/* ALIEN DEFENSE - CLEAN & SIMPLE */

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

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

:root {
  --bg: #0a0e1a;
  --card: #141824;
  --border: #2d3748;
  --primary: #3b82f6;
  --success: #10b981;
  --danger: #ef4444;
  --text: #e5e7eb;
  --text-dim: #9ca3af;
}

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

.game-container {
  width: 100vw;
  height: 100vh;
}

.main-area {
  width: 100%;
  height: 100vh;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Top Bar */
.top-bar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-section img {
  width: 40px;
  height: 40px;
}

.logo-section h1 {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--primary);
}

.stats-bar {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.stat-item i {
  font-size: 1.5rem;
  color: var(--primary);
}

.stat-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 900;
}

/* Controls */
.controls-bar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.5rem;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.control-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.control-item label {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 600;
}

.control-item select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem;
  border-radius: 6px;
  cursor: pointer;
}

.icon-btn {
  width: 36px;
  height: 36px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.2s;
}

.icon-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

input[type="range"] {
  width: 100px;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

/* Rules */
.rules-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.5rem;
}

.rules-section h3 {
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.rule {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.rule i {
  color: var(--success);
  font-size: 1.1rem;
}

/* Game */
.game-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.game-canvas-container {
  position: relative;
  width: 100%;
  max-width: 900px;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid var(--border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

#gameCanvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  background: linear-gradient(180deg, var(--bg) 0%, var(--card) 100%);
}

/* Overlays */
.game-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 14, 26, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.game-overlay.hidden {
  display: none;
}

.overlay-content {
  text-align: center;
  padding: 2rem;
  max-width: 500px;
}

.game-title {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.game-title span {
  color: var(--success);
}

.overlay-content p {
  color: var(--text-dim);
  margin-bottom: 2rem;
}

.overlay-content h2 {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--danger);
  margin-bottom: 1.5rem;
}

.play-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 1rem 3rem;
  border-radius: 8px;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: 0.2s;
}

.play-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.final-stats {
  display: flex;
  gap: 2rem;
  justify-content: center;
  margin: 1.5rem 0;
}

.final-stats div {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--card);
  border-radius: 8px;
  min-width: 100px;
  border: 1px solid var(--border);
}

.final-stats span {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.final-stats strong {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary);
}

.overlay-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
  padding: 0.875rem 2rem;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  transition: 0.2s;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--primary);
}

/* Power-ups & Warnings */
.active-powerups {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 50;
}

.warning-message {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--danger);
  color: white;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  font-weight: 700;
  z-index: 75;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: pulse 1s infinite;
}

.warning-message.hidden {
  display: none;
}

@keyframes pulse {

  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
  }

  50% {
    transform: translate(-50%, -50%) scale(1.05);
  }
}

/* Mobile Controls */
.mobile-controls {
  display: none;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.mobile-btn {
  width: 60px;
  height: 60px;
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-btn-fire {
  width: 75px;
  height: 75px;
  background: var(--danger);
  color: white;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(200px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.875rem 1.5rem;
  z-index: 2000;
  opacity: 0;
  transition: 0.3s;
  min-width: 250px;
  text-align: center;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  border-color: var(--success);
  color: var(--success);
}

.toast.error {
  border-color: var(--danger);
  color: var(--danger);
}

/* Achievement */
.achievement {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--card);
  border: 1px solid var(--success);
  border-left: 4px solid var(--success);
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 2000;
  min-width: 280px;
}

.achievement.hidden {
  display: none;
}

.achievement i {
  font-size: 2rem;
  color: var(--success);
}

/* Particles */
.particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--primary);
  border-radius: 50%;
  animation: float-particle 5s linear infinite;
  opacity: 0;
}

@keyframes float-particle {
  0% {
    transform: translateY(100vh);
    opacity: 0;
  }

  10% {
    opacity: 0.5;
  }

  90% {
    opacity: 0.5;
  }

  100% {
    transform: translateY(-100px);
    opacity: 0;
  }
}

/* Scrollbar */
.main-area::-webkit-scrollbar {
  width: 6px;
}

.main-area::-webkit-scrollbar-track {
  background: var(--bg);
}

.main-area::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

/* Responsive */
@media (max-width: 968px) {
  .mobile-controls {
    display: flex;
  }
}

/* Utilities */
.hidden {
  display: none !important;
}