:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --border: #d7dde3;
  --accent: #2b6cb0;
  --accent-dark: #1f4d80;
  --text: #1a2733;
  --muted: #6b7785;
  --mono: "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* App shell */
.app-shell {
  flex: 1;
  display: flex;
  min-height: 0;
}
.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Left nav strip */
.left-nav {
  width: 48px;
  background: #dde2e8;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0;
  gap: 6px;
  flex-shrink: 0;
  border-right: 1px solid #c8cfd8;
}
.nav-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: #5a6775;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
}
.nav-btn:hover { background: rgba(0,0,0,0.08); color: #1a2733; }
.nav-btn.active { background: #fff; color: var(--accent); box-shadow: 0 1px 4px rgba(0,0,0,0.12); }

/* Account panel */
.account-panel {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}


.account-sidebar {
  width: 200px;
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 12px 0;
}
.account-sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 8px;
}
.account-nav-item {
  width: 100%;
  text-align: left;
  padding: 9px 12px;
  border: none;
  border-radius: 6px;
  background: transparent;
  font-size: 13px;
  font-family: inherit;
  color: var(--text);
  cursor: pointer;
  transition: background 0.12s;
}
.account-nav-item:hover { background: #f0f3f6; }
.account-nav-item.active { background: #e8f0fb; color: var(--accent); font-weight: 600; }

.account-sidebar-footer {
  margin-top: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: 1px solid var(--border);
}
.account-action-btn {
  width: 100%;
  text-align: left;
  padding: 8px 12px;
  border: none;
  border-radius: 6px;
  background: transparent;
  font-size: 13px;
  font-family: inherit;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.account-action-btn:hover { background: #f0f3f6; color: var(--text); }
.account-action-danger { color: #c53030; }
.account-action-danger:hover { background: #fff5f5; color: #9b2c2c; }

.account-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  min-width: 0;
}
.account-content-empty {
  color: var(--muted);
  font-size: 14px;
  padding: 12px 0;
}

/* Expression cards */
.expr-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 12px;
}
.expr-card-header {
  margin-bottom: 8px;
}
.expr-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.expr-card-title-empty { color: var(--muted); font-weight: 400; font-style: italic; }
.expr-card-actions {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
}
.expr-card-action {
  width: 28px;
  height: 28px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
}
.expr-card-action:hover { background: #f0f3f6; color: var(--accent); border-color: var(--border); }
.expr-card-action.active-favorite { color: #e53e3e; }
.expr-card-action.active-favorite:hover { color: #c53030; }
.expr-card-action.private-eye { color: #a0aec0; }
.expr-card-action-delete:hover { background: #fff5f5; color: #c53030; border-color: #fed7d7; }
.expr-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 8px;
}
.expr-card-tag {
  background: #e8f0fb;
  color: var(--accent);
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 11px;
}
.expr-card-description {
  font-size: 13px;
  color: #64748b;
  margin-bottom: 8px;
  line-height: 1.4;
  word-wrap: break-word;
}
.expr-card-code {
  font-family: var(--mono);
  font-size: 13px;
  color: #2d3748;
  background: #f7f9fb;
  border: 1px solid #e8ecf1;
  border-radius: 5px;
  padding: 8px 12px;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Header */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.brand { font-size: 20px; letter-spacing: 0.5px; }
.brand-main { font-weight: 700; }
.topbar-right { display: flex; align-items: center; gap: 16px; }
.status { display: flex; gap: 8px; }

/* Login button */
.login-area { position: relative; }
.login-btn {
  margin: 0;
  padding: 4px 14px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.35);
  color: #fff;
  border-radius: 5px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
  line-height: 1;
  height: auto;
}
.login-btn:hover { background: rgba(255,255,255,0.25); }
.login-btn.logged-in {
  background: rgba(255,255,255,0.22);
}

/* Docs button */
.docs-btn {
  margin: 0;
  padding: 4px 14px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.35);
  color: #fff;
  border-radius: 5px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
  line-height: 1;
  height: auto;
}
.docs-btn:hover { background: rgba(255,255,255,0.25); }

/* Login popover */
.login-popover {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.13);
  padding: 14px 18px 16px;
  z-index: 200;
  color: #1e293b;
  min-width: 220px;
}
.login-popover.open { display: block; }
.login-popover-title {
  font-size: 12px;
  font-weight: 600;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}
.login-user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.login-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}
.login-user-name {
  font-size: 14px;
  font-weight: 500;
  color: #1e293b;
}
.login-user-handle {
  font-size: 12px;
  color: #64748b;
}
.login-logout-btn {
  width: 100%;
  padding: 6px 0;
  border: 1px solid #e2e8f0;
  background: #f8fafc;
  color: #64748b;
  border-radius: 5px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
}
.login-logout-btn:hover { background: #f1f5f9; color: #475569; }
.chip {
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 4px;
  padding: 3px 10px;
  font-size: 12px;
}
#chip-source {
  cursor: pointer;
  user-select: none;
}
#chip-source:hover { background: rgba(255,255,255,0.25); }

