/* ===== Shared header with dropdowns ===== */
header .nav{position:relative}
.nav-links{gap:22px}
.nav-menu{display:flex;align-items:center;gap:22px}
.dd{position:relative}
.dd-btn{background:none;border:0;color:#d7e2ee;font:inherit;font-weight:600;font-size:15px;cursor:pointer;display:flex;align-items:center;gap:5px;padding:8px 0}
.dd-btn:hover,.dd.open .dd-btn,.dd:focus-within .dd-btn{color:#fff}
.dd-btn.active{color:#fff;box-shadow:inset 0 -2px 0 var(--accent,#ff7a1a)}
.dd-btn svg{width:11px;height:11px;stroke:currentColor;fill:none;stroke-width:2.4;transition:transform .15s}
.dd-panel{display:none;position:absolute;top:100%;left:-18px;min-width:250px;background:#fff;border-radius:12px;box-shadow:0 18px 44px rgba(14,36,56,.22);padding:14px;z-index:80}
.dd-panel::before{content:"";position:absolute;top:-10px;left:0;right:0;height:10px}
@media(min-width:981px){.dd:hover .dd-panel,.dd:focus-within .dd-panel,.dd.open .dd-panel{display:block}.dd:hover .dd-btn svg,.dd.open .dd-btn svg{transform:rotate(180deg)}}
.dd-panel a{display:block;color:#1c2b3a!important;font-weight:500!important;font-size:14.5px!important;padding:6px 10px;border-radius:7px;white-space:nowrap}
.dd-panel a:hover{background:#f2f5f9;color:#0e2438!important}
.dd-panel a.dd-desc{white-space:normal}
.dd-panel a.dd-desc small{display:block;color:#6a7b8c;font-size:12.5px;font-weight:400;line-height:1.35}
.dd-mega{left:-120px;width:min(900px,92vw);padding:20px 22px}
.dd-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:6px 18px}
.dd-cols h6,.dd-panel h6{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:#ff7a1a;margin:4px 10px 6px;font-weight:800}
.dd-foot{border-top:1px solid #e8edf2;margin-top:12px;padding-top:10px;display:flex;gap:18px;flex-wrap:wrap}
.dd-foot a{display:inline-block;font-weight:700!important;color:#e8650a!important;padding:4px 10px}
.nav-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.25);border-radius:9px;width:44px;height:40px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{display:block;width:20px;height:2px;background:#fff;position:relative;content:"";transition:.2s}
.nav-toggle span::before{position:absolute;top:-6px}.nav-toggle span::after{position:absolute;top:6px}
header.menu-open .nav-toggle span{background:transparent}
header.menu-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
header.menu-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}
@media(max-width:980px){
  .nav-toggle{display:flex}
  .nav-links{gap:12px}
  .nav-menu{display:none;position:absolute;top:72px;left:0;right:0;background:#0e2438;max-height:calc(100vh - 72px);overflow-y:auto;padding:8px 24px 28px;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid rgba(255,255,255,.08);box-shadow:0 20px 40px rgba(0,0,0,.35)}
  header.menu-open .nav-menu{display:flex}
  .nav-links .nav-menu a{display:block}
  .dd{border-bottom:1px solid rgba(255,255,255,.08)}
  .dd-btn{width:100%;justify-content:space-between;font-size:17px;padding:16px 0}
  .dd-btn.active{box-shadow:none;color:#ff9a4d}
  .dd-panel,.dd-mega{position:static;display:none;box-shadow:none;background:transparent;padding:0 0 14px;width:auto;min-width:0}
  .dd.open .dd-panel{display:block}
  .dd.open .dd-btn svg{transform:rotate(180deg)}
  .dd-cols{grid-template-columns:1fr 1fr;gap:4px 12px}
  .dd-panel a{color:#d7e2ee!important;padding:7px 0;white-space:normal}
  .dd-panel a:hover{background:none;color:#fff!important}
  .dd-panel a.dd-desc small{color:#8fa3b8}
  .dd-cols h6,.dd-panel h6{margin:10px 0 4px}
  .dd-foot{border-color:rgba(255,255,255,.1)}
  .dd-foot a{color:#ff9a4d!important;padding:4px 0}
  .nav-menu>.nm-link{font-size:17px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.08);color:#d7e2ee;font-weight:600}
  .nav-menu>.nav-phone{display:block!important;padding:18px 0 0;font-size:19px}
}
@media(max-width:420px){.nav .btn{padding:9px 13px;font-size:14px}.logo .rb-logo{height:38px}}

/* ===== Shared footer ===== */
footer .foot-grid{grid-template-columns:1.35fr repeat(4,1fr);gap:28px}
footer .foot-grid p{font-size:14px;line-height:1.55}
footer .foot-contact{margin-top:14px;font-size:14px}
footer .foot-contact a{color:#fff;font-weight:700}
footer li{font-size:14px}
@media(max-width:980px){footer .foot-grid{grid-template-columns:1fr 1fr 1fr}footer .foot-grid>div:first-child{grid-column:1/-1}}
@media(max-width:560px){footer .foot-grid{grid-template-columns:1fr 1fr}}

/* ===== Related links as chips ===== */
.rel{margin-top:28px;padding-top:20px;border-top:1px solid #e8edf2}
.rel h4{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:#6a7b8c;margin:0 0 10px;font-weight:800}
.rel .chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.chip{display:inline-block;border:1px solid #dbe3ec;border-radius:999px;padding:6px 13px;font-size:13.5px;font-weight:600;color:#0e2438;background:#fff;transition:.15s}
.chip:hover{border-color:#0e2438;background:#f4f7fa}
.chip.g{background:#fff4ec;border-color:#ffd9bf;color:#b4520c}
.chip.g:hover{border-color:#e8650a}

