/* Type Tune: neon dark by default, with a light theme (.kf-light). Everything is HTML except the arcade, the Tunes stage and the charts. */
.kf {
  --kf-font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --kf-bg: #050915; --kf-panel: #0b1430; --kf-panel2: #0f1a3b; --kf-line: #1c2b4a; --kf-text: #dfe9ff; --kf-strong: #fff; --kf-mute: #8aa3c4; --kf-dim: #4c5f80;
  --kf-accent: #55d6ff; --kf-accent-fill: rgba(85,214,255,.28); --kf-warm: #ffd166; --kf-good: #3dffb5; --kf-bad: #ff4f6d; --kf-raw: #6f84a3; --kf-grid: rgba(140,170,220,.12);
  --kf-untyped: #6c7fa6; --kf-ok: #e8f1ff; --kf-caret: #55d6ff; --kf-btn: #12204a;
  --f0: #ff4fd8; --f1: #a98bff; --f2: #55d6ff; --f3: #3dffb5; --f4: #9dff5a; --f5: #ffd166; --f6: #ff9f45; --f7: #ff5f6d; --f8: #8aa3c4;
  display: flex; flex-direction: column; color: var(--kf-text); font-family: var(--kf-font);
}
.kf.kf-light {
  --kf-bg: #f4f6fb; --kf-panel: #ffffff; --kf-panel2: #eef2fa; --kf-line: #d5ddec; --kf-text: #1d2740; --kf-strong: #0b1222; --kf-mute: #5b6a86; --kf-dim: #9aa6bd;
  --kf-accent: #0a84c6; --kf-accent-fill: rgba(10,132,198,.18); --kf-warm: #c27b00; --kf-good: #0f9d63; --kf-bad: #d92d4a; --kf-raw: #93a0b8; --kf-grid: rgba(30,50,90,.1);
  --kf-untyped: #9aa6bd; --kf-ok: #1d2740; --kf-caret: #0a84c6; --kf-btn: #e7edf8;
  --f0: #d63ab4; --f1: #7a5ce0; --f2: #1e9bd6; --f3: #10a873; --f4: #5fae1c; --f5: #c99400; --f6: #e07320; --f7: #e0475a; --f8: #7d8aa3;
}
.kf-stage { position: relative; min-height: 520px; background: var(--kf-bg); outline: none; display: flex; flex-direction: column; overflow: hidden; }
.kf-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.kf svg { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.kf kbd { display: inline-block; min-width: 1.5em; padding: 1px 6px; border-radius: 5px; background: var(--kf-panel2); border: 1px solid var(--kf-line); border-bottom-width: 2px; color: var(--kf-strong); font: 700 .86em/1.4 ui-monospace, "SF Mono", Menlo, Consolas, monospace; text-align: center; }
.kf kbd.bi { color: var(--kf-warm); }

/* top bar: tabs and tools */
.kf-top { display: flex; align-items: center; gap: 8px; padding: 10px 10px 0; flex: none; }
.kf-tabs { display: flex; gap: 4px; flex: 1 1 auto; min-width: 0; overflow-x: auto; scrollbar-width: none; padding: 2px; }
.kf-tabs::-webkit-scrollbar { display: none; }
.kf-tab { position: relative; flex: none; display: flex; align-items: center; gap: 7px; height: 40px; padding: 0 13px; border-radius: 11px; border: 1px solid transparent; background: transparent; color: var(--kf-mute);
  font: 700 14px/1 var(--kf-font); font-family: inherit; cursor: pointer; touch-action: manipulation; transition: color .15s, background .15s, border-color .15s; }
.kf-tab svg { width: 18px; height: 18px; }
.kf-tab[aria-selected="true"] { color: var(--kf-strong); background: var(--kf-panel); border-color: var(--kf-line); box-shadow: inset 0 -2px 0 var(--kf-accent); }
@media (hover: hover) { .kf-tab:hover { color: var(--kf-strong); } }
.kf-tab:focus-visible { outline: 2px solid var(--kf-accent); outline-offset: 1px; }
.kf-dot { position: absolute; top: 6px; right: 6px; width: 7px; height: 7px; border-radius: 50%; background: var(--kf-bad); box-shadow: 0 0 8px var(--kf-bad); }
.kf-dot[hidden] { display: none; }
.kf-tools { display: flex; gap: 6px; flex: none; }
.kf-brand { display: none; }
.kf-tool { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 11px; border: 1px solid var(--kf-line); background: var(--kf-panel); color: var(--kf-mute); cursor: pointer; padding: 0; touch-action: manipulation; }
.kf-tool.small { width: 34px; height: 34px; font-size: 12px; font-weight: 900; color: var(--kf-text); }
.kf-tool svg { width: 19px; height: 19px; }
.kf-tool .spk { fill: currentColor; stroke: none; }
@media (hover: hover) { .kf-tool:hover { color: var(--kf-strong); border-color: var(--kf-accent); } }
.kf-tool:focus-visible { outline: 2px solid var(--kf-accent); outline-offset: 2px; }
#kf-sound .off { display: none; } #kf-sound[aria-pressed="true"] .on { display: none; } #kf-sound[aria-pressed="true"] .off { display: inline; } #kf-sound[aria-pressed="true"] { color: var(--kf-dim); }
#kf-music { color: var(--kf-accent); } #kf-music .off { display: none; } #kf-music[aria-pressed="true"] { color: var(--kf-dim); } #kf-music[aria-pressed="true"] .off { display: inline; }

/* the view */
.kf-view { flex: 1 1 auto; min-height: 0; padding: 12px clamp(10px, 3vw, 28px) 18px; display: flex; flex-direction: column; }
.kf-view > * { width: 100%; max-width: 960px; margin: 0 auto; }
.kf-input { position: absolute; left: 0; top: 0; width: 2px; height: 2px; opacity: 0; border: 0; padding: 0; margin: 0; font-size: 16px; color: transparent; background: transparent; caret-color: transparent; z-index: 0; pointer-events: none; }
.kf-sp { flex: 1 1 auto; }
.kf-k { font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--kf-mute); }
.kf-tip { color: var(--kf-mute); font-size: 13.5px; line-height: 1.45; margin: 10px 0 0; text-align: center; }
.kf-tip b { color: var(--kf-strong); }
.kf-note { margin: 0 0 12px; padding: 10px 14px; border-radius: 12px; background: rgba(255,79,109,.1); border: 1px solid rgba(255,79,109,.4); color: var(--kf-text); font-size: 14px; }
.kf-empty { color: var(--kf-mute); font-size: 14px; }

