@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  color-scheme: light dark;
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --transition-speed: 0.25s;
  
  /* Light theme (Cream / Teal accent) */
  --bg-color: #E5DFCD;
  --text-primary: #01202e;
  --text-secondary: #016795;
  --accent-color: #009ad5; /* darker blue for light mode contrast */
  --accent-light: #00BCFF;
  --card-bg: rgba(255, 255, 255, 0.6);
  --border-color: rgba(1, 103, 149, 0.2);
  --input-bg: rgba(255, 255, 255, 0.9);
  --shadow-color: rgba(1, 32, 46, 0.1);
  --success-color: #2e7d32;
  --warning-color: #b78103;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Dark theme (Deep peacock blue / Cyan accent) */
    --bg-color: #01202e;
    --text-primary: #E5DFCD;
    --text-secondary: #00BCFF;
    --accent-color: #00BCFF;
    --accent-light: #00BCFF;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(0, 188, 255, 0.2);
    --input-bg: rgba(1, 32, 46, 0.5);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --success-color: #4caf50;
    --warning-color: #ffb74d;
  }
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-family);
  min-height: 100vh;
  padding: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
  accent-color: var(--accent-color);
}

.app-container {
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 1rem;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  font-size: 1.75rem;
  filter: drop-shadow(0 2px 4px var(--shadow-color));
}

h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* Settings Toggle Button */
.settings-toggle-btn {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
}

.settings-toggle-btn:hover {
  background: var(--border-color);
  transform: translateY(-1px);
}

.settings-toggle-btn:focus-visible {
  outline: 3px solid var(--accent-color);
  outline-offset: 2px;
}

/* Settings Panel */
.settings-panel {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.25rem;
  box-shadow: 0 8px 32px var(--shadow-color);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.settings-panel h2 {
  font-size: 1.25rem;
  font-weight: 700;
}

/* Forms */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding-left: 0.25rem;
}

input, select, textarea {
  font-family: var(--font-family);
  font-size: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--input-bg);
  color: var(--text-primary);
  min-height: 48px;
  width: 100%;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--accent-color);
  outline-offset: 1px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Add Plant Section */
.add-plant-section {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 4px 20px var(--shadow-color);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.add-plant-section h2 {
  font-size: 1.35rem;
  font-weight: 700;
}

.plant-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Buttons */
.btn {
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  min-height: 48px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 188, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0, 188, 255, 0.4);
}

.btn-secondary {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--border-color);
}

.btn:active {
  transform: translateY(0);
}

/* Dashboard Section */
.plants-dashboard-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dashboard-header h2 {
  font-size: 1.35rem;
  font-weight: 700;
}

.accordion-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Plant Card (Accordion details element) */
details.plant-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 16px var(--shadow-color);
  backdrop-filter: blur(12px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

details.plant-card[open] {
  border-color: var(--accent-color);
  box-shadow: 0 6px 24px rgba(0, 188, 255, 0.15);
}

summary.plant-summary {
  list-style: none;
  padding: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  user-select: none;
  min-height: 52px;
}

summary.plant-summary::-webkit-details-marker {
  display: none;
}

.summary-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.expand-icon {
  font-size: 1rem;
  transition: transform var(--transition-speed) ease;
  color: var(--text-secondary);
}

details[open] .expand-icon {
  transform: rotate(90deg);
}

.plant-title {
  display: flex;
  flex-direction: column;
}

.plant-name {
  font-size: 1.1rem;
  font-weight: 700;
}

.plant-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.summary-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.5rem;
  border-radius: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--border-color);
}

.badge-moisture-val {
  background: linear-gradient(135deg, rgba(0, 188, 255, 0.15), rgba(0, 188, 255, 0.05));
  color: var(--accent-color);
  border: 1px solid var(--border-color);
}

.badge-moisture-low {
  background: rgba(183, 129, 3, 0.15);
  color: var(--warning-color);
  border: 1px solid rgba(183, 129, 3, 0.3);
}

/* Card Content / Expanded Panel */
.plant-details-panel {
  padding: 0 1.25rem 1.25rem 1.25rem;
  border-top: 1px solid var(--border-color);
  margin-top: -1px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.details-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  gap: 0.5rem;
}

.details-label {
  color: var(--text-secondary);
  font-weight: 600;
}

.details-value {
  font-weight: 700;
}

.status-row {
  background: var(--border-color);
  padding: 0.75rem 1rem;
  border-radius: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
}

/* Checkboxes and styling */
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.5rem 0;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 1.2rem;
  height: 1.2rem;
  min-height: auto;
  margin: 0;
  cursor: pointer;
}

/* Accent-color fallbacks */
@supports not (accent-color: var(--accent-color)) {
  /* Visual fallback styled rules */
  .checkbox-label {
    position: relative;
    padding-left: 2rem;
  }
  .checkbox-label input[type="checkbox"] {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
  }
}

/* Utilities */
.loading-state, .empty-state {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  color: var(--bg-color);
  padding: 0.75rem 1.5rem;
  border-radius: 30px;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 8px 32px var(--shadow-color);
  z-index: 1000;
  animation: popUp 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popUp {
  from { opacity: 0; transform: translate(-50%, 20px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

.app-footer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 1rem;
}