:root {
  --navy: #24427A;
  --navy-2: #1A3160;
  --paper: #F6F5F2;
  --paper-2: #EEECE6;
  --white: #FFFFFF;
  --ink: #1C2433;
  --ink-2: #4B5563;
  --ink-3: #5A6271;
  --rule: #C9C4BA;
  --rule-2: #DEDAD2;
  --rule-strong: #8F8B80;
  --navy-tint: #E9EDF5;
  --green: #1B6E41;
  --amber: #7A4F00;
  --red: #A8231B;
  --grey: #5A6271;
  --scrim: rgba(28,36,51,.55);
  --serif: "Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { font-variant-numeric: tabular-nums; }
body { min-height: 100vh; display: flex; flex-direction: column; margin: 0; background: var(--paper); color: var(--ink); font: 400 13px/1.45 var(--sans); }
a { color: var(--navy); }
h1 { font: 600 26px/1.2 var(--serif); margin: 22px 0 14px; }
:focus-visible { outline: 2px solid var(--navy); outline-offset: 2px; }
.btn-primary:focus-visible { outline-color: #FFFFFF; }
.symbols { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--white); color: var(--navy); padding: 8px 12px; border: 1px solid var(--navy); }
.skip:focus { left: 8px; z-index: 10; }
#content:focus { outline: 0; }
.top { padding: 0 max(16px, calc((100% - 1200px) / 2 + 16px)); height: 46px; border-bottom: 1px solid var(--navy); display: flex; align-items: center; gap: 16px; }
.top .mark { width: 26px; height: 26px; }
.top .wordmark { font: 700 16px/1 var(--sans); color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.top > .mark + .wordmark { margin-left: -6px; }
.top nav { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.top nav a { text-decoration: none; padding: 4px 0; }
.top nav a[aria-current="page"] { border-bottom: 2px solid var(--navy); }
.top nav .who { color: var(--ink-2); }
.top nav form { margin: 0; }
.linkbtn { background: none; border: 0; padding: 0; color: var(--navy); font: inherit; text-decoration: underline; cursor: pointer; }
main { flex: 1; width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 16px 36px; }
footer { width: 100%; max-width: 1200px; margin: 36px auto 0; padding: 12px 16px 28px; border-top: 3px solid var(--navy); font: 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.section { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); border-bottom: 1px solid var(--ink); padding-bottom: 4px; margin: 26px 0 10px; }
.toast { display: flex; align-items: center; gap: 12px; background: var(--white); border: 1px solid var(--rule-strong); padding: 8px 12px; margin: 14px 0; }
.toast button { margin-left: auto; }
.toast.toast-out { opacity: 0; }
.error { color: var(--red); }
.error::before, .ok::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: currentColor; margin-right: 6px; vertical-align: middle; }
.ok { color: var(--green); }
.muted { color: var(--ink-2); }
.frame { max-width: 360px; margin: 72px auto; padding: 0 16px; text-align: center; }
.frame .mark { width: 40px; height: 40px; }
.frame .wordmark { display: block; font: 700 19px/1 var(--sans); color: var(--navy); margin-top: 10px; letter-spacing: .01em; }
.frame .tagline { color: var(--ink-2); margin: 6px 0 22px; }
.frame h1 { font-size: 19px; margin: 18px 0 10px; }
.frame form { text-align: left; } .frame .field input { width: 100%; }
.frame .section { text-align: left; }
hr { border: 0; border-top: 1px solid var(--rule); margin: 22px 0; }
.btn { display: inline-block; font: 600 13px/1 var(--sans); padding: 8px 12px; border-radius: 2px; border: 1px solid var(--rule-strong); background: var(--white); color: var(--ink); text-decoration: none; cursor: pointer; }
.btn-primary { background: var(--navy); border-color: var(--navy); color: #FFFFFF; }
.btn[aria-disabled="true"] { opacity: .5; cursor: not-allowed; }
.btn-block { display: block; width: 100%; min-height: 44px; }
.tbl { width: 100%; border-collapse: collapse; margin: 0 0 14px; }
.tbl caption { text-align: left; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); border-bottom: 1px solid var(--ink); padding-bottom: 4px; margin: 26px 0 10px; }
