/* ============================================================
   SD Habitat — CSS
   Earth-tone palette, mobile-first, accessible
   ============================================================ */

/* --- Tokens --- */
:root {
  --c-sage: #4a7c59;
  --c-sage-dark: #2d5a3d;
  --c-sage-light: #c4d4a0;
  --c-sand: #faf6f0;
  --c-sand-dark: #ede5d8;
  --c-terracotta: #c4724e;
  --c-terracotta-dark: #a85a3a;
  --c-oak: #6b4c3b;
  --c-sky: #5b9bd5;
  --c-text: #2c2c2c;
  --c-text-light: #5a5a5a;
  --c-white: #ffffff;
  --c-border: #ddd5c8;

  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  --font-heading: 'Georgia', 'Times New Roman', serif;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 2px 8px rgba(0,0,0,.08);
  --shadow-lg: 0 4px 20px rgba(0,0,0,.12);
  --transition: .2s ease;

  --container: 1200px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--c-text);
  background: var(--c-sand);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-sage-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }
button { cursor: pointer; font: inherit; }
select, input { font: inherit; }

/* --- Skip link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--c-sage-dark);
  color: var(--c-white);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-weight: 600;
}
.skip-link:focus { top: 16px; }

/* --- Container --- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }

/* --- Nav --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-white);
  border-bottom: 1px solid var(--c-border);
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,.95);
}
.nav {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-sage-dark);
}
.nav-logo:hover { text-decoration: none; }
.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--c-text);
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition);
}
.nav-links a:hover {
  border-bottom-color: var(--c-sage);
  text-decoration: none;
  color: var(--c-sage-dark);
}
.nav-github {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.nav-github svg {
  vertical-align: middle;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* --- Hero --- */
.hero {
  background: linear-gradient(135deg, var(--c-sage-dark) 0%, var(--c-sage) 60%, var(--c-sage-light) 100%);
  color: var(--c-white);
  padding: 80px 20px 60px;
  text-align: center;
}
.hero-content { max-width: 680px; margin: 0 auto; }
.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.2;
  margin-bottom: 8px;
}
.hero-subtitle {
  font-size: 1.15rem;
  opacity: 0.85;
  margin-bottom: 16px;
  font-style: italic;
}
.hero-desc {
  font-size: 1.05rem;
  line-height: 1.7;
  opacity: 0.9;
  margin-bottom: 28px;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  border: 2px solid transparent;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--c-white);
  color: var(--c-sage-dark);
}
.btn-primary:hover { background: var(--c-sand); }
.btn-secondary {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255,255,255,.5);
  margin-left: 12px;
}
.btn-secondary:hover { border-color: var(--c-white); background: rgba(255,255,255,.1); }

/* --- Sections --- */
.section { padding: 60px 0; }
#calendar { padding-bottom: 20px; }
#cal-wildlife-section,
#cal-maintenance-section { padding: 20px 0; }
.section-alt { background: var(--c-sand-dark); }
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  color: var(--c-sage-dark);
  margin-bottom: 8px;
}
.section-desc {
  color: var(--c-text-light);
  max-width: 700px;
  margin-bottom: 28px;
  line-height: 1.7;
}
.section-title-sm {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
}
.subsection-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--c-sage-dark);
  margin: 40px 0 16px;
}
.calendar-list {
  list-style: none;
  padding: 0;
  margin: 0;
  columns: 2;
  column-gap: 24px;
}
.calendar-list li {
  break-inside: avoid;
  padding: 8px 0;
  border-bottom: 1px solid rgba(0,0,0,.06);
}
@media (max-width: 600px) {
  .calendar-list { columns: 1; }
}

/* --- Maintenance Grid (two-column: Watering | Pruning) --- */
.cal-maintenance-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 600px) {
  .cal-maintenance-grid { grid-template-columns: 1fr; }
}
.cal-maint-column-label {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--c-sage-dark);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--c-sage-light);
}
.cal-maint-card {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px solid rgba(0,0,0,.06);
}
.cal-maint-plant {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--c-sage-dark);
}
.cal-maint-detail {
  font-size: 0.8rem;
  color: var(--c-text-light);
  text-align: right;
  flex-shrink: 0;
  margin-left: 12px;
}

