/* ============================================
   CyberSecure Microgrid Controller - Styles
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-primary: #050d1a;
  --bg-secondary: #070f20;
  --bg-card: #0a1628;
  --bg-card-hover: #0d1e36;
  --border-color: #1a3a5c;
  --border-glow: #00d4ff;
  --accent-cyan: #00d4ff;
  --accent-green: #00ff88;
  --accent-yellow: #ffcc00;
  --accent-red: #ff3366;
  --accent-purple: #a855f7;
  --accent-orange: #ff8c00;
  --text-primary: #e2f0ff;
  --text-secondary: #7a9cc0;
  --text-muted: #4a6a8a;
  --grid-line: rgba(0, 212, 255, 0.06);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-cyan); }

/* ---- Grid Background ---- */
.grid-bg {
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ---- Login Screen ---- */
#login-screen {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, #071428 0%, #020810 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.login-card {
  background: rgba(10, 22, 40, 0.95);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 40px;
  width: 420px;
  max-width: 95vw;
  position: relative;
  box-shadow: 0 0 60px rgba(0, 212, 255, 0.08), 0 0 120px rgba(0, 212, 255, 0.04);
}

.login-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  border-radius: 16px 16px 0 0;
}

.login-logo {
  font-family: 'Orbitron', monospace;
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--accent-cyan);
  text-align: center;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.login-title {
  font-family: 'Orbitron', monospace;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 4px;
}

.login-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 32px;
}

.input-group {
  position: relative;
  margin-bottom: 16px;
}

.input-group label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.input-group input, .input-group select {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 16px 12px 44px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
  outline: none;
}

.input-group input:focus, .input-group select:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.input-group .input-icon {
  position: absolute;
  left: 14px;
  top: 37px;
  color: var(--text-muted);
  font-size: 14px;
}

.input-group select {
  padding-left: 44px;
  appearance: none;
  cursor: pointer;
}

.btn-login {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, #006699, #00aacc);
  border: none;
  border-radius: 8px;
  color: white;
  font-family: 'Orbitron', monospace;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 8px;
  position: relative;
  overflow: hidden;
}

.btn-login:hover {
  background: linear-gradient(135deg, #0077aa, #00ccee);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
  transform: translateY(-1px);
}

.btn-login:active { transform: translateY(0); }

.login-error {
  background: rgba(255, 51, 102, 0.1);
  border: 1px solid rgba(255, 51, 102, 0.3);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--accent-red);
  margin-top: 12px;
  display: none;
  align-items: center;
  gap: 8px;
}

.demo-creds {
  margin-top: 20px;
  padding: 12px;
  background: rgba(0, 212, 255, 0.05);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: 8px;
  font-size: 12px;
  color: var(--text-secondary);
}

.demo-creds strong { color: var(--accent-cyan); }

/* ---- Sidebar ---- */
#sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  z-index: 100;
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

#sidebar.collapsed { transform: translateX(-220px); }

.sidebar-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, #006699, #004466);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  border: 1px solid rgba(0, 212, 255, 0.3);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.15);
}

.sidebar-logo-text {
  font-family: 'Orbitron', monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  letter-spacing: 0.5px;
}

.sidebar-logo-sub {
  font-size: 10px;
  color: var(--accent-cyan);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}

.nav-section-label {
  padding: 8px 20px 4px;
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  cursor: pointer;
  transition: all 0.2s;
  border-left: 3px solid transparent;
  margin: 1px 0;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  position: relative;
}

.nav-item:hover {
  background: rgba(0, 212, 255, 0.05);
  color: var(--text-primary);
  border-left-color: rgba(0, 212, 255, 0.4);
}

.nav-item.active {
  background: rgba(0, 212, 255, 0.08);
  color: var(--accent-cyan);
  border-left-color: var(--accent-cyan);
}

.nav-item .nav-icon {
  width: 20px;
  text-align: center;
  font-size: 15px;
  flex-shrink: 0;
}

.nav-badge {
  margin-left: auto;
  background: var(--accent-red);
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
  min-width: 20px;
  text-align: center;
}

.nav-badge.green { background: var(--accent-green); color: #000; }
.nav-badge.yellow { background: var(--accent-yellow); color: #000; }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
}

