/* ================= DESIGN SYSTEM VARIABLES ================= */
:root {
  /* Color Palette */
  --bg-primary: #0b0f19;
  --bg-secondary: #131a26;
  --bg-tertiary: #1c2638;
  --bg-hover: #222f46;
  
  --accent-green: #10b981;
  --accent-green-glow: rgba(16, 185, 129, 0.15);
  --accent-green-hover: #059669;
  
  --accent-blue: #3b82f6;
  --accent-blue-glow: rgba(59, 130, 246, 0.15);
  --accent-blue-hover: #2563eb;
  
  --accent-amber: #f59e0b;
  --accent-amber-glow: rgba(245, 158, 11, 0.15);
  
  --accent-red: #ef4444;
  --accent-red-glow: rgba(239, 68, 68, 0.15);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.04);
  
  /* Glassmorphism Styles */
  --glass-bg: rgba(19, 26, 38, 0.8);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-shadow: 0 10px 30px 0 rgba(0, 0, 0, 0.3);
  
  /* Typography */
  --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ================= RESET & GENERAL BASE ================= */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-primary);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ================= APP SHELL LAYOUT ================= */
.app-container {
  display: flex;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar Navigation */
.sidebar {
  width: 280px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  flex-shrink: 0;
  z-index: 100;
}

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

.logo-icon {
  position: relative;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-primary) 100%);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.snowflake-icon {
  color: var(--accent-blue);
  width: 18px;
  height: 18px;
}

.leaf-icon {
  color: var(--accent-green);
  width: 14px;
  height: 14px;
  position: absolute;
  bottom: 6px;
  right: 6px;
}

.logo-text h2 {
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.logo-text span {
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: block;
}

.sidebar-nav {
  flex-grow: 1;
  padding: 24px 16px;
  overflow-y: auto;
}

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

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.nav-link i,
.nav-link svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

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

.nav-link:hover i,
.nav-link:hover svg {
  transform: translateX(2px);
}

.nav-link.active {
  background: linear-gradient(90deg, var(--accent-green-glow) 0%, transparent 100%);
  border-left: 3px solid var(--accent-green);
  color: var(--accent-green);
  font-weight: 600;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: rgba(0, 0, 0, 0.05);
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--accent-green);
  color: var(--bg-primary);
  font-family: var(--font-display);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.user-role {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.btn-logout {
  color: var(--text-muted);
}
.btn-logout:hover {
  color: var(--accent-red);
}

/* Main Content Area */
.main-content {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* Top Header */
.top-header {
  height: 80px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

#page-title {
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

#page-subtitle {
  font-size: 0.85rem;
  margin-top: 2px;
}

.sensor-badges {
  display: flex;
  gap: 12px;
}

.sensor-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.sensor-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.sensor-badge.success .sensor-dot {
  background-color: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
}

.sensor-badge.danger .sensor-dot {
  background-color: var(--accent-red);
  box-shadow: 0 0 8px var(--accent-red);
}

.pulsing {
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.9); opacity: 0.4; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.4; }
}

.sensor-label {
  color: var(--text-secondary);
}

.sensor-value {
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Content Body */
.content-body {
  flex-grow: 1;
  padding: 32px;
  overflow-y: auto;
}

.tab-pane {
  display: none;
  animation: fadeIn var(--transition-fast) forwards;
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ================= COMMON UI COMPONENTS ================= */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.btn-icon {
  padding: 8px;
  border-radius: 8px;
  background: transparent;
  border: none;
}

.btn-primary {
  background-color: var(--accent-green);
  color: var(--bg-primary);
}
.btn-primary:hover {
  background-color: var(--accent-green-hover);
}

.btn-secondary {
  background-color: var(--accent-blue);
  color: var(--text-primary);
}
.btn-secondary:hover {
  background-color: var(--accent-blue-hover);
}

.btn-success {
  background-color: var(--accent-green);
  color: var(--bg-primary);
}

