/* ---------------------------------------------------------------------------
   Jyotisha Bench.

   One visual world: near-black ground, warm cream ink, a single coral accent.
   Every colour is painted explicitly so the page holds regardless of the host
   ground. Serif for anything that carries an argument, monospace for anything
   that carries a number or a label.
   --------------------------------------------------------------------------- */

:root {
  --ground:      #131315;
  --surface:     #1A1A1D;
  --surface-alt: #212126;
  --ink:         #EFEBE3;
  --ink-soft:    #B9B4AB;
  --muted:       #7B7873;
  --faint:       #5C5A57;
  --rule:        #2A2A2E;
  --rule-strong: #3A3A40;
  --frame:       #E8E4DC;
  --accent:      #E4573D;
  --accent-dim:  #3A1C15;
  --warn:        #C9922E;

  --serif: "Iowan Old Style", "Hoefler Text", "Palatino Linotype", Palatino, Georgia, serif;
  --mono:  ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --sans:  -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --nav-h: 60px;
  --max:   1180px;
}

* { box-sizing: border-box; }

html {
  background: var(--ground);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 20px);
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 32px; }
.prose { max-width: 66ch; }

code {
  font-family: var(--mono);
  font-size: .92em;
  color: var(--ink-soft);
}

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: #fff; padding: 10px 16px; z-index: 100;
}
.skip:focus { left: 12px; top: 12px; }

/* --------------------------------------------------------------------- nav */

.nav {
  position: sticky; top: 0; z-index: 50; height: var(--nav-h);
  background: rgba(19, 19, 21, .88);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--rule);
}

.nav .wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.brand svg { display: block; flex: none; }

.brand .bt {
  font-family: var(--mono);
  font-size: 13px; letter-spacing: .2em; text-indent: .2em; text-transform: uppercase;
  color: var(--ink); white-space: nowrap;
}
.brand .bt b { color: var(--accent); font-weight: inherit; }

.navlinks { display: flex; gap: 26px; align-items: center; }
.navlinks a {
  font-family: var(--mono);
  font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); text-decoration: none;
}
.navlinks a:hover { color: var(--ink); }
@media (max-width: 900px) { .navlinks { display: none; } }

/* -------------------------------------------------------------------- hero */

header { padding: 72px 0 78px; border-bottom: 1px solid var(--rule); }

.hero {
  display: grid;
  grid-template-columns: minmax(300px, 480px) minmax(0, 1fr);
  gap: 68px;
  align-items: start;
}

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 40px; }
  header { padding: 44px 0 48px; }
}

/* ------------------------------------------------ the chart, as the mark */

.chart {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 2px solid var(--frame);
  aspect-ratio: 1 / 1;
  width: 100%;
}

.cell {
  background: var(--ground);
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 10px 12px 11px; min-width: 0;
}

.cell .rasi {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: .13em; text-transform: uppercase;
  color: var(--muted); line-height: 1;
}

.cell .grahas {
  font-family: var(--mono);
  font-size: 13px; letter-spacing: .04em; color: var(--ink-soft);
  line-height: 1; min-height: 13px;
}

.cell .grahas .lagna { color: var(--accent); }

.cell.centre {
  grid-column: 2 / 4; grid-row: 2 / 4;
  align-items: center; justify-content: center; gap: 7px; text-align: center;
}

.wordmark {
  font-family: var(--mono);
  font-size: clamp(13px, 1.7vw, 17px);
  letter-spacing: .3em; text-indent: .3em; line-height: 1.5;
}
.wordmark .a { color: var(--ink); display: block; }
.wordmark .b { color: var(--accent); display: block; }

.est {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: .22em; text-indent: .22em; color: var(--muted);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 26px;
}

h1.title {
  font-family: var(--serif);
  font-size: clamp(38px, 4.6vw, 62px);
  line-height: 1.08; font-weight: 400; letter-spacing: -.018em;
  text-wrap: balance; margin: 0 0 30px; color: var(--ink);
  max-width: 19ch;
}
h1.title em { font-style: normal; color: var(--accent); }

.standfirst {
  font-family: var(--serif);
  font-size: 20px; line-height: 1.55; color: var(--ink-soft);
  max-width: 52ch; margin: 0 0 28px;
}

.meta-line {
  font-family: var(--mono);
  font-size: 12px; color: var(--muted); letter-spacing: .04em; line-height: 1.8;
  padding-top: 22px; border-top: 1px solid var(--rule); max-width: 52ch; margin: 0;
}

