/* AirStrike 3D web page (docs/web.md): the canvas fills the window or the screen; the
   overlays are the start screen, the portrait notice, the end and error screens. */
:root {
  --bg: #000;
  --panel: rgba(14, 15, 18, 0.94);
  --text: #e8e2da;
  --muted: #a39a90;
  --accent: #ffa000;
  --accent-text: #1a0d00;
  --warn: #ff8a65;
  --line: rgba(255, 160, 0, 0.35);
}
html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}
canvas#canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  width: 100dvw;
  height: 100dvh;
  display: block;
  background: #000;
  outline: none;
  touch-action: none;
}
/* Reads env(safe-area-inset-*) for the game (app.js). */
#insets-probe {
  position: fixed;
  visibility: hidden;
  pointer-events: none;
  padding: env(safe-area-inset-top, 0px) env(safe-area-inset-right, 0px) env(safe-area-inset-bottom, 0px) env(safe-area-inset-left, 0px);
}

.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  box-sizing: border-box;
  background: radial-gradient(ellipse at 50% 40%, #2e2420 0%, #0e0f12 70%);
  overflow-y: auto;
  z-index: 10;
}
[hidden] { display: none !important; }
#start.running { background: rgba(0, 0, 0, 0.55); }
#start.running .panel > :not(#status) { display: none; }
.panel {
  max-width: 560px;
  width: 100%;
  text-align: center;
  margin: auto;
}
.panel .logo { display: block; margin: 0 auto 4px; border-radius: 16px; }
h1 { margin: 4px 0 0; font-size: 30px; letter-spacing: 0.04em; font-weight: 700; }
.sub { margin: 0 0 14px; color: var(--muted); }
.small { font-size: 13px; color: var(--muted); }
.warn { color: var(--warn); }
code { font-size: 12px; color: var(--text); }
.row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin: 12px 0; }

