/* ==========================================================================
   Ionbase Blog Theme
   --------------------------------------------------------------------------
   Editorial, quiet, mobile-first. One column on a white page, everything
   aligned on a single measure.

   Layers: 1 tokens · 2 reset/base · 3 typography · 4 layout · 5 header/footer
           6 listings · 7 prose · 8 pagination · 9 utility pages · 10 responsive

   Colours come from the blog's visual tokens, emitted as --blog-primary,
   --blog-accent, --blog-title, --blog-text and --blog-border by the theme
   shell. The fallbacks in :root below are the platform brand defaults, so
   this file still renders correctly on its own.

   Shared font faces live in assets/web/public/fonts/google-fonts.css, which
   the shell links; nothing is duplicated here.
   ========================================================================== */

/* ---- Layer 1: tokens ---- */
:root {
  /* Brand tokens (overridden per blog by the shell's inline <style>). */
  --blog-primary: #1f3b69;
  --blog-accent: #e6d094;
  --blog-title: #1c355f;
  --blog-text: #30353e;
  --blog-border: #e7ebf1;

  /* Derived neutrals. */
  --blog-paper: #ffffff;
  --blog-muted: #5f6875;
  --blog-faint: #8a93a1;
  --blog-wash: #f7f8fa;
  /* Alt primary from the platform brand palette. Not one of the shell's five
     emitted tokens (full_structure.php:93), so it is fixed here rather than
     customized per blog - used only to tell the callout keywords apart. */
  --blog-alt-primary: #88a7d0;

  /* Type. 16px base, 1.25 modular scale. */
  --blog-sans: 'Public Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI',
    Roboto, Helvetica, Arial, sans-serif;
  --blog-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --fs-xs: 0.8rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5625rem;
  --fs-2xl: 1.953rem;
  --fs-3xl: 2.441rem;

  /* Rhythm. */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-7: 3rem;
  --sp-8: 4.5rem;

  --measure: 72ch;
  --gutter: 1.25rem;
  --radius: 6px;
  --t-fast: 140ms;
  --ease: cubic-bezier(0.33, 1, 0.68, 1);
}

/* ---- Layer 2: reset / base ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body.blog-body {
  margin: 0;
  background: var(--blog-paper);
  color: var(--blog-text);
  font-family: var(--blog-sans);
  font-size: var(--fs-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

/* The hidden attribute must win over any layout rule below (a class-level
   display would otherwise out-specify the UA stylesheet and show the element
   anyway - which is what the share copy button and the reply row rely on). */
[hidden] {
  display: none !important;
}

a {
  color: var(--blog-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--blog-title);
}

:focus-visible {
  outline: 2px solid var(--blog-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 50;
  padding: var(--sp-3) var(--sp-4);
  background: var(--blog-primary);
  color: #fff;
  font-size: var(--fs-sm);
  text-decoration: none;
}

.skip-link:focus {
  left: var(--sp-4);
  top: var(--sp-4);
  color: #fff;
}

main {
  flex: 1 0 auto;
}

main:focus {
  outline: none;
}

/* ---- Layer 3: typography ---- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--blog-serif);
  color: var(--blog-title);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 0;
  text-wrap: balance;
}

p {
  margin: 0;
}

/* Small, letterspaced sans labels: dates, counts, chips, nav. */
.blog-label {
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blog-faint);
}

.blog-dot {
  color: var(--blog-border);
  margin: 0 0.45em;
}

body[data-font-pair='sans'] h1,
body[data-font-pair='sans'] h2,
body[data-font-pair='sans'] h3,
body[data-font-pair='sans'] h4,
body[data-font-pair='sans'] .blog-post-summary,
body[data-font-pair='sans'] .blog-masthead-tagline,
body[data-font-pair='sans'] .prose p,
body[data-font-pair='sans'] .prose li {
  font-family: var(--blog-sans);
}

body[data-font-pair='serif'] .blog-nav,
body[data-font-pair='serif'] .blog-footer,
body[data-font-pair='serif'] .blog-post-meta {
  font-family: var(--blog-serif);
}

/* ---- Layer 4: layout ---- */
.blog-shell {
  width: min(var(--measure), 100% - (var(--gutter) * 2));
  margin-inline: auto;
}

/* ---- Layer 5: header / footer ---- */
.blog-header {
  border-bottom: 1px solid var(--blog-border);
  background: var(--blog-paper);
}

