/* ============================================
   MONSTER DEFENSE CLASH - Premium CSS
   Ultra Premium Tower Defense Game
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;700;800;900&family=Exo+2:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #7c3aed;
  --primary-light: #a855f7;
  --primary-dark: #4c1d95;
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --danger: #ef4444;
  --danger-dark: #991b1b;
  --success: #22c55e;
  --info: #06b6d4;
  --gold: #f59e0b;
  --silver: #94a3b8;
  --bg-dark: #0a0a1a;
  --bg-mid: #0f0f2e;
  --bg-surface: #1a1a3e;
  --bg-card: #1e1b4b;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --border: rgba(139, 92, 246, 0.3);
  --glow-purple: 0 0 20px rgba(139, 92, 246, 0.6), 0 0 40px rgba(139, 92, 246, 0.3);
  --glow-gold: 0 0 20px rgba(245, 158, 11, 0.6), 0 0 40px rgba(245, 158, 11, 0.3);
  --glow-red: 0 0 20px rgba(239, 68, 68, 0.6), 0 0 40px rgba(239, 68, 68, 0.3);
  --glow-green: 0 0 20px rgba(34, 197, 94, 0.6), 0 0 40px rgba(34, 197, 94, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg-dark);
  font-family: 'Exo 2', sans-serif;
  color: var(--text-primary);
}

/* ============================================
   BACKGROUND STARS
   ============================================ */
.stars-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.star {
  position: absolute;
  width: 2px; height: 2px;
  background: white;
  border-radius: 50%;
  animation: twinkle var(--dur, 3s) var(--delay, 0s) infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.5); }
}

/* ============================================
   MAIN GAME CONTAINER
   ============================================ */
#game-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* ============================================
   SCREENS (Overlay logic)
   ============================================ */
.screen {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.screen.hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(1.05);
}

/* ============================================
   MAIN MENU SCREEN
   ============================================ */
#main-menu {
  background: radial-gradient(ellipse at center, #1a0a4e 0%, #0a0a1a 70%);
  overflow: hidden;
}

/* Thumbnail background layer */
.menu-thumbnail {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.menu-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  animation: thumbPan 20s ease-in-out infinite alternate;
}

@keyframes thumbPan {
  from { transform: scale(1.05) translateX(-2%); }
  to   { transform: scale(1.1)  translateX(2%);  }
}

.menu-bg-canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
}

.menu-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
  max-width: 600px;
  padding: 20px;
}

.game-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.logo-icon {
  width: 120px;
  height: 120px;
  position: relative;
}

#logo-canvas { border-radius: 24px; }

.logo-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 900;
  text-align: center;
  background: linear-gradient(135deg, #f59e0b, #a855f7, #06b6d4, #f59e0b);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
  text-shadow: none;
  filter: drop-shadow(0 0 15px rgba(168, 85, 247, 0.8));
  line-height: 1.1;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.logo-subtitle {
  font-size: clamp(0.8rem, 2vw, 1rem);
  color: var(--accent-light);
  letter-spacing: 4px;
  text-transform: uppercase;
  font-weight: 600;
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
  max-width: 320px;
}

.btn-menu {
  position: relative;
  padding: 16px 32px;
  border: none;
  border-radius: 16px;
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 2px;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s ease;
  text-transform: uppercase;
}

.btn-menu::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.5s;
}

.btn-menu:hover::before { left: 100%; }

.btn-primary {
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: white;
  box-shadow: var(--glow-purple), inset 0 1px 0 rgba(255,255,255,0.2);
  border: 1px solid rgba(168, 85, 247, 0.5);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 0 30px rgba(168, 85, 247, 0.8), 0 0 60px rgba(168, 85, 247, 0.4), inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn-secondary {
  background: linear-gradient(135deg, #1e1b4b, #2d2a6e);
  color: var(--accent-light);
  border: 1px solid rgba(245, 158, 11, 0.4);
  box-shadow: var(--glow-gold);
}

.btn-secondary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 0 30px rgba(245, 158, 11, 0.6), 0 0 60px rgba(245, 158, 11, 0.3);
}

.menu-stats {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.stat-badge {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 18px;
  text-align: center;
  backdrop-filter: blur(10px);
}

.stat-badge .value {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent-light);
}

.stat-badge .label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============================================
   TUTORIAL SCREEN
   ============================================ */
#tutorial-screen {
  background: radial-gradient(ellipse at 30% 50%, #1a0a4e 0%, #0a0a1a 70%);
  padding: 20px;
}

