/* ==========================================================================
   NEON KATANAS: CYBER-SLASHER - retro-arcade styling
   ========================================================================== */

/* Custom variables & HSL Color Palette */
:root {
  --bg-color: hsl(225, 15%, 4%);             /* Dystopian Cyber-Black (#090a0f) */
  --neon-cyan: hsl(180, 100%, 50%);          /* Neon Cyan (#00ffff) */
  --neon-cyan-glow: hsla(180, 100%, 50%, 0.7);
  --neon-magenta: hsl(330, 100%, 50%);       /* Neon Pink/Magenta (#ff0080) */
  --neon-magenta-glow: hsla(330, 100%, 50%, 0.7);
  --neon-purple: hsl(275, 100%, 55%);        /* Electric Purple (#aa33ff) */
  --neon-purple-glow: hsla(275, 100%, 55%, 0.7);
  --neon-green: hsl(120, 100%, 50%);         /* Bright Green (#00ff00) */
  --neon-green-glow: hsla(120, 100%, 50%, 0.7);
  --neon-red: hsl(0, 100%, 50%);             /* Warning Orange/Red (#ff0000) */
  --neon-red-glow: hsla(0, 100%, 50%, 0.7);
  
  --terminal-font: 'Share Tech Mono', monospace;
  --title-font: 'Orbitron', sans-serif;
  --body-font: 'Outfit', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

body {
  background-color: #030307;
  background-image: radial-gradient(circle at center, #11121d 0%, #030307 100%);
  color: #ffffff;
  font-family: var(--body-font);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  overflow: hidden;
}

/* ==========================================================================
   CRT ARCADE CABINET MONITOR FRAME
   ========================================================================== */

.crt-container {
  position: relative;
  width: calc(100% - 20px);
  max-width: 480px; /* Centered arcade viewport */
  height: 94vh;
  min-height: 640px;
  margin: auto;
  overflow: hidden;
  background-color: var(--bg-color);
  display: flex;
  flex-direction: column;
  
  /* Physical Cabinet Bezel Border emulation */
  border: 24px solid #141419;
  outline: 4px solid #08090d;
  border-radius: 35px;
  box-shadow: 
    inset 0 0 35px rgba(0, 0, 0, 0.95), /* Inner bezel shadow recess */
    0 15px 35px rgba(0, 0, 0, 0.85),    /* External cabinet gravity shadow */
    0 0 40px rgba(0, 255, 255, 0.08);   /* Neon environment glow bleed */
}

/* Curved screen bezel overlay */
.crt-container::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border-radius: 12px;
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.9);
  pointer-events: none;
  z-index: 1001; /* Layer over screens but below critical scanlines */
}

/* Make canvas fill container screen */
#gameCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* ==========================================================================
   CRT EFFECTS (SCANLINES, FLICKER, REFLECTIONS, VIGNETTES)
   ========================================================================== */

/* Scanlines overlay */
.crt-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%,
    rgba(0, 0, 0, 0.28) 50%
  );
  background-size: 100% 4px; /* Scanline spacing */
  pointer-events: none;
  z-index: 1002;
  opacity: 0.9;
}

/* Phosphor Glow Vignette & Glass Reflection */
.crt-reflection-vignette {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* Radial vignette (phosphor falloff) and diagonal light reflection */
  background: 
    radial-gradient(circle, rgba(9, 10, 15, 0) 65%, rgba(9, 10, 15, 0.85) 100%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 50%);
  pointer-events: none;
  z-index: 1003;
}

/* Power Flicker animation overlay */
.crt-flicker {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 255, 255, 0.003);
  pointer-events: none;
  z-index: 998;
  animation: crt-power-flicker 0.15s infinite;
}

@keyframes crt-power-flicker {
  0% { opacity: 0.98; background: rgba(0, 255, 255, 0.002); }
  50% { opacity: 1.0; background: rgba(0, 255, 255, 0.007); }
  100% { opacity: 0.99; background: rgba(0, 255, 255, 0.002); }
}

/* ==========================================================================
   RETRO-FUTURISTIC HUD OVERLAY
   ========================================================================== */

#hud {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 15px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  pointer-events: none;
  z-index: 10;
  background: transparent;
}

