/* ──────────────────────────────────────────────────────────────────────────
   klick-practice.css — the free language practice area (/practice/).

   A SEPARATE stylesheet on purpose. design-polish.css is cached immutable for
   a year, so touching it means bumping ?v=YYYYMMDD on every <link> across ~60
   pages (see CLAUDE.md). This file carries its own ?v= and only the four
   practice pages load it, so practice styling can change on its own.

   Everything here is namespaced .pr-* so it cannot collide with the shared
   stylesheet. Colour comes from the tokens design-polish.css already defines
   (--red, --white, --smoke, --ink …), with literal fallbacks so a stale or
   failed stylesheet still renders something legible.
   ────────────────────────────────────────────────────────────────────────── */

.pr-wrap{max-width:820px;margin:0 auto}

/* ── The drill picker ──────────────────────────────────────────────────── */
.pr-tabs{display:flex;flex-wrap:wrap;gap:.5rem;margin:0 0 1.5rem}
.pr-tab{font:inherit;font-size:.82rem;font-weight:600;letter-spacing:.01em;cursor:pointer;
  padding:.6rem 1rem;border-radius:999px;border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.03);color:var(--smoke,#9aa0a6);transition:.18s}
.pr-tab:hover{border-color:rgba(217,55,50,.5);color:var(--white,#fff)}
.pr-tab[aria-selected="true"]{background:var(--red,#d93732);border-color:var(--red,#d93732);color:#fff}
.pr-tab-ic{margin-right:.4em;opacity:.85}

/* ── The card a drill runs inside ──────────────────────────────────────── */
.pr-card{border:1px solid rgba(255,255,255,.1);border-radius:16px;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  padding:clamp(1.25rem,4vw,2rem);position:relative;overflow:hidden}
.pr-card::before{content:"";position:absolute;inset:0 0 auto;height:2px;
  background:linear-gradient(90deg,transparent,var(--red,#d93732),transparent);opacity:.55}

.pr-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:.35rem}
.pr-title{font-size:1.05rem;font-weight:700;color:var(--white,#fff);margin:0}
.pr-sub{font-size:.85rem;line-height:1.6;color:var(--smoke,#9aa0a6);margin:0 0 1.25rem}

/* progress */
.pr-meter{display:flex;align-items:center;gap:.6rem;font-size:.72rem;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;color:var(--smoke,#9aa0a6);white-space:nowrap}
.pr-bar{width:min(140px,28vw);height:4px;border-radius:999px;background:rgba(255,255,255,.1);overflow:hidden}
.pr-bar span{display:block;height:100%;width:0;background:var(--red,#d93732);transition:width .3s}

/* ── The prompt: the word, character or sentence being practised ───────── */
.pr-prompt{text-align:center;padding:1.5rem 0 1.25rem}
.pr-target{font-size:clamp(2rem,9vw,3.2rem);line-height:1.15;font-weight:700;color:var(--white,#fff);
  word-break:break-word}
.pr-target.pr-cjk{font-size:clamp(3.5rem,16vw,6rem);line-height:1}
.pr-target.pr-rtl{font-size:clamp(2.6rem,12vw,4.5rem);line-height:1.5;direction:rtl}
.pr-roman{font-size:.95rem;color:var(--red,#d93732);margin-top:.5rem;font-weight:600;letter-spacing:.02em}
.pr-gloss{font-size:1rem;color:var(--smoke,#9aa0a6);margin-top:.6rem}
.pr-gloss .am,.pr-gloss [lang=am]{font-size:1.05rem;color:var(--white,#fff)}

/* ── Buttons ───────────────────────────────────────────────────────────── */
.pr-btns{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center;margin-top:1.25rem}
.pr-b{font:inherit;font-size:.86rem;font-weight:600;cursor:pointer;padding:.7rem 1.2rem;border-radius:10px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);color:var(--white,#fff);transition:.18s}
.pr-b:hover:not(:disabled){border-color:rgba(217,55,50,.6);background:rgba(217,55,50,.1)}
.pr-b:disabled{opacity:.4;cursor:not-allowed}
.pr-b-red{background:var(--red,#d93732);border-color:var(--red,#d93732);color:#fff}
.pr-b-red:hover:not(:disabled){background:#c22f2a;border-color:#c22f2a}
.pr-b-good{border-color:rgba(46,160,87,.5);color:#6ee7a0}
.pr-b-bad{border-color:rgba(217,55,50,.45);color:#f08a86}
.pr-b-wide{flex:1 1 180px;justify-content:center}
.pr-b-ic{width:1.05em;height:1.05em;vertical-align:-.15em;margin-right:.4em}

/* ── Typing ────────────────────────────────────────────────────────────── */
.pr-input{width:100%;font:inherit;font-size:1.1rem;padding:.85rem 1rem;border-radius:10px;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.25);color:var(--white,#fff);text-align:center}
.pr-input:focus{outline:none;border-color:var(--red,#d93732);box-shadow:0 0 0 3px rgba(217,55,50,.18)}
.pr-input.pr-rtl{direction:rtl;font-size:1.6rem}

/* ── Feedback ──────────────────────────────────────────────────────────── */
.pr-fb{margin-top:1.1rem;padding:.85rem 1rem;border-radius:10px;font-size:.88rem;line-height:1.6;
  border:1px solid transparent}
.pr-fb-ok{background:rgba(46,160,87,.12);border-color:rgba(46,160,87,.35);color:#9ff0bd}
.pr-fb-no{background:rgba(217,55,50,.1);border-color:rgba(217,55,50,.35);color:#f4b4b1}
.pr-fb-info{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.12);color:var(--smoke,#9aa0a6)}
.pr-fb b{color:#fff}
.pr-diff-ok{color:#6ee7a0}
.pr-diff-no{color:#f08a86;text-decoration:line-through;text-decoration-color:rgba(240,138,134,.5)}

/* ── Multiple choice ───────────────────────────────────────────────────── */
.pr-opts{display:grid;gap:.6rem;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));margin-top:1.25rem}
.pr-opt{font:inherit;font-size:1rem;cursor:pointer;padding:1rem .75rem;border-radius:12px;text-align:center;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.03);color:var(--white,#fff);transition:.15s}
.pr-opt:hover:not(:disabled){border-color:rgba(217,55,50,.55);background:rgba(217,55,50,.08)}
.pr-opt.pr-is-ok{border-color:rgba(46,160,87,.6);background:rgba(46,160,87,.16)}
.pr-opt.pr-is-no{border-color:rgba(217,55,50,.6);background:rgba(217,55,50,.14)}
.pr-opt:disabled{cursor:default}
.pr-opt-big{font-size:2.2rem;line-height:1.3;padding:1rem .5rem}

/* ── Match pairs ───────────────────────────────────────────────────────── */
.pr-grid{display:grid;gap:.6rem;grid-template-columns:repeat(auto-fit,minmax(115px,1fr));margin-top:1.25rem}
.pr-cell{font:inherit;font-size:.95rem;cursor:pointer;min-height:76px;padding:.7rem .5rem;border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.35;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.03);color:var(--white,#fff);transition:.15s}
.pr-cell:hover:not(:disabled){border-color:rgba(217,55,50,.5)}
.pr-cell.pr-sel{border-color:var(--red,#d93732);background:rgba(217,55,50,.16)}
.pr-cell.pr-done{opacity:.3;pointer-events:none;border-color:rgba(46,160,87,.45)}
.pr-cell.pr-miss{border-color:rgba(217,55,50,.7);animation:pr-shake .3s}
.pr-cell-cjk{font-size:1.9rem}
.pr-cell-rtl{font-size:1.6rem;direction:rtl}
@keyframes pr-shake{25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
@media (prefers-reduced-motion:reduce){.pr-cell.pr-miss{animation:none}}

/* ── Build a sentence: word tiles ──────────────────────────────────────── */
.pr-line{min-height:64px;display:flex;flex-wrap:wrap;gap:.45rem;align-items:center;padding:.8rem;
  border-radius:12px;border:1px dashed rgba(255,255,255,.18);background:rgba(0,0,0,.2);margin-top:1rem}
.pr-line.pr-rtl{direction:rtl}
.pr-line-empty{color:var(--smoke,#9aa0a6);font-size:.82rem;margin:auto}
.pr-tile{font:inherit;font-size:.95rem;font-weight:500;cursor:pointer;padding:.5rem .8rem;border-radius:8px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:var(--white,#fff);transition:.15s}
.pr-tile:hover{border-color:var(--red,#d93732);background:rgba(217,55,50,.14)}
.pr-tile-rtl{font-size:1.25rem}
.pr-bank{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:.8rem;justify-content:center}