.blog-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  min-height: 4rem;
  flex-wrap: wrap;
}

.blog-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) 0;
  text-decoration: none;
  color: var(--blog-title);
}

.blog-brand-name {
  font-family: var(--blog-serif);
  font-size: var(--fs-lg);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.blog-brand:hover .blog-brand-name {
  color: var(--blog-primary);
}

.blog-nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--blog-border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--blog-title);
  font-size: 1.15rem;
  cursor: pointer;
}

.blog-nav-toggle .ti-x,
.blog-nav-toggle[aria-expanded='true'] .ti-menu-2 {
  display: none;
}

.blog-nav-toggle[aria-expanded='true'] .ti-x {
  display: inline;
}

.blog-nav {
  display: none;
  flex-basis: 100%;
  flex-direction: column;
  gap: var(--sp-1);
  padding-bottom: var(--sp-4);
}

.blog-nav[data-open='true'] {
  display: flex;
}

.blog-nav a {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) 0;
  color: var(--blog-muted);
  font-size: var(--fs-sm);
  letter-spacing: 0.02em;
  text-decoration: none;
}

.blog-nav a:hover {
  color: var(--blog-primary);
}

.blog-footer {
  margin-top: var(--sp-8);
  border-top: 1px solid var(--blog-border);
  padding: var(--sp-6) 0 var(--sp-7);
}

.blog-footer-name {
  font-family: var(--blog-serif);
  font-size: var(--fs-md);
}

.blog-footer-name a {
  color: var(--blog-title);
  text-decoration: none;
}

.blog-footer-name a:hover {
  color: var(--blog-primary);
}

.blog-footer-tagline {
  margin-top: var(--sp-1);
  color: var(--blog-muted);
  font-size: var(--fs-sm);
  max-width: 46ch;
}

.blog-footer-meta {
  margin-top: var(--sp-4);
  color: var(--blog-faint);
  font-size: var(--fs-xs);
  letter-spacing: 0.03em;
}

.blog-footer-meta a {
  color: var(--blog-muted);
  text-decoration: none;
}

.blog-footer-meta a:hover {
  color: var(--blog-primary);
}

/* ---- Layer 6: masthead + post listing ---- */
.blog-masthead {
  padding: var(--sp-7) 0 var(--sp-5);
}

.blog-masthead::before {
  content: '';
  display: block;
  width: 2.5rem;
  height: 3px;
  margin-bottom: var(--sp-4);
  background: var(--blog-accent);
}

.blog-masthead h1 {
  font-size: var(--fs-2xl);
}

.blog-masthead-tagline {
  margin-top: var(--sp-3);
  font-family: var(--blog-serif);
  font-size: var(--fs-md);
  color: var(--blog-muted);
  max-width: 54ch;
}

.blog-section-label {
  padding-top: var(--sp-5);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blog-faint);
}

.blog-post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.blog-post-card {
  padding: var(--sp-6) 0;
  border-top: 1px solid var(--blog-border);
}

.blog-post-list > li:first-child .blog-post-card,
.blog-post-card:first-child {
  border-top: 0;
}

.blog-post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 var(--sp-2);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blog-faint);
}

.blog-post-title {
  margin-top: var(--sp-3);
  font-size: var(--fs-xl);
}

.blog-post-title a {
  color: var(--blog-title);
  text-decoration: none;
  background-image: linear-gradient(var(--blog-accent), var(--blog-accent));
  background-repeat: no-repeat;
  background-position: 0 88%;
  background-size: 0 2px;
  transition: background-size var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.blog-post-title a:hover,
.blog-post-title a:focus-visible {
  color: var(--blog-primary);
  background-size: 100% 2px;
}

.blog-post-summary {
  margin-top: var(--sp-3);
  font-family: var(--blog-serif);
  font-size: var(--fs-md);
  color: var(--blog-muted);
  max-width: 62ch;
}

.blog-chip {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--blog-border);
  border-radius: 999px;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blog-muted);
  background: var(--blog-wash);
}

.blog-chip-pinned {
  border-color: var(--blog-accent);
  background: color-mix(in srgb, var(--blog-accent) 22%, #fff);
  color: #7a6320;
}

.blog-empty {
  padding: var(--sp-7) 0;
  border-top: 1px solid var(--blog-border);
  color: var(--blog-muted);
  font-family: var(--blog-serif);
  font-size: var(--fs-md);
}

