/* TaxBloc Help Centre — shared styles */
:root {
  --blue: #2F5FD1;
  --blue-dark: #1E45A8;
  --blue-light: #EEF3FF;
  --black: #0D0D0D;
  --grey: #6B7280;
  --grey-2: #9CA3AF;
  --grey-light: #F5F6F8;
  --border: #E5E7EB;
  --border-soft: #F1F2F4;
  --white: #FFFFFF;
  --green: #16A34A;
  --green-light: #DCFCE7;
  --amber: #B45309;
  --amber-light: #FEF7E0;
  --red: #DC2626;
  --bg: #FAFBFC;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Header --- */
.help-header {
  border-bottom: 1px solid var(--border);
  background: var(--white);
  position: sticky; top: 0; z-index: 50;
}
.help-header-inner {
  max-width: 1140px; margin: 0 auto;
  display: flex; align-items: center; gap: 24px;
  padding: 14px 24px;
}
.help-brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--black);
  flex-shrink: 0;
}
.help-brand-logo {
  height: 24px; width: auto; display: block;
}
.help-brand-tag {
  font-weight: 600; color: var(--grey); font-size: 14px;
  border-left: 1px solid var(--border); padding-left: 10px;
  line-height: 1;
}
.help-search {
  flex: 1; max-width: 480px;
  position: relative;
}
.help-search input {
  width: 100%; padding: 9px 12px 9px 38px;
  border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; background: var(--grey-light);
  color: var(--black); outline: none;
  transition: border-color .15s, background .15s;
}
.help-search input:focus { background: var(--white); border-color: var(--blue); }
.help-search svg {
  width: 16px; height: 16px;
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--grey);
}
.help-nav {
  display: flex; align-items: center; gap: 18px;
  font-size: 14px;
}
.help-nav a {
  color: var(--grey); text-decoration: none; font-weight: 500;
}
.help-nav a:hover, .help-nav a.active { color: var(--black); }
.help-nav .btn-back {
  padding: 7px 12px; border: 1px solid var(--border); border-radius: 7px;
  color: var(--black); font-weight: 600;
}
.help-nav .btn-back:hover { background: var(--grey-light); }

/* --- Hero --- */
.help-hero {
  background: linear-gradient(180deg, #F7F9FF 0%, var(--white) 100%);
  padding: 48px 24px 36px;
  border-bottom: 1px solid var(--border-soft);
}
.help-hero-inner {
  max-width: 880px; margin: 0 auto; text-align: center;
}
.help-hero h1 {
  font-size: 38px; font-weight: 800; letter-spacing: -1px;
  margin: 0 0 10px; color: var(--black);
}
.help-hero p {
  font-size: 17px; color: var(--grey); margin: 0 auto 24px; max-width: 560px;
}
.help-hero .help-search { margin: 0 auto; max-width: 520px; }
.help-hero .help-search input {
  font-size: 15px; padding: 12px 14px 12px 42px; background: var(--white);
  border-color: var(--border); box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

/* --- Layout --- */
.help-container {
  max-width: 1140px; margin: 0 auto;
  padding: 40px 24px 80px;
}

/* --- Category cards (index) --- */
.help-cats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 36px;
}
.help-cat {
  border: 1px solid var(--border); border-radius: 12px;
  padding: 20px 22px; background: var(--white);
  text-decoration: none; color: var(--black);
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.help-cat:hover {
  border-color: var(--blue); transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(47, 95, 209, 0.08);
}
.help-cat-icon {
  width: 36px; height: 36px; border-radius: 9px;
  background: var(--blue-light); color: var(--blue);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 12px;
}
.help-cat-icon svg { width: 18px; height: 18px; }
.help-cat h3 {
  margin: 0 0 6px; font-size: 16px; font-weight: 700;
}
.help-cat p {
  margin: 0; font-size: 14px; color: var(--grey); line-height: 1.5;
}
.help-cat-count {
  display: inline-block; margin-top: 10px;
  font-size: 12px; color: var(--grey-2); font-weight: 600;
}

