:root {
  --primary-color: #0ea5e9;
  --primary-hover: #0284c7;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --code-bg: #0f172a;
  --code-text: #e0f2fe;
  --color-green: #16a34a;
  --color-red: #dc2626;
  --color-orange: #f97316;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  margin: 0;
  background: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
}

.container { max-width: 980px; margin: 40px auto; padding: 0 16px; }
header { text-align: center; margin-bottom: 32px; }
h1 { margin: 0 0 8px; letter-spacing: -0.02em; font-size: 2.25rem; }
h2 { border-bottom: 1px solid var(--border-color); padding-bottom: 8px; margin-top: 24px; font-size: 1.5rem; }
h3 { margin-top: 20px; font-size: 1.25rem; }
h4 { margin-top: 16px; color: var(--text-secondary); }
.muted { color: var(--text-secondary); margin: 0; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -2px rgba(0,0,0,0.05);
  margin-bottom: 20px;
}

/* Form & Upload */
.drop-zone {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 32px; border: 2px dashed var(--border-color); border-radius: 12px;
  background-color: #fcfdff; cursor: pointer; transition: all 0.2s; margin-bottom: 16px;
}
.drop-zone:hover, .drop-zone.dragover { border-color: var(--primary-color); background-color: #f0f9ff; }
.drop-zone svg { color: var(--primary-color); margin-bottom: 8px; }
.drop-zone-text { margin: 0; text-align: center; }
.file-name-text { color: var(--text-secondary); font-size: 0.9rem; margin-top: 8px; }
#upload-form { text-align: center; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: 12px; border: 1px solid var(--primary-color);
  background: var(--primary-color); color: #fff; font-weight: 600; text-decoration: none;
  cursor: pointer; transition: background-color 0.2s, filter 0.2s;
}
.btn:hover { background: var(--primary-hover); }
.btn:disabled { background: #94a3b8; border-color: #94a3b8; cursor: not-allowed; }
.btn.outline { background: transparent; color: var(--primary-color); }
.btn.outline:hover { background: #f0f9ff; }
.status { margin-top: 12px; text-align: center; }

.review-panel {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  margin-top: 20px;
  background: #f8fafc;
  text-align: left;
}
.review-panel-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 12px;
}
.review-panel-header .small {
  margin: 4px 0 0;
  font-size: 0.9rem;
}
.file-chip {
  background: #e0f2fe;
  color: var(--primary-color);
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
}
.review-content {
  background: var(--code-bg);
  color: var(--code-text);
  font-family: SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;
  padding: 16px;
  border-radius: 10px;
  max-height: 280px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}
.review-actions {
  margin-top: 16px;
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}
.summary-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}
.summary-chips .chip {
  padding: 8px 14px;
  border-radius: 999px;
  background: #e2e8f0;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
}
.review-section {
  margin-bottom: 20px;
}
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}
.count-pill {
  background: #c7d2fe;
  color: #312e81;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}
.table-scroll {
  overflow: auto;
  border: 1px solid var(--border-color);
  border-radius: 10px;
}
.review-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.review-table th,
.review-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
  white-space: nowrap;
}
.review-table th {
  background: #f1f5f9;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.review-table td:nth-child(2) {
  font-weight: 600;
  color: var(--text-primary);
}
.review-table tr:last-child td {
  border-bottom: none;
}
.two-column {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.data-list {
  margin: 0;
  padding: 0;
}
.data-list dt {
  font-weight: 600;
  margin-top: 12px;
}
.data-list dd {
  margin: 0;
  color: var(--text-secondary);
}
.data-list dt:first-of-type {
  margin-top: 0;
}
.tag-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag-list li {
  background: #fef3c7;
  border: 1px solid #fcd34d;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 600;
  color: #92400e;
}
.raw-preview {
  margin-top: 20px;
}
.raw-preview summary {
  cursor: pointer;
  font-weight: 600;
  margin-bottom: 8px;
}

/* Loader */
.loader-container { text-align: center; padding: 40px; }
.spinner {
  width: 48px; height: 48px; border: 5px solid #f3f3f3; border-top: 5px solid var(--primary-color);
  border-radius: 50%; margin: 0 auto 16px; animation: spin 1s linear infinite;
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* Result View */
.hidden { display: none; }
.actions { text-align: right; margin-bottom: 16px; }

