/* VKQUANT workspace. Applied only after successful shell initialization. */
body.vk-workspace {
  --vk-bg: #f5f7fb;
  --vk-surface: #fff;
  --vk-text: #172338;
  --vk-muted: #5f6f85;
  --vk-border: #dfe5ee;
  --vk-primary: #3558d8;
  --vk-accent: #7052d7;
  --vk-sidebar: 216px;
  --vk-header: 56px;
  --vk-space: 24px;
  --bg: var(--vk-bg);
  --text: var(--vk-text);
  --ink: var(--vk-text);
  --muted: var(--vk-muted);
  --line: var(--vk-border);
  --panel: var(--vk-surface);
  --paper: var(--vk-surface);
  --panel-strong: var(--vk-surface);
  --paper-strong: var(--vk-surface);
  --blue: var(--vk-primary);
  --blue-soft: #edf1ff;
  --shadow: 0 2px 8px #17233806;
  margin: 0;
  padding: var(--vk-header) 0 0 var(--vk-sidebar);
  background: var(--vk-bg);
  color: var(--vk-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.5;
}
.vk-workspace > .vk-shell, .vk-shell * { box-sizing: border-box; }
.vk-shell { font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--vk-text); }
.vk-shell a { text-decoration: none; color: inherit; }
.vk-shell button, .vk-shell input { font: inherit; margin: 0; letter-spacing: normal; text-transform: none; }
.vk-shell [hidden] { display: none !important; }
.vk-shell .vk-topbar {
  position: fixed; inset: 0 0 auto; height: var(--vk-header); z-index: 100;
  display: flex; align-items: center; gap: 24px; padding: 0 24px;
  background: #fff; border: 0; border-bottom: 1px solid var(--vk-border); border-radius: 0; box-shadow: none;
}
.vk-shell .vk-brand { flex: 0 0 168px; font-size: 18px; font-weight: 800; letter-spacing: -.7px; white-space: nowrap; }
.vk-shell .vk-brand-suffix { color: var(--vk-primary); }
.vk-shell .vk-breadcrumb { display: flex; align-items: center; gap: 12px; min-width: 0; font-size: 14px; }
.vk-shell .vk-breadcrumb-group, .vk-shell .vk-breadcrumb-separator { color: var(--vk-muted); }
.vk-shell .vk-breadcrumb strong { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: 14px; font-weight: 600; }
.vk-shell .vk-home-link { margin-left: auto; color: var(--vk-primary); white-space: nowrap; font-size: 14px; }
.vk-shell .vk-sidebar {
  position: fixed; inset: var(--vk-header) auto 0 0; width: var(--vk-sidebar); z-index: 99;
  padding: 16px 12px; background: #fff; border-right: 1px solid var(--vk-border);
  overflow: auto; overscroll-behavior: contain; scrollbar-width: thin;
}
.vk-shell .vk-nav-search { display: block; margin-bottom: 20px; }
.vk-shell .vk-nav-search-input { width: 100%; min-width: 0; height: 38px; padding: 8px 10px; border: 1px solid var(--vk-border); border-radius: 8px; background: #f8f9fc; color: var(--vk-text); box-shadow: none; }
.vk-shell .vk-nav-group { margin: 0 0 8px; padding: 0; border: 0; border-radius: 0; background: none; box-shadow: none; }
.vk-shell .vk-nav-heading { display: flex; align-items: center; justify-content: space-between; min-height: 36px; margin: 0; padding: 7px 10px; font-size: 13px; font-weight: 600; line-height: 1.5; color: var(--vk-muted); letter-spacing: .02em; cursor: pointer; list-style: none; }
.vk-shell .vk-nav-heading::-webkit-details-marker { display: none; }
.vk-shell .vk-nav-heading::after { content: "+"; font-size: 16px; font-weight: 400; }
.vk-shell .vk-nav-group[open] > .vk-nav-heading::after { content: "−"; }
