/* ============================================================
   MIMIR — Live tests (FMV Battleweek)
   Builds on main.css: same tokens, captions, frames and type.
   Everything here is additive; nothing in main.css is overridden
   except the nav's mobile "Live Tests" link.
   ============================================================ */

/* ---------- section rail ---------- */
.bw-rail {
  position: fixed;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.bw-rail a {
  position: relative;
  display: block;
  width: 9px;
  height: 9px;
  border: 1px solid var(--border-bright);
  border-radius: 50%;
  transition: background-color .2s var(--ease), border-color .2s var(--ease);
}
.bw-rail a span {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-1);
  background: rgba(4, 7, 11, .9);
  border: 1px solid var(--border);
  padding: 4px 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .15s var(--ease);
}
.bw-rail a:hover span,
.bw-rail a:focus-visible span { opacity: 1; }
.bw-rail a.is-active { background: var(--gold); border-color: var(--gold); }
@media (max-width: 1240px) { .bw-rail { display: none; } }

/* ---------- hero ---------- */
.bw-hero { padding-block: 150px 40px; }
.bw-hero-grid {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.bw-hero-copy > * { max-width: 640px; }
.bw-hero-media { max-width: 400px; justify-self: end; width: 100%; }
.bw-stats {
  margin-top: clamp(48px, 7vw, 80px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  overflow: hidden;
}
.bw-stat { background: var(--surface); padding: 26px 24px 22px; }
.bw-stat-n {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight: 500;
  color: var(--text-1);
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.bw-stat-u {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.bw-gold { color: var(--gold); }
.bw-hot { color: var(--hostile); }
.bw-source {
  margin-top: 14px;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mute);
}

/* ---------- context ---------- */
.bw-cols-context h2,
.bw-cols-learn h2 { margin-bottom: 20px; }
.bw-cols-context { grid-template-columns: 1.2fr 1fr; align-items: start; }
.bw-note { margin-top: 18px; font-size: 14px; color: var(--text-mute); }
.bw-link { color: var(--gold); border-bottom: 1px solid rgba(216, 180, 90, .35); }
.bw-link:hover { border-bottom-color: var(--gold); }
.bw-daycards { display: grid; gap: 12px; }
.bw-daycards li {
  display: grid;
  gap: 4px;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: var(--r2);
  background: var(--surface);
}
.bw-daycards .mono { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--gold); }
.bw-daycards strong { font-size: 17px; }
.bw-daycards span:not(.mono) { font-size: 14px; }
.bw-daycards em { font-size: 14px; color: var(--text-1); }

/* ---------- system chain ---------- */
.bw-chain {
  display: grid;
  grid-template-columns: 1fr 28px 1fr 28px 1fr 28px 1.15fr;
  align-items: stretch;
}
.bw-node {
  appearance: none;
  font: inherit;
  text-align: left;
  cursor: pointer;
  display: grid;
  gap: 6px;
  padding: 20px 18px;
  border: 1px solid var(--border);
  border-radius: var(--r2);
  background: var(--surface);
  color: var(--text-2);
  transition: border-color .15s var(--ease), background-color .15s var(--ease), transform .15s var(--ease);
}
.bw-node:hover { border-color: var(--border-bright); transform: translateY(-2px); }
.bw-node[aria-selected="true"] { border-color: var(--gold); background: var(--surface-2); }
.bw-node-k { font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-mute); }
.bw-node-t { font-size: 18px; font-weight: 600; color: var(--text-1); }
.bw-node-c { font-size: 13px; }
.bw-node-mimir .bw-node-t { color: var(--gold); }
.bw-flow {
  align-self: center;
  height: 1px;
  background: linear-gradient(90deg, var(--border-bright), var(--gold));
  position: relative;
  overflow: hidden;
}
.bw-flow::after {
  content: "";
  position: absolute;
  inset: -1px auto -1px 0;
  width: 10px;
  background: var(--gold);
  animation: bw-pulse 2.2s linear infinite;
}
@keyframes bw-pulse { from { transform: translateX(-12px); } to { transform: translateX(40px); } }
.bw-chain-panel {
  margin-top: 20px;
  padding: 26px 28px;
  border: 1px solid var(--border);
  border-radius: var(--r2);
  background: var(--surface);
  min-height: 160px;
}
.bw-chain-panel h3 { font-size: 17px; margin-bottom: 10px; }
.bw-chain-panel p { max-width: 72ch; }
.bw-ticks { display: grid; gap: 10px; }
.bw-ticks li { position: relative; padding-left: 18px; font-size: 15px; max-width: 80ch; }
.bw-ticks li::before { content: "◆"; position: absolute; left: 0; top: 1px; font-size: 9px; color: var(--gold); }

