/*
 * Tutorial Series — scoped styling.
 * Only enqueued on a single post that belongs to a series, or on the
 * series landing page (taxonomy-tutorial_series.php). Reuses the theme's
 * existing HSL design tokens from style.css so it stays on-brand in both
 * light and dark mode without redefining any colors here.
 */

/* --- Series badge (replaces/augments the category eyebrow on single.php) */
.openpress-series-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: hsl(var(--accent));
}
.openpress-series-progress-text {
  color: hsl(var(--muted-foreground));
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
}

/* --- Difficulty badge (series term meta) — hub cards, series landing
   header, single.php sidenav header. Neutral border by default; a
   small color cue per level keeps the monochrome theme intact while
   still being scannable at a glance. --- */
.openpress-series-difficulty-badge {
  display: inline-flex;
  align-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid hsl(var(--border));
  color: hsl(var(--muted-foreground));
  margin-left: 0.35rem;
}
.openpress-series-difficulty-badge--beginner {
  border-color: hsl(142 71% 45% / 0.4);
  color: hsl(142 71% 30%);
}
.openpress-series-difficulty-badge--intermediate {
  border-color: hsl(38 92% 50% / 0.4);
  color: hsl(32 81% 35%);
}
.openpress-series-difficulty-badge--advanced {
  border-color: hsl(0 72% 51% / 0.4);
  color: hsl(0 65% 40%);
}

/* --- Prerequisites line — series landing header + single.php sidenav
   header. --- */
.openpress-series-prerequisites {
  font-size: 0.8125rem;
  color: hsl(var(--muted-foreground));
  margin-top: 0.5rem;
}
.openpress-series-prerequisites strong {
  color: hsl(var(--foreground));
  font-weight: 600;
}

/* --- Resources box — single.php left column, below the series nav.
   This part's own downloadable resources only (code samples, cheat
   sheets), not the whole series' — set per-post via the repeater in
   the "Tutorial Series" metabox. --- */
.openpress-series-resources {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid hsl(var(--border));
}
.openpress-series-resources .eyebrow {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}
.openpress-series-resources ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.openpress-series-resources li + li {
  margin-top: 0.5rem;
}
.openpress-series-resources a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: hsl(var(--foreground) / 0.85);
  text-decoration: none;
  border: 1px solid hsl(var(--border));
  border-radius: 0.3125rem;
  padding: 0.5rem 0.75rem;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.openpress-series-resources a:hover {
  border-color: hsl(var(--accent));
  color: hsl(var(--accent));
}

/* --- Series sidebar navigation (single.php left column for tutorial
   posts — replaces the typical right widget sidebar entirely). --- */
.openpress-series-sidenav {
  position: sticky;
  top: 6rem;
  max-height: calc(100vh - 8rem);
  overflow-y: auto;
}
.openpress-series-sidenav-header {
  padding-bottom: 1rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid hsl(var(--border));
}
.openpress-series-sidenav-header .eyebrow {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.openpress-series-sidenav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.openpress-series-sidenav-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.openpress-series-sidenav-item a {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.55rem 0;
  font-size: 0.9rem;
  color: hsl(var(--foreground) / 0.8);
  text-decoration: none;
  line-height: 1.35;
  flex: 1 1 auto;
  min-width: 0;
}
.openpress-series-sidenav-item a:hover { color: hsl(var(--accent)); }
/* Parts before the one you're reading — completed. */
.openpress-series-sidenav-item--done .openpress-series-outline-num {
  background: hsl(var(--accent) / 0.12);
  border-color: hsl(var(--accent) / 0.4);
  color: hsl(var(--accent));
}
/* The part you're currently reading. */
.openpress-series-sidenav-item--current a {
  color: hsl(var(--foreground));
  font-weight: 600;
}
.openpress-series-sidenav-item--current .openpress-series-outline-num {
  background: hsl(var(--accent));
  border-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}
/* Shared number/check badge (also used on the series landing page list). */
.openpress-series-outline-num {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  border: 1px solid hsl(var(--border));
  color: hsl(var(--muted-foreground));
}

/* --- Mark-complete checkbox — reader's own progress, independent of
   the server-computed --done state above; toggled client-side and
   persisted to localStorage (see assets/js/tutorial-series.js). --- */
.openpress-series-sidenav-checkbox-wrap {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.125rem;
  height: 1.125rem;
  cursor: pointer;
}
.openpress-series-complete-checkbox {
  width: 1rem;
  height: 1rem;
  margin: 0;
  accent-color: hsl(var(--accent));
  cursor: pointer;
}
/* Reader-marked-complete state — checkmark styling similar to --done,
   but layered independently so it can apply to any part regardless of
   its position relative to the one currently open. */
.openpress-series-sidenav-item.is-completed .openpress-series-outline-num {
  background: hsl(var(--accent));
  border-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}
.openpress-series-sidenav-item.is-completed:not(.openpress-series-sidenav-item--current) a {
  color: hsl(var(--muted-foreground));
}
/* "Coming soon" placeholder — planned but not yet published part.
   Deliberately inert: no link, no checkbox, reduced opacity. */
.openpress-series-sidenav-item--upcoming {
  opacity: 0.55;
}
.openpress-series-sidenav-item--upcoming .openpress-series-outline-num {
  border-style: dashed;
}
.openpress-series-upcoming-label {
  padding: 0.55rem 0;
  font-size: 0.9rem;
  font-style: italic;
  color: hsl(var(--muted-foreground));
}

/* --- Series progress bar (single.php, above the title) — server
   rendered from $openpress_series, fill % = position / total. --- */
.openpress-series-progressbar {
  margin-bottom: 1.5rem;
}
.openpress-series-progressbar-label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: hsl(var(--muted-foreground));
  margin-bottom: 0.4rem;
}
.openpress-series-progressbar-track {
  display: block;
  height: 0.3rem;
  border-radius: 999px;
  background: hsl(var(--secondary));
  overflow: hidden;
}
.openpress-series-progressbar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: hsl(var(--accent));
  transition: width 0.2s ease;
}

/* --- Previous / Next tutorial navigation --- */
.openpress-tutorial-nav {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  align-items: stretch;
  gap: 1rem;
  margin-top: 3.5rem;
}
@media (max-width: 640px) {
  .openpress-tutorial-nav { grid-template-columns: 1fr; }
}
.openpress-tutorial-nav-prev {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: hsl(var(--muted-foreground));
  font-size: 0.875rem;
  border: 1px solid hsl(var(--border));
  border-radius: 0.375rem;
  padding: 0 1rem;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.openpress-tutorial-nav-prev:hover {
  border-color: hsl(var(--accent));
  color: hsl(var(--accent));
}
.openpress-tutorial-nav-next {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-content: space-between;
  text-decoration: none;
  background: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
  border-radius: 0.375rem;
  padding: 1.1rem 1.5rem;
  transition: opacity 0.15s ease;
}
.openpress-tutorial-nav-next:hover { opacity: 0.9; }
.openpress-tutorial-nav-next-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.85;
  flex-shrink: 0;
}
.openpress-tutorial-nav-next-title {
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.3;
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Series landing page (taxonomy-tutorial_series.php) --- */
.openpress-series-hub-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem 0;
  border-top: 1px solid hsl(var(--border));
}
.openpress-series-hub-item:first-child { border-top: none; padding-top: 0; }
.openpress-series-hub-num {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid hsl(var(--border));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: hsl(var(--muted-foreground));
}
/* "Coming soon" placeholder — planned but not yet published part. */
.openpress-series-hub-item--upcoming {
  opacity: 0.55;
}
.openpress-series-hub-item--upcoming .openpress-series-hub-num {
  border-style: dashed;
}

/* --- Copy-code button — tutorial single posts only, injected into
   every .openpress-article pre by assets/js/tutorial-series.js.
   padding-top only, scoped to this JS-added class, keeps clear of the
   button without redesigning <pre> styling generally (out of scope
   here — the theme doesn't define any base <pre> look elsewhere). --- */
.openpress-article .openpress-code-block-wrap {
  position: relative;
}
.openpress-article pre.openpress-code-block {
  margin: 0;
  padding-top: 2.5rem;
}
.openpress-copy-code-btn {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.6rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: hsl(var(--muted-foreground));
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 0.3125rem;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.openpress-copy-code-btn:hover {
  border-color: hsl(var(--accent));
  color: hsl(var(--accent));
}
.openpress-copy-code-btn.is-copied {
  border-color: hsl(var(--accent));
  color: hsl(var(--accent));
  background: hsl(var(--accent) / 0.1);
}

/* --- "Notify me of new parts" box — single.php (end of the latest
   published part) and the taxonomy-tutorial_series.php sidebar. Same
   warm highlighted-card treatment as the sitewide newsletter widget
   (Openpress_Widget_Newsletter in inc/class-openpress-widgets.php) so
   it reads as "one more email box", not a separate mini-feature. --- */
.openpress-series-notify {
  margin-top: 2.5rem;
  padding: 1.5rem;
  background: hsl(var(--secondary));
  border: 1px solid hsl(var(--border));
  border-radius: 0.5rem;
}
.openpress-series-notify .eyebrow {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.openpress-series-notify-status {
  font-size: 0.75rem;
  margin-top: 0.75rem;
}
.openpress-series-notify-status.hidden { display: none; }
.openpress-series-notify-status.is-success { color: hsl(var(--accent)); }
.openpress-series-notify-status.is-error { color: hsl(0 72% 51%); }

/* --- "You might also like" cross-series recommendation — single.php,
   shown alongside the notify box once a reader has caught up to a
   series' latest published part. Deliberately card-styled like a hub
   item rather than plain text, so it reads as a real next step and
   not an afterthought. --- */
.openpress-series-crosslink {
  margin-top: 1.5rem;
}
.openpress-series-crosslink > .eyebrow {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}
.openpress-series-crosslink-card {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  text-decoration: none;
  border: 1px solid hsl(var(--border));
  border-radius: 0.5rem;
  padding: 1rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.openpress-series-crosslink-card:hover {
  border-color: hsl(var(--accent));
  background: hsl(var(--secondary) / 0.5);
}
.openpress-series-crosslink-thumb {
  flex-shrink: 0;
  width: 6.5rem;
  height: 6.5rem;
  border-radius: 0.375rem;
  overflow: hidden;
}
.openpress-series-crosslink-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.openpress-series-crosslink-body { min-width: 0; }
.openpress-series-crosslink-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: hsl(var(--accent));
}

/* --- Start Series / Continue CTA — hub cards + series landing page
   header. Server-rendered as "Start Series" -> part 1; swapped to
   "Continue — Part X" client-side when localStorage shows progress
   (see assets/js/tutorial-series.js). Base layout only here — the two
   surfaces style color/size themselves via Tailwind utility classes
   in-template, same convention as the rest of the theme's CTAs. --- */
.openpress-series-cta {
  text-decoration: none;
}

/* =====================================================================
   Tutorial "lesson" mode — single.php header, sidebar, and article
   content look distinctly different from a regular news post, while
   staying inside the theme's own tokens/fonts. The signature move is
   the numbered-lesson identity (big numeral in the header, matching
   circle badges everywhere a part is referenced) since Tutorial Series
   content is a genuine ordered sequence — see the sidenav/hub numbering
   this already leans on above.
   ===================================================================== */

/* --- Header: big lesson numeral beside the title --- */
.openpress-tutorial-title-row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1rem;
}
.openpress-tutorial-num {
  flex-shrink: 0;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 2.75rem;
  line-height: 1;
  color: hsl(var(--accent) / 0.35);
}
@media (max-width: 640px) {
  .openpress-tutorial-title-row { flex-direction: column; gap: 0.25rem; }
  .openpress-tutorial-num { font-size: 1.75rem; color: hsl(var(--accent)); }
}
/* Byline row de-emphasized for tutorials — author/date matter less
   here than "which lesson am I on", which the meta row above already
   covers prominently. */
.openpress-tutorial-byline {
  opacity: 0.75;
  font-size: 0.9em;
}

