:root {
  --bg: #f4f7f4;
  --surface: #ffffff;
  --text: #1a2e1a;
  --muted: #4a5f4a;
  --accent: #2d6a4f;
  --accent-hover: #1b4332;
  --border: #c5d4c5;
  --danger: #9b2226;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--accent); }
a:hover { color: var(--accent-hover); }

.site-header {
  background: linear-gradient(135deg, #1b4332 0%, #2d6a4f 55%, #40916c 100%);
  color: #f4f7f4;
  padding: 1.6rem 1.25rem 1.8rem;
}

.site-header h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 650;
}

.site-header .tagline { margin: 0; opacity: 0.92; font-size: 0.95rem; }
.site-header a { color: #d8f3dc; }

main {
  width: 100%;
  margin: 0;
  padding: 0;
}

.view-shell {
  background: var(--surface);
  border: 1px solid var(--border);
  /* 100vh includes area covered by mobile browser chrome; svh/dvh match the visible viewport better */
  height: 100vh;
  height: 100svh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
}

.view-tabs {
  display: flex;
  flex-wrap: wrap;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}

.tab {
  border: 0;
  border-right: 1px solid var(--border);
  background: #eef4ee;
  color: var(--muted);
  font-weight: 650;
  font-size: 0.94rem;
  padding: 0.7rem 1rem;
  cursor: pointer;
}

.tab[aria-selected="true"] {
  background: #fff;
  color: var(--accent);
}

.search-summary-bar {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0.65rem 0.5rem 0.85rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.search-summary-bar--map,
.search-summary-bar--detail {
  justify-content: flex-end;
}

.search-summary-text {
  margin: 0;
  flex: 1;
  min-width: 0;
}

.search-summary-text--spacer {
  flex: 1;
  min-height: 1em;
}

.btn-icon-refresh {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--muted);
  cursor: pointer;
}

.btn-icon-refresh:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-icon-refresh:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-icon-refresh__icon {
  display: block;
}

.view-panel.hidden,
.view-panel[hidden] { display: none !important; }

.view-panel {
  flex: 1 1 0;
  min-height: 0;
  overflow-y: auto;
}

.filters {
  padding: 1rem;
}

.filters h2 { margin: 0 0 0.9rem; font-size: 1.05rem; }

.filter-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 0.9rem;
}

.field,
.months-fieldset {
  position: relative;
  border: 1px solid var(--border);
  padding: 0.95rem 0.7rem 0.7rem;
}

.field label,
.months-fieldset legend {
  position: absolute;
  top: -0.58rem;
  left: 0.55rem;
  display: inline-block;
  padding: 0 0.28rem;
  background: var(--surface);
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1;
  margin: 0;
}

.field--checkbox-row .checkbox-row-label {
  position: static;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  margin: 0;
  padding: 0;
}

.field--checkbox-row input[type="checkbox"] {
  width: auto;
  accent-color: var(--accent);
}

.field input[type="search"],
.field input[type="text"],
.field select,
.field input[type="number"] {
  width: 100%;
  padding: 0.55rem 0.6rem;
  border: 1px solid var(--border);
  font-size: 0.95rem;
}

.place-input-wrap {
  display: flex;
  gap: 0.35rem;
  align-items: stretch;
}

.place-input-wrap input[type="search"] {
  flex: 1;
  min-width: 0;
}

.place-input-wrap .place-clear {
  flex-shrink: 0;
  padding: 0.35rem 0.65rem;
  font-size: 1.1rem;
  line-height: 1;
}

.field input.input-login {
  text-transform: lowercase;
}

.field input.input-login::placeholder {
  text-transform: none;
}

.field-checkbox {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-top: 1rem;
}

.field-checkbox label {
  position: absolute;
  top: -0.58rem;
  left: 0.55rem;
  display: inline-block;
  padding: 0 0.28rem;
  background: var(--surface);
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1;
  margin: 0;
}

