/* ===== HE-FARM D4.8 Biosecurity Wizard — Stylesheet =====
   Lightweight, accessible, print-friendly.
   No frameworks; vanilla CSS with custom properties.
   ======================================================== */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --clr-primary: #1a6b3c;
  --clr-primary-light: #e8f5ed;
  --clr-primary-dark: #0e4424;
  --clr-accent: #d4880f;
  --clr-accent-light: #fff5e0;
  --clr-danger: #c0392b;
  --clr-danger-light: #fde8e5;
  --clr-text: #1a1a2e;
  --clr-text-light: #555;
  --clr-bg: #f7f8fa;
  --clr-surface: #ffffff;
  --clr-border: #d8dce3;
  --clr-critical: #c0392b;
  --clr-elevated: #e67e22;
  --clr-moderate: #27ae60;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  --mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

html { font-size: 15px; }
body {
  font-family: var(--font);
  color: var(--clr-text);
  background: var(--clr-bg);
  line-height: 1.6;
  min-height: 100vh;
}

/* --- Header --- */
.app-header {
  background: var(--clr-primary);
  color: #fff;
  padding: 1rem 1.5rem 0;
}
.header-inner { max-width: 1100px; margin: 0 auto; }
.app-header h1 { font-size: 1.4rem; font-weight: 700; }
.app-header .subtitle { font-weight: 400; opacity: 0.85; }
.app-header .tagline { font-size: 0.8rem; opacity: 0.7; margin-top: 0.15rem; }

/* Step nav */
.step-nav {
  display: flex; gap: 0; max-width: 1100px; margin: 0.75rem auto 0;
}
.step-tab {
  flex: 1; padding: 0.6rem 0.5rem; border: none; background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.65); font-size: 0.82rem; cursor: pointer;
  border-radius: var(--radius) var(--radius) 0 0; transition: all 0.2s;
  font-family: var(--font);
}
.step-tab:disabled { opacity: 0.4; cursor: not-allowed; }
.step-tab.active { background: var(--clr-bg); color: var(--clr-primary); font-weight: 600; }
.step-tab:not(:disabled):hover { background: rgba(255,255,255,0.25); }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.4em; height: 1.4em; border-radius: 50%; background: rgba(255,255,255,0.2);
  font-size: 0.75rem; margin-right: 0.3rem; font-weight: 700;
}
.step-tab.active .step-num { background: var(--clr-primary); color: #fff; }

/* --- Screens --- */
.screen { display: none; }
.screen.active { display: block; }
.screen-inner { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }
.screen-desc { color: var(--clr-text-light); margin-bottom: 1.25rem; font-size: 0.9rem; }

/* --- Forms --- */
.form-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
}
.form-group { display: flex; flex-direction: column; }
.form-group.full-width { grid-column: 1 / -1; }
.form-group label { font-weight: 600; font-size: 0.82rem; margin-bottom: 0.3rem; }
.optional { font-weight: 400; color: var(--clr-text-light); font-size: 0.78rem; }

input[type="text"], input[type="number"], select {
  padding: 0.55rem 0.75rem; border: 1px solid var(--clr-border);
  border-radius: var(--radius); font-size: 0.9rem; font-family: var(--font);
  background: var(--clr-surface); transition: border 0.2s;
}
input:focus, select:focus { outline: none; border-color: var(--clr-primary); box-shadow: 0 0 0 3px var(--clr-primary-light); }

.checkbox-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 0.4rem;
}
.checkbox-grid label { font-weight: 400; font-size: 0.85rem; cursor: pointer; display: flex; align-items: center; gap: 0.4rem; }
.checkbox-grid input { accent-color: var(--clr-primary); }