button, .button {
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 18px;
  cursor: pointer;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  display: inline-block;
}
button:focus-visible, .button:focus-within { outline: 2px solid var(--accent); outline-offset: 2px; }
button.play {
  font-size: 26px;
  font-weight: 700;
  padding: 16px 56px;
  min-width: 220px;
  border: none;
  color: var(--accent-text);
  background: var(--accent);
  box-shadow: 0 6px 24px rgba(255, 160, 0, 0.25);
}
button.play:disabled { opacity: 0.35; cursor: default; box-shadow: none; }
/* The game selector (docs/spec/issues/163, 164): the engine's own selector screen, laid out in
   its virtual 800x600 units (--u is one of them; the engine scales by height, or by width on
   screens narrower than 4:3): black bars with a rust rule, "Choose a game" in the top bar, the
   cards between them on a dim red wash, the bottom bar below. A card: the marquee on its dark
   stage, the title, the version, what there is to know, what a click does. */
#start { --u: min(100vh / 600, 100vw / 800); --rust: #c03000; --orange: #ffa000; --soft: #e05f1f; }
#start.choosing { background: #000; padding: 0; overflow: hidden; }
#start.choosing .panel { max-width: none; height: 100%; margin: 0; text-align: center; }
#start.choosing .panel > :not(#games) { display: none; }
#games { height: 100%; display: flex; flex-direction: column; font-family: "Trebuchet MS", system-ui, sans-serif; letter-spacing: 0.06em; }
#games .bar { flex: 100 0 0; min-height: calc(60 * var(--u)); background: #000; display: flex; align-items: center; justify-content: center; position: relative; }
#games .bar.top { border-bottom: calc(2 * var(--u)) solid var(--rust); }
#games .bar.bottom { border-top: calc(2 * var(--u)) solid var(--rust); justify-content: space-between; padding: 0 calc(28 * var(--u)); gap: 12px; }
#games h2 { margin: 0; font-size: calc(30 * var(--u)); font-weight: 600; color: var(--orange); text-shadow: 0 calc(2 * var(--u)) 0 rgba(0, 0, 0, 0.8), 0 0 calc(10 * var(--u)) rgba(255, 160, 0, 0.35); }
#games .band { flex: 400 0 0; display: flex; align-items: center; justify-content: center; background: #150505; min-height: 0; padding: 0 calc(28 * var(--u)); }
#games .bar .small { font-size: calc(13 * var(--u)); min-width: 12px; }
#games .bar .keys { position: absolute; left: 0; right: 0; text-align: center; pointer-events: none; bottom: calc(6 * var(--u)); }
#games .bar.bottom label { z-index: 1; }
button.play-card { font-size: calc(22 * var(--u)); min-width: calc(150 * var(--u)); height: calc(40 * var(--u)); padding: 0; border: none; border-radius: 0; background: #300000; color: #ff3000; letter-spacing: 0.06em; z-index: 1; }
button.play-card:disabled { opacity: 0.4; cursor: default; }
.cards { display: flex; justify-content: center; gap: calc(18 * var(--u)); width: 100%; max-width: calc(1100 * var(--u)); }
.cards button.game {
  flex: 0 1 calc(380 * var(--u));
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: calc(18 * var(--u)) calc(14 * var(--u)) calc(18 * var(--u));
  border: 1px solid #002a70;
  border-color: #702a00;
  border-radius: 0;
  background: rgba(8, 3, 3, 0.72);
  color: #fff;
  font: inherit;
  cursor: pointer;
  transition: none;
}
.cards button.game .stage { display: flex; align-items: center; justify-content: center; width: 100%; aspect-ratio: 352 / 162; margin-bottom: calc(14 * var(--u));
  background: rgba(0, 0, 0, 0.6); outline: 1px solid rgba(144, 60, 0, 0.45); outline-offset: calc(4 * var(--u)); box-sizing: border-box; }
.cards button.game .stage > img, .cards button.game .stage > canvas { width: 100%; height: 100%; display: block; object-fit: contain; }
.cards button.game .stage.text { color: var(--soft); font-size: min(calc(36 * var(--u)), calc(92cqw / var(--chars, 12) / 0.62)); line-height: 1.1; text-shadow: 0 calc(2 * var(--u)) 0 #000; padding: 0 4px; }
.cards button.game { container-type: inline-size; }
.cards button.game strong, .cards button.game .stage.text { white-space: nowrap; }
.cards button.game strong { font-size: min(calc(22 * var(--u)), calc(92cqw / var(--chars, 12) / 0.62)); font-weight: 500; color: var(--soft); text-shadow: 0 calc(2 * var(--u)) 0 #000; line-height: 1.2; margin: calc(8 * var(--u)) 0 calc(2 * var(--u)); height: calc(30 * var(--u)); display: flex; align-items: center; }
.cards button.game small { font-size: calc(14 * var(--u)); color: #808080; }
.cards button.game .info { display: flex; flex-direction: column; justify-content: center; gap: calc(4 * var(--u)); min-height: calc(50 * var(--u)); margin-top: calc(6 * var(--u)); font-size: calc(15 * var(--u)); color: #fff; }
.cards button.game .info .lastplayed { color: var(--orange); }
.cards button.game .hint { align-self: stretch; margin-top: calc(6 * var(--u)); padding-top: calc(12 * var(--u)); border-top: 1px solid rgba(144, 60, 0, 0.5); font-size: calc(14 * var(--u)); color: #808080; }
.cards button.game.current { border-color: var(--orange); background: rgba(77, 5, 5, 0.8); box-shadow: 0 0 calc(3 * var(--u)) rgba(255, 128, 0, 0.6), 0 0 calc(10 * var(--u)) rgba(255, 128, 0, 0.3); outline: none; animation: card-pulse 1.05s ease-in-out infinite; }
.cards button.game.current strong, .cards button.game.current .hint { color: var(--orange); }
.cards button.game.current .stage { background: rgba(0, 0, 0, 0.78); outline-color: rgba(255, 150, 0, 0.6); }
.cards button.game.current .hint { animation: hint-pulse 1.05s ease-in-out infinite; }
.cards button.game:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.cards button.game.chosen { box-shadow: 0 0 calc(14 * var(--u)) rgba(255, 160, 0, 0.9); }
.cards button.game:disabled:not(.chosen) { opacity: 0.4; cursor: default; }
@keyframes card-pulse { 0%, 100% { border-color: #a05a00; box-shadow: 0 0 calc(2 * var(--u)) rgba(255, 128, 0, 0.35), 0 0 calc(7 * var(--u)) rgba(255, 128, 0, 0.12); }
                        50% { border-color: #ffa000; box-shadow: 0 0 calc(3 * var(--u)) rgba(255, 128, 0, 0.75), 0 0 calc(12 * var(--u)) rgba(255, 128, 0, 0.4); } }
@keyframes hint-pulse { 0%, 100% { opacity: 0.72; } 50% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .cards button.game.current, .cards button.game.current .hint { animation: none; } }
/* Bring your own, before the files are there: the same cards, smaller, not to be played yet. */
.cards.mini { max-width: 100%; margin: 8px 0 4px; gap: 10px; }
.cards.mini button.game { flex: 1 1 0; padding: 8px; cursor: default; font-size: 13px; }
.cards.mini button.game .stage { margin-bottom: 6px; }
.cards.mini button.game .stage.text { font-size: min(18px, calc(92cqw / var(--chars, 12) / 0.62)); }
.cards.mini button.game strong { font-size: 15px; margin: 4px 0 2px; }
.cards.mini button.game small { font-size: 12px; }
.cards.mini button.game .info { font-size: 12px; min-height: 0; margin-top: 4px; }
.cards.mini button.game .hint { display: none; }
.cards.mini button.game .stage { outline: none; }
button.link { border: none; background: none; padding: 0 4px; color: var(--accent); text-decoration: underline; }

