.king-section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px}.king-section-head h3{margin:0}.king-difficulty{display:inline-flex;gap:4px;padding:4px;border:1px solid var(--line,#30394a);border-radius:12px;background:rgba(7,11,18,0.72)}.king-difficulty button{min-width:72px;padding:8px 14px;border:0;border-radius:9px;color:var(--muted,#9ca8bb);background:transparent;cursor:pointer;transition:color .18s ease,background .18s ease,box-shadow .18s ease}.king-difficulty button:hover{color:var(--text,#eef4ff);background:rgba(124,150,255,0.1)}.king-difficulty button.active{color:#fff;background:linear-gradient(135deg,#596ddb,#9b63df);box-shadow:0 5px 18px rgba(112,99,223,0.28)}@media(max-width:620px){.king-section-head{align-items:stretch;flex-direction:column}.king-difficulty{align-self:flex-start}}