.field-checkbox input[type="checkbox"] {
  width: auto;
  margin: 0.15rem 0 0 0.1rem;
  accent-color: var(--accent);
}

.field-hint,
.status-line {
  margin: 0.35rem 0 0;
  font-size: 0.79rem;
  color: var(--muted);
}

/* Only lay out when visible — `display: flex` would otherwise override `[hidden]`. */
.place-field .nearby-controls:not([hidden]) {
  margin-top: 0.65rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
}

.place-field .nearby-controls .radius-label {
  position: static;
  display: block;
  padding: 0;
  font-size: 0.85rem;
  font-weight: 650;
  line-height: 1.2;
}

.place-field .nearby-controls #radius-km {
  width: 6rem;
}

.months-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.3rem 0.5rem; }
.months-grid label { display: flex; gap: 0.35rem; align-items: center; font-size: 0.86rem; }

.card-meta-fieldset .field-hint {
  margin: 0 0 0.5rem;
}

.card-meta-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
}

.card-meta-label {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
  font-size: 0.86rem;
  font-weight: 500;
  cursor: pointer;
}

.card-meta-label input {
  accent-color: var(--accent);
}

.taxon-field { position: relative; }
.suggestions {
  list-style: none;
  margin: 0.2rem 0 0;
  padding: 0;
  max-height: 220px;
  overflow: auto;
  border: 1px solid var(--border);
  background: #fff;
  position: absolute;
  width: calc(100% - 1.4rem);
  z-index: 1000;
}
.suggestions li { padding: 0.5rem 0.6rem; border-bottom: 1px solid #ebf1eb; cursor: pointer; font-size: 0.9rem; }
.suggestions li:hover,
.suggestions li[aria-selected="true"] { background: #e8f5e9; }
.suggestions .sci { color: var(--muted); font-size: 0.8rem; }

.selected-pill {
  margin: 0.45rem 0 0;
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  background: #d8f3dc;
  padding: 0.25rem 0.5rem;
  font-size: 0.82rem;
}
.selected-pill button { border: 0; background: transparent; cursor: pointer; }

.hidden { display: none; }

.actions { display: flex; gap: 0.6rem; align-items: center; }
.btn {
  border: 1px solid var(--border);
  background: #fff;
  padding: 0.5rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }

.error-banner {
  margin: 0;
  padding: 0.6rem 0.8rem;
  color: var(--danger);
  background: #ffebee;
  border-bottom: 1px solid #ffcdd2;
  font-size: 0.9rem;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 0;
}

.card {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 0;
  content-visibility: auto;
  contain-intrinsic-size: 360px 360px;
}

.card a.card-link {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: block;
  width: 100%;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.card-save-photo {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  cursor: pointer;
  pointer-events: auto;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}

.card-save-photo:hover {
  background: rgba(27, 67, 50, 0.92);
  border-color: rgba(200, 245, 220, 0.6);
  color: #e8f5e9;
}

.card-save-photo svg {
  display: block;
}

.card a:not(.card-link) {
  display: block;
  width: 100%;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card .no-photo {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #dce8dc;
  color: var(--muted);
  font-size: 0.8rem;
}

.card-bottom {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 0.45rem 0.5rem 0.5rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.78));
  pointer-events: none;
}

.card-meta-line {
  margin: 0 0 0.2rem;
  color: rgba(255, 255, 255, 0.95);
  font-size: 0.74rem;
  font-weight: 500;
  line-height: 1.25;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.75);
}

.card-meta-line a.card-meta-tag-link {
  pointer-events: auto;
  color: #c8f5dc;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.card-meta-line a.card-meta-tag-link:hover {
  color: #fff;
}

.card-title-overlay {
  margin: 0;
  padding: 0;
  color: #fff;
  font-size: 0.86rem;
  font-weight: 650;
  line-height: 1.2;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7);
}

