/* Navy gradient background with lime accents for a hacker vibe, frosted glass */
:root{
  --bg: #0a1022;
  --navy: #0b1a2b;
  --lime: #baff00;
  --lime-dark: #7cff00;
  --text: #eafff0;
  --glass: rgba(255,255,255,.12);
  --glass-border: rgba(255,255,255,.28);
  --cta-start: #aaff00;
  --cta-end: #4aff00;
  --shadow: 0 8px 28px rgba(0,0,0,.28);
}
*,
*::before,
*::after{ box-sizing: border-box; }

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, #06172b 0%, #0b1a2b 60%, #06172b 100%);
  min-height:100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}
body::before{
  content:"";
  position: fixed;
  inset: -20vmax;
  background: radial-gradient(circle at 20% 20%, rgba(176,255,0,.15), transparent 40%),
              radial-gradient(circle at 80% 60%, rgba(0,255,140,.15), transparent 40%);
  filter: blur(60px);
  z-index: -1;
  pointer-events: none;
}

/* Links */
a{ color: inherit; text-decoration: none; }

/* Header */
.site-header{
  position: sticky; top:0; z-index:30;
  padding:.75rem 1rem;
  display:flex; justify-content:center;
  background: rgba(2,12,20,.55);
  border-bottom:1px solid rgba(255,255,255,.15);
  backdrop-filter: saturate(1.2);
  -webkit-backdrop-filter: saturate(1.2);
}
.container{ width:100%; max-width:1100px; padding:0 1rem; }

.brand{
  display:inline-block;
  padding:.5rem 1rem;
  border-radius:999px;
  background: rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.28);
  font-weight:900;
  letter-spacing:.5px;
  font-size:.95rem;
  color:#eaffff;
  text-shadow:0 1px 2px rgba(0,0,0,.25);
}

/* Hero: mobile-first grid with image centerpiece; two-column on wide screens */
.hero{
  display:grid;
  grid-template-columns:1fr;
  gap:2rem;
  align-items:center;
  justify-items:center;
  padding:2rem 1rem 4rem;
}
.hero-media img{
  width: min(92vw, 760px);
  height:auto;
  display:block;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.25);
  box-shadow:0 28px 60px rgba(0,0,0,.4);
}
.hero-content{
  background: rgba(255,255,255,.12); /* frosted glass */
  border:1px solid rgba(255,255,255,.28);
  border-radius:16px;
  padding:1.75rem;
  width:90%;
  max-width:700px;
  text-align:left;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: var(--shadow);
}
.hero-content h1{
  font-size: clamp(2rem, 4vw + 1rem, 3.25rem);
  line-height:1.04;
  margin:0 0 .75rem;
  font-weight:900;
  color:#fff;
}
.hero-content .subhead{
  font-size: clamp(1rem, 2vw + .6rem, 1.5rem);
  color: rgba(255,255,255,.92);
  margin:0 0 1.25rem;
}
.cta{
  display:inline-block;
  padding:.95rem 1.25rem;
  font-weight:800;
  font-size:1.05rem;
  color:#041012;
  background: linear-gradient(135deg, var(--cta-start), var(--cta-end));
  border-radius:999px;
  border:0;
  text-decoration:none;
  box-shadow:0 8px 22px rgba(0,0,0,.25);
  transition: transform .15s ease, box-shadow .15s ease;
}
.cta:hover{ transform: translateY(-1px);
  box-shadow:0 12px 28px rgba(0,0,0,.35); }
.cta:focus-visible{ outline:3px solid #fff; outline-offset:2px; }

/* Large screens: side-by-side image and content with image as centerpiece */
@media (min-width: 900px){
  .hero{ grid-template-columns: 1.05fr 0.95fr; gap:3rem; padding:4rem 2rem 6rem; }
  .hero-content{ max-width:640px; }
}

/* Footer and advertisement */
.site-footer{
  padding:1.75rem 1rem;
  text-align:center;
  color:#eaf4ff;
  font-size:.95rem;
  border-top:1px solid rgba(255,255,255,.15);
  background: rgba(0,0,0,.18);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
.advert{ display:inline-block; margin-bottom:.5rem; }
.advert a{
  color:#ffd86b; font-weight:700; text-decoration:none;
  padding:.15rem .5rem; border-radius:4px;
  background: rgba(0,0,0,.25);
  border:1px solid rgba(255,255,255,.25);
}
@media (prefers-color-scheme: dark){
  .site-footer{ background: rgba(0,0,0,.25); }
}
@media (max-width:600px){
  .brand{ display:none; } /* compact header on small screens */
  .hero{ padding:1.5rem 1rem 3rem; }
  .hero-content{ padding:1.25rem; }
  .hero-content h1{ font-size: clamp(1.8rem, 4vw + 1rem, 2.8rem); }
  .cta{ width:100%; display:inline-block; text-align:center; }