:root {
  --brand-primary: #6366f1;
  /* Indigo 500 */
  --brand-secondary: #0ea5e9;
  /* Sky 500 */
  --brand-accent: #f59e0b;
  /* Amber 500 */
  --bg-dark: #0f172a;
  /* Slate 900 */
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-dark);
  color: #1e293b;
  overflow-x: hidden;
}

.serif {
  font-family: 'Playfair Display', serif;
}

/* Modern Glassmorphism */
.glass-nav {
  background: rgba(15, 23, 42);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-card-v2 {
  background: rgba(30, 41, 59, 0.7);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card-v2:hover {
  transform: translateY(-8px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
}

/* Animated Gradients */
.text-gradient {
  background: linear-gradient(135deg, #818cf8 0%, #38bdf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.bg-gradient-premium {
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
}

/* Custom Button */
.btn-v2 {
  position: relative;
  padding: 12px 28px;
  border-radius: 9999px;
  font-weight: 600;
  overflow: hidden;
  transition: all 0.3s ease;
  z-index: 1;
}

.btn-v2::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
  transition: opacity 0.3s ease;
  z-index: -1;
}

.btn-v2:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -10px rgba(99, 102, 241, 0.5);
}

/* Floating Animation */
@keyframes float-v2 {

  0%,
  100% {
    transform: translateY(0) rotate(0);
  }

  50% {
    transform: translateY(-20px) rotate(2deg);
  }
}

.animate-float-v2 {
  animation: float-v2 8s ease-in-out infinite;
}

/* Shimmer Effect */
@keyframes shimmer-v2 {
  0% {
    transform: translateX(-100%);
  }

  100% {
    transform: translateX(100%);
  }
}

.shimmer-v2 {
  position: relative;
  overflow: hidden;
}

.shimmer-v2::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transform: skewX(-20deg);
  animation: shimmer-v2 3s infinite;
}

/* Nav Link Animation */
.nav-link-v2 {
  position: relative;
  color: #94a3b8;
  transition: color 0.3s ease;
}

.nav-link-v2:hover {
  color: #f8fafc;
}

.nav-link-v2::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand-primary);
  transition: width 0.3s ease;
}

.nav-link-v2:hover::after {
  width: 100%;
}

/* Glow Effects */
.glow-indigo {
  box-shadow: 0 0 50px -10px rgba(99, 102, 241, 0.3);
}

.glow-sky {
  box-shadow: 0 0 50px -10px rgba(14, 165, 233, 0.3);
}
@keyframes gradient-shift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.animate-gradient-bg {
    background: linear-gradient(-45deg, #f8faff, #eef2ff, #f0f9ff, #e0e7ff);
    background-size: 400% 400%;
    animation: gradient-shift 8s ease infinite;
}

.session-card {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(226, 232, 240, 0.6);
    border-radius: 1.25rem;
    padding: 0.875rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.session-card:hover {
    background-color: #ffffff;
    transform: translate(8px, -4px);
    border-color: #6366f1;
    box-shadow: 0 20px 25px -5px rgba(99, 102, 241, 0.1);
}

.track-number {
    position: absolute;
    top: -1rem;
    right: 1.5rem;
    font-size: 5rem;
    font-weight: 900;
    color: rgba(99, 102, 241, 0.05);
    pointer-events: none;
    line-height: 1;
}

@keyframes orbit {
    from {
        transform: rotate(0deg) translateX(150px) rotate(0deg);
    }

    to {
        transform: rotate(360deg) translateX(150px) rotate(-360deg);
    }
}

.animate-orbit {
    animation: orbit 20s linear infinite;
}

.animate-orbit-reverse {
    animation: orbit 30s linear infinite reverse;
}

.animate-orbit-fast {
    animation: orbit 15s linear infinite;
}