:root{--teal:#286a78;--dark:#153e49;--lime:#d8e360;--bg:#f3f6f7;--muted:#607782;--border:#dbe4e7;--red:#a73832}*{box-sizing:border-box}body{margin:0;font:14px "Segoe UI",Arial,sans-serif;background:var(--bg);color:#213d48}aside{position:fixed;inset:0 auto 0 0;background:var(--dark);padding:28px 18px;display:flex;flex-direction:column;color:white}.brand{background:white;padding:16px 12px;border-radius:10px;margin:0 4px 36px}.brand img{display:block;width:180px;max-width:100%;height:auto}.brand span{display:block;font-size:9px;letter-spacing:1.5px;color:var(--teal);margin-top:9px}.sidebar-label{font-size:10px;color:#8db3be;letter-spacing:2px;margin:0 14px 12px}nav a{display:flex;align-items:center;gap:12px;padding:13px 12px;border-radius:7px;color:var(--dark);background:var(--lime);font-weight:700;text-decoration:none}.num{display:grid;place-items:center;width:23px;height:23px;border:1px solid currentColor;border-radius:5px;font-size:11px}.side-bottom{margin-top:auto;padding:20px 10px 0;font-size:11px;color:#94b5be}main{padding:30px 40px}header{display:flex;justify-content:space-between;align-items:center;gap:24px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--muted)}h1{font-size:29px;margin:7px 0 22px;letter-spacing:-.7px}.actions{display:flex;gap:8px;flex-wrap:wrap}.button,button{font:600 14px "Segoe UI",Arial,sans-serif;background:white;border:1px solid #cbd9de;border-radius:7px;padding:10px 15px;color:var(--dark);text-decoration:none;cursor:pointer;white-space:nowrap}button.primary{background:var(--teal);color:white;border-color:var(--teal)}button:disabled{opacity:.45;cursor:default}.button:hover,button:hover{border-color:var(--teal)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #a9cbd5;outline-offset:2px}.project-strip{border-block:1px solid var(--border);padding:14px 0;margin-bottom:24px;font-weight:600}.card{background:white;border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:20px;min-width:0}.card h2{font-size:17px;margin:0 0 20px}.columns,.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.field{min-width:0}label{display:block;color:var(--muted);font-size:12px;font-weight:600;margin-bottom:7px}.unit{position:relative}.unit input{width:100%;padding:11px 60px 11px 12px;border:1px solid #ccdade;border-radius:6px;font:16px "Segoe UI",Arial,sans-serif;color:#203b45;background:white}.unit span{position:absolute;right:13px;top:50%;transform:translateY(-50%);font-size:12px;color:var(--muted)}#form>.card .field{max-width:440px}.error{font-size:12px;color:var(--red);margin:6px 0}.error:empty{display:none}input[aria-invalid=true]{border-color:var(--red)}.result{background:#e8f3e8;border:1px solid #bfd8bf;border-radius:10px;padding:24px;text-align:center;margin-top:24px}.result>span{font-weight:600}.result strong{display:block;font-size:42px;color:#28623c;margin:12px 0;overflow-wrap:anywhere}.result p,.hint{font-size:12px;line-height:1.6;color:var(--muted)}.result.negative{background:#fff0e8}.result.negative strong{color:var(--red)}dl{margin:20px 0 0}dl>div{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--border);padding:10px 0;font-size:12px}dt{color:var(--muted)}dd{margin:0;font-weight:600;text-align:right}footer{font-size:11px;color:var(--muted);border-top:1px solid var(--border);padding-top:16px;margin-top:25px}#status{color:var(--teal)}@media(max-width:1150px){header{align-items:flex-start;flex-direction:column;gap:0}.actions{margin-bottom:20px}.columns{grid-template-columns:1fr}}@media(max-width:760px){aside{position:static;padding:18px}.brand{max-width:240px;margin:0 0 18px}.sidebar-label,.side-bottom{display:none}main{margin:0;padding:22px 16px}.grid{grid-template-columns:1fr}h1{font-size:26px}.actions{gap:7px}.button,button{font-size:12px;padding:10px 12px}}

.columns{align-items:start}.result{max-width:100%}.result .error{color:var(--red)}

#calculator>header{margin-bottom:20px}.result.negative{border-color:#e4bdb1}