:root {
  --blue: #0a429e;
  --blue-d: #072f72;
  --orange: #d8862a;
  --orange-d: #b56d1d;
  --fg: #1b2230;
  --muted: #6b7484;
  --faint: #9aa3b2;
  --sep: #e7ebf1;
  --tint: #eef3fb;
  --card: #ffffff;
  --bg: #f4f6f9;
  --green: #1a7f37;
  --red: #cf222e;
  --spark: #c2ccd9;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 4px 16px rgba(16, 24, 40, .06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ---- top bar ---- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--sep);
  box-shadow: 0 2px 0 0 var(--orange);
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 700; color: var(--blue); letter-spacing: .2px; }
.brand .logo-link { display: flex; }
.brand .logo { height: 32px; width: auto; display: block; }
.brand a { color: var(--blue); text-decoration: none; }
.brand span { margin-left: 9px; font-size: 14px; font-weight: 500; color: var(--muted); }

.controls { display: flex; align-items: center; gap: 18px; }
.benchmark-nav { display: flex; gap: 6px; }
.nav-button {
  padding: 6px 10px; border: 1px solid var(--sep); border-radius: 8px;
  color: var(--blue); background: #fff; text-decoration: none;
  font-size: 12px; font-weight: 600; white-space: nowrap;
}
.nav-button:hover { border-color: var(--blue); background: var(--tint); }
.nav-button.active { color: #fff; border-color: var(--blue); background: var(--blue); }
.legend { display: flex; align-items: center; gap: 7px; font-size: 11px; color: var(--muted); }
.legend .grad {
  width: 84px; height: 8px; border-radius: 5px;
  background: linear-gradient(90deg, hsl(130 68% 38%), hsl(60 68% 42%), hsl(0 68% 42%));
}
.filter-box { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.filter-box input {
  font-family: var(--mono); font-size: 12.5px;
  padding: 7px 11px; width: 210px; max-width: 42vw; color: var(--fg);
  background: #fff; border: 1px solid var(--sep); border-radius: 8px;
  transition: border-color .12s;
}
.filter-box input::placeholder { color: var(--faint); }
.filter-box input:hover { border-color: var(--blue); }
.filter-box input:focus { outline: none; border-color: var(--blue); }
.filter-box input.invalid, .filter-box input.invalid:focus { border-color: var(--red); }

.machine-picker { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.machine-picker select {
  font-family: var(--font); font-size: 13px; font-weight: 500;
  padding: 7px 11px; max-width: 42vw; color: var(--fg);
  background: #fff; border: 1px solid var(--sep); border-radius: 8px;
  cursor: pointer; transition: border-color .12s;
}
.machine-picker select:hover { border-color: var(--blue); }

/* ---- summary strip ---- */
.summary {
  max-width: 1340px; margin: 0 auto; padding: 18px 24px 0;
  display: flex; gap: 22px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--muted);
}
.summary b { color: var(--fg); font-weight: 600; }

/* ---- content: single column of suite cards, stacked vertically ---- */
main {
  max-width: 1340px;
  margin: 0 auto;
  padding: 16px 24px 8px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.suite {
  min-width: 0;
  background: var(--card);
  border: 1px solid var(--sep);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 16px 18px 12px;
}
.suite h2 {
  margin: 0 0 10px;
  padding-bottom: 9px;
  font-size: 15px;
  font-weight: 700;
  color: var(--blue-d);
  letter-spacing: .2px;
  border-bottom: 1px solid var(--sep);
  display: flex; align-items: baseline; gap: 8px;
}
/* Facet titles list operand variants inline (not the flex layout used for the
   suite link + description); tipped parts show a help cursor on hover. */
.suite h2.facet-title { display: block; }
.facet-part { cursor: help; }
.suite h2 .suite-link { color: inherit; text-decoration: none; }
.suite h2 .suite-link:hover { color: var(--blue); text-decoration: underline; }
.suite h2 .suite-desc {
  flex: 1;
  min-width: 0;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.4;
  color: var(--muted);
}

/* ---- table ---- */
/* Scroll horizontally instead of overflowing the card when there are many
   number-type columns. */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th {
  position: sticky; top: 0;
  padding: 4px 8px 8px;
  font-size: 11px; font-weight: 600;
  letter-spacing: .3px; color: var(--muted);
  border-bottom: 1px solid var(--sep);
  text-align: right;
  white-space: nowrap;
}
thead th:first-child { text-align: left; }
tbody td { padding: 3px 8px; border-bottom: 1px solid #f1f4f8; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--tint); }

td.fn { font-weight: 600; color: var(--fg); white-space: nowrap; }
td.val { font-family: var(--mono); }
td.val .cell {
  display: flex; align-items: center; justify-content: flex-end; gap: 8px;
}
td.val .num { font-variant-numeric: tabular-nums; font-size: 13px; }
td.val .num.heavy { font-weight: 700; }
td.val .cell-spark { flex: 0 0 auto; opacity: .9; }
td.clickable { cursor: pointer; }
td.clickable:hover .num { text-decoration: underline; text-decoration-color: var(--sep); }
td.empty { text-align: right; color: var(--faint); }

