/* ===== CSS Variables ===== */
:root {
  --primary:       #0284c7;
  --primary-dark:  #0369a1;
  --primary-light: #38bdf8;
  --bg:            #f1f5f9;
  --card-bg:       #ffffff;
  --text:          #0f172a;
  --text-secondary:#64748b;
  --text-muted:    #94a3b8;
  --border:        #e2e8f0;
  --sidebar-bg:    #0f172a;
  --sidebar-text:  #94a3b8;
  --green:         #16a34a;
  --yellow:        #d97706;
  --orange:        #ea580c;
  --red:           #dc2626;
  --shadow:        0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.05);
  --shadow-hover:  0 4px 12px rgba(0,0,0,0.08), 0 12px 36px rgba(0,0,0,0.07);
  --radius:        16px;
  --sidebar-width: 248px;
}

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

body {
  font-family: 'Prompt', sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
}

/* ===================================================
   SIDEBAR
=================================================== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 100;
  transition: transform 0.3s ease;
}

/* Logo area */
.sidebar-header {
  padding: 24px 16px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

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

.logo-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(2,132,199,0.45);
}

.logo-icon i { font-size: 18px; color: #fff; }

.logo-text { line-height: 1.35; }

.logo-text .title {
  font-size: 13px; font-weight: 700;
  color: #fff; letter-spacing: 0.3px;
}

.logo-text .subtitle {
  font-size: 10px; color: var(--text-muted);
  letter-spacing: 0.8px; text-transform: uppercase;
}

/* Nav */
.nav-menu {
  list-style: none;
  padding: 14px 10px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 14px;
  border-radius: 10px;
  margin-bottom: 3px;
  color: var(--sidebar-text);
}

.nav-item:hover {
  background: rgba(255,255,255,0.06);
  color: #e2e8f0;
}

.nav-item.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  box-shadow: 0 4px 14px rgba(2,132,199,0.4);
}

.nav-item i { width: 20px; text-align: center; font-size: 15px; }

/* Footer */
.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.connection-status {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px;
  background: rgba(255,255,255,0.04);
  padding: 8px 12px; border-radius: 8px;
}

.connection-status i { font-size: 8px; color: var(--red); }
.connection-status.connected i { color: var(--green); }

/* Nav badge */
.nav-badge {
  background: var(--red); color: #fff;
  font-size: 10px; font-weight: 700;
  padding: 2px 7px; border-radius: 10px;
  margin-left: auto;
}

/* ===================================================
   MOBILE HEADER
=================================================== */
.mobile-header {
  display: none;
  position: fixed; top: 0; left: 0; right: 0;
  height: 56px;
  background: var(--sidebar-bg);
  color: #fff;
  align-items: center;
  padding: 0 16px; z-index: 99; gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.mobile-header h1 { font-size: 15px; font-weight: 500; flex: 1; }

.menu-btn {
  background: none; border: none;
  color: #fff; font-size: 20px;
  cursor: pointer; padding: 8px;
}

.connection-dot {
  width: 10px; height: 10px;
  border-radius: 50%; background: var(--red);
}
.connection-dot.connected { background: var(--green); }

/* ===================================================
   MAIN CONTENT
=================================================== */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 28px 32px;
  min-height: 100vh;
}

/* ===================================================
   PAGES
=================================================== */
.page { display: none; }

.page.active {
  display: block;
  animation: fadeIn 0.25s ease;
}

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

/* Page Header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-tag {
  display: inline-block;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 10px; font-weight: 700;
  padding: 3px 10px; border-radius: 20px;
  letter-spacing: 1.2px; text-transform: uppercase;
  margin-bottom: 6px;
}

.page-header h2 {
  font-size: 24px; font-weight: 700;
  display: flex; align-items: center; gap: 10px;
  color: var(--text); line-height: 1;
}

.page-header h2 i { color: var(--primary); }

.last-update {
  font-size: 12px; color: var(--text-secondary);
  background: var(--card-bg);
  padding: 8px 14px; border-radius: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.device-selector {
  font-family: var(--font);
  font-size: 13px;
  padding: 7px 32px 7px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  box-shadow: var(--shadow);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  min-width: 160px;
}
.device-selector:focus { outline: none; border-color: var(--primary); }

/* ===================================================
   DEVICE CARDS GRID
=================================================== */
.device-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.device-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  border-top: 4px solid #9ca3af;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  position: relative;
}
.device-card:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,.12); }
.device-card.color-green  { border-top-color: #4caf50; }
.device-card.color-yellow { border-top-color: #ffeb3b; }
.device-card.color-orange { border-top-color: #ff9800; }
.device-card.color-red    { border-top-color: #f44336; }
.device-card.offline      { border-top-color: #6b7280; opacity: .75; }