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

.user-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.user-avatar.admin { background: rgba(168, 85, 247, 0.2); color: var(--accent-purple); border: 1px solid rgba(168,85,247,0.4); }
.user-avatar.operator { background: rgba(0, 212, 255, 0.15); color: var(--accent-cyan); border: 1px solid rgba(0,212,255,0.3); }
.user-avatar.viewer { background: rgba(0, 255, 136, 0.15); color: var(--accent-green); border: 1px solid rgba(0,255,136,0.3); }

.user-name { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.user-role { font-size: 11px; color: var(--text-muted); text-transform: capitalize; }

.btn-logout {
  margin-left: auto;
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-secondary);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.2s;
}
.btn-logout:hover { border-color: var(--accent-red); color: var(--accent-red); }

/* ---- Top Bar ---- */
#topbar {
  position: fixed;
  top: 0;
  left: 260px;
  right: 0;
  height: 60px;
  background: rgba(7, 15, 32, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 99;
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  transition: left 0.3s;
}

#sidebar.collapsed ~ #topbar,
#sidebar.collapsed ~ #main-content {
  left: 40px;
}

#sidebar.collapsed ~ #main-content { margin-left: 40px; }

.topbar-title {
  font-family: 'Orbitron', monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.topbar-spacer { flex: 1; }

.system-status-pills {
  display: flex;
  gap: 8px;
  align-items: center;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border: 1px solid;
}

.status-pill.online { background: rgba(0,255,136,0.08); border-color: rgba(0,255,136,0.3); color: var(--accent-green); }
.status-pill.warning { background: rgba(255,204,0,0.08); border-color: rgba(255,204,0,0.3); color: var(--accent-yellow); }
.status-pill.danger { background: rgba(255,51,102,0.08); border-color: rgba(255,51,102,0.3); color: var(--accent-red); }
.status-pill.info { background: rgba(0,212,255,0.08); border-color: rgba(0,212,255,0.3); color: var(--accent-cyan); }

.pulse-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse-anim 2s infinite;
}

@keyframes pulse-anim {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.btn-sidebar-toggle {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-secondary);
  width: 32px; height: 32px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all 0.2s;
}
.btn-sidebar-toggle:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }

.topbar-clock {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--text-secondary);
  border-left: 1px solid var(--border-color);
  padding-left: 16px;
}

/* ---- Main Content ---- */
#main-content {
  margin-left: 260px;
  padding-top: 60px;
  min-height: 100vh;
  transition: margin-left 0.3s;
}

.page {
  padding: 24px;
  display: none;
}

.page.active { display: block; }

/* ---- Section Header ---- */
.section-header {
  margin-bottom: 24px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.section-title {
  font-family: 'Orbitron', monospace;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.section-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.05);
}

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

.card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title .icon { font-size: 14px; }

/* ---- KPI Metric Cards ---- */
.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: all 0.25s;
}

.kpi-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  border-radius: 0 0 12px 12px;
}

.kpi-card.cyan::after { background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent); }
.kpi-card.green::after { background: linear-gradient(90deg, transparent, var(--accent-green), transparent); }
.kpi-card.yellow::after { background: linear-gradient(90deg, transparent, var(--accent-yellow), transparent); }
.kpi-card.red::after { background: linear-gradient(90deg, transparent, var(--accent-red), transparent); }
.kpi-card.purple::after { background: linear-gradient(90deg, transparent, var(--accent-purple), transparent); }
.kpi-card.orange::after { background: linear-gradient(90deg, transparent, var(--accent-orange), transparent); }

.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.kpi-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  margin-bottom: 14px;
}

.kpi-icon.cyan { background: rgba(0,212,255,0.12); color: var(--accent-cyan); }
.kpi-icon.green { background: rgba(0,255,136,0.12); color: var(--accent-green); }
.kpi-icon.yellow { background: rgba(255,204,0,0.12); color: var(--accent-yellow); }
.kpi-icon.red { background: rgba(255,51,102,0.12); color: var(--accent-red); }
.kpi-icon.purple { background: rgba(168,85,247,0.12); color: var(--accent-purple); }
.kpi-icon.orange { background: rgba(255,140,0,0.12); color: var(--accent-orange); }

.kpi-value {
  font-family: 'Orbitron', monospace;
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.kpi-unit {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 400;
  margin-left: 4px;
}

