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

:root {
  --bg: #0a0a0a;
  --bg2: #111;
  --bg3: #161616;
  --border: #222;
  --green: #4afa7a;
  --green-dim: #2a6640;
  --text: #d0d0d0;
  --text-dim: #666;
  --text-bright: #f0f0f0;
  --red: #ff5f57;
  --yellow: #ffbd2e;
  --dot-green: #28c840;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Cascadia Code', 'Consolas', monospace;
  line-height: 1.6;
  min-height: 100vh;
}

.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 60px;
  background: rgba(10,10,10,0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 1.3rem;
  color: var(--green);
  font-weight: 700;
  letter-spacing: -0.5px;
  text-decoration: none;
}
.nav-logo span { color: #fff; }

.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--green); }
.nav-links a svg { display: block; }

.nav-cta {
  background: var(--green);
  color: #000;
  border: none;
  padding: 0.45rem 1rem;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  border-radius: 3px;
  text-decoration: none;
  transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.85; }

.mobile-nav {
  display: none;
  position: relative;
  margin-left: auto;
}
.mobile-nav summary {
  list-style: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.1rem 0.2rem;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 1.8rem;
  font-weight: 400;
  line-height: 1;
  cursor: pointer;
}
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav summary:hover { color: var(--text-bright); }
.mobile-nav summary:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 4px;
  border-radius: 4px;
}
.mobile-nav[open] summary { color: var(--green); }
.mobile-nav-menu {
  position: absolute;
  top: calc(100% + 0.75rem);
  right: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  width: min(260px, calc(100vw - 2rem));
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(10,10,10,0.97);
  box-shadow: 0 18px 40px rgba(0,0,0,0.35);
}
.mobile-nav-menu a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.45rem 0.5rem;
  border-radius: 3px;
  transition: color 0.15s, background 0.15s;
}
.mobile-nav-menu a:hover, .mobile-nav-menu a.active {
  color: var(--green);
  background: var(--bg2);
}
.mobile-nav-menu .nav-cta {
  display: block;
  margin-top: 0.35rem;
  text-align: center;
  color: #000;
  padding: 0.6rem 0.9rem;
}
.mobile-nav-menu a svg { display: block; }

footer {
  padding: 2rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
}
footer a { color: var(--text-dim); text-decoration: none; }
footer a:hover { color: var(--green); }

@media (max-width: 600px) {
  .site-nav { padding: 0 1rem; }
  .nav-links-desktop, .nav-cta-desktop { display: none; }
  .mobile-nav { display: block; }
}