/* ===== Two-step form ===== */
.js-2step .step2{display:none}
.js-2step.s2 .step2{display:block}
.js-2step.s2 .row2.step2{display:grid}
.js-2step.s2 .step-next,.js-2step.s2 .step-hint{display:none}
.step-next{width:100%;margin-top:4px}
.step-hint{font-size:12.5px;color:#6a7b8c;text-align:center;margin-top:8px}

/* ===== Insights hub ===== */
.ins-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:34px}
.ins-bar a{border:1px solid #dbe3ec;border-radius:999px;padding:8px 15px;font-weight:700;font-size:14px;color:#0e2438;background:#fff}
.ins-bar a:hover{border-color:#0e2438}
.ins-search{flex:1;min-width:220px;margin-left:auto;max-width:340px;position:relative}
.ins-search input{width:100%;padding:11px 14px 11px 38px;border:1px solid #cfd9e4;border-radius:10px;font:inherit;font-size:15px}
.ins-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:17px;height:17px;stroke:#6a7b8c;fill:none;stroke-width:2}
.ins-empty{display:none;color:#6a7b8c;margin:-10px 0 30px}
.card .tag.t-prob{color:#c2410c;background:#fdeadd}
.card .tag.t-cmp{color:#1d5f9e;background:#e3effa}
.card .tag.t-ref{color:#0f6e55;background:#dff3ec}
.card .tag.t-guide{color:#5b3db3;background:#ece6fb}
h2[id]{scroll-margin-top:100px}

/* ===== Merge: menu, forms, material facts, insights ===== */
@media(min-width:981px){.dd.dd-mat{position:static}.dd-mega{left:auto;right:0;top:calc(100% - 8px);width:min(1080px,96vw)}.dd-mega::before{top:-22px;height:22px}}
.dd-cols{grid-template-columns:repeat(5,1fr)}
.dd-filter{display:block;margin:0 0 12px}
.dd-filter input{width:100%;padding:10px 12px;border:1px solid #cfd9e4;border-radius:9px;font:inherit;font-size:15px;min-height:44px;color:#16222e;background:#fff}
.dd-none{font-size:14px;color:#5b6b7b;margin:0 0 8px}
@media(max-width:980px){.dd-cols{grid-template-columns:1fr 1fr}.dd-none{color:#aebece}.dd-filter{margin:10px 0 6px}}
.cta-band{background:#e8650a}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin:0 0 6px}
.facts div{background:#f4f7fa;border:1px solid #e3e8ee;border-radius:12px;padding:14px 16px}
.facts dt{font-size:12.5px;font-weight:700;color:#5b6b7b;margin-bottom:2px}
.facts dd{font-size:17px;font-weight:700;color:#0e2438}
.tablewrap{overflow-x:auto}.spec.cmp{min-width:520px}.spec.cmp td{vertical-align:top}
.q-chip{display:inline-block;background:#fff4ec;border:1px solid #ffd9bf;color:#b4520c;border-radius:999px;padding:3px 12px;font-size:12.5px;font-weight:700;margin-bottom:10px}
.field input[type=file]{padding:9px 12px;border-style:dashed;background:#f4f7fa;font-size:14px;min-height:44px}
.q-check{margin-top:14px;border-top:1px solid #e3e8ee;padding-top:12px}
.q-check summary{cursor:pointer;font-size:13.5px;font-weight:700;color:#0e2438}
.q-check ul{margin:10px 0 0 18px;font-size:13.5px;color:#33424f}
.q-check li{margin-bottom:4px}
@media(max-width:900px){.lead-grid>div:last-child{order:-1}.quote-card{position:static}}
.ins-group{font-size:19px;color:#b4520c;margin:6px 0 14px;font-weight:700;letter-spacing:-.01em;padding-bottom:8px;border-bottom:1px solid #e3e8ee}
.tools{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start;margin-bottom:44px}
.calc{flex:1.3 1 420px;min-width:0;background:#f4f7fa;border:1px solid #e3e8ee;border-radius:14px;padding:26px;scroll-margin-top:100px}
.calc h2,.charts h2{font-size:24px;color:#0e2438;margin:0 0 6px;line-height:1.25}
.calc p.sub,.charts p.sub{color:#5b6b7b;font-size:15px;margin:0 0 16px}
.calc .cgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.calc label{display:block;font-size:13px;font-weight:600;margin-bottom:5px}
.calc input,.calc select{width:100%;padding:11px 12px;border:1px solid #cfd9e4;border-radius:9px;font-size:16px;font-family:inherit;background:#fff}
.calc .wrow{display:flex;gap:6px}.calc .wrow input{flex:1;min-width:0}.calc .wrow select{width:auto;padding:11px 8px}
.calc .out{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-top:16px}
.calc .out div{background:#fff;border:1px solid #e3e8ee;border-radius:12px;padding:14px 16px}
.calc .out span{display:block;font-size:12.5px;font-weight:700;color:#5b6b7b}
.calc .out b{font-size:20px;color:#0e2438}
.calc p.fine{margin:14px 0 16px;color:#5b6b7b;font-size:13px}
.charts{flex:1 1 320px;min-width:0}
.charts a{display:flex;justify-content:space-between;align-items:center;gap:12px;border:1px solid #e3e8ee;border-radius:12px;padding:14px 16px;background:#fff;min-height:44px;margin-bottom:10px}
.charts a b{font-size:15.5px;color:#0e2438}.charts a span{font-size:13.5px;font-weight:700;color:#b4520c;white-space:nowrap}
@media(max-width:640px){.ins-wrap .card{padding:14px 16px}.ins-wrap .card>span:not(.tag){display:none}.ins-wrap .grid3{gap:10px}.calc{padding:18px}}
.only-phone{display:none}
@media(max-width:640px){.only-phone{display:flex}}