.scroll-sentinel {
  height: 1px;
}

.map-toolbar { padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--border); }
.map-container { height: 100%; position: relative; }

/* Observation grid heatmap tiles: widen the value ramp (layer opacity capped at 0.5 in JS). */
img.leaflet-tile.map-heat-tiles {
  filter: contrast(2.65) saturate(1.35) brightness(1.05);
}

.map-loading {
  position: absolute;
  bottom: 24px;
  right: 10px;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 6px;
  padding: 6px;
  line-height: 0;
  color: var(--accent);
  pointer-events: none;
}

.map-loading svg {
  animation: map-spin 0.8s linear infinite;
}

@keyframes map-spin {
  to { transform: rotate(360deg); }
}

.site-footer {
  text-align: center;
  padding: 1.2rem 1rem 1.6rem;
  font-size: 0.84rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  .results-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
}

/* Species detail page */

.detail-content {
  padding: 1rem;
  max-width: 720px;
}

.detail-hero {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.2rem;
}

.detail-hero img {
  width: 160px;
  height: 160px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
}

.detail-hero-info h2 {
  margin: 0 0 0.15rem;
  font-size: 1.2rem;
}

.detail-hero-info .sci-name {
  margin: 0 0 0.6rem;
  color: var(--muted);
  font-style: italic;
  font-size: 0.9rem;
}

.detail-links {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.detail-links a {
  font-size: 0.88rem;
}

.detail-section {
  margin-bottom: 1.5rem;
}

.detail-section h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  font-weight: 650;
}

.detail-hour-note {
  margin: 0 0 0.4rem;
  font-size: 0.78rem;
  color: var(--muted);
}

/* Species detail: no scrolling; month + hour charts share the same bar area height */
#panel-detail.detail-panel.view-panel {
  overflow: hidden;
  overscroll-behavior: none;
  display: flex;
  flex-direction: column;
  min-height: 0;
  max-height: 100%;
}

#panel-detail.detail-panel .search-summary-bar {
  flex-shrink: 0;
}

#panel-detail.detail-panel .detail-content {
  flex: 1 1 0;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  touch-action: none;
  overscroll-behavior: none;
  max-width: none;
  width: 100%;
  padding: 0.65rem 0.75rem;
}

/* Hero fills leftover viewport space; photo stretches to use it */
#panel-detail.detail-panel .detail-hero {
  flex: 1 1 0;
  min-height: 0;
  margin-bottom: 0.5rem;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 0.65rem;
}

#panel-detail.detail-panel .detail-hero > img {
  flex: 1 1 0;
  min-width: 0;
  width: 0;
  height: auto;
  align-self: stretch;
  min-height: 0;
  max-height: none;
  object-fit: cover;
  border-radius: 6px;
}

#panel-detail.detail-panel .detail-hero-info {
  flex: 0 0 auto;
  width: min(42%, 15rem);
  min-width: min(11rem, 38%);
  max-width: 100%;
}

#panel-detail.detail-panel .detail-charts {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

#panel-detail.detail-panel .detail-section,
#panel-detail.detail-panel .detail-section--hour {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  margin-bottom: 0;
}

#panel-detail.detail-panel .detail-section .bar-chart {
  flex-shrink: 0;
  height: 6.25rem;
  padding-top: 0.35rem;
  overflow: hidden;
  -webkit-overflow-scrolling: auto;
  scrollbar-gutter: auto;
}

#panel-detail.detail-panel .bar-chart--dense {
  min-width: 0;
}

#panel-detail.detail-panel .bar-chart--dense .bar-col {
  flex: 1 1 0;
  min-width: 0;
}

.bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 140px;
  padding-top: 1rem;
  overflow-x: auto;
  overflow-y: visible;
  -webkit-overflow-scrolling: touch;
  scrollbar-gutter: stable;
}

.bar-col {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: flex-end;
  min-width: 0;
}

