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textarea{flex:1;min-height:44px}.chat-actions{display:flex;flex-direction:column;gap:6px}.hint{color:var(--muted);font-size:13px;line-height:1.5}.hint.status{margin-top:10px}.error{color:var(--red);font-size:13px;margin-top:8px;padding:10px 12px;border-radius:10px;border:1px solid rgba(242,85,90,.3);background:#f2555a14;animation:rise .2s ease both}.range-val{color:var(--text);font-weight:600}.grow{flex:1;min-width:140px}.retry-btn{margin-top:16px}.link-btn{background:none;border:none;padding:0;font:inherit;color:var(--primary);cursor:pointer;text-decoration:underline}.card-search{width:100%;margin:0 0 12px;box-sizing:border-box}.vlist-item{margin-bottom:8px}.review-progress{display:flex;align-items:center;gap:10px;margin-bottom:14px}.rp-track{flex:1;height:6px;background:var(--surface-2);border-radius:999px;overflow:hidden}.rp-fill{height:100%;background:var(--grad-accent);border-radius:999px;box-shadow:0 0 10px #5b9bff80;transition:width .3s ease}.rp-label{flex-shrink:0;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.backup-banner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;padding:12px 16px;margin-bottom:14px;border:1px solid rgba(245,200,76,.32);background:#f5c84c12;color:var(--text);border-radius:var(--radius);font-size:14px;animation:rise .25s ease both}.challenge{--ch-blue: #5b9bff;--ch-green: #4ade5f;--ch-red: #ff4d4d;display:flex;flex-direction:column;gap:16px}.ch-bar{height:10px;background:var(--surface-2);border-radius:999px;overflow:hidden}.ch-bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--ch-green),#22c55e);box-shadow:0 0 12px #4ade5f66;transition:width .4s cubic-bezier(.2,.9,.3,1)}.ch-hud{display:flex;align-items:center;justify-content:space-between;gap:12px}.ch-hud-right{display:flex;align-items:center;gap:10px}.ch-level{font-size:20px;font-weight:800;letter-spacing:-.3px}.ch-lives{font-size:19px;font-weight:800;white-space:nowrap;font-variant-numeric:tabular-nums}.ch-ear{width:42px;height:42px;border-radius:12px;cursor:pointer;font-size:19px;border:2px solid var(--border-strong);background:var(--surface);color:var(--text);display:grid;place-items:center;transition:all .15s ease}.ch-ear.on{border-color:var(--ch-blue);background:#5b9bff2e}.ch-toast{padding:12px;border-radius:14px;text-align:center;font-size:17px;font-weight:800;background:var(--surface-2);border:2px solid var(--border-strong);box-shadow:var(--shadow-1);animation:ch-pop .25s ease}@keyframes ch-pop{0%{opacity:0;transform:translateY(-6px)}}.ch-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.ch-col{display:flex;flex-direction:column;gap:12px}.ch-tile{min-height:76px;padding:14px 10px;cursor:pointer;display:grid;place-items:center;font-family:inherit;font-size:23px;font-weight:800;line-height:1.15;letter-spacing:-.2px;text-align:center;overflow-wrap:anywhere;color:var(--text);background:var(--surface-2);border:2px solid #394152;border-bottom-width:5px;border-bottom-color:#11141a;border-radius:18px;transition:transform .06s ease,background .15s ease,border-color .15s ease,opacity .3s ease,color .15s ease}.ch-tile:active:not(:disabled){transform:translateY(3px);border-bottom-width:2px}.ch-tile.en{color:#8fbcff;border-color:#37527d;border-bottom-color:#161f30}.ch-tile.sel{border-color:#6ea4ff;border-bottom-color:#2f6ad0;background:#5b9bff4d;color:#fff}.ch-tile.bad{border-color:var(--ch-red);border-bottom-color:#a11d1d;background:#ff4d4d42;color:#fff;animation:ch-shake .4s ease}@keyframes ch-shake{0%,to{transform:translate(0)}20%{transform:translate(-7px)}60%{transform:translate(7px)}}.ch-tile.done{opacity:.14;border-color:transparent;border-bottom-width:2px;background:transparent;cursor:default;pointer-events:none}.ch-restart{align-self:center;margin-top:2px;padding:8px 