/* option bar */
.kf-opts { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: 14px; }
.kf-seg { display: inline-flex; gap: 2px; padding: 3px; border-radius: 12px; background: var(--kf-panel); border: 1px solid var(--kf-line); }
.kf-seg button { height: 34px; min-width: 40px; padding: 0 11px; border: 0; border-radius: 9px; background: transparent; color: var(--kf-mute); font: 700 13.5px/1 var(--kf-font); font-family: inherit; cursor: pointer; touch-action: manipulation; white-space: nowrap; }
.kf-seg button[aria-pressed="true"] { background: var(--kf-accent); color: #04121a; }
.kf-light .kf-seg button[aria-pressed="true"] { color: #fff; }
@media (hover: hover) { .kf-seg button:hover:not([aria-pressed="true"]) { color: var(--kf-strong); } }
.kf-seg button:focus-visible { outline: 2px solid var(--kf-accent); outline-offset: 1px; }
.kf-tg button[aria-pressed="true"] { background: rgba(255,209,102,.18); color: var(--kf-warm); box-shadow: inset 0 0 0 1px var(--kf-warm); }

/* live bar */
.kf-livebar { display: flex; align-items: baseline; gap: 16px; min-height: 34px; padding: 0 4px; }
.kf-lv-main { font-size: 28px; font-weight: 900; color: var(--kf-accent); font-variant-numeric: tabular-nums; min-width: 2.6em; }
.kf-lv { font-size: 14px; color: var(--kf-mute); font-variant-numeric: tabular-nums; }
.kf-lv b { font-size: 19px; color: var(--kf-strong); margin-right: 2px; }
.kf-lv[hidden] { display: none; }

/* the typing box */
.kf-box { --fs: clamp(20px, 2.6vw, 27px); position: relative; padding: 6px 2px 2px; cursor: text; }
.kf-box.big { --fs: clamp(22px, 3vw, 32px); }
.kf-lines { position: relative; height: calc(var(--fs) * 1.62 * 3); overflow: hidden; }
.kf-words { font: 500 var(--fs)/1.62 ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, "Liberation Mono", monospace; color: var(--kf-untyped); letter-spacing: .01em;
  transition: transform .14s ease-out; word-break: keep-all; overflow-wrap: normal; user-select: none; -webkit-user-select: none; }
.kf-words .kw { display: inline-block; white-space: nowrap; border-bottom: 2px solid transparent; line-height: 1.35; }
.kf-words .kw.err { border-bottom-color: var(--kf-bad); }
.kf-words i { font-style: normal; transition: color .06s; }
.kf-words i.ok { color: var(--kf-ok); }
.kf-words i.bad { color: var(--kf-bad); text-shadow: 0 0 10px rgba(255,79,109,.35); }
.kf-words i.ex { color: #b3324a; opacity: .9; }
.kf-caret { position: absolute; left: 0; top: 0; width: 2.5px; border-radius: 2px; background: var(--kf-caret); box-shadow: 0 0 10px var(--kf-caret); transition: transform .085s ease-out; animation: kf-blink 1.05s steps(1) infinite; pointer-events: none; }
.kf-box.typing .kf-caret { animation: none; }
@media (prefers-reduced-motion: reduce) { .kf-caret, .kf-words { transition: none; } }
@keyframes kf-blink { 50% { opacity: 0; } }
.kf-box.blurred .kf-lines { filter: blur(3px); opacity: .55; }
.kf-box.blurred .kf-caret { display: none; }
.kf-focus { position: absolute; inset: 0; display: grid; place-items: center; background: transparent; border: 0; color: var(--kf-strong); font: 700 16px/1.3 var(--kf-font); font-family: inherit; cursor: pointer; z-index: 2; }
.kf-focus span { padding: 10px 18px; border-radius: 999px; background: var(--kf-panel); border: 1px solid var(--kf-accent); box-shadow: 0 8px 30px rgba(0,0,0,.35); }
.kf-focus[hidden] { display: none; }
.kf-box.shake { animation: kf-shake .22s; }
@keyframes kf-shake { 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }

.kf-under { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.kf-under .kf-tip { margin: 0; }
.kf-chip { display: inline-flex; align-items: center; gap: 7px; height: 34px; padding: 0 12px; border-radius: 999px; border: 1px solid var(--kf-line); background: var(--kf-panel); color: var(--kf-mute); font: 700 13px/1 var(--kf-font); font-family: inherit; cursor: pointer; touch-action: manipulation; white-space: nowrap; }
.kf-chip svg { width: 16px; height: 16px; }
.kf-chip kbd { font-size: 11px; }
@media (hover: hover) { .kf-chip:hover { color: var(--kf-strong); border-color: var(--kf-accent); } }
.kf-chip:focus-visible { outline: 2px solid var(--kf-accent); outline-offset: 2px; }
@media (pointer: coarse) { .kf-chip kbd, .kf-btn kbd { display: none; } }

/* buttons */
.kf-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 16px; border-radius: 12px; border: 1px solid var(--kf-line); background: var(--kf-btn); color: var(--kf-strong);
  font: 700 14.5px/1.1 var(--kf-font); font-family: inherit; cursor: pointer; text-decoration: none; touch-action: manipulation; transition: border-color .15s, filter .15s, transform .08s; white-space: nowrap; }
.kf-btn svg { width: 18px; height: 18px; }
.kf-btn kbd { font-size: 11px; opacity: .8; }
.kf-btn.primary { background: linear-gradient(135deg, #3dffb5, #55d6ff); color: #03141c; border-color: transparent; box-shadow: 0 6px 22px rgba(85,214,255,.25); }
.kf-btn.primary kbd { background: rgba(255,255,255,.35); color: #03141c; border-color: rgba(0,0,0,.15); }
.kf-btn.danger { color: var(--kf-bad); }
.kf-btn:disabled { opacity: .45; cursor: default; }
@media (hover: hover) { .kf-btn:hover:not(:disabled) { border-color: var(--kf-accent); filter: brightness(1.06); } }
.kf-btn:active:not(:disabled) { transform: translateY(1px); }
.kf-btn:focus-visible { outline: 2px solid var(--kf-accent); outline-offset: 2px; }
.kf-res-btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 16px; }

