/* ==========================================================================
   page-erklaerfilm.css · /ki-erklaerfilm
   Nur Komposition dieser Seite. Komponenten (Monitor, .proof, .wcard, .sheet,
   .acc-list, .loopfig, .rev-strip, .inq, Formular, .pill) kommen aus site.css.
   System wie /ki-filmproduktion und /ki-werbevideo: Hero Text links, Monitor rechts;
   Call-Sheet auf Sand; Kundenfall auf Petrol.
   Signatur dieser Seite: „Begriff → Bild“ (.ef-term): ein Datenblatt-Begriff und
   das Bild, das der Film daraus macht. Statisch, keine eigene Bewegung.
   ========================================================================== */

/* ---------- Hero: Text links, Monitor rechts ---------- */
.ef-hero { padding-block: clamp(1.25rem, 2.5vw, 2rem) clamp(2.25rem, 4.5vw, 3.5rem); }
.ef-hero .crumbs { margin-bottom: clamp(0.75rem, 2.5vw, 2rem); }
.ef-hero-grid { display: grid; gap: 2.25rem; align-items: center; }
@media (min-width: 1000px) { .ef-hero-grid { grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: clamp(2.5rem, 4.5vw, 4.5rem); } }
.ef-hero-copy { display: grid; justify-items: start; min-width: 0; }
.ef-hero .slate { margin-bottom: 1.1rem; }
.ef-hero .h1 { font-size: clamp(2.15rem, 3.7vw, 3.35rem); max-width: 14em; }
.ef-hero .lead { margin-top: 1.25rem; max-width: 31em; }
.ef-hero .hero-ctas { margin-top: clamp(1.25rem, 2.5vw, 1.75rem); }

/* Preis-Pill: Preis groß, Zielgruppe in Mono; Haarlinien-Rahmen, Phosphor-Strich wie bei .slate */
.ef-price {
  display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: 0.35rem 0.85rem;
  margin-top: clamp(1.4rem, 2.8vw, 1.9rem); padding: 0.6rem 1rem 0.65rem;
  border: 1px solid var(--line); border-radius: 2px;
}
.ef-price::before { content: ""; width: 1.25rem; height: 1.5px; background: var(--accent); align-self: center; flex: none; }
.ef-price-v { display: inline-flex; align-items: baseline; gap: 0.4rem; font-size: var(--t-small); color: var(--muted); white-space: nowrap; }
.ef-price-v .ab { color: var(--muted); }
.ef-price-v b { font-size: clamp(1.6rem, 2.4vw, 2.1rem); font-weight: 900; letter-spacing: -0.03em; line-height: 1; color: var(--ink); font-variant-numeric: tabular-nums; }
.ef-price-sep { color: var(--muted); }
.ef-price-k { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 459px) { .ef-price-sep { display: none; } .ef-price-k { flex-basis: 100%; } }

/* Konzept-Check: eine Zeile unter dem Haupt-CTA, leiser als die Knöpfe; gleiche Optik wie /ki-werbevideo, /ki-filmproduktion, Kosten (Integration 14.10.) */
.ef-check { margin-top: 0.6rem; max-width: 34em; font-size: var(--t-small); line-height: 1.5; }
.ef-check a {
  display: inline-block; padding-block: 0.45rem; color: var(--ink); font-weight: 600;
  text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 1.5px; text-underline-offset: 0.3em;
}
.ef-check a:hover { text-decoration-thickness: 2.5px; }
.ef-check .arr { display: inline-block; transition: transform var(--d-ui) var(--ease-out); }
.ef-check a:hover .arr { transform: translateX(3px); }

/* ---------- 01 Umfang (Sand): Call-Sheet links, „Wie die Technik korrekt bleibt“ rechts ---------- */
.ef-umfang { display: grid; gap: clamp(2.75rem, 6vw, 4rem); }
@media (min-width: 1000px) { .ef-umfang { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(3rem, 5vw, 5.5rem); align-items: start; } }
.ef-umfang-main { display: grid; gap: 1.25rem; justify-items: start; min-width: 0; }
.ef-umfang-main .h2 { max-width: 14em; }
.ef-sheet-top {
  display: flex; justify-content: space-between; gap: 1rem; width: 100%; margin-top: 0.75rem; padding: 0.55rem 0;
  border-top: 2px solid var(--ink);
  font-family: var(--f-mono); font-size: var(--t-micro); font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
}
.ef-sheet { width: 100%; border-top-color: var(--line); }
.ef-sheet .is-price dd { display: grid; justify-items: start; gap: 0.35rem; }
.ef-p { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.5rem; }
.ef-sheet .is-price b { font-size: clamp(1.9rem, 2.8vw, 2.5rem); font-weight: 900; letter-spacing: -0.03em; line-height: 1; font-variant-numeric: tabular-nums; }

