.center{max-width:1400px;margin:0 auto;padding:20px}.header{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;-webkit-box-align:center;-ms-flex-align:center;align-items:center;margin-bottom:30px;padding-bottom:20px;border-bottom:3px solid #333}.header h1{margin:0;font-size:2em}.title-block{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;gap:6px}.subtitle{margin:0;color:#4d4d4d;font-size:1rem}.contribute-btn{display:inline-block;padding:12px 24px;background-color:#06c;color:#fff;text-decoration:none;border-radius:5px;font-weight:500;-webkit-transition:background-color .3s ease;transition:background-color .3s ease}.contribute-btn:hover{background-color:#0052a3}.language-header{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:12px 10px;background-color:#f5f5f5;margin-bottom:30px;position:sticky;top:0;z-index:10}.lang-col{font-weight:700;font-size:1.1em}.category-section{margin-bottom:40px;-webkit-column-break-inside:avoid;-moz-column-break-inside:avoid;break-inside:avoid}.category-title{font-size:1.5em;color:#06c;margin:0 0 15px 0;padding-bottom:8px;border-bottom:2px solid #06c}.words-list{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column}.word-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:8px 10px;border-bottom:1px solid #ddd}.word-row:hover{background-color:#f9f9f9}.word-cell{padding:2px 0}.footer{margin-top:60px;padding:20px 0;border-top:2px solid #ddd;text-align:center;color:#666}.footer a{color:#06c;text-decoration:none}.footer a:hover{text-decoration:underline}@media (max-width:1200px){tbody{-webkit-column-count:2;-moz-column-count:2;column-count:2}}@media (max-width:768px){.header{-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;gap:15px;text-align:center}.header h1{font-size:1.5em}.subtitle{font-size:.95rem}.language-header{position:relative}}