/* results */
.kf-res { animation: kf-up .25s ease-out; }
@keyframes kf-up { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.kf-res-top { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 10px 28px; justify-content: center; }
.kf-big { display: flex; flex-direction: column; line-height: 1; }
.kf-big b { font-size: clamp(54px, 9vw, 80px); font-weight: 900; color: var(--kf-accent); letter-spacing: -.03em; font-variant-numeric: tabular-nums; outline: none; text-shadow: 0 0 30px var(--kf-accent-fill); }
.kf-big.acc b { color: var(--kf-warm); text-shadow: none; }
.kf-mini { display: grid; grid-template-columns: repeat(2, auto); gap: 6px 22px; }
.kf-mini.center { display: flex; justify-content: center; gap: 26px; margin: 8px 0; }
.kf-mini span { display: flex; flex-direction: column; line-height: 1.15; }
.kf-mini i { font-style: normal; font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--kf-mute); }
.kf-mini b { font-size: 19px; color: var(--kf-strong); font-variant-numeric: tabular-nums; }
.kf-mini em { font-style: normal; } .kf-mini em.g { color: var(--kf-good); } .kf-mini em.r { color: var(--kf-bad); } .kf-mini em.y { color: #ff9f45; } .kf-mini em.m { color: var(--kf-mute); }
.kf-res-t { text-align: center; color: var(--kf-mute); font-size: 13.5px; margin: 10px 0 0; }
.kf-pb { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 10px auto 0; padding: 7px 14px; width: fit-content; border-radius: 999px; background: rgba(255,209,102,.14); border: 1px solid var(--kf-warm); color: var(--kf-warm); font-weight: 800; font-size: 14px; animation: kf-pop .5s cubic-bezier(.3,1.6,.5,1); }
.kf-pb svg { width: 17px; height: 17px; fill: currentColor; stroke: none; }
@keyframes kf-pop { from { transform: scale(.6); opacity: 0; } to { transform: none; opacity: 1; } }
.kf-pbline { text-align: center; color: var(--kf-mute); font-size: 13.5px; margin: 8px 0 0; }
.kf-pbline b { color: var(--kf-strong); }
.kf-chart-wrap { position: relative; margin-top: 14px; padding: 10px 10px 4px; border-radius: 14px; background: var(--kf-panel); border: 1px solid var(--kf-line); }
.kf-chart { display: block; width: 100%; height: 150px; }
.kf-chart-wrap.tall .kf-chart { height: 190px; }
.kf-legend { display: flex; gap: 14px; justify-content: flex-end; font-size: 11.5px; color: var(--kf-mute); padding: 2px 4px 4px; }
.kf-legend span::before { content: ''; display: inline-block; width: 14px; height: 3px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.kf-legend .l1::before { background: var(--kf-accent); } .kf-legend .l2::before { background: var(--kf-raw); } .kf-legend .l3::before { background: var(--kf-bad); width: 8px; } .kf-legend .l4::before { background: var(--kf-warm); }
.kf-heat { margin-top: 12px; }
.kf-heat > .kf-k { display: block; margin-bottom: 6px; } .kf-heat small { text-transform: none; letter-spacing: 0; font-weight: 600; }
.kf-weak { text-align: center; color: var(--kf-mute); font-size: 14px; margin: 10px 0 0; }
.kf-weak kbd { margin: 0 2px 0 8px; }

/* on-screen keyboard */
.kf-kb { --u: clamp(22px, 5.6vw, 44px); display: flex; flex-direction: column; align-items: center; gap: calc(var(--u) * .1); margin: 16px auto 0; user-select: none; }
.kf-kb.mini { --u: clamp(19px, 5.4vw, 34px); margin-top: 4px; }
.kf-kr { display: flex; gap: calc(var(--u) * .1); }
.kk { position: relative; display: grid; place-items: center; width: calc(var(--u) * var(--w, 1)); height: calc(var(--u) * .92); border-radius: calc(var(--u) * .2); background: var(--kf-panel);
  border: 1px solid var(--kf-line); border-bottom: 3px solid color-mix(in srgb, var(--fc, var(--kf-line)) 70%, transparent); color: var(--kf-mute); font: 700 calc(var(--u) * .36)/1 ui-monospace, Menlo, Consolas, monospace; transition: background .12s, transform .08s; }
.kk.mod { font-family: inherit; font-size: calc(var(--u) * .27); color: var(--kf-dim); }
.kk.home::after { content: ''; position: absolute; bottom: 18%; width: 22%; height: 2px; border-radius: 1px; background: currentColor; opacity: .5; }
.kk.f0 { --fc: var(--f0); } .kk.f1 { --fc: var(--f1); } .kk.f2 { --fc: var(--f2); } .kk.f3 { --fc: var(--f3); } .kk.f4 { --fc: var(--f4); } .kk.f5 { --fc: var(--f5); } .kk.f6 { --fc: var(--f6); } .kk.f7 { --fc: var(--f7); } .kk.f8 { --fc: var(--f8); }
.kk.next { background: var(--fc, var(--kf-accent)); color: #06101d; border-color: var(--fc, var(--kf-accent)); box-shadow: 0 0 18px var(--fc, var(--kf-accent)); transform: translateY(-1px); }
.kk.mod.next { --fc: var(--kf-warm); }
.kk.miss { animation: kf-miss .35s; } @keyframes kf-miss { 30% { background: var(--kf-bad); color: #fff; } }
.kf-kb.heat .kk { border-bottom-color: var(--kf-line); }
.kf-kb.heat .kk.hot { background: color-mix(in srgb, var(--heat) 30%, var(--kf-panel)); border-color: color-mix(in srgb, var(--heat) 70%, transparent); color: var(--kf-strong); }
.kf-kb.heat .kk.mod { opacity: .4; }

/* practice */
.kf-focusbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.kf-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.kf-chips kbd { font-size: 16px; padding: 3px 9px; }
.kf-practice .kf-tip { text-align: left; margin: 6px 0 10px; }
.kf-focuslist { list-style: none; margin: 12px auto 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.kf-focuslist li { display: flex; align-items: center; gap: 10px; padding: 6px 12px; border-radius: 10px; background: var(--kf-panel); border: 1px solid var(--kf-line); font-size: 13px; color: var(--kf-mute); }
.kf-focuslist .up { color: var(--kf-good); font-weight: 700; }

