:root {
  --bg: #0a0a0a;
  --bg-darker: #050505;
  --bg-card: #141414;
  --bg-card-hover: #1a1a1a;
  --fg: #f5f5f5;
  --fg-dim: #c0c0c0;
  --muted: #6a6a6a;
  --accent: #FF5400;
  --accent-bright: #FF7A33;
  --accent-dim: #B33A00;
  --accent-glow: rgba(255, 84, 0, 0.45);
  --silver: #C8C8C8;
  --silver-dim: #5a5a5a;
  --border: #1f1f1f;
  --border-light: #2a2a2a;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Archivo', sans-serif;
  overflow-x: hidden;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
.font-display { font-family: 'Bebas Neue', sans-serif; letter-spacing: 0.005em; }
.font-heading { font-family: 'Oswald', sans-serif; }
.font-body { font-family: 'Archivo', sans-serif; }
.font-mono { font-family: 'JetBrains Mono', monospace; }

/* Grain overlay */
.grain {
  position: fixed;
  inset: -10%;
  pointer-events: none;
  z-index: 200;
  opacity: 0.08;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='250' height='250'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  mix-blend-mode: overlay;
  will-change: transform;
}

/* Section reveal */
.reveal {
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1), transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--delay, 0s);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-stagger.in-view > * {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger.in-view > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger.in-view > *:nth-child(2) { transition-delay: 0.15s; }
.reveal-stagger.in-view > *:nth-child(3) { transition-delay: 0.3s; }

/* Pulse */
@keyframes pulse-cta {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(255, 84, 0, 0.65), 0 0 40px rgba(255, 84, 0, 0.3);
  }
  50% {
    box-shadow: 0 0 0 18px rgba(255, 84, 0, 0), 0 0 40px rgba(255, 84, 0, 0.3);
  }
}
.pulse-btn { animation: pulse-cta 2.4s ease-out infinite; }

/* Background texture */
.bg-textured {
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 84, 0, 0.06) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(80, 80, 80, 0.06) 0%, transparent 40%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='400' height='400'><filter id='r'><feTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='2'/></filter><rect width='100%' height='100%' filter='url(%23r)' opacity='0.4'/></svg>");
  background-blend-mode: normal, normal, overlay;
}

/* Card */
.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: border-color 0.4s, background 0.4s;
}
.info-card:hover {
  border-color: var(--accent-dim);
  background: var(--bg-card-hover);
}

/* Text effects */
.text-stroke {
  -webkit-text-stroke: 1.5px var(--silver-dim);
  color: transparent;
}
.text-stroke-accent {
  -webkit-text-stroke: 1.5px var(--accent);
  color: transparent;
}

/* Hero glow */
.hero-glow {
  background:
    linear-gradient(180deg, rgba(10,10,10,0.92) 0%, rgba(10,10,10,0.45) 28%, rgba(10,10,10,0.55) 65%, rgba(10,10,10,0.98) 100%),
    radial-gradient(ellipse at 25% 60%, rgba(255, 84, 0, 0.16) 0%, transparent 55%);
}

/* Headline chars reveal */
.headline-line {
  overflow: hidden;
  display: block;
}
.headline-line span {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 1s cubic-bezier(0.22, 1, 0.36, 1);
}
.in-view .headline-line span { transform: translateY(0); }
.headline-line:nth-child(2) span { transition-delay: 0.1s; }
.headline-line:nth-child(3) span { transition-delay: 0.2s; }

/* Section divider */
.section-marker {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
}
.section-marker::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--accent);
}

/* Card hover light */
.link-underline {
  position: relative;
  display: inline-block;
}
.link-underline::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.4s ease;
}
.link-underline:hover::after { width: 100%; }

/* Nav link */
.nav-link {
  position: relative;
  font-family: 'Oswald', sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-dim);
  transition: color 0.3s;
}
.nav-link:hover { color: var(--fg); }
.nav-link::before {
  content: '';
  position: absolute;
  left: -14px;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 4px;
  height: 4px;
  background: var(--accent);
  transition: transform 0.3s;
}
.nav-link:hover::before { transform: translateY(-50%) scaleY(1); }

/* Changelog item */
.release-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
}
.release-head .chevron {
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  color: var(--muted);
}
.release.open .release-head .chevron { transform: rotate(90deg); color: var(--accent); }
.release-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.release.open .release-body { grid-template-rows: 1fr; }
.release-body > div { overflow: hidden; min-height: 0; }

/* Download meta row */
.dl-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-darker); }
::-webkit-scrollbar-thumb { background: var(--accent-dim); }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }