/* ethdns.com: one stylesheet for the whole site */

@font-face { font-family: "Exo 2"; src: url("fonts/exo-2-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Exo 2"; src: url("fonts/exo-2-600.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Exo 2"; src: url("fonts/exo-2-700.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }

:root {
  --bg: #15171a; --bg-2: #1a1d21; --card: #202328; --card-2: #262a30; --code: #101215;
  --line: #2e3239; --line-2: #3a3f47;
  --text: #e6e8eb; --body: #c3c8cf; --muted: #9da3ad; --faint: #80878f;
  --accent: #5cc8ff; --on-accent: #0c1822; --warm: #f5c26b;
  --sans: "Exo 2", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17.5px/1.65 var(--sans); }
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
a.term { color: inherit; text-decoration-color: var(--line-2); }
a.term:hover { color: var(--accent); text-decoration-color: currentColor; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
svg { max-width: 100%; }
code { font: .86em var(--mono); background: var(--card-2); padding: 2px 6px; border-radius: 4px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.acc-s { stroke: var(--accent); }
.acc-f { fill: var(--accent); }
.skip { position: absolute; left: -9999px; top: 8px; }
.skip:focus { left: 16px; z-index: 10; background: var(--accent); color: var(--on-accent); padding: 8px 14px; border-radius: 6px; }

/* header */
.site-header { border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; min-height: 68px; gap: 34px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 22px; letter-spacing: .01em; }
.brand svg { width: 28px; height: 28px; flex: none; }
.main-nav { margin-left: auto; }
.main-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 30px; }
.main-nav a { position: relative; display: block; color: var(--muted); text-decoration: none; font-size: 16px; font-weight: 600; padding: 4px 0; }
.main-nav a::after { content: ""; position: absolute; left: 50%; bottom: -8px; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); transform: translateX(-50%) scale(0); transition: transform .18s ease; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--text); }
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after { transform: translateX(-50%) scale(1); }
.cta { color: var(--text); text-decoration: none; font-weight: 600; font-size: 15.5px; padding: 7px 16px; border: 1px solid var(--line-2); border-radius: 6px; white-space: nowrap; }
.cta:hover, .cta[aria-current="page"] { border-color: var(--accent); }
.menu-btn { display: none; font: 600 15.5px var(--sans); color: var(--text); background: transparent; border: 1px solid var(--line-2); border-radius: 6px; padding: 7px 14px; cursor: pointer; }
.menu-btn:hover, .site-header.open .menu-btn { border-color: var(--accent); }

/* buttons */
.btns { display: flex; gap: 10px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 10px 18px; border-radius: 6px; text-decoration: none; font-weight: 600; font-size: 16px; color: var(--text); border: 1px solid var(--line-2); }
.btn:hover { border-color: var(--accent); }
.btn.main { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.sm { padding: 6px 13px; font-size: 14.5px; }
.copy { display: inline-block; font: 600 14.5px var(--sans); cursor: pointer; background: transparent; color: var(--muted); border: 1px solid var(--line-2); border-radius: 6px; padding: 6px 13px; }
.copy:hover { color: var(--text); border-color: var(--accent); }

/* home: hero */
.hero { padding: 44px 0 0; }
.diagram { width: 100%; height: auto; display: block; }
.diagram .trace { stroke-dasharray: 1500; stroke-dashoffset: 1500; animation: draw 2.4s ease-out .2s forwards; }
.diagram-sm { display: none; }
.diagram-sm .trace { stroke-dasharray: 420; stroke-dashoffset: 420; }
.led { animation: pulse 2.4s ease-in-out 5; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes pulse { 50% { opacity: .35; } }
.hero-text { display: grid; grid-template-columns: 1.25fr 1fr; gap: 48px; align-items: end; padding: 28px 0 44px; }
.over { color: var(--muted); font-size: 15.5px; margin: 0 0 10px; }
.hero h1 { font-size: 54px; line-height: 1.06; margin: 0; font-weight: 700; letter-spacing: -.005em; }
.hero h1 span { color: var(--accent); }
.lead { color: var(--body); margin: 0 0 22px; font-size: 18.5px; }
.facts { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.facts div { padding: 16px 20px; border-left: 1px solid var(--line); }
.facts div:nth-child(4n+1) { border-left: 0; padding-left: 0; }
.facts div:nth-child(n+5) { border-top: 1px solid var(--line); }
.facts b { display: block; font-size: 17px; }
.facts span { color: var(--muted); font-size: 14.5px; }

