.formula{padding:22px;border-left:4px solid #0f766e;background:#e6f1ee;font:600 17px/1.7 Georgia,serif;overflow:auto}.translation{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0}.translation div{padding:14px;background:#f2eee6;border:1px solid #d8d1c4}.translation b,.translation span{display:block}.translation span{margin-top:6px;color:#52616b;font-size:13px}.lesson{margin:30px 0;padding:30px;background:#fff;border:1px solid #d7dde0;border-top:4px solid #0f766e;box-shadow:0 12px 30px rgba(15,23,42,.07)}.lesson h3{font-size:28px}.lesson button{padding:12px 18px;border:0;background:#0b3b45;color:#fff;font-weight:700;cursor:pointer}.lesson pre{max-height:340px;padding:18px;background:#071827;color:#d7f5ef;overflow:auto;white-space:pre-wrap}.result{overflow:auto}.result table{width:100%;margin-top:16px;border-collapse:collapse}.result th,.result td{padding:10px;border:1px solid #d7dde0;text-align:left}.result th{background:#e6efed}.result small{display:block;margin-top:10px;color:#60717a}.compare{display:flex;gap:12px;flex-wrap:wrap}.compare a{padding:12px 16px;background:#0b3b45;color:white}@media(max-width:700px){.translation{grid-template-columns:1fr 1fr}.lesson{padding:20px}}