/*
  DiMastro — Virtual Oscilloscope (staging preview)
  --------------------------------------------------
  Loaded after bench-calculators.css. Adds the two component types that
  page doesn't already have: range sliders and the scope canvas. Everything
  else on this page (fields, result cards, warning note, header) reuses the
  existing .tbc-* classes untouched.
*/

.vs-slider-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
}
.vs-slider-row .tbc-field-label { margin: 0; }
.vs-slider-val {
  font-family: var(--tbc-font-mono);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--tbc-glow);
}

.vs-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 999px;
  background: var(--tbc-border);
  outline: none;
  margin: 4px 0 2px;
}
.vs-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--tbc-glow);
  border: 2px solid var(--tbc-panel);
  cursor: pointer;
}
.vs-range::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--tbc-glow);
  border: 2px solid var(--tbc-panel);
  cursor: pointer;
}

.vs-scope {
  position: relative;
  padding: 0;
  margin-bottom: 18px;
  background: transparent;
  box-shadow: none;
}
.vs-scope-inner {
  background: linear-gradient(155deg, #9a9b9f 0%, #7d7e82 100%);
  border-radius: 10px;
  padding: 10px;
  box-shadow: inset 0 2px 5px rgba(0,0,0,0.5);
}
.vs-scope canvas { display: block; width: 100%; height: auto; border-radius: 3px; }

.vs-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 10px;
}
.vs-compare-card {
  background: rgba(34, 27, 21, 0.6);
  border: 1px solid var(--tbc-border-soft);
  border-radius: var(--tbc-radius-sm);
  padding: 10px 12px;
}
.vs-compare-card .who {
  font-family: var(--tbc-font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--tbc-ink-faint);
  margin: 0 0 4px;
}
.vs-compare-card .num {
  font-family: var(--tbc-font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--tbc-ink);
}

@media (max-width: 640px) {
  .vs-compare { grid-template-columns: 1fr; }
}

/* ── scope + pitch knob row, wrapped in a single card ── */
.vs-scope-card {
  background: rgb(69 69 69 / 80%);
  border: 1.5px solid #919191;
  border-radius: var(--tbc-radius-sm);
  padding: 16px;
  margin-bottom: 18px;
}
.vs-scope-row {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}
.vs-scope-row .vs-scope { flex: 1 1 auto; margin-bottom: 0; min-width: 0; }
.vs-pitch-col {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 84px;
}
.vs-pitch-col .ts-ctl-name { color: var(--tbc-ink-muted); }
.vs-pitch-col .ts-ctl-num { color: var(--tbc-glow); text-shadow: none; }
.vs-knob-sm { width: 44px; height: 44px; }

@media (max-width: 640px) {
  .vs-scope-row { flex-direction: column; }
  .vs-pitch-col { flex-direction: row; flex-wrap: wrap; justify-content: center; width: auto; gap: 14px; }
}

/* ── graphical knobs, ported from the Tone Stack Calculator's .ts-knob
   widget: real rotating knob images, per-brand faceplate colors and
   badge, same drag/keyboard/wheel interaction. ── */
.ts-controls { margin-top: 4px; }

.ts-knobs-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: 18px 30px;
  padding: 16px 20px;
  background:
    linear-gradient(180deg, var(--face-hi, #d2d5df) 0%, var(--face-mid, #bfbfc5) 45%, var(--face-lo, #898885) 100%);
  border: 1.5px solid var(--face-outline, #498aa5);
  border-radius: var(--tbc-radius-sm);
  outline: 1.5px solid var(--face-outline, #498aa5);
  outline-offset: 4px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .5), inset 0 -1px 0 rgba(0, 0, 0, .15);
  transition: background .2s ease, border-color .2s ease, outline-color .2s ease;
}

.ts-badge-wrap { flex: 1 1 auto; display: flex; justify-content: center; align-items: center; min-width: 40px; overflow: hidden; }
.ts-badge { height: 84px; width: auto; max-width: 100%; display: block; object-fit: contain; }

.ts-knobs-group { display: flex; flex-wrap: nowrap; justify-content: center; gap: 18px 26px; flex-shrink: 0; }

@media (max-width: 640px) {
  .ts-knobs-row { flex-direction: column; flex-wrap: wrap; }
  .ts-badge-wrap { flex: 0 0 auto; width: 100%; }
}

.ts-ctl { display: flex; flex-direction: column; align-items: center; gap: 6px; width: 84px; }
.ts-ctl[data-disabled="true"] { opacity: .45; }

.ts-knobs-row .ts-ctl-name {
  font-family: var(--tbc-font-display); font-size: 12px; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase; color: var(--face-text, #232427);
}

.ts-knob { position: relative; width: 64px; height: 64px; cursor: ns-resize; touch-action: none; border-radius: 50%; }
.ts-knob-face { display: block; width: 100%; height: 100%; pointer-events: none; user-select: none; -webkit-user-drag: none; }
.ts-knob:focus-visible { outline: 2px solid var(--tbc-glow); outline-offset: 3px; }
.ts-knob[aria-disabled="true"] { cursor: default; }

.ts-ctl-num { font: 700 12.5px var(--tbc-font-mono); color: var(--face-text, #232427); text-shadow: 0 1px 2px rgba(0,0,0,0.25); }

/* ── signal generator: same card treatment as the scope, wrapping the
   frequency-preset dropdown + the 7-segment LED readout ── */
.vs-siggen-card {
  background: rgb(69 69 69 / 80%);
  border: 1.5px solid #919191;
  border-radius: var(--tbc-radius-sm);
  padding: 16px;
  margin-bottom: 18px;
}
.vs-siggen-row {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  margin-bottom: 0;
}
.vs-siggen-select { flex: 1 1 auto; min-width: 0; margin-bottom: 0; }

.vs-seg-card {
  flex: 0 0 auto;
  background: rgba(42, 33, 25, 0.8);
  border: 1px solid var(--tbc-border-soft);
  border-radius: var(--tbc-radius-sm);
  padding: 8px;
}
.vs-seg-frame {
  padding: 3px;
  border-radius: 5px;
  background: linear-gradient(155deg, #6b6d72 0%, #38393c 55%, #232427 100%);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.25), inset 0 -1px 1px rgba(0,0,0,0.5);
}
.vs-seg-panel {
  background: #0a0806;
  border-radius: 3px;
  padding: 7px 10px;
  display: flex;
  justify-content: center;
}
.vs-seg-display { display: flex; gap: 3px; }
.vs-seg-digit-svg { display: block; flex: none; }

@media (max-width: 640px) {
  .vs-siggen-row { flex-direction: column; align-items: stretch; }
  .vs-seg-card { align-self: center; }
}