/* ==========================================================================
   Vista City — Regelwerk
   ---------------------------------------------------------------------------
   Der vorige Entwurf war eine dreispaltige Tabelle: Nummer, Text, Strafmaß.
   Funktional, aber ohne Führung — man musste alles lesen, um irgendetwas zu
   finden. Jetzt führt die Seite: häufigste Verstöße zuerst, Filter nach
   Schweregrad, farbige Marke je Regel und am Ende, was bei einem Verstoß
   tatsächlich passiert.
   ========================================================================== */

/* --- Kopf mit Kenndaten ---------------------------------------------------- */

.rulehero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(8rem, 6rem + 6vw, 12rem) clamp(2.5rem, 4vw, 4rem);
  border-bottom: 1px solid var(--line);
}
.rulehero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -2;
  background: radial-gradient(60% 90% at 0% 100%,
    color-mix(in oklab, var(--accent) 15%, transparent), transparent 68%);
}

.rulehero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: clamp(2rem, 5vw, 4rem);
}
.rulehero__text { display: grid; gap: 1.1rem; max-width: 54rem; }
.rulehero__title { font-size: clamp(2.4rem, 1.5rem + 4vw, 5.5rem); }

/* Kenndaten wie der Aufdruck auf einem Aktendeckel. */
.rulefacts {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--line);
}
.rulefacts > div {
  display: grid;
  gap: 0.2rem;
  padding: 0.9rem 1.4rem;
  background: var(--surface);
}
.rulefacts dt {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.rulefacts dd {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
}

/* --- Schnellzugriff ---------------------------------------------------------
   Die vier Regeln, an denen die meisten scheitern — vor dem Werk selbst.
   ---------------------------------------------------------------------------- */

.quickrules { padding-block: clamp(2.5rem, 5vw, 4rem) 0; }
.quickrules__head { margin-bottom: 1.25rem; }
.quickrules__head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1rem + 1vw, 1.75rem);
  letter-spacing: var(--track-tight);
  text-transform: uppercase;
}
.quickrules__head p { margin-top: 0.35rem; color: var(--ink-mute); font-size: var(--text-sm); }

.quickrules__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: clamp(0.6rem, 1.2vw, 1rem);
}
.quickrule {
  display: grid;
  gap: 0.3rem;
  align-content: start;
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--tone, var(--line-hi));
  border-radius: var(--r-md);
  background: var(--surface);
  transition: background-color var(--dur-fast) linear, border-color var(--dur-fast) linear;
}
.quickrule:hover { background: var(--surface-hi); border-color: var(--line-hi); border-left-color: var(--tone); }
.quickrule--crit { --tone: var(--state-crit); }
.quickrule--warn { --tone: var(--state-warn); }
.quickrule--info { --tone: var(--state-info); }

.quickrule__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--tone);
}
.quickrule__title {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.quickrule__text { color: var(--ink-soft); font-size: var(--text-sm); line-height: 1.55; }

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

.rulebook {
  display: grid;
  grid-template-columns: 16rem minmax(0, 1fr);
  gap: clamp(1.5rem, 3vw, 4rem);
  align-items: start;
  padding-block: clamp(2.5rem, 5vw, 4rem) var(--space-section);
}

/* --- Verzeichnis ------------------------------------------------------------ */

.rulenav { position: sticky; top: 6.5rem; display: grid; gap: 1.5rem; }
.rulenav > h2,
.rulenav__legend h3 {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--track-wide);
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 0.75rem;
}
.rulenav nav { display: grid; gap: 0.1rem; }
.rulenav a {
  display: grid;
  grid-template-columns: 2.4rem 1fr auto;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.7rem;
  border-radius: var(--r-sm);
  font-size: var(--text-sm);
  color: var(--ink-soft);
  transition: background-color var(--dur-fast) linear, color var(--dur-fast) linear;
}
.rulenav a:hover { background: color-mix(in oklab, var(--accent) 10%, transparent); color: var(--ink); }
.rulenav a span:first-child { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); }
.rulenav__count {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--ink-mute);
}
/* Aktiver Abschnitt beim Lesen (setzt rules.js). */
.rulenav a.is-active {
  background: color-mix(in oklab, var(--accent) 14%, transparent);
  color: var(--ink);
  font-weight: 600;
}

.rulenav__legend { padding-top: 1.25rem; border-top: 1px solid var(--line); }
.legenditem {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--text-sm);
  color: var(--ink-soft);
}
.legenditem + .legenditem { margin-top: 0.45rem; }
.legenditem span {
  width: 0.7rem;
  height: 2px;
  background: var(--tone);
}
.legenditem--crit { --tone: var(--state-crit); }
.legenditem--warn { --tone: var(--state-warn); }
.legenditem--info { --tone: var(--state-info); }