.lead-grid>div{min-width:0}

/* ===== Short step two ===== */
.q-req,.q-more-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.q-req>*,.q-more-grid>*{min-width:0;margin-bottom:12px}
.js-2step.s2 .q-req.step2{display:grid}
.q-more{margin:2px 0 14px}
.q-more summary{cursor:pointer;font-size:13.5px;font-weight:700;color:#0e2438;padding:6px 0;min-height:32px}
.q-more[open] summary{margin-bottom:8px}
@media(max-width:420px){.q-req,.q-more-grid{grid-template-columns:1fr}}

.q-more-grid>.q-wide{grid-column:1/-1}

/* ===== Polish pass ===== */
.hide-phone{display:inline}
.phero-split{display:flex;gap:44px;align-items:center;flex-wrap:wrap}
.phero-split>div{flex:1.4 1 480px;min-width:0}
.facts-hero{flex:.9 1 300px;grid-template-columns:1fr;margin:0}
.facts-hero div{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16)}
.facts-hero dt{color:#9fb0c2}
.facts-hero dd{color:#fff}
@media(max-width:640px){
  .hide-phone{display:none}
  .ind-desc{display:none!important}
  .mat-col{display:grid!important;grid-template-columns:1fr 1fr}
  .mat-col h5{grid-column:1/-1;justify-self:start}
  .mat-col a{padding:11px 12px!important}
  .mat-sub{display:none!important}
  .facts-hero{grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
}

/* materials list, article related links */
.mat-list{grid-template-columns:repeat(4,1fr);gap:0 28px}
.mat-list .card{border:0;border-top:1px solid #e3e8ee;border-radius:0;background:none;box-shadow:none;padding:13px 0}
.mat-list .card:hover{transform:none;box-shadow:none}
.mat-list .card:hover b{color:#b4520c}
.mat-list .card b{font-size:15.5px;margin-bottom:1px}
.mat-list .card span{font-size:13px}
@media(max-width:980px){.mat-list{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.mat-list{grid-template-columns:1fr}}
.article .rel a.chip{color:#0e2438;text-decoration:none;font-weight:600}
.article .rel a.chip.g{color:#b4520c}

.form-fail{margin:10px 0 0;padding:10px 12px;border:1px solid #f0b8a0;background:#fff4ec;border-radius:8px;font-size:14px;color:#7a2e0e}
.form-fail a{color:#7a2e0e;font-weight:700;text-decoration:underline}
.spec td{overflow-wrap:anywhere}

.prose ol{padding-left:22px;margin:0 0 16px}.prose ol li{margin-bottom:6px}

.topbar .tb-left{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;margin-right:16px}.topbar .tb-right{flex:none}
@media(max-width:1120px){.topbar .tb-a{display:none}}
@media(max-width:880px){.topbar .tb-b{display:none}}

/* troubleshooting guides */
.itable-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:20px 0 10px;border:1px solid #e2e8f0;border-radius:10px}
.itable{border-collapse:collapse;width:100%;min-width:0;font-size:15px;background:#fff}
.itable th{background:#0e2438;color:#fff;text-align:left;padding:10px 12px;font-weight:600;font-size:14px}
.itable td{padding:10px 12px;border-top:1px solid #e8edf2;vertical-align:top;line-height:1.45}
.itable tr:nth-child(even) td{background:#f7f9fb}
.article .note{font-size:14px;color:#5b6b7b}
.itable.dx td:first-child{font-weight:600;color:#16222e}
@media(max-width:640px){.itable.dx{min-width:560px}}
.article ol.steps{list-style:none;counter-reset:st;margin:14px 0 6px;padding:0}
.article ol.steps li{counter-increment:st;position:relative;padding:12px 0 12px 44px;border-top:1px solid #e8edf2}
.article ol.steps li:first-child{border-top:0}
.article ol.steps li::before{content:counter(st);position:absolute;left:0;top:11px;width:28px;height:28px;border:1.5px solid #0e2438;border-radius:50%;font-size:14px;font-weight:700;color:#0e2438;display:flex;align-items:center;justify-content:center}
.article [id]{scroll-margin-top:96px}
.guide-bar{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;justify-content:space-between;margin:0 0 22px;padding:0 0 14px;border-bottom:1px solid #e8edf2;font-size:14px}
.guide-bar nav{display:flex;flex-wrap:wrap;gap:6px 14px}
.guide-bar nav a{color:#b4520c;font-weight:600}
.guide-bar button{font:inherit;font-size:14px;font-weight:600;color:#0e2438;background:#fff;border:1px solid #dbe3ec;border-radius:8px;padding:7px 12px;cursor:pointer}
.guide-bar button:hover{border-color:#0e2438}
.ask{margin:34px 0 0;padding:22px;border:1px solid #e3e8ee;border-radius:12px;background:#f7f9fb}
.ask h2{margin:0 0 6px;font-size:21px}
.ask p{font-size:15px;color:#5b6b7b;margin:0 0 14px}
.ask .ask-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.ask .field{margin:0}.ask .wide{grid-column:1/-1}
.ask label{display:block;font-size:13px;font-weight:600;margin-bottom:5px;color:#16222e}
.ask input[type=text],.ask input[type=email],.ask textarea{width:100%;box-sizing:border-box;padding:10px 12px;border:1px solid #dbe3ec;border-radius:9px;font:inherit;font-size:16px;background:#fff}
.ask input[type=file]{font-size:14px;max-width:100%}
.ask .btn{margin-top:14px;border:0;cursor:pointer}
.ask .form-note{font-size:13px;color:#5b6b7b;margin:10px 0 0}
@media(max-width:560px){.ask .ask-grid{grid-template-columns:1fr}}
.matrix td,.matrix th{text-align:center}.matrix td:first-child,.matrix th:first-child{text-align:left;font-weight:600;white-space:nowrap}
.matrix .y{font-weight:800;color:#b4520c}
@media print{
  .topbar,header,footer,.mcall,.cta-band,.ask,.guide-bar,.rel,.crumb,.nav-toggle{display:none!important}
  .phero{background:none!important;color:#000!important;padding:0 0 8px!important}.phero h1{color:#000!important;font-size:22pt}
  body{background:#fff!important;color:#000}.block{padding:0!important}.article{max-width:none}
  .article p,.article li{font-size:10.5pt;color:#000}.article h2{margin-top:14pt;font-size:13pt;break-after:avoid}
  .itable-wrap{overflow:visible;border:0}.itable{font-size:9.5pt;min-width:0!important}.itable th{background:#ddd!important;color:#000!important}.itable tr,.article li{break-inside:avoid}
  a{color:#000!important;text-decoration:none}
  .article #why,.article #why~*{display:none!important}
  .article p,.article li{font-size:9.5pt;line-height:1.35}.itable td,.itable th{padding:5px 7px}.article ol.steps li{padding:6px 0 6px 34px}.article ol.steps li::before{top:5px;width:20px;height:20px;font-size:9pt}.article h2{margin:10pt 0 4pt}.itable-wrap{margin:6px 0}
  @page{margin:0.5in}
  .article::after{content:"ResinBridge  |  resinbridge.com  |  (678) 310-6899  |  quotes@resinbridge.com. General guidance only; confirm against the data sheet for your grade.";display:block;margin-top:14pt;padding-top:6pt;border-top:1px solid #999;font-size:8.5pt}
}

