/* style.css — Fortress Defense: all styling */
:root {
  color-scheme: dark;
  --bg: #0a0e16;
  --surface: rgba(18, 22, 36, 0.88);
  --surface-solid: #121624;
  --surface-hover: rgba(28, 34, 52, 0.95);
  --accent: #f0a040;
  --accent-2: #e8852a;
  --accent-glow: rgba(240, 160, 64, 0.4);
  --text: #e8e8e8;
  --muted: #8b949e;
  --danger: #e84545;
  --success: #4ade80;
  --warning: #fbbf24;
  --gold: #ffd93d;
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.18);
  --font-display: 'Arial Black', 'Helvetica Neue', Impact, sans-serif;
  --font-ui: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #d8d8d8;
    --surface: rgba(255, 255, 255, 0.9);
    --surface-solid: #ffffff;
    --surface-hover: rgba(245, 245, 245, 0.98);
    --accent: #d97706;
    --accent-2: #c2670a;
    --accent-glow: rgba(217, 119, 6, 0.3);
    --text: #1a1a1a;
    --muted: #6b7280;
    --border: rgba(0, 0, 0, 0.12);
    --border-strong: rgba(0, 0, 0, 0.2);
  }
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0a0e16;
  --surface: rgba(18, 22, 36, 0.88);
  --surface-solid: #121624;
  --surface-hover: rgba(28, 34, 52, 0.95);
  --accent: #f0a040;
  --accent-2: #e8852a;
  --accent-glow: rgba(240, 160, 64, 0.4);
  --text: #e8e8e8;
  --muted: #8b949e;
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.18);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #d8d8d8;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-solid: #ffffff;
  --surface-hover: rgba(245, 245, 245, 0.98);
  --accent: #d97706;
  --accent-2: #c2670a;
  --accent-glow: rgba(217, 119, 6, 0.3);
  --text: #1a1a1a;
  --muted: #6b7280;
  --border: rgba(0, 0, 0, 0.12);
  --border-strong: rgba(0, 0, 0, 0.2);
}

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

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

#game {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

#canvas {
  display: block;
  position: absolute;
  inset: 0;
  touch-action: none;
  cursor: crosshair;
}

/* ===== HUD TOP ===== */
#hud-top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 12px 14px;
  gap: 10px;
  pointer-events: none;
  z-index: 10;
}

.hud-group {
  display: flex;
  gap: 8px;
  pointer-events: auto;
}

.hud-stat {
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 7px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 62px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

.hud-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.hud-value {
  font-family: var(--font-display);
  font-size: 21px;
  color: var(--accent);
  line-height: 1.1;
  margin-top: 2px;
  letter-spacing: 0.02em;
  text-shadow: 0 0 12px var(--accent-glow);
}

.fort-hp-container {
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 7px 16px;
  flex: 1;
  max-width: 340px;
  pointer-events: auto;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

.fort-hp-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
  margin-bottom: 5px;
}

.fort-hp-bar {
  position: relative;
  height: 18px;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.fort-hp-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #4ade80, #22c55e);
  border-radius: 5px;
  transition: width 0.3s ease, background 0.3s ease;
  box-shadow: 0 0 10px rgba(74, 222, 128, 0.4);
  position: relative;
}

.fort-hp-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.25), transparent 50%);
  border-radius: 5px;
}

.fort-hp-fill.warning {
  background: linear-gradient(90deg, #fbbf24, #f59e0b);
  box-shadow: 0 0 10px rgba(251, 191, 36, 0.4);
}

.fort-hp-fill.critical {
  background: linear-gradient(90deg, #ef4444, #dc2626);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.5);
  animation: pulse 0.8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.65; }
}

.fort-hp-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7);
  letter-spacing: 0.03em;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
  pointer-events: auto;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

.icon-btn:hover {
  background: var(--surface-hover);
  border-color: var(--border-strong);
  transform: scale(1.06);
}

.icon-btn:active {
  transform: scale(0.94);
}

/* ===== AMMO BAR ===== */
#ammo-bar {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.ammo-btn {
  position: relative;
  width: 80px;
  height: 62px;
  border-radius: 14px;
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 2px solid var(--border);
  color: var(--text);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  transition: transform 0.18s cubic-bezier(0.34, 1.56, 0.64, 1), border-color 0.15s, background 0.15s, box-shadow 0.2s;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.ammo-btn:hover {
  transform: translateY(-4px);
  background: var(--surface-hover);
  border-color: var(--border-strong);
}

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

.ammo-btn.active {
  border-color: var(--accent);
  background: var(--surface-solid);
  box-shadow: 0 0 20px var(--accent-glow), 0 4px 16px rgba(0, 0, 0, 0.3);
}

.ammo-btn.ready::after {
  content: '';
  position: absolute;
  top: 5px;
  right: 5px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 6px rgba(74, 222, 128, 0.7);
}

.ammo-btn.active.ready::after {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

.ammo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 22px;
}

.tennis-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #d4f542;
  border: 2px solid #a8c020;
  position: relative;
  box-shadow: inset -2px -2px 4px rgba(0, 0, 0, 0.15);
}

.tennis-icon::after {
  content: '';
  position: absolute;
  inset: 1px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  border-top-color: transparent;
  border-bottom-color: transparent;
  transform: rotate(35deg);
}

