/* Air Raid Runner — app-level layout & theming.
   Pico CSS handles base elements; this file adds the game shell. */

:root {
  --sky: #0d1017;
  --panel: rgba(10, 12, 18, 0.72);
  --ink: #e8edf2;
  --muted: #93a0b0;
  --accent: #2fbf71;
  --danger: #ff5a4d;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--sky);
  color: var(--ink);
  overflow: hidden;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

#app {
  position: fixed;
  inset: 0;
  overflow: hidden;
}

#game {
  display: block;
  width: 100vw;
  height: 100vh;
  touch-action: none;
}

/* --- HUD top bar ---
   One flex row, right-aligned. The stat blocks + the action group (language /
   pause / mute) all live in the same row so the layout holds at every width:
   the whole cluster hugs the right, and on narrow screens it wraps instead of
   overflowing. `#hud` stays click-through (pointer-events: none) so the 3D
   canvas beneath is unaffected; the buttons re-enable pointer events on
   `.hud-actions` below. */
#hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px 10px;
  row-gap: 8px;
  padding: 10px 14px;
  pointer-events: none;
  z-index: 5;
}

.hud-block {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  padding: 6px 12px;
  min-width: 78px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.hud-left { text-align: left; }
.hud-mid  { text-align: center; }
.hud-right { text-align: right; }

.hud-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.hud-value {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.hud-lives { color: var(--danger); font-size: 20px; }
.hud-sub { font-size: 15px; min-height: 18px; color: var(--ink); }

/* --- HUD action buttons (language / pause / mute) ---
   Inline flex group at the right end of the #hud row (no longer absolutely
   positioned). pointer-events: auto makes them actually clickable — the parent
   #hud is pointer-events:none, so without this the buttons were mouse-inert
   (keyboard-only). */
.hud-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  pointer-events: auto;
  z-index: 6;
}

.hud-btn {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--ink);
  border-radius: 10px;
  padding: 6px 12px;
  font-size: 14px;
  cursor: pointer;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  min-height: 36px;
}

.hud-btn:hover:not(:disabled) {
  background: rgba(20, 24, 32, 0.9);
  border-color: rgba(255, 255, 255, 0.18);
}

.hud-btn:disabled { opacity: 0.4; cursor: default; }

.hud-btn[aria-pressed="true"] {
  background: rgba(47, 191, 113, 0.15);
  border-color: rgba(47, 191, 113, 0.4);
}

/* --- Mobile swipe hint --- */
.swipe-hint {
  display: none;
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 999px;
  white-space: nowrap;
  pointer-events: none;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 4;
}

@media (pointer: coarse) {
  .swipe-hint { display: block; }
}

/* --- Hit flash overlay --- */
#hit-flash {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  z-index: 4;
  background: radial-gradient(
    ellipse at center,
    rgba(255, 90, 77, 0.0) 40%,
    rgba(255, 60, 45, 0.55) 100%
  );
  transition: opacity 80ms linear;
}

/* --- Menu / game over overlay --- */
.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  background: rgba(6, 8, 12, 0.55);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

.overlay.hidden { display: none; }

.overlay-card {
  max-width: 420px;
  margin: 0 16px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

.overlay-title {
  font-size: 28px;
  margin: 0 0 12px;
}

.overlay-text {
  color: var(--muted);
  line-height: 1.5;
  margin: 0 0 20px;
}

.btn-primary {
  background: var(--accent);
  color: #06130c;
  border: none;
  font-weight: 700;
}

.btn-primary:hover,
.btn-primary:focus {
  background: #3fd484;
  color: #06130c;
  box-shadow: 0 6px 20px rgba(47, 191, 113, 0.35);
}

.hint {
  font-size: 13px;
  color: var(--muted);
  margin: 16px 0 0;
}

/* Language toggle on the start menu — compact, secondary, sits between the
   primary Start button and the controls hint. */
.menu-lang-btn {
  width: 100%;
  margin: 12px 0 0;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
}

.menu-lang-btn:hover,
.menu-lang-btn:focus {
  color: #eafff2;
  border-color: var(--accent);
  background: rgba(47, 191, 113, 0.12);
}

/* --- In-game legend (menu only) --- */
.legend {
  display: flex;
  gap: 14px;
  margin: 0 0 20px;
  text-align: left;
}

.legend-group {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 10px 12px;
}

.legend-group-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.legend-group-title.good { color: var(--accent); }
.legend-group-title.bad { color: var(--danger); }

.legend-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.legend-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink);
}

.legend-list li em {
  margin-left: auto;
  font-style: normal;
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.lg-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex: none;
}

@media (max-width: 460px) {
  .legend { flex-direction: column; gap: 10px; }
}

/* --- Best score chip --- */
.best-chip {
  position: absolute;
  bottom: 12px;
  right: 16px;
  display: flex;
  gap: 6px;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  padding: 4px 12px;
  z-index: 5;
  pointer-events: none;
}

.best-chip b {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 560px) {
  #hud { padding: 8px 10px; gap: 6px 8px; }
  .hud-value { font-size: 18px; }
  .hud-block { min-width: 58px; padding: 5px 9px; }
  .hud-btn { padding: 6px 9px; font-size: 13px; min-height: 32px; }
}