/* BENCH — leaderboard surface.
 * Sibling-flavor of timeline.html (observatory logbook) but with
 * podium accents (gold / silver / bronze for top-3) and clear
 * letter-grade color coding. Distinct 11th surface per CLAUDE.md
 * aesthetic-variety rule: "scientific scoreboard".
 *
 * NO innerHTML in bench.js — DOM mutated via createElement only.
 */

:root {
  --night:        #0a0e1a;
  --night-deep:   #060912;
  --night-rail:   #14192a;
  --rail-edge:    #1f2740;
  --ink-line:     #2a3556;

  --parchment:    #e9d8a3;
  --parchment-d:  #c7b885;
  --parchment-x:  #8d7e55;

  --brass:        #d8a440;
  --brass-d:      #a87c1f;
  --gold:         #f0c050;
  --silver:       #c8c8d8;
  --bronze:       #b87830;

  --grade-a:      #6ec79a;
  --grade-b:      #94c0e0;
  --grade-c:      #e9d8a3;
  --grade-d:      #d8a440;
  --grade-f:      #c66961;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 25% 0%, rgba(240,192,80,0.05), transparent 60%),
    radial-gradient(ellipse at 90% 100%, rgba(110,199,154,0.04), transparent 60%),
    linear-gradient(180deg, var(--night) 0%, var(--night-deep) 100%);
  color: var(--parchment);
  font-family: 'Familjen Grotesk', system-ui, sans-serif;
  font-size: 14.5px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

main, header, footer { position: relative; z-index: 1; }

/* ── masthead ─────────────────────────────────────────────────── */
.masthead {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 26px;
  border-bottom: 1px solid var(--ink-line);
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--parchment-d);
}
.mast-l, .mast-r { display: flex; align-items: center; gap: 12px; }
.mast-mark {
  font-size: 18px;
  color: var(--gold);
  text-shadow: 0 0 12px rgba(240,192,80,0.45);
}
.mast-title {
  font-family: 'Chakra Petch', monospace;
  font-size: 16px;
  letter-spacing: 0.22em;
  color: var(--parchment);
}
.mast-sub {
  color: var(--parchment-x);
  font-family: 'Familjen Grotesk', sans-serif;
  font-style: italic;
}
.mast-sep { color: var(--parchment-x); opacity: 0.55; }
.mast-stamp { color: var(--parchment-x); }
.bench-pick { display: flex; align-items: center; gap: 6px; }
.bench-pick select {
  background: var(--night-rail);
  border: 1px solid var(--rail-edge);
  color: var(--parchment);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 3px;
}

/* ── page ─────────────────────────────────────────────────────── */
.page {
  max-width: 1240px;
  margin: 0 auto;
  padding: 28px 26px 64px;
  display: grid;
  gap: 26px;
}

/* ── sysbar (live VRAM/RAM/resident) ─────────────────────────── */
.sysbar {
  background: var(--night-rail);
  border: 1px solid var(--rail-edge);
  border-radius: 4px;
  padding: 12px 16px;
  display: grid;
  gap: 8px;
}
.sysbar-row {
  display: grid;
  grid-template-columns: 70px 1fr 240px;
  gap: 14px;
  align-items: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
}
.sysbar-row.resident { grid-template-columns: 70px 1fr; }
.sysbar-label {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--parchment-x);
}
.sysbar-bar {
  position: relative;
  display: block;
  height: 8px;
  background: var(--night-deep);
  border: 1px solid var(--rail-edge);
  border-radius: 2px;
  overflow: hidden;
}
.sysbar-fill {
  display: block;
  height: 100%;
  background: var(--brass);
  transition: width 600ms ease;
}
.sysbar-fill.alt { background: var(--parchment-d); }
.sysbar-fill[data-band="warm"] { background: var(--brass); }
.sysbar-fill[data-band="hot"]  { background: #c66961; }
.sysbar-fill[data-band="cool"] { background: #6ec79a; }
.sysbar-val {
  color: var(--parchment-d);
  text-align: right;
}
.sysbar-models {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  color: var(--parchment-d);
}
.model-chip {
  background: var(--night-deep);
  border: 1px solid var(--rail-edge);
  border-radius: 2px;
  padding: 2px 8px;
  font-size: 11px;
  color: var(--parchment);
  letter-spacing: 0.04em;
}

