/* Liquid glass: полупрозрачные размытые панели поверх цветного фона. Тема — html[data-theme]. */

:root, :root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #05070e;
  --blob-1: rgba(109, 93, 252, .62);
  --blob-2: rgba(34, 211, 238, .42);
  --blob-3: rgba(244, 114, 182, .38);
  --blob-4: rgba(52, 211, 153, .18);
  --glass: rgba(255, 255, 255, .045);
  --glass-strong: rgba(255, 255, 255, .1);
  --glass-overlay: rgba(255, 255, 255, .12);
  --glass-border: rgba(255, 255, 255, .12);
  --glass-shine: rgba(255, 255, 255, .24);
  --glass-edge: inset 0 -1px 1px rgba(255, 255, 255, .05);
  --glass-shadow: 0 10px 40px rgba(0, 0, 0, .45);
  --blur: blur(22px) saturate(190%);
  --text: #f4f6fb;
  --hint: rgba(226, 232, 255, .58);
  --sep: rgba(255, 255, 255, .09);
  --accent: #5aa9ff;
  --accent-2: #8b7bff;
  --danger: #ff6177;
  --success: #34d399;
  --bubble-in: rgba(255, 255, 255, .065);
  --bubble-out: rgba(90, 169, 255, .22);
}

/* светлая — почти прозрачное стекло как в iOS: фон просвечивает, края подсвечены */
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #e8ecf6;
  --blob-1: rgba(139, 123, 255, .7);
  --blob-2: rgba(56, 189, 248, .62);
  --blob-3: rgba(251, 146, 196, .6);
  --blob-4: rgba(253, 224, 71, .4);
  --glass: rgba(255, 255, 255, .1);
  --glass-strong: rgba(255, 255, 255, .42);
  --glass-overlay: rgba(255, 255, 255, .1);
  --glass-border: rgba(255, 255, 255, .55);
  --glass-shine: rgba(255, 255, 255, .95);
  --glass-edge: inset 0 0 0 .5px rgba(255, 255, 255, .5), inset 0 -1px 1px rgba(255, 255, 255, .45),
    inset 1px 0 1px rgba(255, 255, 255, .25);
  --glass-shadow: 0 8px 30px rgba(40, 52, 90, .12);
  --blur: blur(14px) saturate(200%);
  --text: #0b1222;
  --hint: rgba(18, 28, 56, .62);
  --sep: rgba(20, 30, 60, .08);
  --accent: #2f7cf6;
  --accent-2: #6d5dfc;
  --danger: #ef3b55;
  --success: #16b67a;
  --bubble-in: rgba(255, 255, 255, .32);
  --bubble-out: rgba(47, 124, 246, .18);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

/* фон только у html: фон у body перекрыл бы цветные пятна body::before */
html { background: var(--bg); transition: background .4s; }
html, body { margin: 0; min-height: 100%; color: var(--text); }

body {
  font: 15px/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(96px + env(safe-area-inset-bottom));
  overscroll-behavior-y: none;
  transition: color .4s;
}

/* цветные пятна за стеклом — без них стекло не «читается» */
body::before {
  content: ""; position: fixed; inset: -20%; z-index: -1; pointer-events: none;
  background:
    radial-gradient(38% 32% at 18% 12%, var(--blob-1), transparent 70%),
    radial-gradient(34% 30% at 88% 30%, var(--blob-2), transparent 70%),
    radial-gradient(40% 34% at 40% 92%, var(--blob-3), transparent 70%),
    radial-gradient(30% 26% at 70% 62%, var(--blob-4), transparent 70%);
  filter: blur(20px);
  animation: drift 26s ease-in-out infinite alternate;
}
@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(-4%, 3%, 0) scale(1.08); }
}
@media (prefers-reduced-motion: reduce) { body::before { animation: none; } }

button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }

#view { max-width: 640px; margin: 0 auto; padding: 0 14px 24px; }

/* базовое стекло */
.glass, .card, .tile, .episode, .edit-card, .search, .segmented, #tabs, .chat-head {
  background: var(--glass);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 var(--glass-shine), var(--glass-edge), var(--glass-shadow);
}

.card, .tile, .episode, .edit-card { border-radius: 24px; overflow: hidden; position: relative; }

/* блик по верхнему краю */
.card::after, .tile::after, .episode::after, .edit-card::after, #tabs::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: linear-gradient(160deg, var(--glass-overlay), transparent 32%);
}

