/* ===================== WORKS PAGE ===================== */

.works {
  min-height: calc(100vh - var(--header-h));
  background: #111;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: calc(var(--header-h) + 60px) 0 60px;
}

.works__inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  gap: 40px;
}

/* ---- 왼쪽: 썸네일 영역 ---- */
.works__thumbs {
  width: 520px;
  flex: 0 0 520px;
}

.works__back {
  display: inline-block;
  color: #888;
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 1px;
  margin-bottom: 20px;
  transition: color .3s;
}

.works__back:hover {
  color: #fff;
}

.works__title {
  font-size: 28px;
  font-weight: 300;
  letter-spacing: 4px;
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.works__desc {
  font-size: 13px;
  color: #888;
  letter-spacing: 1px;
  margin-bottom: 30px;
}

.works__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.works__thumb {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 3 / 2;
  border: 2px solid transparent;
  transition: border-color .3s, transform .3s;
}

.works__thumb--portrait {
  aspect-ratio: 2 / 3;
  grid-row: span 2;
}

.works__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: brightness(.85);
  transition: filter .3s, transform .4s;
}

.works__thumb:hover img {
  filter: brightness(1);
  transform: scale(1.05);
}

.works__thumb.is-active {
  border-color: #fff;
}

.works__thumb.is-active img {
  filter: brightness(1);
}

/* ---- 오른쪽: 미리보기 영역 ---- */
.works__preview {
  flex: 1;
  position: sticky;
  top: calc(var(--header-h) + 30px);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 500px;
  background: #1a1a1a;
  border: 1px solid #333;
}

.works__preview-placeholder {
  color: #555;
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.works__preview-img {
  width: 100%;
  height: 100%;
  max-height: 80vh;
  object-fit: contain;
  cursor: pointer;
  padding: 20px;
}

/* ===================== LIGHTBOX ===================== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, .95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s, visibility .35s;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox__img-wrap {
  max-width: 98vw;
  max-height: 95vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox__img {
  max-width: 98vw;
  max-height: 95vh;
  object-fit: contain;
  user-select: none;
}

.lightbox__close {
  position: absolute;
  top: 24px;
  right: 32px;
  background: none;
  border: none;
  color: #fff;
  font-size: 36px;
  cursor: pointer;
  opacity: .7;
  transition: opacity .2s;
  line-height: 1;
}

.lightbox__close:hover { opacity: 1; }

.lightbox__prev,
.lightbox__next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #fff;
  font-size: 32px;
  cursor: pointer;
  opacity: .5;
  transition: opacity .2s;
  padding: 20px;
}

.lightbox__prev { left: 16px; }
.lightbox__next { right: 16px; }
.lightbox__prev:hover,
.lightbox__next:hover { opacity: 1; }

.lightbox__counter {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  color: #aaa;
  font-size: 14px;
  letter-spacing: 2px;
}

.lightbox__bar {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: #333;
}

.lightbox__progress {
  height: 100%;
  width: 0;
  background: #fff;
}

/* ===================== 반응형 ===================== */
@media (max-width: 1100px) {
  .works__inner {
    flex-direction: column;
  }
  .works__thumbs {
    width: 100%;
    flex: none;
  }
  .works__preview {
    position: static;
    width: 100%;
    min-height: 400px;
    order: -1;
    margin-bottom: 20px;
  }
}

@media (max-width: 640px) {
  .works {
    padding: 30px 0;
  }
  .works__inner {
    padding: 0 16px;
  }
  .works__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }
  .works__thumb--portrait {
    grid-row: span 1;
    aspect-ratio: 3 / 2;
  }
  .lightbox__prev { left: 4px; font-size: 24px; padding: 12px; }
  .lightbox__next { right: 4px; font-size: 24px; padding: 12px; }
}