*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --paper: #F1F4F3; --surface: #FFFFFF; --surface-2: #E9EEEC;
  --ink: #121A18; --ink-soft: #55655F; --ink-faint: #8A9A94;
  --hair: #D3DCD9; --accent: #0B6E5F; --accent-dim: #E3EEEB;
  --signal: #A6341F; --code-bg: #ECF1EF;
  --shadow: 0 -8px 32px rgba(18,26,24,.14);
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --read-size: 17px; --read-lh: 1.62; --read-font: var(--serif); --read-w: 34rem;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --paper: #0E1413; --surface: #151D1B; --surface-2: #1B2422;
    --ink: #E4EBE8; --ink-soft: #9AAAA4; --ink-faint: #6C7B76;
    --hair: #27332F; --accent: #43C0A6; --accent-dim: #102A26;
    --signal: #E5836C; --code-bg: #1A2321; --shadow: 0 -8px 32px rgba(0,0,0,.5);
  }
}
:root[data-theme="sepia"] {
  --paper: #F3EADA; --surface: #FBF5EA; --surface-2: #EAE0CE;
  --ink: #2C2317; --ink-soft: #6A5B45; --ink-faint: #9A8B72;
  --hair: #DDD0B8; --accent: #8A5A1E; --accent-dim: #F0E4CE; --code-bg: #EFE5D3;
}
:root[data-theme="night"] {
  --paper: #0E1413; --surface: #151D1B; --surface-2: #1B2422;
  --ink: #E4EBE8; --ink-soft: #9AAAA4; --ink-faint: #6C7B76;
  --hair: #27332F; --accent: #43C0A6; --accent-dim: #102A26;
  --signal: #E5836C; --code-bg: #1A2321; --shadow: 0 -8px 32px rgba(0,0,0,.5);
}

html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--paper); color: var(--ink); font-family: var(--sans);
  font-size: 17px; line-height: 1.6; min-height: 100vh; overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }

.screen { display: none; min-height: 100vh; }
.screen.on { display: block; }
.mono-label { font-family: var(--mono); font-size: 10.5px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); }
.divider { display: flex; align-items: center; gap: 8px; }
.divider::after { content: ""; flex: 1; height: 1px; background: var(--hair); }

.topbar { position: sticky; top: 0; z-index: 40; display: flex; align-items: center; gap: 8px;
  padding: 9px 12px; min-height: 48px;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(12px); border-bottom: 1px solid var(--hair); }
.topbar .back { font-size: 22px; line-height: 1; color: var(--accent); padding: 4px 6px 6px; }
.topbar .t { font-size: 13px; font-weight: 600; overflow: hidden; text-overflow: ellipsis;
  white-space: nowrap; flex: 1; }
.topbar .ic { font-size: 15px; padding: 6px 8px; color: var(--ink-soft); }
.topbar .ic.act { color: var(--accent); font-weight: 650; }

.fld { width: 100%; background: var(--surface); border: 1px solid var(--hair);
  padding: 12px 13px; font-size: 16px; border-radius: 2px; }
.fld::placeholder { color: var(--ink-faint); }
.fld:focus { outline: none; border-color: var(--accent); }
label.lbl { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-soft); margin: 14px 0 5px; }
.btn { width: 100%; padding: 13px; background: var(--accent); color: #fff; font-weight: 650;
  font-size: 15px; border-radius: 2px; }
.btn:disabled { opacity: .5; cursor: default; }
.btn.ghost { background: none; color: var(--accent); border: 1px solid var(--accent); }
.btn.warn { background: none; color: var(--signal); border: 1px solid var(--signal); }
.btn.sm { padding: 9px; font-size: 13.5px; }
.row { display: flex; gap: 8px; }
.note { font-size: 12.5px; color: var(--ink-faint); margin-top: 10px; line-height: 1.45; }
.err { font-size: 13.5px; color: var(--signal); margin-top: 10px; }

/* ─── вход / первый запуск / приглашение ─── */
.gatebox { min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
  padding: 24px 26px; max-width: 420px; margin: 0 auto; }
.gatebox h1 { font-family: var(--serif); font-weight: 400; font-size: 2.3rem; line-height: 1.06;
  letter-spacing: -.02em; margin: 12px 0 8px; }
.gatebox h1 em { font-style: italic; color: var(--accent); }
.gatebox p.sub { color: var(--ink-soft); font-size: 15px; margin-bottom: 14px; }

