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.75rem;font-weight:600;cursor:pointer;background:#ffffff1f;color:var(--text-primary)}.leaderboard-action.locked{background:#6e56cf40;color:#d4c7ff}.leaderboard-empty,.leaderboard-loading,.leaderboard-error{text-align:center;padding:1.2rem;color:var(--text-secondary)}.upgrade-modal-backdrop{position:fixed;inset:0;background:#000000a6;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.upgrade-modal{width:100%;max-width:520px;background:#181a1d;border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:1.4rem}.upgrade-modal h3{margin-bottom:.6rem}.merchant-wallet{font-family:monospace;font-size:1rem;padding:.65rem;border-radius:8px;background:#ffffff0f;margin:.7rem 0}.upgrade-input{width:100%;background:#0000004d;border:1px solid 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#a78bfa66}.btn-upgrade-dummy{width:100%;padding:1rem;border-radius:12px;background:#ffffff1a;color:#fff;border:1px solid rgba(255,255,255,.2);font-weight:600;cursor:default}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){.hero-title{font-size:2.5rem}.landing-topbar,.topbar-session{justify-content:center}.pricing-grid,.leaderboard-grid{grid-template-columns:1fr}.leaderboard-row{grid-template-columns:44px 1fr}.leaderboard-metric{text-align:left}.leaderboard-action{grid-column:span 2}.session-actions{flex-direction:column}}