/* ==========================================================================
   blog.css — the situation-first guide to every ToolAdda tool (blog.html)

   Page-scoped behind .blg-scope / .blg-page-shell so nothing leaks into
   style.css, which is shared by ~140 other pages.

   Base accent: crimson #9d174d (light) / #f9a8d4 (dark).

   Every section additionally carries its own hue as `--blg-h`, set inline by
   scripts/build_blog.py. Section headings, icons, links, tips, chips and the
   matching table-of-contents entry all derive their colour from that one
   number via hsl(), so adding a fifteenth section means choosing one hue
   rather than writing another block of colour rules.

   This is a long reading page, not a tool, so the type is sized for prose:
   a measure capped near 70 characters, generous leading, and links that are
   obviously links, because the whole point of the page is that the reader
   leaves it for a tool.
   ========================================================================== */

.blg-page-shell {
  --blg-dot: rgba(157, 23, 77, 0.14);
  background-image: radial-gradient(circle, var(--blg-dot) 1px, transparent 1px);
  background-size: 22px 22px;
  background-position: center top;
  background-attachment: fixed;
}

[data-theme="dark"] .blg-page-shell {
  --blg-dot: rgba(249, 168, 212, 0.12);
}

.blg-scope {
  --blg-accent: #9d174d;
  --blg-accent-2: #be123c;
  --blg-accent-soft: rgba(157, 23, 77, 0.08);
  --blg-accent-line: rgba(157, 23, 77, 0.22);
  --blg-ink: var(--text);
  --blg-muted: var(--text-muted);
  --blg-card: var(--surface-strong);
  --blg-line: var(--border);
}

[data-theme="dark"] .blg-scope {
  --blg-accent: #f9a8d4;
  --blg-accent-2: #fb7185;
  --blg-accent-soft: rgba(249, 168, 212, 0.1);
  --blg-accent-line: rgba(249, 168, 212, 0.26);
  --blg-card: #0f172a;
}

/* ------------------------------------------------------------------ hero */

.blg-hero {
  position: relative;
  text-align: center;
  max-width: 56rem;
  margin: 0 auto 2.25rem;
  padding: 1rem 0 0;
}
.blg-hero::before {
  content: "";
  position: absolute;
  /* Kept inside the box horizontally: a percentage bleed here widened the
     page past the viewport on a phone and gave the whole document a
     sideways scroll. The gradient is widened instead, so the fade looks
     the same without any overflow. */
  inset: -2rem 0 auto 0;
  height: 17rem;
  background: radial-gradient(85% 70% at 50% 0%, var(--blg-accent-soft), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.blg-hero > * { position: relative; z-index: 1; }

.blg-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blg-accent);
  background: var(--blg-accent-soft);
  border: 1px solid var(--blg-accent-line);
  border-radius: 999px;
  padding: .4rem 1rem;
  margin: 0 0 1.15rem;
}
.blg-eyebrow::before {
  content: "";
  width: .45rem;
  height: .45rem;
  border-radius: 50%;
  background: var(--blg-accent);
  flex: none;
}

.blg-hero h1 {
  font-size: clamp(2rem, 4.8vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  margin: 0 0 .9rem;
}
.blg-hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--blg-accent), var(--blg-accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.blg-hero-sub {
  font-size: clamp(1rem, 1.7vw, 1.15rem);
  line-height: 1.65;
  color: var(--blg-muted);
  margin: 0 auto;
  max-width: 44rem;
}

.blg-updated {
  font-size: .76rem;
  font-weight: 700;
  color: var(--blg-muted);
  margin: 1.2rem 0 0;
}

/* ----------------------------------------------------------------- stats */

.blg-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .5rem;
  list-style: none;
  padding: 0;
  margin: 1.6rem 0 0;
}
.blg-stats li {
  min-width: 6.5rem;
  padding: .7rem 1.1rem;
  background: var(--blg-card);
  border: 1px solid var(--blg-line);
  border-radius: var(--radius-md);
}
.blg-stat-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.02em;
  background: linear-gradient(135deg, var(--blg-accent), var(--blg-accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.blg-stat-label {
  display: block;
  font-size: .68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--blg-muted);
  margin-top: .15rem;
}

