/* ============================================================================
   HumanCost.ai — "Restrained Watchtower" design system (seed.md §7.3)
   Serious first, beautiful second. An instrument economists and journalists trust.
   The tier color encoding is consistent EVERYWHERE a tier appears.
   ========================================================================== */

:root {
  /* Base — warm-cool dark slate, NOT pure black, for data legibility */
  --bg:            #0a0e14;
  --bg-elev:       #11161f;
  --panel:         #151b26;
  --hairline:      #232b39;

  /* Ink */
  --ink:           #e8eaed;
  --ink-muted:     #9aa4b2;

  /* The single signature accent — ember gold, for emphasis + action only */
  --ember:         #c9a227;

  /* Confidence encoding (consistent everywhere a tier appears) */
  --tier-verified: #4cc4a8;  /* A1 / strong */
  --tier-reported: #6aa3d8;  /* A2 */
  --tier-claim:    #d9a441;  /* B1 stated-by-firm — gold-adjacent, "asserted" */
  --tier-inferred: #b08bd0;  /* B2 inference */
  --tier-narrative:#8a93a3;  /* B3 narrative-only — deliberately desaturated */
  --tier-context:  #5b6472;  /* B0 / denominator */
  --alert:         #d96a6a;  /* discrepancy / contested */

  --radius: 8px;
  --maxw: 1180px;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "IBM Plex Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --display: "Cormorant Garamond", Georgia, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--ember); text-decoration: none; }
a:hover { text-decoration: underline; }
em { font-style: italic; color: var(--ink); }

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--ember); color: #000;
  padding: .5rem .75rem; z-index: 100;
}
.skip-link:focus { left: .5rem; top: .5rem; }

/* ---------- Masthead ---------- */
.masthead {
  border-bottom: 1px solid var(--hairline);
  background: linear-gradient(180deg, var(--bg-elev), var(--bg));
  position: sticky; top: 0; z-index: 20;
}
.masthead-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 1.1rem 1.25rem .4rem;
  display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; flex-wrap: wrap;
}
.brand h1 {
  font-family: var(--display); font-weight: 600; font-size: 2.1rem; letter-spacing: .01em;
  margin: 0; line-height: 1;
}
.brand h1 .thin { font-style: italic; font-weight: 500; }
.brand h1 .tld { font-family: var(--mono); font-size: .42em; color: var(--ember); vertical-align: super; letter-spacing: 0; }
.brand h1 .dot { color: var(--ember); }
.doctrine { margin: .35rem 0 0; color: var(--ink-muted); font-size: .92rem; max-width: 52ch; }
.masthead-meta {
  font-family: var(--mono); font-size: .72rem; color: var(--ink-muted); text-align: right;
  line-height: 1.7;
}
.masthead-meta b { color: var(--ink); font-weight: 600; }

/* Data-status banner — radical transparency when data is an illustrative seed */
#status-banner {
  max-width: var(--maxw); margin: .8rem auto 0; padding: .55rem .9rem;
  background: var(--bg-elev); border: 1px solid var(--hairline); border-left: 3px solid var(--ember);
  border-radius: 6px; font-size: .8rem; color: var(--ink-muted); line-height: 1.5;
}
#status-banner .sb-tag {
  font-family: var(--mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .07em;
  color: var(--ember); margin-right: .45rem;
}
#status-banner b { color: var(--ink); font-weight: 600; }

/* ---------- Tabs ---------- */
.tabs {
  max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem;
  display: flex; gap: .25rem; overflow-x: auto;
}
.tabs a {
  font-family: var(--mono); font-size: .8rem; letter-spacing: .04em; text-transform: uppercase;
  color: var(--ink-muted); padding: .7rem .85rem; border-bottom: 2px solid transparent;
  white-space: nowrap; text-decoration: none;
}
.tabs a:hover { color: var(--ink); }
.tabs a.active { color: var(--ink); border-bottom-color: var(--ember); }

