:root {
  --yellow: #ffe600;
  --blue: #00e5ff;
  --pink: #ff2e9a;
  --green: #00ff88;
  --bg: #05050a;
  --card-bg: #0d0d1f;
  --border: #1e1e3a;
  --font-h: "Press Start 2P", monospace;
  --font-b: "Inter", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: #e0e0e0;
  font-family: var(--font-b);
  font-size: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  overflow-x: hidden;
  touch-action: none;
}

/* ── Screens ── */
.screen {
  display: none;
  width: 100%;
  max-width: 660px;
  flex-direction: column;
  align-items: center;
  padding: 20px 18px 36px;
  animation: fadeIn 0.3s ease;
}
.screen.active {
  display: flex;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Logo ── */
.logo-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
}
.logo-pac {
  width: 54px;
  height: 54px;
  filter: drop-shadow(0 0 12px var(--yellow));
  animation: pacWobble 2s ease-in-out infinite;
}
@keyframes pacWobble {
  0%,
  100% {
    transform: rotate(-10deg);
  }
  50% {
    transform: rotate(10deg);
  }
}
.logo {
  font-family: var(--font-h);
  font-size: 2.2rem;
  letter-spacing: 4px;
  color: var(--yellow);
  text-shadow:
    0 0 10px var(--yellow),
    0 0 30px rgba(255, 230, 0, 0.4);
  line-height: 1.1;
}
.subtitle {
  font-family: var(--font-h);
  font-size: 0.5rem;
  letter-spacing: 3px;
  color: var(--blue);
  text-shadow: 0 0 8px var(--blue);
  margin: 12px 0 24px;
}

/* ── High score ── */
.hs-box {
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--pink);
  border-radius: 8px;
  padding: 10px 24px;
  margin-bottom: 28px;
  box-shadow: 0 0 14px rgba(255, 46, 154, 0.15) inset;
}
.hs-label {
  font-family: var(--font-h);
  font-size: 0.42rem;
  color: #666;
  letter-spacing: 2px;
}
.hs-value {
  font-family: var(--font-h);
  font-size: 1rem;
  color: var(--pink);
  text-shadow: 0 0 8px var(--pink);
}

/* ── Menu nav ── */
.menu-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
}
.menu-btn {
  background: var(--card-bg);
  border: 2px solid var(--border);
  color: #999;
  width: 280px;
  padding: 15px 20px;
  font-family: var(--font-h);
  font-size: 0.58rem;
  letter-spacing: 1.5px;
  border-radius: 8px;
  cursor: pointer;
  transition:
    border-color 0.15s,
    color 0.15s,
    background 0.15s,
    box-shadow 0.15s;
}
.menu-btn:hover,
.menu-btn:focus {
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.2);
  outline: none;
}
.menu-btn.primary {
  border-color: var(--yellow);
  color: var(--yellow);
  text-shadow: 0 0 6px rgba(255, 230, 0, 0.4);
}
.menu-btn.primary:hover {
  background: var(--yellow);
  color: #000;
  box-shadow: 0 0 28px var(--yellow);
}
.menu-btn.back-btn {
  margin-top: 20px;
  width: 180px;
  font-size: 0.5rem;
}

/* ── Ghost row on menu ── */
.menu-ghosts {
  display: flex;
  gap: 20px;
  margin-top: 32px;
  opacity: 0.7;
}
.menu-ghosts svg {
  animation: ghostBob 1.4s ease-in-out infinite;
}
.menu-ghosts svg:nth-child(1) {
  animation-delay: 0s;
}
.menu-ghosts svg:nth-child(2) {
  animation-delay: 0.2s;
}
.menu-ghosts svg:nth-child(3) {
  animation-delay: 0.4s;
}
.menu-ghosts svg:nth-child(4) {
  animation-delay: 0.6s;
}
@keyframes ghostBob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

/* ── Classic title screen ── */
#menuScreen {
  position: relative;
  width: 100%;
  max-width: none;
  min-height: 100vh;
  min-height: 100svh;
  padding: 56px 24px 24px;
  overflow: hidden;
  justify-content: center;
  background: #030303;
  color: #fff;
}

.maze-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.92;
  pointer-events: none;
}

.title-meta {
  position: absolute;
  z-index: 1;
  top: 19px;
  right: 26px;
  left: 26px;
  display: flex;
  justify-content: space-between;
  color: #777;
  font-family: var(--font-h);
  font-size: 0.42rem;
  letter-spacing: 1px;
}

.title-best strong {
  margin-left: 8px;
  color: var(--yellow);
  font-size: 0.55rem;
}

.title-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: min(100%, 900px);
  margin: auto;
}

