:root{--navy:#132d44;--blue:#1767a6;--teal:#147e77;--line:#d9e2e8;--muted:#5d7181;--pale:#f3f6f9;--warn:#835816;--danger:#a02f38}*{box-sizing:border-box}body{margin:0;background:var(--pale);color:#203545;font:15px/1.5 -apple-system,BlinkMacSystemFont,'Segoe UI','Malgun Gothic',sans-serif}header{background:var(--navy);color:white;padding:19px 30px;display:flex;align-items:center;justify-content:space-between}header strong{font-size:24px;letter-spacing:1px}header small{display:block;color:#c3d1db}main{max-width:1800px;margin:24px auto;padding:0 22px}button,input,select{font:inherit}button{border:1px solid var(--blue);border-radius:6px;padding:9px 16px;cursor:pointer;background:var(--blue);color:white}button:disabled{opacity:.5;cursor:wait}button.quiet{background:white;color:var(--navy);border-color:var(--line)}button:hover:not(:disabled){filter:brightness(.96)}input,select{border:1px solid #bdccd6;border-radius:5px;padding:10px;background:white;color:inherit;min-width:0}input:focus,select:focus{outline:2px solid #8dc3e1;outline-offset:1px}input[type=checkbox]{width:auto;accent-color:var(--teal)}.panel{background:white;border:1px solid var(--line);border-radius:10px;padding:22px;margin-bottom:20px}.tabs{display:flex;gap:8px;margin-bottom:20px;border-bottom:1px solid var(--line);padding-bottom:14px}.tab{background:white;border-color:transparent;color:var(--muted);font-weight:600}.tab.active{background:var(--navy);border-color:var(--navy);color:white}.searchrow{display:flex;gap:10px;margin:12px 0;max-width:860px}.searchrow input{flex:1}.searchrow button{flex-shrink:0}.hidden{display:none!important}.muted{color:var(--muted);font-size:13px}.notice{padding:15px 18px;background:#f0f7fb;border-left:4px solid var(--blue);margin-top:15px}.notice.warning{border-color:#b78330;background:#fff7e8}.danger{color:var(--danger);padding:12px}.success{color:#117568}.badge{display:inline-block;border-radius:4px;background:#eaf4f2;color:#146c64;padding:4px 10px;font-weight:600}.notify-form{max-width:620px;margin-top:12px}.notify-form label{display:block;margin:8px 0}.filterrow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin:16px 0}.filterrow label{display:block;font-size:13px;color:var(--muted)}.filterrow select{width:100%;margin-top:4px}h2{font-size:20px;margin:0 0 6px}h3{font-size:17px}table{border-collapse:collapse;width:100%}th,td{border-bottom:1px solid var(--line);padding:10px;text-align:left;vertical-align:top}th{background:#f2f6f8;font-size:13px;color:var(--muted);position:sticky;top:0;z-index:1}.table-scroll{overflow:auto;max-height:68vh}td small{display:block;color:var(--muted)}td .oe{font-family:Consolas,monospace;word-break:break-word}.row-button{background:none;border:0;padding:0;color:var(--blue);text-align:left}.catalog-header{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.catalog-header p{margin:6px 0}.chips{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.chip{background:white;color:var(--navy);border-color:var(--line)}.chip.active{background:var(--teal);border-color:var(--teal);color:white}#group{margin:0 12px;min-width:320px;max-width:80%}.diagram-nav{display:flex;gap:10px;align-items:center;margin:14px 0}#diagramSelect{flex:1;max-width:1100px}.split{display:grid;grid-template-columns:minmax(0,62fr) minmax(330px,38fr);gap:18px;border-top:1px solid var(--line);padding-top:16px}.diagram-pane,.parts-pane{min-width:0}.diagram-pane{border:1px solid var(--line);border-radius:7px;background:#fafbfc;padding:10px}.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:10px}.toolbar button{padding:4px 10px}.toolbar label{font-size:12px;color:var(--muted);margin-left:auto}#diagramViewport{height:65vh;overflow:auto;background:white;position:relative;border:1px solid var(--line)}#diagramStage{position:relative;width:100%;min-width:0}#diagramImg{width:100%;height:auto;display:block}.part-heading{display:flex;flex-direction:column;gap:9px}.part-heading input{width:100%}.parts-pane table{font-size:13px}.parts-pane td{padding:9px 7px}.parts-pane tr.selected{background:#fff0cc}.parts-pane tr.selected td:first-child{border-left:3px solid #cb7d1c}.parts-pane .qty{white-space:nowrap}.empty{padding:22px;color:var(--muted);text-align:center}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}footer{font-size:12px;color:var(--muted);text-align:center;padding:20px}details summary{cursor:pointer;color:var(--muted)}a{color:var(--blue)}@media(max-width:980px){.split{grid-template-columns:1fr}.filterrow{grid-template-columns:repeat(2,minmax(0,1fr))}#diagramViewport{height:55vh}.table-scroll{max-height:55vh}header{padding:14px 18px}main{padding:0 12px}.panel{padding:15px}.tabs{gap:3px}.tab{padding:9px 11px}.diagram-nav{flex-wrap:wrap}}@media(max-width:480px){.tabs{display:grid;grid-template-columns:1fr 1fr}.searchrow{gap:6px}#group{min-width:0;max-width:75%}header strong{font-size:20px}.toolbar label{margin-left:0}}