/* lessons */
.kf-lhead { display: flex; gap: 16px; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.kf-lhead h3 { margin: 0 0 4px; font-size: 21px; color: var(--kf-strong); }
.kf-lhead p { margin: 0; color: var(--kf-mute); font-size: 14px; line-height: 1.45; max-width: 620px; }
.kf-stars-total { display: flex; align-items: center; gap: 6px; color: var(--kf-warm); font-size: 15px; flex: none; }
.kf-stars-total svg { width: 22px; height: 22px; fill: currentColor; stroke: none; }
.kf-stars-total b { font-size: 24px; } .kf-stars-total span { color: var(--kf-mute); }
.kf-lgrid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 8px; }
.kf-lcard { width: 100%; display: flex; align-items: center; gap: 12px; padding: 10px 12px; min-height: 60px; border-radius: 13px; border: 1px solid var(--kf-line); background: var(--kf-panel); color: var(--kf-text); text-align: left; cursor: pointer; font: inherit; touch-action: manipulation; }
.kf-lcard:disabled { opacity: .45; cursor: default; }
.kf-lcard.next { border-color: var(--kf-accent); box-shadow: 0 0 0 1px var(--kf-accent), 0 0 22px var(--kf-accent-fill); }
@media (hover: hover) { .kf-lcard:hover:not(:disabled) { border-color: var(--kf-accent); } }
.kf-lcard:focus-visible { outline: 2px solid var(--kf-accent); outline-offset: 2px; }
.kf-ln { flex: none; display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: var(--kf-panel2); font-weight: 900; color: var(--kf-accent); }
.kf-lcard.done .kf-ln { background: var(--kf-good); color: #04121a; }
.kf-lt { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.kf-lt b { font-size: 14.5px; color: var(--kf-strong); }
.kf-lt small { color: var(--kf-mute); font-size: 12px; }
.kf-lt kbd { font-size: 11px; padding: 0 4px; margin-right: 2px; }
.kf-ls { flex: none; display: flex; gap: 1px; color: var(--kf-dim); }
.kf-ls svg { width: 15px; height: 15px; }
.kf-ls i.on, .kf-lstars i.on { color: var(--kf-warm); }
.kf-ls i.on svg, .kf-lstars i.on svg { fill: currentColor; stroke: none; }
.kf-lbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.kf-lbar > b { color: var(--kf-strong); font-size: 15px; }
.kf-ltip { margin: 2px 0 2px; color: var(--kf-text); font-size: 14px; line-height: 1.45; }
.kf-finger { min-height: 22px; margin: 0 0 4px; color: var(--kf-mute); font-size: 13.5px; display: flex; align-items: center; gap: 7px; }
.kf-fdot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.kf-fdot.f0 { background: var(--f0); } .kf-fdot.f1 { background: var(--f1); } .kf-fdot.f2 { background: var(--f2); } .kf-fdot.f3 { background: var(--f3); } .kf-fdot.f4 { background: var(--f4); } .kf-fdot.f5 { background: var(--f5); } .kf-fdot.f6 { background: var(--f6); } .kf-fdot.f7 { background: var(--f7); } .kf-fdot.f8 { background: var(--f8); }
.kf-lstars { text-align: center; margin-top: 10px; }
.kf-lstars i { display: inline-block; color: var(--kf-dim); }
.kf-lstars svg { width: 34px; height: 34px; }
.kf-lstars p { margin: 4px 0 2px; font-weight: 700; color: var(--kf-strong); }
.kf-lstars small { color: var(--kf-mute); font-size: 12px; }

/* daily */
.kf-dcard { padding: 18px; border-radius: 18px; background: var(--kf-panel); border: 1px solid var(--kf-line); box-shadow: 0 10px 40px rgba(0,0,0,.25); }
.kf-dhead { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.kf-dbadge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; background: rgba(255,209,102,.14); color: var(--kf-warm); font-weight: 800; font-size: 14px; }
.kf-dbadge svg { width: 17px; height: 17px; }
.kf-dtext { font: 500 clamp(16px, 2vw, 19px)/1.6 ui-monospace, "SF Mono", Menlo, Consolas, monospace; color: var(--kf-text); margin: 14px 0; }
.kf-dstats { display: flex; flex-wrap: wrap; gap: 10px 26px; align-items: center; }
.kf-dstats > span { display: flex; flex-direction: column; }
.kf-dstats i { font-style: normal; font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--kf-mute); }
.kf-dstats b { font-size: 17px; color: var(--kf-strong); display: inline-flex; align-items: center; gap: 4px; }
.kf-dstats b svg { width: 16px; height: 16px; color: #ff9f45; }
.kf-dbest { font-size: 13.5px; color: var(--kf-mute); }
.kf-dline { text-align: center; color: var(--kf-mute); font-size: 14px; margin: 10px 0 0; }
.kf-dline b { color: var(--kf-strong); }

