/* Main CSS for IITB Trust Lab Web Recreation */
@import './variables.css';

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-family-base);
  color: var(--text-main);
  background-color: #ffffff;
}

body {
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Utility Layout Classes */
.min-h-screen { min-height: 100vh; }
.max-w-7xl { max-width: 80rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Spacing */
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }

/* Flex & Grid */
.flex { display: flex; }
.grid { display: grid; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }

/* Grid Columns */
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }

/* Colors & Backgrounds */
.bg-white { background-color: #ffffff; }
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-200 { background-color: #e5e7eb; }
.bg-gray-900 { background-color: #111827; }
.bg-blue-100 { background-color: #dbeafe; }
.bg-blue-600 { background-color: #2563eb; }
.bg-gradient-to-b { background-image: linear-gradient(to bottom, var(--tw-gradient-stops)); }
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-gradient-stops)); }
.from-gray-50 { --tw-gradient-from: #f9fafb; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(249, 250, 251, 0)); }
.to-white { --tw-gradient-to: #ffffff; }
.from-blue-100 { --tw-gradient-from: #dbeafe; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(219, 234, 254, 0)); }
.to-blue-50 { --tw-gradient-to: #eff6ff; }
.from-gray-200 { --tw-gradient-from: #e5e7eb; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(229, 231, 235, 0)); }
.to-gray-100 { --tw-gradient-to: #f3f4f6; }

/* Borders & Shadows */
.border { border-width: 1px; border-style: solid; }
.border-b { border-bottom-width: 1px; border-bottom-style: solid; }
.border-t { border-top-width: 1px; border-top-style: solid; }
.border-gray-100 { border-color: #f3f4f6; }
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-300 { border-color: #d1d5db; }
.border-gray-700 { border-color: #374151; }
.border-blue-600 { border-color: #2563eb; }
.border-white { border-color: #ffffff; }

.rounded { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: 9999px; }
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }

/* Typography */
.text-center { text-align: center; }
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.tracking-tight { letter-spacing: -0.025em; }

.text-gray-400 { color: #9ca3af; }
.text-gray-500 { color: #6b7280; }
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-gray-900 { color: #111827; }
.text-blue-600 { color: #2563eb; }
.text-blue-700 { color: #1d4ed8; }
.text-white { color: #ffffff; }

/* Interactive Hover States */
.hover\:text-black:hover { color: #000000; }
.hover\:text-white:hover { color: #ffffff; }
.hover\:bg-blue-50:hover { background-color: #eff6ff; }
.hover\:bg-blue-700:hover { background-color: #1d4ed8; }
.hover\:bg-gray-100:hover { background-color: #f3f4f6; }
.hover\:shadow-lg:hover { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); transform: translateY(-1px); }

.transition { transition: all 0.2s ease-in-out; }
.transition-colors { transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out; }

/* Positioning & Layout */
.sticky { position: sticky; }
.top-0 { top: 0; }
.z-50 { z-index: 50; }
.w-full { width: 100%; }
.h-32 { height: 8rem; }
.h-40 { height: 10rem; }
.w-12 { width: 3rem; }
.h-12 { height: 3rem; }
.w-20 { width: 5rem; }
.h-20 { height: 5rem; }
.overflow-hidden { overflow: hidden; }
.cursor-pointer { cursor: pointer; }

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .grid-cols-5 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .grid-cols-3, .grid-cols-4, .grid-cols-5 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .text-5xl { font-size: 2.25rem; }
  .text-3xl { font-size: 1.5rem; }
  .flex-wrap { flex-wrap: wrap; }
}

/* Modal Backdrop & Animations */
.fixed { position: fixed; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.bg-black\/50 { background-color: rgba(0, 0, 0, 0.5); }
.backdrop-blur-sm { backdrop-filter: blur(4px); }
.hidden { display: none !important; }

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
.animate-fade-in { animation: fadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards; }