:root {
  --crt-bg: #000;
  --crt-fg: #33ff66;
  --crt-fg-bright: #b9ffce;
  --crt-fg-dim: #1a8033;
  --crt-link: #7dffaa;
  --crt-glow: rgba(51, 255, 102, 0.45);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--crt-bg);
  color: var(--crt-fg);
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

body {
  text-shadow:
    -0.5px 0 0 rgba(255, 60, 80, 0.35),
    0.5px 0 0 rgba(80, 200, 255, 0.35),
    0 0 1px currentColor,
    0 0 6px var(--crt-glow);
}

.crt {
  position: relative;
  min-height: 100vh;
}

.crt__screen {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.5rem 6rem;
  position: relative;
  z-index: 1;
}

.crt__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  border-bottom: 1px dashed var(--crt-fg-dim);
  padding-bottom: 0.75rem;
  margin-bottom: 2rem;
  font-size: 0.85rem;
  color: var(--crt-fg-dim);
}

.crt__views {
  height: 1.8em;
  width: auto;
  opacity: 0.55;
  flex: 0 0 auto;
}

.crt__header a {
  color: var(--crt-fg);
  text-decoration: none;
}

.crt__header a:hover { color: var(--crt-fg-bright); }

.crt__content::after {
  content: '_';
  display: inline-block;
  margin-left: 0.25em;
  color: var(--crt-fg-bright);
  animation: blink 1s steps(2) infinite;
}

@keyframes blink { 50% { opacity: 0; } }

h1, h2, h3, h4, h5, h6 {
  color: var(--crt-fg-bright);
  font-weight: 700;
  margin: 2rem 0 0.75rem;
  line-height: 1.3;
}

h1 { font-size: 1.55rem; }
h2 { font-size: 1.2rem; margin-top: 2.25rem; }
h3 { font-size: 1.05rem; }
h4, h5, h6 { font-size: 1rem; }

h1::before, h2::before, h3::before { color: var(--crt-fg-dim); }
h1::before { content: '# '; }
h2::before { content: '## '; }
h3::before { content: '### '; }

a {
  color: var(--crt-link);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
}

a:hover {
  background: var(--crt-link);
  color: var(--crt-bg);
  text-decoration: none;
}

p, ul, ol, blockquote { margin: 0.75rem 0; }
ul, ol { padding-left: 1.5rem; }
li { margin: 0.2rem 0; }
ul li::marker { color: var(--crt-fg-dim); }

strong { color: var(--crt-fg-bright); }
em { color: var(--crt-fg-bright); font-style: italic; }

code, pre, kbd, samp {
  font-family: inherit;
  color: var(--crt-fg-bright);
}

code {
  background: rgba(51, 255, 102, 0.08);
  padding: 0.05rem 0.3rem;
  border-radius: 2px;
}

pre {
  background: rgba(51, 255, 102, 0.04);
  border-left: 2px solid var(--crt-fg-dim);
  padding: 0.85rem 1rem;
  overflow-x: auto;
  margin: 1rem 0;
}

pre code {
  background: transparent;
  padding: 0;
}

.highlight, .highlight pre { background: transparent !important; }
.highlight * { color: var(--crt-fg-bright) !important; }

table {
  border-collapse: collapse;
  margin: 1rem 0;
  width: 100%;
  font-size: 0.95em;
}

th, td {
  border: 1px solid var(--crt-fg-dim);
  padding: 0.4rem 0.7rem;
  text-align: left;
}

th { color: var(--crt-fg-bright); background: rgba(51, 255, 102, 0.05); }

hr {
  border: 0;
  border-top: 1px dashed var(--crt-fg-dim);
  margin: 2rem 0;
}

blockquote {
  border-left: 2px solid var(--crt-fg-dim);
  padding-left: 1rem;
  color: var(--crt-fg-dim);
  margin-left: 0;
}

img { max-width: 100%; filter: hue-rotate(80deg) saturate(0.6); }

::selection { background: var(--crt-fg); color: var(--crt-bg); }

/* CRT shader overlays */
.crt__overlay,
.crt__vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
}

.crt__overlay {
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.35) 3px
  );
  mix-blend-mode: multiply;
  animation: flicker 3s infinite;
}

.crt__vignette {
  background:
    radial-gradient(ellipse 80% 75% at center, transparent 35%, rgba(0, 0, 0, 0.55) 75%, rgba(0, 0, 0, 0.95) 100%);
  z-index: 11;
}

.crt__bezel {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 12;
  border-radius: 2.5rem;
  box-shadow:
    inset 0 0 0 6px #000,
    inset 0 0 40px 18px rgba(0, 0, 0, 0.9),
    inset 0 0 120px 70px rgba(0, 12, 5, 0.55),
    inset 0 0 220px 120px rgba(0, 0, 0, 0.45);
}

@keyframes flicker {
  0%, 100% { opacity: 1; }
  3%       { opacity: 0.85; }
  6%       { opacity: 1; }
  47%      { opacity: 1; }
  49%      { opacity: 0.92; }
  51%      { opacity: 1; }
}

/* OFF state — kill shader effects, keep green-on-black */
html.crt-off body { text-shadow: none; }
html.crt-off .crt__overlay,
html.crt-off .crt__vignette,
html.crt-off .crt__bezel { display: none; }

.crt__toggle {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 20;
  background: var(--crt-bg);
  color: var(--crt-fg);
  border: 1px solid var(--crt-fg-dim);
  font-family: inherit;
  font-size: 0.8rem;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  text-shadow: 0 0 4px var(--crt-glow);
}

.crt__toggle:hover {
  background: var(--crt-fg);
  color: var(--crt-bg);
  text-shadow: none;
}

.crt__toggle::before {
  content: '● ';
  color: var(--crt-fg);
}

html.crt-off .crt__toggle { text-shadow: none; }
html.crt-off .crt__toggle::before { content: '○ '; color: var(--crt-fg-dim); }

@media (max-width: 600px) {
  html, body { font-size: 14px; }
  .crt__screen { padding: 1.25rem 1rem 5rem; }
}