/* Date range popover */
.date-range-popover {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 20px;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  padding: 14px 16px 12px;
  z-index: 100;
  color: #1e293b;
  min-width: 320px;
}
.date-range-popover.open { display: block; }
.drp-row {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}
.drp-row label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex: 1;
}
.drp-row input[type="date"] {
  font-size: 13px;
  font-family: var(--mono);
  padding: 4px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  color: #1e293b;
  background: #f8fafc;
  width: 100%;
  box-sizing: border-box;
}
.drp-row input[type="date"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}
.drp-actions { display: flex; justify-content: flex-end; gap: 8px; }
.drp-btn {
  font-size: 12px;
  padding: 4px 14px;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--sans, sans-serif);
}
.drp-btn-ghost {
  background: transparent;
  border-color: #cbd5e1;
  color: #64748b;
}
.drp-btn-ghost:hover { background: #f1f5f9; }
.drp-btn-primary {
  background: var(--accent);
  color: #fff;
}
.drp-btn-primary:hover { opacity: 0.9; }

/* Expression panel */
.panel-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin: 0 0 6px;
}
.expr-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
}
.expr-row { display: flex; gap: 10px; align-items: stretch; }
.query-wrap {
  flex: 1;
  position: relative;
}
#query {
  flex: 1;
  resize: vertical;
  min-height: 140px;
  font-family: var(--mono);
  font-size: 14px;
  padding: 10px 40px 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fbfcfd;
  color: var(--text);
  width: 100%;
}
#query:focus { outline: none; border-color: var(--accent); }
#query.query-error { border-color: #e05252; background: #fff8f8; }
#query.query-error:focus { border-color: #c0392b; }
#copy-btn {
  position: absolute;
  right: 6px;
  top: 6px;
  height: 28px;
  width: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
  pointer-events: auto;
}
.history-save-buttons {
  position: absolute;
  right: 6px;
  top: 40px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  pointer-events: auto;
}
#history-btn, #save-btn {
  height: 28px;
  width: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}
#copy-btn:hover, #history-btn:hover, #save-btn:hover {
  background: #f0f3f6;
  color: var(--accent);
}
#copy-btn:active, #history-btn:active, #save-btn:active { background: #e8ecf0; }
#history-btn.active { background: #e8f0fb; color: var(--accent); border-color: var(--accent); }
.save-btn-hidden { display: none !important; }

/* History popover */
.history-popover {
  position: absolute;
  top: 6px;
  right: 40px;
  width: 300px;
  height: 300px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  z-index: 100;
  overflow: hidden;
  user-select: none;
  display: flex;
  flex-direction: column;
}
.history-popover[hidden] {
  display: none !important;
}
.history-popover-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
#history-clear-btn {
  background: none;
  border: none;
  font-size: 11px;
  color: var(--muted);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: normal;
  text-transform: none;
  letter-spacing: normal;
}
#history-clear-btn:hover { color: #a12121; background: #fdecec; }
.history-list {
  list-style: none;
  margin: 0;
  padding: 4px 0;
  flex: 1;
  overflow-y: auto;
  overflow-x: auto;
}
.history-item {
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 7px 12px;
  cursor: pointer;
  border-bottom: 1px solid #f0f3f6;
  transition: background 0.1s;
}
.history-item:last-child { border-bottom: none; }
.history-item:hover { background: #f5f8fb; }
.history-item-expr {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
}
.history-item-time {
  font-size: 10px;
  color: var(--muted);
}
.history-empty {
  padding: 16px 12px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}
.history-resize-handle {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 16px;
  height: 16px;
  cursor: nwse-resize;
  background: linear-gradient(135deg, transparent 50%, var(--border) 50%);
  border-radius: 0 0 8px 0;
}
#run-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
#run-btn:hover { background: var(--accent-dark); }
#run-btn:disabled { opacity: 0.6; cursor: default; }
.hint { font-size: 11px; color: var(--muted); margin-top: 6px; }
.hint kbd {
  background: #eceff2; border: 1px solid var(--border);
  border-radius: 3px; padding: 0 4px; font-family: var(--mono); font-size: 10px;
}
.error-banner {
  margin-top: 10px;
  background: #fdecec;
  border: 1px solid #f3b6b6;
  color: #a12121;
  padding: 8px 12px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13px;
  white-space: pre-wrap;
}

