/* --- настройки --------------------------------------------- */
.settings-group {
  background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius);
  padding: var(--sp-1) var(--sp-4); margin-bottom: var(--sp-4); box-shadow: var(--shadow);
  animation: itemIn .35s var(--ease) backwards;
}
.settings-group h4 {
  font-size: 12px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink-faint); margin: var(--sp-3) 0 var(--sp-1);
  font-family: var(--font-display); font-weight: 700;
}
.setting-row {
  display: flex; align-items: center; gap: var(--sp-2) var(--sp-3); padding: var(--sp-3) 0;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 85%, transparent); flex-wrap: wrap;
}
.setting-row .lab { min-width: 180px; }
.setting-row:last-child { border-bottom: 0; }
.setting-row .lab { flex: 1; }
.setting-row .lab b { display: block; font-size: 15px; font-weight: 650; }
.setting-row .lab span { font-size: 13px; color: var(--ink-soft); }
.setting-row .lab .algo-desc { display: block; margin-top: var(--sp-1); line-height: 1.45; }
.setting-row .lab .algo-footnote { display: block; margin-top: var(--sp-2); font-size: 12px; line-height: 1.4; }
.setting-row select, .setting-row input[type="number"] {
  border: 1px solid var(--line); background: var(--bg-sunken); border-radius: var(--radius-sm);
  padding: 8px 10px; outline: none; max-width: 200px;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.setting-row select:focus-visible,
.setting-row input[type="number"]:focus-visible {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}
.setting-row input[type="number"] { width: 84px; text-align: center; }
.leitner-intervals-row { flex-wrap: wrap; }
.leitner-interval-input { width: 64px; text-align: center; }
.settings-footer { text-align: center; margin: var(--sp-6) 0 var(--sp-2); }
.tts-rate-wrap { display: flex; flex-direction: column; gap: var(--sp-2); min-width: 148px; max-width: 200px; flex: 1; }
.tts-rate-val { font-size: 13px; font-weight: 650; color: var(--ink-soft); text-align: right; }
input[type="range"].tts-rate { width: 100%; margin: 0; accent-color: var(--accent); cursor: pointer; }

/* --- кастомные чекбоксы ------------------------------------ */
.chk {
  appearance: none;
  -webkit-appearance: none;
  width: 28px;
  height: 28px;
  flex: none;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-sunken);
  cursor: pointer;
  box-shadow: none;
  transition:
    border-color var(--dur) var(--ease),
    background var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    transform .14s var(--ease);
  position: relative;
}
.chk:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
}
.chk:active:not(:disabled) { transform: scale(.94); }
.chk:checked {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: none;
}
.chk:checked::after {
  content: '';
  position: absolute;
  left: 9px;
  top: 4px;
  width: 7px;
  height: 13px;
  border: solid var(--btn-ink);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.chk:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}
.chk:disabled {
  opacity: .42;
  cursor: not-allowed;
  box-shadow: none;
}
.setting-row .chk { align-self: center; }
.chk-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  margin: -6px;
  flex: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.chk-wrap:has(.chk:disabled) { cursor: not-allowed; }
.bulk-option-row .chk { flex: none; }
.bulk-option-row .chk-wrap { padding: 4px; margin: -4px; }

.seg { display: inline-flex; background: var(--bg-sunken); border-radius: var(--radius-sm); padding: 3px; gap: 2px; flex-wrap: wrap; max-width: 100%; }
.seg button {
  border: 0; background: none; padding: 8px var(--sp-3); border-radius: 9px; cursor: pointer;
  font-weight: 600; font-size: 13px; color: var(--ink-soft);
  transition: background var(--dur) var(--ease), color var(--dur), box-shadow var(--dur);
  min-width: 0; min-height: 44px;
}
@media (max-width: 520px) {
  .setting-row { flex-direction: column; align-items: stretch; }
  .setting-row .lab { min-width: 0; }
  .setting-row .seg { display: flex; width: 100%; }
  .setting-row .seg button { flex: 1 1 0; padding: 8px 8px; font-size: 12.5px; }
  .setting-row select,
  .setting-row input[type="number"],
  .tts-rate-wrap { max-width: none; width: 100%; }
  .seg button { padding: 8px 10px; font-size: 12.5px; }
}
@media (max-width: 480px) {
  .seg button { padding: 8px 8px; font-size: 12px; }
}
.seg button:hover:not(.active) { color: var(--ink); }
.seg button.active {
  background: var(--bg-raised); color: var(--ink); box-shadow: var(--shadow);
}

/* --- Настройки → Карточки из YouTube (личные API-ключи) --- */
.setting-row-stack { flex-direction: column; align-items: stretch; }
.setting-row-stack .lab { min-width: 0; }
.integrations-compact { flex-wrap: nowrap; }
.integrations-compact .lab { flex: 1; min-width: 0; }
.integrations-status { display: block; margin-top: 4px; font-size: 12.5px; line-height: 1.4; }
.integrations-keys-modal { display: flex; flex-direction: column; gap: 16px; max-height: min(62vh, 520px); overflow-y: auto; padding: 4px 2px; }
.integrations-keys-modal .api-key-block { padding-bottom: 4px; border-bottom: 1px solid var(--line); }
.speech-voice-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  width: 100%;
}
.speech-voice-label { font-size: 13px; font-weight: 650; color: var(--ink-soft); flex: 0 0 auto; min-width: 88px; }
.speech-voice-select {
  flex: 1 1 240px;
  min-width: min(100%, 240px);
  max-width: 100%;
  width: 100%;
  font-size: 13px;
}
.setting-row .speech-voice-select { max-width: min(100%, 280px); }
.speech-preview-btn { flex: none; min-height: 44px; }
.speech-voice-hint { display: block; margin-top: 6px; font-size: 12px; line-height: 1.45; }
@media (min-width: 521px) {
  .speech-voice-select { flex: 1 1 240px; width: auto; }
  .setting-row .speech-voice-select { max-width: 280px; }
}
.api-key-block + .api-key-block { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 4px; }
.api-key-lead { display: block; margin-top: 4px; line-height: 1.45; }
.api-key-help {
  margin-top: 10px;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.45;
}
.api-key-help summary {
  cursor: pointer;
  font-weight: 650;
  color: var(--accent);
  user-select: none;
}
.api-key-help ol { margin: 8px 0 0 1.1em; padding: 0; }
.api-key-help li { margin-bottom: 6px; }
.api-key-help a { color: var(--accent); }
.api-key-note { margin: 10px 0 0; font-size: 12px; line-height: 1.4; }
.api-key-field {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  width: 100%;
}
.api-key-input {
  flex: 1 1 220px;
  min-width: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
}
.api-key-toggle { flex: none; min-height: 44px; }
.api-key-status {
  flex: 1 1 100%;
  font-size: 12px;
  font-weight: 650;
  color: var(--ink-faint);
}
.api-key-status.is-set { color: var(--ok); }
.api-key-status.is-invalid { color: var(--danger); }

/* Позиция календаря left/right/hide — только на широких экранах */
@media (max-width: 719px) {
  .settings-desktop-only { display: none !important; }
}