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"main"}.burger{display:inline-flex}.topbar{display:flex;flex-wrap:wrap;gap:10px;padding:9px 14px}.brand-name{display:none}.topbar-search{flex:1;max-width:none;margin:0}.sidebar{position:fixed;top:0;left:0;bottom:0;z-index:45;width:288px;max-width:84vw;transform:translate(-100%);transition:transform .22s ease;box-shadow:0 12px 40px var(--shadow);padding-top:12px}.sidebar-open{transform:translate(0)}.sidebar-mobile-head{display:flex}}@media (max-width: 560px){.topbar-search{order:5;flex-basis:100%}}.gref{width:100%;max-width:820px;margin:0 auto;padding:18px 16px 48px}.gref-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.gref-title{font-family:var(--font-display);font-size:24px;font-weight:700;color:var(--text);margin:0}.gref-back{background:none;border:none;color:var(--accent);font-size:15px;cursor:pointer;padding:4px 0}.gref-back:hover{text-decoration:underline}.lang-toggle{display:inline-flex;flex:none;border:1px solid var(--border);border-radius:var(--r-pill);overflow:hidden;background:var(--surface-2)}.lang-btn{border:none;background:none;color:var(--muted);font-size:13px;font-weight:600;padding:5px 14px;cursor:pointer}.lang-btn.active{background:var(--accent);color:var(--accent-ink)}.gref-tip{display:flex;gap:12px;align-items:flex-start;background:var(--accent-weak);border:1px solid var(--border);border-radius:var(--r-md);padding:14px 16px;margin-bottom:22px}.gref-tip-icon{font-size:20px;line-height:1.3}.gref-tip-text{color:var(--text);font-size:15px}.gref-tip-ex{color:var(--muted);font-size:14px;margin-top:4px;font-style:italic}.gref-group{margin-bottom:22px}.gref-group-title{font-family:var(--font-display);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:0 0 10px}.gref-topics{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px}.gref-topic{text-align:left;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:12px 14px;color:var(--text);font-size:15px;cursor:pointer;transition:border-color .15s,background .15s}.gref-topic:hover{border-color:var(--accent);background:var(--surface-2)}.gref-lesson-kicker{color:var(--accent);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}.gref-lesson-title{font-family:var(--font-display);font-size:26px;font-weight:700;color:var(--text);margin:4px 0 18px}.gref-sec{margin-bottom:26px}.gref-sec-h{font-family:var(--font-display);font-size:19px;font-weight:700;color:var(--text);margin:0 0 10px;padding-bottom:6px;border-bottom:1px solid var(--border)}.md{color:var(--text);font-size:15px;line-height:1.65}.md>:first-child{margin-top:0}.md p{margin:0 0 12px}.md h3{font-family:var(--font-display);font-size:16px;margin:18px 0 8px;color:var(--text)}.md h4{font-size:15px;margin:14px 0 6px;color:var(--text)}.md ul,.md ol{margin:0 0 12px;padding-left:22px}.md li{margin:4px 0}.md blockquote{margin:0 0 14px;padding:8px 14px;border-left:3px solid var(--accent);background:var(--surface-2);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--muted)}.md blockquote p:last-child{margin-bottom:0}.md code{font-family:var(--font-mono);font-size:.9em;background:var(--surface-2);border:1px solid var(--border);border-radius:4px;padding:1px 5px}.md pre{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r-sm);padding:12px;overflow-x:auto;margin:0 0 12px}.md pre code{background:none;border:none;padding:0}.md a{color:var(--accent)}.md del{color:var(--bad)}.md strong{color:var(--text);font-weight:700}.md hr{border:none;border-top:1px solid var(--border);margin:18px 0}.md table{display:block;width:max-content;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:0 0 14px;font-size:14px}.md th,.md td{border:1px solid var(--border);padding:7px 11px;text-align:left;vertical-align:top}.md 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.g-ex-mark{color:var(--ok)}.g-ex-gloss{color:var(--muted);font-size:13px;margin-top:5px;font-style:italic}.admin-shell{display:flex;flex-direction:column;height:100%;background:var(--bg)}.admin-main{flex:1;min-height:0;display:flex;overflow:hidden;background:var(--bg)}.admin-account-email{color:var(--muted);font-size:13px;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-notice{text-align:center;gap:14px}.admin-hint{color:var(--muted);font-size:13px;margin:0 0 14px}.admin-you{color:var(--muted);font-size:12px}.admin-role-select{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:var(--r-sm);padding:5px 9px;font:inherit;font-size:14px;cursor:pointer}.admin-role-select:disabled{opacity:.5;cursor:default}.admin-row-error{color:var(--bad);font-size:12px;margin-top:5px}.badge-role-USER{color:var(--muted)}.badge-role-EXTENDED{color:var(--accent)}.badge-role-ADMIN{color:var(--gold)}