:root {
  --bg: #020805;
  --ink: #d4ffe4;
  --muted: #5f9a72;
  --green: #39ff88;
  --green-dim: #0d3b22;
  --line: rgba(57, 255, 136, 0.22);
  --mono: "IBM Plex Mono", "Cascadia Code", "Consolas", "Courier New", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
}

body { overflow-x: hidden; }

#matrix {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
}

.scanlines, .vignette {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 2;
}

.scanlines {
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 2px,
    rgba(0, 0, 0, 0.18) 2px 3px
  );
  opacity: 0.35;
}

.vignette {
  background: radial-gradient(ellipse at center, transparent 40%, rgba(0, 0, 0, 0.72) 100%);
}

.boot {
  position: relative;
  z-index: 3;
  min-height: 100vh;
  padding: 32px;
}

.boot pre {
  color: var(--green);
  font-size: 0.86rem;
  line-height: 1.55;
  text-shadow: 0 0 8px rgba(57, 255, 136, 0.45);
  white-space: pre-wrap;
}

.wrap {
  position: relative;
  z-index: 3;
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 20px 56px;
}

.bar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 10px 14px;
  border: 1px solid var(--line);
  background: rgba(2, 12, 8, 0.72);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.bar-left { display: flex; gap: 10px; align-items: center; }
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: blink 1.4s steps(2) infinite;
}
.prompt { color: var(--green); }
.path { color: var(--muted); }
.bar-mid { color: var(--green); }
.bar-right { color: var(--muted); }

.hero {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 36px;
  align-items: center;
  padding: 40px 0 20px;
}

.stage { position: relative; display: grid; place-items: center; }

.halo {
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(57, 255, 136, 0.22), transparent 68%);
  filter: blur(6px);
}

.tux-wrap {
  width: min(250px, 68vw);
  cursor: pointer;
  transform: translate(var(--tx, 0px), var(--ty, 0px));
  transition: transform 0.2s ease, filter 0.3s ease;
  filter: drop-shadow(0 0 18px rgba(57, 255, 136, 0.35));
}

.tux-wrap img { width: 100%; display: block; user-select: none; }
.tux-wrap.hop { animation: hop 0.5s cubic-bezier(.2, .8, .2, 1); }
.tux-hint { margin-top: 10px; color: var(--muted); font-size: 0.72rem; letter-spacing: 0.12em; }

.kicker {
  color: var(--green);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.7rem;
  margin-bottom: 14px;
}

h1 {
  font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1;
}

.glitch {
  position: relative;
  color: var(--green);
  display: inline-block;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  left: 0; top: 0;
  width: 100%;
}

.glitch::before {
  color: #7cffc0;
  animation: glitch 2.4s infinite;
  clip-path: inset(0 0 55% 0);
}

.glitch::after {
  color: #1aff6b;
  animation: glitch 2.4s infinite reverse;
  clip-path: inset(50% 0 0 0);
}

.lede {
  margin-top: 18px;
  max-width: 42ch;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.lede strong { color: var(--ink); }

.actions { display: flex; gap: 10px; margin-top: 26px; flex-wrap: wrap; }

button, .ghost {
  border: 1px solid var(--green);
  background: var(--green);
  color: #02140a;
  font: inherit;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 14px;
  cursor: pointer;
}

button:hover { filter: brightness(1.1); }

.ghost {
  background: transparent;
  color: var(--green);
}

.ghost:hover { background: rgba(57, 255, 136, 0.08); }

.grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 14px;
}

.panel {
  border: 1px solid var(--line);
  background: rgba(1, 10, 6, 0.78);
  padding: 0;
}

.panel > header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
}

.muted { color: var(--muted); text-transform: none; letter-spacing: 0; }

.term {
  min-height: 240px;
  max-height: 320px;
  overflow: auto;
  padding: 12px;
  font-size: 0.82rem;
  line-height: 1.5;
}

.term-out p, #term-out p { margin: 0; white-space: pre-wrap; }
.ok { color: var(--green); }
.err { color: #ff6b6b; }
.dim { color: var(--muted); }

.term-line { display: flex; gap: 8px; align-items: center; margin-top: 6px; }
.ps { color: var(--green); white-space: nowrap; }

#term-in {
  flex: 1;
  background: transparent;
  border: 0;
  color: var(--ink);
  font: inherit;
  outline: none;
  caret-color: var(--green);
}

.meters { padding: 12px 12px 4px; }
.meters label {
  display: grid;
  grid-template-columns: 36px 1fr 68px;
  gap: 8px;
  align-items: center;
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.meter {
  height: 8px;
  border: 1px solid var(--line);
  background: #03150c;
}

.meter i {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--green);
  box-shadow: 0 0 8px rgba(57, 255, 136, 0.5);
}

.procs {
  padding: 0 12px 12px;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.55;
}

.facts {
  margin-top: 14px;
  padding: 16px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.fact h3 {
  color: var(--green);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.fact p { color: var(--muted); font-size: 0.85rem; }

footer {
  margin-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 0.75rem;
}

footer em { color: var(--green); font-style: normal; }

@keyframes blink {
  50% { opacity: 0.2; }
}

@keyframes hop {
  0% { transform: translateY(0); }
  35% { transform: translateY(-16px); }
  100% { transform: translateY(0); }
}

@keyframes glitch {
  0%, 90%, 100% { transform: translate(0); }
  92% { transform: translate(-2px, 1px); }
  94% { transform: translate(2px, -1px); }
  96% { transform: translate(-1px, 0); }
}

@media (max-width: 860px) {
  .hero, .grid, .facts { grid-template-columns: 1fr; }
  .bar { flex-wrap: wrap; }
  .hero { text-align: center; }
  .lede { margin-inline: auto; }
  .actions { justify-content: center; }
  footer { flex-direction: column; text-align: center; }
}