/* --- Sidebar: denser "docs nav" feel — accent bar + tint on the
   active row instead of just a text-color change. --- */
.openpress-series-sidenav-item {
  border-radius: 0.25rem;
  border-left: 2px solid transparent;
  padding-left: 0.6rem;
  margin-left: -0.6rem;
}
.openpress-series-sidenav-item a { padding: 0.4rem 0; }
.openpress-series-sidenav-item--current {
  border-left-color: hsl(var(--accent));
  background: hsl(var(--accent) / 0.08);
}

/* --- Content: docs-style headings instead of the editorial serif
   treatment normal articles get. Higher-specificity selectors so this
   reliably wins over the base .openpress-article rules regardless of
   stylesheet load order. --- */
article.openpress-article.openpress-article--tutorial h2 {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  border-bottom: 2px solid hsl(var(--border));
  padding-bottom: 0.5rem;
}
article.openpress-article.openpress-article--tutorial h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
}
article.openpress-article.openpress-article--tutorial h4 {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: hsl(var(--muted-foreground));
}

/* --- Content: real code blocks. Deliberately dark in both light and
   dark site themes — a fixed "terminal" surface reads clearly as code
   regardless of which mode the reader's in, the same way it does on
   most documentation sites. Language label (top-left) is optional,
   populated from a `language-xxx` class on <code> by tutorial-series.js. --- */
article.openpress-article.openpress-article--tutorial pre {
  position: relative;
  background: hsl(0 0% 9%);
  color: hsl(60 9% 92%);
  border: 1px solid hsl(0 0% 18%);
  border-radius: 0.5rem;
  padding: 1.25rem 1.4rem;
  overflow-x: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.83rem;
  line-height: 1.65;
}
article.openpress-article.openpress-article--tutorial pre.openpress-code-block {
  padding-top: 2.5rem;
}
article.openpress-article.openpress-article--tutorial pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
  color: inherit;
}
article.openpress-article.openpress-article--tutorial pre.openpress-code-block[data-lang]::before {
  content: attr(data-lang);
  position: absolute;
  top: 0.7rem;
  left: 1.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: hsl(60 5% 55%);
}

/* --- Content: Note / Tip / Warning callouts — a plain Quote block
   whose text starts with one of those words, detected server-side by
   OpenPress_Tutorial_Series::mark_callouts(). Standard docs-site
   semantic colors, used only here (nowhere else in the theme's
   otherwise neutral palette). --- */
article.openpress-article.openpress-article--tutorial blockquote.openpress-callout {
  font-family: 'Inter', sans-serif;
  font-style: normal;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: hsl(var(--foreground) / 0.9);
  padding: 1.1rem 1.25rem;
  border-radius: 0.375rem;
  border-left: 3px solid;
}
article.openpress-article.openpress-article--tutorial blockquote.openpress-callout p {
  margin: 0;
}
article.openpress-article.openpress-article--tutorial blockquote.openpress-callout p + p {
  margin-top: 0.6em;
}
article.openpress-article.openpress-article--tutorial blockquote.openpress-callout--note {
  border-color: hsl(210 80% 55%);
  background: hsl(210 80% 55% / 0.08);
}
article.openpress-article.openpress-article--tutorial blockquote.openpress-callout--tip {
  border-color: hsl(142 71% 40%);
  background: hsl(142 71% 40% / 0.08);
}
article.openpress-article.openpress-article--tutorial blockquote.openpress-callout--warning {
  border-color: hsl(38 92% 50%);
  background: hsl(38 92% 50% / 0.08);
}

/* --- Content: numbered steps — top-level ordered lists get circle
   badges matching the series sidenav/hub numbering, instead of plain
   decimal numerals, tying "step in this lesson" back to the same
   visual language as "part in this series". --- */
article.openpress-article.openpress-article--tutorial ol {
  list-style: none;
  padding-left: 0;
  counter-reset: openpress-step;
}
article.openpress-article.openpress-article--tutorial ol > li {
  position: relative;
  padding-left: 2.75rem;
  counter-increment: openpress-step;
}
article.openpress-article.openpress-article--tutorial ol > li::before {
  content: counter(openpress-step);
  position: absolute;
  left: 0;
  top: 0.05em;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 999px;
  border: 1px solid hsl(var(--accent) / 0.4);
  background: hsl(var(--accent) / 0.1);
  color: hsl(var(--accent));
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}