/* --- Filters --- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
  align-items: center;
}
.filter-search {
  flex: 1 1 240px;
  padding: 10px 16px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-white);
  font-size: 0.95rem;
}
.filter-search:focus {
  outline: 2px solid var(--c-sage);
  outline-offset: 1px;
  border-color: var(--c-sage);
}
.filter-group {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.filter-group select {
  padding: 10px 14px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-white);
  font-size: 0.9rem;
  color: var(--c-text);
}
.filter-group select:focus { outline: 2px solid var(--c-sage); outline-offset: 1px; }
.filter-checkbox {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  cursor: pointer;
  white-space: nowrap;
}
.filter-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--c-sage);
}

/* --- Plant Grid --- */
.plant-grid {
  display: grid;
  gap: 20px;
}
.category-group { margin-bottom: 12px; }
.category-heading {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--c-oak);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--c-sage-light);
  margin-bottom: 16px;
}
.category-plants {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

/* --- Plant Card --- */
.plant-card {
  background: var(--c-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.plant-card:hover { box-shadow: var(--shadow-lg); }
.plant-card-header {
  cursor: pointer;
  display: flex;
  gap: 16px;
  padding: 16px;
}
.plant-card-header:focus-visible {
  outline: 2px solid var(--c-sage);
  outline-offset: -2px;
}
.plant-card-img {
  width: 90px;
  height: 90px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--c-sand-dark);
}
.plant-card-img.loading {
  animation: skeleton 1.2s ease-in-out infinite;
}
@keyframes skeleton {
  0%, 100% { opacity: .6; }
  50% { opacity: .3; }
}
.plant-card-info { flex: 1; min-width: 0; }
.plant-card-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--c-sage-dark);
  margin-bottom: 2px;
}
.plant-card-scientific {
  font-style: italic;
  font-size: 0.85rem;
  color: var(--c-text-light);
  margin-bottom: 6px;
}
.plant-card-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.8rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge-keystone {
  background: #fff3cd;
  color: #856404;
}
.badge-category {
  background: var(--c-sage-light);
  color: var(--c-sage-dark);
}
.badge-frequency {
  background: var(--c-sand-dark);
  color: var(--c-text-light);
}
.expand-indicator {
  font-size: 0.8rem;
  color: var(--c-text-light);
  transition: transform var(--transition);
  flex-shrink: 0;
  align-self: center;
}
.plant-card.expanded .expand-indicator { transform: rotate(180deg); }

/* --- Plant Detail (inline expansion) --- */
.plant-detail {
  display: none;
  border-top: 1px solid var(--c-border);
  padding: 0 16px 16px;
}
.plant-card.expanded .plant-detail { display: block; }

.plant-detail-top {
  display: flex;
  gap: 20px;
  padding-top: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.plant-detail-hero {
  width: 200px;
  flex-shrink: 0;
}
.plant-detail-hero img {
  width: 100%;
  border-radius: var(--radius-sm);
  aspect-ratio: 4/3;
  object-fit: cover;
  background: var(--c-sand-dark);
}
.plant-detail-hero .attribution {
  font-size: 0.72rem;
  color: var(--c-text-light);
  margin-top: 4px;
}
.plant-detail-hero .attribution a { color: var(--c-text-light); text-decoration: underline; }
.plant-detail-body { flex: 1; min-width: 200px; }
.plant-detail-desc {
  margin-bottom: 12px;
  line-height: 1.7;
  font-size: 0.95rem;
}
.plant-detail-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.plant-detail-links a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-sage-dark);
  padding: 6px 12px;
  border: 1px solid var(--c-sage);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.plant-detail-links a:hover {
  background: var(--c-sage);
  color: var(--c-white);
  text-decoration: none;
}

/* Planting requirements */
.planting-reqs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.planting-req {
  background: var(--c-sand);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}
.planting-req strong {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--c-text-light);
  margin-bottom: 2px;
}