14px;background:none;border:none;cursor:pointer;font-family:inherit;color:var(--muted);font-size:13px;text-decoration:underline}@media(max-width:480px){.ch-tile{min-height:68px;font-size:21px;border-radius:16px}.ch-grid,.ch-col{gap:10px}.ch-level{font-size:18px}}.ch-rank{display:flex;gap:8px;overflow-x:auto;padding:2px;scrollbar-width:none}.ch-rank::-webkit-scrollbar{display:none}.ch-rank-item{display:inline-flex;align-items:center;gap:6px;white-space:nowrap;padding:7px 11px;border-radius:999px;font-size:13px;background:var(--surface-2);border:1px solid var(--border);color:var(--muted)}.ch-rank-item b{color:var(--text);font-weight:700}.ch-rank-item i{font-style:normal;color:var(--text);font-weight:700}.ch-rank-item i:before{content:"nv ";color:var(--muted);font-weight:500}.ch-rank-item.me{border-color:var(--primary);color:var(--text);background:#5b9bff1f}.rk-scope{display:flex;gap:8px;margin:14px 0 10px}.rk-scope-btn{flex:1;padding:10px;min-height:44px;cursor:pointer;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;color:var(--muted);font-family:inherit;font-size:14px;font-weight:600;transition:border-color .15s,color .15s,background .15s}.rk-scope-btn.active{border-color:var(--primary);color:var(--primary);background:#5b9bff1a}.rk-table{width:100%;border-collapse:collapse;font-size:14px}.rk-table th{text-align:left;padding:8px 6px;font-size:12px;font-weight:600;color:var(--muted);border-bottom:1px solid var(--border)}.rk-table td{padding:11px 6px;border-bottom:1px solid var(--border)}.rk-table tr:last-child td{border-bottom:none}.rk-pos{white-space:nowrap;color:var(--muted);width:1%}.rk-medal{margin-right:5px}.rk-pos-num{font-weight:700;color:var(--text);font-variant-numeric:tabular-nums}.rk-name{font-weight:600;overflow-wrap:anywhere}.rk-lvl,.rk-words{text-align:right;font-variant-numeric:tabular-nums;width:1%}.rk-lvl{font-weight:700}.rk-words{color:var(--muted)}.rk-act{width:1%;text-align:right}.rk-me td{background:#5b9bff1a}.rk-me td:first-child{box-shadow:inset 3px 0 0 var(--primary)}.rk-tag{margin-left:6px;padding:2px 7px;border-radius:999px;background:var(--grad-accent);color:#fff;font-size:11px;font-weight:700}.rk-detached td{border-top:2px dashed var(--border-strong)}.rk-btn{min-width:44px;min-height:44px;cursor:pointer;font-size:16px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;color:var(--text);transition:border-color .15s,background .15s}.rk-btn:hover{border-color:var(--border-strong)}.rk-btn:disabled{opacity:.45;cursor:not-allowed}.rk-btn.on{color:var(--red);border-color:#f2555a59}.rk-btn.on:hover{background:#f2555a1a;border-color:var(--red)}.rk-input{flex:1;min-width:140px;padding:12px;font-size:15px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;color:var(--text)}.rk-whoami{margin:10px 0 0}.rk-name-panel{margin:12px 0 0}.rk-name-panel label,.rk-search label{display:block;margin-bottom:6px;font-size:13px;color:var(--muted)}.rk-search{margin-top:22px;padding-top:16px;border-top:1px solid var(--border)}.rk-empty{text-align:center;padding:26px 10px;color:var(--muted)}.rk-empty p{margin:0 0 14px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:480px){.rk-words,.rk-table th:nth-child(4){display:none}}@media(max-width:560px){.app{padding:18px 12px 56px}nav.tabs{gap:2px;padding:4px;overflow-x:auto;scrollbar-width:none}nav.tabs::-webkit-scrollbar{display:none}nav.tabs button{flex:1 0 auto;flex-direction:column;gap:3px;padding:8px 9px;font-size:10.5px;min-height:52px}.tab-ico{font-size:17px}.card-face{padding:32px 18px}.grade-row{gap:8px}.grade{padding:14px 4px;font-size:14px;min-height:54px}.grade small{font-size:10px}.item .actions button{min-height:44px;min-width:44px}.deck-chip,.deck-edit{min-height:40px}.speak,.vo-play{min-height:40px;min-width:40px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}