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

.btn-small {
  padding: 6px 12px;
  font-size: 0.75rem;
}

.w-full {
  width: 100%;
}

.hidden {
  display: none !important;
}

/* Card layout */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.card-header {
  margin-bottom: 20px;
}

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

.card-header h3 {
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

/* ================= KPI GRID & CARDS ================= */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.kpi-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--glass-shadow);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.kpi-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.15);
}

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

.kpi-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  line-height: 1.4;
}

.kpi-icon-bg {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.kpi-icon-bg.bg-emerald { background-color: var(--accent-green-glow); color: var(--accent-green); }
.kpi-icon-bg.bg-blue { background-color: var(--accent-blue-glow); color: var(--accent-blue); }
.kpi-icon-bg.bg-amber { background-color: var(--accent-amber-glow); color: var(--accent-amber); }
.kpi-icon-bg.bg-indigo { background-color: rgba(99, 102, 241, 0.15); color: #818cf8; }

.kpi-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.kpi-footer {
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.progress-footer {
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.progress-bar-container {
  width: 100%;
  height: 6px;
  background-color: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--accent-blue);
  border-radius: 4px;
  transition: width 1s ease-in-out;
}

.progress-bar.bg-green { background-color: var(--accent-green); }
.progress-bar.bg-blue { background-color: var(--accent-blue); }
.progress-bar.bg-red { background-color: var(--accent-red); }

/* ================= CHARTS GRID ================= */
.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

@media (max-width: 1200px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

.card-chart {
  display: flex;
  flex-direction: column;
}

.donut-chart-container {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

/* ================= TABLES ================= */
.table-card {
  padding: 0;
  overflow: hidden;
}

.table-card .card-header {
  padding: 24px 24px 16px 24px;
  margin-bottom: 0;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

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

.data-table th {
  background-color: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.85rem;
  color: var(--text-primary);
}

.data-table tbody tr {
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.data-table tbody tr:hover td {
  background-color: var(--bg-hover) !important;
}

/* Ensure table-responsive supports sticky cells */
.table-responsive {
  position: relative;
  overflow-x: auto;
}

/* Base style for sticky cells to prevent dynamic sizing misalignment */
.bookings-table th:nth-child(1), .bookings-table td:nth-child(1),
.loans-table th:nth-child(1), .loans-table td:nth-child(1) {
  min-width: 110px;
  max-width: 110px;
  width: 110px;
}

/* Desktop & Tablet sticky positioning */
@media (min-width: 768px) {
  /* Bookings & Loans tables: Columns 2 (Name) & 3 (Phone) */
  .bookings-table th:nth-child(2), .bookings-table td:nth-child(2),
  .loans-table th:nth-child(2), .loans-table td:nth-child(2) {
    position: sticky;
    left: 0;
    z-index: 5;
    background-color: var(--bg-secondary) !important;
    min-width: 180px;
    max-width: 180px;
    width: 180px;
  }
  .bookings-table th:nth-child(3), .bookings-table td:nth-child(3),
  .loans-table th:nth-child(3), .loans-table td:nth-child(3) {
    position: sticky;
    left: 180px;
    z-index: 5;
    background-color: var(--bg-secondary) !important;
    min-width: 120px;
    max-width: 120px;
    width: 120px;
    box-shadow: 2px 0 5px -1px rgba(0, 0, 0, 0.4);
  }

  /* Farmers management table: Columns 1 (Phone) & 2 (Name) */
  .farmers-table th:nth-child(1), .farmers-table td:nth-child(1) {
    position: sticky;
    left: 0;
    z-index: 5;
    background-color: var(--bg-secondary) !important;
    min-width: 120px;
    max-width: 120px;
    width: 120px;
  }
  .farmers-table th:nth-child(2), .farmers-table td:nth-child(2) {
    position: sticky;
    left: 120px;
    z-index: 5;
    background-color: var(--bg-secondary) !important;
    min-width: 180px;
    max-width: 180px;
    width: 180px;
    box-shadow: 2px 0 5px -1px rgba(0, 0, 0, 0.4);
  }