/* ── Tracing canvas ────────────────────────────────────────────────────── */
.pr-trace{position:relative;margin:1.25rem auto 0;width:min(300px,78vw);aspect-ratio:1}
.pr-trace-guide{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:min(230px,60vw);line-height:1;color:rgba(255,255,255,.13);user-select:none;pointer-events:none}
.pr-trace-grid{position:absolute;inset:0;border:1px solid rgba(255,255,255,.12);border-radius:12px;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:50% 50%;background-position:center;pointer-events:none}
.pr-trace canvas{position:absolute;inset:0;width:100%;height:100%;border-radius:12px;touch-action:none;cursor:crosshair}

/* ── Speaking ──────────────────────────────────────────────────────────── */
.pr-mic{width:84px;height:84px;border-radius:50%;display:grid;place-items:center;margin:1.25rem auto 0;
  cursor:pointer;border:1px solid rgba(217,55,50,.5);background:rgba(217,55,50,.12);color:var(--white,#fff);
  transition:.2s}
.pr-mic:hover:not(:disabled){background:rgba(217,55,50,.22)}
.pr-mic:disabled{opacity:.45;cursor:not-allowed}
.pr-mic svg{width:30px;height:30px}
.pr-mic.pr-live{background:var(--red,#d93732);border-color:var(--red,#d93732);animation:pr-pulse 1.4s infinite}
@keyframes pr-pulse{0%{box-shadow:0 0 0 0 rgba(217,55,50,.5)}70%{box-shadow:0 0 0 18px rgba(217,55,50,0)}100%{box-shadow:0 0 0 0 rgba(217,55,50,0)}}
@media (prefers-reduced-motion:reduce){.pr-mic.pr-live{animation:none}}
.pr-mic-hint{text-align:center;font-size:.78rem;color:var(--smoke,#9aa0a6);margin-top:.7rem}
.pr-score{text-align:center;font-size:2.2rem;font-weight:800;margin-top:.9rem;color:var(--white,#fff)}
.pr-score small{display:block;font-size:.74rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--smoke,#9aa0a6);margin-top:.2rem}

/* ── Session summary ───────────────────────────────────────────────────── */
.pr-done-wrap{text-align:center;padding:1.5rem 0 .5rem}
.pr-done-n{font-size:clamp(2.6rem,11vw,4rem);font-weight:800;color:var(--white,#fff);line-height:1}
.pr-done-l{font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--smoke,#9aa0a6);margin-top:.4rem}
.pr-missed{text-align:left;margin:1.5rem auto 0;max-width:420px;font-size:.88rem}
.pr-missed li{padding:.5rem 0;border-bottom:1px solid rgba(255,255,255,.08);color:var(--smoke,#9aa0a6);
  display:flex;justify-content:space-between;gap:1rem}
.pr-missed li b{color:var(--white,#fff);font-weight:600}

/* ── Streak strip ──────────────────────────────────────────────────────── */
.pr-streak{display:flex;flex-wrap:wrap;gap:1.5rem;justify-content:center;padding:1rem 1.25rem;margin:0 0 1.5rem;
  border-radius:12px;border:1px solid rgba(255,255,255,.09);background:rgba(255,255,255,.025)}
.pr-st{text-align:center}
.pr-st-n{font-size:1.5rem;font-weight:800;color:var(--white,#fff);line-height:1.1}
.pr-st-l{font-size:.68rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--smoke,#9aa0a6);margin-top:.2rem}