/* --- Tabs --- */
.detail-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}
.detail-tab {
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.25;
  min-height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: none;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  color: var(--c-text-light);
  cursor: pointer;
  transition: var(--transition);
  -webkit-tap-highlight-color: transparent;
}
.detail-tab:hover { color: var(--c-sage-dark); border-color: var(--c-sage); }
.detail-tab.active {
  color: var(--c-sage-dark);
  border-color: var(--c-sage);
  background: rgba(74, 124, 89, 0.1);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* --- Maintenance tab --- */
.watering-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  margin-bottom: 12px;
}
.water-cell {
  text-align: center;
  padding: 6px 2px;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 600;
}
.water-cell .month-label {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--c-text-light);
  margin-bottom: 2px;
}
.water-none { background: var(--c-sand); color: var(--c-text-light); }
.water-low { background: #d4edff; color: #1a6fb5; }
.water-moderate { background: #87ceeb; color: #0a4a7a; }
.water-cell.water-current { outline: 2.5px solid var(--c-sage); outline-offset: -2px; }
.prune-cell {
  text-align: center;
  padding: 6px 2px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}
.prune-cell .month-label {
  display: block;
  font-size: 0.65rem;
  text-transform: uppercase;
  color: inherit;
  margin-bottom: 2px;
}
.prune-inactive { background: var(--c-sand); color: var(--c-text-light); }
.prune-active { background: #f5e6d0; color: #7a5c3a; }
.prune-cell.prune-current { outline: 2.5px solid var(--c-sage); outline-offset: -2px; }
.maintenance-note {
  font-size: 0.85rem;
  color: var(--c-text-light);
  line-height: 1.5;
  margin: 4px 0 16px;
}

.maintenance-notes {
  font-size: 0.9rem;
  line-height: 1.6;
}
.maintenance-notes p { margin-bottom: 8px; }
.maintenance-notes strong { color: var(--c-oak); }

/* --- Phenology tab --- */
.phenology-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  margin-bottom: 8px;
}
.pheno-month {
  border-radius: 6px;
  padding: 6px 2px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-height: 38px;
}
.pheno-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.phenology-empty { background: var(--c-sand); color: var(--c-text-light); }
.pheno-seed-stripe {
  background: repeating-linear-gradient(135deg,#c8b48a,#c8b48a 3px,#bfa97a 3px,#bfa97a 5px);
  color: var(--c-text);
}
.pheno-berry-dot { position: relative; }
.pheno-berry-dot::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.65);
  border: 1px solid rgba(0,0,0,.12);
  pointer-events: none;
}
.pheno-text-light { color: var(--c-white); }
.pheno-text-light .pheno-label { color: var(--c-white); }
.pheno-month.pheno-current { outline: 2.5px solid var(--c-sage); outline-offset: -2px; }

.phenology-legend {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.phenology-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.legend-swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  flex-shrink: 0;
  position: relative;
  border: 1px solid rgba(0,0,0,.1);
}
.legend-swatch.pheno-berry-dot::after {
  width: 5px; height: 5px;
}
.legend-swatch.pheno-seed-stripe {
  background: repeating-linear-gradient(135deg,#c8b48a,#c8b48a 2px,#bfa97a 2px,#bfa97a 3.5px);
}
.phenology-eco {
  font-size: 0.88rem;
  color: var(--c-text-light);
  line-height: 1.6;
  margin-top: 8px;
  padding: 10px;
  background: var(--c-sand);
  border-radius: var(--radius-sm);
}
.bloom-colors {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.color-swatch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  padding: 3px 8px;
  border-radius: 12px;
  background: var(--c-sand);
  border: 1px solid var(--c-border);
}
.color-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid rgba(0,0,0,.15);
}

/* --- Wildlife tab --- */
.wildlife-entry {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--c-border);
  align-items: flex-start;
}
.wildlife-entry:last-child { border-bottom: none; }
.wildlife-img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--c-sand-dark);
}
.wildlife-info { flex: 1; }
.wildlife-species {
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 2px;
}
.wildlife-species-link {
  color: inherit;
  text-decoration: none;
}
.wildlife-species-link:hover {
  color: var(--c-sage-dark);
  text-decoration: underline;
}
.wildlife-img-link { display: block; flex-shrink: 0; }
.wildlife-activity {
  font-size: 0.8rem;
  color: var(--c-text-light);
  margin-bottom: 4px;
}
.wildlife-months {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 3px;
  margin-bottom: 4px;
}
.wl-month {
  border-radius: 5px;
  padding: 3px 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.wl-month-label {
  font-size: 0.58rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.wl-month-active { background: var(--c-sage-light); color: var(--c-sage-dark); }
.wl-month-inactive { background: var(--c-sand); color: var(--c-text-light); }
.wl-month.wl-month-current { outline: 2.5px solid var(--c-sage); outline-offset: -2px; }
.wildlife-notes {
  font-size: 0.82rem;
  color: var(--c-text-light);
  font-style: italic;
}

