/* ===== WAGateway Design System ===== */
/* Premium Dark Theme with Glassmorphism */

:root {
  /* Color Palette */
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-tertiary: #1a2332;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(26, 35, 50, 0.85);
  --bg-glass: rgba(17, 24, 39, 0.5);

  --accent-primary: #25D366;
  --accent-secondary: #128C7E;
  --accent-tertiary: #075E54;
  --accent-glow: rgba(37, 211, 102, 0.15);
  --accent-gradient: linear-gradient(135deg, #25D366 0%, #128C7E 50%, #075E54 100%);

  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #25D366;

  --border-color: rgba(148, 163, 184, 0.1);
  --border-light: rgba(148, 163, 184, 0.05);

  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --success: #25D366;
  --success-bg: rgba(37, 211, 102, 0.1);
  --info: #3b82f6;
  --info-bg: rgba(59, 130, 246, 0.1);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --sidebar-width: 260px;
  --sidebar-collapsed: 70px;
  --topbar-height: 64px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(37, 211, 102, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 14px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(37, 211, 102, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(18, 140, 126, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
}

a { color: var(--accent-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ===== Glass Card ===== */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

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

.login-container {
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

.login-card {
  padding: 48px 40px;
  text-align: center;
  animation: fadeInUp 0.6s var(--transition-slow);
}

.login-logo {
  margin-bottom: 36px;
}

.logo-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-xl);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: white;
  box-shadow: var(--shadow-glow);
  animation: pulse-glow 3s ease-in-out infinite;
}

.login-logo h1 {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* ===== Form Elements ===== */
.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

input, select, textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 0.95rem;
  transition: var(--transition-fast);
  outline: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input::placeholder, textarea::placeholder {
  color: var(--text-muted);
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: var(--transition-fast);
}

.btn:hover::after { opacity: 1; }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}
.btn-primary:hover { box-shadow: 0 6px 25px rgba(37, 211, 102, 0.4); transform: translateY(-1px); }

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

.btn-danger {
  background: var(--danger);
  color: white;
}
.btn-danger:hover { background: #dc2626; }

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-full { width: 100%; }

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

.sidebar-header {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
  min-height: 65px;
}

.logo-icon-sm {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.sidebar-title {
  font-size: 1.15rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-family);
}

.nav-item:hover {
  background: var(--accent-glow);
  color: var(--text-primary);
  text-decoration: none;
}

.nav-item.active {
  background: var(--accent-glow);
  color: var(--accent-primary);
  font-weight: 600;
}

.nav-item.active svg { stroke: var(--accent-primary); }

.nav-item svg {
  flex-shrink: 0;
  stroke: var(--text-secondary);
  transition: var(--transition-fast);
}

.nav-item:hover svg { stroke: var(--text-primary); }

.sidebar-footer {
  padding: 10px;
  border-top: 1px solid var(--border-color);
}

.logout-btn:hover { color: var(--danger) !important; }
.logout-btn:hover svg { stroke: var(--danger) !important; }

/* Sidebar Backdrop for Mobile Drawer */
.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 95;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  pointer-events: none;
}

.sidebar-backdrop.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* ===== Main Content ===== */
#main-layout {
  display: flex;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  transition: var(--transition-slow);
}

.top-bar {
  height: var(--topbar-height);
  padding: 0 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--border-color);
  background: rgba(10, 14, 23, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.top-bar h2 {
  font-size: 1.2rem;
  font-weight: 700;
  flex: 1;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 4px;
}

.admin-badge {
  padding: 6px 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.content-area {
  padding: 28px;
  min-height: calc(100vh - var(--topbar-height));
}

/* ===== Stat Cards ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.stat-card.warning::before { background: linear-gradient(90deg, #f59e0b, #d97706); }
.stat-card.danger::before { background: linear-gradient(90deg, #ef4444, #dc2626); }
.stat-card.info::before { background: linear-gradient(90deg, #3b82f6, #2563eb); }

.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.2;
}

.stat-value.warning-text {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  -webkit-background-clip: text;
  background-clip: text;
}

.stat-value.danger-text {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  -webkit-background-clip: text;
  background-clip: text;
}

.stat-value.info-text {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  -webkit-background-clip: text;
  background-clip: text;
}

.stat-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ===== Section Headers ===== */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 700;
}