/* ── Tutorials ─────────────────────────────────────────────────────────── */
.pr-tut{border:1px solid rgba(255,255,255,.1);border-radius:14px;background:rgba(255,255,255,.025);
  margin-bottom:.75rem;overflow:hidden}
.pr-tut-q{width:100%;font:inherit;font-size:.98rem;font-weight:600;text-align:left;cursor:pointer;
  padding:1.1rem 1.25rem;background:none;border:0;color:var(--white,#fff);display:flex;
  justify-content:space-between;align-items:center;gap:1rem}
.pr-tut-q::after{content:"+";font-size:1.3rem;color:var(--red,#d93732);flex:0 0 auto;line-height:1}
.pr-tut.pr-open .pr-tut-q::after{content:"–"}
.pr-tut-a{display:none;padding:0 1.25rem 1.25rem;font-size:.9rem;line-height:1.75;color:var(--smoke,#9aa0a6)}
.pr-tut.pr-open .pr-tut-a{display:block}
.pr-tut-a p{margin:0 0 .8rem}
.pr-tut-a p:last-child{margin-bottom:0}
.pr-tut-a b{color:var(--white,#fff)}
.pr-tut-a .pr-ex{display:block;margin:.6rem 0;padding:.7rem .9rem;border-radius:8px;
  background:rgba(0,0,0,.25);border-left:2px solid var(--red,#d93732);color:var(--white,#fff);font-size:.95rem}
.pr-tut-a .pr-ex .pr-ex-r{color:var(--red,#d93732);font-weight:600}
.pr-tut-a .pr-ex .pr-ex-g{color:var(--smoke,#9aa0a6)}

/* ── Language chooser on the hub ───────────────────────────────────────── */
.pr-langs{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.pr-lang{display:block;text-decoration:none;padding:1.5rem;border-radius:14px;
  border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.025);transition:.2s}
.pr-lang:hover{border-color:rgba(217,55,50,.5);background:rgba(217,55,50,.06);transform:translateY(-2px)}
.pr-lang-s{font-size:2.4rem;line-height:1;color:var(--white,#fff);margin-bottom:.6rem;display:block}
.pr-lang-t{font-size:1.1rem;font-weight:700;color:var(--white,#fff);margin-bottom:.4rem}
.pr-lang-d{font-size:.85rem;line-height:1.65;color:var(--smoke,#9aa0a6)}
.pr-lang-go{font-size:.8rem;font-weight:700;color:var(--red,#d93732);margin-top:.8rem;display:block}
@media (prefers-reduced-motion:reduce){.pr-lang:hover{transform:none}}

/* ── Utility ───────────────────────────────────────────────────────────── */
.pr-hide{display:none!important}
.pr-kbd{display:inline-block;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.78em;
  padding:.1em .45em;border-radius:4px;border:1px solid rgba(255,255,255,.2);background:rgba(0,0,0,.3)}
.pr-note{font-size:.8rem;line-height:1.65;color:var(--smoke,#9aa0a6);margin-top:1.25rem;
  padding-top:1.1rem;border-top:1px solid rgba(255,255,255,.08)}
.pr-note a{color:var(--red,#d93732)}

/* ── Voice bar: which voice reads to you, and how fast ─────────────────── */
.pr-voicebar{display:flex;align-items:center;flex-wrap:wrap;gap:.5rem;margin:0 0 1.25rem;
  padding:.6rem .85rem;border-radius:10px;border:1px solid rgba(255,255,255,.09);background:rgba(255,255,255,.025)}
.pr-vlabel{font-size:.68rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--smoke,#9aa0a6)}
.pr-vsel{font:inherit;font-size:.8rem;padding:.4rem .5rem;border-radius:7px;flex:0 1 240px;min-width:0;
  margin-right:auto;border:1px solid rgba(255,255,255,.16);background:#14161a;color:var(--white,#fff)}
.pr-vsel:focus{outline:none;border-color:var(--red,#d93732)}
.pr-vsel:disabled{opacity:.6}
.pr-vbtn{font:inherit;font-size:.75rem;font-weight:600;cursor:pointer;padding:.45rem .8rem;border-radius:7px;
  white-space:nowrap;flex:0 0 auto;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);color:var(--smoke,#9aa0a6);transition:.15s}
.pr-vbtn:hover{color:var(--white,#fff);border-color:rgba(217,55,50,.5)}
.pr-vbtn-on{background:rgba(217,55,50,.16);border-color:var(--red,#d93732);color:var(--white,#fff)}

