:root{color-scheme:dark;--bg:#0c111b;--panel:#131c2a;--panel2:#182335;--text:#e9eef6;--muted:#a7b3c6;--border:#2a3547;--accent:#71ddcf;--accent-ink:#062a27;--fail:#ff8d9d;--warn:#f5ce78;--pass:#71ddae;--info:#9fbeef;--unknown:#c5b3ed;--shadow:0 14px 50px #03060b44}
:root.light{color-scheme:light;--bg:#f2f5f9;--panel:#fff;--panel2:#f5f7fb;--text:#172237;--muted:#56667b;--border:#dbe2ec;--accent:#087e70;--accent-ink:#fff;--fail:#b4203b;--warn:#875608;--pass:#15784a;--info:#335e99;--unknown:#6b48a0;--shadow:0 14px 50px #17325109}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:default}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}[hidden]{display:none!important}.shell{width:min(1180px,calc(100% - 48px));margin:auto}.topbar{color-scheme:dark;--panel:#131c2a;--border:#2a3547;--text:#e9eef6;--muted:#a7b3c6;--accent:#71ddcf;border-bottom:1px solid var(--border);background:var(--panel);color:var(--text)}.topbar-inner{min-height:102px;display:flex;align-items:center;gap:24px}.brand{display:inline-flex;flex-shrink:0;line-height:0}.brand img{display:block;width:100px;height:82px;object-fit:contain;background:#131c2a;border-radius:6px;padding:6px}.topbar-label{font-size:11px;font-weight:700;letter-spacing:.16em;color:var(--muted)}.topbar #theme-toggle{margin-left:auto}.quiet,.text-button{background:transparent;border:0;color:var(--muted);padding:6px 0;font-size:13px}.quiet:hover,.text-button:hover{color:var(--text)}button:focus-visible,input:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.intro{display:flex;justify-content:space-between;align-items:center;gap:40px;padding:56px 0 30px}.eyebrow{font-size:11px;font-weight:750;letter-spacing:.16em;color:var(--accent);margin:0 0 10px}h1{font-size:clamp(27px,3.8vw,43px);line-height:1.18;letter-spacing:-.035em;font-weight:700;margin:0 0 16px}.lede{margin:0;color:var(--muted);font-size:16px;line-height:1.7}.ip-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:20px 24px;min-width:285px;box-shadow:var(--shadow)}.small-label{color:var(--muted);font-size:10px;letter-spacing:.12em;font-weight:700;display:block}.ip-card strong{display:block;font:600 25px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;overflow-wrap:anywhere}.ip-bottom{display:flex;align-items:center;justify-content:space-between;gap:22px;color:var(--muted);font-size:12px}.search-card{border:1px solid var(--border);border-radius:14px;background:var(--panel);padding:25px;box-shadow:var(--shadow)}label{display:block;font-size:13px;font-weight:600;color:var(--muted)}.search-row{display:flex;gap:12px;margin:9px 0 10px}.domain-field{display:flex;gap:12px;align-items:center;flex:1;min-width:0;border:1px solid var(--border);border-radius:8px;background:var(--bg);padding:0 15px}.domain-field>span{color:var(--muted);font-size:26px}.domain-field input{width:100%;height:54px;border:0;background:transparent;color:var(--text);font-size:18px;min-width:0;padding:8px 0}.domain-field:focus-within{border-color:var(--accent)}.domain-field input:focus-visible{outline:0}.primary{background:var(--accent);color:var(--accent-ink);border:1px solid var(--accent);border-radius:8px;padding:0 27px;font-weight:700;white-space:nowrap}.primary span{margin-left:13px}.search-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px}.search-bottom p,.help{margin:0;color:var(--muted);font-size:12px}.selector-input{background:var(--bg);border:1px solid var(--border);border-radius:6px;color:var(--text);padding:10px;margin:8px 0;width:min(540px,100%)}#advanced{padding-top:16px;margin-top:12px;border-top:1px solid var(--border)}.recent{display:flex;gap:12px;align-items:center;border-top:1px solid var(--border);margin-top:17px;padding-top:14px;font-size:12px;color:var(--muted)}#recent-buttons{display:flex;flex-wrap:wrap;gap:8px;flex:1}.recent-domain{color:var(--muted);background:var(--panel2);border:1px solid var(--border);border-radius:4px;padding:3px 8px;font-size:12px}.loading{display:flex;gap:12px;align-items:center;color:var(--muted);border-top:1px solid var(--border);margin-top:20px;padding-top:20px}.spinner{display:block;width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error,.partial{border:1px solid var(--warn);border-radius:6px;color:var(--warn);padding:12px 16px;margin-top:20px}.error{color:var(--fail);border-color:var(--fail)}.report-header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:38px 0 20px}h2{font-size:29px;letter-spacing:-.02em;line-height:1.25;margin:0 0 8px;overflow-wrap:anywhere}.report-meta{font-size:12px;color:var(--muted);margin:0}.report-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.secondary{border:1px solid var(--border);border-radius:6px;background:var(--panel);color:var(--muted);padding:8px 11px;font-size:12px}.secondary:hover{color:var(--text);border-color:var(--muted)}.summary{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.summary-card{background:var(--panel);border:1px solid var(--border);border-radius:10px;color:var(--text);padding:14px 