.radio-group { display: flex; flex-direction: column; gap: 0.5rem; }
.radio-label { font-weight: 400; font-size: 0.85rem; cursor: pointer; display: flex; align-items: baseline; gap: 0.4rem; }
.radio-label input { accent-color: var(--clr-primary); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.6rem 1.4rem; border: none; border-radius: var(--radius);
  font-size: 0.9rem; font-weight: 600; cursor: pointer; transition: all 0.2s;
  font-family: var(--font);
}
.btn-primary { background: var(--clr-primary); color: #fff; }
.btn-primary:hover { background: var(--clr-primary-dark); }
.btn-secondary { background: var(--clr-accent); color: #fff; }
.btn-secondary:hover { opacity: 0.9; }
.btn-ghost { background: transparent; color: var(--clr-primary); border: 1px solid var(--clr-border); }
.btn-ghost:hover { background: var(--clr-primary-light); }
.btn-sm { padding: 0.35rem 0.8rem; font-size: 0.82rem; }
.btn-danger { background: var(--clr-danger); color: #fff; }
.btn-danger:hover { opacity: 0.9; }

.screen-actions { display: flex; gap: 0.75rem; margin-top: 1.5rem; flex-wrap: wrap; }

/* --- Badge --- */
.badge {
  display: inline-block; padding: 0.15rem 0.5rem; font-size: 0.7rem;
  background: var(--clr-accent-light); color: var(--clr-accent); border-radius: 12px;
  font-weight: 600; vertical-align: middle;
}

/* --- Workflow list (Screen 2) --- */
.workflow-controls { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.legend { display: flex; gap: 1rem; font-size: 0.78rem; color: var(--clr-text-light); margin-left: auto; }
.legend-item { display: flex; align-items: center; gap: 0.3rem; }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-critical { background: var(--clr-critical); }
.dot-elevated { background: var(--clr-elevated); }
.dot-moderate { background: var(--clr-moderate); }

.workflow-list { display: flex; flex-direction: column; gap: 0.6rem; }

.wf-step {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); padding: 0.9rem 1rem; box-shadow: var(--shadow);
  border-left: 4px solid var(--clr-moderate); transition: border-color 0.3s;
}
.wf-step.critical { border-left-color: var(--clr-critical); }
.wf-step.elevated { border-left-color: var(--clr-elevated); }

.wf-step-header {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 0.5rem;
}
.wf-step-title { font-weight: 600; font-size: 0.92rem; }
.wf-step-score {
  font-family: var(--mono); font-size: 0.8rem; padding: 0.15rem 0.5rem;
  border-radius: 4px; background: var(--clr-bg); white-space: nowrap;
}
.wf-step-desc { font-size: 0.8rem; color: var(--clr-text-light); margin: 0.25rem 0 0.6rem; }

.slider-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.75rem; }
.slider-group { display: flex; flex-direction: column; }
.slider-group label { font-size: 0.75rem; font-weight: 600; color: var(--clr-text-light); margin-bottom: 0.2rem; }
.slider-group .slider-val { font-size: 0.75rem; color: var(--clr-primary); font-weight: 700; text-align: right; }
.slider-group input[type="range"] { width: 100%; accent-color: var(--clr-primary); }
.slider-label-row { display: flex; justify-content: space-between; align-items: center; }

.wf-step-actions { margin-top: 0.5rem; text-align: right; }
.btn-remove { background: none; border: none; color: var(--clr-danger); font-size: 0.78rem; cursor: pointer; padding: 0.2rem 0.5rem; }
.btn-remove:hover { text-decoration: underline; }

/* --- Risk summary panels --- */
.risk-summary {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.5rem;
}
.risk-panel {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow);
}
.risk-panel h3 { font-size: 0.95rem; margin-bottom: 0.3rem; }
.risk-panel-desc { font-size: 0.78rem; color: var(--clr-text-light); margin-bottom: 0.6rem; }

.risk-bar-item { margin-bottom: 0.5rem; }
.risk-bar-label { font-size: 0.78rem; display: flex; justify-content: space-between; margin-bottom: 0.15rem; }
.risk-bar-track {
  height: 14px; background: #eee; border-radius: 7px; overflow: hidden; position: relative;
}
.risk-bar-fill {
  height: 100%; border-radius: 7px; transition: width 0.5s ease;
}
.risk-bar-fill.critical { background: var(--clr-critical); }
.risk-bar-fill.elevated { background: var(--clr-elevated); }
.risk-bar-fill.moderate { background: var(--clr-moderate); }

