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

:root {
  /* Backgrounds */
  --bg:          #0d1117;
  --bg-card:     #161b22;
  --bg-card-hov: #1c2128;
  --bg-input:    #21262d;

  /* Borders */
  --border:     #30363d;
  --border-sub: #21262d;

  /* Text */
  --text-1: #e6edf3;
  --text-2: #c9d1d9;
  --text-3: #8b949e;
  --text-4: #484f58;

  /* Semantic */
  --up:   #3fb950;
  --down: #f85149;

  /* Domain accent colours */
  --housing:  #f59e0b;
  --labor:    #06b6d4;
  --rates:    #22c55e;
  --gdp:      #a855f7;
  --regional: #f43f5e;

  /* Typography */
  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* Layout */
  --max-w: 1400px;
}

html { font-size: 15px; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-2);
  line-height: 1.5;
  min-height: 100vh;
}

a {
  color: var(--text-3);
  text-decoration: none;
  transition: color 0.15s;
}
a:hover { color: var(--text-1); }

.mono { font-family: var(--font-mono); }

/* ── App wrapper ────────────────────────────────────────────────────────────── */
#app {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Header ─────────────────────────────────────────────────────────────────── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0 1.25rem;
  border-bottom: 1px solid var(--border-sub);
  gap: 1rem;
}

.header-brand h1 {
  display: inline;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: -0.01em;
}

.header-source {
  margin-left: 0.65rem;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-4);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  vertical-align: middle;
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.meta-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-4);
}

.meta-value {
  font-size: 0.78rem;
  color: var(--text-3);
}

/* ── Domain tabs ────────────────────────────────────────────────────────────── */
.domain-nav {
  display: flex;
  flex-wrap: wrap;
  padding: 1rem 0 0;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  position: relative;
  background: none;
  border: none;
  padding: 0.55rem 1.2rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-3);
  cursor: pointer;
  transition: color 0.15s;
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.tab-btn::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--tab-color, transparent);
  opacity: 0;
  transition: opacity 0.15s;
}

.tab-btn:hover { color: var(--text-1); }
.tab-btn:hover::after { opacity: 0.4; }

.tab-btn.active { color: var(--text-1); }
.tab-btn.active::after { opacity: 1; }

/* Glossary tab keyboard hint badge */
.tab-hint {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-style: normal;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.05em 0.35em;
  color: var(--text-4);
  line-height: 1.6;
  vertical-align: middle;
  letter-spacing: 0;
}

/* ── KPI cards ──────────────────────────────────────────────────────────────── */
.kpi-section {
  padding: 1.5rem 0 0.75rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.kpi-section::-webkit-scrollbar { display: none; }

.kpi-grid {
  display: flex;
  gap: 0.625rem;
  padding-bottom: 0.25rem;
  min-width: max-content;
}

.kpi-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--card-color, var(--border));
  border-radius: 6px;
  padding: 0.9rem 1rem;
  cursor: pointer;
  width: 170px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  transition: background 0.15s, box-shadow 0.15s, border-color 0.15s;
  user-select: none;
}

.kpi-card:hover {
  background: var(--bg-card-hov);
  box-shadow: 0 0 0 1px var(--card-color), 0 4px 14px rgba(0,0,0,0.35);
}

.kpi-card.active {
  background: var(--bg-card-hov);
  border-color: var(--card-color);
  box-shadow: 0 0 0 1px var(--card-color), 0 6px 20px rgba(0,0,0,0.4);
}

.kpi-name {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.kpi-value {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--text-1);
  line-height: 1;
  margin-bottom: 0.45rem;
  letter-spacing: -0.02em;
}

.kpi-change {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.2rem;
  margin-bottom: 0.75rem;
}

.kpi-change.up     { color: var(--up); }
.kpi-change.down   { color: var(--down); }
.kpi-change.neutral { color: var(--text-4); }

.kpi-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.25rem;
  margin-top: auto;
}

.kpi-date {
  font-size: 0.67rem;
  color: var(--text-4);
}

.freq-badge {
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-4);
  background: var(--bg-input);
  padding: 0.1em 0.45em;
  border-radius: 3px;
}

/* ── Chart section ──────────────────────────────────────────────────────────── */
.chart-section {
  padding: 1.5rem 0 1rem;
}