#progress { height: 8px; border-radius: 4px; background: rgba(255, 255, 255, 0.1); overflow: hidden; margin: 10px auto 0; max-width: 360px; }
#bar { height: 100%; width: 0; background: var(--accent); transition: width 0.15s; }
#status { min-height: 1.4em; margin: 8px 0; }

#files { text-align: left; }
#files-list { list-style: none; padding: 0; margin: 8px 0; font-size: 14px; }
#files-list li { padding: 2px 0; }
#files-list .ok::before { content: "\2713  "; color: #9ccc65; }
#files-list .missing::before { content: "\2022  "; color: var(--muted); }
#files-list .bad::before { content: "\2717  "; color: var(--warn); }
#drop {
  border: 2px dashed var(--line);
  border-radius: 12px;
  padding: 10px 14px;
  text-align: center;
}
#drop.over { border-color: var(--accent); background: rgba(255, 160, 0, 0.08); }
#files-status { min-height: 1.4em; }

/* Touch devices see the touch hint, others the keys. */
body.touchdev #hint-keys, body:not(.touchdev) #hint-touch { display: none; }

/* The full screen toggle in touch mode, beside the game's pause button (placed by app.js). */
#fs-toggle {
  position: fixed;
  z-index: 5;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.55);
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
  opacity: 0.8;
}
#fs-toggle[hidden] { display: none; }
#fs-toggle svg { width: 60%; height: 60%; fill: none; stroke: #fff; stroke-width: 2.4; stroke-linecap: round; }
#fs-toggle .leave, body.fullscreen #fs-toggle .enter { display: none; }
body.fullscreen #fs-toggle .leave { display: inline; }

#rotate { background: #0e0f12; z-index: 20; }
#rotate .rot { width: 72px; height: 72px; fill: none; stroke: var(--accent); stroke-width: 2.5; stroke-linecap: round; }
#rotate p { font-size: 18px; }

@media (max-height: 480px) {
  .panel .logo { width: 48px; height: 48px; }
  h1 { font-size: 24px; }
  .sub { margin-bottom: 6px; }
  button.play { font-size: 22px; padding: 12px 44px; }
}

/* The chosen card's game loads: the bottom bar shows the progress instead of its controls. */
#start.choosing #games.chosen .keys, #start.choosing #games.chosen #choose-play, #start.choosing #games.chosen #choose-full-label { visibility: hidden; }
#start.choosing #progress:not([hidden]), #start.choosing #status {
  display: block !important;
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  z-index: 11;
  width: min(360px, 60vw);
  margin: 0;
}
#start.choosing #progress:not([hidden]) { bottom: calc(44 * var(--u)); }
#start.choosing #status { bottom: calc(14 * var(--u)); color: var(--muted); font-size: calc(14 * var(--u)); min-height: 0; }

/* Bring your own, on the selector: the way to remove the stored files stays in reach. */
#start.choosing .panel > #stored:not([hidden]) {
  display: block;
  position: fixed;
  z-index: 11;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(30 * var(--u));
  margin: 0;
  font-size: calc(12 * var(--u));
  white-space: nowrap;
}
#start.choosing #stored-text { display: none; }
#start.choosing #stored::before { content: "Game files kept in this browser."; }
#start.choosing #games.chosen ~ #stored { visibility: hidden; }