/* Mailproof — paper & ink */
:root {
  --paper: #ede4cf;
  --paper-deep: #e2d6b8;
  --paper-light: #f5efe2;
  --ink: #172544;
  --ink-2: #223257;
  --ink-soft: rgba(23, 37, 68, .64);
  --ink-mute: rgba(23, 37, 68, .42);
  --ink-faint: rgba(23, 37, 68, .16);
  --ink-hair: rgba(23, 37, 68, .09);
  --rust: #8d3b2b;
  --ochre: #8a6a22;
  --moss: #3b5a46;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Mono", "JetBrains Mono", Consolas, "SF Mono", Menlo, monospace;
  --wrap: 1080px;
  --radius: 3px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  background-image:
    radial-gradient(ellipse at 50% -10%, rgba(255, 255, 255, .35), transparent 60%),
    repeating-linear-gradient(0deg, rgba(23, 37, 68, .018) 0 1px, transparent 1px 3px);
  color: var(--ink);
  font: 17px/1.6 var(--sans);
  font-feature-settings: "kern", "liga";
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.site-main { flex: 1 0 auto; }
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--rust); }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; line-height: 1.15; letter-spacing: -.01em; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
code, kbd, .mono { font-family: var(--mono); font-size: .92em; }
hr { border: 0; border-top: 1px solid var(--ink-faint); margin: 2rem 0; }
.wrap { width: min(var(--wrap), 100% - 40px); margin-inline: auto; }
.narrow { width: min(720px, 100% - 40px); }
.eyebrow { font-family: var(--mono); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: .8rem; }
.lead { font-size: 1.18rem; color: var(--ink-2); max-width: 60ch; }
.muted { color: var(--ink-soft); }
.small { font-size: .9rem; }
.skip { position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--paper); padding: .5rem 1rem; }
.skip:focus { left: 1rem; z-index: 10; }

/* Header */
.site-head { border-bottom: 1px solid var(--ink-faint); background: rgba(237, 228, 207, .85); backdrop-filter: blur(6px); position: sticky; top: 0; z-index: 5; }
.head-row { display: flex; align-items: center; gap: 2rem; min-height: 66px; }
.brand { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); }
.brand-name { font-family: var(--serif); font-size: 1.35rem; letter-spacing: .01em; }
.site-nav { display: flex; gap: 1.6rem; margin-left: auto; }
.site-nav a { text-decoration: none; font-size: .96rem; padding: .3rem 0; border-bottom: 1px solid transparent; }
.site-nav a[aria-current] { border-bottom-color: var(--ink); }
.lang-nav { display: flex; gap: .2rem; font-family: var(--mono); font-size: .74rem; letter-spacing: .08em; }
.lang-nav a { text-decoration: none; padding: .2rem .45rem; border: 1px solid transparent; border-radius: var(--radius); color: var(--ink-soft); }
.lang-nav a[aria-current] { border-color: var(--ink-faint); color: var(--ink); }

/* Footer */
.site-foot { border-top: 1px solid var(--ink-faint); margin-top: 5rem; padding: 2rem 0; font-size: .9rem; color: var(--ink-soft); }
.foot-row { display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-items: center; }
.foot-row p { margin: 0; }
.foot-nav { display: flex; gap: 1.4rem; margin-left: auto; }
.foot-nav a { text-decoration: none; color: var(--ink-soft); }
.foot-copy { width: 100%; font-size: .8rem; }

/* Buttons & forms */
.btn { display: inline-flex; align-items: center; gap: .5rem; background: var(--ink); color: var(--paper); border: 1px solid var(--ink); padding: .7rem 1.3rem; font: inherit; font-size: .98rem; border-radius: var(--radius); cursor: pointer; text-decoration: none; transition: background .15s, color .15s; }
.btn:hover { background: var(--ink-2); color: var(--paper); }
.btn:disabled { opacity: .55; cursor: default; }
.btn-outline { background: transparent; color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); }
.btn-sm { padding: .4rem .85rem; font-size: .86rem; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--ink-soft); padding-inline: .6rem; }
.btn-ghost:hover { background: var(--ink-hair); color: var(--ink); }
input[type=text], input[type=email], input[type=url], input[type=number], input[type=password], textarea, select {
  font: inherit; color: var(--ink); background: var(--paper-light); border: 1px solid var(--ink-faint); border-radius: var(--radius); padding: .6rem .8rem; width: 100%;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--ink); outline-offset: 1px; }
label { display: block; font-size: .9rem; color: var(--ink-soft); margin-bottom: .3rem; }
.field { margin-bottom: 1.1rem; }
.form-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.form-row > * { flex: 1 1 220px; }
.notice { border: 1px solid var(--ink-faint); border-left: 3px solid var(--ink); padding: .8rem 1rem; background: var(--paper-light); margin: 1rem 0; }
.notice.error { border-left-color: var(--rust); }
.notice.ok { border-left-color: var(--moss); }

