.study-mode-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;background:#f3ead0;border-radius:20px;padding:6px;margin-bottom:28px}.study-mode-nav button{border:0;background:transparent;border-radius:14px;padding:12px 8px;color:#625879;font:700 .92rem "DM Sans";cursor:pointer}.study-mode-nav button.selected{background:#fff;color:var(--ink);box-shadow:0 3px 10px rgba(55,45,25,.08)}.practice-hub{margin-top:0;padding-top:0;border:0}.practice-hub h2{font-size:1.5rem}.practice-actions{display:none}@media(max-width:600px){.study-mode-nav button{font-size:.78rem;padding:11px 4px}}html[data-theme="dark"] .study-mode-nav{background:#332d24}html[data-theme="dark"] .study-mode-nav button.selected{background:#242130}