:root {
  --bg: var(--tg-theme-secondary-bg-color, #f2f2f6);
  --card: var(--tg-theme-section-bg-color, var(--tg-theme-bg-color, #ffffff));
  --text: var(--tg-theme-text-color, #111114);
  --hint: var(--tg-theme-hint-color, #8a8a92);
  --accent: var(--tg-theme-button-color, #2f7d6d);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --link: var(--tg-theme-link-color, var(--accent));
  --danger: var(--tg-theme-destructive-text-color, #d9473f);
  --ok: #2e9e5b;
  --line: color-mix(in srgb, var(--text) 10%, transparent);
  --soft: color-mix(in srgb, var(--text) 5%, transparent);
  --accent-soft: color-mix(in srgb, var(--accent) 13%, transparent);
  --danger-soft: color-mix(in srgb, var(--danger) 13%, transparent);
  --ok-soft: color-mix(in srgb, var(--ok) 14%, transparent);
  --r: 18px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --safe-b: var(--tg-safe-area-inset-bottom, env(safe-area-inset-bottom, 0px));
}
@media (prefers-color-scheme: dark) {
  :root:not([data-tg]) { --bg: #0f1012; --card: #1b1c1f; --text: #f1f1f3; --hint: #8d8e95; --accent: #3fa58f; }
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body {
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased; min-height: 100vh; overscroll-behavior-y: none;
}
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; padding: 0; }
input, textarea { font: inherit; color: var(--text); }
.hidden { display: none !important; }

#app { padding: 12px 16px calc(96px + var(--safe-b)); max-width: 640px; margin: 0 auto; }
.splash { min-height: 70vh; display: grid; place-items: center; }
.spinner { width: 28px; height: 28px; border-radius: 50%; border: 3px solid var(--line); border-top-color: var(--accent);
  animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── type ─────────────────────────────────────── */
h1 { font-size: 26px; line-height: 1.15; letter-spacing: -.02em; margin: 0 0 8px; font-weight: 700; }
h2 { font-size: 19px; line-height: 1.25; margin: 0 0 4px; font-weight: 650; letter-spacing: -.01em; }
.sub { color: var(--hint); font-size: 15px; }
.small { font-size: 13px; color: var(--hint); }
.label { font-size: 13px; color: var(--hint); margin: 18px 4px 8px; }

/* ── header ───────────────────────────────────── */
.top { display: flex; align-items: center; gap: 10px; margin: 4px 2px 14px; }
.top .who { flex: 1; min-width: 0; }
.top .who b { display: block; font-size: 17px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.top .who span { font-size: 13px; color: var(--hint); }
.icon-btn { width: 40px; height: 40px; border-radius: 12px; background: var(--card); display: grid; place-items: center; }
.icon-btn svg, .tabs svg, .btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8;
  stroke-linecap: round; stroke-linejoin: round; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 14px; }
.stat { background: var(--card); border-radius: 14px; padding: 10px 12px; }
.stat b { display: block; font-size: 20px; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.stat span { font-size: 12px; color: var(--hint); }

/* ── cards ────────────────────────────────────── */
.card { background: var(--card); border-radius: var(--r); padding: 18px; margin-bottom: 12px; }
.card.flat { padding: 4px 0; }
.row { display: flex; align-items: center; gap: 12px; padding: 12px 16px; }
.row + .row { border-top: 1px solid var(--line); }
.row .grow { flex: 1; min-width: 0; }
.tag { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; color: var(--accent);
  background: var(--accent-soft); padding: 3px 9px; border-radius: 99px; }
.tag.gray { color: var(--hint); background: var(--soft); }
.tag.ok { color: var(--ok); background: var(--ok-soft); }
.tag.bad { color: var(--danger); background: var(--danger-soft); }