/* --- плавающая панель вкладок --- */
#tabs {
  position: fixed; z-index: 10; left: 50%; transform: translateX(-50%);
  bottom: calc(14px + env(safe-area-inset-bottom));
  width: min(420px, calc(100% - 28px)); height: 66px; padding: 6px;
  display: flex; gap: 4px; border-radius: 33px;
  transition: transform .3s, opacity .3s;
}
#tabs button {
  flex: 1; position: relative; z-index: 1; border-radius: 27px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  font-size: 10.5px; font-weight: 600; color: var(--hint); transition: color .2s, background .25s, transform .15s;
}
#tabs button:active { transform: scale(.94); }
#tabs svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
#tabs button.active {
  color: var(--accent);
  background: var(--glass-strong);
  box-shadow: inset 0 1px 0 var(--glass-shine), 0 4px 14px rgba(0, 0, 0, .12);
}
body.inner #tabs { transform: translate(-50%, 140%); opacity: 0; pointer-events: none; }
body.inner { padding-bottom: calc(20px + env(safe-area-inset-bottom)); }

/* --- заголовки --- */
.page-head { padding: 26px 6px 14px; }
.page-head h1 { margin: 0; font-size: 32px; font-weight: 800; letter-spacing: -.8px; }
.page-head p { margin: 4px 0 0; color: var(--hint); font-size: 14px; }

.section-title {
  margin: 24px 14px 8px; font-size: 12.5px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .6px; color: var(--hint);
}
.section-hint { margin: 10px 14px 0; font-size: 13px; color: var(--hint); }

/* --- поиск --- */
.search {
  display: flex; align-items: center; gap: 8px; margin-bottom: 14px; padding: 0 16px; height: 46px;
  border-radius: 23px; color: var(--hint);
}
.search svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; flex: none; }
.search input { flex: 1; min-width: 0; border: 0; outline: 0; background: none; color: var(--text); font: inherit; }
.search input::placeholder { color: var(--hint); }

/* --- строки списков --- */
.row {
  display: flex; align-items: center; gap: 12px; width: 100%; padding: 11px 16px; text-align: left;
  position: relative; transition: background .2s;
}
.row + .row::before { content: ""; position: absolute; top: 0; right: 16px; left: 76px; border-top: 1px solid var(--sep); }
.row:active { background: var(--glass-strong); }
.row[hidden] { display: none; }
.row-body { flex: 1; min-width: 0; }
.row-title { display: flex; align-items: baseline; gap: 8px; }
.row-title b { flex: 1; min-width: 0; font-weight: 650; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row-title time { flex: none; font-size: 12px; color: var(--hint); }
.row-sub { display: flex; gap: 6px; margin-top: 5px; }
.chevron { flex: none; width: 8px; height: 14px; color: var(--hint); opacity: .6; }

/* --- аватарки --- */
.avatar {
  flex: none; position: relative; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%;
  overflow: hidden; color: #fff; font-weight: 700; font-size: 17px; letter-spacing: .3px;
  box-shadow: 0 0 0 1.5px var(--glass-border), 0 4px 12px rgba(0, 0, 0, .25);
}
.avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .3s; }
.avatar img.loaded { opacity: 1; }
.avatar.sm { width: 40px; height: 40px; font-size: 15px; }
.avatar.lg { width: 84px; height: 84px; font-size: 30px; }

.chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 3px 9px; border-radius: 11px;
  font-size: 12px; font-weight: 700; border: 1px solid transparent;
}
.chip.del { color: var(--danger); background: color-mix(in srgb, var(--danger) 16%, transparent); border-color: color-mix(in srgb, var(--danger) 25%, transparent); }
.chip.edit { color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, transparent); border-color: color-mix(in srgb, var(--accent) 25%, transparent); }

/* --- пустые состояния и загрузка --- */
.empty { padding: 48px 24px; text-align: center; color: var(--hint); }
.empty img { width: 120px; height: 120px; border-radius: 50%; margin-bottom: 14px; box-shadow: 0 0 0 1.5px var(--glass-border), var(--glass-shadow); }
.empty b { display: block; margin-bottom: 6px; color: var(--text); font-size: 17px; }

.loader { display: grid; place-items: center; padding: 72px 0; }
.loader::after {
  content: ""; width: 30px; height: 30px; border-radius: 50%;
  border: 3px solid var(--sep); border-top-color: var(--accent); animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --- экран чата --- */
.chat-head {
  position: sticky; top: 8px; z-index: 5; display: flex; align-items: center; gap: 12px;
  margin: 8px 0 0; padding: 10px 14px; border-radius: 26px;
}
.chat-head b { display: block; font-size: 16px; }
.chat-head a { color: var(--accent); font-size: 13px; text-decoration: none; }
.chat-head span { color: var(--hint); font-size: 13px; }