/* ---- Layer 7: prose (post and page bodies) ---- */
.prose {
  font-family: var(--blog-serif);
  font-size: var(--fs-md);
  line-height: 1.75;
  color: var(--blog-text);
}

.prose > * + * {
  margin-top: var(--sp-5);
}

.prose h2 {
  margin-top: var(--sp-7);
  font-size: var(--fs-xl);
}

.prose h3 {
  margin-top: var(--sp-6);
  font-size: var(--fs-lg);
}

.prose h4 {
  margin-top: var(--sp-5);
  font-size: var(--fs-md);
}

.prose ul,
.prose ol {
  padding-left: 1.4em;
}

.prose li + li {
  margin-top: var(--sp-2);
}

.prose a {
  color: var(--blog-primary);
}

.prose blockquote {
  margin-inline: 0;
  padding: var(--sp-1) 0 var(--sp-1) var(--sp-5);
  border-left: 3px solid var(--blog-accent);
  color: var(--blog-muted);
  font-style: italic;
}

.prose blockquote > * + * {
  margin-top: var(--sp-3);
}

/* Callout blocks: `> [!NOTE]` / `[!TIP]` / `[!WARNING]` / `[!IMPORTANT]`,
   rendered by Blogmark as <aside class="callout callout-<keyword>">. The
   marker text never reaches the DOM (Blogmark.php's _apply_callouts()
   strips it), so the label word below is pure CSS content - never
   author-supplied, never read out of the markup. */
.prose .callout {
  margin-inline: 0;
  padding: var(--sp-4) var(--sp-5);
  border: 1px solid var(--blog-border);
  border-left: 4px solid var(--blog-primary);
  border-radius: var(--radius);
  background: var(--blog-wash);
  font-style: normal;
}

.prose .callout > * + * {
  margin-top: var(--sp-3);
}

.prose .callout::before {
  display: block;
  margin-bottom: var(--sp-2);
  font-family: var(--blog-sans);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--blog-primary);
}

.prose .callout-note::before {
  content: 'Note';
}

.prose .callout-tip {
  border-left-color: var(--blog-alt-primary);
}

.prose .callout-tip::before {
  /* --blog-alt-primary carries the border accent above; it is too light
     against --blog-wash to hold text contrast, so the label reuses the
     dark title token instead - the same choice callout-warning/important
     already make for the same reason. */
  content: 'Tip';
  color: var(--blog-title);
}

.prose .callout-warning {
  border-left-color: var(--blog-accent);
}

.prose .callout-warning::before {
  content: 'Warning';
  color: var(--blog-title);
}

.prose .callout-important {
  border-left-color: var(--blog-title);
}

.prose .callout-important::before {
  content: 'Important';
  color: var(--blog-title);
}

.prose img {
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--blog-border);
}

.prose figure {
  margin: 0;
}

.prose figcaption {
  margin-top: var(--sp-2);
  font-family: var(--blog-sans);
  font-size: var(--fs-sm);
  color: var(--blog-faint);
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--blog-border);
  margin-block: var(--sp-7);
}

.prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  padding: 0.12em 0.35em;
  border-radius: 4px;
  background: var(--blog-wash);
  border: 1px solid var(--blog-border);
}

.prose pre {
  position: relative;
  margin: 0;
  padding: var(--sp-4);
  overflow-x: auto;
  background: var(--blog-wash);
  border: 1px solid var(--blog-border);
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.prose pre code {
  padding: 0;
  border: 0;
  background: none;
  font-size: inherit;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--blog-sans);
  font-size: var(--fs-sm);
}

.prose th,
.prose td {
  padding: var(--sp-2) var(--sp-3);
  border-bottom: 1px solid var(--blog-border);
  text-align: left;
  vertical-align: top;
}

.prose th {
  color: var(--blog-title);
  font-weight: 600;
}

/* Wide content must scroll inside itself, never the page. */
.prose-scroll {
  overflow-x: auto;
}

/* Copy-code control, added by blog.js. */
.blog-code-wrap {
  position: relative;
}

.blog-code-copy {
  position: absolute;
  top: var(--sp-2);
  right: var(--sp-2);
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--blog-border);
  border-radius: 4px;
  background: var(--blog-paper);
  color: var(--blog-muted);
  font-family: var(--blog-sans);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--t-fast) var(--ease);
}

