:root {
  --accent: #1E3A8A;
  --stripe-a: #DC2626;
  --stripe-b: #1D4ED8;
  --text: #111827;
  --bg: #F3F4F6;
  --muted: #6B7280;
  --border: #9CA3AF;
  --card: #FFFFFF;
  --danger: #B91C1C;
  --max: 1000px;
  --prose: 38rem;
  --radius: 0;
  --font: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "Courier New", Courier, ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: light; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at 100% 0%, rgba(30, 58, 138, 0.06), transparent 40%),
    var(--bg);
  line-height: 1.6;
  font-size: 1.03rem;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: underline; text-underline-offset: 0.15em; }
a:hover { color: #172554; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--stripe-a);
  outline-offset: 3px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 1000;
  background: var(--accent); color: #fff; padding: .5rem .85rem; font-family: var(--font-mono);
}
.skip-link:focus { left: 1rem; top: 1rem; }

.wrap { width: min(100% - 1.75rem, var(--max)); margin-inline: auto; }
.narrow { width: min(100% - 1.75rem, 680px); }
.sr-only, .hp-field {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.airmail {
  border: 10px solid transparent;
  border-image: repeating-linear-gradient(
    135deg,
    var(--stripe-a) 0 10px,
    #fff 10px 20px,
    var(--stripe-b) 20px 30px,
    #fff 30px 40px
  ) 10;
}

.site-header { background: transparent; border: 0; padding-top: 1rem; }
.site-header .wrap.header-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  background: #fff;
  padding: 1rem 1.1rem;
  border: 10px solid transparent;
  border-image: repeating-linear-gradient(
    135deg,
    var(--stripe-a) 0 10px,
    #fff 10px 20px,
    var(--stripe-b) 20px 30px,
    #fff 30px 40px
  ) 10;
}
.brand { text-decoration: none; color: var(--text); }
.brand-name {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 2px solid var(--text);
  padding: .45rem .7rem;
  background:
    linear-gradient(#fff, #fff) padding-box,
    repeating-linear-gradient(90deg, #e5e7eb 0 2px, transparent 2px 6px);
}
.nav-toggle {
  display: inline-flex; border: 2px solid var(--text); background: #fff; color: var(--text);
  border-radius: 0; padding: .4rem .65rem; font: inherit; font-family: var(--font-mono);
  font-size: .75rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700;
}
.site-nav ul { list-style: none; margin: 0; padding: 0; display: none; flex-direction: column; gap: .35rem; }
@media (max-width: 860px) {
  .site-nav {
    position: absolute; left: 1rem; right: 1rem; top: 110px; z-index: 40; display: none;
    background: #fff; border: 2px solid var(--text); padding: .9rem;
  }
  .site-nav.is-open { display: block; }
  .site-nav.is-open ul { display: flex; }
}
@media (min-width: 861px) {
  .nav-toggle { display: none; }
  .site-nav ul {
    display: flex; flex-direction: row; align-items: center; gap: .9rem;
    font-family: var(--font-mono); font-size: .78rem; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 700;
  }
}
.site-nav a, .linkish {
  color: var(--text); text-decoration: none; background: none; border: 0;
  font: inherit; cursor: pointer; padding: 0;
}
.site-nav a:hover, .linkish:hover { color: var(--stripe-a); }
.site-nav a.is-active { border-bottom: 3px solid var(--stripe-b); }
.inline-form { display: inline; }

.hero {
  margin: 1.25rem auto 0; width: min(100% - 1.75rem, var(--max));
  background: #fff;
  border: 10px solid transparent;
  border-image: repeating-linear-gradient(
    -45deg,
    var(--stripe-a) 0 10px,
    #fff 10px 20px,
    var(--stripe-b) 20px 30px,
    #fff 30px 40px
  ) 10;
  position: relative;
}
.hero-img {
  width: 100%; height: clamp(190px, 30vw, 320px); object-fit: cover;
  filter: grayscale(0.15) contrast(1.05);
}
.hero-copy {
  padding: 1.1rem 1.15rem 1.2rem;
  background: #fff;
  border-top: 2px dashed var(--border);
  color: var(--text);
}
.hero-brand {
  margin: 0 0 .35rem;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3.5vw, 2rem);
  letter-spacing: 0.12em; text-transform: uppercase; font-weight: 700; line-height: 1.15;
}
.hero-brand::before {
  content: "DO: ";
  color: var(--muted); font-weight: 700;
}
.hero-tagline {
  margin: 0; max-width: 40rem; color: var(--muted);
  font-family: var(--font-mono); font-size: .9rem;
}

.site-main { padding: 1.7rem 0 3.1rem; }
.layout-home { display: grid; gap: 1.5rem; }
@media (min-width: 900px) {
  .layout-home { grid-template-columns: minmax(0, 1fr) 240px; gap: 1.6rem; }
}