.tutorial-container {
  position: relative;
  z-index: 2;
  max-width: 700px;
  width: 100%;
  background: rgba(30, 27, 75, 0.9);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 30px;
  backdrop-filter: blur(20px);
  box-shadow: 0 0 60px rgba(139, 92, 246, 0.3);
  max-height: 90vh;
  overflow-y: auto;
}

.tutorial-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 800;
  text-align: center;
  background: linear-gradient(135deg, #f59e0b, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 24px;
}

.tutorial-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.tutorial-step {
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all 0.3s;
  animation: stepPop 0.5s ease both;
}

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

.tutorial-step:hover {
  border-color: var(--primary-light);
  background: rgba(139, 92, 246, 0.2);
  transform: translateY(-2px);
}

.step-icon {
  font-size: 2rem;
  display: block;
}

.step-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-light);
}

.step-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.tutorial-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   LEVEL SELECT SCREEN
   ============================================ */
#level-select {
  background: radial-gradient(ellipse at 50% 30%, #1a0a4e 0%, #0a0a1a 70%);
  padding: 20px;
}

.level-select-container {
  position: relative;
  z-index: 2;
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.level-select-header {
  text-align: center;
  margin-bottom: 24px;
}

.level-select-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 900;
  background: linear-gradient(135deg, #f59e0b, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
  padding: 10px;
}

.level-card {
  background: rgba(30, 27, 75, 0.8);
  border: 2px solid rgba(139, 92, 246, 0.3);
  border-radius: 16px;
  padding: 14px 10px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.level-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-light), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.level-card:hover::before { opacity: 1; }

.level-card:hover {
  border-color: var(--primary-light);
  transform: scale(1.05) translateY(-2px);
  box-shadow: var(--glow-purple);
}

.level-card.locked {
  opacity: 0.4;
  cursor: not-allowed;
  filter: grayscale(0.7);
}

.level-card.locked:hover { transform: none; box-shadow: none; }

.level-card.boss-level {
  border-color: rgba(239, 68, 68, 0.5);
}

.level-card.boss-level:hover {
  border-color: var(--danger);
  box-shadow: var(--glow-red);
}

.level-num {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--accent-light);
}

.level-name {
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.level-stars {
  font-size: 0.85rem;
  letter-spacing: 2px;
}

.level-badge {
  position: absolute;
  top: 4px; right: 4px;
  font-size: 0.6rem;
  padding: 2px 6px;
  border-radius: 6px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.badge-boss { background: rgba(239, 68, 68, 0.8); color: white; }
.badge-new { background: rgba(34, 197, 94, 0.8); color: white; }

.back-btn {
  margin-top: 16px;
  padding: 12px 28px;
  background: rgba(30, 27, 75, 0.8);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-secondary);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s;
  display: block;
  margin-left: auto; margin-right: auto;
}

.back-btn:hover {
  border-color: var(--primary-light);
  color: var(--text-primary);
  box-shadow: var(--glow-purple);
}

/* ============================================
   GAME HUD
   ============================================ */
#game-hud {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 50;
  pointer-events: none;
}

.hud-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: linear-gradient(180deg, rgba(10, 10, 26, 0.95) 0%, transparent 100%);
  backdrop-filter: blur(10px);
  gap: 8px;
  flex-wrap: nowrap;
}

.hud-resource {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(30, 27, 75, 0.8);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 12px;
  pointer-events: all;
  cursor: default;
  min-width: 80px;
}

.hud-resource .res-icon { font-size: 1rem; }

.hud-resource .res-value {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-light);
}

.hud-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex: 1;
}

.wave-indicator {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(0.7rem, 2vw, 0.9rem);
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
}

.wave-progress {
  width: 120px;
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
}

.wave-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 2px;
  transition: width 0.3s ease;
}

.hud-base-health {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(30, 27, 75, 0.8);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 20px;
  padding: 6px 12px;
  pointer-events: all;
}

.base-health-icon { font-size: 1rem; }

.base-health-bar {
  width: 80px;
  height: 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  overflow: hidden;
}

.base-health-fill {
  height: 100%;
  background: linear-gradient(90deg, #22c55e, #86efac);
  border-radius: 4px;
  transition: width 0.3s ease, background 0.5s;
}

.base-health-fill.low { background: linear-gradient(90deg, #ef4444, #fca5a5); }
.base-health-fill.mid { background: linear-gradient(90deg, #f59e0b, #fde68a); }