17px;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:10px}.summary-card.active{border-color:var(--accent)}.summary-card span{font-size:12px;font-weight:600}.summary-card strong{font-size:27px;font-weight:600;line-height:1}.status-fail{color:var(--fail)}.status-warn{color:var(--warn)}.status-pass{color:var(--pass)}.status-info{color:var(--info)}.status-unknown{color:var(--unknown)}.report-tools{display:flex;align-items:flex-end;justify-content:space-between;gap:15px;margin:26px 0 12px}#section-tabs{display:flex;flex-wrap:wrap;gap:6px}.tab{border:1px solid transparent;border-radius:5px;padding:6px 9px;background:transparent;color:var(--muted);font-size:12px}.tab.active{color:var(--text);background:var(--panel2);border-color:var(--border)}.search-results-label{font-size:10px;white-space:nowrap}.search-results-label input{display:block;width:180px;margin-top:5px;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:5px;padding:7px 9px;font-size:12px}.table-wrap{border:1px solid var(--border);border-radius:10px;overflow:hidden;background:var(--panel)}table{width:100%;border-collapse:collapse;text-align:left}thead{background:var(--panel2);color:var(--muted);font-size:11px;letter-spacing:.04em}th,td{padding:15px 18px;vertical-align:top;border-bottom:1px solid var(--border)}thead th:first-child{width:25%}thead th:nth-child(2){width:120px}tbody tr:last-child td{border-bottom:0}.section-row th{color:var(--accent);background:var(--bg);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.10em;padding:10px 18px}.test-name{font-weight:600;font-size:13px}.result-badge{display:inline-block;font-size:11px;font-weight:650;white-space:nowrap;padding:3px 8px;border:1px solid currentColor;border-radius:4px}.check-summary{margin:0;font-size:13px}.evidence{margin:8px 0 0;padding:10px 12px;border-radius:5px;background:var(--bg);color:var(--muted);white-space:pre-wrap;overflow-wrap:anywhere;font:11.5px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace}.advice{margin:9px 0 0;color:var(--muted);font-size:12px}.reference{display:inline-block;margin-top:7px;font-size:11px}.empty-result{text-align:center;color:var(--muted);padding:35px;margin:0}.method-note{color:var(--muted);font-size:12px;margin:20px 0}.method-note summary{cursor:pointer;font-weight:600}.method-note p{margin:8px 0}.empty-state{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;margin:44px 4px}.feature-mark{font:500 11px ui-monospace,monospace;color:var(--accent)}.empty-state h3{font-size:15px;line-height:1.4;margin:10px 0 6px}.empty-state p{font-size:13px;color:var(--muted);line-height:1.7;margin:0}footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--border);margin-top:45px!important;padding:20px 0 30px;font-size:11px;color:var(--muted)}
@media(max-width:900px){.intro{gap:22px}.ip-card{min-width:240px;padding:16px}.report-header{align-items:flex-start}.report-actions{max-width:220px}.summary{gap:8px}.summary-card{padding:12px}.report-tools{flex-wrap:wrap}.search-results-label input{width:250px}.report-header h2{font-size:24px}}
@media(max-width:650px){.shell{width:calc(100% - 28px)}.topbar-inner{min-height:92px;gap:14px}.brand img{width:88px;height:72px}.topbar-label{font-size:9px}.intro{display:block;padding:30px 0 24px}.lede{font-size:14px}.ip-card{margin-top:22px;padding:14px 17px}.ip-card strong{font-size:23px}.ip-card .small-label{font-size:9px}.search-card{padding:18px}.search-row{flex-direction:column}.domain-field input{height:50px}.primary{padding:12px}.search-bottom{align-items:flex-start;gap:12px}.search-bottom p{max-width:190px}.recent{align-items:flex-start}.report-header{display:block;margin-top:30px}.report-actions{max-width:none;justify-content:flex-start;margin-top:14px}.summary{grid-template-columns:repeat(3,1fr)}.summary-card{padding:11px}.summary-card strong{font-size:22px}.summary-card span{font-size:10px}.report-tools{display:block}.search-results-label{display:block;margin-top:15px}.search-results-label input{width:100%}th,td{padding:12px 9px}thead th:first-child{width:23%}thead th:nth-child(2){width:85px}.test-name,.check-summary{font-size:12px}.result-badge{padding:3px 5px;font-size:10px}.evidence{padding:8px;font-size:10px}.section-row th{padding-left:10px}.empty-state{grid-template-columns:1fr;gap:24px;margin:32px 2px}.empty-state>div{border-left:1px solid var(--border);padding-left:18px}footer{display:block}footer a{display:block;margin-top:7px}}
@media(prefers-reduced-motion:reduce){.spinner{animation:none}}
@media print{:root,:root.light{--bg:white;--panel:white;--panel2:#f3f3f3;--text:#111;--muted:#444;--border:#ccc;--accent:#333;--fail:#a00000;--warn:#805000;--pass:#006030;--info:#004080;--unknown:#503080}body{font-size:11px}.shell{width:100%}.topbar,.intro,.search-card,.report-actions,.report-tools,footer,.empty-state{display:none!important}.report-header{margin-top:0}.summary{display:flex}.summary-card{padding:8px;border-radius:0;flex:1}.summary-card strong{font-size:18px}.table-wrap{border-radius:0}th,td{padding:8px}tr{break-inside:avoid}.evidence{font-size:9px}.method-note{display:none}}

