/* ── Reset & base ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Shell (navy) */
  --color-shell:       #152240;
  --color-shell-deep:  #0e1a30;
  --color-shell-hover: rgba(255,255,255,0.07);
  --color-shell-border:#1e3260;
  --color-shell-text:  #e8edf8;
  --color-shell-muted: #7b92bc;

  /* Content (light) */
  --color-bg:          #f0f3f8;
  --color-surface:     #ffffff;
  --color-border:      #dde2ed;
  --color-text:        #111827;
  --color-muted:       #6b7280;

  /* Brand */
  --color-brand:       #0034A5;
  --color-brand-cream: #FAF9F5;

  /* Accent */
  --color-accent:      #3b7eff;
  --color-accent-dim:  rgba(59,126,255,0.12);
  --color-accent-nav:  #7eb3ff;

  /* Badges */
  --color-badge-new:   #0ea96a;
  --color-badge-upd:   #d97706;

  /* Layout */
  --rail-width:        240px;
  --header-height:     56px;
  --font:              'Inter', system-ui, -apple-system, sans-serif;
  --radius:            8px;
  --transition:        180ms ease;

  /* ── Site-wide design system tokens (added 2026-05-01) ──────────
     Consumed by content pages (SEC explorer, FRED dashboard,
     Prospectus issuance) when they <link> this stylesheet.
     Shell tokens above are unchanged. ────────────────────────── */

  /* Accent — content pages on light backgrounds */
  --color-accent-strong:     #1e40af;
  --color-accent-active-bg:  #dbeafe;
  --color-accent-hover-bg:   #f5f5f5;
  --color-accent-hover-bg-2: #e2e8f0;
  --color-row-hover:         #f0f7ff;

  /* Surfaces */
  --color-surface-alt:       #f8fafc;
  --color-surface-table-hdr: #f1f5f9;

  /* Borders (additional roles) */
  --color-border-soft:       #f0f0f0;
  --color-border-strong:     #94a3b8;

  /* Type scale */
  --type-xs:   11px;
  --type-sm:   12px;
  --type-base: 13px;
  --type-md:   14px;
  --type-lg:   16px;
  --type-xl:   18px;

  /* Radii (existing --radius is the lg = 8px) */
  --radius-sm: 4px;
  --radius-md: 6px;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;

  /* Shadows */
  --shadow-popover: 0 4px 14px rgba(0,0,0,0.12);
  --shadow-tooltip: 0 4px 14px rgba(0,0,0,0.25);

  /* Touch target minimums (Apple HIG = 44px) */
  --touch-target:    44px;
  --touch-target-sm: 36px;
}

html, body {
  height: 100%;
  background: var(--color-shell);
  color: var(--color-text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout shell ──────────────────────────────────────────────── */
#app {
  display: grid;
  grid-template-rows: var(--header-height) 1fr;
  grid-template-columns: var(--rail-width) 1fr;
  grid-template-areas:
    "header header"
    "rail   main";
  height: 100dvh;
  overflow: hidden;
}

/* ── Header ────────────────────────────────────────────────────── */
#header {
  grid-area: header;
  display: flex;
  align-items: center;
  /* Honor iOS notch — viewport-fit=cover lets content extend edge-to-edge
     so the page can bleed under the side bars; this keeps header content
     out of the notch while still using the full viewport. */
  padding: 0 max(20px, env(safe-area-inset-right)) 0 max(20px, env(safe-area-inset-left));
  background: var(--color-shell-deep);
  border-bottom: 1px solid var(--color-shell-border);
  gap: 12px;
  z-index: 10;
}

#header .brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

#header .brand-logo {
  height: 36px;
  width: auto;
  display: block;
}

#header .header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 16px;
}

#header .header-right a {
  font-size: 13px;
  color: var(--color-shell-muted);
  text-decoration: none;
  transition: color var(--transition);
}

#header .header-right a:hover { color: var(--color-shell-text); }

/* SUBSCRIBE CTA — emerald green to distinguish from the blue
   selected-nav-pill state (both used the same accent blue before, which
   read as the same UI affordance). Green is the convention for
   subscribe/sign-up CTAs across SaaS (Substack, MailChimp, etc.). */
#header .header-right .btn-primary {
  background: #10b981;
  color: #fff;
  padding: 6px 14px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

