/* ═══════════════════════════════════════════════════════════════════════
   Glass Penetration Sandbox — Barrier Ballistics LE Decision Tool
   ═══════════════════════════════════════════════════════════════════════ */

.gps-sandbox {
  --gps-bg: #0d1117;
  --gps-surface: #161b22;
  --gps-border: #30363d;
  --gps-text: #e6edf3;
  --gps-text-muted: #8b949e;
  --gps-accent: #4a9eff;
  --gps-green: #00cc66;
  --gps-yellow: #ffaa00;
  --gps-red: #ff3333;
  --gps-orange: #ff8800;
  --gps-blue: #3b82f6;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--gps-text);
  padding: 12px 16px;
}

/* ── Header ─────────────────────────────────────────────────────────── */
.gps-header {
  text-align: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--gps-border);
}
.gps-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--gps-accent);
  margin: 0;
}
.gps-subtitle {
  font-size: 11px;
  color: var(--gps-text-muted);
  margin: 4px 0 0;
}

/* ── Main Layout ────────────────────────────────────────────────────── */
.gps-main {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}
.gps-form-panel {
  flex: 1;
  min-width: 0;
}
.gps-viz-panel {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

@media (max-width: 700px) {
  .gps-main {
    flex-direction: column;
  }
  .gps-viz-panel {
    order: -1;
  }
}

/* ── Form ───────────────────────────────────────────────────────────── */
.gps-form-section {
  margin-bottom: 10px;
}
.gps-form-row {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}
.gps-half { flex: 1; }
.gps-third { flex: 1; }

.gps-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--gps-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.gps-optional {
  font-weight: 400;
  text-transform: none;
  color: #555;
  font-size: 10px;
}
.gps-unit {
  font-weight: 400;
  text-transform: none;
  font-size: 10px;
}

.gps-select,
.gps-input {
  width: 100%;
  padding: 8px 10px;
  background: var(--gps-surface);
  border: 1px solid var(--gps-border);
  border-radius: 8px;
  color: var(--gps-text);
  font-size: 13px;
  box-sizing: border-box;
  -webkit-appearance: none;
  appearance: none;
}
.gps-select:focus,
.gps-input:focus {
  border-color: var(--gps-accent);
  outline: none;
}

.gps-slider {
  width: 100%;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 3px;
  background: var(--gps-border);
  outline: none;
}
.gps-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--gps-accent);
  cursor: pointer;
}
.gps-slider-value {
  text-align: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--gps-accent);
  margin-top: 2px;
}

.gps-glass-info,
.gps-bullet-info {
  font-size: 10px;
  color: var(--gps-text-muted);
  margin-top: 4px;
  padding: 4px 6px;
  background: rgba(74, 158, 255, 0.06);
  border-radius: 4px;
  line-height: 1.4;
  display: none;
}

.gps-policy-note {
  margin: -2px 0 8px;
  padding: 6px 8px;
  font-size: 10px;
  color: #7ea7d8;
  background: rgba(74, 158, 255, 0.08);
  border: 1px solid rgba(74, 158, 255, 0.18);
  border-radius: 6px;
}

.gps-viz-controls {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed rgba(255, 255, 255, 0.1);
}

.gps-viz-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.gps-viz-select {
  flex: 1;
}

.gps-btn-inline {
  flex: 0 0 auto;
  min-width: 136px;
  padding: 8px 10px;
  min-height: 40px;
  font-size: 11px;
}

/* ── Buttons ────────────────────────────────────────────────────────── */
.gps-form-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}
.gps-btn {
  flex: 1;
  padding: 12px 16px;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  text-transform: uppercase;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
}
.gps-btn-primary {
  background: var(--gps-accent);
  color: #000;
}
.gps-btn-primary:active {
  background: #3a8adf;
}
.gps-btn-secondary {
  background: var(--gps-surface);
  color: var(--gps-text-muted);
  border: 1px solid var(--gps-border);
}

/* ── SVG Container ──────────────────────────────────────────────────── */
.gps-svg-container {
  border: 1px solid var(--gps-border);
  border-radius: 10px;
  overflow: hidden;
  background: #0a0e14;
}
.gps-orthogonal-svg {
  display: block;
}