/* ─── библиотека ─── */
.lib-head { padding: 20px 18px 6px; display: flex; align-items: flex-start; gap: 12px; }
.lib-head h1 { font-family: var(--serif); font-weight: 400; font-size: 1.9rem;
  letter-spacing: -.015em; margin-top: 5px; }
.ava { flex: 0 0 auto; width: 38px; height: 38px; border: 1px solid var(--hair);
  background: var(--surface); display: grid; place-items: center; font-size: 19px; }
.search { display: flex; align-items: center; gap: 8px; margin: 12px 18px 0;
  background: var(--surface); border: 1px solid var(--hair); padding: 9px 12px; }
.search input { flex: 1; border: 0; background: none; font-size: 15px; }
.search input:focus { outline: none; }
.search span { color: var(--ink-faint); }

.cats { display: flex; gap: 6px; overflow-x: auto; padding: 12px 18px 2px; scrollbar-width: none; }
.cats::-webkit-scrollbar { display: none; }
.cats button { flex: 0 0 auto; font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em;
  text-transform: uppercase; padding: 7px 11px; border: 1px solid var(--hair);
  background: var(--surface); color: var(--ink-soft); white-space: nowrap; }
.cats button.on { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.cats button.edit { border-style: dashed; color: var(--ink-faint); }

.group { padding: 16px 18px 0; }
.group > .mono-label { margin-bottom: 9px; }
.card { display: flex; gap: 13px; width: 100%; text-align: left; background: var(--surface);
  border: 1px solid var(--hair); padding: 12px; margin-bottom: 9px; align-items: flex-start; }
.card:active { border-color: var(--accent); }
.cover { flex: 0 0 50px; height: 68px; background: var(--accent-dim); border: 1px solid var(--hair);
  display: grid; place-items: center; font-size: 23px; }
.card .info { flex: 1; min-width: 0; }
.card .info h3 { font-size: 15.5px; font-weight: 650; line-height: 1.25; }
.card .info .sub { font-size: 12.5px; color: var(--ink-soft); margin-top: 3px; line-height: 1.35; }
.card .meta { display: flex; flex-wrap: wrap; gap: 4px 10px; margin-top: 7px;
  font-family: var(--mono); font-size: 9.5px; letter-spacing: .06em;
  text-transform: uppercase; color: var(--ink-faint); }
.tag { border: 1px solid var(--hair); padding: 1px 5px; }
.tag.fam { color: var(--accent); border-color: var(--accent); }
.bar { height: 3px; background: var(--surface-2); margin-top: 7px; }
.bar i { display: block; height: 100%; background: var(--accent); }
.empty { padding: 40px 24px; text-align: center; color: var(--ink-faint); font-size: 14px;
  line-height: 1.6; }

#fab { position: fixed; right: 16px; bottom: 20px; z-index: 50; width: 54px; height: 54px;
  border-radius: 50%; background: var(--accent); color: #fff; font-size: 26px; line-height: 1;
  display: none; place-items: center; box-shadow: 0 6px 20px rgba(11,110,95,.4); }
#fab.on { display: grid; }
#fabRead { position: fixed; right: 16px; bottom: 20px; z-index: 50; display: none;
  align-items: center; gap: 8px; background: var(--accent); color: #fff; font-weight: 650;
  font-size: 14px; padding: 13px 17px; border-radius: 999px; box-shadow: 0 6px 20px rgba(11,110,95,.4); }
#fabRead.on { display: flex; }
#fabRead .dot { width: 7px; height: 7px; border-radius: 50%; background: #7DF2D8; }

/* ─── книга ─── */
.book-head { padding: 18px 18px 14px; display: flex; gap: 14px; }
.book-head .cover { flex: 0 0 72px; height: 98px; font-size: 33px; }
.book-head h1 { font-family: var(--serif); font-weight: 400; font-size: 1.55rem; line-height: 1.15; }
.book-head .sub { font-size: 12.5px; color: var(--ink-soft); margin-top: 6px; }
.cont { padding: 0 18px 40px; }
.ch { display: flex; gap: 12px; width: 100%; text-align: left; align-items: baseline;
  padding: 12px 0; border-bottom: 1px solid var(--hair); }
.ch .n { font-family: var(--mono); font-size: 11px; color: var(--ink-faint);
  font-variant-numeric: tabular-nums; flex: 0 0 24px; }
.ch .tt { flex: 1; font-size: 15px; line-height: 1.35; }
.ch .rt { font-family: var(--mono); font-size: 10px; color: var(--ink-faint); }
.ch.done .n { color: var(--accent); }

