/* DEATH-BY-KI.DE – CRT terminal stylesheet (vanilla, no framework) */

:root {
  --bg: #050705;
  --bg-2: #0a0f0a;
  --fg: #33ff66;
  --fg-dim: #1f9a40;
  --fg-faint: #146a2c;
  --amber: #ffb000;
  --red: #ff4b4b;
  --glow: 0 0 2px rgba(51, 255, 102, .55), 0 0 8px rgba(51, 255, 102, .18);
  --mono: "IBM Plex Mono", "JetBrains Mono", "Fira Mono", "SF Mono", Menlo, Consolas, "Liberation Mono", "Courier New", monospace;
  --fs: clamp(13px, 1.55vw, 17px);
  --pad: clamp(14px, 3vw, 40px);
}

* { box-sizing: border-box; }
html { background: #000; }
body {
  margin: 0;
  min-height: 100svh;
  background: radial-gradient(ellipse at center, var(--bg-2) 0%, var(--bg) 70%, #000 100%);
  color: var(--fg);
  font-family: var(--mono);
  font-size: var(--fs);
  line-height: 1.45;
  text-shadow: var(--glow);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--fg); text-decoration: underline; text-decoration-color: var(--fg-faint); text-underline-offset: 3px; }
a:hover, a:focus-visible { color: var(--amber); outline: none; text-decoration-color: var(--amber); }
::selection { background: var(--fg); color: #000; text-shadow: none; }

/* ---------- CRT overlay ---------- */
.crt::before {
  content: "";
  position: fixed; inset: 0; z-index: 50; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, .22) 0px, rgba(0, 0, 0, .22) 1px, transparent 2px, transparent 4px);
  mix-blend-mode: multiply;
}
.crt::after {
  content: "";
  position: fixed; inset: 0; z-index: 51; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, .55) 100%);
}
.flicker {
  position: fixed; inset: 0; z-index: 52; pointer-events: none;
  background: rgba(20, 255, 80, .025);
  animation: flicker 4s infinite;
}
@keyframes flicker {
  0%, 100% { opacity: .35; } 3% { opacity: .55; } 6% { opacity: .3; } 8% { opacity: .6; }
  9% { opacity: .35; } 45% { opacity: .38; } 47% { opacity: .5; } 50% { opacity: .33; } 80% { opacity: .4; } 82% { opacity: .55; } 84% { opacity: .35; }
}
.scan {
  position: fixed; left: 0; right: 0; height: 90px; z-index: 53; pointer-events: none;
  background: linear-gradient(to bottom, transparent, rgba(51, 255, 102, .05), transparent);
  animation: scan 9s linear infinite;
}
@keyframes scan { from { top: -100px; } to { top: 100%; } }

/* ---------- Layout ---------- */
.screen {
  position: relative; z-index: 1;
  max-width: 96ch; margin: 0 auto;
  padding: var(--pad);
  padding-bottom: calc(var(--pad) * 2);
}
#terminal {
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
  min-height: 60svh;
}
#terminal .line { display: block; min-height: 1.45em; }
#terminal .dim { color: var(--fg-dim); }
#terminal .faint { color: var(--fg-faint); }
#terminal .amber { color: var(--amber); text-shadow: 0 0 2px rgba(255, 176, 0, .6), 0 0 8px rgba(255, 176, 0, .2); }
#terminal .red { color: var(--red); text-shadow: 0 0 2px rgba(255, 75, 75, .6), 0 0 8px rgba(255, 75, 75, .2); }
#terminal .bold { font-weight: 700; }
#terminal .big {
  display: block; text-align: center;
  font-size: clamp(2.1em, 7vw, 4.4em); line-height: 1.05; font-weight: 700; letter-spacing: .02em;
  margin: .25em 0;
}
#terminal .mid { display: block; text-align: center; font-size: clamp(1.25em, 3.5vw, 1.9em); font-weight: 700; margin: .2em 0; }
#terminal .center { display: block; text-align: center; }
#terminal .rule { color: var(--fg-dim); letter-spacing: -.02em; }
#terminal .cmd { color: var(--amber); cursor: pointer; text-decoration: none; border-bottom: 1px dashed var(--fg-faint); }
#terminal .cmd:hover, #terminal .cmd:focus-visible { border-bottom-color: var(--amber); outline: none; }
#terminal .box { display: block; border: 1px solid var(--fg-dim); padding: .8em 1em; margin: .6em 0; }
#terminal .invert { background: var(--fg); color: #000; text-shadow: none; padding: 0 .35em; }
#terminal .blink { animation: blink 1.1s steps(1) infinite; }

