:root {
  --bg: #0f172a;
  --panel: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #22c55e;
  --accent-2: #06b6d4;
  --danger: #ef4444;
  --border: #1f2937;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
}

.container {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 1.5rem;
}

h1 {
  font-weight: 700;
  margin: 0 0 1rem 0;
}

.inputs {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 1rem;
  align-items: end;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 12px;
}

.input-group label {
  display: block;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

input[type="file"] {
  width: 100%;
}

button#matchBtn {
  padding: 0.7rem 1.1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, #16a34a, #15803d);
  color: white;
  font-weight: 600;
  cursor: pointer;
}

button#matchBtn:disabled {
  background: #374151;
  cursor: not-allowed;
}

.summary {
  margin-top: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 12px;
}

.conversion-analysis {
  margin-top: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 12px;
}

.conversion-stat {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.conversion-stat-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: bold;
}

.conversion-stat-icon.sales {
  background: rgba(34, 197, 94, 0.2);
  color: var(--accent);
}

.conversion-stat-icon.leads {
  background: rgba(6, 182, 212, 0.2);
  color: var(--accent-2);
}

.conversion-stat-content {
  flex: 1;
}

.conversion-stat-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.conversion-stat-description {
  color: var(--muted);
  font-size: 0.9rem;
}

.download {
  display: inline-block;
  margin-top: 0.8rem;
  color: white;
  background: linear-gradient(180deg, #0891b2, #0e7490);
  padding: 0.6rem 0.9rem;
  border-radius: 10px;
  text-decoration: none;
}

.preview {
  margin-top: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 12px;
}

.preview-cards-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.preview-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
}

.preview-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.preview-card-title {
  font-weight: 600;
  font-size: 1.1rem;
}

.preview-card-probability {
  background: var(--accent);
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 600;
}

.preview-comparison {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.preview-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.preview-field-label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.preview-field-value {
  font-weight: 600;
  font-size: 1rem;
}

.preview-field-match {
  font-size: 0.85rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.preview-field-match.exact {
  color: var(--accent);
}

.preview-field-match-icon {
  width: 12px;
  height: 12px;
}

.preview-field-match-icon.exact {
  color: var(--accent);
}

@media (max-width: 768px) {
  .preview-comparison {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

.stats {
  margin-top: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 12px;
}

.histogram {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 8px;
  align-items: end;
  height: 160px;
  margin: 0.5rem 0 1rem 0;
}

.hist-bar {
  background: linear-gradient(180deg, #0891b2, #0e7490);
  border: 1px solid var(--border);
  border-radius: 6px 6px 0 0;
  position: relative;
}

.hist-bar::after {
  content: attr(data-label);
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  color: var(--muted);
}

.stats table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border);
}

.stats th, .stats td {
  text-align: left;
  padding: 0.6rem 0.7rem;
  border-bottom: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border);
}

th, td {
  text-align: left;
  padding: 0.6rem 0.7rem;
  border-bottom: 1px solid var(--border);
}

th { color: var(--muted); font-weight: 600; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.85rem;
  border: 1px solid var(--border);
}

.pill.success { background: rgba(34,197,94,0.12); color: #86efac; }
.pill.warn { background: rgba(234,179,8,0.12); color: #fde68a; }
.pill.danger { background: rgba(239,68,68,0.12); color: #fecaca; }

.muted { color: var(--muted); }

/* Modal Styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  margin: 0;
  font-size: 1.5rem;
}

.close-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.close-btn:hover {
  background: var(--border);
  color: var(--text);
}

.modal-body {
  padding: 1.5rem;
}

.modal-body p {
  margin: 0 0 1.5rem 0;
  color: var(--muted);
}

.mapping-field {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.mapping-field-label {
  min-width: 120px;
  font-weight: 600;
}

.mapping-field-label.required::after {
  content: " *";
  color: var(--danger);
}

.mapping-field-controls {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mapping-field select {
  flex: 1;
  padding: 0.5rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.9rem;
}

.mapping-field select:focus {
  outline: none;
  border-color: var(--accent);
}

.confidence-indicator {
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
}

.confidence-indicator.high {
  background: rgba(34, 197, 94, 0.2);
  color: var(--accent);
}

.confidence-indicator.medium {
  background: rgba(234, 179, 8, 0.2);
  color: #fbbf24;
}

.confidence-indicator.low {
  background: rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

.modal-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.btn-primary, .btn-secondary, .btn-danger {
  padding: 0.7rem 1.2rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: linear-gradient(180deg, #16a34a, #15803d);
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(180deg, #15803d, #166534);
}

.btn-secondary {
  background: var(--panel);
  color: var(--text);
}

.btn-secondary:hover {
  background: var(--border);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.2);
}

@media (max-width: 768px) {
  .modal-content {
    width: 95%;
    margin: 1rem;
  }
  
  .mapping-field {
    flex-direction: column;
    align-items: stretch;
  }
  
  .mapping-field-label {
    min-width: auto;
  }
  
  .modal-actions {
    flex-direction: column;
  }
}