/* ============================================================
   TRICKED ROCKS — shared theme
   Palette "Phosphor": ink-violet night, amber CPU, mint GPU.
   ============================================================ */

:root {
  --bg: #0b0a17;
  --bg-2: #110f22;
  --panel: #17142e;
  --panel-2: #1f1b3d;
  --line: #2d2856;
  --line-2: #3d3772;
  --ink: #ecebff;
  --muted: #9a95c4;
  --dim: #5f5a8f;

  --cpu: #ffab40;
  --cpu-deep: #b8620f;
  --gpu: #3df5c4;
  --gpu-deep: #11917b;
  --hot: #ff4d8d;
  --sky: #7b86ff;
  --gold: #ffe066;
  --bad: #ff5a5a;

  --font-pixel: "Silkscreen", "Courier New", monospace;
  --font-body: "Space Grotesk", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --px: 4px; /* the "pixel" unit for hard shadows & borders */
  --radius: 0;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

/* faint pixel grid + vignette */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(123,134,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(123,134,255,.045) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse at 50% 40%, #000 30%, transparent 85%);
}
/* scanlines */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 100;
  /* plain alpha instead of mix-blend-mode: blending a full-screen fixed layer
     forces a full re-composite every frame and halved the frame rate */
  background: repeating-linear-gradient(0deg, rgba(0,0,0,.14) 0 1px, transparent 1px 3px);
}

h1, h2, h3, .pixel {
  font-family: var(--font-pixel);
  font-weight: 400;
  letter-spacing: .02em;
  line-height: 1.15;
  margin: 0 0 .5em;
}
h1 { font-size: clamp(34px, 6vw, 72px); }
h2 { font-size: clamp(26px, 4vw, 44px); }
h3 { font-size: 20px; }

p { margin: 0 0 1em; }
a { color: var(--gpu); }
code, .mono { font-family: var(--font-mono); font-size: .9em; }

.cpu { color: var(--cpu); }
.gpu { color: var(--gpu); }
.hot { color: var(--hot); }
.gold { color: var(--gold); }
.muted { color: var(--muted); }

canvas.px, img.px { image-rendering: pixelated; image-rendering: crisp-edges; }

/* ---------- pixel buttons ---------- */
.btn {
  --c: var(--gpu);
  --c-deep: var(--gpu-deep);
  font-family: var(--font-pixel);
  font-size: 16px;
  color: #0b0a17;
  background: var(--c);
  border: 0;
  padding: 12px 20px 10px;
  cursor: pointer;
  box-shadow:
    0 var(--px) 0 0 var(--c-deep),
    var(--px) var(--px) 0 var(--px) rgba(0,0,0,.35);
  transform: translateY(0);
  transition: transform .06s, box-shadow .06s, filter .15s;
  user-select: none;
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.btn { touch-action: manipulation; -webkit-tap-highlight-color: transparent; } /* no double-tap zoom on fast taps */
@media (hover: hover) { .btn:hover { filter: brightness(1.08); } }
.btn:active { transform: translateY(var(--px)); box-shadow: 0 0 0 0 var(--c-deep); }
.btn:disabled { filter: grayscale(1) brightness(.6); cursor: not-allowed; }
.btn.cpu-btn { --c: var(--cpu); --c-deep: var(--cpu-deep); }
.btn.hot-btn { --c: var(--hot); --c-deep: #a3244f; }
.btn.ghost {
  background: transparent; color: var(--ink);
  box-shadow: inset 0 0 0 2px var(--line-2);
}
.btn.ghost:active { transform: translateY(2px); }
.btn.small { font-size: 12px; padding: 8px 12px 6px; }
.btn.on { box-shadow: inset 0 0 0 2px var(--gpu); color: var(--gpu); }

/* ---------- panels ---------- */
.panel {
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--px) var(--px) 0 0 rgba(0,0,0,.4);
  padding: 20px;
  position: relative;
}
.panel > .tag {
  position: absolute; top: -12px; left: 14px;
  font-family: var(--font-pixel); font-size: 12px;
  background: var(--bg); color: var(--muted);
  padding: 2px 8px; border: 2px solid var(--line);
}

.kbd {
  font-family: var(--font-mono); font-size: 13px;
  border: 1px solid var(--line-2); padding: 1px 6px; color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}