/* navy parchment background with blue hacker vibe and frosted glass */

/* Color tokens */
:root{
  --bg: #0b1020;           /* navy base */
  --parchment: #f5e6cb;    /* beige parchment accent for content */
  --text: #eaf6ff;
  --muted: #cbb69a;
  --glass: rgba(255,255,255,0.08);
  --glass-strong: rgba(255,255,255,0.18);
  --shadow: rgba(0,0,0,.5);
  --focus: rgba(0, 170, 255, 0.95);
  --cta-start: #3aa9ff;
  --cta-end: #0066ff;
}

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

html, body { height: 100%; }

/* Page base */
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: var(--text);
  background: var(--bg);
  /* soft navy parchment feel with subtle blue stripes */
  background-image:
    linear-gradient(135deg, rgba(58,169,255,.15) 0 25%, transparent 25%),
    linear-gradient(315deg, rgba(58,169,255,.15) 25%, transparent 25%);
  background-size: 40px 40px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.4;
  position: relative;
  overflow-x: hidden;
  isolation: isolate;
}

/* Subtle blue glow overlay for hacker vibe */
:before {
  content: "";
  position: fixed;
  inset: -20vmax;
  background: radial-gradient(circle at 25% 25%, rgba(0, 170, 255, 0.15), transparent 40%),
              radial-gradient(circle at 75% 60%, rgba(0, 255, 255, 0.15), transparent 40%);
  mix-blend-mode: screen;
  opacity: 0.85;
  pointer-events: none;
  z-index: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: center;
  background: rgba(0, 0, 0, 0.38);
  border-bottom: 1px solid rgba(58, 139, 255, 0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.brand {
  font-weight: 900;
  color: #e5f3ff;
  text-shadow: 0 0 14px rgba(58, 139, 255, 0.9);
  letter-spacing: .5px;
  font-size: 1.05rem;
}

/* Main container */
main { width: 100%; flex: 1 1 auto; }

/* Hero layout: mobile-first two-column grid on larger screens */
.hero { padding: 2rem 1rem; display: flex; justify-content: center; }
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: center;
  width: 100%;
  max-width: 1100px;
  padding: 0 1rem;
}
.hero-image {
  width: 100%;
  height: auto;
  border-radius: 14px;
  display: block;
  border: 1px solid rgba(255,255,255,.22);
  box-shadow: 0 14px 40px rgba(0,0,0,.5);
  image-rendering: crisp-edges;
}
.hero-content {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  padding: 1.25rem;
  border-radius: 14px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.22);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--text);
}
.hero-content h1 {
  font-size: 1.9rem;
  line-height: 1.15;
  margin: 0;
  color: #fff;
  text-shadow: 0 0 8px rgba(0, 0, 0, 0.25);
}
.hero-content h2 {
  font-size: .95rem;
  font-weight: 500;
  color: #e8f2ff;
  margin: 0;
  opacity: .95;
}
.cta {
  display: inline-block;
  align-self: flex-start;
  padding: 0.95rem 1.25rem;
  border-radius: 999px;
  font-weight: 900;
  text-decoration: none;
  color: #0b0b04;
  background: linear-gradient(135deg, var(--cta-start) 0%, var(--cta-end) 60%, #2a6cff 100%);
  box-shadow: 0 6px 16px rgba(0, 140, 255, 0.6);
  border: 1px solid rgba(0,0,0,.08);
  transition: transform .2s ease, box-shadow .2s ease;
}
.cta:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(0, 140, 255, 0.8); }
.cta:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

/* Desktop two-column layout */
@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; gap: 2rem; }
  .hero-content { padding: 2rem; }
  .hero-content h1 { font-size: 2.25rem; }
  .hero-content h2 { font-size: 1.02rem; }
  .hero-image { border-radius: 16px; }
}

/* Footer */
.site-footer {
  padding: 1rem;
  text-align: center;
  font-size: 0.92rem;
  color: #e9e0d8;
  background: rgba(0,0,0,.5);
  border-top: 1px solid rgba(58,139,255,0.25);
}
.advertisement {
  color: #ffd59a;
  margin-bottom: .25rem;
}
.advertisement a {
  color: #ffd27a;
  font-weight: 700;
  text-decoration: none;
}
.advertisement a:hover { text-decoration: underline; }
.thank-you { margin: .25rem 0; color: #f5efe0; }

/* Focus ring for accessibility on links */
a:focus-visible {
  outline: 3px solid rgba(0, 170, 255, 0.95);
  outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .cta { transition: none; }
  .cta:hover { transform: none; }
}