.kpi-label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 10px;
}

.kpi-trend {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
}

.kpi-trend.up { color: var(--accent-green); }
.kpi-trend.down { color: var(--accent-red); }
.kpi-trend.stable { color: var(--text-secondary); }

/* ---- Grid Layouts ---- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-1-2 { display: grid; grid-template-columns: 1fr 2fr; gap: 16px; }
.grid-2-1 { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
.grid-1-1-1-1 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* ---- Charts ---- */
.chart-wrapper {
  position: relative;
  height: 220px;
}

.chart-wrapper.tall { height: 280px; }
.chart-wrapper.sm { height: 160px; }

/* ---- Battery Bar ---- */
.battery-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.battery-visual {
  position: relative;
  height: 40px;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.battery-fill {
  height: 100%;
  border-radius: 7px;
  transition: width 1s ease;
  position: relative;
}

.battery-fill.high { background: linear-gradient(90deg, #00aa55, #00ff88); }
.battery-fill.mid { background: linear-gradient(90deg, #cc8800, #ffcc00); }
.battery-fill.low { background: linear-gradient(90deg, #cc2244, #ff3366); }

.battery-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Orbitron', monospace;
  font-size: 14px;
  font-weight: 700;
  color: white;
  text-shadow: 0 1px 3px rgba(0,0,0,0.7);
}

/* ---- Progress Bars ---- */
.progress-bar-wrapper { margin-bottom: 12px; }

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.progress-bar-bg {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 1s ease;
}

.progress-bar-fill.cyan { background: linear-gradient(90deg, #0088aa, var(--accent-cyan)); }
.progress-bar-fill.green { background: linear-gradient(90deg, #007744, var(--accent-green)); }
.progress-bar-fill.yellow { background: linear-gradient(90deg, #aa7700, var(--accent-yellow)); }
.progress-bar-fill.red { background: linear-gradient(90deg, #aa1133, var(--accent-red)); }
.progress-bar-fill.purple { background: linear-gradient(90deg, #7700cc, var(--accent-purple)); }

/* ---- Gauge ---- */
.gauge-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.gauge-svg { overflow: visible; }

/* ---- Status Indicator ---- */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
}

.status-indicator.online { background: rgba(0,255,136,0.1); color: var(--accent-green); }
.status-indicator.offline { background: rgba(255,51,102,0.1); color: var(--accent-red); }
.status-indicator.warning { background: rgba(255,204,0,0.1); color: var(--accent-yellow); }
.status-indicator.standby { background: rgba(0,212,255,0.1); color: var(--accent-cyan); }

/* ---- Alert Items ---- */
.alert-item {
  display: flex;
  gap: 12px;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid;
  margin-bottom: 8px;
  transition: all 0.2s;
  cursor: pointer;
}

.alert-item:hover { transform: translateX(3px); }

.alert-item.critical { background: rgba(255,51,102,0.07); border-color: rgba(255,51,102,0.25); }
.alert-item.warning { background: rgba(255,204,0,0.07); border-color: rgba(255,204,0,0.25); }
.alert-item.info { background: rgba(0,212,255,0.07); border-color: rgba(0,212,255,0.25); }
.alert-item.success { background: rgba(0,255,136,0.07); border-color: rgba(0,255,136,0.25); }

.alert-icon { font-size: 16px; padding-top: 2px; flex-shrink: 0; }
.alert-item.critical .alert-icon { color: var(--accent-red); }
.alert-item.warning .alert-icon { color: var(--accent-yellow); }
.alert-item.info .alert-icon { color: var(--accent-cyan); }
.alert-item.success .alert-icon { color: var(--accent-green); }

.alert-title { font-size: 13px; font-weight: 600; color: var(--text-primary); margin-bottom: 2px; }
.alert-desc { font-size: 12px; color: var(--text-secondary); }
.alert-time { font-size: 11px; color: var(--text-muted); margin-left: auto; white-space: nowrap; font-family: 'JetBrains Mono', monospace; }

