/* ==========================================================================
   Guide-Layout — Ratgeber-Langtext mit Sticky-Inhaltsverzeichnis
   Wird von den Wissensseiten (Funktionsweise, Technik, Kosten, Vorteile)
   über $page_css = 'guide.css' geladen.
   ========================================================================== */

.guide-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 1024px) {
  .guide-grid {
    grid-template-columns: 16rem minmax(0, 1fr);
    gap: 4rem;
    align-items: start;
  }
}

/* Inhaltsverzeichnis-Spalte */
.guide-aside { display: none; }
@media (min-width: 1024px) {
  .guide-aside { display: block; }
  .toc {
    position: sticky;
    top: 6rem;
    max-height: calc(100vh - 8rem);
    overflow-y: auto;
    padding-bottom: 1rem;
  }
}

/* Schlüssel-Kennzahlen im Fließtext (z. B. Wirkungsgrad, Förderhöhe) */
.key-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--color-stone-200, #e7e5e4);
  border: 1px solid var(--color-stone-200, #e7e5e4);
  border-radius: 1rem;
  overflow: hidden;
  margin-block: 2rem;
}
@media (min-width: 640px) {
  .key-figures { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.key-figure { background: #fff; padding: 1.25rem 1.1rem; }
.key-figure .kf-value {
  font-family: var(--font-heading);
  font-optical-sizing: auto;
  font-weight: 600;
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  line-height: 1;
  color: var(--color-primary-700);
  letter-spacing: -0.02em;
}
.key-figure .kf-label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.82rem;
  color: var(--color-stone-500, #78716c);
  line-height: 1.35;
}

/* Info-/Merkkasten im Fließtext */
.callout {
  border: 1px solid var(--color-primary-100);
  background: var(--color-primary-50);
  border-radius: 1rem;
  padding: 1.4rem 1.5rem;
  margin-block: 2rem;
}
.callout h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--color-primary-900);
  margin: 0 0 0.5rem;
}
.callout p { margin: 0; color: var(--color-primary-900); }
.callout.callout-ember {
  border-color: var(--color-ember-200);
  background: var(--color-ember-50);
}
.callout.callout-ember h3 { color: var(--color-ember-900); }
.callout.callout-ember p { color: var(--color-ember-900); }

/* Datenblatt-Tabelle (Gerätevergleich) */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
  margin-block: 1.5rem;
}
.spec-table caption {
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--color-primary-900);
  margin-bottom: 0.75rem;
}
.spec-table th,
.spec-table td {
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--color-stone-200, #e7e5e4);
  vertical-align: top;
}
.spec-table thead th {
  background: var(--color-primary-50);
  color: var(--color-primary-900);
  font-weight: 600;
  white-space: nowrap;
}
.spec-table tbody th {
  font-weight: 600;
  color: var(--color-primary-900);
}
.spec-table tbody tr:hover td,
.spec-table tbody tr:hover th { background: var(--color-stone-50, #fafaf9); }
.spec-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* Zwei-Spalten-Gegenüberstellung (Vor-/Nachteile) */
.pro-con {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-block: 2rem;
}
@media (min-width: 640px) { .pro-con { grid-template-columns: 1fr 1fr; } }
.pro-con .pc-card {
  border-radius: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--color-stone-200, #e7e5e4);
}
.pro-con .pc-pro { background: var(--color-primary-50); border-color: var(--color-primary-100); }
.pro-con .pc-con { background: var(--color-stone-50, #fafaf9); }
.pro-con h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.15rem;
  margin: 0 0 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.pro-con .pc-pro h3 { color: var(--color-primary-800); }
.pro-con .pc-con h3 { color: var(--color-stone-700, #44403c); }
.pro-con ul { list-style: none; margin: 0; padding: 0; }
.pro-con li {
  position: relative;
  padding-left: 1.6rem;
  margin-block: 0.55rem;
  color: var(--color-stone-700, #44403c);
  line-height: 1.5;
}
.pro-con .pc-pro li::before,
.pro-con .pc-con li::before {
  position: absolute;
  left: 0;
  top: 0.05em;
  font-weight: 700;
}
.pro-con .pc-pro li::before { content: "＋"; color: var(--color-primary-600); }
.pro-con .pc-con li::before { content: "－"; color: var(--color-ember-700); }