:root {
  --accent: #0369A1;
  --cyan: #22D3EE;
  --ink: #0C4A6E;
  --text: #0C4A6E;
  --bg: #E8EEF4;
  --muted: #64748B;
  --border: #7DD3FC;
  --card: #F8FBFF;
  --danger: #BE123C;
  --max: 1040px;
  --prose: 40rem;
  --radius: 0;
  --font: "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Menlo", "Consolas", "Courier New", monospace;
  --grid: rgba(3, 105, 161, 0.09);
}

*, *::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-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
  line-height: 1.65;
  font-size: 1.02rem;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: #0C4A6E; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--cyan); 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); font-size: .8rem;
}
.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;
}

.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: var(--card);
  padding: .95rem 1.1rem;
  border: 1px solid var(--accent);
  box-shadow: inset 0 0 0 4px rgba(34, 211, 238, 0.18);
  position: relative;
}
.site-header .wrap.header-bar::before,
.site-header .wrap.header-bar::after {
  content: ""; position: absolute; width: 14px; height: 14px;
  border: 1.5px solid var(--accent); pointer-events: none;
}
.site-header .wrap.header-bar::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.site-header .wrap.header-bar::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.brand { text-decoration: none; color: var(--text); }
.brand-name {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 2vw, 1.1rem);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}
.brand-name::before {
  content: "DWG · ";
  color: var(--accent); font-weight: 600; opacity: .75;
}

.nav-toggle {
  display: inline-flex; border: 1px solid var(--accent); background: var(--card); color: var(--ink);
  border-radius: 0; padding: .4rem .65rem; font: inherit; font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: 0.1em; 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: 100px; z-index: 40; display: none;
    background: var(--card); border: 1px solid var(--accent); padding: .9rem;
    box-shadow: inset 0 0 0 3px rgba(34, 211, 238, 0.15);
  }
  .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: 1rem;
    font-family: var(--font-mono); font-size: .72rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600;
  }
}
.site-nav a, .linkish {
  color: var(--ink); text-decoration: none; background: none; border: 0;
  font: inherit; cursor: pointer; padding: 0;
}
.site-nav a:hover, .linkish:hover { color: var(--accent); }
.site-nav a.is-active { color: var(--accent); border-bottom: 2px solid var(--cyan); }

.inline-form { display: inline; }

.hero {
  margin: 1.15rem auto 0; width: min(100% - 1.75rem, var(--max));
  background: var(--card);
  border: 1px solid var(--accent);
  position: relative;
  box-shadow: inset 0 0 0 5px rgba(34, 211, 238, 0.12);
}
.hero::before, .hero::after {
  content: "+"; position: absolute; z-index: 2; color: var(--accent);
  font-family: var(--font-mono); font-size: .9rem; line-height: 1; font-weight: 700;
}
.hero::before { top: 6px; left: 8px; }
.hero::after { bottom: 6px; right: 8px; }
.hero-img {
  width: 100%; height: clamp(180px, 28vw, 300px); object-fit: cover;
  filter: grayscale(0.35) contrast(1.1) brightness(1.05);
  mix-blend-mode: multiply;
  opacity: .92;
}
.hero-copy {
  padding: 1rem 1.15rem 1.15rem;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, #F0F9FF, var(--card));
  color: var(--text);
}
.hero-brand {
  margin: 0 0 .35rem;
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 3vw, 1.75rem);
  letter-spacing: 0.14em; text-transform: uppercase; font-weight: 700; line-height: 1.15;
  color: var(--ink);
}
.hero-tagline {
  margin: 0; max-width: 42rem; color: var(--muted);
  font-family: var(--font-mono); font-size: .8rem; letter-spacing: 0.04em;
}

.site-main { padding: 1.6rem 0 3rem; }
.layout-home { display: grid; gap: 1.4rem; }
@media (min-width: 900px) {
  .layout-home { grid-template-columns: minmax(0, 1fr) 230px; gap: 1.5rem; }
}

.section-title, h1 {
  margin: 0 0 .9rem;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  letter-spacing: 0.12em; text-transform: uppercase; font-weight: 700; line-height: 1.2;
  color: var(--ink);
}
.lead { color: var(--muted); font-family: var(--font-mono); font-size: .85rem; }
.empty {
  padding: 1rem; background: var(--card); border: 1px dashed var(--accent);
  font-family: var(--font-mono); color: var(--muted); font-size: .85rem;
}

