#tb-form{display:grid;grid-template-columns:1fr 1fr;gap:15px 20px;max-width:900px;margin:0 auto}#tb-form .form-section-title{grid-column:1/-1;font-family:Oswald,sans-serif;font-size:18px;color:var(--primary);margin:10px 0 0;padding-bottom:6px;border-bottom:2px solid var(--border);text-transform:uppercase;letter-spacing:1px}#tb-form .form-section-title i{margin-right:8px}#tb-form .form-section-desc{grid-column:1/-1;font-size:12px;color:var(--text-muted);margin:-5px 0 5px}#tb-form .form-group{display:flex;flex-direction:column}#tb-form .form-group label{font-size:11px;font-weight:700;color:var(--text);margin-bottom:2px;text-transform:uppercase;letter-spacing:.5px}#tb-form .form-group input,#tb-form .form-group select{padding:8px 10px;border:1px solid var(--border);border-radius:4px;font-size:14px;font-family:Roboto,sans-serif;background:#fff}#tb-form .form-group input:focus,#tb-form .form-group select:focus{outline:none;border-color:var(--primary)}.tb-mode-row{grid-column:1/-1;display:flex;gap:6px;margin-bottom:8px;flex-wrap:wrap}.tb-mode-btn{padding:8px 18px;font-size:12px;font-weight:700;border:2px solid var(--border);background:#fff;border-radius:6px;cursor:pointer;color:var(--text);font-family:Fira Sans,sans-serif;transition:all .2s}.tb-mode-btn:hover{border-color:var(--accent);color:var(--accent)}.tb-mode-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.tb-mode-section{display:none}.tb-mode-section.active{display:block;grid-column:1/-1}.tb-family-info{grid-column:1/-1;background:var(--bg-grey);border:1px solid var(--border);border-radius:6px;padding:12px 16px;margin:6px 0;font-size:12px;line-height:1.5}.tb-family-header{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:6px}.tb-family-header strong{font-size:14px;color:var(--primary);font-family:Fira Sans,sans-serif}.tb-family-norm{background:var(--accent);color:#fff;padding:2px 8px;border-radius:3px;font-size:10px;font-weight:600;letter-spacing:.3px}.tb-family-body p{margin:0 0 6px;color:var(--text)}.tb-family-specs{margin:4px 0}.tb-family-spec-title{font-weight:700;color:var(--text);display:block;margin-bottom:2px}.tb-family-specs ul{margin:0;padding-left:16px;color:var(--text-muted)}.tb-family-specs ul li{margin-bottom:1px}.tb-family-torque{margin-top:6px;color:var(--text);font-size:11px}.tb-family-torque strong{color:var(--primary)}.tb-bushing-selectors{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:15px 20px;padding:12px;background:var(--bg-grey);border-radius:6px;margin-top:5px}.tb-examples-row{grid-column:1/-1;display:flex;gap:6px;flex-wrap:wrap;margin:5px 0}.tb-examples-row button{padding:6px 14px;font-size:11px;border:1px solid var(--accent);background:transparent;color:var(--accent);border-radius:4px;cursor:pointer;font-weight:600;transition:all .2s;font-family:Roboto,sans-serif}.tb-examples-row button:hover{background:var(--accent);color:#fff}.tb-actions{grid-column:1/-1;display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}.tb-btn{padding:10px 24px;font-size:13px;font-weight:700;border:none;border-radius:6px;cursor:pointer;font-family:Fira Sans,sans-serif;transition:all .2s;text-transform:uppercase;letter-spacing:.5px}.tb-btn-primary{background:var(--primary);color:#fff}.tb-btn-primary:hover{background:var(--primary-dark)}.tb-btn-secondary{background:var(--bg-grey-alt);color:var(--text)}.tb-btn-secondary:hover{background:var(--border)}.tb-btn-danger{background:#dc2626;color:#fff}.tb-btn-danger:hover{background:#b91c1c}.tb-btn:disabled{opacity:.5;cursor:not-allowed}.tb-lead{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:8px 15px;padding:12px;background:var(--bg-grey);border-radius:6px;margin-top:5px}.tb-lead h4{grid-column:1/-1;margin:0 0 4px;font-size:13px;color:var(--text-muted)}.tb-kpi{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin:20px