/* sections */
.section { padding: 60px 0; }
.alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section h2 { font-size: 30px; line-height: 1.2; margin: 0 0 8px; font-weight: 700; }
.sub { color: var(--muted); margin: 0 0 30px; max-width: 720px; }
.two { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: start; }
.two p { color: var(--body); }

.kv { margin: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.kv div { display: grid; grid-template-columns: 130px 1fr; gap: 16px; padding: 12px 18px; border-bottom: 1px solid var(--line); background: var(--card); }
.kv div:last-child { border-bottom: 0; }
.kv dt { color: var(--muted); font-size: 15px; }
.kv dd { margin: 0; font-size: 16px; }

.why { margin-bottom: 40px; }
.punch { font-size: 27px; line-height: 1.3; font-weight: 600; margin: 6px 0 0; padding-left: 22px; border-left: 3px solid var(--accent); color: var(--text); }
.punch span { display: block; color: var(--muted); font-size: 17px; font-weight: 400; margin-top: 10px; }

.contacts { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.contact { display: grid; grid-template-columns: 48px 180px 1fr auto; gap: 20px; align-items: center; padding: 18px 22px; background: var(--card); border-bottom: 1px solid var(--line); }
.contact:last-child { border-bottom: 0; }
.ic { width: 48px; height: 48px; border-radius: 8px; background: var(--card-2); display: grid; place-items: center; flex: none; }
.contact h3 { margin: 0; font-size: 18px; }
.contact p { margin: 0; color: var(--muted); font-size: 16px; }
.mail { font-family: var(--mono); font-size: 14.5px; text-decoration: none; padding: 7px 12px; border: 1px solid var(--line-2); border-radius: 6px; white-space: nowrap; }
.mail:hover { border-color: var(--accent); }
.biz { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 16px; padding: 16px 22px; border: 1px dashed var(--line-2); border-radius: 8px; }
.biz p { margin: 0; color: var(--body); }

/* standards: why it matters + in practice */
.rules { border-top: 1px solid var(--line); }
.rule { display: grid; grid-template-columns: 1fr 1.15fr; gap: 52px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.rule h3 { font-size: 22px; line-height: 1.25; margin: 0 0 10px; }
.rule h3 i { font: normal 14px var(--mono); color: var(--accent); margin-right: 12px; }
.rule p { margin: 0; color: var(--body); }
.lbl { color: var(--faint); font-size: 14px; margin: 2px 0 4px; }
.practice { list-style: none; margin: 0; padding: 0; }
.practice li { display: grid; grid-template-columns: 1fr auto; gap: 18px; align-items: baseline; padding: 8px 0; border-bottom: 1px dashed var(--line); color: var(--body); font-size: 16.5px; margin: 0; }
.practice li:last-child { border-bottom: 0; }
.practice .ref a { font: 13.5px var(--mono); text-decoration: none; white-space: nowrap; margin-left: 10px; }
.practice .ref a:hover { text-decoration: underline; }

.stance { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.marks { list-style: none; margin: 0; padding: 0; }
.marks li { position: relative; padding: 11px 0 11px 34px; border-bottom: 1px solid var(--line); color: var(--body); margin: 0; }
.marks li b { color: var(--text); font-weight: 600; }
.marks li::before { position: absolute; left: 4px; top: 10px; font: 700 18px/1.4 var(--mono); }
.marks.no li::before { content: "\00d7"; color: var(--warm); }
.marks.yes li::before { content: "+"; color: var(--accent); }

.how, .steps { list-style: none; margin: 0; padding: 0; counter-reset: n; }
.how li, .steps li { counter-increment: n; display: grid; grid-template-columns: 40px 1fr; padding: 13px 0; border-bottom: 1px solid var(--line); color: var(--body); margin: 0; }
.how li:first-child, .steps li:first-child { border-top: 1px solid var(--line); }
.how li::before, .steps li::before { content: counter(n, decimal-leading-zero); font: 14px/1.9 var(--mono); color: var(--accent); }
.how b, .steps b { color: var(--text); font-weight: 600; }