/* HUD Panels */
.hud-panel {
  position: relative;
  display: flex;
  background: rgba(9, 10, 15, 0.85);
  border: 1px solid var(--neon-cyan);
  padding: 10px 14px;
  font-family: var(--terminal-font);
  box-shadow: 
    0 0 15px rgba(0, 255, 255, 0.15), 
    inset 0 0 15px rgba(0, 255, 255, 0.1);
  backdrop-filter: blur(2px);
  pointer-events: none;
}

/* Corner bracket details */
.hud-panel::before, .hud-panel::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  border: 2px solid var(--neon-cyan);
  box-shadow: 0 0 8px var(--neon-cyan-glow);
}
.hud-panel::before {
  top: -2px;
  left: -2px;
  border-right: none;
  border-bottom: none;
}
.hud-panel::after {
  bottom: -2px;
  right: -2px;
  border-left: none;
  border-top: none;
}

#hudTopPanel {
  width: 100%;
  justify-content: space-between;
  align-items: center;
  border-radius: 4px;
}

#hudBottomPanel {
  width: 100%;
  flex-direction: column;
  gap: 10px;
  border-radius: 4px;
  margin-bottom: 5px;
}

.hud-item {
  display: flex;
  align-items: center;
}

.hud-item .label {
  color: #8888aa;
  margin-right: 6px;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
}

.hud-item span {
  font-weight: bold;
  font-size: 0.95rem;
}

/* Score, Bytes, Speed and Cooldown colors */
#hudScore {
  color: var(--neon-green);
  text-shadow: 0 0 8px var(--neon-green-glow);
}

#hudBytes {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px var(--neon-cyan-glow);
}

#hudSpeed {
  color: var(--neon-magenta);
  text-shadow: 0 0 8px var(--neon-magenta-glow);
}

/* Custom Status Bars for HUD (Shield & Dash) */
.hud-bar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.hud-bar-container .label {
  color: #8888aa;
  font-size: 0.75rem;
  width: 60px;
  letter-spacing: 1px;
}

.bar-outer {
  flex-grow: 1;
  height: 12px;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid var(--neon-cyan);
  padding: 1px;
  border-radius: 3px;
  margin: 0 12px;
  box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.8);
  overflow: hidden;
  position: relative;
}

.shield-outer {
  border-color: var(--neon-cyan);
}

.dash-outer {
  border-color: var(--neon-cyan);
}

#hudShieldBar {
  width: 100%; /* Binded by JS code */
  height: 100%;
  background-color: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green-glow);
  transition: width 0.2s ease, background-color 0.2s ease;
}

#hudDashBar {
  width: 100%; /* Ready status bar */
  height: 100%;
  background-color: var(--neon-cyan);
  box-shadow: 0 0 8px var(--neon-cyan-glow);
  transition: width 0.2s ease;
}

#hudShieldPercent {
  font-family: var(--terminal-font);
  font-weight: bold;
  width: 45px;
  text-align: right;
  font-size: 0.85rem;
  color: var(--neon-green);
  text-shadow: 0 0 6px var(--neon-green-glow);
}

#hudDashPercent {
  font-family: var(--terminal-font);
  font-weight: bold;
  width: 45px;
  text-align: right;
  font-size: 0.85rem;
  color: var(--neon-cyan);
  text-shadow: 0 0 6px var(--neon-cyan-glow);
}

/* ==========================================================================
   HACKING QTE OVERLAY & MODAL
   ========================================================================== */

#hackOverlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(9, 10, 15, 0.94);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 15;
  pointer-events: none;
}

/* Warning alert panels */
.hack-alert-top, .hack-alert-bottom {
  width: 100%;
  background: rgba(255, 0, 0, 0.12);
  border-top: 2px solid var(--neon-red);
  border-bottom: 2px solid var(--neon-red);
  color: var(--neon-red);
  font-family: var(--title-font);
  font-weight: 900;
  font-size: 0.8rem;
  padding: 8px 0;
  text-align: center;
  letter-spacing: 2.5px;
  box-shadow: 0 0 15px var(--neon-red-glow);
  animation: alert-flash 0.4s infinite alternate;
}

.hack-alert-top {
  position: absolute;
  top: 8%;
}

.hack-alert-bottom {
  position: absolute;
  bottom: 8%;
}

@keyframes alert-flash {
  from { opacity: 0.5; background: rgba(255, 0, 0, 0.05); }
  to { opacity: 1; background: rgba(255, 0, 0, 0.2); }
}