/* ---------- Layout ---------- */
main {
  max-width: var(--maxw); margin: 0 auto; padding: 1.5rem 1.25rem 4rem;
  outline: none;
}
.view-head { margin: 0 0 1.2rem; }
.view-head h2 {
  font-family: var(--display); font-weight: 600; font-size: 1.9rem; margin: 0 0 .2rem;
}
.view-head p { margin: 0; color: var(--ink-muted); max-width: 70ch; }
section { margin: 0 0 2rem; }
.section-title {
  font-family: var(--mono); font-size: .76rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink-muted); margin: 0 0 .75rem; border-bottom: 1px solid var(--hairline); padding-bottom: .4rem;
}

/* ---------- Panels / grid ---------- */
.panel {
  background: var(--panel); border: 1px solid var(--hairline); border-radius: var(--radius);
  padding: 1.1rem 1.15rem;
}
.grid { display: grid; gap: 1rem; }
.grid.tiles { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

/* ---------- JOLTS headline tiles ---------- */
.tile { background: var(--panel); border: 1px solid var(--hairline); border-radius: var(--radius); padding: .95rem 1rem; }
.tile .label {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .05em; text-transform: uppercase;
  color: var(--ink-muted);
}
.tile .value { font-family: var(--mono); font-size: 1.85rem; font-weight: 600; margin: .15rem 0; }
.tile .sub { font-size: .76rem; color: var(--ink-muted); font-family: var(--mono); }
.tile .spark { margin-top: .5rem; height: 38px; }
.delta-up { color: var(--tier-verified); }
.delta-down { color: var(--alert); }

/* ---------- The tier-honest AI counter (PULSE) ---------- */
.counter {
  background: radial-gradient(120% 140% at 0% 0%, #161d2a, var(--panel));
  border: 1px solid var(--hairline); border-radius: var(--radius); padding: 1.4rem 1.4rem 1.2rem;
}
.counter .eyebrow {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-muted);
}
.counter .headline {
  display: flex; align-items: baseline; gap: .6rem; flex-wrap: wrap; margin: .25rem 0 .1rem;
}
.counter .headline .num {
  font-family: var(--mono); font-weight: 600; font-size: 3rem; line-height: 1; color: var(--tier-claim);
}
.counter .headline .unit { font-family: var(--mono); color: var(--ink-muted); font-size: .9rem; }
.counter .headline .tag {
  font-family: var(--mono); font-size: .68rem; padding: .15rem .45rem; border-radius: 4px;
  border: 1px solid var(--tier-claim); color: var(--tier-claim);
}
.counter .epistemic {
  font-size: .82rem; color: var(--ink-muted); margin: .35rem 0 1rem; max-width: 74ch;
  border-left: 2px solid var(--ember); padding-left: .7rem;
}

/* Stacked tier bar — proportions read instantly; B3 visibly excluded from headline */
.tierbar { display: flex; width: 100%; height: 30px; border-radius: 5px; overflow: hidden; border: 1px solid var(--hairline); }
.tierbar > span { display: block; height: 100%; }
.tierbar .seg-B1 { background: var(--tier-claim); }
.tierbar .seg-B2 { background: var(--tier-inferred); }
.tierbar .seg-B3 { background: var(--tier-narrative); background-image: repeating-linear-gradient(45deg, transparent, transparent 5px, rgba(0,0,0,.22) 5px, rgba(0,0,0,.22) 10px); }
.tierbar .seg-B0 { background: var(--tier-context); }

.tier-legend { display: flex; flex-wrap: wrap; gap: .35rem .9rem; margin-top: .7rem; }
.tier-legend .item { display: flex; align-items: center; gap: .4rem; font-size: .78rem; color: var(--ink-muted); font-family: var(--mono); }
.tier-legend .swatch { width: 11px; height: 11px; border-radius: 2px; display: inline-block; }
.tier-legend .excluded { text-decoration: line-through; opacity: .85; }
.tier-legend b { color: var(--ink); font-weight: 600; }