/* The three figures that carry the finding. */
.headline-figures {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px; background: var(--rule);
  border: 1px solid var(--rule);
  margin-top: 62px;
}
@media (max-width: 820px) { .headline-figures { grid-template-columns: 1fr; margin-top: 40px; } }
.figure { background: var(--surface); padding: 22px 24px 24px; display: flex; flex-direction: column; gap: 7px; }
.fval { font-size: 38px; line-height: 1; letter-spacing: -.025em; color: var(--ink); }
.fval.accent { color: var(--accent); }
.flabel { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); }
.fnote { font-size: 13.5px; color: var(--muted); }

/* ---------------------------------------------------------------- sections */

section { padding: 74px 0; border-bottom: 1px solid var(--rule); }

.sectionlabel {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 16px;
}

h2 {
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 36px); font-weight: 400; letter-spacing: -.012em;
  margin: 0 0 14px; text-wrap: balance; color: var(--ink);
}

h3 { margin: 0 0 9px; }

p { margin: 0 0 16px; }
p.lede { font-size: 17.5px; color: var(--ink-soft); line-height: 1.6; margin-bottom: 34px; }

/* -------------------------------------------------------------------- table */

.tablescroll {
  overflow-x: auto;
  border: 1px solid var(--rule);
  background: var(--surface);
}

table { border-collapse: collapse; width: 100%; min-width: 900px; font-size: 13.5px; }

thead th {
  text-align: right; font-weight: 400; color: var(--muted);
  font-family: var(--mono);
  font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
  padding: 14px 10px; border-bottom: 1px solid var(--rule-strong);
  vertical-align: bottom; white-space: nowrap;
}
thead th:first-child { text-align: left; }

/* Sortable headers are buttons so they are reachable from the keyboard. */
thead th button {
  font: inherit; letter-spacing: inherit; text-transform: inherit;
  color: inherit; background: none; border: 0; padding: 0; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
}
thead th button:hover { color: var(--ink); }
thead th button::after { content: "\2195"; opacity: .35; font-size: 11px; }
thead th[aria-sort="descending"] button { color: var(--accent); }
thead th[aria-sort="descending"] button::after { content: "\2193"; opacity: 1; }
thead th[aria-sort="ascending"] button { color: var(--accent); }
thead th[aria-sort="ascending"] button::after { content: "\2191"; opacity: 1; }

tbody td {
  padding: 13px 10px; border-bottom: 1px solid var(--rule);
  text-align: right; color: var(--ink);
  font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap;
}
tbody td:first-child { text-align: left; font-family: var(--sans); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: var(--surface-alt); }

/* Name over slug rather than beside it: the slug is for verification, not for
   reading, and inline it costs the table more width than the numbers can spare. */
.model { display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; align-items: center; }
.dot { width: 8px; height: 8px; background: var(--model-color, var(--muted)); }
.mname { color: var(--ink); font-size: 14.5px; }
.mslug { grid-column: 2; font-family: var(--mono); font-size: 10.5px; color: var(--faint); }

/* The primary column carries a bar so the ranking is readable at a glance. */
td.primary { color: var(--ink); }
.barcell { display: flex; align-items: center; justify-content: flex-end; gap: 9px; }
.track { position: relative; width: 62px; height: 8px; flex: none; background: var(--rule-strong); }
.fill { position: absolute; left: 0; top: 0; height: 100%; background: var(--model-color, var(--accent)); }
.val { min-width: 46px; }

/* Best in column: marked on the figure alone. A wash behind the cell turns a
   model that leads four columns into one solid block, which reads as decoration
   rather than as a result. */
td.best { color: var(--accent); }
td.weak { color: var(--muted); }

.board-notes { margin-top: 20px; display: grid; gap: 7px; }
.board-notes p { font-family: var(--mono); font-size: 12px; color: var(--muted); margin: 0; }

/* --------------------------------------------------------------- takeaways */

.takeaways { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
@media (max-width: 860px) { .takeaways { grid-template-columns: 1fr; } }

.takeaway { background: var(--surface); padding: 28px 30px 30px; border-top: 2px solid var(--accent); }
.takeaway h3 { font-family: var(--serif); font-size: 22px; font-weight: 400; color: var(--ink); }
.takeaway p { margin: 0; color: var(--ink-soft); font-size: 15px; line-height: 1.62; }

/* ------------------------------------------------------------------- tabs */

.metric-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 26px; }

.metric-tab {
  padding: 8px 13px; cursor: pointer;
  font-family: var(--mono); font-size: 12px;
  color: var(--ink-soft); background: var(--surface);
  border: 1px solid var(--rule-strong); border-radius: 2px;
}
.metric-tab:hover { color: var(--ink); border-color: var(--frame); }
.metric-tab[aria-selected="true"] { color: var(--accent); background: var(--accent-dim); border-color: var(--accent); }

