/* ═══════════════════════════════════════════════════════════════
   EQ2CAP Decision Lab — Framework Layout
   Three-panel Aladdin/Bloomberg-style layout
   LEFT  (inputs) │ CENTER (chart workspace) │ RIGHT (outputs)
   ═══════════════════════════════════════════════════════════════ */

/* ── Reset & Typography ─────────────────────────────── */
.lab-shell *, .lab-shell *::before, .lab-shell *::after { box-sizing: border-box; }

.lab-shell {
  display: grid;
  grid-template-columns: 320px 1fr 300px;
  grid-template-rows: auto 1fr;
  grid-template-areas:
    "header header header"
    "inputs center outputs";
  height: calc(100vh - 72px);   /* below site nav */
  background: var(--bg-primary, #050608);
  color: var(--text-primary, #E8E6E3);
  font-family: var(--font-body, 'Inter', system-ui, sans-serif);
  overflow: hidden;
}

/* ── Lab Header Bar ─────────────────────────────────── */
.lab-header {
  grid-area: header;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-secondary, #0A0C10);
  border-bottom: 1px solid var(--border, rgba(201,169,98,0.12));
}

.lab-header h1 {
  font-family: var(--font-heading, 'Cormorant Garamond', serif);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--gold, #C9A962);
  margin: 0;
  letter-spacing: 0.04em;
}

.lab-header .module-tag {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: rgba(201, 169, 98, 0.08);
  color: var(--gold, #C9A962);
  padding: 0.2em 0.8em;
  border-radius: 3px;
  border: 1px solid rgba(201, 169, 98, 0.15);
}

.lab-header .chapter-ref {
  margin-left: auto;
  font-size: 0.7rem;
  color: var(--text-muted, #6B6B6B);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

/* ── Left Panel — Inputs ────────────────────────────── */
.lab-inputs {
  grid-area: inputs;
  overflow-y: auto;
  padding: 1.25rem;
  background: var(--bg-secondary, #0A0C10);
  border-right: 1px solid var(--border, rgba(201,169,98,0.12));
}

.lab-inputs::-webkit-scrollbar { width: 4px; }
.lab-inputs::-webkit-scrollbar-thumb { background: rgba(201,169,98,0.2); border-radius: 2px; }

.input-section {
  margin-bottom: 1.5rem;
}

.input-section h3 {
  font-family: var(--font-heading, 'Cormorant Garamond', serif);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold, #C9A962);
  border-bottom: 1px solid rgba(201,169,98,0.12);
  padding-bottom: 0.4rem;
  margin-bottom: 0.8rem;
}

.input-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.input-row label {
  font-size: 0.78rem;
  color: var(--text-secondary, #9B9B9B);
  flex: 1;
}

.input-row input,
.input-row select {
  width: 140px;
  background: var(--bg-primary, #050608);
  border: 1px solid rgba(201,169,98,0.15);
  border-radius: 3px;
  color: var(--text-primary, #E8E6E3);
  padding: 0.35rem 0.6rem;
  font-size: 0.78rem;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  text-align: right;
  transition: border-color 0.2s;
}

.input-row input:focus,
.input-row select:focus {
  outline: none;
  border-color: var(--gold, #C9A962);
  box-shadow: 0 0 0 2px rgba(201,169,98,0.1);
}

.input-row input[type="range"] {
  width: 100px;
  margin-right: 0.5rem;
  accent-color: var(--gold, #C9A962);
}

.input-hint {
  font-size: 0.65rem;
  color: var(--text-muted, #6B6B6B);
  margin-top: 0.15rem;
  font-style: italic;
}

.btn-compute {
  display: block;
  width: 100%;
  padding: 0.7rem;
  margin-top: 1rem;
  background: linear-gradient(135deg, var(--gold, #C9A962), #A68838);
  color: #050608;
  border: none;
  border-radius: 4px;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  text-transform: uppercase;
  transition: opacity 0.2s, transform 0.1s;
}

.btn-compute:hover { opacity: 0.9; }
.btn-compute:active { transform: scale(0.98); }

