/* Minimal reset and hacker-night theme for a Data Acolytes landing page */

/* Base reset and tokens */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }

/* Theme colors */
:root {
  --bg: #000;
  --fg: #e9e9e9;
  --muted: #c9c9c9;
  --accent: #ff1744;
  --glass: rgba(255,255,255,.08);
  --glass-border: rgba(255,255,255,.25);
  --shadow: 0 6px 22px rgba(0,0,0,.6);
}

/* Page background: cyberpunk hacker-night grid */
body {
  background: #000;
  color: var(--fg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system;
  line-height: 1.5;
  background-image:
    linear-gradient(rgba(255,0,0,.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,0,0,.15) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: 0 0, 0 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 3px solid #fff; outline-offset: 2px; }

/* Layout helper */
.container { width: min(92%, 1000px); margin: 0 auto; }

/* Header (frosted glass) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  background: rgba(0,0,0,.65);
  border-bottom: 1px solid rgba(255,255,255,.15);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: .75rem 0; }
.brand { font-weight: 800; color: #fff; text-shadow: 0 0 12px rgba(255,0,0,.9); }

/* Hero section: mobile-first; two-column on wide screens */
.hero { padding: 2.5rem 0; display: grid; gap: 1.8rem; align-items: center; }
.grid-two { grid-template-columns: 1fr; }
@media (min-width: 860px) {
  .grid-two { grid-template-columns: 1.05fr 0.95fr; }
}
.hero-copy h1 {
  font-size: clamp(2rem, 5vw, 2.8rem);
  margin: 0 0 .6rem;
  color: #fff;
  text-shadow: 0 0 12px rgba(255,0,0,.9);
}
.subhead { color: #ddd; line-height: 1.6; max-width: 60ch; }
.cta {
  display: inline-block;
  padding: .92rem 1.4rem;
  border-radius: 999px;
  font-weight: 800;
  background: linear-gradient(135deg, rgba(255,0,0,.95) 0%, rgba(255,68,68,.95) 60%, rgba(255,0,0,.95) 100%);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 6px 22px rgba(255,0,0,.6);
  transition: transform .2s ease, box-shadow .2s ease;
}
.cta:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(255,0,0,.9); }

/* Hero media image */
.hero-media img {
  width: 100%; height: auto;
  max-width: 560px;
  display: block;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.25);
  background: #111;
  box-shadow: 0 8px 28px rgba(0,0,0,.8);
}

/* Sections spacing */
.section { padding: 2.5rem 0; }

/* Features grid */
.features { padding: 2.5rem 0; }
.features h2 { font-size: clamp(1.25rem, 3vw, 1.75rem); color: #fff; margin-bottom: .75rem; }
.features-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.feature {
  padding: 1rem;
  border-radius: 12px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.22);
  backdrop-filter: blur(6px);
}
.feature h3 { margin: 0 0 .5rem 0; font-size: 1.05rem; color: #fff; }

/* Testimonials grid */
.testimonials { padding: 2rem 0; }
.testimonials h2 { font-size: clamp(1.15rem, 3vw, 1.6rem); color: #fff; margin-bottom: .75rem; }
.testimonials-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.testimonial { margin: 0; padding: .9rem 1rem; background: rgba(255,255,255,.08); border-left: 3px solid var(--accent); border-radius: 8px; color: #e9e9e9; }
.testimonial footer { color: #bbb; font-size: .9rem; margin-top: .25rem; }

/* Ad / footer content */
.site-footer { padding: 1.5rem 0 2rem; }
.ad { text-align: center; padding: 1rem; border-radius: 12px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.22);
  margin: 0 auto; width: min(680px, 90%); }
.ad-link {
  display: inline-block;
  font-weight: 700;
  color: #fff;
  padding: .5rem 1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(255,0,0,.95), rgba(255,0,0,.75));
}
.ad-link:hover { filter: brightness(1.05); }

/* Light mode tweaks */
@media (prefers-color-scheme: light) {
  :root { --fg: #111; --muted: #555; }
  body { background: #f7f7f7; color: #111; }
  .feature { background: rgba(0,0,0,.05); border: 1px solid rgba(0,0,0,.15); }
  .ad { background: rgba(255,255,255,.95); color: #111; border: 1px solid #ddd; }
  .cta { color: #fff; }
}
@media (min-width: 860px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(3, 1fr); }
}