:root {
  --aua-gold: #ffe100;
  --aua-ink: #000;
  --aua-paper: #fff;
  --aua-muted: #888;
  --aua-line: #333;
  --aua-font: "ArcadeR", monospace;
}

@font-face {
  font-family: "ArcadeR";
  src: url("../font/ARCADE_R.TTF");
  font-display: swap;
}

*, *::before, *::after { box-sizing: border-box; }

html { overflow-x: hidden; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--aua-ink);
  color: var(--aua-paper);
  font-family: var(--aua-font);
}

body.aua-active {
  overflow: hidden;
  touch-action: none;
  height: 100%;
}

body:not(.aua-active) {
  touch-action: auto;
}

.aua-hidden {
  display: none !important;
}

.aua-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Lobby ── */

.aua-lobby {
  min-height: 100vh;
  min-height: 100dvh;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding-top: 20px;
  --aua-lobby-pad: clamp(0.75rem, 3vw, 1.5rem);
  --aua-lobby-max: 920px;
}

.aua-lobby__shell {
  width: min(var(--aua-lobby-max), calc(100% - 2 * var(--aua-lobby-pad)));
  margin-inline: auto;
  padding-bottom: 2rem;
  box-sizing: border-box;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.aua-lobby__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.aua-lobby__nav .aua-btn--nav {
  width: auto;
  flex: 0 0 auto;
  display: inline-flex;
  padding: 0.3rem 0.6rem;
  font-size: clamp(0.58rem, 2.5vw, 0.7rem);
  letter-spacing: 0.07em;
  line-height: 1.2;
}

.aua-lobby__masthead {
  width: 100%;
  min-width: 0;
  padding-bottom: 0.25rem;
}

.aua-lobby__header {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.aua-lobby__body {
  width: 100%;
  min-width: 0;
  padding-top: 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1.5rem;
  flex: 1;
}

.aua-tiles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(0.75rem, 2.5vw, 1.25rem);
  width: 100%;
}

.aua-tile {
  appearance: none;
  position: relative;
  aspect-ratio: 1;
  width: 100%;
  padding: 0;
  border: none;
  background: var(--aua-ink);
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.15s, opacity 0.15s;
}

.aua-tile__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.aua-tile:hover,
.aua-tile:focus {
  outline: none;
  opacity: 0.92;
}

.aua-tile:active {
  transform: scale(0.98);
}

.aua-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
  max-width: 420px;
}

.aua-btn {
  appearance: none;
  border: 2px solid var(--aua-gold);
  background: transparent;
  color: var(--aua-paper);
  font-family: inherit;
  font-size: clamp(0.75rem, 3.5vw, 0.9rem);
  letter-spacing: 0.06em;
  padding: 0.65rem 1rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
}

.aua-btn__glyph {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  object-fit: contain;
  image-rendering: pixelated;
}

.aua-btn__note {
  display: none;
  font-size: clamp(0.45rem, 2vw, 0.55rem);
  letter-spacing: 0.03em;
  color: var(--aua-muted);
  font-weight: normal;
  line-height: 1.2;
}

.aua-btn:hover,
.aua-btn:focus {
  background: var(--aua-gold);
  color: var(--aua-ink);
  outline: none;
}

.aua-btn:active {
  transform: scale(0.98);
}

.aua-btn--menu {
  position: absolute;
  left: 50%;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 12px);
  z-index: 150;
  transform: translateX(-50%);
  width: auto;
  min-width: 140px;
  max-width: min(280px, 70vw);
  padding: 0.65rem 1.5rem;
  pointer-events: auto;
}

.aua-btn--menu:active {
  transform: translateX(-50%) scale(0.98);
}

/* ── Leaderboard ── */

.aua-board-wrap {
  width: 100%;
  text-align: center;
}

.aua-dialog--scores {
  position: relative;
  width: min(480px, 94vw);
  max-height: min(90vh, 720px);
  padding: 0.5rem 0.25rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.aua-board__body {
  min-height: 19rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
}

.aua-board-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.3rem;
  margin-bottom: 1rem;
  width: 100%;
}

.aua-board-tab {
  appearance: none;
  border: 1px solid var(--aua-line);
  background: transparent;
  color: var(--aua-muted);
  font-family: inherit;
  font-size: clamp(0.42rem, 1.85vw, 0.52rem);
  letter-spacing: 0.04em;
  padding: 0.3rem 0.4rem;
  cursor: pointer;
  white-space: nowrap;
  flex: 0 1 auto;
}