.home-tools { display: grid; gap: .9rem; margin-bottom: 1.15rem; }
@media (min-width: 700px) {
  .home-tools { grid-template-columns: 1.3fr .8fr; }
}
.home-tools > div {
  background: var(--card); border: 1px solid var(--accent); padding: .85rem;
  box-shadow: inset 0 0 0 3px rgba(34, 211, 238, 0.1);
}
.home-tools h2 {
  margin: 0 0 .4rem; font-family: var(--font-mono); font-size: .65rem;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); font-weight: 700;
}
.search-inline {
  display: grid; grid-template-columns: 1fr auto; border: 1px solid var(--accent);
}
.search-inline input { border: 0; border-radius: 0; background: #fff; font-family: var(--font-mono); font-size: .85rem; }
.search-inline .btn { border: 0; border-left: 1px solid var(--accent); border-radius: 0; box-shadow: none; }

.article-list { display: grid; gap: 1.05rem; }
.article-card {
  display: grid; gap: 0; background: var(--card);
  border: 1px solid var(--accent);
  position: relative;
}
.article-card::before {
  content: "";
  position: absolute; inset: 5px; border: 1px solid rgba(34, 211, 238, 0.45);
  pointer-events: none; z-index: 1;
}
.article-card::after {
  content: "SHEET";
  position: absolute; top: 10px; right: 12px; z-index: 2;
  font-family: var(--font-mono); font-size: .58rem; letter-spacing: 0.14em;
  color: var(--accent); background: var(--card); padding: 0 .2rem;
}
@media (min-width: 720px) {
  .article-card { grid-template-columns: 190px minmax(0,1fr); }
}
.card-cover { border-bottom: 1px solid var(--border); position: relative; z-index: 0; }
@media (min-width: 720px) {
  .card-cover { border-bottom: 0; border-right: 1px solid var(--border); }
}
.card-cover img {
  width: 100%; height: 100%; min-height: 140px; object-fit: cover;
  filter: grayscale(0.4) contrast(1.08); opacity: .9;
}
.card-body { padding: 1rem 1.05rem 1.05rem; position: relative; z-index: 2; }
.card-title {
  margin: 0 0 .35rem; font-size: 1.12rem; line-height: 1.25; letter-spacing: 0.03em;
  text-transform: uppercase; font-weight: 800; max-width: 92%; color: var(--ink);
}
.card-title a { color: inherit; text-decoration: none; }
.card-title a:hover { color: var(--accent); }
.card-excerpt { margin: 0 0 .65rem; color: var(--muted); font-size: .95rem; }
.meta {
  display: flex; flex-wrap: wrap; gap: .25rem .7rem; margin-bottom: .7rem;
  color: var(--muted); font-family: var(--font-mono); font-size: .68rem;
  letter-spacing: 0.06em; text-transform: uppercase;
}
.cats a {
  display: inline-block; margin: 0 .25rem .25rem 0; padding: .15rem .4rem;
  border: 1px solid var(--accent); color: var(--accent); text-decoration: none;
  font-family: var(--font-mono); font-size: .62rem; letter-spacing: 0.1em; text-transform: uppercase;
  background: rgba(34, 211, 238, 0.08);
}

.side-block {
  background: var(--card); border: 1px solid var(--accent); padding: .95rem; margin: 0 0 .85rem;
  position: relative;
}
.side-block::before {
  content: ""; position: absolute; top: 4px; left: 4px; right: 4px; bottom: 4px;
  border: 1px dashed rgba(3, 105, 161, 0.35); pointer-events: none;
}
.side-block > * { position: relative; z-index: 1; }
.side-block h2 {
  margin: 0 0 .5rem; font-family: var(--font-mono); font-size: .62rem;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); font-weight: 700;
}
.author-thumb, .avatar {
  border-radius: 0; object-fit: cover; border: 1px solid var(--accent);
}
.avatar.lg { width: 112px; height: 112px; }
.cat-list, .social-list, .footer-links { list-style: none; padding: 0; margin: 0; }
.cat-list li, .footer-links li, .social-list li {
  margin: .35rem 0; font-family: var(--font-mono); font-size: .8rem;
}

.btn, button.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .3rem;
  background: var(--accent); color: #fff; border: 1px solid #0C4A6E;
  border-radius: 0; padding: .52rem .85rem;
  font: inherit; font-family: var(--font-mono); font-weight: 700; text-decoration: none; cursor: pointer;
  letter-spacing: 0.1em; text-transform: uppercase; font-size: .68rem;
}
.btn:hover { background: #0C4A6E; color: #fff; }
.btn-small { padding: .35rem .65rem; font-size: .62rem; }
.btn-secondary { background: var(--card); color: var(--ink); }
.btn-secondary:hover { background: #E0F2FE; color: var(--ink); }
.btn-ghost { background: transparent; color: var(--ink); border-color: transparent; letter-spacing: 0.06em; }
.btn.danger, .danger { color: var(--danger); }
button.btn.danger { background: var(--danger); color: #fff; border-color: #9F1239; }