/* --- Modal --- */
.modal-overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.35);
  z-index: 100; justify-content: center; align-items: center;
}
.modal-overlay.visible { display: flex; }
.modal {
  background: var(--clr-surface); border-radius: var(--radius); padding: 1.5rem;
  min-width: 340px; max-width: 90vw; box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}
.modal h3 { margin-bottom: 0.5rem; }
.modal select { width: 100%; margin: 0.5rem 0; }
.modal-actions { display: flex; gap: 0.5rem; justify-content: flex-end; margin-top: 0.75rem; }

/* --- Intervention list (Screen 3) --- */
.bundle-tabs { display: flex; gap: 0; margin-bottom: 1rem; border-bottom: 2px solid var(--clr-border); }
.bundle-tab {
  padding: 0.5rem 1.2rem; border: none; background: none; cursor: pointer;
  font-size: 0.85rem; font-weight: 500; color: var(--clr-text-light);
  border-bottom: 2px solid transparent; margin-bottom: -2px;
  font-family: var(--font); transition: all 0.2s;
}
.bundle-tab.active { color: var(--clr-primary); border-bottom-color: var(--clr-primary); font-weight: 700; }
.bundle-tab:hover { color: var(--clr-primary); }

.intervention-list { display: flex; flex-direction: column; gap: 0.75rem; }

.int-card {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow);
}
.int-card.selected { border-color: var(--clr-primary); background: var(--clr-primary-light); }
.int-card.hefarm-tech { border-left: 4px solid var(--clr-accent); }

.int-card-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 0.5rem; }
.int-card-title { font-weight: 600; font-size: 0.92rem; }
.int-card-badges { display: flex; gap: 0.3rem; flex-wrap: wrap; }
.effort-badge {
  font-size: 0.7rem; padding: 0.1rem 0.45rem; border-radius: 10px; font-weight: 600;
}
.effort-low { background: #e8f5ed; color: #1a6b3c; }
.effort-medium { background: #fff5e0; color: #b87a00; }
.effort-high { background: #fde8e5; color: #c0392b; }
.tech-badge { background: var(--clr-accent-light); color: var(--clr-accent); font-size: 0.7rem; padding: 0.1rem 0.45rem; border-radius: 10px; font-weight: 600; }

.int-card-body { margin-top: 0.5rem; font-size: 0.84rem; }
.int-card-body p { margin-bottom: 0.35rem; }

.efficacy-range { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin: 0.4rem 0; cursor: help; }
.efficacy-bar-track {
  flex: 1; height: 12px; background: #eee; border-radius: 6px; position: relative;
}
.efficacy-bar-range {
  position: absolute; height: 100%; border-radius: 6px; background: var(--clr-primary);
  opacity: 0.25;
}
.efficacy-bar-base {
  position: absolute; height: 100%; width: 3px; background: var(--clr-primary);
  border-radius: 2px; top: 0;
}
.efficacy-label { font-size: 0.75rem; font-family: var(--mono); min-width: 90px; }

.int-why {
  background: var(--clr-primary-light); border-radius: 4px; padding: 0.5rem 0.7rem;
  font-size: 0.8rem; margin-top: 0.5rem; color: var(--clr-primary-dark);
}
.int-why strong { font-weight: 700; }

.int-monitoring { margin-top: 0.4rem; }
.int-monitoring summary { font-size: 0.8rem; cursor: pointer; color: var(--clr-text-light); }
.int-monitoring ul { font-size: 0.78rem; padding-left: 1.3rem; margin-top: 0.2rem; }

.int-prereqs { font-size: 0.78rem; color: var(--clr-accent); margin-top: 0.3rem; }

.int-card-footer { display: flex; justify-content: flex-end; margin-top: 0.6rem; }
.btn-select {
  padding: 0.3rem 0.8rem; border: 1px solid var(--clr-primary); border-radius: var(--radius);
  background: transparent; color: var(--clr-primary); cursor: pointer; font-size: 0.8rem;
  font-weight: 600; transition: all 0.2s; font-family: var(--font);
}
.btn-select:hover, .btn-select.active { background: var(--clr-primary); color: #fff; }

/* --- Transport Impact Preview (Screen 3) --- */
.impact-preview {
  background: var(--clr-surface);
  border: 2px solid var(--clr-primary);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-top: 1.5rem;
  box-shadow: var(--shadow);
}
.impact-preview h3 { font-size: 1rem; margin-bottom: 0.25rem; color: var(--clr-primary); }
.impact-desc { font-size: 0.78rem; color: var(--clr-text-light); margin-bottom: 0.75rem; }