/* Hacking console container */
.hack-console {
  background: #06070a;
  border: 4px double var(--neon-purple);
  box-shadow: 
    0 0 25px var(--neon-purple-glow), 
    inset 0 0 15px var(--neon-purple-glow);
  padding: 22px 20px;
  border-radius: 10px;
  text-align: center;
  width: 88%;
  max-width: 360px;
  animation: pulse-hack-border 2s infinite alternate;
}

@keyframes pulse-hack-border {
  0% {
    border-color: var(--neon-purple);
    box-shadow: 0 0 20px var(--neon-purple-glow), inset 0 0 12px var(--neon-purple-glow);
  }
  100% {
    border-color: var(--neon-red);
    box-shadow: 0 0 30px var(--neon-red-glow), inset 0 0 18px var(--neon-red-glow);
  }
}

.hack-title {
  font-family: var(--title-font);
  font-size: 1.2rem;
  color: var(--neon-red);
  text-shadow: 0 0 10px var(--neon-red-glow);
  margin-bottom: 6px;
  font-weight: 900;
  letter-spacing: 1px;
}

.hack-subtitle {
  font-family: var(--terminal-font);
  font-size: 0.85rem;
  color: #a0a0c0;
  margin-bottom: 18px;
}

#qteKeysContainer {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 15px 0;
}

/* Keycaps switch style */
.qte-key {
  display: inline-block;
  width: 44px;
  height: 44px;
  line-height: 40px;
  font-family: var(--terminal-font);
  font-size: 1.5rem;
  font-weight: bold;
  color: #666688;
  background: rgba(14, 15, 24, 0.95);
  border: 2px solid #282a3a;
  border-radius: 8px;
  text-align: center;
  transition: all 0.1s ease;
  box-shadow: inset 0 3px 0 rgba(255,255,255,0.05);
}

/* Keycap states */
.qte-key.active {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: 0 0 15px var(--neon-cyan), inset 0 0 5px var(--neon-cyan-glow);
  transform: scale(1.12);
}

.qte-key.success {
  border-color: var(--neon-green);
  color: var(--neon-green);
  box-shadow: 0 0 20px var(--neon-green), inset 0 0 8px var(--neon-green-glow);
  transform: scale(1.18);
}

.qte-key.fail {
  border-color: var(--neon-red);
  color: var(--neon-red);
  box-shadow: 0 0 20px var(--neon-red), inset 0 0 8px var(--neon-red-glow);
  transform: scale(0.88);
}

/* QTE Timer Bar */
.hack-timer-container {
  width: 100%;
  height: 12px;
  background: #030307;
  border: 1px solid var(--neon-red);
  padding: 2px;
  border-radius: 4px;
  overflow: hidden;
  margin-top: 20px;
  box-shadow: 0 0 10px var(--neon-red-glow);
}

#hackTimerBar {
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    90deg,
    var(--neon-red),
    var(--neon-red) 6px,
    transparent 6px,
    transparent 10px
  );
  transition: width 0.05s linear;
}

/* ==========================================================================
   OVERLAY MENUS (START, PAUSE, GAME OVER)
   ========================================================================== */

.overlay-menu {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(9, 10, 15, 0.95);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  z-index: 20;
  padding: 30px 22px;
  text-align: center;
  overflow-y: auto;
  scrollbar-width: none; /* Hide scrollbar for clean retro presentation */
}

.overlay-menu::-webkit-scrollbar {
  display: none;
}

.hidden {
  display: none !important;
}

/* Menu titles and Glitch FX */
h1 {
  font-family: var(--title-font);
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: 2px;
  margin-top: 15px;
  margin-bottom: 6px;
}

h2.neon-title-magenta {
  font-family: var(--title-font);
  font-size: 1.8rem;
  font-weight: 900;
  margin-top: 40px;
  margin-bottom: 25px;
  color: var(--neon-magenta);
  text-shadow: 0 0 12px var(--neon-magenta-glow);
}

.glitch {
  position: relative;
  color: #ffffff;
  text-shadow: 0 0 8px var(--neon-magenta-glow), 0 0 20px var(--neon-magenta-glow);
  animation: text-pulse 2s infinite alternate;
}