/* ---------------------------------------------------------------- layout */

.blg-layout {
  display: grid;
  grid-template-columns: minmax(0, 16rem) minmax(0, 1fr);
  gap: 1.75rem;
  align-items: start;
}

@media (max-width: 980px) {
  .blg-layout { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
}

/* ------------------------------------------------------------------- toc */

.blg-toc {
  position: sticky;
  top: 1.25rem;
  max-height: calc(100vh - 2.5rem);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: .12rem;
  padding: .9rem;
  background: var(--blg-card);
  border: 1px solid var(--blg-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  scrollbar-width: thin;
}

.blg-toc-head {
  font-size: .68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .09em;
  color: var(--blg-muted);
  margin: 0 0 .5rem .55rem;
}

.blg-toc-item {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .45rem .55rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--blg-muted);
  font-size: .82rem;
  font-weight: 700;
  line-height: 1.35;
  border-left: 2px solid transparent;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.blg-toc-icon { flex: none; font-size: .95rem; line-height: 1; filter: saturate(.45); }
.blg-toc-text { flex: 1 1 auto; min-width: 0; }
.blg-toc-num {
  flex: none;
  font-size: .65rem;
  font-weight: 800;
  color: var(--blg-line);
  font-variant-numeric: tabular-nums;
}

.blg-toc-item:hover {
  background: var(--blg-accent-soft);
  color: var(--blg-ink);
}

/* Set by blog.js as the reader moves down the page. Each entry borrows its
   own section's hue, so the rail and the section agree on colour. */
.blg-toc-item[aria-current="true"] {
  color: hsl(var(--blg-h, 340) 62% var(--blg-l, 38%));
  background: hsl(var(--blg-h, 340) 62% 48% / .1);
  border-left-color: hsl(var(--blg-h, 340) 62% 45%);
}
.blg-toc-item[aria-current="true"] .blg-toc-icon { filter: none; }
[data-theme="dark"] .blg-scope .blg-toc-item[aria-current="true"] {
  color: hsl(var(--blg-h, 340) 78% var(--blg-ld, 76%));
  background: hsl(var(--blg-h, 340) 78% var(--blg-ld, 76%) / .12);
  border-left-color: hsl(var(--blg-h, 340) 78% var(--blg-ld, 76%));
}

/* On narrow screens the rail becomes a horizontal strip above the article,
   which keeps it useful without eating a third of a phone screen. */
@media (max-width: 980px) {
  .blg-toc {
    position: static;
    flex-direction: row;
    max-height: none;
    overflow-x: auto;
    overflow-y: hidden;
    gap: .4rem;
    padding: .6rem;
  }
  .blg-toc-head { display: none; }
  .blg-toc-item {
    flex: 0 0 auto;
    border-left: 0;
    white-space: nowrap;
    border-radius: 999px;
  }
  .blg-toc-num { display: none; }
  .blg-toc-item[aria-current="true"] { border-left-color: transparent; }
}

/* ----------------------------------------------------------------- prose */

.blg-prose {
  font-size: 1.02rem;
  line-height: 1.75;
}
.blg-prose p { max-width: 42rem; }

/* Each section is its own card. Fourteen hairline-separated blocks inside one
   long card read as an undifferentiated wall; separate cards give the page a
   rhythm you can scan. */
.blg-sec {
  scroll-margin-top: 5.5rem;
  background: var(--blg-card);
  border: 1px solid var(--blg-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: 1.5rem 1.6rem 1.6rem;
  margin-bottom: 1.1rem;
  position: relative;
  overflow: hidden;
}
/* A hairline of the section's own colour along the top edge. */
.blg-sec::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg,
    hsl(var(--blg-h, 340) 62% 48%),
    hsl(var(--blg-h, 340) 62% 48% / 0));
}

