:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --secondary: #ec4899;
  --bg-dark: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.7);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --glass-border: rgba(255, 255, 255, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Outfit', sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
}

/* Background Blobs for Premium Feel */
.blob {
  position: absolute;
  filter: blur(100px);
  z-index: -1;
  opacity: 0.5;
  animation: float 10s ease-in-out infinite alternate;
}

.blob-1 {
  top: -100px;
  left: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.blob-2 {
  bottom: -100px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
  animation-delay: -5s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, 50px) scale(1.1); }
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 5%;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 10;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(to right, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  margin-left: 2rem;
  font-weight: 500;
  transition: color 0.3s;
}

nav a:hover {
  color: #fff;
}

/* Main Content */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.hero {
  text-align: center;
  margin-bottom: 5rem;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(99, 102, 241, 0.1);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 1.5rem;
}

.gradient-text {
  background: linear-gradient(to right, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Modules Grid */
.section-title {
  width: 100%;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 3rem 0 1.5rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--glass-border);
}
.modules-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  width: 100%;
}

.module-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 2.5rem;
  text-decoration: none;
  color: var(--text-main);
  backdrop-filter: blur(12px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.module-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(99,102,241,0.1), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.module-card:hover {
  transform: translateY(-10px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.5), 0 0 20px rgba(99,102,241,0.2);
}

.module-card:hover::before {
  opacity: 1;
}

.module-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.module-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.module-card p {
  color: var(--text-muted);
  line-height: 1.5;
  flex: 1;
}

.module-arrow {
  margin-top: 2rem;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  transition: transform 0.3s;
}

.module-card:not(.disabled):hover .module-arrow {
  transform: translateX(10px);
}

.module-card.disabled {
  opacity: 0.6;
  pointer-events: none;
  filter: grayscale(1);
}

.module-card.disabled .module-arrow {
  color: var(--text-muted);
  font-size: 0.9rem;
  background: rgba(255,255,255,0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  width: max-content;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.875rem;
  border-top: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 3rem;
  }
  .hero p {
    font-size: 1.1rem;
  }
  nav {
    display: none;
  }
}