*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f5f5f0;
  --card-bg: #fff;
  --text: #1a1a1a;
  --text-secondary: #555;
  --text-tertiary: #999;
  --accent: #2d5a27;
  --price: #c0392b;
  --border: #e8e8e3;
  --tag-bg: #eef2ed;
  --tag-text: #3a6b34;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-hover: 0 8px 25px rgba(0,0,0,0.1);
}

body {
  font-family: "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Header ── */
.header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: baseline;
  gap: 2px;
  text-decoration: none;
  line-height: 1;
}
.logo-insta {
  font-family: "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  font-weight: 900;
  font-size: 22px;
  background: linear-gradient(135deg, #833ab4, #fd1d1d, #f77737);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.04em;
}
.logo-bukken {
  font-family: "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  font-weight: 900;
  font-size: 20px;
  color: var(--text);
  letter-spacing: 0.08em;
}
.back-link {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  display: none;
}
.back-link:hover { color: var(--accent); }
.back-link.visible { display: block; }

/* ── Search ── */
.search-section {
  max-width: 1200px;
  margin: 24px auto 0;
  padding: 0 24px;
}
.search-form {
  display: flex;
  gap: 8px;
}
.search-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  background: #fff;
  outline: none;
  transition: border-color 0.2s;
}
.search-input:focus { border-color: var(--accent); }
.search-btn {
  padding: 12px 24px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}
.search-btn:hover { opacity: 0.9; }

/* ── Filters ── */
.filters {
  max-width: 1200px;
  margin: 12px auto 0;
  padding: 0 24px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.filter-tag {
  padding: 6px 14px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}
.filter-tag:hover,
.filter-tag.active {
  background: var(--tag-bg);
  border-color: var(--accent);
  color: var(--tag-text);
}

/* ── Accordion Filters ── */
.filter-accordion {
  max-width: 1200px;
  margin: 8px auto 0;
  padding: 0 24px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.filter-group {
  position: relative;
}
.filter-group-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}
.filter-group-btn:hover,
.filter-group-btn.has-selection {
  background: var(--tag-bg);
  border-color: var(--accent);
  color: var(--tag-text);
}
.filter-group-btn .chevron {
  font-size: 10px;
  transition: transform 0.2s;
}
.filter-group-btn.open .chevron { transform: rotate(90deg); }
.filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  padding: 0 5px;
}
.filter-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 100;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  padding: 8px;
  min-width: 180px;
}
.filter-dropdown.open { display: flex; flex-wrap: wrap; gap: 6px; }
.filter-check {
  padding: 5px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.filter-check:hover { border-color: var(--accent); }
.filter-check.active {
  background: var(--tag-bg);
  border-color: var(--accent);
  color: var(--tag-text);
  font-weight: 600;
}

/* ── Results Meta ── */
.results-meta {
  max-width: 1200px;
  margin: 16px auto 0;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.results-count {
  font-size: 14px;
  color: var(--text-secondary);
}
.results-count strong { color: var(--text); }

/* ── Grid ── */
.grid {
  max-width: 1200px;
  margin: 16px auto 40px;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* ── Card ── */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow 0.25s, transform 0.25s;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}
.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.card-image {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #e0e0d8;
}
.card-carousel {
  display: flex;
  width: 100%;
  height: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
}
.card-carousel::-webkit-scrollbar { display: none; }
.card-carousel img {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  -webkit-user-drag: none;
  user-select: none;
}
.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  color: #1a1a1a;
  font-size: 20px;
  font-weight: 700;
  line-height: 32px;
  text-align: center;
  cursor: pointer;
  z-index: 2;
  box-shadow: 0 1px 4px rgba(0,0,0,0.15);
  transition: opacity 0.15s, transform 0.1s;
  user-select: none;
}
.carousel-nav:hover { transform: translateY(-50%) scale(1.08); }
.carousel-nav:active { transform: translateY(-50%) scale(0.95); }
.carousel-nav.prev { left: 8px; }
.carousel-nav.next { right: 8px; }
.carousel-nav.hidden { opacity: 0; pointer-events: none; }
.card-dots {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 4px;
  pointer-events: none;
}
.card-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  box-shadow: 0 0 2px rgba(0,0,0,0.4);
  transition: background 0.15s;
}
.card-dot.active { background: #fff; }
.image-count {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  backdrop-filter: blur(4px);
}
.badges {
  position: absolute;
  top: 8px;
  left: 8px;
  display: flex;
  gap: 4px;
}
.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  backdrop-filter: blur(4px);
}
.badge-new { background: rgba(192,57,43,0.9); color: #fff; }
.badge-source { background: rgba(0,0,0,0.55); color: #fff; }
.card-body { padding: 14px 16px 16px; }
.card-price {
  font-size: 20px;
  font-weight: 700;
  color: var(--price);
  letter-spacing: -0.5px;
  margin-top: 6px;
}
.card-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-specs {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}
.card-location {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-tertiary);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-caption {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  border-top: 1px solid var(--border);
  padding-top: 8px;
}

