/*
 * Standalone, framework-free styling for the shared "fancy" footer
 * (see include/shared-footer.inc -> fancy_footer()).
 *
 * This is the vanilla-CSS counterpart to the Tailwind build in php85.css that
 * the release pages use. It is fully self-contained; every rule is scoped under
 * `.php-footer` so it can sit at the bottom of a classic php.net page without
 * leaking into, or inheriting from, the rest of that page's styles.
 */

.php-footer {
    --footer-fg: #ffffffcc;        /* body / link text */
    --footer-fg-strong: #ffffff;   /* headings, logo, hover */
    --footer-accent: #6b58ff;      /* Donate button */
    --footer-accent-hover: #5a47e6;
    --footer-border: #ffffff1a;

    isolation: isolate;
    position: relative;
    z-index: 10;
    clear: both;
    /* Transparent so the classic pages' dark-grey (#333) textured html
       background shows through, blending the footer into the page. */
    background-color: transparent;
    line-height: normal;
    text-align: left;
}

/*
 * Match the width of the classic site chrome (#layout, .navbar__inner):
 * fluid below 1200px, then fixed 1170px / 1440px, centered.
 */
.php-footer .footer-container {
    width: auto;
    max-width: none;
    margin-inline: auto;
    padding-inline: 0;
    padding-top: 4rem;
    padding-bottom: 2rem;
    box-sizing: border-box;
}

@media (min-width: 1200px) {
    .php-footer .footer-container {
        width: 1170px;
    }
}

@media (min-width: 1500px) {
    .php-footer .footer-container {
        width: 1440px;
    }
}

/* --- top grid: brand column + link columns ------------------------------ */

.php-footer .footer-grid > div > *:not(:last-child) {
    margin-bottom: 2rem;
}

.php-footer .footer-logo {
    display: inline-block;
    height: 2.5rem;
    border: 0;
    text-decoration: none;
}

.php-footer .footer-logo svg {
    display: inline-block;
    height: 2.5rem;
    width: auto;
    color: var(--footer-fg-strong);
}

.php-footer p {
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.5rem;
    text-wrap: balance;
    color: var(--footer-fg);
}

.php-footer p a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 2px;
    border: 0;
}

.php-footer p a:hover {
    color: var(--footer-fg-strong);
}

/* --- social icons ------------------------------------------------------- */

.php-footer .social-icons {
    display: flex;
    column-gap: 1.5rem;
}

.php-footer .social-icons a {
    display: inline-flex;
    color: var(--footer-fg);
    border: 0;
    text-decoration: none;
}

.php-footer .social-icons a:hover {
    color: var(--footer-fg-strong);
}

.php-footer .social-icons svg {
    width: 1.5rem;
    height: 1.5rem;
}

/* --- Donate button ------------------------------------------------------ */

.php-footer .button-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.5rem;
    padding-inline: 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--footer-fg-strong);
    background-color: var(--footer-accent);
    border: 0;
    border-radius: 9999px;
    text-decoration: none;
    cursor: pointer;
}

.php-footer .button-primary:hover {
    background-color: var(--footer-accent-hover);
}

.php-footer .button-primary:focus-visible {
    outline: 2px solid var(--footer-fg-strong);
    outline-offset: 2px;
}

/* --- link columns ------------------------------------------------------- */

.php-footer .footer-links-container {
    margin-top: 4rem;
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.php-footer .footer-links-grid h3 {
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.5rem;
    font-weight: 600;
    color: var(--footer-fg-strong);
}

.php-footer .footer-links-grid ul {
    list-style: none;
    margin: 1.5rem 0 0;
    padding: 0;
}

.php-footer .footer-links-grid li:not(:last-child) {
    margin-bottom: 1rem;
}

.php-footer .footer-links-grid a {
    font-size: 0.875rem;
    line-height: 1.5rem;
    color: var(--footer-fg);
    border: 0;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.php-footer .footer-links-grid a:hover {
    color: var(--footer-fg-strong);
}

.php-footer .footer-links-grid div:first-of-type {
    margin-bottom: 2.5rem;
}

/* --- copyright credits -------------------------------------------------- */

.php-footer .footer-credits {
    margin-top: 0;
    padding-top: 2rem;
    border-top: 1px solid var(--footer-border);
}

.php-footer .footer-credits p {
    font-size: 0.875rem;
    line-height: 1.5rem;
    color: var(--footer-fg);
}

.php-footer .footer-credits p a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* --- accessibility helper (in case the host page lacks one) -------------- */

.php-footer .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --- responsive --------------------------------------------------------- */

@media (min-width: 48rem) {
    .php-footer .footer-links-grid {
        display: grid;
        gap: 2rem;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .php-footer .footer-links-grid div:first-of-type {
        margin-bottom: 0;
    }
}

@media (min-width: 64rem) {
    .php-footer .footer-container {
        padding-top: 7rem;
    }

    .php-footer .footer-credits {
        margin-top: 6rem;
    }
}

@media (min-width: 80rem) {
    .php-footer .footer-grid {
        display: grid;
        gap: 2rem;
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .php-footer .footer-links-container {
        margin-top: 0;
        grid-column: span 2 / span 2;
    }
}