.section-title, h1 {
  margin: 0 0 .95rem;
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700; line-height: 1.2;
}
.lead { color: var(--muted); font-family: var(--font-mono); font-size: .92rem; }
.empty {
  padding: 1rem; background: #fff; border: 2px dashed var(--border);
  font-family: var(--font-mono); color: var(--muted); font-size: .9rem;
}

.home-tools { display: grid; gap: 1rem; margin-bottom: 1.2rem; }
@media (min-width: 700px) {
  .home-tools { grid-template-columns: 1.25fr .85fr; }
}
.home-tools > div {
  background: #fff; border: 2px solid var(--text); padding: .9rem;
}
.home-tools h2 {
  margin: 0 0 .45rem; font-family: var(--font-mono); font-size: .7rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--stripe-a); font-weight: 700;
}
.search-inline {
  display: grid; grid-template-columns: 1fr auto; border: 2px solid var(--text);
}
.search-inline input { border: 0; border-radius: 0; font-family: var(--font-mono); }
.search-inline .btn { border: 0; border-left: 2px solid var(--text); border-radius: 0; box-shadow: none; }

.article-list { display: grid; gap: 1.15rem; }
.article-card {
  display: grid; gap: 0; background: #fff;
  border: 2px solid var(--text);
  position: relative;
}
.article-card::before {
  content: "PAR AVION";
  position: absolute; top: .65rem; right: .65rem; z-index: 2;
  font-family: var(--font-mono); font-size: .62rem; letter-spacing: 0.12em;
  color: var(--stripe-a); border: 1px solid var(--stripe-a); padding: .15rem .35rem;
  background: rgba(255,255,255,.92); transform: rotate(3deg);
}
@media (min-width: 720px) {
  .article-card { grid-template-columns: 200px minmax(0,1fr); }
}
.card-cover { border-right: 0; border-bottom: 2px solid var(--text); }
@media (min-width: 720px) {
  .card-cover { border-bottom: 0; border-right: 2px solid var(--text); }
}
.card-cover img { width: 100%; height: 100%; min-height: 150px; object-fit: cover; filter: contrast(1.04); }
.card-body { padding: 1rem 1.05rem 1.1rem; }
.card-title {
  margin: 0 0 .4rem; font-size: 1.2rem; line-height: 1.2; letter-spacing: 0.02em;
  text-transform: uppercase; font-weight: 800; max-width: 88%;
}
.card-title a { color: inherit; text-decoration: none; }
.card-title a:hover { color: var(--stripe-b); }
.card-excerpt { margin: 0 0 .7rem; color: var(--muted); }
.meta {
  display: flex; flex-wrap: wrap; gap: .3rem .75rem; margin-bottom: .8rem;
  color: var(--muted); font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: 0.05em; text-transform: uppercase;
}
.cats a {
  display: inline-block; margin: 0 .25rem .25rem 0; padding: .2rem .45rem;
  border: 1px dashed var(--accent); color: var(--accent); text-decoration: none;
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: 0.08em; text-transform: uppercase;
}

.side-block {
  background: #fff; border: 2px solid var(--text); padding: 1rem; margin: 0 0 .9rem;
  position: relative;
}
.side-block::after {
  content: ""; position: absolute; inset: 6px; border: 1px dashed var(--border); pointer-events: none;
}
.side-block > * { position: relative; z-index: 1; }
.side-block h2 {
  margin: 0 0 .55rem; font-family: var(--font-mono); font-size: .68rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--stripe-b); font-weight: 700;
}
.author-thumb, .avatar {
  border-radius: 0; object-fit: cover; border: 2px solid var(--text);
}
.avatar.lg { width: 120px; height: 120px; }
.cat-list, .social-list, .footer-links { list-style: none; padding: 0; margin: 0; }
.cat-list li, .footer-links li, .social-list li { margin: .4rem 0; font-family: var(--font-mono); font-size: .85rem; }

.btn, button.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .3rem;
  background: var(--accent); color: #fff; border: 2px solid var(--text);
  border-radius: 0; padding: .55rem .9rem;
  font: inherit; font-family: var(--font-mono); font-weight: 700; text-decoration: none; cursor: pointer;
  letter-spacing: 0.08em; text-transform: uppercase; font-size: .72rem;
}
.btn:hover { background: #172554; color: #fff; }
.btn-small { padding: .4rem .7rem; font-size: .68rem; }
.btn-secondary { background: #fff; color: var(--text); }
.btn-secondary:hover { background: #F9FAFB; color: var(--text); }
.btn-ghost { background: transparent; color: var(--text); border-color: transparent; letter-spacing: 0.04em; }
.btn.danger, .danger { color: var(--danger); }
button.btn.danger { background: var(--danger); color: #fff; }