/* arcade */
.kf-ahero h3, .kf-rcard h3 { display: flex; align-items: center; gap: 8px; margin: 0 0 6px; font-size: 21px; color: var(--kf-strong); }
.kf-rcard h3 svg { width: 21px; height: 21px; color: var(--kf-accent); }
.kf-ahero p { color: var(--kf-mute); line-height: 1.5; margin: 0 0 14px; font-size: 14.5px; max-width: 720px; }
.kf-alevels { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; }
.kf-alv { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; padding: 14px; border-radius: 15px; border: 1px solid var(--kf-line); background: var(--kf-panel); color: var(--kf-text); cursor: pointer; font: inherit; text-align: left; position: relative; overflow: hidden; touch-action: manipulation; }
.kf-alv::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--lv); box-shadow: 0 0 14px var(--lv); }
.kf-alv b { font-size: 19px; color: var(--lv); }
.kf-alv small { color: var(--kf-mute); font-size: 12.5px; }
.kf-alv span { color: var(--kf-strong); font-size: 13.5px; font-weight: 700; margin-top: 4px; }
.kf-alv.sel { border-color: var(--lv); }
@media (hover: hover) { .kf-alv:hover { border-color: var(--lv); transform: translateY(-1px); } }
.kf-alv:focus-visible { outline: 2px solid var(--lv); outline-offset: 2px; }
.kf-apowers { list-style: none; margin: 14px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.kf-apowers li { display: flex; align-items: center; gap: 7px; padding: 5px 11px 5px 6px; border-radius: 999px; background: var(--kf-panel); border: 1px solid var(--kf-line); font-size: 12.5px; color: var(--kf-mute); }
.kf-apowers i { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--pc); color: #04121a; font-style: normal; font-weight: 900; font-size: 12px; box-shadow: 0 0 10px var(--pc); }
.kf-apowers b { color: var(--pc); font-family: ui-monospace, Menlo, Consolas, monospace; }
.kf[data-view="arcade"] .kf-view { padding: 8px 8px 10px; }
.kf-arena { position: relative; flex: 1 1 auto; min-height: 380px; height: min(72vh, 640px); border-radius: 14px; overflow: hidden; border: 1px solid var(--kf-line); background: #04030f; cursor: text; touch-action: manipulation; max-width: none !important; }
.kf-acv { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.kf-ahud { position: absolute; left: 0; right: 0; top: 0; display: flex; align-items: center; gap: 14px; padding: 8px 10px 14px; z-index: 2; pointer-events: none; color: #dfe9ff; background: linear-gradient(180deg, rgba(4,3,15,.92), rgba(4,3,15,.6) 70%, rgba(4,3,15,0)); }
.kf-ahud > * { pointer-events: auto; }
.kf-ah { display: flex; flex-direction: column; line-height: 1.05; }
.kf-ah i { font-style: normal; font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: #8aa3c4; }
.kf-ah b { font-size: 20px; font-weight: 900; color: #fff; font-variant-numeric: tabular-nums; }
.kf-ah.combo.hot b { color: #55d6ff; text-shadow: 0 0 12px #55d6ff; }
.kf-arena.doubled .kf-ah:first-child b { color: #ffd166; text-shadow: 0 0 12px #ffd166; }
.kf-shields { display: flex; gap: 4px; }
.kf-shields i { width: 13px; height: 15px; clip-path: polygon(50% 0, 100% 18%, 100% 55%, 50% 100%, 0 55%, 0 18%); background: rgba(85,214,255,.18); }
.kf-shields i.on { background: #3dffb5; box-shadow: 0 0 8px #3dffb5; }
.kf-afeed { position: absolute; left: 50%; bottom: 10px; transform: translateX(-50%); z-index: 2; padding: 6px 14px; border-radius: 10px; background: rgba(6,10,26,.85); border: 1px solid #55d6ff; font: 700 18px/1.2 ui-monospace, Menlo, Consolas, monospace; color: #f2f6ff; pointer-events: none; white-space: nowrap; max-width: 90%; overflow: hidden; }
.kf-afeed .ok { color: #55d6ff; }
.kf-afeed[hidden] { display: none; }
.kf-aover { position: absolute; inset: 0; z-index: 4; display: grid; place-items: center; padding: 12px; background: radial-gradient(ellipse at center, rgba(3,6,16,.55), rgba(3,5,12,.86)); animation: kf-up .2s ease-out; }
.kf-aover[hidden] { display: none; }
.kf-aocard { width: min(440px, 100%); padding: 20px; border-radius: 18px; background: #0b1430; border: 1px solid #1c2b4a; text-align: center; color: #dfe9ff; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.kf-ascore { display: block; font-size: 52px; font-weight: 900; color: #55d6ff; letter-spacing: -.02em; outline: none; text-shadow: 0 0 26px rgba(85,214,255,.4); }
.kf-aocard .kf-mini { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px 18px; margin-top: 12px; }
.kf-aocard .kf-mini b { color: #fff; } .kf-aocard .kf-tip { color: #8aa3c4; }
.kf-focus.arena span { background: rgba(11,20,48,.9); color: #fff; }

