/* ==========================================================================
   sp12.css — вкладки архивных разделов «Базы веществ»:
   «Вещества из архива СП 12», «Коэффициент Z», «Примеры расчёта категорий».
   ========================================================================== */

.sp12tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
  border-bottom: 1px solid var(--line, #d8dde5);
}

.sp12tabs__btn {
  appearance: none;
  width: auto;
  min-height: 0;
  box-shadow: none;
  background: transparent;
  border: 1px solid transparent;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 0.92rem;
  padding: 9px 14px;
  border-radius: 8px 8px 0 0;
  cursor: pointer;
  white-space: nowrap;
}

.sp12tabs__btn:hover { background: rgba(127, 140, 160, 0.12); }

.sp12tabs__btn[aria-selected="true"] {
  border-bottom-color: var(--accent, #1f5fa9);
  font-weight: 600;
  color: var(--accent, #1f5fa9);
}

.sp12tabs__btn[aria-selected="true"]::after {
  content: "";
  display: block;
  height: 2px;
  background: var(--accent, #1f5fa9);
  margin: 0 -14px -9px;
}

.sp12panel[hidden] { display: none; }

.sp12__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

.sp12__field { display: flex; flex-direction: column; gap: 4px; min-width: 160px; }
.sp12__field--wide { flex: 1 1 280px; }
.sp12__label { font-size: 0.78rem; color: #5b6675; }

.sp12__in, .sp12__sel {
  font: inherit;
  font-size: 0.92rem;
  padding: 8px 10px;
  border: 1px solid #cfd6df;
  border-radius: 8px;
  background: #fff;
  color: inherit;
  min-width: 0;
}

.sp12__in:focus, .sp12__sel:focus { outline: 2px solid var(--accent, #1f5fa9); outline-offset: 1px; }

.sp12__export {
  appearance: none;
  font: inherit;
  font-size: 0.85rem;
  padding: 8px 12px;
  border: 1px solid #cfd6df;
  border-radius: 8px;
  background: #fff;
  color: var(--d-ink, #1b2430);
  cursor: pointer;
  white-space: nowrap;
}

.sp12__export:hover { background: #f3f6fa; }

.sp12__cat {
  display: inline-block;
  min-width: 2.2em;
  text-align: center;
  padding: 2px 6px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
  background: #eef1f5;
}

.sp12__cat--А { background: #f7d9d6; color: #8c2118; }
.sp12__cat--Б { background: #fadfc4; color: #8a4b0a; }
.sp12__cat--В { background: #fbeec2; color: #6f5a00; }
.sp12__cat--В1, .sp12__cat--В2, .sp12__cat--В3, .sp12__cat--В4 { background: #fdeec2; color: #6f5a00; }
.sp12__cat--Г { background: #dfe9f4; color: #24507f; }
.sp12__cat--Д { background: #ddeee1; color: #1f5b32; }
.sp12__cat--АН, .sp12__cat--БН, .sp12__cat--ВН, .sp12__cat--ДН { background: #e6ddf2; color: #4a2f77; }

/* Таблицы архивных разделов: 9–14 колонок, поэтому ширину задаём явно —
   иначе браузер сжимает колонки до одного символа по вертикали. */
.sp12__table { min-width: 1700px; table-layout: fixed; }
.sp12__table--wide { min-width: 1900px; }
.sp12__table col.c-name { width: 260px; }
.sp12__table col.c-num { width: 150px; }
.sp12__table col.c-mid { width: 170px; }
.sp12__table col.c-src { width: 260px; }
.sp12__table td, .sp12__table th { overflow-wrap: break-word; word-break: normal; }
.sp12__table thead th { white-space: normal; }
.sp12__table thead th.mdb__num { white-space: normal; }
.sp12__table .mdb__name { display: block; max-width: 260px; white-space: normal; }
.sp12__table .mdb__src { display: block; max-width: 220px; }
.sp12__table .mdb__num { white-space: nowrap; }

.sp12__detail {
  margin-top: 12px;
  padding: 12px 14px;
  border: 1px solid #dfe4eb;
  border-radius: 10px;
  background: #f8fafc;
  font-size: 0.9rem;
}

.sp12__detail dl { margin: 8px 0 0; display: grid; grid-template-columns: max-content 1fr; gap: 4px 14px; }
.sp12__detail dt { color: #5b6675; }
.sp12__detail dd { margin: 0; }

@media (max-width: 720px) {
  .sp12tabs {
    gap: 4px;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }
  .sp12tabs__btn { padding: 8px 10px; font-size: 0.85rem; }
  .sp12__field { min-width: 100%; }
  .sp12__export { width: 100%; }
  /* широкие таблицы результатов и примеров — с горизонтальной прокруткой внутри блока */
  .sp12__result, .sp12__ex, .sp12__detail, .sp12c__scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
  }
  .sp12__tbl { min-width: 340px; }
}

/* ==========================================================================
   Калькулятор категорий: форма, результат, разбор примеров.
   ========================================================================== */