.impact-bar-item { margin-bottom: 0.6rem; }
.impact-bar-label {
  font-size: 0.8rem; font-weight: 600; display: flex;
  justify-content: space-between; margin-bottom: 0.15rem;
}
.impact-reduction {
  color: var(--clr-primary); font-family: var(--mono); font-weight: 700;
}
.impact-bar-container {
  height: 16px; background: #eee; border-radius: 8px;
  overflow: hidden; position: relative;
}
.impact-bar-before {
  position: absolute; height: 100%; background: var(--clr-danger);
  opacity: 0.2; border-radius: 8px;
}
.impact-bar-after {
  position: absolute; height: 100%; background: var(--clr-primary);
  opacity: 0.6; border-radius: 8px; transition: width 0.4s ease;
}
.impact-bar-values {
  display: flex; gap: 0.3rem; font-size: 0.72rem; font-family: var(--mono);
  color: var(--clr-text-light); margin-top: 0.1rem;
}
.val-before { color: var(--clr-danger); text-decoration: line-through; }
.val-after { color: var(--clr-primary); font-weight: 700; }
.val-arrow { color: var(--clr-text-light); }

.step-impact-list { margin-top: 0.5rem; }
.impact-preview h4 { font-size: 0.88rem; margin-top: 1rem; margin-bottom: 0.35rem; }
.step-impact-item {
  display: flex; justify-content: space-between;
  font-size: 0.82rem; padding: 0.2rem 0;
  border-bottom: 1px solid var(--clr-bg);
}
.step-impact-item .step-name { font-weight: 500; }
.step-impact-item .step-reduction { font-family: var(--mono); }
.step-impact-item em { color: var(--clr-primary); font-style: normal; font-weight: 700; }

/* D1.3 measure tags */
.measure-tags { margin-top: 0.25rem; }
.measure-tag {
  font-size: 0.72rem; background: #e8f0fe; border-radius: 3px;
  padding: 1px 5px; margin: 1px 2px; display: inline-block;
  font-family: var(--mono); color: #1a4d8c;
}
.measure-tag.fallback {
  border: 1px dashed #999; background: #f5f5f5; color: #666;
}
.measure-tag.hefarm {
  background: #fff3e0; color: #e65100; border: 1px solid #ffb74d;
}
.measure-tag.fallback.hefarm {
  background: #fff8f0; color: #bf5600; border: 1px dashed #ffb74d;
}

/* Channel risk adjustment line */
.channel-risk-adj {
  font-size: 0.78rem; color: var(--clr-text-light); margin-top: 0.2rem;
  font-family: var(--mono);
}
.channel-risk-adj em {
  color: var(--clr-primary); font-style: normal; font-weight: 700;
}

/* Efficacy range label update */
.efficacy-range .base { font-weight: 600; }

/* Channel detail table reduction cell */
.reduction-cell { color: var(--clr-primary); font-weight: 600; }

/* --- Advanced (Screen 4) --- */
.adv-section { margin-bottom: 2rem; }
.adv-section h3 { margin-bottom: 0.75rem; }

.chart-area {
  display: flex; align-items: flex-end; gap: 6px; height: 200px;
  padding: 0.5rem; background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); margin-bottom: 1rem;
}
.chart-bar-wrapper {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  height: 100%; justify-content: flex-end;
}
.chart-bar {
  width: 100%; max-width: 60px; border-radius: 4px 4px 0 0;
  background: var(--clr-primary); transition: height 0.5s ease; min-height: 2px;
}
.chart-bar.top { background: var(--clr-critical); }
.chart-bar-label { font-size: 0.65rem; text-align: center; margin-top: 0.3rem; color: var(--clr-text-light); line-height: 1.2; }
.chart-bar-value { font-size: 0.68rem; font-family: var(--mono); margin-bottom: 0.15rem; }

.econ-note {
  background: var(--clr-accent-light); border: 1px solid var(--clr-accent);
  border-radius: var(--radius); padding: 0.75rem; font-size: 0.84rem; margin-bottom: 1rem;
}
.econ-controls { display: flex; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.econ-controls .form-group { min-width: 160px; }

