/* ============================================================
   WHG Technik – projekte.css
   Seitenspezifische Styles für projekte.html
   Setzt style.css voraus.
   ============================================================ */

/* --- SEITENHEADER ----------------------------------------- */
.page-header {
  background: var(--color-dark);
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-header__label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-green);
  margin-bottom: 1rem;
  position: relative;
}

.page-header__title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-white);
  line-height: 1.0;
  margin-bottom: 1.25rem;
  position: relative;
}

.page-header__sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.55);
  max-width: 560px;
  line-height: 1.7;
  position: relative;
}

/* --- FILTER ----------------------------------------------- */
.projekte-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid var(--color-gray-light);
  background: var(--color-white);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.02em;
}

.filter-btn:hover {
  border-color: var(--color-green);
  color: var(--color-dark);
}

.filter-btn--active {
  background: var(--color-green);
  border-color: var(--color-green);
  color: var(--color-dark);
}

/* --- PROJEKT-GRID ----------------------------------------- */
.projekte-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* --- PROJEKT-CARD ----------------------------------------- */
.projekt-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition), opacity 0.25s ease;
}

.projekt-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.09);
  transform: translateY(-3px);
}

.projekt-card--hidden {
  display: none;
}

.projekt-card__image {
  aspect-ratio: 4/3;
  background: var(--color-off-white);
  border-bottom: 1px solid var(--color-gray-light);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Foto-Platzhalter-Indikator */
.projekt-card__image::after {
  content: 'Foto folgt';
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-mid);
}

/* Wenn echtes Bild vorhanden: Platzhalter-Text ausblenden */
.projekt-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  display: block;
}

.projekt-card__image img ~ * { display: none; }

/* Amber-Overlay beim Hover */
.projekt-card__image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(232, 160, 32, 0.0);
  transition: background 0.25s ease;
  z-index: 1;
  pointer-events: none;
}

.projekt-card:hover .projekt-card__image::before {
  background: rgba(232, 160, 32, 0.08);
}

.projekt-card__body {
  padding: 1.5rem;
}

.projekt-card__cat {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-green);
  background: rgba(232,160,32,0.08);
  border: 1px solid rgba(232,160,32,0.2);
  border-radius: 2px;
  padding: 0.15rem 0.5rem;
  margin-bottom: 0.6rem;
}

.projekt-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-dark);
  margin-bottom: 0.6rem;
  line-height: 1.15;
}

.projekt-card__text {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* --- CTA -------------------------------------------------- */
.projekte-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  padding: 3rem 3.5rem;
  background: rgba(232,160,32,0.06);
  border: 1px solid rgba(232,160,32,0.2);
  border-radius: var(--radius-lg);
}

/* --- RESPONSIVE ------------------------------------------- */
@media (max-width: 1024px) {
  .projekte-grid { grid-template-columns: repeat(2, 1fr); }
  .projekte-cta { flex-direction: column; align-items: flex-start; gap: 2rem; padding: 2.5rem; }
}

@media (max-width: 768px) {
  .page-header { padding: 100px 0 48px; }
  .projekte-grid { grid-template-columns: 1fr; }
  .projekte-filter { gap: 0.4rem; }
  .filter-btn { font-size: 0.75rem; padding: 0.45rem 1rem; }
  .projekte-cta { padding: 2rem; }
}