/* ── sentence ─────────────────────────────────── */
.sentence-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 14px; }
.words { display: flex; flex-wrap: wrap; gap: 6px 4px; font-size: 21px; line-height: 1.3; }
.w { position: relative; padding: 4px 7px 5px; border-radius: 10px; transition: background .15s, box-shadow .15s;
  display: inline-flex; flex-direction: column; align-items: flex-start; }
.w:active { transform: scale(.97); }
.w.irr::after { content: ""; position: absolute; left: 7px; right: 7px; bottom: 2px; border-bottom: 1.5px dotted
  color-mix(in srgb, var(--hint) 70%, transparent); }
.w.comm::after { border-bottom: 1.5px solid var(--ok); }
.w.sel { background: var(--danger-soft); box-shadow: inset 0 0 0 1.5px var(--danger); color: var(--danger); }
.w.sel::after { display: none; }
.w.fixed { background: var(--accent-soft); box-shadow: inset 0 0 0 1.5px var(--accent); }
.w .rd { font: 12px/1.2 var(--mono); color: var(--hint); margin-top: 2px; }
.words .p { padding: 4px 0; margin-left: -4px; color: var(--hint); }
.hint-line { margin-top: 16px; font-size: 13px; color: var(--hint); display: flex; gap: 14px; flex-wrap: wrap; }
.hint-line i { display: inline-block; width: 18px; vertical-align: middle; margin-right: 5px; border-bottom: 1.5px dotted var(--hint); }
.hint-line i.c { border-bottom: 1.5px solid var(--ok); }

.rd-mono { font-family: var(--mono); font-size: 15px; }
.st { color: var(--accent); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }

/* ── player ───────────────────────────────────── */
.player { display: flex; align-items: center; gap: 14px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.play { position: relative; width: 56px; height: 56px; border-radius: 50%; background: var(--accent); color: var(--accent-text);
  display: grid; place-items: center; flex: none; transition: transform .12s; }
.play:active { transform: scale(.94); }
.play svg { width: 22px; height: 22px; fill: currentColor; }
.play .ring { position: absolute; inset: -4px; transform: rotate(-90deg); }
.play .ring circle { fill: none; stroke: var(--accent); stroke-width: 2.5; stroke-linecap: round; opacity: .35;
  transition: stroke-dashoffset .1s linear; }
.player .meta { flex: 1; min-width: 0; }
.player .meta b { display: block; font-size: 15px; }
.bar { height: 4px; border-radius: 4px; background: var(--line); margin-top: 8px; overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; background: var(--accent); border-radius: 4px; }
.player.small .play { width: 44px; height: 44px; }
.player.small .play svg { width: 18px; height: 18px; }
.player.b .play { background: var(--soft); color: var(--text); }
.player.b .play .ring circle { stroke: var(--hint); }
.player.b .bar i { background: var(--hint); }

/* ── buttons ──────────────────────────────────── */
.btn { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; min-height: 50px;
  border-radius: 14px; font-weight: 600; font-size: 16px; padding: 0 16px; transition: transform .1s, opacity .15s; }
.btn:active { transform: scale(.98); }
.btn.primary { background: var(--accent); color: var(--accent-text); }
.btn.soft { background: var(--accent-soft); color: var(--accent); }
.btn.ghost { background: var(--card); color: var(--text); }
.btn.danger { background: var(--danger-soft); color: var(--danger); }
.btn.okb { background: var(--ok-soft); color: var(--ok); }
.btn[disabled] { opacity: .45; pointer-events: none; }
.btns { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.btns.three { grid-template-columns: 1fr 1fr 1fr; }
.mini { font-size: 14px; font-weight: 600; padding: 7px 12px; border-radius: 10px; background: var(--soft); }
.mini.ok { background: var(--ok-soft); color: var(--ok); }
.mini.bad { background: var(--danger-soft); color: var(--danger); }
.mini.on { box-shadow: inset 0 0 0 1.5px currentColor; }
.link { color: var(--link); font-weight: 500; }

/* ── forms ────────────────────────────────────── */
.field { display: block; margin-bottom: 14px; }
.field > span { display: block; font-size: 13px; color: var(--hint); margin: 0 4px 6px; }
.input, textarea.input { width: 100%; background: var(--soft); border: 1.5px solid transparent; border-radius: 12px;
  padding: 12px 14px; outline: none; transition: border-color .15s, background .15s; resize: none; }
.input:focus { border-color: var(--accent); background: transparent; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { padding: 8px 13px; border-radius: 99px; background: var(--soft); font-size: 14px; }
.chip.on { background: var(--accent); color: var(--accent-text); }

/* ── fix ──────────────────────────────────────── */
.fix-word { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.fix-word b { font-size: 20px; }
.fix-word .rd-mono { color: var(--hint); }
.quick { display: flex; gap: 6px; overflow-x: auto; margin: 10px -18px 0; padding: 0 18px 2px; scrollbar-width: none; }
.quick::-webkit-scrollbar { display: none; }
.quick button { flex: none; font-size: 13px; padding: 6px 11px; border-radius: 99px; background: var(--soft); white-space: nowrap; }
.manual { margin-top: 10px; }
.arrow { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-family: var(--mono); font-size: 16px; }
.arrow s { color: var(--hint); text-decoration-color: color-mix(in srgb, var(--danger) 60%, transparent); }
.note { margin-top: 8px; font-size: 14px; color: var(--hint); }
.decide { display: flex; gap: 8px; margin-top: 12px; }
.decide .mini { flex: 1; text-align: center; padding: 10px; }

