/* ============================================================
   SKILLLS Fächervernetzung — Seiten-CSS
   Sketching-Stil, Lila als Produktfarbe
   ============================================================ */

/* ── SKIP LINK ── */
.skip-link {
  position: absolute; top: -100px; left: 1rem;
  background: var(--color-black); color: white;
  padding: 0.75rem 1.25rem; border-radius: 4px;
  font-weight: 600; z-index: 9999; transition: top 200ms ease;
  text-decoration: none;
}
.skip-link:focus { top: 1rem; }

/* ── CONTAINER & SECTIONS ── */
.sf-container {
  width: 100%; max-width: var(--max-width);
  margin-inline: auto; padding-inline: 2rem;
}
.sf-section { padding-block: 5rem; }
.sf-section--light { background: #fafafa; }

.sf-section-label {
  display: inline-block;
  font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--color-faechervernetzung);
  border: 1.5px solid var(--color-faechervernetzung);
  background: #eeecf8;
  padding: 0.2rem 0.5rem; border-radius: 2px;
  margin-bottom: 0.75rem;
}

.sf-section-sub {
  color: #555; font-size: 1.05rem;
  margin-bottom: 3rem; max-width: 600px;
  margin-top: 0.5rem;
}

/* ── HERO ── */
.sf-hero {
  background: white;
  padding-block: 6rem 5rem;
  border-bottom: 2px solid var(--color-black);
}
.sf-hero__inner { max-width: 780px; }

.sf-tag {
  display: inline-block;
  font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--color-faechervernetzung);
  border: 1.5px solid var(--color-faechervernetzung);
  background: #eeecf8;
  padding: 0.2rem 0.6rem; border-radius: 2px;
  margin-bottom: 1rem;
}

.sf-hero__title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700; line-height: 1.15;
  color: var(--color-black);
  margin: 0.75rem 0 1.5rem;
}

.sf-underline {
  text-decoration: underline;
  text-decoration-color: var(--color-faechervernetzung);
  text-decoration-thickness: 4px;
  text-underline-offset: 0.18em;
  text-decoration-skip-ink: none;
}

.sf-hero__sub {
  font-size: 1.15rem; color: #444;
  line-height: 1.7; max-width: 620px;
  margin-bottom: 2.5rem;
}

.sf-hero__actions {
  display: flex; gap: 1rem; flex-wrap: wrap; align-items: center;
}

/* ── SKETCH CARD ── */
.sf-sketch-card {
  background: white;
  border: 2px solid var(--color-black);
  border-radius: 2px;
  padding: 2rem;
  box-shadow: 5px 5px 0px 0px rgba(0,0,0,0.12);
}

.sf-sketch-card h2 {
  font-size: 1.6rem; font-weight: 700;
  color: var(--color-black);
  display: inline-block;
  border-bottom: 3px solid var(--color-faechervernetzung);
  padding-bottom: 0.2rem;
  margin: 0.5rem 0 1.25rem;
  line-height: 1.3;
}

.sf-sketch-card h3 {
  font-size: 1.1rem; font-weight: 700;
  color: var(--color-black);
  border-bottom: 2px solid var(--color-faechervernetzung);
  display: inline-block;
  padding-bottom: 0.1rem;
  margin: 0 0 1rem;
}

.sf-sketch-card p {
  color: #333; line-height: 1.7;
  font-size: 1rem; margin: 0 0 1rem;
}

.sf-sketch-card--center {
  text-align: center; max-width: 780px; margin-inline: auto;
}

.sf-sketch-card--dark {
  background: var(--color-black);
  border-color: var(--color-black);
  box-shadow: 5px 5px 0px 0px rgba(0,0,0,0.3);
}
.sf-sketch-card--dark h2 {
  color: white;
  border-bottom-color: var(--color-faechervernetzung);
}
.sf-sketch-card--dark p { color: #ccc; }

/* ── CHECK-LISTE ── */
.sf-check-list {
  list-style: none; padding: 0;
  margin: 1rem 0 0;
  display: flex; flex-direction: column; gap: 0.6rem;
  text-align: left;
}
.sf-check-list li {
  font-size: 1rem; color: #333;
  padding-left: 1.5rem;
  position: relative; line-height: 1.5;
}
.sf-check-list li::before {
  content: '✓';
  position: absolute; left: 0;
  color: var(--color-faechervernetzung);
  font-weight: 700;
}

/* ── ZWEI-SPALTEN ── */
.sf-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.sf-two-col h2 {
  font-size: 1.6rem; font-weight: 700;
  color: var(--color-black);
  border-bottom: 3px solid var(--color-faechervernetzung);
  display: inline-block;
  padding-bottom: 0.2rem;
  margin: 0.5rem 0 1rem;
  line-height: 1.3;
}
.sf-two-col p { color: #333; line-height: 1.7; margin-bottom: 1rem; }

/* ── SCHRITTE ── */
.sf-steps {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: 2rem;
}

