:root {
  --fg: #1b1b1b;
  --muted: #6a6a6a;
  --accent: #1b6b3c;
  --bad: #b3261e;
  --bg: #fafaf7;
  --line: #e3e3dc;
  --bar-bg: #e7ebe6;
  --bar-fill: #1b6b3c;
}

* { box-sizing: border-box; }

body {
  font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--fg);
  background: var(--bg);
  margin: 0;
  padding: 2rem clamp(1rem, 4vw, 3rem);
  max-width: 1000px;
}

header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
}

.tag {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

form#query {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)) auto;
  gap: 0.75rem;
  align-items: end;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
}

form label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
  color: var(--muted);
}

form input {
  font: inherit;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  color: var(--fg);
}

form button {
  font: inherit;
  padding: 0.55rem 1.2rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

form button:disabled {
  opacity: 0.6;
  cursor: progress;
}

#status {
  margin: 1rem 0 0;
  min-height: 1.2em;
  color: var(--muted);
}

#status.error { color: var(--bad); }

.resolved {
  margin: 0.5rem 0 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.resolved code {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0 0.3rem;
}

#hero {
  margin: 1rem 0 1.5rem;
  padding: 1.5rem 1.5rem 1.25rem;
  background: linear-gradient(135deg, #1b6b3c 0%, #2a9d57 100%);
  color: #fff;
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(27, 107, 60, 0.18);
}

#hero[hidden] { display: none; }

.hero-headline {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.92);
}

.hero-headline strong {
  color: #fff;
  font-weight: 700;
}

.hero-stat {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
  flex-wrap: wrap;
}

.hero-pct {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.hero-fraction {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
}

.hero-bar {
  height: 10px;
  background: rgba(255, 255, 255, 0.22);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.hero-bar-fill {
  height: 100%;
  background: #fff;
  border-radius: 6px;
  transition: width 0.4s ease-out;
}

.hero-share {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.hero-share-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
  margin-right: 0.25rem;
}

.share-btn {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: background 0.15s ease;
}

.share-btn:hover {
  background: rgba(255, 255, 255, 0.24);
}

.share-btn.copy.copied {
  background: #fff;
  color: var(--accent);
  border-color: #fff;
}

main#tree ul {
  list-style: none;
  padding-left: 1.2rem;
  margin: 0;
  border-left: 1px dashed var(--line);
}

main#tree > ul {
  padding-left: 0;
  border-left: none;
}

details.node {
  margin: 0.15rem 0;
}

details.node > summary {
  cursor: pointer;
  padding: 0.35rem 0.5rem;
  border-radius: 4px;
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
}

details.node > summary:hover {
  background: #fff;
}

.rank {
  display: inline-block;
  min-width: 4.5rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.name { font-weight: 600; }
.common { color: var(--muted); font-weight: 400; }
.coverage { margin-left: auto; font-variant-numeric: tabular-nums; font-size: 0.9rem; }
.coverage.loading { color: var(--muted); font-style: italic; }
.coverage.error { color: var(--bad); }

.bar {
  display: inline-block;
  width: 90px;
  height: 6px;
  background: var(--bar-bg);
  border-radius: 3px;
  overflow: hidden;
  vertical-align: middle;
  margin-right: 0.4rem;
}
.bar > span {
  display: block;
  height: 100%;
  background: var(--bar-fill);
}

.crumb {
  display: inline-flex;
  gap: 0.4rem;
  align-items: baseline;
  flex-wrap: wrap;
}

.crumb-sep {
  color: var(--muted);
  margin: 0 0.15rem;
  opacity: 0.6;
}

details.node.collapsed-chain > summary .crumb:not(:last-of-type) .name {
  color: var(--muted);
  font-weight: 500;
}

.suggestion-box {
  margin: 0.3rem 0 0.6rem 1.2rem;
  padding: 0.5rem 0.7rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 0.85rem;
}

.suggestion-heading {
  color: var(--muted);
  margin-bottom: 0.4rem;
  font-size: 0.8rem;
}

.species-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.15rem 0.8rem;
}

.species {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.15rem 0.3rem;
  border-radius: 3px;
}

.species .mark {
  display: inline-block;
  width: 1rem;
  text-align: center;
  font-weight: 700;
}

.species .sp-name {
  text-decoration: none;
  color: inherit;
}
.species .sp-name:hover { text-decoration: underline; }

.species .sp-count {
  margin-left: auto;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-size: 0.8rem;
  white-space: nowrap;
}

.species.seen {
  color: var(--muted);
}
.species.seen .mark { color: var(--accent); }
.species.seen .sp-name { font-style: normal; }

.species.unseen {
  background: #fff5d6;
  color: #1b1b1b;
}
.species.unseen .mark { color: #b08900; }
.species.unseen .sp-name {
  font-weight: 600;
  color: var(--accent);
}

.no-suggestion { font-style: italic; color: var(--muted); }

.ac-wrap {
  position: relative;
  display: block;
}

.ac-wrap > input {
  width: 100%;
}

.ac-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 10;
  background: #fff;
  border: 1px solid var(--line);
  border-top: none;
  border-radius: 0 0 4px 4px;
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 240px;
  overflow-y: auto;
  font-size: 0.9rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

.ac-item {
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
}

.ac-item.active {
  background: var(--bar-bg);
}

.ac-item .ac-name {
  color: var(--fg);
}

.ac-item .ac-hint {
  color: var(--muted);
  font-size: 0.75rem;
  margin-left: auto;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}