/* ── Design tokens ─────────────────────────────────────────── */

:root {
  --ink:         #1a1916;
  --ink-mid:     #4a4844;
  --device-body: #c4c0b8;
  --device-mid:  #a8a49c;
  --device-dark: #88847e;
  --screen-surr: #262422;
  --btn-pause:   #786060;
  --btn-action:  #5e6878;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  font-family: 'Courier New', Courier, monospace;
  background-color: #0c0c0c;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--ink);
  overflow-x: hidden;
}

.app {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100dvh;
  padding: max(20px, env(safe-area-inset-top, 20px)) 10px
           max(36px, env(safe-area-inset-bottom, 36px));
}

.utility-hidden { display: none; }

/* ── Device body ───────────────────────────────────────────── */

.device {
  position: relative;
  width: min(310px, calc(100vw - 20px));
  background: var(--device-body);
  border: 2px solid var(--ink);
  border-radius: 10px 10px 24px 24px;
  padding: 14px 14px 18px;
  box-shadow: 4px 6px 0 rgba(0, 0, 0, 0.5);
}

/* ── Device header ─────────────────────────────────────────── */

.device-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 4px 10px;
  border-bottom: 1px solid var(--ink-mid);
  margin-bottom: 12px;
}

.device-brand {
  font-size: 0.55rem;
  font-weight: bold;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--ink);
}

.device-led {
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #787c6c;
  border: 1px solid var(--ink-mid);
  animation: led-breathe 2.8s ease-in-out infinite;
}

@keyframes led-breathe {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ── Screen surround & bezel ───────────────────────────────── */

.device-screen-surround {
  background: var(--screen-surr);
  border: 2px solid var(--ink);
  border-radius: 4px;
  padding: 8px;
}

.device-screen-bezel {
  position: relative;
  overflow: hidden;
  line-height: 0;
  border: 1px solid #000;
}

#game-canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* scanlines div kept in HTML but invisible */
.screen-scanlines { display: none; }

/* ── Controls row ──────────────────────────────────────────── */

.device-controls {
  display: flex;
  align-items: center;
  padding: 16px 4px 6px;
}

.controls-left   { flex: 0 0 auto; }
.controls-center { flex: 1; }
.controls-right  { flex: 0 0 auto; }

/* ── D-pad ─────────────────────────────────────────────────── */

.dpad {
  position: relative;
  width: 84px;
  height: 84px;
  touch-action: none;
  user-select: none;
  cursor: pointer;
}

/*
  Cross shape drawn as two stacked pseudo-elements:
  ::before = ink border layer (full cross polygon)
  ::after  = gray fill layer (same polygon, 2px inset)
  Arm spans are kept in HTML for JS compatibility but hidden.
*/
.dpad::before,
.dpad::after {
  content: '';
  position: absolute;
  inset: 0;
  /* 84×84 cross with 28px arm width */
  clip-path: polygon(
    28px 0px,  56px 0px,
    56px 28px, 84px 28px,
    84px 56px, 56px 56px,
    56px 84px, 28px 84px,
    28px 56px, 0px 56px,
    0px 28px,  28px 28px
  );
}

.dpad::before {
  background: var(--ink);
  z-index: 0;
}

.dpad::after {
  /* 2px uniform inset of the outer polygon */
  clip-path: polygon(
    30px 2px,  54px 2px,
    54px 30px, 82px 30px,
    82px 54px, 54px 54px,
    54px 82px, 30px 82px,
    30px 54px, 2px 54px,
    2px 30px,  30px 30px
  );
  background: var(--device-mid);
  z-index: 1;
}

.dpad-arm { display: none; }

/* Arrow indicators */
.dpad-arrow {
  position: absolute;
  width: 0; height: 0;
  z-index: 2;
  opacity: 0.45;
}

.dpad-up, .dpad-down {
  left: 50%; transform: translateX(-50%);
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
}
.dpad-up    { top: 6px;    border-bottom: 6px solid var(--ink); }
.dpad-down  { bottom: 6px; border-top:    6px solid var(--ink); }

.dpad-left, .dpad-right {
  top: 50%; transform: translateY(-50%);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}
.dpad-left  { left: 6px;  border-right: 6px solid var(--ink); }
.dpad-right { right: 6px; border-left:  6px solid var(--ink); }

