/* ================================================================
   speaking/sound-linking — local.css
   ================================================================ */

/* 音のつながりを示すブロック */
.sl-chain {
  background: rgba(70,162,218,.07);
  border-left: 3px solid var(--lb);
  border-radius: 0 8px 8px 0;
  padding: 1rem 1.3rem;
  margin: 1rem 0 1.3rem;
}
.sl-chain__row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .8rem;
  line-height: 1.5;
}
.sl-chain__form {
  font-family: 'Courier New', Courier, monospace;
  font-size: 1rem;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: .03em;
}
.sl-chain__arrow {
  color: var(--lb);
  font-size: 1.1rem;
  line-height: 1;
}
.sl-chain__sound {
  font-size: 1rem;
  font-weight: 700;
  color: var(--orange);
}
.sl-chain__note {
  margin: .6rem 0 0;
  font-size: .86rem;
  line-height: 1.75;
  color: var(--gray);
}

/* ステップカード */
.sl-step {
  display: flex;
  gap: 1.1rem;
  margin-bottom: 1.2rem;
  padding: 1.2rem 1.3rem;
  background: #fff;
  border: 1px solid rgba(4,63,109,.1);
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(4,63,109,.05);
}
.sl-step__num {
  flex-shrink: 0;
  width: 2.2rem;
  height: 2.2rem;
  background: var(--lb);
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Raleway', sans-serif;
  margin-top: .1rem;
}
.sl-step__body {
  flex: 1;
  min-width: 0;
}
.sl-step__title {
  font-weight: 700;
  color: var(--blue);
  margin-bottom: .5rem;
  font-size: .97rem;
  line-height: 1.4;
}
.sl-step__body > p {
  margin-bottom: .6rem;
}
.sl-step__body > p:last-child {
  margin-bottom: 0;
}

@media (max-width: 640px) {
  .sl-step {
    flex-direction: column;
    gap: .65rem;
  }
  .sl-chain__form,
  .sl-chain__sound {
    font-size: .92rem;
  }
}