/* AEVF Index shared styles (index.html, tasks.html). Theseus UI: Spectral / Geist / Geist Mono. */
:root {
  --background: #fbfbf9;
  --foreground: #111111;
  --muted: #6f6f6a;
  --hairline: #e6e5e0;
  --accent: #1e3a5f;
  --viable: #3b6ea5;
  --nonviable: #c07a38;
  --serif: 'Spectral', Georgia, serif;
  --sans: 'Geist', -apple-system, system-ui, sans-serif;
  --mono: 'Geist Mono', ui-monospace, 'SF Mono', monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { color-scheme: light; }
body {
  background: var(--background);
  color: var(--foreground);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--accent); color: #fff; }
a { color: inherit; text-decoration: underline; text-decoration-thickness: from-font; text-underline-offset: 4px; }
a:hover { opacity: 0.7; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 720px; }

header.site { padding: 48px 0 0; }
.brandline { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.wordmark { font-family: var(--sans); font-weight: 500; font-size: 15px; letter-spacing: 0.18em; text-transform: uppercase; text-decoration: none; }
.brandline nav { font-family: var(--sans); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); display: flex; gap: 24px; }
.brandline nav a { text-decoration: none; color: inherit; }

.kicker { font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(34px, 5vw, 52px); line-height: 1.12; margin: 18px 0 20px; letter-spacing: -0.01em; }
.lede { font-size: 19px; color: #333; max-width: 640px; }
.lede em { font-style: italic; }
.intro { max-width: 680px; }
.intro p { font-size: 18px; color: #2a2a2a; margin-bottom: 17px; }
.intro p strong { font-weight: 500; font-size: 19px; }
.intro .intro-note { font-family: var(--sans); font-size: 13.5px; color: var(--muted); margin-top: 26px; }

.notice {
  margin: 36px 0 0; padding: 14px 18px; border: 1px solid var(--hairline);
  font-family: var(--sans); font-size: 13.5px; line-height: 1.55; color: var(--muted); background: #f6f5f1;
}
.notice strong { color: var(--foreground); font-weight: 600; }

.section-label {
  font-family: var(--sans); font-weight: 500; font-size: 12px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--muted); padding: 56px 0 18px;
}

/* stat tiles */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); }
.tile { background: var(--background); padding: 22px 22px 18px; }
.tile .t-label { font-family: var(--sans); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.tile .t-value { font-family: var(--mono); font-size: 34px; font-weight: 500; margin-top: 8px; font-variant-numeric: tabular-nums; }
.tile .t-sub { font-family: var(--sans); font-size: 12.5px; color: var(--muted); margin-top: 4px; }

/* assumptions */
.panel { border: 1px solid var(--hairline); padding: 24px; margin-top: 8px; }
.controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 22px 32px; }
.ctrl label { display: block; font-family: var(--sans); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.ctrl select {
  width: 100%; font-family: var(--mono); font-size: 13px; padding: 8px 10px;
  border: 1px solid var(--hairline); background: #fff; color: var(--foreground); border-radius: 0;
}
.seg { display: flex; border: 1px solid var(--hairline); }
.seg button {
  flex: 1; font-family: var(--sans); font-size: 12.5px; padding: 8px 4px; background: #fff;
  border: none; border-right: 1px solid var(--hairline); cursor: pointer; color: var(--muted);
}
.seg button:last-child { border-right: none; }
.seg button.on { background: var(--accent); color: #fff; }
.ctrl input[type=range] { width: 100%; accent-color: var(--accent); }
.ctrl .val { font-family: var(--mono); font-size: 12px; color: var(--foreground); }
.panel .reset { margin-top: 18px; font-family: var(--sans); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; background: none; border: none; color: var(--muted); cursor: pointer; text-decoration: underline; text-underline-offset: 3px; padding: 0; }
.panel .reset:hover { color: var(--foreground); }