/* defect finder */
.finder{margin:6px 0 34px;scroll-margin-top:96px}
.finder-link{margin:-6px 0 18px;font-size:15px;color:#5b6b7b}.finder-link a{color:#b4520c;font-weight:600}
.matrix-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:14px 0 8px}
table.matrix{border-collapse:collapse;width:100%;min-width:780px;font-size:14.5px;background:none}
table.matrix th{background:none;color:#5b6b7b;font-weight:600;font-size:12.5px;line-height:1.3;padding:0 8px 10px;border-bottom:2px solid #0e2438;vertical-align:bottom;text-align:center}
table.matrix th:first-child{text-align:left;padding-left:0;color:#0e2438;font-size:13px}
table.matrix td{padding:11px 8px;border-bottom:1px solid #e8edf2;text-align:center;vertical-align:middle}
table.matrix td:first-child{text-align:left;padding-left:0;font-weight:600;white-space:nowrap}
table.matrix td:first-child a{color:#0e2438}
table.matrix tbody tr:hover td{background:#f7f9fb}
table.matrix tbody tr:hover td:first-child a{color:#b4520c;text-decoration:underline}
table.matrix .y{display:inline-block;width:9px;height:9px;border-radius:50%;background:#0e2438;vertical-align:middle}

.nav-links .nm-link,.nav-links .nav-phone,.nav .btn{white-space:nowrap}

@media(min-width:981px) and (max-width:1180px){.nav-links .nav-phone{display:none}.nav-links,.nav-menu{gap:18px}.nav-links .nm-link,.dd-btn{font-size:15px}.nav .btn{padding:11px 16px;font-size:15px}}

.article .aka{font-size:14.5px;color:#5b6b7b;margin:-4px 0 6px}.article .aka strong{color:#2c3a47;font-weight:600}
@media print{.article .aka{display:none}}

.ins-try{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:-6px 0 26px;font-size:14px;color:#5b6b7b}
.ins-try .try{font:inherit;font-size:13.5px;font-weight:600;color:#0e2438;background:#fff;border:1px solid #dbe3ec;border-radius:999px;padding:6px 12px;cursor:pointer}
.ins-try .try:hover{border-color:#0e2438;background:#f4f7fa}
.article .asks{font-size:14.5px;color:#5b6b7b;margin:0 0 6px}.article .asks strong{color:#2c3a47;font-weight:600}
@media print{.article .asks{display:none}}

/* search in the guides banner */
.phero .ins-search{display:block;flex:none;max-width:720px;margin:24px 0 0;position:relative}
.phero .ins-search input{width:100%;box-sizing:border-box;padding:16px 18px 16px 50px;border:0;border-radius:12px;font:inherit;font-size:17px;background:#fff;color:#16222e;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.phero .ins-search input:focus{outline:3px solid #ff9a4d;outline-offset:2px}
.phero .ins-search svg{left:18px;width:20px;height:20px}
.phero .ins-try{margin:14px 0 0;color:#b9c7d6;max-width:900px}
.phero .ins-try .try{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.28);color:#fff}
.phero .ins-try .try:hover{background:rgba(255,255,255,.16);border-color:#fff}
.ins-bar{margin-bottom:26px}
@media(max-width:640px){.phero .ins-search input{font-size:16px;padding:14px 14px 14px 44px}.phero .ins-search svg{left:14px}}

.phero .ins-count{margin:10px 0 0;font-size:14.5px;color:#dfe8f1}.phero .ins-count a{color:#ff9a4d;font-weight:700;text-decoration:underline}

/* search results mode */
.ins-wrap.searching>*:not(#ins-hits):not(.ins-empty){display:none!important}
#ins-hits .hits-head{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;justify-content:space-between;margin:0 0 18px}
#ins-hits h2{font-size:22px;color:#0e2438;margin:0}
#ins-hits .hits-clear{font:inherit;font-size:14px;font-weight:600;color:#0e2438;background:#fff;border:1px solid #dbe3ec;border-radius:8px;padding:7px 12px;cursor:pointer}
#ins-hits .hits-clear:hover{border-color:#0e2438}
#ins-hits .grid3{margin-bottom:10px}
.ins-wrap.searching .ins-empty{font-size:17px;margin:10px 0 0}