.aua-dialog--popup {
  position: relative;
  width: min(420px, calc(100vw - 2rem));
  max-width: min(420px, calc(100vw - 2rem));
  padding-inline: 1.75rem;
  box-sizing: border-box;
}

.aua-dialog--popup .aua-dialog__text {
  text-align: center;
}

.aua-dialog__text {
  text-align: left;
  font-size: clamp(0.6rem, 2.8vw, 0.72rem);
  line-height: 1.65;
  letter-spacing: 0.04em;
  color: var(--aua-paper);
}

.aua-dialog__text p {
  margin: 0 0 0.85rem;
}

.aua-dialog__text p:last-child {
  margin-bottom: 0;
}

.aua-dialog__link {
  color: var(--aua-gold);
  text-decoration: none;
  letter-spacing: 0.06em;
}

.aua-dialog__link:hover {
  opacity: 0.85;
}

.aua-popup__close {
  appearance: none;
  position: absolute;
  top: -0.5rem;
  right: 0.35rem;
  border: none;
  background: transparent;
  color: var(--aua-muted);
  font-family: inherit;
  font-size: clamp(1.2rem, 5vw, 1.6rem);
  line-height: 1;
  padding: 0.25rem 0.5rem;
  cursor: pointer;
}

.aua-popup__close:hover {
  color: var(--aua-gold);
}

#pong-canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  flex-shrink: 1;
  min-height: 0;
  touch-action: none;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

#aua-stage-pong {
  flex-direction: column;
  justify-content: stretch;
  align-items: stretch;
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}

#aua-stage-pong #pong-canvas {
  flex: 1 1 auto;
  width: 100%;
  height: 100%;
  max-height: none;
  min-height: 0;
}

#invaders-canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  flex-shrink: 1;
  min-height: 0;
  touch-action: none;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

#aua-stage-invaders {
  flex-direction: column;
  justify-content: stretch;
  align-items: stretch;
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}

#aua-stage-invaders #invaders-canvas {
  flex: 1 1 auto;
  width: 100%;
  height: 100%;
  max-height: none;
  min-height: 0;
}

#breakout-canvas,
#missile-canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  flex-shrink: 1;
  min-height: 0;
  touch-action: none;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

#aua-stage-breakout,
#aua-stage-missile {
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
  touch-action: none;
}

#aua-stage-breakout #breakout-canvas,
#aua-stage-missile #missile-canvas {
  flex: 0 0 auto;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
}

.aua-board-tab--active {
  border-color: var(--aua-gold);
  color: var(--aua-gold);
}

.aua-board-tab:hover {
  color: var(--aua-gold);
}

#asteroids-canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  flex-shrink: 1;
  min-height: 0;
  touch-action: none;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

#aua-stage-asteroids {
  flex-direction: column;
  justify-content: stretch;
  align-items: stretch;
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}

#aua-stage-asteroids #asteroids-canvas {
  flex: 1 1 auto;
  width: 100%;
  height: 100%;
  max-height: none;
  min-height: 0;
}

@media (hover: none) and (pointer: coarse) {
  #aua-stage-asteroids .aua-btn--menu {
    top: calc(env(safe-area-inset-top, 0px) + 8px);
    right: 10px;
    left: auto;
    bottom: auto;
    transform: none;
    min-width: auto;
    width: auto;
    padding: 0.5rem 0.9rem;
    font-size: clamp(0.65rem, 3vw, 0.8rem);
    z-index: 160;
  }

  #aua-stage-asteroids .aua-btn--menu:active {
    transform: scale(0.98);
  }

  #aua-stage-pong .aua-btn--menu {
    top: calc(env(safe-area-inset-top, 0px) + 8px);
    right: 10px;
    left: auto;
    bottom: auto;
    transform: none;
    min-width: auto;
    width: auto;
    padding: 0.5rem 0.9rem;
    font-size: clamp(0.65rem, 3vw, 0.8rem);
    z-index: 160;
  }

  #aua-stage-pong .aua-btn--menu:active {
    transform: scale(0.98);
  }

  #aua-stage-invaders .aua-btn--menu {
    top: calc(env(safe-area-inset-top, 0px) + 8px);
    right: 10px;
    left: auto;
    bottom: auto;
    transform: none;
    min-width: auto;
    width: auto;
    padding: 0.5rem 0.9rem;
    font-size: clamp(0.65rem, 3vw, 0.8rem);
    z-index: 160;
  }

