/* ============================================================
   realty-bee - section.css
   메인 비주얼 / 단지개요 / 입지환경 / 평형안내 / 갤러리 / 상담폼
   ============================================================ */

/* ──────────────────────────────────────────
   1. 메인 비주얼 슬라이더
   ────────────────────────────────────────── */
.rb-visual {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  background: var(--rb-primary-dark);
}

.rb-visual__slides { width: 100%; height: 100%; }

.rb-visual__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
  pointer-events: none;
}
.rb-visual__slide.is-active {
  opacity: 1;
  pointer-events: auto;
}

/* 배경 이미지 */
.rb-visual__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 6s ease;
}
.rb-visual__slide.is-active .rb-visual__bg {
  transform: scale(1);
}

/* 오버레이 */
.rb-visual__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.15) 0%,
    rgba(0,0,0,0.45) 60%,
    rgba(0,0,0,0.65) 100%
  );
}

/* 텍스트 레이어 */
.rb-visual__layer {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 20px;
}

.rb-visual__content {
  transform: translateY(20px);
  opacity: 0;
  transition: transform 0.9s ease 0.3s, opacity 0.9s ease 0.3s;
}
.rb-visual__slide.is-active .rb-visual__content {
  transform: translateY(0);
  opacity: 1;
}

.rb-visual__sub {
  display: inline-block;
  font-family: var(--rb-font-en);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--rb-accent);
  margin-bottom: 20px;
  border: 1px solid var(--rb-accent);
  padding: 6px 16px;
  border-radius: 2px;
}

.rb-visual__title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.rb-visual__desc {
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  line-height: 1.7;
}

.rb-visual__btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* 네비게이션 화살표 */
.rb-visual__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 50%;
  transition: all var(--rb-transition);
  z-index: 10;
  backdrop-filter: blur(4px);
}
.rb-visual__nav:hover { background: var(--rb-accent); border-color: var(--rb-accent); }
.rb-visual__nav--prev { left: 24px; }
.rb-visual__nav--next { right: 24px; }

/* 도트 페이지네이션 */
.rb-visual__dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}
.rb-visual__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: all var(--rb-transition);
  border: none;
  padding: 0;
}
.rb-visual__dot.is-active {
  background: var(--rb-accent);
  width: 24px;
  border-radius: 4px;
}

/* 스크롤 유도 */
.rb-visual__scroll {
  position: absolute;
  bottom: 36px;
  right: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.5);
  font-family: var(--rb-font-en);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  z-index: 10;
}
.rb-visual__scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: rb-scrollline 1.5s ease infinite;
}
@keyframes rb-scrollline {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ──────────────────────────────────────────
   2. 단지 개요 (Summary)
   ────────────────────────────────────────── */
.rb-summary { background: var(--rb-bg); }

.rb-summary__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rb-border);
  border: 1px solid var(--rb-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--rb-shadow-md);
}

.rb-summary__card {
  background: #fff;
  padding: 40px 24px;
  text-align: center;
  transition: background var(--rb-transition);
}
.rb-summary__card:hover { background: var(--rb-light, #f0f4fb); }

.rb-summary__icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
  display: block;
}

.rb-summary__label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--rb-text-light);
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}

.rb-summary__value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--rb-primary-dark);
  line-height: 1.3;
  display: block;
}

.rb-summary__value .rb-counter {
  font-family: var(--rb-font-en);
  font-size: 1.8rem;
  color: var(--rb-primary);
}

/* ──────────────────────────────────────────
   3. 입지환경 (Location)
   ────────────────────────────────────────── */
.rb-location { background: var(--rb-bg-alt); }

.rb-location__tabs-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
}

.rb-location__tabs {
  display: inline-flex;
  gap: 0;
  border: 1px solid var(--rb-border);
  border-radius: 50px;
  overflow: hidden;
  background: #fff;
}

.rb-location__tab {
  padding: 10px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--rb-text-sub);
  cursor: pointer;
  transition: all var(--rb-transition);
  white-space: nowrap;
  border: none;
  background: none;
  border-radius: 50px;
}
.rb-location__tab.is-active,
.rb-location__tab:hover {
  background: var(--rb-primary);
  color: #fff;
}

