/* Override accent color with Mainsail red */
[data-md-color-accent=red] {
  --md-accent-fg-color: #d41216;
  --md-accent-fg-color--transparent: #d412161a;
}

/* Override primary/link color with Mainsail red (slate+black defaults to blue) */
[data-md-color-scheme=slate][data-md-color-primary=black] {
  --md-typeset-a-color: #d41216;
  --md-primary-fg-color: #d41216;
}

/* =========================================================================
   Header logo: full branding → icon-only on scroll
   ========================================================================= */

/* Full logo (icon + "Mainsail" text) — visible at page top */
.md-logo__full {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.md-header__button.md-logo {
    padding-bottom: 0;
    margin-bottom: 0;
}

.md-header__button.md-logo .md-logo__full {
    height: 1.8rem;
}

.md-header__title {
    margin-left: 0;
}

/* Icon-only logo — hidden at page top */
.md-header__button.md-logo .md-logo__icon {
    display: none;
    height: 1.4rem;
    width: auto;
}

/* On scroll (shadow = scrolled past tabs): swap logos */
.md-header--shadow .md-header__button.md-logo {
    padding-bottom: .2rem;
    margin-bottom: .2rem;
}

.md-header--shadow .md-header__button.md-logo .md-logo__full {
    display: none;
}

.md-header--shadow .md-header__button.md-logo .md-logo__icon {
    display: block;
}

/* Hide site name text — it is part of the full logo now */
.md-header .md-header__topic:first-child {
    opacity: 0 !important;
    pointer-events: none;
}

@media screen and (max-width: 76.2344em) {
    .md-nav .md-nav__title[for="__drawer"] {
        font-size: 0;
    }

    .md-nav .md-nav__title[for="__drawer"] .md-logo {
        height: auto;
        width: 100%;
    }

    .md-nav .md-nav__title[for="__drawer"] .md-logo img.md-logo__icon {
        display: none;
    }
}

/* =========================================================================
   Sidebar & Navigation
   ========================================================================= */

/* Navi section header */
.md-nav__item--section > label.md-nav__link {
  text-transform: uppercase;
}

/* right sidebar > "ON THIS PAGE" */
.md-sidebar--secondary .md-nav__title {
    text-transform: uppercase;
}

/* Breadcrumb: hide first item (site_name) and separator on new first visible item */
.md-path__item:first-child {
    display: none;
}

.md-path__item:nth-child(2)::before {
    content: none;
}

/* fix margin bottom for h1 headlines */
.md-typeset > h1 {
    margin-bottom: .5em;
}

/* =========================================================================
   Sponsors page
   ========================================================================= */

/* Sponsor links (Patreon, GitHub, Ko-Fi buttons) */
.sponsor-links {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
    margin-top: .5rem;
}

/* --- Official Mainboard Partner (hero card) --- */
.sponsor-highlight {
    text-align: center;
    padding: .75rem;
    border-radius: .75rem;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(212, 18, 22, .08) 0%, transparent 70%),
        linear-gradient(168deg, rgba(255, 255, 255, .04) 0%, rgba(255, 255, 255, .01) 100%);
    border: 1px solid rgba(255, 255, 255, .07);
    transition:
        border-color .35s cubic-bezier(.22, 1, .36, 1),
        box-shadow .35s cubic-bezier(.22, 1, .36, 1);
}

.sponsor-highlight:hover {
    border-color: rgba(212, 18, 22, .3);
    box-shadow:
        0 8px 24px rgba(0, 0, 0, .2),
        0 0 0 1px rgba(212, 18, 22, .1);
}

.sponsor-highlight p {
    margin: 0;
    font-size: .75rem;
}

.sponsor-highlight p + p {
    margin-top: .25rem;
    color: var(--md-default-fg-color--light);
    line-height: 1.6;
}

.sponsor-highlight a {
    transition: filter .3s ease;
}

.sponsor-highlight a:hover {
    filter: brightness(1.1);
}

.sponsor-logo-large {
    max-width: 380px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 2px 12px rgba(0, 0, 0, .25));
}

/* --- Sponsor grid (Vendor Partners & Open Source Licenses) --- */
.sponsor-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin: 1.5rem 0;
}

.sponsor-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: .75rem .75rem .6rem;
    border-radius: .75rem;
    background: linear-gradient(
        168deg,
        rgba(255, 255, 255, .04) 0%,
        rgba(255, 255, 255, .01) 100%
    );
    border: 1px solid rgba(255, 255, 255, .07);
    transition:
        border-color .35s cubic-bezier(.22, 1, .36, 1),
        box-shadow .35s cubic-bezier(.22, 1, .36, 1),
        transform .35s cubic-bezier(.22, 1, .36, 1),
        background .35s ease;
    overflow: hidden;
    cursor: pointer;
}

/* subtle top-edge accent line */
.sponsor-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--md-accent-fg-color), transparent);
    border-radius: 0 0 2px 2px;
    transition: width .4s cubic-bezier(.22, 1, .36, 1);
}

.sponsor-card:hover {
    border-color: rgba(212, 18, 22, .3);
    box-shadow:
        0 8px 24px rgba(0, 0, 0, .2),
        0 0 0 1px rgba(212, 18, 22, .1);
    transform: translateY(-3px);
    background: linear-gradient(
        168deg,
        rgba(255, 255, 255, .06) 0%,
        rgba(255, 255, 255, .02) 100%
    );
}

.sponsor-card:hover::before {
    width: 60%;
}

/* reset paragraph wrapper inserted by markdown renderer */
.sponsor-card p {
    margin: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.sponsor-card a {
    display: block;
    width: 100%;
    text-decoration: none !important;
}

/* stretch link over entire card */
.sponsor-card a::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
}

.sponsor-card a:hover {
    transform: none;
}

.sponsor-card strong {
    display: block;
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .03em;
    text-transform: uppercase;
    color: var(--md-default-fg-color--light);
    transition: color .3s ease;
}

.sponsor-card:hover strong {
    color: var(--md-default-fg-color);
}

/* sponsor logos inside grid cards — fill the card width */
.sponsor-logo {
    width: 100%;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 1px 4px rgba(0, 0, 0, .15));
    transition: filter .3s ease;
}

.sponsor-card:hover .sponsor-logo {
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, .25));
}

/* --- Responsive --- */
@media screen and (max-width: 768px) {
    .sponsor-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .sponsor-card {
        padding: 1.5rem 1rem 1.25rem;
    }
}

@media screen and (max-width: 480px) {
    .sponsor-grid {
        grid-template-columns: 1fr;
    }

    .sponsor-highlight {
        padding: 1.5rem 1rem;
    }
}