/* Body: left column + right sidebar */
.body {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 12px 380px;
  gap: 0;
  padding: 16px 20px;
  align-items: start;
}
.left-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
  padding-right: 8px;
}

.sidebar-divider {
  cursor: col-resize;
  width: 12px;
  background: transparent;
  user-select: none;
  transition: background 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  align-self: stretch;
  min-height: 100%;
}

.sidebar-divider::before {
  content: "";
  position: absolute;
  width: 4px;
  height: 32px;
  background: var(--border);
  border-radius: 2px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.sidebar-divider:hover::before,
.sidebar-divider.dragging::before {
  background: var(--accent);
  transform: scaleY(1.2);
}

.sidebar-divider:hover,
.sidebar-divider.dragging {
  background: rgba(43, 108, 176, 0.05);
}

.results-pane, .reference-pane {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
}
.reference-pane {
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 32px);
  overflow: auto;
  margin-left: 8px;
}
.results-pane { min-width: 0; }

.results-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.results-header .panel-label { margin: 0; }
.result-chip {
  font-size: 11px;
  font-family: var(--mono);
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 2px 8px;
  color: #64748b;
  white-space: nowrap;
}

/* Results */
#results .empty {
  color: var(--muted);
  font-size: 14px;
  padding: 24px 4px;
  text-align: center;
}

.searching-status {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.searching-date {
  font-size: 12px;
  font-family: var(--mono);
  color: var(--muted);
  min-height: 1.4em;
  letter-spacing: 0.02em;
}

.searching-found {
  font-size: 12px;
  font-family: var(--mono);
  color: var(--accent, #2563eb);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.stop-btn {
  margin-top: 6px;
  padding: 3px 10px;
  font-size: 11px;
  font-family: var(--sans, sans-serif);
  color: #b45309;
  background: #fef3c7;
  border: 1px solid #fcd34d;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.1s;
}
.stop-btn:hover:not(:disabled) { background: #fde68a; }
.stop-btn:disabled { opacity: 0.5; cursor: default; }

.carousel-wrapper {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  align-items: flex-start;
}

.match-carousel {
  flex: 1;
  min-width: 0;
}

.size-controls {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex-shrink: 0;
  align-self: center;
}

.size-btn {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px 6px;
  font-size: 10px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s;
  min-width: 24px;
  text-align: center;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.size-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.size-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.trunc-note {
  background: #fff7e6;
  border: 1px solid #f0d091;
  color: #8a5a00;
  font-size: 12px;
  padding: 7px 10px;
  border-radius: 6px;
  margin-bottom: 14px;
}
/* Match carousel (thumbnails) */
.match-carousel {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #fafbfc;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px;
  min-width: 0;
  max-width: 100%;
}

.carousel-scroll {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.carousel-scroll::-webkit-scrollbar {
  height: 2px;
}

.carousel-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.carousel-scroll::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 1px;
}

.carousel-thumbnails {
  display: flex;
  gap: 6px;
  min-width: min-content;
  padding: 2px 0;
}

.carousel-thumb {
  position: relative;
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  border: 2px solid transparent;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s;
  overflow: hidden;
}

.carousel-thumb canvas {
  width: 100%;
  height: 100%;
  display: block;
  background: #fff;
}

.carousel-thumb .thumb-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  font-size: 8px;
  padding: 1px 2px;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.carousel-thumb:hover {
  border-color: var(--accent);
  transform: scale(1.08);
}

.carousel-thumb.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}

.carousel-nav {
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--accent);
  font-size: 18px;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s;
  padding: 4px 8px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.carousel-nav:hover {
  opacity: 1;
  background: white;
}

/* Match detail (full chart) */
.match-detail {
  position: relative;
  margin-top: 16px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}

.detail-chart {
  position: relative;
  width: 100%;
  height: 520px;
  border-radius: 6px;
  overflow: hidden;
}

.chart-stats-overlay {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 10;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid #ddd;
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 12px;
  line-height: 1.5;
  pointer-events: none;
  box-shadow: 0 1px 4px rgba(0,0,0,0.10);
}

.chart-stats-overlay .stat-label {
  font-weight: 600;
  color: #555;
  letter-spacing: 0.03em;
  font-size: 10px;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.chart-stats-overlay .stat-row {
  display: flex;
  gap: 8px;
  align-items: baseline;
}

.chart-stats-overlay .stat-val {
  font-weight: 700;
  font-size: 13px;
}

.chart-stats-overlay .stat-val.bear { color: #c0392b; }
.chart-stats-overlay .stat-val.bull { color: #27ae60; }

