/*  Green hacker theme with silver grid paper background and frosted glass */
/* Mobile-first, single stylesheet */

:root {
  --bg-green: #0a2a16;
  --bg-green-light: #1a7a3a;
  --grid-silver: rgba(255,255,255,.35);
  --text: #e8ffe8;
  --muted: #b8d8a8;
  --card: rgba(255,255,255,.25);
  --ring: rgba(0, 255, 120, .6);
  --radius: 14px;
  --shadow: 0 8px 28px rgba(0,0,0,.35);
  --cta-start: #7cff9e;
  --cta-end: #0f9e53;
}

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

html, body { height: 100%; margin: 0; }

/* Silver grid paper background with green tint on top */
body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--text);
  min-height: 100vh;
  background: linear-gradient(135deg, rgba(12, 32, 20, 0.9) 0%, rgba(2, 60, 20, 0.9) 100%);
  background-image:
    linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 24px 24px, 24px 24px;
  background-attachment: fixed;
  color-scheme: dark;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  overflow-x: hidden;
}

/* Subtle glow overlay to give depth */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 60% 20%, rgba(0,255,120,.08) 0 200px, transparent 200px),
              radial-gradient(circle at 20% 60%, rgba(0,255,120,.05) 0 200px, transparent 200px);
  z-index: 0;
  mix-blend-mode: screen;
  opacity: 0.8;
}

/* Header: frosted glass feel with green accent brand */
.site-header {
  position: sticky;
  top: 0;
  z-index: 2;
  text-align: center;
  padding: 0.65rem 1rem;
  background: rgba(0,0,0,.28);
  border-bottom: 1px solid rgba(0,255,120,.25);
  backdrop-filter: blur(6px);
}
.brand {
  font-weight: 800;
  color: #9bffb3;
  text-shadow: 0 0 8px rgba(0,255,120,.6);
}

/* Layout wrapper for content centering */
main {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  min-height: calc(100vh - 120px);
  position: relative;
  z-index: 1;
}

/* Frosted glass hero panel */
.hero {
  width: 100%;
  max-width: 940px;
  padding: 1.8rem;
  border-radius: var(--radius);
  border: 1px solid rgba(0,255,120,.45);
  background: rgba(0,0,0,.28);
  backdrop-filter: blur(8px) saturate(130%);
  -webkit-backdrop-filter: blur(8px) saturate(130%);
  box-shadow: var(--shadow);
  display: grid;
  gap: 1.25rem;
  text-align: center;
}

/* Title and subhead with green glow */
.hero h1 {
  font-size: clamp(1.8rem, 4vw + 1rem, 3rem);
  margin: 0;
  color: #eafff0;
  text-shadow: 0 0 12px rgba(0,255,120,.9);
}
.subhead {
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  color: var(--muted);
  margin: 0.25rem 0 0;
}

/* Centerpiece area: image + CTA using grid */
.hero-media {
  display: grid;
  gap: 20px;
  align-items: center;
  justify-items: center;
}
.hero-media img {
  width: min(92%, 720px);
  height: auto;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.35);
  background: rgba(0,0,0,.25);
  box-shadow: 0 14px 38px rgba(0,0,0,.6);
}
.cta {
  display: inline-block;
  padding: 14px 28px;
  font-size: 1.15rem;
  font-weight: 700;
  color: #0b140b;
  text-decoration: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--cta-start) 0%, var(--cta-end) 100%);
  border: 1px solid rgba(0,0,0,.25);
  box-shadow: 0 8px 22px rgba(0,0,0,.45);
  transition: transform .2s ease, box-shadow .2s ease;
}
.cta:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0,0,0,.55); }
.cta:focus { outline: none; box-shadow: 0 0 0 4px var(--ring); }

/* Footer: small ad + gratitude */
footer {
  padding: 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
  border-top: 1px solid rgba(0,0,0,.15);
  margin-top: 2rem;
  background: rgba(0,0,0,.25);
  backdrop-filter: blur(2px);
}
.footer-ad a {
  color: #8affb2;
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid rgba(0,0,0,.25);
  background: rgba(0,0,0,.18);
}
.gratitude { margin-top: 6px; }

/* Accessibility: focus styles for CTA */
a.cta:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(0, 255, 120, 0.65);
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* Desktop tweaks */
@media (min-width: 768px) {
  .hero { padding: 2rem; }
  .hero-media { gap: 28px; }
  .hero-media img { width: auto; max-width: 760px; }
}