/* ===========================
   PROJECT DETAIL
   =========================== */

.project-hero {
  position: relative;
  height: auto;
  padding: 10px 0 40px;
  border-bottom: 1px solid var(--line);
}

.project-hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(255, 255, 255, .92), rgba(255, 255, 255, .55)),
    radial-gradient(1000px 500px at 60% 30%, rgba(0, 0, 0, .06), transparent 60%),
    linear-gradient(135deg, rgba(0, 0, 0, .03), rgba(0, 0, 0, .01));
}

.project-hero__content {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 220px;
}

.project-title {
  margin: 0;
  font-size: clamp(32px, 5vw, 52px);
  letter-spacing: -0.03em;
}

.project-subtitle {
  margin-top: 8px;
  color: var(--muted);
}

/* Ok butonunun altındaki ayracı oka yaklaştır */
.project-hero + .section {
  padding-bottom: 44px;
}

.project-layout {
  max-width: 1200px;
  margin: 0 auto;
}

/* --- Description: "Devamını oku" (kısalt/expand) --- */

.project-desc {
  position: relative;
}

.project-desc__content {
  position: relative;
  overflow-wrap: anywhere;
  word-break: break-word;
  hyphens: auto;
}

.project-desc.is-collapsed .project-desc__content {
  max-height: 220px;
  overflow: hidden;
}

.project-desc__fade {
  display: none;
}

.project-desc.is-collapsed .project-desc__fade {
  display: block;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 150px;
  pointer-events: none;
  background: linear-gradient(to bottom,
      rgba(255, 255, 255, 0),
      rgba(255, 255, 255, 0.72),
      rgba(255, 255, 255, 1));
  z-index: 1;
}

.project-desc__toggle {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(18, 18, 18, .12);
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(10px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, .10);
  cursor: pointer;
  display: grid;
  place-items: center;
  padding: 0;
  opacity: 0;
  transition: opacity 180ms ease, transform 240ms cubic-bezier(.22, .61, .36, 1);
  position: relative;
  z-index: 2;
}

/* Ok ikonu */
.project-desc__toggle::before {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 2px solid rgba(18, 18, 18, .72);
  border-bottom: 2px solid rgba(18, 18, 18, .72);
  transform: rotate(45deg);
}

/* Kısaltılmışken ok: fade alanının ortasında */
.project-desc.is-collapsed .project-desc__toggle {
  position: absolute;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%) rotate(0deg);
  pointer-events: none;
}

.project-desc.is-collapsed:hover .project-desc__toggle,
.project-desc.is-collapsed:focus-within .project-desc__toggle {
  opacity: 1;
  pointer-events: auto;
}

/* Açıkken ok: aşağıda, ters dönsün */
.project-desc:not(.is-collapsed) .project-desc__toggle {
  position: relative;
  left: 50%;
  margin-top: 18px;
  margin-bottom: -10px;
  transform: translateX(-50%) translateY(6px) rotate(180deg);
  opacity: 1;
  pointer-events: auto;
}

/* Mobilde hover olmadığı için ok hep görünsün */
@media (hover: none) {
  .project-desc.is-collapsed .project-desc__toggle {
    opacity: 1;
    pointer-events: auto;
  }
}

/* --- Detail gallery: TEK SÜTUN, BÜYÜK FOTOĞRAFLAR --- */

.detail-gallery {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 64px;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.detail-gallery .gallery-img-wrap {
  position: relative;
  border-radius: var(--r-16);
  overflow: hidden;
  background: var(--surface);
  aspect-ratio: 16 / 9;
}

.detail-gallery img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--r-16);
  border: 1px solid var(--line);
  display: block;
  cursor: zoom-in;
  transition: transform 180ms ease, filter 180ms ease;
}

.detail-gallery img:hover {
  transform: translateY(-2px);
  filter: brightness(0.96);
}

/* --- Responsive --- */

@media (max-width: 980px) {
  .detail-gallery {
    gap: 48px;
  }
}

@media (max-width: 900px) {
  .project-hero {
    padding: 40px 0 28px;
  }

  .project-hero__content {
    justify-content: flex-start;
    min-height: unset;
  }

  .project-title {
    margin-top: 0;
  }

  .project-desc.is-collapsed .project-desc__content {
    max-height: 200px;
  }

  .detail-gallery {
    gap: 48px;
  }
}