#header .header-right .btn-primary:hover {
  background: #059669;
  color: #fff;
}

/* ── Left rail ─────────────────────────────────────────────────── */
#rail {
  grid-area: rail;
  background: var(--color-shell);
  border-right: 1px solid var(--color-shell-border);
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px 0 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-shell-border) transparent;
}

#rail::-webkit-scrollbar { width: 4px; }
#rail::-webkit-scrollbar-thumb { background: var(--color-shell-border); border-radius: 2px; }

/* ── Accordion section ─────────────────────────────────────────── */
.nav-section { margin-bottom: 2px; }

.nav-section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  cursor: pointer;
  user-select: none;
  transition: background var(--transition);
  position: relative;
}

.nav-section-header:hover { background: var(--color-shell-hover); }
.nav-section-header.open  { background: var(--color-shell-hover); }

.nav-section-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-accent-nav);
  opacity: 0.9;
}

.nav-section-label {
  flex: 1;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-shell-text);
  letter-spacing: 0.01em;
}

.nav-chevron {
  width: 14px;
  height: 14px;
  color: var(--color-shell-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.nav-section-header.open .nav-chevron { transform: rotate(90deg); }

/* ── Badge ─────────────────────────────────────────────────────── */
.badge {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 3px;
  flex-shrink: 0;
}

.badge-new     { background: var(--color-badge-new); color: #fff; }
.badge-updated { background: var(--color-badge-upd); color: #fff; }

/* ── Nav items (inside accordion) ─────────────────────────────── */
.nav-items {
  display: none;
  padding: 2px 0 6px;
}

.nav-items.open { display: block; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 16px 7px 38px;
  cursor: pointer;
  color: var(--color-shell-muted);
  font-size: 13px;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
  position: relative;
}

.nav-item-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-accent-nav);
  opacity: 0.85;
}

.nav-item:hover {
  background: var(--color-shell-hover);
  color: var(--color-shell-text);
}

.nav-item.active {
  color: var(--color-accent-nav);
  background: rgba(59,126,255,0.15);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-accent-nav);
  border-radius: 0 2px 2px 0;
}

.nav-item-link-icon {
  width: 11px;
  height: 11px;
  color: var(--color-shell-muted);
  flex-shrink: 0;
  margin-left: auto;
}

/* ── Section-level link (Newsletter, Podcast) ──────────────────── */
.nav-section-link {
  text-decoration: none;
}

/* ── Rail divider ──────────────────────────────────────────────── */
.rail-divider {
  height: 1px;
  background: var(--color-shell-border);
  margin: 10px 16px;
}

/* ── Main content panel ────────────────────────────────────────── */
#main {
  grid-area: main;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--color-bg);
}

/* ── Panel breadcrumb bar ──────────────────────────────────────── */
#panel-bar {
  display: flex;
  align-items: center;
  padding: 0 24px;
  height: 40px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  gap: 8px;
  flex-shrink: 0;
  box-shadow: 0 1px 0 var(--color-border);
}

#panel-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
}

#panel-section-label {
  font-size: 12px;
  color: var(--color-muted);
}

.panel-sep {
  color: var(--color-border);
  font-size: 14px;
}

/* ── Content area ──────────────────────────────────────────────── */
#panel-content {
  flex: 1;
  position: relative;
  overflow: hidden;
}

/* Chart state: iframe sits flush */
#panel-content iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: block;
  background: #fff;
}

/* ── Welcome / hub panel ───────────────────────────────────────── */
/* Absolute fill so height is always resolved — centering works    */
#welcome {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
  padding: 40px 40px 120px; /* pull content up to true optical center */
  gap: 40px;
  background: var(--color-bg);
}

.welcome-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  max-width: 680px;
}

.welcome-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  margin-bottom: 10px;
}

.welcome-mark {
  height: 140px;
  width: 140px;
  display: block;
}

.welcome-wordmark {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 56px;
  font-weight: 700;
  color: var(--color-brand);
  letter-spacing: -0.025em;
  line-height: 0.95;
  text-align: center;
}