.hud-buttons {
  display: flex;
  gap: 6px;
  pointer-events: all;
}

.hud-btn {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(30, 27, 75, 0.8);
  color: var(--text-primary);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hud-btn:hover {
  background: rgba(139, 92, 246, 0.3);
  border-color: var(--primary-light);
}

/* ============================================
   UNIT SELECTION PANEL (Bottom)
   ============================================ */
#unit-panel {
  position: fixed;
  bottom: 0; left: 0;
  width: 100%;
  z-index: 50;
  background: linear-gradient(0deg, rgba(10, 10, 26, 0.98) 0%, rgba(10, 10, 26, 0.85) 100%);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

#unit-panel.hidden { display: none; }

.unit-panel-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  white-space: nowrap;
}

.units-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  flex: 1;
  padding-bottom: 4px;
  scrollbar-width: none;
}

.units-row::-webkit-scrollbar { display: none; }

.unit-card {
  flex: 0 0 auto;
  width: 70px;
  background: rgba(30, 27, 75, 0.9);
  border: 2px solid rgba(139, 92, 246, 0.3);
  border-radius: 14px;
  padding: 8px 6px;
  cursor: pointer;
  transition: all 0.25s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  position: relative;
  overflow: hidden;
}

.unit-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.unit-card:hover::before { opacity: 1; }

.unit-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-4px);
  box-shadow: var(--glow-purple);
}

.unit-card.selected {
  border-color: var(--accent-light);
  box-shadow: var(--glow-gold);
  transform: translateY(-4px);
}

.unit-card.affordable { }

.unit-card.too-expensive {
  opacity: 0.5;
  filter: grayscale(0.5);
}

.unit-canvas-preview {
  width: 48px;
  height: 48px;
  border-radius: 10px;
}

.unit-card-name {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.unit-card-cost {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-light);
}

.unit-card-cost span { font-size: 0.6rem; }

.unit-locked-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  font-size: 1.2rem;
}

/* ============================================
   ABILITIES ROW
   ============================================ */
.abilities-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ability-btn {
  width: 52px; height: 52px;
  border: 2px solid rgba(139, 92, 246, 0.4);
  border-radius: 14px;
  background: rgba(30, 27, 75, 0.9);
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  position: relative;
  overflow: hidden;
}

.ability-btn:hover:not(.cooldown) {
  transform: scale(1.1);
  box-shadow: var(--glow-purple);
}

.ability-btn.cooldown { opacity: 0.5; cursor: not-allowed; }

.ability-icon { font-size: 1.3rem; }

.ability-label {
  font-size: 0.5rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cooldown-ring {
  position: absolute;
  inset: 0;
  border-radius: 12px;
  background: conic-gradient(rgba(0,0,0,0.7) var(--cd-pct, 0%), transparent 0%);
  pointer-events: none;
}

/* ============================================
   MAIN GAME CANVAS
   ============================================ */
#game-canvas-container {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 10;
  display: none;
  overflow: hidden;
}

#game-canvas-container.active { display: block; }

#game-canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  cursor: crosshair;
  touch-action: none;
}

/* ============================================
   UPGRADE TOOLTIP
   ============================================ */
#upgrade-panel {
  position: fixed;
  z-index: 200;
  background: rgba(10, 10, 26, 0.97);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 16px;
  width: 220px;
  display: none;
  backdrop-filter: blur(20px);
  box-shadow: 0 0 30px rgba(139, 92, 246, 0.4);
  animation: panelIn 0.2s ease;
}

@keyframes panelIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

#upgrade-panel.show { display: block; }

.upgrade-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-light);
  margin-bottom: 8px;
  text-align: center;
}

.upgrade-stats {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.upgrade-stat {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.upgrade-stat .val { color: var(--success); font-weight: 600; }

.upgrade-buttons {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.upg-btn {
  padding: 8px 12px;
  border: none;
  border-radius: 10px;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.upg-damage { background: linear-gradient(135deg, #dc2626, #ef4444); color: white; }
.upg-speed { background: linear-gradient(135deg, #0891b2, #06b6d4); color: white; }
.upg-range { background: linear-gradient(135deg, #16a34a, #22c55e); color: white; }
.sell-btn { background: linear-gradient(135deg, #78350f, #92400e); color: #fde68a; }

.upg-btn:hover { transform: scale(1.03); filter: brightness(1.15); }
.upg-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.close-upgrade {
  position: absolute;
  top: 8px; right: 8px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: 4px;
  transition: color 0.2s;
}

.close-upgrade:hover { color: var(--danger); }

/* ============================================
   WAVE ALERT
   ============================================ */
#wave-alert {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  z-index: 150;
  background: linear-gradient(135deg, rgba(127, 29, 29, 0.95), rgba(69, 10, 10, 0.95));
  border: 2px solid var(--danger);
  border-radius: 24px;
  padding: 24px 40px;
  text-align: center;
  backdrop-filter: blur(20px);
  box-shadow: var(--glow-red);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.4s;
  opacity: 0;
  pointer-events: none;
}

#wave-alert.show {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.wave-alert-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 6px;
}

.wave-alert-num {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 900;
  color: white;
  text-shadow: 0 0 10px rgba(239, 68, 68, 0.8);
}

/* ============================================
   GAME OVER / VICTORY SCREEN
   ============================================ */
.result-screen {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 300;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s;
}

.result-screen.show {
  opacity: 1;
  pointer-events: all;
}

.result-box {
  background: linear-gradient(135deg, rgba(30, 27, 75, 0.97), rgba(15, 15, 46, 0.97));
  border: 2px solid var(--border);
  border-radius: 28px;
  padding: 40px;
  max-width: 450px;
  width: 90%;
  text-align: center;
  box-shadow: 0 0 80px rgba(139, 92, 246, 0.4);
}

.result-box.victory-box { border-color: rgba(245, 158, 11, 0.6); box-shadow: 0 0 80px rgba(245, 158, 11, 0.4); }
.result-box.defeat-box { border-color: rgba(239, 68, 68, 0.6); box-shadow: 0 0 80px rgba(239, 68, 68, 0.4); }

.result-emoji { font-size: 5rem; display: block; margin-bottom: 12px; animation: resultBounce 1s ease-in-out infinite; }

@keyframes resultBounce {
  0%, 100% { transform: scale(1) rotate(-5deg); }
  50% { transform: scale(1.1) rotate(5deg); }
}

.result-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 8px;
}

.victory-box .result-title { color: var(--accent-light); }
.defeat-box .result-title { color: var(--danger); }

.result-subtitle { color: var(--text-secondary); margin-bottom: 24px; }

.result-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 28px;
}

.result-stat {
  background: rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 12px;
}

.result-stat .rs-val {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-light);
}

.result-stat .rs-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.result-stars {
  font-size: 2.5rem;
  letter-spacing: 8px;
  margin-bottom: 20px;
  display: block;
}

.result-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-result {
  padding: 14px 24px;
  border: none;
  border-radius: 14px;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s;
  letter-spacing: 1px;
}

.btn-result.primary { background: linear-gradient(135deg, #7c3aed, #a855f7); color: white; }
.btn-result.secondary { background: rgba(255,255,255,0.08); color: var(--text-secondary); border: 1px solid var(--border); }
.btn-result:hover { transform: translateY(-2px); filter: brightness(1.15); }

/* ============================================
   PAUSE SCREEN
   ============================================ */
#pause-screen {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 250;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(12px);
  display: none;
  align-items: center;
  justify-content: center;
}

#pause-screen.show { display: flex; }

.pause-box {
  background: linear-gradient(135deg, rgba(30, 27, 75, 0.97), rgba(15, 15, 46, 0.97));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 36px;
  width: min(90%, 380px);
  text-align: center;
  box-shadow: 0 0 60px rgba(139, 92, 246, 0.4);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pause-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--primary-light);
}

.pause-actions { display: flex; flex-direction: column; gap: 10px; }

/* ============================================
   PARTICLES & EFFECTS OVERLAYS
   ============================================ */
#effects-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 20;
  pointer-events: none;
}

/* Shake effect */
@keyframes screenShake {
  0%, 100% { transform: translate(0,0) rotate(0deg); }
  10% { transform: translate(-5px, -3px) rotate(-0.5deg); }
  20% { transform: translate(5px, 3px) rotate(0.5deg); }
  30% { transform: translate(-3px, 5px) rotate(-0.3deg); }
  40% { transform: translate(3px, -5px) rotate(0.3deg); }
  50% { transform: translate(-5px, 2px) rotate(-0.5deg); }
  60% { transform: translate(5px, -2px) rotate(0.5deg); }
  70% { transform: translate(-3px, 3px) rotate(-0.3deg); }
  80% { transform: translate(3px, -3px) rotate(0.3deg); }
  90% { transform: translate(-2px, 2px) rotate(-0.2deg); }
}