.device-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
}
.device-card-name {
  font-size: 13px; font-weight: 700;
  color: var(--text);
  word-break: break-all;
}
.device-card-badge {
  font-size: 10px; font-weight: 700;
  padding: 2px 7px; border-radius: 10px;
  white-space: nowrap; margin-left: 6px;
}
.device-card-badge.badge-ok     { background: #dcfce7; color: #15803d; }
.device-card-badge.badge-warn   { background: #fef9c3; color: #854d0e; }
.device-card-badge.badge-risk   { background: #ffedd5; color: #9a3412; }
.device-card-badge.badge-danger { background: #fee2e2; color: #991b1b; }
.device-card-badge.badge-ticket { background: #fee2e2; color: #991b1b; }
.device-card-badge.badge-offline{ background: #f3f4f6; color: #6b7280; }

.device-card-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 10px;
}
.device-card-val {
  font-size: 11px; color: var(--text-secondary);
}
.device-card-val strong {
  display: block;
  font-size: 18px; font-weight: 700;
  color: var(--text); line-height: 1.1;
}
.device-card-val small { font-size: 10px; }

.device-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px; color: var(--text-secondary);
  border-top: 1px solid var(--border);
  padding-top: 8px;
  margin-top: 4px;
}
.device-card-footer .ticket-dot {
  display: inline-flex; align-items: center; gap: 4px;
  color: #dc2626; font-weight: 600;
}

@media (max-width: 480px) {
  .device-cards-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .device-card { padding: 12px; }
  .device-card-val strong { font-size: 15px; }
}

/* ===================================================
   CARDS
=================================================== */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  border: 1px solid var(--border);
}

.card h3 {
  font-size: 15px; font-weight: 600;
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
  color: var(--text);
}

.card h3 i { color: var(--primary); }

/* ===================================================
   STATUS CARDS (Top KPI row)
=================================================== */
.status-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.status-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 20px 20px;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  border-radius: var(--radius);
  background: var(--card-bg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  cursor: default;
}

/* Subtle decorative circle top-right */
.status-card::after {
  content: '';
  position: absolute;
  top: -20px; right: -20px;
  width: 80px; height: 80px;
  border-radius: 50%;
  background: rgba(2,132,199,0.05);
  pointer-events: none;
}

.status-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.card-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  background: rgba(2,132,199,0.1);
  color: var(--primary);
  flex-shrink: 0;
  transition: all 0.3s;
}

.card-info { flex: 1; min-width: 0; }

.card-info label {
  font-size: 11px; color: var(--text-muted);
  font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.8px; display: block;
}

.card-value {
  font-size: 38px; font-weight: 800;
  line-height: 1.1; margin: 5px 0 4px;
  letter-spacing: -1.5px;
}

.card-value small {
  font-size: 15px; font-weight: 400;
  color: var(--text-secondary); letter-spacing: 0;
}

.card-status {
  font-size: 12px; font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* Bottom color bar */
.card-indicator {
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--border);
  transition: background 0.4s;
}

.card-indicator.green  { background: linear-gradient(90deg, var(--green), #4ade80); }
.card-indicator.yellow { background: linear-gradient(90deg, var(--yellow), #fbbf24); }
.card-indicator.orange { background: linear-gradient(90deg, var(--orange), #fb923c); }
.card-indicator.red    { background: linear-gradient(90deg, var(--red),   #f87171); }
.card-indicator.dew    { background: linear-gradient(90deg, var(--primary), var(--primary-light)); }
.card-indicator.readings { background: linear-gradient(90deg, #7c3aed, #a78bfa); }

/* ===================================================
   GAUGE SECTION
=================================================== */
.gauge-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.gauge-container {
  position: relative;
  width: 100%; max-width: 260px;
  margin: 0 auto;
}

.gauge-label {
  position: absolute;
  bottom: 26px; left: 50%;
  transform: translateX(-50%);
  font-size: 30px; font-weight: 800;
  text-align: center; letter-spacing: -1px;
  white-space: nowrap;
}

.gauge-legend {
  display: flex; flex-wrap: wrap;
  gap: 6px 14px; justify-content: center;
  margin-top: 14px;
  background: var(--bg);
  border-radius: 10px; padding: 10px 12px;
}

.legend-item {
  font-size: 11px; color: var(--text-secondary);
  display: flex; align-items: center; gap: 5px;
}

