:root {
  --bg: #0a0a0a;
  --bg-2: #0e0e12;
  --panel: #111114;
  --line: #1f1f25;
  --line-2: #2a2a33;
  --fg: #f5f5f5;
  --fg-dim: #9c9caa;
  --accent: #6366f1;
  --crt-green: #4ade80;
  --crt-cyan: #22d3ee;
  --crt-amber: #fbbf24;
  --danger: #f43f5e;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", "Menlo", "Consolas", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(99, 102, 241, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(34, 211, 238, 0.08), transparent 60%),
    var(--bg);
}

a {
  color: var(--crt-cyan);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
}
a:hover {
  border-bottom-color: var(--crt-cyan);
}

/* CRT overlays */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  background: repeating-linear-gradient(
    0deg,
    rgba(255, 255, 255, 0.025) 0,
    rgba(255, 255, 255, 0.025) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
}
.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 99;
  background: radial-gradient(
    ellipse at center,
    transparent 55%,
    rgba(0, 0, 0, 0.55) 100%
  );
}

/* Boot terminal */
.boot {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  min-height: 100vh;
  padding: 18vh 6vw 6vw;
}
.boot pre {
  margin: 0;
  font-family: var(--mono);
  color: var(--crt-green);
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  text-shadow: 0 0 6px rgba(74, 222, 128, 0.45);
  max-width: 720px;
}
.boot.fade-out {
  opacity: 0;
  transition: opacity 320ms ease-out;
  pointer-events: none;
}

/* Page layout */
.page {
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(20px, 4vw, 48px) clamp(16px, 4vw, 36px) 60px;
  animation: fade-in 480ms ease-out both;
}
@keyframes fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Hero */
.hero {
  margin-bottom: 48px;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(240px, 280px) 1fr;
  gap: clamp(20px, 4vw, 48px);
  align-items: center;
}
@media (max-width: 720px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.robot {
  margin: 0;
  font-family: var(--mono);
  color: var(--fg);
  font-size: 13px;
  line-height: 1.25;
  letter-spacing: 0;
  text-shadow: 0 0 8px rgba(99, 102, 241, 0.35);
  white-space: pre;
}
.robot .eye {
  color: var(--crt-cyan);
  display: inline-block;
}
.eye-l { animation: blink 4.6s infinite; }
.eye-r { animation: blink 4.6s infinite 2.3s; }
@keyframes blink {
  0%, 92%, 100% { opacity: 1; }
  94%, 98% { opacity: 0.05; }
}

.kicker {
  margin: 0 0 8px;
  color: var(--crt-green);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.wordmark {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(38px, 7vw, 72px);
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--fg);
  position: relative;
  display: inline-block;
  cursor: default;
}
.wordmark::before,
.wordmark::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 120ms ease;
}
.wordmark::before { color: var(--crt-cyan); transform: translate(2px, 0); }
.wordmark::after  { color: var(--danger);  transform: translate(-2px, 0); }
.wordmark:hover::before,
.wordmark:hover::after { opacity: 0.85; animation: jitter 480ms steps(4) infinite; }
@keyframes jitter {
  0% { transform: translate(2px, 0); }
  25% { transform: translate(-2px, 1px); }
  50% { transform: translate(2px, -1px); }
  75% { transform: translate(-1px, 2px); }
  100% { transform: translate(2px, 0); }
}

.tagline {
  margin: 14px 0 22px;
  color: var(--fg-dim);
  font-size: 16px;
  max-width: 56ch;
}
.tagline .hl {
  color: var(--fg);
  background: linear-gradient(transparent 70%, rgba(99, 102, 241, 0.35) 70%);
  padding: 0 2px;
}
.cursor {
  color: var(--crt-green);
  margin-left: 4px;
  animation: blink-cursor 1.05s steps(2) infinite;
}
@keyframes blink-cursor { 50% { opacity: 0; } }

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  padding: 10px 14px;
  border: 1px solid var(--line-2);
  background: transparent;
  color: var(--fg);
  border-bottom: 1px solid var(--line-2);
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease, color 120ms ease;
}
.btn:hover { transform: translateY(-1px); }
.btn .bracket { color: var(--fg-dim); }

