:root {
  /* Light & Sober Palette */
  --bg: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F1F5F9;
  --bg-subtle: #F1F5F9;
  --border: #E2E8F0;
  --border-strong: #CBD5E1;
  --border-focus: #3B82F6;
  
  /* Primary & Accents */
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --primary-light: #EFF6FF;
  
  --accent-gold: #D97706;
  --accent-emerald: #059669;
  --accent-rose: #DC2626;
  --accent-sky: #0284C7;

  /* Typography */
  --text-main: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  --text-dim: #94A3B8;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, Menlo, Monaco, monospace;
  
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.08), 0 1px 2px -1px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  font-size: 14.5px;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

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

.brand-logo {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
}

.brand-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.2px;
  color: var(--text-main);
}

.brand-badge {
  font-size: 11px;
  font-weight: 600;
  background: #FEF3C7;
  color: #B45309;
  border: 1px solid #FDE68A;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-left: 8px;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.disconnected { background: var(--text-dim); }
.status-dot.connected { background: var(--accent-emerald); box-shadow: 0 0 6px rgba(5, 150, 105, 0.5); }
.status-dot.busy { background: var(--accent-gold); box-shadow: 0 0 6px rgba(217, 119, 6, 0.5); }

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

.sidebar {
  width: 350px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.content-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: #FAFAFA;
}

.card-header h2 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.2px;
  color: var(--text-main);
}

.card-header h3 {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-main);
}

.subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.card-body {
  padding: 20px;
}

/* Forms */
label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.required { color: var(--accent-rose); }

input[type="text"],
input[type="email"],
input[type="password"],
select {
  width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--border-strong);
  color: var(--text-main);
  border-radius: var(--radius-md);
  padding: 9px 13px;
  font-size: 14px;
  font-family: inherit;
  transition: all 0.15s ease;
}

input::placeholder {
  color: var(--text-dim);
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.input-with-action {
  display: flex;
  gap: 6px;
}

.btn-icon {
  background: #FFFFFF;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  padding: 0 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

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

.field-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
  display: block;
  line-height: 1.45;
}

.form-group {
  margin-bottom: 16px;
}

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

.form-row-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 18px;
  font-size: 13px;
  color: var(--text-secondary);
}

.form-row-checkbox input[type="checkbox"] {
  cursor: pointer;
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

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

.btn-danger {
  background: var(--accent-rose);
  color: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-danger:hover {
  background: #B91C1C;
}

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: 12px 24px;
  font-size: 14.5px;
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 5px 12px;
  font-size: 12px;
}

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

.btn-ghost:hover {
  background: #E2E8F0;
  color: var(--text-main);
}

/* Tabs */
.tab-nav {
  display: flex;
  gap: 4px;
  background: #E2E8F0;
  padding: 4px;
  border-radius: var(--radius-lg);
  width: fit-content;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  color: var(--text-main);
}

.tab-btn.active {
  background: #FFFFFF;
  color: var(--text-main);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

/* Checkbox Cluster */
.scope-options {
  margin: 18px 0;
  padding: 16px;
  background: #F8FAFC;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.scope-title {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.checkbox-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.check-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  padding: 7px 14px;
  border-radius: var(--radius-full);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.15s ease;
}

.check-pill:hover {
  border-color: var(--primary);
  background: #F8FAFC;
}

.check-pill input {
  accent-color: var(--primary);
  cursor: pointer;
}

/* Mode Cluster */
.mode-cluster {
  margin: 20px 0;
}

.radio-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 8px;
}

.radio-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  padding: 14px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
}

.radio-card:hover {
  background: #F8FAFC;
  border-color: var(--border-strong);
}

.radio-card input[type="radio"] {
  accent-color: var(--primary);
  margin-top: 3px;
  cursor: pointer;
}

.radio-card input[type="radio"]:checked + .radio-content strong {
  color: var(--primary);
}

.radio-content strong {
  display: block;
  font-size: 13.5px;
  color: var(--text-main);
  margin-bottom: 4px;
}

.radio-content span {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

.action-footer {
  margin-top: 24px;
  display: flex;
  justify-content: flex-end;
}

/* Profile Card */
.profile-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.avatar {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #3B82F6, #1D4ED8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.user-meta strong {
  display: block;
  font-size: 14px;
  color: var(--text-main);
}

.user-meta span {
  font-size: 12px;
  color: var(--text-muted);
}

.workspace-selector {
  padding: 14px 20px;
}

/* Info card & PAT Guide */
.info-card {
  padding: 16px 20px;
  font-size: 13px;
  color: var(--text-secondary);
}

.info-card h4 {
  color: var(--text-main);
  font-size: 13.5px;
  margin-bottom: 6px;
}

.info-card code {
  font-family: var(--font-mono);
  background: #F1F5F9;
  border: 1px solid #E2E8F0;
  padding: 2px 5px;
  border-radius: 4px;
  color: var(--text-secondary);
}

.label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.label-row label {
  margin-bottom: 0;
}

.link-external {
  font-size: 12px;
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s ease;
}

.link-external:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

.pat-guide-card {
  background: #F8FAFC;
  border-color: #E2E8F0;
}

.pat-guide-card h4 {
  color: #1E40AF;
  font-size: 13.5px;
  margin-bottom: 10px;
  font-weight: 600;
}

.pat-steps {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  line-height: 1.45;
  font-size: 12.5px;
}

.pat-steps li {
  color: var(--text-secondary);
}

.pat-steps li strong {
  color: var(--text-main);
}

.pat-steps a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.pat-steps a:hover {
  text-decoration: underline;
  color: var(--primary-hover);
}

/* Monitor Card */
.monitor-card {
  margin-top: 8px;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: var(--radius-full);
}

.badge-info { background: #EFF6FF; color: #1D4ED8; border: 1px solid #BFDBFE; }
.badge-success { background: #ECFDF5; color: #047857; border: 1px solid #A7F3D0; }
.badge-warning { background: #FFFBEB; color: #B45309; border: 1px solid #FDE68A; }
.badge-danger { background: #FEF2F2; color: #B91C1C; border: 1px solid #FECACA; }

/* Progress */
.progress-wrap {
  padding: 14px 20px 10px;
  border-bottom: 1px solid var(--border);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: #E2E8F0;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #2563EB, #059669);
  transition: width 0.3s ease;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

/* Metric Ribbon */
.metric-ribbon {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-bottom: 1px solid var(--border);
  background: #F8FAFC;
}

.metric-card {
  padding: 12px 16px;
  border-right: 1px solid var(--border);
  text-align: center;
}

.metric-card:last-child {
  border-right: none;
}

.metric-label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.metric-val {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.text-bad { color: var(--accent-rose); }

/* Terminal Log */
.terminal-log {
  background: #0F172A;
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  max-height: 380px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.log-row {
  line-height: 1.6;
  word-break: break-word;
}

.log-info { color: #38BDF8; }
.log-success { color: #34D399; }
.log-warn { color: #FBBF24; }
.log-error { color: #F87171; }
.log-dim { color: #64748B; }

/* Footer */
.footer {
  padding: 18px 32px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: auto;
}

/* Spinner */
.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  display: inline-block;
  animation: spin 0.8s linear infinite;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .main-layout {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
  }
  .radio-cards {
    grid-template-columns: 1fr;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .metric-ribbon {
    grid-template-columns: repeat(3, 1fr);
  }
}