/* Open Agentic Workbench — Reader Shell & Design System */

:root {
  --bg-primary: #0f172a;
  --bg-surface: #1e293b;
  --bg-elevated: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-cyan: #38bdf8;
  --accent-blue: #3b82f6;
  --border-subtle: #334155;
  --font-sans: system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  display: flex;
  min-height: 100vh;
}

/* Nav Rail */
.app-rail {
  width: 260px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.brand-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: -0.02em;
}

.nav-section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.edition-select, .track-select, .chapter-select {
  width: 100%;
  padding: 0.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
}

.compare-btn {
  padding: 0.6rem 1rem;
  background: var(--accent-blue);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: opacity 0.15s;
}

.compare-btn:hover { opacity: 0.9; }

/* Main Reading Pane */
.main-pane {
  flex: 1;
  padding: 2rem 4rem;
  max-width: 960px;
  margin: 0 auto;
}

.monograph-content [data-block-id] {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.monograph-content [data-block-id]:hover .block-gutter-btn {
  opacity: 1;
}

.block-gutter-btn {
  position: absolute;
  left: 0;
  top: 0.2rem;
  width: 1.2rem;
  height: 1.2rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  color: var(--accent-cyan);
  font-size: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s;
}

/* Three Lens Directive */
.three-lens-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 6px;
  padding: 1.25rem;
  margin: 1.5rem 0;
}

.three-lens-badge, .state00-badge, .wb-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.three-lens-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.lens-card {
  background: var(--bg-elevated);
  border-radius: 4px;
  padding: 0.75rem;
}

.lens-header { font-weight: 700; margin-bottom: 0.25rem; color: #38bdf8; font-size: 0.85rem; }
.lens-body { font-size: 0.85rem; color: var(--text-secondary); }

/* State 00 Directive */
.state00-container {
  background: #1e1b4b;
  border: 1px solid #3730a3;
  border-left: 4px solid #818cf8;
  border-radius: 6px;
  padding: 1.25rem;
  margin: 1.5rem 0;
}

.state00-badge { color: #a5b4fc; }

/* Interactive Workbench */
.wb-frame {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 1.25rem;
  margin: 2rem 0;
}

.wb-title { margin-bottom: 0.5rem; font-size: 1.1rem; }
.wb-notice, .wb-challenge { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.5rem; }
.wb-presets-bar { display: flex; gap: 0.5rem; margin: 1rem 0; align-items: center; }
.wb-presets-label { font-size: 0.8rem; font-weight: 700; }
.wb-preset-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.35rem 0.75rem;
  border-radius: 4px;
  font-size: 0.8rem;
  cursor: pointer;
}
.wb-canvas { width: 100%; border-radius: 4px; display: block; background: #0b0f17; }
.wb-telemetry-container {
  margin-top: 0.75rem;
  background: #0b0f17;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 0.4rem 0.6rem;
  overflow-x: auto;
}
.wb-telemetry-table {
  width: 100%;
  border-collapse: collapse;
}
.wb-telemetry-cell {
  padding: 0.4rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  vertical-align: top;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}
.wb-telemetry-cell:last-child { border-right: none; }
.wb-telemetry-label {
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.15rem;
}
.wb-telemetry-val {
  color: var(--accent-cyan);
  font-weight: 600;
}
.wb-select-ctrl {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.4rem 0.6rem;
  border-radius: 4px;
  font-size: 0.85rem;
  outline: none;
}
.wb-select-ctrl:focus { border-color: var(--accent-cyan); }

/* Diff Viewer */
.diff-table { width: 100%; border-collapse: collapse; margin-top: 1rem; }
.diff-table th, .diff-table td { padding: 0.75rem; border: 1px solid var(--border-subtle); font-size: 0.85rem; vertical-align: top; }
.diff-status-added { background: rgba(34, 197, 94, 0.1); }
.diff-status-modified { background: rgba(56, 189, 248, 0.1); }
.diff-status-removed { background: rgba(239, 68, 68, 0.1); }
.badge.added { color: #4ade80; }
.badge.modified { color: #38bdf8; }
.badge.removed { color: #f87171; }

/* Slide-Over Drawer */
.oaw-suggestion-drawer-container.hidden { display: none; }
.oaw-suggestion-drawer-container.visible { display: block; }
.drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 999; }
.drawer-panel {
  position: fixed; right: 0; top: 0; bottom: 0; width: 500px;
  background: var(--bg-surface); z-index: 1000; padding: 1.5rem;
  display: flex; flex-direction: column; gap: 1rem; box-shadow: -4px 0 24px rgba(0,0,0,0.5);
  overflow-y: auto;
}
.drawer-header { display: flex; justify-content: space-between; align-items: flex-start; }
.drawer-badge { font-size: 0.7rem; font-weight: 700; color: var(--accent-cyan); }
.drawer-close-btn { background: none; border: none; font-size: 1.5rem; color: var(--text-muted); cursor: pointer; }
.drawer-field { display: flex; flex-direction: column; gap: 0.4rem; font-size: 0.85rem; }
.drawer-textarea, .drawer-input {
  background: var(--bg-primary); border: 1px solid var(--border-subtle);
  color: var(--text-primary); border-radius: 4px; padding: 0.6rem; font-family: var(--font-mono); font-size: 0.85rem;
}
.drawer-code-preview, .drawer-suggestion-preview {
  background: var(--bg-primary); border: 1px solid var(--border-subtle);
  border-radius: 4px; padding: 0.6rem; font-family: var(--font-mono); font-size: 0.8rem; overflow-x: auto;
}
.drawer-footer { display: flex; gap: 0.75rem; margin-top: auto; padding-top: 1rem; }
.drawer-btn { flex: 1; padding: 0.6rem; border-radius: 4px; border: none; cursor: pointer; font-weight: 600; font-size: 0.85rem; }
.btn-primary { background: var(--accent-blue); color: white; }
.btn-secondary { background: var(--bg-elevated); color: var(--text-primary); border: 1px solid var(--border-subtle); }

/* Circuit Scope Workbench UI */
.circuit-workbench-frame {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  margin: 1.5rem 0;
  overflow: hidden;
}
.cwb-header {
  padding: 0.6rem 1rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.cwb-badge {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.12);
  padding: 2px 8px;
  border-radius: 4px;
}
.cwb-title { margin: 0; font-size: 0.9rem; color: var(--text-primary); }
.cwb-panes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 1rem;
  background: #090d16;
}
@media (max-width: 900px) {
  .cwb-panes { grid-template-columns: 1fr; }
}
.cwb-pane-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.cwb-schematic-container {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #0f172a;
  border: 1px solid #1e293b;
  border-radius: 6px;
  padding: 0.5rem;
}
.circuit-schematic-svg { width: 100%; height: auto; max-height: 240px; }
.cwb-scope-canvas {
  width: 100%;
  height: auto;
  max-height: 240px;
  border: 1px solid #1e293b;
  border-radius: 6px;
  background: #090d16;
  cursor: crosshair;
}
.cwb-controls-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  padding: 0.65rem 1rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-subtle);
  align-items: center;
}
.cwb-control-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.cwb-control-group label {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  color: var(--text-muted);
}
.cwb-control-group label span {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-weight: 600;
}
.cwb-control-group input[type="range"] {
  width: 130px;
  accent-color: var(--accent-cyan);
}
.cwb-btn-run {
  padding: 0.35rem 0.9rem;
  border-radius: 4px;
  border: 1px solid var(--accent-cyan);
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-cyan);
  font-weight: 600;
  cursor: pointer;
}
.test-point-badge { transition: transform 0.15s ease; }
.test-point-badge:hover { transform: scale(1.1); }