/* Google Fonts: Kanit for headings/Thai text, Inter for numbers/general UI */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Kanit:wght@300;400;500;600;700&display=swap');

:root {
  /* Color Palette - Premium Emerald Dark Mode */
  --bg-primary: #0a0f0d;
  --bg-secondary: #121a16;
  --bg-card: rgba(26, 38, 32, 0.45);
  --bg-card-hover: rgba(36, 52, 44, 0.6);
  --border-color: rgba(64, 96, 80, 0.25);
  --border-color-hover: rgba(64, 96, 80, 0.4);
  
  --text-primary: #f0fdf4;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --primary: #10b981;
  --primary-glow: rgba(16, 185, 129, 0.3);
  --secondary: #06b6d4;
  --accent: #f59e0b;
  
  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.2);
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.2);
  --warning: #f59e0b;
  --warning-glow: rgba(245, 158, 11, 0.2);
  --info: #3b82f6;
  
  --font-main: 'Inter', 'Kanit', sans-serif;
  --sidebar-width: 260px;
  --glass-blur: blur(12px);
  --transition-speed: 0.3s;
  --border-radius: 16px;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(at 0% 0%, rgba(16, 185, 129, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.08) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* Sidebar Navigation */
.sidebar {
  width: var(--sidebar-width);
  background: rgba(10, 15, 13, 0.85);
  backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  padding: 24px 16px;
  transition: all var(--transition-speed) ease;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 12px 32px 12px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.brand-logo {
  font-size: 28px;
  animation: float 4s ease-in-out infinite;
}

.brand-text {
  font-weight: 700;
  font-size: 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.5px;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-item {
  width: 100%;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: all var(--transition-speed) ease;
  border: 1px solid transparent;
}

.nav-link svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  transition: transform var(--transition-speed) ease;
}

.nav-link:hover {
  background: var(--bg-card-hover);
  color: var(--primary);
  border-color: var(--border-color);
}

.nav-link:hover svg {
  transform: translateX(3px);
}

.nav-link.active {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(6, 182, 212, 0.15));
  color: var(--primary);
  border-color: rgba(16, 185, 129, 0.3);
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.05);
}

.sidebar-footer {
  margin-top: auto;
  padding: 16px 12px 0 12px;
  border-top: 1px solid var(--border-color);
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
}

/* Main Content Area */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  padding: 32px 40px;
  display: flex;
  flex-direction: column;
  gap: 32px;
  transition: all var(--transition-speed) ease;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  padding: 16px 24px;
  border-radius: var(--border-radius);
}

.header-title h1 {
  font-size: 24px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.header-title p {
  font-size: 14px;
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.live-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: var(--primary);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse 1.8s infinite;
}

/* View Sections */
.view-section {
  display: none;
  animation: fadeIn 0.4s ease-in-out forwards;
}

.view-section.active {
  display: block;
}

/* Grid & Layout Cards */
.grid-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 24px;
  transition: all var(--transition-speed) ease;
  position: relative;
  overflow: hidden;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
}

.metric-ph::before { background-color: var(--secondary); }
.metric-ec::before { background-color: var(--accent); }
.metric-temp::before { background-color: var(--danger); }
.metric-water::before { background-color: var(--info); }

.card-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.card-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.card-icon {
  font-size: 24px;
  opacity: 0.8;
}

.metric-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.metric-unit {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
}

.metric-status {
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 12px;
}

.status-ok {
  background: rgba(16, 185, 129, 0.1);
  color: var(--primary);
}

.status-warn {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent);
}

.status-crit {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

/* System Controls */
.grid-two-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 1024px) {
  .grid-two-cols {
    grid-template-columns: 1fr;
  }
}

.control-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
}

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

.control-info h4 {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 4px;
}

.control-info p {
  font-size: 12px;
  color: var(--text-secondary);
}

/* Switch styling */
.switch {
  position: relative;
  display: inline-block;
  width: 52px;
  height: 28px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(100, 116, 139, 0.3);
  transition: .4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary);
}

input:focus + .slider {
  box-shadow: 0 0 1px var(--primary);
}

input:checked + .slider:before {
  transform: translateX(24px);
}

/* Tables styling */
.table-container {
  overflow-x: auto;
  margin-top: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th {
  padding: 14px 16px;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 14px;
  border-bottom: 1px solid var(--border-color);
  background: rgba(10, 15, 13, 0.2);
}

td {
  padding: 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  vertical-align: middle;
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--border-radius);
  font-weight: 500;
  font-family: var(--font-main);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: #059669;
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.4);
}

