:root {
  --bg-0: #090d1a;
  --bg-1: #1f2b4e;
  --bg-2: #283a6b;
  --game-scale: 1;
  --frame-dark: #151d34;
  --frame-mid: #324a79;
  --frame-light: #a9c9ff;
  --text: #eef5ff;
  --accent: #ffd88d;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: #000;
  color: var(--text);
  font-family: "Press Start 2P", monospace;
  display: grid;
  place-items: start center;
  min-height: 100vh;
  padding-top: 8px;
  overflow: hidden;
}

html[lang="ja"] body {
  font-family: "DotGothic16", sans-serif;
}

.app {
  position: relative;
  display: grid;
  gap: 6px;
  justify-items: center;
  padding: 18px 10px 4px;
}

.play-layout {
  display: flex;
  align-items: flex-start;
  gap: calc(var(--game-scale) * 10px);
}

.toolbar {
  position: absolute;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  pointer-events: auto;
}

.lang-menu {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 9px 6px;
  background:
    linear-gradient(180deg, #18315c 0%, #10213f 50%, #0b1730 100%);
  border: 3px solid var(--frame-light);
  box-shadow:
    0 0 0 3px var(--frame-mid),
    0 0 0 6px var(--frame-dark),
    0 10px 20px rgba(0, 0, 0, 0.35);
}

.lang-label {
  display: none;
}

.lang-switch {
  display: inline-flex;
  gap: 8px;
}

.lang-button {
  display: inline-block;
  border: 2px solid var(--frame-light);
  background:
    linear-gradient(180deg, #233d68 0%, #1a2f55 50%, #132444 100%);
  color: #dbeaff;
  padding: 5px 10px 4px;
  font: inherit;
  font-size: 10px;
  line-height: 1;
  cursor: pointer;
  min-width: 38px;
  box-shadow:
    inset 1px 1px 0 #7eacf0,
    inset -1px -1px 0 #091a34,
    0 2px 0 #1a2c4f;
  text-decoration: none;
  text-align: center;
  text-shadow: 1px 1px 0 #091121;
  user-select: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

html[lang="ja"] .lang-button,
html[lang="ja"] .overlay-button,
html[lang="ja"] .hint {
  font-family: "DotGothic16", sans-serif !important;
}

html[lang="ja"] .lang-button {
  font-size: 13px;
  padding: 4px 10px 3px;
}

html[lang="ja"] .overlay-button {
  font-size: 13px;
  padding: 7px 12px 6px;
}

html[lang="ja"] .hint {
  font-size: 16px;
  letter-spacing: 0;
}

.lang-button[aria-current="page"] {
  border-color: #ffe8a6;
  background:
    linear-gradient(180deg, #fff2bb 0%, #f6d87d 55%, #d5a84b 100%);
  color: #35260b;
  box-shadow:
    inset 1px 1px 0 #fff7d7,
    inset -1px -1px 0 #956b22,
    0 2px 0 #1a2c4f;
}

.lang-button:active {
  transform: translateY(1px);
  box-shadow:
    inset 1px 1px 0 rgba(255, 255, 255, 0.7),
    inset -1px -1px 0 rgba(20, 30, 54, 0.45),
    0 1px 0 #1a2c4f;
}

.overlay-button {
  position: absolute;
  left: 50%;
  top: 62%;
  transform: translateX(-50%);
  z-index: 15;
  border: 3px solid var(--frame-light);
  background:
    linear-gradient(180deg, #1a365f 0%, #112545 55%, #0b1832 100%);
  color: #eef5ff;
  box-shadow:
    0 0 0 3px var(--frame-mid),
    0 0 0 6px var(--frame-dark),
    0 8px 20px rgba(0, 0, 0, 0.35);
  font: inherit;
  font-size: 10px;
  line-height: 1;
  padding: 8px 12px;
  cursor: pointer;
  text-shadow: 1px 1px 0 #091121;
}

.overlay-button:active {
  transform: translateX(-50%) translateY(1px);
}

.hidden {
  display: none;
}

#game {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  border: 4px solid var(--frame-light);
  box-shadow:
    0 0 0 3px var(--frame-mid),
    0 0 0 6px var(--frame-dark),
    0 18px 36px rgba(0, 0, 0, 0.48);
  border-radius: 2px;
  background: #000;
}

.side-hud {
  display: grid;
  gap: calc(var(--game-scale) * 8px);
  width: calc(var(--game-scale) * 80px);
}

