:root {
  --green: #2d6a4f;
  --green-light: #52b788;
  --green-dark: #1b4332;
  --cream: #f8f9fa;
  --red: #e63946;
  --text: #212529;
  --shadow: 0 2px 8px rgba(0,0,0,0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--cream);
  color: var(--text);
  min-height: 100vh;
}

.app {
  max-width: 480px;
  margin: 0 auto;
  padding-bottom: 80px;
}

header {
  background: var(--green);
  color: white;
  padding: 24px 16px;
  text-align: center;
}

header h1 { font-size: 1.8rem; margin-bottom: 4px; }
header p { opacity: 0.9; font-size: 0.95rem; }

.tabs {
  display: flex;
  background: white;
  border-bottom: 1px solid #ddd;
  position: sticky;
  top: 0;
  z-index: 10;
}

.tab-btn {
  flex: 1;
  padding: 14px 8px;
  border: none;
  background: white;
  font-size: 0.85rem;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
}

.tab-btn.active {
  border-bottom-color: var(--green);
  color: var(--green);
  font-weight: 600;
}

.tab-content {
  display: none;
  padding: 16px;
}

.tab-content.active { display: block; }

h2 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  color: var(--green-dark);
}

.plant-list { display: flex; flex-direction: column; gap: 12px; }

.plant-card {
  background: white;
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--shadow);
  position: relative;
}

.plant-card.overdue {
  border-left: 4px solid var(--red);
}

.plant-card.due-soon {
  border-left: 4px solid #f4a261;
}

.plant-card.ok {
  border-left: 4px solid var(--green-light);
}

.plant-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 8px;
}

.plant-name {
  font-weight: 600;
  font-size: 1.1rem;
}

.plant-type {
  color: #666;
  font-size: 0.85rem;
  margin-top: 2px;
}

.plant-location {
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 20px;
  background: #e9ecef;
}

.plant-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
}

.plant-status {
  font-size: 0.85rem;
}

.plant-status .overdue-text { color: var(--red); font-weight: 600; }
.plant-status .due-text { color: #f4a261; font-weight: 600; }
.plant-status .ok-text { color: var(--green); }

.water-btn {
  background: var(--green);
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
}

.water-btn:active { transform: scale(0.97); }

.card-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #eee;
}

.card-actions button {
  flex: 1;
  padding: 6px;
  border: 1px solid #ddd;
  background: white;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
}

.empty {
  text-align: center;
  color: #888;
  padding: 40px 20px;
}

/* Form */
form label {
  display: block;
  margin-bottom: 14px;
  font-size: 0.9rem;
  font-weight: 500;
}

form input, form select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
  background: white;
}

.btn-primary {
  width: 100%;
  padding: 14px;
  background: var(--green);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
}

.btn-primary:active { transform: scale(0.98); }

.btn-secondary {
  padding: 10px 16px;
  background: #e9ecef;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 100;
  align-items: center;
  justify-content: center;
}

.modal.active { display: flex; }

.modal-content {
  background: white;
  border-radius: 16px;
  padding: 24px;
  width: 90%;
  max-width: 400px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-content h3 {
  margin-bottom: 16px;
  color: var(--green-dark);
}

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.modal-actions button { flex: 1; }

/* Install prompt */
.install-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--green);
  color: white;
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 50;
}

.install-bar button {
  background: white;
  color: var(--green);
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}

/* DB Search */
#db-search-box { margin-bottom: 20px; }

.db-results {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid #ddd;
  border-radius: 8px;
  margin-top: 8px;
  background: white;
  display: none;
}

.db-results.active { display: block; }

.db-result-item {
  padding: 10px 12px;
  cursor: pointer;
  border-bottom: 1px solid #eee;
  font-size: 0.9rem;
}

.db-result-item:last-child { border-bottom: none; }

.db-result-item:hover { background: #f0f7f4; }

.db-result-item .db-result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2px;
}
.db-result-item .db-name { font-weight: 600; color: var(--green-dark); }
.db-result-item .db-location-badge {
  font-size: 0.9rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: #e9ecef;
}
.db-result-item .db-type { color: #888; font-size: 0.8rem; }
.db-result-item .db-note { color: #666; font-size: 0.8rem; margin-top: 2px; }

/* Divider */
.db-divider {
  text-align: center;
  margin: 16px 0;
  color: #888;
  font-size: 0.85rem;
  position: relative;
}

.db-divider::before,
.db-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 40%;
  height: 1px;
  background: #ddd;
}

.db-divider::before { left: 0; }
.db-divider::after { right: 0; }

/* Section Header with Calendar Export */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.section-header h2 {
  margin-bottom: 0;
}

.btn-small {
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--green);
  color: var(--green);
  background: white;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-small:hover {
  background: var(--green);
  color: white;
}