/* EthanH — dark, security-research aesthetic (hacktron-inspired). Hand-written,
   no build step. Self-hosted Inter + JetBrains Mono with system fallbacks. */
@font-face{
  font-family:"Inter";font-style:normal;font-display:swap;font-weight:100 900;
  src:url("/fonts/inter-var.woff2") format("woff2");
}
@font-face{
  font-family:"JetBrains Mono";font-style:normal;font-display:swap;font-weight:100 800;
  src:url("/fonts/jetbrains-mono-var.woff2") format("woff2");
}
:root{
  --bg:#08090b; --bg2:#0d0f12; --panel:#121419; --panel2:#171a20;
  --border:#23262e; --border2:#30343d;
  --text:#e8eaed; --muted:#a2a8b2; --dim:#6b7280;
  --accent:#22d3ee; --accent2:#34d399; --accentdeep:#0b3b45;
  --glow:0 0 40px rgba(34,211,238,.18);
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --maxw:1080px; --readw:720px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);
  font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 500px at 80% -10%,rgba(34,211,238,.07),transparent 60%),
                   radial-gradient(700px 500px at 0% 0%,rgba(52,211,153,.05),transparent 55%);
  background-attachment:fixed;}
a{color:var(--accent);text-decoration:none}
a:hover{color:#67e8f9}
img{max-width:100%;height:auto;border-radius:10px}
code,kbd,pre{font-family:var(--mono)}
::selection{background:rgba(34,211,238,.25)}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.narrow{max-width:var(--readw)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(140%) blur(10px);background:rgba(8,9,11,.72);
  border-bottom:1px solid var(--border)}
.site-header .bar{display:flex;align-items:center;gap:18px;height:62px;
  max-width:var(--maxw);margin:0 auto;padding:0 22px}
.logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:16px;letter-spacing:.2px;color:var(--text)}
.logo:hover{color:var(--text)}
.logo .mark{width:30px;height:30px;border-radius:8px;object-fit:cover;
  box-shadow:0 0 0 1px var(--border2),var(--glow)}
.logo .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
nav.menu{margin-left:auto;display:flex;gap:6px;align-items:center;flex-wrap:wrap}
nav.menu a{color:var(--muted);font-size:14.5px;font-weight:500;padding:7px 12px;border-radius:8px}
nav.menu a:hover{color:var(--text);background:var(--panel)}
nav.menu a.active{color:var(--accent)}
.tag-mini{font-family:var(--mono);font-size:11px;color:var(--accent);border:1px solid var(--accentdeep);
  background:rgba(34,211,238,.06);padding:3px 8px;border-radius:999px;margin-left:4px}

/* ---------- hero ---------- */
.hero{padding:80px 0 54px;position:relative}
.hero .eyebrow{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.5px;
  display:inline-flex;align-items:center;gap:9px;border:1px solid var(--border2);
  background:var(--panel);padding:6px 13px;border-radius:999px;margin-bottom:22px}
.hero .eyebrow .pulse{width:8px;height:8px;border-radius:50%;background:var(--accent2);
  box-shadow:0 0 0 0 rgba(52,211,153,.6);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(52,211,153,.5)}70%{box-shadow:0 0 0 10px rgba(52,211,153,0)}100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}}
.hero h1{font-size:clamp(34px,6vw,60px);line-height:1.05;letter-spacing:-1.4px;margin:0 0 18px;font-weight:800}
.hero h1 .grad{background:linear-gradient(110deg,#e8eaed 10%,#22d3ee 55%,#34d399 95%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p.lead{font-size:19px;color:var(--muted);max-width:640px;margin:0 0 26px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:10px;font-weight:600;
  font-size:14.5px;border:1px solid var(--border2);background:var(--panel);color:var(--text);cursor:pointer}
.btn:hover{border-color:var(--accent);color:var(--text)}
.btn.primary{background:linear-gradient(180deg,#22d3ee,#0ea5b7);color:#05222a;border-color:transparent;box-shadow:var(--glow)}
.btn.primary:hover{filter:brightness(1.07)}

/* section heading */
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  margin:46px 0 22px;border-top:1px solid var(--border);padding-top:30px}
.sec-head h2{font-size:14px;text-transform:uppercase;letter-spacing:1.4px;color:var(--muted);margin:0;font-weight:600}
.sec-head h2 .hash{color:var(--accent);font-family:var(--mono)}

