/* ════════════════════════════════════
   03-room-a.css — Room A (웹 디자인 & 코딩) · 세로 스크롤, 아크릴 캡션
   ════════════════════════════════════ */
#works {
  position: relative;
  z-index: 3;
  background: var(--bg);
}
.room-a {
  background: var(--bg);
  padding: 0;
}
.room-a-hdr {
  padding: 3.5rem 2.5rem 2.5rem;
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: flex-end;
  gap: 3rem;
}
.ra-info {
  flex: 1;
}

.ra-name {
  font-size: clamp(2.4rem, 7vw, 7rem);
  font-weight: 700;
  color: var(--ink);
}


/* 세로 작품 스택 */
.v-stack {
  position: relative;
}
.v-item {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  margin: 15vh 0;
  gap: clamp(1.5rem, 4vw, 10rem);
  background: var(--bg);
  perspective: 1400px; /* 추가 — 3D 공간 깊이 */
}
/* 두 번째 작업물만 좌우 반전 — 캡션이 왼쪽, 이미지가 오른쪽 */
.v-item:nth-of-type(2) {
  flex-direction: row-reverse;
}

/* 작품 래퍼 — hover시 떠오름 + 홀로그램 외곽선 */
.v-artwork-wrap {
  position: relative;
  z-index: 2;
  flex: 0 0 auto;
  transform-style: preserve-3d;
  transform: rotateY(90deg); /* 시작: 옆면만 보이는 상태 */
  opacity: 0;
  transition:
    transform 0.9s cubic-bezier(0.34, 1.2, 0.64, 1),
    opacity 0.5s ease,
    box-shadow 0.6s ease;
}
.v-artwork-wrap::before {
  content: "";
  position: absolute;
  inset: -10px;
  border-radius: 4px;
  background: rgba(26, 23, 20, 0.5);
  transition: background 0.4s ease;
  z-index: -1;
}
.v-artwork-wrap:hover::before {
  background: linear-gradient(
    135deg,
    #e8d5ff,
    #c8e8ff,
    #c8f5e8,
    #fff5c8,
    #ffd5e8,
    #e8d5ff
  );
  background-size: 300% 300%;
  animation: holoFlow 3s ease infinite;
}
.v-artwork-wrap:hover {
  transform: translateY(-12px);
  box-shadow:
    0 36px 90px rgba(26, 23, 20, 0.38),
    0 12px 32px rgba(26, 23, 20, 0.28);
}
.v-img {
  height: 60vh; /* 작품이 화면 높이의 80% */
  width: auto;
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
}
.v-img img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.v-artwork-wrap:hover .v-img img,
.v-artwork-wrap:hover .v-img .mf {
  transform: scale(1.02);
}

/* ── 이미지 hover 오버레이 — 어두워지며 프로세스/작업물 버튼 노출 ── */
.v-img-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: rgba(26, 23, 20, 0.55);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none; /* 평소엔 클릭 방해 안 하도록, hover 시에만 auto로 전환 */
}
.v-artwork-wrap:hover .v-img-overlay {
  opacity: 1;
  pointer-events: auto;
}
.v-ov-btn {
  padding: 0.65rem 1.5rem;
  border: 1px solid #fff;
  color: #fff;
  background: transparent;
  border-radius: 5px;
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  transition:
    background 0.25s ease,
    color 0.25s ease;
}
.v-ov-btn:hover {
  background: #fff;
  color: var(--ink);
}
/* 캡션 — 아크릴 액자 */
.v-cap {
  position: relative;
  z-index: 3;
  box-sizing: border-box; /* width:100%에 padding까지 포함시켜 모바일에서 화면 밖으로 넘치는 것 방지 */
  flex: 0 0 40vh;
  padding: 2.5rem 2.5rem;
  height: 45vh;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  outline: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow:
    0 15px 45px rgba(0, 0, 0, 0.15),
    inset 0 2px 2px rgba(255, 255, 255, 0.6),
    inset 0 -2px 3px rgba(0, 0, 0, 0.08);
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 0.5s ease 0.3s,
    transform 0.5s ease 0.3s;
  overflow: hidden;
}
.v-item.lit .v-cap {
  opacity: 1;
  transform: none;
}
.v-item.lit .v-artwork-wrap {
  transform: rotateY(0deg); /* 스크롤 도달 시 정면으로 회전 */
  opacity: 1;
}
.v-artwork-wrap:hover {
  transform: rotateY(0deg) translateY(-12px); /* 기존 hover 들뜨는 효과 유지 */
  box-shadow:
    0 36px 90px rgba(26, 23, 20, 0.38),
    0 12px 32px rgba(26, 23, 20, 0.28);
}
/* 나사 4개 */
.v-cap-screw-tl,
.v-cap-screw-tr,
.v-cap-screw-bl,
.v-cap-screw-br {
  position: absolute;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #fff, #cfcfcf 55%, #333);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  z-index: 2;
}
.v-cap-screw-tl {
  top: 0.8rem;
  left: 0.8rem;
}
.v-cap-screw-tr {
  top: 0.8rem;
  right: 0.8rem;
}
.v-cap-screw-bl {
  bottom: 0.8rem;
  left: 0.8rem;
}
.v-cap-screw-br {
  bottom: 0.8rem;
  right: 0.8rem;
}