/* Joystick thumb knob — positioned at center, JS translates it */
.joystick-knob-hidden {
  display: block;
  position: absolute;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--device-dark);
  border: 1.5px solid var(--ink);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.3);
  top: 50%;
  left: 50%;
  margin-top: -15px;
  margin-left: -15px;
  pointer-events: none;
  z-index: 3;
}

/* ── Buttons ───────────────────────────────────────────────── */

.button-cluster {
  display: flex;
  gap: 14px;
  align-items: center;
}

.device-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 2px solid var(--ink);
  cursor: pointer;
  transition: transform 60ms ease, box-shadow 60ms ease;
  -webkit-tap-highlight-color: transparent;
  box-shadow: 2px 3px 0 rgba(0, 0, 0, 0.45);
}

.device-btn:active {
  transform: scale(0.92) translateY(2px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.45);
}

.btn-pause  { background: var(--btn-pause);  transition: opacity 150ms ease, transform 60ms ease, box-shadow 60ms ease; }
.btn-action { background: var(--btn-action); transition: opacity 150ms ease, transform 60ms ease, box-shadow 60ms ease; }
.device-btn:disabled { opacity: 0.4; cursor: default; }

/* ── Device footer / speaker ───────────────────────────────── */

.device-footer {
  display: flex;
  justify-content: center;
  padding-top: 14px;
  border-top: 1px solid var(--device-dark);
  margin-top: 10px;
}

.device-speaker {
  display: flex;
  gap: 5px;
  align-items: center;
}

.device-speaker span {
  display: block;
  width: 2px;
  border-radius: 1px;
  background: var(--device-dark);
}
.device-speaker span:nth-child(1),
.device-speaker span:nth-child(5) { height: 6px; }
.device-speaker span:nth-child(2),
.device-speaker span:nth-child(4) { height: 9px; }
.device-speaker span:nth-child(3) { height: 12px; }

/* ── Canvas greyscale steps ────────────────────────────────── */

canvas.greyscale-1 { filter: grayscale(25%); }
canvas.greyscale-2 { filter: grayscale(50%); }
canvas.greyscale-3 { filter: grayscale(75%); }
canvas.greyscale-4 { filter: grayscale(100%); }

/* ── Canvas transition helpers ─────────────────────────────── */

#game-canvas.greyscale-smooth { transition: filter 1000ms ease; }

#impact-flash {
  position: absolute;
  inset: 0;
  z-index: 15;
  background: rgba(220, 0, 0, 0.62);
  opacity: 0;
  pointer-events: none;
}
#impact-flash.is-active {
  animation: impact-flash-anim 650ms ease-out forwards;
}
@keyframes impact-flash-anim {
  0%   { opacity: 1; }
  40%  { opacity: 0.7; }
  100% { opacity: 0; }
}

#fade-curtain {
  position: absolute;
  inset: 0;
  z-index: 25;
  background: #000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 350ms ease;
}
#fade-curtain.is-active {
  opacity: 1;
  pointer-events: auto;
}

/* ── Overlay screen shared ─────────────────────────────────── */

.title-screen,
.win-screen,
.game-over-screen {
  font-family: 'Courier New', Courier, monospace;
  color: #e0dcd4;
}

.screen-prompt {
  margin: 14px 0 0;
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(224, 220, 212, 0.55);
  animation: prompt-pulse 1.4s ease-in-out infinite;
}

.play-again-prompt {
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  margin: 0;
  text-align: center;
  font-family: 'Press Start 2P', monospace;
  font-size: 12px;
  letter-spacing: 0.15em;
  color: #f8e818;
  text-shadow: 1px 0 0 #000, -1px 0 0 #000, 0 1px 0 #000, 0 -1px 0 #000;
  animation: prompt-pulse 1.4s ease-in-out infinite;
}

@keyframes prompt-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.15; }
}

@keyframes prompt-appear {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── Title screen ──────────────────────────────────────────── */

.title-screen {
  position: absolute;
  inset: 0;
  z-index: 10;
  background: transparent;
  transform: translateY(0);
  transition: transform 600ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.title-screen.is-dismissing {
  transform: translateY(-100%);
  pointer-events: none;
}

.title-cutscene {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: pixelated;
  object-fit: fill;
}

