:root {
  color-scheme: light;
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-2: #eef1f6;
  --text: #1b1f24;
  --muted: #4b5563;
  --border: #c5ccd6;
  --control-border: #7c8696; /* границы полей/кнопок-переключателей: >= 3:1 (WCAG 1.4.11) */
  --primary: #1d4ed8;
  --primary-text: #ffffff;
  --danger: #b91c1c;
  --danger-text: #ffffff;
  --success: #166534;
  --warn: #92400e;
  --focus: #1d4ed8;
  --progress-track: #dde3ec;
  --shadow: 0 2px 8px rgba(15, 23, 42, 0.12);
  --radius: 10px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Тёмная: по системе (если пользователь не выбрал светлую явно) или по выбору data-theme="dark".
   Набор переменных дублируется намеренно: сборки нет. Атрибут ставит js/theme-init.js до отрисовки. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1216;
    --surface: #1a1f26;
    --surface-2: #232a33;
    --text: #e8ebef;
    --muted: #b0b8c3;
    --border: #46505d;
    --control-border: #7b8794;
    --primary: #8ab4ff;
    --primary-text: #0b1220;
    --danger: #ff9b9b;
    --danger-text: #1a0b0b;
    --success: #7ee2a0;
    --warn: #fbbf77;
    --focus: #8ab4ff;
    --progress-track: #2d3642;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1216;
  --surface: #1a1f26;
  --surface-2: #232a33;
  --text: #e8ebef;
  --muted: #b0b8c3;
  --border: #46505d;
  --control-border: #7b8794;
  --primary: #8ab4ff;
  --primary-text: #0b1220;
  --danger: #ff9b9b;
  --danger-text: #1a0b0b;
  --success: #7ee2a0;
  --warn: #fbbf77;
  --focus: #8ab4ff;
  --progress-track: #2d3642;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}

*,*::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 var(--font);
}

[hidden] { display: none !important; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

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

.skip-link {
  position: absolute; left: 8px; top: -60px;
  background: var(--primary); color: var(--primary-text);
  padding: 8px 12px; border-radius: 6px; z-index: 100;
}
.skip-link:focus { top: 8px; }

/* Шапка */
.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px 0;
}
.app-header__row, .app-nav, main, .banner-wrap {
  max-width: 820px;
  margin-inline: auto;
}
.app-header__row {
  display: flex; flex-wrap: wrap; gap: 8px 16px;
  align-items: center; justify-content: space-between;
}
.app-title { margin: 0; font-size: 1.4rem; letter-spacing: 0.01em; }

.app-nav { display: flex; gap: 4px; margin-top: 8px; }
.app-nav a {
  padding: 10px 16px; text-decoration: none; color: var(--muted);
  border-bottom: 3px solid transparent; font-weight: 600;
}
.app-nav a:hover { color: var(--text); }
.app-nav a[aria-current="page"] { color: var(--text); border-bottom-color: var(--primary); }

main { padding: 16px; outline: none; }

/* Баннер ошибки */
.banner-wrap { padding: 12px 16px 0; }
.banner-wrap:empty { display: none; }
.banner {
  display: flex; gap: 12px; align-items: flex-start; justify-content: space-between;
  background: var(--surface); border: 2px solid var(--danger);
  border-radius: var(--radius); padding: 10px 14px;
}
.banner__text { margin: 0; font-weight: 600; }
.banner__actions { display: flex; gap: 8px; flex-shrink: 0; }

/* Кнопки */
.btn {
  font: inherit; font-weight: 600; cursor: pointer;
  min-height: 40px; padding: 8px 16px;
  border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text);
  text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
}
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn--primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.btn--primary:hover { background: var(--primary); filter: brightness(1.1); }
.btn--danger { background: var(--danger); color: var(--danger-text); border-color: var(--danger); }
.btn--danger:hover { background: var(--danger); filter: brightness(1.1); }
.btn--small { min-height: 36px; padding: 4px 12px; font-size: 0.9rem; }
.btn--ghost { background: transparent; }

/* Заголовки экранов */
.view-head { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.view-head h2 { margin: 0; font-size: 1.25rem; }

.state-msg { text-align: center; color: var(--muted); padding: 32px 8px; margin: 0; }
.state-msg strong { display: block; color: var(--text); font-size: 1.05rem; margin-bottom: 4px; }

/* Формы */
.panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; margin-bottom: 16px;
}
.panel > h3 { margin: 0 0 12px; font-size: 1.1rem; }

