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var(--border);border-radius:999px;grid-auto-columns:minmax(0,1fr);grid-auto-flow:column;display:grid;overflow:hidden}.ru-segment{color:var(--muted);font:inherit;letter-spacing:.14em;text-transform:uppercase;cursor:pointer;background:0 0;border:none;padding:12px 6px;font-size:.78rem}.ru-segment+.ru-segment{border-left:1px solid var(--border)}.ru-segment.is-active{color:var(--text);box-shadow:inset 0 0 0 1px #fff9}.ru-card{text-align:center;justify-items:center;gap:14px;display:grid}.ru-card-head{align-items:center;gap:14px;display:flex}.ru-meanings{color:var(--text);gap:4px;font-size:1.05rem;line-height:1.4;display:grid}.ru-meanings .is-secondary{color:var(--muted);font-size:.95rem}.ru-usage{white-space:pre-line;color:var(--muted);text-align:left;width:100%;font-size:.88rem;line-height:1.5}.ru-example{text-align:left;gap:2px;width:100%;display:grid}.ru-example-ru{font-size:1.02rem;line-height:1.45}.ru-example-en{color:var(--muted);font-size:.88rem;line-height:1.4}.ru-chips{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.ru-chip{border:1px solid var(--border);color:var(--muted);letter-spacing:.04em;border-radius:999px;padding:5px 10px;font-size:.78rem}.ru-input{background:var(--card);border:1px solid var(--border);width:100%;font:inherit;color:var(--text);text-align:center;border-radius:14px;padding:16px;font-size:1.25rem}.ru-input:focus{border-color:#fff6;outline:none}.ru-input.is-correct{border-color:#2ecc71e6}.ru-input.is-wrong{border-color:#e74c3ce6}.ru-input-row{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;display:grid}.ru-keyboard{-webkit-user-select:none;user-select:none;gap:6px;display:grid}.ru-keyboard-row{grid-auto-columns:minmax(0,1fr);grid-auto-flow:column;gap:5px;display:grid}.ru-key{border:1px solid var(--border);background:var(--card);height:42px;color:var(--text);font:inherit;cursor:pointer;touch-action:manipulation;border-radius:8px;padding:0;font-size:1.05rem}.ru-key:active{background:var(--card-hover)}.ru-key.is-wide{grid-column:span 3}.ru-answer{text-align:center;gap:6px;min-height:3.6em;display:grid}.ru-answer-main{color:var(--text);font-size:1.4rem}.ru-answer-note{color:var(--muted);font-size:.9rem}.ru-answer.is-correct .ru-answer-main{color:#bff0d0}.ru-answer.is-wrong .ru-answer-main{color:#ffd1cb}.ru-options{gap:10px;display:grid}.ru-option{color:var(--text);font:inherit;cursor:pointer;text-align:center;transition:border-color var(--transition);background:0 0;border:1px solid #ffffff47;border-radius:14px;padding:14px 16px;font-size:1.05rem}.ru-option.is-correct{border-color:#2ecc71e6}.ru-option.is-wrong{border-color:#e74c3ce6}.ru-option:disabled{cursor:default}.ru-grades{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}.ru-grade{color:var(--text);font:inherit;letter-spacing:.12em;text-transform:uppercase;cursor:pointer;background:0 0;border:1px solid #ffffff47;border-radius:14px;justify-items:center;gap:4px;padding:12px 4px;font-size:.78rem;display:grid}.ru-grade span{letter-spacing:.04em;text-transform:none;color:var(--muted);font-size:.72rem}.ru-top{grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;display:grid}.ru-top .ru-meta:last-child{text-align:right}.ru-bar{background:var(--border);border-radius:2px;height:2px;overflow:hidden}.ru-bar-fill{background:var(--accent-strong);height:100%;transition:width var(--transition)}.ru-lesson{gap:20px;display:grid}.ru-lesson p{color:var(--text);text-align:left;font-size:1rem;line-height:1.6}.ru-rule{border-left:2px solid var(--accent-strong);padding-left:14px;font-size:1rem;line-height:1.55}.ru-table-wrap{border-top:1px solid var(--border);border-bottom:1px solid var(--border);overflow-x:auto}.ru-table{border-collapse:collapse;width:100%;font-size:.95rem;line-height:1.4}.ru-table th{letter-spacing:.14em;text-transform:uppercase;color:var(--muted);text-align:left;border-bottom:1px solid var(--border);white-space:nowrap;padding:10px 10px 8px 0;font-size:.72rem;font-weight:500}.ru-table td{vertical-align:top;border-bottom:1px solid #ffffff0f;padding:9px 10px 9px 0}.ru-table tr:last-child td{border-bottom:none}.ru-table td:first-child{color:var(--muted);white-space:nowrap}.ru-examples{gap:10px;margin:0;padding:0;list-style:none;display:grid}.ru-text{gap:18px;display:grid}.ru-text p{color:var(--text);text-align:left;white-space:pre-line;font-size:1.15rem;line-height:1.75}.ru-token{cursor:pointer;transition:background var(--transition);border-radius:4px;padding:0 1px}.ru-token.is-active{background:#ffffff29}.ru-token.is-new{text-underline-offset:4px;text-decoration:underline #ffffff4d}.ru-gloss{left:50%;bottom:calc(14px + env(safe-area-inset-bottom));background:var(--bg-alt);border:1px solid var(--border);width:min(560px,100% - 24px);box-shadow:var(--shadow);z-index:20;text-align:left;border-radius:18px;gap:8px;padding:16px 18px;display:grid;position:fixed;transform:translate(-50%)}.ru-gloss-head{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.ru-gloss-word{font-size:1.35rem}.ru-gloss-form{color:var(--muted);font-size:.8rem}.ru-gloss-actions{gap:8px;margin-top:4px;display:flex}.ru-gloss-actions .ru-btn{padding:10px 14px;font-size:.72rem}.ru-paradigm{gap:24px;display:grid}.ru-search{border:none;border-bottom:1px solid var(--border);width:100%;font:inherit;color:var(--text);background:0 0;padding:12px 0;font-size:1.05rem}.ru-search:focus{border-color:#fff6;outline:none}.ru-tiles{flex-wrap:wrap;justify-content:center;gap:8px;min-height:52px;display:flex}.ru-tile{color:var(--text);font:inherit;cursor:pointer;background:0 0;border:1px solid #ffffff47;border-radius:10px;padding:10px 14px;font-size:1.05rem}.ru-tile.is-placed{background:var(--card)}.ru-built{border-bottom:1px solid var(--border);min-height:3.2em;padding-bottom:8px}.ru-diff del{color:#ffb3aa;text-decoration:line-through}.ru-diff ins{color:#bff0d0;text-decoration:none}.ru-empty{color:var(--muted);text-align:center;padding:32px 0;font-size:.95rem}.ru-field{gap:10px;display:grid}.ru-range{width:100%;accent-color:var(--accent-strong)}.ru-summary{text-align:center;gap:8px;display:grid}.ru-summary-value{font-size:3rem;font-weight:500;line-height:1}