@keyframes text-pulse {
  0% { text-shadow: 0 0 6px var(--neon-magenta-glow), 0 0 15px var(--neon-magenta-glow); }
  100% { text-shadow: 0 0 12px var(--neon-magenta-glow), 0 0 30px var(--neon-magenta-glow); }
}

.subtitle {
  font-family: var(--terminal-font);
  font-size: 0.8rem;
  color: var(--neon-cyan);
  text-shadow: 0 0 6px var(--neon-cyan-glow);
  margin-bottom: 24px;
  letter-spacing: 1px;
}

/* Instruction manual card */
.instructions {
  background: rgba(14, 15, 24, 0.8);
  border: 1px solid rgba(0, 255, 255, 0.15);
  box-shadow: inset 0 0 10px rgba(0, 255, 255, 0.05);
  padding: 14px 16px;
  border-radius: 8px;
  width: 100%;
  margin-bottom: 24px;
  font-size: 0.74rem;
  text-align: left;
}

.instructions h3 {
  font-family: var(--title-font);
  font-size: 0.8rem;
  margin-bottom: 10px;
  color: var(--neon-cyan);
  text-shadow: 0 0 5px var(--neon-cyan-glow);
  text-align: center;
  letter-spacing: 1.5px;
}

.instructions ul {
  list-style: none;
}

.instructions li {
  margin-bottom: 8px;
  line-height: 1.4;
  color: #d1d2e0;
}

.key {
  background: #171822;
  color: var(--neon-cyan);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--terminal-font);
  border: 1px solid var(--neon-cyan);
  box-shadow: 0 0 5px var(--neon-cyan-glow);
  font-weight: bold;
}

.accent-red { color: var(--neon-red); text-shadow: 0 0 6px var(--neon-red-glow); }
.accent-cyan { color: var(--neon-cyan); text-shadow: 0 0 6px var(--neon-cyan-glow); }
.accent-green { color: var(--neon-green); text-shadow: 0 0 6px var(--neon-green-glow); }

/* Buttons styling with neon borders & hover cascades */
.btn {
  display: block;
  width: 88%;
  max-width: 280px;
  font-family: var(--title-font);
  font-size: 0.9rem;
  font-weight: 900;
  color: #ffffff;
  background: transparent;
  border: 2px solid var(--neon-cyan);
  padding: 11px 20px;
  margin: 10px auto;
  border-radius: 6px;
  cursor: pointer;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 
    0 0 10px var(--neon-cyan-glow), 
    inset 0 0 5px var(--neon-cyan-glow);
  text-shadow: 0 0 5px var(--neon-cyan-glow);
}

.btn:hover {
  background: var(--neon-cyan);
  color: #030307;
  box-shadow: 
    0 0 25px var(--neon-cyan), 
    inset 0 0 10px var(--neon-cyan);
  text-shadow: none;
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(1px);
}

/* Magenta customized buttons (Restart / Pause features) */
#restartButtonPause, #muteButton, #mainMenuButton {
  border-color: var(--neon-magenta);
  box-shadow: 
    0 0 10px var(--neon-magenta-glow), 
    inset 0 0 5px var(--neon-magenta-glow);
  text-shadow: 0 0 5px var(--neon-magenta-glow);
}

#restartButtonPause:hover, #muteButton:hover, #mainMenuButton:hover {
  background: var(--neon-magenta);
  color: #030307;
  box-shadow: 
    0 0 25px var(--neon-magenta), 
    inset 0 0 10px var(--neon-magenta);
  text-shadow: none;
}

/* Green customized button (Success retry actions) */
#retryButton {
  border-color: var(--neon-green);
  box-shadow: 
    0 0 10px var(--neon-green-glow), 
    inset 0 0 5px var(--neon-green-glow);
  text-shadow: 0 0 5px var(--neon-green-glow);
}

#retryButton:hover {
  background: var(--neon-green);
  color: #030307;
  box-shadow: 
    0 0 25px var(--neon-green), 
    inset 0 0 10px var(--neon-green);
  text-shadow: none;
}

/* Leaderboard list style */
.leaderboard-section {
  width: 88%;
  max-width: 280px;
  margin: 18px auto;
}

