/* ========================================================================
   DSP-SPACE-ARCADE — shared synthwave styles
   No CDN, no images, no python. Vanilla CSS + inline SVG only.
   ======================================================================== */

:root {
  --bg-0: #07061a;
  --bg-1: #120b3a;
  --neon-pink: #ff2e9a;
  --neon-cyan: #33eaff;
  --neon-orange: #ff9d00;
  --neon-lime: #a3ff4f;
  --neon-purple: #7a3cff;
  --ink: #f7f7ff;
  --panel: rgba(10, 8, 30, 0.72);
  --panel-edge: rgba(51, 234, 255, 0.22);
  --glow-pink: 0 0 18px rgba(255, 46, 154, 0.8), 0 0 42px rgba(255, 46, 154, 0.35);
  --glow-cyan: 0 0 18px rgba(51, 234, 255, 0.8), 0 0 42px rgba(51, 234, 255, 0.35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg-0);
  color: var(--ink);
  font-family: 'Courier New', 'Courier', ui-monospace, SFMono-Regular, monospace;
  -webkit-font-smoothing: antialiased;
}

body { position: relative; overflow-x: hidden; }

/* ambient synthwave grid floor */
body::before {
  content: "";
  position: fixed;
  left: 0; right: 0; bottom: 0;
  height: 46vh;
  perspective: 600px;
  background:
    linear-gradient(to top, rgba(255,46,154,0.28), transparent 70%);
  z-index: -3;
}
body::after {
  content: "";
  position: fixed;
  left: 0; right: 0; bottom: 0;
  height: 46vh;
  transform: perspective(600px) rotateX(62deg);
  transform-origin: 50% 100%;
  background-image:
    linear-gradient(var(--neon-pink) 1px, transparent 1px),
    linear-gradient(90deg, var(--neon-pink) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.35;
  animation: gridmove 1.6s linear infinite;
  z-index: -2;
  pointer-events: none;
}
@keyframes gridmove { from { background-position: 0 0; } to { background-position: 0 44px; } }

/* sun */
.sun {
  position: fixed; top: 22%; left: 50%;
  width: 260px; height: 260px;
  transform: translateX(-50%);
  z-index: -1;
  border-radius: 50%;
  background: linear-gradient(#ffd84d, #ff9d00 45%, #ff2e9a 80%, #7a3cff);
  box-shadow: var(--glow-pink);
  -webkit-filter: blur(1px);
}
.sun::after {
  content: "";
  position: absolute; left: 0; right: 0; top: 40%; bottom: 0;
  background: repeating-linear-gradient(transparent 0 6px, rgba(7,6,26,0.8) 6px 10px);
}
@keyframes sunpulse { 0% { box-shadow: var(--glow-pink); } 100% { box-shadow: 0 0 30px rgba(255,46,154,0.9), 0 0 90px rgba(255,46,154,0.5); } }
.sun { animation: sunpulse 3s ease-in-out infinite; }

/* header */
header {
  text-align: center;
  padding: 46px 20px 20px;
  position: relative;
}
header .eyebrow {
  letter-spacing: 0.45em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  margin-bottom: 6px;
}
header h1 {
  font-size: clamp(2.2rem, 7vw, 5rem);
  margin: 0 0 4px;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: linear-gradient(90deg, #33eaff, #ff2e9a, #ff9d00);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: none;
}
header h1::before {
  content: "";
  display: block;
  width: min(70vw, 560px);
  height: 4px;
  margin: 14px auto 0;
  background: linear-gradient(90deg, transparent, var(--neon-cyan) 20%, var(--neon-pink) 50%, var(--neon-orange) 80%, transparent);
  box-shadow: 0 0 22px rgba(255,46,154,0.7);
}
header .tagline {
  margin: 16px auto 0;
  max-width: 640px;
  line-height: 1.6;
  color: rgba(247,247,255,0.78);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