.vk-shell .vk-nav-link { display: flex; align-items: center; min-height: 36px; padding: 7px 10px; margin: 2px 0; border: 0; border-radius: 6px; font-size: 14px; font-weight: 500; line-height: 1.5; background: transparent; color: #3e4d62; box-shadow: none; }
.vk-shell .vk-nav-link:hover { background: #f3f5fa; color: var(--vk-text); }
.vk-shell .vk-nav-link[aria-current="page"] { background: #edf1ff; color: #294dc7; font-weight: 700; box-shadow: inset 3px 0 var(--vk-primary); }
.vk-shell .vk-sidebar-footer { border-top: 1px solid var(--vk-border); padding-top: 12px; }
.vk-shell .vk-nav-empty { padding: 8px; color: var(--vk-muted); font-size: 14px; }
.vk-shell .vk-menu, .vk-shell .vk-backdrop { display: none; }
.vk-shell .vk-skip { position: fixed; top: -100px; left: 16px; z-index: 110; background: #fff; border: 2px solid var(--vk-primary); border-radius: 8px; padding: 10px 16px; }
.vk-shell .vk-skip:focus { top: 8px; }
.vk-workspace :focus-visible { outline: 2px solid var(--vk-primary); outline-offset: 3px; }
.vk-workspace .vk-main { width: 100%; max-width: 1680px; min-width: 0; margin: 0 auto; padding: var(--vk-space); }
.vk-workspace .vk-main > :first-child { margin-top: 0; }
.vk-workspace .vk-legacy-nav { display: none !important; }
.vk-workspace .vk-main > .topbar { min-height: 0; padding: 0 0 12px; margin: 0; background: none; border: 0; border-radius: 0; box-shadow: none; backdrop-filter: none; }
.vk-workspace .vk-main > .topbar > .brand { display: none; }
.vk-workspace .vk-main > .hero, .vk-workspace .vk-main > .panel, .vk-workspace .vk-main > .table-panel,
.vk-workspace .vk-main > .section, .vk-workspace .vk-main > .result-card {
  border: 1px solid var(--vk-border); border-radius: 12px; background: #fff; box-shadow: none; backdrop-filter: none; min-width: 0;
}
.vk-workspace .vk-main > .hero { padding: 20px 24px; margin-top: 0; margin-bottom: 20px; overflow: visible; }
.vk-workspace .vk-main > .hero::before, .vk-workspace .vk-main > .hero::after { display: none; }
.vk-workspace .vk-main h1 { font-size: 28px; line-height: 1.3; letter-spacing: -.025em; margin: 0 0 8px; color: var(--vk-text); }
.vk-workspace .vk-main h1 span { color: inherit; background: none; -webkit-text-fill-color: currentColor; }
.vk-workspace .vk-main h1 br { display: none; }
.vk-workspace .vk-main h1 .brand-link, .vk-workspace .vk-main h1 .brand-word { display: none; }
.vk-workspace .vk-main > .hero .eyebrow, .vk-workspace .vk-main > .hero > .badge-row { display: none; }
.vk-workspace .vk-main .hero-copy { max-width: 1050px; margin: 8px 0 16px; font-size: 14px; font-weight: 400; line-height: 1.7; }
.vk-workspace .vk-main .kicker { min-height: 0; padding: 0; margin: 0 0 8px; background: none; border: 0; box-shadow: none; font-size: 12px; letter-spacing: .04em; color: var(--vk-muted); }
.vk-workspace .vk-main .hero-header-row { gap: 12px; margin-bottom: 0; }
.vk-workspace .vk-main > .hero { gap: 12px; }
.vk-workspace .vk-main .hero-title-stack { gap: 6px; }
.vk-workspace .vk-main .hero-top .hero-pill { min-height: 0; padding: 0; border: 0; border-radius: 0; background: none; box-shadow: none; font-size: 12px; letter-spacing: .04em; color: var(--vk-muted); }
.vk-workspace .vk-main .hero-top .hero-pill::before { display: none; }
.vk-workspace .vk-main .page-view-tabs { min-height: 44px; padding: 4px; gap: 4px; border: 1px solid var(--vk-border); border-radius: 8px; background: var(--vk-surface); box-shadow: none; }