/* --- Article list (used on index "Popular" + category pages) --- */
.help-list-section { margin-bottom: 36px; }
.help-list-title {
  font-size: 13px; font-weight: 800; color: var(--grey);
  letter-spacing: 0.6px; text-transform: uppercase;
  margin: 0 0 14px;
}
.help-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--border-soft); }
.help-list li { border-bottom: 1px solid var(--border-soft); }
.help-list a {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 4px; text-decoration: none; color: var(--black);
  font-size: 15px;
}
.help-list a:hover { color: var(--blue); }
.help-list a svg { width: 16px; height: 16px; color: var(--grey-2); flex-shrink: 0; }
.help-list a:hover svg { color: var(--blue); }
.help-list-meta {
  margin-left: auto; font-size: 12px; color: var(--grey-2); font-weight: 500;
}

/* --- Article page --- */
.article-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 220px;
  gap: 48px;
  max-width: 1140px; margin: 0 auto;
  padding: 40px 24px 80px;
}
@media (max-width: 960px) {
  .article-layout { grid-template-columns: 1fr; gap: 24px; padding: 24px; }
  .article-side, .article-toc { display: none; }
}
.article-side { font-size: 14px; }
.article-side-title {
  font-size: 12px; font-weight: 800; color: var(--grey);
  letter-spacing: 0.5px; text-transform: uppercase; margin: 0 0 12px;
}
.article-side ul { list-style: none; padding: 0; margin: 0; }
.article-side li { margin-bottom: 4px; }
.article-side a {
  display: block; padding: 6px 10px; border-radius: 6px;
  text-decoration: none; color: var(--grey); font-size: 14px;
}
.article-side a:hover { background: var(--grey-light); color: var(--black); }
.article-side a.active { background: var(--blue-light); color: var(--blue); font-weight: 600; }

.article-main { min-width: 0; }
.article-breadcrumb {
  font-size: 13px; color: var(--grey); margin-bottom: 14px;
}
.article-breadcrumb a { color: var(--grey); text-decoration: none; }
.article-breadcrumb a:hover { color: var(--blue); }
.article-breadcrumb .sep { margin: 0 6px; color: var(--grey-2); }

.article-main h1 {
  font-size: 32px; font-weight: 800; letter-spacing: -0.7px;
  margin: 0 0 12px; line-height: 1.2;
}
.article-meta {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-size: 13px; color: var(--grey);
  margin-bottom: 28px; padding-bottom: 20px;
  border-bottom: 1px solid var(--border-soft);
}
.article-meta .version-pill {
  display: inline-flex; align-items: center;
  background: var(--blue-light); color: var(--blue); border: 1px solid #C7D7F8;
  font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 100px;
  font-family: 'SF Mono', ui-monospace, Monaco, monospace; letter-spacing: 0.3px;
}
.article-meta .dot { color: var(--grey-2); }

.article-main h2 {
  font-size: 22px; font-weight: 700; letter-spacing: -0.3px;
  margin: 36px 0 12px; scroll-margin-top: 80px;
}
.article-main h3 { font-size: 17px; font-weight: 700; margin: 24px 0 8px; }
.article-main p { margin: 0 0 14px; color: #1F2937; }
.article-main ul, .article-main ol { padding-left: 22px; margin: 0 0 16px; }
.article-main li { margin-bottom: 6px; color: #1F2937; }
.article-main strong { color: var(--black); font-weight: 700; }
.article-main a { color: var(--blue); text-decoration: none; font-weight: 500; }
.article-main a:hover { text-decoration: underline; }
.article-main code {
  font-family: 'SF Mono', ui-monospace, Monaco, monospace;
  font-size: 13.5px; background: var(--grey-light);
  padding: 1px 6px; border-radius: 4px;
}

.article-figure {
  margin: 18px 0 22px;
  border: 1px solid var(--border); border-radius: 10px;
  overflow: hidden; background: var(--bg);
}
.article-figure img {
  display: block; width: 100%; height: auto; max-width: 100%;
}
.article-figure figcaption {
  padding: 10px 14px; font-size: 13px; color: var(--grey);
  border-top: 1px solid var(--border-soft); background: var(--white);
}

.callout {
  border-left: 3px solid var(--blue);
  background: var(--blue-light);
  padding: 12px 16px; border-radius: 0 8px 8px 0;
  margin: 18px 0;
  font-size: 14.5px; color: #1F2937;
}
.callout strong { color: var(--blue); }
.callout.warn { border-left-color: var(--amber); background: var(--amber-light); }
.callout.warn strong { color: var(--amber); }

