/* Tailwind CSS Base Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

/* CSS Reset and Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

body {
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  font-family: 'Inter', sans-serif;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

/* Custom CSS Variables */
:root {
  --color-primary-50: #ecfdf5;
  --color-primary-100: #d1fae5;
  --color-primary-200: #a7f3d0;
  --color-primary-300: #6ee7b7;
  --color-primary-400: #34d399;
  --color-primary-500: #10b981;
  --color-primary-600: #059669;
  --color-primary-700: #047857;
  --color-primary-800: #065f46;
  --color-primary-900: #064e3b;
}

/* Dark mode */
.dark {
  color-scheme: dark;
}

/* Utility Classes */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .container {
    max-width: 640px;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 768px;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1024px;
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

@media (min-width: 1536px) {
  .container {
    max-width: 1536px;
  }
}

/* Background Colors */
.bg-white { background-color: #ffffff; }
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-800 { background-color: #1f2937; }
.bg-gray-900 { background-color: #111827; }
.bg-emerald-600 { background-color: var(--color-primary-600); }
.bg-emerald-700 { background-color: var(--color-primary-700); }
.bg-purple-500 { background-color: #8b5cf6; }
.bg-blue-500 { background-color: #3b82f6; }
.bg-orange-500 { background-color: #f97316; }
.bg-pink-50 { background-color: #fdf2f8; }
.bg-pink-500 { background-color: #ec4899; }
.bg-pink-600 { background-color: #db2777; }
.from-pink-500 { --tw-gradient-from: #ec4899; }
.to-rose-600 { --tw-gradient-to: #e11d48; }
.text-pink-100 { color: #fce7f3; }
.text-pink-200 { color: #fce7f3; }
.text-pink-800 { color: #9d174d; }
.border-pink-200 { border-color: #fce7f3; }
.border-pink-800 { border-color: #9d174d; }
.from-pink-50 { --tw-gradient-from: #fdf2f8; }
.to-rose-50 { --tw-gradient-to: #fdf2f8; }
.from-pink-900 { --tw-gradient-from: #831843; }
.to-rose-900 { --tw-gradient-to: #881337; }
.text-pink-700 { color: #be185d; }
.bg-pink-700 { background-color: #be185d; }
.from-pink-400 { --tw-gradient-from: #f472b6; }
.to-pink-600 { --tw-gradient-to: #db2777; }

/* Yellow color utilities for find differences game */
.bg-yellow-50 { background-color: #fefce8; }
.bg-yellow-500 { background-color: #eab308; }
.bg-yellow-600 { background-color: #ca8a04; }
.text-yellow-100 { color: #fef3c7; }
.text-yellow-200 { color: #fde68a; }
.text-yellow-800 { color: #92400e; }
.border-yellow-200 { border-color: #fde68a; }
.border-yellow-800 { border-color: #92400e; }
.from-yellow-50 { --tw-gradient-from: #fefce8; }
.to-amber-50 { --tw-gradient-to: #fffbeb; }
.from-yellow-900 { --tw-gradient-from: #78350f; }
.to-amber-900 { --tw-gradient-to: #78350f; }
.from-yellow-500 { --tw-gradient-from: #eab308; }
.to-amber-600 { --tw-gradient-to: #d97706; }

/* Teal color utilities for merge drop game */
.bg-teal-50 { background-color: #f0fdfa; }
.bg-teal-500 { background-color: #14b8a6; }
.bg-teal-600 { background-color: #0d9488; }
.text-teal-100 { color: #ccfbf1; }
.text-teal-200 { color: #99f6e4; }
.text-teal-800 { color: #115e59; }
.border-teal-200 { border-color: #99f6e4; }
.border-teal-800 { border-color: #115e59; }
.from-teal-50 { --tw-gradient-from: #f0fdfa; }
.to-cyan-50 { --tw-gradient-to: #ecfeff; }
.from-teal-900 { --tw-gradient-from: #134e4a; }
.to-cyan-900 { --tw-gradient-to: #164e63; }
.from-teal-500 { --tw-gradient-from: #14b8a6; }
.to-cyan-600 { --tw-gradient-to: #0891b2; }

