* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { width: 100%; height: 100%; overflow: hidden; background: #000; font-family: 'Segoe UI', system-ui, sans-serif; }
canvas { display: block; }
#game-container { position: relative; width: 100%; height: 100%; cursor: default; }

/* Loading Screen */
#loading-screen {
  position: absolute; inset: 0; z-index: 100;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  color: #fff;
}
#loading-screen h1 {
  font-size: 80px; font-weight: 900; letter-spacing: 12px;
  text-shadow: 0 0 40px #e94560, 0 0 80px #e94560;
  color: #e94560; margin-bottom: 40px;
}
.progress-container { width: 400px; height: 8px; background: rgba(255,255,255,0.1); border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; width: 0%; background: linear-gradient(90deg, #e94560, #ff6b6b); border-radius: 4px; transition: width 0.2s; }
#loading-text { margin-top: 16px; color: rgba(255,255,255,0.5); font-size: 14px; }

/* Start Screen */
#start-screen {
  position: absolute; inset: 0; z-index: 90;
  display: none; flex-direction: column; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.85); color: #fff;
}
#start-screen h1 {
  font-size: 100px; font-weight: 900; letter-spacing: 16px;
  background: linear-gradient(180deg, #ff6b6b, #e94560);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
}
#start-screen .controls { color: rgba(255,255,255,0.6); font-size: 16px; margin-bottom: 40px; }
#start-screen .start-prompt { color: #e94560; font-size: 22px; animation: blink 1.2s infinite; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

/* HUD */
#hud { position: absolute; inset: 0; z-index: 10; pointer-events: none; display: none; }
#score {
  position: absolute; top: 20px; left: 24px;
  font-size: 28px; font-weight: 700; color: #fff;
  text-shadow: 0 2px 8px rgba(0,0,0,0.7);
}
#multiplier {
  position: absolute; top: 52px; left: 24px;
  font-size: 18px; font-weight: 600; color: #ffcc00;
  text-shadow: 0 2px 6px rgba(0,0,0,0.7);
  opacity: 0; transition: opacity 0.2s;
}
#wave-display {
  position: absolute; top: 20px; left: 50%; transform: translateX(-50%);
  font-size: 20px; font-weight: 600; color: rgba(255,255,255,0.8);
  text-shadow: 0 2px 6px rgba(0,0,0,0.7);
}
#health-container {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  width: 280px; height: 14px; background: rgba(0,0,0,0.6);
  border-radius: 7px; border: 2px solid rgba(255,255,255,0.15);
  overflow: hidden;
}
#health-fill {
  height: 100%; width: 100%;
  background: linear-gradient(90deg, #e94560, #ff6b6b);
  border-radius: 5px; transition: width 0.3s ease;
}
#weapon-display {
  position: absolute; bottom: 24px; right: 24px;
  font-size: 16px; font-weight: 600; color: #fff;
  background: rgba(0,0,0,0.5); padding: 8px 16px; border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.15);
}
#minimap-container {
  position: absolute; top: 16px; right: 16px;
  border: 2px solid rgba(255,255,255,0.2); border-radius: 8px;
  overflow: hidden; background: rgba(0,0,0,0.4);
}
#minimap { display: block; }

/* Wave Banner */
#wave-banner {
  position: absolute; top: 40%; left: 50%; transform: translate(-50%, -50%);
  z-index: 20; display: none; text-align: center; pointer-events: none;
}
#wave-banner h2 {
  font-size: 64px; font-weight: 900; color: #fff;
  text-shadow: 0 0 30px rgba(233,69,96,0.8);
  animation: bannerIn 0.5s ease-out;
}
#wave-banner .subtitle { font-size: 20px; color: rgba(255,255,255,0.6); margin-top: 8px; }
@keyframes bannerIn { from { transform: scale(2); opacity: 0; } to { transform: scale(1); opacity: 1; } }