/* ---------- Tier badges (consistent everywhere) ---------- */
.badge {
  font-family: var(--mono); font-size: .72rem; font-weight: 600; padding: .12rem .4rem;
  border-radius: 4px; border: 1px solid currentColor; white-space: nowrap; display: inline-block;
}
.tier-A1 { color: var(--tier-verified); }
.tier-A2 { color: var(--tier-reported); }
.tier-A3 { color: var(--tier-narrative); }
.tier-B1 { color: var(--tier-claim); }
.tier-B2 { color: var(--tier-inferred); }
.tier-B3 { color: var(--tier-narrative); }
.tier-B0 { color: var(--tier-context); }
.badge.solid { color: #0a0e14; border-color: transparent; }
.badge.solid.tier-A1 { background: var(--tier-verified); }
.badge.solid.tier-B1 { background: var(--tier-claim); }

/* ---------- Tables (The Ledger) ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; margin-bottom: .9rem; }
.toolbar input, .toolbar select {
  font-family: var(--mono); font-size: .82rem; background: var(--bg-elev); color: var(--ink);
  border: 1px solid var(--hairline); border-radius: 6px; padding: .45rem .6rem;
}
.toolbar input { min-width: 200px; flex: 1 1 200px; }
.toolbar .count { font-family: var(--mono); font-size: .78rem; color: var(--ink-muted); margin-left: auto; }
.btn {
  font-family: var(--mono); font-size: .78rem; background: transparent; color: var(--ember);
  border: 1px solid var(--ember); border-radius: 6px; padding: .45rem .7rem; cursor: pointer;
}
.btn:hover { background: rgba(201,162,39,.1); }

.table-wrap { overflow-x: auto; border: 1px solid var(--hairline); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: .86rem; }
thead th {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .04em; text-transform: uppercase;
  text-align: left; color: var(--ink-muted); padding: .65rem .7rem; border-bottom: 1px solid var(--hairline);
  background: var(--bg-elev); position: sticky; top: 0; cursor: pointer; white-space: nowrap;
}
thead th[aria-sort="ascending"]::after { content: " ▲"; color: var(--ember); }
thead th[aria-sort="descending"]::after { content: " ▼"; color: var(--ember); }
tbody td { padding: .6rem .7rem; border-bottom: 1px solid var(--hairline); vertical-align: top; }
tbody tr:hover { background: rgba(255,255,255,.02); }
tbody tr.expander { cursor: pointer; }
.company { font-weight: 600; }
.num { font-family: var(--mono); text-align: right; font-variant-numeric: tabular-nums; }
.mono { font-family: var(--mono); }
.detail-row td { background: var(--bg-elev); }
.detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: .8rem; }
.detail-grid h4 { margin: 0 0 .3rem; font-family: var(--mono); font-size: .72rem; text-transform: uppercase; color: var(--ink-muted); }
.source-item { font-size: .8rem; border-left: 2px solid var(--hairline); padding-left: .55rem; margin: .35rem 0; }
.source-item .cls { font-family: var(--mono); font-size: .68rem; color: var(--ink-muted); }

/* ---------- Discrepancy panel ---------- */
.discrepancy .legend { display: flex; gap: 1.2rem; flex-wrap: wrap; font-family: var(--mono); font-size: .78rem; margin-bottom: .6rem; }
.discrepancy .legend .k { display: inline-flex; align-items: center; gap: .4rem; }
.discrepancy .legend .line { width: 22px; height: 2px; display: inline-block; }
.gap-callout {
  font-family: var(--mono); border: 1px dashed var(--alert); color: var(--ink);
  border-radius: 6px; padding: .6rem .8rem; margin-top: .8rem; font-size: .82rem;
}
.gap-callout b { color: var(--alert); }

/* ---------- Rubric cards (Attribution) ---------- */
.rubric { display: grid; gap: .8rem; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); }
.rubric .card { background: var(--panel); border: 1px solid var(--hairline); border-left-width: 4px; border-radius: var(--radius); padding: .9rem 1rem; }
.rubric .card.B1 { border-left-color: var(--tier-claim); }
.rubric .card.B2 { border-left-color: var(--tier-inferred); }
.rubric .card.B3 { border-left-color: var(--tier-narrative); }
.rubric .card.B0 { border-left-color: var(--tier-context); }
.rubric .card h4 { margin: 0 0 .2rem; font-family: var(--mono); }
.rubric .card p { margin: .2rem 0 0; font-size: .84rem; color: var(--ink-muted); }

