/*
 * ProdKeysHub front-end styles.
 *
 * System font stack only: no web font request, so text paints on the first frame
 * and no layout shift is caused by a late font swap.
 */

:root {
	--pkh-ink: #14161d;
	--pkh-ink-soft: #4a5061;
	--pkh-line: #e3e6ef;
	--pkh-bg: #ffffff;
	--pkh-bg-alt: #f6f7fb;
	--pkh-accent: #5b4bdb;
	--pkh-accent-dark: #4638b8;
	--pkh-ok: #0f9d58;
	--pkh-radius: 10px;
	--pkh-wrap: 1080px;
	--pkh-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
	--pkh-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
	margin: 0;
	background: var(--pkh-bg);
	color: var(--pkh-ink);
	font-family: var(--pkh-font);
	font-size: 17px;
	line-height: 1.65;
}

img { max-width: 100%; height: auto; }

a { color: var(--pkh-accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--pkh-accent-dark); }

h1, h2, h3 { line-height: 1.22; margin: 0 0 .5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.75rem, 1.2rem + 2.2vw, 2.75rem); }
h2 { font-size: clamp(1.35rem, 1.1rem + 1.1vw, 1.85rem); margin-top: 1.6em; }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1em; }

code {
	font-family: var(--pkh-mono);
	font-size: .88em;
	background: var(--pkh-bg-alt);
	border: 1px solid var(--pkh-line);
	border-radius: 4px;
	padding: .1em .4em;
	word-break: break-word;
}

.pkh-container { width: 100%; max-width: var(--pkh-wrap); margin: 0 auto; padding: 0 20px; }

.pkh-skip {
	position: absolute;
	left: -9999px;
	top: 0;
	background: var(--pkh-ink);
	color: #fff;
	padding: .6em 1em;
	z-index: 100;
}
.pkh-skip:focus { left: 0; }

/* --------------------------------------------------------------- header */

.pkh-header {
	border-bottom: 1px solid var(--pkh-line);
	background: var(--pkh-bg);
	position: sticky;
	top: 0;
	z-index: 20;
}

.pkh-header-inner {
	display: flex;
	align-items: center;
	gap: 18px;
	min-height: 64px;
	flex-wrap: wrap;
}

.pkh-brand-link {
	display: inline-flex;
	align-items: center;
	gap: .5em;
	font-weight: 700;
	font-size: 1.05rem;
	color: var(--pkh-ink);
	text-decoration: none;
}

.pkh-brand-mark {
	display: inline-grid;
	place-items: center;
	width: 28px;
	height: 28px;
	border-radius: 8px;
	background: var(--pkh-accent);
	color: #fff;
	font-weight: 700;
}

.pkh-nav { margin-left: auto; }
.pkh-nav-list { display: flex; gap: 16px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.pkh-nav-list a { color: var(--pkh-ink); text-decoration: none; font-size: .95rem; font-weight: 500; }
.pkh-nav-list a:hover { color: var(--pkh-accent); }

.pkh-header-cta {
	background: var(--pkh-accent);
	color: #fff;
	text-decoration: none;
	padding: .5em .9em;
	border-radius: 8px;
	font-size: .9rem;
	font-weight: 600;
	white-space: nowrap;
}
.pkh-header-cta:hover { background: var(--pkh-accent-dark); color: #fff; }

.pkh-crumb-wrap { padding-top: 12px; }

.pkh-breadcrumbs ol {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	font-size: .85rem;
	color: var(--pkh-ink-soft);
}
.pkh-breadcrumbs li + li::before { content: "/"; margin-right: 6px; color: var(--pkh-line); }

/* ---------------------------------------------------------------- hero */

.pkh-hero {
	padding: 44px 0 32px;
	background: linear-gradient(180deg, var(--pkh-bg-alt), var(--pkh-bg));
	border-bottom: 1px solid var(--pkh-line);
}

.pkh-eyebrow {
	text-transform: uppercase;
	letter-spacing: .08em;
	font-size: .74rem;
	font-weight: 700;
	color: var(--pkh-accent);
	margin: 0 0 .6em;
}

.pkh-hero-sub { font-size: 1.08rem; color: var(--pkh-ink-soft); max-width: 62ch; }

.pkh-hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 1.4em 0 1.6em; }

.pkh-btn {
	display: inline-block;
	padding: .65em 1.1em;
	border: 1px solid var(--pkh-line);
	border-radius: 8px;
	background: #fff;
	color: var(--pkh-ink);
	text-decoration: none;
	font-weight: 600;
	font-size: .95rem;
}
.pkh-btn:hover { border-color: var(--pkh-accent); color: var(--pkh-accent); }
.pkh-btn-primary { background: var(--pkh-accent); border-color: var(--pkh-accent); color: #fff; }
.pkh-btn-primary:hover { background: var(--pkh-accent-dark); color: #fff; }
.pkh-btn-sm { padding: .5em .85em; font-size: .9rem; }