.legend-item i { font-size: 8px; }

/* ===================================================
   STATS SECTION
=================================================== */
.stats-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.stat-item {
  text-align: center;
  padding: 18px 12px;
  background: var(--bg);
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.stat-item label {
  font-size: 11px; color: var(--text-muted);
  display: block; margin-bottom: 8px;
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
}

.stat-val { font-size: 26px; font-weight: 800; }

.text-danger  { color: var(--red); }
.text-success { color: var(--green); }
.text-center  { text-align: center; }

/* ===================================================
   ALERT LOG
=================================================== */
.alert-log { max-height: 280px; overflow-y: auto; }

.alert-empty {
  text-align: center; color: var(--text-muted);
  padding: 40px 20px; font-size: 14px;
}

.alert-item {
  display: flex; align-items: flex-start;
  gap: 12px; padding: 11px 0;
  border-bottom: 1px solid var(--border);
  animation: fadeIn 0.3s;
}

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

.alert-item .alert-icon {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; flex-shrink: 0;
}

.alert-icon.warning  { background: rgba(217,119,6,0.12);  color: var(--yellow); }
.alert-icon.danger   { background: rgba(220,38,38,0.12);  color: var(--red); }
.alert-icon.critical { background: rgba(220,38,38,0.2);   color: var(--red); }

.alert-item .alert-text .alert-title { font-weight: 600; font-size: 13px; }
.alert-item .alert-text .alert-time  { font-size: 11px; color: var(--text-muted); }

/* ===================================================
   CHART PAGE
=================================================== */
.chart-controls { display: flex; gap: 6px; }
.chart-card { margin-bottom: 20px; }
.chart-wrapper { position: relative; height: 300px; }

/* ===================================================
   HISTORY TABLE
=================================================== */
.table-wrapper {
  overflow-x: auto;
  border-radius: 12px; overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: rgba(255,255,255,0.85);
  padding: 14px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  white-space: nowrap;
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(2,132,199,0.04); }

.status-badge {
  display: inline-block;
  padding: 4px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600;
  white-space: nowrap;
}

.status-badge.green  { background: rgba(22,163,74,0.1);  color: #15803d; }
.status-badge.yellow { background: rgba(217,119,6,0.1);  color: #b45309; }
.status-badge.orange { background: rgba(234,88,12,0.1);  color: #c2410c; }
.status-badge.red    { background: rgba(220,38,38,0.1);  color: #b91c1c; }

.table-footer {
  display: flex; justify-content: space-between;
  align-items: center; margin-top: 16px;
  font-size: 13px; color: var(--text-secondary);
}

.pagination { display: flex; gap: 4px; }

.pagination button {
  padding: 6px 12px; border: 1px solid var(--border);
  background: #fff; border-radius: 8px;
  cursor: pointer; font-size: 12px;
  font-family: 'Prompt', sans-serif;
  transition: all 0.2s;
}

.pagination button:hover { background: var(--bg); }

.pagination button.active {
  background: var(--primary); color: #fff;
  border-color: var(--primary);
}

/* ===================================================
   SETTINGS PAGE
=================================================== */
.settings-card { margin-bottom: 20px; }

.settings-desc {
  font-size: 13px; color: var(--text-secondary);
  margin-bottom: 20px; line-height: 1.65;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.setting-item {
  padding: 18px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--border);
  transition: box-shadow 0.2s, transform 0.2s;
}

.setting-item:hover { box-shadow: var(--shadow); transform: translateY(-1px); }

.setting-item.green  { border-left-color: var(--green); }
.setting-item.yellow { border-left-color: var(--yellow); }
.setting-item.orange { border-left-color: var(--orange); }
.setting-item.red    { border-left-color: var(--red); }

.setting-header {
  display: flex; align-items: center;
  gap: 8px; margin-bottom: 10px;
}

.setting-header label { font-weight: 600; font-size: 14px; }

.status-dot {
  width: 10px; height: 10px;
  border-radius: 50%; display: inline-block;
}

.status-dot.green  { background: var(--green); }
.status-dot.yellow { background: var(--yellow); }
.status-dot.orange { background: var(--orange); }
.status-dot.red    { background: var(--red); }

.setting-input {
  display: flex; align-items: center;
  gap: 8px; margin-bottom: 8px;
}

.setting-input input {
  width: 100px; padding: 8px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px; font-size: 16px;
  font-family: 'Prompt', sans-serif;
  font-weight: 700; text-align: center;
  background: #fff; transition: border-color 0.2s;
}

