:root {
  --bg-grad-1: #fbfbfb;
  --bg-grad-2: #fdf5f6;
  --bg-grad-3: #fcf1f2;
  --bg-grad-4: #f8f9fa;
  --primary-red: #e3000f;
  --dark-red: #a8000b;
  --text-primary: #2b2b2b;
  --text-muted: #666666;
  
  --glass-bg: rgba(255, 255, 255, 0.45);
  --glass-border: rgba(255, 255, 255, 0.8);
  --glass-border-right: rgba(255, 255, 255, 0.3);
  --glass-shadow: rgba(0, 0, 0, 0.15);
  --glass-shadow-soft: rgba(0, 0, 0, 0.05);
  --glass-inner: rgba(255, 255, 255, 0.8);
}
[data-theme="dark"] {
  --bg-grad-1: #0a0000;
  --bg-grad-2: #140000;
  --bg-grad-3: #1a0003;
  --bg-grad-4: #080000;
  --primary-red: #ff3344;
  --dark-red: #e3000f;
  --text-primary: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.6);
  
  --glass-bg: rgba(20, 0, 0, 0.35);
  --glass-border: rgba(255, 255, 255, 0.15);
  --glass-border-right: rgba(255, 255, 255, 0.05);
  --glass-shadow: rgba(0, 0, 0, 0.8);
  --glass-shadow-soft: rgba(0, 0, 0, 0.4);
  --glass-inner: rgba(255, 255, 255, 0.05);
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}
body, html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-grad-1);
  background: linear-gradient(-45deg, var(--bg-grad-1), var(--bg-grad-2), var(--bg-grad-3), var(--bg-grad-4));
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  transition: background 0.8s ease-in-out;
}
@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  transition: opacity 0.8s ease-in-out;
}
.container {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px;
  perspective: 1200px;
}
.footer {
  position: absolute;
  bottom: 25px;
  left: 0;
  width: 100%;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 1px;
  z-index: 10;
  font-weight: 500;
  transition: color 0.8s ease-in-out;
  animation: slideUpFade 1.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
  transform: translateY(20px);
}
.footer a {
  color: var(--primary-red);
  text-decoration: none;
  font-weight: 800;
  transition: all 0.3s ease;
}
.footer a:hover {
  text-shadow: 0 0 10px var(--primary-red);
}