/* ---- Log Table ---- */
.log-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.log-table th {
  text-align: left;
  padding: 10px 14px;
  color: var(--text-muted);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}
.log-table td {
  padding: 10px 14px;
  border-bottom: 1px solid rgba(26,58,92,0.5);
  color: var(--text-secondary);
  vertical-align: top;
}
.log-table tr:hover td { background: rgba(0,212,255,0.03); }
.log-table .log-time { font-family: 'JetBrains Mono', monospace; font-size: 12px; white-space: nowrap; color: var(--text-muted); }
.log-table .log-msg { color: var(--text-primary); }

.log-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.log-badge.critical { background: rgba(255,51,102,0.15); color: var(--accent-red); }
.log-badge.warning { background: rgba(255,204,0,0.15); color: var(--accent-yellow); }
.log-badge.info { background: rgba(0,212,255,0.15); color: var(--accent-cyan); }
.log-badge.success { background: rgba(0,255,136,0.15); color: var(--accent-green); }
.log-badge.auth { background: rgba(168,85,247,0.15); color: var(--accent-purple); }
.log-badge.system { background: rgba(255,140,0,0.15); color: var(--accent-orange); }

/* ---- Microgrid Topology ---- */
.topology-container {
  position: relative;
  background: rgba(0,0,0,0.3);
  border-radius: 12px;
  padding: 20px;
  min-height: 340px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.topo-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: transform 0.2s;
}

.topo-node:hover { transform: scale(1.05); }

.topo-node-icon {
  width: 60px; height: 60px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  border: 2px solid;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
  position: relative;
}

.topo-node-icon.solar { background: rgba(255,204,0,0.1); border-color: rgba(255,204,0,0.5); color: var(--accent-yellow); }
.topo-node-icon.battery { background: rgba(0,255,136,0.1); border-color: rgba(0,255,136,0.5); color: var(--accent-green); }
.topo-node-icon.load { background: rgba(0,212,255,0.1); border-color: rgba(0,212,255,0.5); color: var(--accent-cyan); }
.topo-node-icon.grid { background: rgba(168,85,247,0.1); border-color: rgba(168,85,247,0.5); color: var(--accent-purple); }
.topo-node-icon.controller { background: rgba(255,140,0,0.15); border-color: rgba(255,140,0,0.6); color: var(--accent-orange); }

.topo-node-label { font-size: 11px; font-weight: 600; color: var(--text-secondary); text-align: center; }
.topo-node-value { font-family: 'Orbitron', monospace; font-size: 12px; font-weight: 700; color: var(--text-primary); }

/* Power flow lines */
.flow-line {
  position: absolute;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  height: 2px;
  transform-origin: left center;
  opacity: 0.5;
  animation: flow-anim 2s linear infinite;
}

@keyframes flow-anim {
  0% { opacity: 0.2; }
  50% { opacity: 0.7; }
  100% { opacity: 0.2; }
}

/* ---- Role Badge ---- */
.role-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.role-badge.admin { background: rgba(168,85,247,0.15); color: var(--accent-purple); border: 1px solid rgba(168,85,247,0.3); }
.role-badge.operator { background: rgba(0,212,255,0.1); color: var(--accent-cyan); border: 1px solid rgba(0,212,255,0.25); }
.role-badge.viewer { background: rgba(0,255,136,0.1); color: var(--accent-green); border: 1px solid rgba(0,255,136,0.25); }

/* ---- Security Threat Meter ---- */
.threat-meter {
  position: relative;
  height: 8px;
  background: rgba(255,255,255,0.06);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 4px;
}

.threat-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 1s ease;
  background: linear-gradient(90deg, #00ff88 0%, #ffcc00 50%, #ff3366 100%);
}

/* ---- Toggle Switch ---- */
.toggle-switch {
  position: relative;
  width: 44px; height: 24px;
  display: inline-block;
  cursor: pointer;
}

.toggle-switch input { display: none; }

.toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  border-radius: 12px;
  transition: 0.3s;
  border: 1px solid var(--border-color);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  left: 4px; top: 3px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: 0.3s;
}

.toggle-switch input:checked + .toggle-slider { background: rgba(0,212,255,0.2); border-color: var(--accent-cyan); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); background: var(--accent-cyan); }

/* ---- Encryption Status ---- */
.enc-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 8px;
  background: rgba(0,255,136,0.07);
  border: 1px solid rgba(0,255,136,0.2);
  color: var(--accent-green);
}

/* ---- Anomaly Detection Items ---- */
.anomaly-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 8px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border-color);
  margin-bottom: 8px;
  transition: all 0.2s;
}