  #aua-stage-invaders .aua-btn--menu:active {
    transform: scale(0.98);
  }

  /* Breakout/Missile keep MENU at bottom — top-right overlaps AMMO/LIVES HUD */
  #aua-stage-breakout .aua-btn--menu,
  #aua-stage-missile .aua-btn--menu {
    top: auto;
    right: auto;
    left: 50%;
    bottom: calc(env(safe-area-inset-bottom, 0px) + 12px);
    transform: translateX(-50%);
    min-width: auto;
    width: auto;
    padding: 0.5rem 0.9rem;
    font-size: clamp(0.65rem, 3vw, 0.8rem);
    z-index: 160;
  }

  #aua-stage-breakout .aua-btn--menu:active,
  #aua-stage-missile .aua-btn--menu:active {
    transform: translateX(-50%) scale(0.98);
  }

  .aua-btn__note {
    display: block;
    max-width: 9.5rem;
  }
}

.aua-board__hero {
  text-align: center;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--aua-line);
}

.aua-board__hero-label {
  display: block;
  font-size: clamp(0.7rem, 3vw, 0.85rem);
  color: var(--aua-gold);
  letter-spacing: 0.1em;
  margin-bottom: 0.35rem;
}

.aua-board__hero-value {
  display: block;
  font-size: clamp(1.4rem, 7vw, 2rem);
  letter-spacing: 0.05em;
}

.aua-board__heading {
  margin: 0 0 0.75rem;
  font-size: clamp(0.7rem, 3vw, 0.85rem);
  font-weight: normal;
  color: var(--aua-gold);
  letter-spacing: 0.1em;
  text-align: center;
}

.aua-board {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 13.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}

.aua-board__row {
  display: grid;
  grid-template-columns: 2rem 3.5rem 5rem;
  gap: 0.75rem;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0;
  border-bottom: 1px solid #1a1a1a;
  font-size: clamp(0.65rem, 3vw, 0.8rem);
  letter-spacing: 0.04em;
  width: 100%;
  max-width: 16rem;
}

.aua-board__empty {
  display: block;
  text-align: center;
  color: var(--aua-muted);
  border: none;
  padding: 1rem 0;
}

.aua-board__rank {
  color: #666;
  text-align: center;
}

.aua-board__tag {
  color: var(--aua-gold);
  text-align: center;
}

.aua-board__pts {
  text-align: right;
}

/* ── Stage (game) ── */

.aua-stage {
  position: fixed;
  inset: 0;
  background: var(--aua-ink);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

#canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  flex-shrink: 1;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* ── Overlays ── */

.aua-overlay {
  position: fixed;
  inset: 0;
  z-index: 180;
  background: rgba(0, 0, 0, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.aua-overlay--initials {
  z-index: 200;
}

.aua-dialog {
  text-align: center;
  width: 100%;
  max-width: 320px;
}

.aua-dialog.aua-dialog--popup {
  max-width: min(420px, calc(100vw - 2rem));
}

.aua-dialog__title {
  margin: 0 0 1.25rem;
  font-size: clamp(0.85rem, 3.5vw, 1rem);
  font-weight: normal;
  color: var(--aua-gold);
  letter-spacing: 0.08em;
}

.aua-dialog__actions--stack {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.aua-dialog__actions--stack .aua-btn {
  width: 100%;
}

.aua-init__score {
  margin: 0 0 1.25rem;
  font-size: clamp(1.5rem, 7vw, 2.2rem);
  letter-spacing: 0.05em;
}

.aua-init__hint {
  margin: 0 0 1rem;
  font-size: clamp(0.65rem, 3vw, 0.8rem);
  color: var(--aua-gold);
  letter-spacing: 0.08em;
}

.aua-init__slots {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.aua-init__slot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.75rem;
  border: 2px solid var(--aua-gold);
  font-size: clamp(1rem, 5vw, 1.4rem);
  letter-spacing: 0;
}

.aua-init__slot--focus {
  background: rgba(255, 225, 0, 0.15);
  border-color: var(--aua-paper);
}

.aua-init__field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.aua-init__skip {
  appearance: none;
  border: 1px solid #444;
  background: transparent;
  color: #666;
  font-family: inherit;
  font-size: clamp(0.55rem, 2.5vw, 0.65rem);
  letter-spacing: 0.06em;
  padding: 0.5rem 1rem;
  cursor: pointer;
  margin-top: 0.5rem;
}

.aua-init__skip:hover {
  color: var(--aua-gold);
  border-color: var(--aua-gold);
}

@media (max-width: 480px) {
  .aua-stage {
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 8px);
  }

  #aua-stage.aua-stage {
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  #aua-stage-asteroids.aua-stage {
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  #aua-stage-pong.aua-stage {
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  #aua-stage-invaders.aua-stage {
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  #aua-stage-breakout.aua-stage,
  #aua-stage-missile.aua-stage {
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
}