/* Responsibility: ルート変数、共通基盤、アプリ全体の土台レイアウト。
 * Rule: 画面全体に効く変数・リセット・固定レイヤーの基礎のみ置く。
 */

:root {
  --bg: #06070c;
  --panel: rgba(7, 12, 24, 0.64);
  --line: rgba(110, 255, 220, 0.16);
  --text: #edffff;
  --muted: #a4bac8;
  --accent: #74fff0;
  --accent-hot: #ff70da;
  --warn: #ffac64;
  --good: #87ffbb;
  --danger: #ff7070;
  --hud-heading: #d2e3ed;
  --hud-text: #eefaff;
  --hud-subtext: #d2e3ed;
  --hud-accent: #74fff0;
  --hud-accent-alt: #8fc8ff;
  --hud-boss: #ffe29a;
  --hud-glow-multiplier: 1;
  --damage-flash-multiplier: 1;
}


* { box-sizing: border-box; }
html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 0%, #18254b 0%, #060814 46%, #020204 100%);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
body canvas {
  display: block;
}

#bootLoadingOverlay {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 50% 18%, rgba(64, 135, 255, 0.18) 0%, rgba(8, 14, 28, 0.16) 28%, rgba(3, 5, 10, 0.92) 100%);
  backdrop-filter: blur(12px);
  transition: opacity 0.28s ease;
}
#bootLoadingOverlay.is-hidden {
  opacity: 0;
  pointer-events: none;
}
.boot-loading-card {
  width: min(460px, calc(100vw - 32px));
  padding: 24px 24px 22px;
  border: 1px solid rgba(116, 255, 240, 0.2);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(8, 15, 30, 0.92), rgba(5, 9, 18, 0.88));
  box-shadow: 0 24px 72px rgba(0, 0, 0, 0.38), 0 0 44px rgba(116, 255, 240, 0.08);
}
.boot-loading-eyebrow {
  color: var(--hud-heading);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.boot-loading-title {
  margin: 10px 0 10px;
  color: var(--hud-text);
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.02;
  letter-spacing: 0.04em;
}
.boot-loading-text {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}
.boot-loading-progress {
  position: relative;
  height: 12px;
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid rgba(116, 255, 240, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}
.boot-loading-progress-fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(116, 255, 240, 0.82), rgba(143, 200, 255, 0.96));
  box-shadow: 0 0 20px rgba(116, 255, 240, 0.28);
  transition: width 0.16s ease;
}
.boot-loading-meta {
  margin-top: 12px;
  color: var(--hud-text);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-align: right;
}

#app-shell {
  position: fixed;
  inset: 0;
}
#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  user-select: none;
}