button.btn { background: transparent; cursor: pointer; }

/* ---------- three days ---------- */
.bw-scrub {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 18px;
  align-items: center;
  margin-bottom: 22px;
}
.bw-scrub-l { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-1); }
.bw-scrub-days {
  grid-column: 2;
  display: grid;
  grid-template-columns: 7fr 7fr 11fr;
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.bw-scrub-out { grid-column: 2; font-size: 12px; color: var(--gold); min-height: 1.4em; }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 22px;
  background: transparent;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track { height: 2px; background: var(--border-bright); }
input[type="range"]::-moz-range-track { height: 2px; background: var(--border-bright); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px; margin-top: -7px;
  border-radius: 50%;
  background: var(--canvas);
  border: 2px solid var(--gold);
}
input[type="range"]::-moz-range-thumb {
  width: 13px; height: 13px;
  border-radius: 50%;
  background: var(--canvas);
  border: 2px solid var(--gold);
}

.bw-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 28px; overflow-x: auto; }
.bw-tabs button,
.bw-chapters button {
  appearance: none;
  font: inherit;
  cursor: pointer;
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--text-2);
  padding: 14px 20px 12px;
  font-size: 15px;
  white-space: nowrap;
  transition: color .15s var(--ease), border-color .15s var(--ease);
}
.bw-tabs button .mono { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-mute); margin-right: 6px; }
.bw-tabs button:hover,
.bw-chapters button:hover { color: var(--text-1); }
.bw-tabs button[aria-selected="true"],
.bw-chapters button[aria-selected="true"] { color: var(--text-1); border-bottom-color: var(--gold); }

.bw-day-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(28px, 4vw, 56px); align-items: start; }
.bw-q { font-size: 17px; color: var(--text-1); margin-bottom: 20px; }
.bw-q .mono { display: block; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--gold); margin-bottom: 4px; }

.bw-tl { position: relative; padding-left: 22px; }
.bw-tl::before { content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 1px; background: var(--border); }
.bw-tl li { position: relative; }
.bw-tl li::before {
  content: "";
  position: absolute;
  left: -21px;
  top: 15px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid var(--border-bright);
  background: var(--canvas);
  transition: background-color .15s var(--ease), border-color .15s var(--ease);
}
.bw-tl li.bw-fix::before { border-color: rgba(216, 180, 90, .7); }
.bw-tl li.is-on::before { background: var(--gold); border-color: var(--gold); }
.bw-tl button {
  appearance: none;
  font: inherit;
  cursor: pointer;
  background: none;
  border: 0;
  text-align: left;
  width: 100%;
  padding: 9px 0;
  color: var(--text-1);
  font-size: 15px;
  display: flex;
  gap: 14px;
  align-items: baseline;
}
.bw-tl button .mono { flex: none; min-width: 88px; font-size: 12px; color: var(--text-mute); }
.bw-tl li.bw-fix button .mono { color: var(--gold); }
.bw-tl button:hover { color: var(--gold); }
.bw-tl p {
  font-size: 14px;
  max-width: 60ch;
  padding: 0 0 14px 102px;
}
.js .bw-tl p { display: none; }
.js .bw-tl li.is-on p { display: block; animation: bw-in .25s var(--ease-out) both; }
@keyframes bw-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