/* ── meta ─────────────────────────────────────────────────────── */
.meta {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 14px;
}
@media (max-width: 900px) {
  .meta { grid-template-columns: 1fr; }
}

.meta-card {
  background: var(--night-rail);
  border: 1px solid var(--rail-edge);
  border-radius: 4px;
  padding: 14px 16px;
}
.meta-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--parchment-x);
}
.meta-text {
  margin: 6px 0 0;
  font-family: 'Familjen Grotesk', sans-serif;
  font-size: 13.5px;
  color: var(--parchment-d);
  line-height: 1.5;
  white-space: pre-wrap;
}

.meta-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
@media (max-width: 700px) {
  .meta-stats { grid-template-columns: repeat(2, 1fr); }
}

.stat-card {
  background: var(--night-rail);
  border: 1px solid var(--rail-edge);
  border-radius: 4px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  position: relative;
  overflow: hidden;
}
.stat-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 18px;
  height: 2px;
  background: var(--brass);
  opacity: 0.6;
}
.stat-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--parchment-x);
}
.stat-val {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 26px;
  font-weight: 500;
  color: var(--parchment);
  line-height: 1.05;
  margin-top: 2px;
}
.stat-foot {
  font-size: 11px;
  color: var(--parchment-x);
  font-family: 'IBM Plex Mono', monospace;
  margin-top: 2px;
}

/* ── leaderboard ──────────────────────────────────────────────── */
.board {
  background: var(--night-rail);
  border: 1px solid var(--rail-edge);
  border-radius: 4px;
  padding: 16px 18px;
}
.board-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink-line);
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 10px;
}
.board-h {
  margin: 0;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--parchment-d);
}
.legend {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.grade-chip {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border: 1px solid currentColor;
  border-radius: 2px;
}
.grade-chip[data-grade="A"] { color: var(--grade-a); }
.grade-chip[data-grade="B"] { color: var(--grade-b); }
.grade-chip[data-grade="C"] { color: var(--grade-c); }
.grade-chip[data-grade="D"] { color: var(--grade-d); }
.grade-chip[data-grade="F"] { color: var(--grade-f); }

.board-body { display: grid; gap: 6px; }

.row {
  display: grid;
  grid-template-columns: 56px 48px 70px 1fr 280px 90px;
  gap: 10px;
  align-items: center;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 3px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  transition: background 140ms, border-color 140ms;
  cursor: pointer;
}
.row:hover { background: rgba(216,164,64,0.05); border-color: var(--ink-line); }
@media (max-width: 900px) {
  .row { grid-template-columns: 40px 36px 60px 1fr; }
  .row .axes-mini, .row .penalty-chip { display: none; }
}

.rank {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13.5px;
  color: var(--parchment-d);
  text-align: center;
}
.rank[data-medal="1"] { color: var(--gold);   text-shadow: 0 0 6px rgba(240,192,80,0.4); }
.rank[data-medal="2"] { color: var(--silver); }
.rank[data-medal="3"] { color: var(--bronze); }

.grade {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 18px;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.04em;
  padding: 2px 0;
  border-radius: 2px;
  border: 1px solid currentColor;
}
.grade[data-grade="A"] { color: var(--grade-a); }
.grade[data-grade="B"] { color: var(--grade-b); }
.grade[data-grade="C"] { color: var(--grade-c); }
.grade[data-grade="D"] { color: var(--grade-d); }
.grade[data-grade="F"] { color: var(--grade-f); }