.steps { counter-reset: step; padding: 0; list-style: none; margin: 0 0 24px; }
.steps > li {
  counter-increment: step; position: relative;
  padding: 0 0 18px 42px; margin: 0;
}
.steps > li::before {
  content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--blue); color: var(--white);
  font-weight: 700; font-size: 13px;
  display: inline-flex; align-items: center; justify-content: center;
}
.steps > li:not(:last-child)::after {
  content: ''; position: absolute; left: 13px; top: 32px; bottom: -4px;
  width: 2px; background: var(--border);
}
.steps > li > strong { display: block; font-size: 15.5px; margin-bottom: 4px; }

/* --- TOC right rail --- */
.article-toc { font-size: 13px; }
.article-toc-title {
  font-size: 12px; font-weight: 800; color: var(--grey);
  letter-spacing: 0.5px; text-transform: uppercase; margin: 0 0 12px;
}
.article-toc ul { list-style: none; padding: 0; margin: 0; border-left: 2px solid var(--border-soft); }
.article-toc li { margin: 0; }
.article-toc a {
  display: block; padding: 5px 12px; margin-left: -2px;
  border-left: 2px solid transparent;
  color: var(--grey); text-decoration: none; font-size: 13px;
  line-height: 1.4;
}
.article-toc a:hover { color: var(--black); }

/* --- Article footer (related + feedback) --- */
.article-foot {
  margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--border-soft);
}
.article-foot-title {
  font-size: 12px; font-weight: 800; color: var(--grey);
  letter-spacing: 0.5px; text-transform: uppercase; margin: 0 0 12px;
}
.related-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.related-card {
  border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 16px; text-decoration: none; color: var(--black);
}
.related-card:hover { border-color: var(--blue); }
.related-card .label { font-size: 11px; color: var(--grey); font-weight: 600; letter-spacing: 0.3px; text-transform: uppercase; }
.related-card .title { font-size: 14.5px; font-weight: 600; margin-top: 2px; }

/* --- What's new / changelog --- */
.cl-entry { margin-bottom: 36px; padding-bottom: 28px; border-bottom: 1px solid var(--border-soft); }
.cl-entry:last-child { border-bottom: none; }
.cl-entry-head {
  display: flex; align-items: center; gap: 10px; margin-bottom: 8px;
}
.cl-entry-head .version-pill {
  background: var(--grey-light); color: var(--grey); border: 1px solid var(--border);
  font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 100px;
  font-family: 'SF Mono', ui-monospace, Monaco, monospace;
}
.cl-entry-head .version-pill.current {
  background: var(--blue-light); color: var(--blue); border-color: #C7D7F8;
}
.cl-entry-head .date { font-size: 13px; color: var(--grey); }
.cl-entry h2 { font-size: 20px; font-weight: 700; margin: 0 0 8px; }
.cl-entry p { margin: 0 0 12px; color: #1F2937; font-size: 15px; }
.cl-entry ul { margin: 0 0 12px; padding-left: 20px; }
.cl-entry li { font-size: 14.5px; margin-bottom: 6px; }
.cl-tag {
  font-size: 10px; font-weight: 800; padding: 1px 6px; border-radius: 4px;
  letter-spacing: 0.3px; vertical-align: 2px; margin-right: 4px;
}
.cl-tag-new { background: var(--green-light); color: #166534; }
.cl-tag-changed { background: var(--blue-light); color: var(--blue); }
.cl-tag-removed { background: #FEE2E2; color: #991B1B; }
.cl-entry-articles {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px;
}
.cl-entry-articles a {
  font-size: 12.5px; padding: 4px 10px;
  background: var(--blue-light); color: var(--blue);
  border-radius: 100px; text-decoration: none; font-weight: 600;
}
.cl-entry-articles a:hover { background: #DCE6FA; }

/* --- Footer --- */
.help-footer {
  border-top: 1px solid var(--border-soft);
  padding: 32px 24px;
  margin-top: 60px;
  background: var(--bg);
  font-size: 13px; color: var(--grey);
  text-align: center;
}
.help-footer a { color: var(--grey); text-decoration: none; margin: 0 8px; }
.help-footer a:hover { color: var(--black); }

