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

:root {
  color-scheme: dark;
  --bg: #0a1525;
  --panel: rgba(13, 27, 42, 0.9);
  --panel-light: rgba(30, 55, 85, 0.95);
  --border: #3a5a7a;
  --border-light: #4a6a8a;
  --text: #e0e8f0;
  --text-dim: #8a9ab0;
  --accent: #f0c040;
  --accent-glow: rgba(240, 192, 64, 0.35);
  --accent-2: #4fc3f7;
  --hp-good: #66bb6a;
  --hp-mid: #ffa726;
  --hp-bad: #ef5350;
  --shadow: 0 4px 24px rgba(0,0,0,0.55);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
  --font-pixel: ui-monospace, 'SF Mono', 'Cascadia Code', 'Roboto Mono', Consolas, 'Liberation Mono', Menlo, monospace;
  --font-body: ui-monospace, 'SF Mono', 'Cascadia Code', 'Roboto Mono', Consolas, 'Liberation Mono', Menlo, monospace;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #b3d9f2;
  --panel: rgba(255, 255, 255, 0.94);
  --panel-light: rgba(240, 248, 255, 0.97);
  --border: #5a7a9a;
  --border-light: #6a8aaa;
  --text: #1a2a3a;
  --text-dim: #5a6a80;
  --accent: #d4a020;
  --accent-glow: rgba(212, 160, 32, 0.3);
  --accent-2: #0288d1;
  --hp-good: #43a047;
  --hp-mid: #fb8c00;
  --hp-bad: #e53935;
  --shadow: 0 4px 20px rgba(0,0,0,0.2);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.15);
}

html, body {
  margin: 0; padding: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  font-family: var(--font-body);
  color: var(--text);
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

#game { position: relative; width: 100%; height: 100%; }

#canvas {
  display: block;
  width: 100%; height: 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  cursor: crosshair;
  touch-action: none;
}

#ui {
  position: absolute; inset: 0;
  pointer-events: none;
  display: flex; flex-direction: column;
  justify-content: space-between;
}

#topbar {
  display: flex; justify-content: space-between;
  align-items: flex-start; padding: 12px; gap: 8px;
}

.info-group { display: flex; gap: 6px; }

.info-pill {
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 7px 12px;
  font-family: var(--font-pixel);
  font-size: 10px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

#hp-display {
  display: flex; align-items: center; gap: 7px;
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

#hp-label {
  font-family: var(--font-pixel);
  font-size: 9px;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

#hp-bar-bg {
  width: 100px; height: 12px;
  background: rgba(0,0,0,0.45);
  border-radius: 4px; overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.3);
}

#hp-bar-fill {
  height: 100%;
  background: var(--hp-good);
  transition: width 0.3s ease, background 0.3s ease;
  width: 100%;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.2);
}

#hp-text {
  font-family: var(--font-pixel);
  font-size: 11px;
  font-weight: 700;
  min-width: 26px; text-align: right;
}

#weapon-bar {
  display: flex; gap: 8px; padding: 12px;
  justify-content: center; flex-wrap: wrap;
  pointer-events: auto;
}

.weapon-btn {
  display: flex; align-items: center; gap: 8px;
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 8px 14px;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  font-family: var(--font-body);
  color: var(--text);
  min-width: 88px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm);
}

.weapon-btn:hover {
  background: var(--panel-light);
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.4);
}

.weapon-btn:active { transform: translateY(0); }

.weapon-btn.active {
  border-color: var(--accent);
  background: var(--panel-light);
  box-shadow: 0 0 16px var(--accent-glow), 0 4px 12px rgba(0,0,0,0.3);
}

.weapon-btn.active .weapon-name { color: var(--accent); }

.weapon-btn.disabled { opacity: 0.35; cursor: not-allowed; }
.weapon-btn.disabled:hover { transform: none; border-color: var(--border); background: var(--panel); box-shadow: var(--shadow-sm); }

.weapon-icon {
  width: 16px; height: 16px;
  border-radius: 3px; flex-shrink: 0;
  border: 1px solid rgba(0,0,0,0.35);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.25);
}
.weapon-icon[data-w="pencil"] { background: linear-gradient(135deg, #f0c040, #d4a020); }
.weapon-icon[data-w="eraser"] { background: linear-gradient(135deg, #f48fb1, #e07090); }
.weapon-icon[data-w="rock"]   { background: linear-gradient(135deg, #9a9a9a, #6a6a6a); }
.weapon-icon[data-w="sink"]   { background: linear-gradient(135deg, #b0bec5, #78909c); }

.weapon-info {
  display: flex; flex-direction: column;
  align-items: flex-start; line-height: 1;
}