auto;max-width:1000px}.tb-kpi-item{background:var(--primary);color:#fff;border-radius:8px;padding:12px 10px;text-align:center}.tb-kpi-item .kpi-val{font-size:18px;font-weight:800;font-family:Oswald,sans-serif;display:block;line-height:1.2}.tb-kpi-item .kpi-lbl{font-size:9px;opacity:.85;text-transform:uppercase;letter-spacing:.5px;display:block;margin-top:2px}.tb-kpi-item.tb-kpi-warn{background:#dc2626}.tb-kpi-item.tb-kpi-ok{background:#16a34a}.tb-results{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;max-width:1000px;margin:15px auto}.tb-result-card{background:var(--bg-grey);border-radius:8px;padding:14px;border-left:4px solid var(--accent)}.tb-result-card h4{margin:0 0 8px;font-size:11px;color:var(--text-muted);text-transform:uppercase;font-family:Fira Sans,sans-serif;letter-spacing:.5px}.tb-result-card .tb-rv{font-size:13px;color:var(--text);line-height:1.6}.tb-result-card .tb-rv span{font-weight:700;color:var(--primary)}.tb-candidates{max-width:1000px;margin:15px auto;overflow-x:auto}.tb-candidates table{width:100%;border-collapse:collapse;font-size:12px}.tb-candidates th{background:var(--primary);color:#fff;padding:8px 10px;text-align:left;font-family:Fira Sans,sans-serif;font-weight:700;font-size:10px;text-transform:uppercase}.tb-candidates td{padding:6px 10px;border-bottom:1px solid var(--border)}.tb-candidates tr:nth-child(2n) td{background:var(--bg-grey)}.tb-candidates .tb-rec{background:#ecfdf5!important;font-weight:700}.tb-candidates .tb-rec td:first-child:after{content:" \2605";color:#16a34a;font-size:14px}.tb-svg-container{max-width:500px;margin:15px auto;text-align:center}.tb-svg-container svg{max-width:100%;height:auto}.tb-derivation{max-width:1000px;margin:15px auto}.tb-derivation details{margin-bottom:8px;background:var(--bg-grey);border-radius:6px;padding:10px 14px}.tb-derivation summary{font-weight:700;font-size:13px;cursor:pointer;color:var(--primary)}.tb-derivation summary i{margin-right:6px;font-size:12px}.tb-derivation .der-formula{font-family:Consolas,monospace;font-size:12px;background:#fff;padding:8px 10px;border-radius:4px;border-left:3px solid var(--accent);margin:6px 0;overflow-x:auto;white-space:nowrap}.tb-derivation .der-step{margin:4px 0;font-size:12px;line-height:1.5}.tb-alerts{max-width:1000px;margin:15px auto}.tb-alert-card{padding:10px 14px;border-radius:6px;font-size:12px;margin-bottom:6px;display:flex;align-items:center;gap:8px}.tb-alert-card i{font-size:16px;flex-shrink:0}.tb-alert-card.tb-alert-ok{background:#ecfdf5;color:#065f46;border-left:4px solid #16a34a}.tb-alert-card.tb-alert-warn{background:#fef3c7;color:#92400e;border-left:4px solid #f59e0b}.tb-alert-card.tb-alert-danger{background:#fef2f2;color:#991b1b;border-left:4px solid #dc2626}.tb-history{max-width:1000px;margin:15px auto;display:none}.tb-history table{width:100%;border-collapse:collapse;font-size:11px}.tb-history th{background:var(--primary);color:#fff;padding:6px 8px;text-align:left;font-family:Fira Sans,sans-serif;font-size:10px;text-transform:uppercase}.tb-history td{padding:5px 8px;border-bottom:1px solid var(--border)}.tb-history tr:hover td{background:var(--bg-grey)}.tb-history .tb-restore-btn{padding:2px 8px;font-size:10px;border:1px solid var(--accent);background:transparent;color:var(--accent);border-radius:3px;cursor:pointer}@media(max-width:860px){#tb-form,.tb-bushing-selectors{grid-template-columns:1fr}.tb-kpi{grid-template-columns:repeat(3,1fr)}.tb-results{grid-template-columns:1fr 1fr}.tb-lead{grid-template-columns:1fr}}@media(max-width:540px){.tb-kpi{grid-template-columns:repeat(2,1fr)}.tb-results{grid-template-columns:1fr}.tb-mode-btn{font-size:10px;padding:6px 12px}}@media print{@page{margin:8mm 10mm;size:A4 portrait}.tb-svg-container svg{max-width:300px}}