/* race */
.kf-rcards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
.kf-rcard { padding: 16px; border-radius: 16px; background: var(--kf-panel); border: 1px solid var(--kf-line); display: flex; flex-direction: column; gap: 10px; }
.kf-rcard p { margin: 0; color: var(--kf-mute); font-size: 14px; line-height: 1.45; }
.kf-rcard p b { color: var(--kf-strong); }
.kf-rcard > .kf-btn { align-self: flex-start; }
.kf-rcard .kf-tip { text-align: left; margin: 0; font-size: 12.5px; }
.kf-rcard .kf-res-btns { justify-content: flex-start; margin-top: 0; }
.kf-field { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.kf-field .kf-k { width: 54px; }
.kf-live { display: inline-flex; align-items: center; gap: 5px; padding: 2px 8px; border-radius: 999px; background: rgba(3,20,28,.25); font-size: 12px; }
.kf-live i { width: 7px; height: 7px; border-radius: 50%; background: #0b6b3a; box-shadow: 0 0 6px #0b6b3a; animation: kf-blink 1.4s infinite; }
.kf-live[hidden] { display: none; }
.kf-join { display: flex; gap: 8px; }
.kf-join input { flex: 1 1 auto; min-width: 0; height: 44px; padding: 0 12px; border-radius: 12px; border: 1px solid var(--kf-line); background: var(--kf-bg); color: var(--kf-strong); font: 700 16px/1 ui-monospace, Menlo, Consolas, monospace; letter-spacing: .1em; text-transform: uppercase; }
.kf-join input:focus { outline: 2px solid var(--kf-accent); outline-offset: 1px; }
.kf-track { display: flex; flex-direction: column; gap: 6px; padding: 10px 12px; border-radius: 16px; background: linear-gradient(180deg, var(--kf-panel), var(--kf-panel2)); border: 1px solid var(--kf-line); margin-bottom: 10px; }
.kf-lane { display: grid; grid-template-columns: minmax(70px, 120px) 1fr 54px; align-items: center; gap: 10px; }
.kf-lname { display: flex; flex-direction: column; min-width: 0; line-height: 1.1; }
.kf-lname b { font-size: 13.5px; color: var(--kf-strong); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kf-lname small { font-size: 11px; color: var(--kf-mute); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kf-lane.me .kf-lname b { color: var(--c); }
.kf-ltrack { position: relative; height: 26px; border-radius: 8px; background: repeating-linear-gradient(90deg, transparent 0 18px, var(--kf-grid) 18px 20px); border-bottom: 1px dashed var(--kf-line); }
.kf-ship { --x: 0; position: absolute; left: calc(var(--x) * (100% - 34px)); top: 50%; width: 34px; height: 17px; transform: translateY(-50%); filter: drop-shadow(0 0 6px var(--c)); }
.kf-ship svg, .kf-rship svg { width: 100%; height: 100%; stroke: none; overflow: visible; }
.kf-lane.ghost .kf-ship { opacity: .55; }
.kf-flag { position: absolute; right: -2px; top: 2px; bottom: 2px; width: 4px; background: repeating-linear-gradient(180deg, var(--kf-strong) 0 4px, transparent 4px 8px); opacity: .5; border-radius: 2px; }
.kf-lwpm { font-size: 13px; font-weight: 800; color: var(--kf-mute); text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.kf-lane.done .kf-lwpm { color: var(--c); }
.kf-count { position: absolute; left: 0; right: 0; top: 40%; text-align: center; font-size: clamp(54px, 12vw, 110px); font-weight: 900; color: var(--kf-strong); text-shadow: 0 0 40px var(--kf-accent); z-index: 5; pointer-events: none; animation: kf-pop .4s; }
.kf-count[hidden] { display: none; }
.kf-count.go { color: var(--kf-good); text-shadow: 0 0 40px var(--kf-good); }
.kf-race { position: relative; }
.kf-rres { text-align: center; animation: kf-up .25s ease-out; }
.kf-rplace { font-size: clamp(28px, 5vw, 40px); font-weight: 900; color: var(--kf-strong); margin: 4px 0; outline: none; }
.kf-rlist { list-style: none; margin: 10px auto 0; padding: 0; max-width: 560px; display: flex; flex-direction: column; gap: 6px; }
.kf-rlist li { display: grid; grid-template-columns: 34px 36px minmax(0, 1fr) auto; grid-template-rows: auto auto; align-items: center; column-gap: 8px; padding: 8px 12px; border-radius: 12px; background: var(--kf-panel); border: 1px solid var(--kf-line); text-align: left; }
.kf-rlist li.me { border-color: var(--c); box-shadow: 0 0 0 1px var(--c); }
.kf-rp { grid-row: 1 / 3; font-size: 20px; font-weight: 900; color: var(--kf-mute); text-align: center; }
.kf-rship { grid-row: 1 / 3; width: 32px; height: 16px; display: inline-block; filter: drop-shadow(0 0 5px var(--c)); }
.kf-rlist b { color: var(--kf-strong); font-size: 14.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kf-rlist small { grid-column: 3; font-size: 11.5px; color: var(--kf-mute); }
.kf-rt { grid-column: 4; grid-row: 1 / 3; font-size: 13.5px; font-weight: 700; color: var(--kf-text); font-variant-numeric: tabular-nums; }
.kf-rlobby .kf-lbar { margin-bottom: 12px; }
.kf-code { display: flex; align-items: center; gap: 10px 14px; flex-wrap: wrap; padding: 14px; border-radius: 16px; background: var(--kf-panel); border: 1px solid var(--kf-line); }
.kf-code b { font: 900 30px/1 ui-monospace, Menlo, Consolas, monospace; letter-spacing: .12em; color: var(--kf-accent); }
.kf-seats { list-style: none; margin: 12px 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 8px; }
.kf-seats li { display: grid; grid-template-columns: 38px 1fr; grid-template-rows: auto auto; align-items: center; column-gap: 8px; min-height: 54px; padding: 8px 12px; border-radius: 12px; background: var(--kf-panel); border: 1px solid var(--kf-line); }
.kf-seats li .kf-rship { grid-row: 1 / 3; --c: var(--kf-accent); }
.kf-seats li b { color: var(--kf-strong); font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kf-seats li small { color: var(--kf-mute); font-size: 11.5px; }
.kf-seats li.empty { border-style: dashed; color: var(--kf-dim); display: flex; justify-content: center; font-size: 13px; }
.kf-seats li.away { opacity: .55; }
.kf-auto { color: var(--kf-mute); font-size: 14.5px; margin: 0 0 6px; align-self: center; }
.kf-auto b { color: var(--kf-accent); font-size: 18px; }
.kf-net { font-size: 12px; color: var(--kf-warm); }
.kf-net[hidden] { display: none; }

/* sheets */
.kf-overlay { position: absolute; inset: 0; z-index: 20; display: flex; align-items: flex-start; justify-content: center; padding: 14px; overflow: auto; background: rgba(2,5,14,.72); animation: kf-fade .15s ease-out; }
.kf-light .kf-overlay { background: rgba(20,30,60,.35); }
.kf-overlay[hidden] { display: none; }
@keyframes kf-fade { from { opacity: 0; } }
.kf-sheet { position: relative; width: min(520px, 100%); margin: auto 0; padding: 20px; border-radius: 18px; background: var(--kf-panel); border: 1px solid var(--kf-line); box-shadow: 0 24px 70px rgba(0,0,0,.5); outline: none; animation: kf-up .2s ease-out; }
.kf-sheet.wide { width: min(780px, 100%); }
.kf-sheet h2 { margin: 0 40px 12px 0; font-size: 21px; color: var(--kf-strong); outline: none; text-transform: none; letter-spacing: 0; }
.kf-sheet h3 { margin: 18px 0 8px; font-size: 13px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--kf-mute); }
.kf-x { position: absolute; top: 12px; right: 12px; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; border: 0; background: var(--kf-panel2); color: var(--kf-mute); cursor: pointer; }
.kf-x svg { width: 18px; height: 18px; }
.kf-set { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--kf-line); cursor: pointer; position: relative; }
.kf-set.inline { border: 0; padding: 4px 0; max-width: 420px; }
.kf-set > span { flex: 1 1 auto; display: flex; flex-direction: column; }
.kf-set b { color: var(--kf-strong); font-size: 15px; } .kf-set small { color: var(--kf-mute); font-size: 12.5px; }
.kf-set input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.kf-sw { flex: none; position: relative; width: 44px; height: 26px; border-radius: 13px; background: var(--kf-line); transition: background .15s; }
.kf-sw::after { content: ''; position: absolute; left: 3px; top: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; transition: transform .15s; }
.kf-set input:checked + .kf-sw { background: var(--kf-accent); }
.kf-set input:checked + .kf-sw::after { transform: translateX(18px); }
.kf-set input:focus-visible + .kf-sw { outline: 2px solid var(--kf-accent); outline-offset: 2px; }
.kf-set input:disabled + .kf-sw { opacity: .5; }
.kf-keys { color: var(--kf-mute); font-size: 13.5px; line-height: 2; margin: 0; }
.kf-ptot { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.kf-ptot span { display: flex; flex-direction: column; align-items: center; padding: 10px 4px; border-radius: 12px; background: var(--kf-panel2); }
.kf-ptot b { font-size: 22px; color: var(--kf-strong); } .kf-ptot i { font-style: normal; font-size: 11px; color: var(--kf-mute); text-align: center; }
.kf-pcols { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.kf-klist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.kf-klist li { display: grid; grid-template-columns: 44px 1fr auto; align-items: center; gap: 8px; font-size: 12px; color: var(--kf-mute); }
.kf-klist li.kf-empty { display: block; }
.kf-bar { height: 8px; border-radius: 4px; background: var(--kf-panel2); overflow: hidden; }
.kf-bar i { display: block; height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--kf-warm), var(--kf-bad)); }
.kf-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.kf-table th { text-align: left; font-size: 11px; color: var(--kf-mute); text-transform: uppercase; letter-spacing: .08em; padding: 4px 6px; }
.kf-table td { padding: 6px; border-top: 1px solid var(--kf-line); }
.kf-table b { color: var(--kf-accent); }
.kf-toast { position: absolute; left: 50%; bottom: 16px; transform: translateX(-50%); z-index: 30; max-width: calc(100% - 24px); padding: 10px 16px; border-radius: 12px; background: var(--kf-panel); border: 1px solid var(--kf-accent); color: var(--kf-strong); font-size: 14px; box-shadow: 0 10px 30px rgba(0,0,0,.4); animation: kf-up .2s ease-out; transition: opacity .25s; }
.kf-toast.out { opacity: 0; }
.kf-toast[hidden] { display: none; }

