.kf-engage-btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;min-height:42px;padding:.65rem 1rem;border-radius:999px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.07);color:inherit;font:inherit;font-weight:850;cursor:pointer;text-decoration:none;transition:.18s ease}.kf-engage-btn:hover{transform:translateY(-1px);border-color:rgba(246,201,69,.65)}.kf-engage-btn.is-active{background:linear-gradient(135deg,#f6c945,#ff8a00);color:#111;border-color:transparent}.kf-engage-btn[disabled]{opacity:.65;cursor:wait}.kf-heart{font-size:1.15em;line-height:1}.kf-engagement-count{font-variant-numeric:tabular-nums}.kf-song-open{display:block;min-width:0;color:inherit;text-decoration:none}.kf-song-open:hover b{text-decoration:underline;text-decoration-color:#f6c945;text-underline-offset:3px}.kf-song-thumb-link{display:block}.kf-song-like{width:42px;height:42px;padding:0;border-radius:50%}.kf-song-row .kf-song-like{justify-self:end}.kf-collection-grid{display:grid;gap:12px}.kf-collection-row{display:grid;grid-template-columns:52px minmax(0,1fr) auto;gap:12px;align-items:center;padding:12px;border:1px solid rgba(255,255,255,.1);border-radius:16px;background:rgba(255,255,255,.035)}.kf-collection-row img{width:52px;height:52px;border-radius:12px;object-fit:cover}.kf-collection-actions{display:flex;gap:8px;align-items:center}.kf-empty-engagement{text-align:center;padding:42px 20px;border:1px dashed rgba(255,255,255,.18);border-radius:18px}.kf-toast{position:fixed;right:18px;bottom:calc(var(--kf-player-height,90px) + 18px);z-index:2147482500;padding:11px 14px;border-radius:12px;background:#17171d;color:#fff;box-shadow:0 12px 30px rgba(0,0,0,.35);opacity:0;transform:translateY(8px);pointer-events:none;transition:.2s}.kf-toast.is-visible{opacity:1;transform:none}@media(max-width:760px){.kf-song-row{grid-template-columns:40px 48px minmax(0,1fr) 42px!important}.kf-collection-row{grid-template-columns:48px minmax(0,1fr)}.kf-collection-actions{grid-column:1/-1;justify-content:flex-start}}