.form label, .stack > label {
  display: grid; gap: .28rem; margin-bottom: .1rem;
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700;
}
.stack { display: grid; gap: .85rem; }
input, textarea, select {
  width: 100%; border: 2px solid var(--text); border-radius: 0; padding: .65rem .75rem;
  background: #fff; color: var(--text); font: inherit; font-weight: 400; text-transform: none; letter-spacing: 0;
}
.check {
  display: flex !important; align-items: flex-start; gap: .55rem;
  font-family: var(--font); font-size: .95rem; letter-spacing: 0; text-transform: none; font-weight: 400;
}
.check input { width: auto; margin-top: .2rem; }
fieldset { border: 2px solid var(--border); padding: 1rem; }

.flash {
  padding: .85rem 1rem; margin: .75rem 0; background: #fff;
  border: 2px solid var(--text); font-family: var(--font-mono); font-size: .85rem;
}
.flash-success { border-color: #15803D; }
.flash-error { border-color: var(--danger); }
.flashes { margin-top: 1rem; }

.article-page { width: min(100% - 1.75rem, var(--prose)); }
.article-header { margin-bottom: 1.15rem; padding-bottom: .85rem; border-bottom: 2px dashed var(--border); }
.article-header h1 { letter-spacing: 0.06em; }
.breadcrumbs { font-family: var(--font-mono); font-size: .72rem; color: var(--muted); margin-bottom: .8rem; letter-spacing: 0.08em; text-transform: uppercase; }
.prose { font-size: 1.08rem; }
.prose h2, .prose h3 { font-family: var(--font-mono); letter-spacing: 0.05em; text-transform: uppercase; line-height: 1.2; font-size: 1.05rem; }
.prose img { margin: 1rem 0; border: 2px solid var(--text); }
.prose blockquote {
  margin: 1rem 0; padding: .85rem 1rem; border-left: 4px solid var(--stripe-a);
  background: #FEF2F2; color: var(--muted); font-family: var(--font-mono); font-size: .92rem;
}
.article-cover { margin: 0 0 1.15rem; border: 2px solid var(--text); }
.author-box, .newsletter-box {
  display: grid; gap: 1rem; grid-template-columns: auto 1fr; align-items: start;
  background: #fff; border: 2px solid var(--text); padding: 1rem; margin: 1.8rem 0;
}
.newsletter-box { grid-template-columns: 1fr; }
.comments { margin-top: 2rem; }
.comment-list, .comment-replies { list-style: none; padding: 0; margin: 0; }
.comment { border-top: 1px dashed var(--border); padding: 1rem 0; }
.comment-replies { margin-left: .7rem; padding-left: .85rem; border-left: 3px solid var(--stripe-b); }
.comment-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: .5rem; }

.video-embed { margin: 1.15rem 0; border: 2px solid var(--text); }
.video-frame { position: relative; aspect-ratio: 16/9; background: #000; overflow: hidden; }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-placeholder { padding: 1.05rem; background: #fff; }
.video-placeholder img { margin: 0 0 1rem; max-width: 180px; }
.muted-note { color: var(--muted); font-family: var(--font-mono); font-size: .82rem; margin: .35rem 0 1rem; }

.pagination ul { display: flex; flex-wrap: wrap; gap: .35rem; list-style: none; padding: 0; margin: 1.25rem 0 0; }
.pagination a, .pagination .is-current {
  display: inline-flex; min-width: 2.2rem; justify-content: center; padding: .35rem .5rem;
  border: 2px solid var(--text); background: #fff; color: var(--text);
  text-decoration: none; font-family: var(--font-mono); font-weight: 700; font-size: .8rem;
}
.pagination .is-current { background: var(--accent); color: #fff; }

.site-footer {
  border-top: 0; padding: 0 0 2.3rem; margin-top: .5rem; background: transparent;
}
.site-footer .wrap {
  background: #fff;
  border: 10px solid transparent;
  border-image: repeating-linear-gradient(
    45deg,
    var(--stripe-a) 0 10px,
    #fff 10px 20px,
    var(--stripe-b) 20px 30px,
    #fff 30px 40px
  ) 10;
  padding: 1.4rem 1.2rem 1.5rem;
}
.footer-grid { display: grid; gap: 1.3rem; }
@media (min-width: 700px) { .footer-grid { grid-template-columns: 1.25fr 1fr; } }
.footer-brand {
  margin: 0 0 .35rem; font-family: var(--font-mono); letter-spacing: 0.1em;
  text-transform: uppercase; font-weight: 700;
}
.copyright {
  margin-top: 1.1rem; color: var(--muted); font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: 0.08em; text-transform: uppercase;
}

.table-wrap { overflow-x: auto; border: 2px solid var(--text); background: #fff; }
table { width: 100%; border-collapse: collapse; }
th, td { border: 1px solid var(--border); padding: .55rem .65rem; text-align: left; vertical-align: top; }
.install-wrap { max-width: 760px; padding: 2rem 0 3rem; }
.profile-head { display: flex; gap: 1rem; align-items: center; margin-bottom: 1.5rem; }
.danger-zone { margin-top: 2rem; padding-top: 1rem; border-top: 2px dashed var(--border); }