/* The unified product shell (V3-P2, ROADMAP_APP_V3 §2 D1/D2 — STYLE_GUIDE §4.2/§5).
 *
 * ONE shell for every data page. Before this file there were two: script.js's Data/Reference
 * sidebar (styled in style.css) and the sector app's self-contained .pa-side (styled in
 * sectorapp.css). They had drifted in seven visible ways; this file is the merge, ported from
 * docs/design/sector-app-prototype-v3/prototype.dc.html:36-70 onto style.css's :root tokens.
 *
 * Rendered by shell.js. Pages carry only the empty mounts (#appSide / #appScrim / #appTopbar),
 * so the link set lives in exactly one place.
 *
 * Load order (STYLE_GUIDE §5): style.css -> app.css -> shell.css -> the page's own CSS. */

body.app {
  --topbar-h: 56px;
  --ctx-h: 0px;
  --side-w: 210px; /* the prototype's rail width */
  /* --rule is the app-wide hairline divider (~11 uses across sectorapp.css for row/section
     borders). The prototype defines it in :root; style.css does not. Defined here, on the shell
     root, so every page inside the shell gets it -- it used to be scoped to .pa-app, which meant
     only the sector app had it. Aliased to style.css's identical --border-tint-rule. */
  --rule: var(--border-tint-rule);
  display: flex;
  min-height: 100vh;
}

/* ---------- sidebar ---------- */

.app-side {
  width: var(--side-w);
  flex: 0 0 var(--side-w);
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100dvh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  padding: 18px 14px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  z-index: 70;
}

.shell-brand {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 0 6px 16px;
  text-decoration: none;
}
.shell-brand-name { font-weight: 900; font-size: 19px; letter-spacing: -0.02em; color: var(--ink); }
.shell-brand-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mono-muted);
}

.shell-nav-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mono-muted);
  padding: 14px 8px 4px;
}
.shell-nav-label:first-of-type { padding-top: 6px; }

/* One rule for BOTH live links (<a>) and planned labels (<span>) so they align pixel-for-pixel;
   the difference is carried entirely by .is-planned below. */
.shell-nav-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 7px;
  align-items: center;
  padding: 7px 9px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink-muted);
  text-decoration: none;
}
a.shell-nav-item:hover { background: var(--bg-badge); color: var(--ink); }
.shell-nav-item.is-current {
  background: var(--accent-wash);
  color: var(--accent-ink);
  font-weight: 700;
}

/* Planned-and-inert (STYLE_GUIDE §10.1): NOT a link -- shell.js emits a <span>, so there is no
   href and no handler to regress. Drained to the same --mono-muted an N/A value uses, and the
   cursor does not invite a click. Its title names what the subject will hold. */
.shell-nav-item.is-planned {
  color: var(--mono-muted);
  cursor: default;
}
.shell-planned-badge {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mono-muted);
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  padding: 1px 5px;
}

.shell-side-foot {
  margin-top: auto;
  padding: 12px 8px 0;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 9.5px;
  line-height: 1.5;
  color: var(--mono-muted);
}
.shell-side-foot a { color: var(--mono-muted); text-decoration: none; }
.shell-side-foot a:hover { color: var(--ink); }

/* ---------- main column + topbar ---------- */

.app-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.app-topbar {
  position: sticky;
  top: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 11px 28px;
  /* --bg-page at 90% + blur, per the prototype: content scrolls under the bar without ghosting.
     Literal rgba because color-mix on a var is not worth the support matrix here; this product
     has a single light theme (no prefers-color-scheme anywhere in the CSS). */
  background: rgba(246, 243, 238, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.topbar-menu {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  cursor: pointer;
}
.topbar-menu span {
  display: block;
  height: 2px;
  margin: 0 7px;
  background: var(--ink);
  border-radius: 2px;
}