/* chart */
.chart-box { border: 1px solid var(--hairline); padding: 20px 12px 8px; margin-top: 8px; overflow-x: auto; }
.chart-caption { font-family: var(--sans); font-size: 13px; color: var(--muted); padding: 10px 10px 14px; line-height: 1.55; }
.legend { display: flex; gap: 22px; font-family: var(--sans); font-size: 12.5px; color: var(--muted); padding: 4px 10px 6px; flex-wrap: wrap; }
.legend .swatch { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 7px; vertical-align: baseline; }
#tooltip {
  position: fixed; pointer-events: none; z-index: 50; display: none;
  background: #fff; border: 1px solid var(--hairline); box-shadow: 0 2px 12px rgba(17,17,17,0.08);
  padding: 10px 13px; font-family: var(--sans); font-size: 12.5px; line-height: 1.5; max-width: 280px;
}
#tooltip .tt-name { font-weight: 600; margin-bottom: 3px; }
#tooltip .tt-row { display: flex; justify-content: space-between; gap: 16px; color: var(--muted); }
#tooltip .tt-row b { font-family: var(--mono); font-weight: 500; color: var(--foreground); }

/* table */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.chips button {
  font-family: var(--sans); font-size: 12.5px; padding: 7px 14px; cursor: pointer;
  background: #fff; border: 1px solid var(--hairline); color: var(--muted); border-radius: 99px;
}
.chips button:hover { color: var(--foreground); }
.chips button.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.chips button .n { font-family: var(--mono); font-size: 10.5px; opacity: 0.75; margin-left: 5px; }
.table-tools { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 14px; }
.table-tools input[type=search] {
  font-family: var(--sans); font-size: 13.5px; padding: 8px 12px; border: 1px solid var(--hairline);
  background: #fff; width: 260px; max-width: 100%; border-radius: 0;
}
.table-tools .count { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.table-wrap { overflow-x: auto; border: 1px solid var(--hairline); }
table { border-collapse: collapse; width: 100%; min-width: 900px; }
thead th {
  font-family: var(--sans); font-size: 11px; letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--muted); text-align: right; padding: 12px 14px; border-bottom: 1px solid var(--hairline);
  cursor: pointer; user-select: none; white-space: nowrap; background: #f6f5f1; position: sticky; top: 0;
}
thead th.left { text-align: left; }
thead th .arrow { font-family: var(--mono); }
thead th[data-k] { text-decoration: underline dotted; text-decoration-color: #c9c8c2; text-underline-offset: 4px; }
.tile .t-label { text-decoration: underline dotted; text-decoration-color: #c9c8c2; text-underline-offset: 4px; cursor: help; }
tbody td { padding: 11px 14px; border-bottom: 1px solid var(--hairline); font-size: 14.5px; text-align: right; white-space: nowrap; }
tbody td.left { text-align: left; white-space: normal; }
tbody tr.row { cursor: pointer; }
tbody tr.row:hover { background: #f6f5f1; }
td .num { font-family: var(--mono); font-size: 13px; font-variant-numeric: tabular-nums; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 8px; }
.dot.v { background: var(--viable); }
.dot.n { background: var(--nonviable); }
.task-name { font-weight: 500; }
.task-domain { font-family: var(--sans); font-size: 11.5px; color: var(--muted); letter-spacing: 0.04em; }
.grade { font-family: var(--mono); font-size: 12px; border: 1px solid var(--hairline); padding: 1px 7px; color: var(--muted); }
.floorflag { font-family: var(--sans); font-size: 10.5px; color: var(--nonviable); letter-spacing: 0.04em; }

tr.detail td { background: #f6f5f1; text-align: left; white-space: normal; padding: 22px 26px; }
.detail-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 28px; }
@media (max-width: 800px) { .detail-grid { grid-template-columns: 1fr; } }
.detail h4 { font-family: var(--sans); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); font-weight: 500; margin: 0 0 10px; }
.cost-rows { font-family: var(--mono); font-size: 12.5px; }
.cost-row { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.cost-row .cl { width: 150px; color: var(--muted); font-family: var(--sans); font-size: 12px; }
.cost-row .bar { height: 8px; background: var(--accent); opacity: 0.75; border-radius: 4px 4px 4px 4px; min-width: 2px; }
.cost-row .cv { font-variant-numeric: tabular-nums; }
.detail .meta { font-family: var(--sans); font-size: 13px; color: #333; line-height: 1.65; }
.detail .meta b { font-weight: 600; }
.detail .srcs { margin-top: 14px; font-family: var(--sans); font-size: 12.5px; color: var(--muted); line-height: 1.7; }
.detail .srcs a { color: var(--accent); }
.detail .statline { font-family: var(--mono); font-size: 12.5px; margin-top: 14px; line-height: 1.9; }

