/* ============================================================
   val26 — shared shell (nav rail, mobile drawer, page header,
   shared lens components). Reads tokens.css. Loaded on every page.
   The nav MARKUP is single-sourced in app/_shell.html and synced
   into pages by scripts/sync-shell.mjs — this file only styles it.
   ============================================================ */
* , *::before, *::after { box-sizing: border-box; }
html { height: 100%; }
body {
  margin: 0;
  background: var(--page-bg);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  min-height: 100%;
}
a { color: var(--ink); }
a:hover { color: var(--secondary); }

/* Accessibility: skip link */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: #fff; padding: 8px 14px;
  border-radius: 0 0 var(--radius-btn) 0; font: 600 13px var(--font-body);
  text-decoration: none;
}
.skip-link:focus { left: 0; }

/* ---------- Desktop rail (>=920px) ---------- */
.rail {
  position: fixed; left: 0; top: 0; bottom: 0; width: var(--rail-w);
  background: var(--rail-bg); border-right: 1px solid var(--border);
  padding: 22px 16px; overflow-y: auto; z-index: 40;
}
.rail__title {
  display: block; font: 600 14px/1.3 var(--font-serif);
  letter-spacing: -.01em; color: var(--ink);
  margin-bottom: 20px; text-decoration: none;
}
.rail__title span { color: var(--muted); }
.rail__eyebrow, .drawer__eyebrow {
  font: 700 9px/1 var(--font-body); letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 8px;
}
.rail__items { display: flex; flex-direction: column; gap: 2px; }
.navitem {
  display: block; text-decoration: none; background: transparent;
  border-radius: var(--radius-btn); padding: 9px 11px;
  transition: background .15s;
}
.navitem:hover { background: var(--soft-border); }
.navitem__q {
  display: block; font: 600 13px/1.35 var(--font-serif); color: var(--body);
}
.navitem__lens {
  display: block; font: 600 8.5px/1.2 var(--font-body); letter-spacing: .06em;
  text-transform: uppercase; color: var(--faint); margin-top: 4px;
}
/* Active lens */
.navitem.is-active { background: var(--ink); }
.navitem.is-active:hover { background: var(--ink); }
.navitem.is-active .navitem__q,
.navitem.is-active .navitem__lens { color: #fff; }
.rail__method {
  display: block; margin-top: 18px; padding: 6px 11px;
  font: 600 11.5px var(--font-body); color: var(--secondary); text-decoration: none;
}
.rail__method.is-active { font-weight: 700; border-left: 3px solid var(--ink); }

/* ---------- Mobile topbar + drawer (<920px) ---------- */
.topbar {
  display: none; background: var(--card); border-bottom: 1px solid var(--border);
  padding: 11px 18px; align-items: center; gap: 14px;
  position: sticky; top: 0; z-index: 45;
}
.topbar__burger {
  appearance: none; border: none; background: none; cursor: pointer;
  display: flex; flex-direction: column; gap: 4px; padding: 8px 6px;
}
.topbar__burger span { width: 20px; height: 2px; background: var(--ink); border-radius: 2px; }
.topbar__title { font: 600 15px var(--font-serif); letter-spacing: -.01em; color: var(--ink); text-decoration: none; }
.topbar__title span { color: var(--muted); }

.drawer[hidden] { display: none; }
.drawer__scrim { position: fixed; inset: 0; background: rgba(28,28,28,.3); z-index: 50; }
.drawer__panel {
  position: fixed; top: 0; bottom: 0; left: 0; width: min(320px, 84vw);
  background: var(--rail-bg); border-right: 1px solid var(--border-strong);
  box-shadow: var(--shadow-drawer); z-index: 51; padding: 22px 18px;
  overflow-y: auto;
}
.drawer .navitem__q { font-size: 15px; }
.drawer .navitem__lens { font-size: 9px; }

/* ---------- Content wrapper ---------- */
.shell-main { margin-left: var(--rail-w); min-height: 100vh; display: flex; flex-direction: column; }
.shell-wrap {
  width: 100%; max-width: var(--content-max); margin: 0 auto;
  padding: 48px var(--side-pad) 56px;
}
.shell-main.is-wide .shell-wrap { max-width: var(--content-max-wide); }