.tbl th { text-align: left; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; font-weight: 500; color: var(--ink-3); background: var(--paper-2); padding: 7px 8px; border-bottom: 1px solid var(--rule); }
.tbl td { padding: 7px 8px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.results tr:hover td { background: var(--paper-2); }
.tbl .num { text-align: right; }
.tbl .date { width: 168px; white-space: nowrap; }
.sub { color: var(--ink-2); font: 11.5px/1.5 var(--mono); overflow-wrap: anywhere; }
.empty { color: var(--ink-2); padding: 14px 0; }
.st::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }
.st-filled::before { background: currentColor; }
.st-hollow::before { box-shadow: inset 0 0 0 1.5px currentColor; }
.st-delivered, .st-verified { color: var(--green); } .st-bounced, .st-complained, .st-failed { color: var(--red); } .st-delayed { color: var(--amber); } .st-sent { color: var(--navy); } .st-queued, .st-sending, .st-pending { color: var(--grey); }
.seal { display: inline-flex; align-items: center; gap: 5px; } .seal-ic { width: 14px; height: 14px; }
.seal-granted { color: var(--green); } .seal-pending { color: var(--amber); } .seal-failed { color: var(--red); } .seal-none { color: var(--ink-3); }
.field { display: flex; flex-direction: column; gap: 4px; margin: 0 0 10px; }
.field > label { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
input:not([type="checkbox"]):not([type="hidden"]), select { height: 30px; padding: 0 8px; border: 1px solid var(--rule-strong); border-radius: 2px; background: var(--white); color: var(--ink); font: inherit; }
input::placeholder { color: var(--ink-3); opacity: 1; }
input[readonly] { background: var(--paper-2); }
.hint { color: var(--ink-3); margin: 0; } .field .error { margin: 0; }
.filters { display: flex; flex-wrap: wrap; gap: 10px 12px; align-items: flex-end; padding: 0 0 14px; border-bottom: 1px solid var(--rule); }
.filters .field { margin: 0; min-width: 140px; }
.filters details { display: contents; } .filters details::details-content { display: contents; } .filters summary { display: none; }
.filters summary::after { content: ""; display: inline-block; width: 7px; height: 7px; margin-left: 8px; border: solid currentColor; border-width: 0 1.5px 1.5px 0; transform: translateY(-2px) rotate(45deg); }
.filters details[open] summary::after { transform: translateY(2px) rotate(-135deg); }
.form { display: flex; flex-direction: column; gap: 10px; max-width: 480px; padding: 0 0 14px; } .form .field { margin: 0; } .form .btn { align-self: flex-start; }
.form input[type=number] { width: 160px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 14px 0; }
.actions form { margin: 0; }
.hold-form { display: inline-flex; align-items: center; gap: 8px; }
.pager { display: flex; gap: 8px; margin: 14px 0; }
.crumb { color: var(--ink-2); margin: 22px 0 0; } .crumb a { color: var(--ink-2); }
.crumb + h1 { margin-top: 8px; }
.statusline { display: flex; flex-wrap: wrap; gap: 0 8px; color: var(--ink-2); margin: 0 0 14px; }
.statusline span + span::before { content: "·"; margin-right: 8px; color: var(--ink-3); }
dl.kv { display: grid; grid-template-columns: 168px 1fr; gap: 0; margin: 0; }
dl.kv dt { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); padding: 6px 0; border-bottom: 1px solid var(--rule); }
dl.kv dd { margin: 0; padding: 6px 0; border-bottom: 1px solid var(--rule); overflow-wrap: anywhere; }
@media (min-width: 960px) { dl.kv { grid-template-columns: 168px 1fr 168px 1fr; column-gap: 32px; } }
.mono { font: 11.5px/1.55 var(--mono); }
.rail { list-style: none; margin: 0; padding: 0; }
.rail li { display: grid; grid-template-columns: 168px 24px 1fr; position: relative; padding: 0 0 18px; }
.rail li::before { content: ""; position: absolute; left: 172px; top: 14px; bottom: 0; width: 1px; background: var(--navy); }
