:root{--bg:#fafaf9;--fg:#1c1917;--muted:#78716c;--border:#d6d3d1;--surface:#fff;--accent:#2563eb;--accent-fg:#fff;--right:#16a34a;--right-bg:#dcfce7;--wrong:#dc2626;--wrong-bg:#fee2e2;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#1c1917;--fg:#f5f5f4;--muted:#a8a29e;--border:#44403c;--surface:#292524;--accent:#3b82f6;--right:#4ade80;--right-bg:#14532d;--wrong:#f87171;--wrong-bg:#7f1d1d}}*{box-sizing:border-box}body{background:var(--bg);color:var(--fg);margin:0}main{max-width:480px;margin:0 auto;padding:16px}h1,h2,p{margin:0}hr{border:none;border-top:1px solid var(--border);width:100%}a{color:var(--accent)}.stack{flex-direction:column;gap:12px;display:flex}.gap-lg{gap:24px}.muted{color:var(--muted)}.error{color:var(--wrong)}.ok{color:var(--right)}.nav{border-bottom:1px solid var(--border);align-items:center;gap:16px;max-width:480px;margin:0 auto;padding:12px 16px;display:flex}.nav a{color:var(--muted);padding:8px 0;text-decoration:none}.nav a.active{color:var(--fg);font-weight:600}.nav .link{margin-left:auto}label{color:var(--muted);flex-direction:column;gap:4px;font-size:14px;display:flex}input,textarea{font:inherit;color:var(--fg);background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:10px 12px;font-size:16px}button{font:inherit;cursor:pointer}button:disabled{cursor:default}button.primary{background:var(--accent);min-height:44px;color:var(--accent-fg);border:none;border-radius:8px;font-weight:600}button.primary:disabled{opacity:.5}button.link{color:var(--muted);background:0 0;border:none;padding:8px 0}.word{overflow-wrap:anywhere;font-size:28px}.choice{text-align:left;border:1px solid var(--border);background:var(--surface);min-height:44px;color:var(--fg);overflow-wrap:anywhere;border-radius:8px;padding:12px 14px}.choice.right{border-color:var(--right);background:var(--right-bg)}.choice.wrong{border-color:var(--wrong);background:var(--wrong-bg)}.choice.dim{opacity:.5}.small{font-size:13px}.row{gap:8px;display:flex}.row>button{flex:1}button.secondary{border:1px solid var(--border);background:var(--surface);min-height:44px;color:var(--fg);border-radius:8px}.word-list{flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.word-list>li{border-bottom:1px solid var(--border);padding:4px 0}.word-list form{padding:8px 0}.word-item{text-align:left;width:100%;min-height:44px;color:var(--fg);overflow-wrap:anywhere;background:0 0;border:none;flex-direction:column;gap:2px;padding:8px 0;display:flex}