/* card grid */
.grid {
  max-width: 1080px;
  margin: 26px auto 0;
  padding: 0 22px 90px;
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-radius: 14px;
  overflow: hidden;
  background-image:
    radial-gradient(circle at 50% -20%, rgba(255,46,154,0.22), transparent 55%),
    repeating-linear-gradient(90deg, rgba(255,247,255,0.03) 0 2px, transparent 2px 4px);
  box-shadow: 0 0 0 1px rgba(51,234,255,0.12) inset, 0 18px 50px rgba(0,0,0,0.55);
  transition: transform .25s ease, box-shadow .25s ease;
  cursor: pointer;
}
.card:hover, .card:focus-visible {
  transform: translateY(-8px);
  box-shadow: 0 0 0 1px var(--panel-edge) inset,
    0 24px 60px rgba(0,0,0,0.6),
    0 0 28px rgba(51,234,255,0.35);
}
.card:hover .thumb svg .scan { animation: scan 1.4s linear infinite; }

.thumb { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: linear-gradient(var(--bg-1), var(--bg-0)); }
.thumb svg { width: 100%; height: 100%; display: block; }
.thumb .scan { animation: scan 3s linear infinite; }
@keyframes scan { from { transform: translateY(-100%); } to { transform: translateY(100%); } }
.thumb .vignette {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 40%, transparent 55%, rgba(7,6,26,0.7) 100%);
  pointer-events: none;
}
.thumb .crt {
  content: "";
  position: absolute; inset: 0;
  background: repeating-linear-gradient(transparent 0 2px, rgba(0,0,0,0.18) 2px 3px);
  pointer-events: none;
}

.card .body { padding: 18px 20px 20px; }
.card .kicker {
  letter-spacing: 0.3em; text-transform: uppercase;
  font-size: 0.7rem;
  color: var(--neon-lime);
  text-shadow: 0 0 10px rgba(163,255,79,0.8);
  margin-bottom: 4px;
}
.card h2 {
  font-size: 1.35rem; margin: 0 0 6px;
  color: var(--ink);
  text-shadow: var(--glow-cyan);
  letter-spacing: 0.03em;
}
.card p {
  margin: 0 0 12px; line-height: 1.55;
  color: rgba(247,247,255,0.75);
  font-size: 0.9rem;
}
.card .keys {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin: 8px 0 12px;
}
.card .key {
  font-size: 0.72rem;
  padding: 3px 8px;
  border: 1px solid var(--panel-edge);
  border-radius: 6px;
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  background: rgba(51,234,255,0.08);
}

.cta {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: #07061a;
  background: linear-gradient(90deg, #33eaff, #ff2e9a);
  padding: 10px 20px;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: var(--glow-cyan);
}
.cta::after { content: "→"; font-size: 1.1em; }
.cta:hover { filter: brightness(1.12); }

/* footer */
footer {
  max-width: 1080px; margin: 0 auto; padding: 0 22px 40px;
  text-align: center;
  border-top: 1px solid var(--panel-edge);
}
footer p { font-size: 0.85rem; color: rgba(247,247,255,0.6); line-height: 1.7; }
footer .signature {
  margin-top: 8px;
  font-size: 0.95rem;
  color: var(--neon-orange);
  text-shadow: var(--glow-pink);
  letter-spacing: 0.08em;
}

/* ---- game page ---- */
.game-page { height: 100%; margin: 0; overflow: hidden; background: #07061a; }
.game-page canvas {
  display: block;
  width: 100vw; height: 100vh;
}
.game-page .chrome {
  position: fixed; top: 12px; left: 16px; right: 16px;
  font-size: 0.8rem;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: rgba(51,234,255,0.7);
  text-shadow: var(--glow-cyan);
  z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  pointer-events: none;
}
.game-page .chrome .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--neon-lime);
  box-shadow: 0 0 10px var(--neon-lime);
  animation: blink 1.2s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0.2; } }

@media (max-width: 640px) {
  header { padding-top: 30px; }
  .sun { width: 200px; height: 200px; top: 18%; }
  footer p { font-size: 0.8rem; }
}