/* Hero */
.hero { padding: 4.5rem 0 2.5rem; display: grid; grid-template-columns: 1.3fr 1fr; gap: 3rem; align-items: start; }
.hero h1 { max-width: 15ch; }
.checks { list-style: none; padding: 0; margin: 2.2rem 0 0; border-top: 1px solid var(--ink-faint); }
.checks li { padding: .75rem 0; border-bottom: 1px solid var(--ink-faint); display: grid; grid-template-columns: 2.2rem 1fr; gap: .4rem; font-size: .98rem; }
.checks li::before { content: counter(check, decimal-leading-zero); counter-increment: check; font-family: var(--mono); font-size: .78rem; color: var(--ink-mute); padding-top: .25rem; }
.checks { counter-reset: check; }

/* Envelope (test card) */
.envelope { position: relative; background: var(--paper-light); border: 1px solid var(--ink-faint); border-radius: var(--radius); padding: clamp(1.4rem, 4vw, 3rem); box-shadow: 0 1px 0 rgba(255, 255, 255, .6) inset, 0 18px 40px -30px rgba(23, 37, 68, .45); }
.envelope::before { content: ""; position: absolute; inset: 8px; border: 1px solid var(--ink-hair); pointer-events: none; border-radius: 2px; }
.stamp { position: absolute; top: clamp(1rem, 3vw, 2rem); right: clamp(1rem, 3vw, 2rem); border: 1px dashed var(--ink-mute); padding: .55rem .8rem; font-family: var(--mono); font-size: .84rem; letter-spacing: .1em; color: var(--ink-soft); transform: rotate(2deg); background: var(--paper); min-width: 9ch; text-align: center; }
.stamp.is-set { color: var(--ink); border-style: solid; }
.stamp small { display: block; font-size: .62rem; letter-spacing: .14em; color: var(--ink-mute); margin-bottom: .2rem; }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; }
.step { position: relative; padding: 1.6rem 0 1.6rem 3.4rem; border-top: 1px solid var(--ink-faint); }
.step:first-child { border-top: 0; padding-top: .4rem; }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: 1.5rem; width: 2.1rem; height: 2.1rem; border: 1px solid var(--ink); border-radius: 50%; display: grid; place-items: center; font-family: var(--serif); font-size: 1.05rem; background: var(--paper-light); }
.step:first-child::before { top: .3rem; }
.step.is-done::before { background: var(--ink); color: var(--paper); }
.step.is-locked { opacity: .45; }
.step h3 { margin-bottom: .4rem; }
.step p { max-width: 64ch; }
.step-body { margin-top: 1rem; }
.captcha-row { display: flex; align-items: center; gap: .9rem; flex-wrap: wrap; }
.captcha-img { height: 52px; border: 1px solid var(--ink-faint); border-radius: var(--radius); background: #fff; }
.captcha-row input { width: 9ch; font-family: var(--mono); letter-spacing: .2em; text-transform: uppercase; }
.recipients { font-family: var(--mono); font-size: .9rem; background: var(--paper); border: 1px solid var(--ink-faint); border-radius: var(--radius); padding: .8rem 1rem; white-space: pre; overflow: auto; max-height: 220px; margin: 0 0 .8rem; }
.copy-row { display: flex; align-items: center; gap: .7rem; flex-wrap: wrap; }
.ident { font-family: var(--mono); font-size: 1.5rem; letter-spacing: .12em; padding: .4rem .8rem; border: 1px solid var(--ink-faint); background: var(--paper); border-radius: var(--radius); }
.hint { font-size: .9rem; color: var(--ink-soft); }
.countdown { font-family: var(--mono); font-size: .9rem; color: var(--ink-soft); display: inline-flex; gap: .5rem; align-items: center; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--ink); animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: .25; } 50% { opacity: 1; } }

