/* dB Level Trainer — tool-specific overrides only (output-only audio game). */

/* honest caveat note in the hero */
.dbt-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-muted); font-size: 0.9rem; line-height: 1.55; text-align: left;
}
.dbt-warn-note strong { color: var(--color-text); }
.dbt-warn-note sup { font-size: 0.7em; }

/* ---- controls ---- */
.dbt-controls {
  display: flex; flex-wrap: wrap; gap: var(--space-md); align-items: flex-end;
  margin-bottom: var(--space-lg);
}
.dbt-field { flex: 1 1 200px; min-width: 160px; }
.dbt-field--vol { display: flex; flex-direction: column; }
.dbt-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: 0.95rem;
}
.dbt-select:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(0, 255, 65, 0.18); }
.dbt-range { width: 100%; margin-top: 10px; accent-color: var(--color-primary); }
.dbt-volval { margin-top: 4px; font-family: var(--font-mono); font-size: 0.85rem; color: var(--color-primary); }

/* ---- scoreboard ---- */
.dbt-scoreboard {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}
@media (max-width: 560px) { .dbt-scoreboard { grid-template-columns: repeat(2, 1fr); } }
.dbt-score {
  padding: 10px 12px; text-align: center;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: rgba(0, 255, 65, 0.02);
}
.dbt-score__label { display: block; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-muted); }
.dbt-score__val { display: block; margin-top: 4px; font-family: var(--font-display, var(--font-mono)); font-size: 1.25rem; color: var(--color-primary); }

/* ---- stage ---- */
.dbt-stage {
  padding: var(--space-lg); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); background: #060a08;
}

.dbt-bursts {
  display: flex; align-items: stretch; justify-content: center; gap: var(--space-md);
  flex-wrap: wrap;
}
.dbt-vs { align-self: center; font-family: var(--font-mono); color: var(--color-text-muted); font-size: 0.9rem; }
.dbt-burst {
  flex: 1 1 180px; max-width: 240px; min-height: 96px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  padding: var(--space-md); cursor: pointer;
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  background: var(--color-surface); color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.dbt-burst:hover:not(:disabled) { border-color: var(--color-primary); box-shadow: var(--glow-sm); transform: translateY(-2px); }
.dbt-burst:focus-visible { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(0, 255, 65, 0.25); }
.dbt-burst:disabled { opacity: 0.45; cursor: not-allowed; }
.dbt-burst__tag { font-family: var(--font-display, var(--font-mono)); font-size: 1rem; color: var(--color-primary); }
.dbt-burst__icon { font-size: 1.4rem; color: var(--color-secondary); }
.dbt-burst__hint { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-muted); }

.dbt-actions {
  display: flex; flex-wrap: wrap; gap: var(--space-sm); justify-content: center;
  margin-top: var(--space-lg);
}
.dbt-status {
  margin-top: var(--space-md); text-align: center;
  color: var(--color-text-muted); font-size: 0.9rem; line-height: 1.5;
}

/* ---- question / choices ---- */
.dbt-question { margin-top: var(--space-lg); }
.dbt-question__prompt { text-align: center; color: var(--color-text); margin-bottom: var(--space-sm); }
.dbt-choices {
  display: flex; flex-wrap: wrap; gap: var(--space-sm); justify-content: center;
}
.dbt-choice {
  min-width: 84px; padding: 12px 18px; cursor: pointer;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: var(--color-surface); color: var(--color-text);
  font-family: var(--font-mono); font-size: 1.05rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.dbt-choice:hover:not(:disabled) { border-color: var(--color-primary); box-shadow: var(--glow-sm); transform: translateY(-2px); }
.dbt-choice:focus-visible { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(0, 255, 65, 0.25); }
.dbt-choice:disabled { cursor: default; }
.dbt-choice--correct { border-color: var(--color-primary); background: rgba(0, 255, 65, 0.14); color: var(--color-primary); }
.dbt-choice--wrong { border-color: var(--color-error, #ff1744); background: rgba(255, 23, 68, 0.14); color: #ff8aa0; }

/* ---- feedback ---- */
.dbt-feedback {
  margin-top: var(--space-lg); padding: var(--space-md);
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: rgba(0, 255, 65, 0.03); text-align: center;
}
.dbt-feedback__verdict { font-family: var(--font-display, var(--font-mono)); font-size: 1.4rem; }
.dbt-feedback__verdict--right { color: var(--color-primary); }
.dbt-feedback__verdict--wrong { color: #ffb43c; }
.dbt-feedback__detail { margin-top: 6px; color: var(--color-text); font-family: var(--font-mono); font-size: 0.95rem; }
.dbt-feedback__ref { margin-top: 8px; color: var(--color-text-muted); font-size: 0.88rem; line-height: 1.5; }

/* ---- toolbar ---- */
.dbt-toolbar {
  display: flex; flex-wrap: wrap; gap: var(--space-md); align-items: center; justify-content: space-between;
  margin-top: var(--space-lg);
}
.dbt-saved { font-family: var(--font-mono); font-size: 0.8rem; color: var(--color-text-muted); }

/* ---- reference list ---- */
.dbt-reftable { margin-top: var(--space-lg); }
.dbt-h3 { font-size: 1rem; margin-bottom: var(--space-xs); }
.dbt-reflist { margin: 0; padding-left: 1.2rem; color: var(--color-text-muted); font-size: 0.9rem; line-height: 1.7; }
.dbt-reflist strong { color: var(--color-primary); }

/* ---- related tools ---- */
.dbt-related-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md);
  text-align: left;
}
@media (max-width: 760px) { .dbt-related-grid { grid-template-columns: 1fr; } }
.dbt-related-card {
  display: block; padding: var(--space-md);
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  background: var(--color-surface); text-decoration: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.dbt-related-card:hover { border-color: var(--color-primary); box-shadow: var(--glow-sm); transform: translateY(-3px); }
.dbt-related-card__title { font-family: var(--font-display, var(--font-mono)); color: var(--color-primary); font-size: 0.98rem; margin-bottom: 4px; }
.dbt-related-card__desc { color: var(--color-text-muted); font-size: 0.85rem; line-height: 1.5; }