:root {
  --bg: #040806;
  --panel: #08110c;
  --line: #1f7a3f;
  --line-soft: #184f2e;
  --text: #d3eadb;
  --muted: #8eac98;
  --accent: #4dc678;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.site-header {
  border-bottom: 1px solid var(--line);
  text-align: center;
  padding: 1.2rem 1rem;
}

.site-header h1 {
  margin: 0;
  letter-spacing: 0.08em;
}

.subtitle {
  margin-top: 0.3rem;
  color: var(--muted);
  font-size: 0.9rem;
}


.list-heading {
  margin: 0 0 6px;
  font-size: 0.9rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.species-count {
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 400;
}

.layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) 1fr;
  gap: 16px;
  padding: 16px;
  height: calc(100vh - 170px);
  min-height: calc(100vh - 170px);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 0;
}

.sidebar {
  padding: 14px;
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
}

.sidebar-top {
  flex: 0 0 auto;
}

.sidebar-list-section {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

#listTitle {
  margin: 0 0 6px;
}


.list-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 6px;
}

.jump-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 2px;
  max-width: 145px;
}

.jump-btn {
  width: 14px;
  height: 14px;
  padding: 0;
  font-size: 9px;
  line-height: 1;
  color: #8fd8ac;
  background: transparent;
  border: 1px solid #1f7a3f;
  cursor: pointer;
}

.toggle-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.second-row {
  margin-bottom: 14px;
}

.toggle-button,
.home-button {
  background: #0b1a12;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 0.45rem 0.7rem;
  cursor: pointer;
}

.toggle-button.active {
  background: #12311f;
  color: var(--accent);
  border-color: #2ea156;
}

.species-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  padding-right: 6px;
  overscroll-behavior: contain;
}

.list-item,
.genus-heading {
  border: none;
  background: none;
  color: var(--text);
  text-align: left;
  padding: 2px 0;
  cursor: pointer;
  line-height: 1.35;
  border-radius: 0;
}

.genus-heading {
  color: #9bd5b1;
  margin-top: 10px;
  margin-bottom: 3px;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: default;
}

.primary-name {
  display: block;
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
}

.list-item small {
  display: block;
  color: var(--muted);
}

.list-item.selected {
  color: var(--accent);
}

.content {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
  overflow: auto;
}

.status {
  padding: 0.8rem;
  color: var(--muted);
}

.detail {
  padding: 1rem;
}

.hidden {
  display: none;
}

.sci-name {
  margin: 0;
  color: #c8f2d9;
  font-style: italic;
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: 2rem;
  line-height: 1.2;
}

.ja-name {
  margin-top: 6px;
  color: #93c8a7;
}

.scientific-text {
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-style: italic;
}

.photo-grid {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.photo-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: #07100b;
}

.featured-card {
  width: min(680px, 100%);
  margin: 0 auto;
}

.featured-photo {
  display: block;
  width: 100%;
  height: 360px;
  object-fit: cover;
  object-position: center;
}

.photo-thumbs {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
  width: min(680px, 100%);
  margin: 0 auto;
}

.thumb-card {
  min-width: 0;
}

.thumb-photo {
  display: block;
  width: 100%;
  height: 72px;
  object-fit: cover;
  object-position: center;
}


.thumb-clickable {
  cursor: pointer;
}

.thumb-card.is-active {
  box-shadow: inset 0 0 0 1px #6ed78a;
}

.active-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  font-size: 0.66rem;
  padding: 1px 6px;
  background: rgba(14, 45, 26, 0.9);
  border: 1px solid #2ea156;
  color: #bff6cf;
}

.photo-source {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 2px 6px;
  font-size: 0.7rem;
  background: rgba(0, 0, 0, 0.6);
  color: #bceccd;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.obs-link-wrap {
  margin-top: 8px;
  display: flex;
  justify-content: center;
}

.obs-link-button {
  display: inline-block;
  padding: 0.28rem 0.5rem;
  font-size: 0.76rem;
  color: var(--accent);
  border: 1px solid var(--line);
  text-decoration: none;
  background: #0b1a12;
}

.seasonality-section {
  margin-top: 8px;
}

.seasonality-wrap {
  border: 1px solid var(--line-soft);
  padding: 8px;
  display: flex;
  justify-content: center;
}

#seasonalityChart {
  width: min(100%, 640px);
  height: auto;
  display: block;
}

.meta-grid {
  margin: 14px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 8px;
}

.meta-grid div {
  border: 1px solid var(--line-soft);
  padding: 8px;
}


.distribution-summary {
  margin: 4px 0 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

.map-wrap {
  border: 1px solid var(--line-soft);
  padding: 8px;
}

#hokkaidoMap {
  width: 100%;
  height: auto;
}

.footer {
  display: flex;
  justify-content: center;
  padding: 6px 0 20px;
}

.home-button {
  min-width: 160px;
  color: var(--accent);
}

@media (max-width: 1000px) {
  .layout {
    grid-template-columns: 1fr;
    height: auto;
    min-height: calc(100vh - 170px);
  }

  .sidebar {
    min-height: auto;
  }

  .species-list {
    max-height: 55vh;
  }

  .photo-thumbs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .featured-photo {
    height: 320px;
  }
}


.species-list,
.content {
  scrollbar-width: thin;
  scrollbar-color: #39b268 #0b1a12;
}

.species-list::-webkit-scrollbar,
.content::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

.species-list::-webkit-scrollbar-track,
.content::-webkit-scrollbar-track {
  background: #0b1a12;
  border: 1px solid #1f7a3f;
}

.species-list::-webkit-scrollbar-thumb,
.content::-webkit-scrollbar-thumb {
  background: #1f7a3f;
  border: 2px solid #0b1a12;
}

.species-list::-webkit-scrollbar-button,
.content::-webkit-scrollbar-button {
  display: block;
  height: 12px;
  background: #0f2a1c;
  border: 1px solid #1f7a3f;
}