.anomaly-item.detected {
  border-color: rgba(255,51,102,0.4);
  background: rgba(255,51,102,0.06);
  animation: anomaly-pulse 2s ease infinite;
}

@keyframes anomaly-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,51,102,0); }
  50% { box-shadow: 0 0 12px 2px rgba(255,51,102,0.15); }
}

.anomaly-score {
  font-family: 'Orbitron', monospace;
  font-size: 18px;
  font-weight: 700;
  min-width: 50px;
  text-align: center;
}

.anomaly-item.detected .anomaly-score { color: var(--accent-red); }
.anomaly-item:not(.detected) .anomaly-score { color: var(--accent-green); }

/* ---- Connection Lines SVG Canvas ---- */
#topo-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.3px;
}

.btn-primary { background: rgba(0,150,200,0.2); border-color: rgba(0,212,255,0.5); color: var(--accent-cyan); }
.btn-primary:hover { background: rgba(0,150,200,0.35); box-shadow: 0 0 14px rgba(0,212,255,0.2); }
.btn-danger { background: rgba(255,51,102,0.1); border-color: rgba(255,51,102,0.4); color: var(--accent-red); }
.btn-danger:hover { background: rgba(255,51,102,0.2); }
.btn-success { background: rgba(0,255,136,0.1); border-color: rgba(0,255,136,0.4); color: var(--accent-green); }
.btn-success:hover { background: rgba(0,255,136,0.2); }
.btn-sm { padding: 5px 10px; font-size: 11px; }

/* ---- Notifications Dropdown ---- */
.notif-btn {
  position: relative;
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-secondary);
  width: 32px; height: 32px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  transition: all 0.2s;
}
.notif-btn:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }

.notif-count {
  position: absolute;
  top: -5px; right: -5px;
  background: var(--accent-red);
  color: white;
  font-size: 9px;
  font-weight: 700;
  width: 16px; height: 16px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

/* ---- Data Value Display ---- */
.data-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(26,58,92,0.4);
}
.data-row:last-child { border-bottom: none; }
.data-row-label { font-size: 13px; color: var(--text-secondary); }
.data-row-value { font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--text-primary); font-weight: 500; }
.data-row-value.cyan { color: var(--accent-cyan); }
.data-row-value.green { color: var(--accent-green); }
.data-row-value.yellow { color: var(--accent-yellow); }
.data-row-value.red { color: var(--accent-red); }

/* ---- Scan Effect ---- */
.scan-effect {
  position: absolute;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0,212,255,0.6), transparent);
  top: 0;
  animation: scan 3s linear infinite;
}

@keyframes scan {
  0% { top: 0; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

/* ---- Responsive ---- */
@media (max-width: 1280px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-1-1-1-1 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  #sidebar { transform: translateX(-260px); }
  #sidebar.mobile-open { transform: translateX(0); }
  #topbar, #main-content { left: 0; margin-left: 0; }
  .grid-3, .grid-2, .grid-1-2, .grid-2-1 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
}

/* ---- Topo Card Glow ---- */
.glow-cyan { box-shadow: 0 0 20px rgba(0,212,255,0.12); }
.glow-green { box-shadow: 0 0 20px rgba(0,255,136,0.12); }
.glow-yellow { box-shadow: 0 0 20px rgba(255,204,0,0.12); }
.glow-red { box-shadow: 0 0 20px rgba(255,51,102,0.12); }

/* ---- Mode Buttons ---- */
.mode-btn {
  flex: 1;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.mode-btn.active { background: rgba(0,212,255,0.12); border-color: var(--accent-cyan); color: var(--accent-cyan); }
.mode-btn:hover:not(.active) { background: rgba(255,255,255,0.04); color: var(--text-primary); }

/* ---- Divider ---- */
.divider { border: none; border-top: 1px solid var(--border-color); margin: 16px 0; }

/* ---- Number Fade Animation ---- */
@keyframes numUpdate {
  0% { opacity: 0.3; }
  100% { opacity: 1; }
}
.updating { animation: numUpdate 0.5s ease; }

/* ---- MQTT Status bar ---- */
.mqtt-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
}
.mqtt-bar .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-green); animation: pulse-anim 1.5s infinite; }