.ln-chip{border:2px solid var(--border,#1d2233);background:var(--card,#fff);border-radius:999px;align-items:center;gap:6px;min-height:44px;padding:8px 14px;font-weight:700;display:inline-flex}.ln-chip[aria-pressed=true]{background:var(--yellow,#ffd23f)}.ln-btn{border:2px solid var(--border,#1d2233);background:var(--yellow,#ffd23f);min-height:52px;box-shadow:3px 3px 0 var(--border,#1d2233);border-radius:14px;padding:10px 22px;font-size:18px;font-weight:900}.ln-btn.alt{background:var(--card,#fff)}.ln-btn.go{background:#7dd87a}.ln-btn:active{box-shadow:1px 1px 0 var(--border,#1d2233);transform:translate(2px,2px)}.ln-box{border:2px solid var(--border,#1d2233);background:var(--card,#fff);box-shadow:4px 4px 0 var(--border,#1d2233);border-radius:20px;padding:18px}.ln-big{text-align:center;word-break:break-word;margin:10px 0;font-size:clamp(44px,12vw,92px);font-weight:900;line-height:1.1}.ln-input{text-align:center;border:2px solid var(--border,#1d2233);background:#fff;border-radius:14px;width:100%;max-width:420px;padding:10px;font-size:28px}.ln-text{font-size:20px;line-height:1.9}.ln-text.is-big{font-size:26px}.ln-text p{margin:0 0 12px}.ln-dict-word{font:inherit;color:inherit;cursor:pointer;text-underline-offset:5px;background:0 0;border:0;min-height:0;padding:0;-webkit-text-decoration:underline dotted #0284c7;text-decoration:underline dotted #0284c7;text-decoration-thickness:2px;display:inline}.ln-dict-word:hover,.ln-dict-word:focus-visible{background:#e0f2fe;border-radius:4px}.ln-q{border:2px solid var(--border,#1d2233);background:var(--card,#fff);border-radius:16px;padding:12px 14px}.ln-opt{text-align:right;background:#fff;border:2px solid #cfd3e0;border-radius:12px;width:100%;min-height:44px;margin-top:6px;padding:8px 12px;font-size:17px;display:block}.ln-opt[aria-pressed=true]{border-color:var(--border,#1d2233);background:#fff6d1}.ln-opt.is-right{background:#d6f5d1;border-color:#2e9e2b}.ln-opt.is-wrong{background:#ffe0e0;border-color:#d33}.ln-res{flex-wrap:wrap;justify-content:center;gap:6px;display:flex}.ln-res span{border-radius:10px;padding:4px 10px;font-weight:700}.ln-res .ok{background:#d6f5d1}.ln-res .no{background:#ffe0e0}.ln-ex{text-align:center;direction:ltr;font-size:clamp(52px,14vw,96px);font-weight:900;line-height:1.1}.ln-ex .ans{border-bottom:5px solid;min-width:1.6em;margin-inline-start:.2em;display:inline-block}.ln-ex.flash-ok{color:#2e9e2b}.ln-ex.flash-no{color:#d33}.ln-pad{direction:ltr;grid-template-columns:repeat(3,1fr);gap:8px;max-width:340px;margin:12px auto 0;display:grid}.ln-pad button{border:2px solid var(--border,#1d2233);min-height:62px;box-shadow:2px 2px 0 var(--border,#1d2233);touch-action:manipulation;background:#fff;border-radius:14px;font-size:28px;font-weight:900}.ln-pad button:active{background:var(--yellow,#ffd23f)}.ln-bar{background:#e6e8ef;border-radius:99px;height:12px;overflow:hidden}.ln-bar i{background:#7548b3;height:100%;transition:width .25s linear;display:block}.ln-grid{direction:ltr;grid-template-columns:repeat(11,minmax(0,1fr));gap:2px;max-width:560px;margin:0 auto;font-size:clamp(12px,2.6vw,17px);font-weight:700;display:grid}.ln-grid button,.ln-grid span{aspect-ratio:1;background:#f1f2f6;border-radius:6px;justify-content:center;align-items:center;display:flex}.ln-grid .h{color:#fff;background:#1d2233}.ln-grid .on{background:#fff0b3}.ln-grid .hit{background:#ffd23f}.ln-card{perspective:1000px;aspect-ratio:3/2;cursor:pointer;-webkit-tap-highlight-color:transparent;width:min(100%,420px);margin:0 auto}.ln-card-in{width:100%;height:100%;transform-style:preserve-3d;transition:transform .45s;position:relative}.ln-card.is-flip .ln-card-in{transform:rotateY(180deg)}.ln-face{text-align:center;border:3px solid var(--border,#1d2233);backface-visibility:hidden;box-shadow:5px 5px 0 var(--border,#1d2233);background:#fff;border-radius:22px;justify-content:center;align-items:center;padding:16px;font-size:clamp(28px,8vw,52px);font-weight:900;display:flex;position:absolute;inset:0}.ln-face.back{background:#fff6d1;transform:rotateY(180deg)}.ln-face small{top:10px;color:#777;font-size:13px;font-weight:700;position:absolute;inset-inline-start:14px}.ln-ta{border:2px solid var(--border,#1d2233);background:#fff;border-radius:12px;width:100%;min-height:140px;padding:10px;font-size:16px}@media (prefers-reduced-motion:reduce){.ln-card-in{transition:none}}.ln-print h2{text-align:center;margin:0 0 6px;font-size:22pt}.ln-print .meta{justify-content:space-between;gap:16px;margin-bottom:10px;font-size:12pt;display:flex}.ln-print .lines li{border-bottom:1px solid #999;height:12mm;padding-inline-start:4px;font-size:13pt;line-height:16mm}.ln-print .lines{margin:0;padding-inline-start:26px}.ln-print .key{columns:2;font-size:14pt}.ln-print .txt p{margin:0 0 6px;font-size:13pt;line-height:1.75}.ln-print .qs>li{break-inside:avoid;margin:8px 0}.ln-print .qs ul{grid-template-columns:1fr 1fr;gap:2px 14px;margin:2px 0 0;padding:0;list-style:none;display:grid}.ln-print .write{border-bottom:1px solid #999;height:10mm}.ln-hub-jump{flex-wrap:wrap;justify-content:center;gap:8px;margin:0 0 8px;display:flex}.ln-hub-sec{margin-top:34px;scroll-margin-top:90px}.ln-hub-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 12px;margin-bottom:12px;display:flex}.ln-hub-head h2{margin:0;font-size:clamp(24px,4vw,32px);font-weight:900}.ln-hub-all{color:#1b6fa8;white-space:nowrap;font-weight:800;text-decoration:underline}.ln-hub-grades{grid-template-columns:repeat(6,1fr);gap:8px;margin-bottom:14px;display:grid}@media (width>=1024px){.ln-hub-grades{grid-template-columns:repeat(12,1fr)}.ln-hub-grades .ln-chip{white-space:nowrap;padding:6px 2px;font-size:15px}}.ln-hub-grades .ln-chip{background:#e3f3ff;justify-content:center;padding:8px 6px}.ln-hub-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin:0;padding:0;list-style:none;display:grid}.ln-hub-card{border:2px solid var(--border,#1d2233);background:var(--card,#fff);height:100%;min-height:64px;box-shadow:3px 3px 0 var(--border,#1d2233);border-radius:16px;align-items:center;gap:12px;padding:10px 14px;transition:transform .15s;display:flex}.ln-hub-card:hover{transform:translateY(-2px)}.ln-hub-card b{font-size:17px;line-height:1.3;display:block}.ln-hub-card small{color:var(--muted-foreground,#5b6275);margin-top:2px;font-size:14px;line-height:1.35;display:block}.ln-hub-ico{text-align:center;flex-shrink:0;width:36px;font-size:28px}@media (width<=520px){.ln-hub-grid{grid-template-columns:1fr}.ln-hub-grades{grid-template-columns:repeat(4,1fr);gap:6px}.ln-hub-grades .ln-chip{white-space:nowrap;padding:6px 2px;font-size:14px}.ln-hub-jump{scrollbar-width:none;flex-wrap:nowrap;justify-content:flex-start;margin-inline:-16px;padding:2px 16px 6px;overflow-x:auto}.ln-hub-jump .ln-chip{flex-shrink:0;min-height:40px;padding:6px 12px;font-size:15px}}.tile-grid{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.tile-grid>*{flex:0 0 calc(50% - 6px)}@media (width>=640px){.tile-grid{gap:16px}.tile-cols-3>*,.tile-cols-4>*{flex-basis:calc(33.333% - 11px)}.tile-cols-1>*{flex-basis:min(100%,420px)}.tile-cols-2>*{flex-basis:calc(50% - 8px)}}@media (width>=1024px){.tile-cols-4>*{flex-basis:calc(25% - 12px)}}