/* --- Filterleiste ----------------------------------------------------------- */

.filterbar--rules {
  position: sticky;
  top: 5.25rem;
  z-index: 5;
  padding-block: 0.75rem;
  margin-bottom: 0;
  background: var(--bg);
}

/* --- Abschnitte ------------------------------------------------------------- */

.rulesection { margin-top: clamp(2.5rem, 5vw, 3.5rem); scroll-margin-top: 8rem; }
.rulesection[hidden] { display: none; }

.rulesection__head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 1rem;
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
  border-bottom: 2px solid var(--line-hi);
}
.rulesection__num {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
}
.rulesection__title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 1.1rem + 1.2vw, 2.1rem);
  line-height: 1.05;
  letter-spacing: var(--track-tight);
  text-transform: uppercase;
}
.rulesection__intro { margin-top: 0.35rem; color: var(--ink-mute); font-size: var(--text-sm); }

/* --- Einzelregel -----------------------------------------------------------
   Als Block mit farbiger Kante links: der Schweregrad ist ablesbar, bevor
   man den Text gelesen hat.
   ---------------------------------------------------------------------------- */

.rule {
  display: grid;
  gap: 0.6rem;
  padding: 1.15rem 1.35rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--tone, var(--line-hi));
  border-radius: var(--r-md);
  background: var(--surface);
  scroll-margin-top: 9rem;
  transition: background-color var(--dur-fast) linear, border-color var(--dur-fast) linear;
}
.rule + .rule { margin-top: 0.5rem; }
.rule:hover { background: var(--surface-hi); border-color: var(--line-hi); border-left-color: var(--tone); }
.rule[hidden] { display: none; }

.rule--crit { --tone: var(--state-crit); }
.rule--warn { --tone: var(--state-warn); }
.rule--info { --tone: var(--state-info); }

/* Kurz hervorgehoben, wenn man aus dem Schnellzugriff herspringt. */
.rule:target { border-color: var(--tone); background: color-mix(in oklab, var(--tone) 8%, var(--surface)); }

.rule__top {
  display: grid;
  grid-template-columns: 3rem 1fr auto;
  align-items: baseline;
  gap: 0.85rem;
}
.rule__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--tone);
}
.rule__top h3 { font-size: var(--text-base); font-weight: 700; color: var(--ink); }
.rule__sev {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tone);
}

.rule__text {
  grid-column: 1 / -1;
  padding-left: 3.85rem;
  color: var(--ink-soft);
  font-size: var(--text-sm);
  line-height: 1.7;
  max-width: 68ch;
}

/* Beispiel und Strafmaß als abgesetzte Zeilen mit vorangestelltem Label. */
.rule__example {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-left: 3.85rem;
  font-size: var(--text-sm);
}
.rule__example { color: var(--ink-mute); font-style: italic; }
.rule__example span {
  font-family: var(--font-ui);
  font-style: normal;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  min-width: 5.5rem;
}

/* Suchtreffer */
mark {
  padding: 0 0.15em;
  border-radius: 2px;
  background: color-mix(in oklab, var(--accent) 32%, transparent);
  color: inherit;
}

/* --- Stufenmodell ------------------------------------------------------------ */

.escalation {
  display: grid;
  gap: clamp(1.75rem, 3.5vw, 3rem);
  margin-top: clamp(3rem, 6vw, 5rem);
  padding: clamp(1.75rem, 4vw, 3rem);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--surface);
}
.escalation header { display: grid; gap: 0.8rem; max-width: 44ch; }
.escalation header h2 { font-size: clamp(1.5rem, 1.2rem + 1.6vw, 2.4rem); line-height: 0.98; }
.escalation header p { color: var(--ink-soft); font-size: var(--text-sm); line-height: 1.7; }

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

@media (max-width: 68rem) {
  .rulehero__inner { grid-template-columns: 1fr; align-items: start; }
  .rulefacts { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 62rem) {
  .rulebook { grid-template-columns: 1fr; }
  .rulenav { position: static; }
  .rulenav nav { grid-auto-flow: column; grid-auto-columns: minmax(9rem, 1fr); overflow-x: auto; }
  .rulenav a { grid-template-columns: 1fr; gap: 0.15rem; }
  .rulenav__count { display: none; }
  .filterbar--rules { position: static; }
}
@media (max-width: 44rem) {
  .rulefacts { grid-template-columns: repeat(2, 1fr); }
  .rule__top { grid-template-columns: 3rem 1fr; }
  .rule__sev { grid-column: 2; }
  .rule__text, .rule__example { padding-left: 0; margin-left: 0; }
}