:root {
  --background: #080808;
  --foreground: #c9c9c9;
  --accent: #cc1111;
  --code-border: rgba(204, 17, 17, 0.2);
  --glow: 0 0 8px rgba(204, 17, 17, 0.7);
  --glow-strong: 0 0 16px rgba(204, 17, 17, 0.9), 0 0 32px rgba(204, 17, 17, 0.4);
}

/* scanline overlay */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.15) 2px,
    rgba(0, 0, 0, 0.15) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* logo glow */
.logo {
  background: var(--accent);
  color: #000;
  box-shadow: var(--glow-strong);
  letter-spacing: 0.05em;
}

/* header dotted line */
.header__logo::after {
  background: repeating-linear-gradient(
    90deg,
    var(--accent),
    var(--accent) 2px,
    transparent 0,
    transparent 10px
  );
  opacity: 0.4;
}

/* nav links */
.menu a {
  transition: color 0.15s, text-shadow 0.15s;
}

.menu a:hover,
.menu a.active {
  color: var(--accent);
  text-shadow: var(--glow);
}

/* headings */
h1, h2, h3 {
  color: #e8e8e8;
  letter-spacing: 0.03em;
}

h1 { text-shadow: var(--glow); }

/* normalize post title size between list (h2) and single (h1) pages */
h1.post-title {
  font-size: calc(var(--font-size) * 1.35);
}

/* post title on list page */
.post-title a {
  color: #e8e8e8;
  transition: color 0.15s, text-shadow 0.15s;
}

.post-title a:hover {
  color: var(--accent);
  text-shadow: var(--glow);
}

/* links */
a {
  color: var(--accent);
  text-decoration: none;
  transition: text-shadow 0.15s;
}

a:hover {
  text-shadow: var(--glow);
}

/* code blocks — red border glow */
pre {
  border: 1px solid rgba(204, 17, 17, 0.35) !important;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.5), 0 0 8px rgba(204, 17, 17, 0.15);
}

code, kbd {
  border-color: rgba(204, 17, 17, 0.25);
  color: #e0e0e0;
}

/* blockquote */
blockquote {
  border-color: var(--accent);
  border-left: 2px solid var(--accent);
  padding-left: 1.5ch;
  box-shadow: -4px 0 12px rgba(204, 17, 17, 0.2);
}

/* horizontal rule */
hr {
  background: var(--accent);
  box-shadow: var(--glow);
}

/* table headers */
th {
  background: rgba(204, 17, 17, 0.1);
  border-color: rgba(204, 17, 17, 0.4);
  color: var(--accent);
}

td {
  border-color: rgba(204, 17, 17, 0.2);
}

/* tags */
.tag a {
  border-color: rgba(204, 17, 17, 0.5);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.tag a:hover {
  border-color: var(--accent);
  box-shadow: var(--glow);
}

/* images */
img {
  border-color: var(--accent);
  box-shadow: var(--glow);
}

/* custom scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: #0d0d0d;
}

::-webkit-scrollbar-thumb {
  background: #660000;
  border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
  box-shadow: var(--glow);
}

/* selection highlight */
::selection {
  background: rgba(204, 17, 17, 0.35);
  color: #fff;
}

/* post metadata */
.post-info {
  color: #666;
  font-size: 0.85em;
}

/* footer */
.footer {
  border-top: 1px solid rgba(204, 17, 17, 0.2);
  color: #555;
}

/* blinking cursor after logo text */
.logo::after {
  content: "_";
  animation: blink 1.1s step-end infinite;
  margin-left: 2px;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}