/* ============================================================
   Музыка к новости — «Тактический минимум»
   Панель «Включить фоном» на /news/:id и выбор треков (пикер) в
   редакторе новости и в блоке правки на странице материала.
   Базис и общие классы (.t-*, токены --t-*) — в styleTactical.css.
   Контракты public/js/newsSoundtrack.js: #news-soundtrack[data-tracks],
   .news-soundtrack-play.is-playing, [data-st-picker], [data-st-picker-count].
   ============================================================ */

/* ── Панель на странице материала ── */

.news-soundtrack {
  margin: 0 0 24px;
  padding: 18px 22px;
  color: var(--t-text);
  font-family: var(--t-font-body);
  border-left: 2px solid var(--t-red);
}

.news-soundtrack-main {
  display: flex;
  align-items: center;
  gap: 18px;
}

.news-soundtrack-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--t-panel-border);
  color: var(--t-red-bright);
}

.news-soundtrack-text {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.news-soundtrack-lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: #c9ced8;
}

.news-soundtrack-track {
  white-space: nowrap;
  color: var(--t-text);
}

.news-soundtrack-track .t-brand {
  font-size: 13px;
}

.news-soundtrack-actions {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.news-soundtrack-play {
  padding: 12px 22px;
  font-size: 13px;
}

.news-soundtrack-play .st-ico--pause { display: none; }
.news-soundtrack-play.is-playing .st-ico--play { display: none; }
.news-soundtrack-play.is-playing .st-ico--pause { display: block; }

.news-soundtrack-all {
  font-family: var(--t-font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--t-text-muted);
  text-decoration: none;
  transition: color 0.18s ease;
}

.news-soundtrack-all:hover {
  color: var(--t-red-bright);
}

/* Нет треков — панель видна только редактору, без акцентной кромки */
.news-soundtrack--empty {
  border-left-color: var(--t-panel-border);
}

.news-soundtrack--empty .news-soundtrack-icon {
  color: var(--t-text-faint);
}

/* ── Блок правки для редактора ── */

.news-soundtrack-edit {
  margin-top: 16px;
  border-top: 1px solid var(--t-line);
}

.news-soundtrack-edit-head {
  padding: 12px 0 0;
  cursor: pointer;
  list-style: none;
  color: var(--t-text-muted);
  transition: color 0.18s ease;
}

.news-soundtrack-edit-head::-webkit-details-marker { display: none; }

.news-soundtrack-edit-head::before {
  content: '+';
  display: inline-block;
  width: 14px;
  color: var(--t-red-bright);
}

.news-soundtrack-edit[open] .news-soundtrack-edit-head::before {
  content: '–';
}

.news-soundtrack-edit-head:hover {
  color: var(--t-red-bright);
}

.news-soundtrack-edit-body {
  padding-top: 14px;
}

.news-soundtrack-edit-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 14px;
}

.news-soundtrack-edit-actions .t-btn {
  padding: 10px 20px;
  font-size: 11px;
}

/* ── Поле в редакторе новости ── */

.news-soundtrack-field {
  margin-bottom: 22px;
}

.news-soundtrack-field-hint {
  margin: -4px 0 12px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--t-text-faint);
}

/* ── Пикер треков ── */

.st-picker {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--t-font-body);
}

.st-picker-empty {
  margin: 0;
  font-size: 14px;
  color: var(--t-text-faint);
}

.st-picker-album {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(12, 14, 16, 0.6);
}

.st-picker-album-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  list-style: none;
}

.st-picker-album-head::-webkit-details-marker { display: none; }

.st-picker-album-title {
  font-family: var(--t-font-display);
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #ffffff;
}

.st-picker-tracks {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--t-line);
}

/* Селектор с двойным классом: в редакторе новости правило
   `.new-article-container label` иначе перебивает подпись трека */
.st-picker .st-picker-track {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  margin: 0;
  cursor: pointer;
  font-family: var(--t-font-body);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--t-text);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.18s ease;
}

.st-picker-track:nth-child(-n + 2) {
  border-top: none;
}

.st-picker-track:hover {
  background: rgba(255, 255, 255, 0.025);
}

.st-picker-track input[type='checkbox'] {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  clip-path: inset(50%);
}

/* Плоский квадратный чекбокс по гайду: включён — заливка красным */
.st-picker .st-picker-track-box {
  flex-shrink: 0;
  display: inline-block;
  width: 14px;
  height: 14px;
  box-sizing: border-box;
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: background 0.18s ease, border-color 0.18s ease;
}

.st-picker-track input:checked + .st-picker-track-box {
  background: var(--t-red);
  border-color: var(--t-red);
}

.st-picker-track input:focus-visible + .st-picker-track-box {
  outline: 1px solid var(--t-red-bright);
  outline-offset: 2px;
}

.st-picker-track-num {
  min-width: 20px;
  letter-spacing: 1px;
}

.st-picker-track-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Адаптив ── */

@media (max-width: 640px) {
  .news-soundtrack {
    padding: 16px;
  }

  .news-soundtrack-main {
    flex-wrap: wrap;
  }

  .news-soundtrack-icon {
    display: none;
  }

  .news-soundtrack-actions {
    width: 100%;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .news-soundtrack-track {
    white-space: normal;
  }

  .st-picker-tracks {
    grid-template-columns: minmax(0, 1fr);
  }

  .st-picker-track:nth-child(2) {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }
}