  /* Approval Bookings table: Columns 1 (Name) & 2 (Phone) */
  .approval-bookings-table th:nth-child(1), .approval-bookings-table td:nth-child(1) {
    position: sticky;
    left: 0;
    z-index: 5;
    background-color: var(--bg-secondary) !important;
    min-width: 180px;
    max-width: 180px;
    width: 180px;
  }
  .approval-bookings-table th:nth-child(2), .approval-bookings-table td:nth-child(2) {
    position: sticky;
    left: 180px;
    z-index: 5;
    background-color: var(--bg-secondary) !important;
    min-width: 120px;
    max-width: 120px;
    width: 120px;
    box-shadow: 2px 0 5px -1px rgba(0, 0, 0, 0.4);
  }

  /* Approval Payments & Releases tables: Column 2 (Phone) */
  .approval-payments-table th:nth-child(2), .approval-payments-table td:nth-child(2),
  .approval-releases-table th:nth-child(2), .approval-releases-table td:nth-child(2) {
    position: sticky;
    left: 0;
    z-index: 5;
    background-color: var(--bg-secondary) !important;
    min-width: 120px;
    max-width: 120px;
    width: 120px;
    box-shadow: 2px 0 5px -1px rgba(0, 0, 0, 0.4);
  }
}

/* Mobile responsive sticky positioning (phone version) */
@media (max-width: 767px) {
  /* Bookings & Loans tables: Column 2 (Name) only */
  .bookings-table th:nth-child(2), .bookings-table td:nth-child(2),
  .loans-table th:nth-child(2), .loans-table td:nth-child(2) {
    position: sticky;
    left: 0;
    z-index: 5;
    background-color: var(--bg-secondary) !important;
    min-width: 150px;
    max-width: 150px;
    width: 150px;
    box-shadow: 2px 0 5px -1px rgba(0, 0, 0, 0.4);
  }

  /* Farmers management table: Column 2 (Name) only */
  .farmers-table th:nth-child(2), .farmers-table td:nth-child(2) {
    position: sticky;
    left: 0;
    z-index: 5;
    background-color: var(--bg-secondary) !important;
    min-width: 150px;
    max-width: 150px;
    width: 150px;
    box-shadow: 2px 0 5px -1px rgba(0, 0, 0, 0.4);
  }

  /* Approval Bookings table: Column 1 (Name) only */
  .approval-bookings-table th:nth-child(1), .approval-bookings-table td:nth-child(1) {
    position: sticky;
    left: 0;
    z-index: 5;
    background-color: var(--bg-secondary) !important;
    min-width: 150px;
    max-width: 150px;
    width: 150px;
    box-shadow: 2px 0 5px -1px rgba(0, 0, 0, 0.4);
  }
}

.data-table td strong {
  font-family: var(--font-mono);
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-stored {
  background-color: var(--accent-green-glow);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-loan {
  background-color: var(--accent-amber-glow);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-released {
  background-color: rgba(148, 163, 184, 0.1);
  color: var(--text-secondary);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.badge-in {
  background-color: var(--accent-blue-glow);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-out {
  background-color: rgba(168, 85, 247, 0.15);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.badge-accountant {
  background-color: rgba(168, 85, 247, 0.15);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.3);
}

/* Table action bar */
.table-actions-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}

.search-box {
  position: relative;
  flex-grow: 1;
  max-width: 400px;
}

.search-box i,
.search-box svg {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 16px;
  height: 16px;
}

.search-box input {
  width: 100%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 16px 10px 42px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-green);
  box-shadow: 0 0 0 2px var(--accent-green-glow);
}

.filter-group {
  display: flex;
  gap: 12px;
  align-items: center;
}

.filter-group select {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  outline: none;
}

/* ================= CHAMBER VIEW ================= */
.chamber-monitoring-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
}

@media (max-width: 900px) {
  .chamber-monitoring-layout {
    grid-template-columns: 1fr;
  }
}

