/* ==========================================================================
   Vista City — Wiki-Artikel
   Zweispaltig: Text links, mitlaufendes Inhaltsverzeichnis rechts. Der Kopf
   trägt Titel, Einstieg und Kennzahlen; der Fuß führt weiter, statt in
   einer Sackgasse zu enden.
   ========================================================================== */

/* --- Kopf ------------------------------------------------------------------ */

.article__hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(8rem, 6rem + 6vw, 12rem) clamp(2rem, 4vw, 3.5rem);
  border-bottom: 1px solid var(--line);
}
.article__hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -2;
  background: radial-gradient(55% 80% at 0% 100%,
    color-mix(in oklab, var(--accent) 14%, transparent), transparent 68%);
}

.article__heroinner { display: grid; gap: 1.1rem; max-width: 54rem; }
.article__title {
  font-size: clamp(2.1rem, 1.4rem + 3vw, 4rem);
  text-wrap: balance;
}
.article__lead {
  max-width: 58ch;
  color: var(--ink-soft);
  font-size: var(--text-lg);
  line-height: 1.65;
  text-wrap: pretty;
}
.article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
  margin-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--ink-mute);
}

/* --- Raster ---------------------------------------------------------------- */

.article__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 16rem;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
  padding-block: clamp(2.5rem, 5vw, 4.5rem);
}

.article__body { max-width: 46rem; }
.article__section + .article__section { margin-top: clamp(2.5rem, 5vw, 3.5rem); }
/* Erste Ueberschrift ohne den Standardabstand der Prosa. */
.article__section:first-child > h2:first-child { margin-top: 0; }
.article__section > h2 { scroll-margin-top: 7rem; }

/* --- Inhaltsverzeichnis ---------------------------------------------------- */

.article__aside {
  position: sticky;
  top: 6.5rem;
  display: grid;
  gap: 1.5rem;
}

.toc { display: grid; gap: 0.5rem; padding-left: 1rem; border-left: 1px solid var(--line); }
.toc h2 {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--track-wide);
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 0.25rem;
}
.toc a {
  position: relative;
  font-size: var(--text-sm);
  line-height: 1.45;
  color: var(--ink-mute);
  transition: color var(--dur-fast) linear, padding-left var(--dur-fast) var(--ease-out-expo);
}
.toc a:hover { color: var(--ink); }
/* Marke am Rand statt Farbfleck: zeigt die Leseposition an. */
.toc a.is-active { color: var(--accent); padding-left: 0.6rem; font-weight: 600; }
.toc a.is-active::before {
  content: '';
  position: absolute;
  left: -1rem;
  top: 0.35em;
  width: 2px;
  height: 1em;
  background: var(--accent);
}

.asidebox {
  display: grid;
  gap: 0.7rem;
  justify-items: start;
  padding: 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
}
.asidebox h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.asidebox p { color: var(--ink-soft); font-size: var(--text-sm); line-height: 1.6; }

/* --- Rückmeldung ---------------------------------------------------------- */

.feedback {
  display: grid;
  gap: 0.9rem;
  justify-items: start;
  margin-top: clamp(3rem, 6vw, 4.5rem);
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
}
.feedback__q {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.feedback__actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.feedback__thanks { font-size: var(--text-sm); color: var(--accent); }

/* --- Fußbereich ----------------------------------------------------------- */

.article__foot {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  padding-bottom: var(--space-section);
}

.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(0.75rem, 1.5vw, 1.25rem);
  padding-top: clamp(1.5rem, 3vw, 2.5rem);
  border-top: 1px solid var(--line);
}
.pager__link {
  display: grid;
  gap: 0.3rem;
  padding: 1.15rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  transition: border-color var(--dur-fast) linear, background-color var(--dur-fast) linear;
}
.pager__link:hover { border-color: var(--line-hi); background: var(--surface-hi); }
.pager__link--next { text-align: right; }
.pager__dir {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.pager__title { font-size: var(--text-base); font-weight: 600; color: var(--ink); }

/* --- Verwandte Artikel ------------------------------------------------------ */

.related h2 {
  margin-bottom: 1rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.related__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: clamp(0.75rem, 1.5vw, 1rem);
}
.related__card {
  position: relative;
  display: grid;
  gap: 0.35rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
  transition: border-color var(--dur-fast) linear, background-color var(--dur-fast) linear;
}
.related__card::after {
  content: '';
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-mid) var(--ease-out-expo);
}
.related__card:hover::after { transform: scaleX(1); }
.related__card:hover { border-color: var(--line-hi); background: var(--surface-hi); }

.related__cat {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--track-wide);
  text-transform: uppercase;
  color: var(--accent);
}
.related__title { font-size: var(--text-base); font-weight: 600; color: var(--ink); line-height: 1.35; }
.related__time { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--ink-mute); }

.backlink {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--ink-mute);
  transition: color var(--dur-fast) linear, gap var(--dur-fast) var(--ease-out-expo);
}
.backlink:hover { color: var(--accent); gap: 0.85rem; }
.backlink svg { width: 1rem; height: 1rem; }

/* --- Umbrüche -------------------------------------------------------------- */

@media (max-width: 66rem) {
  .article__grid { grid-template-columns: 1fr; }
  .article__aside { position: static; }
  .toc { border-left: 0; padding-left: 0; }
  .toc a.is-active::before { display: none; }
  .toc a.is-active { padding-left: 0; }
}
@media (max-width: 44rem) {
  .pager { grid-template-columns: 1fr; }
  .pager__link--next { text-align: left; }
}