/* Pause & Game Over */
.overlay-screen {
  position: absolute; inset: 0; z-index: 80;
  display: none; flex-direction: column; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.8); color: #fff;
}
.overlay-screen h2 { font-size: 56px; font-weight: 900; margin-bottom: 16px; }
.overlay-screen p { font-size: 20px; color: rgba(255,255,255,0.6); margin-bottom: 12px; }
.overlay-screen .score-display { font-size: 36px; color: #ffcc00; font-weight: 700; margin: 16px 0; }
#restart-btn {
  margin-top: 20px; padding: 14px 40px;
  font-size: 20px; font-weight: 700; color: #fff;
  background: #e94560; border: none; border-radius: 8px;
  cursor: pointer; pointer-events: all;
  transition: transform 0.15s, background 0.15s;
}
#restart-btn:hover { transform: scale(1.05); background: #ff6b6b; }

/* Floating Text */
#floating-texts { position: absolute; inset: 0; z-index: 15; pointer-events: none; overflow: hidden; }
.float-text {
  position: absolute; font-weight: 700; white-space: nowrap;
  animation: floatUp 1s ease-out forwards;
  text-shadow: 0 2px 4px rgba(0,0,0,0.8);
}
@keyframes floatUp {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(-60px); opacity: 0; }
}

/* Damage Flash */
#damage-flash {
  position: absolute; inset: 0; z-index: 5;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(233,69,96,0.4));
  pointer-events: none; opacity: 0; transition: opacity 0.15s;
}

/* Dialogue Overlay */
#dialogue-overlay {
  position: absolute; inset: 0; z-index: 88;
  display: none; align-items: flex-end; justify-content: center;
  padding-bottom: 40px; pointer-events: none;
}
#dialogue-box {
  width: 700px; max-width: 90vw;
  background: rgba(10, 10, 15, 0.92);
  border: 2px solid #e94560; border-radius: 12px;
  padding: 24px 28px; pointer-events: all;
  backdrop-filter: blur(8px);
}
#dialogue-speaker {
  font-size: 14px; font-weight: 700; color: #e94560;
  text-transform: uppercase; letter-spacing: 2px; margin-bottom: 10px;
}
#dialogue-text {
  font-size: 18px; color: #eee; line-height: 1.5; min-height: 54px;
}
#dialogue-continue {
  font-size: 13px; color: rgba(255,255,255,0.4);
  margin-top: 12px; display: none; animation: blink 1.2s infinite;
}
#dialogue-choices {
  display: none; flex-direction: column; gap: 10px; margin-top: 16px;
}
#dialogue-choices .choice-btn {
  background: rgba(233, 69, 96, 0.15);
  border: 1px solid rgba(233, 69, 96, 0.5);
  color: #fff; padding: 12px 20px; border-radius: 8px;
  font-size: 16px; cursor: pointer; text-align: left;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
  pointer-events: all; font-family: inherit;
}
#dialogue-choices .choice-btn:hover {
  background: rgba(233, 69, 96, 0.35);
  border-color: #e94560; transform: translateX(8px);
}

/* Fade Overlay */
#fade-overlay {
  position: absolute; inset: 0; z-index: 85;
  background: #000; opacity: 0; pointer-events: none;
  transition: opacity 0.8s ease;
}
#fade-overlay.active { pointer-events: all; }

/* Level Title */
#level-title {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 86; text-align: center;
  display: none; pointer-events: none;
}
#level-title-number {
  font-size: 32px; font-weight: 700; color: rgba(255,255,255,0.6);
  letter-spacing: 6px; text-transform: uppercase; margin-bottom: 8px;
}
#level-title-name {
  font-size: 64px; font-weight: 900; color: #e94560;
  text-shadow: 0 0 40px rgba(233,69,96,0.6), 0 0 80px rgba(233,69,96,0.3);
  letter-spacing: 4px;
}