.setting-input input:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(2,132,199,0.1);
}

.setting-input span { font-weight: 500; color: var(--text-secondary); }

.setting-input.disabled {
  opacity: 0.6; font-style: italic;
  font-size: 13px; color: var(--text-secondary);
}

.setting-item small {
  font-size: 11px; color: var(--text-muted);
  line-height: 1.55; display: block;
}

/* Toggle */
.toggle-switch { position: relative; }
.toggle-switch input { display: none; }

.toggle-label {
  display: block; width: 48px; height: 26px;
  background: #cbd5e1; border-radius: 13px;
  cursor: pointer; position: relative; transition: background 0.3s;
}

.toggle-label::after {
  content: ''; position: absolute;
  top: 3px; left: 3px;
  width: 20px; height: 20px;
  background: #fff; border-radius: 50%;
  transition: transform 0.3s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.toggle-switch input:checked + .toggle-label { background: var(--green); }
.toggle-switch input:checked + .toggle-label::after { transform: translateX(22px); }

.settings-actions {
  display: flex; gap: 12px;
  flex-wrap: wrap; margin-top: 8px; margin-bottom: 40px;
}

/* ===================================================
   BUTTONS
=================================================== */
.btn {
  padding: 10px 20px; border: none;
  border-radius: 10px;
  font-family: 'Prompt', sans-serif;
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all 0.2s;
  letter-spacing: 0.1px;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  box-shadow: 0 2px 8px rgba(2,132,199,0.35);
}
.btn-primary:hover { box-shadow: 0 4px 16px rgba(2,132,199,0.5); }

.btn-success {
  background: linear-gradient(135deg, #16a34a, #22c55e);
  color: #fff;
  box-shadow: 0 2px 8px rgba(22,163,74,0.3);
}
.btn-success:hover { box-shadow: 0 4px 14px rgba(22,163,74,0.45); }

.btn-danger {
  background: linear-gradient(135deg, var(--red), #ef4444);
  color: #fff;
  box-shadow: 0 2px 8px rgba(220,38,38,0.3);
}
.btn-danger:hover { box-shadow: 0 4px 14px rgba(220,38,38,0.45); }

.btn-secondary { background: #64748b; color: #fff; }

.btn-lg { padding: 13px 28px; font-size: 15px; }

.btn-sm {
  padding: 6px 14px; font-size: 12px;
  background: var(--card-bg); color: var(--text-secondary);
  border: 1px solid var(--border); border-radius: 8px;
  box-shadow: none; font-weight: 500;
}

.btn-sm:hover { background: var(--bg); }

.btn-sm.active {
  background: var(--primary); color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 6px rgba(2,132,199,0.3);
}

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

.toast {
  background: var(--card-bg);
  border-radius: 12px; padding: 14px 18px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  display: flex; align-items: center; gap: 12px;
  min-width: 300px;
  animation: slideIn 0.3s ease;
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
}

.toast.success { border-left-color: var(--green); }
.toast.warning { border-left-color: var(--yellow); }
.toast.error   { border-left-color: var(--red); }

@keyframes slideIn {
  from { transform: translateX(120%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

.toast i { font-size: 18px; }
.toast.success i { color: var(--green); }
.toast.warning i { color: var(--yellow); }
.toast.error   i { color: var(--red); }

/* ===================================================
   RESPONSIVE
=================================================== */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .mobile-header { display: flex; }
  .main-content { margin-left: 0; padding: 68px 16px 24px; }
  .status-cards { grid-template-columns: 1fr 1fr; }
  .gauge-section { grid-template-columns: 1fr; }
  .stats-section { grid-template-columns: 1fr; }
  .card-value { font-size: 28px; }
  .settings-grid { grid-template-columns: 1fr; }
  .chart-controls { flex-wrap: wrap; }
}

@media (max-width: 480px) {
  .status-cards { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; align-items: flex-start; }
  .main-content { padding: 68px 12px 24px; }
}

/* ===== Overlay ===== */
.sidebar-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.5); z-index: 99;
}
.sidebar-overlay.active { display: block; }

/* ===================================================
   DEMO BANNER
=================================================== */
.demo-banner {
  position: fixed; bottom: 20px; right: 20px;
  z-index: 200;
  background: linear-gradient(135deg, #4f46e5, #7c3aed);
  color: #fff;
  padding: 8px 16px; border-radius: 24px;
  display: flex; align-items: center; gap: 10px;
  box-shadow: 0 4px 20px rgba(79,70,229,0.4);
  font-size: 12px; white-space: nowrap;
}