/* ── Results Panel ──────────────────────────────────────────────────── */
.gps-results-panel {
  background: var(--gps-surface);
  border: 1px solid var(--gps-border);
  border-radius: 10px;
  padding: 12px 16px;
}
.gps-results-placeholder {
  text-align: center;
  color: var(--gps-text-muted);
  font-size: 12px;
  padding: 20px 0;
}
.gps-error {
  color: var(--gps-red);
  text-align: center;
  padding: 16px;
}

/* ── Verdict Banner ─────────────────────────────────────────────────── */
.gps-verdict-banner {
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 12px;
  text-align: center;
}
.gps-verdict-label {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 2px;
}
.gps-verdict-go {
  background: rgba(0, 204, 102, 0.15);
  border: 1px solid var(--gps-green);
  color: var(--gps-green);
}
.gps-verdict-conditional-go {
  background: rgba(255, 170, 0, 0.15);
  border: 1px solid var(--gps-yellow);
  color: var(--gps-yellow);
}
.gps-verdict-no-go {
  background: rgba(255, 51, 51, 0.15);
  border: 1px solid var(--gps-red);
  color: var(--gps-red);
}

/* ── Results Grid ───────────────────────────────────────────────────── */
.gps-results-grid {
  display: flex;
  gap: 16px;
}
@media (max-width: 500px) {
  .gps-results-grid {
    flex-direction: column;
    gap: 8px;
  }
}
.gps-result-col {
  flex: 1;
}
.gps-col-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--gps-text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin: 0 0 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--gps-border);
}

.gps-result-row {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
  font-size: 12px;
  border-bottom: 1px solid rgba(48, 54, 61, 0.4);
}
.gps-result-label {
  color: var(--gps-text-muted);
}
.gps-result-value {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.gps-status-ok .gps-result-value { color: var(--gps-green); }
.gps-status-caution .gps-result-value { color: var(--gps-yellow); }
.gps-status-warn .gps-result-value { color: var(--gps-red); }

/* ── Go/No-Go Details ───────────────────────────────────────────────── */
.gps-gonogo-details {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 11px;
  line-height: 1.5;
}
.gps-gonogo-details.gps-verdict-go { background: rgba(0, 204, 102, 0.06); border: 1px solid rgba(0, 204, 102, 0.2); }
.gps-gonogo-details.gps-verdict-conditional-go { background: rgba(255, 170, 0, 0.06); border: 1px solid rgba(255, 170, 0, 0.2); }
.gps-gonogo-details.gps-verdict-no-go { background: rgba(255, 51, 51, 0.06); border: 1px solid rgba(255, 51, 51, 0.2); }

.gps-detail-title {
  font-weight: 700;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
  margin-top: 8px;
}
.gps-detail-title:first-child { margin-top: 0; }

.gps-gonogo-details ul {
  margin: 0;
  padding-left: 16px;
}
.gps-gonogo-details li {
  margin-bottom: 2px;
}

/* ── Warnings ───────────────────────────────────────────────────────── */
.gps-warnings {
  margin-top: 12px;
  padding: 10px 14px;
  background: rgba(255, 51, 51, 0.06);
  border: 1px solid rgba(255, 51, 51, 0.2);
  border-radius: 10px;
}
.gps-warning-item {
  font-size: 11px;
  color: var(--gps-orange);
  padding: 2px 0;
  line-height: 1.4;
}
.gps-warning-item::before {
  content: '! ';
  font-weight: 700;
}

/* ── Provenance Badge ──────────────────────────────────────────────── */
.gps-provenance-badge {
  border-left: 3px solid var(--gps-border);
  padding: 8px 12px;
  margin: 10px 0;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
}
.gps-provenance-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.gps-provenance-quality {
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.gps-provenance-band {
  color: var(--gps-text-muted);
  font-size: 10px;
}
.gps-provenance-sources,
.gps-provenance-note {
  color: #667788;
  font-size: 10px;
  margin-top: 3px;
}
.gps-provenance-note {
  font-style: italic;
  margin-top: 2px;
}
.gps-provenance-calibrated {
  color: var(--gps-blue);
  font-size: 10px;
  margin-top: 3px;
}