.blog-code-wrap:hover .blog-code-copy,
.blog-code-copy:focus-visible {
  opacity: 1;
}

/* ---- Layer 7b: article (post + page) ---- */
.blog-preview-banner {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-top: var(--sp-5);
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--blog-accent);
  border-left-width: 3px;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--blog-accent) 14%, #fff);
  color: #6d5817;
  font-family: var(--blog-sans);
  font-size: var(--fs-sm);
}

.blog-article-header {
  padding: var(--sp-7) 0 var(--sp-5);
}

.blog-article-header::before {
  content: '';
  display: block;
  width: 2.5rem;
  height: 3px;
  margin-bottom: var(--sp-4);
  background: var(--blog-accent);
}

.blog-article-header h1 {
  font-size: var(--fs-2xl);
}

.blog-article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 var(--sp-2);
  margin-top: var(--sp-4);
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blog-faint);
}

.blog-article-byline {
  color: var(--blog-muted);
}

a.blog-chip {
  text-decoration: none;
}

a.blog-chip:hover {
  border-color: var(--blog-accent);
  color: var(--blog-primary);
}

.blog-featured {
  margin: 0 0 var(--sp-6);
}

.blog-featured img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--blog-border);
  border-radius: var(--radius);
}

/* Table of contents. The <nav class="post-toc"> markup comes from Blogmark. */
.blog-toc {
  margin-bottom: var(--sp-6);
  padding: var(--sp-4) var(--sp-5);
  border: 1px solid var(--blog-border);
  border-left: 3px solid var(--blog-accent);
  border-radius: var(--radius);
  background: var(--blog-wash);
}

.blog-toc-label {
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blog-faint);
}

.blog-toc .post-toc {
  margin-top: var(--sp-3);
}

.blog-toc ol {
  margin: 0;
  padding-left: 1.1em;
  font-family: var(--blog-sans);
  font-size: var(--fs-sm);
  line-height: 1.5;
}

.blog-toc ol ol {
  margin-top: var(--sp-2);
  padding-left: 1em;
  color: var(--blog-faint);
}

.blog-toc li + li {
  margin-top: var(--sp-2);
}

.blog-toc a {
  color: var(--blog-muted);
  text-decoration: none;
}

.blog-toc a:hover {
  color: var(--blog-primary);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

/* Share row. */
.blog-share {
  margin-top: var(--sp-7);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--blog-border);
}

.blog-share-label {
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blog-faint);
}

.blog-share-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin: var(--sp-3) 0 0;
  padding: 0;
  list-style: none;
}

.blog-share-list a,
.blog-share-copy {
  display: inline-block;
  /* Anchors and the <button> have different default font metrics, so both are
     stated explicitly: the row has to read as one set of controls. */
  margin: 0;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--blog-border);
  border-radius: 999px;
  background: var(--blog-paper);
  color: var(--blog-muted);
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  line-height: 1.45;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.blog-share-list a:hover,
.blog-share-copy:hover {
  border-color: var(--blog-accent);
  color: var(--blog-primary);
}

/* Read next. */
.blog-related {
  margin-top: var(--sp-7);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--blog-border);
}

.blog-related-list {
  margin: var(--sp-4) 0 0;
  padding: 0;
  list-style: none;
}

.blog-related-list li + li {
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--blog-border);
}

.blog-related-list a {
  font-family: var(--blog-serif);
  font-size: var(--fs-md);
  color: var(--blog-title);
  text-decoration: none;
  background-image: linear-gradient(var(--blog-accent), var(--blog-accent));
  background-repeat: no-repeat;
  background-position: 0 92%;
  background-size: 0 2px;
  transition: background-size var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.blog-related-list a:hover,
.blog-related-list a:focus-visible {
  color: var(--blog-primary);
  background-size: 100% 2px;
}

.blog-related-meta {
  margin-top: var(--sp-1);
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blog-faint);
}

/* ---- Layer 7c: comments ----
   A reading surface, not a feed: no cards, no avatars, no counters. One rule
   between entries, replies indented once against a quiet accent edge. */
.blog-comments {
  margin-top: var(--sp-7);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--blog-border);
}

.blog-comments .blog-section-label {
  padding-top: 0;
}

#post-comments {
  margin-top: var(--sp-4);
}

.blog-comment-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.blog-comment {
  padding: var(--sp-5) 0;
  border-top: 1px solid var(--blog-border);
}