/* ---------- Sources / manifest log ---------- */
dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: .25rem .9rem; font-size: .86rem; }
dl.kv dt { font-family: var(--mono); color: var(--ink-muted); }
.class-pill { font-family: var(--mono); font-size: .68rem; padding: .1rem .4rem; border-radius: 4px; border: 1px solid var(--hairline); color: var(--ink-muted); }
.loghash { font-family: var(--mono); font-size: .72rem; color: var(--ink-muted); word-break: break-all; }

/* ---------- Chart containers ---------- */
.chart-box { position: relative; width: 100%; }
.chart-box.tall { height: 340px; }
.chart-box.mid { height: 260px; }
canvas { max-width: 100%; }

/* ---------- Overlays ---------- */
.overlay {
  position: fixed; inset: 0; background: rgba(10,14,20,.86); display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 1rem; z-index: 50; color: var(--ink-muted);
}
.overlay[hidden] { display: none; }
.spinner {
  width: 34px; height: 34px; border: 3px solid var(--hairline); border-top-color: var(--ember);
  border-radius: 50%; animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#error { color: var(--ink); padding: 2rem; text-align: center; }
#error .box { background: var(--panel); border: 1px solid var(--alert); border-radius: var(--radius); padding: 1.2rem 1.4rem; max-width: 520px; }

/* ---------- Footer ---------- */
.colophon {
  border-top: 1px solid var(--hairline); max-width: var(--maxw); margin: 0 auto; padding: 1.6rem 1.25rem 3rem;
  color: var(--ink-muted); font-size: .82rem;
}
.colophon strong { color: var(--ink); }
.colophon .repo { margin-top: .6rem; }
.colophon .word { font-family: var(--display); font-style: italic; color: var(--ember); font-size: 1rem; }

/* ---------- Empty / note ---------- */
.note { color: var(--ink-muted); font-size: .84rem; }
.empty { color: var(--ink-muted); font-family: var(--mono); padding: 1.2rem; text-align: center; }
.inline-disclaimer { font-size: .76rem; color: var(--ink-muted); font-style: italic; }

/* ---------- Motion (restrained) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(6px); animation: rise .5s ease forwards; }
  @keyframes rise { to { opacity: 1; transform: none; } }
}

/* ---------- Responsive — legible at 360px ---------- */
@media (max-width: 640px) {
  .brand h1 { font-size: 1.7rem; }
  .masthead-inner { align-items: flex-start; }
  .masthead-meta { text-align: left; }
  .counter .headline .num { font-size: 2.3rem; }
  main { padding: 1.1rem .8rem 3rem; }
  .tile .value { font-size: 1.5rem; }
}

/* ============================================================================
   STORY-FIRST landing (HumanCost.ai) — built so a layperson gets it in seconds.
   ========================================================================== */

.hero { margin: .5rem 0 2.2rem; }
.hero .kicker {
  font-family: var(--mono); font-size: .76rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ember); margin: 0 0 .5rem;
}
.hero-q {
  font-family: var(--display); font-weight: 600; font-size: clamp(1.9rem, 4.5vw, 3rem);
  line-height: 1.08; margin: 0 0 .6rem; max-width: 20ch;
}
.hero-a { font-size: 1.05rem; color: var(--ink-muted); max-width: 66ch; margin: 0 0 .4rem; }
.hero-a strong { color: var(--ink); }
.claimed-word { color: var(--tier-narrative) !important; border-bottom: 2px solid var(--tier-narrative); }
.verified-word { color: var(--tier-verified) !important; border-bottom: 2px solid var(--tier-verified); }