.demo-banner-content { display: flex; align-items: center; gap: 7px; }
.demo-banner-content > i { font-size: 12px; animation: pulse 2s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.demo-controls { display: flex; gap: 6px; }

.demo-btn {
  background: rgba(255,255,255,0.18) !important;
  color: #fff !important;
  border-color: rgba(255,255,255,0.3) !important;
  font-size: 11px !important;
  padding: 3px 10px !important;
  border-radius: 16px !important;
}

.demo-btn:hover { background: rgba(255,255,255,0.3) !important; }

.status-card.demo-update { animation: cardPulse 0.6s ease; }

@keyframes cardPulse {
  0%   { box-shadow: var(--shadow); }
  50%  { box-shadow: 0 0 0 6px rgba(2,132,199,0.12), var(--shadow-hover); }
  100% { box-shadow: var(--shadow); }
}

@media (max-width: 768px) {
  .demo-banner { bottom: 12px; right: 12px; padding: 6px 12px; font-size: 11px; }
}

/* ===================================================
   TICKET BANNER
=================================================== */
.ticket-banner {
  display: flex; align-items: flex-start;
  justify-content: space-between; gap: 16px;
  background: #fff;
  border: 1px solid rgba(220,38,38,0.2);
  border-left: 5px solid var(--red);
  border-radius: var(--radius);
  padding: 20px 24px; margin-top: 20px;
  box-shadow: 0 4px 24px rgba(220,38,38,0.1);
  animation: ticketPulse 2.5s ease-in-out infinite;
}

@keyframes ticketPulse {
  0%, 100% { box-shadow: 0 4px 24px rgba(220,38,38,0.1); }
  50%       { box-shadow: 0 4px 24px rgba(220,38,38,0.25); }
}

.ticket-banner-left {
  display: flex; align-items: flex-start;
  gap: 14px; flex: 1;
}

.ticket-banner-left > .fa-ticket-alt {
  font-size: 26px; color: var(--red);
  margin-top: 2px; flex-shrink: 0;
}

.ticket-title {
  font-size: 15px; font-weight: 700;
  color: #991b1b; margin-bottom: 4px;
}

.ticket-meta {
  font-size: 12px; color: var(--text-secondary); margin-bottom: 8px;
}

.ticket-msg {
  font-size: 12px; color: var(--text-secondary);
  background: rgba(220,38,38,0.05);
  border: 1px solid rgba(220,38,38,0.1);
  border-radius: 8px; padding: 8px 12px;
  max-width: 500px; white-space: pre-line;
}

.btn-close-ticket {
  display: flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, #16a34a, #22c55e);
  color: #fff; border: none; border-radius: 10px;
  padding: 10px 20px; font-size: 14px; font-weight: 600;
  cursor: pointer; white-space: nowrap; flex-shrink: 0;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(22,163,74,0.35);
  font-family: 'Prompt', sans-serif;
}

.btn-close-ticket:hover  { box-shadow: 0 4px 16px rgba(22,163,74,0.5); transform: translateY(-1px); }
.btn-close-ticket:active { transform: scale(0.97); }

@media (max-width: 600px) {
  .ticket-banner { flex-direction: column; }
  .btn-close-ticket { width: 100%; justify-content: center; }
}

/* ===================================================
   TICKET PAGE
=================================================== */
.ticket-summary-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px; margin-bottom: 20px;
}

.ticket-summary-card {
  background: #fff; border-radius: var(--radius);
  padding: 22px 20px;
  display: flex; align-items: center; gap: 16px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.ticket-summary-card i { font-size: 28px; }

.ticket-summary-card.open   { border-top: 3px solid var(--red); }
.ticket-summary-card.open   i { color: var(--red); }
.ticket-summary-card.closed { border-top: 3px solid var(--green); }
.ticket-summary-card.closed i { color: var(--green); }
.ticket-summary-card.total  { border-top: 3px solid var(--primary); }
.ticket-summary-card.total  i { color: var(--primary); }

.tscard-num { font-size: 30px; font-weight: 800; line-height: 1; }

.ticket-summary-card.open   .tscard-num { color: var(--red); }
.ticket-summary-card.closed .tscard-num { color: var(--green); }
.ticket-summary-card.total  .tscard-num { color: var(--primary); }

.tscard-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; font-weight: 500; }

.ticket-filter {
  display: flex; align-items: center;
  gap: 8px; flex-wrap: wrap;
}

.ticket-filter label { font-size: 12px; color: var(--text-secondary); font-weight: 600; }

