:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--page:#fbfbfa;--surface:#fff;--ink:#141b29;--muted:#657082;--label:#758091;--line:#e4e7eb;--teal:#176e73;--teal-hover:#115a5e;color:var(--ink);background:var(--page);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0}button{font:inherit;cursor:pointer}button:disabled{cursor:wait;opacity:.65}button:focus-visible{outline:3px solid var(--teal);outline-offset:5px}.site-header{background:var(--surface);border-bottom:1px solid var(--line)}.header-inner{justify-content:space-between;align-items:center;gap:16px;max-width:1440px;min-height:78px;margin:0 auto;padding:16px 48px;display:flex}.brand{letter-spacing:-.8px;align-items:center;gap:12px;font-size:24px;font-weight:700;display:flex}.brand svg{flex-shrink:0;width:32px;height:32px}.brand{color:inherit;text-decoration:none}.account{align-items:center;gap:16px;display:flex}.catalog-link{color:var(--teal);white-space:nowrap;font-size:15px;font-weight:600}.catalog-link[aria-current=page]{text-underline-offset:4px;text-decoration:underline}.catalog-nav{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:16px;display:flex}.avatar{background:#e1e9e5;border-radius:50%;place-items:center;width:38px;height:38px;font-weight:600;display:grid}.display-name{color:#414b5b;text-overflow:ellipsis;white-space:nowrap;max-width:220px;font-size:16px;overflow:hidden}.logout{border:0;border-left:1px solid var(--line);color:#414b5b;background:0 0;min-height:44px;padding:8px 0 8px 20px;font-size:15px}.logout:hover:not(:disabled){color:var(--teal)}main{width:min(100% - 48px,648px);margin:0 auto}.intro{text-align:center;margin:68px 0 44px}h1{letter-spacing:-1.8px;margin:0 0 14px;font-size:48px;font-weight:700;line-height:1.15}.intro p{color:var(--muted);text-wrap:balance;margin:0;font-size:18px;line-height:1.6}.panel{background:var(--surface);border:1px solid #f1f2f1;border-radius:17px;box-shadow:0 7px 24px #141b290d,0 2px 5px #141b2905}.login-panel{text-align:center;max-width:520px;margin:58px auto 0;padding:62px 42px 48px}.login-panel h2{letter-spacing:-1.5px;margin:0 0 14px;font-family:Georgia,Times New Roman,serif;font-size:48px;font-weight:400;line-height:1.2}.login-panel p{color:var(--muted);margin:0 0 42px;font-size:18px;line-height:1.5}.google-login{background:var(--surface);width:100%;min-height:60px;color:var(--ink);border:1px solid #d6dce3;border-radius:11px;justify-content:center;align-items:center;gap:14px;padding:14px 20px;font-size:18px;font-weight:600;display:flex}.google-login svg{flex-shrink:0;width:24px;height:24px}.google-login:hover:not(:disabled){border-color:var(--teal);background:#f7faf9}.word-card{padding:36px 42px 42px}.language{color:var(--label);letter-spacing:2px;margin:0;font-size:12px;font-weight:600;line-height:1.5}.word{letter-spacing:-2px;text-align:center;overflow-wrap:anywhere;margin:22px 0 42px;font-family:Georgia,Times New Roman,serif;font-size:84px;font-weight:400;line-height:1.15}.next-word{background:var(--teal);color:#fff;border:0;border-radius:14px;justify-content:center;align-items:center;gap:20px;width:100%;min-height:64px;margin-top:24px;padding:16px 24px;font-size:18px;font-weight:600;display:flex}.next-word svg{width:24px;height:24px}.next-word:hover:not(:disabled){background:var(--teal-hover)}.next-word:active:not(:disabled){background:#0d4d51}footer{border-top:1px solid var(--line);width:min(100% - 48px,544px);color:var(--muted);text-align:center;margin:64px auto 30px;padding-top:22px}footer p{margin:0;font-size:14px;line-height:1.6}@media (max-width:600px){.header-inner{flex-wrap:wrap;min-height:70px;padding:12px 22px}.brand{letter-spacing:-.6px;gap:9px;font-size:20px}.brand svg{width:27px;height:27px}.account{flex-wrap:wrap;justify-content:flex-end;gap:8px 12px}.avatar,.display-name{display:none}.logout{border:0;padding:8px 0;font-size:14px}main{width:calc(100% - 40px)}.intro{margin:44px 0 30px}h1{letter-spacing:-1.3px;margin-bottom:14px;font-size:36px}.intro p{font-size:16px}.word-card{border-radius:15px;padding:28px 26px 30px}.word{letter-spacing:-1.7px;margin:22px 0 32px;font-size:54px}.next-word{border-radius:12px;min-height:60px;margin-top:20px;font-size:17px}.login-panel{margin-top:38px;padding:46px 24px 36px}.login-panel h2{font-size:40px}.login-panel