@media (max-width: 560px) {
  .blg-sec { padding: 1.2rem 1.1rem 1.3rem; }
}

.blg-sec-head {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  margin-bottom: 1rem;
}

.blg-sec-icon {
  flex: none;
  width: 2.6rem;
  height: 2.6rem;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  line-height: 1;
  border-radius: var(--radius-sm);
  background: hsl(var(--blg-h, 340) 62% 48% / .12);
  border: 1px solid hsl(var(--blg-h, 340) 62% 48% / .3);
}

.blg-prose h2 {
  font-size: clamp(1.3rem, 2.3vw, 1.65rem);
  letter-spacing: -.015em;
  line-height: 1.2;
  margin: 0;
}

.blg-sec-blurb {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--blg-muted);
  margin: 0 0 .25rem;
  max-width: none !important;
}
.blg-sec-num {
  font-variant-numeric: tabular-nums;
  color: hsl(var(--blg-h, 340) 62% var(--blg-l, 38%));
  font-size: .78rem;
}
[data-theme="dark"] .blg-scope .blg-sec-num { color: hsl(var(--blg-h, 340) 78% var(--blg-ld, 76%)); }

.blg-prose h3 {
  font-size: 1rem;
  margin: 0 0 .35rem;
  letter-spacing: -.01em;
}

/* Tool links carry an underline that thickens on hover — on a page whose job
   is to send people to tools, a link must never read as plain bold text.
   :not(.blg-chip) matters: the chip rows are <p class="blg-also">, so without
   it the pills inherit the prose underline and stop reading as pills. */
.blg-prose p a:not(.blg-chip),
.blg-prose td a {
  color: hsl(var(--blg-h, 340) 62% var(--blg-l, 38%));
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: hsl(var(--blg-h, 340) 62% var(--blg-l, 38%) / .35);
  text-underline-offset: .18em;
  text-decoration-thickness: 1.5px;
  transition: text-decoration-color .15s ease;
}
.blg-prose p a:not(.blg-chip):hover,
.blg-prose td a:hover { text-decoration-color: hsl(var(--blg-h, 340) 62% var(--blg-l, 38%)); }

[data-theme="dark"] .blg-scope .blg-prose p a:not(.blg-chip),
[data-theme="dark"] .blg-scope .blg-prose td a {
  color: hsl(var(--blg-h, 340) 78% var(--blg-ld, 76%));
  text-decoration-color: hsl(var(--blg-h, 340) 78% var(--blg-ld, 76%) / .35);
}
[data-theme="dark"] .blg-scope .blg-prose p a:not(.blg-chip):hover,
[data-theme="dark"] .blg-scope .blg-prose td a:hover {
  text-decoration-color: hsl(var(--blg-h, 340) 78% var(--blg-ld, 76%));
}

.blg-prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .88em;
  background: var(--blg-accent-soft);
  border: 1px solid var(--blg-accent-line);
  border-radius: 4px;
  padding: .08rem .32rem;
}

/* ------------------------------------------------------------------ tips */

.blg-tip {
  background: hsl(var(--blg-h, 340) 62% 48% / .08);
  border-left: 3px solid hsl(var(--blg-h, 340) 62% 48%);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: .75rem .95rem;
  font-size: .93rem;
  margin: 1.1rem 0 0;
  max-width: none !important;
}
.blg-tip::before {
  content: "Tip";
  display: block;
  font-size: .66rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .09em;
  color: hsl(var(--blg-h, 340) 62% var(--blg-l, 38%));
  margin-bottom: .2rem;
}
[data-theme="dark"] .blg-scope .blg-tip::before { color: hsl(var(--blg-h, 340) 78% var(--blg-ld, 76%)); }