.pkh-hero-stats {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	gap: 28px;
	flex-wrap: wrap;
}
.pkh-hero-stats strong { display: block; font-size: 1.3rem; }
.pkh-hero-stats span { font-size: .82rem; color: var(--pkh-ink-soft); }

/* ------------------------------------------------------------- sections */

.pkh-section { padding: 44px 0; }
.pkh-section-alt { background: var(--pkh-bg-alt); border-top: 1px solid var(--pkh-line); border-bottom: 1px solid var(--pkh-line); }

.pkh-lede { color: var(--pkh-ink-soft); max-width: 68ch; }
.pkh-content ul, .pkh-content ol { padding-left: 1.3em; }
.pkh-content li { margin-bottom: .4em; }
.pkh-more { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 1.2em; }

.pkh-after-table { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; margin-top: 26px; }
.pkh-note { background: #fff; border: 1px solid var(--pkh-line); border-left: 4px solid var(--pkh-accent); border-radius: var(--pkh-radius); padding: 16px 18px; }
.pkh-note h3 { margin-top: 0; }

/* --------------------------------------------------------------- tables */

.pkh-table-block { margin-top: 22px; }

.pkh-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }

.pkh-tab {
	border: 1px solid var(--pkh-line);
	background: #fff;
	border-radius: 999px;
	padding: .45em 1em;
	font-size: .9rem;
	font-weight: 600;
	color: var(--pkh-ink-soft);
	cursor: pointer;
}
.pkh-tab.is-active { background: var(--pkh-ink); border-color: var(--pkh-ink); color: #fff; }
.pkh-tab:focus-visible { outline: 2px solid var(--pkh-accent); outline-offset: 2px; }

/* Only collapse panels once the script has confirmed it can run. */
.pkh-table-block.is-tabbed .pkh-panel { display: none; }
.pkh-table-block.is-tabbed .pkh-panel.is-active { display: block; }

.pkh-table-wrap { overflow-x: auto; border: 1px solid var(--pkh-line); border-radius: var(--pkh-radius); background: #fff; }

.pkh-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.pkh-table caption { text-align: left; padding: 12px 16px; font-size: .85rem; color: var(--pkh-ink-soft); border-bottom: 1px solid var(--pkh-line); }
.pkh-table th, .pkh-table td { padding: 11px 16px; text-align: left; border-bottom: 1px solid var(--pkh-line); }
.pkh-table thead th { background: var(--pkh-bg-alt); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--pkh-ink-soft); }
.pkh-table tbody tr:last-child td { border-bottom: 0; }
.pkh-table tbody tr:hover { background: #fbfbfe; }
.pkh-table td:last-child { white-space: nowrap; }

.pkh-version-date { display: block; font-size: .78rem; color: var(--pkh-ink-soft); font-weight: 400; }

.pkh-badge {
	display: inline-block;
	font-size: .7rem;
	font-weight: 700;
	letter-spacing: .04em;
	padding: .15em .5em;
	border-radius: 4px;
	background: var(--pkh-bg-alt);
	border: 1px solid var(--pkh-line);
	color: var(--pkh-ink-soft);
	vertical-align: middle;
}
.pkh-badge-latest { background: #e8f7ee; border-color: #bfe6cd; color: var(--pkh-ok); }

.pkh-dl {
	display: inline-block;
	background: var(--pkh-accent);
	color: #fff !important;
	text-decoration: none;
	padding: .35em .75em;
	border-radius: 6px;
	font-size: .85rem;
	font-weight: 600;
}
.pkh-dl:hover { background: var(--pkh-accent-dark); }

.pkh-dl-soft { font-size: .85rem; color: var(--pkh-ink-soft) !important; }

/* ---------------------------------------------------------- install paths */

.pkh-paths { margin-top: 20px; }
.pkh-paths-title { margin-top: 1.2em; font-size: 1rem; }

.pkh-path-grid {
	list-style: none;
	margin: .8em 0 0;
	padding: 0;
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
	gap: 10px;
}
.pkh-path-grid li {
	background: #fff;
	border: 1px solid var(--pkh-line);
	border-radius: 8px;
	padding: 10px 12px;
	display: flex;
	flex-direction: column;
	gap: 4px;
}
.pkh-os { font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; color: var(--pkh-ink-soft); font-weight: 700; }
.pkh-path-note { font-size: .88rem; color: var(--pkh-ink-soft); }

/* ---------------------------------------------------------------- cards */

.pkh-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; margin-top: 20px; }

.pkh-card {
	background: #fff;
	border: 1px solid var(--pkh-line);
	border-radius: var(--pkh-radius);
	padding: 20px;
}
.pkh-card h3 { margin-top: 0; }
.pkh-card p { color: var(--pkh-ink-soft); font-size: .95rem; }
.pkh-card time { font-size: .8rem; color: var(--pkh-ink-soft); }

/* --------------------------------------------------------------- guides */

.pkh-guides { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; margin-top: 20px; }