.tbtn {
  padding: 6px 14px; border: 1px solid var(--border);
  border-radius: 20px; background: var(--bg);
  font-size: 12px; cursor: pointer;
  transition: all 0.2s; font-family: 'Prompt', sans-serif;
  color: var(--text-secondary);
}

.tbtn:hover { background: var(--card-bg); box-shadow: var(--shadow); }

.tbtn.active,
.tbtn.active-type {
  background: var(--primary); color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 6px rgba(2,132,199,0.3);
}

/* Ticket Card */
.ticket-card {
  background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow); margin-bottom: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-left: 4px solid #cbd5e1;
  transition: box-shadow 0.2s, transform 0.2s;
}

.ticket-card:hover { box-shadow: var(--shadow-hover); transform: translateX(2px); }
.ticket-card.status-open   { border-left-color: var(--red); }
.ticket-card.status-closed { border-left-color: var(--green); }

.ticket-card-header {
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 14px 20px; cursor: pointer; user-select: none;
}

.ticket-card-header:hover { background: rgba(0,0,0,0.015); }

.ticket-card-left { display: flex; align-items: center; gap: 12px; flex: 1; }

.ticket-id { font-size: 11px; color: var(--text-muted); min-width: 50px; font-weight: 600; }

.ticket-type-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600;
}

.type-temp { background: rgba(234,88,12,0.1); color: #c2410c; }
.type-hum  { background: rgba(2,132,199,0.1);  color: #0369a1; }
.type-both { background: rgba(220,38,38,0.1);  color: #991b1b; }

.ticket-status-badge {
  padding: 4px 12px; border-radius: 20px;
  font-size: 11px; font-weight: 600;
}

.badge-open   { background: rgba(220,38,38,0.1); color: #991b1b; }
.badge-closed { background: rgba(22,163,74,0.1); color: #15803d; }

.ticket-values { display: flex; gap: 16px; font-size: 13px; color: var(--text-secondary); }
.ticket-values span { font-weight: 700; color: var(--text); }

.ticket-card-body { padding: 0 20px 16px; border-top: 1px solid var(--border); }

.ticket-meta-row {
  display: flex; gap: 24px;
  margin: 12px 0 8px; font-size: 13px; color: var(--text-secondary);
}

.ticket-meta-row b { color: var(--text); }

.ticket-message-box {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 14px;
  font-size: 13px; white-space: pre-line;
  color: var(--text-secondary); margin-bottom: 12px;
}

.btn-close-ticket-sm {
  padding: 7px 16px;
  background: linear-gradient(135deg, #16a34a, #22c55e);
  color: #fff; border: none; border-radius: 8px;
  font-size: 13px; cursor: pointer;
  font-family: 'Prompt', sans-serif;
  transition: all 0.2s;
  box-shadow: 0 2px 6px rgba(22,163,74,0.3);
}

.btn-close-ticket-sm:hover { box-shadow: 0 4px 12px rgba(22,163,74,0.45); transform: translateY(-1px); }

.ticket-loading { text-align: center; padding: 48px; color: var(--text-secondary); font-size: 15px; }

.ticket-empty { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.ticket-empty i { font-size: 52px; display: block; margin-bottom: 12px; opacity: 0.2; }

@media (max-width: 600px) {
  .ticket-summary-cards { grid-template-columns: 1fr 1fr; }
  .ticket-summary-card.total { grid-column: 1 / -1; }
  .ticket-values { flex-wrap: wrap; gap: 8px; }
}

/* ===================================================
   DOCS PAGE
=================================================== */
.doc-card { margin-bottom: 20px; }

.doc-desc {
  font-size: 13px; color: var(--text-secondary);
  margin-bottom: 20px; line-height: 1.7;
}

.doc-desc code {
  background: var(--bg); padding: 2px 7px;
  border-radius: 5px; font-size: 12px;
  color: var(--primary); font-family: 'Courier New', monospace;
  border: 1px solid var(--border);
}

.doc-grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px; margin-bottom: 0;
}

.doc-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

/* ── Architecture Flow ── */
.arch-flow {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  padding: 24px 0 8px;
  flex-wrap: nowrap;
}

.arch-node {
  display: flex; flex-direction: column; align-items: center;
  min-width: 100px; text-align: center;
  flex-shrink: 0;
}

.arch-icon {
  width: 56px; height: 56px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 8px;
}

