.kfs-root{box-sizing:border-box;width:100%;max-width:820px;color:var(--wiu-ink);margin:0 auto;padding:15px;container-type:inline-size}.kfs-header{text-align:center;margin-bottom:20px}.kfs-logo{width:300px;max-width:100%;height:auto;margin:0 auto 5px;display:block}.kfs-subtitle{color:var(--wiu-blue);margin:0;font-size:1.04rem;font-weight:900}.kfs-control-bar{background:var(--wiu-surface);border-radius:12px;flex-wrap:nowrap;justify-content:center;align-items:center;gap:15px;margin-bottom:20px;padding:10px 15px;display:flex;box-shadow:0 2px 5px #0000000d}.kfs-level-nav{gap:.5em}.kfs-badge{flex-shrink:0;width:50px;height:50px;position:relative}.kfs-control-bar .kfs-btn-play{background:var(--wiu-green);border-color:var(--wiu-green);color:#fff;font-weight:700}.kfs-control-bar .kfs-btn-play:hover:not(:disabled):not(.is-active){background:var(--wiu-green-dark)}.kfs-control-bar .kfs-btn-play img{filter:brightness(0)invert()}.kfs-btn-toggle{white-space:nowrap;font-weight:600}.kfs-toggle-label{display:grid}.kfs-toggle-label>*{text-align:center;grid-area:1/1}.kfs-toggle-ghost{visibility:hidden}.kfs-description{text-align:center;color:#555;background:var(--wiu-green-light);border-left:4px solid var(--wiu-green);border-radius:8px;margin-bottom:20px;padding:12px 20px;font-size:1rem;line-height:1.4}.kfs-grid{grid-template-columns:repeat(3,1fr);gap:15px;margin-bottom:30px;display:grid}@container (max-width:560px){.kfs-grid{grid-template-columns:repeat(2,1fr);gap:10px}.kfs-control-bar{gap:6px;padding:8px 10px}.kfs-level-nav{gap:0;padding:.25em .3em}.kfs-badge{width:38px;height:38px}.kfs-level-nav .wiu-level-arrow{padding:4px 6px;font-size:1rem}.kfs-control-bar .kfs-btn-play,.kfs-btn-toggle{gap:.25em;padding:.45em .5em;font-size:.8rem}.kfs-control-bar .kfs-btn-play{flex-shrink:0;padding:.45em .6em}.kfs-control-bar .kfs-btn-play .kfs-btn-label{display:none}.kfs-btn-toggle{flex-shrink:0}.kfs-card{padding:8px}.kfs-card-imgwrap{margin-bottom:4px}.kfs-label{min-height:2.2em}.kfs-hu{font-size:.95rem}.kfs-de{font-size:.8rem}}.kfs-card{background:var(--wiu-surface);cursor:pointer;border:4px solid #0000;border-radius:12px;flex-direction:column;align-items:center;padding:10px;transition:transform .2s,border-color .2s,opacity .2s;display:flex;box-shadow:0 4px 8px #0000001a}.kfs-card:hover:not(.is-correct):not(.is-wrong){transform:scale(1.02)}.kfs-card.is-correct{border-color:var(--wiu-green);pointer-events:none}.kfs-card.is-wrong{border-color:var(--wiu-red);opacity:.5;pointer-events:none}.kfs-card-imgwrap{aspect-ratio:1;border-radius:8px;width:100%;margin-bottom:8px;position:relative;overflow:hidden}.kfs-card-img{-o-object-fit:cover;object-fit:cover}.kfs-label{text-align:center;flex-direction:column;justify-content:flex-start;align-items:center;width:100%;min-height:3.2em;display:flex;overflow:hidden}.kfs-hu{color:var(--wiu-green);font-size:1.05rem;font-weight:700;line-height:1.2;transition:opacity .2s}.kfs-hu.is-hidden{opacity:0}.kfs-de{color:var(--wiu-muted);opacity:0;margin-top:3px;font-size:.9rem;transition:opacity .3s}.kfs-card.is-correct .kfs-hu,.kfs-card.is-correct .kfs-de{opacity:1}.kfs-instructions{background:var(--wiu-surface);border-radius:8px;margin-top:20px;overflow:hidden;box-shadow:0 2px 5px #0000000d}.kfs-acc-header{background:var(--wiu-green);color:#fff;text-align:left;cursor:pointer;border:none;justify-content:space-between;align-items:center;width:100%;padding:15px;font-size:1.1rem;font-weight:700;transition:background .2s;display:flex}.kfs-acc-header:hover{background:var(--wiu-green-dark)}.kfs-acc-header:after{content:"+";font-size:1.5rem;line-height:1}.kfs-acc-header.is-open:after{content:"−"}.kfs-acc-content{max-height:0;color:var(--wiu-ink);padding:0 15px;font-size:.95rem;line-height:1.6;transition:max-height .3s ease-out,padding .3s;overflow:hidden}.kfs-acc-content.is-open{max-height:1200px;padding:15px}.kfs-acc-content p{margin:0 0 .8em}