.chart-controls {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.875rem;
  flex-wrap: wrap;
}

.series-checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.series-cb {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.775rem;
  color: var(--text-3);
  cursor: pointer;
  padding: 0.28rem 0.6rem 0.28rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-card);
  transition: all 0.15s;
  user-select: none;
}

.series-cb input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.cb-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cb-color, var(--border));
  flex-shrink: 0;
  opacity: 0.35;
  transition: opacity 0.15s;
}

.series-cb.active {
  color: var(--text-1);
  border-color: var(--cb-color);
  background: var(--bg-card-hov);
}

.series-cb.active .cb-dot { opacity: 1; }
.series-cb:hover { color: var(--text-1); border-color: var(--cb-color); }
.series-cb:hover .cb-dot  { opacity: 0.7; }

.window-buttons {
  display: flex;
  gap: 0.25rem;
  flex-shrink: 0;
}

.win-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.28rem 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-3);
  cursor: pointer;
  transition: all 0.15s;
}

.win-btn:hover {
  color: var(--text-1);
  border-color: var(--text-3);
}

.win-btn.active {
  color: var(--text-1);
  background: var(--bg-input);
  border-color: var(--text-2);
}

.chart-wrap {
  position: relative;
  height: 400px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1rem 1rem;
}

.chart-note {
  margin-top: 0.5rem;
  font-size: 0.7rem;
  color: var(--text-4);
  text-align: right;
  font-family: var(--font-mono);
}

/* ── Glossary section ───────────────────────────────────────────────────────── */
.glossary-section {
  padding: 1.5rem 0 1rem;
}

.glossary-header {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  margin-bottom: 1.5rem;
}

.glossary-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: -0.01em;
}

.glossary-search {
  width: 100%;
  max-width: 480px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--text-1);
  outline: none;
  transition: border-color 0.15s;
}
.glossary-search::placeholder { color: var(--text-4); }
.glossary-search:focus { border-color: var(--text-3); }

.glossary-domain-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.gfilter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.28rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-3);
  cursor: pointer;
  transition: all 0.15s;
}
.gfilter-btn:hover { color: var(--text-1); border-color: var(--text-3); }
.gfilter-btn.active { color: var(--text-1); background: var(--bg-input); border-color: var(--text-2); }
.gfilter-btn[data-filter="housing"].active  { color: var(--housing); border-color: var(--housing); }
.gfilter-btn[data-filter="labor"].active    { color: var(--labor);   border-color: var(--labor); }
.gfilter-btn[data-filter="rates"].active    { color: var(--rates);   border-color: var(--rates); }
.gfilter-btn[data-filter="gdp_income"].active { color: var(--gdp);  border-color: var(--gdp); }
.gfilter-btn[data-filter="regional"].active { color: var(--regional); border-color: var(--regional); }

/* Glossary grid — 3 cols desktop, 2 tablet, 1 mobile */
.glossary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.glossary-empty {
  font-size: 0.85rem;
  color: var(--text-4);
  padding: 2rem 0;
}

.glossary-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: border-color 0.15s;
}
.glossary-card:hover { border-color: var(--border); }

.glossary-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.glossary-card-name {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.3;
  flex: 1;
}

.glossary-card-id {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-4);
  flex-shrink: 0;
  padding-top: 0.1rem;
  word-break: break-all;
  text-align: right;
  max-width: 120px;
}

.glossary-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.72rem;
  color: var(--text-4);
  line-height: 1.4;
}

.glossary-meta-sep { opacity: 0.5; }

.glossary-lag-badge {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-4);
  background: var(--bg-input);
  border-radius: 3px;
  padding: 0.1em 0.5em;
  align-self: flex-start;
}

.glossary-desc {
  font-size: 0.795rem;
  color: var(--text-2);
  line-height: 1.6;
}

.glossary-why {
  font-size: 0.775rem;
  color: var(--text-3);
  line-height: 1.55;
  padding-left: 0.75rem;
  border-left: 2px solid var(--border);
}

.glossary-why em { font-style: italic; color: var(--text-4); }

.glossary-related {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.glossary-chip {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.1em 0.45em;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-3);
  cursor: pointer;
  transition: all 0.15s;
}
.glossary-chip:hover {
  color: var(--text-1);
  border-color: var(--text-3);
  background: var(--bg-card-hov);
}