.bw-tiles,
.bw-ba-out,
.bw-flight-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  overflow: hidden;
}
.bw-tiles > div,
.bw-ba-out > div,
.bw-flight-facts > div { background: var(--surface); padding: 18px 18px 16px; }
.bw-tile-n {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-1);
  font-variant-numeric: tabular-nums;
  transition: color .2s var(--ease);
}
.bw-tile-l { display: block; margin-top: 6px; font-size: 12px; line-height: 1.45; color: var(--text-mute); }
.bw-ba-out { grid-template-columns: repeat(3, 1fr); margin-top: 10px; }
.bw-ba { margin-top: 22px; }
.bw-ba-ends { display: flex; justify-content: space-between; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-mute); }
.bw-ba.is-after .bw-ba-ends span:last-child,
.bw-ba:not(.is-after) .bw-ba-ends span:first-child { color: var(--gold); }

.bw-chart { margin-top: 22px; }
.bw-chart-h { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-1); margin-bottom: 10px; }
.bw-bars { display: grid; gap: 7px; }
.bw-bar {
  display: grid;
  grid-template-columns: 150px 1fr 56px;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  cursor: default;
}
.bw-bar-track { display: block; height: 10px; background: var(--surface-2); border-radius: var(--r1); overflow: hidden; }
.bw-bar-fill {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, rgba(216, 180, 90, .45), var(--gold));
  transition: transform .7s var(--ease-out);
}
.bw-bar.is-cool .bw-bar-fill { background: linear-gradient(90deg, rgba(82, 214, 244, .3), rgba(82, 214, 244, .8)); }
.bw-bar.is-hot .bw-bar-fill { background: linear-gradient(90deg, rgba(255, 74, 74, .45), var(--hostile)); }
.bw-bar-v { font-family: var(--font-mono); font-size: 12px; color: var(--text-1); text-align: right; font-variant-numeric: tabular-nums; }
.bw-bar:hover .bw-bar-fill,
.bw-bar:focus-within .bw-bar-fill { filter: brightness(1.25); }
.bw-bar:hover { color: var(--text-1); }

.bw-explain { margin-top: 26px; padding: 20px 22px; border: 1px dashed var(--border); border-radius: var(--r2); }
.bw-explain p:not(.bw-chart-h) { font-size: 14px; max-width: 62ch; }

.bw-parts { margin-top: 22px; }
.bw-parts-bar { display: flex; gap: 3px; }
.bw-parts-bar button {
  appearance: none;
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-2);
  height: 44px;
  border-radius: var(--r1);
  text-align: left;
  padding: 0 8px;
  overflow: hidden;
  transition: background-color .15s var(--ease), border-color .15s var(--ease);
}
.bw-parts-bar button .mono { font-size: 10px; letter-spacing: .06em; white-space: nowrap; }
.bw-parts-bar button[data-part="one_frame_burst"] { background: repeating-linear-gradient(135deg, var(--surface-2) 0 5px, rgba(126, 151, 168, .12) 5px 10px); }
.bw-parts-bar button[data-part="fixed_wing"] { background: rgba(216, 180, 90, .12); }
.bw-parts-bar button[aria-pressed="true"] { border-color: var(--gold); color: var(--text-1); }
.bw-parts-out { margin-top: 12px; font-size: 14px; min-height: 3em; }

.bw-daytable { margin-top: clamp(48px, 6vw, 72px); overflow-x: auto; }
.bw-daytable table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 560px; }
.bw-daytable caption { text-align: left; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-1); padding-bottom: 12px; }
.bw-daytable th,
.bw-daytable td { padding: 11px 14px; border-bottom: 1px solid var(--border); text-align: right; font-variant-numeric: tabular-nums; }
.bw-daytable thead th { font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-mute); font-weight: 500; }
.bw-daytable tbody th { text-align: left; font-weight: 400; color: var(--text-2); }
.bw-daytable td { color: var(--text-1); font-family: var(--font-mono); font-size: 13px; }
.bw-daytable td:last-child { color: var(--gold); }

/* ---------- flight player ---------- */
.bw-chapters { display: flex; flex-wrap: wrap; border-bottom: 1px solid var(--border); margin-bottom: 18px; }
.bw-chapters button { font-size: 14px; }
.bw-stage .frame { margin: 0; }
.bw-closing { display: grid; gap: 18px; grid-template-columns: 1.15fr 1fr; align-items: start; }
.bw-flight-facts { grid-template-columns: repeat(4, 1fr); margin-top: 22px; }

