/*! Urheber: Steve Wagner, toolranzen.de — 2026. Jede Nutzung außerhalb von toolranzen.de bedarf der Erlaubnis. */

.lf-tool {
  --lf-radius: var(--radius-lg);
  --lf-m: var(--color-primary-ink);
  --lf-n: var(--color-secondary-ink);
}

.lf-tool .lf-box {
  margin: var(--space-md) 0;
  padding: var(--space-md);
  border-radius: var(--lf-radius);
  background: var(--color-surface-warm);
}
@media (max-width: 759px) {
  .lf-tool .lf-box { padding: var(--space-sm); margin-inline: calc(-1 * var(--space-md)); border-radius: var(--radius-md); }
}
.lf-tool .lf-raster {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  align-items: start;
}
@media (min-width: 760px) {
  .lf-tool .lf-raster { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}
.lf-tool .lf-spalte { display: flex; flex-direction: column; gap: var(--space-md); min-width: 0; }

.lf-tool .lf-canvas-wrap {
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.lf-tool .lf-canvas {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  touch-action: manipulation;
}
.lf-tool .lf-canvas--klick { cursor: crosshair; }
.lf-tool .lf-canvas--klick:focus-visible { outline-offset: -4px; }
.lf-tool .lf-canvas-text {
  margin: var(--space-xs) 0 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.lf-tool .lf-term {
  margin: 0;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--fw-bold);
  letter-spacing: .01em;
  text-align: center;
  color: var(--color-text);
}
.lf-tool .lf-term--klein { font-size: var(--text-lg); }
.lf-tool .lf-m { color: var(--lf-m); }
.lf-tool .lf-n { color: var(--lf-n); }
.lf-tool .lf-g { color: var(--color-info); }

.lf-tool .cms-range-field--m output,
.lf-tool .cms-range--m { color: var(--lf-m); accent-color: var(--lf-m); }
.lf-tool .cms-range-field--n output,
.lf-tool .cms-range--n { color: var(--lf-n); accent-color: var(--lf-n); }

.lf-tool .lf-gleichung {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs) var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: var(--fw-semi);
}
.lf-tool .lf-gleichung .tr-field { display: inline-block; }
.lf-tool .lf-gleichung .tr-field input { width: 4.4rem; padding-inline: .4rem; text-align: center; }
.lf-tool .lf-gleichung .tr-field-label { font-size: var(--text-xs); }

.lf-tool .lf-punkt {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--space-xs);
}
.lf-tool .lf-punkt .tr-field input { width: 5rem; text-align: center; }
.lf-tool .lf-punkt__name { font-family: var(--font-display); font-weight: var(--fw-bold); padding-bottom: .6rem; }

.lf-tool .lf-knoepfe { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.lf-tool .lf-knoepfe .tr-btn[aria-pressed="true"] {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}
.lf-tool .lf-stat {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
  justify-content: space-between;
}
.lf-tool .lf-stat__wert {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: var(--text-lg);
}

.lf-tool .lf-feedback {
  margin: var(--space-sm) 0 0;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-weight: var(--fw-semi);
  background: var(--color-surface-2);
  color: var(--color-text);
}
.lf-tool .lf-feedback[hidden] { display: none; }
.lf-tool .lf-gleichung[hidden],
.lf-tool .lf-punkt[hidden],
.lf-tool .lf-rechenweg[hidden],
.lf-tool .lf-tabelle tr[hidden] { display: none; }
.lf-tool .lf-feedback.is-success {
  background: color-mix(in srgb, var(--color-success) 18%, var(--color-surface));
  color: color-mix(in srgb, var(--color-success) 70%, black);
}
.lf-tool .lf-feedback.is-error {
  background: color-mix(in srgb, var(--color-error) 14%, var(--color-surface));
  color: color-mix(in srgb, var(--color-error) 72%, black);
}
.lf-tool .lf-feedback.is-info {
  background: color-mix(in srgb, var(--color-info) 16%, var(--color-surface));
  color: color-mix(in srgb, var(--color-info) 70%, black);
}