.btn-primary {
  background: rgba(99, 102, 241, 0.08);
  border-color: var(--accent);
  color: var(--fg);
}
.btn-primary:hover {
  background: rgba(99, 102, 241, 0.18);
  box-shadow: 0 0 0 1px var(--accent), 0 0 16px rgba(99, 102, 241, 0.35);
}
.btn-primary .bracket { color: var(--accent); }

.btn-ghost:hover {
  border-color: var(--crt-cyan);
  color: var(--crt-cyan);
}
.btn-ghost:hover .bracket { color: var(--crt-cyan); }

/* Panels */
.panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent), var(--panel);
  border: 1px solid var(--line);
  margin-bottom: 28px;
  position: relative;
}
.panel::before {
  /* Corner brackets */
  content: "";
  position: absolute;
  top: -1px; left: -1px;
  width: 14px; height: 14px;
  border-top: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
}
.panel::after {
  content: "";
  position: absolute;
  bottom: -1px; right: -1px;
  width: 14px; height: 14px;
  border-bottom: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
}

.panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px dashed var(--line);
}
.panel-head h2 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--fg);
}
.panel-meta {
  margin-left: auto;
  color: var(--fg-dim);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px currentColor;
}
.dot-green  { background: var(--crt-green); color: var(--crt-green); animation: pulse 2.4s infinite; }
.dot-cyan   { background: var(--crt-cyan);  color: var(--crt-cyan);  animation: pulse 2.4s infinite 0.8s; }
.dot-indigo { background: var(--accent);    color: var(--accent);    animation: pulse 2.4s infinite 1.6s; }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* Vital signs (pillars) */
.pillars {
  list-style: none;
  margin: 0;
  padding: 18px 16px 22px;
  display: grid;
  gap: 18px;
}
.pillar {
  padding: 4px 0 4px 12px;
  border-left: 2px solid var(--line-2);
  transition: border-left-color 160ms ease;
}
.pillar:hover { border-left-color: var(--crt-green); }
.pillar-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.04em;
}
.pillar-pip {
  color: var(--crt-green);
  text-shadow: 0 0 8px rgba(74, 222, 128, 0.55);
  font-size: 10px;
  line-height: 1;
}
.pillar-label {
  color: var(--fg);
  letter-spacing: 0.12em;
}
.pillar-log {
  margin: 6px 0 0;
  color: var(--fg-dim);
  font-size: 13px;
  line-height: 1.6;
  max-width: 78ch;
}
.pillar-log code {
  font-family: var(--mono);
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid var(--line);
  padding: 0 5px;
  border-radius: 2px;
  color: var(--fg);
  font-size: 12px;
}

/* Bundled systems chip rail */
.logo-rail {
  list-style: none;
  margin: 0;
  padding: 18px 16px 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.logo-rail li { display: contents; }
.logo-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 10px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--fg);
  font-size: 12px;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--line);
  transition: border-color 140ms ease, color 140ms ease, background 140ms ease;
}
.logo-chip:hover {
  border-color: var(--accent);
  color: var(--crt-cyan);
  background: rgba(99, 102, 241, 0.06);
}
.logo-chip img {
  width: 18px;
  height: 18px;
  object-fit: contain;
  filter: grayscale(1) brightness(1.6) opacity(0.8);
  transition: filter 200ms ease;
  flex-shrink: 0;
}
.logo-chip:hover img { filter: none; }
.logo-chip-mono {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--fg-dim);
  flex-shrink: 0;
  transition: color 140ms ease;
}
.logo-chip:hover .logo-chip-mono { color: var(--crt-cyan); }

/* Prose blocks inside panels (pitch, etc.) */
.prose {
  padding: 16px 20px 22px;
  max-width: 80ch;
}
.prose p {
  margin: 0 0 12px;
  color: var(--fg);
  font-size: 14.5px;
  line-height: 1.7;
}
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--fg); }
.prose em { color: var(--crt-cyan); font-style: normal; text-decoration: underline; text-decoration-style: dotted; text-underline-offset: 3px; }

/* Stack list */
.stack-list {
  list-style: none;
  margin: 0;
  padding: 14px 16px 18px;
  display: grid;
  gap: 10px;
}
.stack-list li {
  display: grid;
  grid-template-columns: 16ch 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 8px 8px 8px 10px;
  border-left: 2px solid var(--line-2);
}
.stack-list li:hover {
  border-left-color: var(--accent);
  background: rgba(99, 102, 241, 0.04);
}
.stack-label {
  color: var(--crt-green);
  font-size: 12px;
  letter-spacing: 0.14em;
}
.stack-value {
  color: var(--fg-dim);
  font-size: 13.5px;
  line-height: 1.55;
}
.stack-value code {
  font-family: var(--mono);
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid var(--line);
  padding: 0 5px;
  border-radius: 2px;
  color: var(--fg);
  font-size: 12px;
}
@media (max-width: 620px) {
  .stack-list li { grid-template-columns: 1fr; gap: 4px; }
}