.leaderboard-section h3 {
  font-family: var(--title-font);
  font-size: 0.8rem;
  color: var(--neon-magenta);
  margin-bottom: 10px;
  text-shadow: 0 0 6px var(--neon-magenta-glow);
  letter-spacing: 1px;
}

#leaderboardList {
  list-style: none;
  font-family: var(--terminal-font);
  font-size: 0.8rem;
  background: rgba(14, 15, 24, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  padding: 10px;
  box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.8);
}

#leaderboardList li {
  display: flex;
  justify-content: space-between;
  padding: 5px 8px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
  color: #a0a0c0;
}

#leaderboardList li:last-child {
  border-bottom: none;
}

.rank-1 { color: #ffd700; font-weight: bold; text-shadow: 0 0 5px rgba(255, 215, 0, 0.5); }
.rank-2 { color: #c0c0c0; font-weight: bold; text-shadow: 0 0 5px rgba(192, 192, 192, 0.5); }
.rank-3 { color: #cd7f32; font-weight: bold; text-shadow: 0 0 5px rgba(205, 127, 50, 0.5); }

/* Game over & High Score sub panels */
.final-stats {
  font-family: var(--terminal-font);
  font-size: 1.1rem;
  margin: 20px 0;
  letter-spacing: 1px;
}

.final-stats p {
  margin-bottom: 10px;
}

#highScoreForm {
  background: rgba(24, 14, 34, 0.8);
  border: 1px solid var(--neon-magenta);
  padding: 14px 18px;
  border-radius: 8px;
  margin: 0 auto 20px auto;
  max-width: 280px;
  width: 88%;
  box-shadow: 0 0 15px var(--neon-magenta-glow);
}

.high-score-msg {
  font-family: var(--title-font);
  font-size: 0.9rem;
  color: var(--neon-magenta);
  text-shadow: 0 0 6px var(--neon-magenta-glow);
  margin-bottom: 10px;
  font-weight: 900;
  letter-spacing: 1px;
}

#highScoreForm label {
  display: block;
  font-size: 0.72rem;
  color: #a0a0c0;
  margin-bottom: 10px;
  line-height: 1.3;
}

#playerName {
  background: #030307;
  border: 2px solid var(--neon-magenta);
  color: #ffffff;
  padding: 6px 8px;
  font-family: var(--terminal-font);
  font-size: 1.25rem;
  text-align: center;
  letter-spacing: 4px;
  width: 95px;
  border-radius: 6px;
  outline: none;
  margin-bottom: 12px;
  text-transform: uppercase;
  box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.8);
}

#playerName:focus {
  box-shadow: 0 0 12px var(--neon-magenta);
  border-color: #ffffff;
}

/* Audio Consent bottom notification */
.audio-consent {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(9, 10, 15, 0.95);
  color: #8888aa;
  font-size: 0.62rem;
  padding: 6px 12px;
  border-radius: 5px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  z-index: 1000;
  pointer-events: auto;
  text-align: center;
  width: 82%;
  max-width: 320px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.5);
  font-family: var(--terminal-font);
}

/* ==========================================================================
   RESPONSIVENESS & SHAKE INTERACTION
   ========================================================================== */

@media (max-width: 480px) {
  .crt-container {
    width: 100vw;
    height: 100vh;
    border: none;
    outline: none;
    border-radius: 0;
  }
  
  .crt-container::before {
    border-radius: 0;
  }
}

/* CRT Screen Shake effect */
.crt-container.shake {
  animation: crt-cabinet-shake 0.18s linear infinite;
}

@keyframes crt-cabinet-shake {
  0% { transform: translate(0, 0); }
  10% { transform: translate(-3px, 2px) rotate(-0.2deg); }
  20% { transform: translate(2px, -2px) rotate(0.2deg); }
  30% { transform: translate(-2px, -1px) rotate(0deg); }
  40% { transform: translate(1px, 2px) rotate(0.1deg); }
  50% { transform: translate(-2px, 1px) rotate(-0.1deg); }
  60% { transform: translate(2px, -1px) rotate(0deg); }
  70% { transform: translate(-1px, 1px) rotate(0.1deg); }
  80% { transform: translate(1px, -2px) rotate(-0.1deg); }
  90% { transform: translate(-1px, 2px) rotate(0deg); }
  100% { transform: translate(0, 0); }
}