.shell-search {
  flex: 1;
  max-width: 440px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  margin: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
}
.shell-search:focus-within { border-color: var(--accent); }
.shell-search-ic { font-family: var(--font-mono); font-size: 12px; color: var(--mono-muted); }
.shell-search-input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  padding: 0;
}
.shell-search-input::placeholder { color: var(--mono-muted); }
.shell-search-input:focus { outline: none; }
.shell-kbd {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--mono-muted);
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  padding: 1px 5px;
}

.shell-apiref {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-ink);
  background: var(--accent-wash);
  border: 1px solid var(--accent-wash);
  padding: 6px 11px;
  border-radius: 8px;
  text-decoration: none;
}
.shell-apiref:hover { color: var(--accent-ink); border-color: var(--accent); }

/* ---------- view rail + viewport (pages with 2+ views) ---------- */

.shell-body { display: flex; gap: 20px; align-items: flex-start; }
/* 178px is the prototype's. At V3-P2's 132px the Institutional view's section jump list wrapped
   six of its seven labels to two lines and one to three; the prototype wraps three. Widening the
   rail is also what lands the content column on its designed 694px -- see .page's note in app.css
   for the full arithmetic. */
/* The rail's MOUNT HOST must span the row, or the sticky rail has nowhere to travel.
   `.shell-body` is `align-items: flex-start`, so the host shrink-wraps to the rail's own height
   (549px) — and a sticky element is bounded by its parent's box, so the rail unstuck itself the
   moment you scrolled past 549px and rode away with the page. The prototype's <nav> is a direct
   child of the 7,300px flex row, which is why its rail stays put. Caught by the operator at the
   V3-P5a fidelity gate; every measurement passed because a static capture cannot see it. */
.shell-rail-host { align-self: stretch; }
.shell-rail { width: 178px; flex: none; position: sticky; top: 74px; }
.shell-rail-label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mono-muted);
  padding: 0 4px 8px;
}
.shell-rail-btn {
  cursor: pointer;
  display: block;
  width: 100%;
  text-align: left;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 8px 11px;
  margin-bottom: 4px;
}
.shell-rail-btn:hover { background: var(--bg-badge); color: var(--ink); }
.shell-rail-btn.active { background: var(--accent-wash); color: var(--accent-ink); border-color: var(--accent-wash); }
.shell-rail-rule { height: 1px; background: var(--rule); margin: 12px 4px; }

/* Section jump list (V3-P5a) — only rendered for a view that declares sections. Read off the v3
   prototype's own rail: mono 11.5px, the number in a fixed 20px gutter, and the active row marked
   by a 2px accent edge and a wash rather than a filled pill (the filled pill is the VIEW's
   affordance; a section is a place on the page you are already on, not a different page). */
.shell-sections { display: flex; flex-direction: column; gap: 1px; }
.shell-sec {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 7px;
  align-items: baseline;
  padding: 6px 8px;
  border-left: 2px solid transparent;
  border-radius: 0 6px 6px 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.35;
  color: var(--ink-muted);
  text-decoration: none;
}
.shell-sec:hover { background: var(--bg-badge); color: var(--ink); }
.shell-sec.active { background: var(--accent-wash); border-left-color: var(--accent); color: var(--accent-ink); }
.shell-sec-n { font-size: 9.5px; color: var(--mono-muted); }
.shell-sec.active .shell-sec-n { color: var(--accent-ink); }
.shell-rail-note {
  font-family: var(--font-mono);
  font-size: 9.5px;
  line-height: 1.5;
  color: var(--mono-muted);
  padding: 0 4px;
}
/* 976 = 694 content + 20 + 262 right rail. The old 960 cap bound BEFORE the content reached its
   designed width, so raising it is what lets the arithmetic above resolve. On a page with no right
   rail the viewport simply takes the whole 976. */
.shell-viewport { flex: 1; min-width: 0; max-width: 976px; }