.weapon-name { font-size: 15px; font-weight: bold; transition: color 0.15s; }

.weapon-ammo {
  font-family: var(--font-pixel);
  font-size: 9px; font-weight: 700;
  color: var(--accent);
  margin-top: 3px;
  letter-spacing: 1px;
}

#overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  pointer-events: auto;
  z-index: 10;
  animation: overlayFade 0.3s ease;
}

#overlay.hidden { display: none; }

@keyframes overlayFade {
  from { opacity: 0; }
  to { opacity: 1; }
}

#overlay-box {
  background: var(--panel);
  border: 3px solid var(--border);
  border-radius: 20px;
  padding: 32px 40px;
  text-align: center;
  max-width: 92%;
  box-shadow: var(--shadow), 0 0 40px rgba(0,0,0,0.3);
  position: relative;
  animation: boxPop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#overlay-box.show {
  animation: boxPop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes boxPop {
  0% { opacity: 0; transform: scale(0.85) translateY(10px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

#overlay-emblem {
  width: 48px; height: 48px;
  margin: 0 auto 16px;
  background: radial-gradient(circle, var(--accent) 30%, transparent 70%);
  border-radius: 50%;
  position: relative;
  opacity: 0.8;
  animation: emblemPulse 2s ease-in-out infinite;
}

#overlay-emblem::before {
  content: '';
  position: absolute;
  inset: 12px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--accent-glow);
}

@keyframes emblemPulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.1); opacity: 1; }
}

#overlay-title {
  font-family: var(--font-pixel);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-shadow: 2px 2px 0 rgba(0,0,0,0.5), 0 0 20px var(--accent-glow);
  line-height: 1.4;
}

#overlay-text {
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 20px;
  line-height: 1.5;
  max-width: 380px;
}

#overlay-stats {
  font-size: 17px;
  color: var(--text);
  margin-bottom: 18px;
  line-height: 1.7;
  font-weight: 600;
}

#overlay-stats.hidden { display: none; }

#overlay-btn {
  font-family: var(--font-pixel);
  font-size: 13px;
  font-weight: 700;
  padding: 14px 32px;
  background: var(--accent);
  color: #1a1a2e;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 4px 0 rgba(0,0,0,0.3), 0 0 20px var(--accent-glow);
}

#overlay-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 rgba(0,0,0,0.3), 0 0 28px var(--accent-glow);
}

#overlay-btn:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 rgba(0,0,0,0.3), 0 0 12px var(--accent-glow);
}

#wave-banner {
  position: absolute;
  top: 36%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-pixel);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  text-shadow: 3px 3px 0 rgba(0,0,0,0.7), 0 0 24px var(--accent-glow);
  pointer-events: none;
  z-index: 5;
  text-align: center;
  animation: bannerFade 2.5s ease-out forwards;
  white-space: nowrap;
  letter-spacing: 2px;
  text-transform: uppercase;
}

#wave-banner.hidden { display: none; }

@keyframes bannerFade {
  0%   { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
  12%  { opacity: 1; transform: translate(-50%, -50%) scale(1.15); }
  22%  { transform: translate(-50%, -50%) scale(1); }
  80%  { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1); }
}

@media (max-width: 480px) {
  .weapon-btn { min-width: 64px; padding: 6px 9px; gap: 5px; border-radius: 8px; }
  .weapon-name { font-size: 13px; }
  .weapon-ammo { font-size: 8px; }
  .weapon-icon { width: 13px; height: 13px; }
  #overlay-box { padding: 24px 28px; border-radius: 16px; }
  #overlay-emblem { width: 40px; height: 40px; margin-bottom: 12px; }
  #overlay-title { font-size: 16px; letter-spacing: 2px; }
  #overlay-text { font-size: 15px; }
  #overlay-stats { font-size: 14px; }
  #overlay-btn { font-size: 11px; padding: 12px 24px; }
  .info-pill { font-size: 8px; padding: 5px 8px; }
  #hp-bar-bg { width: 70px; height: 10px; }
  #hp-text { font-size: 9px; }
  #hp-label { font-size: 7px; }
  #wave-banner { font-size: 15px; }
  #topbar { padding: 8px; gap: 6px; }
  #weapon-bar { padding: 8px; gap: 5px; }
}

@media (max-width: 360px) {
  .info-pill { font-size: 7px; padding: 4px 6px; }
  #hp-bar-bg { width: 55px; }
  .weapon-btn { min-width: 56px; padding: 5px 7px; }
  .weapon-name { font-size: 12px; }
  #overlay-title { font-size: 14px; }
}