.sp12c__h {
  margin: 22px 0 10px;
  font: 700 15px/1.35 var(--mono);
}
.sp12c__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 10px;
}
.sp12c__cell {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 10px 12px;
  border: 1px solid var(--line, #d8dde5);
  border-radius: 10px;
  background: var(--surface, #fff);
}
.sp12c__cell--check { flex-direction: row; align-items: center; gap: 10px; }
.sp12c__cell--check .sp12c__label { text-transform: none; font-weight: 500; font-size: 0.82rem; color: var(--text, #1b2430); }
.sp12c__label {
  font: 600 10.5px/1.3 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted, #5b6675);
}
.sp12c__hint { font-size: 0.75rem; color: var(--muted, #5b6675); }
.sp12c__scroll { overflow-x: auto; }
.sp12c__tbl { width: 100%; border-collapse: collapse; font: 500 13px/1.45 var(--mono); min-width: 780px; }
.sp12c__tbl th, .sp12c__tbl td { padding: 7px 8px; border-bottom: 1px solid var(--line, #d8dde5); text-align: left; vertical-align: top; }
.sp12c__tbl th { font-weight: 700; }
.sp12c__tbl input, .sp12c__tbl select { width: 100%; min-width: 84px; }
.sp12c__tbl tr.sp12__empty td { color: var(--muted, #5b6675); font-style: italic; }
.sp12c__btns { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 6px; }
.sp12c__btn {
  appearance: none;
  font: 600 13px/1.2 var(--mono);
  padding: 11px 16px;
  border-radius: 10px;
  border: 1.5px solid var(--accent-strong, #1f5fa9);
  background: var(--accent-strong, #1f5fa9);
  color: #fff;
  cursor: pointer;
}
.sp12c__btn--ghost { background: transparent; color: var(--accent-strong, #1f5fa9); }
.sp12c__btn--accent { background: #b4620b; border-color: #b4620b; }
.sp12c__btn:hover { opacity: 0.9; }
.sp12c__filelabel { position: relative; overflow: hidden; }
.sp12c__result { margin-top: 20px; }

.sp12__result h3 { font: 700 16px/1.35 var(--mono); margin: 0 0 10px; }
.sp12__result h4 { font: 700 13.5px/1.35 var(--mono); margin: 18px 0 6px; color: var(--accent-strong, #1f5fa9); }
.sp12__cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; margin: 10px 0 6px; }
.sp12__card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--line, #d8dde5);
  border-radius: 12px;
  background: var(--surface, #fff);
}
.sp12__card span { font: 600 10.5px/1.3 var(--mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted, #5b6675); }
.sp12__card b { font: 700 17px/1.2 var(--mono); color: var(--accent-strong, #1f5fa9); }
.sp12__card i { font-style: normal; font-size: 0.76rem; color: var(--muted, #5b6675); }
.sp12__why { margin: 6px 0 12px; padding-left: 20px; font-size: 0.88rem; line-height: 1.6; }
.sp12__tbl { width: 100%; border-collapse: collapse; font: 500 12.5px/1.5 var(--mono); }
.sp12__tbl td { padding: 6px 8px; border-bottom: 1px solid var(--line, #d8dde5); vertical-align: top; }
.sp12__tbl .sp12__k { font-weight: 700; }
.sp12__tbl .sp12__f { color: var(--accent-strong, #1f5fa9); }
.sp12__tbl .sp12__v { text-align: right; white-space: nowrap; }
.sp12__ex { border: 1px solid var(--line, #d8dde5); border-radius: 12px; padding: 14px 16px; margin-bottom: 12px; background: var(--surface, #fff); }
.sp12__ex h3 { font: 700 15px/1.35 var(--mono); margin: 0 0 6px; }
.sp12__src { font-size: 0.76rem; color: var(--muted, #5b6675); margin: 0 0 8px; }
.sp12__room { font-size: 0.86rem; margin: 0 0 8px; }
.sp12__calc { font: 600 12.5px/1.5 var(--mono); background: #f3f6fa; padding: 8px 10px; border-radius: 8px; margin: 8px 0; }
.sp12__res { font: 700 13px/1.55 var(--mono); margin: 6px 0; }
.sp12__note { font-size: 0.8rem; color: var(--muted, #5b6675); line-height: 1.6; }
.sp12__acts { margin: 10px 0 0; }
.sp12__del {
  font: 600 12px/1 var(--mono);
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--line, #d8dde5);
  background: transparent;
  color: var(--muted, #5b6675);
  cursor: pointer;
}
.sp12__del:hover { border-color: #c0392b; color: #c0392b; }

.sp12__count { margin: 12px 0 6px; font-size: 0.85rem; color: var(--muted, #5b6675); }
.sp12__pager { display: flex; align-items: center; gap: 12px; margin: 10px 0; }
.sp12__pagertext { font: 500 12.5px/1 var(--mono); color: var(--muted, #5b6675); }
.sp12__sources { margin-top: 16px; font-size: 0.8rem; color: var(--muted, #5b6675); }
.sp12__sources div { margin-bottom: 6px; }
.sp12__sources b { color: var(--text, #1b2430); margin-right: 6px; }