/* white grid paper background with blue hacker vibe
   frosted glass panels and future cyberpunk styling
*/
:root {
  --bg: #ffffff;
  --grid-blue: rgba(0, 120, 255, 0.25);
  --grid-blue-dark: rgba(0, 120, 255, 0.45);
  --blue: #1e90ff;
  --blue-dark: #0b66d6;
  --text: #0b1b2a;
  --muted: #5c7bd9;
  --glass: rgba(255, 255, 255, 0.85);
  --radius: 14px;
  --shadow: 0 12px 28px rgba(0,0,0,.22);
}

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

html, body { height: 100%; }

/* Page base: white with a light blue grid paper feel */
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial;
  color: var(--text);
  background: #fff;
  background-image:
    linear-gradient(to right, var(--grid-blue) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-blue) 1px, transparent 1px);
  background-size: 24px 24px;
  position: relative;
  isolation: isolate;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body::before {
  content:"";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 60% 20%, rgba(0, 180, 255, 0.14) 0%, transparent 40%),
    radial-gradient(circle at 20% 80%, rgba(0, 180, 255, 0.10) 0%, transparent 40%);
  mix-blend-mode: screen;
  pointer-events: none;
  animation: glow 12s ease-in-out infinite;
  z-index: 0;
}
@keyframes glow {
  0%,100% { opacity: 0.85; }
  50% { opacity: 1; }
}

a { color: inherit; text-decoration: none; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  padding: 0.75rem 1rem;
  background: rgba(8, 14, 28, 0.85);
  border-bottom: 1px solid rgba(0, 120, 255, 0.25);
  backdrop-filter: blur(6px);
}
.brand {
  font-weight: 900;
  color: #eaf6ff;
  text-shadow: 0 0 12px rgba(0, 120, 255, 0.8);
  letter-spacing: .4px;
  display: inline-block;
  font-size: 1.05rem;
}

/* Hero layout (mobile-first) */
.hero { padding: 1rem; position: relative; z-index: 1; }
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
  align-items: center;
}
.hero-media { width: 100%; display: flex; justify-content: center; }
.hero-media img {
  width: min(92vw, 720px);
  height: auto;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,.15);
  box-shadow: 0 18px 40px rgba(0, 120, 255, 0.25);
}
.hero-content {
  width: 100%;
  max-width: 640px;
  padding: 1.25rem 1.5rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(0, 120, 255, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--text);
  text-align: left;
  box-shadow: 0 12px 28px rgba(0,0,0,.22);
}
.hero-content h1 {
  font-size: clamp(1.6rem, 5vw, 2.8rem);
  margin: 0 0 .5rem;
  color: #0b1a2b;
}
.subhead {
  color: #3b5a9e;
  font-size: 1rem;
  line-height: 1.5;
  margin: 0 0 1rem;
}
.cta {
  display: inline-block;
  padding: .92rem 1.25rem;
  border-radius: 10px;
  font-weight: 700;
  color: #041a2a;
  background: linear-gradient(135deg, #00e5ff 0%, #2b9cff 100%);
  border: 2px solid rgba(0, 170, 255, 0.95);
  box-shadow: 0 6px 16px rgba(0,0,0,.25);
  font-size: 1.02rem;
  transition: transform .15s ease, box-shadow .15s ease;
}
.cta:hover { transform: translateY(-1px); box-shadow: 0 10px 20px rgba(0,0,0,.35); }
.cta:focus-visible { outline: 3px solid #00e5ff; outline-offset: 2px; }

/* Footer */
.site-footer { padding: 1rem; text-align: center; background: rgba(8, 12, 20, 0.85); border-top: 1px solid rgba(0, 120, 255, 0.4); color: var(--text); }
.footer-ad {
  display: inline-block;
  padding: .6rem .9rem;
  margin: 0 .25rem 0.5rem;
  font-size: .95rem;
  color: var(--text);
  background: rgba(0,0,0,.25);
  border-radius: 8px;
  border: 1px solid rgba(0, 120, 255, 0.6);
}
.thank-you { font-size: .95rem; margin-top: .25rem; color: #d7ffd9; }

/* Desktop two-column layout on larger screens */
@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
    padding: 2rem 4rem;
    align-items: center;
  }
  .subhead { font-size: 1.05rem; }
  .cta { font-size: 1.05rem; padding: 1rem 1.4rem; }
}