/* Section: Base tokens */
:root {
  --bg: #0a0f14;
  --bg-2: #0a0f14;
  --text: #eaffff;
  --muted: #b9ffd6;
  --accent: #39ff87;      /* neon green */
  --accent-2: #ff2ea4;     /* hot pink */
  --surface: rgba(255, 255, 255, 0.08);
  --surface-2: rgba(255, 255, 255, 0.14);
  --glass-border: rgba(255, 255, 255, 0.25);
  --shadow: 0 8px 24px rgba(0,0,0,.25);
  --radius: 14px;
  --focus: 2px solid var(--accent);
  --focus-offset: 2px;
}

/* Section: Reset / base layout */
* { box-sizing: border-box; }
html, body { height: 100%; }
html { font-size: 16px; }
body {
  margin: 0;
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  line-height: 1.55;
  background-color: var(--bg);
  /* Layered background: gradient + scanlines + subtle glow */
  background-image:
    linear-gradient(135deg, rgba(0,255,135,.15), rgba(255,0,180,.15) 60%, rgba(0,0,0,.15)),
    repeating-linear-gradient(to bottom, rgba(255,255,255,.04) 0 1px, transparent 1px 2px);
  background-blend-mode: overlay, overlay;
  min-height: 100%;
  position: relative;
  isolation: isolate;
}
body::before {
  /* Energy wave accents overlay (no assets) */
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(0,255,135,.25), transparent 40%),
    radial-gradient(circle at 80% 15%, rgba(255,0,180,.25), transparent 40%);
  mix-blend-mode: screen;
  opacity: 0.9;
  pointer-events: none;
  z-index: 0;
  filter: hue-rotate(-12deg);
}
main { position: relative; z-index: 1; }

/* Section: Container / Utilities */
.container {
  width: 100%;
  max-width: clamp(320px, 90vw, 1100px);
  margin-inline: auto;
  padding: 1rem;
}
.grid { display: grid; grid-gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--glass-border); border-radius: 12px; padding: 1rem; box-shadow: var(--shadow); }

/* Section: Glass panels (fallback if backdrop-filter unavailable) */
header, main, footer, aside {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius);
  padding: 1rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
}
@supports not (backdrop-filter: blur(12px)) {
  header, main, footer, aside {
    background: rgba(255, 255, 255, 0.14);
  }
}
header { margin: 1rem auto; max-width: 1000px; }
header h1 { font-size: clamp(1.75rem, 2.5vw + 1rem, 2.75rem); line-height: 1.05; margin: .25rem 0 .5rem; color: var(--text); }
nav a { color: var(--text); text-decoration: none; padding: .25rem .5rem; border-radius: 6px; }
nav a:hover, nav a:focus-visible { text-decoration: underline; outline: none; }

/* Section: Hero / content typography */
.main-hero { margin: 1rem auto 0; text-align: left; }
h2 { font-size: clamp(1.25rem, 0.8vw + 1rem, 1.5rem); margin: .25rem 0 0.5rem; color: var(--text); }
p { margin: .25rem 0 1rem; color: var(--muted); font-size: clamp(0.95rem, 0.8vw + 0.9rem, 1.05rem); }

/* Section: Image frame styling */
.image-frame {
  aspect-ratio: 16 / 9;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.28);
  background: #0b1117;
  display: block;
  padding: 4px;
  box-shadow: inset 0 0 12px rgba(0,255,120,.25), 0 6px 18px rgba(0,0,0,.25);
}
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 8px;
  filter: saturate(1.05);
  transition: transform .3s ease;
}
.image-frame:hover img { transform: scale(1.03); }

/* Section: Links / typography helpers for accessibility */
a, button, .btn, .cta {
  color: var(--accent-2);
  text-decoration: none;
  background: transparent;
  border: none;
  padding: .55rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  display: inline-block;
}
a:focus-visible, button:focus-visible, .btn:focus-visible, .cta:focus-visible {
  outline: var(--focus);
  outline-offset: var(--focus-offset);
}
a:hover, .btn:hover, .cta:hover { text-decoration: underline; color: var(--accent-2); }

/* Primary / Outline button styles */
.btn, .cta { background: var(--accent); color: #041b0a; font-weight: 600; }
.btn:hover { background: #34e29b; }
.btn:active { transform: translateY(1px); opacity: 0.95; }
.btn--outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--text);
}
.btn--outline:hover { background: rgba(57,255,135,.08); }

/* Section: Lists / utility classes */
ul { margin: 0; padding-left: 1.25rem; color: var(--muted); }
li { margin: .25rem 0; }

/* Section: Product ad / footer areas */
.product-ad {
  display: block;
  padding: .75rem;
  margin: .5rem 0;
  border-radius: 12px;
  text-align: center;
  background: linear-gradient(135deg, rgba(0,255,135,.16), rgba(255,0,180,.16));
  border: 1px solid rgba(255,255,255,.25);
}
.product-ad a { color: var(--text); text-decoration: none; display: block; }
.product-ad a:hover { text-decoration: underline; }

/* Footer content tweaks for balance against glass panels */
footer { margin: 1rem auto; max-width: 1000px; text-align: center; }

/* Section: Responsive layout helpers */
@media (min-width: 720px) {
  .container { padding: 1.25rem; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* Section: Print styles (basic readability) */
@media print {
  body { background: white; color: black; }
  header, main, footer { background: none; border: none; border-radius: 0; box-shadow: none; }
  a { text-decoration: underline; }
}