/* Tabs */
.tabs { display: flex; border-bottom: 1px solid var(--border-color); margin-bottom: 20px; }
.tab-btn {
  padding: 10px 16px; border: none; background: none; cursor: pointer; font-size: 1rem;
  color: var(--text-secondary); border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab-btn.active { color: var(--primary-color); border-bottom-color: var(--primary-color); font-weight: 600; }
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.5s; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Report Specific Styles */
.executive-summary {
  background-color: #f0f9ff;
  border-left: 4px solid var(--primary-color);
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 24px;
}

.insight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.insight-card { padding: 16px; border-radius: 12px; border: 1px solid var(--border-color); }
.insight-card h3 { display: flex; align-items: center; gap: 8px; margin-top: 0; }
.insight-card.concern { border-color: var(--color-red); background-color: #fef2f2; }
.insight-card.concern h3 { color: var(--color-red); }
.insight-card.going-well { border-color: var(--color-green); background-color: #f0fdf4; }
.insight-card.going-well h3 { color: var(--color-green); }
.insight-card ul { padding-left: 20px; margin: 0; }

/* Accordion for Analysis */
.accordion-item { border-bottom: 1px solid var(--border-color); }
.accordion-header {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 16px 8px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.accordion-header::after { content: '+'; font-size: 1.5rem; color: var(--primary-color); transition: transform 0.2s; }
.accordion-item.active .accordion-header::after { transform: rotate(45deg); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease-out; }
.accordion-content .content-inner { padding: 0 16px 16px; }
.lab-test-list { list-style: none; padding: 0; margin-top: 16px; }
.lab-test-list li { padding: 8px 0; border-bottom: 1px dashed #e2e8f0; }
.lab-test-list li:last-child { border-bottom: none; }

/* Suggestion Cards for Nutrition/Lifestyle */
.suggestion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.suggestion-card {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
}
.suggestion-card-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; margin-bottom: 8px; }
.suggestion-card h4 { margin: 0; }
.priority-badge {
  padding: 2px 10px;
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
}
.priority-badge.high { background-color: var(--color-red); }
.priority-badge.medium { background-color: var(--color-orange); }
.priority-badge.low { background-color: var(--text-secondary); }
.suggestion-card .reason { color: var(--text-secondary); margin-bottom: 12px; font-size: 0.9rem; }
.suggestion-card ul { padding-left: 20px; margin: 0; font-size: 0.9rem; }
.suggestion-card .detail-label {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 12px 0 4px;
}
.suggestion-card .detail-line {
  margin: 4px 0 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Risk Analysis */
.risk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.risk-card {
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--color-orange);
  border-radius: 12px;
  padding: 16px;
  background: #fffbeb;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.risk-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}
.risk-group {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.risk-disease {
  margin: 4px 0 0;
  color: var(--text-primary);
}
.risk-badge {
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 700;
  color: #fff;
  background: var(--text-secondary);
  white-space: nowrap;
}
.risk-badge.high-risk, .risk-badge.high { background: var(--color-red); }
.risk-badge.moderate-risk, .risk-badge.moderate { background: var(--color-orange); }
.risk-badge.low-risk, .risk-badge.low { background: var(--color-green); }
.risk-label {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 8px 0 0;
}
.risk-text {
  margin: 0;
  color: var(--text-primary);
}
.risk-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

@media (max-width: 768px) {
  .insight-grid { grid-template-columns: 1fr; }
}

/* Footer */
.footer {
  margin: 32px 0 12px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}
.footer-card {
  background: transparent;
  color: var(--text-primary);
  border-radius: 0;
  padding: 10px 12px;
  box-shadow: none;
  position: relative;
}
.footer-line {
  margin: 2px 0;
  font-weight: 500;
  letter-spacing: 0.01em;
  font-size: 0.88rem;
}
.footer-line.header {
  margin-top: 0;
  margin-bottom: 6px;
  font-size: 0.95rem;
  font-weight: 700;
}
.footer-btn {
  padding: 8px 12px;
  font-size: 0.88rem;
  border-radius: 10px;
  margin-top: 8px;
}
.footer-btn.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-card + .footer-card {
  border-left: 1px solid var(--border-color);
  padding-left: 18px;
}

@media (max-width: 640px) {
  .footer-card + .footer-card {
    border-left: none;
    border-top: 1px solid var(--border-color);
    padding-left: 12px;
    padding-top: 12px;
  }
}