.welcome-wordmark span { display: block; }

#welcome .welcome-title {
  font-size: 22px;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: -0.005em;
  line-height: 1.3;
  margin: 0;
  max-width: 580px;
}

/* ── Tile grid ─────────────────────────────────────────────────── */
/* 6 narrow columns — each tile spans 2, giving a 3-up top row.
   The 4th and 5th tiles are explicitly placed to center them:
   cols 2-3 and 4-5, leaving one empty col on each side.        */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  width: 100%;
  max-width: 1000px;
}

.tile                { grid-column: span 2; }
.tile:nth-child(4)   { grid-column: 2 / span 2; }
.tile:nth-child(5)   { grid-column: 4 / span 2; }

.tile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px 24px 20px;
  min-height: 0;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  transition: border-color var(--transition), background var(--transition),
              transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  color: inherit;
  position: relative;
}

.tile:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-dim);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(59,126,255,0.12);
}

.tile-icon {
  width: 34px;
  height: 34px;
  color: var(--color-brand);
  flex-shrink: 0;
}

.tile-label {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.tile-desc {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.55;
}

/* External-link icon next to the tile label (Newsletter / Podcast) — small,
   muted, signals "opens in new tab" without needing a verb in the footer. */
.tile-label .nav-item-link-icon {
  width: 11px;
  height: 11px;
  color: var(--color-muted);
  vertical-align: 1px;
  margin-left: 4px;
}

.tile-ext-icon {
  width: 13px;
  height: 13px;
  color: var(--color-muted);
}

/* ── Loading state ─────────────────────────────────────────────── */
#panel-loading {
  display: none;
  position: absolute;
  inset: 0;
  background: var(--color-bg);
  align-items: center;
  justify-content: center;
  z-index: 5;
}

#panel-loading.visible { display: flex; }

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* ── Hamburger button (hidden on desktop) ───────────────────────── */
#hamburger {
  display: none;
}

/* ── Nav backdrop (mobile drawer overlay) ───────────────────────── */
#nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 190;
  opacity: 0;
  transition: opacity 220ms ease;
}

#nav-backdrop.visible {
  display: block;
  opacity: 1;
}

/* ── Mobile top nav (portrait only, built by app.js) ────────────── */
#mobile-nav {
  display: none; /* shown only in portrait media query */
  flex-direction: column;
  background: var(--color-shell);
  border-bottom: 1px solid var(--color-shell-border);
  flex-shrink: 0;
}
#mobile-nav-sections,
#mobile-nav-items {
  display: flex;
  overflow-x: auto;
  padding: 5px 10px;
  gap: 6px;
  scrollbar-width: none;
}
#mobile-nav-sections::-webkit-scrollbar,
#mobile-nav-items::-webkit-scrollbar { display: none; }
#mobile-nav-items {
  border-top: 1px solid var(--color-shell-border);
  padding-top: 5px;
  padding-bottom: 6px;
}
#mobile-nav-items[hidden] { display: none !important; }
.mobile-nav-pill,
.mobile-nav-sub {
  flex-shrink: 0;
  border: 1px solid var(--color-shell-border);
  background: transparent;
  color: var(--color-shell-muted);
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 11px;
  border-radius: 20px;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  line-height: 1.4;
}
.mobile-nav-pill:hover:not(.active),
.mobile-nav-sub:hover:not(.active) {
  background: var(--color-shell-hover);
  color: var(--color-shell-text);
}
.mobile-nav-pill.active,
.mobile-nav-sub.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}
/* Pill content layout — label + small affordance icon (chevron for
   accordion sections, external-link for link sections). */
.mobile-nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.mobile-nav-pill .pill-chevron,
.mobile-nav-pill .nav-item-link-icon {
  width: 11px;
  height: 11px;
  opacity: 0.55;
  flex-shrink: 0;
  transition: transform 0.15s ease;
}
.mobile-nav-pill.active .pill-chevron {
  transform: rotate(180deg);
  opacity: 0.85;
}
.mobile-nav-pill.active .nav-item-link-icon { opacity: 0.85; }
/* Pill-label two-form swap: full (default, landscape + desktop) vs short
   (portrait phones ≤640px). Falls back to full label when section.short_label
   isn't defined in nav_config.json. */
.pill-label-short { display: none; }
@media (max-width: 640px) {
  .pill-label-full  { display: none; }
  .pill-label-short { display: inline; }
}