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

.chamber-btn {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.chamber-btn:hover {
  background-color: var(--bg-hover);
  border-color: var(--text-muted);
}

.chamber-btn.active {
  background: linear-gradient(135deg, var(--bg-hover) 0%, var(--bg-secondary) 100%);
  border-color: var(--accent-green);
  box-shadow: 0 0 0 1px var(--accent-green-glow);
}

.btn-delete-chamber {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-delete-chamber:hover {
  color: var(--accent-red) !important;
  background-color: rgba(239, 68, 68, 0.15) !important;
}

.chamber-info h4 {
  font-size: 0.95rem;
  font-family: var(--font-display);
}

.chamber-info p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.chamber-status-indicator {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.chamber-status-indicator .temp {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
}

.chamber-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 20px;
}

.chamber-metrics {
  display: flex;
  gap: 24px;
}

.chamber-metrics .metric {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.chamber-metrics .metric-lbl {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.chamber-metrics .metric-val {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
}

.chamber-layout-grid-container {
  margin-top: 24px;
}

.grid-legend {
  display: flex;
  gap: 16px;
  font-size: 0.75rem;
  margin-bottom: 20px;
  color: var(--text-secondary);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.color-box {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  display: inline-block;
}

.color-box.empty { background-color: var(--bg-tertiary); border: 1px solid var(--border-color); }
.color-box.medium { background-color: rgba(16, 185, 129, 0.4); border: 1px solid rgba(16, 185, 129, 0.6); }
.color-box.full { background-color: var(--accent-green); }

.rack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 16px;
}

.rack-node {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.rack-node:hover {
  transform: scale(1.03);
  border-color: var(--accent-green);
}

.rack-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 8px;
  z-index: 2;
}

.rack-usage {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  z-index: 2;
}

.rack-fill-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(16, 185, 129, 0.15);
  border-top: 1px solid rgba(16, 185, 129, 0.3);
  transition: height 0.5s ease-out;
}

.rack-node.empty .rack-fill-bar {
  background-color: rgba(148, 163, 184, 0.05);
  border-top: 1px solid var(--border-light);
}

.rack-node.medium .rack-fill-bar {
  background-color: rgba(16, 185, 129, 0.2);
  border-top: 1px solid rgba(16, 185, 129, 0.5);
}

.rack-node.full .rack-fill-bar {
  background-color: rgba(16, 185, 129, 0.45);
  border-top: 1px solid var(--accent-green);
}

/* Fan spin animation */
.spin-animation {
  animation: spin 1.2s linear infinite;
  transform-origin: center;
  display: inline-block;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}


.select-chamber-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 40px;
}

.massive-icon {
  width: 64px;
  height: 64px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

/* ================= LOANS / DADAN ================= */
.loans-overview-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 24px;
}

@media (max-width: 1000px) {
  .loans-overview-grid {
    grid-template-columns: 1fr;
  }
}

.loan-stats-rows {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}

.stat-row span {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.text-xl {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
}

/* Calculator result cards */
.calculator-results {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.result-tile {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
}

.result-tile .lbl {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.result-tile .val {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
}

.result-tile.highlight {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--accent-green-glow) 0%, rgba(0,0,0,0) 100%);
  border-color: var(--accent-green);
}

.result-tile.highlight .val {
  color: var(--accent-green);
  font-size: 1.35rem;
}

/* ================= FINANCIALS / REPORTS ================= */
.report-overview-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
}

@media (max-width: 1000px) {
  .report-overview-grid {
    grid-template-columns: 1fr;
  }
}

.balance-sheet {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.balance-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.lbl-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lbl-wrap h4 {
  font-size: 0.85rem;
  font-weight: 600;
}

.lbl-wrap p {
  font-size: 0.75rem;
}

.icon-indicator {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-indicator i,
.icon-indicator svg {
  width: 16px;
  height: 16px;
}

.bg-soft-green { background-color: var(--accent-green-glow); color: var(--accent-green); }
.bg-soft-blue { background-color: var(--accent-blue-glow); color: var(--accent-blue); }
.bg-soft-amber { background-color: var(--accent-amber-glow); color: var(--accent-amber); }
.bg-soft-purple { background-color: rgba(168, 85, 247, 0.15); color: #c084fc; }

.balance-item strong {
  font-family: var(--font-mono);
  font-size: 1.15rem;
}

.text-green { color: var(--accent-green); }
.text-blue { color: var(--accent-blue); }
.text-amber { color: var(--accent-amber); }
.text-purple { color: #c084fc; }

.chamber-health-bars {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
}

.health-item .lbl-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

/* ================= MODALS & FORMS ================= */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 1;
  transition: opacity var(--transition-fast) ease;
}

.modal-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
  animation: modalScale var(--transition-fast) forwards;
}

@keyframes modalScale {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  font-size: 1.25rem;
}

.btn-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
}
.btn-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background-color: rgba(0, 0, 0, 0.05);
}

/* Form Styles */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.col-span-2 {
  grid-column: span 2;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-control {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  outline: none;
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-green);
  box-shadow: 0 0 0 2px var(--accent-green-glow);
}

.form-control[readonly] {
  background-color: rgba(255, 255, 255, 0.02);
  color: var(--text-muted);
  cursor: not-allowed;
}

/* Alert Boxes */
.alert-box {
  display: flex;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 0.8rem;
  margin-top: 12px;
}

.alert-warning {
  background-color: var(--accent-amber-glow);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.alert-info {
  background-color: var(--accent-blue-glow);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

/* Bill settlement visuals */
.bill-summary-card {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
}

.bill-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bill-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.bill-row.divider {
  border-bottom: 1px solid var(--border-color);
  margin: 6px 0;
}

.bill-row strong {
  font-family: var(--font-mono);
}

.bill-row.total {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-green);
}
.bill-row.total strong {
  font-size: 1.2rem;
}

/* ================= PRINT PREVIEW & DOCUMENT STYLES ================= */
.print-modal-card {
  max-width: 800px;
  width: 95%;
}

.print-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.printable-area {
  background-color: #fff;
  color: #1a1a1a;
  padding: 40px;
  border-radius: 8px;
  min-height: 400px;
}

/* Clean Receipt Styles (Black on White for real prints) */
.print-receipt {
  font-family: var(--font-body);
  color: #1a1a1a;
}

.receipt-header {
  text-align: center;
  border-bottom: 2px double #1a1a1a;
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.receipt-header h1 {
  color: #111;
  font-size: 1.6rem;
  margin-bottom: 4px;
}

.receipt-header p {
  font-size: 0.8rem;
  color: #555;
}

.receipt-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
  font-size: 0.85rem;
}

.receipt-meta div p {
  margin-bottom: 6px;
}

.receipt-meta strong {
  color: #111;
}

.receipt-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
}

.receipt-table th {
  border-bottom: 1px solid #1a1a1a;
  border-top: 1px solid #1a1a1a;
  padding: 8px 12px;
  font-size: 0.8rem;
  text-transform: uppercase;
  text-align: left;
}

.receipt-table td {
  padding: 10px 12px;
  border-bottom: 1px dashed #ccc;
  font-size: 0.85rem;
}

.receipt-table td strong {
  font-family: var(--font-mono);
}

.receipt-summary {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  margin-bottom: 40px;
}

.receipt-summary-row {
  display: flex;
  width: 250px;
  justify-content: space-between;
  font-size: 0.85rem;
}

.receipt-summary-row.total {
  border-top: 1px solid #1a1a1a;
  padding-top: 8px;
  font-weight: 700;
  font-size: 1rem;
}

.receipt-summary-row strong {
  font-family: var(--font-mono);
}

.receipt-signatures {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 80px;
  margin-top: 60px;
  text-align: center;
  font-size: 0.8rem;
}

.receipt-signatures div {
  border-top: 1px solid #aaa;
  padding-top: 8px;
}

/* CSS @media print block to override layout during browser printing */
@media print {
  body * {
    visibility: hidden;
  }
  
