:root {
  /* Anthropic-style palette: warm ivory page, white cards, Claude orange accent */
  --bg: #F0EEE6;
  --bg-panel: #FFFFFF;
  --bg-tab: #F7F5EE;
  --bg-subtle: #FAF7F1;
  --border: rgba(20, 18, 14, 0.08);
  --border-strong: rgba(20, 18, 14, 0.16);
  --text: #1F1E1D;
  --text-muted: #6B6862;
  --text-faint: #9C9892;
  --accent: #CC785C;          /* Claude orange */
  --accent-warm: #B8593E;     /* deeper ember */
  --accent-cool: #2C5F7B;     /* Anthropic blue, used sparingly */
  --green: #3E7A5F;           /* muted forest */
  --red:   #A04032;           /* muted brick */
  --radius: 8px;
  --serif: "Charter", "Source Serif Pro", "Iowan Old Style", Georgia, "Songti SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Helvetica Neue", "PingFang SC", Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  padding: 36px clamp(24px, 5vw, 72px) 80px;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border);
}
header h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.4px;
  line-height: 1.1;
}
.meta {
  color: var(--text-muted);
  font-size: 12.5px;
}
.meta .dot { margin: 0 8px; color: var(--text-faint); }

/* Tabs */
.tabs {
  display: flex;
  gap: 0;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.tab {
  appearance: none;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  padding: 12px 22px 14px;
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  display: flex;
  align-items: baseline;
  gap: 10px;
  transition: color 120ms, border-color 120ms;
}
.tab:hover { color: var(--text); }
.tab.is-active {
  color: var(--text);
  border-bottom-color: var(--accent);
}
.tab .tab-label {
  font-weight: 600;
  letter-spacing: -0.1px;
}
.tab .tab-sub {
  font-size: 10.5px;
  color: var(--text-muted);
  background: var(--bg-tab);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px 7px;
  letter-spacing: 0.3px;
  font-weight: 400;
}

/* Panels */
.panel { display: none; }
.panel.is-active { display: block; }

.card-wrap {
  margin-bottom: 22px;
}

.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 26px;
}
.card h3 {
  margin: 0 0 4px 0;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -0.2px;
}
.card .repo {
  color: var(--text-muted);
  font-size: 12px;
  margin-bottom: 18px;
}
.card .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px 22px;
}
.card .kpi {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.card .kpi .label {
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.card .kpi .value {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.4px;
  font-variant-numeric: tabular-nums;
}
.card .kpi .delta {
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
}
.delta.up { color: var(--green); }
.delta.down { color: var(--red); }
.delta.flat { color: var(--text-muted); }

/* Charts */
.charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(440px, 1fr));
  gap: 16px;
}
.chart-block {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.chart-block.wide {
  grid-column: 1 / -1;
}
.chart-block.wide .chart {
  height: 360px;
}
.traffic-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.traffic-col-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
  padding: 0 4px;
}
.traffic-tag {
  display: inline-block;
  padding: 2px 8px;
  background: var(--accent);
  color: #fff;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.4px;
}
.traffic-meta {
  color: var(--text-muted);
  font-size: 11.5px;
}
.traffic-col .chart {
  height: 320px;
}
@media (max-width: 920px) {
  .traffic-cols { grid-template-columns: 1fr; }
}
.chart-block h2 {
  margin: 0 0 14px 0;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.2px;
}
.chart {
  width: 100%;
  height: 240px;
}

.diagnostic {
  margin-top: 14px;
  padding: 14px 16px;
  border-left: 2px solid var(--accent);
  background: rgba(204, 120, 92, 0.06);
  border-radius: 0 6px 6px 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--text);
}
.diagnostic .diag-headline {
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  font-size: 13px;
}
.diagnostic .diag-row {
  color: var(--text-muted);
  margin-top: 3px;
}
.diagnostic .diag-insight {
  color: var(--text);
  margin-top: 7px;
  padding-top: 7px;
  border-top: 1px dotted var(--border);
}
.diagnostic .diag-insight::before {
  content: '◆ ';
  color: var(--accent);
}
.diagnostic .diag-row .pos { color: var(--green); font-variant-numeric: tabular-nums; }
.diagnostic .diag-row .neg { color: var(--red);   font-variant-numeric: tabular-nums; }
.diagnostic .diag-row .neutral { color: var(--text-muted); font-variant-numeric: tabular-nums; }
.diagnostic.empty { display: none; }

.caption {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--border);
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.5;
}
.caption code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  font-size: 10.5px;
  color: var(--text);
  background: var(--bg-tab);
  padding: 1px 4px;
  border-radius: 3px;
}

footer {
  margin-top: 36px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
}

.empty {
  color: var(--text-muted);
  font-style: italic;
  padding: 40px;
  text-align: center;
}