.btn-reset {
  display: block;
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.5rem;
  background: transparent;
  border: 1px solid rgba(201,169,98,0.2);
  border-radius: 4px;
  color: var(--text-muted, #6B6B6B);
  font-size: 0.72rem;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.btn-reset:hover { border-color: var(--gold, #C9A962); color: var(--gold, #C9A962); }

/* ── Center Panel — Charts ──────────────────────────── */
.lab-center {
  grid-area: center;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 1rem;
}

.chart-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 0.8rem;
  border-bottom: 1px solid var(--border, rgba(201,169,98,0.12));
}

.chart-tab {
  padding: 0.5rem 1.2rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted, #6B6B6B);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  font-family: var(--font-body, 'Inter', sans-serif);
}

.chart-tab:hover { color: var(--text-secondary, #9B9B9B); }

.chart-tab.active {
  color: var(--gold, #C9A962);
  border-bottom-color: var(--gold, #C9A962);
}

.chart-area {
  flex: 1;
  position: relative;
  min-height: 0;
}

.chart-pane {
  display: none;
  width: 100%;
  height: 100%;
}

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

.chart-pane canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ── Right Panel — Outputs ──────────────────────────── */
.lab-outputs {
  grid-area: outputs;
  overflow-y: auto;
  padding: 1.25rem;
  background: var(--bg-secondary, #0A0C10);
  border-left: 1px solid var(--border, rgba(201,169,98,0.12));
}

.lab-outputs::-webkit-scrollbar { width: 4px; }
.lab-outputs::-webkit-scrollbar-thumb { background: rgba(201,169,98,0.2); border-radius: 2px; }

.output-section {
  margin-bottom: 1.5rem;
}

.output-section h3 {
  font-family: var(--font-heading, 'Cormorant Garamond', serif);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold, #C9A962);
  border-bottom: 1px solid rgba(201,169,98,0.12);
  padding-bottom: 0.4rem;
  margin-bottom: 0.8rem;
}

.output-kpi {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.output-kpi .kpi-label {
  font-size: 0.72rem;
  color: var(--text-muted, #6B6B6B);
}

.output-kpi .kpi-value {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.82rem;
  color: var(--text-primary, #E8E6E3);
  text-align: right;
}

.output-kpi .kpi-value.positive { color: #5ec269; }
.output-kpi .kpi-value.negative { color: #e05555; }
.output-kpi .kpi-value.gold { color: var(--gold, #C9A962); }

/* ── Heatmap Grid ───────────────────────────────────── */
.heatmap-container {
  width: 100%;
  overflow-x: auto;
  margin-top: 0.5rem;
}

.heatmap-grid {
  display: grid;
  gap: 1px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.62rem;
}

.heatmap-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.3rem 0.15rem;
  color: #fff;
  border-radius: 1px;
  min-width: 48px;
  line-height: 1.2;
  text-shadow: 0 0 2px rgba(0,0,0,0.6);
}

.heatmap-cell.header {
  background: transparent;
  color: var(--text-muted, #6B6B6B);
  font-weight: 600;
  text-shadow: none;
}

/* ── Weight / Bar Charts ────────────────────────────── */
.weight-bars {
  margin-top: 0.5rem;
}

.weight-bar {
  display: flex;
  align-items: center;
  margin-bottom: 0.4rem;
  gap: 0.5rem;
}

.weight-bar .bar-label {
  flex: 0 0 60px;
  font-size: 0.7rem;
  color: var(--text-secondary, #9B9B9B);
  text-align: right;
}

.weight-bar .bar-track {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.04);
  border-radius: 3px;
  overflow: hidden;
}

.weight-bar .bar-fill {
  height: 100%;
  background: var(--gold, #C9A962);
  border-radius: 3px;
  transition: width 0.5s ease;
}

.weight-bar .bar-value {
  flex: 0 0 42px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.68rem;
  color: var(--text-primary, #E8E6E3);
}

/* ── Equation Display ───────────────────────────────── */
.equation-display {
  background: rgba(201,169,98,0.04);
  border: 1px solid rgba(201,169,98,0.1);
  border-radius: 4px;
  padding: 0.8rem 1rem;
  margin: 0.8rem 0;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.72rem;
  color: var(--gold, #C9A962);
  text-align: center;
  line-height: 1.6;
  letter-spacing: 0.02em;
  overflow-x: auto;
}

