/* bandpass lab — instrument brutalism.
   black / off-white / one amber signal. thin hard borders. no gradients,
   no glass, no blobs, no rounded corners. the page is a machine doing work. */

:root {
  --bg: #0b0b0b;
  --panel: #101010;
  --ink: #e6e3dc;
  --ink-dim: #8a877f;
  --ink-faint: #55534d;
  --line: #262626;
  --line-hard: #3a3a3a;
  --amber: #ffb454;
  --green: #9ece6a;
  --red: #ff5f56;
  --cyan: #7dcfff;
  --mono: ui-monospace, "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { background: var(--bg); }

body {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink);
  background:
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(255, 255, 255, 0.008) 3px 4px),
    var(--bg);
  min-height: 100vh;
  padding-bottom: 2rem;
}

a { color: var(--amber); text-decoration: none; border-bottom: 1px dotted var(--amber); }
a:hover { border-bottom-style: solid; }

/* ---------- top bar ---------- */
.topbar {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--line-hard);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-size: 15px; font-weight: 700; letter-spacing: 0.12em; }
.brand .cursor { color: var(--amber); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.tagline { color: var(--ink-dim); font-size: 11px; letter-spacing: 0.18em; }
.top-links { margin-left: auto; display: flex; gap: 1rem; font-size: 11px; }

main {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
  max-width: 1180px;
  margin: 0 auto;
}

@media (min-width: 980px) {
  main { grid-template-columns: 1fr 1fr; }
  .control, .pipeline, .feed { grid-column: 1 / -1; }
}

/* ---------- panels ---------- */
.panel { background: var(--panel); padding: 0.9rem 1rem 1rem; min-width: 0; }
.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.4rem;
  margin-bottom: 0.7rem;
}
.panel-title { font-size: 11px; font-weight: 700; letter-spacing: 0.14em; }
.panel-note { color: var(--ink-faint); font-size: 10px; letter-spacing: 0.06em; }

/* ---------- control ---------- */
.control-grid { display: flex; gap: 1rem; align-items: end; flex-wrap: wrap; margin-bottom: 0.8rem; }
.field { display: flex; flex-direction: column; gap: 0.25rem; }
.field-label { font-size: 10px; color: var(--ink-dim); letter-spacing: 0.14em; }
.field-value { font-size: 14px; }
select {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line-hard);
  padding: 0.35rem 0.5rem;
  min-width: 340px;
  border-radius: 0;
}
.compile-btn {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--bg);
  background: var(--amber);
  border: 1px solid var(--amber);
  padding: 0.45rem 1.2rem;
  cursor: pointer;
  border-radius: 0;
}
.compile-btn:hover { background: var(--ink); border-color: var(--ink); }
.compile-btn:active { transform: translateY(1px); }
.compile-btn[disabled] { background: var(--line-hard); border-color: var(--line-hard); color: var(--ink-faint); cursor: wait; }

.counters { display: flex; gap: 1px; background: var(--line); border: 1px solid var(--line); flex-wrap: wrap; }
.counter { background: var(--panel); padding: 0.4rem 0.8rem; min-width: 96px; flex: 1; }
.counter-label { display: block; font-size: 9px; color: var(--ink-dim); letter-spacing: 0.16em; }
.counter-value { font-size: 20px; font-weight: 700; }
.counter-value.accent { color: var(--amber); }
.counter-value.warn { color: var(--red); }
.counter-value.dim { color: var(--cyan); }

.token-meter { position: relative; height: 18px; border: 1px solid var(--line-hard); margin-top: 0.7rem; background: var(--bg); }
.token-meter-fill { height: 100%; width: 0%; background: var(--amber); transition: width 0.7s ease; }
.token-meter-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 0.5rem;
  font-size: 10px;
  color: var(--ink);
  mix-blend-mode: difference;
}

/* ---------- pipeline ---------- */
.stages { display: flex; align-items: stretch; gap: 0.6rem; flex-wrap: wrap; }
.stage {
  flex: 1;
  min-width: 140px;
  border: 1px solid var(--line);
  padding: 0.45rem 0.6rem;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 0.6rem;
  align-items: baseline;
  background: var(--bg);
}
.stage-name { font-size: 11px; font-weight: 700; letter-spacing: 0.12em; }
.stage-count { font-size: 16px; font-weight: 700; text-align: right; color: var(--ink-dim); }
.stage-desc { grid-column: 1 / -1; font-size: 9px; color: var(--ink-faint); letter-spacing: 0.04em; }
.stage.active { border-color: var(--amber); }
.stage.active .stage-count { color: var(--amber); }
.stage.done { border-color: var(--line-hard); }
.stage.done .stage-count { color: var(--ink); }
.stage-arrow { align-self: center; color: var(--ink-faint); }

/* ---------- spectrum ---------- */
.spectrum { position: relative; height: 74px; border: 1px solid var(--line); background: var(--bg); margin-bottom: 0.8rem; }
.spectrum-band {
  position: absolute; top: 0; bottom: 0; left: 15%; width: 85%;
  border-left: 1px dashed var(--amber);
  background: repeating-linear-gradient(90deg, rgba(255, 180, 84, 0.05) 0 6px, transparent 6px 12px);
}
.spectrum-band::after { content: "PASSBAND"; position: absolute; top: 3px; right: 4px; font-size: 8px; letter-spacing: 0.2em; color: var(--amber); }
.spectrum-ticks { position: absolute; inset: 0; }
.tick {
  position: absolute;
  width: 2px;
  top: 14px;
  bottom: 14px;
  background: var(--ink-faint);
  transition: background 0.4s, height 0.4s, top 0.4s, opacity 0.4s;
}
.tick.hot { background: var(--amber); top: 8px; }
.tick.weak { background: var(--cyan); }
.tick.dead { background: var(--red); opacity: 0.35; height: 8px; top: auto; bottom: 14px; }
.spectrum-axis { position: absolute; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-between; padding: 0 4px; font-size: 8px; color: var(--ink-faint); }