.eraser-icon {
  width: 26px;
  height: 16px;
  border-radius: 3px;
  background: linear-gradient(90deg, #ff6b9d 60%, #ffcde0 60%);
  border: 1px solid rgba(0, 0, 0, 0.2);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.pencil-icon {
  width: 28px;
  height: 9px;
  background: #ffd93d;
  border-radius: 1px;
  position: relative;
  border: 1px solid rgba(0, 0, 0, 0.15);
}

.pencil-icon::after {
  content: '';
  position: absolute;
  right: -7px;
  top: -1px;
  border-left: 7px solid #f4a460;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.pencil-icon::before {
  content: '';
  position: absolute;
  left: -5px;
  top: -1px;
  width: 5px;
  height: 9px;
  background: #ff6b9d;
  border-radius: 1px;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-right: none;
}

.ammo-name {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text);
}

.ammo-key {
  position: absolute;
  top: 4px;
  left: 6px;
  font-size: 8px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.cooldown-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 12px;
  pointer-events: none;
  transform-origin: bottom;
  transform: scaleY(0);
  transition: transform 0.05s linear;
}

/* ===== OVERLAYS ===== */
.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 8, 14, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 20;
  padding: 20px;
}

html[data-theme="light"] .overlay {
  background: rgba(220, 220, 220, 0.85);
}

.overlay.hidden {
  display: none;
}

.overlay.animate-in {
  animation: overlayIn 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.overlay.animate-in .overlay-content {
  animation: contentIn 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

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

@keyframes contentIn {
  from { opacity: 0; transform: translateY(20px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.overlay-content {
  text-align: center;
  max-width: 440px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.title-badge {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: 100px;
  padding: 5px 18px;
  text-shadow: 0 0 8px var(--accent-glow);
}

.title-badge.success {
  color: var(--success);
  background: rgba(74, 222, 128, 0.15);
  border-color: var(--success);
  text-shadow: 0 0 8px rgba(74, 222, 128, 0.4);
}

.title-badge.danger {
  color: var(--danger);
  background: rgba(232, 69, 69, 0.15);
  border-color: var(--danger);
  text-shadow: 0 0 8px rgba(232, 69, 69, 0.4);
}

.game-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 11vw, 68px);
  line-height: 0.92;
  color: var(--accent);
  text-shadow: 0 0 40px var(--accent-glow), 0 4px 12px rgba(0, 0, 0, 0.5);
  letter-spacing: 0.03em;
  margin-bottom: 2px;
  font-weight: 900;
}

.game-desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
  opacity: 0.82;
  max-width: 370px;
}

.controls-hint {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin: 6px 0;
  align-items: center;
}

.control-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--muted);
}

.control-key {
  background: var(--surface-solid);
  border: 1px solid var(--border-strong);
  border-radius: 7px;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.06em;
  min-width: 64px;
  text-align: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.wave-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 8vw, 46px);
  color: var(--text);
  text-shadow: 0 0 24px rgba(74, 222, 128, 0.3);
  letter-spacing: 0.04em;
  font-weight: 900;
}

.wave-stats, .go-stats {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 290px;
  margin: 4px 0;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.stat-row span:first-child {
  color: var(--muted);
  font-weight: 600;
}

.stat-row span:last-child {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 17px;
  letter-spacing: 0.02em;
}

.stat-row.best span:last-child {
  color: var(--gold);
  text-shadow: 0 0 10px rgba(255, 217, 61, 0.3);
}

.heal-text {
  color: var(--success) !important;
  text-shadow: 0 0 8px rgba(74, 222, 128, 0.3) !important;
}

.go-title {
  font-family: var(--font-display);
  font-size: clamp(34px, 9vw, 50px);
  color: var(--danger);
  text-shadow: 0 0 24px rgba(232, 69, 69, 0.4);
  letter-spacing: 0.04em;
  font-weight: 900;
}

.big-btn {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.1em;
  color: #1a1a1a;
  background: linear-gradient(135deg, #f0a040, #e8852a);
  border: none;
  border-radius: 14px;
  padding: 15px 40px;
  cursor: pointer;
  transition: transform 0.18s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s;
  box-shadow: 0 6px 20px var(--accent-glow), 0 2px 6px rgba(0, 0, 0, 0.25);
  margin-top: 8px;
  text-transform: uppercase;
  font-weight: 900;
  position: relative;
  overflow: hidden;
}

.big-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.25), transparent 50%);
  border-radius: 14px;
  pointer-events: none;
}

.big-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px var(--accent-glow), 0 4px 10px rgba(0, 0, 0, 0.3);
}

.big-btn:active {
  transform: translateY(0);
  box-shadow: 0 3px 12px var(--accent-glow);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 380px) {
  .ammo-btn {
    width: 68px;
    height: 56px;
  }
  .ammo-name {
    font-size: 9px;
  }
  .hud-stat {
    min-width: 52px;
    padding: 5px 9px;
  }
  .hud-value {
    font-size: 18px;
  }
  .fort-hp-container {
    padding: 5px 11px;
  }
  .game-title {
    font-size: 36px;
  }
}

@media (max-height: 500px) {
  #hud-top {
    padding: 8px 10px;
  }
  #ammo-bar {
    bottom: 8px;
  }
  .ammo-btn {
    height: 50px;
  }
  .overlay-content {
    gap: 10px;
  }
  .game-title {
    font-size: 32px;
  }
  .game-desc {
    font-size: 12px;
  }
  .controls-hint {
    margin: 2px 0;
  }
}