.letter-btn{padding:10px 15px;border:2px solid #444;background:#2a2a2a;border-radius:6px;cursor:pointer;font-weight:600;transition:all .3s;font-size:.95em;color:#fff}.letter-btn:hover{border-color:#667eea;background:#667eea;color:white}.letter-btn.active{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:white;border-color:#764ba2}.letter-btn.no-terms{opacity:.5;cursor:not-allowed}.letter-btn.no-terms:hover{border-color:#444;background:#2a2a2a;color:#fff}.glossary-table td{padding:18px 20px;border-bottom:1px solid #333;word-wrap:break-word;overflow-wrap:break-word}.glossary-table tbody tr{transition:background-color .2s}.glossary-table tbody tr:hover{background-color:#252525}.glossary-table tbody tr:nth-child(even){background-color:#202020}.term-column{font-weight:600;color:#fff!important;min-width:150px;word-wrap:break-word;overflow-wrap:break-word;hyphens:auto;-webkit-hyphens:auto;-moz-hyphens:auto}.definition-column{color:#ccc;line-height:1.6;word-wrap:break-word;overflow-wrap:break-word;hyphens:auto;-webkit-hyphens:auto;-moz-hyphens:auto}.highlight{background-color:#667eea!important;color:#fff!important;padding:2px 4px;border-radius:3px;font-weight:700}.pagination .page-info{font-weight:600;color:#fff;margin:0 15px}.letter-section-title{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:white;padding:15px 20px;margin-top:20px;border-radius:6px;font-size:1.3em;font-weight:700}@media (max-width:768px){.letter-btn{padding:8px 12px;font-size:.85em}.glossary-table td{padding:12px 10px;font-size:.9em}.term-column{min-width:100px;font-size:.9em}.definition-column{font-size:.9em;line-height:1.5}.pagination .page-info{margin:0 10px;font-size:.9em}}@media (max-width:480px){.letter-btn{padding:7px 10px;font-size:.75em}.glossary-table td{padding:10px 8px;font-size:.8em}.term-column{min-width:80px;font-size:.8em}.definition-column{font-size:.8em;line-height:1.4}.pagination .page-info{margin:0 5px;font-size:.8em}}@media (max-width:360px){.letter-btn{padding:6px 8px;font-size:.7em}.term-column{min-width:60px}}