.dd-gap-exercise {
  --dd-primary: #0856c9;
  --dd-primary-dark: #063f93;
  --dd-primary-light: #dce9ff;
  --dd-accent: #4c89df;
  --dd-neutral: #f4f7ff;
  --dd-success: #189a5c;
  --dd-success-bg: #e7f8ef;
  --dd-error: #c62828;
  --dd-error-bg: #fdecec;

  border: 2px solid var(--dd-primary-light);
  border-radius: 14px;
  background: #fff;
  padding: 1.25rem;
  margin: 1.2rem 0;
}

.dd-gap-title {
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  font-size: 24px;
  color: #660000;
  margin: 0 0 1rem 0;
}

.dd-gap-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1rem;
  padding: 0.75rem;
  border: 1px dashed var(--dd-accent);
  border-radius: 10px;
  background: var(--dd-neutral);
  min-height: 56px;
}

.dd-gap-token {
  border: 1px solid var(--dd-primary);
  background: #fff;
  color: var(--dd-primary-dark);
  border-radius: 999px;
  font-weight: 600;
  font-size: 1em;
  padding: 0.35rem 0.85rem;
  cursor: grab;
  transition: background 0.15s, color 0.15s;
}

.dd-gap-token:hover {
  background: var(--dd-primary);
  color: #fff;
}

.dd-gap-token:active {
  cursor: grabbing;
}

.dd-gap-text {
  line-height: 1.8;
  font-weight: 300;
}

.dd-gap-slot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 110px;
  min-height: 38px;
  padding: 0.2rem;
  margin: 0 0.2rem;
  border-bottom: 3px solid var(--dd-primary);
  background: var(--dd-primary-light);
  border-radius: 6px 6px 0 0;
  vertical-align: middle;
  font-size: 1em;
}

.dd-gap-slot.has-token {
  background: #fff;
}

.dd-gap-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
}

.dd-gap-check.button {
  background: var(--dd-primary);
  border: none;
  color: #fff;
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.65rem 1.4rem;
  border-radius: 4px;
  cursor: pointer;
}

.dd-gap-check.button:hover,
.dd-gap-reset.button:hover {
  background: var(--dd-primary-dark);
  border-color: var(--dd-primary-dark);
}

.dd-gap-reset.button {
  background: var(--dd-primary);
  border: none;
  color: #fff;
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.65rem 1.4rem;
  border-radius: 4px;
  cursor: pointer;
}

.dd-gap-score {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--dd-primary-dark);
  background: var(--dd-primary-light);
  border-radius: 8px;
  padding: 0.45rem 0.8rem;
}

.dd-gap-slot.is-correct,
.dd-gap-token.is-correct {
  border-color: transparent;
  background: var(--dd-success-bg);
  color: var(--dd-success);
}

.dd-gap-slot.is-wrong,
.dd-gap-token.is-wrong {
  border-color: transparent;
  background: var(--dd-error-bg);
  color: var(--dd-error);
}