/*
Theme Name: Clarity Blog
Description: A Clarity-inspired (VMware design system) theme with a dark app header, left vertical navigation, a wide fluid content area, and high-contrast code blocks. Not affiliated with or endorsed by Broadcom or VMware.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
License: MIT
Text Domain: clarity-blog
*/

/* ---------- Tokens ---------- */
:root {
  --font: "Metropolis", "Avenir Next", Avenir, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, "Liberation Mono", monospace;
  --header-h: 60px;
  --nav-w: 250px;

  --bg: #f1f3f4;
  --surface: #ffffff;
  --nav-bg: #fafafa;
  --border: #d3dadd;
  --text: #21333b;
  --muted: #5b6b73;
  --link: #0072a3;
  --link-hover: #004a70;
  --primary: #0072a3;
  --primary-hover: #00567a;
  --nav-hover: #e6ecef;
  --nav-active-bg: #dceaf1;
  --header-bg: #1b2a32;
  --inline-code-bg: #e8edef;
  --inline-code-text: #8a1c4b;

  --info-bg: #e3f4fb;    --info-edge: #0072a3;
  --warn-bg: #fff3d6;    --warn-edge: #c77c00;
  --ok-bg: #e5f4df;      --ok-edge: #3b7a1e;
  --danger-bg: #fbe3e1;  --danger-edge: #c21d00;

  --code-bg: #1e1e1e;
  --code-bar: #2b2b2b;
  --code-border: #3a3a3a;
  --code-text: #e6e6e6;
  --code-muted: #9aa5ab;
}

:root[data-theme="dark"] {
  --bg: #10181d;
  --surface: #1b2a32;
  --nav-bg: #162229;
  --border: #31444d;
  --text: #e9edef;
  --muted: #a3b1b8;
  --link: #4cb4de;
  --link-hover: #8fd3ee;
  --primary: #49afd9;
  --primary-hover: #7cc9e6;
  --nav-hover: #1f313a;
  --nav-active-bg: #234252;
  --header-bg: #0e161b;
  --inline-code-bg: #26383f;
  --inline-code-text: #f2a3c4;
  --info-bg: #16384a;  --warn-bg: #4a3a12;  --ok-bg: #1d3a15;  --danger-bg: #4a1c18;
  --code-bg: #0b1114;
  --code-bar: #18232a;
  --code-border: #2b3d46;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 16px/1.65 var(--font); -webkit-font-smoothing: antialiased;
}
a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
img, video, iframe { max-width: 100%; height: auto; }
h1, h2, h3, h4, h5, h6 { font-weight: 500; line-height: 1.25; margin: 2rem 0 .75rem; }
h1 { font-size: 2rem; margin-top: 0; }
h2 { font-size: 1.5rem; padding-bottom: .35rem; border-bottom: 1px solid var(--border); }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.05rem; }
hr { border: 0; border-top: 1px solid var(--border); margin: 2rem 0; }
.screen-reader-text { position: absolute !important; clip: rect(1px,1px,1px,1px); width: 1px; height: 1px; overflow: hidden; }
.skip-link:focus { clip: auto; width: auto; height: auto; background: var(--surface); padding: .5rem 1rem; z-index: 300; top: 4px; left: 4px; }

