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

:root {
  --bg1: #00131a;
  --bg2: #00324a;
  --cyan: #00e6ff;
  --cyanSoft: rgba(0, 230, 255, 0.4);
  --text: #eaffff;
  --glass: rgba(255, 255, 255, 0.08);
  --border: rgba(0, 255, 255, 0.25);
}

html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial;
  color: var(--text);
  background: linear-gradient(135deg, var(--bg1) 0%, var(--bg2) 60%, #00e6ff 100%);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Light reset for layout feel */
* { box-sizing: border-box; }

/* Hero-like header feel with frosted glass effect */
header {
  max-width: 980px;
  margin: 1rem auto;
  padding: 1.25rem;
  border-radius: 12px;
  background: rgba(5, 20, 40, 0.6);
  border: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(0, 255, 255, 0.15);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

header h1 {
  margin: 0 0 0.25rem;
  font-size: 2rem;
  letter-spacing: 0.5px;
  color: #eaffff;
  text-shadow: 0 0 6px rgba(0, 255, 255, 0.8);
}

header .meta {
  color: rgba(230, 255, 255, 0.85);
  font-size: 0.9rem;
}

/* Content area */
main { padding: 0 1rem; }

/* Featured image keeps the vibe */
.featured-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  margin: 0.25rem 0 1rem;
  border: 1px solid rgba(0, 255, 255, 0.25);
  box-shadow: 0 6px 16px rgba(0, 255, 255, 0.25);
}

/* Frosted glass article region for the long text */
article {
  max-width: 980px;
  margin: 0 auto;
  padding: 1rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(0, 255, 255, 0.25);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

p {
  margin: 0 0 1rem;
  color: rgba(230, 255, 255, 0.92);
}

/* Special first-letter styling for p.content as required */
p.content::first-letter {
  font-weight: 700;
  font-size: 2em;
  color: #fff;
}

/* Footer / CTA area */
footer {
  max-width: 980px;
  margin: 1.5rem auto 2rem;
  padding: 0 1rem;
  text-align: center;
  color: #bfeaff;
}

.product-ad {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.75rem;
  border-radius: 10px;
  background: rgba(0, 255, 255, 0.08);
  border: 1px solid rgba(0, 255, 255, 0.25);
  margin-bottom: 0.5rem;
}

.product-ad h3 {
  margin: 0;
  font-size: 1rem;
}

.product-ad a {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  background: rgba(0, 255, 255, 0.28);
  color: #002b2e;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid rgba(0, 255, 255, 0.6);
  transition: transform 0.2s ease;
}
.product-ad a p {
  margin: 0;
}

.product-ad a:hover { transform: translateY(-1px); }
.product-ad a:focus-visible { outline: 3px solid #00f0ff; outline-offset: 2px; }

/* General links with hacker glow feel */
a {
  color: #b9fbff;
  text-decoration: none;
}
a:hover { color: #eaffff; text-decoration: none; }

/* Focus accessibility for all focusable elements */
:focus-visible {
  outline: 3px solid #00f0ff;
  outline-offset: 2px;
  border-radius: 4px;
}

/* Responsive tweaks (mobile-first) */
@media (min-width: 640px) {
  header { padding: 1.5rem; }
  header h1 { font-size: 2.25rem; }
  article { padding: 1.25rem; }
  .product-ad { justify-content: center; }
}
@media (min-width: 1024px) {
  body { font-size: 1.05rem; }
  header, article, footer { padding: 1.25rem; }
}