p{margin-bottom:34px;font-size:17px}.google-login{gap:12px;padding:14px 12px;font-size:16px}footer{width:calc(100% - 56px);margin-top:42px;padding-top:20px}}.status-panel{min-height:228px;color:var(--muted);text-align:center;place-items:center;padding:40px 24px;display:grid}.status-panel p{margin:0;font-size:18px;line-height:1.6}.error-message{color:#a5322e;background:#fff3f2;border-left:3px solid #a5322e;border-radius:8px;margin:0 0 24px;padding:14px 18px;font-size:16px;line-height:1.5}.mode-buttons{flex-wrap:wrap;gap:12px;margin-bottom:20px;display:flex}.word-stats{color:var(--muted);flex-wrap:wrap;gap:8px 24px;margin-bottom:20px;font-size:15px;display:flex}.word-stats p{margin:0}.word-stats strong{color:var(--teal)}.mode-buttons button{border:1px solid var(--line);background:var(--surface);min-height:46px;color:var(--muted);border-radius:10px;flex:140px;padding:10px 16px}.mode-buttons button[aria-pressed=true]{border-color:var(--teal);color:var(--teal);font-weight:600}.practice-rules{color:var(--muted);margin:0 0 20px;font-size:14px;line-height:1.6}.practice-form{border-top:1px solid var(--line);gap:14px;padding-top:24px;display:grid}.practice-form label{color:var(--muted);font-size:15px}.practice-form input,.practice-form textarea{border:1px solid var(--line);width:100%;min-height:48px;font:inherit;border-radius:8px;padding:12px;font-size:18px}.practice-form textarea{resize:vertical;min-height:120px;line-height:1.6}.practice-form input:focus-visible,.practice-form textarea:focus-visible{outline:2px solid var(--teal);outline-offset:2px}.submit-answer{background:var(--teal);color:#fff;border:0;border-radius:8px;min-height:46px;padding:10px 16px}.submit-answer:hover:not(:disabled){background:var(--teal-hover)}.practice-actions{flex-wrap:wrap;gap:12px;display:flex}.practice-actions button{flex:180px}.dont-know{border:1px solid var(--line);background:var(--surface);min-height:46px;color:var(--ink);border-radius:8px;padding:10px 16px}.dont-know:hover:not(:disabled){border-color:var(--teal);color:var(--teal)}.practice-result{border-top:1px solid var(--line);margin-top:22px;padding-top:16px;line-height:1.6}.practice-result p{margin:0}.practice-result p+p{color:var(--muted);margin-top:8px;font-size:14px}.sentence-prompt{overflow-wrap:anywhere;white-space:pre-wrap;margin:22px 0 32px;font-size:28px;line-height:1.6}.sentence-reference{border-top:1px solid var(--line);margin-top:24px;padding-top:24px}.sentence-reference p:last-child{overflow-wrap:anywhere;white-space:pre-wrap;margin:12px 0 0;font-size:21px;line-height:1.6}main.catalog-main{width:min(100% - 48px,920px)}.catalog-count{color:var(--muted);margin:0 0 16px}.catalog-list{gap:12px;margin:0;padding:0;list-style:none;display:grid}.catalog-item{justify-content:space-between;align-items:center;gap:24px;padding:20px 24px;display:flex}.catalog-text{min-width:0}.catalog-text h2{overflow-wrap:anywhere;margin:0 0 6px;font-size:22px;font-weight:600}.catalog-text p{color:var(--muted);overflow-wrap:anywhere;margin:0;font-size:17px;line-height:1.5}.catalog-text .review-time{margin-top:8px;font-size:14px}.catalog-add,.catalog-retry{background:var(--teal);color:#fff;border:0;border-radius:9px;flex-shrink:0;min-height:44px;padding:10px 16px;font-size:15px;font-weight:600}.catalog-add:hover:not(:disabled),.catalog-retry:hover:not(:disabled){background:var(--teal-hover)}.catalog-add:disabled{cursor:default}.catalog-remove{background:var(--surface);color:#a5322e;border:1px solid #b64c43;border-radius:9px;flex-shrink:0;min-height:44px;padding:10px 16px;font-size:15px;font-weight:600}.catalog-remove:hover:not(:disabled){background:#fff3f2}.catalog-pages{flex-wrap:wrap;justify-content:center;gap:8px;margin:28px 0;display:flex}.catalog-pages button{border:1px solid var(--line);background:var(--surface);min-width:42px;min-height:42px;color:var(--ink);border-radius:8px;padding:8px 12px}.catalog-pages button[aria-current=page]{border-color:var(--teal);color:var(--teal);font-weight:700}.catalog-pages button:hover:not(:disabled){border-color:var(--teal)}@media (max-width:600px){main.catalog-main{width:calc(100% - 40px)}.catalog-item{flex-direction:column;align-items:stretch;gap:14px;padding:18px 20px}.catalog-add,.catalog-remove{width:100%}.catalog-link{font-size:14px}}