.lesson-host {
  margin-bottom: 26px;
}
.lesson-card {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 28px;
  background: #fff;
  border: 1px solid #dce5e3;
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 8px 30px #344b4a05;
}
.lesson-badge {
  display: inline-block;
  color: #906174;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  background: #f8edf2;
  padding: 6px 9px;
  border-radius: 6px;
}
.lesson-copy h2 {
  font-size: 24px;
  margin: 15px 0 10px;
  line-height: 1.35;
}
.lesson-copy > p {
  font-size: 14px;
  color: #627476;
  margin: 0 0 18px;
  max-width: 550px;
}
.lesson-steps {
  padding: 0;
  margin: 0;
  list-style: none;
  display: grid;
  gap: 13px;
}
.lesson-steps li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.lesson-steps li > span {
  flex: none;
  background: #eaf3ef;
  color: #406d5a;
  font-size: 11px;
  font-weight: 600;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lesson-steps p {
  font-size: 13px;
  line-height: 1.7;
  margin: 2px 0 0;
  color: #435d60;
}
.lesson-example {
  background: #f5f8f7;
  border-radius: 14px;
  padding: 22px;
  align-self: start;
}
.demo-badge {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #617d71;
  display: block;
  margin-bottom: 12px;
}
.lesson-example dl {
  margin: 0;
}
.lesson-example dl > div {
  padding: 11px 0;
  border-bottom: 1px solid #e2eae7;
}
.lesson-example dt {
  font-size: 11px;
  color: #748781;
  margin-bottom: 4px;
}
.lesson-example dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: #314f46;
}
.lesson-note {
  font-size: 11px;
  line-height: 1.7;
  color: #6e827a;
  margin: 14px 0 0;
}
.lesson-bottom {
  grid-column: 1/-1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  border-top: 1px solid #edf0ef;
  padding-top: 20px;
}
.lesson-bottom p {
  font-size: 11px;
  color: #7b8987;
  margin: 0;
  max-width: 400px;
}
.lesson-bottom button {
  flex: none;
}
.lesson-reopen {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid #e2e8e6;
  padding: 12px 16px;
  border-radius: 10px;
  background: #fff;
}
.lesson-reopen > span {
  font-size: 11px;
  color: #6e827a;
}
.lesson-reopen button {
  font-size: 12px;
  font-weight: 600;
  color: #9b5e74;
  min-height: 32px;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.workspace-label {
  font-size: 18px;
  margin: 26px 0 16px;
}
.form-instructions {
  background: #edf5f1;
  color: #47675a;
  padding: 15px 18px;
  font-size: 13px;
  line-height: 1.8;
  border-radius: 10px;
  margin: 0 0 25px;
}
.lesson-card button:focus-visible,
.lesson-reopen button:focus-visible {
  outline: 2px solid #965569;
  outline-offset: 4px;
}
.lesson-host:empty {
  display: none;
}
#editor > .intro {
  margin-bottom: 20px;
}
@media (max-width: 1000px) {
  .lesson-card {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 24px;
  }
  .lesson-example {
    padding: 18px;
  }
  .lesson-example dl {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
  .lesson-example dl > div {
    border: 0;
    padding: 5px 0;
  }
  .lesson-example dd {
    font-size: 13px;
  }
  .lesson-bottom {
    align-items: flex-start;
  }
  .lesson-bottom button {
    max-width: 270px;
    text-align: center;
  }
}
@media (max-width: 600px) {
  .lesson-card {
    padding: 20px;
    gap: 20px;
    border-radius: 15px;
  }
  .lesson-copy h2 {
    font-size: 21px;
  }
  .lesson-copy > p {
    font-size: 13px;
  }
  .lesson-steps p {
    font-size: 12px;
  }
  .lesson-example dl {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .lesson-example dl > div {
    display: flex;
    gap: 14px;
    justify-content: space-between;
    padding: 9px 0;
    border-bottom: 1px solid #e0e8e4;
  }
  .lesson-example dt {
    font-size: 10px;
    flex: 0 0 40%;
  }
  .lesson-example dd {
    font-size: 12px;
    text-align: right;
  }
  .lesson-bottom {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding-top: 18px;
  }
  .lesson-bottom button {
    width: 100%;
    max-width: none;
    font-size: 13px;
    min-height: 48px;
  }
  .lesson-bottom p {
    font-size: 10px;
  }
  .lesson-reopen {
    padding: 10px 13px;
    gap: 10px;
  }
  .lesson-reopen > span {
    font-size: 10px;
  }
  .lesson-reopen button {
    font-size: 11px;
    flex: none;
  }
  .lesson-host {
    margin-bottom: 22px;
  }
  .workspace-label {
    font-size: 17px;
  }
}

.optional-fields {
  padding: 0 18px;
  background: #f7f9f8;
  margin-top: 20px;
  border-radius: 10px;
}
.optional-fields summary {
  font:
    500 12px Manrope,
    sans-serif;
  padding: 15px 0;
  letter-spacing: 0;
}
.optional-fields label {
  margin-top: 12px;
}
.optional-fields[open] {
  padding-bottom: 6px;
}