* { box-sizing: border-box; }
:root {
  --bg: #0b1020; --panel: #131a31; --panel2: #182142; --border: #2a3454;
  --text: #e8ecff; --dim: #8b96c9; --blue: #85b7eb; --teal: #5dcaa5;
  --coral: #f0997b; --accent: #f0997b;
  --header-h: 56px;
}
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  #stars, #stars2 { animation: none; }
  #ambient { display: none; }
  .ship, .ship .flame { animation: none; }
  .board-mock .live-card { animation: none; box-shadow: 0 0 0 2px color-mix(in srgb, var(--teal) 50%, transparent); }
}
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--bg); color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px; line-height: 1.5;
}
#stars, #stars2 { position: fixed; inset: -100px; pointer-events: none; z-index: 0; }
#stars  { animation: drift 240s linear infinite; }
#stars2 { animation: drift 480s linear infinite; }
@keyframes drift { from { transform: translateY(0); } to { transform: translateY(200px); } }
#ambient { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.amb { position: absolute; will-change: transform; }
@keyframes amb-cross { from { transform: translateX(var(--x0)); } to { transform: translateX(var(--x1)); } }
@keyframes amb-tumble { from { transform: scale(var(--s,1)) rotate(0deg); } to { transform: scale(var(--s,1)) rotate(360deg); } }
@keyframes amb-bob { 0%,100% { transform: scale(var(--s,1)) translateY(0); } 50% { transform: scale(var(--s,1)) translateY(-12px); } }
@keyframes amb-spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes amb-blink { 0%,72% { opacity: 1; } 73%,100% { opacity: .15; } }
@keyframes amb-comet { 0% { transform: translate(0,0); opacity: 0; } 8% { opacity: .85; } 100% { transform: translate(var(--cx), var(--cy)); opacity: 0; } }

.skip {
  position: absolute; left: 12px; top: -40px; z-index: 5;
  background: var(--accent); color: #0b1020; padding: 8px 12px; border-radius: 4px;
}
.skip:focus { top: 8px; }

header {
  position: sticky; top: 0; z-index: 2;
  display: flex; align-items: center; gap: 16px;
  min-height: var(--header-h);
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.brand {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 15px; letter-spacing: 3px; font-weight: 600;
  color: var(--text); text-decoration: none; flex-shrink: 0;
}
.brand span { color: var(--accent); }
.brand .logo,
.hero-logo {
  border-radius: 6px; flex-shrink: 0;
  image-rendering: pixelated; image-rendering: crisp-edges;
}
.brand .logo { width: 28px; height: 28px; }
.hero-logo { display: block; width: 72px; height: 72px; border-radius: 14px; margin: 0 0 16px; }
nav { margin-left: auto; display: flex; gap: 14px; flex-wrap: wrap; justify-content: flex-end; align-items: center; }
nav a { color: var(--dim); text-decoration: none; font-size: 13px; }
nav a:hover, nav a:focus { color: var(--text); }
.lang { display: flex; gap: 4px; }
.lang button {
  font: inherit; font-size: 11px; letter-spacing: 1px; font-weight: 600;
  border: 1px solid var(--border); background: transparent; color: var(--dim);
  border-radius: 4px; padding: 4px 8px; cursor: pointer;
}
.lang button[aria-pressed="true"] { color: var(--text); border-color: var(--accent); }

main, footer { position: relative; z-index: 1; }
main { max-width: 52rem; margin: 0 auto; padding: 28px 20px 64px; }
section { scroll-margin-top: calc(var(--header-h) + 12px); margin: 48px 0; }
.hero { margin-top: 12px; }
.kicker { color: var(--accent); letter-spacing: 2px; font-size: 12px; text-transform: uppercase; margin: 0 0 8px; }
h1 { font-size: clamp(1.8rem, 6vw, 2.7rem); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 16px; }
h2 { font-size: 1.35rem; margin: 0 0 12px; }
h3 { font-size: 1.02rem; margin: 0 0 6px; }
.lede { font-size: 1.12rem; color: var(--dim); margin: 0 0 20px; max-width: 40rem; }
.lede strong { color: var(--text); font-weight: 600; }
.meta { color: var(--dim); font-size: 0.92rem; }
a { color: var(--blue); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); background: var(--panel2); color: var(--text);
  border-radius: 4px; padding: 8px 14px; font: inherit; font-size: 14px;
  text-decoration: none; cursor: pointer;
}
.btn:hover, .btn:focus { border-color: var(--accent); }
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--accent); color: #1a0e0a; border-color: var(--accent); font-weight: 600; }
.btn.copied { border-color: var(--teal); color: var(--teal); }

.board-mock {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px;
  margin: 8px 0 8px; pointer-events: none;
}
.board-mock .col {
  background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 10px;
  min-width: 0;
}
.board-mock h2 { font-size: 11px; letter-spacing: 1px; text-transform: uppercase; color: var(--dim); margin: 0 0 8px; }
.board-mock article {
  height: 36px; border-radius: 4px; background: var(--panel2); border: 1px solid var(--border); margin-bottom: 6px;
}
.board-mock .live { border-color: color-mix(in srgb, var(--teal) 50%, var(--border)); }
.board-mock .live-card {
  display: flex; align-items: center; padding: 0 10px;
  background: color-mix(in srgb, var(--teal) 10%, var(--panel2));
  border-color: color-mix(in srgb, var(--teal) 45%, var(--border));
  animation: card-work-pulse 1.4s ease-in-out infinite;
}
@keyframes card-work-pulse {
  0%, 100% { box-shadow: 0 0 0 1px color-mix(in srgb, var(--teal) 30%, transparent); }
  50% { box-shadow: 0 0 0 3px color-mix(in srgb, var(--teal) 35%, transparent), 0 0 18px color-mix(in srgb, var(--teal) 22%, transparent); }
}
.ship-track { display: inline-block; width: 46px; height: 12px; overflow: hidden; vertical-align: middle; }
.ship { display: inline-flex; align-items: center; height: 12px; animation: fly 4s ease-in-out infinite; }
.ship i { display: block; }
.ship .flame { width: 4px; height: 4px; background: var(--coral); animation: thrust .4s steps(1) infinite; }
.ship .hull { width: 7px; height: 7px; background: var(--blue); }
.ship .nose { width: 9px; height: 4px; background: var(--text); }
@keyframes fly { 0%,100% { transform: translateX(0) } 50% { transform: translateX(24px) translateY(-1px) } }
@keyframes thrust { 0%,49% { opacity: 1 } 50%,100% { opacity: .15 } }

.cards { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.cards li { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 14px 16px; }
.cards p { margin: 0; color: var(--dim); }
.need { margin: 0; padding-left: 1.2rem; color: var(--dim); }
.need li { margin: 6px 0; }

.term {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-start;
  background: var(--panel); border: 1px solid var(--border); border-radius: 6px;
  padding: 10px; margin: 12px 0;
}
.term pre {
  flex: 1 1 16rem; margin: 0; min-width: 0;
  overflow-x: auto; color: var(--teal); font-size: 13px;
}
.term .btn { flex: 0 0 auto; }

footer {
  border-top: 1px solid var(--border); padding: 24px 20px 40px;
  max-width: 52rem; margin: 0 auto; color: var(--dim); font-size: 0.92rem;
}
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

@media (max-width: 600px) {
  nav a:not([href="#install"]) { display: none; }
  .board-mock { grid-template-columns: 1fr; }
}