.rb-location__img-wrap {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--rb-shadow-lg);
  background: var(--rb-bg-alt);
  cursor: zoom-in;
}

.rb-location__img-wrap img {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity 0.4s ease;
}

.rb-location__img-wrap .rb-location__zoom {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: rgba(0,0,0,0.5);
  color: #fff;
  padding: 8px 14px;
  border-radius: 4px;
  font-size: 0.8rem;
  backdrop-filter: blur(4px);
}

/* 라이트박스 */
.rb-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: var(--rb-z-modal);
  align-items: center;
  justify-content: center;
}
.rb-lightbox.is-open { display: flex; }
.rb-lightbox__img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 4px;
}
.rb-lightbox__close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.15);
  color: #fff;
  font-size: 1.3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
}
.rb-lightbox__close:hover { background: var(--rb-accent); }

/* ──────────────────────────────────────────
   4. 평형/타입 안내 (Unit)
   ────────────────────────────────────────── */
.rb-unit { background: #fff; }

.rb-unit__tabs-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 48px;
}

.rb-unit__tabs {
  display: inline-flex;
  border-bottom: 2px solid var(--rb-border);
}

.rb-unit__tab {
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--rb-text-sub);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: all var(--rb-transition);
  white-space: nowrap;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}
.rb-unit__tab.is-active,
.rb-unit__tab:hover {
  color: var(--rb-primary);
  border-bottom-color: var(--rb-primary);
}

.rb-unit__content {
  display: none;
}
.rb-unit__content.is-active {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

/* 평면도 이미지 */
.rb-unit__img-wrap {
  background: var(--rb-bg-alt);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--rb-border);
  cursor: zoom-in;
}
.rb-unit__img-wrap img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
}
.rb-unit__img-wrap:hover img { transform: scale(1.03); }

/* 평형 정보 */
.rb-unit__info-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--rb-primary-dark);
  margin-bottom: 8px;
}
.rb-unit__info-subtitle {
  font-size: 0.9rem;
  color: var(--rb-text-sub);
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--rb-border);
}

.rb-unit__specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rb-border);
  border: 1px solid var(--rb-border);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 32px;
}
.rb-unit__spec {
  background: #fff;
  padding: 18px 20px;
}
.rb-unit__spec dt {
  font-size: 0.78rem;
  color: var(--rb-text-light);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  text-transform: uppercase;
}
.rb-unit__spec dd {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--rb-primary-dark);
}

/* ──────────────────────────────────────────
   5. 갤러리 (Gallery)
   ────────────────────────────────────────── */
.rb-gallery { background: var(--rb-bg-alt); }

.rb-gallery__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.rb-gallery__item {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  background: var(--rb-border);
  cursor: pointer;
  aspect-ratio: 4/3;
}
.rb-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.rb-gallery__item:hover img { transform: scale(1.08); }
.rb-gallery__item__overlay {
  position: absolute;
  inset: 0;
  background: rgba(26,58,107,0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease;
}
.rb-gallery__item:hover .rb-gallery__item__overlay {
  background: rgba(26,58,107,0.4);
}
.rb-gallery__item__overlay span {
  color: #fff;
  font-size: 1.5rem;
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.3s ease;
}
.rb-gallery__item:hover .rb-gallery__item__overlay span {
  opacity: 1;
  transform: scale(1);
}

/* ──────────────────────────────────────────
   6. 상담신청 폼 (Contact)
   ────────────────────────────────────────── */

/* 공통 폼 */
.rb-contact__form {
  max-width: 640px;
  margin: 0 auto;
}

.rb-contact__field {
  margin-bottom: 20px;
}
.rb-contact__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--rb-text-sub);
  margin-bottom: 8px;
}
.rb-contact__label .required {
  color: var(--rb-accent);
  margin-left: 3px;
}
.rb-contact__input,
.rb-contact__select,
.rb-contact__textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--rb-border);
  border-radius: 4px;
  font-size: 0.95rem;
  color: var(--rb-text);
  background: #fff;
  transition: border-color var(--rb-transition), box-shadow var(--rb-transition);
  -webkit-appearance: none;
  appearance: none;
}
.rb-contact__input:focus,
.rb-contact__select:focus,
.rb-contact__textarea:focus {
  outline: none;
  border-color: var(--rb-primary);
  box-shadow: 0 0 0 3px rgba(26,58,107,0.1);
}
.rb-contact__textarea { min-height: 100px; resize: vertical; }