/* ---------- post list ---------- */
.posts{display:grid;gap:16px}
.post-card{display:block;background:var(--panel);border:1px solid var(--border);border-radius:14px;
  padding:24px 26px;transition:border-color .15s,transform .15s,box-shadow .15s}
.post-card:hover{border-color:var(--border2);transform:translateY(-2px);box-shadow:0 12px 40px rgba(0,0,0,.35)}
.post-card .meta{font-family:var(--mono);font-size:12.5px;color:var(--dim);display:flex;gap:14px;flex-wrap:wrap;margin-bottom:10px}
.post-card h3{margin:0 0 10px;font-size:23px;line-height:1.25;letter-spacing:-.4px;color:var(--text)}
.post-card:hover h3{color:#fff}
.post-card p{margin:0 0 14px;color:var(--muted);font-size:15.5px}
.pills{display:flex;gap:7px;flex-wrap:wrap}
.pill{font-size:11.5px;font-family:var(--mono);color:var(--accent);border:1px solid var(--accentdeep);
  background:rgba(34,211,238,.06);padding:3px 9px;border-radius:999px}
.pill.cat{color:var(--accent2);border-color:#13402f;background:rgba(52,211,153,.06)}

/* ---------- article ---------- */
article.post{padding:44px 0 20px}
.post-hero h1{font-size:clamp(28px,5vw,44px);line-height:1.12;letter-spacing:-1px;margin:0 0 14px;font-weight:800}
.post-hero .meta{font-family:var(--mono);font-size:13px;color:var(--dim);display:flex;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.prose{font-size:17.5px;color:#dfe2e6}
.prose h2{font-size:27px;margin:42px 0 14px;letter-spacing:-.5px;padding-top:8px}
.prose h3{font-size:21px;margin:30px 0 10px}
.prose h2,.prose h3,.prose h4{color:#fff;line-height:1.25}
.prose p{margin:18px 0}
.prose a{text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--accentdeep)}
.prose ul,.prose ol{padding-left:24px}
.prose li{margin:7px 0}
.prose blockquote{margin:22px 0;padding:6px 20px;border-left:3px solid var(--accent);
  background:var(--panel);border-radius:0 10px 10px 0;color:var(--muted)}
.prose img{border:1px solid var(--border);margin:22px 0}
.prose hr{border:none;border-top:1px solid var(--border);margin:36px 0}
.prose code{background:var(--panel2);border:1px solid var(--border);padding:.12em .4em;border-radius:6px;font-size:.86em}
.prose pre{background:#0b0d11;border:1px solid var(--border);border-radius:12px;padding:18px 20px;
  overflow:auto;margin:22px 0;font-size:14px;line-height:1.6}
.prose pre code{background:none;border:none;padding:0;font-size:inherit}
.prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.prose th,.prose td{border:1px solid var(--border);padding:8px 12px;text-align:left}
.prose th{background:var(--panel)}

/* table of small post meta tags */
.post-tags{display:flex;gap:8px;flex-wrap:wrap;margin:30px 0}

/* prev/next */
.pn{display:flex;justify-content:space-between;gap:14px;margin:40px 0 0;border-top:1px solid var(--border);padding-top:22px}
.pn a{flex:1;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:14px 16px;color:var(--muted)}
.pn a:hover{border-color:var(--border2);color:var(--text)}
.pn .lbl{font-family:var(--mono);font-size:11px;color:var(--dim);display:block;margin-bottom:4px}

/* pagination */
.pager{display:flex;gap:8px;justify-content:center;align-items:center;margin:36px 0}
.pager a,.pager span{padding:8px 14px;border:1px solid var(--border);border-radius:9px;color:var(--muted);font-size:14px;font-family:var(--mono)}
.pager a:hover{border-color:var(--accent);color:var(--text)}
.pager .cur{background:var(--accentdeep);color:var(--accent);border-color:var(--accentdeep)}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--border);margin-top:70px;padding:34px 0 50px;color:var(--dim);font-size:14px}
.site-footer .bar{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center}
.site-footer a{color:var(--muted)}
.site-footer .mono{font-family:var(--mono);font-size:12.5px;color:var(--dim)}

/* page intro (list/taxonomy) */
.page-intro{padding:54px 0 6px}
.page-intro h1{font-size:clamp(28px,5vw,42px);letter-spacing:-1px;margin:0 0 8px}
.page-intro p{color:var(--muted);margin:0}

/* about / single pages without hero meta */
.simple-page{padding:40px 0}

@media(max-width:640px){
  body{font-size:16px}
  .hero{padding:54px 0 36px}
  nav.menu a{padding:6px 9px}
  .post-card{padding:20px}
}