:root {
  --bg-color: #050505;
  --accent-color: #ff3e3e; 
  --accent-gold: #ffd700;
  --text-main: #ffffff;
  --text-dim: rgba(255, 255, 255, 0.6);
  --card-bg: rgba(255, 255, 255, 0.03);
  --border-color: rgba(255, 255, 255, 0.08);
  --transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --font-main: 'Inter', sans-serif;
  --font-heading: 'Outfit', sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: transparent;
  color: var(--text-main);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
}

#canvas-3d {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

nav {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  gap: 20px;
  background: rgba(0,0,0,0.5);
  padding: 10px 20px;
  border-radius: 30px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
}

nav a {
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  opacity: 0.7;
  transition: 0.3s;
}

nav a:hover {
  opacity: 1;
}

nav a.active {
  opacity: 1;
  font-weight: bold;
}

main {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
  position: relative;
  z-index: 100;
}

.glass-card {
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(30px) saturate(150%);
  -webkit-backdrop-filter: blur(30px) saturate(150%);
  border: 1px solid var(--border-color);
  padding: 4rem;
  border-radius: 60px;
  max-width: 900px;
  width: 90%;
  box-shadow: 0 40px 100px -20px rgba(0, 0, 0, 0.8);
  animation: floatEffect 8s ease-in-out infinite;
  display: flex;
  flex-direction: column;
  align-items: center;
}

@keyframes floatEffect {
  0%, 100% { transform: translateY(0) rotate(0.5deg); }
  50% { transform: translateY(-20px) rotate(-0.5deg); }
}

.hero-text {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.5) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0;
  transform: translateY(40px);
  animation: entrance 1.4s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.2s;
}

.sub-text {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-dim);
  max-width: 500px;
  margin-bottom: 3rem;
  line-height: 1.8;
  letter-spacing: 0.02em;
  opacity: 0;
  transform: translateY(20px);
  animation: entrance 1.2s forwards 0.4s;
}

.cta-group {
  opacity: 0;
  transform: translateY(20px);
  animation: entrance 1.2s forwards 0.6s;
}

.btn {
  padding: 1.4rem 3.5rem;
  border-radius: 100px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.15rem;
  text-transform: uppercase;
  transition: var(--transition);
  cursor: pointer;
  display: inline-block;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary {
  background-color: var(--text-main);
  color: var(--bg-color);
}

.btn-primary:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 30px 60px rgba(255, 62, 62, 0.2);
  background-color: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
}

@keyframes entrance {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

footer {
  position: fixed;
  bottom: 0;
  width: 100%;
  padding: 2.5rem;
  text-align: center;
  font-size: 0.65rem;
  color: var(--text-dim);
  opacity: 0.5;
  letter-spacing: 0.3rem;
  text-transform: uppercase;
  pointer-events: none;
}

.hidden {
  display: none !important;
}

@media (max-width: 768px) {
  .glass-card {
    padding: 2.5rem;
    border-radius: 40px;
  }
}