/* ====================================================================
   BLACK HOLE RIDER — 1-bit page styling.
   White on pure black. Chunky pixels, the game's Kenney Pixel bitmap
   font, hard edges, scanlines, hover-to-invert. No gradients.
   ==================================================================== */

@font-face {
  font-family: "Kenney Pixel";
  src: url("/assets/KenneyPixel.ttf") format("truetype");
  font-display: swap;
}

:root {
  --w: #ffffff;
  --k: #000000;
  --dim: #9a9a9a;
  --line: #2a2a2a;
  --max: 980px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--k);
  color: var(--w);
  font-family: "Kenney Pixel", "Courier New", monospace;
  font-size: 20px;
  letter-spacing: 1px;
  line-height: 1.65;
  -webkit-font-smoothing: none;
  font-smooth: never;
  overflow-x: hidden;
  image-rendering: pixelated;
}

a { color: inherit; text-decoration: none; }

/* ---------- CRT scanlines + flicker ---------- */
.crt {
  position: fixed; inset: 0; z-index: 50; pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0,0,0,0) 0px,
    rgba(0,0,0,0) 2px,
    rgba(0,0,0,0.28) 3px,
    rgba(0,0,0,0.28) 4px
  );
  mix-blend-mode: multiply;
}
.crt::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 120% at 50% 50%, transparent 60%, rgba(0,0,0,0.6));
}

/* ---------- Starfield ---------- */
.stars { position: fixed; inset: 0; z-index: -1; pointer-events: none; }
.stars i {
  position: absolute; display: block; background: var(--w);
  animation: twinkle 4s steps(2) infinite;
}
@keyframes twinkle { 50% { opacity: 0.15 !important; } }

/* ---------- Top rail ---------- */
.rail {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; font-size: 21px;
  background: var(--k); border-bottom: 2px solid var(--w);
}
.rail__back:hover { background: var(--w); color: var(--k); }
.rail__ver { color: var(--dim); }

/* ---------- Layout ---------- */
main { max-width: var(--max); margin: 0 auto; padding: 0 22px; }
.block { padding: 70px 0; border-bottom: 2px solid var(--line); }

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 60px 0 80px; position: relative; }

.title {
  font-family: "Kenney Pixel", monospace;
  font-size: clamp(56px, 13vw, 132px);
  line-height: 0.92; margin: 10px 0 0; letter-spacing: 4px;
  text-shadow: 4px 4px 0 #1c1c1c;
  animation: jitter 3s steps(1) infinite;
}
@keyframes jitter { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-2px); } }

.sub { font-size: clamp(20px, 3.4vw, 30px); color: var(--dim); margin: 18px 0 34px; letter-spacing: 3px; }

.hero__meta { margin-top: 26px; font-size: 19px; color: var(--dim); letter-spacing: 2px; }

/* ---------- Animated CSS black hole ---------- */
.hole {
  position: relative; width: 220px; height: 220px; margin: 10px auto 0;
}
.hole__core {
  position: absolute; inset: 50% auto auto 50%;
  width: 96px; height: 96px; transform: translate(-50%, -50%);
  background: var(--k);
  border: 4px solid var(--w);
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--k), 0 0 22px 4px rgba(255,255,255,0.18);
}
.hole__ring {
  position: absolute; inset: 50% auto auto 50%;
  border-radius: 50%; transform: translate(-50%, -50%);
  border: 2px dashed var(--w);
}
.hole__ring--1 { width: 140px; height: 140px; opacity: 0.55; animation: spin 6s linear infinite; }
.hole__ring--2 { width: 178px; height: 178px; opacity: 0.35; animation: spin 11s linear infinite reverse; }
.hole__ring--3 { width: 214px; height: 214px; opacity: 0.2;  animation: spin 18s linear infinite; }
@keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

/* the lone fighter caught in orbit */
.hole__ship { position: absolute; inset: 0; animation: orbit 4.5s linear infinite; }
.hole__ship::before {
  content: ""; position: absolute; top: -4px; left: 50%;
  width: 0; height: 0; margin-left: -6px;
  border-left: 6px solid transparent; border-right: 6px solid transparent;
  border-bottom: 14px solid var(--w);
}
@keyframes orbit { to { transform: rotate(360deg); } }

/* ---------- Buttons (bracket style) ---------- */
.btn {
  display: inline-block; padding: 12px 22px; margin: 6px;
  font-family: "Kenney Pixel", monospace; font-size: 27px; letter-spacing: 2px;
  color: var(--w); border: 2px solid var(--w); background: var(--k);
  transition: none;
}
.btn:hover { background: var(--w); color: var(--k); }
.btn--dim { border-color: var(--dim); color: var(--dim); }
.btn--dim:hover { background: var(--dim); color: var(--k); }
.btn--big { font-size: 34px; padding: 16px 30px; }
.cta { margin-top: 30px; }

/* ---------- Headings ---------- */
.h2 { font-size: clamp(30px, 4.5vw, 42px); letter-spacing: 3px; margin: 0 0 22px; }
.lead { font-size: 24px; line-height: 1.7; color: #e2e2e2; max-width: 60ch; margin: 0 0 30px; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.step { border: 2px solid var(--w); padding: 16px; background: var(--k); }
.step:hover { background: var(--w); color: var(--k); }
.step__n { display: block; font-size: 30px; color: var(--dim); }
.step:hover .step__n { color: var(--k); }
.step strong { display: block; font-size: 26px; letter-spacing: 2px; margin: 8px 0 6px; }
.step p { font-size: 20px; margin: 0; color: #d8d8d8; }
.step:hover p { color: var(--k); }

/* ---------- Cards grid ---------- */
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.card { border: 2px solid var(--w); padding: 18px; background: var(--k); }
.card:hover { background: var(--w); color: var(--k); }
.card h3 { font-size: 32px; letter-spacing: 2px; margin: 0 0 10px; }
.card__twist { font-size: 21px; line-height: 1.6; margin: 0 0 14px; color: #d8d8d8; }
.card:hover .card__twist { color: var(--k); }
.card__tag { font-size: 18px; color: var(--dim); margin: 0; letter-spacing: 1px; }
.card:hover .card__tag { color: var(--k); }

/* ---------- Features ---------- */
.feats { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.feats li { font-size: 23px; line-height: 1.55; padding-left: 30px; position: relative; }
.feats li::before { content: "[+]"; position: absolute; left: 0; color: var(--dim); }

/* ---------- Controls ---------- */
.keys { display: flex; flex-wrap: wrap; gap: 14px; }
.key { display: flex; align-items: center; gap: 12px; border: 2px solid var(--w); padding: 12px 16px; }
.key kbd {
  font-family: "Kenney Pixel", monospace; font-size: 24px;
  background: var(--w); color: var(--k); padding: 4px 10px; letter-spacing: 2px;
}
.key span { font-size: 20px; color: var(--dim); }

/* ---------- Download ---------- */
.download { text-align: center; border-bottom: none; }

/* ---------- Footer ---------- */
.foot {
  max-width: var(--max); margin: 0 auto;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  padding: 26px 22px 50px; font-size: 19px; color: var(--dim);
  border-top: 2px solid var(--w);
}
.foot a:hover { color: var(--w); }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .steps { grid-template-columns: 1fr 1fr; }
  .grid, .grid--3 { grid-template-columns: 1fr; }
}
@media (max-width: 440px) {
  .steps { grid-template-columns: 1fr; }
}