.hud-card {
  border: 3px solid var(--frame-light);
  background:
    linear-gradient(180deg, #193157 0%, #122542 100%);
  box-shadow:
    0 0 0 3px var(--frame-mid),
    0 0 0 6px var(--frame-dark),
    inset 0 0 0 2px #254673,
    inset 0 0 0 4px #0e1c34;
  padding: calc(var(--game-scale) * 6px);
  image-rendering: pixelated;
}

.hud-life-card {
  min-height: calc(var(--game-scale) * 52px);
}

.hud-card-title {
  color: #fff3bf;
  font-size: calc(var(--game-scale) * 7px);
  line-height: 1;
  margin-bottom: calc(var(--game-scale) * 8px);
  text-shadow:
    calc(var(--game-scale) * 1px) calc(var(--game-scale) * 1px) 0 #6f5722;
}

.hud-card-value {
  color: #fff7db;
  font-size: calc(var(--game-scale) * 10px);
  line-height: 1;
  text-align: right;
  font-family: "Press Start 2P", monospace;
}

.hud-score-value {
  font-size: calc(var(--game-scale) * 7px);
}

.side-hud .latin-text {
  font-family: "Press Start 2P", monospace;
}

.hud-hearts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: calc(var(--game-scale) * 6px);
  justify-items: center;
}

.hud-heart {
  position: relative;
  width: calc(var(--game-scale) * 14px);
  height: calc(var(--game-scale) * 10px);
}

.hud-heart-pixel {
  position: absolute;
  width: calc(var(--game-scale) * 2px);
  height: calc(var(--game-scale) * 2px);
  background: #5c4350;
}

.hud-heart.is-filled .hud-heart-pixel {
  background: #ff5e66;
}

.hud-heart .p1 { left: calc(var(--game-scale) * 2px); top: 0; }
.hud-heart .p2 { left: calc(var(--game-scale) * 4px); top: 0; }
.hud-heart .p3 { left: calc(var(--game-scale) * 8px); top: 0; }
.hud-heart .p4 { left: calc(var(--game-scale) * 10px); top: 0; }
.hud-heart .p5 { left: 0; top: calc(var(--game-scale) * 2px); }
.hud-heart .p6 { left: calc(var(--game-scale) * 2px); top: calc(var(--game-scale) * 2px); }
.hud-heart .p7 { left: calc(var(--game-scale) * 4px); top: calc(var(--game-scale) * 2px); }
.hud-heart .p8 { left: calc(var(--game-scale) * 8px); top: calc(var(--game-scale) * 2px); }
.hud-heart .p9 { left: calc(var(--game-scale) * 10px); top: calc(var(--game-scale) * 2px); }
.hud-heart .p10 { left: calc(var(--game-scale) * 12px); top: calc(var(--game-scale) * 2px); }
.hud-heart .p11 { left: calc(var(--game-scale) * 2px); top: calc(var(--game-scale) * 4px); }
.hud-heart .p12 { left: calc(var(--game-scale) * 4px); top: calc(var(--game-scale) * 4px); }
.hud-heart .p13 { left: calc(var(--game-scale) * 6px); top: calc(var(--game-scale) * 4px); }
.hud-heart .p14 { left: calc(var(--game-scale) * 8px); top: calc(var(--game-scale) * 4px); }
.hud-heart .p15 { left: calc(var(--game-scale) * 10px); top: calc(var(--game-scale) * 4px); }
.hud-heart .p16 { left: calc(var(--game-scale) * 4px); top: calc(var(--game-scale) * 6px); }
.hud-heart .p17 { left: calc(var(--game-scale) * 6px); top: calc(var(--game-scale) * 6px); }
.hud-heart .p18 { left: calc(var(--game-scale) * 8px); top: calc(var(--game-scale) * 6px); }
.hud-heart .p19 { left: calc(var(--game-scale) * 6px); top: calc(var(--game-scale) * 8px); }

.hud-boss-bar {
  height: calc(var(--game-scale) * 8px);
  background: #2b3550;
}

.hud-boss-fill {
  height: 100%;
  width: 0;
  background: #e58358;
}

.hint {
  font-size: 13px;
  letter-spacing: 0.6px;
  color: #f2f8ff;
  text-shadow: 0 1px 0 #142142;
  text-align: center;
  user-select: none;
}

@media (max-width: 768px) {
  .toolbar {
    top: -2px;
  }

  .lang-menu {
    gap: 6px;
    padding: 6px 7px 5px;
  }

  .hint {
    font-size: 11px;
  }

  html[lang="ja"] .lang-button,
  html[lang="ja"] .overlay-button {
    font-size: 12px;
  }

  html[lang="ja"] .hint {
    font-size: 14px;
  }
}