/* ------------------------------------------------------------ chip lists */

.blg-also {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
  max-width: none !important;
  margin: 1.2rem 0 0;
  padding-top: 1rem;
  border-top: 1px dashed var(--blg-line);
}
.blg-also > span {
  font-size: .68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--blg-muted);
  margin-right: .2rem;
}
.blg-chip {
  font-size: .8rem;
  font-weight: 700;
  color: var(--blg-ink);
  background: var(--bg);
  border: 1px solid var(--blg-line);
  border-radius: 999px;
  padding: .32rem .75rem;
  text-decoration: none;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}
.blg-chip:hover {
  color: hsl(var(--blg-h, 340) 62% var(--blg-l, 38%));
  border-color: hsl(var(--blg-h, 340) 62% 48%);
  background: hsl(var(--blg-h, 340) 62% 48% / .1);
}
[data-theme="dark"] .blg-scope .blg-chip:hover { color: hsl(var(--blg-h, 340) 78% var(--blg-ld, 76%)); }

/* ------------------------------------------------------------------- faq */

.blg-faq { display: grid; gap: .6rem; }
.blg-faq-item {
  background: var(--bg);
  border: 1px solid var(--blg-line);
  border-radius: var(--radius-sm);
  padding: .9rem 1rem;
}
.blg-faq-item p { margin: 0; max-width: none; font-size: .95rem; }

/* ---------------------------------------------------------------- tables */

.blg-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--blg-line);
  border-radius: var(--radius-md);
  background: var(--bg);
  margin: 1.2rem 0 0;
}
.blg-table { width: 100%; border-collapse: collapse; font-size: .93rem; }
.blg-table th,
.blg-table td {
  text-align: left;
  padding: .8rem .9rem;
  border-bottom: 1px solid var(--blg-line);
  vertical-align: top;
  line-height: 1.6;
}
.blg-table th {
  font-size: .7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--blg-muted);
  background: var(--blg-card);
}
.blg-table td:first-child { white-space: normal; min-width: 13rem; font-weight: 600; }
.blg-table tbody tr:last-child td { border-bottom: 0; }

@media (max-width: 640px) {
  .blg-table td:first-child { min-width: 9rem; }
  .blg-table th, .blg-table td { padding: .6rem .65rem; }
}

/* ---------------------------------------------------------- back to top */

.blg-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blg-accent), var(--blg-accent-2));
  color: #fff;
  font-size: 1.1rem;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 8px 22px rgba(157, 23, 77, .32);
  opacity: 0;
  visibility: hidden;
  transform: translateY(.5rem);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
  z-index: 20;
}
.blg-top.is-on { opacity: 1; visibility: visible; transform: none; }
[data-theme="dark"] .blg-scope .blg-top { color: #2a0714; box-shadow: none; }

/* --------------------------------------------------------- reduced motion */

@media (prefers-reduced-motion: reduce) {
  .blg-scope * { transition: none !important; }
}

/* ----------------------------------------------------------------- print */

@media print {
  .blg-page-shell { background-image: none !important; }
  .site-header,
  .site-footer,
  .breadcrumb,
  .blg-toc,
  .blg-stats,
  .blg-top,
  .skip-link { display: none !important; }

  .blg-layout { display: block; }
  .blg-prose { font-size: 10.5pt; line-height: 1.5; }
  .blg-prose p { max-width: none; }

  .blg-sec {
    break-inside: avoid-page;
    border: 0;
    border-top: 1px solid #999;
    border-radius: 0;
    box-shadow: none;
    background: #fff;
    padding: .6rem 0 0;
    margin-bottom: .6rem;
  }
  .blg-sec::before { display: none; }
  .blg-sec-icon { display: none; }
  .blg-prose h2 { break-after: avoid-page; }

  .blg-faq-item, .blg-table-wrap { border-color: #999; background: #fff; }
  .blg-table th { background: #eee !important; }

  /* A printed guide is useless if the links are invisible, so spell them out. */
  .blg-prose p a::after,
  .blg-chip::after {
    content: " (tooladda.online" attr(href) ")";
    font-size: .8em;
    font-weight: 400;
    color: #555;
  }
  .blg-prose p a, .blg-chip { color: #000; text-decoration: underline; }
  .blg-chip { border: 0; padding: 0; background: none; }
  .blg-also { display: block; border-top: 0; }

  @page { margin: 14mm; }
}