:root{--bg: #0b1020;--card: #111833;--muted: #9aa4bf;--text: #e8ecf7;--accent: #4f8cff;--ok: #2ecc71;--warn: #f39c12;--danger: #e74c3c;--border: #1b2347}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Helvetica Neue,Noto Sans SC,Arial,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.5}.container{max-width:980px;margin:32px auto;padding:0 16px}h1{font-size:28px;margin:0 0 16px}.header-row{display:flex;flex-direction:column;align-items:stretch;gap:10px;margin-bottom:12px}.title-wrap{display:flex;flex-direction:column;align-items:flex-start;gap:8px}.site-logo{display:block;width:30%;height:30%;border-radius:6px}@media screen and (max-width:640px){.site-logo{width:30vw}}.logo-row{display:flex;align-items:center}.title-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.lang-control select{background:#0e1530;color:var(--text);border:1px solid var(--border);border-radius:10px;padding:8px 12px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,1px,1px);white-space:nowrap;border:0}h2{font-size:18px;margin:0 0 12px;color:var(--muted);font-weight:600}section{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:16px}.field-group{margin-bottom:12px}.field-group label{display:block;margin-bottom:6px;color:var(--text)}.inline-fields{display:grid;grid-template-columns:1fr 1fr;gap:10px}.field{position:relative}.field input{background:#0e1530;color:var(--text);border:1px solid var(--border);border-radius:10px;padding:10px 12px;width:100%;outline:none;transition:border-color .2s cubic-bezier(.22,.61,.36,1),box-shadow .2s cubic-bezier(.22,.61,.36,1),background-color .2s cubic-bezier(.22,.61,.36,1)}.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #4f8cff33}.field.with-unit input{padding-right:54px}.suffix{position:absolute;right:8px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:12px;pointer-events:none}.actions{margin-top:8px}.actions button{background:var(--accent);color:#fff;border:none;border-radius:10px;padding:10px 14px;cursor:pointer;transition:transform .16s cubic-bezier(.22,.61,.36,1),filter .16s cubic-bezier(.22,.61,.36,1),box-shadow .16s cubic-bezier(.22,.61,.36,1)}.actions #calculateBtn{background:var(--ok)}.actions #resetBtn{background:var(--danger)}.actions button:hover{filter:brightness(1.05);transform:translateY(-1px);box-shadow:0 6px 16px #00000040}.actions button:active{transform:translateY(0);filter:brightness(.98);box-shadow:0 3px 10px #0003}.results-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.result-item{background:#0e1530;border:1px solid var(--border);border-radius:10px;padding:12px;transition:transform .2s cubic-bezier(.22,.61,.36,1),box-shadow .2s cubic-bezier(.22,.61,.36,1),background-color .2s cubic-bezier(.22,.61,.36,1),border-color .2s cubic-bezier(.22,.61,.36,1)}.result-item .label{font-size:12px;color:var(--muted);margin-bottom:6px}.result-item .value{font-size:18px;font-weight:700}.result-item .list-value{font-size:14px;white-space:pre-wrap}.result-item.span-2{grid-column:span 2}@keyframes bump{0%{transform:scale(1);box-shadow:0 0 #4f8cff00;border-color:var(--border)}40%{transform:scale(1.015);box-shadow:0 8px 24px #4f8cff26;border-color:#4f8cff99}to{transform:scale(1);box-shadow:0 0 #4f8cff00;border-color:var(--border)}}.result-item.bump{animation:bump .36s cubic-bezier(.22,.61,.36,1)}.note{color:var(--muted);font-size:12px;margin-top:12px}@media(max-width:640px){.results-grid,.inline-fields{grid-template-columns:1fr}}.footer{text-align:center;color:var(--muted);font-size:12px;margin:12px 0 24px}