.chart-stats-overlay .stat-secondary {
  color: #888;
  font-size: 11px;
}

.detail-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--accent);
  font-size: 36px;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
  padding: 8px 14px;
  z-index: 10;
  line-height: 1;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-nav.detail-nav-prev {
  left: 12px;
}

.detail-nav.detail-nav-next {
  right: 12px;
}

.detail-nav:hover {
  opacity: 1;
  background: white;
}

/* Explanation panel */
.explanation-panel {
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 12px;
}
.explanation-item {
  margin-bottom: 6px;
}
.explanation-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  padding: 4px 0;
}
.explanation-detail {
  font-size: 12px;
  color: var(--muted);
  font-weight: normal;
}
.explanation-children {
  margin-left: 14px;
  border-left: 2px solid #e0e5e9;
  padding-left: 10px;
  margin-top: 4px;
}

/* Match info panel */
.match-info-panel {
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 12px;
}
.panel-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}
.match-info-heading {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-dark);
  margin-bottom: 8px;
}
.match-info-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 11px;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.match-info-table th,
.match-info-table td {
  border: 1px solid var(--border);
  padding: 4px 6px;
  text-align: right;
}
.match-info-table th {
  background: #f5f7f9;
  font-weight: 600;
  color: var(--accent-dark);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.match-info-table th:first-child,
.match-info-table td:first-child {
  text-align: center;
}
.match-info-table th:nth-child(2),
.match-info-table td:nth-child(2) {
  text-align: center;
}
.match-info-table th:nth-child(3),
.match-info-table td:nth-child(3) {
  text-align: center;
}
.match-info-table tbody tr:nth-child(even) {
  background: #f9fafb;
}
.match-info-table tbody tr:hover {
  background: #f0f3f6;
}

/* Reference */
.ref-head { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }

.collapsible {
  cursor: pointer;
  user-select: none;
}

.collapsible.panel-head,
.collapsible.ref-head {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.chevron {
  display: inline-block;
  font-size: 12px;
  transition: transform 0.2s ease;
  color: var(--accent-dark);
  flex-shrink: 0;
  width: 16px;
  text-align: center;
}

.collapsible[data-collapsed="true"] .chevron {
  transform: rotate(-90deg);
}

.collapsible[data-collapsed="true"] + div,
.collapsible[data-collapsed="true"] ~ #ref-search,
.collapsible[data-collapsed="true"] ~ #reference {
  display: none;
}

#ref-search {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
}
#ref-search:focus { outline: none; border-color: var(--accent); }
.ref-section { border-top: 1px solid var(--border); }
.ref-section[hidden] { display: none; }
.ref-section > summary {
  cursor: pointer;
  padding: 8px 4px;
  font-weight: 600;
  font-size: 14px;
  color: var(--accent-dark);
  list-style: none;
}
.ref-section > summary::-webkit-details-marker { display: none; }
.ref-section > summary::before { content: "\25B8  "; color: var(--muted); }
.ref-section[open] > summary::before { content: "\25BE  "; }
.ref-body { padding: 0 6px 10px; font-size: 13px; line-height: 1.5; }
.ref-body pre {
  background: #f5f7f9;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 8px 10px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 12px;
}
.ref-body code { font-family: var(--mono); font-size: 12px; }
.ref-body table { border-collapse: collapse; width: 100%; font-size: 12px; }
.ref-body th, .ref-body td { border: 1px solid var(--border); padding: 4px 7px; text-align: left; }
.ref-body th { background: #f5f7f9; }
.ref-body h3 { font-size: 13px; margin: 10px 0 4px; }
.code-example-block {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 8px 0;
}
.code-run-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 11px;
  font-weight: bold;
  cursor: pointer;
  padding: 2px 6px;
  flex-shrink: 0;
  opacity: 0.5;
  transition: all 0.15s;
  border-radius: 3px;
}
.code-run-btn:hover {
  opacity: 1;
  background: rgba(43, 108, 176, 0.1);
}

/* Autocomplete popup */
.ac-popup {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 2px);
  background: var(--panel);
  border: 1px solid var(--accent);
  border-radius: 6px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.14);
  z-index: 200;
  max-height: 220px;
  overflow-y: auto;
  font-family: var(--mono);
  font-size: 13px;
}

.ac-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 5px 10px;
  cursor: pointer;
  border-bottom: 1px solid #f0f3f6;
  user-select: none;
}
.ac-item:last-child { border-bottom: none; }
.ac-item.ac-selected { background: #e8f0fb; }
.ac-item:hover { background: #f0f6ff; }