.unit-note { margin-top: 9px; font-size: 11px; color: var(--faint); }
.generated { padding: 8px 24px 28px; text-align: center; font-size: 11px; color: var(--faint); }
.empty-state { color: var(--muted); padding: 8px; }
.empty-state code {
  background: var(--tint); padding: 1px 5px; border-radius: 4px; font-family: var(--mono);
}

/* ---- hover preview bubble ---- */
#spark-pop {
  display: none; position: absolute; z-index: 50;
  padding: 9px 11px; background: #fff;
  border: 1px solid var(--sep); border-radius: 9px;
  box-shadow: 0 8px 26px rgba(16, 24, 40, .18);
  pointer-events: none;
}
#spark-pop .pop-title { font-size: 12px; font-weight: 600; color: var(--blue-d); margin-bottom: 5px; }
#spark-pop svg { display: block; }
#spark-pop .pop-stats { display: flex; gap: 12px; margin-top: 5px; font-size: 11px; font-family: var(--mono); }
#spark-pop .pop-stats .muted { color: var(--muted); }

/* ---- chart dialog ---- */
dialog#chart-dialog {
  width: 94vw; max-width: 94vw; padding: 0;
  border: 1px solid var(--sep); border-radius: 14px;
  box-shadow: 0 18px 50px rgba(16, 24, 40, .28);
}
dialog#chart-dialog[open] { animation: dialog-in .22s cubic-bezier(.2, .8, .2, 1); }
@keyframes dialog-in {
  from { opacity: 0; transform: translateY(10px) scale(.97); }
  to   { opacity: 1; transform: none; }
}
dialog#chart-dialog::backdrop {
  background: rgba(15, 23, 42, .38);
  backdrop-filter: blur(2px);
  animation: backdrop-in .22s ease;
}
@keyframes backdrop-in { from { opacity: 0; } to { opacity: 1; } }
.dialog-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 13px 18px; border-bottom: 1px solid var(--sep);
}
#chart-title { font-size: 13.5px; font-weight: 600; color: var(--blue-d); }
#chart-close {
  border: none; background: none; font-size: 22px; line-height: 1;
  color: var(--muted); cursor: pointer;
}
#chart-close:hover { color: var(--orange-d); }
.dialog-body { height: calc(92vh - 52px); padding: 16px; }

/* ---- filter bar: one multi-select chip group per cube dimension ---- */
.filters {
  max-width: 1340px; margin: 0 auto; padding: 14px 24px 0;
  display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: flex-start;
}
.filter-group { display: flex; align-items: center; gap: 7px; min-width: 0; }
.filter-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .4px;
  color: var(--muted); background: none; border: none; cursor: pointer;
  padding: 2px 0; white-space: nowrap;
}
.filter-label:hover { color: var(--blue); }
.chips { display: flex; flex-wrap: wrap; gap: 4px; }
.chip {
  font-family: var(--font); font-size: 12px; line-height: 1;
  padding: 5px 9px; border-radius: 999px; cursor: pointer;
  color: var(--muted); background: #fff; border: 1px solid var(--sep);
  transition: background .12s, color .12s, border-color .12s;
}
.chip:hover { border-color: var(--blue); color: var(--blue); }
.chip.on {
  color: #fff; background: var(--blue); border-color: var(--blue);
}
.swap-btn {
  margin-left: auto; align-self: center;
  font-family: var(--font); font-size: 12px; font-weight: 600;
  padding: 6px 12px; border-radius: 8px; cursor: pointer;
  color: var(--blue); background: #fff; border: 1px solid var(--sep);
}
.swap-btn:hover { border-color: var(--blue); background: var(--tint); }

/* ---- asymptotic benchmark page ---- */
.section-title {
  max-width: 1340px; margin: 26px auto 0; padding: 0 24px;
  font-size: 14px; font-weight: 700; letter-spacing: .3px; color: var(--blue-d);
}
.depth-picker { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.depth-picker input {
  font-family: var(--font); font-size: 12px; width: 52px;
  padding: 4px 6px; border-radius: 6px; border: 1px solid var(--sep); background: #fff;
}
.asym-category { padding-bottom: 6px; }
/* The compare axis is the one dimension whose chips are the chart's curves, so
   its label is marked rather than left looking like the radio groups. */
.filter-label.comparing { color: var(--blue-d); }
.filter-label.static { cursor: default; }
.filter-label.static:hover { color: var(--muted); }
.asym-filters { padding: 4px 0 10px; max-width: none; }
/* A combination this category never measured: still shown, so the shape of the
   cube stays visible, but plainly not a thing to click. */
.chip.unavailable { opacity: .38; cursor: default; }
.chip.unavailable:hover { border-color: var(--sep); color: var(--muted); }
.asym-chart { position: relative; height: 340px; margin-top: 8px; }

@media (max-width: 760px) {
  .topbar { align-items: flex-start; padding: 10px 14px; }
  .controls { justify-content: flex-end; flex-wrap: wrap; gap: 8px; }
  .legend { display: none; }
}