.bar-chart--dense .bar-col {
  flex: 1 0 0.65rem;
  min-width: 0.65rem;
}

.bar-fill {
  width: 100%;
  background: var(--accent);
  border-radius: 2px 2px 0 0;
  min-height: 0;
  transition: height 0.2s ease;
}

.bar-label {
  flex-shrink: 0;
  font-size: 0.62rem;
  color: var(--muted);
  margin-top: 3px;
  white-space: nowrap;
  text-align: center;
  /* Fixed slot so empty tick labels do not shift bar heights relative to labeled ticks */
  height: 1.15em;
  line-height: 1.15;
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  overflow: visible;
  font-variant-numeric: tabular-nums;
}

.bar-count {
  font-size: 0.58rem;
  color: var(--muted);
  margin-bottom: 2px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  text-align: center;
}

.bar-chart--dense {
  /* ~24 narrow columns: min width so labels are readable; horizontal scroll on small viewports */
  gap: 1px;
  min-width: min(100%, 19rem);
}
.bar-chart--dense .bar-label { font-size: 0.55rem; }
.bar-chart--dense .bar-count { font-size: 0.5rem; }

.detail-loading {
  color: var(--muted);
  font-size: 0.9rem;
  padding: 1rem 0;
}

@media (max-width: 640px) {
  .months-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .location-row { flex-direction: column; align-items: stretch; }
  .map-container { min-height: 320px; }
  .results-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

  .detail-hero { flex-direction: column; }
  .detail-hero img { width: 100%; height: auto; max-height: 240px; }

  .bar-count { display: none; }
  .bar-chart { height: 100px; padding-top: 0.25rem; }
  .bar-chart--dense { min-width: 17.5rem; }
  .bar-chart--dense .bar-label { font-size: 0.56rem; }

  /* Species detail: compact layout + safe area (flex + no scroll: see global #panel-detail.detail-panel rules) */
  #panel-detail.detail-panel .detail-content {
    /* env(safe-area-inset-bottom) is the home indicator; add extra for Safari’s bottom toolbar / floating bar */
    padding: 0.35rem 0.55rem calc(0.35rem + max(2.5rem, env(safe-area-inset-bottom, 0px)));
  }

  #panel-detail.detail-panel .detail-charts {
    gap: 0.35rem;
  }

  /* Stack: large photo uses vertical space above text + charts */
  #panel-detail.detail-panel .detail-hero {
    flex-direction: column;
    align-items: stretch;
    gap: 0.35rem;
    margin-bottom: 0.35rem;
  }

  #panel-detail.detail-panel .detail-hero > img {
    flex: 1 1 0;
    width: 100% !important;
    min-height: 0;
    max-height: none !important;
    height: auto;
    align-self: stretch;
    object-fit: cover;
  }

  #panel-detail.detail-panel .detail-hero-info {
    flex: 0 0 auto;
    width: 100%;
    min-width: 0;
  }

  #panel-detail.detail-panel .detail-hero-info h2 {
    font-size: 0.92rem;
    line-height: 1.2;
  }

  #panel-detail.detail-panel .detail-hero-info .sci-name {
    font-size: 0.72rem;
    margin: 0 0 0.25rem;
  }

  #panel-detail.detail-panel .detail-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.2rem 0.55rem;
  }

  #panel-detail.detail-panel .detail-links a {
    font-size: 0.76rem;
  }

  #panel-detail.detail-panel .detail-section h3 {
    font-size: 0.78rem;
    margin: 0 0 0.12rem;
    font-weight: 650;
  }

  #panel-detail.detail-panel .detail-hour-note {
    margin: 0 0 0.15rem;
    font-size: 0.65rem;
  }

  #panel-detail.detail-panel .detail-section .bar-chart {
    height: 5rem;
    padding-top: 0.25rem;
  }

  #panel-detail.detail-panel .detail-loading {
    padding: 0.35rem 0;
    font-size: 0.78rem;
  }
}