/* ---------- zig-zag replay ---------- */
.bw-replay {
  display: grid;
  grid-template-columns: 1fr .9fr .75fr;
  grid-template-areas: "scope trace clip" "ctl ctl ctl";
  gap: 18px 24px;
  align-items: start;
}
.bw-scope-wrap { grid-area: scope; }
.bw-trace-wrap { grid-area: trace; }
.bw-replay-clip { grid-area: clip; margin: 0; }
.bw-replay-ctl { grid-area: ctl; display: grid; grid-template-columns: auto auto 1fr; gap: 14px; align-items: center; }
.bw-scope {
  width: 100%;
  aspect-ratio: 1;
  display: block;
  background: radial-gradient(circle at 50% 50%, rgba(82, 214, 244, .06), transparent 70%);
  border: 1px solid var(--border);
  border-radius: 50%;
}
.bw-scope-grid circle { fill: none; stroke: var(--border); stroke-width: .6; }
.bw-scope-grid line { stroke: var(--border); stroke-width: .5; }
.bw-scope-grid text { fill: var(--text-mute); font-family: var(--font-mono); font-size: 7px; text-anchor: middle; dominant-baseline: middle; }
.bw-scope-grid .bw-sector { fill: rgba(216, 180, 90, .06); stroke: none; }
.bw-scope-ray { stroke: var(--gold); stroke-width: 1.6; stroke-dasharray: 3 2.5; }
.bw-scope.is-camera .bw-scope-ray { stroke: var(--friendly); stroke-dasharray: none; }
.bw-scope-wake { fill: none; stroke: rgba(216, 180, 90, .55); stroke-width: 1; }
.bw-scope-dot { fill: var(--gold); }
.bw-scope-mast { fill: var(--text-1); }
.bw-scope-dot.is-turn { animation: bw-ping .6s var(--ease-out); }
@keyframes bw-ping { 0% { r: 3.2; } 40% { r: 8; } 100% { r: 3.2; } }
.bw-scope-read { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 12px; font-size: 12px; color: var(--text-mute); }
.bw-scope-read b { color: var(--text-1); font-weight: 500; font-variant-numeric: tabular-nums; }
.bw-sound { color: var(--gold); }
.bw-sound.is-camera { color: var(--friendly); }

.bw-trace { width: 100%; height: 420px; display: block; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r2); }
.bw-trace-grid line { stroke: var(--border); stroke-width: .6; vector-effect: non-scaling-stroke; }
.bw-trace-grid text { fill: var(--text-mute); font-family: var(--font-mono); font-size: 9px; }
.bw-trace-all { fill: none; stroke: rgba(126, 151, 168, .35); stroke-width: 1.2; vector-effect: non-scaling-stroke; }
.bw-trace-now { fill: none; stroke: var(--gold); stroke-width: 2; vector-effect: non-scaling-stroke; }
.bw-trace-turns circle { fill: var(--canvas); stroke: var(--gold); stroke-width: 1.4; vector-effect: non-scaling-stroke; opacity: .35; transition: opacity .2s var(--ease); }
.bw-trace-turns circle.is-past { opacity: 1; }
.bw-trace-cursor { stroke: var(--gold); stroke-width: .8; stroke-dasharray: 2 3; vector-effect: non-scaling-stroke; }
.bw-trace-l { margin-top: 10px; font-size: 11px; color: var(--text-mute); }

.bw-turns { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px; margin-top: 22px; background: var(--border); border: 1px solid var(--border); border-radius: var(--r2); overflow: hidden; }
.bw-turns li { background: var(--surface); padding: 12px 14px; display: grid; gap: 2px; font-size: 11px; color: var(--text-mute); transition: background-color .2s var(--ease); }
.bw-turns li b { font-size: 16px; color: var(--text-1); font-weight: 500; }
.bw-turns li.is-past { background: rgba(216, 180, 90, .08); }
.bw-turns li.is-past b { color: var(--gold); }
.bw-callout { margin-top: 26px; }