#ins-hits .hits-more{font-size:15px;color:#5b6b7b;margin:14px 0 0}#ins-hits .hits-more a{color:#b4520c;font-weight:600}

#ins-hits .hits-mats{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 18px;font-size:14px;color:#5b6b7b}
#ins-hits .hits-mats a{display:inline-block;padding:6px 12px;border:1px solid #dbe3ec;border-radius:999px;background:#fff;color:#0e2438;font-weight:600;text-decoration:none}
#ins-hits .hits-mats a:hover{border-color:#0e2438}
#ins-hits .hits-none{font-size:17px;color:#33424f;margin:0 0 26px;max-width:720px}#ins-hits .hits-none a{color:#b4520c;font-weight:600}
#ins-hits .hits-sub{font-size:15px;letter-spacing:.04em;text-transform:uppercase;color:#b4520c;margin:0 0 12px}

.skip{position:absolute;left:-9999px;top:0;z-index:1000;background:#fff;color:#0e2438;font-weight:700;padding:10px 16px;border-radius:0 0 8px 0}.skip:focus{left:0}
main{display:block}

.article .qa h3{font-size:17px;color:#0e2438;margin:20px 0 6px;line-height:1.35}.article .qa p{margin:0 0 4px}.article .qa{margin-bottom:8px}

/* guide layout: grey page, white card, tinted key sections */
.gv2 main>section.block{background:#f1f4f8}
.gv2 .article{max-width:852px;background:#fff;border:1px solid #dfe6ee;border-radius:14px;padding:34px 46px 40px;box-shadow:0 1px 2px rgba(14,36,56,.04)}
.gv2 .article h2{margin-top:40px}
.gv2 .article .gbox{background:#f1f6fb;border:1px solid #d6e2ee;border-radius:12px;padding:22px 24px 18px;margin:26px 0 8px}
.gv2 .article .gbox h2{margin-top:0}
.gv2 .article .gbox .itable-wrap{background:#fff}
.gv2 .article .gbox .qa h3:first-child{margin-top:14px}
@media(max-width:700px){.gv2 .article{padding:22px 16px 26px;border-radius:10px;border-left:0;border-right:0;margin:0 -16px}.gv2 .article .gbox{padding:16px 14px 12px;margin-left:-4px;margin-right:-4px}}
@media print{.gv2 main>section.block{background:#fff!important}.gv2 .article{border:0;box-shadow:none;padding:0;max-width:none}.gv2 .article .gbox{background:#fff;border:0;padding:0;margin:0}}

/* photo form as a warm highlighted card */
.gv2 .article .ask{background:#fff5ea;border:1px solid #f4c9a0;border-top:5px solid #ff7a1a;border-radius:14px;padding:28px 30px 26px;margin-top:40px;box-shadow:0 8px 22px rgba(180,82,12,.10)}
.gv2 .article .ask h2{color:#0e2438;margin:0 0 8px;font-size:26px}
.gv2 .article .ask p{color:#33424f;font-size:16px}
.gv2 .article .ask input[type=text],.gv2 .article .ask input[type=email],.gv2 .article .ask textarea{border-color:#e6c3a2}
.gv2 .article .ask input[type=file]{background:#fff;border-color:#e6c3a2}
.gv2 .article .ask .btn{padding:15px 30px;font-size:17px}
.gv2 .article .ask .form-note{color:#5b6b7b;text-align:left}
@media(max-width:700px){.gv2 .article .ask{padding:22px 16px}}

/* steps as "Step 1" labels */
.gv2 .article ol.steps li{padding:15px 0}
.gv2 .article ol.steps li::before{content:"Step " counter(st);position:static;display:table;width:auto;height:auto;font-size:12.5px;font-weight:700;color:#b4520c;background:#fff1e4;border:1px solid #f6c9a2;border-radius:6px;padding:1px 9px;margin-bottom:6px;line-height:1.6}
@media print{.gv2 .article ol.steps li{padding:5px 0}.gv2 .article ol.steps li::before{font-size:8pt;color:#000}}

/* article links read as links */
.article p a,.article li a,.article td a{color:#b4520c;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article p a:hover,.article li a:hover,.article td a:hover{color:#8f3f08}
/* guide top: print button beside the jump links, title lined up with the card text */
@media(min-width:701px){.gv2 .guide-bar{flex-wrap:nowrap;align-items:flex-start}.gv2 .guide-bar nav{flex:1;padding-top:7px}.gv2 .guide-bar button{flex:none;white-space:nowrap}
.gv2 .phero>.wrap{max-width:758px!important;padding-left:47px;padding-right:47px;box-sizing:content-box}}
@media(min-width:701px) and (max-width:900px){.gv2 .phero>.wrap{padding-left:71px;padding-right:71px}}
.gv2 .article .aka{margin:10px 0 6px}
@media print{.article p a,.article li a,.article td a{color:#000;text-decoration:none}}

/* comparison pages: two "choose" boxes side by side, slimmer closing strip */
.article .choose-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:30px 0 10px}
.article .choose-grid.three{grid-template-columns:1fr 1fr 1fr}
.article .choose{background:#f1f6fb;border:1px solid #d6e2ee;border-radius:12px;padding:20px 22px 16px}
.article .choose h2{margin:0 0 8px;font-size:19px;line-height:1.3}
.article .choose ul{margin:0;padding-left:20px}.article .choose li{font-size:16px;margin:0 0 6px}
@media(max-width:700px){.article .choose-grid,.article .choose-grid.three{grid-template-columns:1fr}}
.cta-band.cta-slim{padding:30px 0}
.cta-band.cta-slim .wrap{display:grid;grid-template-columns:1fr auto;column-gap:32px;align-items:center;text-align:left}
.gv2 .cta-band.cta-slim .wrap{max-width:852px}
.cta-band.cta-slim h2{font-size:23px;margin:0 0 4px;grid-column:1}
.cta-band.cta-slim p{font-size:16px;margin:0;grid-column:1}
.cta-band.cta-slim .btn{grid-column:2;grid-row:1/3}
@media(max-width:700px){.cta-band.cta-slim .wrap{grid-template-columns:1fr;text-align:center;row-gap:6px}.cta-band.cta-slim .btn{grid-column:1;grid-row:auto;justify-self:center;margin-top:10px}}