.econ-results { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.econ-card {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow);
}
.econ-card h4 { font-size: 0.9rem; margin-bottom: 0.5rem; color: var(--clr-primary); }
.econ-metric {
  display: flex; justify-content: space-between; font-size: 0.84rem; padding: 0.25rem 0;
  border-bottom: 1px solid var(--clr-bg);
}
.econ-metric:last-child { border-bottom: none; }
.econ-metric .value { font-family: var(--mono); font-weight: 600; }
.econ-verdict {
  margin-top: 0.5rem; padding: 0.4rem 0.6rem; border-radius: 4px;
  font-size: 0.82rem; font-weight: 600; text-align: center;
}
.verdict-positive { background: var(--clr-primary-light); color: var(--clr-primary-dark); }
.verdict-caution { background: var(--clr-accent-light); color: #8a6000; }

.limitations { margin-top: 1.5rem; }
.limitations h4 { font-size: 0.85rem; margin-bottom: 0.3rem; }
.limitations ul { font-size: 0.78rem; padding-left: 1.3rem; color: var(--clr-text-light); }
.limitations li { margin-bottom: 0.2rem; }

/* Channel detail table */
#channelDetailTable table {
  width: 100%; border-collapse: collapse; font-size: 0.82rem;
}
#channelDetailTable th, #channelDetailTable td {
  padding: 0.4rem 0.6rem; text-align: left; border-bottom: 1px solid var(--clr-border);
}
#channelDetailTable th { background: var(--clr-bg); font-weight: 600; font-size: 0.78rem; }
#channelDetailTable td:nth-child(2) { font-family: var(--mono); }

/* --- Print Report --- */
.print-report { display: none; }

@media print {
  .no-print { display: none !important; }
  .app-header { display: none; }
  main { display: none; }
  .print-report { display: block !important; }

  body { background: #fff; font-size: 11pt; color: #000; }
  .print-report { padding: 0; max-width: 100%; }

  .report-header {
    text-align: center; border-bottom: 2px solid #1a6b3c;
    padding-bottom: 0.5rem; margin-bottom: 1rem;
  }
  .report-header h1 { font-size: 16pt; color: #1a6b3c; }
  .report-header p { font-size: 9pt; color: #555; }

  .report-section { margin-bottom: 1rem; page-break-inside: avoid; }
  .report-section h2 { font-size: 13pt; color: #1a6b3c; border-bottom: 1px solid #ccc; padding-bottom: 0.3rem; margin-bottom: 0.5rem; }

  .report-section table {
    width: 100%; border-collapse: collapse; font-size: 9pt; margin-bottom: 0.5rem;
  }
  .report-section th, .report-section td {
    padding: 0.3rem 0.5rem; border: 1px solid #ccc; text-align: left;
  }
  .report-section th { background: #f0f0f0; font-weight: 700; }

  .report-section ul { padding-left: 1.2rem; font-size: 9pt; }
  .report-section li { margin-bottom: 0.15rem; }

  /* Transport impact in print */
  #reportTransportSection table td:nth-child(4) { color: #1a6b3c; font-weight: 700; }

  /* Measure tags in print */
  .measure-tag { font-size: 7pt; background: #e8f0fe; border: 1px solid #bbb; padding: 0 3px; }
  .measure-tag.fallback { background: #f5f5f5; border-style: dashed; }
  .measure-tag.hefarm { background: #fff3e0; border: 1px solid #ffb74d; color: #e65100; }
  .measure-tag.fallback.hefarm { background: #fff8f0; border-style: dashed; }

  .report-disclaimer {
    margin-top: 1.5rem; padding-top: 0.5rem; border-top: 1px solid #ccc;
    font-size: 8pt; color: #666;
  }
  .report-disclaimer h3 { font-size: 10pt; }
  .report-footer { margin-top: 0.5rem; font-style: italic; }
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .form-grid { grid-template-columns: 1fr; }
  .slider-row { grid-template-columns: 1fr; }
  .risk-summary { grid-template-columns: 1fr; }
  .econ-results { grid-template-columns: 1fr; }
  .step-tab { font-size: 0.72rem; padding: 0.5rem 0.3rem; }
}