/* ---------- fixes line ---------- */
.bw-fixline-track {
  position: relative;
  height: 96px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background:
    linear-gradient(90deg, transparent calc(33.3% - .5px), var(--border) calc(33.3% - .5px), var(--border) calc(33.3% + .5px), transparent calc(33.3% + .5px)),
    linear-gradient(90deg, transparent calc(66.6% - .5px), var(--border) calc(66.6% - .5px), var(--border) calc(66.6% + .5px), transparent calc(66.6% + .5px));
}
.bw-fixline-day { position: absolute; left: calc(var(--x) * 1%); top: 8px; padding-left: 10px; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-mute); }
.bw-fixmark {
  position: absolute;
  left: calc(var(--x) * 1%);
  top: 38px;
  width: 16px;
  height: 16px;
  margin-left: -8px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  background: var(--canvas);
  cursor: pointer;
  padding: 0;
  transition: background-color .15s var(--ease);
}
.bw-fixmark:hover,
.bw-fixmark[aria-selected="true"] { background: var(--gold); }
.bw-fixmark-t {
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  letter-spacing: .04em;
  color: var(--text-mute);
  white-space: nowrap;
}
.bw-fixmark[aria-selected="true"] .bw-fixmark-t { color: var(--gold); }
@media (max-width: 700px) { .bw-fixmark-t { display: none; } }
.bw-fixline-out {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 140px 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  overflow: hidden;
  min-height: 120px;
}
.bw-fixline-out > div { background: var(--surface); padding: 18px 20px; }
.bw-fixline-out .mono { font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-mute); display: block; margin-bottom: 6px; }
.bw-fixline-out .bw-when { font-family: var(--font-mono); color: var(--gold); font-size: 1.3rem; }
.bw-fixline-out p { font-size: 14px; color: var(--text-1); }
.bw-fixlist { display: grid; gap: 8px; font-size: 15px; }

/* ---------- learned ---------- */
.bw-cols-learn { grid-template-columns: 1.2fr 1fr; align-items: start; }
.bw-pull {
  margin-top: 26px !important;
  padding-left: 18px;
  border-left: 2px solid var(--gold);
  color: var(--text-1);
  font-size: 18px;
  line-height: 1.5;
}
.bw-gauges { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--r2); overflow: hidden; }
.bw-gauge { background: var(--surface); padding: 18px; text-align: center; }
.bw-gauge svg { width: 100%; max-width: 160px; display: block; margin: 0 auto 6px; }
.bw-g-bg { fill: none; stroke: var(--border); stroke-width: 9; stroke-linecap: round; }
.bw-g-fg { fill: none; stroke: var(--gold); stroke-width: 9; stroke-linecap: round; stroke-dasharray: 158; stroke-dashoffset: 158; transition: stroke-dashoffset 1.2s var(--ease-out); }

/* ---------- operator drill ---------- */
.bw-drill { max-width: 880px; }
.bw-card {
  border: 1px solid var(--border);
  border-radius: var(--r2);
  background: var(--surface);
  overflow: hidden;
  animation: bw-in .3s var(--ease-out) both;
}
.bw-card-head {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.bw-prio { padding: 3px 8px; border-radius: var(--r1); color: #fff; font-weight: 600; letter-spacing: .06em; }
.bw-prio[data-p="2"] { background: #B3261E; }
.bw-prio[data-p="3"] { background: #8A5A00; }
.bw-prio[data-p="4"] { background: #2E4A5F; }
.bw-card-progress { margin-left: auto; color: var(--text-2); }
.bw-card-body { padding: 22px 20px; }
.bw-card-orig { font-family: var(--font-mono); font-size: 14px; color: var(--text-1); line-height: 1.55; }
.bw-card-tr { margin-top: 10px; font-size: 14px; color: var(--text-2); }
.bw-card-tr::before { content: "English: "; color: var(--text-mute); }
.bw-card-act { display: flex; flex-wrap: wrap; gap: 10px; padding: 0 20px 22px; }
.bw-card-act button { cursor: pointer; background: none; }
.bw-act-approve { color: var(--ok); border-color: rgba(111, 219, 143, .45); }
.bw-act-reject { color: var(--text-1); }
.bw-act-escalate { color: var(--contested); border-color: rgba(255, 179, 71, .45); }
.bw-card-act button:hover { background: rgba(215, 228, 236, .04); }
.bw-reveal-box {
  border-top: 1px solid var(--border);
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  animation: bw-in .3s var(--ease-out) both;
}
.bw-reveal-box h4 { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-mute); font-weight: 500; margin-bottom: 8px; }
.bw-reveal-box p { font-size: 14px; }
.bw-match { color: var(--ok); }
.bw-diff { color: var(--contested); }
.bw-record { font-family: var(--font-mono); font-size: 12px; line-height: 1.7; color: var(--text-2); background: var(--canvas); border: 1px solid var(--border); border-radius: var(--r1); padding: 12px 14px; white-space: pre-wrap; }
.bw-record b { color: var(--gold); font-weight: 500; }
.bw-card-next { grid-column: 1 / -1; justify-self: start; cursor: pointer; background: none; }
.bw-summary p { font-size: 16px; color: var(--text-1); }
.bw-summary p + p { margin-top: 10px; font-size: 14px; color: var(--text-2); }
.bw-summary .btn { margin-top: 20px; cursor: pointer; background: none; }