.dkim-discovery-note{margin-top:12px}.checkbox-row{display:flex;align-items:center;gap:9px;margin-bottom:16px}.checkbox-row input{accent-color:var(--accent);width:16px;height:16px}.header-helper{margin-top:18px;padding-top:16px;border-top:1px solid var(--border)}.header-helper textarea{display:block;width:100%;max-width:720px;margin:8px 0;background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:10px;color:var(--text);resize:vertical;font:12px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace}.header-helper-actions{display:flex;align-items:center;gap:12px;margin-bottom:9px}.header-helper-actions button{white-space:nowrap}.header-helper .help{max-width:720px}.header-helper textarea:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

.fixes-panel{border:1px solid var(--border);border-radius:10px;background:var(--panel);margin:22px 0 0;padding:16px 18px}.fixes-panel>summary{font-weight:650;cursor:pointer;font-size:14px}.fixes-panel>#fixes-description{margin:10px 0 14px}.fix-plan{border:1px solid var(--border);border-radius:7px;margin:10px 0;background:var(--bg);scroll-margin-top:18px}.fix-plan>summary{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:12px;cursor:pointer}.fix-title{font-size:13px;font-weight:600}.fix-owner{font:11px ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted);overflow-wrap:anywhere}.fix-body{padding:0 15px 15px;border-top:1px solid var(--border);font-size:12px}.fix-body h4{font-size:12px;margin:16px 0 6px}.fix-body ol,.fix-body ul{padding-left:22px;margin:7px 0}.fix-body li{margin:5px 0}.fix-reason{font-size:13px}.fix-where{color:var(--accent)}.fix-findings{color:var(--muted)}.fix-note{color:var(--muted);border-left:2px solid var(--border);padding-left:10px;margin:12px 0 0}.fix-commands>summary{cursor:pointer;color:var(--muted)}.fix-commands .secondary{margin-top:8px}.fix-link{display:block;color:var(--accent);font-size:12px;margin-top:7px}.fix-body .evidence{font-size:11px}@media(max-width:650px){.fixes-panel{padding:14px 11px}.fix-plan>summary{gap:8px}.fix-owner{width:100%}.fix-body{padding:0 11px 12px}}@media print{.fix-link,.fix-commands button{display:none}.fixes-panel{box-shadow:none;break-inside:auto}.fix-plan{break-inside:avoid}.fix-body{font-size:10px}}

.fix-plan>summary::after{content:"+";margin-left:auto;color:var(--muted);font-size:18px}.fix-plan[open]>summary::after{content:"−"}

.ip-country{margin:0 0 10px;color:var(--muted);font-size:14px;line-height:1.45;overflow-wrap:anywhere}.geo-credit{display:inline;font-size:11px}

.ip-country{display:flex;align-items:center;gap:8px}.country-flag{display:block;flex-shrink:0;width:24px;height:18px;object-fit:contain;border:1px solid var(--border);border-radius:2px}