/* ── Phone layout (portrait ≤768px OR landscape height ≤500px) ──── *
 * Completely replaces the desktop fixed-height app-shell with a     *
 * normal scrollable document flow. !important used throughout to    *
 * break out of the desktop architecture cleanly.                    *
 * ─────────────────────────────────────────────────────────────── */
@media (max-width: 768px), (orientation: landscape) and (max-height: 500px) {

  /* ── Document root: normal flow, no fixed height ── */
  html, body {
    height: auto !important;
    min-height: 100dvh;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    max-width: 100% !important;
  }

  /* ── App shell: flex column, grows with content ── */
  #app {
    display: flex !important;
    flex-direction: column !important;
    height: auto !important;
    min-height: 100dvh;
    overflow: visible !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  /* ── Header: shrink to fit narrow screens ── */
  #header {
    flex-shrink: 0;
    overflow: visible;
    padding: 0 max(12px, env(safe-area-inset-right)) 0 max(12px, env(safe-area-inset-left));
  }
  #header .brand-logo { height: 28px; }
  #header .header-right .btn-primary {
    padding: 5px 10px;
    font-size: 11px;
    letter-spacing: 0.02em;
  }

  /* ── Show mobile pill nav, hide desktop nav ── */
  #mobile-nav   { display: flex; flex-shrink: 0; }
  #rail         { display: none !important; }
  #hamburger    { display: none !important; }
  #nav-backdrop { display: none !important; }
  #panel-bar    { display: none !important; }

  /* ── Main: flex child, grows naturally ── */
  #main {
    flex: 1;
    display: flex !important;
    flex-direction: column !important;
    overflow: visible !important;
    width: 100% !important;
  }

  /* ── Panel content: tall enough for charts to render fully ── */
  #panel-content {
    overflow: visible !important;
    position: static !important;
    width: 100% !important;
    min-height: 800px;
  }

  /* ── iframe: static block, tall fixed height — outer page scrolls ── */
  #panel-content iframe {
    position: static !important;
    display: block;
    width: 100% !important;
    height: 800px;
    border: none;
  }

  /* ── Welcome screen: normal flow, scrollable ── */
  #welcome {
    position: static !important;
    overflow: visible !important;
    width: 100% !important;
    padding: 16px 14px 60px;
    gap: 10px;
    justify-content: flex-start;
    align-items: stretch;
  }

  .welcome-header { gap: 12px; align-items: center; }
  .welcome-brand { gap: 12px; margin-bottom: 4px; }
  .welcome-mark { height: 88px; width: 88px; }
  .welcome-wordmark { font-size: 32px; }
  #welcome .welcome-title { font-size: 15px; line-height: 1.35; }

  /* ── Tile grid: single column, full width ── */
  .tile-grid {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px;
    width: 100% !important;
    max-width: 100% !important;
  }

  .tile,
  .tile:nth-child(4),
  .tile:nth-child(5) {
    width: 100% !important;
    min-height: 0;
    padding: 12px 14px 10px;
    gap: 4px;
    border-radius: 9px;
    box-shadow: none;
  }

  .tile .tile-icon   { width: 18px; height: 18px; }
  .tile .tile-label  { font-size: 14px; }
  .tile .tile-desc   { font-size: 12px; line-height: 1.45; }
}

/* ═══════════════════════════════════════════════════════════════════
 * Site-wide content components (added 2026-05-01)
 * ───────────────────────────────────────────────────────────────────
 * Used by content pages loaded inside the shell's iframe.
 * Page-specific layouts stay inlined per generator; these are the
 * cross-page patterns: buttons, pills, dropdowns, tooltips, tables,
 * focus & touch behavior.
 * ═══════════════════════════════════════════════════════════════════ */

