:root {
  --bg: #f6f7f5;
  --surface: #ffffff;
  --border: #dde1dc;
  --text: #1b241f;
  --text-muted: #5b655e;
  --primary: #1f5f4a;
  --primary-dark: #163f32;
  --danger: #a13327;
  --danger-bg: #fbe9e7;
  --warning: #8a5a12;
  --warning-bg: #fdf1de;
  --success: #1f5f4a;
  --success-bg: #e7f2ec;
  --focus: #2f7fb8;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(20, 30, 25, 0.06), 0 1px 8px rgba(20, 30, 25, 0.04);
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.45;
}

a { color: var(--primary); }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 20px 80px;
}

header.top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 8px;
}

header.top h1 {
  font-size: 1.25rem;
  margin: 0;
  letter-spacing: -0.01em;
}

header.top .brand-mark {
  color: var(--primary);
  font-weight: 700;
}

.workspace-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--warning-bg);
  color: var(--warning);
}

.badge.demo { background: #eef0e9; color: #566152; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 22px;
  margin-bottom: 18px;
}

.card h2 {
  font-size: 1.02rem;
  margin: 0 0 4px;
}

.card .subtitle {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin: 0 0 16px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.upload-slot {
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}

.upload-slot.filled { border-style: solid; border-color: var(--primary); background: #f4faf7; }
.upload-slot.error { border-color: var(--danger); background: var(--danger-bg); }

.upload-slot label.slot-title {
  display: block;
  font-weight: 600;
  margin-bottom: 4px;
}

.upload-slot .slot-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

button, .btn {
  font: inherit;
  cursor: pointer;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 8px 14px;
  font-size: 0.88rem;
}

button:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button:focus-visible, input:focus-visible, select:focus-visible, a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

button.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  font-weight: 600;
}
button.primary:hover:not(:disabled) { background: var(--primary-dark); color: white; }

button.text {
  border-color: transparent;
  background: none;
  padding: 4px 6px;
}

input[type="text"], input[type="number"], select {
  font: inherit;
  padding: 7px 10px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: white;
  width: 100%;
}

table { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-weight: 600; color: var(--text-muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.03em; }
tr:last-child td { border-bottom: none; }
.table-scroll { overflow-x: auto; }

.pill { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 0.72rem; font-weight: 600; }
.pill.ambiguous { background: var(--warning-bg); color: var(--warning); }
.pill.rule { background: #e9eef0; color: #3b4a50; }
.pill.heuristic { background: #eaf1fb; color: #204d78; }
.pill.model { background: #f1eafb; color: #5a3a8c; }
.pill.saved { background: var(--success-bg); color: var(--success); }
.pill.manual { background: #eee; color: #555; }

.num { font-variant-numeric: tabular-nums; text-align: right; }
.negative { color: var(--danger); }
.positive { color: var(--success); }

.status-line { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-muted); margin: 8px 0; }
.spinner {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--border); border-top-color: var(--primary);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.alert { border-radius: 8px; padding: 10px 14px; font-size: 0.85rem; margin: 10px 0; }
.alert.error { background: var(--danger-bg); color: var(--danger); }
.alert.warning { background: var(--warning-bg); color: var(--warning); }
.alert.info { background: #eaf1fb; color: #204d78; }
.alert.success { background: var(--success-bg); color: var(--success); }

.summary-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 14px; }
.summary-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.summary-card .value { font-size: 1.5rem; font-weight: 700; }
.summary-card .label { font-size: 0.78rem; color: var(--text-muted); }

footer.assumptions { font-size: 0.78rem; color: var(--text-muted); margin-top: 24px; border-top: 1px solid var(--border); padding-top: 12px; }

.mapping-row.locked td { color: var(--text-muted); }
.small { font-size: 0.78rem; color: var(--text-muted); }

.decision-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 8px; }
.decision-form select, .decision-form input { max-width: 200px; }

@media print {
  header.top .actions, .upload-section, footer.assumptions .no-print, button { display: none !important; }
  body { background: white; }
  .card { box-shadow: none; border: none; }
}