.vc-no {
    font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #a88bd8;
  margin-bottom: 1rem;
}
.vc-title {
  font-size: 1.7rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.15;
  margin-bottom: 0.3rem;
}
.vc-period {
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--ink);
  margin-bottom: 1rem;
}
.vc-type {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--ink2);
  margin-top: 1.5rem;
}
.vc-project {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  color: var(--ink2);
}
.vc-page{
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  color: var(--ink2);
}
.vc-divider {
  height: 1px;
  background: var(--rule);
  margin-bottom: 1rem;
}
.vc-tools {
  font-size: 1rem;
  color: var(--ink2);
  line-height: 1.5;
  margin-bottom: 2rem;
  letter-spacing: 0.04em;
}
.vc-btns {
  display: flex;
  gap: 0.5rem;
}
.vc-btn {
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.38rem 0.9rem;
  position: relative;
  border: 1.5px solid transparent;
  border-radius: 6px;
  color: var(--ink2);
  background: rgba(255, 255, 255, 0.5);
  background-clip: padding-box;
  text-decoration: none;
  transition: background 0.2s;
  backdrop-filter: blur(4px);
  isolation: isolate;
}
.vc-btn::before {
  content: "";
  position: absolute;
  inset: -1.5px;
  border-radius: 7.5px;
  background: linear-gradient(
    135deg,
    #e8d5ff,
    #c8e8ff,
    #c8f5e8,
    #fff5c8,
    #ffd5e8,
    #e8d5ff
  );
  background-size: 300% 300%;
  animation: holoFlow 5s ease infinite;
  z-index: -1;
}
.vc-btn:hover {
  background: rgba(26, 23, 20, 0.07);
}
.vc-btn.f {
  background: var(--ink);
  background-clip: padding-box;
  color: rgba(248, 246, 242, 0.9);
}
.vc-btn.f:hover {
  background: #333;
}
/* v-img 자체에 안전장치 — 세로가 긴 화면에서도 과도하게 안 넓어지게 */
.v-img {
  max-width: 55vw;
}

/* 반응형 */
@media (max-width: 1200px) {
  .room-a-hdr {
    padding: 2.5rem 1.8rem 1.8rem;
    gap: 1.5rem;
  }
  .v-item,
  .v-item:nth-of-type(2) {
    flex-direction: column; /* 세로 스택으로 통일 */
    align-items: center;
    gap: 2rem;
    margin: 6rem 0;
    min-height: 0;
  }
  .v-stack {
    /* Room B(.h-track)처럼 모바일에서 화면 양옆 여백이 생기도록 함.
       room-a-hdr과 동일한 값(1.8rem)으로 통일 */
    padding: 0 1.8rem;
  }
  .v-artwork-wrap {
    /* align-items:center인 flex 컬럼에서는 자식이 자동으로 늘어나지 않아서
       .v-img의 width:100%가 기준으로 삼을 너비가 없어짐 → 이미지가
       원본 비율대로 찌그러져 작게 나오는 원인. 여기서 명시적으로 폭을 줘서
       .v-img가 항상 16:9로 정상 크롭되게 함(Room B .h-img와 동일) */
    width: 100%;
    max-width: 600px;
  }
  .v-img {
    height: auto;
    width: 100%;
    max-width: 600px;
  }
  .v-cap {
    flex: none;
    width: 100%;
    max-width: 600px;
    height: auto;
    padding: 1.8rem;
  }
}

@media (max-width: 768px) {
  .room-a-hdr {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .v-item {
    margin: 4rem 0;
  }
  .vc-title {
    font-size: 1.4rem;
  }
  .vc-tools,
  .vc-project,
  .vc-type,
  .vc-page {
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .room-a-hdr {
    padding: 2rem 1.2rem 1.2rem;
  }
  .v-stack {
    padding: 0 1.2rem;
  }
  .v-cap {
    padding: 1.4rem;
  }
  .vc-title {
    font-size: 1.2rem;
  }
}