/* ── Buttons ──────────────────────────────────────────────────────── */
.btn,
button.btn {
  font-family: var(--font);
  font-size: var(--type-sm);
  font-weight: 500;
  padding: 4px 11px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  line-height: 1.6;
  transition: background 0.1s, border-color 0.1s, color 0.1s;
}
.btn:hover,
.btn:active { background: var(--color-accent-hover-bg); }
.btn.active,
.btn.is-active,
.btn[aria-pressed="true"] {
  background: var(--color-accent-active-bg);
  color: var(--color-accent-strong);
  border-color: var(--color-accent-strong);
  font-weight: 600;
}
/* Icon-only buttons (camera/export/columns gear etc.). Minimal chrome —
   no permanent border, transparent background, soft tinted hover state.
   Convention used by Linear, Tableau, Stripe, Vercel, Notion, etc. for
   tertiary icon actions. Removes the off-center "outlined-square" look
   the previous border treatment created. */
.btn--icon {
  padding: 6px 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-muted);
  min-height: 36px;
  min-width: 36px;
}
.btn--icon:hover,
.btn--icon:active,
.btn--icon.is-active {
  background: var(--color-accent-hover-bg);
  color: var(--color-text);
  border-color: transparent;
}

/* ── Pill group (segmented control) ──────────────────────────────── */
.pill-group {
  display: inline-flex;
  gap: 1px;
  background: #e5e7eb;
  border: 1px solid var(--color-border);
  border-radius: 5px;
  padding: 2px;
}
.pill {
  background: none;
  border: none;
  border-radius: 3px;
  padding: 2px 9px;
  font-family: var(--font);
  font-size: var(--type-xs);
  font-weight: 500;
  color: var(--color-muted);
  cursor: pointer;
  white-space: nowrap;
  line-height: 1.6;
  user-select: none;
}
.pill.active,
.pill.is-active,
.pill[aria-pressed="true"] {
  background: var(--color-surface);
  color: var(--color-accent-strong);
  box-shadow: 0 1px 2px rgba(0,0,0,0.10);
  font-weight: 600;
}

/* ── Multi-select dropdown ───────────────────────────────────────── */
.multi-sel { position: relative; display: inline-block; }
.multi-sel-btn {
  font-family: var(--font);
  font-size: var(--type-sm);
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
  color: var(--color-text);
  white-space: nowrap;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: left;
  min-width: 160px;
}
.multi-sel-btn:hover,
.multi-sel-btn:active { border-color: var(--color-border-strong); }
.multi-sel-btn .dd-arrow { font-size: 9px; color: var(--color-muted); margin-left: 4px; }
.multi-sel-panel {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 200;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-popover);
  padding: 5px 0;
  min-width: 200px;
  max-height: 280px;
  overflow-y: auto;
}
.multi-sel-panel.open,
.multi-sel-panel.is-open { display: block; }
.multi-sel-panel label {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 4px 12px;
  font-size: var(--type-sm);
  cursor: pointer;
  user-select: none;
  color: var(--color-text);
}
.multi-sel-panel label:hover,
.multi-sel-panel label:active { background: var(--color-accent-hover-bg); }
.multi-sel-panel input[type=checkbox] { cursor: pointer; accent-color: var(--color-accent-strong); }
.multi-sel-sep { height: 1px; background: var(--color-border); margin: 4px 8px; }

/* ── Info button + popover ───────────────────────────────────────── */
.info-btn {
  background: var(--color-border);
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: var(--type-base);
  font-weight: 600;
  color: var(--color-muted);
  border-radius: 50%;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  flex-shrink: 0;
  transition: background 0.15s, color 0.15s;
}
.info-btn:hover,
.info-btn:active { background: #d0d5dd; color: var(--color-text); }
.info-popover {
  position: absolute;
  z-index: 200;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-popover);
  padding: 12px 14px;
  width: 340px;
  font-family: var(--font);
  font-size: var(--type-sm);
  line-height: 1.55;
  color: var(--color-text);
}
.info-popover h4 { margin: 0 0 7px; font-size: var(--type-sm); font-weight: 600; }
.info-popover ul { margin: 0; padding-left: 16px; }
.info-popover li { margin-bottom: 5px; }
.info-popover li:last-child { margin-bottom: 0; }
.info-popover b { font-weight: 600; }