/* ─── чтение ─── */
.progress-line { position: sticky; top: 48px; z-index: 39; height: 2px; }
.progress-line i { display: block; height: 100%; background: var(--accent); width: 0; }
.reader { padding: 20px 20px 130px; max-width: var(--read-w); margin: 0 auto;
  font-family: var(--read-font); font-size: var(--read-size); line-height: var(--read-lh); }
.reader .eyebrow { font-family: var(--mono); margin-bottom: 8px; }
.reader h1 { font-family: var(--serif); font-weight: 400; font-size: 1.7em; line-height: 1.15;
  letter-spacing: -.015em; margin-bottom: 16px; }
.reader h2 { font-family: var(--sans); font-weight: 650; font-size: 1.02em; margin: 24px 0 8px; }
.reader h3 { font-family: var(--sans); font-weight: 650; font-size: .95em; margin: 20px 0 6px; }
.reader p { margin-bottom: .85em; }
.reader ul, .reader ol { margin: 0 0 .85em 1.1em; }
.reader li { margin-bottom: .3em; }
.reader blockquote { font-family: var(--serif); font-style: italic; border-left: 2px solid var(--accent);
  padding-left: 15px; margin: 18px 0; color: var(--ink-soft); }
.reader hr { border: 0; border-top: 1px solid var(--hair); margin: 24px 0; }
.reader pre { background: var(--code-bg); border: 1px solid var(--hair); padding: 12px;
  overflow-x: auto; font-family: var(--mono); font-size: .76em; line-height: 1.6; margin-bottom: 14px; }
.reader code { font-family: var(--mono); font-size: .85em; background: var(--code-bg);
  border: 1px solid var(--hair); padding: .08em .3em; }
.reader pre code { border: 0; padding: 0; background: none; }
.reader img { max-width: 100%; height: auto; }
.reader a { color: var(--accent); }
.tw, .reader table { max-width: 100%; }
.reader table { border-collapse: collapse; width: 100%; font-size: .82em; background: var(--surface);
  font-family: var(--sans); margin-bottom: 14px; display: block; overflow-x: auto; }
.reader th, .reader td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--hair);
  vertical-align: top; }
.reader th { font-family: var(--mono); font-size: 10px; letter-spacing: .07em;
  text-transform: uppercase; color: var(--ink-soft); }
.chnav { display: flex; gap: 8px; margin-top: 28px; font-family: var(--sans); font-size: 13px; }
.chnav button { flex: 1; border: 1px solid var(--hair); background: var(--surface);
  padding: 12px; color: var(--ink-soft); }
.chnav button.primary { border-color: var(--accent); color: var(--accent); font-weight: 650; }
.chnav button:disabled { opacity: .4; }

#sel { position: fixed; z-index: 60; display: none; background: var(--ink); color: var(--paper);
  font-size: 13px; font-weight: 600; padding: 9px 14px; box-shadow: 0 4px 16px rgba(0,0,0,.3);
  white-space: nowrap; }

/* ─── низовые панели ─── */
.sheet { position: fixed; left: 0; right: 0; bottom: 0; z-index: 70; background: var(--surface);
  border-top: 1px solid var(--hair); box-shadow: var(--shadow); transform: translateY(100%);
  transition: transform .26s cubic-bezier(.3,.8,.3,1); display: flex; flex-direction: column;
  max-height: 88vh; }
.sheet.on { transform: translateY(0); }
.s-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px;
  border-bottom: 1px solid var(--hair); }
.s-head .av { width: 30px; height: 30px; background: var(--accent-dim);
  border: 1px solid var(--accent); display: grid; place-items: center; font-size: 14px; flex: 0 0 auto; }
.s-head .who { flex: 1; min-width: 0; }
.s-head .who b { display: block; font-size: 14px; }
.s-head .who span { font-size: 11px; color: var(--ink-faint); }
.s-head .x { font-size: 22px; color: var(--ink-faint); padding: 0 4px 4px; }
.s-body { overflow-y: auto; padding: 14px 16px 20px; flex: 1; -webkit-overflow-scrolling: touch; }
#scrim { position: fixed; inset: 0; z-index: 65; background: rgba(10,16,14,.45);
  opacity: 0; pointer-events: none; transition: opacity .26s; }
#scrim.on { opacity: 1; pointer-events: auto; }

.menu-item { display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  padding: 13px 4px; border-bottom: 1px solid var(--hair); font-size: 15px; }
.menu-item .mi { width: 24px; text-align: center; font-size: 17px; color: var(--accent); flex: 0 0 24px; }
.menu-item small { display: block; font-size: 12px; color: var(--ink-faint); margin-top: 1px; }
.menu-item:last-child { border-bottom: 0; }

.seg { display: flex; border: 1px solid var(--hair); overflow: hidden; }
.seg button { flex: 1; padding: 10px 4px; font-size: 13px; color: var(--ink-soft);
  border-right: 1px solid var(--hair); }
.seg button:last-child { border-right: 0; }
.seg button.on { background: var(--accent-dim); color: var(--accent); font-weight: 650; }
.set-row { margin-bottom: 16px; }
.set-row .lbl2 { font-family: var(--mono); font-size: 10px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-soft); margin-bottom: 6px; display: block; }
.sizer { display: flex; align-items: center; gap: 12px; }
.sizer button { width: 44px; height: 40px; border: 1px solid var(--hair); background: var(--surface);
  display: grid; place-items: center; }
.sizer .val { flex: 1; text-align: center; font-family: var(--mono); font-size: 13px; }
.swatches { display: flex; gap: 8px; }
.swatches button { flex: 1; height: 44px; border: 1px solid var(--hair); font-size: 12px;
  display: grid; place-items: center; }
.swatches button.on { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.sw-day { background: #F1F4F3; color: #121A18; }
.sw-sep { background: #F3EADA; color: #2C2317; }
.sw-ngt { background: #0E1413; color: #E4EBE8; }

/* ─── тренер ─── */
.msg { margin-bottom: 14px; font-size: 15px; line-height: 1.55; }
.msg.me { text-align: right; }
.msg.me .b { display: inline-block; text-align: left; background: var(--accent-dim);
  border: 1px solid var(--hair); padding: 9px 12px; max-width: 88%; font-size: 14.5px;
  white-space: pre-wrap; }
.msg .q { display: block; font-size: 12.5px; color: var(--ink-faint);
  border-left: 2px solid var(--hair); padding-left: 8px; margin-bottom: 6px; font-style: italic; }
.msg.ai .b p { margin-bottom: 9px; }
.msg.ai .b p:last-child { margin-bottom: 0; }
.msg.ai .b code { font-family: var(--mono); font-size: .85em; background: var(--code-bg);
  border: 1px solid var(--hair); padding: .08em .3em; }
.msg.ai .b pre { background: var(--code-bg); border: 1px solid var(--hair); padding: 10px;
  overflow-x: auto; font-family: var(--mono); font-size: 12px; margin: 8px 0; }
.msg.sys .b { font-size: 13px; color: var(--signal); border-left: 2px solid var(--signal);
  padding-left: 10px; }
.cursor { display: inline-block; width: 8px; height: 15px; background: var(--accent);
  vertical-align: -2px; animation: bl 1s steps(2) infinite; }
@keyframes bl { 50% { opacity: 0 } }
.chips { display: flex; gap: 6px; overflow-x: auto; padding: 8px 16px 0; scrollbar-width: none; }
.chips::-webkit-scrollbar { display: none; }
.chips button { flex: 0 0 auto; font-size: 12.5px; padding: 7px 11px; border: 1px solid var(--hair);
  background: var(--surface-2); color: var(--ink-soft); white-space: nowrap; }
.c-foot { padding: 10px 16px 16px; border-top: 1px solid var(--hair); margin-top: 8px; }
.c-input { display: flex; gap: 8px; align-items: flex-end; }
.c-input textarea { flex: 1; resize: none; border: 1px solid var(--hair); background: var(--paper);
  padding: 10px 12px; font-size: 15px; font-family: inherit; max-height: 100px; line-height: 1.4; }
.c-input textarea:focus { outline: none; border-color: var(--accent); }
.c-input .send { flex: 0 0 auto; width: 42px; height: 42px; background: var(--accent); color: #fff;
  display: grid; place-items: center; font-size: 17px; }
.c-input .send:disabled { opacity: .5; }
.quoted { display: none; font-size: 12.5px; color: var(--ink-soft); background: var(--accent-dim);
  border-left: 2px solid var(--accent); padding: 7px 10px; margin-bottom: 8px; }
.quoted.on { display: block; }
.quoted b { font-family: var(--mono); font-size: 9.5px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 2px; }

/* ─── формы ─── */
.form { padding: 16px 18px 50px; max-width: 480px; margin: 0 auto; }
.form h2 { font-family: var(--serif); font-weight: 400; font-size: 1.5rem; margin-bottom: 4px; }
.form .lead { font-size: 13.5px; color: var(--ink-soft); margin-bottom: 6px; line-height: 1.5; }
.emo-pick { display: flex; gap: 6px; flex-wrap: wrap; }
.emo-pick button { width: 42px; height: 42px; border: 1px solid var(--hair); background: var(--surface);
  font-size: 20px; display: grid; place-items: center; }
.emo-pick button.on { border-color: var(--accent); background: var(--accent-dim); }
.drop { border: 1px dashed var(--hair); background: var(--surface); padding: 22px 16px;
  text-align: center; color: var(--ink-faint); font-size: 13.5px; width: 100%; }
.drop b { display: block; color: var(--accent); font-size: 14.5px; margin-bottom: 4px; }
.step { display: flex; gap: 6px; margin-bottom: 16px; }
.step div { flex: 1; height: 3px; background: var(--surface-2); }
.step div.on { background: var(--accent); }

.list-row { display: flex; align-items: center; gap: 10px; background: var(--surface);
  border: 1px solid var(--hair); padding: 11px 12px; margin-bottom: 7px; }
.list-row .grab { color: var(--ink-faint); font-size: 15px; cursor: grab; }
.list-row .nm { flex: 1; font-size: 14.5px; min-width: 0; }
.list-row .nm small { display: block; font-size: 11.5px; color: var(--ink-faint); }
.list-row .cnt { font-family: var(--mono); font-size: 10px; color: var(--ink-faint); }
.list-row .act { color: var(--ink-soft); font-size: 14px; padding: 2px 6px; }
.list-row .act.del { color: var(--signal); }
.list-row .role { font-family: var(--mono); font-size: 9.5px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent); border: 1px solid var(--accent); padding: 1px 5px; }
.list-row .em { font-size: 19px; }
.list-row.drag { opacity: .4; }
.add-inline { display: flex; gap: 7px; margin-top: 12px; }
.add-inline input { flex: 1; }
.add-inline button { flex: 0 0 auto; padding: 0 16px; background: var(--accent); color: #fff;
  font-weight: 650; font-size: 14px; }

.ch-edit { display: flex; align-items: center; gap: 9px; background: var(--surface);
  border: 1px solid var(--hair); padding: 10px 11px; margin-bottom: 6px; }
.ch-edit .n { font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint); flex: 0 0 20px; }
.ch-edit input { flex: 1; border: 0; background: none; font-size: 14px; min-width: 0; }
.ch-edit input:focus { outline: none; }
.ch-edit .w { font-family: var(--mono); font-size: 9.5px; color: var(--ink-faint); }

.toast { position: fixed; left: 50%; transform: translateX(-50%) translateY(20px); bottom: 90px;
  z-index: 90; background: var(--ink); color: var(--paper); font-size: 13.5px; padding: 10px 16px;
  opacity: 0; transition: all .25s; pointer-events: none; max-width: 90vw; text-align: center; }
.toast.on { opacity: 1; transform: translateX(-50%) translateY(0); }

.invite-box { background: var(--accent-dim); border-left: 2px solid var(--accent);
  padding: 12px 14px; margin-top: 14px; font-size: 13px; word-break: break-all; }
.invite-box b { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 5px; }

.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--hair);
  border-top-color: var(--accent); border-radius: 50%; animation: sp .7s linear infinite;
  vertical-align: -2px; }
@keyframes sp { to { transform: rotate(360deg) } }

@media (min-width: 46rem) {
  .sheet { left: auto; right: 20px; bottom: 20px; width: 400px; max-height: 76vh;
    border: 1px solid var(--hair); }
  #scrim { display: none; }
  .card { max-width: 620px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation-duration: .01ms !important; }
}