/* style.css — Orit */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#14110d; --surface:#1c1812; --card:#241e15; --card-2:#2e2619;
  --text:#f0e6d2; --muted:#9a8c74; --border:rgba(212,164,86,.16);
  --accent:#d4a456; --accent-2:#c8593a; --good:#7bbf6a; --bad:#d96a5a;
  --shadow:0 18px 50px -20px rgba(0,0,0,.7);
  --r:18px;
  color-scheme:dark;
}
@media (prefers-color-scheme: light){
  :root{
    --bg:#f4ede0; --surface:#fffaf0; --card:#fff; --card-2:#fbf3e1;
    --text:#2a1f10; --muted:#8a755a; --border:rgba(138,90,19,.18);
    --accent:#9a6612; --accent-2:#b54a2e; --good:#3f8a3a; --bad:#c0452f;
    --shadow:0 18px 45px -22px rgba(80,50,10,.35);
    color-scheme:light;
  }
}
html[data-theme="dark"]{
  --bg:#14110d; --surface:#1c1812; --card:#241e15; --card-2:#2e2619;
  --text:#f0e6d2; --muted:#9a8c74; --border:rgba(212,164,86,.16);
  --accent:#d4a456; --accent-2:#c8593a; --good:#7bbf6a; --bad:#d96a5a;
  color-scheme:dark;
}
html[data-theme="light"]{
  --bg:#f4ede0; --surface:#fffaf0; --card:#fff; --card-2:#fbf3e1;
  --text:#2a1f10; --muted:#8a755a; --border:rgba(138,90,19,.18);
  --accent:#9a6612; --accent-2:#b54a2e; --good:#3f8a3a; --bad:#c0452f;
  color-scheme:light;
}

html,body{height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  min-height:100%;
  line-height:1.5;
}
.app{
  max-width:760px;
  margin:0 auto;
  padding:22px 18px 28px;
  display:flex;
  flex-direction:column;
  gap:20px;
  min-height:100vh;
}

/* topbar */
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:12px}
.mark{
  width:44px;height:44px;flex:none;border-radius:12px;
  display:grid;place-items:center;font-size:26px;font-weight:700;
  background:linear-gradient(145deg,var(--accent),var(--accent-2));
  color:#1a120a;box-shadow:0 6px 18px -6px rgba(212,164,86,.5);
}
.brand-text h1{font-size:20px;letter-spacing:.3px;font-weight:700}
.brand-text p{font-size:12px;color:var(--muted)}
.tabs{display:flex;gap:4px;background:var(--surface);padding:4px;border-radius:12px;border:1px solid var(--border)}
.tab{
  appearance:none;border:0;background:transparent;color:var(--muted);
  padding:8px 16px;border-radius:9px;font-size:13px;font-weight:600;cursor:pointer;
  transition:color .2s, background .2s, transform .1s;
}
.tab:hover{color:var(--text)}
.tab.active{background:var(--card-2);color:var(--accent)}
.tab:active{transform:translateY(1px)}

/* stage */
.stage{flex:1;display:flex;flex-direction:column;gap:18px}

/* card */
.card-wrap{display:flex;flex-direction:column;align-items:center;gap:16px}
.card{
  width:100%;max-width:420px;height:300px;
  perspective:1200px;cursor:pointer;
}
.card:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:var(--r)}
.face{
  position:absolute;inset:0;border-radius:var(--r);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  padding:24px;text-align:center;
  backface-visibility:hidden;-webkit-backface-visibility:hidden;
  background:linear-gradient(160deg,var(--card),var(--card-2));
  border:1px solid var(--border);box-shadow:var(--shadow);
}
.front{transition:transform .55s cubic-bezier(.5,.05,.2,1)}
.back{transform:rotateY(180deg);transition:transform .55s cubic-bezier(.5,.05,.2,1)}
.card.flipped .front{transform:rotateY(-180deg)}
.card.flipped .back{transform:rotateY(0)}
.letter{
  font-size:128px;line-height:1;font-weight:400;
  font-family:"Times New Roman",Georgia,serif;
  background:linear-gradient(160deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.letter.sm{font-size:56px;margin-bottom:4px}
.letter.big{font-size:112px}
.reveal-hint{font-size:12px;color:var(--muted);letter-spacing:1.5px;text-transform:uppercase}
.name{font-size:24px;font-weight:700}
.sound{font-size:14px;color:var(--accent);letter-spacing:.5px;margin-top:2px}
.desc{font-size:13.5px;color:var(--muted);max-width:300px;margin-top:6px;line-height:1.55}