/* ── Vega-Lite tooltip (id selector — Vega-Lite default element) ─── */
#vg-tooltip-element {
  visibility: hidden;
  position: fixed;
  z-index: 1000;
  pointer-events: none;
  background: rgba(31,41,55,0.92);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow-tooltip);
  font-family: var(--font);
  font-size: 12.5px;
  padding: 8px 12px;
  line-height: 1.5;
  max-width: 320px;
  word-wrap: break-word;
}
#vg-tooltip-element.visible { visibility: visible; }
#vg-tooltip-element h2 { margin: 0 0 4px; padding: 0; font-size: 12.5px; font-weight: 600; color: #fff; }
#vg-tooltip-element table { border-spacing: 0; }
#vg-tooltip-element td { border: none; padding: 2px 8px 2px 0; }
#vg-tooltip-element td.key { color: rgba(255,255,255,0.7); font-weight: 400; text-align: right; }
#vg-tooltip-element td.value { color: #fff; font-weight: 600; }
.vega-embed svg .role-legend-entry rect.background { fill: none !important; }

/* ── Toast (overlay notification) ────────────────────────────────── */
.toast {
  position: fixed;
  bottom: calc(24px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #1f2937;
  color: #fff;
  font-family: var(--font);
  font-size: 12.5px;
  padding: 9px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-tooltip);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 9999;
  max-width: 320px;
  text-align: center;
  line-height: 1.4;
}
.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
.toast--warn {
  background: #fef3c7;
  color: #78350f;
  border: 1px solid #fcd34d;
  border-left: 4px solid #f59e0b;
  text-align: left;
}

/* ── Data table (base) ───────────────────────────────────────────── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font);
  font-size: var(--type-sm);
}
.data-table thead th {
  position: sticky;
  top: 0;
  background: var(--color-surface-table-hdr);
  border-bottom: 2px solid var(--color-border);
  padding: 6px 8px;
  font-size: var(--type-xs);
  font-weight: 600;
  color: var(--color-muted);
  text-align: left;
  white-space: nowrap;
  z-index: 1;
  user-select: none;
}
.data-table thead th.num { text-align: center; }
.data-table tbody td {
  padding: 5px 8px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.data-table tbody td.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.data-table tbody tr:hover > td { background: var(--color-row-hover); }

/* ── Source attribution footer ───────────────────────────────────── */
.source-bar {
  font-family: var(--font);
  font-size: var(--type-xs);
  color: var(--color-muted);
  line-height: 1.4;
  padding: 8px 0 6px;
  margin-top: 6px;
  border-top: 1px solid var(--color-border);
}

/* ── Chart entry animation (shared keyframes) ────────────────────── */
@keyframes chartEnter {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.chart-enter {
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 500ms ease-out, transform 500ms ease-out;
}
.chart-enter.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .chart-enter,
  .chart-enter.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
    animation: none;
  }
}

/* ── Focus-visible (keyboard / accessibility) ────────────────────── */
.btn:focus-visible,
.pill:focus-visible,
.multi-sel-btn:focus-visible,
.info-btn:focus-visible {
  outline: 2px solid var(--color-accent-strong);
  outline-offset: 2px;
}

/* ── Touch widths: feedback + 44px Apple HIG targets ─────────────── */
@media (max-width: 640px) {
  .btn,
  .pill,
  .multi-sel-btn {
    min-height: var(--touch-target);
    padding: 10px 14px;
    font-size: var(--type-md);
  }
  .pill { min-height: var(--touch-target-sm); }
  .info-btn {
    width: var(--touch-target);
    height: var(--touch-target);
    font-size: var(--type-lg);
  }
  .multi-sel-panel { max-width: calc(100vw - 24px); }
  .multi-sel-panel label { padding: 10px 14px; font-size: var(--type-md); }

  .btn:active,
  .pill:active,
  .multi-sel-btn:active,
  .info-btn:active {
    transform: scale(0.97);
    transition: transform 0.08s;
  }
}

/* ── Landscape phones: compact mode ──────────────────────────────── */
@media (max-height: 500px) and (orientation: landscape) {
  .btn,
  .pill,
  .multi-sel-btn {
    min-height: var(--touch-target-sm);
    padding: 6px 10px;
    font-size: var(--type-sm);
  }
}