.h3 { font-size: 22px; margin: 56px 0 8px; }
.vendors { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.vendors a { display: flex; align-items: center; gap: 14px; background: var(--card); padding: 16px 20px; color: var(--text); text-decoration: none; }
.vendors a:hover { background: var(--card-2); }
.vlogo { width: 28px; height: 28px; flex: none; color: var(--muted); }
.vendors a:hover .vlogo { color: var(--text); }
.vendors b { display: block; font-size: 18px; }
.vendors span span { display: block; color: var(--muted); font-size: 15px; line-height: 1.45; }
.vnote { color: var(--faint); font-size: 14px; margin: 10px 0 0; }
.hw { margin-top: 56px; }
.hw h3 { font-size: 22px; margin: 0 0 8px; }
.hwrow { display: grid; grid-template-columns: 110px 1fr; gap: 20px; align-items: start; padding: 14px 0; border-top: 1px solid var(--line); }
.hwlabel { color: var(--muted); margin: 12px 0 0; }
.brands.compact a { flex: 1 1 130px; padding: 10px 12px; gap: 10px; }
.brands.compact .vlogo { width: 20px; height: 20px; }
.brands.compact b { font-size: 15px; }
.brands { display: flex; flex-wrap: wrap; gap: 8px; }
.brands a { flex: 1 1 180px; display: flex; align-items: center; gap: 12px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); padding: 11px 14px; color: var(--text); text-decoration: none; }
.brands a:hover { border-color: var(--line-2); background: var(--card-2); }
.brands a:hover .vlogo { color: var(--text); }
.brands .vlogo { width: 24px; height: 24px; }
.brands b { display: block; font-size: 16px; }
.brands span span { display: block; color: var(--muted); font-size: 14px; line-height: 1.4; }

/* inner pages: head */
.page-head { border-bottom: 1px solid var(--line); }
.ph { display: grid; grid-template-columns: 1fr 290px; gap: 40px; align-items: center; padding-top: 30px; padding-bottom: 22px; }
.crumbs { font-size: 15px; color: var(--muted); margin: 0 0 12px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--text); }
.crumbs span { color: var(--faint); margin: 0 6px; }
.ph h1 { font-size: 46px; line-height: 1.08; margin: 0 0 14px; font-weight: 700; }
.ph .lead { max-width: 660px; margin: 0; }
.robot { width: 100%; height: auto; display: block; }

/* inner pages: document with a side column */
.doc { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 64px; padding-top: 44px; padding-bottom: 76px; }
.doc.wide { display: block; }
.prose { max-width: 760px; }
.prose > :first-child { margin-top: 0; }
.prose h2 { font-size: 27px; line-height: 1.2; margin: 54px 0 12px; scroll-margin-top: 20px; }
.prose h3 { font-size: 20px; line-height: 1.3; margin: 30px 0 8px; }
.prose p, .prose li { color: var(--body); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin: 7px 0; }
.prose li::marker { color: var(--faint); }
.prose strong { color: var(--text); font-weight: 600; }
.prose .practice, .prose .steps, .prose .marks { margin: 16px 0; padding-left: 0; }
.note { border-left: 3px solid var(--warm); background: var(--card); padding: 14px 18px; border-radius: 0 8px 8px 0; margin: 22px 0; }
.note.acc { border-left-color: var(--accent); }
.note p { margin: 0; }
.note p + p { margin-top: 8px; }
.updated { color: var(--faint); font-size: 15px; margin-top: 48px; }
.cards + .prose { margin-top: 54px; }
.doc.wide .biz { margin-top: 44px; }
.side .kv div { grid-template-columns: 78px 1fr; gap: 10px; padding: 10px 14px; }

.side { position: sticky; top: 24px; align-self: start; display: grid; gap: 18px; }
.box { border: 1px solid var(--line); border-radius: 8px; background: var(--card); padding: 16px 18px; }
.box .t { color: var(--faint); font-size: 14px; margin: 0 0 6px; }
.box .addr { font: 15px var(--mono); overflow-wrap: anywhere; margin: 0; color: var(--text); }
.box p { margin: 0; font-size: 15px; color: var(--muted); }
.box .row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.toc ol { list-style: none; margin: 0; padding: 0; }
.toc a { display: block; color: var(--muted); text-decoration: none; font-size: 15px; padding: 4px 0; }
.toc a:hover { color: var(--text); }