.card-actions{display:flex;gap:10px;align-items:center;width:100%;max-width:420px}
button{font-family:inherit;font-size:14px;border-radius:11px;cursor:pointer;transition:transform .12s, background .2s, box-shadow .2s, border-color .2s}
button:active{transform:translateY(1px)}
.primary,.ghost,.known{
  appearance:none;padding:11px 18px;font-weight:600;border:1px solid var(--border);
}
.primary{background:linear-gradient(145deg,var(--accent),var(--accent-2));color:#1a120a;border:0;flex:1}
.primary:hover{box-shadow:0 8px 22px -8px rgba(212,164,86,.6)}
.ghost{background:var(--surface);color:var(--text);min-width:78px}
.ghost:hover{border-color:var(--accent);color:var(--accent)}
.known{background:rgba(123,191,106,.14);color:var(--good);border-color:rgba(123,191,106,.4);flex:1}
.known:hover{background:rgba(123,191,106,.22)}

/* strip */
.strip{
  display:flex;flex-wrap:wrap;gap:6px;justify-content:center;
  padding:14px;background:var(--surface);border:1px solid var(--border);border-radius:14px;
}
.chip{
  width:34px;height:34px;border-radius:9px;border:1px solid var(--border);
  background:transparent;color:var(--text);font-size:18px;
  font-family:"Times New Roman",Georgia,serif;line-height:1;
  display:grid;place-items:center;transition:all .15s;
}
.chip:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.chip.on{background:var(--accent);color:#1a120a;border-color:transparent}
.chip.k{border-color:rgba(123,191,106,.5);color:var(--good)}
.chip.k.on{background:var(--good);color:#0f1a0c}

/* quiz */
.quiz-wrap{display:flex;flex-direction:column;gap:18px;align-items:center}
.quiz-card{
  width:100%;max-width:440px;display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:26px;border-radius:var(--r);
  background:linear-gradient(160deg,var(--card),var(--card-2));
  border:1px solid var(--border);box-shadow:var(--shadow);
}
.quiz-q{font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted)}
.options{
  width:100%;max-width:440px;display:grid;grid-template-columns:1fr 1fr;gap:10px;
}
.opt{
  appearance:none;background:var(--surface);border:1px solid var(--border);color:var(--text);
  padding:16px 12px;border-radius:13px;display:flex;flex-direction:column;gap:4px;align-items:center;
  justify-content:center;min-height:54px;
  transition:all .15s;
}
.opt:hover:not(:disabled){border-color:var(--accent);transform:translateY(-1px);box-shadow:0 6px 16px -10px rgba(212,164,86,.5)}
.opt:disabled{cursor:default}
.opt-name{font-size:15px;font-weight:600}
.opt.correct{background:rgba(123,191,106,.16);border-color:var(--good)}
.opt.wrong{background:rgba(217,106,90,.16);border-color:var(--bad)}
.opt.dim{opacity:.5}
.quiz-foot{width:100%;max-width:440px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.score{font-size:13px;color:var(--muted)}
.score strong{color:var(--text);font-size:16px}
.muted{font-size:13px;color:var(--muted)}
#nextQ{flex:0 0 auto;min-width:160px}

/* footer */
.foot{display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--border);padding-top:16px}
.progress-bar{height:8px;border-radius:6px;background:var(--surface);overflow:hidden;border:1px solid var(--border)}
.progress-bar span{display:block;height:100%;width:0;border-radius:6px;
  background:linear-gradient(90deg,var(--good),var(--accent));transition:width .4s ease}
#progressText{font-size:12px;color:var(--muted);letter-spacing:.3px}
.hint{font-size:11px;color:var(--muted);opacity:.7}

@media (max-width:420px){
  .options{grid-template-columns:1fr}
  .quiz-foot{flex-direction:column;align-items:stretch}
  #nextQ{width:100%}
  .card-actions{flex-wrap:wrap}
  .ghost{flex:1}
}