.rail li:last-child::before { display: none; }
.rail time { color: var(--ink-2); }
.when { color: var(--ink-2); font: 11.5px/1.55 var(--mono); }
.rail .dot { width: 9px; height: 9px; border-radius: 50%; margin: 4px 0 0 0; background: var(--navy); }
.rail .dot-green { background: var(--green); } .rail .dot-red { background: var(--red); } .rail .dot-amber { background: var(--amber); }
.rail .dot-hollow { background: var(--paper); box-shadow: inset 0 0 0 1.5px var(--ink-3); }
.rail .name { font-weight: 600; } .rail .detail { color: var(--ink-2); }
.rail .hollow .name, .rail .hollow .detail { color: var(--ink-3); }
.rail .detail .mono { overflow-wrap: anywhere; }
.reply { background: var(--white); border: 1px solid var(--rule); border-left: 2px solid var(--navy); padding: 6px 8px; margin: 6px 0 0; font: 11.5px/1.5 var(--mono); overflow-wrap: anywhere; white-space: pre-wrap; }
.proof { background: var(--white); border: 1px solid var(--navy); outline: 1px solid var(--navy); outline-offset: 4px; padding: 18px 20px; margin: 10px 0 20px; break-inside: avoid; }
.proof .statement { font: 400 16.5px/1.4 var(--serif); margin: 0 0 14px; }
.proof dl { display: grid; grid-template-columns: 168px 1fr; margin: 0; }
.proof dt { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); padding: 6px 0; border-top: 1px solid var(--rule-2); }
.proof dd { margin: 0; padding: 6px 0; border-top: 1px solid var(--rule-2); display: flex; align-items: flex-start; gap: 8px; }
.proof dd > :first-child { min-width: 0; }
.hx { display: inline-grid; grid-template-columns: repeat(4, max-content); gap: 0 14px; font: 11.5px/1.55 var(--mono); }
.cp { width: 24px; height: 24px; padding: 0; border: 1px solid var(--rule-strong); background: var(--white); color: var(--ink-2); border-radius: 2px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; }
.cp svg { width: 14px; height: 14px; } .cp:hover, .cp:focus-visible { color: var(--navy); border-color: var(--navy); }
.cp[data-done] { color: var(--green); }
.cp .g-check { display: none; } .cp[data-done] .g-copy { display: none; } .cp[data-done] .g-check { display: block; }
.verified { margin: 14px 0 0; padding-top: 10px; border-top: 1px solid var(--rule-2); }
dialog { width: 640px; max-width: calc(100vw - 32px); border: 1px solid var(--navy); border-radius: 2px; padding: 18px 20px; background: var(--white); color: var(--ink); }
dialog::backdrop { background: var(--scrim); }
dialog h2 { font: 600 19px/1.2 var(--serif); margin: 0 0 12px; }
.dlg-foot { display: flex; gap: 8px; align-items: center; margin-top: 14px; }
.dlg-foot .note { margin-left: auto; color: var(--ink-3); }
.proves { padding-left: 22px; } .proves li { margin: 0 0 6px; }
.notprove { list-style: none; padding: 0; } .notprove li { margin: 0 0 6px; padding-left: 16px; position: relative; }
.notprove li::before { content: "-"; position: absolute; left: 0; color: var(--red); font-weight: 700; }
.switch { display: inline-flex; align-items: center; gap: 8px; }
.switch input { width: 32px; height: 18px; appearance: none; border: 1px solid var(--rule-strong); border-radius: 9px; background: var(--white); position: relative; margin: 0; cursor: pointer; }
.switch input::after { content: ""; position: absolute; top: 2px; left: 2px; width: 12px; height: 12px; border-radius: 50%; background: var(--ink-3); }
.switch input:checked { background: var(--navy); border-color: var(--navy); } .switch input:checked::after { left: 16px; background: #FFFFFF; }
.keybox { background: var(--white); border: 1px solid var(--rule-strong); padding: 10px 12px; font: 12px/1.5 var(--mono); overflow-wrap: anywhere; display: flex; gap: 8px; align-items: flex-start; }
.block { padding: 14px 0; border-bottom: 1px solid var(--rule); }
.block h2 { font: 600 19px/1.2 var(--serif); margin: 0 0 6px; }
