:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --brand: #0f766e;
  --brand-dark: #0d5c56;
  --brand-soft: #ecfdf5;
  --low: #22c55e;
  --moderate: #eab308;
  --elevated: #f97316;
  --high: #ef4444;
  --unknown: #94a3b8;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 8px 24px rgba(15, 23, 42, 0.04);
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.shell {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #14b8a6, #0f766e);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 18px;
}

.brand h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
}

.brand p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.875rem;
}

.nav-links {
  display: flex;
  gap: 12px;
  font-size: 0.875rem;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 700;
}

.panel-sub {
  color: var(--muted);
  font-size: 0.875rem;
  margin: -4px 0 16px;
}

.lookup {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

@media (max-width: 560px) {
  .lookup { grid-template-columns: 1fr; }
}

input, select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  background: #fff;
}

input:focus, select:focus {
  outline: 2px solid rgba(15, 118, 110, 0.25);
  border-color: var(--brand);
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 12px 18px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  background: var(--brand);
  color: #fff;
  white-space: nowrap;
}

.btn:hover { background: var(--brand-dark); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  color: var(--brand);
  border: 1px solid var(--border);
}

.hero {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 20px;
  align-items: center;
}

@media (max-width: 560px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
}

.score-ring {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin: 0 auto;
  border: 6px solid var(--brand);
  background: var(--brand-soft);
}

.score-ring .value {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1;
}

.score-ring .label {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 2px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  background: var(--brand-soft);
  color: var(--brand-dark);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.grid-rooms {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.grid-portfolio {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.property-card {
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: 12px;
  padding: 16px;
  background: #fff;
  cursor: pointer;
  transition: box-shadow 0.15s, transform 0.15s;
}

.property-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.property-card.selected {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.room-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  background: #fff;
}

.room-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 8px;
  margin-bottom: 12px;
}

.room-head h3 {
  margin: 0;
  font-size: 1rem;
}

.badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 999px;
  color: #fff;
  white-space: nowrap;
}

.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

.metric {
  background: var(--bg);
  border-radius: 10px;
  padding: 10px;
}

.metric .k {
  font-size: 0.75rem;
  color: var(--muted);
}

.metric .v {
  font-size: 1.125rem;
  font-weight: 700;
}

.guidance-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text);
  font-size: 0.875rem;
}

.guidance-list li + li { margin-top: 6px; }

.insight-item {
  border-left: 4px solid var(--brand);
  padding: 12px 14px;
  background: var(--bg);
  border-radius: 0 10px 10px 0;
  margin-bottom: 10px;
}

.insight-item.sev-2 { border-left-color: var(--elevated); }
.insight-item.sev-3 { border-left-color: var(--high); }

.insight-meta {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 6px;
}

.audit-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 10px;
}

.audit-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  background: #fff;
  cursor: pointer;
}

.audit-head:hover { background: var(--bg); }

.audit-body {
  display: none;
  padding: 0 16px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.audit-item.open .audit-body { display: block; }

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.evidence-cell {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  font-size: 0.8125rem;
}

.evidence-cell strong {
  display: block;
  color: var(--muted);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.disclaimer {
  font-size: 0.8125rem;
  color: var(--muted);
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}

.empty, .error {
  text-align: center;
  padding: 32px 16px;
  color: var(--muted);
}

.error { color: #b91c1c; }

.summary-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.stat-card {
  background: var(--bg);
  border-radius: 10px;
  padding: 14px;
}

.stat-card .n {
  font-size: 1.5rem;
  font-weight: 800;
}

.stat-card .l {
  font-size: 0.8125rem;
  color: var(--muted);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

@media (max-width: 560px) {
  .form-grid { grid-template-columns: 1fr; }
}

.field label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-grid label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
}

.form-grid label input {
  margin-top: 6px;
}

.tabs { display: flex; gap: 8px; flex-wrap: wrap; }

.chip {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.chip.active {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.hidden { display: none !important; }

.chart-wrap { margin-top: 12px; }
.chart-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 8px;
}
.humidity-chart {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 72px;
  padding: 8px;
  background: var(--bg);
  border-radius: 10px;
  border: 1px solid var(--border);
}
.chart-bar {
  flex: 1;
  min-width: 4px;
  border-radius: 3px 3px 0 0;
  transition: height 0.2s;
}

.skeleton {
  background: linear-gradient(90deg, #eef2f7 25%, #f8fafc 50%, #eef2f7 75%);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
  border-radius: 8px;
  min-height: 80px;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@media print {
  .topbar, .lookup, .nav-links, .btn { display: none !important; }
  body { background: #fff; }
  .panel { box-shadow: none; break-inside: avoid; }
}

.ai-panel {
  border-left: 4px solid var(--brand);
  background: linear-gradient(135deg, #f0fdfa 0%, #fff 60%);
}

.ai-headline {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.ai-prob {
  font-size: 2rem;
  font-weight: 800;
  color: var(--brand-dark);
  min-width: 4rem;
  line-height: 1.1;
}

.weather-strip .summary-stats {
  margin-top: 8px;
}

.form-grid select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
}