs-card {
    min-width: 0;
    padding: clamp(18px, 3vw, 26px);
    border: 1px solid var(--separator-color);
    border-radius: var(--border-radius-large);
    background: var(--page-background-color);
    box-shadow: var(--box-shadow);
    transition: border-color var(--animation-duration),
                box-shadow var(--animation-duration),
                transform var(--animation-duration);
}

.docs-card:hover {
    border-color: var(--primary-light-color);
    box-shadow: 0 5px 18px rgba(0, 0, 0, 0.10);
    transform: translateY(-1px);
}

html.dark-mode .docs-card:hover {
    box-shadow: 0 5px 18px rgba(0, 0, 0, 0.32);
}

.docs-card h2,
.docs-card h3 {
    margin-top: 0;
}

.docs-card p:last-child,
.docs-card ul:last-child {
    margin-bottom: 0;
}

.docs-feature-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-large) var(--spacing-xlarge);
    margin: var(--spacing-large) 0 calc(2 * var(--spacing-xlarge));
}

.docs-feature-list > div {
    padding-left: var(--spacing-large);
    border-left: 3px solid var(--primary-color);
}

.docs-guide-grid {
    align-items: start;
}

.docs-guide-card:first-child,
.docs-guide-card:nth-child(2),
.docs-guide-card:nth-child(3) {
    grid-column: span 1;
}

.docs-link-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.docs-link-list li {
    padding: 12px 0;
    border-top: 1px solid var(--separator-color);
}

.docs-link-list li:first-child {
    padding-top: 0;
    border-top: 0;
}

.docs-link-list li:last-child {
    padding-bottom: 0;
}

.docs-link-list a {
    display: inline-block;
    font-weight: 650;
}

.docs-link-list span {
    display: block;
    margin-top: 2px;
    color: var(--page-secondary-foreground-color);
    line-height: 1.5;
}

.docs-footer-actions {
    justify-content: flex-end;
    padding-top: var(--spacing-large);
    border-top: 1px solid var(--separator-color);
}

.docs-actions a:focus-visible,
.docs-card a:focus-visible {
    outline: 3px solid var(--primary-light-color);
    outline-offset: 3px;
}

@media screen and (max-width: 767px) {
    .docs-card-grid,
    .docs-guide-grid,
    .docs-feature-list {
        grid-template-columns: 1fr;
    }

    .docs-hero {
        margin-top: 0;
    }

    .docs-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .docs-actions .primary-button,
    .docs-secondary-button {
        width: 100%;
        text-align: center;
    }
}

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

    .docs-card:hover {
        transform: none;
    }
}