/* ---------- Header ---------- */
.app-header {
  position: fixed; inset: 0 0 auto 0; height: var(--header-h); z-index: 100;
  display: flex; align-items: center; gap: .5rem; padding: 0 1rem 0 .5rem;
  background: var(--header-bg); color: #fff; border-bottom: 1px solid rgba(255,255,255,.08);
}
.app-header a { color: #fff; }
.app-header a:hover { text-decoration: none; }
.hdr-btn {
  display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px;
  background: transparent; border: 0; border-radius: 4px; color: #fff; cursor: pointer;
}
.hdr-btn:hover { background: rgba(255,255,255,.12); }
.hdr-btn svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.brand { display: flex; align-items: center; gap: .6rem; font-size: 1.15rem; font-weight: 500; letter-spacing: .01em; }
.brand .custom-logo-link { display: inline-flex; background: #fff; border-radius: 4px; padding: 2px; }
.brand img.custom-logo { height: 30px; width: auto; display: block; }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 4px; background: #0072a3; font-weight: 600; font-size: .85rem; }
.brand-tag { color: #a9b9c0; font-size: .85rem; padding-left: .85rem; margin-left: .35rem; border-left: 1px solid rgba(255,255,255,.2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hdr-spacer { flex: 1; }
.search { display: flex; align-items: center; background: rgba(255,255,255,.1); border-radius: 4px; }
.search:focus-within { background: rgba(255,255,255,.18); }
.search input[type="search"] { background: transparent; border: 0; color: #fff; font: inherit; font-size: .9rem; padding: .45rem .25rem .45rem .75rem; width: 220px; outline: none; }
.search input::placeholder { color: #a9b9c0; }
.search button { background: transparent; border: 0; color: #fff; padding: 0 .65rem; height: 34px; cursor: pointer; }
.search button svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 2; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ---------- Shell + side nav ---------- */
.app-shell { display: flex; padding-top: var(--header-h); min-height: 100vh; }
.sidenav {
  flex: 0 0 var(--nav-w); width: var(--nav-w); position: sticky; top: var(--header-h);
  height: calc(100vh - var(--header-h)); overflow-y: auto; background: var(--nav-bg);
  border-right: 1px solid var(--border); padding: .5rem 0 2rem; font-size: .92rem;
}
body.nav-collapsed .sidenav { display: none; }
.sidenav a { display: block; color: var(--text); }
.sidenav a:hover { background: var(--nav-hover); text-decoration: none; }
.nav-home { padding: .55rem 1.25rem; font-weight: 500; border-left: 3px solid transparent; }
.nav-group { border-top: 1px solid var(--border); margin-top: .5rem; }
.nav-group summary {
  list-style: none; cursor: pointer; padding: .7rem 1.25rem; font-weight: 600; color: var(--muted);
  display: flex; align-items: center; justify-content: space-between; user-select: none;
}
.nav-group summary::-webkit-details-marker { display: none; }
.nav-group summary::after { content: ""; width: 7px; height: 7px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(-45deg); transition: transform .15s; }
.nav-group[open] > summary::after { transform: rotate(45deg); }
.nav-group summary:hover { background: var(--nav-hover); }
.nav-list { list-style: none; margin: 0; padding: 0 0 .35rem; }
.nav-list li { margin: 0; }
.nav-list a { padding: .4rem 1.25rem .4rem 1.75rem; border-left: 3px solid transparent; }
.nav-list .count { color: var(--muted); font-size: .8rem; margin-left: .25rem; }
.nav-list a.is-active, .nav-home.is-active, .nav-list .current-menu-item > a, .nav-list .current_page_item > a {
  background: var(--nav-active-bg); border-left-color: var(--primary); font-weight: 600;
}
.nav-list.recent a { line-height: 1.35; padding-top: .5rem; padding-bottom: .5rem; }
.nav-list .children { list-style: none; padding-left: .75rem; margin: 0; }
.nav-overlay { display: none; }

/* ---------- Main ---------- */
.main { flex: 1; min-width: 0; padding: 1.5rem clamp(1rem, 2.5vw, 2.5rem) 3rem; }
.content { max-width: 1500px; margin: 0 auto; }
.breadcrumbs { font-size: .85rem; color: var(--muted); margin-bottom: 1rem; }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs span.sep { margin: 0 .4rem; opacity: .6; }
.page-header { margin-bottom: 1.25rem; }
.page-header h1 { margin-bottom: .25rem; }
.page-header p { margin: 0; color: var(--muted); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 3px; }
.card-block { padding: 1.25rem 1.5rem; }
.post-card { margin-bottom: 1rem; display: flex; flex-direction: column; }
.post-card .card-title { margin: 0 0 .5rem; font-size: 1.4rem; padding: 0; border: 0; }
.post-card .card-title a { color: var(--text); }
.post-card .card-title a:hover { color: var(--link); }
.card-text { color: var(--text); margin: .75rem 0 0; max-width: 110ch; }
.card-footer { border-top: 1px solid var(--border); padding: .6rem 1.5rem; display: flex; gap: 1rem; align-items: center; font-size: .85rem; color: var(--muted); }
.card-footer .spacer { flex: 1; }
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem .85rem; font-size: .85rem; color: var(--muted); }
.post-meta a { color: var(--muted); }
.post-meta .labels { display: inline-flex; gap: .35rem; flex-wrap: wrap; }