/* Results */
.result-head { display: grid; grid-template-columns: auto 1fr; gap: 2rem; align-items: end; margin: 1rem 0 1.4rem; }
.stat-num { font-family: var(--serif); font-size: clamp(2.6rem, 7vw, 4.2rem); line-height: 1; }
.stat-num small { font-size: .45em; color: var(--ink-soft); }
.stat-label { font-size: .85rem; color: var(--ink-soft); font-family: var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.stat-row { display: flex; gap: 1.6rem; flex-wrap: wrap; font-size: .92rem; }
.stat-row b { font-family: var(--serif); font-size: 1.3rem; font-weight: 500; display: block; }
.service-list { list-style: none; margin: 0 0 1.4rem; padding: 0; }
.service-list li { display: grid; grid-template-columns: 160px 1fr 64px; gap: 1rem; align-items: center; padding: .5rem 0; border-bottom: 1px solid var(--ink-hair); font-size: .92rem; }
.meter { height: 6px; background: var(--ink-hair); border-radius: 3px; overflow: hidden; }
.meter i { display: block; height: 100%; background: var(--ink); width: 0; transition: width .6s ease; }
.meter i.warn { background: var(--ochre); }
.meter i.bad { background: var(--rust); }
.pct { font-family: var(--mono); font-size: .85rem; text-align: right; }
.results { width: 100%; border-collapse: collapse; font-size: .92rem; }
.results th { text-align: left; font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-soft); font-weight: 500; padding: .5rem .6rem; border-bottom: 1px solid var(--ink-faint); }
.results td { padding: .6rem .6rem; border-bottom: 1px solid var(--ink-hair); vertical-align: top; }
.results td.email { font-family: var(--mono); font-size: .85rem; word-break: break-all; }
.chip { display: inline-block; padding: .15rem .55rem; border-radius: 2px; font-size: .78rem; font-family: var(--mono); letter-spacing: .05em; border: 1px solid currentColor; white-space: nowrap; }
.chip-inbox { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.chip-spam { color: var(--rust); }
.chip-promotions, .chip-social, .chip-updates, .chip-forums, .chip-other { color: var(--ochre); }
.chip-not_delivered { color: var(--rust); border-style: dashed; }
.chip-error { color: var(--rust); border-style: dotted; }
.chip-pending { color: var(--ink-mute); border-style: dashed; }
.auth { font-family: var(--mono); font-size: .75rem; color: var(--ink-soft); white-space: nowrap; }
.auth b { font-weight: 500; color: var(--ink); }
.auth .fail { color: var(--rust); }
.share-row { display: flex; gap: .8rem; flex-wrap: wrap; align-items: center; margin-top: 1.4rem; padding-top: 1.2rem; border-top: 1px solid var(--ink-faint); }
.share-row input { flex: 1 1 260px; font-family: var(--mono); font-size: .85rem; }

/* Content sections */
.section { padding: 3rem 0 0; }
.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
.cols-3 h3 { margin-top: .6rem; }
.faq details { border-top: 1px solid var(--ink-faint); padding: .9rem 0; }
.faq details:last-child { border-bottom: 1px solid var(--ink-faint); }
.faq summary { cursor: pointer; font-family: var(--serif); font-size: 1.1rem; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--ink-mute); }
.faq details[open] summary::after { content: "–"; }
.faq summary::-webkit-details-marker { display: none; }
.faq p { margin-top: .7rem; color: var(--ink-2); max-width: 70ch; }