.screen-shake {
  animation: screenShake 0.5s ease !important;
}

/* ============================================
   FLOATING DAMAGE NUMBERS
   ============================================ */
.damage-float {
  position: fixed;
  pointer-events: none;
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 1.2rem;
  z-index: 200;
  text-shadow: 0 2px 4px rgba(0,0,0,0.8);
  animation: floatUp 0.8s ease-out forwards;
}

@keyframes floatUp {
  0% { opacity: 1; transform: translateY(0) scale(1); }
  100% { opacity: 0; transform: translateY(-60px) scale(0.7); }
}

/* ============================================
   SCROLLBAR Styling
   ============================================ */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: rgba(255,255,255,0.05); border-radius: 2px; }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 2px; }

/* ============================================
   RESPONSIVE
   ============================================ */
/* ── Mobile ≤ 768px ─────────────────────────────────── */
@media (max-width: 768px) {
  /* HUD top: tighter, single row, no overflow */
  .hud-top {
    padding: 5px 6px;
    gap: 5px;
    flex-wrap: nowrap;
    overflow: hidden;
  }
  .hud-resource {
    padding: 4px 6px;
    min-width: 0;
    gap: 4px;
    border-radius: 14px;
  }
  .hud-resource .res-icon { font-size: 0.85rem; }
  .hud-resource .res-value { font-size: 0.75rem; }
  .wave-indicator { font-size: 0.65rem; white-space: nowrap; }
  .wave-progress { width: 70px; }
  .hud-base-health { padding: 4px 6px; gap: 5px; }
  .base-health-icon { font-size: 0.85rem; }
  .base-health-bar { width: 50px; height: 6px; }
  .hud-btn { width: 30px; height: 30px; font-size: 0.85rem; border-radius: 8px; }

  /* Unit panel: compact cards */
  #unit-panel {
    padding: 6px 8px 6px 6px;
    gap: 6px;
  }
  .unit-panel-label { font-size: 0.55rem; }
  .units-row { gap: 6px; }
  .unit-card {
    width: 58px;
    padding: 6px 4px;
    border-radius: 10px;
  }
  .unit-canvas-preview { width: 38px; height: 38px; }
  .unit-card-name { font-size: 0.55rem; }
  .unit-card-cost { font-size: 0.62rem; }

  /* Abilities column: tighter */
  .abilities-row { gap: 4px; }
  .ability-btn {
    width: 48px;
    height: 48px;
    border-radius: 12px;
  }
  .ability-icon { font-size: 1.1rem; }
  .ability-label { font-size: 0.45rem; }

  /* Result/overlay screens */
  .result-box { padding: 24px 16px; }
  .result-title { font-size: 1.6rem; }
  .levels-grid { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); gap: 8px; }
  .level-card { padding: 10px 6px; }
}

/* ── Very small phones ≤ 400px ─────────────────────── */
@media (max-width: 400px) {
  .hud-resource .res-icon { display: none; }
  .wave-progress { display: none; }
  .hud-resource { padding: 4px 5px; }
  .unit-card { width: 52px; }
  .ability-btn { width: 42px; height: 42px; }
  .abilities-row { gap: 3px; }
}

/* ============================================
   LOADING SCREEN
   ============================================ */
#loading-screen {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, #1a0a4e 0%, #0a0a1a 70%);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  transition: opacity 0.6s ease;
}

#loading-screen.fade-out { opacity: 0; pointer-events: none; }

/* Icon float animation used on loading & menu */
@keyframes iconFloat {
  0%, 100% { transform: translateY(0px);    filter: drop-shadow(0 0 20px rgba(168,85,247,0.8)); }
  50%       { transform: translateY(-10px);  filter: drop-shadow(0 0 35px rgba(245,158,11,0.9)); }
}

.menu-icon-float {
  animation: iconFloat 3s ease-in-out infinite;
  display: block;
}

/* Logo icon wrapper */
.logo-icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: iconFloat 3s ease-in-out infinite;
}

.loading-logo {
  font-family: 'Orbitron', sans-serif;
  font-size: 2rem;
  font-weight: 900;
  background: linear-gradient(135deg, #f59e0b, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: pulse 1.5s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

.loading-bar-wrapper {
  width: 260px;
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
  overflow: hidden;
}

.loading-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #7c3aed, #a855f7, #f59e0b);
  background-size: 200%;
  animation: shimmer 1.5s linear infinite;
  transition: width 0.3s;
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.loading-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}