/* Монохромная тема: тёмная — чёрный фон и белые акценты, светлая — наоборот. */
:root {
  --bg: #000000;
  --card: #0d0d0d;
  --card-2: #141414;
  --border: #222222;
  --border-strong: #3a3a3a;
  --text: #ffffff;
  --muted: #8c8c8c;
  --accent: #ffffff;
  --accent-text: #000000;
  --danger: #ff5c5c;
  --radius: 18px;
  --tabbar: 72px;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #ffffff;
  --card: #f6f6f6;
  --card-2: #efefef;
  --border: #e4e4e4;
  --border-strong: #c9c9c9;
  --text: #000000;
  --muted: #6e6e6e;
  --accent: #000000;
  --accent-text: #ffffff;
  --danger: #d92b2b;
  color-scheme: light;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); }
body {
  font: 16px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
button, input { font: inherit; color: inherit; }
svg { width: 20px; height: 20px; flex: none; }
button { cursor: pointer; }

.page { padding: 28px 20px calc(var(--tabbar) + 32px + env(safe-area-inset-bottom)); max-width: 560px; margin: 0 auto; }
.page h1 { font-size: 32px; line-height: 1.15; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
.subtitle { color: var(--muted); margin: 0 0 24px; font-size: 16px; }
.section-title { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--muted); margin: 28px 0 12px; }

/* карточки */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card + .card { margin-top: 12px; }
.card h3 { margin: 0 0 6px; font-size: 18px; font-weight: 700; }
.card p { margin: 0; color: var(--muted); }
.card .actions { margin-top: 16px; display: flex; gap: 10px; flex-wrap: wrap; }

.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.stat .icon { width: 44px; height: 44px; border-radius: 12px; background: var(--card-2); display: grid;
  place-items: center; margin-bottom: 18px; }
.stat .icon svg { width: 22px; height: 22px; }
.stat .value { font-size: 34px; font-weight: 800; line-height: 1; letter-spacing: -0.02em; }
.stat .label { color: var(--muted); margin-top: 8px; }

/* кнопки и поля */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0;
  border-radius: 14px; padding: 13px 20px; font-weight: 600; white-space: nowrap; transition: opacity .15s; }
.btn:active { opacity: .7; }
.btn[disabled] { opacity: .45; pointer-events: none; }
.btn-primary { background: var(--accent); color: var(--accent-text); }
.btn-secondary { background: var(--card-2); color: var(--text); border: 1px solid var(--border); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border-strong); }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid var(--border-strong); }
.btn-block { width: 100%; }
.btn svg { width: 18px; height: 18px; }

.add-row { display: flex; gap: 10px; }
.input { flex: 1; min-width: 0; background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 13px 16px; outline: none; }
.input::placeholder { color: var(--muted); }
.input:focus { border-color: var(--border-strong); }

.link-btn { background: none; border: 0; padding: 12px 0 0; color: var(--muted); font-size: 14px;
  display: inline-flex; align-items: center; gap: 6px; text-align: left; }
.link-btn b { color: var(--text); font-weight: 600; }
.link-btn svg { width: 16px; height: 16px; }

.empty { margin-top: 20px; border: 1.5px dashed var(--border-strong); border-radius: var(--radius);
  padding: 40px 24px; text-align: center; color: var(--muted); }

/* список каналов */
.list { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.item { display: flex; align-items: center; gap: 14px; width: 100%; text-align: left; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.item .avatar { width: 44px; height: 44px; flex: none; border-radius: 50%; background: var(--card-2);
  border: 1px solid var(--border); display: grid; place-items: center; font-weight: 700; }
.item .body { flex: 1; min-width: 0; }
.item .name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item .meta { color: var(--muted); font-size: 14px; margin-top: 2px; white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis; }
.item .chev { color: var(--muted); flex: none; }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; border: 1.5px solid var(--muted);
  margin-right: 6px; vertical-align: 0; }
.dot.on { background: var(--text); border-color: var(--text); }
.dot.warn { background: var(--danger); border-color: var(--danger); }

.pill { display: inline-flex; align-items: center; border: 1px solid var(--border-strong); border-radius: 999px;
  padding: 4px 10px; font-size: 13px; color: var(--muted); }

/* экран канала */
.back { background: none; border: 0; padding: 0 0 16px; color: var(--muted); display: inline-flex;
  align-items: center; gap: 4px; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.row + .row { margin-top: 14px; }
.row .title { font-weight: 600; }
.row .hint { color: var(--muted); font-size: 14px; margin-top: 2px; }

.switch { position: relative; width: 52px; height: 32px; flex: none; border-radius: 999px; border: 0;
  background: var(--border-strong); transition: background .2s; padding: 0; }
.switch::after { content: ""; position: absolute; top: 3px; left: 3px; width: 26px; height: 26px; border-radius: 50%;
  background: var(--bg); transition: transform .2s; }
.switch.on { background: var(--accent); }
.switch.on::after { transform: translateX(20px); background: var(--accent-text); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.chip { border: 1px solid var(--border-strong); background: transparent; border-radius: 999px; padding: 8px 14px;
  font-size: 14px; }
.chip.on { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 600; }
.custom { display: flex; gap: 8px; margin-top: 10px; }
.custom .input { padding: 9px 14px; font-size: 14px; }
.custom .btn { padding: 9px 16px; font-size: 14px; }

