:root{
  --bg:#0a0e1a; --panel:#0f1326; --fg:#d7eaff; --muted:#9fb1d6;
  --cyan:#00fff0; --mag:#ff34d2; --rule:#1a234a; --max:70ch;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace}
.wrap{max-width:var(--max);margin:auto;padding:clamp(16px,3vw,28px)}
.crt{position:relative;border:1px solid #20284a;border-radius:14px;overflow:hidden;
  background:linear-gradient(180deg,#0b1030 0%,#0a0e1a 100%);
  box-shadow:0 0 0 2px #0b1030, 0 20px 60px rgba(0,0,0,.6);
}
.crt::before{
  content:"";position:absolute;inset:0;pointer-events:none;mix-blend-mode:screen;
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,.04) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, rgba(0,255,240,.045) 0 2px, rgba(255,52,210,.045) 2px 4px, rgba(215,234,255,.03) 4px 6px);
}
header{padding:28px 22px 10px;background:
  radial-gradient(1200px 300px at 10% -20%, rgba(0,255,240,.22), transparent 60%),
  radial-gradient(900px 260px at 100% -10%, rgba(255,52,210,.18), transparent 60%)}
h1{margin:0 0 6px;font-size:clamp(1.6rem,4vw,2.4rem);line-height:1.1;
  text-shadow:0 0 6px rgba(0,255,240,.35), 0 0 18px rgba(255,52,210,.25);letter-spacing:.02em;}
.byline{color:var(--muted);font-size:.95rem;margin:0 0 16px}
.byline a{color:inherit;text-decoration:none;border-bottom:1px dotted currentColor}
article{padding:16px 22px 24px}
article p{margin:0 0 1em}
.panel{background:var(--panel);border:1px solid var(--rule);border-radius:10px;padding:14px 16px;margin:12px 0;box-shadow:inset 0 0 0 1px var(--rule),0 6px 20px rgba(0,0,0,.4)}
.meter{height:8px;background:#091025;border-radius:999px;overflow:hidden}
.meter>span{display:block;height:100%;width:62%;background:linear-gradient(90deg,var(--cyan),var(--mag))}
.rule{height:2px;background:linear-gradient(90deg,var(--cyan),transparent);border-radius:2px;margin:14px 22px}
.tags{display:flex;flex-wrap:wrap;gap:10px;padding:0 22px 22px}
.tag{font-size:.85rem;padding:.35rem .65rem;border-radius:999px;color:#031321;text-decoration:none;background:linear-gradient(90deg,var(--cyan),var(--mag));box-shadow:0 0 20px rgba(0,255,240,.25)}
footer{padding:14px 22px 22px;color:var(--muted);font-size:.9rem}
a{color:var(--cyan)}
u {
  text-decoration: underline;
}
@media (prefers-color-scheme: light){
  :root{--fg:#0a1020;--bg:#f6f9ff;--panel:#eaf2ff;--muted:#3a4a72;--rule:#cfe3ff}
  .crt{box-shadow:0 0 0 2px #cfe3ff, 0 20px 60px rgba(0,20,80,.15)}
  header{text-shadow:none}
}

blockquote {
  margin: 1.5em 22px;
  padding: 1em 1.5em;
  background: var(--panel);
  border-left: 4px solid var(--cyan);
  color: var(--muted);
  font-style: italic;
  border-radius: 8px;
  box-shadow: inset 0 0 0 1px var(--rule), 0 6px 20px rgba(0, 0, 0, 0.3);
}

blockquote::before {
  content: "“";
  font-size: 2.5rem;
  line-height: 0;
  vertical-align: -0.4em;
  color: var(--cyan);
  margin-right: 0.25em;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  background: #111628;
  color: var(--cyan);
  padding: 0.15em 0.4em;
  border-radius: 6px;
  font-size: 0.95em;
  box-shadow: inset 0 0 0 1px var(--rule);
}

pre code {
  display: block;
  padding: 1em;
  overflow-x: auto;
  background: var(--panel);
  color: var(--fg);
  border-radius: 10px;
  border: 1px solid var(--rule);
  box-shadow: inset 0 0 0 1px var(--rule), 0 6px 20px rgba(0, 0, 0, 0.4);
  line-height: 1.5;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  background: var(--panel);
  color: var(--fg);
  font-size: 0.95rem;
  box-shadow: inset 0 0 0 1px var(--rule), 0 4px 16px rgba(0, 0, 0, 0.3);
}

thead {
  background: rgba(0, 255, 240, 0.1);
  color: var(--cyan);
}

th,
td {
  border: 1px solid var(--rule);
  padding: 0.6em 1em;
  text-align: left;
}

tbody tr:nth-child(odd) {
  background-color: rgba(255, 255, 255, 0.02);
}

tbody tr:hover {
  background-color: rgba(0, 255, 240, 0.05);
}

input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 1.2em;
  height: 1.2em;
  margin-right: 0.6em;
  border: 2px solid var(--cyan);
  border-radius: 3px;
  background-color: var(--panel);
  position: relative;
  vertical-align: middle;
  cursor: pointer;
}

input[type="checkbox"]:checked {
  background-color: var(--cyan);
  border-color: var(--cyan);
}

input[type="checkbox"]::after {
  content: '';
  position: absolute;
  left: 0.35em;
  top: 0.15em;
  width: 0.3em;
  height: 0.6em;
  border: solid var(--bg);
  border-width: 0 0.15em 0.15em 0;
  transform: rotate(45deg);
  display: none;
}

input[type="checkbox"]:checked::after {
  display: block;
}

.hero img {
  width: auto;   /* set fixed width */
  height: 256px;   /* keep aspect ratio */
  display: block;
  margin: 0 auto 1.5rem;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
}