.brand-frame {
  display: grid;
  width: min(740px, 90vw);
  min-height: 142px;
  padding: 24px clamp(14px, 3vw, 34px);
  place-items: center;
  border: 7px solid #ed1c18;
  border-radius: 19px;
  background: #f28b17;
  box-shadow:
    0 0 0 4px #111,
    inset 0 0 0 5px #f7bf36;
}

#menuScreen .logo {
  color: #ffe91c;
  font-family: var(--font-h);
  font-size: clamp(1.6rem, 7.2vw, 5rem);
  letter-spacing: 0;
  line-height: 1.25;
  text-align: center;
  -webkit-text-stroke: 2px #17120c;
  text-shadow: 5px 5px 0 #17120c;
}

.title-lineup {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: clamp(10px, 2.5vw, 30px);
  margin: clamp(25px, 6vh, 42px) 0 clamp(20px, 4vh, 34px);
}

.title-pac,
.title-ghost {
  position: relative;
  display: block;
  width: clamp(46px, 8vw, 82px);
  aspect-ratio: 1;
  flex: none;
  image-rendering: pixelated;
}

.title-pac {
  background: #ffe600;
  clip-path: polygon(
    25% 0, 75% 0, 75% 8%, 88% 8%, 88% 20%, 100% 20%, 100% 38%,
    63% 50%, 100% 62%, 100% 80%, 88% 80%, 88% 92%, 75% 92%, 75% 100%,
    25% 100%, 25% 92%, 13% 92%, 13% 80%, 0 80%, 0 20%, 13% 20%,
    13% 8%, 25% 8%
  );
}

.title-ghost {
  background: var(--ghost-color);
  clip-path: polygon(
    25% 0, 75% 0, 75% 8%, 88% 8%, 88% 20%, 100% 20%, 100% 80%,
    88% 80%, 88% 100%, 63% 100%, 63% 88%, 38% 88%, 38% 100%,
    13% 100%, 13% 88%, 0 88%, 0 20%, 13% 20%, 13% 8%, 25% 8%
  );
}

.title-ghost::before,
.title-ghost::after {
  position: absolute;
  content: "";
}

.title-ghost::before {
  top: 30%;
  left: 21%;
  width: 58%;
  height: 28%;
  background: linear-gradient(90deg, #fff 0 40%, transparent 40% 60%, #fff 60%);
}

.title-ghost::after {
  top: 40%;
  left: 34%;
  width: 35%;
  height: 13%;
  background: linear-gradient(90deg, #192cce 0 28%, transparent 28% 72%, #192cce 72%);
}

.ghost-blinky {
  --ghost-color: #f51f16;
}

.ghost-pinky {
  --ghost-color: #f28bbd;
}

.ghost-inky {
  --ghost-color: #19b9e9;
}

.ghost-clyde {
  --ghost-color: #f5a51a;
}

#menuScreen .menu-nav {
  align-items: center;
  gap: 8px;
  width: min(100%, 560px);
}

#menuScreen .menu-btn {
  width: auto;
  padding: 11px 14px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #aaa;
  font-family: var(--font-h);
  font-size: 0.48rem;
  letter-spacing: 1px;
  text-align: center;
}

#menuScreen .menu-btn.primary {
  padding: 13px 18px;
  color: var(--yellow);
  text-shadow: none;
}

#menuScreen .menu-btn:hover,
#menuScreen .menu-btn:focus-visible {
  border: 0;
  background: transparent;
  box-shadow: none;
  color: #fff;
  outline: 1px dotted var(--yellow);
  outline-offset: 2px;
}

.title-menu-secondary {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 12px;
}

.title-credit {
  margin-top: 17px;
  color: #e1c51a;
  font-family: var(--font-h);
  font-size: 0.4rem;
  letter-spacing: 0;
  text-align: center;
}

#menuScreen.active ~ footer {
  display: none;
}

@media (max-width: 520px) {
  #menuScreen {
    padding: 50px 14px 18px;
  }

  .title-meta {
    top: 16px;
    right: 16px;
    left: 16px;
    font-size: 0.36rem;
  }

  .brand-frame {
    min-height: 98px;
    padding: 17px 9px;
    border-width: 5px;
    border-radius: 13px;
    box-shadow:
      0 0 0 3px #111,
      inset 0 0 0 4px #f7bf36;
  }

  #menuScreen .logo {
    font-size: clamp(1.55rem, 8.1vw, 2.55rem);
    -webkit-text-stroke-width: 1px;
    text-shadow: 3px 3px 0 #17120c;
  }

  .title-lineup {
    gap: clamp(7px, 2vw, 11px);
    margin: 34px 0 26px;
  }

  .title-pac,
  .title-ghost {
    width: clamp(42px, 13vw, 62px);
  }

  #menuScreen .menu-btn {
    padding: 9px 8px;
    font-size: 0.37rem;
  }

  #menuScreen .menu-btn.primary {
    padding: 11px 14px;
    font-size: 0.43rem;
  }