.donor { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--border); }
.donor:first-child { border-top: 0; padding-top: 0; }
.donor .body { flex: 1; min-width: 0; }
.donor .name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.donor .meta { color: var(--muted); font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.donor .err { color: var(--danger); font-size: 13px; margin-top: 2px; }
.icon-btn { width: 36px; height: 36px; flex: none; border-radius: 10px; border: 1px solid var(--border);
  background: transparent; display: grid; place-items: center; color: var(--muted); padding: 0; }
.icon-btn svg { width: 16px; height: 16px; }

.plan { display: flex; flex-wrap: wrap; gap: 8px; }
.plan span { border: 1px solid var(--border); border-radius: 10px; padding: 6px 10px; font-size: 14px;
  font-variant-numeric: tabular-nums; }
.plan .done { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.plan .failed { color: var(--danger); border-color: var(--danger); }
.plan .skipped { color: var(--muted); text-decoration: line-through; }

.segmented { display: grid; grid-template-columns: repeat(3, 1fr); background: var(--card-2);
  border: 1px solid var(--border); border-radius: 14px; padding: 4px; gap: 4px; }
.segmented button { border: 0; background: transparent; border-radius: 10px; padding: 9px 4px; font-size: 13px;
  color: var(--muted); }
.segmented button.on { background: var(--accent); color: var(--accent-text); font-weight: 600; }

.status { margin-top: 12px; padding: 12px 14px; border-radius: 12px; background: var(--card-2); font-size: 14px;
  white-space: pre-line; }
.spinner { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--border-strong);
  border-top-color: var(--text); animation: spin .8s linear infinite; display: inline-block; vertical-align: -3px;
  margin-right: 8px; }
@keyframes spin { to { transform: rotate(360deg); } }

.loading { display: grid; place-items: center; min-height: 60vh; color: var(--muted); }

/* нижняя панель */
.tabbar { position: fixed; left: 0; right: 0; bottom: 0; background: var(--bg); border-top: 1px solid var(--border);
  display: grid; grid-template-columns: repeat(4, 1fr); padding: 8px 4px calc(8px + env(safe-area-inset-bottom));
  z-index: 10; }
.tab { background: none; border: 0; display: flex; flex-direction: column; align-items: center; gap: 4px;
  color: var(--muted); font-size: 12px; padding: 6px 2px; }
.tab svg { width: 24px; height: 24px; }
.tab.on { color: var(--text); font-weight: 600; }

.toast { position: fixed; left: 16px; right: 16px; bottom: calc(var(--tabbar) + 16px + env(safe-area-inset-bottom));
  max-width: 528px; margin: 0 auto; background: var(--accent); color: var(--accent-text); border-radius: 14px;
  padding: 14px 16px; font-size: 15px; z-index: 20; box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
  transform: translateY(20px); opacity: 0; transition: all .2s; pointer-events: none; }
.toast.show { transform: none; opacity: 1; }
.toast.error { background: var(--danger); color: #fff; }

/* сворачиваемые списки и справка */
details > summary { list-style: none; cursor: pointer; }
details > summary::-webkit-details-marker { display: none; }
.caret { color: var(--muted); display: inline-flex; transition: transform .2s; }
details[open] > summary .caret { transform: rotate(90deg); }
.group + .group { margin-top: 12px; }
.group > summary { display: flex; align-items: center; gap: 10px; padding: 14px 16px; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius); font-weight: 600; }
.group > summary .count { margin-left: auto; color: var(--muted); font-weight: 500; font-variant-numeric: tabular-nums; }
.group > .list { margin-top: 10px; }
.help details { border-top: 1px solid var(--border); }
.help details:first-child { border-top: 0; }
.help summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 0;
  font-weight: 600; }
.help details:first-child summary { padding-top: 0; }
.help details p { padding-bottom: 14px; font-size: 15px; }
.help details:last-child p { padding-bottom: 0; }
.card .title svg { width: 18px; height: 18px; vertical-align: -3px; }

/* выращивание */
.progress { height: 8px; border-radius: 999px; background: var(--card-2); border: 1px solid var(--border);
  overflow: hidden; margin-top: 12px; }
.progress span { display: block; height: 100%; background: var(--accent); transition: width .3s; }
.grow-form { display: flex; flex-direction: column; gap: 14px; margin-top: 16px; }
.grow-form label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; color: var(--muted); }
.grow-form .input { width: 100%; color: var(--text); }
.grow-form textarea { resize: vertical; min-height: 80px; font: inherit; line-height: 1.4; }
.grow-form .two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.found .donor:first-child { border-top: 0; padding-top: 0; }
.icon-btn.picked { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 700; }
.found .donor .meta { white-space: normal; }
.segmented.two-col { grid-template-columns: 1fr 1fr; }