.form { display: grid; gap: 14px; }
.field { display: grid; gap: 4px; min-width: 0; }
.field label, .field legend, .field .label { font-weight: 600; }
.field .hint { color: var(--muted); font-size: 0.875rem; margin: 0; }
.field .error { color: var(--danger); font-weight: 600; font-size: 0.9rem; margin: 0; }
.field .error:empty { display: none; }
.field-row { display: grid; gap: 14px; grid-template-columns: 1fr; }

input[type="text"], input[type="password"], input[type="number"], input[type="date"], textarea, select {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--control-border); border-radius: 8px;
  padding: 8px 10px; min-height: 40px; width: 100%;
}
textarea { resize: vertical; min-height: 72px; }
input[aria-invalid="true"], textarea[aria-invalid="true"], select[aria-invalid="true"] { border: 2px solid var(--danger); }
input:disabled, select:disabled { opacity: 0.65; cursor: not-allowed; }
fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; margin: 0; min-width: 0; }
legend { padding: 0 6px; }
.form-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.form-error { color: var(--danger); font-weight: 600; margin: 0; }
.form-error:empty { display: none; }

/* Фильтры */
.filters { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; margin-bottom: 12px; }
.seg { display: inline-flex; border: 1px solid var(--control-border); border-radius: 8px; overflow: hidden; }
.seg button {
  font: inherit; font-weight: 600; background: var(--surface); color: var(--text);
  border: 0; border-right: 1px solid var(--control-border); padding: 8px 14px; min-height: 40px; cursor: pointer;
}
.seg button:last-child { border-right: 0; }
.seg button[aria-pressed="true"], .seg button[aria-checked="true"] { background: var(--primary); color: var(--primary-text); }
/* Выбранная кнопка залита цветом фокуса — кольцо фокуса берём цветом текста кнопки */
.seg button:focus-visible { outline-offset: -3px; }
.seg button[aria-pressed="true"]:focus-visible, .seg button[aria-checked="true"]:focus-visible { outline-color: var(--primary-text); }

/* Переключатель темы в шапке */
.header-tools { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; }
.theme-switch { display: flex; align-items: center; gap: 8px; }
.theme-switch__label { font-weight: 600; color: var(--muted); font-size: 0.9rem; }
.theme-switch .seg button { padding: 6px 10px; min-height: 36px; font-size: 0.9rem; }
.filters select { width: auto; max-width: 100%; }

/* Список задач */
.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.task {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 10px 12px;
  display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; align-items: start;
}
.task--done { background: var(--surface-2); }
.task__check { width: 24px; height: 24px; margin: 8px 0 0; accent-color: var(--primary); cursor: pointer; }
.task__body { min-width: 0; }
.task__title { margin: 0; font-weight: 600; overflow-wrap: anywhere; }
.task--done .task__title { text-decoration: line-through; color: var(--muted); }
.task__desc { margin: 2px 0 0; color: var(--muted); white-space: pre-wrap; overflow-wrap: anywhere; }
.task__meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; font-size: 0.875rem; color: var(--muted); }
.task__actions { grid-column: 2; display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.task__edit { grid-column: 1 / -1; }

.chip {
  display: inline-flex; align-items: center; gap: 4px;
  border: 1px solid var(--border); border-radius: 999px; padding: 0 10px;
  background: var(--surface-2); color: var(--text); font-size: 0.85rem;
}
.chip--overdue { border: 2px solid var(--danger); color: var(--danger); font-weight: 700; background: transparent; }
.chip--ok { color: var(--success); border-color: var(--success); background: transparent; }
.chip--invalid { color: var(--warn); border: 2px solid var(--warn); font-weight: 700; background: transparent; }

/* Витрина вознаграждений */
.cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; grid-template-columns: 1fr; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; display: grid; gap: 8px; align-content: start;
}
.card--locked { background: var(--surface-2); border-style: dashed; }
.card--locked .card__icon { filter: grayscale(1); opacity: 0.6; }
.card--unlocked { border: 2px solid var(--success); }
.card__head { display: flex; gap: 12px; align-items: center; }
.card__icon { font-size: 2.2rem; line-height: 1; }
.card__title { margin: 0; font-size: 1.05rem; overflow-wrap: anywhere; }
.card__desc { margin: 0; color: var(--muted); overflow-wrap: anywhere; white-space: pre-wrap; }
.card__cond { margin: 0; font-size: 0.95rem; overflow-wrap: anywhere; }
.card__status { margin: 0; font-weight: 600; font-size: 0.9rem; }
.card__status--ok { color: var(--success); }
.card__status--locked { color: var(--muted); }
.card__actions { display: flex; gap: 8px; flex-wrap: wrap; }

