:root {
  --bg-color: #12171D;
  --surface-color: #141920;
  --accent-color: #0060B2;
  --accent-glow: rgba(0, 96, 178, 0.4);
  --text-primary: #FFFFFF;
  --text-secondary: #9BA1A6;
  --glass-bg: rgba(20, 25, 32, 0.7);
  --glass-border: rgba(255, 255, 255, 0.05);
  --input-bg: rgba(255, 255, 255, 0.05);
  --sidebar-width: 240px;
  --sidebar-collapsed-width: 70px;
  --transition-speed: 0.3s;
}

body.theme-light {
  --bg-color: #F0F2F5;
  --surface-color: #E2E4E9;
  --accent-color: #0060B2;
  --accent-glow: rgba(0, 96, 178, 0.2);
  --text-primary: #1C1E20;
  --text-secondary: #5C6269;
  --glass-bg: rgba(226, 228, 233, 0.8);
  --glass-border: rgba(0, 0, 0, 0.1);
  --input-bg: #D1D5DB;
}

body.theme-forest {
  --bg-color: #0B100D;
  --surface-color: #0E1411;
  --accent-color: #10B981;
  --accent-glow: rgba(16, 185, 129, 0.4);
  --text-primary: #ECFDF5;
  --text-secondary: #6EE7B7;
  --glass-bg: rgba(14, 20, 17, 0.7);
  --glass-border: rgba(16, 185, 129, 0.1);
}

body.theme-ocean {
  --bg-color: #081018;
  --surface-color: #0B1621;
  --accent-color: #0EA5E9;
  --accent-glow: rgba(14, 165, 233, 0.4);
  --text-primary: #F0F9FF;
  --text-secondary: #7DD3FC;
  --glass-bg: rgba(11, 22, 33, 0.7);
  --glass-border: rgba(14, 165, 233, 0.1);
}

body.theme-modern {
  --bg-color: #16191D;
  --surface-color: #1C2229;
  --accent-color: #6366F1;
  --accent-glow: rgba(99, 102, 241, 0.4);
  --text-primary: #FFFFFF;
  --text-secondary: #94A3B8;
  --glass-bg: rgba(30, 41, 59, 0.5);
  --glass-border: rgba(99, 102, 241, 0.2);
}

body.theme-nexura {
  --bg-color: #06070A;
  --surface-color: #0B111A;
  /* Dark blue-black */
  --accent-color: #6CC1BD;
  --accent-glow: rgba(108, 193, 189, 0.4);
  --text-primary: #FFFFFF;
  --text-secondary: #9BA1A6;
  --glass-bg: rgba(23, 55, 137, 0.15);
  /* Deep Blue hint */
  --glass-border: rgba(108, 193, 189, 0.15);
  --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  --font-main: 'Outfit', sans-serif;
}

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

input[type="text"],
input[type="password"],
input[type="email"],
select {
  background: var(--input-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  padding: 0.6rem 1rem;
  border-radius: 8px;
  outline: none;
  font-family: inherit;
  font-size: 0.9rem;
  transition: all 0.2s;
}

select option {
  background: var(--surface-color);
  color: var(--text-primary);
}

input:focus,
select:focus {
  border-color: var(--accent-color);
  background: var(--input-bg);
  filter: brightness(1.1);
}

.filter-btn {
  height: auto;
  padding: 0.6rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 8px;
}

body {
  font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 400;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
}

.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar Styling */
/* Sidebar Styling (Floating Pill) */
.sidebar {
  width: var(--sidebar-width);
  background: rgba(11, 17, 26, 0.7);
  backdrop-filter: blur(25px) saturate(180%);
  -webkit-backdrop-filter: blur(25px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  transition: width 0.4s cubic-bezier(0.19, 1, 0.22, 1), transform 0.3s ease;
  position: fixed;
  top: 50%;
  left: 20px;
  transform: translateY(-50%);
  height: auto;
  min-height: fit-content;
  z-index: 1000;
  border-radius: 40px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

/* Main Navigation */
.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.85rem 1.25rem;
  border-radius: 40px;
  /* High radius for pill look */
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.nav-item:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  padding-left: 1.5rem;
}