/* Blog */
.post-list { list-style: none; padding: 0; margin: 2rem 0; }
.post-list li { padding: 1.6rem 0; border-top: 1px solid var(--ink-faint); display: grid; grid-template-columns: 150px 1fr; gap: 1.5rem; }
.post-list li:last-child { border-bottom: 1px solid var(--ink-faint); }
.post-list time { font-family: var(--mono); font-size: .78rem; color: var(--ink-soft); padding-top: .4rem; }
.post-list h2 { font-size: 1.5rem; margin-bottom: .3rem; }
.post-list h2 a { text-decoration: none; }
.post-list h2 a:hover { text-decoration: underline; }
.article { padding-top: 3rem; }
.article header { margin-bottom: 2rem; }
.article .lead { font-size: 1.15rem; }
.article-body { font-size: 1.06rem; max-width: 68ch; }
.article-body h2 { margin-top: 2.2rem; font-size: 1.6rem; }
.article-body h3 { margin-top: 1.8rem; }
.article-body ul, .article-body ol { padding-left: 1.3rem; }
.article-body li { margin-bottom: .4rem; }
.article-body blockquote { border-left: 2px solid var(--ink); margin: 1.5rem 0; padding: .2rem 0 .2rem 1.2rem; color: var(--ink-2); font-family: var(--serif); font-size: 1.12rem; }
.article-body pre { background: var(--paper-light); border: 1px solid var(--ink-faint); padding: 1rem; overflow: auto; border-radius: var(--radius); font-size: .88rem; }
.article-body img { max-width: 100%; height: auto; }
.article-body figure { margin: 1.8rem 0; }
.article-body figure.image { display: table; max-width: 100%; }
.article-body figure.image img { display: block; }
.article-body figure.image-style-side { float: right; margin: .3rem 0 1rem 1.5rem; max-width: 50%; }
.article-body figure.image-style-align-left { float: left; margin: .3rem 1.5rem 1rem 0; max-width: 50%; }
.article-body figcaption { font-size: .85rem; color: var(--ink-soft); padding: .5rem 0 0; text-align: center; display: table-caption; caption-side: bottom; }
.article-body .image-inline { display: inline-block; vertical-align: middle; }
.article-body figure.table { overflow-x: auto; }
.article-body table { border-collapse: collapse; width: 100%; font-size: .95rem; }
.article-body th, .article-body td { border: 1px solid var(--ink-faint); padding: .5rem .7rem; vertical-align: top; text-align: left; }
.article-body th { background: var(--paper-light); font-weight: 600; }
.article-body hr { margin: 2rem 0; }
.article-body mark { background: rgba(138, 106, 34, .22); color: inherit; }
.article-body .text-tiny { font-size: .7em; } .article-body .text-small { font-size: .85em; } .article-body .text-big { font-size: 1.3em; } .article-body .text-huge { font-size: 1.6em; }
.article-body [style*="text-align: center"], .article-body .align-center { text-align: center; }
.article-body::after { content: ""; display: table; clear: both; }
.article-meta { font-family: var(--mono); font-size: .78rem; color: var(--ink-soft); display: flex; gap: 1.5rem; flex-wrap: wrap; }
.tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 2rem; }
.tags span { font-family: var(--mono); font-size: .74rem; border: 1px solid var(--ink-faint); padding: .15rem .5rem; color: var(--ink-soft); }
.article-foot { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--ink-faint); }

/* About */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; padding-top: 3rem; }
.contact-card { background: var(--paper-light); border: 1px solid var(--ink-faint); padding: 1.6rem; border-radius: var(--radius); }
.dl { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1.2rem; margin: 1rem 0; font-size: .95rem; }
.dl dt { color: var(--ink-soft); }
.dl dd { margin: 0; }

.error-page { padding: 5rem 0; }

/* Consent & legal */
.agree { display: flex; gap: .6rem; align-items: flex-start; font-size: .86rem; color: var(--ink-soft); width: 100%; margin: .4rem 0 0; cursor: pointer; }
.agree input { width: auto; margin-top: .3rem; accent-color: var(--ink); }
.foot-legal { width: 100%; font-size: .82rem; color: var(--ink-soft); }
.cookie-banner { position: fixed; left: 50%; bottom: 1rem; transform: translateX(-50%); width: min(720px, 100% - 32px); background: var(--paper-light); border: 1px solid var(--ink-faint); box-shadow: 0 18px 40px -24px rgba(23, 37, 68, .5); border-radius: var(--radius); padding: 1rem 1.2rem; display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; z-index: 20; font-size: .9rem; }
.cookie-banner p { margin: 0; flex: 1 1 320px; }
.cookie-actions { display: flex; gap: .5rem; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 1.5rem; padding-top: 3rem; }
  .cols-3 { grid-template-columns: 1fr; gap: 1.6rem; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .result-head { grid-template-columns: 1fr; gap: 1rem; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .head-row { flex-wrap: wrap; gap: .6rem 1.2rem; padding: .7rem 0; }
  .site-nav { margin-left: 0; width: 100%; order: 3; gap: 1.1rem; font-size: .92rem; }
  .lang-nav { margin-left: auto; }
  .step { padding-left: 2.8rem; }
  .step::before { width: 1.8rem; height: 1.8rem; font-size: .95rem; }
  .stamp { position: static; display: inline-block; transform: none; margin-bottom: 1rem; }
  .service-list li { grid-template-columns: 1fr 56px; }
  .service-list li .meter { grid-column: 1 / -1; }
  .results thead { display: none; }
  .results tr { display: block; padding: .6rem 0; border-bottom: 1px solid var(--ink-faint); }
  .results td { display: block; border: 0; padding: .15rem 0; }
  .results td[data-l]::before { content: attr(data-l) ": "; font-family: var(--mono); font-size: .72rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .08em; }
  .post-list li { grid-template-columns: 1fr; gap: .3rem; }
}
@media print {
  .site-head, .site-foot, .share-row, .btn { display: none !important; }
  body { background: #fff; color: #000; }
}