:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --surface-alt: #f4f5f7;
  --border: #e2e4e9;
  --text: #1a1a1a;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --green: #16a34a;
  --green-hover: #15803d;
  --amber: #d97706;
  --red: #dc2626;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-left h1 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.header-left p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.header-right {
  display: flex;
  gap: 6px;
}

.layout {
  display: flex;
  height: calc(100vh - 77px);
}

.sidebar {
  width: 300px;
  min-width: 300px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 20px;
  overflow-y: auto;
}

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.content {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.sidebar-section {
  margin-bottom: 24px;
}

.sidebar-section-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 10px;
}

.field {
  margin-bottom: 10px;
}

.field label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 3px;
}

.field input, .field select, .field textarea {
  width: 100%;
  padding: 7px 10px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}

.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

.field input[readonly] {
  color: var(--text-muted);
  background: var(--bg);
}

button {
  padding: 7px 14px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-primary {
  background: var(--accent);
  color: white;
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--surface-alt); }

.btn-success {
  background: var(--green);
  color: white;
}
.btn-success:hover { background: var(--green-hover); }

.btn-warning {
  background: var(--amber);
  color: white;
}

.btn-sm { padding: 5px 10px; font-size: 12px; }

.preset-group {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
}

.preset-btn {
  flex: 1;
  padding: 6px 0;
  text-align: center;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}

.preset-btn:hover, .preset-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.tabs {
  display: flex;
  gap: 2px;
  background: var(--surface-alt);
  padding: 3px;
  border-radius: 8px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
}

.tab {
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  transition: all 0.15s;
}

.tab:hover { color: var(--text); }

.tab.active {
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

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

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.card-title {
  font-size: 14px;
  font-weight: 600;
}

.card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.card-actions {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.card-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

.card-row .field { flex: 1; margin-bottom: 0; }

.result-box {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  margin-top: 12px;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 12px;
  max-height: 240px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.5;
  color: var(--text);
}

.dataset-item {
  padding: 10px 12px;
  margin-bottom: 6px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.dataset-item:hover {
  border-color: var(--accent);
}

.dataset-name {
  font-weight: 600;
  font-size: 13px;
}

.dataset-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.log-panel {
  height: 220px;
  min-height: 160px;
  border-top: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
}

.log-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 16px;
  border-bottom: 1px solid var(--border);
}

.log-header span {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.log-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 16px;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 12px;
  line-height: 1.6;
  background: var(--bg);
}

.log-entry { margin-bottom: 2px; }
.log-time { color: var(--text-muted); }
.log-req { color: var(--accent); }
.log-res { color: var(--green); }
.log-err { color: var(--red); }
.log-info { color: #7c3aed; }

.steps {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

.step {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
}

.step.done .step-num {
  background: var(--green);
  border-color: var(--green);
  color: white;
}

.step-line {
  width: 24px;
  height: 1px;
  background: var(--border);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
  align-items: start;
}

.grid-2 > .card, .grid-3 > .card {
  margin-bottom: 0;
}

.grid-2 > div > .card {
  margin-bottom: 16px;
}

.grid-2 > div > .card:last-child {
  margin-bottom: 0;
}

.hidden { display: none !important; }

.status-pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}

.status-ok { background: #dcfce7; color: #166534; }
.status-pending { background: #fef3c7; color: #92400e; }
.status-err { background: #fef2f2; color: #991b1b; }