/* ── States ── */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-tertiary);
}
.empty-state h2 {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.loading {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-tertiary);
  font-size: 14px;
}
.error-msg {
  text-align: center;
  padding: 40px 24px;
  color: var(--price);
  font-size: 14px;
}

/* ── Gallery ── */
.gallery {
  max-width: 960px;
  margin: 0 auto;
  position: relative;
}
.gallery-main {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
  background: #222;
}
.gallery-main .slide {
  width: 100%;
  height: 100%;
  display: none;
  position: absolute;
  top: 0;
  left: 0;
}
.gallery-main .slide.active { display: block; }
.gallery-main .slide img,
.gallery-main .slide video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #222;
}
.gallery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  transition: transform 0.15s;
  z-index: 10;
}
.gallery-nav:hover { transform: translateY(-50%) scale(1.1); }
.gallery-nav.prev { left: 12px; }
.gallery-nav.next { right: 12px; }
.gallery-counter {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 12px;
  backdrop-filter: blur(4px);
}
.gallery-thumbs {
  max-width: 960px;
  margin: 8px auto 0;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding: 0 0 8px;
  scrollbar-width: thin;
}
.gallery-thumbs .thumb {
  width: 72px;
  height: 54px;
  border-radius: 4px;
  flex-shrink: 0;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.2s;
  border: 2px solid transparent;
  overflow: hidden;
}
.gallery-thumbs .thumb.active { opacity: 1; border-color: var(--accent); }
.gallery-thumbs .thumb:hover { opacity: 0.85; }
.gallery-thumbs .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Detail Content ── */
.detail-content {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 24px 60px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 24px;
}
.specs-bar {
  display: flex;
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.specs-bar .spec-item {
  flex: 1;
  text-align: center;
  padding: 16px 12px;
  border-right: 1px solid var(--border);
}
.specs-bar .spec-item:last-child { border-right: none; }
.spec-item .spec-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}
.spec-item .spec-value.price-val { color: var(--price); }
.spec-item .spec-label {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 2px;
}
.section {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.section-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.description p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.9;
  white-space: pre-wrap;
  word-break: break-word;
}
.detail-table {
  width: 100%;
  border-collapse: collapse;
}
.detail-table tr { border-bottom: 1px solid var(--border); }
.detail-table tr:last-child { border-bottom: none; }
.detail-table th {
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  color: var(--text-secondary);
  padding: 10px 12px 10px 0;
  width: 120px;
  vertical-align: top;
}
.detail-table td { font-size: 14px; padding: 10px 0; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.tag {
  font-size: 12px;
  padding: 4px 10px;
  background: var(--tag-bg);
  color: var(--tag-text);
  border-radius: 4px;
}

/* ── Sidebar ── */
.sidebar-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.sidebar-card + .sidebar-card { margin-top: 16px; }
.sidebar-price {
  font-size: 28px;
  font-weight: 700;
  color: var(--price);
}
.sidebar-actions { margin-top: 16px; }
.btn-outline {
  display: block;
  width: 100%;
  padding: 12px;
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: background 0.2s;
}
.btn-outline:hover { background: var(--tag-bg); }
.source-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: #fafaf8;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  transition: background 0.2s;
}
.source-link:hover { background: var(--tag-bg); }
.source-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}
.source-info .source-name { font-size: 14px; font-weight: 600; }
.source-info .source-date { font-size: 12px; color: var(--text-tertiary); }
.sidebar-label {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-secondary);
}
.similar-item {
  display: flex;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  padding: 6px 0;
}
.similar-thumb {
  width: 64px;
  height: 48px;
  border-radius: 4px;
  flex-shrink: 0;
  overflow: hidden;
  background: #e0e0d8;
}
.similar-thumb img { width: 100%; height: 100%; object-fit: cover; }
.similar-title { font-size: 13px; font-weight: 600; line-height: 1.3; }
.similar-meta { font-size: 12px; color: var(--text-tertiary); }

/* ── Rent Slider ── */
.rent-slider-section {
  max-width: 1200px;
  margin: 10px auto 0;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.rent-slider-label {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
}
.rent-slider-value {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  min-width: 80px;
}
.rent-hidden { display: none !important; }
.rent-slider {
  width: 240px;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}
.rent-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
.rent-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

/* ── Ads ── */
.ad-slot {
  max-width: 1200px;
  margin: 12px auto;
  padding: 0 24px;
  text-align: center;
  min-height: 1px;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}
@media (max-width: 800px) {
  .detail-content { grid-template-columns: 1fr; padding: 16px 16px 40px; }
  .sidebar { order: -1; }
  .specs-bar { flex-wrap: wrap; }
  .specs-bar .spec-item { flex: 1 1 50%; border-bottom: 1px solid var(--border); }
  .specs-bar .spec-item:nth-child(n+3) { border-bottom: none; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; padding: 0 16px; }
  .search-section, .filters, .results-meta { padding: 0 16px; }
  .header { padding: 12px 16px; }
}