/* comparison tables: white divider at the centre of the header */
.itable.cmp{table-layout:fixed;width:100%}
.itable.cmp col:nth-child(1){width:18%}.itable.cmp col:nth-child(2){width:32%}.itable.cmp col:nth-child(3){width:50%}
.itable.cmp thead th:nth-child(3){border-left:1px solid #fff}
@media(max-width:600px){.itable.cmp col:nth-child(1){width:27%}.itable.cmp col:nth-child(2),.itable.cmp col:nth-child(3){width:36.5%}.itable.cmp td,.itable.cmp th{padding-left:8px;padding-right:8px;font-size:14px;overflow-wrap:break-word}}
@media print{.itable.cmp thead th:nth-child(3){border-left:1px solid #000}}

/* wide chart pages in the card layout */
@media(min-width:701px){.gv2.gv2w .phero>.wrap{max-width:946px!important}.gv2.gv2w .cta-band.cta-slim .wrap{max-width:1040px}}
.article .choose p{font-size:16px;margin:0}
@media(max-width:900px){.article .choose-grid.three{grid-template-columns:1fr}}

/* defect finder on phones: a list with cause tags instead of the sideways grid */
.matrix-list,.mx-m{display:none}
@media(max-width:760px){
.finder .matrix-wrap,.mx-d{display:none}
.mx-m{display:inline}
.matrix-list{display:block;list-style:none;margin:12px 0 8px;padding:0;border-top:2px solid #0e2438}
.matrix-list li{padding:13px 0 12px;border-bottom:1px solid #e8edf2}
.matrix-list li>a{display:block;font-weight:700;font-size:16.5px;color:#0e2438;text-decoration:none;margin-bottom:7px}
.matrix-list .mc{display:flex;flex-wrap:wrap;gap:6px}
.matrix-list .mc span{font-size:13px;color:#33424f;background:#f1f4f8;border:1px solid #dfe6ee;border-radius:6px;padding:2px 8px;line-height:1.5}
}
@media print{.matrix-list,.mx-m{display:none!important}}

/* ---- phone layout: tables become stacked rows ---- */
@media(max-width:640px){
.itable-wrap,.dtable-wrap,.tablewrap{overflow-x:visible!important}
table.stk{display:block!important;min-width:0!important;width:100%!important}
table.stk thead{display:none!important}
table.stk tbody{display:block}
table.stk tr{display:block;padding:13px 14px;border-top:1px solid #e2e8f0;background:#fff}
table.stk tbody tr:first-child{border-top:0}
table.stk tbody tr:nth-child(even){background:#f7f9fb}
table.stk td,table.stk th{display:block;border:0!important;padding:0!important;background:none!important;margin:9px 0 0;font-size:15.5px;line-height:1.45;text-align:left;width:auto!important;color:#2c3a47;position:static!important}
table.stk td:empty{display:none}
table.stk tr>:first-child{margin-top:0;font-weight:700;font-size:16.5px;color:#16222e}
table.stk td[data-l]:not(:first-child)::before{content:attr(data-l);display:block;font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:#6a7b8c;margin-bottom:1px}
table.stk.spec tr:first-child:not(:has(td)){display:none}
table.stk.dtable td:not(:first-child){display:grid;grid-template-columns:38% 1fr;gap:10px;align-items:baseline;margin-top:7px}
table.stk.dtable td[data-l]:not(:first-child)::before{margin:0}
.dtable-scroll-hint{display:none!important}
/* glossary: space between terms */
.article p[id^="term-"]{margin:0;padding:12px 0;border-top:1px solid #e8edf2}
/* larger tap targets */
.guide-bar nav{gap:8px}
.guide-bar nav a{display:inline-block;padding:8px 12px;border:1px solid #f1d2b6;border-radius:999px;background:#fff8f2;text-decoration:none}
.guide-bar button{padding:10px 14px}
.q-check summary{padding:11px 0;font-size:14.5px}
.phero .crumb a{display:inline-block;padding:9px 0}
.phero .crumb{margin-bottom:6px}
/* long titles and small text */
.phero h1{font-size:25px;line-height:1.18}
.rel h4{font-size:13px}
.form-note{font-size:13px!important}
}
.article p[id^="term-"]{margin:0 0 12px}
@media print{table.stk td::before{display:none!important}}

/* numbered steps outside the guides use the same Step tags */
.prose ol.steps{list-style:none;counter-reset:st;margin:14px 0 6px;padding:0}
.prose ol.steps li{counter-increment:st;padding:14px 0;border-top:1px solid #e8edf2}
.prose ol.steps li:first-child{border-top:0;padding-top:4px}
.prose ol.steps li::before{content:"Step " counter(st);display:table;font-size:12.5px;font-weight:700;color:#b4520c;background:#fff1e4;border:1px solid #f6c9a2;border-radius:6px;padding:1px 9px;margin-bottom:6px;line-height:1.6}
.foot-bottom a{color:inherit;text-decoration:underline;text-underline-offset:2px}

/* orange buttons: navy text for contrast (6.1 to 1) */
.btn,.mcall a.quote{color:#0e2438}
header .nav a.btn,header .nav a.btn:hover{color:#0e2438}
.btn:hover{background:#ff8f3d;color:#0e2438}
.cta-band .btn,.cta-band .btn:hover{color:#fff}
.cta-band .btn:hover{background:#091a2b}
.btn-ghost,.btn-ghost:hover{color:#fff}

