/* Cyberpunk / Apple Minimal Styling System for Dr. Neil Universe */

@import url('https://fonts.googleapis.com/css2?family=Inter:opsz,wght@14..32,400;14..32,500;14..32,600;14..32,700&display=swap');

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

body {
  font-family: 'Inter', sans-serif;
  background: #070b1a;
  color: #eaf0fc;
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  user-select: none;
}

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

/* UI Overlay */
.ui-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
}

.ui-overlay > * {
  pointer-events: auto;
}

/* Landing Title - Moved to Bottom-Most Screen Position */
.hero {
  position: fixed;
  bottom: 1.5rem;
  left: 0;
  width: 100%;
  text-align: center;
  pointer-events: none;
  animation: fadeIn 2.5s ease forwards;
  opacity: 0;
  z-index: 15;
}

.hero h1 {
  font-weight: 700;
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff, #d6e4ff, #7a9eff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 35px rgba(90, 150, 255, 0.4);
  margin-bottom: 0;
}

/* Dynamic 3D Projected Floating Planet Label */
.planet-label {
  position: absolute;
  pointer-events: none;
  color: white;
  font-weight: 500;
  text-shadow: 0 0 20px rgba(0, 160, 255, 0.8);
  background: rgba(10, 14, 30, 0.65);
  backdrop-filter: blur(8px);
  padding: 6px 16px;
  border-radius: 40px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 0.875rem;
  white-space: nowrap;
  transform: translate(-50%, -50%);
  transition: opacity 0.25s ease, transform 0.25s ease;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

/* Glassmorphism Panel Drawer */
.glass-panel {
  background: rgba(10, 14, 30, 0.85);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 24px;
  box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.7);
}

.btn-primary {
  background: linear-gradient(135deg, #7a9eff 0%, #3b82f6 100%);
  color: #ffffff;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 9999px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 0 25px rgba(122, 158, 255, 0.4);
  transition: all 0.25s ease;
}

.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 0 35px rgba(122, 158, 255, 0.65);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 8px 18px;
  border-radius: 9999px;
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: #7a9eff;
}

/* Animations */
@keyframes fadeIn {
  0% { opacity: 0; transform: translateY(10px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* Modal Scrollbar */
.modal-scroll::-webkit-scrollbar {
  width: 6px;
}
.modal-scroll::-webkit-scrollbar-track {
  background: rgba(6, 9, 20, 0.9);
}
.modal-scroll::-webkit-scrollbar-thumb {
  background: rgba(122, 158, 255, 0.5);
  border-radius: 9999px;
}