  .title-menu-secondary {
    gap: 2px 8px;
  }

  .title-credit {
    font-size: 0.33rem;
  }
}

@media (max-height: 560px) {
  #menuScreen {
    padding-top: 42px;
    padding-bottom: 12px;
  }

  .brand-frame {
    min-height: 100px;
  }

  .title-lineup {
    margin-top: 20px;
    margin-bottom: 17px;
  }

  .title-pac,
  .title-ghost {
    width: 54px;
  }

  .title-credit {
    margin-top: 8px;
  }
}

/* ── Level grid ── */
.level-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  width: 100%;
  max-width: 380px;
  margin: 24px 0 12px;
}
.level-cell {
  border: 2px solid var(--blue);
  color: var(--blue);
  font-family: var(--font-h);
  font-size: 0.7rem;
  padding: 14px 4px;
  text-align: center;
  border-radius: 8px;
  cursor: pointer;
  transition:
    background 0.12s,
    box-shadow 0.12s;
}
.level-cell:hover {
  background: var(--blue);
  color: #000;
  box-shadow: 0 0 16px var(--blue);
}
.level-cell.locked {
  border-color: #222;
  color: #333;
  cursor: not-allowed;
  font-size: 1rem;
}
.level-cell.locked:hover {
  background: transparent;
  box-shadow: none;
}

/* ── How to play ── */
.howto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  width: 100%;
  margin: 18px 0 8px;
}
@media (max-width: 560px) {
  .howto-grid {
    grid-template-columns: 1fr;
  }
}

.howto-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 14px;
}
.howto-card h3 {
  font-family: var(--font-h);
  font-size: 0.52rem;
  color: var(--yellow);
  text-shadow: 0 0 6px rgba(255, 230, 0, 0.3);
  letter-spacing: 2px;
  margin-bottom: 14px;
}
kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  background: #1a1a2e;
  border: 1px solid #3a3a5a;
  border-bottom: 3px solid #111;
  border-radius: 5px;
  font-family: var(--font-h);
  font-size: 0.55rem;
  color: #ddd;
  box-shadow:
    0 2px 0 #000,
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  user-select: none;
}
kbd.arrow {
  min-width: 30px;
  height: 30px;
}
.key-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.key-row {
  display: flex;
  gap: 5px;
}
.key-or {
  font-size: 0.7rem;
  color: #444;
  margin: 4px 0;
}
.key-note {
  font-size: 0.75rem;
  color: #777;
  margin-top: 10px;
  text-align: center;
}
.collect-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 10px 0;
  font-size: 0.8rem;
  color: #aaa;
}
.collect-row strong {
  display: block;
  color: #fff;
  font-size: 0.85rem;
}
.pts {
  font-size: 0.75rem;
  color: var(--yellow);
}
.ghost-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 8px 0;
  font-size: 0.78rem;
  color: #888;
  line-height: 1.5;
}
.ghost-row strong {
  display: block;
}
.pu-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.pu-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  color: #888;
  line-height: 1.5;
}
.pu-list strong {
  display: block;
  color: #ddd;
  font-size: 0.82rem;
}
.pu-icon {
  font-size: 1.3rem;
  width: 28px;
  text-align: center;
  flex-shrink: 0;
  filter: drop-shadow(0 0 4px currentColor);
}

/* ── Game screen ── */
#gameScreen {
  padding: 0;
  max-width: 100%;
  width: 100%;
}

#hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 660px;
  margin: 0 auto;
  padding: 8px 12px 6px;
  gap: 8px;
  flex-wrap: wrap;
}
.hud-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hud-label {
  font-family: var(--font-h);
  font-size: 0.4rem;
  color: #555;
  letter-spacing: 1px;
  margin-bottom: 2px;
}
.hud-value {
  font-family: var(--font-h);
  font-size: 0.8rem;
  color: var(--yellow);
  text-shadow: 0 0 6px rgba(255, 230, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 4px;
}
.life-icon {
  width: 16px;
  height: 16px;
  filter: drop-shadow(0 0 4px var(--yellow));
}

#pauseBtn {
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: #888;
  border-radius: 6px;
  padding: 6px 12px;
  font-family: var(--font-h);
  font-size: 0.45rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition:
    color 0.1s,
    border-color 0.1s;
}
#pauseBtn:hover {
  color: var(--blue);
  border-color: var(--blue);
}

/* ── Canvas wrapper ── */
#canvasWrapper {
  position: relative;
  width: 100%;
  max-width: 660px;
  margin: 0 auto;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  background: #000;
  border: 2px solid #1a1aff;
  box-shadow: 0 0 30px rgba(0, 0, 200, 0.5);
  image-rendering: pixelated;
}

