:root {
  --bg: #0a0e0c;
  --bg-2: #050805;
  --green: #1cff7c;
  --green-d: #0e8a42;
  --amber: #ffb648;
  --red: #ff3050;
  --mute: #4a584e;
  --ink: #c7e9d0;

  --glow: 0 0 6px rgba(28, 255, 124, 0.4);
  --glow-soft: 0 0 14px rgba(28, 255, 124, 0.18);
  --border: 1px solid rgba(28, 255, 124, 0.18);
  --border-d: 1px solid rgba(28, 255, 124, 0.08);

  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --display: "Space Mono", "JetBrains Mono", ui-monospace, monospace;
}

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

html, body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-weight: 400;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body {
  /* WHY: layered backgrounds = phosphor base + horizontal scanlines + faint corner vignette */
  background:
    radial-gradient(120% 80% at 50% 0%, rgba(28, 255, 124, 0.05), transparent 60%),
    radial-gradient(60% 60% at 50% 110%, rgba(28, 255, 124, 0.04), transparent 60%),
    var(--bg);
  min-height: 100svh;
  position: relative;
}

::selection { background: var(--green); color: var(--bg-2); }
a { color: inherit; text-decoration: none; }
em { font-style: normal; color: var(--ink); }

/* ────────────────── overlays ────────────────── */

.crt {
  pointer-events: none;
  position: fixed; inset: 0; z-index: 90;
  background: repeating-linear-gradient(
    0deg,
    transparent 0 2px,
    rgba(255, 255, 255, 0.022) 2px 3px
  );
  mix-blend-mode: screen;
}

.vignette {
  pointer-events: none;
  position: fixed; inset: 0; z-index: 91;
  background:
    radial-gradient(140% 100% at 50% 50%, transparent 55%, rgba(0, 0, 0, 0.55) 100%),
    radial-gradient(100% 60% at 50% 0%, rgba(28, 255, 124, 0.03), transparent 70%);
}

.grain {
  pointer-events: none;
  position: fixed; inset: 0; z-index: 92;
  width: 100%; height: 100%;
  opacity: 0.35;
  mix-blend-mode: overlay;
}

/* ────────────────── top bar ────────────────── */

.topbar {
  position: sticky; top: 0; z-index: 80;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 14px 24px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(5, 8, 5, 0.92), rgba(5, 8, 5, 0.6) 70%, transparent);
  border-bottom: var(--border-d);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.tb-left { color: var(--green); text-shadow: var(--glow); }
.tb-mid { display: inline-flex; align-items: center; gap: 10px; justify-self: center; color: var(--ink); }
.tb-right { justify-self: end; color: var(--mute); }
.tb-right #operator { color: var(--green); text-shadow: var(--glow); }

.pulse-dot {
  width: 8px; height: 8px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(28, 255, 124, 0.8);
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.3; transform: scale(0.75); }
}

/* ────────────────── layout shell ────────────────── */

main {
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 24px 96px;
}

.section-head {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: 16px;
  margin: 72px 0 28px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
}
.section-head h2 {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--green);
  text-shadow: var(--glow);
}
.section-head .rule {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(28, 255, 124, 0.35), transparent);
}
.section-head .rule:first-child { width: 28px; background: linear-gradient(90deg, transparent, rgba(28, 255, 124, 0.4)); }
.section-head .section-meta { color: var(--mute); }

/* ────────────────── HERO ────────────────── */

.hero { padding: 64px 0 32px; position: relative; }

.hero-meta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  border: var(--border-d);
  padding: 8px 14px;
  border-radius: 2px;
  background: rgba(5, 8, 5, 0.5);
  margin-bottom: 36px;
}
.hero-meta .kbd {
  display: inline-block;
  padding: 2px 6px;
  border: 1px solid rgba(28, 255, 124, 0.3);
  color: var(--green);
  text-shadow: var(--glow);
  font-size: 10px;
  letter-spacing: 0.1em;
}
.dot-sep { color: var(--mute); }
.hero-meta em#uptime { color: var(--green); text-shadow: var(--glow); }