.block.domain form { margin: 0 0 10px; }
.tbl.dns td { overflow-wrap: anywhere; }
.tbl.dns .cp { margin-left: 8px; vertical-align: top; }
fieldset.field { border: 0; padding: 0; margin: 0 0 10px; }
fieldset.field legend { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); padding: 0; margin-bottom: 4px; }
.inline-form { display: inline-flex; gap: 6px; align-items: center; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.admin-nav { display: flex; gap: 18px; margin: 0 0 22px; border-bottom: 1px solid var(--rule); }
.admin-nav a { text-decoration: none; padding: 6px 0 8px; margin-bottom: -1px; }
.admin-nav a[aria-current="page"] { border-bottom: 2px solid var(--navy); font-weight: 600; }
#dl-frame { display: none; }
@media (max-width: 719px) {
  main, footer { padding-left: 16px; padding-right: 16px; }
  .top nav .who { display: none; }
  .top nav { gap: 10px; } .top nav a, .top nav .linkbtn { white-space: nowrap; }
  .top nav a, .top nav .linkbtn { padding: 12px 0; }
  input:not([type="checkbox"]):not([type="hidden"]), select, .btn, .btn-block { min-height: 44px; font-size: 14px; }
  .btn, .btn-block { display: inline-flex; align-items: center; justify-content: center; }
  .filters details { display: block; width: 100%; } .filters details::details-content { display: block; } .filters summary { display: inline-block; list-style: none; cursor: pointer; }
  .filters .field { width: 100%; }
  .tbl thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .tbl, .tbl caption, .tbl tbody, .tbl tr, .tbl td { display: block; width: 100%; }
  .tbl tr { padding: 12px 0; border-bottom: 1px solid var(--rule); }
  .tbl td { border: 0; padding: 2px 0; }
  .tbl td:empty { display: none; }
  .tbl td::before { content: attr(data-label); display: block; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
  .results tr { display: flex; flex-wrap: wrap; align-items: baseline; }
  .results td[data-label="Subject"] { font-size: 14px; } .results td[data-label="To"] { font-size: 13px; }
  .results td[data-label="Date (London)"], .results td[data-label="Status"] { display: inline-block; width: auto; margin-right: 12px; }
  .results td[data-label="Date (London)"] { order: -2; } .results td[data-label="Status"] { order: -1; }
  .results td[data-label="Date (London)"]::before, .results td[data-label="Status"]::before { display: none; }
  .results td[data-label="Subject"]::before { display: none; }
  .statusline { flex-direction: column; gap: 2px; } .statusline span + span::before { content: none; }
  .actions .btn, .actions form { width: 100%; } .actions .btn { display: flex; text-align: center; } .actions .hold-form { flex-wrap: wrap; }
  dl.kv { grid-template-columns: 1fr; } dl.kv dt { border: 0; padding-bottom: 0; }
  .rail li { grid-template-columns: 24px 1fr; } .rail li time, .rail li .when { grid-column: 2; order: -1; }
  .rail li::before { left: 4px; }
  .hx { grid-template-columns: repeat(2, max-content); }
  .cp { position: relative; } .cp::after { content: ""; position: absolute; inset: -10px; }
  .proof dl { grid-template-columns: 1fr; } .proof dt { border: 0; padding-bottom: 0; }
  dialog { width: auto; max-height: calc(100vh - 32px); overflow: auto; }
  .dlg-foot { flex-wrap: wrap; } .dlg-foot .note { flex-basis: 100%; margin-left: 0; }
  .access td[data-label="From"] span { pointer-events: none; }
}
@media print {
  .top nav, .actions, .cp, .skip, .toast, .pager, .filters, dialog, footer { display: none !important; }
  body { background: #FFFFFF; } .proof { break-inside: avoid; }
  .rail li::before, .rail .dot, .st::before, .ok::before, .error::before, .seal-ic { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .verified.muted, .access, .access + p { display: none !important; }
}
@media (prefers-reduced-motion: no-preference) { .toast { transition: opacity 150ms; } }