/* Arcade-style start prompt — absolute so it never shifts the scene */
#title-prompt {
  position: absolute;
  top: 66.67%;
  transform: translateY(-50%);
  left: 0;
  right: 0;
  margin: 0;
  text-align: center;
  font-family: 'Press Start 2P', monospace;
  font-size: 18px;
  letter-spacing: 0.15em;
  color: #f8e818;
  /* 1px pixel-outline for readability over any background color */
  text-shadow:
    1px  0   0 #000,
   -1px  0   0 #000,
    0    1px 0 #000,
    0   -1px 0 #000;
}

/* ── Win screen ────────────────────────────────────────────── */

.win-screen {
  position: absolute;
  inset: 0;
  z-index: 10;
  transform: translateY(-100%);
  pointer-events: none;
  transition: transform 700ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.win-screen.is-active { transform: translateY(0); pointer-events: auto; }
.win-screen.is-hiding { transform: translateY(-100%); pointer-events: none; transition: transform 500ms ease-in; }

.win-cutscene {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: pixelated;
  object-fit: fill;
}

.win-stats {
  position: absolute;
  bottom: 32px;
  left: 0;
  right: 0;
  text-align: center;
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  line-height: 2.2;
  color: #e8e8d8;
  text-shadow: 1px 0 0 #000, -1px 0 0 #000, 0 1px 0 #000, 0 -1px 0 #000;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 220ms ease-out, transform 220ms ease-out;
}
.win-screen.is-stats-visible .win-stats {
  opacity: 1;
  transform: translateY(0);
}
.win-stats p      { margin: 0; }
.win-stats strong { color: #f8e818; }

/* ── Game over screen ──────────────────────────────────────── */

.game-over-screen {
  position: absolute;
  inset: 0;
  z-index: 10;
  transform: translateY(-100%);
  pointer-events: none;
  transition: transform 700ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.game-over-screen.is-visible { transform: translateY(0); pointer-events: auto; }
.game-over-screen.is-hiding  { transform: translateY(-100%); pointer-events: none; transition: transform 500ms ease-in; }

.game-over-stats {
  position: absolute;
  bottom: 32px;
  left: 0;
  right: 0;
  text-align: center;
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  line-height: 2.2;
  color: #e8e8d8;
  text-shadow: 1px 0 0 #000, -1px 0 0 #000, 0 1px 0 #000, 0 -1px 0 #000;
}
.game-over-stats p      { margin: 0; }
.game-over-stats strong { color: #f8e818; }

/* ── Pause screen ──────────────────────────────────────────── */

.pause-screen {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.38);
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
}

.pause-screen.is-active {
  opacity: 1;
  pointer-events: auto;
}

/*
  Warm parchment panel — pops against the cold dark grayscale canvas.
  Classic RPG dialog box: border → 1px panel-color gap → outer border → glow.
*/
.pause-panel {
  background: #e0cc88;
  border: 2px solid #3a2808;
  box-shadow:
    0 0 0 1px #e0cc88,
    0 0 0 3px #3a2808,
    0 0 18px 6px rgba(210, 168, 48, 0.45),
    3px 6px 0 rgba(0, 0, 0, 0.9);
  padding: 11px 16px 13px;
  width: 156px;
  max-width: calc(100% - 28px);
  image-rendering: pixelated;
}

.pause-title {
  font-family: 'Press Start 2P', monospace;
  font-size: 9px;
  font-weight: normal;
  color: #1c1004;
  text-transform: uppercase;
  text-align: center;
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 2px solid #7a5e20;
  line-height: 1;
}

.pause-message {
  font-family: 'Press Start 2P', monospace;
  font-size: 6px;
  color: #4a3010;
  margin: 0 0 10px;
  line-height: 2;
  text-align: center;
}

.pause-nav {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.pause-option {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  color: #8a7040;
  line-height: 1;
}

.pause-option.is-selected {
  color: #100800;
}

.pause-arrow {
  font-size: 5px;
  color: #c02800;
  opacity: 0;
  flex-shrink: 0;
  width: 7px;
}

.pause-option.is-selected .pause-arrow {
  opacity: 1;
  animation: pause-tick 0.75s ease-in-out infinite;
}

@keyframes pause-tick {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.1; }
}

/* ── 2× scale on large screens ─────────────────────────────── */

@media (min-width: 680px) {
  .device {
    zoom: 2;
  }
}