.hero-title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(72px, 14vw, 180px);
  line-height: 0.88;
  letter-spacing: -0.05em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 28px;
}
.hero-title .line {
  display: block;
  /* WHY: position: relative is needed so SplitText spans don't escape clipping */
  position: relative;
}
.hero-title .line-accent { color: var(--green); text-shadow: 0 0 18px rgba(28, 255, 124, 0.35), 0 0 2px rgba(28, 255, 124, 0.8); }
.caret {
  display: inline-block;
  margin-left: 0.06em;
  color: var(--green);
  animation: blink 1.05s steps(1, end) infinite;
  vertical-align: -0.04em;
  text-shadow: var(--glow);
}
.caret.big { font-size: 1em; }
@keyframes blink { 50% { opacity: 0; } }

.hero-sub {
  max-width: 640px;
  font-size: 14px;
  color: var(--ink);
  margin-bottom: 48px;
}
.hero-sub .dim { color: var(--mute); }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 480px) 1fr;
  gap: 32px;
  align-items: start;
}

.log {
  background: linear-gradient(180deg, rgba(5, 8, 5, 0.85), rgba(5, 8, 5, 0.65));
  border: var(--border);
  border-radius: 4px;
  box-shadow: var(--glow-soft), inset 0 0 0 1px rgba(28, 255, 124, 0.04);
  overflow: hidden;
  width: 100%;
  max-width: 480px;
}
.log-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-bottom: var(--border-d);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  background: rgba(255, 255, 255, 0.015);
}
.log-title { margin-left: 8px; }
.led {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.led.red    { background: var(--red);   box-shadow: 0 0 8px rgba(255, 48, 80, 0.7); }
.led.amber  { background: var(--amber); box-shadow: 0 0 8px rgba(255, 182, 72, 0.7); }
.led.green  { background: var(--green); box-shadow: 0 0 8px rgba(28, 255, 124, 0.7); }
.led.sm     { width: 6px; height: 6px; }

.log-body {
  list-style: none;
  padding: 16px 18px;
  font-size: 12.5px;
  line-height: 1.85;
  counter-reset: log;
}
.log-body li {
  position: relative;
  color: var(--ink);
  padding-left: 100px;
  opacity: 0; /* set visible by JS timeline */
}
.log-body li::before {
  content: "[ " attr(data-t) " ]";
  position: absolute;
  left: 0;
  color: var(--mute);
}
.log-body li .ok    { color: var(--green); text-shadow: var(--glow); }
.log-body li .amber { color: var(--amber); }
.log-body li.prompt {
  padding-left: 0;
  margin-top: 10px;
  color: var(--green);
  text-shadow: var(--glow);
}
.log-body li.prompt::before { content: ""; }

.ascii {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--green-d);
  white-space: pre;
  line-height: 1.2;
  opacity: 0.85;
  align-self: start;
  padding-top: 4px;
  text-shadow: 0 0 4px rgba(14, 138, 66, 0.5);
}
.ascii pre { font-family: inherit; }

/* ────────────────── CAPABILITY GRID ────────────────── */

.modules { margin-top: 48px; }
.grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(28, 255, 124, 0.1);
  border: var(--border-d);
}
.card {
  background: var(--bg);
  padding: 22px 22px 18px;
  position: relative;
  transition: background 220ms ease, box-shadow 220ms ease;
  cursor: crosshair;
  min-height: 220px;
  display: flex;
  flex-direction: column;
}
.card::before {
  content: "";
  position: absolute; inset: 0;
  border: 1px solid transparent;
  pointer-events: none;
  transition: border-color 220ms ease, box-shadow 220ms ease;
}
.card:hover {
  background: rgba(28, 255, 124, 0.035);
  box-shadow: inset 0 0 20px rgba(28, 255, 124, 0.06);
}
.card:hover::before {
  border-color: rgba(28, 255, 124, 0.45);
  box-shadow: 0 0 18px rgba(28, 255, 124, 0.18), inset 0 0 0 1px rgba(28, 255, 124, 0.25);
}
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 28px;
}
.card-top .tag { color: var(--green); text-shadow: var(--glow); }
.card-top .status { display: inline-flex; align-items: center; gap: 6px; }
.card-title {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(18px, 1.6vw, 22px);
  letter-spacing: -0.01em;
  color: var(--green);
  text-shadow: var(--glow);
  margin-bottom: 16px;
  min-height: 28px;
}
.card-desc {
  font-size: 12.5px;
  color: var(--mute);
  line-height: 1.7;
  flex: 1;
}
.card-foot {
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px dashed rgba(28, 255, 124, 0.12);
  display: flex;
  justify-content: space-between;
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
}
.card-foot .seq { color: var(--green-d); letter-spacing: 0; }

