/* ═══════════════════════════════════════════════════════════
   EBSCO Pipeline Dashboard — Styles
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface-2: #232736;
  --border: #2e3348;
  --text: #e4e4e7;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
}

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

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

.app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ── Header ── */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.header h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.header-subtitle {
  font-size: 12px;
  color: var(--text-dim);
  margin-left: 12px;
}

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

.connection-status {
  font-size: 12px;
  color: var(--text-muted);
}

.connection-status.connected {
  color: var(--success);
}

.connection-status.error {
  color: var(--error);
}

/* ── Tabs ── */
.tabs {
  display: flex;
  gap: 2px;
  padding-top: 12px;
  border-bottom: 1px solid var(--border);
}

.tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 8px 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: all 0.15s;
}

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

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* ── Content ── */
.content {
  padding: 20px 0;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* ── Stats Grid ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}

.stat-number {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.stat-queued .stat-number { color: var(--text-muted); }
.stat-processing .stat-number { color: var(--info); }
.stat-review .stat-number { color: var(--warning); }
.stat-approved .stat-number { color: var(--success); }
.stat-escalated .stat-number { color: var(--warning); }
.stat-error .stat-number { color: var(--error); }
.stat-cost .stat-number { color: var(--primary); font-size: 22px; }

/* ── Sections ── */
.section {
  margin-bottom: 24px;
}

.section h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.help-text {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.placeholder {
  text-align: center;
  color: var(--text-dim);
  padding: 40px 20px;
  font-style: italic;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.btn:hover {
  background: var(--surface-2);
  border-color: var(--text-dim);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

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

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

.btn-secondary {
  background: var(--surface-2);
  border-color: var(--border);
}

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

.btn-danger {
  background: var(--error);
  border-color: var(--error);
  color: white;
}

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

/* ── Tables ── */
.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  text-align: left;
  padding: 8px 12px;
  background: var(--surface-2);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

tr:hover {
  background: var(--surface);
}

.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.status-queued { background: rgba(156,163,175,0.15); color: var(--text-muted); }
.status-generating, .status-evaluating, .status-revising { background: rgba(59,130,246,0.15); color: var(--info); }
.status-review { background: rgba(245,158,11,0.15); color: var(--warning); }
.status-approved { background: rgba(34,197,94,0.15); color: var(--success); }
.status-escalated { background: rgba(245,158,11,0.15); color: var(--warning); }
.status-error { background: rgba(239,68,68,0.15); color: var(--error); }

.score-badge {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.score-high { background: rgba(34,197,94,0.15); color: var(--success); }
.score-mid { background: rgba(245,158,11,0.15); color: var(--warning); }
.score-low { background: rgba(239,68,68,0.15); color: var(--error); }

.truncate {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ── Filter Bar ── */
.filter-bar {
  display: flex;
  gap: 8px;
}

.filter-bar select {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
}

/* ── Forms ── */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 12px;
  font-size: 14px;
  font-family: inherit;
}

.form-group textarea {
  resize: vertical;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  font-size: 12px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

/* ── Test Results ── */
.test-results {
  margin-top: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.test-results h3 {
  font-size: 15px;
  margin-bottom: 16px;
}

.result-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.result-meta .meta-item {
  font-size: 13px;
}

.result-meta .meta-label {
  color: var(--text-muted);
}

.result-meta .meta-value {
  font-weight: 600;
}

.attempt-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
}

.attempt-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.attempt-header h4 {
  font-size: 14px;
}

.overview-text {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 12px;
  white-space: pre-wrap;
}

.dimension-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 8px;
  margin-top: 8px;
}

.dimension-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 8px;
  background: var(--bg);
  border-radius: 4px;
  font-size: 12px;
}

.dimension-name {
  color: var(--text-muted);
}

/* ── Review Cards ── */
.review-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 12px;
}

.review-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.review-card-title {
  font-size: 16px;
  font-weight: 600;
}

.review-card-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.review-card-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.review-notes {
  width: 100%;
  margin-top: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 12px;
  font-size: 13px;
  font-family: inherit;
  resize: vertical;
}

/* ── Config ── */
.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.config-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.config-item label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.config-item input,
.config-item select {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 12px;
  font-size: 14px;
}

.system-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.system-info-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
}

.system-info-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.system-info-value {
  font-size: 14px;
  font-weight: 600;
  margin-top: 4px;
}

.system-info-value.ok { color: var(--success); }
.system-info-value.missing { color: var(--error); }

/* ── Spinner ── */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .header {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }

  .section-header {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }

  .filter-bar {
    width: 100%;
  }

  .filter-bar select {
    flex: 1;
  }
}