/* --- Observations tab --- */
.obs-histogram {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 4px;
  align-items: end;
  height: 120px;
  margin-bottom: 8px;
  padding: 0 2px;
}
.obs-bar-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: flex-end;
}
.obs-bar {
  width: 100%;
  background: var(--c-sage);
  border-radius: 3px 3px 0 0;
  min-height: 2px;
  transition: height var(--transition);
}
.obs-bar-label {
  font-size: 0.6rem;
  color: var(--c-text-light);
  margin-top: 4px;
}
.obs-bar-value {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--c-sage-dark);
  margin-bottom: 2px;
}

.obs-trend {
  display: flex;
  gap: 8px;
  align-items: end;
  height: 80px;
  margin-bottom: 8px;
}
.obs-trend-bar-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: flex-end;
}
.obs-trend-bar {
  width: 100%;
  max-width: 48px;
  background: var(--c-sky);
  border-radius: 3px 3px 0 0;
  min-height: 2px;
}
.obs-trend-label {
  font-size: 0.7rem;
  color: var(--c-text-light);
  margin-top: 4px;
}
.obs-trend-value {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 2px;
}
.obs-total {
  font-size: 0.85rem;
  color: var(--c-text-light);
  margin-bottom: 8px;
}

/* --- Calendar Section --- */
.calendar-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.month-btn {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-size: 1.1rem;
  color: var(--c-sage-dark);
  transition: var(--transition);
}
.month-btn:hover { background: var(--c-sage); color: var(--c-white); }
.calendar-month-label {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--c-sage-dark);
}
.calendar-card h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--c-sage-dark);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.cal-icon { font-size: 1.2rem; }
.cal-plant-name { font-weight: 600; color: var(--c-sage-dark); }
.cal-detail { color: var(--c-text-light); font-size: 0.85rem; }
.cal-empty { color: var(--c-text-light); font-style: italic; }

/* --- Calendar Wildlife Grid --- */
.cal-wildlife-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 768px) {
  .cal-wildlife-grid { grid-template-columns: 1fr; }
}
.cal-wl-column-label {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--c-sage-dark);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--c-sage-light);
}
.cal-wl-threshold {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--c-text-light);
}
.cal-wl-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(0,0,0,.06);
}
.cal-wl-img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--c-sand-dark);
}
.cal-wl-info { min-width: 0; }
.cal-wl-name {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--c-sage-dark);
  text-decoration: none;
}
.cal-wl-name:hover { text-decoration: underline; }
.cal-wl-img-link { display: block; flex-shrink: 0; }
.cal-wl-detail {
  display: block;
  font-size: 0.78rem;
  color: var(--c-text-light);
  line-height: 1.3;
}
.cal-wl-interactions {
  margin-top: 2px;
}
.cal-wl-interaction {
  display: block;
  font-size: 0.75rem;
  color: var(--c-text-light);
  line-height: 1.4;
}

/* --- Phenology Chart (garden-wide) --- */
.phenology-chart {
  background: var(--c-white);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.pheno-scroll {
  overflow-x: auto;
  margin: 0 -16px;
}
.phenology-chart table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}
.phenology-chart th {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--c-text-light);
  padding: 6px 4px;
  text-align: center;
}
.phenology-chart th:first-child,
.phenology-chart td:first-child {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--c-white);
  padding-left: 16px;
}
.phenology-chart th:first-child {
  text-align: left;
}
.phenology-chart td {
  padding: 3px 2px;
  text-align: center;
}
.phenology-chart td:first-child {
  text-align: left;
  font-size: 0.82rem;
  font-weight: 500;
  padding-right: 8px;
  white-space: nowrap;
  box-shadow: 2px 0 4px rgba(0,0,0,.06);
}
.pheno-cell {
  height: 22px;
  border-radius: 3px;
  margin: 1px;
  position: relative;
  border: 1px solid rgba(0,0,0,.06);
}
.phenology-chart th.current-month {
  background: var(--c-sage);
  color: var(--c-white);
  border-radius: 4px 4px 0 0;
}
.phenology-chart td.current-month {
  background: rgba(74, 124, 89, .10);
}
.phenology-chart td.current-month .pheno-cell {
  outline: 2px solid var(--c-sage);
  outline-offset: -1px;
}

