:root {
  --bg: #f8fafc;
  --panel: #fff;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --ok: #16a34a;
  --table-head: #f1f5f9;
  --drop-hover: #eff6ff;
  --drop-border: #94a3b8;
  --badge-imported-bg: #dcfce7;
  --badge-failed-bg: #fee2e2;
  --badge-importing-bg: #dbeafe;
  --input-bg: #fff;
}

[data-theme="dark"] {
  --bg: #0f172a;
  --panel: #1e293b;
  --border: #334155;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --danger: #f87171;
  --ok: #4ade80;
  --table-head: #334155;
  --drop-hover: #1e3a5f;
  --drop-border: #475569;
  --badge-imported-bg: #14532d;
  --badge-failed-bg: #450a0a;
  --badge-importing-bg: #1e3a8a;
  --input-bg: #0f172a;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background 0.2s, color 0.2s;
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 0.9rem; }
.error { color: var(--danger); }
.panel {
  max-width: 420px;
  margin: 10vh auto;
  padding: 2rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  position: relative;
}
label { display: block; margin-bottom: 1rem; font-size: 0.9rem; }
input {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
}
button {
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
}
button:hover { background: var(--primary-hover); }
button.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
button.ghost:hover { background: var(--table-head); }
.theme-toggle {
  min-width: 2.5rem;
  padding: 0.45rem 0.65rem;
  font-size: 1rem;
  line-height: 1;
}
.login-theme-toggle {
  position: absolute;
  top: 1rem;
  right: 1rem;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.layout { display: grid; grid-template-columns: 1fr 260px; gap: 1rem; padding: 1.5rem; }
.content { min-width: 0; }
.sidebar .stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}
.drop-zone {
  border: 2px dashed var(--drop-border);
  border-radius: 12px;
  padding: 2.5rem;
  text-align: center;
  background: var(--panel);
  cursor: pointer;
  margin-bottom: 1.5rem;
}
.drop-zone.dragover { border-color: var(--primary); background: var(--drop-hover); }
.table-wrap {
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
}
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th, td { padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--border); text-align: left; }
th { background: var(--table-head); }
.actions { display: flex; gap: 0.75rem; margin-top: 1rem; align-items: center; flex-wrap: wrap; }
.mapping-header { margin-bottom: 0.75rem; }
.mapping-table { width: 100%; margin: 0.5rem 0 1rem; }
.mapping-table th { background: var(--table-head); }
.mapping-table td { padding: 0.4rem 0.6rem; }
.mapping-table select {
  width: 100%;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.85rem;
}
.badge { padding: 0.15rem 0.5rem; border-radius: 999px; font-size: 0.75rem; display: inline-block; }
.badge.imported { background: var(--badge-imported-bg); color: var(--ok); }
.badge.failed { background: var(--badge-failed-bg); color: var(--danger); }
.badge.importing { background: var(--badge-importing-bg); color: var(--primary); }
.badge-good { background: var(--badge-imported-bg); color: var(--ok); padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.75rem; }
.badge-warn { background: #fef3c7; color: #b45309; padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.75rem; }
.badge-bad  { background: var(--badge-failed-bg); color: var(--danger); padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.75rem; }
.badge-cache { background: var(--badge-importing-bg); color: var(--primary); padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.75rem; }
.badge-ai { background: #ede9fe; color: #6d28d9; padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.75rem; }
.badge-keyword { background: var(--badge-imported-bg); color: var(--ok); padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.75rem; }
[data-theme="dark"] .badge-warn { background: #422006; color: #fde68a; }
[data-theme="dark"] .badge-ai { background: #2e1065; color: #c4b5fd; }
button.small { padding: 0.3rem 0.6rem; font-size: 0.75rem; }
.spacer { flex: 1; }

/* ============== WIZARD ============== */

.step-indicator {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.step-indicator li {
  flex: 1;
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
  border-right: 1px solid var(--border);
  position: relative;
}
.step-indicator li:last-child { border-right: 0; }
.step-indicator li .step-num {
  display: inline-flex;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: var(--table-head);
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
}
.step-indicator li.active { color: var(--text); font-weight: 600; }
.step-indicator li.active .step-num { background: var(--primary); color: #fff; }
.step-indicator li.done { color: var(--text); }
.step-indicator li.done .step-num { background: var(--ok); color: #fff; }

.step-panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem; }
.step-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: 1rem; }
.step-header h2 { margin: 0 0 0.25rem 0; font-size: 1.15rem; }
.step-header-actions { display: flex; gap: 0.5rem; }

.summary-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
}
.summary-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}
.summary-row strong { color: var(--text); }

/* Field cards (Step 2) */
.field-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.field-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.field-card.required { border-left: 3px solid var(--primary); }
.field-card.unmapped { border: 1px dashed var(--danger); }
.field-card-head { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.field-card select {
  width: 100%;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.85rem;
}
.field-card .samples {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}
.field-card .sample {
  background: var(--table-head);
  border-radius: 4px;
  padding: 0.15rem 0.4rem;
  font-size: 0.75rem;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.raw-preview { margin: 1rem 0; }
.raw-preview summary { cursor: pointer; font-size: 0.9rem; color: var(--muted); margin-bottom: 0.5rem; }

/* Validation (Step 3) */
.warning-list { margin: 0.5rem 0 0 0; padding-left: 1.25rem; color: var(--muted); font-size: 0.85rem; }
.error-list { margin: 0.5rem 0; padding-left: 1.25rem; font-size: 0.85rem; }
.row-warn { background: rgba(220, 38, 38, 0.05); }
.pass-good strong { color: var(--ok); }
.pass-warn strong { color: #b45309; }
.pass-bad strong { color: var(--danger); }
[data-theme="dark"] .pass-warn strong { color: #fde68a; }

.deep-parse-card {
  background: var(--bg);
  border: 1px dashed var(--primary);
  border-radius: 10px;
  padding: 1rem;
  margin: 1rem 0;
}
.deep-parse-card h3 { margin-top: 0; }

/* Import (Step 4) */
.force-commit-label {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.85rem;
  color: var(--muted);
}

/* Sidebar tips */
.tip-list { padding-left: 1.1rem; margin: 0.5rem 0 0 0; font-size: 0.85rem; color: var(--muted); }
.tip-list li { margin-bottom: 0.4rem; }
.tip-list strong { color: var(--text); }

/* Ask AI side panel */
.ask-ai-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 360px;
  height: 100vh;
  background: var(--panel);
  border-left: 1px solid var(--border);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  z-index: 50;
  box-shadow: -8px 0 24px rgba(0, 0, 0, 0.08);
}
.ask-ai-panel header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}
.ask-ai-panel header h3 { margin: 0; }
.ask-ai-conversation {
  flex: 1;
  overflow-y: auto;
  margin: 0.75rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.ask-ai-msg {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.75rem;
  font-size: 0.85rem;
}
.ask-ai-msg.user { background: var(--badge-importing-bg); color: var(--text); }
.ask-ai-role {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 0.2rem;
}
#ask-ai-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
#ask-ai-input {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text);
  padding: 0.5rem;
  font-family: inherit;
  resize: vertical;
}

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .ask-ai-panel { width: 100vw; }
}