/* ===== Tables ===== */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  background: var(--bg-tertiary);
  padding: 12px 16px;
  text-align: left;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.9rem;
  vertical-align: middle;
}

tbody tr {
  transition: var(--transition-fast);
}

tbody tr:hover {
  background: var(--accent-glow);
}

/* ===== Badges ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-muted { background: rgba(100,116,139,0.15); color: var(--text-muted); }

.badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ===== Response Time Badges ===== */
.rt-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.rt-badge.fast { 
  background: rgba(37, 211, 102, 0.12); 
  color: #25D366; 
  border: 1px solid rgba(37, 211, 102, 0.25); 
}
.rt-badge.medium { 
  background: rgba(249, 115, 22, 0.12); 
  color: #f97316; 
  border: 1px solid rgba(249, 115, 22, 0.25); 
}
.rt-badge.slow { 
  background: rgba(239, 68, 68, 0.12); 
  color: #ef4444; 
  border: 1px solid rgba(239, 68, 68, 0.25); 
}
.rt-badge.pending { 
  background: rgba(59, 130, 246, 0.1); 
  color: var(--info); 
  border: 1px solid rgba(59, 130, 246, 0.2);
  animation: pulse-badge 2s ease-in-out infinite; 
}
.rt-badge.pending.medium {
  background: rgba(249, 115, 22, 0.12);
  color: #f97316;
  border: 1px solid rgba(249, 115, 22, 0.25);
}
.rt-badge.pending.slow {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

/* ===== Charts ===== */
.chart-container {
  position: relative;
  width: 100%;
  padding: 20px;
}

.chart-canvas {
  width: 100%;
  height: 250px;
}

/* ===== Heatmap ===== */
.heatmap-grid {
  display: grid;
  grid-template-columns: auto repeat(24, 1fr);
  gap: 3px;
  font-size: 0.7rem;
}

.heatmap-cell {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
  cursor: default;
  min-width: 20px;
}

.heatmap-cell:hover {
  transform: scale(1.3);
  z-index: 2;
}

.heatmap-label {
  display: flex;
  align-items: center;
  padding-right: 8px;
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.heatmap-hour {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.7rem;
  padding-bottom: 4px;
}

/* ===== QR Code ===== */
.qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 30px;
  gap: 16px;
}

.qr-container img, .qr-container canvas {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  background: white;
  padding: 16px;
}

.qr-status {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ===== Modals ===== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

.modal {
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  animation: slideUp 0.3s var(--transition-slow);
}

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

.modal-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close:hover {
  background: var(--danger-bg);
  color: var(--danger);
}

.modal-body {
  padding: 24px;
}

/* ===== Toast Notifications ===== */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.9rem;
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.3s var(--transition-slow);
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 400px;
  backdrop-filter: blur(10px);
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.warning { border-left: 3px solid var(--warning); }
.toast.info { border-left: 3px solid var(--info); }

.toast-exit {
  animation: slideOutRight 0.3s ease forwards;
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state svg {
  margin-bottom: 16px;
  opacity: 0.3;
}

.empty-state h3 {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* ===== Pagination ===== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}

.pagination button {
  padding: 6px 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-family);
}

.pagination button:hover { background: var(--accent-glow); color: var(--accent-primary); }
.pagination button.active { background: var(--accent-primary); color: white; border-color: var(--accent-primary); }
.pagination button:disabled { opacity: 0.3; cursor: not-allowed; }

/* ===== Filter Bar ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
  align-items: center;
}

.filter-bar input, .filter-bar select {
  width: auto;
  min-width: 160px;
  padding: 8px 14px;
  font-size: 0.85rem;
}

/* ===== Code Block (API Docs) ===== */
.code-block {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin: 12px 0;
}

.code-block .keyword { color: #c792ea; }
.code-block .string { color: #c3e88d; }
.code-block .url { color: #82aaff; }
.code-block .comment { color: #546e7a; }

/* ===== Device Card ===== */
.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.device-card {
  padding: 24px;
  transition: var(--transition-normal);
}

.device-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.device-name {
  font-size: 1.05rem;
  font-weight: 700;
}

.device-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

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

.device-info-row .label { color: var(--text-muted); }
.device-info-row .value { color: var(--text-primary); font-weight: 500; }

.device-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ===== Token Display ===== */
.token-display {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin: 12px 0;
}