/* --- Trend Chart (garden-wide sparklines) --- */
.trend-chart { overflow: visible; }
.trend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.trend-card {
  background: var(--c-white);
  border-radius: var(--radius);
  padding: 14px 14px 10px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.trend-card-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.trend-card-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--c-sage-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.trend-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-left: 6px;
}
.trend-up { background: #d4edda; color: #155724; }
.trend-down { background: #f8d7da; color: #721c24; }
.trend-flat { background: var(--c-sand-dark); color: var(--c-text-light); }
.trend-card-label {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--c-text-light);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 6px 0 2px;
}
.trend-month-svg { display: block; width: 100%; }
.trend-sparkline { display: block; width: 100%; }

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.about-card {
  background: var(--c-white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.about-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--c-sage-dark);
  margin-bottom: 10px;
}
.about-card p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--c-text-light);
}

/* --- Footer --- */
.site-footer {
  background: var(--c-sage-dark);
  color: rgba(255,255,255,.85);
  padding: 40px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  margin-bottom: 24px;
}
.footer-section h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  margin-bottom: 12px;
  color: var(--c-white);
}
.footer-section ul { font-size: 0.88rem; line-height: 1.8; }
.footer-section a { color: var(--c-sage-light); }
.footer-section a:hover { color: var(--c-white); }
.footer-section p { font-size: 0.88rem; line-height: 1.7; }
.footer-cache {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid rgba(255,255,255,.15);
  padding: 12px 0;
  flex-wrap: wrap;
}
.cache-status {
  font-size: 0.75rem;
  opacity: 0.7;
}
.refresh-cache-btn {
  font-size: 0.75rem;
  padding: 4px 12px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 4px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: background .2s, border-color .2s;
}
.refresh-cache-btn:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.5);
}
.footer-copy {
  font-size: 0.78rem;
  opacity: 0.6;
  padding-top: 8px;
}

/* --- Back to top (floating) --- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--c-sage);
  color: var(--c-white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background var(--transition), box-shadow var(--transition);
  z-index: 90;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--c-sage-dark);
  box-shadow: 0 6px 24px rgba(0,0,0,.15);
}
.back-to-top:focus-visible {
  outline: 2px solid var(--c-sage-dark);
  outline-offset: 3px;
}

/* --- Mobile --- */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--c-white);
    flex-direction: column;
    padding: 16px 20px;
    gap: 12px;
    border-bottom: 1px solid var(--c-border);
    box-shadow: var(--shadow-lg);
  }
  .nav-links.open { display: flex; }

  .hero { padding: 50px 20px 40px; }
  .btn-secondary { margin-left: 0; margin-top: 8px; }

  .section { padding: 40px 0; }

  .category-plants {
    grid-template-columns: 1fr;
  }

  .plant-detail-top { flex-direction: column; }
  .plant-detail-hero { width: 100%; }


  .obs-histogram {
    grid-template-columns: repeat(6, 1fr);
  }

  .back-to-top {
    bottom: 1rem;
    right: 1rem;
  }
}

@media (max-width: 480px) {
  .plant-card-header { gap: 10px; padding: 12px; }
  .plant-card-img { width: 70px; height: 70px; }
  .filters { flex-direction: column; align-items: stretch; }
  /* flex-basis 240px on .filter-search is width in row layout but becomes height in column — reset for stacked filters */
  .filter-search {
    flex: 0 1 auto;
    width: 100%;
    min-width: 0;
  }
  .filter-group { width: 100%; }
  .filter-group select { flex: 1; }
}

@media print {
  .back-to-top {
    display: none !important;
  }
}