.fc{max-width:560px;margin-inline:auto}.fc-progress{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}.fc-progress .count{font-weight:700;color:var(--ink);font-family:var(--font-display)}.fc-progress .deck{font-size:.82rem;font-weight:600;color:var(--green-deep);background:var(--green-soft);padding:.3rem .7rem;border-radius:999px}.fc-track{height:8px;border-radius:999px;background:var(--green-soft);overflow:hidden;margin-bottom:1.4rem}.fc-track span{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--green-deep));border-radius:999px;transition:width .35s ease}.fc-stage{perspective:1400px}.fc-card{position:relative;width:100%;min-height:280px;cursor:pointer;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.2,.9,.3,1)}.fc-card.flipped{transform:rotateY(180deg)}.fc-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:2.2rem;border-radius:var(--r-xl);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-lift)}.fc-back{transform:rotateY(180deg);background:var(--bg-2)}.fc-tag{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:1rem}.fc-front .fc-q{font-family:var(--font-display);font-weight:600;font-size:1.7rem;color:var(--ink);line-height:1.2}.fc-a{font-size:1.08rem;line-height:1.6;color:var(--ink)}.fc-a strong{color:var(--green-deep);font-weight:700}.fc-hint{position:absolute;bottom:1rem;font-size:.8rem;color:var(--muted)}.fc-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:.7rem;margin-top:1.3rem}.fc-btn{font-weight:700;font-size:.98rem;padding:.85rem 1rem;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-soft);transition:transform .15s,box-shadow .15s}.fc-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift)}.fc-btn small{display:block;font-weight:600;font-size:.68rem;color:var(--muted);margin-top:.15rem}.fc-btn.miss{color:var(--coral-deep)}.fc-btn.miss:hover{background:var(--coral-soft)}.fc-btn.unsure{color:var(--yellow-deep)}.fc-btn.unsure:hover{background:var(--yellow-soft)}.fc-btn.got{color:var(--green-deep)}.fc-btn.got:hover{background:var(--green-soft)}.fc-reveal-hint{margin-top:1.3rem;text-align:center;color:var(--muted);font-size:.9rem}.fc-done{text-align:center;padding:2.5rem 1.5rem;border-radius:var(--r-xl);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-lift)}.fc-done .emoji{font-size:2.6rem}.fc-done h2{font-size:1.6rem;color:var(--ink);margin:.6rem 0 .4rem}.fc-done p{color:var(--ink-dim);margin-bottom:1.4rem}.fc-done .xp{color:var(--green-deep);font-weight:700}.fc-done-actions{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}.fc-again,.fc-link{font-weight:700;padding:.8rem 1.4rem;border-radius:999px}.fc-again{color:#fff;background:linear-gradient(135deg,var(--green),var(--green-deep));box-shadow:var(--shadow-green)}.fc-link{color:var(--ink);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-soft)}.fc-main[data-astro-cid-kljiiu2n]{position:relative;z-index:2;max-width:720px;padding-block:clamp(2rem,5vw,3.5rem) 5rem}.fc-head[data-astro-cid-kljiiu2n]{text-align:center;max-width:40rem;margin:0 auto 2.2rem}.back[data-astro-cid-kljiiu2n]{display:inline-block;font-weight:600;font-size:.9rem;color:var(--ink-dim);margin-bottom:1rem}.back[data-astro-cid-kljiiu2n]:hover{color:var(--green-deep)}.fc-head[data-astro-cid-kljiiu2n] h1[data-astro-cid-kljiiu2n]{font-size:clamp(2rem,5vw,3rem);color:var(--ink)}.u-green[data-astro-cid-kljiiu2n]{position:relative;color:var(--green-deep);white-space:nowrap}.u-green[data-astro-cid-kljiiu2n]:after{content:"";position:absolute;left:-.05em;right:-.05em;bottom:.06em;height:.3em;background:var(--green-soft);border-radius:999px;z-index:-1;transform:rotate(-1.5deg)}.lede[data-astro-cid-kljiiu2n]{margin-top:.9rem;color:var(--ink-dim);font-size:1.08rem}