/* ---------- Tunes: masterpieces you play by typing ---------- */
.kf-tab.tunes svg { color: #ff5fd8; }
.kf-tab.tunes[aria-selected="true"] { box-shadow: inset 0 -2px 0 #ff5fd8; }
/* the piece playing behind a test (click for another) */
.kf-np { display: inline-flex; align-items: center; gap: 6px; max-width: 46%; height: 28px; padding: 0 10px; border-radius: 999px; border: 1px solid var(--kf-line); background: var(--kf-panel); color: var(--kf-mute); font: 700 12.5px/1 var(--kf-font); font-family: inherit; cursor: pointer; align-self: center; }
.kf-np[hidden] { display: none; }
.kf-np svg { width: 14px; height: 14px; flex: none; color: #ff5fd8; }
.kf-np span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (hover: hover) { .kf-np:hover { color: var(--kf-strong); border-color: #ff5fd8; } }
/* a letter that starts a note: a line in the note's colour */
.kf-words i.n { position: relative; }
.kf-words i.n::after { content: ''; position: absolute; left: 12%; right: 12%; bottom: .06em; height: 3px; border-radius: 2px; background: var(--nc); opacity: .7; box-shadow: 0 0 6px var(--nc); }
.kf-words i.n.ok::after { opacity: .22; box-shadow: none; }
.kf-words i.n.bad::after { background: var(--kf-bad); }

.tt-hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 14px; }
.tt-hero-t { flex: 1 1 380px; }
.tt-hero h3 { display: flex; align-items: center; gap: 10px; margin: 0 0 6px; font-size: 22px; color: var(--kf-strong); }
.tt-hero h3 svg { width: 26px; height: 26px; color: #ff5fd8; filter: drop-shadow(0 0 8px rgba(255,95,216,.6)); }
.tt-hero p { margin: 0; color: var(--kf-mute); font-size: 14.5px; line-height: 1.5; max-width: 640px; }
.tt-hero-b { display: flex; align-items: center; gap: 14px; }
.tt-total { display: inline-flex; align-items: center; gap: 5px; color: var(--kf-warm); }
.tt-total svg { width: 20px; height: 20px; fill: currentColor; stroke: none; }
.tt-total b { font-size: 20px; } .tt-total span { color: var(--kf-mute); font-size: 13px; }
.tt-levels { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.tt-lv { position: relative; display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 11px 12px; border-radius: 13px; border: 1px solid var(--kf-line); background: var(--kf-panel); color: var(--kf-text); font: inherit; cursor: pointer; text-align: left; overflow: hidden; touch-action: manipulation; }
.tt-lv::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--lv); box-shadow: 0 0 12px var(--lv); opacity: .55; }
.tt-lv b { font-size: 15.5px; color: var(--lv); }
.tt-lv small { font-size: 12px; color: var(--kf-mute); }
.tt-lv.sel { border-color: var(--lv); box-shadow: 0 0 0 1px var(--lv), 0 0 20px color-mix(in srgb, var(--lv) 28%, transparent); }
.tt-lv.sel::before { opacity: 1; }
@media (hover: hover) { .tt-lv:hover { border-color: var(--lv); } }
.tt-lv:focus-visible { outline: 2px solid var(--lv); outline-offset: 2px; }
.tt-lvblurb { margin: 8px 2px 12px; color: var(--kf-mute); font-size: 13.5px; }
.tt-opts { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.tt-opts .kf-seg { flex-wrap: wrap; }
.tt-songs { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 8px; }
.tt-song { width: 100%; display: flex; align-items: center; gap: 11px; padding: 10px 12px; min-height: 62px; border-radius: 13px; border: 1px solid var(--kf-line); background: var(--kf-panel); color: var(--kf-text); text-align: left; cursor: pointer; font: inherit; touch-action: manipulation; transition: border-color .15s, transform .15s; }
@media (hover: hover) { .tt-song:hover { border-color: var(--sc); transform: translateY(-1px); box-shadow: 0 6px 20px color-mix(in srgb, var(--sc) 18%, transparent); } }
.tt-song:focus-visible { outline: 2px solid var(--sc); outline-offset: 2px; }
.tt-sic { flex: none; display: grid; place-items: center; width: 36px; height: 36px; border-radius: 11px; background: color-mix(in srgb, var(--sc) 16%, transparent); color: var(--sc); }
.tt-sic svg { width: 19px; height: 19px; filter: drop-shadow(0 0 6px var(--sc)); }
.tt-st { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.tt-st b { color: var(--kf-strong); font-size: 14.5px; line-height: 1.25; }
.tt-st small { color: var(--kf-mute); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tt-sm { flex: none; display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.tt-dots { display: flex; gap: 3px; } .tt-dots i { width: 6px; height: 6px; border-radius: 50%; background: var(--kf-line); } .tt-dots i.on { background: var(--sc); box-shadow: 0 0 6px var(--sc); }
.tt-stars { display: flex; gap: 1px; } .tt-stars i { color: var(--kf-dim); } .tt-stars svg { width: 14px; height: 14px; } .tt-stars i.on { color: var(--kf-warm); } .tt-stars i.on svg { fill: currentColor; stroke: none; }
.tt-kid { font-style: normal; font-size: 10px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: #ffd166; }
.kf-light .tt-lv b, .kf-light .tt-lvbadge { color: color-mix(in srgb, var(--lv) 58%, #1d2740); }
.kf-light .tt-kid { color: #b07800; }
.kf-light .tt-streak { color: #b07800; text-shadow: none; }