.blog-comment-list > .blog-comment:first-child {
  border-top: 0;
  padding-top: var(--sp-2);
}

.blog-comment-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0 var(--sp-1);
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blog-faint);
}

/* A person's name is a name, not a label: serif, title case, no tracking. The
   date beside it keeps the theme's micro-label treatment. */
.blog-comment-author {
  font-family: var(--blog-serif);
  font-size: var(--fs-base);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  color: var(--blog-title);
}

.blog-comment-body {
  margin-top: var(--sp-3);
  font-family: var(--blog-serif);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--blog-text);
  max-width: 62ch;
  overflow-wrap: anywhere;
}

.blog-comment-actions {
  margin-top: var(--sp-3);
}

.blog-comment-reply-link {
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blog-muted);
  text-decoration: none;
}

.blog-comment-reply-link:hover {
  color: var(--blog-primary);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

/* Replies: one indent, one accent edge, no further nesting. */
.blog-comment-children {
  margin-left: var(--sp-4);
  padding: 0 0 var(--sp-3) var(--sp-5);
  border-left: 2px solid var(--blog-border);
}

.blog-comment-children .blog-comment {
  border-top: 0;
  padding: var(--sp-4) 0 0;
}

.blog-comment-empty {
  padding: var(--sp-4) 0 var(--sp-2);
  font-family: var(--blog-serif);
  font-size: var(--fs-md);
  color: var(--blog-muted);
}

/* Notice returned by a no-JavaScript submit, and the fetch response line. */
.blog-comment-notice,
.blog-comment-response {
  margin-bottom: var(--sp-5);
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--blog-border);
  border-left-width: 3px;
  border-radius: var(--radius);
  background: var(--blog-wash);
  font-family: var(--blog-sans);
  font-size: var(--fs-sm);
  color: var(--blog-text);
}

.blog-comment-notice-success,
.blog-comment-response[data-state='success'] {
  border-left-color: var(--blog-primary);
}

.blog-comment-notice-error,
.blog-comment-response[data-state='error'] {
  border-left-color: var(--blog-accent);
}

.blog-comment-response {
  margin: var(--sp-4) 0 0;
}

/* ---- Comment form ---- */
.blog-comment-form {
  margin-top: var(--sp-6);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--blog-border);
}

.blog-comment-form-label {
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blog-faint);
}

.blog-comment-replying {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--sp-3);
  margin-top: var(--sp-3);
  font-family: var(--blog-sans);
  font-size: var(--fs-sm);
  color: var(--blog-muted);
}

.blog-comment-replying strong {
  color: var(--blog-title);
}

.blog-comment-cancel {
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blog-muted);
  text-decoration: none;
}

.blog-comment-cancel:hover {
  color: var(--blog-primary);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

/* The honeypot: off-screen rather than display:none, which some form fillers
   skip. Never announced, never focusable in sequence. */
.blog-comment-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.blog-comment-identity {
  margin-top: var(--sp-4);
  font-family: var(--blog-sans);
  font-size: var(--fs-sm);
  color: var(--blog-muted);
}

.blog-comment-identity strong {
  color: var(--blog-title);
}

.blog-comment-signin {
  margin-top: var(--sp-4);
  font-family: var(--blog-sans);
  font-size: var(--fs-sm);
  color: var(--blog-muted);
}

.blog-comment-signin a {
  color: var(--blog-primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.blog-comment-fields {
  display: grid;
  gap: var(--sp-4);
  margin-top: var(--sp-4);
}

.blog-field {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}

.blog-comment-fields .blog-field {
  margin-top: 0;
}

.blog-field label {
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blog-muted);
}

.blog-field input,
.blog-field select,
.blog-field textarea {
  width: 100%;
  padding: var(--sp-3) var(--sp-3);
  border: 1px solid var(--blog-border);
  border-radius: var(--radius);
  background: var(--blog-paper);
  color: var(--blog-text);
  font-family: var(--blog-sans);
  font-size: var(--fs-base);
  line-height: 1.5;
}

.blog-field textarea {
  resize: vertical;
  min-height: 8rem;
}

.blog-field input:focus,
.blog-field select:focus,
.blog-field textarea:focus {
  border-color: var(--blog-primary);
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--blog-primary) 12%, transparent);
}

.blog-search-form {
  display: grid;
  gap: var(--sp-4);
  align-items: end;
  margin-top: var(--sp-5);
}