/* Labels (Clarity-style) */
.label { display: inline-block; font-size: .72rem; line-height: 1; padding: .3rem .55rem; border-radius: 2px; border: 1px solid; font-weight: 500; white-space: nowrap; }
.label:hover { text-decoration: none; filter: brightness(.95); }
.label--blue   { color: #00567a; background: #d9f0fa; border-color: #8fcde8; }
.label--green  { color: #2c5a15; background: #dff0d8; border-color: #9fcb88; }
.label--purple { color: #5a3a8c; background: #ece4f8; border-color: #bba5e0; }
.label--orange { color: #8a4b00; background: #fdebd0; border-color: #e8b36e; }
.label--gray   { color: #444;    background: #e8e8e8; border-color: #bbb; }
:root[data-theme="dark"] .label--blue   { color: #a6e0f5; background: #123a4d; border-color: #1f6a8c; }
:root[data-theme="dark"] .label--green  { color: #b9e6a3; background: #1d3a15; border-color: #3f7a29; }
:root[data-theme="dark"] .label--purple { color: #d3c2f3; background: #2f2347; border-color: #5d4390; }
:root[data-theme="dark"] .label--orange { color: #f6cf98; background: #46300f; border-color: #8c5d1c; }
:root[data-theme="dark"] .label--gray   { color: #ddd;    background: #333;    border-color: #555; }

/* Buttons */
.btn { display: inline-block; font: 500 .85rem var(--font); padding: .45rem 1rem; border-radius: 3px; border: 1px solid var(--primary); color: var(--primary); background: transparent; cursor: pointer; }
.btn:hover { background: var(--primary); color: #fff; text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }

/* ---------- Article content ---------- */
.single-card .card-block { padding: 1.5rem clamp(1rem, 2.5vw, 2.5rem) 2rem; }
.entry-content > *:first-child { margin-top: 0; }
.entry-content p, .entry-content ul, .entry-content ol, .entry-content blockquote, .entry-content .alert { max-width: 115ch; }
.entry-content ul, .entry-content ol { padding-left: 1.6rem; }
.entry-content li { margin: .25rem 0; }
.entry-content li > ul, .entry-content li > ol { margin: .25rem 0; }
.entry-content figure { margin: 1.25rem 0; }
.entry-content figcaption { font-size: .85rem; color: var(--muted); margin-top: .35rem; }
.entry-content .alignwide, .entry-content .alignfull { max-width: none; }

/* Inline code */
:not(pre) > code {
  font: .88em var(--mono); background: var(--inline-code-bg); color: var(--inline-code-text);
  padding: .12em .4em; border-radius: 3px; word-break: break-word;
}

/* Code blocks: always dark for contrast, in both themes */
.code-block { margin: 1.25rem 0; border: 1px solid var(--code-border); border-radius: 6px; background: var(--code-bg); overflow: hidden; max-width: 100%; }
.code-bar { display: flex; align-items: center; gap: .5rem; padding: .3rem .5rem .3rem .9rem; background: var(--code-bar); border-bottom: 1px solid var(--code-border); color: var(--code-muted); font: .75rem var(--font); }
.code-lang { flex: 1; }
.code-btn { background: transparent; border: 1px solid transparent; color: var(--code-muted); font: inherit; padding: .25rem .6rem; border-radius: 4px; cursor: pointer; }
.code-btn:hover { color: #fff; border-color: var(--code-border); background: rgba(255,255,255,.06); }
.code-btn.is-done { color: #7fd36b; }
.code-block pre, .entry-content pre {
  margin: 0; padding: 1rem 1.15rem; overflow-x: auto; background: var(--code-bg); color: var(--code-text);
  font: 13.5px/1.6 var(--mono); tab-size: 4; border-radius: 0;
}
.entry-content > pre { margin: 1.25rem 0; border-radius: 6px; border: 1px solid var(--code-border); }
.code-block pre code { font: inherit; background: none; color: inherit; padding: 0; white-space: pre; word-break: normal; }
.code-block.is-wrapped pre code { white-space: pre-wrap; word-break: break-word; }
.code-block pre::-webkit-scrollbar { height: 10px; }
.code-block pre::-webkit-scrollbar-thumb { background: #4a5a62; border-radius: 5px; }
.tok-c { color: #7f8f96; font-style: italic; }
.tok-s { color: #a5d98c; }
.tok-v { color: #7fcfff; }
.tok-p { color: #f0b972; }
.tok-f { color: #d8a8ff; }