.nav-item.active {
  color: #FFFFFF;
  background: linear-gradient(135deg, var(--accent-color), #2BB4B0);
  box-shadow: 0 4px 15px var(--accent-glow);
  border-right: none;
}

.nav-item.active .nav-icon {
  filter: brightness(0) invert(1);
}

.nav-icon {
  width: 24px;
  height: 24px;
}

.nav-text {
  font-size: 0.95rem;
  font-weight: 500;
  transition: opacity 0.2s;
}

.sidebar.collapsed .nav-item {
  justify-content: center;
  padding-left: 0;
  padding-right: 0;
}

.sidebar.collapsed .logo-container {
  justify-content: center;
}

.sidebar.collapsed .nav-text {
  display: none;
}

/* Main Content area */
.main-content {
  flex: 1;
  padding: 2rem 3rem;
  max-width: 1600px;
  margin: 0 auto;
  margin-left: calc(var(--sidebar-width) + 40px);
  transition: margin-left var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar.collapsed+.main-content,
.app-container:has(.sidebar.collapsed) .main-content {
  margin-left: calc(var(--sidebar-collapsed-width) + 40px);
}

@media (max-width: 1100px) {
  .main-content {
    margin-left: 0;
    padding: 1.5rem;
    padding-top: 5rem;
    /* Space for a top mobile bar if needed later */
  }
}

/* Glass Card */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 90px;
  transition: transform 0.2s, box-shadow 0.2s;
  grid-column: span 4;
  /* Standard width (4 * 40px = 160px) */
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Dashboard Container & 2-Column Layout */
.dashboard-container {
  display: grid;
  grid-template-columns: 1fr 330px;
  gap: 2.5rem;
  align-items: start;
}

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

.sidebar-right {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: sticky;
  top: 2rem;
}

/* Room Grid override for 2 columns */
#roomCardsGrid .card {
  grid-column: span 1 !important;
  min-height: auto;
}

/* Scrollable container for many rooms */
.rooms-scroll-container {
  max-height: 400px;
  overflow-y: auto;
  padding-right: 5px;
}

.rooms-scroll-container::-webkit-scrollbar {
  width: 4px;
}

.rooms-scroll-container::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.02);
}

.rooms-scroll-container::-webkit-scrollbar-thumb {
  background: var(--accent-color);
  border-radius: 4px;
}

/* KPI Cards Layout */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.kpi-card {
  grid-column: span 5;
  /* 200px (5 * 40px) */
  padding: 1.25rem;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.kpi-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}

.kpi-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
}

h1 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: linear-gradient(to bottom, #fff, #9BA1A6);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Device Card States */
.card.clickable {
  cursor: pointer;
}

.card.device-on {
  border-color: var(--accent-color);
  background: rgba(0, 96, 178, 0.05);
}

.card.device-on.light {
  box-shadow: 0 0 20px rgba(255, 214, 0, 0.15), inset 0 0 15px rgba(255, 214, 0, 0.05);
  border-color: rgba(255, 214, 0, 0.3);
}

.card.device-on.light i,
.card.device-on.light svg {
  color: #FFD600 !important;
  filter: drop-shadow(0 0 8px rgba(255, 214, 0, 0.6));
  animation: light-glow 2s infinite ease-in-out !important;
}

@keyframes light-glow {
  0% {
    transform: scale(1);
    opacity: 0.7;
  }

  50% {
    transform: scale(1.2);
    opacity: 1;
    filter: drop-shadow(0 0 12px rgba(255, 214, 0, 0.8));
  }

  100% {
    transform: scale(1);
    opacity: 0.7;
  }
}

.card.device-on.switch i {
  color: #10B981 !important;
}

/* Wide Dimmable Card */
.card.variant-dimmer {
  grid-column: span 5;
  /* 1.25x width (5 * 40px = 200px) */
  flex-direction: column;
  justify-content: flex-start;
  gap: 0.25rem;
}

.card.variant-dimmer .device-icon {
  margin-bottom: 0.2rem !important;
}

.card.variant-dimmer h3 {
  margin-bottom: 0 !important;
  font-size: 0.8rem;
  flex: none;
}