.progress-wrap { display: grid; gap: 2px; }
/* Явная раскраска: цвет и дорожка из переменных темы (контраст значения к дорожке >= 3:1 в обеих темах) */
progress {
  width: 100%; height: 12px; accent-color: var(--primary);
  appearance: none; -webkit-appearance: none;
  border: 1px solid var(--control-border); border-radius: 6px;
  background: var(--progress-track); color: var(--primary); overflow: hidden;
}
progress::-webkit-progress-bar { background: var(--progress-track); }
progress::-webkit-progress-value { background: var(--primary); }
progress::-moz-progress-bar { background: var(--primary); }
.progress-text { font-size: 0.875rem; color: var(--muted); font-variant-numeric: tabular-nums; }

/* Форма вознаграждения */
.emoji-grid { display: flex; flex-wrap: wrap; gap: 6px; }
.emoji-grid button {
  font-size: 1.4rem; width: 44px; height: 44px; border-radius: 8px; cursor: pointer;
  background: var(--bg); border: 1px solid var(--border);
}
.emoji-grid button[aria-pressed="true"] { border: 3px solid var(--primary); }
.type-options { display: grid; gap: 6px; }
.type-options label { font-weight: 400; display: flex; gap: 8px; align-items: flex-start; }
.type-options input { margin-top: 5px; }
.check-list { max-height: 220px; overflow: auto; display: grid; gap: 4px; }
.check-list label { font-weight: 400; display: flex; gap: 8px; align-items: flex-start; padding: 4px 0; overflow-wrap: anywhere; }
.check-list input { margin-top: 5px; width: 18px; height: 18px; flex-shrink: 0; }
.preview {
  background: var(--surface-2); border-left: 4px solid var(--primary);
  border-radius: 6px; padding: 8px 12px; margin: 0; overflow-wrap: anywhere;
}
.preview__label { display: block; color: var(--muted); font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }

/* Тосты */
.toasts {
  position: fixed; left: 0; right: 0; bottom: 16px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 0 12px; pointer-events: none; z-index: 50;
}
.toast {
  pointer-events: auto; width: min(420px, 100%);
  background: var(--surface); color: var(--text);
  border: 2px solid var(--success); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 10px 12px;
  display: flex; gap: 12px; align-items: center;
  animation: toast-in 0.2s ease-out;
}
.toast--info { border-color: var(--primary); }
.toast__icon { font-size: 2rem; line-height: 1; }
.toast__body { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.toast__kicker { display: block; font-size: 0.8rem; font-weight: 700; color: var(--success); text-transform: uppercase; letter-spacing: 0.04em; }
.toast--info .toast__kicker { color: var(--primary); }
.toast__title { font-weight: 700; }
.toast__text { margin: 0; color: var(--muted); font-size: 0.9rem; }

@keyframes toast-in { from { transform: translateY(12px); opacity: 0; } to { transform: none; opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .toast { animation: none; } }

/* Диалог */
.dialog {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); color: var(--text);
  padding: 20px; width: min(440px, calc(100% - 24px)); box-shadow: var(--shadow);
}
.dialog::backdrop { background: rgba(0, 0, 0, 0.55); }
.dialog h2 { margin: 0 0 8px; font-size: 1.15rem; }
.dialog p { margin: 0 0 8px; overflow-wrap: anywhere; }
.dialog ul { margin: 0 0 12px; padding-left: 20px; overflow-wrap: anywhere; }
.dialog .form-actions { justify-content: flex-end; margin-top: 16px; }

/* Шапка: пользователь */
.user-bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.user-bar__name { font-weight: 700; color: var(--text); overflow-wrap: anywhere; }
a.user-bar__name { text-decoration: underline; }

/* Вход, профиль, пояснения */
.panel--narrow { max-width: 420px; margin-inline: auto; }
.panel--narrow > h2 { margin: 0 0 8px; font-size: 1.25rem; }
.hint { color: var(--muted); font-size: 0.9rem; margin: 0 0 8px; }
.form .hint { margin: 0; }
.notice {
  background: var(--surface-2); border-left: 4px solid var(--primary);
  border-radius: 6px; padding: 8px 12px; margin: 0 0 12px; overflow-wrap: anywhere;
}
.notice--warn { border-left-color: var(--warn); }
.info-list { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; margin: 0; }
.info-list dt { color: var(--muted); }
.info-list dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }

/* Временный пароль */
.secret {
  display: block; font: 700 1.6rem/1.3 ui-monospace, "Cascadia Mono", Consolas, monospace;
  letter-spacing: 0.08em; text-align: center; user-select: all; overflow-wrap: anywhere;
  background: var(--bg); border: 2px dashed var(--control-border); border-radius: 8px;
  padding: 14px 8px; margin: 8px 0 12px;
}

