@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Playfair+Display:ital,wght@0,400;0,600;1,400&display=swap');

:root {
  --off-white: #F7F7FA;
  --charcoal: #1F1F24;
  --brand-blue: #2D3748;
  --muted-text: #64748B;
  --accent-light: #E2E8F0;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--off-white);
  color: var(--charcoal);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  line-height: 1.2;
  color: var(--brand-blue);
}

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Animations */
[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-animate].animate-in {
  opacity: 1;
  transform: translateY(0);
}

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* Custom Utilities */
.text-huge {
  font-size: clamp(1.5rem, 4.5vw, 5rem);
}

.section-padding {
  padding: 8rem 0;
}

.glass-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Nav Styles */
nav {
  transition: all 0.3s ease;
}

nav.scrolled {
  background: rgba(247, 247, 250, 0.9);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  border-bottom: 1px solid var(--accent-light);
}

/* Custom Grid for Case Studies */
.case-study-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.ticker-chip {
  background: var(--accent-light);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--brand-blue);
}

/* Mobile Menu */
#mobile-menu {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

#mobile-menu.hidden {
  transform: translateX(100%);
  display: none;
}