.thinking { display: flex; flex-direction: column; align-items: center; gap: 14px; padding: 36px 0 28px; text-align: center; }
.wave { display: flex; gap: 4px; height: 28px; align-items: center; }
.wave i { width: 4px; border-radius: 2px; background: var(--accent); animation: wave 1s ease-in-out infinite; }
.wave i:nth-child(2) { animation-delay: .1s } .wave i:nth-child(3) { animation-delay: .2s }
.wave i:nth-child(4) { animation-delay: .3s } .wave i:nth-child(5) { animation-delay: .4s }
@keyframes wave { 0%, 100% { height: 6px } 50% { height: 26px } }

/* ── hero (registration / waiting) ────────────── */
.hero { text-align: center; padding: 28px 8px 8px; }
.logo { width: 72px; height: 72px; border-radius: 22px; background: var(--accent); color: var(--accent-text);
  display: grid; place-items: center; margin: 0 auto 18px; }
.logo svg { width: 38px; height: 38px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.steps { counter-reset: s; margin: 18px 0 6px; }
.steps div { counter-increment: s; display: flex; gap: 12px; align-items: flex-start; padding: 8px 0; text-align: left; }
.steps div::before { content: counter(s); flex: none; width: 26px; height: 26px; border-radius: 50%; background: var(--accent-soft);
  color: var(--accent); font-weight: 700; font-size: 14px; display: grid; place-items: center; margin-top: 1px; }

/* ── lists ────────────────────────────────────── */
.seg { display: flex; background: var(--soft); border-radius: 12px; padding: 3px; margin-bottom: 12px; }
.seg button { flex: 1; padding: 8px 6px; border-radius: 9px; font-size: 14px; font-weight: 600; color: var(--hint); }
.seg button.on { background: var(--card); color: var(--text); box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.seg em { font-style: normal; font-size: 12px; margin-left: 4px; color: var(--danger); }
.item { padding: 14px 16px; }
.item + .item { border-top: 1px solid var(--line); }
.item .sentence { font-size: 14px; color: var(--hint); margin-top: 6px; }
.item .actions { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.empty { text-align: center; color: var(--hint); padding: 40px 20px; font-size: 15px; }
.avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; font-weight: 700; flex: none; }

/* ── tabs ─────────────────────────────────────── */
.tabs { position: fixed; left: 0; right: 0; bottom: 0; display: flex; justify-content: center; gap: 4px;
  padding: 6px 12px calc(6px + var(--safe-b)); background: color-mix(in srgb, var(--card) 88%, transparent);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-top: 1px solid var(--line); z-index: 5; }
.tabs button { position: relative; flex: 1; max-width: 160px; display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 6px 0; font-size: 11px; font-weight: 600; color: var(--hint); border-radius: 12px; }
.tabs button.on { color: var(--accent); }
.tabs .dot { position: absolute; top: 4px; right: calc(50% - 18px); width: 8px; height: 8px; border-radius: 50%; background: var(--danger); }

/* ── sheet ────────────────────────────────────── */
.sheet-bg { position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 10; opacity: 0; transition: opacity .2s; }
.sheet-bg.open { opacity: 1; }
.sheet { position: fixed; left: 0; right: 0; bottom: 0; z-index: 11; background: var(--card); border-radius: 20px 20px 0 0;
  padding: 10px 16px calc(20px + var(--safe-b)); max-width: 640px; margin: 0 auto; transform: translateY(100%);
  transition: transform .25s cubic-bezier(.2,.8,.2,1); max-height: 85vh; overflow-y: auto; }
.sheet.open { transform: none; }
.sheet .grip { width: 38px; height: 5px; border-radius: 3px; background: var(--line); margin: 0 auto 14px; }

.toast { position: fixed; left: 50%; bottom: calc(90px + var(--safe-b)); transform: translate(-50%, 20px); opacity: 0;
  background: color-mix(in srgb, var(--text) 88%, transparent); color: var(--bg); padding: 10px 16px; border-radius: 12px;
  font-size: 14px; z-index: 20; pointer-events: none; transition: all .25s; max-width: calc(100% - 32px); text-align: center; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.fade-in { animation: fade .25s ease both; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } }