/* Public guides (/huong-dan). Builds on public-features.css variables and components. */

.pg-page .pf-page-kicker[data-accent="blue"] { color: var(--pf-blue); }
.pg-page .pf-page-kicker[data-accent="green"] { color: var(--pf-green); }
.pg-page .pf-page-kicker[data-accent="orange"] { color: var(--pf-orange); }

/* ---------- Hub ---------- */
.pg-hub-hero {
  padding: 46px 0 64px;
  border-bottom: 1px solid var(--pf-line);
  background: #faf7ff;
}

.pg-hub-hero h1 {
  max-width: 820px;
  margin: 0;
  color: var(--pf-ink);
  font-size: 46px;
  font-weight: 850;
  line-height: 1.1;
}

.pg-hub-hero p {
  max-width: 720px;
  margin: 20px 0 0;
  color: var(--pf-muted);
  font-size: 18px;
  line-height: 1.75;
}

.pg-stages {
  display: grid;
  gap: 56px;
}

.pg-stage {
  display: grid;
  gap: 40px;
  grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr);
  align-items: start;
}

.pg-stage-head {
  position: sticky;
  top: 96px;
}

.pg-stage-number {
  color: var(--pf-violet);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.pg-stage-head h2 {
  margin: 8px 0 10px;
  color: var(--pf-ink);
  font-size: 28px;
  font-weight: 800;
  line-height: 1.2;
}

.pg-stage-head p {
  margin: 0;
  color: var(--pf-muted);
  font-size: 15px;
  line-height: 1.7;
}

.pg-path {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pg-path-item {
  display: grid;
  gap: 18px;
  padding: 18px 20px;
  border: 1px solid var(--pf-line);
  border-radius: 8px;
  background: #fff;
  color: var(--pf-ink);
  text-decoration: none;
  grid-template-columns: 44px minmax(0, 1fr) 20px;
  align-items: center;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.pg-path-item:hover {
  border-color: #c9b6f5;
  box-shadow: 0 10px 28px rgba(17, 19, 24, .07);
  transform: translateY(-2px);
}

.pg-path-step {
  display: inline-flex;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--pf-violet-soft);
  color: var(--pf-violet);
  font-size: 17px;
  font-weight: 850;
  align-items: center;
  justify-content: center;
}

.pg-path-item[data-accent="blue"] .pg-path-step { background: var(--pf-blue-soft); color: var(--pf-blue); }
.pg-path-item[data-accent="green"] .pg-path-step { background: var(--pf-green-soft); color: var(--pf-green); }
.pg-path-item[data-accent="orange"] .pg-path-step { background: var(--pf-orange-soft); color: var(--pf-orange); }

.pg-path-copy strong {
  display: block;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.35;
}

.pg-path-copy span {
  display: block;
  margin-top: 4px;
  color: var(--pf-muted);
  font-size: 14px;
  line-height: 1.6;
}

.pg-path-item > i {
  color: var(--pf-violet);
  font-size: 20px;
}

/* ---------- Article header ---------- */
.pg-article-head {
  padding: 36px 0 40px;
  border-bottom: 1px solid var(--pf-line);
}

.pg-article-head-inner {
  max-width: 900px;
}

.pg-article-head h1 {
  margin: 0;
  color: var(--pf-ink);
  font-size: 42px;
  font-weight: 850;
  line-height: 1.15;
}

.pg-lead {
  margin: 18px 0 0;
  color: var(--pf-muted);
  font-size: 18px;
  line-height: 1.75;
}

.pg-meta {
  display: flex;
  gap: 8px 22px;
  margin: 22px 0 0;
  padding: 0;
  color: #535a67;
  font-size: 14px;
  list-style: none;
  flex-wrap: wrap;
}

.pg-meta li {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

.pg-meta i {
  color: var(--pf-violet);
  font-size: 17px;
}

/* ---------- Article layout ---------- */
.pg-layout {
  display: grid;
  gap: 56px;
  padding: 40px 0 72px;
  grid-template-columns: 250px minmax(0, 1fr);
  align-items: start;
}

.pg-toc {
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.pg-toc-title {
  margin: 0 0 12px;
  color: var(--pf-ink);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.pg-toc ol {
  margin: 0;
  padding: 0 0 0 14px;
  border-left: 2px solid var(--pf-line);
  list-style: none;
}

.pg-toc li + li {
  margin-top: 10px;
}

.pg-toc a {
  display: block;
  color: #535a67;
  font-size: 14px;
  line-height: 1.45;
  text-decoration: none;
}

.pg-toc a:hover {
  color: var(--pf-violet);
}

.pg-content {
  max-width: 780px;
  min-width: 0;
}

.pg-summary {
  padding: 22px 26px;
  border: 1px solid #ddd0fb;
  border-radius: 8px;
  background: var(--pf-violet-soft);
}

.pg-summary h2 {
  display: flex;
  gap: 8px;
  margin: 0 0 12px;
  color: var(--pf-violet);
  font-size: 18px;
  font-weight: 800;
  align-items: center;
}

.pg-summary ul {
  margin: 0;
  padding-left: 20px;
}

.pg-summary li {
  color: #2b2f38;
  font-size: 16px;
  line-height: 1.65;
}

.pg-summary li + li {
  margin-top: 6px;
}

/* ---------- Prose ---------- */
.pg-prose {
  color: #2b2f38;
  font-size: 17px;
  line-height: 1.8;
}

.pg-prose h2 {
  margin: 52px 0 16px;
  color: var(--pf-ink);
  font-size: 30px;
  font-weight: 800;
  line-height: 1.25;
  scroll-margin-top: 90px;
}

.pg-prose h3 {
  margin: 32px 0 10px;
  color: var(--pf-ink);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.35;
}

.pg-prose p {
  margin: 0 0 18px;
}

.pg-prose ul,
.pg-prose ol {
  margin: 0 0 20px;
  padding-left: 24px;
}

.pg-prose li + li {
  margin-top: 8px;
}

.pg-prose a {
  color: var(--pf-violet);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.pg-prose strong {
  color: var(--pf-ink);
}

.pg-prose code {
  padding: 2px 6px;
  border-radius: 5px;
  background: #f1f2f5;
  color: #1f2430;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: .88em;
}

.pg-code {
  margin: 0 0 22px;
  padding: 18px 20px;
  overflow-x: auto;
  border-radius: 8px;
  background: #111318;
  color: #e9e6f5;
  font-size: 14px;
  line-height: 1.65;
}

.pg-prose .pg-code code {
  padding: 0;
  background: transparent;
  color: inherit;
  font-size: inherit;
  white-space: pre;
}

.pg-formula {
  margin: 0 0 22px;
  padding: 16px 20px;
  overflow-x: auto;
  border: 1px solid var(--pf-line);
  border-left: 4px solid var(--pf-violet);
  border-radius: 8px;
  background: var(--pf-surface);
  color: var(--pf-ink);
  font-family: Cambria, "Times New Roman", serif;
  font-size: 19px;
  text-align: center;
}

.pg-table {
  margin: 0 0 24px;
  overflow-x: auto;
  border: 1px solid var(--pf-line);
  border-radius: 8px;
}

.pg-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.55;
}

.pg-table caption {
  padding: 12px 16px;
  color: var(--pf-muted);
  font-size: 14px;
  text-align: left;
  caption-side: top;
}

.pg-table th,
.pg-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--pf-line);
  text-align: left;
  vertical-align: top;
}

.pg-table th {
  background: var(--pf-surface);
  color: var(--pf-ink);
  font-weight: 800;
  white-space: nowrap;
}

.pg-table tbody tr:last-child td {
  border-bottom: 0;
}

.pg-callout {
  margin: 0 0 24px;
  padding: 18px 22px;
  border: 1px solid var(--pf-line);
  border-left: 4px solid var(--pf-blue);
  border-radius: 8px;
  background: var(--pf-blue-soft);
}

.pg-callout--note {
  border-left-color: var(--pf-orange);
  background: var(--pf-orange-soft);
}

.pg-callout--tip {
  border-left-color: var(--pf-green);
  background: var(--pf-green-soft);
}

.pg-callout--example {
  border-left-color: var(--pf-violet);
  background: var(--pf-violet-soft);
}

.pg-prose .pg-callout p {
  margin-bottom: 10px;
}

.pg-prose .pg-callout > :last-child {
  margin-bottom: 0;
}

.pg-prose .pg-callout-title {
  margin-bottom: 6px;
  color: var(--pf-ink);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
}

.pg-checklist {
  padding-left: 0 !important;
  list-style: none;
}

.pg-checklist li {
  position: relative;
  padding-left: 32px;
}

.pg-checklist li::before {
  position: absolute;
  top: 1px;
  left: 0;
  color: var(--pf-green);
  font-family: tabler-icons;
  font-size: 21px;
  content: "\ea5e";
}

.pg-figure {
  margin: 0 0 26px;
  padding: 20px;
  border: 1px solid var(--pf-line);
  border-radius: 8px;
  background: #fff;
}

.pg-figure svg {
  display: block;
  width: 100%;
  height: auto;
}

.pg-figure figcaption {
  margin-top: 12px;
  color: var(--pf-muted);
  font-size: 14px;
  line-height: 1.6;
  text-align: center;
}

/* ---------- After the body ---------- */
.pg-tool {
  display: flex;
  gap: 24px;
  margin: 44px 0 0;
  padding: 24px 26px;
  border-radius: 8px;
  background: #111318;
  color: #d8dbe2;
  align-items: center;
  justify-content: space-between;
}

.pg-tool p {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.6;
}

.pg-tool .pg-tool-kicker {
  margin: 0;
  color: #c4b5fd;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.pg-tool .pg-tool-title {
  color: #fff;
  font-size: 20px;
  font-weight: 800;
}

.pg-tool .pf-button {
  flex: 0 0 auto;
}

.pg-faq,
.pg-sources {
  margin-top: 52px;
}

.pg-faq h2,
.pg-sources h2 {
  margin: 0;
  color: var(--pf-ink);
  font-size: 28px;
  font-weight: 800;
  scroll-margin-top: 90px;
}

.pg-faq .pf-faq-list {
  max-width: none;
  margin-top: 18px;
}

.pg-sources ol {
  margin: 16px 0 0;
  padding-left: 22px;
  color: #3b414d;
  font-size: 14px;
  line-height: 1.7;
}

.pg-sources li + li {
  margin-top: 6px;
}

.pg-sources-note {
  margin: 16px 0 0;
  color: var(--pf-muted);
  font-size: 14px;
  line-height: 1.6;
}

.pg-pager {
  display: grid;
  gap: 14px;
  margin-top: 52px;
  grid-template-columns: 1fr 1fr;
}

.pg-pager-link {
  display: block;
  padding: 18px 20px;
  border: 1px solid var(--pf-line);
  border-radius: 8px;
  color: var(--pf-ink);
  text-decoration: none;
  transition: border-color .2s ease;
}

.pg-pager-link:hover {
  border-color: var(--pf-violet);
}

.pg-pager-link--next {
  text-align: right;
}

.pg-pager-link small {
  display: block;
  color: var(--pf-violet);
  font-size: 13px;
  font-weight: 800;
}

.pg-pager-link span {
  display: block;
  margin-top: 6px;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.4;
}

.pg-card-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pg-card {
  display: block;
  padding: 22px;
  border: 1px solid var(--pf-line);
  border-radius: 8px;
  background: #fff;
  color: var(--pf-ink);
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}

.pg-card:hover {
  box-shadow: 0 12px 30px rgba(17, 19, 24, .08);
  transform: translateY(-3px);
}

.pg-card-icon {
  display: inline-flex;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  border-radius: 8px;
  background: var(--pf-violet-soft);
  color: var(--pf-violet);
  font-size: 22px;
  align-items: center;
  justify-content: center;
}

.pg-card[data-accent="blue"] .pg-card-icon { background: var(--pf-blue-soft); color: var(--pf-blue); }
.pg-card[data-accent="green"] .pg-card-icon { background: var(--pf-green-soft); color: var(--pf-green); }
.pg-card[data-accent="orange"] .pg-card-icon { background: var(--pf-orange-soft); color: var(--pf-orange); }

.pg-card small {
  display: block;
  color: var(--pf-muted);
  font-size: 13px;
  font-weight: 700;
}

.pg-card h3 {
  margin: 4px 0 8px;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
}

.pg-card p {
  margin: 0;
  color: var(--pf-muted);
  font-size: 14px;
  line-height: 1.65;
}

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .pg-layout {
    gap: 28px;
    grid-template-columns: minmax(0, 1fr);
  }

  .pg-toc {
    position: static;
    max-height: none;
    padding: 18px 20px;
    border: 1px solid var(--pf-line);
    border-radius: 8px;
    background: var(--pf-surface);
  }

  .pg-content {
    max-width: none;
  }

  .pg-stage {
    gap: 20px;
    grid-template-columns: minmax(0, 1fr);
  }

  .pg-stage-head {
    position: static;
  }
}

@media (max-width: 720px) {
  .pg-hub-hero h1,
  .pg-article-head h1 {
    font-size: 31px;
  }

  .pg-hub-hero p,
  .pg-lead {
    font-size: 16px;
  }

  .pg-prose {
    font-size: 16px;
  }

  .pg-prose h2 {
    font-size: 24px;
  }

  .pg-prose h3 {
    font-size: 19px;
  }

  .pg-tool {
    align-items: flex-start;
    flex-direction: column;
  }

  .pg-pager,
  .pg-card-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .pg-path-item {
    gap: 14px;
    padding: 16px;
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .pg-path-step {
    width: 38px;
    height: 38px;
  }

  .pg-path-item > i {
    display: none;
  }

  .pg-table th {
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pg-path-item,
  .pg-card {
    transition: none;
  }
}