.lf-tool .lf-tabelle {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-family: var(--font-display);
}
.lf-tool .lf-tabelle th,
.lf-tool .lf-tabelle td {
  padding: var(--space-xs) var(--space-sm);
  text-align: center;
  border: 1px solid var(--color-border);
}
.lf-tool .lf-tabelle th { background: var(--color-surface-2); font-weight: var(--fw-semi); }
.lf-tool .lf-tabelle th:first-child,
.lf-tool .lf-tabelle td:first-child { font-weight: var(--fw-bold); }
.lf-tool .lf-tabelle input {
  width: 4.5rem;
  min-height: 44px;
  padding: .3rem .4rem;
  text-align: center;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
}
.lf-tool .lf-tabelle td.is-richtig { background: color-mix(in srgb, var(--color-success) 18%, var(--color-surface)); }
.lf-tool .lf-tabelle td.is-falsch { background: color-mix(in srgb, var(--color-error) 14%, var(--color-surface)); }
.lf-tool .lf-tabelle td.is-loesung { color: var(--color-text-muted); font-style: italic; }
.lf-tool .lf-tabelle-scroll { overflow-x: auto; }

.lf-tool .lf-rechenweg {
  margin: 0;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  list-style: none;
  counter-reset: lf-schritt;
}
.lf-tool .lf-rechenweg li {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-xs) 0;
  font-family: var(--font-display);
  font-size: var(--text-base);
  line-height: 1.5;
}
.lf-tool .lf-rechenweg li + li { border-top: 1px solid var(--color-border); }
.lf-tool .lf-rechenweg li::before {
  counter-increment: lf-schritt;
  content: counter(lf-schritt);
  flex: 0 0 1.6rem;
  height: 1.6rem;
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  font-weight: var(--fw-bold);
  display: inline-flex; align-items: center; justify-content: center;
}
.lf-tool .lf-rechenweg li:last-child { font-weight: var(--fw-bold); }
.lf-tool .lf-rechenweg[hidden] { display: none; }

.lf-tool .lf-situation {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}
.lf-tool .lf-situation h3 { margin: 0 0 var(--space-xs); font-size: var(--text-lg); }
.lf-tool .lf-situation p { margin: 0 0 var(--space-sm); }
.lf-tool .lf-zuordnung {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-xs) var(--space-sm);
  margin: 0;
  font-size: var(--text-sm);
}
.lf-tool .lf-zuordnung dt { font-family: var(--font-display); font-weight: var(--fw-bold); }
.lf-tool .lf-zuordnung dt.lf-m { color: var(--lf-m); }
.lf-tool .lf-zuordnung dt.lf-n { color: var(--lf-n); }
.lf-tool .lf-zuordnung dd { margin: 0; }
.lf-tool .lf-frage {
  margin: var(--space-sm) 0;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--fw-semi);
}
.lf-tool .lf-antwort { display: flex; flex-wrap: wrap; align-items: flex-end; gap: var(--space-sm); }
.lf-tool .lf-antwort .tr-field input { width: 8rem; }
.lf-tool .lf-antwort .tr-field-label,
.lf-tool .lf-punkt .tr-field-label,
.lf-tool .lf-gleichung .tr-field-label {
  display: block;
  margin-bottom: .2rem;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.lf-tool .lf-optionen {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  margin: 0 0 var(--space-sm);
}
.lf-tool .lf-optionen label { display: inline-flex; align-items: center; gap: .4rem; min-height: 44px; }
.lf-tool .lf-aufgaben {
  margin: var(--space-md) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: lf-aufgabe;
}
.lf-tool .lf-aufgabe {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}
.lf-tool .lf-aufgabe + .lf-aufgabe { margin-top: var(--space-sm); }
.lf-tool .lf-aufgabe__text { margin: 0; }
.lf-tool .lf-aufgabe__text::before {
  counter-increment: lf-aufgabe;
  content: "Aufgabe " counter(lf-aufgabe) ": ";
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
}
.lf-tool .lf-aufgabe__loesung {
  margin: var(--space-sm) 0 0;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-success) 14%, var(--color-surface));
  font-size: var(--text-sm);
}
.lf-tool .lf-aufgabe__loesung[hidden] { display: none; }
.lf-tool .lf-gitter { display: block; width: 100%; max-width: 260px; height: auto; margin-top: var(--space-sm); }
.lf-tool .lf-leer { color: var(--color-text-muted); font-style: italic; }

@media (prefers-reduced-motion: reduce) {
  .lf-tool * { transition: none !important; animation: none !important; }
}

/* Urheber: Steve Wagner, toolranzen.de — 2026. Jede Nutzung außerhalb von toolranzen.de bedarf der Erlaubnis. */