/* ALMED AHU Control Dashboard - New Design */
/* Dark theme with purple accents */

@font-face {
  font-family: 'Vendura';
  src: url('../fonts/Vendura-SemiBold-Demo.otf') format('opentype');
  font-weight: 600;
  font-style: normal;
}

:root {
  /* Dark Theme Colors - Primary */
  --bg-primary: #0F1419;
  --bg-secondary: #1A1F2E;
  --bg-tertiary: #252B3D;
  --bg-card: #1E2538;
  
  /* Purple Accents */
  --purple-primary: #8B5CF6;
  --purple-secondary: #A78BFA;
  --purple-light: rgba(139, 92, 246, 0.1);
  --purple-dark: #6D28D9;
  
  /* Status Colors */
  --success: #10B981;
  --success-light: rgba(16, 185, 129, 0.1);
  --error: #EF4444;
  --error-light: rgba(239, 68, 68, 0.1);
  --warning: #F59E0B;
  --info: #3B82F6;
  --info-light: rgba(59, 130, 246, 0.1);
  
  /* Text Colors */
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-tertiary: #64748B;
  
  /* Borders */
  --border-color: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(139, 92, 246, 0.3);
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.2);
  
  /* Transitions */
  --transition: all 0.3s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Layout Structure */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  left: 0;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.sidebar-logo-text {
  font-family: 'Vendura', sans-serif;
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.sidebar-subtitle {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-left: 32px;
}

.sidebar-nav {
  flex: 1;
  padding: 20px 0;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border-left: 3px solid transparent;
}

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

.nav-item.active {
  background: var(--purple-light);
  color: var(--purple-primary);
  border-left-color: var(--purple-primary);
}

.nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: currentColor;
}

.nav-icon svg {
  width: 100%;
  height: 100%;
}

.nav-label {
  font-size: 14px;
  font-weight: 500;
}

.sidebar-footer {
  padding: 20px;
  border-top: 1px solid var(--border-color);
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--purple-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 16px;
}

.user-info {
  flex: 1;
}

.user-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.user-role {
  font-size: 12px;
  color: var(--text-tertiary);
}

.logout-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: var(--transition);
}

.logout-btn:hover {
  background: var(--bg-tertiary);
  color: var(--error);
}

/* Main Content Area */
.main-content {
  flex: 1;
  margin-left: 260px;
  min-height: 100vh;
  background: var(--bg-primary);
}

/* Top Header Bar */
.top-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
  gap: 8px;
  min-width: 300px;
}

.search-box input {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 14px;
  flex: 1;
  outline: none;
}

.search-box input::placeholder {
  color: var(--text-tertiary);
}

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

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
  font-size: 18px;
}

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

/* Content Container */
.content-container {
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.page-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* Summary Cards */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.summary-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  position: relative;
  transition: var(--transition);
}

.summary-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: currentColor;
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card-icon.devices {
  background: var(--info-light);
  color: var(--info);
}

.card-icon.online {
  background: var(--success-light);
  color: var(--success);
}

.card-icon.users {
  background: rgba(251, 146, 60, 0.1);
  color: #FB923C;
}

.card-icon.status {
  background: var(--error-light);
  color: var(--error);
}

.card-trend {
  font-size: 12px;
  font-weight: 600;
  color: var(--success);
  background: var(--success-light);
  padding: 4px 8px;
  border-radius: 6px;
}

.card-trend.live {
  background: var(--error-light);
  color: var(--error);
}

.card-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

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

/* Section Cards */
.section-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
}

.chart-section {
  margin-top: 32px;
}

.chart-section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 18px;
  box-shadow: 0 25px 45px rgba(15, 23, 42, 0.12);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chart-card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.chart-card-title {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  text-transform: uppercase;
  font-weight: 600;
}

.chart-card-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.chart-card-meta {
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.chart-card-body {
  height: 180px;
}

.chart-card-bar .chart-card-body {
  height: 210px;
}

.section-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-icon {
  font-size: 64px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-text {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.empty-subtext {
  font-size: 14px;
  color: var(--text-tertiary);
}

/* Quick Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
}

.stat-card.featured {
  background: linear-gradient(135deg, var(--purple-primary), var(--purple-dark));
  border-color: var(--purple-primary);
}

.stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  font-size: 20px;
}

.stat-card.featured .stat-icon {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.stat-card:not(.featured) .stat-icon {
  background: var(--success-light);
  color: var(--success);
}

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

.stat-card.featured .stat-value {
  color: white;
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.stat-card.featured .stat-label {
  color: rgba(255, 255, 255, 0.8);
}

/* Buttons */
.btn {
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--purple-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--purple-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

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

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

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--purple-primary);
  box-shadow: 0 0 0 3px var(--purple-light);
}

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  text-align: left;
  padding: 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 16px 12px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 14px;
}

.data-table tr:hover {
  background: var(--bg-tertiary);
}

/* Status Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.status-badge.online {
  background: var(--success-light);
  color: var(--success);
}

.status-badge.offline {
  background: var(--error-light);
  color: var(--error);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--purple-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .summary-grid {
    grid-template-columns: 1fr;
  }
}

/* Login Page Styles */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  padding: 20px;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 48px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}

.login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo-text {
  font-family: 'Vendura', sans-serif;
  font-size: 32px;
  font-weight: 600;
  color: var(--purple-primary);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.login-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
}

.login-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 32px;
}

.login-btn {
  width: 100%;
  padding: 14px;
  background: var(--purple-primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 8px;
}

.login-btn:hover {
  background: var(--purple-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.error-message {
  background: var(--error-light);
  color: var(--error);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 20px;
  display: none;
}

.error-message.show {
  display: block;
}