/* Frequency Blindfold Test — tool-specific overrides only.
   Shared tokens/components live in design-system.css. SIGNAL GENERATOR (no mic). */

.fbt-warn-note {
  max-width: 820px; margin: var(--space-md) auto 0;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border); border-left: 4px solid var(--color-secondary);
  border-radius: var(--radius-sm); background: rgba(0, 255, 65, 0.04);
  color: var(--color-text-dim); font-size: 0.9rem; line-height: 1.55; text-align: left;
}
.fbt-warn-note strong { color: var(--color-text); }

/* control labels (shared convention; .input-label is not defined globally — local fallback) */
.input-label { display: block; font-size: var(--fs-sm); color: var(--color-text-muted); margin-bottom: var(--space-xs); font-family: var(--font-mono); }

/* setup row */
.fbt-setup { display: flex; flex-wrap: wrap; gap: var(--space-md); align-items: flex-end; }
.fbt-field { flex: 1 1 180px; min-width: 150px; }
.fbt-select {
  width: 100%; margin-top: 6px; padding: 10px 12px; background: var(--color-bg); color: var(--color-text);
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  font-family: var(--font-mono); font-size: 0.92rem;
}
.fbt-select:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(0, 255, 65, 0.18); }
.fbt-range { width: 100%; margin-top: 10px; accent-color: var(--color-primary); }
.fbt-volval { color: var(--color-secondary); font-family: var(--font-mono); }

.fbt-startrow { margin-top: var(--space-lg); text-align: center; }

/* A/B transport */
.fbt-transport {
  display: flex; flex-wrap: wrap; gap: var(--space-md); align-items: center; justify-content: center;
  margin-top: var(--space-lg); padding: var(--space-md);
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  background: rgba(0, 255, 65, 0.02); transition: border-color 0.2s ease, background 0.2s ease;
}
.fbt-transport--live { border-color: var(--color-primary); background: rgba(0, 255, 65, 0.06); }
.fbt-ab { display: inline-flex; gap: 0; border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; }
.fbt-seg {
  padding: 12px 22px; min-width: 130px; border: none; background: var(--color-bg); color: var(--color-text-dim);
  font-family: var(--font-mono); font-size: 0.95rem; cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}
.fbt-seg + .fbt-seg { border-left: 1px solid var(--color-border); }
.fbt-seg:hover:not(:disabled) { color: var(--color-text); }
.fbt-seg:disabled { opacity: 0.45; cursor: not-allowed; }
.fbt-seg--on { background: rgba(0, 255, 65, 0.14); color: var(--color-primary); }
.fbt-seg:focus-visible { outline: 2px solid var(--color-primary); outline-offset: -2px; }

/* prompt */
.fbt-prompt {
  margin-top: var(--space-lg); text-align: center;
  font-family: var(--font-display, 'Orbitron', sans-serif); font-size: 1.05rem;
  color: var(--color-text-bright); line-height: 1.4;
}

/* band choices */
.fbt-choices {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(74px, 1fr));
  gap: 8px; margin-top: var(--space-md);
}
.fbt-choice {
  padding: 12px 4px; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: var(--color-bg); color: var(--color-text);
  font-family: var(--font-mono); font-size: 0.9rem; cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.fbt-choice:hover:not(:disabled) { border-color: var(--color-primary); color: var(--color-primary); background: rgba(0, 255, 65, 0.06); }
.fbt-choice:disabled { cursor: default; }
.fbt-choice:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.fbt-choice--correct { border-color: var(--color-primary); color: var(--color-primary); background: rgba(0, 255, 65, 0.16); }
.fbt-choice--wrong { border-color: #ff4d4d; color: #ff8a8a; background: rgba(255, 77, 77, 0.12); }

.fbt-status { margin-top: var(--space-md); text-align: center; color: var(--color-text-dim); font-size: 0.9rem; min-height: 1.2em; }

/* reveal panel */
.fbt-reveal {
  margin-top: var(--space-md); padding: var(--space-md);
  border: 1px solid var(--color-border); border-left: 4px solid var(--color-secondary);
  border-radius: var(--radius-sm); background: rgba(0, 255, 65, 0.03);
}
.fbt-reveal:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.fbt-reveal--ok { border-left-color: var(--color-primary); background: rgba(0, 255, 65, 0.07); }
.fbt-reveal--no { border-left-color: #ff4d4d; background: rgba(255, 77, 77, 0.07); }
.fbt-reveal__head { font-family: var(--font-display, 'Orbitron', sans-serif); font-size: 1.1rem; color: var(--color-text-bright); margin-bottom: 6px; }
.fbt-reveal--ok .fbt-reveal__head { color: var(--color-primary); }
.fbt-reveal--no .fbt-reveal__head { color: #ff8a8a; }
.fbt-reveal__line { font-family: var(--font-mono); font-size: 0.92rem; color: var(--color-text); margin-bottom: 4px; }
.fbt-reveal__tip { margin-top: 6px; font-size: 0.82rem; color: var(--color-text-dim); line-height: 1.5; }

.fbt-nextrow { margin-top: var(--space-md); text-align: center; }

/* scoreboard */
.fbt-scoreboard {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--space-sm);
  margin-top: var(--space-lg); padding-top: var(--space-lg); border-top: 1px solid var(--color-border);
}
.fbt-stat {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: var(--space-sm); border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: rgba(0, 255, 65, 0.02);
}
.fbt-stat__val { font-family: var(--font-mono); font-size: 1.4rem; color: var(--color-primary); font-variant-numeric: tabular-nums; }
.fbt-stat__lbl { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-dim); }

.fbt-scoreactions { display: flex; gap: var(--space-sm); justify-content: center; flex-wrap: wrap; margin-top: var(--space-md); }
.fbt-savenote { margin-top: var(--space-md); text-align: center; font-size: 0.78rem; color: var(--color-text-muted); line-height: 1.5; }

.btn--small { padding: 6px 14px; font-size: 0.8rem; }

@media (max-width: 620px) {
  .fbt-scoreboard { grid-template-columns: repeat(3, 1fr); }
  .fbt-seg { min-width: 0; padding: 12px 14px; }
}

/* ---- related tools (shared pattern, copied verbatim across tool pages) ---- */
.related-tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  max-width: 900px;
  margin: 0 auto;
}
.related-tool-card {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s;
  text-align: left;
}
.related-tool-card:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.related-tool-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}
.related-tool-card__desc {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}
@media (max-width: 640px) {
  .related-tools-grid { grid-template-columns: 1fr; }
}