.vk-workspace .vk-main .page-view-tab { min-height: 36px; padding: 8px 12px; border-radius: 6px; font-size: 14px; font-weight: 600; background: transparent; box-shadow: none; }
.vk-workspace .vk-main .page-view-tab.is-active { color: var(--vk-primary); background: var(--blue-soft); box-shadow: none; }
.vk-workspace .vk-main .stat-grid { margin-top: 16px; gap: 12px; }
.vk-workspace .vk-main .stat-grid .stat { padding: 12px 16px; min-height: 0; border-radius: 8px; box-shadow: none; background: #f8f9fc; }
.vk-workspace .vk-main .stat-grid .stat strong { margin-top: 4px; font-size: 22px; line-height: 1.3; }
.vk-workspace .vk-main .stat-grid .stat > span { font-size: 12px; }
.vk-workspace .vk-main :is(.back-link, .hero-link-tube, .hero-link, .button, .input, .search, .sort-select, .market-tab) { border-radius: 8px; box-shadow: none; }
.vk-workspace .vk-main :is(.back-link, .hero-link-tube, .hero-link, .button, .market-tab) { font-size: 14px; font-weight: 600; }
.vk-workspace .vk-main :is(.input, .search, .sort-select) { min-height: 40px; font-size: 14px; }
.vk-workspace .vk-main :is(.table-panel, .panel, .board, .table-wrap, .table-scroll) { min-width: 0; }
.vk-workspace .vk-main table { font-variant-numeric: tabular-nums; }
.vk-workspace .vk-main :is(.table-wrap, .table-scroll) { max-width: 100%; overflow-x: auto; overscroll-behavior-x: contain; }
.vk-workspace .vk-main thead th { font-size: 13px; }
.vk-workspace .vk-main tbody td { font-size: 14px; }
.vk-workspace .vk-main .table-meta { font-size: 12px; }
/* The account controls remain in the original DOM with their existing handlers. */
.vk-workspace[data-vk-page="workspace"] .hero-actions > .hero-nav-group { display: none; }
.vk-workspace[data-vk-page="workspace"] .hero-actions { margin: 8px 0 0; gap: 0; }
.vk-workspace[data-vk-page="workspace"] .hero-actions-row--account { margin: 0; gap: 12px; }
.vk-workspace[data-vk-page="workspace"] .hero-actions-row--account .hero-nav-group-label { display: none; }
.vk-workspace[data-vk-page="workspace"] .hero-actions-row--account .hero-link { min-height: 36px; padding: 8px 12px; }
.vk-workspace[data-vk-page="workspace"] .share-calculator { margin-top: 16px; padding: 14px 16px; border-radius: 8px; box-shadow: none; background: #f8f9fc; }
.vk-workspace[data-vk-page="workspace"] .share-calculator-input { min-height: 40px; padding: 8px 12px; border-radius: 8px; font-size: 14px; }
.vk-workspace[data-vk-page="workspace"] .share-calculator-result { padding: 10px 14px; border-radius: 8px; }
/* Pilot: dense, aligned query controls rather than columns of stacked pills. */
.vk-workspace[data-vk-page="option-query"] .hero { gap: 12px; }
.vk-workspace[data-vk-page="option-query"] .hero-title-stack { gap: 4px; }
.vk-workspace[data-vk-page="option-query"] .hero-copy { margin: 0; }
.vk-workspace[data-vk-page="option-query"] .query-form { margin-top: 0; }
.vk-workspace[data-vk-page="option-query"] .field-label { letter-spacing: 0; text-transform: none; }
.vk-workspace .vk-related-tools { justify-self: start; max-width: 100%; padding: 0; border: 0; background: none; }
.vk-workspace .vk-related-tools > .hero-link-row { margin-top: 12px; }
.vk-workspace[data-vk-page="option-query"] .query-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); align-items: end; gap: 16px; }