/* 24h / 7d window blocks — Contributor & Twitter tabs */
.window-blocks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 24px;
}
.window-block {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
}
.window-block h3 {
  margin: 0 0 14px 0;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.2px;
}
.window-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.window-col {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
}
.window-col .col-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 8px;
}
.window-col .col-tag {
  font-size: 10.5px;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}
.window-col .col-meta {
  color: var(--text-faint);
  font-size: 10.5px;
}
.window-col .metric-list {
  display: grid;
  gap: 5px;
}
.window-col .metric {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12px;
}
.window-col .metric .name {
  color: var(--text-muted);
}
.window-col .metric .val {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

/* compact window row used inside X account head */
.window-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 12px 0;
}

/* X account block — per-account section in Twitter tab */
.x-account-block {
  margin-bottom: 26px;
  padding: 18px 20px;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
}
.x-account-block + .x-account-block {
  margin-top: 26px;
}
.x-account-head {
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.x-account-head h2 {
  margin: 0 0 14px 0;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.3px;
}
.x-account-head .x-handle-tag {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  background: var(--bg-tab);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.3px;
  vertical-align: middle;
}
.x-account-block .charts {
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
}

/* Big KPIs (Contributor / Twitter tabs) */
.contributors-headline,
.twitter-headline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 22px;
}
.big-kpi {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.big-kpi .bk-label {
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.big-kpi .bk-value {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 500;
  letter-spacing: -0.8px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  margin: 4px 0 2px;
}
.big-kpi .bk-sub {
  color: var(--text-muted);
  font-size: 12px;
}

/* KPI row for X account cards */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 10px 18px;
  margin-bottom: 8px;
}
.kpi-row .kpi {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.kpi-row .kpi .label {
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.kpi-row .kpi .value {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.3px;
  font-variant-numeric: tabular-nums;
}

/* Tables (key contributors, top tweets, etc.) */
.table-wrap {
  margin: 4px 0 8px;
  overflow-x: auto;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}
.data-table th {
  text-align: left;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table td {
  padding: 9px 10px;
  border-bottom: 1px solid rgba(42, 45, 54, 0.5);
  vertical-align: top;
  font-variant-numeric: tabular-nums;
}
.data-table tr:hover {
  background: rgba(110, 168, 255, 0.04);
}
.data-table .col-author { color: var(--accent); font-weight: 600; }
.data-table .col-num { text-align: right; }
.data-table .col-text { max-width: 480px; color: var(--text); }
.data-table .col-text small { color: var(--text-muted); }
/* Tweet tags */
.tweet-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 6px;
}
.tweet-tag {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 3px;
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.2px;
  white-space: nowrap;
  border: 1px solid var(--border);
}
.tag-topic    { background: rgba(44, 95, 123, 0.10);  color: var(--accent-cool); border-color: rgba(44, 95, 123, 0.22); }
.tag-brand    { background: rgba(62, 122, 95, 0.10);  color: var(--green);       border-color: rgba(62, 122, 95, 0.22); }
.tag-heat     { background: rgba(204, 120, 92, 0.12); color: var(--accent);      border-color: rgba(204, 120, 92, 0.24); }
.tag-mention  { background: rgba(20, 18, 14, 0.06);   color: var(--text-muted);  border-color: rgba(20, 18, 14, 0.10); }
.tag-form     { background: rgba(20, 18, 14, 0.04);   color: var(--text-faint);  border-color: rgba(20, 18, 14, 0.08); }

.tweet-text {
  color: var(--text);
  font-size: 12px;
  line-height: 1.5;
}

.data-table .pos { color: var(--green); }
.data-table .neg { color: var(--red); }
.data-table .flat { color: var(--text-muted); }
.data-table .muted { color: var(--text-muted); font-style: italic; font-size: 11.5px; }
.kpi-row .kpi .value.pos { color: var(--green); }
.kpi-row .kpi .value.neg { color: var(--red); }
.kpi-row .kpi .value.muted { color: var(--text-muted); }
.data-table .tier-pill {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 10px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.tier-pill.L0 { background: rgba(62, 122, 95, 0.12);  color: var(--green); border: 1px solid rgba(62, 122, 95, 0.22); }
.tier-pill.T1 { background: rgba(204, 120, 92, 0.14); color: var(--accent); border: 1px solid rgba(204, 120, 92, 0.28); }
.tier-pill.T2 { background: rgba(184, 89, 62, 0.12);  color: var(--accent-warm); border: 1px solid rgba(184, 89, 62, 0.24); }
.tier-pill.T3 { background: rgba(20, 18, 14, 0.06);   color: var(--text); }
.tier-pill.T4,
.tier-pill.T5 { background: rgba(20, 18, 14, 0.04);   color: var(--text-muted); }