.ef-true { display: grid; gap: 1rem; align-content: start; padding-top: 1.1rem; border-top: 2px solid var(--accent); min-width: 0; }
@media (min-width: 1000px) { .ef-true { margin-top: clamp(4.5rem, 7vw, 6.25rem); position: sticky; top: calc(var(--head-h) + 2rem); } }
.ef-true-p { padding-bottom: 0.85rem; border-bottom: 1px solid var(--line); }

/* ---------- 02 Kundenfall (Petrol): Karte + „Begriff → Bild“ ---------- */
.ef-case { display: grid; gap: clamp(2rem, 4vw, 3rem); }
@media (min-width: 900px) { .ef-case { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(2rem, 4vw, 4rem); align-items: start; } }
.ef-case-card { min-width: 0; }
.ef-case-note { margin-top: clamp(1.75rem, 3.5vw, 2.5rem); padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: var(--t-small); max-width: 44em; }

/* Signatur: Datenblatt-Begriff oben, darunter das Bild, das der Film daraus macht */
.ef-term { display: grid; gap: 0; min-width: 0; }
.ef-term-k, .ef-term figcaption { display: grid; gap: 0.3rem; padding: 0.85rem 0; }
.ef-term-k { border-top: 2px solid var(--ink); }
.ef-term-l { font-family: var(--f-mono); font-size: var(--t-micro); font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.ef-term-w { font-size: clamp(1.35rem, 2.2vw, 1.85rem); font-weight: 800; letter-spacing: -0.02em; line-height: 1.1; }
.ef-term-img { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #050a0a; border: 1px solid var(--line); }
.ef-term-img img { width: 100%; height: 100%; object-fit: cover; }
.ef-term-img .finder { inset: 6% 3.5%; }
.ef-term-img .finder i { width: 1rem; height: 1rem; }
.ef-term-img .tag--ai { position: absolute; left: 0.75rem; bottom: 0.75rem; }
.ef-term figcaption { border-bottom: 1px solid var(--line); color: var(--ink); font-weight: 600; line-height: 1.4; }

/* ---------- 03 Ablauf (Sand): vier Schritte links, Loop-Figur rechts ---------- */
.ef-flow { display: grid; gap: clamp(2.5rem, 5vw, 3.5rem); }
@media (min-width: 1000px) {
  .ef-flow { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(3rem, 6vw, 6rem); align-items: start; }
  .ef-sf { position: sticky; top: calc(var(--head-h) + 2rem); }
}
.ef-flow-main { display: grid; gap: clamp(1.5rem, 3vw, 2rem); min-width: 0; }
.ef-steps { display: grid; border-top: 2px solid var(--ink); }
.ef-steps li {
  display: grid; grid-template-columns: 2.25rem minmax(0, 1fr) auto; gap: 0.75rem; align-items: baseline;
  padding: 1rem 0; border-bottom: 1px solid var(--line);
}
.ef-steps b { font-size: clamp(1.1rem, 1.6vw, 1.35rem); font-weight: 700; letter-spacing: -0.01em; line-height: 1.3; }
.ef-step-n { font-family: var(--f-mono); font-size: 0.8rem; font-weight: 500; letter-spacing: 0.06em; color: var(--accent); font-variant-numeric: tabular-nums; }
.ef-step-k {
  display: inline-flex; align-items: center; gap: 0.45rem; font-family: var(--f-mono); font-size: var(--t-micro); font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); white-space: nowrap;
}
.ef-step-k::before { content: ""; width: 0.45rem; height: 0.45rem; background: var(--accent); transform: rotate(45deg); }
@media (max-width: 459px) {
  .ef-steps li { grid-template-columns: 2.25rem minmax(0, 1fr); }
  .ef-step-k { grid-column: 2; }
}
.ef-steps-deep { border-top: 0; }
.ef-steps-deep .acc-body b { color: var(--ink); }
.ef-sf .loopfig { border: 1px solid var(--line); }
.ef-sf .finder { inset: 6% 3.5%; }
.ef-sf .finder i { width: 1.1rem; height: 1.1rem; }

/* ---------- Im Detail (Petrol): fünf Blöcke als Anhang ---------- */
.ef-deep .slate { margin-bottom: clamp(1rem, 2vw, 1.5rem); }
.ef-deep .acc-body b { color: var(--ink); }
.ef-uses { display: grid; gap: 0.45rem; }
.ef-uses li { display: flex; gap: 0.7rem; }
.ef-uses li::before { content: ""; width: 0.4rem; height: 0.4rem; margin-top: 0.65em; background: var(--accent); flex: none; }

/* ---------- Fragen (Petrol): Kopf klebt links ---------- */
.ef-faq .split { align-items: start; }
.ef-faq .col .link { white-space: normal; line-height: 1.35; }
.ef-more { display: grid; gap: 0.55rem; }
@media (min-width: 900px) { .ef-faq .col { position: sticky; top: calc(var(--head-h) + 2rem); } }

/* ---------- Anfrage: Klappe + Kicker über dem Modul ---------- */
.inq-main { display: grid; align-content: start; }
.inq-head .slate { margin-bottom: -0.15rem; }