/* Prereqs note above quickstart */
.prereqs {
  margin: 0;
  padding: 12px 18px 4px;
  color: var(--fg-dim);
  font-size: 13px;
  line-height: 1.6;
  max-width: 80ch;
}

/* Platform grid */
.grid {
  list-style: none;
  margin: 0;
  padding: 18px 16px 22px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
@media (max-width: 820px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 420px) { .grid { grid-template-columns: 1fr; } }

.card {
  border: 1px solid var(--line);
  background: var(--bg-2);
  padding: 14px;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.18);
}
.card-icon {
  margin: 0 0 8px;
  color: var(--crt-cyan);
  font-size: 11px;
  line-height: 1.1;
}
.card h3 {
  margin: 0 0 4px;
  font-size: 13px;
  letter-spacing: 0.14em;
}
.card-status {
  margin: 0 0 8px;
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.1em;
}
.card-status .ok {
  color: var(--crt-green);
  text-shadow: 0 0 6px rgba(74, 222, 128, 0.45);
}
.card:hover .card-status .ok { animation: flicker 600ms steps(3) 1; }
@keyframes flicker {
  0%, 100% { opacity: 1; }
  20%, 60% { opacity: 0.3; }
  40%, 80% { opacity: 1; }
}
.card-body {
  margin: 0;
  font-size: 12.5px;
  color: var(--fg-dim);
}

/* Quick start terminal */
.terminal {
  margin: 16px;
  border: 1px solid var(--line);
  background: #07070a;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  background: #0c0c10;
}
.tdot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--line-2);
}
.tdot:nth-child(1) { background: #3a3a44; }
.tdot:nth-child(2) { background: #3a3a44; }
.tdot:nth-child(3) { background: #3a3a44; }
.terminal-title {
  margin-left: 8px;
  color: var(--fg-dim);
  font-size: 12px;
}
.copy-btn {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg);
  background: transparent;
  border: 1px solid var(--line-2);
  padding: 4px 8px;
  cursor: pointer;
  letter-spacing: 0.08em;
}
.copy-btn:hover {
  border-color: var(--crt-cyan);
  color: var(--crt-cyan);
}
.copy-btn.done {
  border-color: var(--crt-green);
  color: var(--crt-green);
}
.snippet {
  margin: 0;
  padding: 14px 16px;
  color: var(--fg);
  font-size: 13px;
  line-height: 1.7;
  white-space: pre;
  overflow-x: auto;
}
.snippet .prompt { color: var(--accent); margin-right: 8px; }
.snippet .comment { color: var(--fg-dim); }

/* Footer */
.foot {
  margin-top: 36px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  color: var(--fg-dim);
  font-size: 12px;
  letter-spacing: 0.06em;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.foot a { color: var(--fg-dim); }
.foot a:hover { color: var(--crt-cyan); border-bottom-color: var(--crt-cyan); }
.foot-uptime {
  color: var(--crt-green);
  text-shadow: 0 0 6px rgba(74, 222, 128, 0.35);
}
.foot-sep { opacity: 0.4; margin: 0 6px; }
.foot-fine { margin: 0; opacity: 0.7; }

/* Diagnostic overload */
.overload[hidden] { display: none; }
.overload {
  position: fixed;
  inset: 0;
  background: rgba(244, 63, 94, 0.18);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  animation: overload-flicker 900ms steps(8) 1;
}
.overload-text {
  font-family: var(--mono);
  color: var(--danger);
  font-size: clamp(28px, 6vw, 64px);
  letter-spacing: 0.2em;
  text-shadow: 0 0 18px rgba(244, 63, 94, 0.7);
  animation: jitter 200ms steps(2) infinite;
}
@keyframes overload-flicker {
  0%, 100% { opacity: 0; }
  10%, 60% { opacity: 1; }
  30% { opacity: 0.2; }
  80% { opacity: 0.6; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .scanlines { display: none; }
}