/* ── Citation Badge ─────────────────────────────────── */
.citation-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.6rem;
  background: rgba(201,169,98,0.06);
  border: 1px solid rgba(201,169,98,0.12);
  border-radius: 3px;
  font-size: 0.62rem;
  color: var(--text-muted, #6B6B6B);
  margin-right: 0.3rem;
  margin-bottom: 0.3rem;
}

.citation-badge::before {
  content: '§';
  color: var(--gold, #C9A962);
  font-weight: 700;
}

/* ── Terminal/Log Block ─────────────────────────────── */
.terminal-block {
  background: #0C0E12;
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 3px;
  padding: 0.6rem 0.8rem;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.68rem;
  color: #5ec269;
  line-height: 1.5;
  max-height: 180px;
  overflow-y: auto;
  white-space: pre-wrap;
}

/* ── Nav Bar (module navigation) ────────────────────── */
.lab-nav {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg-secondary, #0A0C10);
  border-bottom: 1px solid var(--border, rgba(201,169,98,0.12));
  padding: 0 1rem;
  height: 42px;
  overflow-x: auto;
}

.lab-nav a {
  padding: 0.5rem 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted, #6B6B6B);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
}

.lab-nav a:hover { color: var(--text-secondary, #9B9B9B); }
.lab-nav a.active {
  color: var(--gold, #C9A962);
  border-bottom-color: var(--gold, #C9A962);
}

.lab-nav .nav-brand {
  font-family: var(--font-heading, 'Cormorant Garamond', serif);
  font-size: 0.82rem;
  color: var(--gold, #C9A962);
  margin-right: 1.5rem;
  letter-spacing: 0.06em;
}

/* ── Correlation Matrix Editor ──────────────────────── */
.corr-matrix {
  display: grid;
  gap: 2px;
  margin-top: 0.5rem;
}

.corr-cell {
  width: 100%;
  background: var(--bg-primary, #050608);
  border: 1px solid rgba(201,169,98,0.1);
  border-radius: 2px;
  color: var(--text-primary, #E8E6E3);
  padding: 0.25rem;
  font-size: 0.68rem;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  text-align: center;
}

.corr-cell:focus {
  border-color: var(--gold, #C9A962);
  outline: none;
}

.corr-cell.diagonal {
  background: rgba(201,169,98,0.08);
  color: var(--gold, #C9A962);
}

.corr-cell.header {
  background: transparent;
  border: none;
  color: var(--text-muted, #6B6B6B);
  font-weight: 600;
}

/* ── Scenario Cards ─────────────────────────────────── */
.scenario-card {
  background: rgba(201,169,98,0.04);
  border: 1px solid rgba(201,169,98,0.1);
  border-radius: 4px;
  padding: 0.6rem 0.8rem;
  margin-bottom: 0.5rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.scenario-card:hover {
  border-color: rgba(201,169,98,0.3);
}

.scenario-card.selected {
  border-color: var(--gold, #C9A962);
  background: rgba(201,169,98,0.08);
}

.scenario-card .scenario-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary, #E8E6E3);
  margin-bottom: 0.2rem;
}

.scenario-card .scenario-desc {
  font-size: 0.65rem;
  color: var(--text-muted, #6B6B6B);
}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 1200px) {
  .lab-shell {
    grid-template-columns: 280px 1fr 260px;
  }
}

@media (max-width: 960px) {
  .lab-shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto 1fr auto;
    grid-template-areas:
      "header"
      "inputs"
      "center"
      "outputs";
    height: auto;
    min-height: 100vh;
  }

  .lab-inputs, .lab-outputs {
    border-right: none;
    border-left: none;
    border-bottom: 1px solid var(--border, rgba(201,169,98,0.12));
    max-height: 300px;
  }

  .lab-center { min-height: 400px; }
}

@media (max-width: 640px) {
  .lab-header h1 { font-size: 1rem; }
  .lab-header .chapter-ref { display: none; }
  .input-row input, .input-row select { width: 110px; }
  .lab-nav a { padding: 0.4rem 0.6rem; font-size: 0.64rem; }
}