.token-display code {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== Animations ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(100px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideOutRight {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100px); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(37, 211, 102, 0.2); }
  50% { box-shadow: 0 0 40px rgba(37, 211, 102, 0.4); }
}

@keyframes pulse-badge {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

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

.page-enter {
  animation: fadeInUp 0.4s var(--transition-slow);
}

/* ===== Loading Spinner ===== */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top: 2px solid var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

/* ===== Tabs ===== */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  background: var(--bg-tertiary);
  padding: 4px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
}

.tab {
  padding: 8px 20px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
  border: none;
  background: none;
  font-family: var(--font-family);
}

.tab:hover { color: var(--text-primary); }
.tab.active { background: var(--accent-glow); color: var(--accent-primary); font-weight: 600; }

/* Layout & Grid Helpers */
.charts-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.settings-layout-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  align-items: start;
}

.mode-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-row-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.lead-details-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
}

.heatmap-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px;
}

.apidocs-container {
  padding: 32px;
  max-width: 1100px;
  margin: 0 auto;
}

.media-examples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

/* ===== Homely AI Filter & Controls Bar ===== */
.homely-filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: nowrap;
  width: 100%;
}

.homely-category-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: nowrap;
  flex-shrink: 0;
}

.homely-category-tabs .btn-category-tab {
  height: 34px;
  padding: 0 12px;
  font-size: 12px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  box-sizing: border-box;
  flex-shrink: 0;
}

.homely-controls-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
  flex-shrink: 0;
}

.homely-search-wrap {
  position: relative;
  width: 180px;
  flex-shrink: 0;
}

.homely-search-wrap input {
  width: 100%;
  height: 34px;
  padding: 0 10px 0 30px;
  font-size: 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  box-sizing: border-box;
  outline: none;
}

.homely-search-wrap input:focus {
  border-color: #8b5cf6;
}

.homely-search-wrap svg {
  position: absolute;
  left: 9px;
  top: 10px;
  color: var(--text-muted);
  pointer-events: none;
}

.homely-filter-select {
  height: 34px;
  padding: 0 10px;
  font-size: 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  cursor: pointer;
  box-sizing: border-box;
  outline: none;
  flex-shrink: 0;
}

.homely-filter-select:focus {
  border-color: #8b5cf6;
}

#homely-device-filter {
  width: 155px;
  max-width: 165px;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}

#select-sort-lead {
  width: 135px;
}

/* ===== Responsive Breakpoints ===== */

/* Tablets & Small Desktops (< 1100px) */
@media (max-width: 1100px) {
  .homely-filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .homely-category-tabs {
    overflow-x: auto;
    padding-bottom: 2px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .homely-category-tabs::-webkit-scrollbar {
    display: none;
  }
  .homely-controls-bar {
    width: 100%;
    display: flex;
    gap: 8px;
    flex-wrap: nowrap;
  }
  .homely-search-wrap {
    flex: 1 1 38%;
    width: auto;
    min-width: 120px;
  }
  #homely-device-filter {
    flex: 1 1 32%;
    width: auto;
    max-width: none;
    min-width: 110px;
  }
  #select-sort-lead {
    flex: 1 1 30%;
    width: auto;
    min-width: 110px;
  }
}

/* Tablets & Small Desktops (< 992px) */
@media (max-width: 992px) {
  .settings-layout-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .charts-two-col {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* Mobile Devices (< 768px) */
@media (max-width: 768px) {
  /* Sidebar Off-Canvas */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    height: 100vh;
    height: 100dvh;
    width: min(280px, 82vw);
    transform: translateX(-100%);
    box-shadow: none;
    z-index: 100;
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 10px 0 35px rgba(0, 0, 0, 0.75);
  }

  .main-content {
    margin-left: 0;
    width: 100%;
    min-width: 0;
    overflow-x: hidden;
  }

  /* Top Bar */
  .top-bar {
    height: 56px;
    padding: 0 14px;
    gap: 12px;
  }

  .top-bar h2 {
    font-size: 1.05rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
  }

  .hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
  }

  .admin-badge {
    padding: 4px 10px;
    font-size: 0.72rem;
  }

  /* Content Area */
  .content-area {
    padding: 14px 12px;
    min-height: calc(100vh - 56px);
  }