.segmented { display: flex; gap: 2px; margin: 14px 0; padding: 4px; border-radius: 20px; }
.segmented button {
  flex: 1; padding: 8px 4px; border-radius: 16px; font-size: 14px; font-weight: 600; color: var(--hint);
  transition: background .25s, color .25s;
}
.segmented button.active {
  background: var(--glass-strong); color: var(--text);
  box-shadow: inset 0 1px 0 var(--glass-shine), 0 2px 10px rgba(0, 0, 0, .15);
}

/* фрагмент переписки вокруг удалённого сообщения */
.episode { padding: 14px 12px; }
.episode-head {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 0 4px 12px; margin-bottom: 8px; border-bottom: 1px solid var(--sep);
}
.episode-head time { font-size: 12px; color: var(--hint); }
.episode-break { display: flex; align-items: center; gap: 10px; margin: 20px 10px; color: var(--hint); font-size: 12px; }
.episode-break::before, .episode-break::after { content: ""; flex: 1; border-top: 1px dashed var(--hint); opacity: .45; }

.context-label {
  display: flex; align-items: center; gap: 8px; margin: 12px 4px 6px; color: var(--hint);
  font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .7px;
}
.context-label::after { content: ""; flex: 1; border-top: 1px solid var(--sep); }

/* --- сообщения --- */
.msgs { display: flex; flex-direction: column; gap: 5px; }
.msg-wrap { display: flex; flex-direction: column; align-items: flex-start; }
.msg-wrap.out { align-items: flex-end; }
.msg {
  position: relative; max-width: 82%; padding: 7px 12px 6px; border-radius: 20px 20px 20px 7px;
  background: var(--bubble-in); border: 1px solid var(--glass-border); word-wrap: break-word;
  box-shadow: inset 0 1px 0 var(--glass-shine);
}
.out .msg { border-radius: 20px 20px 7px 20px; background: var(--bubble-out); }
.msg.context { opacity: .72; }
.msg.deleted {
  background: color-mix(in srgb, var(--danger) 16%, transparent);
  border-color: color-mix(in srgb, var(--danger) 55%, transparent);
  box-shadow: inset 0 1px 0 var(--glass-shine), 0 0 22px color-mix(in srgb, var(--danger) 25%, transparent);
}
.msg-text { font-size: 15px; white-space: pre-wrap; }
.msg-meta { float: right; margin: 6px 0 -2px 10px; font-size: 11px; color: var(--hint); white-space: nowrap; }
.msg-meta button { color: var(--accent); font-size: 11px; font-weight: 700; margin-right: 4px; }
.deleted-tag { margin: 4px 8px 3px; font-size: 11.5px; font-weight: 700; color: var(--danger); }

.media { display: block; max-width: 100%; max-height: 320px; margin: 2px -6px 4px; border-radius: 15px; background: var(--sep); }
.media-video { width: 260px; max-width: calc(100% + 12px); }
.round { width: 180px; height: 180px; border-radius: 50%; object-fit: cover; margin: 2px 0 4px; display: block; }
.sticker { width: 140px; height: 140px; object-fit: contain; display: block; }
audio { width: 230px; max-width: 100%; height: 36px; margin: 2px 0; }
.doc { display: flex; align-items: center; gap: 8px; color: var(--accent); text-decoration: none; font-weight: 600; padding: 4px 0; }
.media-fallback { color: var(--hint); font-size: 14px; padding: 4px 0; }

/* история правок */
.history { margin-top: 6px; padding-top: 6px; border-top: 1px dashed var(--sep); }
.history-item { font-size: 13.5px; color: var(--hint); margin-bottom: 4px; }
.history-item s { color: var(--text); opacity: .65; }
.history-item small { display: block; font-size: 11px; }
.edit-card { padding: 14px; }
.edit-card + .edit-card { margin-top: 12px; }
.edit-step { font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; color: var(--hint); margin: 10px 2px 5px; }
.edit-step:first-child { margin-top: 0; }

/* --- статистика --- */
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tile { padding: 16px; }
.tile b { display: block; font-size: 30px; font-weight: 800; letter-spacing: -.8px; }
.tile span { color: var(--hint); font-size: 13px; }
.tile.del b { background: linear-gradient(135deg, #ff8a5c, var(--danger)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tile.edit b { background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.chart { padding: 18px 16px 14px; }
.bars { display: flex; align-items: flex-end; gap: 5px; height: 140px; }
.bar-col { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; gap: 2px; height: 100%; }
.bar { border-radius: 6px 6px 3px 3px; transition: height .5s cubic-bezier(.2, .8, .2, 1); }
.bar.del { background: linear-gradient(180deg, #ff8a5c, var(--danger)); }
.bar.edit { background: linear-gradient(180deg, var(--accent-2), var(--accent)); }
.bar-labels { display: flex; gap: 5px; margin-top: 8px; }
.bar-labels span { flex: 1; text-align: center; font-size: 10px; color: var(--hint); }
.legend { display: flex; gap: 16px; margin-top: 12px; font-size: 12px; color: var(--hint); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 4px; margin-right: 6px; vertical-align: -1px; }

.top-row .row-body { display: flex; flex-direction: column; gap: 7px; }
.meter { height: 7px; border-radius: 4px; background: var(--sep); overflow: hidden; }
.meter i { display: block; height: 100%; border-radius: 4px; }
.top-row .n { font-weight: 800; font-size: 15px; }
.top-row .share { font-size: 12px; color: var(--hint); margin-left: 6px; font-weight: 500; }
.show-more { display: block; width: 100%; padding: 13px; font-weight: 600; color: var(--accent); border-top: 1px solid var(--sep); }

/* --- настройки --- */
.setting { display: flex; align-items: center; gap: 12px; padding: 13px 16px; position: relative; }
.setting + .setting::before { content: ""; position: absolute; top: 0; right: 16px; left: 58px; border-top: 1px solid var(--sep); }
.setting-body { flex: 1; min-width: 0; font-weight: 550; }
.setting-body small { display: block; color: var(--hint); font-size: 13px; margin-top: 2px; font-weight: 400; }
.setting-icon {
  flex: none; display: grid; place-items: center; width: 32px; height: 32px; border-radius: 10px; color: #fff; font-size: 16px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .35), 0 3px 8px rgba(0, 0, 0, .2);
}

/* переключатель в стиле iOS со стеклянной «линзой» */
.switch { position: relative; flex: none; width: 54px; height: 32px; }
.switch input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; z-index: 1; }
.switch span {
  position: absolute; inset: 0; border-radius: 16px; pointer-events: none;
  background: color-mix(in srgb, var(--hint) 30%, transparent);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, .25); transition: background .25s;
}
.switch span::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(180deg, #fff, #eef1f7);
  box-shadow: 0 3px 8px rgba(0, 0, 0, .3), inset 0 -1px 2px rgba(0, 0, 0, .06);
  transition: transform .3s cubic-bezier(.3, 1.4, .5, 1), width .2s;
}
.switch input:active + span::after { width: 34px; }
.switch input:checked + span { background: var(--success); }
.switch input:checked + span::after { transform: translateX(22px); }
.switch input:checked:active + span::after { transform: translateX(16px); }

.keep { padding: 12px 14px; }
.keep .segmented { margin: 0; background: color-mix(in srgb, var(--hint) 10%, transparent); box-shadow: none; border-color: var(--sep); -webkit-backdrop-filter: none; backdrop-filter: none; }

/* --- помощь --- */
.hero { text-align: center; padding: 30px 16px 8px; }
.hero img { width: 108px; height: 108px; border-radius: 50%; box-shadow: 0 0 0 2px var(--glass-border), 0 12px 34px rgba(0, 0, 0, .35); }
.hero h1 { margin: 16px 0 4px; font-size: 24px; font-weight: 800; letter-spacing: -.4px; }
.hero p { margin: 0; color: var(--hint); }

.status { display: flex; align-items: center; gap: 12px; padding: 15px 16px; font-weight: 600; }
.status .dot { flex: none; width: 10px; height: 10px; border-radius: 50%; }
.status.ok .dot { background: var(--success); box-shadow: 0 0 0 4px color-mix(in srgb, var(--success) 25%, transparent), 0 0 14px var(--success); }
.status.off .dot { background: var(--danger); box-shadow: 0 0 0 4px color-mix(in srgb, var(--danger) 25%, transparent); }
.status small { display: block; color: var(--hint); font-size: 13px; font-weight: 400; }

.steps { counter-reset: step; margin: 0; padding: 6px 0; list-style: none; }
.steps li { display: flex; gap: 12px; padding: 10px 16px; counter-increment: step; }
.steps li::before {
  content: counter(step); flex: none; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; font-size: 13px; font-weight: 800;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .4);
}
.steps b { font-weight: 650; }
.notes { margin: 0; padding: 14px 16px 14px 34px; color: var(--hint); font-size: 14px; }
.notes li + li { margin-top: 6px; }

.fade-in { animation: fade .35s cubic-bezier(.2, .8, .2, 1); }
@keyframes fade { from { opacity: 0; transform: translateY(8px) scale(.99); } to { opacity: 1; transform: none; } }