@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --background: #ffffff;
  --foreground: #0f172a;
  --card: #ffffff;
  --card-foreground: #0f172a;
  --popover: #ffffff;
  --popover-foreground: #0f172a;
  --primary: #0f172a;
  --primary-foreground: #ffffff;
  --secondary: #f1f5f9;
  --secondary-foreground: #0f172a;
  --muted: #f8fafc;
  --muted-foreground: #64748b;
  --accent: #f1f5f9;
  --accent-foreground: #0f172a;
  --destructive: #ef4444;
  --destructive-foreground: #ffffff;
  --border: rgba(0, 0, 0, 0.1);
  --input: #f8fafc;
  --radius: 1rem;
}

.dark {
  --background: #0f172a;
  --foreground: #f8fafc;
  --card: #1e293b;
  --card-foreground: #f8fafc;
  --popover: #1e293b;
  --popover-foreground: #f8fafc;
  --primary: #f8fafc;
  --primary-foreground: #0f172a;
  --secondary: #334155;
  --secondary-foreground: #f8fafc;
  --muted: #1e293b;
  --muted-foreground: #94a3b8;
  --accent: #334155;
  --accent-foreground: #f8fafc;
  --destructive: #ef4444;
  --destructive-foreground: #ffffff;
  --border: #334155;
  --input: #1e293b;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--background);
  color: var(--foreground);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--background);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--muted-foreground);
}

.scrollbar-hide::-webkit-scrollbar {
  display: none;
}
.scrollbar-hide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.4s ease forwards;
}

.book-stack-img {
  transition: transform 0.5s ease;
}
.book-stack-container:hover .book-stack-img {
  transform: scale(1.05) rotate(2deg);
}

/* Smooth Scrolling & Sticky Header Offset */
html {
  scroll-behavior: smooth;
}

#books-section,
#new-arrivals-section {
  scroll-margin-top: 110px;
}