.form label, .stack > label {
  display: grid; gap: .25rem; margin-bottom: .1rem;
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700;
}
.stack { display: grid; gap: .8rem; }
input, textarea, select {
  width: 100%; border: 1px solid var(--accent); border-radius: 0; padding: .6rem .7rem;
  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: 1px solid var(--border); padding: 1rem; }

.flash {
  padding: .8rem 1rem; margin: .7rem 0; background: var(--card);
  border: 1px solid var(--accent); font-family: var(--font-mono); font-size: .8rem;
}
.flash-success { border-color: #0F766E; background: #F0FDFA; }
.flash-error { border-color: var(--danger); background: #FFF1F2; }
.flashes { margin-top: 1rem; }

.article-page { width: min(100% - 1.75rem, var(--prose)); }
.article-header { margin-bottom: 1.1rem; padding-bottom: .8rem; border-bottom: 1px solid var(--border); }
.breadcrumbs {
  font-family: var(--font-mono); font-size: .68rem; color: var(--muted);
  margin-bottom: .75rem; letter-spacing: 0.08em; text-transform: uppercase;
}
.prose { font-size: 1.06rem; }
.prose h2, .prose h3 {
  font-family: var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase;
  line-height: 1.2; font-size: 1rem; color: var(--ink);
}
.prose img { margin: 1rem 0; border: 1px solid var(--accent); }
.prose blockquote {
  margin: 1rem 0; padding: .8rem 1rem; border-left: 3px solid var(--cyan);
  background: #F0F9FF; color: var(--muted); font-family: var(--font-mono); font-size: .88rem;
}
.article-cover { margin: 0 0 1.1rem; border: 1px solid var(--accent); }
.author-box, .newsletter-box {
  display: grid; gap: 1rem; grid-template-columns: auto 1fr; align-items: start;
  background: var(--card); border: 1px solid var(--accent); padding: 1rem; margin: 1.7rem 0;
  box-shadow: inset 0 0 0 3px rgba(34, 211, 238, 0.1);
}
.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: .65rem; padding-left: .8rem; border-left: 2px solid var(--cyan); }
.comment-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: .45rem; }

.video-embed { margin: 1.1rem 0; border: 1px solid var(--accent); }
.video-frame { position: relative; aspect-ratio: 16/9; background: #0C4A6E; overflow: hidden; }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-placeholder { padding: 1rem; background: var(--card); }
.video-placeholder img { margin: 0 0 1rem; max-width: 180px; }
.muted-note { color: var(--muted); font-family: var(--font-mono); font-size: .78rem; margin: .3rem 0 1rem; }

.pagination ul { display: flex; flex-wrap: wrap; gap: .3rem; list-style: none; padding: 0; margin: 1.2rem 0 0; }
.pagination a, .pagination .is-current {
  display: inline-flex; min-width: 2.1rem; justify-content: center; padding: .3rem .45rem;
  border: 1px solid var(--accent); background: var(--card); color: var(--ink);
  text-decoration: none; font-family: var(--font-mono); font-weight: 700; font-size: .75rem;
}
.pagination .is-current { background: var(--accent); color: #fff; }

.site-footer { border-top: 0; padding: 0 0 2.2rem; margin-top: .4rem; background: transparent; }
.site-footer .wrap {
  background: var(--card);
  border: 1px solid var(--accent);
  padding: 1.3rem 1.15rem 1.4rem;
  box-shadow: inset 0 0 0 4px rgba(34, 211, 238, 0.12);
  position: relative;
}
.site-footer .wrap::before {
  content: "TITLE BLOCK";
  position: absolute; top: -0.55rem; left: 1rem;
  font-family: var(--font-mono); font-size: .58rem; letter-spacing: 0.14em;
  color: var(--accent); background: var(--bg); padding: 0 .35rem;
}
.footer-grid { display: grid; gap: 1.2rem; }
@media (min-width: 700px) { .footer-grid { grid-template-columns: 1.25fr 1fr; } }
.footer-brand {
  margin: 0 0 .3rem; font-family: var(--font-mono); letter-spacing: 0.12em;
  text-transform: uppercase; font-weight: 700;
}
.copyright {
  margin-top: 1rem; color: var(--muted); font-family: var(--font-mono);
  font-size: .68rem; letter-spacing: 0.08em; text-transform: uppercase;
}

.table-wrap { overflow-x: auto; border: 1px solid var(--accent); background: var(--card); }
table { width: 100%; border-collapse: collapse; }
th, td { border: 1px solid var(--border); padding: .5rem .6rem; 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: 1px dashed var(--border); }