#overlayMsg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  font-family: var(--font-h);
  font-size: 1rem;
  color: var(--yellow);
  text-shadow: 0 0 14px var(--yellow);
  display: none;
  pointer-events: none;
  z-index: 10;
  white-space: nowrap;
  letter-spacing: 2px;
  animation: popIn 0.2s ease;
}
@keyframes popIn {
  from {
    transform: translate(-50%, -50%) scale(0.75);
    opacity: 0;
  }
  to {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
}

/* ── Mobile D-pad ── */
#touchControls {
  display: none;
  grid-template-columns: 72px 72px 72px;
  grid-template-rows: 72px 72px 72px;
  gap: 8px;
  margin: 16px auto 0;
  user-select: none;
  touch-action: none;
}
#touchControls button {
  background: rgba(0, 229, 255, 0.1);
  border: 2px solid rgba(0, 229, 255, 0.4);
  color: var(--blue);
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  transition: background 0.08s;
  -webkit-tap-highlight-color: transparent;
}
#touchControls button:active,
#touchControls button.pressed {
  background: rgba(0, 229, 255, 0.35);
  border-color: var(--blue);
}
.tc-up {
  grid-column: 2;
  grid-row: 1;
}
.tc-left {
  grid-column: 1;
  grid-row: 2;
}
.tc-right {
  grid-column: 3;
  grid-row: 2;
}
.tc-down {
  grid-column: 2;
  grid-row: 3;
}

/* Show D-pad on touch devices or narrow screens */
@media (max-width: 700px), (pointer: coarse) {
  #touchControls {
    display: grid;
  }
}

/* ── Game over ── */
.gameover-label {
  font-family: var(--font-h);
  font-size: 0.45rem;
  color: #444;
  letter-spacing: 2px;
  margin: 20px 0 8px;
}
#finalScore {
  font-family: var(--font-h);
  font-size: 2rem;
  color: var(--yellow);
  text-shadow: 0 0 14px var(--yellow);
  margin-bottom: 14px;
}
#newHsMsg {
  font-family: var(--font-h);
  font-size: 0.52rem;
  color: var(--green);
  text-shadow: 0 0 10px var(--green);
  letter-spacing: 2px;
  margin-bottom: 18px;
  animation: flash 0.6s ease-in-out infinite alternate;
}
@keyframes flash {
  from {
    opacity: 1;
  }
  to {
    opacity: 0.3;
  }
}

footer {
  color: #222;
  font-size: 0.6rem;
  letter-spacing: 1px;
  margin: 28px 0 16px;
  text-align: center;
}

/* ── Responsive font scaling ── */
@media (max-width: 480px) {
  .logo {
    font-size: 1.5rem;
    letter-spacing: 2px;
  }
  .menu-btn {
    width: 90%;
    font-size: 0.52rem;
  }
  .hud-value {
    font-size: 0.65rem;
  }
  .hud-label {
    font-size: 0.35rem;
  }
}
/* ── Pause Panel ── */
#pausePanel {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  z-index: 200;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
}
#pausePanel.active {
  display: flex;
}

#pausePanel h2 {
  font-family: var(--font-h);
  font-size: 1.1rem;
  color: var(--yellow);
  text-shadow: 0 0 14px var(--yellow);
  letter-spacing: 4px;
  margin-bottom: 8px;
}
.pause-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.pause-setting-btn {
  background: var(--card-bg);
  border: 2px solid var(--border);
  color: #aaa;
  width: 260px;
  padding: 14px;
  font-family: var(--font-h);
  font-size: 0.55rem;
  letter-spacing: 1.5px;
  border-radius: 8px;
  cursor: pointer;
  transition:
    border-color 0.15s,
    color 0.15s;
}
.pause-setting-btn:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.pause-setting-btn.active-on {
  border-color: var(--green);
  color: var(--green);
}
.pause-resume-btn {
  background: transparent;
  border: 2px solid var(--yellow);
  color: var(--yellow);
  width: 260px;
  padding: 14px;
  font-family: var(--font-h);
  font-size: 0.6rem;
  letter-spacing: 2px;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 8px;
  transition:
    background 0.15s,
    color 0.15s;
}
.pause-resume-btn:hover {
  background: var(--yellow);
  color: #000;
}

.pause-menu-btn {
  background: transparent;
  border: 2px solid var(--green);
  color: var(--green);
  width: 260px;
  padding: 14px;
  font-family: var(--font-h);
  font-size: 0.55rem;
  letter-spacing: 2px;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 4px;
  transition:
    background 0.15s,
    color 0.15s,
    border-color 0.15s;
}

.pause-menu-btn:hover {
  background: var(--green);
  color: #000;
  border-color: var(--green);
}