/* Alerts (Clarity-style): blockquotes + group block styles */
.entry-content blockquote, .entry-content .alert, .entry-content .is-style-alert-info,
.entry-content .is-style-alert-warning, .entry-content .is-style-alert-success, .entry-content .is-style-alert-danger {
  margin: 1.25rem 0; padding: .85rem 1.15rem; background: var(--info-bg); border-left: 4px solid var(--info-edge); border-radius: 2px;
}
.entry-content blockquote > :first-child, .entry-content .alert > :first-child { margin-top: 0; }
.entry-content blockquote > :last-child, .entry-content .alert > :last-child { margin-bottom: 0; }
.entry-content blockquote p { margin: .4rem 0; }
.entry-content .is-style-alert-warning, .entry-content .alert-warning { background: var(--warn-bg); border-left-color: var(--warn-edge); }
.entry-content .is-style-alert-success, .entry-content .alert-success { background: var(--ok-bg); border-left-color: var(--ok-edge); }
.entry-content .is-style-alert-danger,  .entry-content .alert-danger  { background: var(--danger-bg); border-left-color: var(--danger-edge); }

/* Tables */
.entry-content .wp-block-table, .entry-content .table-wrap { overflow-x: auto; margin: 1.25rem 0; }
.entry-content table { border-collapse: collapse; width: 100%; font-size: .92rem; }
.entry-content th, .entry-content td { text-align: left; padding: .55rem .8rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.entry-content thead th { background: var(--nav-bg); border-bottom: 2px solid var(--border); font-weight: 600; }
.entry-content tbody tr:hover { background: var(--nav-hover); }

/* ---------- Pagination, post nav, comments ---------- */
.pagination { margin: 1.5rem 0; }
.pagination .nav-links { display: flex; flex-wrap: wrap; gap: .35rem; align-items: center; }
.pagination .page-numbers { padding: .4rem .8rem; border: 1px solid var(--border); border-radius: 3px; background: var(--surface); color: var(--text); font-size: .9rem; }
.pagination a.page-numbers:hover { background: var(--nav-hover); text-decoration: none; }
.pagination .page-numbers.current { background: var(--primary); border-color: var(--primary); color: #fff; }
.pagination .dots { border: 0; background: transparent; }
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.25rem 0; }
.post-nav a { display: block; padding: 1rem 1.25rem; background: var(--surface); border: 1px solid var(--border); border-radius: 3px; color: var(--text); }
.post-nav a:hover { border-color: var(--primary); text-decoration: none; }
.post-nav small { display: block; color: var(--muted); }
.post-nav .next { text-align: right; grid-column: 2; }
.tag-list { margin-top: 1.5rem; display: flex; gap: .4rem; flex-wrap: wrap; }
.comments-area { margin-top: 1.5rem; }
.comments-area .card-block h2, .comments-area h3 { margin-top: 0; }
.comment-list { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.comment-list .children { list-style: none; padding-left: 1.5rem; border-left: 2px solid var(--border); margin-left: .5rem; }
.comment-body { padding: .85rem 0; border-bottom: 1px solid var(--border); }
.comment-meta { font-size: .85rem; color: var(--muted); }
.comment-author .avatar { border-radius: 50%; vertical-align: middle; margin-right: .5rem; }
.comment-form label { display: block; font-weight: 500; margin-bottom: .25rem; }
.comment-form input[type="text"], .comment-form input[type="email"], .comment-form input[type="url"], .comment-form textarea {
  width: 100%; max-width: 640px; padding: .5rem .65rem; font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: 3px;
}
.comment-form .submit { background: var(--primary); color: #fff; border: 0; padding: .55rem 1.25rem; border-radius: 3px; font: 500 .9rem var(--font); cursor: pointer; }
.comment-form .submit:hover { background: var(--primary-hover); }

.site-footer { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--border); color: var(--muted); font-size: .82rem; }

/* ---------- Responsive ---------- */
@media (max-width: 991px) {
  .brand-tag { display: none; }
  .sidenav { position: fixed; top: var(--header-h); left: 0; bottom: 0; z-index: 90; transform: translateX(-100%); transition: transform .2s; box-shadow: 2px 0 12px rgba(0,0,0,.25); }
  body.nav-collapsed .sidenav { display: block; }
  body.nav-open .sidenav { transform: none; }
  body.nav-open .nav-overlay { display: block; position: fixed; inset: var(--header-h) 0 0 0; background: rgba(0,0,0,.4); z-index: 80; }
}
@media (max-width: 600px) {
  .search input[type="search"] { width: 110px; }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav .next { grid-column: 1; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
@media (min-width: 992px) { .pre-collapsed .sidenav { display: none; } }