/* Раздел /rfc-2821 (#22718): хаб + статьи (статьи дополнительно на page-blog-oshibki-nedostavki.css). */

.sorfc-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.sorfc-cover {
  padding: 72px 0 48px;
  background: #22223b;
  color: #fff;
}

.sorfc-kicker {
  margin: 0 0 16px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #cc75ff;
}

.sorfc-cover__title {
  margin: 0 0 16px;
  font-family: "Unbounded", Arial, sans-serif;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.15;
  color: #fff;
}

.sorfc-cover__lead {
  margin: 0;
  max-width: 40rem;
  font-size: 1.125rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.88);
}

.sorfc-hub {
  padding: 40px 0 80px;
}

.sorfc-search {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 20px;
}

.sorfc-search__input {
  flex: 1 1 240px;
  min-height: 48px;
  padding: 12px 16px;
  border: 1px solid #d8d6e2;
  border-radius: 10px;
  font: inherit;
  font-size: 1rem;
  color: #22223b;
  background: #fff;
}

.sorfc-search__input:focus {
  outline: 2px solid #7c44f5;
  outline-offset: 1px;
}

.sorfc-search__btn {
  min-height: 48px;
  padding: 0 20px;
  border: 0;
  border-radius: 10px;
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: #7c44f5;
  cursor: pointer;
}

.sorfc-search__btn:hover {
  background: #6930e0;
}

.sorfc-filter {
  margin: 0 0 20px;
  font-size: 0.95rem;
  line-height: 1.5;
  color: #22223b;
}

.sorfc-filter__reset {
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  color: #7c44f5;
  text-decoration: underline;
  cursor: pointer;
}

.sorfc-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.sorfc-card {
  margin: 0;
  border: 1px solid #e6e3ef;
  border-radius: 12px;
  background: #fff;
}

.sorfc-card__link {
  display: block;
  padding: 18px 20px;
  text-decoration: none;
  color: inherit;
}

.sorfc-card__link:hover .sorfc-card__title {
  color: #7c44f5;
}

.sorfc-card__title {
  display: block;
  margin: 0 0 6px;
  font-family: "Unbounded", Arial, sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
  color: #060d58;
}

.sorfc-card__lead {
  display: block;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.5;
  color: #4a4a63;
}

.sorfc-article .sotb-cover__title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
}

.sorfc-article .sotb-text pre {
  overflow-x: auto;
  padding: 14px 16px;
  border-radius: 10px;
  background: #f4f2f8;
  font-size: 0.9rem;
  line-height: 1.45;
}

.sorfc-article .sotb-text code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

@media (max-width: 639px) {
  .sorfc-cover {
    padding: 56px 0 36px;
  }

  .sorfc-hub {
    padding: 28px 0 56px;
  }

  .sorfc-search__btn {
    width: 100%;
  }
}