/* Solana Acolytes Donation Page - CSS (mobile-first, single stylesheet) */
/* Black/dark grey grid paper with turquoise hacker-night theme and frosted glass UI */

:root{
  --bg: #0a0a0f;
  --grid: rgba(0, 255, 230, 0.25);  /* turquoise grid lines */
  --panel: rgba(8, 0, 40, 0.75);
  --text: #eaffff;
  --brand: #2ff0e0;
  --cta: #1bdad6;
  --cta-2: rgba(0, 210, 210, 0.95);
  --glow: 0 8px 28px rgba(0,0,0,.5);
  --radius: 14px;
}
*,
*::before,
*::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  background: var(--bg);
  /* Grid paper backdrop with turquoise lines */
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 40px 40px;
  background-attachment: fixed;
  overflow-x: hidden;
}

/* Frosted glass utility (applied to sections) */
.glass {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: var(--radius);
  box-shadow: var(--glow);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.55);
  border-bottom: 1px solid rgba(0, 255, 230, 0.25);
}
.brand-text {
  font-weight: 700;
  letter-spacing: .5px;
  color: var(--brand);
  text-transform: uppercase;
  font-size: 1rem;
}

/* Main content area */
main {
  padding: 12px;
  display: flex;
  justify-content: center;
}

/* Hero card with QR centerpiece */
.hero {
  display: grid;
  place-items: center;
  text-align: center;
  padding: 18px;
  gap: 20px;
  width: 100%;
  max-width: 900px;
  border-radius: 18px;
  background: rgba(8, 0, 40, 0.75);
  border: 1px solid rgba(0, 255, 230, 0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 12px 40px rgba(0,0,0,.55);
  margin: 6px auto;
}

/* QR area */
.qr-area { width: 100%; display: grid; place-items: center; padding: 6px; }
.qr-code {
  width: 66vmin;
  max-width: 520px;
  height: auto;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  padding: 8px;
  background: rgba(0,0,0,.25);
  box-shadow: 0 12px 40px rgba(0,0,0,.6);
}

/* Headings */
.hero h1 { margin: 0; font-size: 1.75rem; color: #eaffff; }
.hero h2 { margin: 0; font-size: 1.15rem; color: #d0f7ff; }

/* Telegram link styled as CTA (via anchor) */
.telegram-link { font-size: 0.95rem; color: #eaffff; margin: 6px 0 0; }
.telegram-link a {
  display: inline-block;
  margin-left: 8px;
  padding: 0.5em 1.0em;
  border-radius: 999px;
  background: rgba(0, 255, 255, 0.9);
  color: #041414;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,.5);
}
.telegram-link a:hover, .telegram-link a:focus {
  outline: 2px solid #d9fbff;
  outline-offset: 2px;
}

/* Footer: product advertisement + gratitude text */
.site-footer {
  padding: 14px;
  text-align: center;
  color: #eaffff;
  background: rgba(0, 0, 0, 0.34);
  border-top: 1px solid rgba(0, 255, 230, 0.25);
}
.footer-ad {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 6px 0;
}
.footer-ad a {
  color: #eaffff;
  text-decoration: none;
  border-bottom: 1px solid rgba(0,255,230,.6);
  padding-bottom: 2px;
}
.footer-ad a:hover, .footer-ad a:focus {
  outline: 2px solid #bfefff;
  outline-offset: 2px;
  border-bottom: none;
}
.gratitude { margin-top: 6px; font-size: 0.95rem; }

/* Focus styles for accessibility */
:focus-visible {
  outline: 2px solid #7bd7ff;
  outline-offset: 2px;
  border-radius: 6px;
}

/* Responsive tweaks (mobile-first) */
@media (min-width: 640px) {
  .hero { padding: 28px; gap: 22px; border-radius: 22px; }
  .hero h1 { font-size: 2.0rem; }
  .hero h2 { font-size: 1.25rem; }
  .qr-code { width: 58vmin; }
  .brand-text { font-size: 1.05rem; }
}
@media (min-width: 1024px) {
  .hero { padding: 40px; }
  .hero h1 { font-size: 2.6rem; }
  .hero h2 { font-size: 1.4rem; }
  .qr-code { width: 50vmin; }
}