/* Фильтры задач */
.filters-panel { padding: 12px; }
.filters-panel .filters { margin-bottom: 0; align-items: flex-end; }
.filter-item { display: grid; gap: 2px; font-size: 0.85rem; font-weight: 600; color: var(--muted); min-width: 0; }
.filter-item select, .filter-item input { width: auto; max-width: 100%; min-width: 130px; color: var(--text); font-weight: 400; }
.filter-range { display: flex; flex-wrap: wrap; gap: 8px 12px; }
.filters-panel .form-error { margin-top: 8px; }
.task__note { margin: 4px 0 0; color: var(--muted); font-size: 0.85rem; overflow-wrap: anywhere; }
.task__check:disabled { cursor: not-allowed; opacity: 0.55; }
.more-wrap { display: flex; justify-content: center; margin-top: 12px; }
.more-wrap:empty { display: none; }
.cards--wide { grid-template-columns: 1fr; }

/* Ошибки фильтров у своего поля */
.filter-error { color: var(--danger); font-weight: 600; font-size: 0.85rem; }
.filter-error:empty { display: none; }

/* Повторяющиеся задачи: поля правила, дни недели, пометки */
.chip--repeat { border-color: var(--primary); }
.rule-fields { gap: 14px; }
.rule-detail { gap: 14px; }
.rule-sub { margin-left: 26px; }
.weekdays { display: flex; flex-wrap: wrap; gap: 6px; }
.field .weekday {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  min-width: 44px; min-height: 44px; font-weight: 600; cursor: pointer;
  border: 1px solid var(--control-border); border-radius: 8px; background: var(--surface); color: var(--text);
}
.weekday input { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: pointer; }
.weekday:has(input:checked) { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.weekday:has(input:focus-visible) { outline: 3px solid var(--focus); outline-offset: 2px; }
.notice a { color: inherit; font-weight: 600; }

@media (min-width: 560px) {
  .field-row { grid-template-columns: 1fr 1fr; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .cards--wide { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
  main { padding: 12px; }
  .secret { font-size: 1.25rem; }
  .app-nav { overflow-x: auto; }
  .app-nav a { padding: 10px 12px; white-space: nowrap; }
  .filter-item select, .filter-item input { min-width: 0; width: 100%; }
  .filters-panel .filters > .filter-item, .filter-range { width: 100%; }
  .seg { flex-wrap: wrap; }
  .banner { flex-direction: column; }
  .seg button { padding: 8px 10px; }
}

/* Пункты списка внутри задачи */
.task-items { margin-top: 8px; display: grid; gap: 6px; min-width: 0; }
.task-items__count { margin: 0; font-size: 0.9rem; color: var(--muted); }
.task-items__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.task-item { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; min-width: 0; border-radius: 8px; }
.task-item__label {
  display: flex; align-items: flex-start; gap: 10px; flex: 1 1 14rem; min-width: 0;
  min-height: 44px; padding: 8px 4px; cursor: pointer; /* крупная область нажатия для телефона */
}
.task-item__check { flex: none; width: 24px; height: 24px; margin: 0; accent-color: var(--primary); cursor: pointer; }
.task-item__check:disabled { cursor: not-allowed; opacity: 0.55; }
.task-item__check:disabled ~ .task-item__text { cursor: default; }
.task-item__check:focus-visible, .item-add__input:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.task-item__text { min-width: 0; overflow-wrap: anywhere; word-break: break-word; white-space: pre-wrap; }
.task-item--done .task-item__text { text-decoration: line-through; color: var(--muted); }
.task-item__by { font-size: 0.8rem; color: var(--muted); }
.task-item__actions { display: flex; gap: 6px; flex-wrap: wrap; }
.task-item__editbox { flex: 1 1 100%; display: grid; gap: 4px; }
.task-items__hint {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  border: 1px solid var(--success); color: var(--text); border-radius: 8px; padding: 6px 10px;
}
.item-add { display: grid; gap: 4px; }
.item-add__row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.item-add__input { flex: 1 1 12rem; min-width: 0; min-height: 44px; }
.item-add__error:empty { display: none; }
.items-editor { border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 12px; display: grid; gap: 6px; min-width: 0; margin: 0; }
.items-editor[hidden], .items-editor ul[hidden] { display: none; }
.items-editor .task-item { padding: 2px 0; }
@media (max-width: 420px) {
  .task-item__actions .btn { min-height: 40px; }
}.task-items .error, .items-editor .error { color: var(--danger); font-weight: 600; font-size: 0.9rem; margin: 0; }
.task-items .error:empty, .items-editor .error:empty { display: none; }
.items-editor legend { font-weight: 600; }