.account-bar{display:flex;align-items:center;gap:10px}.account-bar span{font-size:13px;color:#d6e2ea}.auth-panel{max-width:980px;margin:60px auto 20px;display:grid;grid-template-columns:1fr 1fr;gap:22px}.auth-card{border:1px solid var(--line);border-radius:9px;padding:22px;background:#fbfcfd}.auth-card form{display:grid;gap:12px}.auth-card label{display:grid;gap:5px}.auth-card input:not([type=checkbox]){width:100%}.auth-card .consent{grid-template-columns:auto 1fr;align-items:start}.auth-card .consent input{margin-top:5px}.auth-card p[aria-live]{min-height:22px;color:var(--danger)}
@media(max-width:760px){.auth-panel{grid-template-columns:1fr;margin-top:20px}.account-bar{flex-wrap:wrap;justify-content:flex-end}header{align-items:flex-start}}
/* v1.5 cart / reference-price / reference-diagram */
#cartToggle b{display:inline-block;min-width:22px;padding:1px 6px;border-radius:999px;background:#fff;color:var(--navy);margin-left:4px}
.cart-actions{display:flex;justify-content:flex-end;margin-top:12px}.cart-qty{display:inline-flex;align-items:center;gap:6px}.cart-qty button{padding:3px 8px}.cart-qty input{width:58px;text-align:center;padding:5px}.price{white-space:nowrap;font-variant-numeric:tabular-nums}.price.missing{color:var(--muted)}.cart-add{white-space:nowrap;padding:6px 9px}.cart-total{font-weight:700;text-align:right;margin:14px 0}.cart-source{color:var(--muted);font-size:12px}.parts-pane .part-row{cursor:default}.parts-pane .part-row:hover{background:transparent}

/* v1.7.0 inherits header visibility fix */
.account-bar{color:#fff;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.account-bar .language-picker{display:inline-flex;align-items:center;gap:7px;color:#fff;font-weight:700}
.account-bar .language-picker>span{color:#fff!important;font-size:13px;font-weight:700}
#languageSelect{min-width:72px;background:#fff!important;color:#132d44!important;border:2px solid #fff!important;font-weight:800;padding:7px 28px 7px 10px;box-shadow:0 0 0 1px rgba(19,45,68,.12)}
#languageSelect option{color:#132d44;background:#fff}
#accountPhone{display:inline-flex;align-items:center;min-height:38px;padding:7px 11px;border:1px solid rgba(255,255,255,.65);border-radius:6px;background:rgba(255,255,255,.12);color:#fff!important;font-weight:700;letter-spacing:.1px}
.account-bar button.quiet{min-height:38px;background:#fff!important;color:#132d44!important;border:2px solid #fff!important;font-weight:800;box-shadow:0 1px 2px rgba(0,0,0,.12)}
.account-bar button.quiet span{color:inherit!important;font-weight:inherit}
.account-bar button.quiet:hover:not(:disabled){background:#eaf2f8!important;color:#0c2438!important;filter:none}
#cartToggle{background:#1767a6!important;color:#fff!important;border-color:#fff!important}
#cartToggle span{color:#fff!important}
#cartToggle b{background:#fff!important;color:#132d44!important;border:1px solid rgba(255,255,255,.8);font-weight:900}
#logoutBtn{background:#fff!important;color:#8b1f2d!important;border-color:#fff!important}
#staffToggle{background:#fff!important;color:#132d44!important;border-color:#fff!important}
@media(max-width:760px){.account-bar{width:100%;justify-content:flex-start;margin-top:10px}.account-bar .language-picker,#accountPhone,.account-bar button.quiet{min-height:36px}.account-bar button.quiet{padding:7px 11px}}
/* v1.7.1 staff-login split */
.auth-panel{max-width:980px}
.auth-tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:18px}
.auth-tab{background:#fff;color:var(--muted);border-color:var(--line);font-weight:800}
.auth-tab.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.auth-pane{width:100%}
.staff-auth-card{max-width:520px;margin:0 auto}
.review-auth-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
@media(max-width:760px){.review-auth-grid{grid-template-columns:1fr}.auth-tabs{flex-wrap:wrap}.auth-tab{flex:1 1 180px}}