/* equations */
.eqs { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); }
.eq { background: var(--background); padding: 22px; }
.eq .formula { font-family: var(--mono); font-size: 15px; margin-bottom: 8px; }
.eq .expl { font-family: var(--sans); font-size: 13px; color: var(--muted); line-height: 1.55; }
.worked { margin-top: 20px; font-family: var(--sans); font-size: 14px; color: #333; line-height: 1.7; border-left: 2px solid var(--accent); padding-left: 18px; }
.worked .num { font-family: var(--mono); font-size: 13px; }

/* ask the index */
.ask-cta { border: 1px solid var(--hairline); padding: 26px 28px; max-width: 780px; }
.ask-cta a {
  font-family: var(--sans); font-size: 15px; font-weight: 500; color: var(--accent);
  text-decoration: none; letter-spacing: 0.02em;
}
.ask-cta a:hover { opacity: 0.75; }
.ask-cta p { font-family: var(--sans); font-size: 13px; color: var(--muted); margin-top: 10px; line-height: 1.55; }

.prose { max-width: 720px; font-size: 16.5px; color: #222; }
.prose p { margin-bottom: 16px; }
.prose .num { font-family: var(--mono); font-size: 14px; }

/* share */
.share-row { display: flex; flex-wrap: wrap; gap: 12px; }
.share-row a, .share-row button {
  width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
  color: var(--muted); background: #fff; border: 1px solid var(--hairline); border-radius: 50%;
  text-decoration: none; cursor: pointer; padding: 0; transition: color 0.12s, border-color 0.12s, transform 0.12s;
}
.share-row svg { width: 18px; height: 18px; display: block; }
.share-row svg[hidden] { display: none; }
.share-row a:hover, .share-row button:hover { color: var(--accent); border-color: var(--accent); opacity: 1; transform: translateY(-1px); }
.share-row button.done { background: var(--accent); border-color: var(--accent); color: #fff; }
.contact-block {
  margin-top: 34px; font-size: 17px; color: #333; max-width: 640px;
}
.contact-block a { color: var(--accent); }

footer { margin-top: 90px; border-top: 1px solid var(--hairline); padding: 32px 0 56px; }
footer .frow { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-family: var(--sans); font-size: 12.5px; color: var(--muted); }
footer a { text-decoration: none; border-bottom: 1px solid var(--hairline); }

/* index preview + browse button */
.preview-note { font-family: var(--sans); font-size: 13px; color: var(--muted); margin-bottom: 14px; line-height: 1.55; }
.browse-all { margin-top: 18px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; border: 1px solid var(--hairline); padding: 18px 22px; background: #f6f5f1; }
.browse-all .bt { font-family: var(--sans); font-size: 13.5px; color: var(--muted); line-height: 1.5; }
.browse-all .bt b { color: var(--foreground); font-weight: 600; }
.btn { display: inline-block; font-family: var(--sans); font-size: 13px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; padding: 11px 18px; background: var(--accent); color: #fff; border: 1px solid var(--accent); text-decoration: none; white-space: nowrap; }
.btn:hover { opacity: 0.85; }
.btn.ghost { background: #fff; color: var(--accent); }

/* tasks page */
.tasks-head { padding-top: 56px; }
.tasks-head h1 { font-size: clamp(30px, 4.5vw, 44px); margin-bottom: 14px; }
.tasks-head .lede { font-size: 17px; }
.table-tools .seg { width: auto; }
.table-tools .seg button { padding: 8px 14px; flex: none; }
.table-tools .tools-left { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.task-id { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.permalink { font-family: var(--mono); font-size: 12px; color: #c9c8c2; text-decoration: none; margin-left: 8px; }
.permalink:hover { color: var(--accent); opacity: 1; }
tbody tr.row.hit td { background: #eef2f7; }
.controls.compact { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px 24px; }
.panel.compact { padding: 18px 22px; }
@media (max-width: 640px) { .table-tools input[type=search] { width: 100%; } }