/* Below 1024px the rail stops being a column and rides above the content as a scrollable strip --
   a 132px sticky column on a phone would eat half the width. */
@media (max-width: 1023px) {
  .shell-body { display: block; }
  .shell-rail {
    position: static;
    width: auto;
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding-bottom: 10px;
    margin-bottom: 14px;
    border-bottom: 1px solid var(--rule);
  }
  .shell-rail-btn { width: auto; flex: none; margin-bottom: 0; white-space: nowrap; }
  .shell-rail-label,
  .shell-rail-rule,
  .shell-rail-note,
  /* The jump list is a wide-screen affordance. Folded into a horizontal strip it would double the
     rail's length and compete with the views for the same scroll; on a phone the sections are a
     thumb-flick apart anyway. */
  .shell-sections { display: none; }
  .shell-viewport { max-width: none; }
}

/* ---------- entity control bar (pages with ONE focal entity) ---------- */

.shell-entity {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 14px 16px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.shell-entity-cell { display: flex; flex-direction: column; gap: 3px; }
.shell-entity-label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mono-muted);
}
.shell-entity-value { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.shell-entity-value.is-mono { font-family: var(--font-mono); font-size: 13px; font-weight: 400; }
/* The focal identity (ticker / manager name) reads as the entity you are looking at. */
.shell-entity-value.is-primary { font-family: var(--font-mono); font-size: 19px; font-weight: 600; line-height: 1; }
/* A value that has not resolved yet renders drained -- never a guess, never 0 (STYLE_GUIDE §7). */
.shell-entity-value.is-pending { color: var(--mono-muted); font-weight: 400; }
.shell-entity-sep { width: 1px; height: 34px; background: var(--rule); }

/* ---------- scrim + off-canvas drawer (< 1024px) ---------- */

.app-scrim {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 65;
  background: rgba(28, 26, 22, 0.28);
}

.shell-brand:focus-visible,
a.shell-nav-item:focus-visible,
.shell-rail-btn:focus-visible,
.topbar-menu:focus-visible,
.shell-apiref:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 1023px) {
  .app-side {
    position: fixed;
    left: 0;
    top: 0;
    transform: translateX(-100%);
    box-shadow: none;
  }
  body.app.side-open .app-side {
    transform: translateX(0);
    box-shadow: 24px 0 60px -30px rgba(40, 30, 15, 0.45);
  }
  body.app.side-open .app-scrim { display: block; }
  .topbar-menu { display: flex; }
  .app-topbar { padding: 11px 20px; gap: 12px; }

  /* A closed drawer must be neither clickable nor focusable. Off-screen is not enough: the panel
     still sits over the topbar (z-index 70 > 60), so without this a tap on the hamburger right
     after closing lands on the sidebar's brand link and navigates to "/" instead of reopening --
     and the closed drawer's links stay in the tab order. pointer-events flips instantly (so the
     re-tap works even mid-slide) while visibility waits out the transition, keeping the slide-out
     visible. Inherited untouched from the retired script.js shell, which had the same latent bug. */
  .app-side { pointer-events: none; visibility: hidden; }
  body.app.side-open .app-side { pointer-events: auto; visibility: visible; }
  @media (prefers-reduced-motion: no-preference) {
    .app-side { transition: transform 0.18s ease, visibility 0s linear 0.18s; }
    body.app.side-open .app-side { transition: transform 0.18s ease, visibility 0s; }
  }
}

@media (max-width: 640px) {
  .shell-apiref { display: none; }
  .shell-kbd { display: none; }
  .shell-entity { gap: 14px; }
  .shell-entity-sep { display: none; }
}

/* ---------- page-level bits the shell owns ---------- */

/* Compact context: data pages don't need the 36px marketing masthead. */
body.app .masthead h1 { font-size: 27px; }
body.app .rule-double { margin-top: 12px; }
body.app .lede { font-size: 14.5px; }

/* Context bar height is only reserved where .controls reliably fits one line; below
 * this width the bar wraps and simply scrolls away (no sticky), so --ctx-h stays 0. */
@media (min-width: 1100px) {
  body.app.has-ctx { --ctx-h: 58px; }
}