/* ===================================================
   LumoArcadia - Space Neon
=================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #060610;
  --panel: #0d0d1a;
  --panel-2: #111126;
  --accent: #00f5ff;
  --accent-2: #39ff14;
  --good: #39ff14;
  --warn: #ffe600;
  --danger: #ff2d78;
  --text: #e8e8f8;
  --muted: #7070a0;
  --font-display: 'Orbitron', monospace;
  --font-body: 'Rajdhani', sans-serif;
}
html { font-size: 16px; }
body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 12%, rgba(56,109,255,.12), transparent 32%),
    radial-gradient(circle at 84% 90%, rgba(98,59,255,.10), transparent 34%),
    radial-gradient(circle at 50% 100%, rgba(0,245,255,.08), transparent 38%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font-family: var(--font-display); cursor: pointer; }
.game-page { min-height: 100vh; display: flex; flex-direction: column; align-items: center; padding: 1rem; }
.game-header { width: min(1180px, 100%); display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: .75rem; }
.back-link, .neon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid color-mix(in srgb, var(--accent) 48%, transparent);
  color: var(--accent); background: transparent; border-radius: 6px;
  padding: .55rem .9rem; font-size: .66rem; letter-spacing: .18em; text-transform: uppercase;
  transition: background .18s, color .18s, box-shadow .18s, transform .18s;
}
.back-link:hover, .neon-btn:hover { background: var(--accent); color: var(--bg); box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 80%, transparent); transform: translateY(-1px); }
.game-title { font-family: var(--font-display); font-size: clamp(1rem, 4vw, 1.55rem); letter-spacing: .14em; color: var(--accent); text-shadow: 0 0 18px color-mix(in srgb, var(--accent) 70%, transparent); text-align: center; }
.hud {
  width: min(1180px, 100%);
  display: flex;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: 1rem;
  margin-bottom: .75rem;
  padding: .9rem 2.4rem;
  border: 1px solid rgba(85,166,255,.65);
  background: rgba(2,5,18,.78);
  box-shadow: inset 0 0 20px rgba(0,120,255,.08), 0 0 22px rgba(0,90,255,.12);
}
.hud-item { min-width: 170px; border: 0; background: transparent; border-radius: 0; padding: .2rem .35rem; text-align: left; }
.hud-extra { display: none; }
.hud-label { display: block; color: #f4f7ff; font-family: var(--font-display); font-size: .9rem; font-weight: 900; letter-spacing: .08em; }
.hud-value { display: block; color: #43d8ff; font-family: var(--font-display); font-size: 1.8rem; font-weight: 900; line-height: 1.15; text-shadow: 0 0 10px rgba(67,216,255,.65); white-space: nowrap; }
.life-ship {
  display: inline-block;
  width: 28px;
  height: 24px;
  margin-right: 8px;
  vertical-align: middle;
  background:
    linear-gradient(#ffffff 0 0) 12px 0 / 4px 4px,
    linear-gradient(#dfefff 0 0) 8px 4px / 12px 4px,
    linear-gradient(#ffffff 0 0) 4px 8px / 20px 4px,
    linear-gradient(#7bc8ff 0 0) 0 12px / 28px 4px,
    linear-gradient(#168cff 0 0) 4px 16px / 6px 4px,
    linear-gradient(#168cff 0 0) 18px 16px / 6px 4px,
    linear-gradient(#ff8a18 0 0) 12px 18px / 4px 6px;
  background-repeat: no-repeat;
  filter: drop-shadow(0 0 7px rgba(67,216,255,.65));
}
.stage-wrap { position: relative; width: min(1180px, 97vw); aspect-ratio: 16 / 9; max-height: 78vh; min-height: 540px; border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent); border-radius: 14px; overflow: hidden; background: rgba(6,6,16,.88); box-shadow: 0 0 34px color-mix(in srgb, var(--accent) 14%, transparent); }
.space-stage { background: linear-gradient(180deg, rgba(4,4,16,.92), rgba(3,7,22,.98)); }
canvas { width: 100%; height: 100%; display: block; touch-action: none; }
.screen { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem; padding: 1.5rem; background: rgba(6,6,16,.91); text-align: center; font-family: var(--font-display); z-index: 5; }
.screen.hidden { display: none; }
.screen-title { color: var(--accent); font-size: clamp(1.4rem, 6vw, 3rem); font-weight: 900; letter-spacing: .12em; text-shadow: 0 0 24px color-mix(in srgb, var(--accent) 80%, transparent); }
.screen-sub { color: var(--muted); font-size: .8rem; letter-spacing: .1em; line-height: 1.7; max-width: 640px; }
.controls-hint { margin-top: .75rem; color: var(--muted); font-family: var(--font-display); font-size: .58rem; letter-spacing: .12em; text-align: center; }
.mobile-controls { display: flex; justify-content: center; gap: .45rem; flex-wrap: wrap; margin-top: .75rem; }
.touch-btn { min-width: 54px; min-height: 44px; border: 1px solid color-mix(in srgb, var(--accent) 36%, transparent); background: color-mix(in srgb, var(--accent) 8%, transparent); color: var(--accent); border-radius: 8px; font-size: .9rem; touch-action: manipulation; user-select: none; }
.touch-btn:active { background: color-mix(in srgb, var(--accent) 22%, transparent); box-shadow: 0 0 14px color-mix(in srgb, var(--accent) 45%, transparent); }
.shoot-touch { border-color: color-mix(in srgb, var(--danger) 55%, transparent); color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, transparent); min-width: 70px; }
.boss-ui { position: absolute; top: 14px; left: 50%; transform: translateX(-50%); width: min(520px, 72%); z-index: 2; font-family: var(--font-display); text-align: center; color: var(--danger); font-size: .62rem; letter-spacing: .18em; text-shadow: 0 0 12px rgba(255,45,120,.8); pointer-events: none; }
.boss-ui.hidden { display: none; }
.boss-bar { height: 9px; margin-top: .35rem; border: 1px solid rgba(255,45,120,.42); background: rgba(255,45,120,.08); border-radius: 999px; overflow: hidden; box-shadow: 0 0 14px rgba(255,45,120,.18); }
#bossBar { height: 100%; width: 100%; background: linear-gradient(90deg, var(--danger), var(--warn)); box-shadow: 0 0 16px rgba(255,45,120,.75); transition: width .12s linear; }
@media (max-width: 680px) {
  .game-header { align-items: flex-start; flex-direction: column; }
  .game-title { text-align: left; }
  .hud { justify-content: flex-start; }
  .hud-item { min-width: 76px; }
  .stage-wrap { width: 96vw; aspect-ratio: 4 / 5; max-height: none; min-height: 480px; }
  .space-hud { gap: .4rem; }
}