/* CSS for Crypto Acolytes Donation Page - neon purple hacker-night with grid background and frosted glass */

/* Theme and reset */
:root{
  --bg: #0a0a0f;
  --panel: rgba(8, 8, 20, 0.75);
  --text: #e9e2ff;
  --muted: #cbd5e1;
  --purple: #a78bfa;
  --grid: rgba(124, 90, 255, 0.25);
  --border: rgba(255,255,255,.25);
  --cta: rgba(124, 90, 255, .25);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  /* black & dark grey grid paper with neon purple accents */
  background-image:
    linear-gradient(rgba(124,90,255,0.25) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,90,255,0.25) 1px, transparent 1px);
  background-size: 24px 24px, 24px 24px;
  background-position: 0 0, 0 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}
a { color: inherit; text-decoration: none; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 0.75rem 1rem;
  text-align: center;
  background: rgba(0,0,0,.25);
  border-bottom: 1px solid rgba(255,255,255,.25);
}
.brand {
  display: inline-block;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: #dcd0ff;
  text-shadow: 0 0 8px rgba(124,90,255,.8);
  font-size: 0.95rem;
}

/* Main content */
main { display: block; }

/* Hero (mobile-first) */
.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  place-items: center;
  padding: 2rem 1rem;
  max-width: 1100px;
  margin: 0 auto;
}
.hero-content {
  padding: 1.75rem;
  border-radius: 14px;
  background: rgba(6,6,12,0.72);
  border: 1px solid rgba(124,90,255,.5);
  backdrop-filter: blur(6px) saturate(1.25);
  -webkit-backdrop-filter: blur(6px) saturate(1.25);
}
.hero-content h1 {
  font-size: 1.6rem;
  line-height: 1.25;
  margin: 0 0 .5rem;
}
.hero-content h2 {
  font-size: 1rem;
  color: #e9e0ff;
  font-weight: 500;
  margin: 0 0 0.9rem;
}
.telegram-note {
  font-size: .95rem;
  color: #efe6ff;
}
.telegram-note a {
  color: var(--purple);
  text-decoration: none;
  border-bottom: 1px solid rgba(124,90,255,.4);
}
.telegram-note a:hover { text-decoration: underline; }

/* QR centerpiece */
.hero-qr {
  display: flex;
  justify-content: center;
  width: 100%;
}
.hero-qr img {
  width: 260px;
  max-width: 90%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 12px 28px rgba(0,0,0,.55);
  border: 1px solid rgba(255,255,255,.25);
}

/* Footer */
footer {
  padding: 1.75rem 1rem;
  text-align: center;
  color: #f0eaff;
  border-top: 1px solid rgba(255,255,255,.25);
  background: rgba(0,0,0,.25);
}
.advertisement a {
  color: #fff;
  background: rgba(124,90,255,.25);
  padding: .4rem .65rem;
  border-radius: 999px;
  border: 1px solid rgba(124,90,255,.65);
  text-decoration: none;
}
.advertisement a:hover { text-decoration: underline; }
.closing-note { margin-top: .25rem; }

/* CTA-like styling for anchors (button-like) */
a.btn,
.hero-content a,
footer a {
  display: inline-block;
  padding: .55rem .9rem;
  border-radius: 999px;
  border: 1px solid rgba(124,90,255,.75);
  color: #fff;
  background: rgba(124,90,255,.22);
  text-decoration: none;
  font-weight: 600;
  transition: transform .2s ease, background .2s ease;
}
a.btn:hover, .hero-content a:hover, footer a:hover {
  background: rgba(124,90,255,.32);
  transform: translateY(-1px);
}
a.btn:focus-visible, .hero-content a:focus-visible, footer a:focus-visible {
  outline: 3px solid #c9aaff;
  outline-offset: 2px;
  border-radius: 999px;
}

/* Desktop two-column layout for larger screens */
@media (min-width: 900px) {
  .hero {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3rem;
    padding: 3rem 1.75rem;
    align-items: center;
  }
  .hero-content { padding: 2rem; }
  .hero-content h1 { font-size: 2rem; }
  .hero-content h2 { font-size: 1.125rem; }
  .hero-qr { justify-content: center; align-items: center; }
  .hero-qr img { width: 420px; }
}