  .printable-area, .printable-area * {
    visibility: visible;
  }
  
  .printable-area {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    border: none;
    box-shadow: none;
    padding: 0;
    margin: 0;
    background: transparent;
  }
  
  .modal-overlay {
    position: absolute;
    background: transparent;
    backdrop-filter: none;
  }
}

/* ================= LOGIN SCREEN OVERLAY ================= */
.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  transition: opacity var(--transition-normal);
}

.login-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.login-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
  text-align: center;
  backdrop-filter: blur(16px);
  animation: slideUp var(--transition-normal);
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.login-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 12px;
}

.login-card span {
  font-size: 0.85rem;
  display: block;
  margin-top: 4px;
}

.shake-animation {
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

/* ================= MOBILE RESPONSIVENESS ================= */

/* Sidebar Backdrop Overlay */
.sidebar-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 99;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.sidebar-backdrop.active {
  display: block;
  opacity: 1;
}

@media (max-width: 768px) {
  /* Sidebar Drawer styling */
  .sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    height: 100%;
    z-index: 100;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  .sidebar.sidebar-open {
    left: 0;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
  }

  /* Make toggle button visible */
  #menu-toggle-btn {
    display: flex !important;
  }

  /* Adjust page paddings and headers */
  .top-header {
    height: auto !important;
    min-height: 80px;
    padding: 16px !important;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }
  
  .header-left {
    justify-content: flex-start;
  }

  .header-right {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 12px;
  }

  .sensor-badges {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
  }

  .content-body {
    padding: 16px !important;
  }

  /* Responsive layout grids */
  .dashboard-grid {
    grid-template-columns: 1fr !important;
    gap: 16px;
  }

  .chamber-monitoring-layout {
    grid-template-columns: 1fr !important;
    gap: 16px;
  }

  .table-actions-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .search-box {
    max-width: 100% !important;
  }

  .filter-group {
    flex-wrap: wrap;
    width: 100%;
  }

  .filter-group select,
  .filter-group button {
    flex-grow: 1;
    width: 100%;
  }

  /* Scale modal dialogs */
  .modal-card {
    width: 92% !important;
    max-height: 90vh;
    margin: 20px auto;
    overflow-y: auto;
    padding: 20px !important;
  }

  /* KPI grid gaps */
  .kpi-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }
}

@media (max-width: 480px) {
  .top-header h1 {
    font-size: 1.3rem !important;
  }
  
  .login-card {
    padding: 24px !important;
    width: 90% !important;
  }

  .sensor-badges {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .sensor-badge {
    justify-content: center;
  }
}


/* Toast Notification System */
#toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  background: rgba(255, 255, 255, 0.95);
  color: #0f172a;
  padding: 16px 24px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  font-size: 15px;
  font-weight: 500;
  opacity: 0;
  transform: translateY(20px);
  animation: slideInUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  display: flex;
  align-items: center;
  gap: 12px;
  border-left: 4px solid var(--accent-blue);
}
.toast.success { border-left-color: #10b981; }
.toast.error { border-left-color: #ef4444; }
.toast.fade-out {
  animation: slideOutDown 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes slideInUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideOutDown {
  to { opacity: 0; transform: translateY(20px); }
}


/* Header Notifications */
.header-notifications { display: flex; gap: 16px; align-items: center; border-right: 1px solid var(--border-color); padding-right: 16px; margin-right: 16px; }
.notif-icon { position: relative; cursor: pointer; color: var(--text-muted); transition: color 0.2s; }
.notif-icon:hover { color: var(--accent-purple); }
.notif-icon i { width: 20px; height: 20px; }
.notif-icon .badge { position: absolute; top: -6px; right: -8px; background: var(--accent-red); color: white; font-size: 10px; font-weight: bold; min-width: 16px; height: 16px; border-radius: 8px; display: flex; align-items: center; justify-content: center; padding: 0 4px; box-shadow: 0 0 0 2px var(--bg-secondary); }