.ac-kw {
  font-weight: 700;
  color: var(--accent-dark);
  min-width: 120px;
  flex-shrink: 0;
  white-space: nowrap;
}
.ac-kw-match { color: var(--accent); }

.ac-desc {
  color: var(--muted);
  font-size: 11px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

/* Argument hint popup (non-selectable) */
.ac-popup.ac-is-hint {
  border-color: #f0a500;
}
.ac-hint {
  padding: 8px 12px;
}
.ac-hint-sig {
  font-weight: 700;
  color: var(--accent-dark);
  margin-bottom: 5px;
}
.ac-hint-params {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.ac-hint-param {
  color: var(--muted);
  font-size: 11px;
  padding-left: 10px;
}
.ac-hint-param::before {
  content: "→ ";
  color: #f0a500;
  font-weight: 700;
}

/* ---- Save Expression Modal ---------------------------------------------- */
.save-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
}
.save-modal-overlay[hidden] { display: none; }

.save-modal-dialog {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
  width: 560px;
  max-width: calc(100vw - 40px);
  max-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.save-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid #e2e8f0;
}

.save-modal-heading {
  font-size: 15px;
  font-weight: 600;
  color: #1e293b;
  margin: 0;
}

.save-modal-x {
  background: none;
  border: none;
  font-size: 18px;
  color: #94a3b8;
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
}
.save-modal-x:hover { color: #475569; }

.save-modal-body {
  overflow-y: auto;
  flex: 1;
}

.save-form-row {
  display: flex;
  align-items: flex-start;
  padding: 12px 20px;
  gap: 16px;
  border-bottom: 1px solid #f1f5f9;
}
.save-form-row:last-child { border-bottom: none; }

.save-form-label {
  font-size: 13px;
  font-weight: 500;
  color: #64748b;
  min-width: 110px;
  padding-top: 8px;
  flex-shrink: 0;
}

.save-form-value {
  flex: 1;
  min-width: 0;
}

.save-access-row .save-form-value {
  border-left: 3px solid #48bb78;
  padding-left: 12px;
}

.save-link-bar {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 8px;
}

.save-link-field {
  flex: 1;
  font-family: var(--mono);
  font-size: 12px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #f8fafc;
  color: var(--text);
  min-width: 0;
}

.save-link-copy-btn {
  height: 30px;
  width: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
  cursor: pointer;
  flex-shrink: 0;
}
.save-link-copy-btn:hover { background: #e2e8f0; color: var(--accent); }

.save-link-note {
  font-size: 12px;
  color: #64748b;
  line-height: 1.5;
}

.save-input-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  position: relative;
}

.save-text-input {
  flex: 1;
  padding: 7px 52px 7px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text);
  background: #fbfcfd;
  min-width: 0;
}
.save-text-input:focus { outline: none; border-color: var(--accent); }

.save-char-count {
  font-size: 11px;
  color: #94a3b8;
  position: absolute;
  right: 10px;
  pointer-events: none;
  white-space: nowrap;
}
.save-tag-char-count { right: 40px; }
.save-desc-textarea {
  resize: vertical;
  min-height: 72px;
  line-height: 1.4;
  align-self: flex-start;
  padding-bottom: 22px;
}
.save-input-wrap:has(.save-desc-textarea) { align-items: flex-start; }
.save-input-wrap:has(.save-desc-textarea) .save-char-count { top: auto; bottom: 6px; }

.save-tag-add-btn {
  width: 30px;
  height: 31px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.save-tag-add-btn:hover { background: var(--accent-dark); }

.save-no-tags {
  font-size: 13px;
  color: #94a3b8;
  font-style: italic;
  padding-top: 8px;
  display: block;
}

.save-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: 6px;
}

.save-tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #e8f0fb;
  color: var(--accent);
  border-radius: 4px;
  padding: 3px 8px;
  font-size: 12px;
}

.save-tag-remove {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 14px;
  padding: 0;
  line-height: 1;
  opacity: 0.7;
}
.save-tag-remove:hover { opacity: 1; }

.save-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 20px;
  border-top: 1px solid #e2e8f0;
  background: #f8fafc;
}

.save-action-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 5px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
}
.save-action-btn:hover { background: var(--accent-dark); }
.save-action-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.save-new-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 7px 16px;
  font-size: 13px;
  color: var(--accent);
  cursor: pointer;
  font-family: inherit;
}
.save-new-btn:hover { background: #e8f0fb; }

.save-cancel-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 7px 16px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
}
.save-cancel-btn:hover { background: #f1f5f9; color: var(--text); }