.tpl { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; margin: 18px 0; }
.tpl-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 8px 14px; background: var(--card-2); border-bottom: 1px solid var(--line); font-size: 14.5px; color: var(--muted); }
.tpl pre { margin: 0; padding: 16px 18px; background: var(--code); font: 14px/1.7 var(--mono); color: #d3d7dd; white-space: pre-wrap; overflow-wrap: anywhere; }

.table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 16px; }
.table th, .table td { text-align: left; padding: 11px 14px 11px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { color: var(--faint); font-weight: 400; font-size: 14px; }
.table td { color: var(--body); }
.table td:first-child { color: var(--text); white-space: nowrap; }
.table .m { font: 14.5px var(--mono); }

/* proposals: expertise by layer */
.stack { margin: 18px 0; border-top: 1px solid var(--line); }
.stack div { display: grid; grid-template-columns: 190px 1fr; gap: 18px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.stack dt { color: var(--text); font-weight: 600; font-size: 16.5px; }
.stack dt i { font: normal 13px var(--mono); color: var(--accent); margin-right: 8px; }
.stack dd { margin: 0; color: var(--body); font-size: 16px; }
.stack-note { font-size: 16px; }

/* contact page cards */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card { display: flex; flex-direction: column; gap: 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); padding: 22px; }
.card-top { display: flex; align-items: center; gap: 14px; }
.card h2 { font-size: 21px; margin: 0; }
.card p { margin: 0; color: var(--body); }
.card .addr { font: 15.5px var(--mono); color: var(--text); margin-top: auto; padding-top: 6px; }
.card .row { display: flex; flex-wrap: wrap; gap: 8px; }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: 36px 0 28px; }
.fgrid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 28px; }
.fgrid p { margin: 0 0 8px; color: var(--muted); font-size: 15px; }
.fgrid .fname { color: var(--text); font-weight: 700; font-size: 17px; }
.fgrid .t { color: var(--faint); font-size: 14px; margin-bottom: 10px; }
.fgrid .fnote { margin-top: 14px; font-size: 14px; color: var(--faint); }
.fgrid .fnote a { color: var(--muted); }
.fgrid ul { list-style: none; margin: 0; padding: 0; }
.fgrid li a { display: block; color: var(--muted); text-decoration: none; font-size: 15px; margin-bottom: 6px; }
.fgrid li a:hover { color: var(--text); }
.fbottom { margin-top: 26px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--faint); font-size: 14px; }
.fbottom p { margin: 0; }
.fbottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; }
.badges { display: flex; gap: 8px; }
.badge { display: inline-flex; border: 1px solid var(--line-2); border-radius: 4px; overflow: hidden; text-decoration: none; font-size: 13px; line-height: 1; }
.badge b { font: 700 13px/1 var(--mono); color: var(--accent); background: var(--card-2); padding: 6px 7px; }
.badge span { color: var(--muted); padding: 6px 8px; }
.badge:hover { border-color: var(--accent); }