/* The claimed-vs-confirmed centerpiece */
.claim-verify {
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 1rem; align-items: stretch;
  margin: 1.5rem 0 .7rem;
}
.cv-side {
  background: var(--panel); border: 1px solid var(--hairline); border-radius: var(--radius);
  padding: 1.2rem 1.2rem 1.1rem; text-align: center;
}
.cv-side.claimed  { border-top: 3px solid var(--tier-narrative); }
.cv-side.verified { border-top: 3px solid var(--tier-verified); }
.cv-num { font-family: var(--mono); font-weight: 600; font-size: clamp(2.2rem, 6vw, 3.2rem); line-height: 1; }
.claimed  .cv-num { color: var(--ink); }
.verified .cv-num { color: var(--tier-verified); }
.cv-label { font-weight: 600; margin-top: .45rem; }
.cv-sub { font-size: .78rem; color: var(--ink-muted); margin-top: .25rem; line-height: 1.4; }
.cv-gap { align-self: center; text-align: center; padding: 0 .2rem; min-width: 92px; }
.cv-gap::before { content: "▸"; display: block; color: var(--alert); font-size: 1.1rem; opacity: .7; margin-bottom: .2rem; }
.cv-gap-num { font-family: var(--mono); font-weight: 600; font-size: clamp(1.4rem, 4vw, 2rem); color: var(--alert); }
.cv-gap-label { font-size: .7rem; color: var(--alert); max-width: 15ch; margin: .25rem auto 0; line-height: 1.3; }
.hero-foot { margin: .9rem 0 0; font-size: .92rem; color: var(--ink); }

/* How-to-read strip */
.explainer { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin-bottom: 2rem; }
.ex-card { background: var(--bg-elev); border: 1px solid var(--hairline); border-radius: var(--radius); padding: 1rem 1.1rem; }
.ex-card h4 { margin: 0 0 .35rem; font-family: var(--mono); font-size: .8rem; letter-spacing: .02em; color: var(--ember); }
.ex-card p { margin: 0; font-size: .9rem; color: var(--ink-muted); }

/* Scale line */
.scale-line { font-size: 1.05rem; line-height: 1.6; margin: 0 0 .5rem; }
.scale-line .big-ember { font-family: var(--mono); color: var(--ember); font-size: 1.25em; font-weight: 600; }
.scale-line b { color: var(--ink); font-family: var(--mono); }

/* Plain-language legend tags in the counter */
.tier-legend .ltag { color: var(--ink-muted); font-style: italic; }
.counter .headline .tag { white-space: normal; line-height: 1.3; }

/* Explore CTAs */
.explore { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin-top: 1rem; }
.cta {
  display: grid; grid-template-columns: 1fr auto; align-items: center; gap: .3rem .6rem;
  background: var(--panel); border: 1px solid var(--hairline); border-radius: var(--radius);
  padding: 1rem 1.1rem; text-decoration: none; transition: border-color .15s, transform .15s;
}
.cta:hover { border-color: var(--ember); transform: translateY(-2px); text-decoration: none; }
.cta-title { font-weight: 600; color: var(--ink); }
.cta-sub { grid-column: 1; font-size: .82rem; color: var(--ink-muted); }
.cta-arrow { grid-row: 1 / span 2; color: var(--ember); font-size: 1.3rem; }

/* Plain-language tier chip (word first, code small) */
.tchip { display: inline-flex; align-items: center; gap: .4rem; font-size: .82rem; font-weight: 500; color: var(--ink); }
.tchip-dot { width: 10px; height: 10px; border-radius: 2px; background: currentColor; display: inline-block; }
.tchip.tier-A1, .tchip.tier-B1, .tchip.tier-A2, .tchip.tier-B2, .tchip.tier-A3, .tchip.tier-B3, .tchip.tier-B0 { /* dot inherits tier color via currentColor */ }
.tchip-code { font-family: var(--mono); font-size: .68rem; color: var(--ink-muted); border: 1px solid var(--hairline); border-radius: 3px; padding: 0 .25rem; }

/* Ledger decode key */
.ledger-key { display: flex; flex-wrap: wrap; gap: .45rem 1.6rem; margin: 0 0 1.1rem; font-size: .8rem; color: var(--ink-muted); }
.key-axis { display: flex; align-items: center; gap: .55rem; flex-wrap: wrap; }
.key-q { font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ember); }
.key-item { display: inline-flex; align-items: center; gap: .3rem; }

@media (max-width: 640px) {
  .claim-verify { grid-template-columns: 1fr; }
  .cv-gap::before { content: "▾"; }
  .cv-gap { padding: .3rem 0; }
}