/* Fix a Problem page: tools row, topic tabs, compact guide list */
.ins-tools{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:0 0 34px}
.ins-tools .tool{display:block;background:#f1f6fb;border:1px solid #d6e2ee;border-radius:12px;padding:18px 20px;text-decoration:none;color:#16222e;transition:border-color .15s}
.ins-tools .tool:hover{border-color:#0e2438}
.ins-tools .tool small{display:block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#b4520c;margin-bottom:4px}
.ins-tools .tool b{display:block;font-size:17px;margin-bottom:4px;color:#0e2438}
.ins-tools .tool span{color:#5b6b7b;font-size:14.5px;line-height:1.45;display:block}
.ins-tabs{display:none;flex-wrap:wrap;gap:8px;margin:0 0 6px;padding-bottom:18px;border-bottom:1px solid #e3e9f0}
.js-tabs .ins-tabs{display:flex}
.ins-tabs button{font:inherit;font-size:14px;font-weight:700;padding:8px 14px;border-radius:999px;border:1px solid #dbe3ec;color:#0e2438;background:#fff;cursor:pointer}
.ins-tabs button:hover{border-color:#0e2438}
.ins-tabs button.on{background:#0e2438;color:#fff;border-color:#0e2438}
.ins-tabs button i{font-style:normal;font-weight:500;opacity:.7;margin-left:3px}
.js-tabs .ins-panel:not(.on){display:none}
.js-tabs .ins-panel>.ins-group{display:none}
.ins-panel{margin-bottom:8px;scroll-margin-top:150px}
.ins-wrap .ins-panel .grid3{margin-bottom:24px!important}
#finder,#selector,#calc{scroll-margin-top:96px}
@media(max-width:760px){.ins-tools{grid-template-columns:1fr;gap:10px;margin-bottom:26px}.ins-tools .tool{padding:14px 16px}.ins-tools .tool span{display:none}.ins-tools .tool b{margin:0}
}
#problems{scroll-margin-top:100px}

@media(max-width:400px){.topbar .tb-right{gap:12px;font-size:12.5px}}
@media(max-width:340px){.topbar .tb-right{gap:10px;font-size:11.5px}}
@media(max-width:360px){.logo .rb-logo{height:32px!important}.nav .btn{padding:8px 10px!important;font-size:13px!important}.nav-links{gap:8px!important}.nav-toggle{width:40px!important}}
@media(min-width:981px){.hero-l{padding-top:38px}}
@media(min-width:1181px){.topbar .tb-right a[href^="tel:"]{display:none}}

/* Unit converter page */
.uc{max-width:900px;margin:0 auto}
.uc-lead{font-size:17px;color:#2c3a47;margin:0 0 18px}
.uc-cats{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px}
.uc-cats button{font:inherit;font-size:14px;font-weight:700;padding:8px 13px;border-radius:999px;border:1px solid #dbe3ec;background:#fff;color:#0e2438;cursor:pointer}
.uc-cats button:hover{border-color:#0e2438}
.uc-cats button.on{background:#0e2438;border-color:#0e2438;color:#fff}
.uc-card{background:#fff;border:1px solid #e3e8ee;border-radius:14px;padding:22px;box-shadow:0 8px 24px rgba(14,36,56,.06);margin:0 0 34px}
.uc-in{display:grid;grid-template-columns:1.2fr 1.4fr .8fr;gap:14px;margin-bottom:14px}
.uc-f label{display:block;font-size:13px;font-weight:700;color:#16222e;margin-bottom:5px}
.uc-f input,.uc-f select{width:100%;padding:11px 12px;border:1px solid #cfd9e4;border-radius:9px;font:inherit;font-size:16px;background:#fff;color:#16222e}
.uc-f input:focus,.uc-f select:focus{outline:none;border-color:#ff7a1a;box-shadow:0 0 0 3px rgba(255,122,26,.18)}
.uc-row{display:flex;gap:8px}.uc-row input{flex:1;min-width:0}.uc-row select{width:auto;flex:none}
.uc-err{color:#b42318;font-size:14px;min-height:0;margin:0 0 6px}
.uc-out{width:100%;border-collapse:collapse;font-size:16px}
.uc-out th{text-align:left;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:#6a7b8c;padding:8px 10px;border-bottom:1px solid #e3e8ee}
.uc-out td{padding:10px;border-bottom:1px solid #eef2f6;vertical-align:middle}
.uc-out td.v{font-weight:700;color:#0e2438;font-variant-numeric:tabular-nums;text-align:right}
.uc-out th:nth-child(2){text-align:right}
.uc-out tr.me td{background:#fff6ee}
.uc-out td:last-child{width:72px;text-align:right}
.uc-cp{font:inherit;font-size:13px;font-weight:600;color:#0e2438;background:#f1f5f9;border:1px solid #dbe3ec;border-radius:7px;padding:5px 10px;cursor:pointer}
.uc-cp:hover{border-color:#0e2438}
.uc-note{font-size:14px;color:#5b6b7b;margin:14px 0 0}
.uc-share{margin:10px 0 0;font-size:14px;color:#5b6b7b}
.uc-link{font:inherit;font-size:14px;font-weight:700;color:#b4520c;background:none;border:0;padding:0;cursor:pointer;text-decoration:underline}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.uc-pw .uc-in{grid-template-columns:1.3fr 1.5fr .9fr}
.uc-pwout{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.uc-pwout div{background:#f4f7fa;border:1px solid #e3e8ee;border-radius:10px;padding:12px 14px}
.uc-pwout b{display:block;font-size:20px;color:#0e2438;font-variant-numeric:tabular-nums}
.uc-pwout span{font-size:13px;color:#5b6b7b}
.uc h2{scroll-margin-top:100px}
@media(max-width:760px){
 .uc-in,.uc-pw .uc-in{grid-template-columns:1fr 1fr}.uc-in .uc-f:first-child{grid-column:1/-1}
 .uc-pwout{grid-template-columns:1fr 1fr}
 .uc-card{padding:16px}
 .uc-cats{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:6px;margin-right:-24px;padding-right:24px}
 .uc-cats button{flex:none}
 .uc-out thead{display:none}
 .uc-out,.uc-out tbody{display:block}
 .uc-out tr{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:10px;border-bottom:1px solid #eef2f6;padding:10px 4px}
 .uc-out td{display:block;border:0;padding:0}
 .uc-out td::before{display:none!important;content:none!important}
 .uc-out td:last-child{width:auto}
}
@media(min-width:1001px){.ins-tools{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(min-width:761px) and (max-width:1000px){.ins-tools{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:900px){.how-col{max-width:none!important;flex-basis:100%!important}.how-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.how-steps li{border-top:2px solid rgba(255,255,255,.18)!important;padding-top:18px!important}}
@media(max-width:600px){#industries a[style*="border-radius: 999px"]{padding:7px 12px!important;font-size:14px!important}}