/* Each domain row is scored on its own scale, so the bar is comparative
   across models within the row rather than against an absolute ceiling. */
.matrix td .barcell { justify-content: flex-end; }

/* ---------------------------------------------------------------- measures */

.measures { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 34px 56px; }
@media (max-width: 860px) { .measures { grid-template-columns: 1fr; gap: 28px; } }

.measure { border-top: 1px solid var(--rule-strong); padding-top: 16px; }
.measure h3 { font-family: var(--mono); font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase; font-weight: 400; color: var(--accent); }
.measure p { margin: 0; color: var(--ink-soft); font-size: 15px; }

/* ------------------------------------------------------------------ method */

.method-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px 44px; }
@media (max-width: 980px) { .method-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 700px) { .method-grid { grid-template-columns: 1fr; gap: 26px; } }

.method { border-top: 2px solid var(--rule-strong); padding-top: 16px; }
.method h3 { font-family: var(--serif); font-size: 19px; font-weight: 400; color: var(--ink); }
.method p { margin: 0; color: var(--ink-soft); font-size: 14.5px; }

.callout { border-left: 2px solid var(--accent); padding: 4px 0 4px 26px; margin: 46px 0 0; max-width: 74ch; }
.callout .big { font-family: var(--serif); font-size: 23px; line-height: 1.42; color: var(--ink); margin-bottom: 14px; }
.callout p:last-child { margin-bottom: 0; color: var(--ink-soft); font-size: 15px; }

/* -------------------------------------------------------------------- data */

.artifacts { border-top: 1px solid var(--rule); margin-bottom: 40px; }

.artifacts a {
  display: flex; justify-content: space-between; align-items: baseline; gap: 20px;
  padding: 13px 0; text-decoration: none;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono); font-size: 12.5px; color: var(--ink-soft);
}
.artifacts a:hover { color: var(--accent); }
.artifacts a .what { color: var(--ink); }
.artifacts a:hover .what { color: var(--accent); }
.artifacts a .size { color: var(--faint); white-space: nowrap; }

.scope {
  border-left: 2px solid var(--rule-strong); padding: 2px 0 2px 22px;
  max-width: 74ch; color: var(--muted); font-size: 14.5px; margin: 0;
}
.scope strong { color: var(--ink-soft); font-weight: 400; }

/* ------------------------------------------------------------------ footer */

footer { border-top: 1px solid var(--rule); background: var(--ground); }

.footer-inner {
  min-height: 92px; display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .04em; color: var(--muted);
  padding-top: 26px; padding-bottom: 26px;
}

@media (max-width: 620px) {
  .wrap { padding: 0 20px; }
  section { padding: 54px 0; }
  .takeaway { padding: 24px 22px 26px; }
  .fval { font-size: 32px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 10px; }
}

/* ------------------------------------------------------- the worked example */

.example {
  display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: 1px; background: var(--rule); border: 1px solid var(--rule);
}
@media (max-width: 860px) { .example { grid-template-columns: 1fr; } }

.ex-panel { background: var(--surface); padding: 28px 30px 30px; }
.ex-panel h3 { font-family: var(--serif); font-size: 21px; font-weight: 400; color: var(--ink); }
.ex-panel > p { color: var(--ink-soft); font-size: 14.5px; }

.ex-facts { min-width: 0; width: 100%; font-size: 13px; margin-top: 18px; }
.ex-facts td { border-bottom: 1px solid var(--rule); padding: 9px 0; }
.ex-facts tr:last-child td { border-bottom: 0; }
.ex-facts .ptr { font-family: var(--mono); color: var(--accent); text-align: left; }
.ex-facts .pval { font-family: var(--mono); color: var(--ink); text-align: right; }

.ex-options { list-style: none; margin: 18px 0 0; padding: 0; }

.ex-options li {
  display: grid; grid-template-columns: 24px 1fr auto; gap: 12px;
  align-items: baseline;
  padding: 12px 0; border-top: 1px solid var(--rule);
  color: var(--muted); font-size: 14.5px; line-height: 1.5;
}

.ex-options .oid { font-family: var(--mono); font-size: 12px; color: var(--faint); }
.ex-options li.right { color: var(--ink); }
.ex-options li.right .oid { color: var(--accent); }

.tick {
  font-family: var(--mono); font-size: 10px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent); border: 1px solid var(--accent); border-radius: 2px;
  padding: 3px 7px; white-space: nowrap;
}

.ex-answer {
  margin: 22px 0 0; padding-top: 18px; border-top: 1px solid var(--rule-strong);
  color: var(--ink-soft); font-size: 14.5px;
}
.ex-answer strong { color: var(--accent); font-weight: 400; }