@media (max-width: 960px) {
  .bar { flex-wrap: wrap; gap: 0 20px; padding-top: 12px; }
  .brand { margin-right: auto; }
  .main-nav { order: 3; width: 100%; margin: 0; }
  .main-nav ul { flex-wrap: wrap; gap: 4px 24px; padding: 10px 0 14px; }
  .hero-text, .two, .rule, .stance, .doc { grid-template-columns: 1fr; gap: 24px; }
  .ph { grid-template-columns: 1fr 210px; gap: 24px; }
  .side { position: static; order: -1; }
  .toc ol { display: flex; flex-wrap: wrap; gap: 0 18px; }
  .facts { grid-template-columns: 1fr 1fr; }
  .facts div { border-top: 1px solid var(--line); border-left: 1px solid var(--line); padding-left: 20px; }
  .facts div:nth-child(odd) { border-left: 0; padding-left: 0; }
  .facts div:nth-child(-n+2) { border-top: 0; }
  .hero h1 { font-size: 40px; }
  .ph h1 { font-size: 36px; }
  .contact { grid-template-columns: 48px 1fr; }
  .contact p, .contact .mail { grid-column: 2; justify-self: start; }
  .biz { flex-direction: column; align-items: flex-start; }
  .vendors { grid-template-columns: 1fr 1fr; }
  .cards { grid-template-columns: 1fr; }
  .fgrid { grid-template-columns: 1fr 1fr; }
  .stance { gap: 40px; }
}
@media (max-width: 600px) {
  .diagram { display: none; }
  .diagram.diagram-sm { display: block; }
  .hero { padding-top: 20px; }
  /* phone menu: collapsed behind the Menu button (nojs.css shows the links when scripts are off) */
  .menu-btn { display: inline-block; }
  .bar { gap: 0 8px; }
  .cta, .menu-btn { padding: 6px 11px; font-size: 15px; }
  .main-nav { display: none; }
  .site-header.open .main-nav { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; padding: 6px 0 12px; }
  .main-nav li + li { border-top: 1px solid var(--line); }
  .main-nav a { padding: 11px 0; font-size: 17px; }
  .main-nav a::after { left: auto; right: 4px; bottom: 50%; transform: translateY(50%) scale(0); }
  .main-nav a[aria-current="page"]::after { transform: translateY(50%) scale(1); }
  /* page head: small robot next to the heading, the lead below both */
  .ph { grid-template-columns: minmax(0, 1fr) 104px; gap: 0 12px; align-items: end; padding-bottom: 28px; }
  .ph h1 { hyphens: auto; }
  .ph > div { display: contents; }
  .ph .crumbs { grid-column: 1; grid-row: 1; }
  .ph h1 { grid-column: 1; grid-row: 2; }
  .ph .robot { grid-column: 2; grid-row: 1 / 3; align-self: end; margin-bottom: 12px; }
  .ph .lead { grid-column: 1 / -1; grid-row: 3; }
}
@media (max-width: 520px) {
  body { font-size: 17px; }
  .wrap { padding: 0 16px; }
  .main-nav ul { gap: 2px 20px; }
  .main-nav a { font-size: 15.5px; }
  .brand { font-size: 21px; }
  .btns .btn { flex: 1 1 100%; text-align: center; }
  .section { padding: 44px 0; }
  .section h2 { font-size: 26px; }
  .punch { font-size: 23px; }
  .contact { grid-template-columns: 40px 1fr; gap: 6px 14px; padding: 16px; }
  .contact .ic { width: 40px; height: 40px; }
  .rule { padding: 24px 0; }
  .ph { padding-top: 22px; }
  .ph h1 { font-size: 32px; }
  .doc { padding-top: 32px; }
  .prose h2 { font-size: 24px; margin-top: 44px; }
  .card { padding: 18px; }
  .fgrid { grid-template-columns: 1fr 1fr; gap: 22px; }
  .fgrid > div:first-child { grid-column: 1 / -1; }
  .practice li { grid-template-columns: 1fr; gap: 2px; }
  .practice .ref a { margin: 0 10px 0 0; }
  .kv div { grid-template-columns: 1fr; gap: 2px; }
  .stack div { grid-template-columns: 1fr; gap: 2px; }
  .hwrow { grid-template-columns: 1fr; gap: 8px; }
  .hwlabel { margin: 0; }
  .table td:first-child { white-space: normal; }
  .vendors { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .ph { grid-template-columns: minmax(0, 1fr) 76px; }
  .ph h1 { font-size: 27px; }
  .hero h1 { font-size: 34px; }
  .facts { grid-template-columns: 1fr; }
  .facts div { border-left: 0; padding-left: 0; }
  .facts div:nth-child(n+2) { border-top: 1px solid var(--line); }
}
@media (prefers-reduced-motion: reduce) {
  .diagram .trace { animation: none; stroke-dashoffset: 0; }
  .led { animation: none; }
  .main-nav a::after { transition: none; }
}
@media print {
  :root { --bg: #fff; --bg-2: #fff; --card: #fff; --card-2: #f2f2f2; --code: #f4f4f4; --line: #bbb; --line-2: #999;
          --text: #000; --body: #111; --muted: #333; --faint: #555; --accent: #004c80; --on-accent: #fff; }
  body { font-size: 12pt; }
  .site-header, .site-footer, .robot, .diagram, .btns, .row, .copy, .skip, .side, .tpl-head button { display: none !important; }
  .doc, .two, .rule, .stance, .hero-text { display: block; }
  .ph { grid-template-columns: 1fr; }
  .page-head, .alt { border: 0; }
  .prose a[href^="http"]::after { content: " (" attr(href) ")"; font-size: .85em; color: var(--muted); }
}