.article-toc {
  box-sizing: border-box;
  margin: 0 0 32px;
  color: #334155;
}

.article-toc *,
.article-toc *::before,
.article-toc *::after { box-sizing: border-box; }

.article-toc__heading {
  margin: 0 0 14px;
  font-weight: 700;
  line-height: 1.25;
}

.article-content .article-toc .article-toc__list,
.article-toc .article-toc__list {
  margin: 0;
  padding-left: 22px;
}

.article-content .article-toc li,
.article-toc li {
  margin: 7px 0;
  line-height: 1.55;
}

.article-toc a { transition: color .18s ease, background-color .18s ease, transform .18s ease; }
.article-toc__level-3 { margin-left: 18px !important; }
.article-toc__level-4 { margin-left: 36px !important; }

/* 1. Classic */
.article-toc--template-classic {
  padding: 24px 26px;
  border: 1px solid #e2e8f0;
  border-left: 4px solid #111827;
  border-radius: 10px;
  background: #f8fafc;
}

.article-toc--template-classic .article-toc__heading { color: #111827; font-size: 20px; }
.article-toc--template-classic a { color: #334155; text-decoration: none; }
.article-toc--template-classic a:hover { color: #111827; text-decoration: underline; }

/* 2. Midnight */
.article-toc--template-midnight {
  padding: 28px;
  overflow: hidden;
  border: 1px solid #262626;
  border-radius: 16px;
  color: #d4d4d4;
  background: linear-gradient(145deg, #09090b, #171717);
  box-shadow: 0 18px 42px rgba(0, 0, 0, .2);
}

.article-toc--template-midnight .article-toc__heading {
  padding-bottom: 14px;
  border-bottom: 1px solid #333;
  color: #fff;
  font-size: 21px;
  letter-spacing: .02em;
}

.article-content .article-toc--template-midnight .article-toc__list,
.article-toc--template-midnight .article-toc__list { padding-left: 28px; list-style: decimal-leading-zero; }
.article-toc--template-midnight li::marker { color: #fbbf24; font-weight: 700; }
.article-toc--template-midnight a { color: #f5f5f5; text-decoration: none; }
.article-toc--template-midnight a:hover { color: #fbbf24; }

/* 3. Numbered cards */
.article-toc--template-numbered-cards {
  padding: 25px;
  border: 1px solid #dbeafe;
  border-radius: 18px;
  background: #eff6ff;
}

.article-toc--template-numbered-cards .article-toc__heading { color: #172554; font-size: 21px; }
.article-content .article-toc--template-numbered-cards .article-toc__list,
.article-toc--template-numbered-cards .article-toc__list { padding: 0; list-style: none; counter-reset: toc-card; }

.article-content .article-toc--template-numbered-cards li,
.article-toc--template-numbered-cards li {
  position: relative;
  min-height: 42px;
  margin: 9px 0;
  padding: 10px 14px 10px 50px;
  border: 1px solid #dbeafe;
  border-radius: 10px;
  background: #fff;
  counter-increment: toc-card;
}

.article-toc--template-numbered-cards li::before {
  content: counter(toc-card);
  position: absolute;
  top: 8px;
  left: 10px;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: #2563eb;
  font-size: 13px;
  font-weight: 700;
}

.article-toc--template-numbered-cards a { color: #1e3a8a; font-weight: 600; text-decoration: none; }
.article-toc--template-numbered-cards a:hover { color: #2563eb; }

/* 4. Minimal lines */
.article-toc--template-minimal-lines {
  padding: 8px 0 2px;
  border-top: 3px solid #0f172a;
  border-bottom: 1px solid #cbd5e1;
  background: transparent;
}

.article-toc--template-minimal-lines .article-toc__heading {
  margin: 0;
  padding: 16px 4px 12px;
  color: #0f172a;
  font-size: 18px;
  text-transform: uppercase;
  letter-spacing: .1em;
}

.article-content .article-toc--template-minimal-lines .article-toc__list,
.article-toc--template-minimal-lines .article-toc__list { padding: 0; list-style: none; }
.article-content .article-toc--template-minimal-lines li,
.article-toc--template-minimal-lines li { margin: 0; padding: 11px 4px; border-top: 1px solid #e2e8f0; }
.article-toc--template-minimal-lines a { display: block; color: #334155; text-decoration: none; }
.article-toc--template-minimal-lines a:hover { color: #0f172a; transform: translateX(4px); }

/* 5. Editorial */
.article-toc--template-editorial {
  padding: 29px 30px;
  border: 1px solid #dccfb8;
  border-radius: 2px;
  color: #4b3f32;
  background: #faf7f0;
  font-family: Georgia, 'Times New Roman', serif;
}

.article-toc--template-editorial .article-toc__heading {
  color: #2f261e;
  font-size: 23px;
  font-style: italic;
  text-align: center;
}

.article-toc--template-editorial .article-toc__heading::after {
  content: '';
  display: block;
  width: 48px;
  margin: 12px auto 0;
  border-bottom: 2px solid #9a6b3f;
}

.article-content .article-toc--template-editorial .article-toc__list,
.article-toc--template-editorial .article-toc__list { padding-left: 27px; list-style: upper-roman; }
.article-toc--template-editorial li::marker { color: #9a6b3f; }
.article-toc--template-editorial a { color: #4b3f32; text-decoration: none; }
.article-toc--template-editorial a:hover { color: #8b5e34; text-decoration: underline; }

/* Custom template. PHP emits sanitized CSS variables only. */
.article-toc--template-custom {
  padding: var(--toc-padding);
  border: var(--toc-border-width) solid var(--toc-border);
  border-left: calc(var(--toc-border-width) + 3px) solid var(--toc-accent);
  border-radius: var(--toc-radius);
  color: var(--toc-text);
  background: var(--toc-background);
  box-shadow: var(--toc-shadow);
  font-family: var(--toc-font-family);
  font-size: var(--toc-font-size);
}

.article-toc--template-custom .article-toc__heading { color: var(--toc-heading); font-size: var(--toc-heading-size); }
.article-toc--heading-center .article-toc__heading { text-align: center; }
.article-toc--heading-right .article-toc__heading { text-align: right; }
.article-content .article-toc--template-custom .article-toc__list,
.article-toc--template-custom .article-toc__list { padding-left: 24px; color: var(--toc-text); list-style: var(--toc-list-style); }
.article-content .article-toc--template-custom li,
.article-toc--template-custom li { margin-top: var(--toc-item-gap); margin-bottom: var(--toc-item-gap); }
.article-toc--template-custom li::marker { color: var(--toc-accent); }
.article-toc--template-custom a { color: var(--toc-link); text-decoration: var(--toc-link-decoration); }
.article-toc--template-custom a:hover { color: var(--toc-hover); text-decoration: underline; }

.article-content .article-toc--items-dividers li,
.article-toc--items-dividers li { padding-bottom: var(--toc-item-gap); border-bottom: 1px solid var(--toc-border); }
.article-content .article-toc--items-cards .article-toc__list,
.article-toc--items-cards .article-toc__list { padding-left: 0; list-style-position: inside; }
.article-content .article-toc--items-cards li,
.article-toc--items-cards li {
  padding: 10px 12px;
  border: 1px solid var(--toc-border);
  border-radius: calc(var(--toc-radius) / 2);
  background: var(--toc-background);
}

.article-content h2[id],
.article-content h3[id],
.article-content h4[id] { scroll-margin-top: 100px; }

@media (max-width: 575px) {
  .article-toc { padding: 20px; }
  .article-toc__level-3 { margin-left: 10px !important; }
  .article-toc__level-4 { margin-left: 20px !important; }
}