/* Shared styles for the arcade home page and the game pages. */
:root {
  --bg: #05050b;
  --panel: #10101c;
  --border: #2b2b46;
  --fg: #ecebf5;
  --dim: #9897b3;
  --green: #39ff6a;
  --red: #ff4058;
  --vortex: #ffe23d;
  --vortex2: #3d7bff;
  --focus: #7ad7ff;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-monospace, "Cascadia Mono", "SF Mono", Consolas, "Courier New", monospace;
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--focus); }

button, select, input { font: inherit; }

button {
  background: #1c1c30;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 14px;
  cursor: pointer;
}
button:hover { border-color: var(--dim); }
button.primary { background: var(--green); color: #031; border-color: var(--green); font-weight: 700; }
button.primary:hover { filter: brightness(1.1); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

kbd {
  display: inline-block;
  padding: 0 5px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: #18182a;
  font-size: 0.85em;
}

[hidden] { display: none !important; }

/* ---------- home page ---------- */

.home {
  max-width: 980px;
  margin: 0 auto;
  padding: 48px 16px 32px;
}
.marquee { text-align: center; margin-bottom: 40px; }
.marquee h1 {
  margin: 0;
  font-size: clamp(32px, 7vw, 64px);
  letter-spacing: 0.12em;
  color: #fff;
  text-shadow: 0 0 6px #ff40d0, 0 0 22px #ff40d0, 0 0 44px #7a2cff;
}
.marquee p { color: var(--dim); margin: 8px 0 0; }

.cabinets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.cabinet {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
a.cabinet:hover, a.cabinet:focus-visible { transform: translateY(-3px); }
.cabinet.invaders:hover, .cabinet.invaders:focus-visible { border-color: var(--green); box-shadow: 0 0 28px rgba(57, 255, 106, 0.25); }
.cabinet.vortex:hover, .cabinet.vortex:focus-visible { border-color: var(--vortex); box-shadow: 0 0 28px rgba(255, 226, 61, 0.25); }
.cabinet canvas { width: 100%; height: auto; aspect-ratio: 4 / 3; display: block; background: #000; }
.cabinet .info { padding: 16px 20px 20px; }
.cabinet h2 { margin: 0 0 4px; font-size: 22px; letter-spacing: 0.08em; }
.cabinet.invaders h2 { color: var(--green); }
.cabinet.vortex h2 { color: var(--vortex); }
.cabinet .tribute { margin: 0 0 8px; color: var(--dim); font-size: 13px; }
.cabinet .play { display: inline-block; margin-top: 8px; font-weight: 700; }
.cabinet.soon { opacity: 0.6; }
.badge { font-size: 11px; padding: 2px 8px; border: 1px solid var(--border); border-radius: 99px; color: var(--dim); vertical-align: middle; margin-left: 6px; }

.fineprint { margin-top: 40px; text-align: center; color: var(--dim); font-size: 12px; }

/* ---------- game pages ---------- */

body.game-page {
  height: 100vh;
  height: 100dvh; /* excludes the phone browser's address bar */
  display: flex;
  flex-direction: column;
  overflow: hidden;
  overscroll-behavior: none;
}

.game-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  background: #0a0a14;
  flex-wrap: wrap;
}
.game-bar .back { text-decoration: none; font-weight: 700; }
.game-bar .keys { color: var(--dim); font-size: 13px; flex: 1; }
.game-bar .bar-buttons { display: flex; gap: 8px; }
.game-bar button { padding: 4px 10px; font-size: 13px; }

.stage { flex: 1; display: flex; align-items: center; justify-content: center; padding: 16px; min-height: 0; overflow: hidden; }

.screen-wrap { position: relative; line-height: 0; border-radius: 6px; box-shadow: 0 0 0 1px #1a1a2a, 0 0 60px rgba(120, 120, 255, 0.08); }
.screen-wrap canvas {
  background: #000;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  border-radius: 6px;
  outline: none;
}
.screen-wrap.crt::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: 6px;
  background:
    repeating-linear-gradient(to bottom, rgba(0, 0, 0, 0) 0, rgba(0, 0, 0, 0) 2px, rgba(0, 0, 0, 0.28) 3px),
    radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 60%, rgba(0, 0, 0, 0.45) 100%);
}

