:root{--text: #2d2d2d;--text-muted: #6b6b6b;--bg: #fafafa;--surface: #fff;--border: #e0e0e0;--accent: #1a5f4a;--accent-hover: #134536}@media(prefers-color-scheme:dark){:root{--text: #e8e8e8;--text-muted: #9a9a9a;--bg: #1a1a1a;--surface: #242424;--border: #3a3a3a;--accent: #4ecca3;--accent-hover: #6fe4bb}}*{box-sizing:border-box}html{font-size:17px}body{font-family:Noto Sans,Noto Sans JP,Noto Sans KR,Noto Sans Greek,system-ui,sans-serif;line-height:1.7;color:var(--text);background:var(--bg);max-width:1100px;margin:0 auto;padding:2rem;position:relative}.lang-nav{position:absolute;top:2rem;right:2rem;display:flex;gap:.15rem;font-size:.75rem}.lang-nav a,.lang-nav span{padding:.25rem .5rem;border-radius:3px;text-decoration:none;transition:all .15s ease}.lang-nav a{color:var(--text-muted);background:transparent}.lang-nav a:hover{color:var(--text);background:var(--surface);text-decoration:none}.lang-nav span{color:var(--text);background:var(--surface);border:1px solid var(--border);font-weight:600}header{max-width:650px;margin-bottom:2.5rem}h1{font-size:2.2rem;font-weight:600;letter-spacing:-.02em;line-height:1.2;margin:0 0 1.5rem}p{margin:0 0 1rem}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover);text-decoration:underline}.transform-container{display:grid;grid-template-columns:1fr auto 1fr;grid-template-rows:auto 1fr;gap:.75rem 1rem;margin-bottom:2rem}.input-box{grid-column:1;grid-row:2}.flow-arrow{grid-column:2;grid-row:2;font-size:1.5rem;color:var(--accent);-webkit-user-select:none;user-select:none;display:flex;align-items:center;justify-content:center}.alphabet-pills{grid-column:3;grid-row:1;display:flex;flex-wrap:wrap;gap:.5rem}.alphabet-pill{padding:.3rem .7rem;border:1px solid var(--border);border-radius:2rem;background:var(--surface);color:var(--text-muted);font-size:.8rem;font-family:inherit;cursor:pointer;transition:all .15s ease}.alphabet-pill:hover{border-color:var(--accent);color:var(--text)}.alphabet-pill.selected{background:var(--accent);border-color:var(--accent);color:#fff}.output-panel{grid-column:3;grid-row:2;position:relative}.output-actions{position:absolute;bottom:.5rem;right:.5rem;display:flex;gap:.25rem}.output-btn{padding:.4rem;border:1px solid var(--border);border-radius:4px;background:var(--surface);color:var(--text-muted);cursor:pointer;transition:all .15s ease;display:flex;align-items:center;justify-content:center}.output-btn:hover{color:var(--accent);border-color:var(--accent)}.output-btn svg{display:block}.output-box{width:100%;height:100%;padding-bottom:2.5rem}textarea{font-family:inherit;font-size:.9rem;width:100%;height:100%;padding:.75rem 1rem;border:1px solid var(--border);border-radius:6px;background:var(--surface);color:var(--text);transition:border-color .15s ease;min-height:380px;resize:vertical;line-height:1.6}textarea:focus{outline:none;border-color:var(--accent)}.note{font-size:.9rem;color:var(--text-muted);font-style:italic;max-width:650px}#contributing{max-width:650px}footer{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--border);text-align:center}.social{display:flex;justify-content:center;gap:.5rem}.social a{padding:.5rem;opacity:.6;transition:opacity .15s ease}.social a:hover{opacity:1}.social img{width:22px;height:22px}@media(prefers-color-scheme:dark){.social img{filter:invert(1)}}@media(max-width:768px){body{padding:1.5rem}.lang-nav{position:static;margin-bottom:1.5rem}.transform-container{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto auto;gap:.75rem}.input-box{grid-column:1 / 3;grid-row:1}.flow-arrow{grid-column:1;grid-row:2;font-size:1.25rem;align-self:center;transform:rotate(90deg)}.alphabet-pills{grid-column:2;grid-row:2;justify-content:flex-start}.output-panel{grid-column:1 / 3;grid-row:3}textarea{min-height:180px;height:auto}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;display:none;align-items:center;justify-content:center;z-index:1000;padding:2rem}.modal-overlay.active{display:flex}.modal{background:var(--bg);border-radius:8px;width:100%;max-width:1100px;max-height:90vh;display:flex;flex-direction:column;box-shadow:0 20px 60px #0000004d}.modal-header{display:flex;justify-content:flex-end;padding:.75rem 1rem;border-bottom:1px solid var(--border)}.modal-close{padding:.4rem;border:none;border-radius:4px;background:transparent;color:var(--text-muted);cursor:pointer;transition:all .15s ease;display:flex;align-items:center;justify-content:center}.modal-close:hover{color:var(--text);background:var(--surface)}.modal-content{padding:1.5rem 2rem 2rem;overflow-y:auto;font-family:inherit;font-size:1rem;line-height:1.8;white-space:pre-wrap;color:var(--text)}