:root{color-scheme:dark;--bg:#081321;--panel:#102238;--line:#29425a;--text:#edf5fc;--muted:#9fb2c7;--accent:#42d6df}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 80% 0%,#12324a,transparent 45%),var(--bg);color:var(--text);font:15px/1.6 Inter,system-ui,sans-serif}.wrap{width:min(1080px,calc(100% - 36px));margin:auto}.top,footer{padding:20px 0;border-bottom:1px solid var(--line)}.brand,.eyebrow{color:var(--accent);font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.hero{padding:54px 0 28px}h1{font-size:clamp(34px,6vw,56px);line-height:1.08;margin:12px 0}h2{font-size:20px;margin:0 0 4px}p,.notes{color:var(--muted)}.panel{background:linear-gradient(145deg,#12283e,#0d1b2b);border:1px solid var(--line);border-radius:16px;padding:22px;margin:18px 0}.section-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:20px}.section-head>span{color:var(--accent);font-weight:800;font-size:20px}.section-head p{margin:4px 0}.field{display:grid;gap:7px;margin:12px 0}label{font-size:13px;color:var(--muted)}input,select{width:100%;min-width:0;padding:11px;border:1px solid #36506b;border-radius:8px;background:#091727;color:var(--text);font:inherit}.table-head,.hkl-row{display:grid;grid-template-columns:.7fr .7fr .7fr 2fr 36px;gap:8px;align-items:center}.table-head{color:var(--muted);font-size:12px;padding:6px 0}.hkl-row{margin:7px 0}.hkl-row input{text-align:center}.hkl-row .remove{padding:7px;background:#263b50;color:#fff}.two-fields{display:grid;grid-template-columns:2fr 1fr;gap:14px}button{border:0;border-radius:8px;background:var(--accent);color:#05212a;font-weight:800;padding:11px 17px;margin:10px 8px 8px 0;cursor:pointer;font:inherit}.secondary{background:#203b52;color:var(--text);border:1px solid #416078}.output{margin-top:14px;padding:17px;background:#071522;border:1px solid #285267;border-radius:11px;min-height:64px;overflow:auto}.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.metrics div{padding:10px;background:#10263a;border-radius:8px}.metrics small,.metrics b{display:block}.metrics small{color:var(--muted)}.metrics b{font-size:17px;color:#87f0e8}.big-result{font-size:30px;font-weight:800;color:#87f0e8}.big-result small{font-size:14px}.hint{font-size:12px}table{width:100%;border-collapse:collapse;margin-top:14px;font-size:13px}th,td{text-align:right;padding:8px;border-bottom:1px solid var(--line)}th:first-child,td:first-child{text-align:left}.warn{color:#ffbf69}.notes{padding:14px 4px 35px}.notes h2{color:var(--text)}.notes li{margin:8px 0}footer{border:0;border-top:1px solid var(--line);font-size:12px}@media(max-width:650px){.wrap{width:calc(100% - 24px)}.panel{padding:15px}.two-fields{grid-template-columns:1fr}.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.table-head,.hkl-row{grid-template-columns:.65fr .65fr .65fr 1.7fr 30px;gap:5px}.hkl-row input{padding:9px 3px;font-size:13px}}
.import-row{display:grid;gap:7px;padding:13px;margin:12px 0;background:#0a1929;border:1px dashed #416078;border-radius:10px}.import-row input{max-width:100%}.import-status{font-size:12px;color:var(--muted)}.z-help{font-size:13px;padding:10px 12px;border-left:3px solid var(--accent);background:#0a1929;border-radius:0 8px 8px 0}.z-help strong{color:var(--text)}@media(max-width:650px){.import-row{padding:10px}}

.shape-guide{margin:12px 0 18px;padding:10px;background:#0a1929;border:1px solid var(--line);border-radius:12px}.shape-guide img{display:block;width:100%;height:auto;border-radius:8px}.shape-guide p{font-size:12px;margin:7px 4px 0}.dimension-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.dimension-grid .field{margin:6px 0}.dimension-grid input{min-width:0}@media(max-width:650px){.dimension-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.shape-guide{padding:6px}}