.glossary-card-footer {
  margin-top: auto;
  padding-top: 0.4rem;
  border-top: 1px solid var(--border-sub);
}

.glossary-source-link {
  font-size: 0.72rem;
  color: var(--text-4);
  transition: color 0.15s;
}
.glossary-source-link:hover { color: var(--text-1); }

/* ── Upcoming releases ──────────────────────────────────────────────────────── */
.releases-section {
  padding: 1.5rem 0 0.5rem;
  border-top: 1px solid var(--border-sub);
  margin-top: 0.5rem;
}

.releases-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.releases-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: -0.01em;
}

.ics-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.25rem 0.6rem;
  background: var(--bg-card);
  transition: all 0.15s;
}

.ics-link:hover {
  color: var(--text-1);
  border-color: var(--text-3);
}

.release-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.5rem;
}

.release-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--rel-color, var(--border));
  border-radius: 5px;
  padding: 0.6rem 0.75rem;
}

.release-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--rel-color, var(--text-4));
  flex-shrink: 0;
}

.release-info {
  flex: 1;
  min-width: 0;
}

.release-name {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.release-when {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-3);
  margin-top: 0.15rem;
}

.release-today  { color: var(--up); }
.release-soon   { color: var(--text-2); }

/* ── About button (footer) ──────────────────────────────────────────────────── */
.about-trigger {
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--text-4);
  cursor: pointer;
  padding: 0;
  transition: color 0.15s;
}
.about-trigger:hover { color: var(--text-1); }

/* ── About modal ────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(1, 4, 9, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1rem;
}

.modal-overlay[hidden] { display: none; }

.modal {
  background: #161b22;
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem 0;
}

.modal-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-1);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-3);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  line-height: 0;
  transition: color 0.15s, background 0.15s;
}
.modal-close:hover { color: var(--text-1); background: var(--bg-input); }

.modal-body {
  padding: 1rem 1.5rem 1.5rem;
}

.modal-desc {
  font-size: 0.85rem;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.modal-section {
  margin-bottom: 1.25rem;
}

.modal-section h3 {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-4);
  margin-bottom: 0.5rem;
}

.modal-section p {
  font-size: 0.82rem;
  color: var(--text-2);
}

.modal-note {
  font-size: 0.75rem !important;
  color: var(--text-3) !important;
}

.modal-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.modal-list li {
  font-size: 0.82rem;
  color: var(--text-3);
}

.modal-list a { color: var(--text-2); }
.modal-list a:hover { color: var(--text-1); }

.cal-copy-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.5rem 0.6rem;
}

.cal-url {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-3);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.25rem 0.55rem;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--text-3);
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.15s;
}
.copy-btn:hover { color: var(--text-1); border-color: var(--text-3); }
.copy-btn.copied { color: var(--up); border-color: var(--up); }

.modal-footer-links {
  display: flex;
  gap: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-sub);
  margin-bottom: 0 !important;
}

.modal-footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  color: var(--text-3);
}
.modal-footer-links a:hover { color: var(--text-1); }

/* kbd used in modal desc and tab hint */
kbd {
  font-family: var(--font-mono);
  font-size: 0.72em;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.05em 0.4em;
  color: var(--text-3);
}

/* ── Footer ─────────────────────────────────────────────────────────────────── */
.site-footer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 0 2.5rem;
  border-top: 1px solid var(--border-sub);
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-4);
}

.footer-sep { opacity: 0.35; }

/* ── Error state ────────────────────────────────────────────────────────────── */
.error-state {
  text-align: center;
  padding: 5rem 2rem;
}

.error-state .err-title {
  font-size: 1rem;
  color: var(--down);
  margin-bottom: 0.5rem;
}

.error-state .err-detail {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-4);
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .glossary-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  .site-header   { flex-direction: column; align-items: flex-start; }
  .header-source { display: none; }
  .chart-wrap    { height: 300px; }
  .kpi-value     { font-size: 1.1rem; }
  .site-footer   { flex-direction: column; gap: 0.35rem; }
  .footer-sep    { display: none; }
  .glossary-grid { grid-template-columns: 1fr; }
  .tab-hint      { display: none; }
}