:root {
  --bg-core: #090d16;
  --bg-surface: #0f172a;
  --bg-surface-elevated: #162036;
  --bg-terminal: #05080e;
  --border-subtle: #1e293b;
  --border-active: #334155;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent-cyan: #06b6d4;
  --accent-cyan-dim: rgba(6, 182, 212, 0.12);
  --accent-emerald: #10b981;
  --accent-emerald-dim: rgba(16, 185, 129, 0.12);
  --accent-amber: #f59e0b;
  --accent-amber-dim: rgba(245, 158, 11, 0.12);
  --accent-purple: #a855f7;
  --accent-purple-dim: rgba(168, 85, 247, 0.12);
  --accent-red: #ef4444;
  --accent-red-dim: rgba(239, 68, 68, 0.12);
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", Menlo, Consolas, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
  background-color: var(--bg-core);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Header bar */
.top-header {
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

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

.brand-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 4px 8px;
  border-radius: 3px;
  background: var(--accent-cyan-dim);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.brand-title {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.01em;
}

.meta-stats {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
}

.stat-val {
  color: #fff;
  font-weight: 600;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  display: inline-block;
}

/* Action Banner */
.action-banner {
  background: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.banner-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.banner-desc {
  font-size: 13px;
  color: var(--text-muted);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn:hover {
  background: var(--border-active);
  border-color: var(--text-muted);
}

.btn-primary {
  background: var(--accent-cyan);
  color: #03131a;
  border-color: var(--accent-cyan);
  font-weight: 700;
}

.btn-primary:hover {
  background: #22d3ee;
  border-color: #22d3ee;
}

.btn-emerald {
  color: var(--accent-emerald);
  border-color: rgba(16, 185, 129, 0.4);
  background: var(--accent-emerald-dim);
}

.btn-emerald:hover {
  background: rgba(16, 185, 129, 0.25);
}

.btn-amber {
  color: var(--accent-amber);
  border-color: rgba(245, 158, 11, 0.4);
  background: var(--accent-amber-dim);
}

.btn-amber:hover {
  background: rgba(245, 158, 11, 0.25);
}

.btn-purple {
  color: var(--accent-purple);
  border-color: rgba(168, 85, 247, 0.4);
  background: var(--accent-purple-dim);
}

.btn-purple:hover {
  background: rgba(168, 85, 247, 0.25);
}

.btn-red {
  color: var(--accent-red);
  border-color: rgba(239, 68, 68, 0.4);
  background: var(--accent-red-dim);
}

.btn-red:hover {
  background: rgba(239, 68, 68, 0.25);
}

/* Layout */
.main-container {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 0;
  min-height: calc(100vh - 110px);
}

.lab-panels {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
}

/* Cards & Panel Styling */
.panel-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  overflow: hidden;
}

.panel-header {
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-tag-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.panel-id {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 3px;
  letter-spacing: 0.05em;
}

.tag-cyan { background: var(--accent-cyan-dim); color: var(--accent-cyan); border: 1px solid rgba(6, 182, 212, 0.3); }
.tag-amber { background: var(--accent-amber-dim); color: var(--accent-amber); border: 1px solid rgba(245, 158, 11, 0.3); }
.tag-emerald { background: var(--accent-emerald-dim); color: var(--accent-emerald); border: 1px solid rgba(16, 185, 129, 0.3); }
.tag-purple { background: var(--accent-purple-dim); color: var(--accent-purple); border: 1px solid rgba(168, 85, 247, 0.3); }
.tag-red { background: var(--accent-red-dim); color: var(--accent-red); border: 1px solid rgba(239, 68, 68, 0.3); }

.panel-title {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
}

.panel-body {
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.param-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

.param-block {
  background: var(--bg-core);
  border: 1px solid var(--border-subtle);
  padding: 8px 12px;
  border-radius: 4px;
}

.param-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.param-value {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-main);
  word-break: break-all;
}

.hex-box {
  color: var(--accent-cyan);
}

.cli-hint {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-core);
  border: 1px solid var(--border-subtle);
  padding: 8px 12px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cli-code {
  color: #38bdf8;
}

/* Sidebar Console */
.sidebar-terminal {
  border-left: 1px solid var(--border-subtle);
  background: var(--bg-terminal);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: sticky;
  top: 57px;
  max-height: calc(100vh - 57px);
}

.term-header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.term-title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.term-body {
  flex: 1;
  overflow-y: auto;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: #cbd5e1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.term-line {
  word-break: break-all;
  display: flex;
  flex-direction: column;
  border-left: 2px solid var(--border-subtle);
  padding-left: 8px;
}

.term-line-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 10.5px;
  color: var(--text-dim);
}

.term-tag {
  font-weight: 700;
  padding: 1px 4px;
  border-radius: 2px;
  font-size: 10px;
}

.term-tag-crypto { color: var(--accent-cyan); background: var(--accent-cyan-dim); }
.term-tag-strings { color: var(--accent-purple); background: var(--accent-purple-dim); }
.term-tag-vm { color: var(--accent-amber); background: var(--accent-amber-dim); }
.term-tag-flow { color: var(--accent-emerald); background: var(--accent-emerald-dim); }
.term-tag-pack { color: #f43f5e; background: rgba(244, 63, 94, 0.12); }
.term-tag-hls { color: #3b82f6; background: rgba(59, 130, 246, 0.12); }

.term-payload {
  color: #e2e8f0;
  margin-top: 2px;
}

@media (max-width: 960px) {
  .main-container {
    grid-template-columns: 1fr;
  }
  .sidebar-terminal {
    border-left: none;
    border-top: 1px solid var(--border-subtle);
    max-height: 400px;
    position: static;
  }
}