.tt-play .kf-lbar { margin-bottom: 8px; }
.tt-ptitle { display: flex; align-items: baseline; gap: 8px; min-width: 0; flex-wrap: wrap; }
.tt-ptitle b { color: var(--kf-strong); font-size: 15.5px; text-shadow: 0 0 14px color-mix(in srgb, var(--sc) 45%, transparent); }
.tt-ptitle small { color: var(--kf-mute); font-size: 13px; }
.tt-lvbadge { font-size: 12px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--lv); border: 1px solid var(--lv); border-radius: 999px; padding: 4px 10px; }
.tt-stage { position: relative; height: clamp(190px, 34vh, 300px); border-radius: 14px; overflow: hidden; border: 1px solid var(--kf-line); background: #05041a; margin-bottom: 10px; cursor: text; touch-action: manipulation; }
.tt-play.kids .tt-stage { height: clamp(200px, 36vh, 320px); }
.tt-cv { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.tt-streak { position: absolute; left: 12px; top: 10px; font-size: 13px; font-weight: 900; color: #ffd166; text-shadow: 0 0 10px rgba(255,209,102,.6); pointer-events: none; }
.tt-streak[hidden] { display: none; }
.tt-instname { font-size: 12.5px; font-weight: 700; color: var(--kf-mute); }
.tt-res { text-align: center; padding: 6px 0 4px; }
.tt-res-top h3 { margin: 4px 0 2px; font-size: 26px; color: var(--kf-strong); outline: none; }
.tt-res-top p { margin: 0 0 10px; color: var(--kf-mute); }
.tt-res-top p b { color: var(--kf-good); }
.tt-bigstars i { display: inline-block; color: var(--kf-dim); margin: 0 2px; }
.tt-bigstars svg { width: 42px; height: 42px; }
.tt-bigstars i.on { color: var(--kf-warm); filter: drop-shadow(0 0 10px rgba(255,209,102,.55)); animation: tt-pop .45s cubic-bezier(.2,1.6,.4,1) both; }
.tt-bigstars i.on:nth-child(2) { animation-delay: .15s; } .tt-bigstars i.on:nth-child(3) { animation-delay: .3s; }
.tt-bigstars i.on svg { fill: currentColor; stroke: none; }
@keyframes tt-pop { from { transform: scale(.2); opacity: 0; } to { transform: scale(1); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .tt-bigstars i.on { animation: none; } }
.tt-mini { display: flex !important; flex-wrap: wrap; justify-content: center; gap: 10px 24px !important; margin: 6px 0 4px; }
.tt-mini small { font-size: 12px; color: var(--kf-mute); font-weight: 700; }
.tt-about { max-width: 620px; margin: 14px auto 0; padding: 12px 14px; border-radius: 12px; background: var(--kf-panel); border: 1px solid var(--kf-line); color: var(--kf-text); font-size: 13.5px; line-height: 1.5; text-align: left; }
.tt-about small { display: block; margin-top: 6px; color: var(--kf-mute); font-size: 12px; }
.tt-res .kf-btn svg { width: 18px; height: 18px; }

/* phones */
@media (max-width: 640px) {
  .kf-stage { min-height: 460px; }
  .kf-top { padding: 8px 6px 0; gap: 6px; flex-wrap: wrap; }
  .kf-tools { order: 1; flex: 1 1 100%; align-items: center; }
  .kf-brand { display: block; margin-right: auto; padding-left: 6px; font-weight: 900; letter-spacing: .16em; font-size: 15px; background: linear-gradient(90deg, #3dffb5, #55d6ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .kf-tabs { order: 2; flex: 1 1 100%; gap: 2px; }
  .kf-tab { flex: 1 1 0; min-width: 0; flex-direction: column; justify-content: center; height: 52px; gap: 3px; padding: 0; font-size: 10px; letter-spacing: -.01em; }
  .kf-tab span { max-width: 100%; overflow: hidden; text-overflow: ellipsis; }
  .kf-tool { width: 36px; height: 36px; }
  .kf-view { padding: 10px 10px 14px; }
  .kf-opts { gap: 6px; }
  .kf-seg button { padding: 0 8px; min-width: 34px; font-size: 13px; }
  .kf-lv-main { font-size: 24px; }
  .kf-mini b { font-size: 17px; }
  .kf-ptot { grid-template-columns: repeat(2, 1fr); }
  .kf-pcols { grid-template-columns: 1fr; }
  .kf-lane { grid-template-columns: 64px 1fr 34px; gap: 6px; }
  .kf-lhead { flex-direction: column; align-items: flex-start; }
  .kf-arena { min-height: 300px; height: min(64vh, 560px); }
  .kf-ahud { gap: 10px; } .kf-ah b { font-size: 17px; }
  .tt-levels { grid-template-columns: repeat(3, 1fr); }
  .tt-lv { padding: 9px 10px; } .tt-lv b { font-size: 14px; }
  .tt-songs { grid-template-columns: 1fr; }
  .tt-hero h3 { font-size: 19px; }
  .tt-stage { height: clamp(160px, 28vh, 240px); }
  .kf-np { max-width: 60%; }
  .kf-sheet { padding: 16px; }
}
@media (max-width: 380px) { .kf-tab { font-size: 9.5px; letter-spacing: -.02em; } }
/* landscape phones: tighter vertical rhythm */
@media (max-height: 500px) and (orientation: landscape) {
  .kf-top { padding-top: 4px; } .kf-tab { height: 34px; } .kf-tool { width: 34px; height: 34px; }
  .kf-view { padding-top: 6px; }
  .kf-box { --fs: 19px; }
  .kf-opts { margin-bottom: 6px; }
  .kf-arena { min-height: 220px; height: calc(var(--rg-vh, 100vh) - 70px); }
}
/* full screen */
.stage.is-immersive .stage-body > .kf { min-height: 0; flex: 1 1 auto; }
.stage.is-immersive .kf-stage { flex: 1 1 auto; min-height: 0; }
.stage.is-immersive .kf-view { overflow: auto; }
.stage.is-immersive .kf-help { display: none; }
.kf-help .hint-touch { display: none; }
@media (pointer: coarse) { .kf-help .hint-kb { display: none; } .kf-help .hint-touch { display: inline; } }
.kf.kf-light .kf-help { background: var(--kf-panel2); color: var(--kf-mute); margin: 0; }