.screen-wrap.vector canvas { image-rendering: auto; }
.mouse-hint {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  margin: 0;
  padding: 6px 12px;
  line-height: 1.4;
  font-size: 13px;
  color: var(--vortex);
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid var(--border);
  border-radius: 6px;
  pointer-events: none;
  white-space: nowrap;
}

/* ---------- settings panel ---------- */

.panel-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(2, 2, 8, 0.72);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow-y: auto;
  z-index: 10;
}
.panel {
  width: min(520px, 100%);
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}
.panel-title { margin: 0; text-align: center; font-size: 28px; letter-spacing: 0.1em; }
.invaders-title { color: var(--green); text-shadow: 0 0 12px rgba(57, 255, 106, 0.5); }
.vortex-title { color: var(--vortex); text-shadow: 0 0 12px rgba(255, 226, 61, 0.5); }
.panel-sub { margin: 2px 0 18px; text-align: center; color: var(--dim); font-size: 13px; }

.panel fieldset { border: 1px solid var(--border); border-radius: 10px; margin: 0 0 14px; padding: 10px 14px 12px; }
.panel legend { color: var(--dim); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; padding: 0 6px; }
.panel .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 14px; }
.panel .grid label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--dim); }
.panel select {
  background: #18182a;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
}
.panel .radio, .panel .check { display: flex; gap: 8px; align-items: center; padding: 3px 0; cursor: pointer; }
.panel .range { display: flex; gap: 12px; align-items: center; padding-top: 4px; }
.panel .range input { flex: 1; }
.panel input[type=radio], .panel input[type=checkbox], .panel input[type=range] { accent-color: var(--green); }
.panel .howto { margin: 0 0 12px; font-size: 13px; color: var(--dim); }
.panel .howto summary { cursor: pointer; color: var(--fg); }
.panel .note { font-size: 12px; color: var(--dim); margin: 0 0 16px; }
.panel .buttons { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }

@media (max-width: 520px) {
  .panel .grid { grid-template-columns: 1fr; }
  .game-bar .keys { display: none; }
}

/* ---------- touch screens ---------- */

.touch-controls, .rotate-hint, .touch-only { display: none; }

body.touch .touch-only { display: block; }
body.touch .keyboard-only { display: none; }
body.touch .game-bar { padding: 6px 12px; padding-top: max(6px, env(safe-area-inset-top)); }
body.touch .game-bar .keys { display: none; }
body.touch .stage { padding: 8px; }
body.touch canvas { touch-action: none; }

body.touch .touch-controls {
  display: flex;
  gap: 10px;
  padding: 8px 12px;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  background: #0a0a14;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}
.touch-controls .tbtn, .touch-controls .tpad {
  height: 84px;
  border: 2px solid var(--border);
  border-radius: 14px;
  background: #15152a;
  color: var(--fg);
  font: inherit;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
}
.touch-controls .tbtn { flex: 1; }
.touch-controls .tbtn.arrow { font-size: 28px; }
.touch-controls .tbtn.fire { flex: 1.6; border-color: var(--red); color: var(--red); }
.touch-controls .tbtn.zap { flex: 0.9; border-color: var(--green); color: var(--green); font-size: 14px; }
.touch-controls .tpad { flex: 2.4; border-style: dashed; border-color: var(--vortex); color: var(--vortex); font-size: 13px; text-align: center; padding: 0 6px; }
.touch-controls .pressed { background: #2a2a4a; transform: scale(0.97); }

@media (orientation: landscape) and (max-height: 500px) {
  body.touch .rotate-hint {
    display: flex;
    position: fixed;
    inset: 0;
    z-index: 20;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 24px;
    background: var(--bg);
    color: var(--fg);
    font-size: 18px;
  }
}