/* ── Computation Trace (collapsible) ───────────────────────────────── */
.gps-trace-panel {
  margin: 10px 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
}
.gps-trace-summary {
  padding: 8px 12px;
  cursor: pointer;
  color: var(--gps-text-muted);
  font-size: 11px;
  -webkit-user-select: none;
  user-select: none;
}
.gps-trace-body {
  padding: 8px 12px;
  font-family: monospace;
  font-size: 10px;
  color: #99aabb;
  line-height: 1.6;
}
.gps-trace-section {
  margin-bottom: 6px;
}
.gps-trace-label {
  color: var(--gps-accent);
  font-weight: 700;
}
.gps-trace-calibration {
  margin-top: 6px;
  color: var(--gps-blue);
}
.gps-trace-calibration strong {
  font-weight: 700;
}

/* ── Monte Carlo / Calibration Action Buttons ──────────────────────── */
.gps-action-row {
  margin: 10px 0;
  display: flex;
  gap: 8px;
}
.gps-action-row .gps-btn {
  font-size: 11px;
  padding: 10px 12px;
  min-height: 40px;
}

/* ── Monte Carlo Results ───────────────────────────────────────────── */
.gps-mc-results {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 10px 14px;
  margin: 6px 0;
  background: rgba(0, 0, 0, 0.2);
}
.gps-mc-title {
  font-weight: 600;
  color: var(--gps-accent);
  font-size: 11px;
  margin-bottom: 6px;
}
.gps-mc-verdict-bar {
  display: flex;
  height: 24px;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 8px;
}
.gps-mc-verdict-segment {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
}
.gps-mc-verdict-go { background: var(--gps-green); color: #000; }
.gps-mc-verdict-cond { background: var(--gps-yellow); color: #000; }
.gps-mc-verdict-nogo { background: var(--gps-red); color: #fff; }

.gps-mc-stats {
  font-size: 10px;
  color: var(--gps-text-muted);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 2px;
}
.gps-mc-stats-header {
  font-weight: 600;
  color: #667788;
}
.gps-mc-jitter {
  color: #556677;
  font-size: 9px;
  margin-top: 6px;
}

/* ── Calibration Form ──────────────────────────────────────────────── */
.gps-calibration-form {
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 8px;
  padding: 10px 14px;
  margin: 6px 0;
  background: rgba(59, 130, 246, 0.05);
}
.gps-calibration-title {
  font-weight: 600;
  color: var(--gps-blue);
  font-size: 11px;
  margin-bottom: 8px;
}
.gps-calibration-desc {
  font-size: 10px;
  color: #667788;
  margin-bottom: 8px;
  line-height: 1.4;
}
.gps-calibration-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
  margin-bottom: 8px;
}
.gps-calibration-label {
  font-size: 9px;
  color: var(--gps-text-muted);
  display: block;
  margin-bottom: 2px;
}
.gps-calibration-input {
  width: 100%;
  padding: 6px 8px;
  background: #0f1923;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #e0e8f0;
  border-radius: 6px;
  font-size: 12px;
  box-sizing: border-box;
}
.gps-calibration-input:focus {
  border-color: var(--gps-blue);
  outline: none;
}
.gps-calibration-notes {
  margin-bottom: 8px;
}
.gps-calibration-actions {
  display: flex;
  gap: 8px;
}
.gps-calibration-success {
  padding: 8px 12px;
  color: var(--gps-green);
  font-size: 11px;
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 8px;
  margin: 6px 0;
  line-height: 1.4;
}

/* ── Mobile Breakpoints ────────────────────────────────────────────── */
@media (max-width: 500px) {
  .gps-sandbox {
    padding: 10px 12px;
  }
  .gps-results-panel {
    padding: 10px 12px;
  }
  .gps-title {
    font-size: 15px;
    letter-spacing: 1px;
  }
  .gps-btn {
    min-height: 48px;
    font-size: 12px;
  }
  .gps-viz-row {
    flex-direction: column;
  }
  .gps-btn-inline {
    width: 100%;
    min-width: 0;
  }
  .gps-action-row .gps-btn {
    min-height: 44px;
    padding: 10px 8px;
  }
  .gps-calibration-grid {
    grid-template-columns: 1fr;
  }
  .gps-mc-stats {
    grid-template-columns: 1fr 1fr;
    gap: 4px;
  }
  .gps-provenance-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }
}