/* Unit converter v2 */
.uc2-sec{padding-top:28px}
.uc2-main{padding:24px 26px 20px}
.uc2-lbl{display:block;font-size:14px;font-weight:700;color:#16222e;margin-bottom:8px}
.uc2-row{display:grid;grid-template-columns:1fr minmax(210px,.9fr);gap:10px}
.uc2-row input,.uc2-row select,.uc2-to select{padding:14px 14px;border:1.5px solid #cfd9e4;border-radius:10px;font:inherit;font-size:20px;background:#fff;color:#16222e;min-width:0;width:100%}
.uc2-row input{font-weight:700;font-variant-numeric:tabular-nums}
.uc2-row input:focus,.uc2-row select:focus,.uc2-to select:focus{outline:none;border-color:#ff7a1a;box-shadow:0 0 0 3px rgba(255,122,26,.18)}
.uc2-hint{font-size:13.5px;color:#5b6b7b;margin:8px 0 0}
.uc2-hint button{font:inherit;font-size:13.5px;color:#b4520c;background:none;border:0;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.uc2-ans{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin:18px 0 6px;padding:18px 20px;background:#fff6ee;border:1px solid #ffd9bf;border-radius:12px}
.uc2-ans.off{display:none}
.uc2-from{font-size:20px;font-weight:600;color:#2c3a47;font-variant-numeric:tabular-nums}
.uc2-eq{font-size:22px;color:#b4520c;font-weight:700}
.uc2-to{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.uc2-to b{font-size:30px;line-height:1.1;color:#0e2438;font-variant-numeric:tabular-nums}
.uc2-to select{width:auto;font-size:18px;padding:8px 10px;font-weight:600;color:#0e2438}
.uc2-cpa{margin-left:auto}
.uc2-quick{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px}
.uc2-quick span{font-size:13px;font-weight:700;color:#6a7b8c;margin-right:2px}
.uc2-quick button{font:inherit;font-size:13.5px;font-weight:600;padding:7px 12px;border-radius:999px;border:1px solid #dbe3ec;background:#fff;color:#0e2438;cursor:pointer}
.uc2-quick button:hover{border-color:#0e2438}
.uc2-allhead{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.uc2-allhead h2{font-size:20px;margin:0;color:#0e2438}
.uc2-prec{font-size:13px;color:#5b6b7b;font-weight:600}
.uc2-prec select{font:inherit;font-size:13.5px;padding:5px 8px;border:1px solid #cfd9e4;border-radius:8px;margin-left:6px;background:#fff}
.uc2-pick{font:inherit;font-size:16px;background:none;border:0;padding:0;color:#16222e;cursor:pointer;text-align:left}
.uc2-pick:hover{color:#b4520c;text-decoration:underline}
.uc-out tr.me{background:#fff6ee}.uc-out tr.me td{background:transparent!important}
@media(max-width:760px){
 .uc2-row{grid-template-columns:1fr}
 .uc2-main{padding:18px 16px}
 .uc2-to b{font-size:26px}
 .uc2-ans{padding:14px 16px}
 .uc2-cpa{margin-left:0}
 .uc2-quick{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px}
 .uc2-quick button{flex:none}
 .uc-out tr.me{border-radius:8px}
}
@media(max-width:760px){.uc2-quick{flex-wrap:wrap!important;overflow:visible!important}.uc2-quick button{font-size:13px;padding:6px 10px}}
.uc2-hero{padding:34px 0 30px!important}.uc2-hero h1{font-size:clamp(28px,6vw,38px)!important;margin:6px 0 0!important}

/* Card style A: grey section, white cards, darker text (owner choice Oct 10) */
.cards-a{background:#f1f4f8}
.cards-a .card{background:#fff;border:1px solid #d8e0ea;box-shadow:0 2px 6px rgba(14,36,56,.06)}
.cards-a .card:hover{border-color:#0e2438;box-shadow:0 8px 20px rgba(14,36,56,.12)}
.cards-a .card b{font-size:17.5px;line-height:1.3;color:#0e2438;margin-bottom:6px}
.cards-a .card>span:not(.tag){color:#3e4c5a;font-size:15px;line-height:1.5}
.cards-a .ins-tools .tool{background:#fff}
.card>span:not(.tag){color:#4a5866}
.cards-a .mat-list .card{background:none;border:0;border-top:1px solid #d8e0ea;border-radius:0;box-shadow:none}
.cards-a .mat-list .card:hover{box-shadow:none;border-color:#d8e0ea}