.btn-secondary {
  background: transparent;
  border-color: var(--border-color);
  color: var(--text-primary);
}

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

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover {
  background: #dc2626;
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.4);
}

.btn-icon-only {
  padding: 8px;
  border-radius: 8px;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.badge-income { background: rgba(16, 185, 129, 0.15); color: var(--primary); }
.badge-expense { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.badge-growing { background: rgba(6, 182, 212, 0.15); color: var(--secondary); }
.badge-ready { background: rgba(245, 158, 11, 0.15); color: var(--accent); }
.badge-harvested { background: rgba(148, 163, 184, 0.15); color: var(--text-secondary); }
.badge-active { background: rgba(16, 185, 129, 0.15); color: var(--primary); }
.badge-inactive { background: rgba(239, 68, 68, 0.15); color: var(--danger); }

/* Progress Bars */
.progress-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.progress-bar-bg {
  flex: 1;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--secondary), var(--primary));
  border-radius: 4px;
  transition: width 0.5s ease;
}

/* Modals */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity var(--transition-speed) ease;
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  width: 90%;
  max-width: 500px;
  padding: 32px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  transform: scale(0.9);
  transition: transform var(--transition-speed) ease;
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.modal-title {
  font-size: 20px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
}

.modal-close:hover {
  color: var(--text-primary);
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}

.form-control {
  width: 100%;
  background: rgba(10, 15, 13, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 14px;
  transition: all var(--transition-speed) ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

/* Invert date picker calendar icon for dark mode visibility */
input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(1) brightness(1.8) contrast(1.2);
  cursor: pointer;
  border-radius: 4px;
  padding: 4px;
  transition: all 0.2s ease;
}

input[type="date"]::-webkit-calendar-picker-indicator:hover {
  background: rgba(255, 255, 255, 0.1);
}

textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

/* Search and Filters Bar */
.filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.search-box {
  position: relative;
  flex: 1;
  max-width: 320px;
}

.search-box input {
  padding-left: 40px;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  stroke: var(--text-secondary);
  stroke-width: 2;
}

.filter-options {
  display: flex;
  gap: 12px;
}

/* Vegetable Cards Grid */
.veg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.veg-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.veg-header {
  display: flex;
  align-items: center;
  gap: 16px;
}

.veg-avatar {
  width: 50px;
  height: 50px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.veg-title h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.veg-title span {
  font-size: 13px;
  color: var(--text-secondary);
}

.veg-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  background: rgba(10, 15, 13, 0.3);
  padding: 12px;
  border-radius: 10px;
  font-size: 13px;
}

.veg-detail-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.veg-detail-label {
  color: var(--text-secondary);
  font-size: 11px;
  text-transform: uppercase;
}

.veg-detail-value {
  font-weight: 600;
  color: var(--text-primary);
}

/* Calculator Styles */
.calc-card {
  max-width: 600px;
  margin: 0 auto;
}

.calc-result-box {
  background: rgba(16, 185, 129, 0.08);
  border: 1px dashed rgba(16, 185, 129, 0.3);
  border-radius: 12px;
  padding: 20px;
  margin-top: 24px;
  text-align: center;
}

.calc-result-title {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 500;
}

.calc-results-flex {
  display: flex;
  justify-content: space-around;
  gap: 16px;
}

.calc-result-item {
  flex: 1;
}

.calc-result-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.calc-result-label {
  font-size: 12px;
  color: var(--text-secondary);
}

/* Overview Summary Box */
.summary-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  background: rgba(10, 15, 13, 0.3);
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 24px;
}

.summary-strip-item {
  text-align: center;
}

.summary-strip-val {
  font-size: 20px;
  font-weight: 700;
}

.summary-strip-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Keyframes / Animations */
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
  100% { transform: translateY(0px); }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

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

/* Charts container style */
.chart-container {
  position: relative;
  height: 280px;
  width: 100%;
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
  body {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    position: relative;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 16px;
  }
  
  .brand {
    padding-bottom: 16px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
  }
  
  .nav-links {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-around;
    gap: 4px;
  }
  
  .nav-link {
    padding: 8px 12px;
    font-size: 13px;
    gap: 8px;
  }
  
  .nav-link svg {
    width: 16px;
    height: 16px;
  }
  
  .nav-link:hover svg {
    transform: none;
  }
  
  .main-content {
    margin-left: 0;
    padding: 16px;
    gap: 20px;
  }
  
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  
  .header-actions {
    width: 100%;
    justify-content: space-between;
  }
  
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-box {
    max-width: 100%;
  }
  
  .filter-options {
    justify-content: flex-end;
  }
  
  .summary-strip {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}