/* ────────────────── MARQUEE ────────────────── */

.marquee-wrap {
  margin: 80px -24px 80px;
  border-top: var(--border-d);
  border-bottom: var(--border-d);
  background: linear-gradient(180deg, rgba(5,8,5,0.7), rgba(5,8,5,0.95));
  overflow: hidden;
  position: relative;
}
.marquee {
  white-space: nowrap;
  overflow: hidden;
  padding: 18px 0;
}
.track {
  display: inline-flex;
  animation: track 28s linear infinite;
  will-change: transform;
}
.track span {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(60px, 10vw, 140px);
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--green);
  text-shadow: 0 0 14px rgba(28, 255, 124, 0.3);
  padding-right: 0;
}
@keyframes track {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-33.3333%, 0, 0); }
}
.marquee.glitch {
  filter: drop-shadow(2px 0 0 rgba(255, 48, 80, 0.7)) drop-shadow(-2px 0 0 rgba(0, 200, 255, 0.7));
}

/* ────────────────── CONSOLE / FOOTER ────────────────── */

.console { margin-top: 24px; }
.console-frame {
  border: var(--border);
  background: linear-gradient(180deg, rgba(5,8,5,0.92), rgba(5,8,5,0.7));
  border-radius: 4px;
  box-shadow: var(--glow-soft);
  padding: 18px 20px 22px;
}
.console-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px dashed rgba(28, 255, 124, 0.12);
}
.console-meta em { color: var(--green); text-shadow: var(--glow); }
.console-meta span { display: inline-flex; align-items: center; gap: 6px; }

.console-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 8px 0;
}
.cli-prompt {
  color: var(--green);
  text-shadow: var(--glow);
  font-size: 13px;
  white-space: nowrap;
}
.cli-shell {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
}
#cli {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  caret-color: var(--green);
  padding: 4px 0;
  letter-spacing: 0;
}
#cli::placeholder { color: var(--mute); font-style: normal; }

.console-out {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--green);
  text-shadow: var(--glow);
  min-height: 1.4em;
  letter-spacing: 0;
}

.footer-nav {
  margin-top: 48px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.footer-nav a {
  color: var(--ink);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 200ms ease, border-color 200ms ease, text-shadow 200ms ease;
}
.footer-nav a:hover {
  color: var(--green);
  border-color: rgba(28, 255, 124, 0.5);
  text-shadow: var(--glow);
}
.footer-nav .sep { color: var(--mute); }

.bottom {
  margin-top: 38px;
  padding-top: 18px;
  border-top: var(--border-d);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
}
.bottom em { color: var(--green); text-shadow: var(--glow); }

/* ────────────────── RESPONSIVE ────────────────── */

@media (max-width: 900px) {
  main { padding: 0 16px 64px; }
  .topbar {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 4px 12px;
    padding: 10px 16px;
    font-size: 10px;
  }
  .tb-mid { grid-column: 1 / -1; justify-self: start; order: 3; }
  .tb-right { justify-self: end; }

  .hero { padding: 40px 0 16px; }
  .hero-title { font-size: clamp(48px, 16vw, 90px); }
  .hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .ascii { font-size: 10px; }

  .grid { grid-template-columns: 1fr; }
  .card { min-height: 0; }

  .marquee { padding: 12px 0; }
  .track { animation-duration: 22s; }

  .console-row { flex-wrap: wrap; }
  .cli-prompt { font-size: 11px; }
  .bottom { flex-direction: column; gap: 10px; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  .pulse-dot, .caret, .track { animation: none !important; }
}