:root {
  --bg: #0c0c0e;
  --panel: #141417;
  --panel-hover: #19191e;
  --border: #232328;
  --border-light: #2e2e36;
  --text-primary: #ededf0;
  --text-secondary: #9a9aa2;
  --text-muted: #64646e;
  --accent: #7c7c8a;
  --accent-active: #9e9eb0;
  --status-green: #22c55e;
  --status-red: #ef4444;
  --status-orange: #f59e0b;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

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

body {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Common Components */
button {
  cursor: pointer;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 14px;
  transition: all 0.15s ease;
  border: 1px solid var(--border-light);
  background: var(--panel);
  color: var(--text-primary);
}

button:hover {
  background: var(--panel-hover);
  border-color: var(--accent);
}

button.btn-primary {
  background: #2b2b32;
  border-color: #3e3e48;
  color: #ffffff;
}

button.btn-primary:hover {
  background: #393944;
}

button.btn-danger {
  background: #241415;
  border-color: #4a1d20;
  color: #f87171;
}

button.btn-danger:hover {
  background: #381a1d;
  border-color: #ef4444;
}

input, select {
  background: #111114;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 9px 12px;
  border-radius: 4px;
  font-size: 13px;
  outline: none;
  font-family: inherit;
}

input:focus, select:focus {
  border-color: var(--accent);
}

/* Login Window */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 32px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.login-card h1 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

.login-card p.subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input {
  width: 100%;
}

.lockout-alert {
  background: #241415;
  border: 1px solid #4a1d20;
  color: #f87171;
  padding: 12px;
  border-radius: 4px;
  font-size: 13px;
  margin-bottom: 18px;
  display: none;
}

.lockout-timer {
  font-family: var(--font-mono);
  font-weight: 700;
}

/* App Header */
header.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

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

.header-brand h1 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.header-meta {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

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

/* Main Container */
main.dashboard {
  flex: 1;
  max-width: 1360px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 28px;
}

/* Telemetry Grid */
.telemetry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.telemetry-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 16px;
}

.telemetry-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.telemetry-value {
  font-size: 22px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.telemetry-sub {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Services & Protocols Control Section */
.section-title {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.control-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.control-info h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}

.control-info p {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 12px;
  background: #111114;
  border: 1px solid var(--border);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.status-dot.active { background: var(--status-green); }
.status-dot.inactive { background: var(--status-red); }

/* Chart Section */
.chart-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 20px;
  margin-bottom: 24px;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.chart-header-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.telemetry-freq-bar {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #101014;
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: 6px;
}

.freq-label {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.freq-presets {
  display: flex;
  gap: 3px;
}

.btn-freq {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  line-height: 1.2;
}

.btn-freq:hover {
  background: #1d1d24;
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-freq.active {
  background: #1e293b;
  color: #60a5fa;
  border-color: #3b82f6;
  font-weight: 600;
}

.custom-freq-box {
  display: flex;
  align-items: center;
  gap: 4px;
  border-left: 1px solid var(--border);
  padding-left: 6px;
  margin-left: 2px;
}

.custom-freq-box input {
  width: 54px;
  padding: 2px 5px;
  font-size: 11px;
  font-family: var(--font-mono);
  height: 22px;
  background: #09090c;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-primary);
}

.btn-freq-set {
  background: #202028;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 2px 8px;
  height: 22px;
  font-size: 11px;
  border-radius: 3px;
  cursor: pointer;
  line-height: 1;
}

.btn-freq-set:hover {
  background: #2d2d3a;
  color: var(--text-primary);
  border-color: #60a5fa;
}

.chart-legend {
  display: flex;
  gap: 18px;
  font-size: 12px;
  font-family: var(--font-mono);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-color {
  width: 12px;
  height: 3px;
  border-radius: 2px;
}

canvas#telemetryChart {
  width: 100%;
  height: 220px;
  display: block;
}

/* Manager Table */
.manager-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 20px;
}

.table-wrapper {
  overflow-x: auto;
  margin-top: 14px;
}

table.client-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

table.client-table th {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  white-space: nowrap;
}

table.client-table td {
  padding: 10px 10px;
  border-bottom: 1px solid #1c1c20;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: nowrap;
}

.traffic-cell {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.traffic-down {
  color: #60a5fa !important;
}

.traffic-up {
  color: #34d399 !important;
}

table.client-table tr:hover td {
  background: #17171b;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-content {
  background: var(--panel);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  max-width: 580px;
  width: 100%;
  padding: 24px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.link-block {
  background: #0d0d10;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px;
  margin-bottom: 14px;
}

.link-title {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
}

.link-text {
  font-family: var(--font-mono);
  font-size: 11px;
  word-break: break-all;
  color: var(--text-secondary);
  background: #09090b;
  padding: 8px;
  border-radius: 3px;
  border: 1px solid #1a1a1f;
  margin-bottom: 8px;
}

.qr-code-img {
  display: block;
  margin: 10px auto;
  border-radius: 4px;
  background: #fff;
  padding: 6px;
}