/* Custom CSS Variables for smooth theming */
:root {
  --bg-color: #050507;
  --text-primary: #ffffff;
  --text-secondary: #9ca3af;
  --glass-bg: rgba(20, 20, 25, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --accent: #3b82f6; /* Premium Blue for Dark Mode */
  --cursor-color: white;
}

[data-theme="light"] {
  --bg-color: #f0f2f5;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(0, 0, 0, 0.06);
  --accent: #2563eb; /* Deep Royal Blue for Light Mode */
  --cursor-color: black;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  transition: background-color 0.8s ease, color 0.8s ease;
  overflow-x: hidden;
}

/* WebGL Background Container */
#canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  opacity: 0; /* Fade in via JS */
  transition: opacity 1.5s ease;
}

/* Glassmorphism Utilities */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  transition: transform 0.3s ease, background 0.5s ease, border-color 0.5s ease;
}

.glass-panel:hover {
  border-color: var(--accent);
}

/* Typography & Layout details */
.section-padding {
  padding-top: 8rem;
  padding-bottom: 8rem;
}

.gradient-text {
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-image: linear-gradient(
    135deg,
    var(--text-primary) 50%,
    var(--text-secondary)
  );
}

/* Smooth Scroll behavior */
html {
  scroll-behavior: smooth;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--text-secondary);
  border-radius: 4px;
  opacity: 0.5;
}

/* UI Controls */
.control-btn {
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.control-btn:active {
  transform: scale(0.95);
}

.theme-toggle svg {
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
[data-theme="light"] .sun-icon {
  opacity: 0;
  transform: rotate(90deg) scale(0);
}
[data-theme="light"] .moon-icon {
  opacity: 1;
  transform: rotate(0) scale(1);
}
[data-theme="dark"] .sun-icon {
  opacity: 1;
  transform: rotate(0) scale(1);
}
[data-theme="dark"] .moon-icon {
  opacity: 0;
  transform: rotate(-90deg) scale(0);
}

/* Loader */
#loader {
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 100;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 0.8s ease;
}

/* Dropdown Animation */
.dropdown-menu {
  opacity: 0;
  transform: translateY(-10px) scale(0.95);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.dropdown-menu.active {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}