@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;700&display=swap');

:root {
  --bg-color: #030308;
  --panel-bg: rgba(10, 10, 20, 0.55);
  --panel-border: rgba(255, 255, 255, 0.08);
  --glow-color: rgba(0, 242, 254, 0.3);
  --accent-color: #00f2fe;
  --accent-secondary: #4facfe;
  --text-primary: #ffffff;
  --text-secondary: #a0a0c0;
  --font-family: 'Space Grotesk', sans-serif;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-family);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  user-select: none;
}

#canvas-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Glassmorphism Controls Panel */
.dashboard {
  position: absolute;
  top: 24px;
  left: 24px;
  z-index: 10;
  width: 350px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}

.dashboard::-webkit-scrollbar {
  width: 4px;
}

.dashboard::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
}

.dashboard.collapsed {
  transform: translateX(-400px);
  opacity: 0;
  pointer-events: none;
}

header h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 1px;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
  text-transform: uppercase;
}

header p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-label {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

.control-value {
  color: var(--accent-color);
  font-weight: bold;
  font-variant-numeric: tabular-nums;
}

/* Custom Sliders */
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.15);
  outline: none;
  transition: background 0.3s;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-color);
  cursor: pointer;
  box-shadow: 0 0 10px var(--glow-color);
  transition: transform 0.1s, background-color 0.3s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* Color theme buttons */
.theme-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.theme-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 8px 4px;
  font-family: var(--font-family);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  text-align: center;
}

.theme-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}

.theme-btn.active {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent-color);
  box-shadow: 0 0 12px var(--glow-color);
}

/* Action button (Preset Toggle) */
.action-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent-color) 100%);
  border: none;
  color: #000000;
  border-radius: 8px;
  padding: 12px;
  font-family: var(--font-family);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.2);
  letter-spacing: 0.5px;
}

.action-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 242, 254, 0.4);
}

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

/* Floating toggles */
.toggle-ui-btn {
  position: absolute;
  bottom: 24px;
  left: 24px;
  z-index: 10;
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  color: var(--text-primary);
  padding: 12px 20px;
  border-radius: 30px;
  font-family: var(--font-family);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: all 0.3s;
}

.toggle-ui-btn:hover {
  border-color: var(--accent-color);
  box-shadow: 0 0 12px var(--glow-color);
}

/* Help text overlay */
.mouse-indicator {
  position: absolute;
  bottom: 28px;
  right: 28px;
  z-index: 5;
  pointer-events: none;
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0.6;
  transition: opacity 0.3s;
}

.mouse-indicator svg {
  animation: float 2s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-4px); }
}

/* Info Tooltip/Footer inside panel */
.dashboard-footer {
  font-size: 11px;
  color: var(--text-secondary);
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  line-height: 1.4;
}

/* Mobile responsive overlay adjustments */
@media (max-width: 480px) {
  .dashboard {
    width: calc(100% - 32px);
    top: 16px;
    left: 16px;
    max-height: calc(100vh - 100px);
    padding: 20px;
  }
  
  .dashboard.collapsed {
    transform: translateY(-100%);
    opacity: 0;
  }
  
  .toggle-ui-btn {
    bottom: 16px;
    left: 16px;
  }
  
  .mouse-indicator {
    display: none;
  }
}