.card.variant-dimmer .state-text {
  display: block;
}

.card.variant-dimmer .dimmer-controls {
  margin-top: auto !important;
}

/* Responsiveness for variant-dimmer */
@media (max-width: 600px) {
  .card.variant-dimmer {
    grid-column: span 1;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .card.variant-dimmer h3 {
    flex: none;
  }

  .card.variant-dimmer .state-text {
    display: block;
  }
}

/* Toggle Switch Styling */
.toggle-switch {
  width: 40px;
  height: 20px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  position: relative;
  cursor: pointer;
  transition: background 0.3s;
}

.toggle-switch.active {
  background: var(--accent-color);
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: white;
  border-radius: 50%;
  transition: transform 0.3s;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch.active::after {
  transform: translateX(20px);
}

/* Modal Styling */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: var(--surface-color);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2rem;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.modal-content input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--input-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: inherit;
}

.modal-content input:focus {
  outline: none;
  border-color: var(--accent-color);
  background: var(--input-bg);
  filter: brightness(1.1);
}

/* UI Refinements */
.device-card h3,
.device-card span {
  white-space: normal !important;
  word-wrap: break-word;
  line-height: 1.25;
}

.device-card i,
.nav-icon {
  width: 24px !important;
  height: 24px !important;
}

.sensor-value {
  font-size: 1.25rem !important;
  font-weight: 700;
  color: var(--accent-color);
  margin-top: 0.25rem;
}

/* Donation & Support Section */
.donation-card {
  background: linear-gradient(135deg, rgba(255, 221, 0, 0.1) 0%, rgba(255, 129, 63, 0.1) 100%);
  border: 1px solid rgba(255, 221, 0, 0.3);
  padding: 1.5rem;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1rem;
}

.bmc-button {
  background-color: #FFDD00;
  color: #000000;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  width: fit-content;
}

.bmc-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 221, 0, 0.4);
}

.bmc-icon {
  width: 20px;
  height: 20px;
}

.donation-badge {
  background: rgba(255, 221, 0, 0.2);
  color: #FFDD00;
  padding: 0.25rem 0.6rem;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Responsive adjustments */
@media (max-width: 1100px) {
  .sidebar {
    transform: translateX(-150%);
    pointer-events: none;
  }

  .sidebar.mobile-active {
    transform: translateX(0);
    pointer-events: all;
  }

  .dashboard-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .sidebar-right {
    position: static;
    order: -1;
  }
}

@media (max-width: 768px) {
  .main-content {
    padding: 1.5rem;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
  }
}

/* Refresh Animation (Antoine Wodniack Style) */
.scrambling {
  opacity: 0.8;
  filter: blur(0.5px);
  color: var(--accent-color);
}

/* Dashboard Empty Block (Spacer) */
.card.empty-block {
  border: 1px dashed var(--glass-border) !important;
  background: rgba(255, 255, 255, 0.01) !important;
  transition: all 0.3s ease;
}

.card.empty-block:hover {
  border-color: var(--accent-color) !important;
  background: rgba(var(--accent-color-rgb), 0.05) !important;
  transform: translateY(-2px);
}

.card.empty-block i {
  transition: transform 0.3s ease;
}

.card.empty-block:hover i {
  transform: scale(1.1);
}

/* Modern Page Transitions (Simple & Elegant) */
body.navigating-out .app-container {
  animation: fadeOutSlide 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

body.navigating-in .app-container {
  animation: fadeInSlide 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards !important;
}

@keyframes fadeOutSlide {
  from {
    opacity: 1;
    transform: translateY(0);
  }

  to {
    opacity: 0;
    transform: translateY(-30px);
  }
}

@keyframes fadeInSlide {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Native View Transition API (Clean Cross-fade) */
::view-transition-old(root) {
  animation: 0.3s cubic-bezier(0.4, 0, 0.2, 1) both fadeOut;
}

::view-transition-new(root) {
  animation: 0.3s cubic-bezier(0.4, 0, 0.2, 1) both fadeIn;
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }

  to {
    opacity: 0;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}