.arch-node.hw   .arch-icon { background: rgba(2,132,199,0.12);  color: var(--primary); }
.arch-node.api  .arch-icon { background: rgba(22,163,74,0.12);  color: var(--green); }
.arch-node.db   .arch-icon { background: rgba(217,119,6,0.12);  color: var(--yellow); }
.arch-node.web  .arch-icon { background: rgba(124,58,237,0.12); color: #7c3aed; }
.arch-node.line .arch-icon { background: rgba(22,163,74,0.12);  color: #06c755; }

.arch-label { font-size: 13px; font-weight: 700; color: var(--text); }
.arch-sub   { font-size: 11px; color: var(--text-muted); margin-top: 2px; line-height: 1.4; }

.arch-arrow {
  display: flex; flex-direction: column; align-items: center;
  padding: 0 8px; color: var(--text-muted);
  flex-shrink: 0;
}

.arch-arrow i   { font-size: 14px; color: var(--border); margin-bottom: 2px; }
.arch-arrow span { font-size: 10px; text-align: center; color: var(--text-muted); line-height: 1.4; }

/* ── Pin Diagram ── */
.doc-pin-box {
  background: var(--bg); border-radius: 10px;
  padding: 14px 16px; margin-top: 16px;
  border: 1px solid var(--border);
}

.doc-pin-title {
  font-size: 12px; font-weight: 700;
  color: var(--text-secondary); margin-bottom: 10px;
  display: flex; align-items: center; gap: 6px;
}

.pin-diagram { display: flex; flex-direction: column; gap: 6px; }

.pin-item {
  display: flex; align-items: center; gap: 10px; font-size: 13px;
}

.pin-num {
  background: var(--sidebar-bg); color: #fff;
  font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 6px;
  font-family: monospace; min-width: 68px; text-align: center;
}

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

.pin-note {
  font-size: 12px; color: var(--primary);
  background: rgba(2,132,199,0.08);
  padding: 6px 10px; border-radius: 6px;
  margin-top: 4px;
}

/* ── Info Box ── */
.doc-info-box {
  display: flex; align-items: flex-start; gap: 10px;
  background: rgba(2,132,199,0.07);
  border: 1px solid rgba(2,132,199,0.2);
  border-radius: 10px; padding: 12px 14px;
  font-size: 13px; color: var(--text-secondary);
  margin-top: 12px; line-height: 1.6;
}

.doc-info-box i { color: var(--primary); font-size: 15px; flex-shrink: 0; margin-top: 1px; }
.doc-info-box.blue  { background: rgba(2,132,199,0.06); border-color: rgba(2,132,199,0.15); }
.doc-info-box.green { background: rgba(22,163,74,0.07); border-color: rgba(22,163,74,0.2); }
.doc-info-box.green i { color: var(--green); }
.doc-info-box.orange { background: rgba(234,88,12,0.07); border-color: rgba(234,88,12,0.2); }
.doc-info-box.orange i { color: var(--orange); }

/* ── Doc Tables ── */
.doc-table {
  width: 100%; border-collapse: collapse;
  font-size: 13px; margin-top: 8px;
}

.doc-table th {
  background: var(--bg); color: var(--text-secondary);
  padding: 8px 12px; text-align: left;
  font-weight: 600; font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.5px;
  border-bottom: 2px solid var(--border);
}

.doc-table td {
  padding: 9px 12px; border-bottom: 1px solid var(--border);
  color: var(--text);
}

.doc-table tr:last-child td { border-bottom: none; }
.doc-table tr:hover td { background: rgba(2,132,199,0.03); }
.doc-table code {
  background: var(--bg); padding: 2px 6px;
  border-radius: 4px; font-size: 12px;
  color: var(--primary); font-family: 'Courier New', monospace;
}

.doc-table.no-border th { background: transparent; border-bottom: 1px solid var(--border); }

/* ── DB Table Cards ── */
.db-table-card {
  border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
}

.db-table-header {
  padding: 10px 14px; font-size: 13px;
  font-weight: 700; display: flex;
  align-items: center; gap: 8px; color: #fff;
}

.db-table-header.primary { background: linear-gradient(135deg, var(--primary), var(--primary-light)); }
.db-table-header.green   { background: linear-gradient(135deg, var(--green), #22c55e); }
.db-table-header.red     { background: linear-gradient(135deg, var(--red), #ef4444); }

/* ── API Table ── */
.api-table-wrap { overflow-x: auto; }

.api-table { min-width: 640px; }

.method-badge {
  display: inline-block; padding: 3px 10px;
  border-radius: 6px; font-size: 11px;
  font-weight: 700; letter-spacing: 0.5px; font-family: monospace;
}