/* ---------- Input line ---------- */
.prompt-line { display: flex; align-items: baseline; gap: .6ch; }
.prompt-line .ps { flex: 0 0 auto; }
.prompt-line .wrap { position: relative; flex: 1 1 auto; min-width: 0; }
#cmd {
  width: 100%;
  background: transparent; border: 0; outline: 0; padding: 0; margin: 0;
  color: var(--fg); font: inherit; text-shadow: inherit;
  caret-color: transparent; letter-spacing: inherit;
  -webkit-appearance: none; appearance: none; border-radius: 0;
}
#cmd::placeholder { color: var(--fg-faint); opacity: 1; }
.cursor {
  position: absolute; top: .1em; bottom: .05em; width: .62ch;
  background: var(--fg); pointer-events: none;
  animation: blink 1.05s steps(1) infinite;
  box-shadow: 0 0 6px rgba(51, 255, 102, .5);
}
@keyframes blink { 50% { opacity: 0; } }
.prompt-line.busy { opacity: .35; }
.prompt-line.busy .cursor { animation: none; opacity: 0; }

/* ---------- Progress bar ---------- */
.bar { display: inline-block; letter-spacing: -.02em; }

/* ---------- Result card canvas (hidden, used for share image) ---------- */
#card { display: none; }

/* ---------- README / SEO content (below terminal) ---------- */
.readme {
  position: relative; z-index: 1;
  max-width: 96ch; margin: 0 auto; padding: 0 var(--pad) var(--pad);
  color: var(--fg-dim);
}
.readme h1, .readme h2, .readme h3 { color: var(--fg); font-size: 1em; font-weight: 700; letter-spacing: .04em; margin: 1.8em 0 .6em; }
.readme h1 { font-size: 1.15em; margin-top: 0; }
.readme h1::before, .readme h2::before { content: "## "; color: var(--fg-faint); }
.readme p, .readme li { max-width: 80ch; }
.readme ul { padding-left: 2ch; list-style: none; }
.readme li::before { content: "- "; color: var(--fg-faint); }
.readme .file { border-top: 1px dashed var(--fg-faint); padding-top: 1.2em; margin-top: 2em; }
.readme .file::before { content: attr(data-name); display: block; color: var(--fg-faint); font-size: .85em; margin-bottom: 1em; }
.readme kbd { color: var(--amber); font: inherit; }
.readme dl dt { color: var(--fg); margin-top: .8em; }
.readme dl dd { margin: 0 0 0 2ch; }
.readme .legal { border: 1px solid var(--fg-faint); padding: 1em 1.2em; margin-top: 2em; white-space: pre-wrap; font-size: .92em; }

/* ---------- Footer ---------- */
footer {
  position: relative; z-index: 1;
  max-width: 96ch; margin: 0 auto; padding: 1.5em var(--pad) 2.5em;
  color: var(--fg-faint); font-size: .85em; border-top: 1px solid var(--fg-faint);
}
footer nav a { color: var(--fg-dim); margin-right: 1.5ch; }
footer p { margin: .6em 0; }

/* ---------- Content pages ---------- */
.page { max-width: 96ch; margin: 0 auto; padding: var(--pad); position: relative; z-index: 1; }
.page h1 { font-size: 1.3em; color: var(--fg); margin: 0 0 1em; letter-spacing: .05em; }
.page h1::before { content: "> "; color: var(--fg-dim); }
.page h2 { font-size: 1em; color: var(--fg); margin: 2em 0 .6em; letter-spacing: .04em; }
.page h2::before { content: "## "; color: var(--fg-faint); }
.page h3 { font-size: 1em; color: var(--fg-dim); margin: 1.4em 0 .4em; }
.page p, .page li { color: var(--fg-dim); max-width: 84ch; }
.page strong { color: var(--fg); font-weight: 700; }
.page ul { padding-left: 2ch; list-style: none; }
.page li { margin: .3em 0; }
.page li::before { content: "- "; color: var(--fg-faint); }
.page ol { padding-left: 3ch; }
.page ol li { color: var(--fg-dim); }
.page ol li::before { content: none; }
.page pre { border: 1px solid var(--fg-faint); padding: 1em; overflow-x: auto; color: var(--fg); background: rgba(0, 0, 0, .35); }
.page table { border-collapse: collapse; margin: 1em 0; color: var(--fg-dim); font-size: .95em; }
.page th, .page td { text-align: left; padding: .35em 1.2ch .35em 0; border-bottom: 1px dashed var(--fg-faint); vertical-align: top; }
.page th { color: var(--fg); }
.page .todo { color: var(--amber); border: 1px dashed var(--amber); padding: .6em 1em; margin: 1em 0; }
.page .back { display: inline-block; margin-bottom: 2em; color: var(--amber); }
.page .table-wrap { overflow-x: auto; }

/* ---------- Skip link / a11y ---------- */
.skip { position: absolute; left: -9999px; top: 0; }
.skip:focus { left: var(--pad); top: 8px; z-index: 99; background: var(--fg); color: #000; padding: .3em .8em; text-shadow: none; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Motion / mobile ---------- */
@media (prefers-reduced-motion: reduce) {
  .flicker, .scan { display: none; }
  .cursor, #terminal .blink { animation: none; }
}
@media (max-width: 640px) {
  :root { --fs: 13px; }
  .crt::after { display: none; }
  #terminal { min-height: 55svh; }
  #terminal .big { font-size: 2.2em; }
}
@media print {
  .crt::before, .crt::after, .flicker, .scan, .prompt-line { display: none !important; }
  body { background: #fff; color: #000; text-shadow: none; }
}