.rb-contact__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* 개인정보 동의 */
.rb-contact__agree {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.85rem;
  color: var(--rb-text-sub);
  line-height: 1.6;
}
.rb-contact__agree input[type="checkbox"] {
  margin-top: 2px;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--rb-primary);
}
.rb-contact__agree a {
  color: var(--rb-primary);
  text-decoration: underline;
}

/* Style: box (기본) */
.rb-contact--box { background: var(--rb-bg-alt); }
.rb-contact--box .rb-contact__wrap {
  background: #fff;
  border-radius: 12px;
  padding: 48px;
  box-shadow: var(--rb-shadow-md);
}

/* Style: fullbg (배경 일체형) */
.rb-contact--fullbg {
  background: var(--rb-primary);
}
.rb-contact--fullbg .rb-section-title .en { color: var(--rb-accent); }
.rb-contact--fullbg .rb-section-title .ko { color: #fff; }
.rb-contact--fullbg .rb-section-title::after { background: rgba(255,255,255,0.3); }
.rb-contact--fullbg .rb-contact__input,
.rb-contact--fullbg .rb-contact__select {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
  color: #fff;
}
.rb-contact--fullbg .rb-contact__input::placeholder { color: rgba(255,255,255,0.5); }
.rb-contact--fullbg .rb-contact__label { color: rgba(255,255,255,0.8); }
.rb-contact--fullbg .rb-contact__agree { color: rgba(255,255,255,0.7); }

/* Style: slim (슬림형) */
.rb-contact--slim { background: #fff; }
.rb-contact--slim .rb-contact__form { max-width: 900px; }
.rb-contact--slim .rb-contact__row--slim {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: 12px;
  align-items: end;
}

/* ──────────────────────────────────────────
   반응형 (섹션)
   ────────────────────────────────────────── */
@media (max-width: 1024px) {
  .rb-summary__grid { grid-template-columns: repeat(2, 1fr); }
  .rb-gallery__grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  /* 비주얼 */
  .rb-visual { height: 100svh; min-height: 500px; }
  .rb-visual__title { font-size: 1.8rem; }
  .rb-visual__nav { display: none; }
  .rb-visual__scroll { display: none; }

  /* 단지개요 */
  .rb-summary__grid { grid-template-columns: repeat(2, 1fr); }
  .rb-summary__card { padding: 28px 16px; }
  .rb-summary__value { font-size: 1.1rem; }

  /* 입지환경 */
  .rb-location__tabs { flex-wrap: wrap; border-radius: 8px; }
  .rb-location__tab { padding: 9px 16px; font-size: 0.85rem; }

  /* 평형안내 */
  .rb-unit__content.is-active { grid-template-columns: 1fr; gap: 32px; }
  .rb-unit__tab { padding: 12px 20px; font-size: 0.875rem; }

  /* 갤러리 */
  .rb-gallery__grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }

  /* 상담폼 */
  .rb-contact--box .rb-contact__wrap { padding: 28px 20px; }
  .rb-contact__row { grid-template-columns: 1fr; }
  .rb-contact--slim .rb-contact__row--slim {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
}

@media (max-width: 479px) {
  .rb-summary__grid { grid-template-columns: repeat(2, 1fr); }
  .rb-gallery__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ──────────────────────────────────────────
   갤러리 탭 (section.css 누락분 추가)
   ────────────────────────────────────────── */
.rb-gallery__tabs-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 32px;
}
.rb-gallery__tabs {
  display: inline-flex;
  border-bottom: 2px solid var(--rb-border);
  gap: 0;
}
.rb-gallery__tab {
  padding: 12px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--rb-text-sub);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: all var(--rb-transition);
  white-space: nowrap;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}
.rb-gallery__tab.is-active,
.rb-gallery__tab:hover {
  color: var(--rb-primary);
  border-bottom-color: var(--rb-primary);
}