/* Stats Screen */
#stats-screen {
  position: absolute; inset: 0; z-index: 90;
  display: none; flex-direction: column; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.9); color: #fff;
}
#stats-screen h2 {
  font-size: 48px; font-weight: 900; color: #e94560;
  text-shadow: 0 0 30px rgba(233,69,96,0.5);
  margin-bottom: 40px; letter-spacing: 6px;
}
#stats-grid {
  display: grid; grid-template-columns: auto auto;
  gap: 12px 40px; text-align: left;
}
.stat-label {
  font-size: 14px; color: rgba(255,255,255,0.5);
  letter-spacing: 2px; font-weight: 600; align-self: center;
}
.stat-value {
  font-size: 36px; font-weight: 900; color: #ffcc00;
  text-shadow: 0 0 20px rgba(255,204,0,0.3);
}
#stats-restart-btn {
  margin-top: 40px; padding: 14px 40px;
  font-size: 20px; font-weight: 700; color: #fff;
  background: #e94560; border: none; border-radius: 8px;
  cursor: pointer; transition: transform 0.15s, background 0.15s;
}
#stats-restart-btn:hover { transform: scale(1.05); background: #ff6b6b; }

/* === Mobile / Touch Support === */

/* Hidden by default, shown when body.mobile */
.mobile-only { display: none !important; }
body.mobile .mobile-only { display: block !important; }
body.mobile .desktop-only { display: none !important; }

body.mobile {
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

#touch-canvas {
  position: absolute;
  inset: 0;
  z-index: 8;
  pointer-events: auto;
  touch-action: none;
}

/* Pause button (mobile only) */
#pause-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 48px;
  height: 48px;
  font-size: 18px;
  color: #fff;
  background: rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  cursor: pointer;
  pointer-events: all;
  z-index: 11;
  display: none;
  align-items: center;
  justify-content: center;
  letter-spacing: -2px;
}
body.mobile #pause-btn { display: flex; }

/* Resume button (mobile only) */
#resume-btn {
  margin-top: 20px;
  padding: 14px 40px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  background: #e94560;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  pointer-events: all;
}

/* === Responsive: Tablet / Small desktop === */
@media (max-width: 768px) {
  #score { font-size: 20px; top: 12px; left: 16px; }
  #multiplier { font-size: 14px; top: 36px; left: 16px; }
  #health-container { width: 200px; height: 12px; bottom: 24px; }
  #weapon-display { font-size: 13px; bottom: 18px; right: 16px; padding: 6px 12px; }
  #minimap-container { transform: scale(0.667); transform-origin: top right; }
  #wave-display { font-size: 16px; }
  #wave-banner h2 { font-size: 40px; }
  #wave-banner .subtitle { font-size: 16px; }
  #loading-screen h1 { font-size: 48px; letter-spacing: 8px; }
  .progress-container { width: 280px; }
  #start-screen h1 { font-size: 64px; }
  #dialogue-choices .choice-btn { min-height: 48px; font-size: 15px; }
  #restart-btn, #stats-restart-btn { min-height: 48px; }
  .overlay-screen h2 { font-size: 40px; }
  .stat-value { font-size: 28px; }
  #stats-screen h2 { font-size: 36px; }
  #hud { padding-top: env(safe-area-inset-top); padding-left: env(safe-area-inset-left); padding-right: env(safe-area-inset-right); }
  #health-container { margin-bottom: env(safe-area-inset-bottom); }
}

/* === Responsive: Phone === */
@media (max-width: 480px) {
  #minimap-container { display: none; }
  #health-container { width: 160px; height: 10px; bottom: 20px; }
  #score { font-size: 18px; top: 10px; }
  #weapon-display { font-size: 12px; bottom: 14px; right: 12px; }
  #dialogue-box { padding: 16px 18px; }
  #dialogue-text { font-size: 15px; min-height: 40px; }
  #dialogue-speaker { font-size: 12px; }
  .overlay-screen h2 { font-size: 32px; }
  .stat-value { font-size: 24px; }
  #stats-grid { gap: 8px 24px; }
}