@media (max-width: 919.98px) {
  .rail { display: none; }
  .topbar { display: flex; }
  .shell-main { margin-left: 0; }
  .shell-wrap { padding: 28px var(--side-pad) 48px; }
}

/* ============================================================
   Shared lens components (consumed by every phase)
   ============================================================ */

/* Full-bleed page header band with area tone (crossfades on area change).
   Sits inside .shell-main (right of the rail), spans that width; inner
   content is width-capped to match the lens body. */
.lens-band {
  background: var(--header-tone, var(--area-neutral));
  transition: background var(--tone-fade) ease;
}
.lens-band__inner {
  max-width: var(--content-max); margin: 0 auto;
  padding: 30px var(--side-pad) 26px;
}
.shell-main.is-wide .lens-band__inner { max-width: var(--content-max-wide); }

/* Rounded-card header variant (used by not-yet-built placeholder pages) */
.lens-header {
  background: var(--header-tone, var(--area-neutral));
  transition: background var(--tone-fade) ease;
  border-radius: var(--radius-card);
  padding: 28px 28px 26px; margin-bottom: 28px;
}
.lens-pill {
  display: inline-block; background: var(--card); color: var(--secondary);
  font: 700 9.5px/1 var(--font-body); letter-spacing: .08em; text-transform: uppercase;
  padding: 6px 12px; border-radius: var(--radius-pill);
}
.lens-updated { font: 500 11px var(--font-body); color: var(--muted); margin-left: 10px; }
.lens-h1 {
  margin: 16px 0 0; font: 600 clamp(26px, 5vw, 36px)/1.12 var(--font-serif);
  letter-spacing: -.015em; text-wrap: pretty;
}
.lens-intro { margin: 12px 0 0; max-width: 620px; font: 400 15px/1.6 var(--font-body); color: var(--body); text-wrap: pretty; }

/* Stat trio (count-up) */
.stat-row { display: flex; gap: 36px; margin-top: 22px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat__val { font: 700 34px/1 var(--font-body); font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.stat__label { font: 500 11px var(--font-body); color: var(--muted); }

/* Party chips (mirror graph nodes; multi-select filter/dim) */
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chip {
  appearance: none; cursor: pointer; display: inline-flex; align-items: center; gap: 7px;
  border: 2px solid var(--border); background: var(--card); color: var(--secondary);
  border-radius: 20px; padding: 7px 14px;
  font: 700 13px var(--font-body); transition: background .15s, border-color .15s, opacity .15s;
}
.chip:hover { border-color: var(--muted); }
.chip__dot { width: 11px; height: 11px; border-radius: 50%; flex-shrink: 0; }
.chip.is-selected { color: #fff; border-color: transparent; }
.chip.is-dimmed { opacity: .18; }
.chip-clear {
  appearance: none; border: none; background: none; cursor: pointer;
  font: 600 12px var(--font-body); color: var(--secondary); text-decoration: underline;
}

/* Area tabs */
.area-tabs { display: flex; flex-wrap: wrap; gap: 6px; }
.area-tab {
  appearance: none; cursor: pointer; border: 1px solid var(--border); background: var(--card);
  color: var(--secondary); border-radius: var(--radius-btn); padding: 7px 12px;
  font: 600 12.5px var(--font-body); transition: background .15s, color .15s;
}
.area-tab:hover { color: var(--ink); }
.area-tab.is-active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* Generic card + dimming for graph nodes */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-card); padding: var(--space-lg); }
.is-dimmed { opacity: .18; }

/* Placeholder note (Phase-0 scaffolding; removed as lenses are built) */
.phase-stub {
  border: 1px dashed var(--track); border-radius: var(--radius-card);
  padding: 28px; color: var(--secondary); font: 400 14px/1.6 var(--font-body);
  background: var(--rail-bg);
}
.phase-stub strong { color: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}