/* Retro Monochrome Design System */

:root {
  --font-pixel: 'DotGothic16', sans-serif;
  --font-retro-gothic: 'DotGothic16', sans-serif;

  /* Strict Black & White Palette */
  --color-black: #000000;
  --color-dark: #0d0d0d;
  --color-white: #ffffff;
  --color-grey-dark: #333333;
  --color-grey-light: #cccccc;
  
  --arcade-glow: 0 0 20px rgba(255, 255, 255, 0.15);
}

/* Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--color-black);
  color: var(--color-white);
  font-family: var(--font-retro-gothic);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  position: relative;
}

/* Ambient CRT flicker background */
.screen-flicker {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(255, 255, 255, 0.002);
  pointer-events: none;
  z-index: 1000;
  animation: crt-flicker 0.15s infinite;
}

@keyframes crt-flicker {
  0% { opacity: 0.98; }
  50% { opacity: 1; }
  100% { opacity: 0.99; }
}

/* Arcade Cabinet Shell */
.arcade-cabinet {
  width: 100%;
  max-width: 440px;
  padding: 24px 20px;
  background: var(--color-dark);
  border: 4px solid var(--color-white);
  border-radius: 12px;
  box-shadow: 0 20px 0 var(--color-black), 0 20px 40px rgba(255, 255, 255, 0.1), var(--arcade-glow);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

@media (max-width: 480px) {
  .arcade-cabinet {
    max-width: 360px;
    padding: 16px 12px;
    border-radius: 0;
    border-width: 3px;
  }
}

/* Header scores */
.arcade-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  border-bottom: 2px dashed var(--color-white);
  padding-bottom: 12px;
}

.game-title {
  font-family: var(--font-pixel);
  font-size: 1.5rem;
  letter-spacing: 2px;
}

.arcade-info {
  display: flex;
  width: 100%;
  justify-content: space-around;
  font-family: var(--font-pixel);
  font-size: 0.65rem;
}

.info-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.info-label {
  color: var(--color-grey-light);
}

.info-val {
  font-size: 0.9rem;
}

/* Target Panel indicators */
.target-panel {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.target-box {
  flex: 1;
  background: var(--color-black);
  border: 2px solid var(--color-white);
  padding: 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.highlight-box {
  outline: 2px solid var(--color-white);
  outline-offset: -6px;
}

.target-label {
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  color: var(--color-grey-light);
}

.target-val-none {
  font-family: var(--font-pixel);
  font-size: 1rem;
  color: var(--color-grey-light);
}

.target-val-any {
  font-family: var(--font-pixel);
  font-size: 1rem;
  animation: blink 1s step-end infinite;
}

.target-val-active {
  font-family: var(--font-pixel);
  font-size: 1.2rem;
  font-weight: bold;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* Arcade Screen Wrapper & Monitor */
.arcade-screen-wrapper {
  background: var(--color-black);
  padding: 10px;
  border: 4px double var(--color-white);
}

.arcade-screen {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  background: #08080c;
  overflow: hidden;
}

/* Canvas config */
#game-canvas {
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: pixelated;
}

/* CRT Scanlines Overlay */
.scanlines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%,
    rgba(0, 0, 0, 0.18) 50%
  );
  background-size: 100% 4px;
  pointer-events: none;
  z-index: 5;
}

/* Screen Menu Overlay */
.menu-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 4;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.menu-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.menu-content {
  width: 85%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.menu-title {
  font-family: var(--font-pixel);
  font-size: 1.1rem;
  letter-spacing: 1px;
}

.menu-title.blinking {
  animation: blink 1.2s step-end infinite;
}

.gameover-text {
  border: 2px solid var(--color-white);
  padding: 6px 12px;
  animation: shake 0.3s infinite;
}

@keyframes shake {
  0% { transform: translate(1px, 1px) rotate(0deg); }
  10% { transform: translate(-1px, -2px) rotate(-1deg); }
  20% { transform: translate(-3px, 0px) rotate(1deg); }
  30% { transform: translate(0px, 2px) rotate(0deg); }
  40% { transform: translate(1px, -1px) rotate(1deg); }
  50% { transform: translate(-1px, 2px) rotate(-1deg); }
  60% { transform: translate(-3px, 1px) rotate(0deg); }
  70% { transform: translate(2px, 1px) rotate(-1deg); }
  80% { transform: translate(-1px, -1px) rotate(1deg); }
  90% { transform: translate(2px, 2px) rotate(0deg); }
  100% { transform: translate(1px, -2px) rotate(-1deg); }
}

.menu-desc {
  font-size: 0.85rem;
  line-height: 1.6;
}

.menu-desc-hint {
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--color-grey-light);
  border: 1px dashed var(--color-grey-dark);
  padding: 6px;
  width: 100%;
}

.result-board {
  width: 100%;
  border: 2px dashed var(--color-white);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  text-align: left;
}

.result-highlight {
  font-size: 0.85rem;
  float: right;
  border-bottom: 2px solid var(--color-white);
  padding-left: 10px;
}

/* Button mechanics */
.arcade-btn-primary {
  background: var(--color-white);
  color: var(--color-black);
  border: 2px solid var(--color-black);
  outline: 2px solid var(--color-white);
  padding: 10px 16px;
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 4px 4px 0px var(--color-grey-dark);
  transition: all 0.05s ease;
  margin-top: 8px;
}

.arcade-btn-primary:hover {
  background: var(--color-black);
  color: var(--color-white);
  outline-color: var(--color-white);
  box-shadow: 2px 2px 0px var(--color-white);
}

.arcade-btn-primary:active {
  transform: translate(3px, 3px);
  box-shadow: 1px 1px 0px var(--color-white);
}

.arcade-btn-secondary {
  background: var(--color-black);
  color: var(--color-white);
  border: 2px solid var(--color-white);
  padding: 8px 12px;
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  cursor: pointer;
  transition: all 0.1s ease;
}

.arcade-btn-secondary:hover {
  background: var(--color-white);
  color: var(--color-black);
}

/* Footer panel controls */
.arcade-controls {
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-top: 2px dashed var(--color-white);
  padding-top: 16px;
}

.footer-buttons {
  display: flex;
  justify-content: center;
}

.arcade-instructions {
  background: var(--color-black);
  border: 1px solid var(--color-grey-dark);
  padding: 12px;
}

.arcade-instructions h3 {
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  margin-bottom: 8px;
  color: var(--color-grey-light);
}

.arcade-instructions p {
  font-size: 0.75rem;
  line-height: 1.5;
  margin-bottom: 4px;
}

.arcade-instructions p:last-child {
  margin-bottom: 0;
}

.warning-text {
  color: var(--color-grey-light);
  border-left: 2px solid var(--color-white);
  padding-left: 6px;
  font-size: 0.7rem !important;
  margin-top: 6px;
}

.hidden {
  display: none !important;
}