.vk-workspace[data-vk-page="option-query"] .field-shell { min-width: 0; }
.vk-workspace[data-vk-page="option-query"] .field-label { font-size: 14px; margin-bottom: 6px; }
.vk-workspace[data-vk-page="option-query"] .segmented { display: flex; flex-wrap: nowrap; gap: 2px; padding: 3px; min-height: 40px; border: 1px solid var(--vk-border); border-radius: 8px; background: #f5f7fb; }
.vk-workspace[data-vk-page="option-query"] .segmented button { flex: 1; min-width: 0; min-height: 32px; padding: 5px 6px; font-size: 14px; font-weight: 500; border: 0; border-radius: 5px; box-shadow: none; background: transparent; white-space: nowrap; }
.vk-workspace[data-vk-page="option-query"] .segmented button.is-active { background: #fff; color: var(--vk-primary); box-shadow: 0 1px 3px #17233818; }
.vk-workspace[data-vk-page="option-query"] .query-grid > :nth-child(7) { grid-column: span 2; }
.vk-workspace[data-vk-page="option-query"] .check-row { margin-top: 16px; }
.vk-workspace[data-vk-page="option-query"] .ticker-picker-panel { margin-top: 16px; border-radius: 8px; }
.vk-workspace[data-vk-page="stocks"] .toolbar { align-items: flex-start; gap: 12px; padding: 16px; }
.vk-workspace[data-vk-page="stocks"] .controls { flex: 1; justify-content: flex-start; gap: 8px; }
.vk-workspace[data-vk-page="stocks"] .search { width: 230px; max-width: 100%; }
.vk-workspace[data-vk-page="stocks"] .sort-select { width: auto; max-width: 100%; }
.vk-workspace[data-vk-page="stocks"] .toolbar { display: block; }
.vk-workspace[data-vk-page="stocks"] .market-tabs { margin-bottom: 12px; }
.vk-workspace .vk-advanced-filters { margin: 0; padding: 0; border: 0; background: transparent; min-width: 0; }
.vk-workspace .vk-advanced-summary { min-height: 40px; padding: 8px 12px; border: 1px solid var(--vk-border); border-radius: 8px; color: var(--vk-primary); cursor: pointer; font-size: 14px; }
.vk-workspace .vk-advanced-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding: 16px 0 0; }
.vk-workspace .vk-advanced-field { display: grid; gap: 6px; min-width: 0; font-size: 13px; color: var(--vk-muted); }
.vk-workspace .vk-advanced-filters[open] { flex-basis: 100%; }
/* Reader and large visual canvases retain their dedicated content geometry. */
.vk-workspace[data-vk-layout="reader"] .vk-main { max-width: 1120px; }
.vk-workspace[data-vk-layout="canvas"] .vk-main { max-width: none; }
/* Existing strategy tools already offer dark mode; keep that preference usable. */
body.vk-workspace.theme-dark {
  --vk-bg: #0d1420; --vk-surface: #16202f; --vk-text: #e8eef8;
  --vk-muted: #a6b5c9; --vk-border: #2a3648; --vk-primary: #8eafff;
  --blue-soft: #202f4b;
}
.vk-workspace.theme-dark .vk-shell :is(.vk-topbar, .vk-sidebar, .vk-menu, .vk-skip),
.vk-workspace.theme-dark .vk-main > :is(.hero, .panel, .table-panel, .section, .result-card) { background: var(--vk-surface); color: var(--vk-text); }
.vk-workspace.theme-dark .vk-shell .vk-nav-search-input { background: var(--vk-bg); }
.vk-workspace.theme-dark .vk-shell .vk-nav-link { color: var(--vk-muted); }
.vk-workspace.theme-dark .vk-shell .vk-nav-link:hover,
.vk-workspace.theme-dark .vk-shell .vk-nav-link[aria-current="page"] { background: #202f4b; color: var(--vk-primary); }
.vk-workspace[data-vk-page="algorithms"] > header { padding: 24px; background: var(--vk-surface); color: var(--vk-text); border-bottom: 1px solid var(--vk-border); }