.blog-search-form .blog-field {
  margin-top: 0;
}

.blog-field-hint {
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  color: var(--blog-faint);
}

.blog-comment-submit {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-3) var(--sp-4);
  margin-top: var(--sp-5);
}

.blog-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.4rem;
  border: 1px solid var(--blog-primary);
  border-radius: 999px;
  background: var(--blog-primary);
  color: #fff;
  font-family: var(--blog-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.blog-button:hover {
  background: var(--blog-title);
  border-color: var(--blog-title);
  color: #fff;
}

.blog-button[disabled] {
  opacity: 0.6;
  cursor: default;
}

.blog-comment-note {
  font-family: var(--blog-sans);
  font-size: var(--fs-xs);
  color: var(--blog-faint);
}

/* ---- Layer 8: pagination ---- */
.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  flex-wrap: wrap;
  padding-top: var(--sp-6);
  border-top: 1px solid var(--blog-border);
}

.blog-pagination-pages {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  flex-wrap: wrap;
  font-size: var(--fs-sm);
}

.blog-pagination a,
.blog-pagination span {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  min-width: 2rem;
  height: 2rem;
  padding: 0 var(--sp-2);
  justify-content: center;
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  text-decoration: none;
}

.blog-pagination a {
  color: var(--blog-muted);
  border: 1px solid transparent;
}

.blog-pagination a:hover {
  color: var(--blog-primary);
  border-color: var(--blog-border);
}

.blog-pagination [aria-current='page'] {
  color: var(--blog-title);
  border: 1px solid var(--blog-border);
  background: var(--blog-wash);
  font-weight: 600;
}

.blog-pagination-gap {
  color: var(--blog-faint);
}

/* ---- Layer 9: utility pages (404, placeholder, directory) ---- */
.blog-page {
  padding: var(--sp-8) 0 var(--sp-6);
}

.blog-page::before {
  content: '';
  display: block;
  width: 2.5rem;
  height: 3px;
  margin-bottom: var(--sp-4);
  background: var(--blog-accent);
}

.blog-page h1 {
  font-size: var(--fs-2xl);
}

.blog-page-lead {
  margin-top: var(--sp-4);
  font-family: var(--blog-serif);
  font-size: var(--fs-md);
  color: var(--blog-muted);
  max-width: 60ch;
}

.blog-page-links {
  margin-top: var(--sp-5);
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-5);
  font-size: var(--fs-sm);
}

.blog-directory-list {
  list-style: none;
  margin: var(--sp-5) 0 0;
  padding: 0;
}

.blog-directory-list li {
  padding: var(--sp-5) 0;
  border-top: 1px solid var(--blog-border);
}

.blog-directory-list h2 {
  font-size: var(--fs-lg);
}

.blog-directory-list h2 a {
  color: var(--blog-title);
  text-decoration: none;
}

.blog-directory-list h2 a:hover {
  color: var(--blog-primary);
}

.blog-directory-list p {
  margin-top: var(--sp-2);
  color: var(--blog-muted);
  font-size: var(--fs-sm);
  max-width: 62ch;
}

/* ---- Layer 10: responsive ---- */
@media (min-width: 40em) {
  :root {
    --gutter: 2rem;
  }

  .blog-header-inner {
    flex-wrap: nowrap;
    min-height: 4.5rem;
  }

  .blog-nav-toggle {
    display: none;
  }

  .blog-nav {
    display: flex;
    flex-basis: auto;
    flex-direction: row;
    align-items: center;
    gap: var(--sp-5);
    padding-bottom: 0;
  }

  .blog-masthead {
    padding: var(--sp-8) 0 var(--sp-6);
  }

  .blog-masthead h1 {
    font-size: var(--fs-3xl);
  }

  .blog-post-title {
    font-size: var(--fs-2xl);
  }

  .blog-page h1 {
    font-size: var(--fs-3xl);
  }

  .blog-article-header {
    padding: var(--sp-8) 0 var(--sp-5);
  }

  .blog-article-header h1 {
    font-size: var(--fs-3xl);
  }

  .blog-comment-fields {
    grid-template-columns: 1fr 1fr;
  }

  .blog-search-form {
    grid-template-columns: 1fr auto auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

@media print {
  .blog-header,
  .blog-footer,
  .blog-pagination,
  .skip-link,
  .blog-code-copy,
  .blog-share,
  .blog-related,
  .blog-comments {
    display: none !important;
  }
}