.pkh-guide {
	display: flex;
	flex-direction: column;
	gap: 6px;
	padding: 16px 18px;
	background: #fff;
	border: 1px solid var(--pkh-line);
	border-radius: var(--pkh-radius);
	text-decoration: none;
	color: var(--pkh-ink);
}
.pkh-guide:hover { border-color: var(--pkh-accent); color: var(--pkh-ink); }
.pkh-guide strong { font-size: 1rem; }
.pkh-guide span { font-size: .86rem; color: var(--pkh-ink-soft); }

/* ------------------------------------------------------------------ FAQ */

.pkh-faq { margin-top: 26px; }
.pkh-faq-item { background: #fff; border: 1px solid var(--pkh-line); border-radius: var(--pkh-radius); margin-bottom: 10px; }
.pkh-faq-item summary { cursor: pointer; padding: 14px 18px; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.pkh-faq-item summary::-webkit-details-marker { display: none; }
.pkh-faq-marker::after { content: "+"; color: var(--pkh-accent); font-weight: 700; }
.pkh-faq-item[open] .pkh-faq-marker::after { content: "\2212"; }
.pkh-faq-answer { padding: 0 18px 6px; color: var(--pkh-ink-soft); }

/* -------------------------------------------------------------- related */

.pkh-related {
	margin-top: 34px;
	padding: 20px 22px;
	background: var(--pkh-bg-alt);
	border: 1px solid var(--pkh-line);
	border-radius: var(--pkh-radius);
}
.pkh-related h2 { margin-top: 0; font-size: 1.15rem; }
.pkh-related h3 { font-size: .78rem; text-transform: uppercase; letter-spacing: .07em; color: var(--pkh-ink-soft); margin: 1.2em 0 .4em; }
.pkh-related ul { list-style: none; margin: 0; padding: 0; }
.pkh-related li { margin-bottom: .5em; font-size: .93rem; }
.pkh-related li span { color: var(--pkh-ink-soft); }

.pkh-toc { background: #fff; border: 1px solid var(--pkh-line); border-radius: var(--pkh-radius); padding: 14px 20px; margin: 0 0 1.4em; }
.pkh-toc h2 { font-size: .95rem; margin: .2em 0 .5em; }
.pkh-toc ol { margin: 0; padding-left: 1.2em; font-size: .93rem; }

/* --------------------------------------------------------- page shells */

.pkh-page, .pkh-archive, .pkh-404 { padding: 34px 0 10px; }
.pkh-page-head { margin-bottom: 1.2em; }
.pkh-page-meta { font-size: .85rem; color: var(--pkh-ink-soft); }

.pkh-search-form { display: flex; gap: 8px; flex-wrap: wrap; margin: 1em 0; }
.pkh-search-form input[type="search"] { flex: 1 1 240px; padding: .6em .8em; border: 1px solid var(--pkh-line); border-radius: 8px; font-size: 1rem; }
.pkh-search-form input[type="submit"], .pkh-search-form button { padding: .6em 1.1em; border: 0; border-radius: 8px; background: var(--pkh-ink); color: #fff; font-weight: 600; cursor: pointer; }

.pagination { margin: 26px 0; }
.pagination .page-numbers { display: inline-block; padding: .35em .7em; border: 1px solid var(--pkh-line); border-radius: 6px; text-decoration: none; margin-right: 4px; }
.pagination .current { background: var(--pkh-ink); border-color: var(--pkh-ink); color: #fff; }

/* --------------------------------------------------------------- footer */

.pkh-footer { margin-top: 40px; padding: 40px 0 24px; background: var(--pkh-ink); color: #c9cddb; }
.pkh-footer h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .07em; color: #fff; margin: 0 0 .8em; }
.pkh-footer ul { list-style: none; margin: 0; padding: 0; }
.pkh-footer li { margin-bottom: .45em; font-size: .9rem; }
.pkh-footer a { color: #c9cddb; text-decoration: none; }
.pkh-footer a:hover { color: #fff; text-decoration: underline; }

.pkh-footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 26px; }
.pkh-footer-bottom { margin-top: 30px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.14); display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.pkh-footer-about { font-size: .85rem; max-width: 62ch; margin: 0; }
.pkh-legal { display: flex; gap: 14px; flex-wrap: wrap; }

/* ------------------------------------------------------------ utilities */

.screen-reader-text {
	position: absolute !important;
	width: 1px; height: 1px;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
	white-space: nowrap;
}

@media (max-width: 720px) {
	body { font-size: 16px; }
	.pkh-header-inner { min-height: 56px; }
	.pkh-nav { order: 3; margin-left: 0; width: 100%; }
	.pkh-header-cta { display: none; }
	.pkh-hero { padding: 30px 0 24px; }
	.pkh-section { padding: 32px 0; }
	.pkh-table th, .pkh-table td { padding: 10px 12px; }
}

@media (prefers-reduced-motion: reduce) {
	* { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}