:root{font:16px system-ui,sans-serif;color:#1d3047;background:#f1f5f9}*{box-sizing:border-box}body{margin:0}header{background:#172b44;color:white;padding:20px 26px;display:flex;align-items:center;justify-content:space-between;gap:12px}h1{font-size:23px;margin:0}h2{font-size:20px}button{padding:11px 16px;border:1px solid #bfd0e2;background:#fff;color:#1d3047;border-radius:8px;cursor:pointer}button:hover{background:#e8f2fc}input,textarea{width:100%;padding:12px;border:1px solid #bdcbd9;border-radius:7px;font:inherit;background:white}label{display:block;margin:12px 0}textarea{resize:vertical}form button{background:#2367b3;color:white}form button:hover{background:#195897}section{background:white;border-radius:12px;padding:22px;margin-bottom:18px}#login{max-width:490px;margin:45px auto}#message{padding:0 24px;color:#a33425;white-space:pre-wrap}#message:not(:empty){padding:15px 24px}main{display:grid;grid-template-columns:270px minmax(0,1fr);gap:22px;padding:22px;max-width:1600px;margin:auto}aside{background:white;padding:16px;border-radius:12px;align-self:start;position:sticky;top:15px;max-height:90vh;overflow:auto}#stock-list button{width:100%;text-align:left;margin-top:9px}.active{background:#d8eafb;border-color:#286abd}.muted,small{color:#64768b;font-size:13px;line-height:1.6}small{display:block;margin-top:4px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}.check input{width:auto}img{width:100%;height:auto}.facts{display:flex;gap:12px;flex-wrap:wrap}.facts div{padding:14px;background:#eef5fc;border-radius:8px}.facts strong{display:block;margin-top:6px}.positive{color:#c52a31}.negative{color:#205fbb}p,li{line-height:1.7}[hidden]{display:none!important}@media(max-width:850px){main{grid-template-columns:1fr;padding:12px}aside{position:static;max-height:260px}section{padding:16px}header{padding:16px;flex-wrap:wrap}h1{font-size:20px}#login{margin:25px 12px;max-width:none}.fields{grid-template-columns:1fr}#stock-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}}