/* ---------- feed ---------- */
.feed-list { max-height: 420px; overflow-y: auto; border: 1px solid var(--line); }
.feed-row {
  display: grid;
  grid-template-columns: 7ch 1fr 5ch 12ch;
  gap: 0.6rem;
  padding: 0.28rem 0.6rem;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  background: var(--panel);
  transition: opacity 0.35s;
}
.feed-row:last-child { border-bottom: none; }
.feed-id { color: var(--ink-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.feed-content { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.feed-rel { text-align: right; color: var(--ink-dim); }
.feed-state { font-size: 9px; letter-spacing: 0.1em; color: var(--ink-faint); text-align: right; }
.feed-row.sel .feed-state { color: var(--amber); }
.feed-row.unc .feed-state { color: var(--cyan); }
.feed-row.unk .feed-state { color: var(--cyan); }
.feed-row.out { opacity: 0.38; }
.feed-row.out .feed-content { text-decoration: line-through; text-decoration-color: var(--red); }
.feed-row.dead { opacity: 0.22; }
.feed-row .reject-tag { color: var(--red); font-size: 9px; }

/* ---------- capsule ---------- */
.capsule-empty { color: var(--ink-faint); padding: 1.2rem 0; text-align: center; letter-spacing: 0.2em; }
.capsule-header { border: 1px solid var(--line-hard); padding: 0.6rem 0.8rem; margin-bottom: 0.7rem; font-size: 12px; }
.capsule-header .ch-line { display: flex; gap: 0.8rem; }
.capsule-header .ch-k { color: var(--ink-dim); width: 8ch; font-size: 10px; letter-spacing: 0.12em; padding-top: 2px; }
.capsule-section { margin-bottom: 0.8rem; }
.capsule-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.2rem;
  margin-bottom: 0.3rem;
  color: var(--ink-dim);
}
.capsule-section-title .mark { margin-right: 0.4rem; }
.capsule-section.known .capsule-section-title { color: var(--amber); }
.capsule-section.uncertain .capsule-section-title { color: var(--cyan); }
.capsule-section.unknown .capsule-section-title { color: var(--cyan); }
.cap-item { padding: 0.3rem 0.2rem 0.3rem 1.1rem; position: relative; cursor: pointer; border-bottom: 1px dotted var(--line); }
.cap-item:hover { background: var(--bg); }
.cap-item .marker { position: absolute; left: 0.15rem; top: 0.3rem; }
.known .cap-item .marker { color: var(--green); }
.uncertain .cap-item .marker, .unknown .cap-item .marker { color: var(--cyan); }
.cap-content { font-size: 12px; }
.cap-meta { font-size: 9.5px; color: var(--ink-faint); letter-spacing: 0.03em; margin-top: 1px; }
.cap-meta b { color: var(--ink-dim); font-weight: 400; }
.cap-note { font-size: 9.5px; color: var(--cyan); }
.cap-item .why-hint { position: absolute; right: 0.3rem; top: 0.35rem; font-size: 9px; color: var(--ink-faint); }
.cap-item:hover .why-hint { color: var(--amber); }

/* ---------- why ---------- */
.why { border: 1px solid var(--amber); margin-top: 0.8rem; }
.why .panel-head { border-bottom: 1px solid var(--line-hard); margin-bottom: 0; padding: 0.4rem 0.6rem; }
.why-close { background: none; border: none; color: var(--ink-dim); font-family: var(--mono); font-size: 14px; cursor: pointer; }
.why-close:hover { color: var(--red); }
.why pre { padding: 0.6rem; font-size: 11px; white-space: pre-wrap; color: var(--ink); }

/* ---------- rejected ---------- */
.rejected-list { max-height: 420px; overflow-y: auto; border: 1px solid var(--line); }
.rej-row { padding: 0.3rem 0.6rem; border-bottom: 1px solid var(--line); }
.rej-row:last-child { border-bottom: none; }
.rej-head { display: flex; gap: 0.5rem; font-size: 11px; align-items: baseline; }
.rej-mark { color: var(--red); }
.rej-stage { color: var(--bg); background: var(--ink-faint); font-size: 8px; padding: 0 0.35rem; letter-spacing: 0.1em; }
.rej-id { color: var(--ink-dim); }
.rej-content { color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; text-decoration: line-through; text-decoration-color: rgba(255, 95, 86, 0.6); }
.rej-reason { font-size: 10px; color: var(--red); opacity: 0.85; padding-left: 1.1rem; }

/* ---------- diff ---------- */
.diff-list { border: 1px solid var(--line); max-height: 380px; overflow-y: auto; }
.diff-row { padding: 0.3rem 0.6rem; border-bottom: 1px solid var(--line); font-size: 11px; }
.diff-mark { display: inline-block; width: 1.2rem; font-weight: 700; }
.diff-row.add .diff-mark { color: var(--green); }
.diff-row.rem .diff-mark { color: var(--red); }
.diff-row.chg .diff-mark { color: var(--amber); }
.diff-row.unk .diff-mark { color: var(--cyan); }
.diff-row.res .diff-mark { color: var(--green); }
.diff-subject { color: var(--ink-dim); }
.diff-detail { color: var(--ink); padding-left: 1.2rem; font-size: 10.5px; }
.diff-summary { padding-top: 0.5rem; font-size: 11px; color: var(--amber); letter-spacing: 0.08em; }

/* ---------- footer ---------- */
.footer {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1rem;
  color: var(--ink-faint);
  font-size: 10px;
  flex-wrap: wrap;
}
.footer code { color: var(--ink-dim); }

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}