.ip-details{margin:0 0 12px;max-width:350px;color:var(--muted);font-size:12px;line-height:1.5;overflow-wrap:anywhere}.ip-details p{margin:5px 0}.ip-detail-label{font-weight:650}.ip-provider{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.ip-source-date,.ip-history,.ip-security-note{font-size:11px}.ip-location-warning{padding:8px 10px;border:1px solid var(--warn);border-radius:6px;color:var(--warn);background:var(--panel2)}.ip-security-note{border-top:1px solid var(--border);padding-top:7px}

#more-ip{margin-top:6px;color:var(--accent)}.ip-report-card{margin:0 0 24px;border:1px solid var(--border);border-radius:14px;background:var(--panel);padding:25px;box-shadow:var(--shadow)}.ip-report-heading{display:flex;gap:20px;align-items:center;justify-content:space-between;margin-bottom:18px}.ip-report-heading h2{margin:0;font-size:24px;overflow-wrap:anywhere}.ip-lookup-row{display:flex;gap:10px;margin:8px 0 12px}.ip-lookup-row input{flex:1;min-width:0;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:11px}.ip-analysis-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:20px}.ip-analysis-card{min-width:0;background:var(--panel2);border:1px solid var(--border);border-radius:10px;padding:18px;overflow-wrap:anywhere}.ip-analysis-card h3{margin:0 0 12px;font-size:16px}.ip-analysis-card p{font-size:13px;margin:8px 0}.ip-analysis-card .help{font-size:12px}.ip-fact strong{font-weight:650}.ip-resource-link{display:block;font-size:13px;margin:9px 0}.ip-connectivity{margin-top:20px;border-top:1px solid var(--border);padding-top:16px}.ip-connectivity summary{cursor:pointer;font-weight:650}.ip-connectivity .help{margin:12px 0}.ip-connectivity button{margin:8px 0}#ip-family-results{font-size:13px;overflow-wrap:anywhere}@media(max-width:650px){.ip-report-card{padding:18px}.ip-report-heading{display:block}.ip-report-heading .report-actions{margin-top:12px}.ip-report-heading h2{font-size:21px}.ip-analysis-grid{grid-template-columns:1fr}.ip-lookup-row{flex-direction:column}.ip-lookup-row button{padding:12px}.ip-analysis-card{padding:15px}}@media print{.ip-report-card{box-shadow:none}.ip-lookup-row,#ip-lookup-form,.ip-connectivity,#ip-report .report-actions{display:none}.ip-analysis-grid{grid-template-columns:1fr}.ip-analysis-card{break-inside:avoid}}

.ip-lookup-card{margin-bottom:24px}.ip-lookup-card h2{font-size:23px;margin-bottom:8px}.ip-lookup-card form{margin-top:16px}@media(max-width:650px){.ip-lookup-card{padding:18px}.ip-lookup-card h2{font-size:21px}}@media print{.ip-lookup-card{display:none}}

.ip-resolution:empty{display:none}.ip-resolution{background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:14px;margin:0 0 16px;overflow-wrap:anywhere}.ip-resolution p{margin:6px 0}.ip-resolution-title{font-weight:650}.ip-address-choices{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.ip-address-choices button{max-width:100%;white-space:normal;overflow-wrap:anywhere;text-align:left}.ip-address-choices button[aria-pressed="true"]{border-color:var(--accent);color:var(--accent)}@media print{.ip-address-choices{display:none}}

.tool-nav{display:flex;gap:8px 20px;flex-wrap:wrap;padding-top:18px;font-size:12px}.tool-nav a{color:var(--muted);padding:5px 0}.tool-nav a[aria-current="page"]{color:var(--accent);font-weight:700}.page-guide{margin:32px 0;padding:25px;border:1px solid var(--border);border-radius:14px;background:var(--panel);line-height:1.8}.page-guide h2{font-size:23px;margin:25px 0 10px}.page-guide h2:first-child{margin-top:0}.page-guide p,.page-guide li{font-size:14px;color:var(--muted)}.page-guide li{margin:8px 0}.page-guide code{font-size:12px;overflow-wrap:anywhere;color:var(--text)}.footer-links{display:flex;gap:16px;flex-wrap:wrap;align-items:flex-start}@media(max-width:650px){.page-guide{padding:18px}.page-guide h2{font-size:20px}.tool-nav{gap:6px 16px}.footer-links{flex-direction:column;gap:8px}}@media print{.tool-nav,.page-guide,.footer-links{display:none}}