:root {
  --bg: #0b0e14;
  --text: #e6e6e6;
  --muted: #9aa5b1;
  --card: #11151f;
  --border: #1b2230;
  --accent: #6ee7b7; /* neon green */
  --accent-2: #3b82f6; /* neon blue */
  --neon-cyan: #22d3ee;
  --neon-purple: #a78bfa;
}

[data-theme="light"] {
  --bg: #f8fafc;
  --text: #0f172a;
  --muted: #445164;
  --card: #ffffff;
  --border: #e5e7eb;
  --accent: #0ea5e9;
  --accent-2: #16a34a;
}

html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.65;
}

/* subtle hacker-ish grid + scanlines */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1200px 600px at 80% -10%, color-mix(in oklab, var(--neon-purple) 12%, transparent), transparent 60%),
    radial-gradient(900px 600px at -10% 80%, color-mix(in oklab, var(--neon-cyan) 10%, transparent), transparent 70%),
    linear-gradient(to right, color-mix(in oklab, var(--accent) 8%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklab, var(--accent-2) 6%, transparent) 1px, transparent 1px);
  background-size:
    auto,
    auto,
    24px 24px,
    24px 24px;
  mix-blend-mode: screen;
  opacity: 0.18;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.025) 0px,
    rgba(255,255,255,0.025) 1px,
    transparent 2px,
    transparent 4px
  );
  animation: scan 8s linear infinite;
  opacity: 0.07;
  z-index: 0;
}

@keyframes scan {
  0% { transform: translateY(-10%); }
  100% { transform: translateY(10%); }
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0; backdrop-filter: saturate(180%) blur(10px);
  background: color-mix(in oklab, var(--bg) 92%, transparent);
  z-index: 10;
}

.nav { display: flex; align-items: center; justify-content: space-between; height: 60px; position: relative; z-index: 1; }
.brand { color: var(--text); text-decoration: none; font-weight: 800; letter-spacing: 0.5px; text-transform: uppercase; text-shadow: 0 0 10px color-mix(in oklab, var(--accent) 40%, transparent), 0 0 22px color-mix(in oklab, var(--accent-2) 30%, transparent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; }
nav a[aria-current="page"], nav a:hover { color: var(--text); }
.btn-ghost { background: rgba(255,255,255,0.02); border: 1px solid var(--border); color: var(--muted); padding: 6px 10px; border-radius: 8px; margin-left: 14px; cursor: pointer; box-shadow: inset 0 0 12px rgba(0,0,0,0.25); }
.btn-ghost:hover { border-color: color-mix(in oklab, var(--accent) 40%, var(--border)); color: var(--text); box-shadow: 0 0 16px color-mix(in oklab, var(--accent) 25%, transparent); }

.site-footer { border-top: 1px solid var(--border); margin-top: 40px; }
.site-footer .container { display: flex; align-items: center; gap: 8px; height: 70px; color: var(--muted); }
.dot { opacity: .6; }

.hero { padding: 32px 0 12px; position: relative; z-index: 1; }
.hero h1 { margin: 10px 0 6px; font-size: 36px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; letter-spacing: 0.5px; background: linear-gradient(90deg, var(--text), color-mix(in oklab, var(--neon-cyan) 55%, var(--text)), var(--text)); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 18px color-mix(in oklab, var(--neon-cyan) 20%, transparent)); }
.caret { display: inline-block; width: 10px; margin-left: 6px; background: currentColor; height: 1em; transform: translateY(2px); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero p { margin: 0; color: var(--muted); }

.section-heading { display: flex; align-items: center; justify-content: space-between; margin-top: 26px; }
.see-all { color: var(--accent); text-decoration: none; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 14px; }
.card { position: relative; border: 1px solid var(--border); background: var(--card); border-radius: 12px; overflow: hidden; transition: border-color .2s ease, transform .05s ease; }
.card::before { content: ""; position: absolute; inset: -1px; border-radius: 12px; padding: 1px; background: conic-gradient(from 180deg at 50% 50%, color-mix(in oklab, var(--accent) 55%, transparent), color-mix(in oklab, var(--accent-2) 55%, transparent), color-mix(in oklab, var(--neon-purple) 55%, transparent), color-mix(in oklab, var(--neon-cyan) 55%, transparent), color-mix(in oklab, var(--accent) 55%, transparent)); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: .25; pointer-events: none; }
.card:hover { border-color: color-mix(in oklab, var(--accent) 35%, var(--border)); transform: translateY(-1px); box-shadow: 0 0 24px color-mix(in oklab, var(--accent) 20%, transparent); }
.card-link { position:absolute; inset:0; }
.card-body { padding: 16px; }
.card-body h3 { margin: 4px 0 8px; font-size: 18px; }
.muted { color: var(--muted); font-size: 14px; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.tag { font-size: 12px; padding: 2px 8px; border-radius: 999px; background: linear-gradient(90deg, color-mix(in oklab, var(--accent) 25%, transparent), color-mix(in oklab, var(--accent-2) 25%, transparent)); color: var(--text); border: 1px solid color-mix(in oklab, var(--accent) 45%, var(--border)); box-shadow: 0 0 10px color-mix(in oklab, var(--accent) 20%, transparent) inset; }

.search { width: 280px; max-width: 60vw; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--border); background: var(--card); color: var(--text); }

.post h1 { margin-top: 22px; }
.markdown-body { border-top: 1px dashed var(--border); margin-top: 18px; padding-top: 16px; }
.markdown-body img { max-width: 100%; border-radius: 10px; }
.markdown-body pre { background: #0c111b; padding: 14px; overflow: auto; border-radius: 10px; border: 1px solid var(--border); box-shadow: 0 0 0 1px rgba(255,255,255,0.02) inset, 0 0 24px rgba(31, 41, 55, 0.6) inset; }
.markdown-body code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; }
.markdown-body a { color: var(--accent-2); }

@media (max-width: 640px){
  .nav { height: 56px; }
  .card-grid { grid-template-columns: 1fr; }
}


/* Social buttons */
.socials { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 12px; }
.social-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  box-shadow: inset 0 0 12px rgba(0,0,0,0.35);
}
.social-btn::before {
  content: "";
  position: absolute; inset: -1px; border-radius: 12px; padding: 1px;
  background: conic-gradient(from 90deg, color-mix(in oklab, var(--accent) 45%, transparent), color-mix(in oklab, var(--accent-2) 45%, transparent), color-mix(in oklab, var(--neon-purple) 45%, transparent), color-mix(in oklab, var(--neon-cyan) 45%, transparent), color-mix(in oklab, var(--accent) 45%, transparent));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: .22; pointer-events: none;
}
.social-btn:hover { border-color: color-mix(in oklab, var(--accent) 35%, var(--border)); box-shadow: 0 0 18px color-mix(in oklab, var(--accent) 18%, transparent); }
.social-btn svg { width: 18px; height: 18px; fill: currentColor; opacity: 0.9; }
.social-btn .label { letter-spacing: 0.2px; }