/* ── Type it: the keyboard trainer ─────────────────────────────────────── */
.pr-type-line{display:flex;flex-wrap:wrap;justify-content:center;gap:1px;margin:1.5rem 0 1.25rem;
  font-family:ui-monospace,SFMono-Regular,Menlo,"Noto Sans Mono",monospace;font-size:clamp(1.15rem,4vw,1.6rem);
  line-height:1.9}
.pr-type-line.pr-rtl{direction:rtl;font-family:inherit;font-size:clamp(1.5rem,6vw,2.2rem)}
.pr-ch{color:var(--smoke,#9aa0a6);padding:0 1px;border-radius:3px;transition:.08s}
.pr-ch-sp{opacity:.35}
.pr-ch-ok{color:#6ee7a0}
.pr-ch-no{color:#f08a86;background:rgba(217,55,50,.2)}
.pr-ch-cur{color:var(--white,#fff);background:rgba(217,55,50,.9);box-shadow:0 0 0 2px rgba(217,55,50,.35)}
.pr-type-in{width:100%;font:inherit;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:1.05rem;
  padding:.8rem 1rem;border-radius:10px;text-align:center;
  border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.28);color:var(--white,#fff)}
.pr-type-in.pr-rtl{direction:rtl;font-family:inherit;font-size:1.45rem}
.pr-type-in:focus{outline:none;border-color:var(--red,#d93732);box-shadow:0 0 0 3px rgba(217,55,50,.18)}
.pr-type-in:disabled{opacity:.6}
.pr-type-stats{display:flex;justify-content:center;gap:2rem;margin-top:.9rem;
  font-size:.7rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--smoke,#9aa0a6)}
.pr-type-stats b{display:block;font-size:1.5rem;font-weight:800;letter-spacing:0;color:var(--white,#fff);
  text-transform:none;line-height:1.1}
.pr-type-stats > span{text-align:center}

.pr-kb{margin-top:1.5rem;display:flex;flex-direction:column;gap:.3rem;align-items:center;
  padding-top:1.25rem;border-top:1px solid rgba(255,255,255,.08)}
.pr-kb-row{display:flex;gap:.3rem;justify-content:center;width:100%}
.pr-key{position:relative;font:inherit;cursor:pointer;flex:1 1 0;min-width:0;max-width:46px;
  aspect-ratio:1/1.05;display:flex;flex-direction:column;align-items:center;justify-content:center;
  border-radius:7px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);
  color:var(--white,#fff);transition:.12s;padding:0}
.pr-key:hover{background:rgba(255,255,255,.1)}
.pr-key-wide{flex:2 1 0;max-width:190px;aspect-ratio:auto;min-height:38px}
.pr-key-wide .pr-key-main{font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--smoke,#9aa0a6)}
.pr-key-wide.pr-key-next .pr-key-main,.pr-key-on .pr-key-main{color:#fff}
.pr-key-main{font-size:.95rem;font-weight:600;line-height:1}
.pr-key-lat{font-size:.55rem;font-weight:700;color:var(--smoke,#9aa0a6);margin-top:.15rem;letter-spacing:.04em}
.pr-key-next{background:var(--red,#d93732);border-color:var(--red,#d93732);color:#fff;
  transform:translateY(1px);box-shadow:0 0 0 3px rgba(217,55,50,.28)}
.pr-key-next .pr-key-lat{color:rgba(255,255,255,.8)}
.pr-key-on{background:rgba(217,55,50,.22);border-color:rgba(217,55,50,.6)}
/* Finger colours: a hairline under each key, left hand cool, right hand warm. */
.pr-f1::after,.pr-f2::after,.pr-f3::after,.pr-f4::after,
.pr-f5::after,.pr-f6::after,.pr-f7::after,.pr-f8::after{
  content:"";position:absolute;left:22%;right:22%;bottom:4px;height:2px;border-radius:2px;opacity:.75}
.pr-f1::after{background:#6c8cff}.pr-f2::after{background:#4fb3d9}
.pr-f3::after{background:#4fd9a4}.pr-f4::after{background:#9ad94f}
.pr-f5::after{background:#f0c44f}.pr-f6::after{background:#f09a4f}
.pr-f7::after{background:#f0704f}.pr-f8::after{background:#e0559a}
.pr-key-next::after{opacity:0}
.pr-kb-note{margin-top:.9rem;font-size:.76rem;line-height:1.65;color:var(--smoke,#9aa0a6);text-align:center}
@media (max-width:420px){
  .pr-key{max-width:34px;border-radius:5px}
  /* The cap above is for letter keys only — space and shift stay wide. */
  .pr-key-wide{max-width:none}
  .pr-key-main{font-size:.8rem}
  .pr-key-lat{font-size:.48rem}
  .pr-kb-row{gap:.2rem}
}