/* ---------- open ---------- */
.bw-open { display: grid; gap: 0; max-width: 920px; }
.bw-open li {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 18px;
  align-items: start;
  padding: 20px 0;
  border-top: 1px solid var(--border);
}
.bw-open li:last-child { border-bottom: 1px solid var(--border); }
.bw-open h3 { font-size: 16px; }
.bw-open p { margin-top: 4px; font-size: 14px; max-width: 64ch; }

/* ---------- reveal on scroll ---------- */
.js .bw-reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s var(--ease-out), transform .6s var(--ease-out); }
.js .bw-reveal.is-in { opacity: 1; transform: none; }

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .bw-flow::after { animation: none; display: none; }
  .js .bw-reveal { opacity: 1; transform: none; transition: none; }
  .bw-bar-fill, .bw-g-fg, .bw-node { transition: none; }
  .bw-tl li.is-on p, .bw-card, .bw-reveal-box { animation: none; }
  .bw-scope-dot.is-turn { animation: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .bw-hero-grid,
  .bw-cols-context,
  .bw-cols-learn,
  .bw-day-grid,
  .bw-closing { grid-template-columns: 1fr; }
  .bw-hero-media { justify-self: start; max-width: 340px; }
  .bw-stats { grid-template-columns: 1fr 1fr; }
  .bw-chain { grid-template-columns: 1fr; gap: 0; }
  .bw-flow { width: 1px; height: 18px; justify-self: center; background: linear-gradient(180deg, var(--border-bright), var(--gold)); }
  .bw-flow::after { display: none; }
  .bw-replay { grid-template-columns: 1fr 1fr; grid-template-areas: "scope trace" "clip clip" "ctl ctl"; }
  .bw-replay-clip { max-width: 360px; }
  .bw-flight-facts { grid-template-columns: 1fr 1fr; }
  .bw-turns { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 700px) {
  .bw-hero { padding-top: 110px; }
  .bw-tab-l { display: none; }
  .bw-tabs button { flex: 1; padding-inline: 8px; }
  .bw-tabs button .mono { margin-right: 0; font-size: 12px; color: inherit; }
  .bw-replay { grid-template-columns: 1fr; grid-template-areas: "scope" "trace" "ctl" "clip"; }
  .bw-trace { height: 300px; }
  .bw-tl p { padding-left: 0; }
  .bw-tl button { flex-direction: column; gap: 2px; }
  .bw-bar { grid-template-columns: 110px 1fr 44px; font-size: 12px; }
  .bw-fixline-out { grid-template-columns: 1fr; }
  .bw-reveal-box { grid-template-columns: 1fr; }
  .bw-ba-out { grid-template-columns: repeat(3, 1fr); }
  .bw-open li { grid-template-columns: 1fr; gap: 8px; }
  .bw-replay-ctl { grid-template-columns: auto auto; }
  .bw-replay-ctl input { grid-column: 1 / -1; }
}