.sf-step {
  flex: 1;
  background: white;
  border: 2px solid var(--color-black);
  border-radius: 2px;
  padding: 1.75rem;
  box-shadow: 4px 4px 0px 0px rgba(0,0,0,0.12);
}

.sf-step__number {
  font-size: 2.5rem; font-weight: 700;
  color: var(--color-faechervernetzung);
  line-height: 1; margin-bottom: 0.75rem;
  display: inline-block;
  border-bottom: 3px solid var(--color-accent);
}

.sf-step h3 {
  font-size: 1rem; font-weight: 700;
  color: var(--color-black);
  margin: 0 0 0.5rem;
}

.sf-step p {
  font-size: 0.9rem; color: #444;
  line-height: 1.6; margin: 0;
}

.sf-step__connector {
  flex-shrink: 0; width: 2rem; height: 2px;
  background: var(--color-black); margin-top: 3.5rem;
  position: relative;
}
.sf-step__connector::after {
  content: '';
  position: absolute; right: -1px; top: -5px;
  width: 0; height: 0;
  border-left: 8px solid var(--color-black);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}

/* ── PILOTPROJEKT ── */
.sf-pilot-card {
  display: flex;
  align-items: center;
  gap: 3rem;
  margin-top: 1rem;
}

.sf-pilot-card__content { flex: 1; }
.sf-pilot-card__content p { margin-bottom: 1.5rem; }

.sf-pilot-card__badge {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sf-badge-big {
  display: inline-block;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-faechervernetzung);
  border: 3px solid var(--color-faechervernetzung);
  border-radius: 2px;
  padding: 1rem 1.5rem;
  box-shadow: 4px 4px 0px 0px rgba(101,89,158,0.25);
  letter-spacing: 0.02em;
}

/* ── PARTNER GRID ── */
.sf-partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  margin-top: 2rem;
}

.sf-partner-card {
  display: flex;
  align-items: center;
  justify-content: center;
  background: white;
  border: 2px solid var(--color-black);
  border-radius: 2px;
  padding: 1.25rem 1.5rem;
  box-shadow: 4px 4px 0px 0px rgba(0,0,0,0.10);
  transition: box-shadow 150ms ease, transform 150ms ease;
  text-decoration: none;
  min-width: 160px;
}

.sf-partner-card:hover {
  box-shadow: 2px 2px 0px 0px rgba(0,0,0,0.10);
  transform: translate(2px, 2px);
}

.sf-partner-card--no-link {
  cursor: default;
  opacity: 0.7;
}
.sf-partner-card--no-link:hover {
  box-shadow: 4px 4px 0px 0px rgba(0,0,0,0.10);
  transform: none;
}

.sf-partner-card img {
  max-width: 200px;
  max-height: 110px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(20%);
  transition: filter 150ms ease;
}

.sf-partner-card:hover img {
  filter: grayscale(0%);
}

/* ── BUTTONS ── */
.sf-btn {
  display: inline-flex; align-items: center;
  padding: 0.75rem 1.5rem; min-height: 44px;
  font-family: var(--font-sans); font-size: 0.95rem; font-weight: 600;
  border: 2px solid var(--color-black); border-radius: 2px;
  cursor: pointer; text-decoration: none;
  transition: all 150ms ease;
  box-shadow: 3px 3px 0px 0px rgba(0,0,0,0.2);
}
.sf-btn:focus-visible {
  outline: 3px solid var(--color-accent); outline-offset: 3px;
}
.sf-btn:hover {
  box-shadow: 1px 1px 0px 0px rgba(0,0,0,0.15);
  transform: translate(2px, 2px);
}

.sf-btn--primary { background: var(--color-black); color: white; }
.sf-btn--outline { background: transparent; color: var(--color-black); }
.sf-btn--outline:hover { background: var(--color-black); color: white; }

.sf-btn--purple {
  background: var(--color-faechervernetzung);
  border-color: #4a3f8a; color: white;
}
.sf-btn--purple:hover { background: #4a3f8a; color: white; }

.sf-btn--light {
  background: transparent; border-color: white; color: white;
}
.sf-btn--light:hover { background: white; color: var(--color-black); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .sf-steps {
    flex-direction: column; gap: 1rem;
  }
  .sf-step__connector {
    width: 2px; height: 1.5rem;
    margin: 0 0 0 2rem;
  }
  .sf-step__connector::after {
    right: -5px; top: auto; bottom: -1px;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 8px solid var(--color-black);
    border-bottom: none;
  }
  .sf-two-col { grid-template-columns: 1fr; gap: 2rem; }
  .sf-pilot-card { flex-direction: column; gap: 1.5rem; }
}

@media (max-width: 768px) {
  .sf-hero { padding-block: 4rem 3rem; }
  .sf-section { padding-block: 3rem; }
  .sf-hero__actions { flex-direction: column; align-items: flex-start; }
  .sf-partner-grid { gap: 1rem; }
}

@media (max-width: 480px) {
  .sf-container { padding-inline: 1.25rem; }
}