/* ============================================================
   Mobile responsiveness (v0.13)
   Kept at the end of the file so it always wins the cascade.
   ============================================================ */

/* Tablet and below: stack the header so brand + nav stays on row 1
   and the inline search drops to row 2. The hero already has a
   search box, so we hide the header-search on phones to save space. */
@media (max-width: 768px){
  .help-header-inner{
    padding: 10px 14px;
    gap: 10px;
    flex-wrap: wrap;
  }
  .help-brand-logo{ height: 22px; }
  .help-brand-tag{ font-size: 13px; padding-left: 8px; }
  .help-search{ order: 3; flex: 1 1 100%; max-width: none; }
  .help-search input{ padding: 8px 12px 8px 36px; font-size: 14px; }
  .help-nav{ gap: 12px; font-size: 13px; }
  .help-nav .btn-back{ padding: 6px 10px; font-size: 13px; }

  .help-hero{ padding: 32px 18px 26px; }
  .help-hero h1{ font-size: 26px; letter-spacing: -0.5px; }
  .help-hero p{ font-size: 15px; margin-bottom: 18px; }
  .help-hero .help-search input{ font-size: 15px; padding: 11px 14px 11px 40px; }

  .help-container{ padding: 24px 16px 50px; }

  .help-cats{ gap: 12px; margin-bottom: 28px; }
  .help-cat{ padding: 16px 18px; }
  .help-cat-icon{ width: 32px; height: 32px; margin-bottom: 10px; }
  .help-cat-icon svg{ width: 16px; height: 16px; }
  .help-cat h3{ font-size: 15px; }
  .help-cat p{ font-size: 13.5px; }

  .help-list a{ padding: 12px 4px; font-size: 14.5px; gap: 10px; }
  .help-list-meta{ font-size: 11.5px; }

  /* Articles */
  .article-layout{ padding: 20px 16px 50px; gap: 18px; }
  .article-main h1{ font-size: 26px; letter-spacing: -0.5px; }
  .article-main h2{ font-size: 19px; margin: 28px 0 10px; }
  .article-main h3{ font-size: 16px; }
  .article-main p, .article-main li{ font-size: 15px; }
  .article-meta{ font-size: 12.5px; gap: 8px; margin-bottom: 22px; padding-bottom: 16px; }
  .article-figure{ margin: 14px -16px 18px; border-radius: 0; border-left: none; border-right: none; }
  .article-figure figcaption{ padding: 10px 16px; }
  .callout{ padding: 11px 14px; font-size: 14px; }
  .steps > li{ padding: 0 0 16px 38px; }
  .steps > li::before{ width: 26px; height: 26px; font-size: 12px; }
  .steps > li:not(:last-child)::after{ left: 12px; }

  /* Changelog entries */
  .cl-entry h2{ font-size: 18px; }
  .cl-entry p, .cl-entry li{ font-size: 14px; }
  .cl-entry-head{ flex-wrap: wrap; }

  /* Footer */
  .help-footer{ padding: 24px 16px; line-height: 1.9; }
}

/* Phone: compact header to a single row by hiding the "Back to TaxBloc"
   button label (keep only the search and What's new). */
@media (max-width: 480px){
  .help-header-inner{ gap: 8px; padding: 9px 12px; }
  .help-nav{ gap: 10px; }
  .help-nav .btn-back{ padding: 6px 8px; }

  .help-hero{ padding: 24px 14px 20px; }
  .help-hero h1{ font-size: 22px; }
  .help-hero p{ font-size: 14px; }

  .help-container{ padding: 18px 14px 40px; }

  .article-layout{ padding: 16px 14px 40px; }
  .article-main h1{ font-size: 22px; }
  .article-main h2{ font-size: 17px; margin-top: 24px; }
  .article-figure{ margin: 12px -14px 16px; }
  .article-figure figcaption{ padding: 9px 14px; font-size: 12.5px; }

  /* Stack related cards 1-up */
  .related-grid{ grid-template-columns: 1fr; }

  /* What's new (whats-new.html) */
  .cl-entry{ margin-bottom: 28px; padding-bottom: 22px; }
  .cl-entry-articles a{ font-size: 12px; padding: 4px 9px; }
}