  /* Section Header */
  .section-header {
    margin-bottom: 14px;
    gap: 10px;
  }

  .section-header .btn {
    width: 100%;
    justify-content: center;
  }

  /* Stats Grid */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 18px;
  }

  .stat-card {
    padding: 14px 12px;
  }

  .stat-label {
    font-size: 0.72rem;
    margin-bottom: 4px;
  }

  .stat-value {
    font-size: 1.45rem;
  }

  .stat-sub {
    font-size: 0.72rem;
    margin-top: 4px;
  }

  /* Device Cards & Action Grid */
  .device-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .device-card {
    padding: 16px 14px;
  }

  .device-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .device-actions .btn {
    flex: 1 1 calc(50% - 6px);
    min-height: 36px;
    padding: 8px 10px;
    font-size: 0.8rem;
    justify-content: center;
  }

  /* Token Display */
  .token-display {
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 10px;
  }

  .token-display code {
    width: 100%;
    font-size: 0.75rem;
  }

  .token-display .copy-token {
    width: 100%;
  }

  /* Charts */
  .charts-two-col {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .chart-container {
    padding: 14px 12px;
  }

  .chart-canvas {
    height: 210px;
  }

  /* Heatmap */
  .heatmap-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
  }

  .heatmap-grid {
    min-width: 620px;
  }

  /* Tables & Horizontal Touch Scrolling */
  .table-wrapper {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-sm);
  }

  .table-wrapper table {
    min-width: 650px;
  }

  thead th, tbody td {
    padding: 10px 12px;
    font-size: 0.82rem;
  }

  /* Filter Bar Mobile */
  .filter-bar {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 10px !important;
  }

  .filter-bar input,
  .filter-bar select,
  .filter-bar .form-input {
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .filter-bar > div {
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;
  }

  /* Homely AI Controls Bar Mobile */
  .homely-filter-bar {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 10px !important;
  }

  .homely-category-tabs {
    overflow-x: auto !important;
    flex-wrap: nowrap !important;
    padding-bottom: 4px !important;
    -webkit-overflow-scrolling: touch !important;
  }

  .homely-controls-bar {
    width: 100% !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 8px !important;
  }

  .homely-search-wrap,
  .homely-controls-bar .homely-filter-select,
  #homely-device-filter,
  #select-sort-lead {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    flex: none !important;
  }

  /* Forms & Grids in Settings */
  .form-row-2col,
  .mode-cards-grid,
  .lead-details-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  .day-checkbox-label {
    flex: 1 1 calc(33.333% - 6px);
    justify-content: center;
  }

  /* Modals */
  .modal-backdrop {
    padding: 12px;
    align-items: center;
  }

  .modal {
    width: 100%;
    max-width: 100%;
    max-height: 90vh;
    max-height: 90dvh;
    margin: 0;
    border-radius: var(--radius-md);
  }

  .modal-header {
    padding: 14px 16px;
  }

  .modal-body {
    padding: 16px 14px;
  }

  /* Tabs & Horizontal Swipe */
  .tabs,
  #lead-category-tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    padding-bottom: 6px;
  }

  /* API Docs Container */
  .apidocs-container {
    padding: 16px 12px;
  }

  .code-block {
    padding: 14px;
    font-size: 0.78rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Login Card */
  .login-container {
    padding: 12px;
    max-width: 95vw;
  }

  .login-card {
    padding: 32px 20px;
  }

  /* Buttons */
  .btn {
    min-height: 38px;
  }
}

/* Very Small Mobile (< 480px) */
@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .top-bar h2 {
    font-size: 0.95rem;
    max-width: 50vw;
  }

  .admin-badge {
    display: none;
  }

  .device-actions .btn {
    flex: 1 1 100%;
  }

  .day-checkbox-label {
    flex: 1 1 calc(50% - 6px);
  }
}

/* ===== Utility ===== */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-20 { gap: 20px; }
.mb-8 { margin-bottom: 8px; }
.mb-12 { margin-bottom: 12px; }
.mb-16 { margin-bottom: 16px; }
.mb-20 { margin-bottom: 20px; }
.mb-24 { margin-bottom: 24px; }
.mt-12 { margin-top: 12px; }
.mt-20 { margin-top: 20px; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }
.font-mono { font-family: var(--font-mono); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.w-full { width: 100%; }