.score {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 20px;
  font-weight: 500;
  color: var(--parchment);
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.model {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--parchment);
  word-break: break-all;
}
.model-name { font-weight: 500; }
.model-meta { color: var(--parchment-x); font-size: 11px; }

.axes-mini {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 3px;
  align-items: end;
  height: 22px;
}
.axes-mini-bar {
  background: var(--parchment-x);
  border-radius: 1px 1px 0 0;
  min-height: 2px;
  position: relative;
}
.axes-mini-bar[data-band="hi"]  { background: var(--grade-a); }
.axes-mini-bar[data-band="mid"] { background: var(--grade-c); }
.axes-mini-bar[data-band="lo"]  { background: var(--grade-d); }
.axes-mini-bar[data-band="bad"] { background: var(--grade-f); }
.axes-mini-bar .tip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--night-deep);
  border: 1px solid var(--brass-d);
  color: var(--parchment);
  font-size: 10.5px;
  padding: 3px 6px;
  white-space: nowrap;
  border-radius: 2px;
  opacity: 0;
  pointer-events: none;
  z-index: 5;
  margin-bottom: 4px;
}
.axes-mini-bar:hover .tip { opacity: 1; }

.latency {
  text-align: right;
  font-size: 11.5px;
  color: var(--parchment-x);
}

.penalty-chip {
  font-size: 10px;
  color: var(--grade-f);
  background: rgba(198,105,97,0.1);
  border: 1px solid rgba(198,105,97,0.4);
  border-radius: 2px;
  padding: 1px 5px;
  margin-left: 4px;
}

/* ── detail panel ─────────────────────────────────────────────── */
.detail {
  background: var(--night-rail);
  border: 1px solid var(--rail-edge);
  border-radius: 4px;
  padding: 16px 18px;
}
.detail-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink-line);
  margin-bottom: 12px;
}
.detail-rank {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13.5px;
  color: var(--brass);
}
.detail-model {
  margin: 0;
  flex: 1;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 16px;
  color: var(--parchment);
  letter-spacing: 0.02em;
}
.detail-close {
  background: transparent;
  border: 1px solid var(--ink-line);
  color: var(--parchment-d);
  font-size: 18px;
  width: 32px;
  height: 32px;
  border-radius: 2px;
  cursor: pointer;
}
.detail-close:hover { background: var(--ink-line); color: var(--parchment); }

.detail-body { display: grid; gap: 14px; }

.axes { display: grid; gap: 6px; }
.axis-row {
  display: grid;
  grid-template-columns: 200px 1fr 56px;
  align-items: center;
  gap: 12px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--parchment-d);
}
.axis-name { letter-spacing: 0.04em; }
.axis-bar {
  position: relative;
  height: 10px;
  background: var(--ink-line);
  border-radius: 2px;
  overflow: hidden;
}
.axis-bar-fill {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  background: var(--brass);
  transition: width 320ms cubic-bezier(0.4, 0, 0.2, 1);
}
.axis-bar-fill[data-band="hi"]  { background: var(--grade-a); }
.axis-bar-fill[data-band="mid"] { background: var(--grade-c); }
.axis-bar-fill[data-band="lo"]  { background: var(--grade-d); }
.axis-bar-fill[data-band="bad"] { background: var(--grade-f); }
.axis-val {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--parchment);
}

.penalties {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.penalties-pill {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  color: var(--grade-f);
  background: rgba(198,105,97,0.1);
  border: 1px solid rgba(198,105,97,0.4);
  border-radius: 2px;
  padding: 3px 8px;
}

.cases {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  color: var(--parchment-x);
}

/* ── footer ──────────────────────────────────────────────────── */
.margin {
  display: flex;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--ink-line);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px;
  color: var(--parchment-x);
  letter-spacing: 0.08em;
}
.margin-link {
  color: var(--brass);
  text-decoration: none;
}
.margin-link:hover { color: var(--parchment); text-decoration: underline; }

.empty {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--parchment-x);
  padding: 18px 4px;
  text-align: center;
  font-style: italic;
}