:root {
  --bg: #070a0e;
  --bg-1: #0c1117;
  --bg-2: #111820;
  --bg-3: #16202c;

  --surface: rgba(255,255,255,0.025);
  --surface-hover: rgba(255,255,255,0.045);
  --surface-active: rgba(255,255,255,0.07);

  --border: rgba(255,255,255,0.07);
  --border-mid: rgba(255,255,255,0.12);
  --border-hi: rgba(255,255,255,0.2);

  --text: #e8edf2;
  --text-2: #8b98a8;
  --text-3: #536070;

  --lime: #8fcc44;
  --lime-dim: rgba(143,204,68,0.15);
  --lime-glow: rgba(143,204,68,0.35);

  --cyan: #26d9c7;
  --cyan-dim: rgba(38,217,199,0.1);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --w: 1160px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --t1: 0.2s var(--ease);
  --t2: 0.4s var(--ease);
  --t3: 0.7s var(--ease);
}

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

html {
  font-size: 16px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
}

::selection {
  background: var(--lime);
  color: #000;
}

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 3px;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t1);
}

img, svg {
  display: block;
  max-width: 100%;
}

.w {
  width: 100%;
  max-width: var(--w);
  margin-inline: auto;
  padding-inline: 24px;
  position: relative;
  z-index: 1;
}

.skip {
  position: absolute;
  top: -100px;
  left: 16px;
  padding: 10px 18px;
  background: var(--lime);
  color: #000;
  font-weight: 700;
  z-index: 9999;
  border-radius: 4px;
  transition: top var(--t1);
}
.skip:focus { top: 16px; }

.accent { color: var(--lime); }
.mono { font-family: var(--mono); }

.tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--lime);
  font-family: var(--mono);
}

.chip {
  display: inline-flex;
  align-items: center;
  font-size: 0.76rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-family: var(--mono);
  letter-spacing: 0.02em;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--lime-dim);
  border: 1px solid rgba(143,204,68,0.3);
  color: var(--lime);
  font-family: var(--mono);
}

.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 8px var(--lime-glow);
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 7px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--t2);
  white-space: nowrap;
}

.btn-lime {
  background: var(--lime);
  color: #060a0d;
  font-weight: 700;
  box-shadow: 0 0 0 rgba(143,204,68,0);
}
.btn-lime:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--lime-glow);
}

.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border-mid);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: var(--surface-hover);
  border-color: var(--border-hi);
  transform: translateY(-2px);
}

.btn svg, .btn img { flex-shrink: 0; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color var(--t2), box-shadow var(--t2), transform var(--t2);
}
.card:hover {
  border-color: var(--border-mid);
  transform: translateY(-4px);
  box-shadow: 0 20px 48px rgba(0,0,0,0.5);
}

#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: var(--lime);
  z-index: 200;
  width: 0%;
  box-shadow: 0 0 10px var(--lime-glow);
  transition: width 80ms linear;
  transform-origin: left;
}

header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: rgba(7,10,14,0.82);
  backdrop-filter: blur(20px) saturate(1.4);
  transition: border-color var(--t2), box-shadow var(--t2);
}

header.site-header.scrolled {
  border-bottom-color: var(--border-mid);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
}

.hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  font-family: var(--mono);
}

.brand-mark {
  width: 30px;
  height: 30px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-2);
  padding: 6px 12px;
  border-radius: 6px;
  transition: all var(--t1);
  position: relative;
}
.nav-a:hover { color: var(--text); background: var(--surface); }
.nav-a.on { color: var(--lime); }

.nav-sep {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin-inline: 8px;
}

.menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px;
  cursor: pointer;
  color: var(--text-2);
  align-items: center;
  justify-content: center;
}

.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  background: #04060a;
  padding: 52px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-3);
  margin-top: 12px;
  line-height: 1.65;
  max-width: 380px;
}

.footer-col-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 16px;
  font-family: var(--mono);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-link {
  font-size: 0.88rem;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: color var(--t1);
}
.footer-link:hover { color: var(--lime); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-3);
  font-family: var(--mono);
  flex-wrap: wrap;
  gap: 12px;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--t3), transform var(--t3);
  will-change: opacity, transform;
}
.reveal.in {
  opacity: 1;
  transform: none;
}
.reveal-l {
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity var(--t3), transform var(--t3);
}
.reveal-l.in { opacity: 1; transform: none; }
.reveal-r {
  opacity: 0;
  transform: translateX(24px);
  transition: opacity var(--t3), transform var(--t3);
}
.reveal-r.in { opacity: 1; transform: none; }

.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
.delay-4 { transition-delay: 0.32s; }
.delay-5 { transition-delay: 0.40s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal, .reveal-l, .reveal-r {
    opacity: 1 !important;
    transform: none !important;
  }
}

@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: #0c1117; border-bottom: 1px solid var(--border); flex-direction: column; padding: 20px 24px; gap: 4px; align-items: flex-start; }
  .nav.open { display: flex; }
  .nav-sep { display: none; }
  .menu-btn { display: flex; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}