/* Neon hacker night theme - single stylesheet (mobile-first) */
:root{
  --bg: #000;
  --card: rgba(0,0,0,.55);
  --fg: #eafff0;
  --muted: #bafbd1;
  --neon: #39ff14;
  --neon-soft: rgba(57,255,20,.25);
}
*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; margin: 0; }
html { scroll-behavior: smooth; }

body {
  background: #000;
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--neon); text-decoration: none; }
a:focus-visible, button:focus-visible, [tabindex]:focus { outline: 2px solid var(--neon); outline-offset: 2px; }

.site-header {
  position: sticky; top: 0; width: 100%; z-index: 10;
  background: rgba(0,0,0,.65);
  border-bottom: 1px solid rgba(57,255,20,.4);
  padding: 12px 16px;
  display: flex; justify-content: center; align-items: center;
  backdrop-filter: blur(2px); -webkit-backdrop-filter: blur(2px);
}
.brand { font-weight: 800; color: #baffbd; text-shadow: 0 0 8px rgba(57,255,20,.6); }

main { display: block; }

/* Hero section with frosted glass panels */
.hero { padding: 2rem 1rem; display: grid; place-items: center; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; width: 100%; max-width: 1100px; align-items: center; }
.hero-copy h1 { font-size: 1.75rem; margin: 0 0 .5rem; color: #d7ffde; text-shadow: 0 0 8px rgba(57,255,20,.6); }
.subhead { color: #d5ffd8; font-size: 1rem; opacity: .95; }
.cta { display: inline-block; padding: .75rem 1.2rem; border-radius: 999px;
  border: 1px solid rgba(57,255,20,.7); background: rgba(57,255,20,.15);
  color: #eafff0; font-weight: 700; margin-top: .75rem;
  box-shadow: 0 0 12px rgba(57,255,20,.6);
}
.cta:hover { background: rgba(57,255,20,.25); transform: translateY(-1px); }

.hero-visual-wrap {
  display: flex; justify-content: center; align-items: center;
  padding: 1rem; border-radius: 14px;
  background: rgba(0,0,0,.55); border: 1px solid rgba(57,255,20,.25);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.hero-visual { width: 100%; height: auto; max-width: 680px; border-radius: 12px; display: block; }

/* Section: Features */
.features { padding: 2rem 1rem; }
.features h2 { text-align: center; font-size: 1.25rem; color: #baffd1; margin-bottom: .75rem; }
.features-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; width: 100%; max-width: 1000px; margin: 0 auto; }
.feature { background: rgba(0,0,0,.55);
  border: 1px solid rgba(57,255,20,.25);
  padding: 1rem; border-radius: 12px; min-height: 100px;
}
.feature h3 { color: #eaffd9; margin-bottom: .25rem; }

/* Section: Testimonials */
.testimonials { padding: 2rem 1rem; }
.testimonials h2 { text-align: center; font-size: 1.25rem; color: #baffd1; }
.testimonials-grid { display: grid; grid-template-columns: 1fr; gap: .75rem; width: 100%; max-width: 900px; margin: 0 auto; }
.testimonial { background: rgba(0,0,0,.55); border: 1px solid rgba(57,255,20,.25);
  padding: 1rem; border-radius: 12px; }
.testimonial footer { font-size: .9rem; color: #caffd2; margin-top: .25rem; }
.username { font-weight: 700; color: #d9ffd0; }

/* Footer advertisement and credits */
.ad { padding: 1rem; text-align: center; }
.ad-link { display: inline-block; padding: .65rem 1rem; border-radius: 999px;
  border: 1px solid rgba(57,255,20,.7); color: #d9ffd0; background: rgba(57,255,20,.12);
  transition: transform .2s ease;
}
.ad-link:hover { transform: translateY(-1px); }

footer { padding: 1rem; text-align: center; color: #a5ffd0; border-top: 1px solid rgba(57,255,20,.15); }

/* Desktop / large layout tweaks for a distinctive grid feel */
@media (min-width: 768px){
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; }
  .hero-copy h1 { font-size: 2rem; }
  .features-grid { grid-template-columns: repeat(3, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(3, 1fr); }
}