:root {
  /* Brand Colors */
  --primary-color: #0056b3; /* Deep Blue */
  --secondary-color: #00a8cc; /* Cyan/Teal */
  --accent-color: #ff9f1c; /* Orange for CTAs */
  --text-dark: #1a1a1a;
  --text-light: #f4f4f4;
  --text-muted: #666666;
  --bg-light: #ffffff;
  --bg-off-white: #f9f9f9;
  --bg-dark: #111111;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;

  /* Typography */
  --font-main: "Inter", sans-serif;
  --font-heading: "Outfit", sans-serif;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--bg-light);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2.5rem;
}
h2 {
  font-size: 2rem;
}
h3 {
  font-size: 1.5rem;
}

@media (min-width: 768px) {
  h1 {
    font-size: 3.5rem;
  }
  h2 {
    font-size: 2.5rem;
  }
  h3 {
    font-size: 1.75rem;
  }
}

.text-center {
  text-align: center;
}
.text-primary {
  color: var(--primary-color);
}
.text-accent {
  color: var(--accent-color);
}

/* Layout Utilities */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.section {
  padding: var(--spacing-lg) 0;
}

.grid {
  display: grid;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Components */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition-normal);
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background-color: #004494;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

.btn-outline:hover {
  background-color: var(--primary-color);
  color: white;
}

.card {
  background: white;
  padding: var(--spacing-md);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  border: 1px solid #eee;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* Header/Nav */
header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
}

.nav-links {
  display: none;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
    gap: var(--spacing-md);
  }
}

/* Hero Section */
.hero {
  padding-top: 120px;
  padding-bottom: var(--spacing-xl);
  background: linear-gradient(135deg, #f0f8ff 0%, #e6f2ff 100%);
  text-align: center;
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto var(--spacing-md);
}

/* Tracks Section */
.track-card {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.track-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin: var(--spacing-sm) 0;
}

/* Resources Section */
.resource-item {
  background: var(--bg-off-white);
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.copy-btn {
  background: var(--secondary-color);
  color: white;
  border: none;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.875rem;
}

.copy-btn:hover {
  opacity: 0.9;
}

/* Footer */
footer {
  background: var(--bg-dark);
  color: var(--text-light);
  padding: var(--spacing-lg) 0;
  text-align: center;
}