.technical-center{max-width:1200px;margin:auto;padding:130px 40px 80px;font-size:1rem}
.technical-center h1{font-family:'Barlow Condensed',sans-serif;font-size:clamp(2.5rem,6vw,4.5rem);line-height:1.1;margin:12px 0 20px}
.technical-center h2{font-size:1.6rem;line-height:1.25;margin-bottom:18px}
.technical-center h3{font-size:1.15rem;margin-bottom:10px}
.technical-center p{color:var(--txt-2);max-width:75ch;margin-bottom:16px}
.technical-center a{color:var(--accent-2);text-decoration:underline;text-underline-offset:4px}
.technical-center .tc-intro{margin-bottom:32px}
.tc-workspace{display:grid;grid-template-columns:1.4fr 1fr;border:1px solid var(--line);background:var(--bg-2)}
.tc-form,.tc-result{padding:32px;min-width:0}
.tc-result{border-left:1px solid var(--line);background:var(--panel);display:flex;flex-direction:column;justify-content:center}
.tc-fields{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.tc-field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.tc-field label{font-size:1rem;font-weight:500}
.technical-center input,.technical-center select{width:100%;min-height:48px;background:#080b10;color:var(--txt);border:1px solid #687382;border-radius:2px;padding:10px 12px;font:inherit}
.technical-center input[aria-invalid=true]{border-color:#ffadad}
.technical-center :focus-visible{outline:3px solid var(--accent-2);outline-offset:4px}
.technical-center button{font:inherit;cursor:pointer;min-height:46px}
.tc-actions{display:flex;flex-wrap:wrap;gap:12px}
.tc-result output{display:block;color:var(--accent-2);font-size:clamp(2rem,4vw,3.3rem);font-weight:500;overflow-wrap:anywhere;line-height:1.2;margin:14px 0 22px;font-variant-numeric:tabular-nums}
.tc-result small{color:var(--txt-2);font-size:.875rem}
.tc-error{color:#ffadad!important;min-height:1.5em;margin-top:14px}
.tc-fraction{margin-top:24px;border-top:1px solid var(--line);padding-top:22px}
.tc-fraction select{max-width:180px}
.tc-fraction strong{display:block;margin:14px 0;font-weight:500;font-variant-numeric:tabular-nums}
.tc-context{padding:24px 0;border-bottom:1px solid var(--line)}
.tc-guides{display:grid;grid-template-columns:1fr 1fr;gap:36px;margin:40px 0}
.tc-guides article{border-top:2px solid var(--accent);padding-top:24px;min-width:0}
.tc-table{overflow-x:auto;margin:24px 0}
.technical-center table{width:100%;border-collapse:collapse;text-align:left;font-variant-numeric:tabular-nums}
.technical-center caption{text-align:left;font-size:1.3rem;margin-bottom:14px;font-weight:500}
.technical-center th,.technical-center td{border-bottom:1px solid var(--line);padding:12px 16px}
.technical-center th{color:var(--accent-2);font-weight:500}
.technical-center [hidden]{display:none!important}
.tc-menu{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 32px;scroll-margin-top:96px}
.technical-center .tc-menu a{border:1px solid var(--line);padding:14px 20px;text-decoration:none;font-weight:500;color:var(--txt)}
.technical-center .tc-menu a[aria-current]{background:var(--accent-2);color:#05080d;border-color:var(--accent-2)}
.technical-center [data-tool-panel]{scroll-margin-top:100px}
.tc-screws{padding:28px;border:1px solid var(--line);background:var(--bg-2);margin-bottom:30px}
.tc-screws h2{margin-top:12px}
.tc-standard{display:flex;flex-wrap:wrap;gap:18px;align-items:center;border-left:3px solid var(--accent-2);padding:12px 18px;background:var(--panel);margin:20px 0}
.tc-standard strong{font-size:1.25rem;color:var(--accent-2)}
.tc-screws th small{display:block;white-space:nowrap;color:var(--txt-2);font-size:.875rem;font-weight:400}
.tc-screws td{white-space:nowrap}
.tc-screws .tc-standard-note{font-size:.95rem;margin-bottom:20px}
@media(max-width:760px){.tc-screws{padding:20px 14px}.tc-menu{gap:8px}.technical-center .tc-menu a{padding:12px;font-size:.95rem}}
@media(max-width:760px){.technical-center{padding:105px 22px 55px}.tc-workspace,.tc-guides{grid-template-columns:1fr}.tc-result{border-left:0;border-top:1px solid var(--line)}.tc-form,.tc-result{padding:24px}.tc-fields{gap:12px}}
@media(max-width:380px){.tc-fields{grid-template-columns:1fr}.tc-form,.tc-result{padding:18px}}