.method-badge.get  { background: rgba(22,163,74,0.12);  color: #15803d; }
.method-badge.post { background: rgba(234,88,12,0.12);  color: #c2410c; }

/* ── Threshold List ── */
.threshold-list { display: flex; flex-direction: column; gap: 10px; }

.threshold-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 14px; border-radius: 10px;
  border-left: 4px solid transparent;
}

.threshold-item.green  { background: rgba(22,163,74,0.06);  border-left-color: var(--green); }
.threshold-item.yellow { background: rgba(217,119,6,0.06);  border-left-color: var(--yellow); }
.threshold-item.orange { background: rgba(234,88,12,0.06);  border-left-color: var(--orange); }
.threshold-item.red    { background: rgba(220,38,38,0.06);  border-left-color: var(--red); }

.th-dot {
  width: 12px; height: 12px; border-radius: 50%;
  flex-shrink: 0; margin-top: 3px;
}

.threshold-item.green  .th-dot { background: var(--green); }
.threshold-item.yellow .th-dot { background: var(--yellow); }
.threshold-item.orange .th-dot { background: var(--orange); }
.threshold-item.red    .th-dot { background: var(--red); }

.th-range { font-size: 14px; font-weight: 600; color: var(--text); }
.th-desc  { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

/* ── Ticket Flow ── */
.ticket-flow {
  display: flex; align-items: center;
  gap: 0; overflow-x: auto; padding: 8px 0;
}

.tf-step {
  display: flex; flex-direction: column; align-items: center;
  min-width: 110px; text-align: center; flex-shrink: 0;
}

.tf-num {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--primary); color: #fff;
  font-size: 11px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 6px;
}

.tf-icon {
  width: 48px; height: 48px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; margin-bottom: 6px;
}

.tf-icon.warn  { background: rgba(220,38,38,0.1);   color: var(--red); }
.tf-icon.check { background: rgba(2,132,199,0.1);   color: var(--primary); }
.tf-icon.open  { background: rgba(234,88,12,0.1);   color: var(--orange); }
.tf-icon.hold  { background: rgba(217,119,6,0.1);   color: var(--yellow); }
.tf-icon.close { background: rgba(22,163,74,0.1);   color: var(--green); }

.tf-label { font-size: 12px; font-weight: 700; color: var(--text); }
.tf-sub   { font-size: 10px; color: var(--text-muted); margin-top: 2px; line-height: 1.4; }

.tf-arrow {
  font-size: 14px; color: var(--border);
  padding: 0 4px; flex-shrink: 0;
  padding-bottom: 28px;
}

/* ── Setup Steps ── */
.setup-steps { display: flex; flex-direction: column; gap: 0; }

.setup-step {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.setup-step:last-child { border-bottom: none; }

.step-num {
  width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; font-size: 13px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; box-shadow: 0 2px 6px rgba(2,132,199,0.35);
}

.step-title { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.step-desc  { font-size: 13px; color: var(--text-secondary); line-height: 1.65; }

.step-desc code {
  background: var(--bg); padding: 2px 6px;
  border-radius: 4px; font-size: 12px;
  color: var(--primary); font-family: 'Courier New', monospace;
  border: 1px solid var(--border);
}

/* ── Doc Badges ── */
.doc-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 20px;
  font-size: 12px; font-weight: 600;
}

.doc-badge.red   { background: rgba(220,38,38,0.1);  color: #991b1b; }
.doc-badge.green { background: rgba(22,163,74,0.1);  color: #15803d; }

/* ── Libraries / Deps ── */
.dep-group-title {
  font-size: 13px; font-weight: 700;
  color: var(--text); margin-bottom: 10px;
  display: flex; align-items: center; gap: 6px;
}

.dep-group-title i { color: var(--primary); }

.dep-list { list-style: none; display: flex; flex-direction: column; gap: 7px; }

.dep-list li {
  font-size: 13px; color: var(--text-secondary);
  display: flex; align-items: center; gap: 8px;
}

.dep-badge {
  background: var(--bg); border: 1px solid var(--border);
  padding: 2px 8px; border-radius: 6px;
  font-size: 11px; font-weight: 700;
  color: var(--primary); font-family: monospace;
}

@media (max-width: 768px) {
  .arch-flow    { gap: 0; }
  .arch-arrow span { display: none; }
  .ticket-flow  { gap: 0; }
  .tf-sub       { display: none; }
  .doc-grid-2   { grid-template-columns: 1fr; }
  .doc-grid-3   { grid-template-columns: 1fr; }
}