.vk-workspace[data-vk-page="algorithms"] > header h1 { font-size: 28px; }
.vk-workspace[data-vk-page="algorithms"] .vk-main { grid-template-columns: 200px minmax(0, 1fr); gap: 24px; }
.vk-workspace[data-vk-page="algorithms"] .vk-main > nav { top: 72px; max-height: calc(100dvh - 96px); overflow: auto; }
.vk-workspace[data-vk-page="algorithms"] .vk-main section { scroll-margin-top: 76px; }
@media (min-width: 961px) and (max-width: 1200px) {
  .vk-workspace { --vk-sidebar: 192px; --vk-space: 18px; }
  .vk-shell .vk-brand { flex-basis: 144px; }
  .vk-workspace[data-vk-page="option-query"] .query-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 960px) {
  body.vk-workspace { padding-left: 0; --vk-space: 20px; }
  .vk-shell .vk-topbar { padding: 0 16px; gap: 16px; }
  .vk-shell .vk-menu { display: inline-flex; flex: 0 0 36px; align-items: center; justify-content: center; height: 36px; padding: 0; border: 1px solid var(--vk-border); border-radius: 8px; color: var(--vk-text); background: #fff; cursor: pointer; }
  .vk-shell .vk-brand { flex-basis: auto; }
  .vk-shell .vk-sidebar { width: 260px; transform: translateX(-100%); visibility: hidden; }
  .vk-nav-open .vk-shell .vk-sidebar { transform: none; visibility: visible; }
  .vk-nav-open .vk-shell .vk-backdrop { display: block; position: fixed; inset: var(--vk-header) 0 0; z-index: 98; width: 100%; height: calc(100dvh - var(--vk-header)); padding: 0; border: 0; border-radius: 0; background: #17233855; }
  body.vk-nav-open { overflow: hidden; }
}
@media (max-width: 640px) {
  body.vk-workspace { --vk-space: 12px; }
  .vk-shell .vk-breadcrumb-group, .vk-shell .vk-breadcrumb-separator, .vk-shell .vk-home-link { display: none; }
  .vk-shell .vk-topbar { gap: 12px; }
  .vk-shell .vk-brand { font-size: 16px; }
  .vk-shell .vk-breadcrumb { margin-left: auto; }
  .vk-workspace .vk-main > .hero { padding: 16px; }
  .vk-workspace .vk-main h1 { font-size: 24px; }
  .vk-workspace .vk-main .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .vk-workspace .vk-main .stat-grid .stat { padding: 10px 12px; }
  .vk-workspace[data-vk-page="stocks"] .stat-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .vk-workspace[data-vk-page="option-query"] .query-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .vk-workspace[data-vk-page="option-query"] .query-grid > :nth-child(7) { grid-column: 1 / -1; }
  .vk-workspace[data-vk-page="option-query"] .segmented button { font-size: 14px; }
  .vk-workspace[data-vk-page="stocks"] .controls { width: 100%; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .vk-workspace[data-vk-page="stocks"] .search { width: 100%; grid-column: 1 / -1; }
  .vk-workspace[data-vk-page="stocks"] .sort-select { width: 100%; min-width: 0; }
  .vk-workspace[data-vk-page="stocks"] .vk-advanced-filters { grid-column: 1 / -1; }
  .vk-workspace .vk-advanced-fields { grid-template-columns: 1fr; }
  .vk-workspace .vk-main :is(input, select, textarea) { font-size: 16px; }
  .vk-workspace[data-vk-page="algorithms"] .vk-main { display: block; }
  .vk-workspace[data-vk-page="algorithms"] .vk-main > nav { position: static; max-height: 220px; margin-bottom: 20px; }
}
@media print {
  body.vk-workspace { padding: 0; background: #fff; }
  .vk-workspace > .vk-shell { display: none; }
  .vk-workspace .vk-main { max-width: none; padding: 0; }
}