/* Indigo color utilities for merge brainrot game */
.bg-indigo-50 { background-color: #eef2ff; }
.bg-indigo-500 { background-color: #6366f1; }
.bg-indigo-600 { background-color: #4f46e5; }
.text-indigo-100 { color: #e0e7ff; }
.text-indigo-200 { color: #c7d2fe; }
.text-indigo-800 { color: #3730a3; }
.border-indigo-200 { border-color: #c7d2fe; }
.border-indigo-800 { border-color: #3730a3; }
.from-indigo-50 { --tw-gradient-from: #eef2ff; }
.to-purple-50 { --tw-gradient-to: #faf5ff; }
.from-indigo-900 { --tw-gradient-from: #312e81; }
.to-purple-900 { --tw-gradient-to: #581c87; }
.from-indigo-500 { --tw-gradient-from: #6366f1; }
.to-purple-600 { --tw-gradient-to: #9333ea; }

/* Red color utilities for racing game */
.bg-red-50 { background-color: #fef2f2; }
.bg-red-500 { background-color: #ef4444; }
.bg-red-600 { background-color: #dc2626; }
.text-red-100 { color: #fee2e2; }
.text-red-200 { color: #fecaca; }
.text-red-800 { color: #991b1b; }
.border-red-200 { border-color: #fecaca; }
.border-red-800 { border-color: #991b1b; }
.from-red-50 { --tw-gradient-from: #fef2f2; }
.to-orange-50 { --tw-gradient-to: #fff7ed; }
.from-red-900 { --tw-gradient-from: #7f1d1d; }
.to-orange-900 { --tw-gradient-to: #7c2d12; }
.from-red-500 { --tw-gradient-from: #ef4444; }
.to-orange-600 { --tw-gradient-to: #ea580c; }

/* Additional yellow color utilities */
.bg-yellow-700 { background-color: #a16207; }
.text-yellow-700 { color: #a16207; }

/* Additional teal color utilities */
.bg-teal-700 { background-color: #0f766e; }
.text-teal-700 { color: #0f766e; }

/* Additional indigo color utilities */
.bg-indigo-700 { background-color: #4338ca; }
.text-indigo-700 { color: #4338ca; }

/* Additional red color utilities */
.bg-red-700 { background-color: #b91c1c; }
.text-red-700 { color: #b91c1c; }

.dark .bg-white { background-color: #111827; }
.dark .bg-gray-50 { background-color: #1f2937; }
.dark .bg-gray-800 { background-color: #374151; }
.dark .bg-gray-900 { background-color: #111827; }

/* Text Colors */
.text-gray-100 { color: #f3f4f6; }
.text-gray-200 { color: #e5e7eb; }
.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-white { color: #ffffff; }
.text-emerald-400 { color: var(--color-primary-400); }
.text-emerald-500 { color: var(--color-primary-500); }
.text-emerald-600 { color: var(--color-primary-600); }

.dark .text-gray-100 { color: #f3f4f6; }
.dark .text-gray-400 { color: #9ca3af; }
.dark .text-gray-900 { color: #f3f4f6; }

/* Hover States */
.hover\:text-emerald-400:hover { color: var(--color-primary-400); }
.hover\:text-emerald-500:hover { color: var(--color-primary-500); }
.hover\:text-emerald-600:hover { color: var(--color-primary-600); }
.hover\:text-emerald-700:hover { color: var(--color-primary-700); }
.hover\:text-gray-600:hover { color: #4b5563; }
.hover\:bg-emerald-700:hover { background-color: var(--color-primary-700); }
.hover\:bg-purple-700:hover { background-color: #7c3aed; }
.hover\:bg-blue-700:hover { background-color: #1d4ed8; }
.hover\:bg-orange-700:hover { background-color: #c2410c; }
.hover\:bg-pink-700:hover { background-color: #be185d; }
.hover\:bg-yellow-700:hover { background-color: #a16207; }
.hover\:shadow-xl:hover { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }

.dark .hover\:text-emerald-400:hover { color: var(--color-primary-400); }

/* Layout */
.flex { display: flex; }
.hidden { display: none; }
.block { display: block; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

.items-center { align-items: center; }
.items-baseline { align-items: baseline; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }

.space-x-2 > * + * { margin-left: 0.5rem; }
.space-x-4 > * + * { margin-left: 1rem; }
.space-x-6 > * + * { margin-left: 1.5rem; }
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-5 > * + * { margin-top: 1.25rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }

.divide-y > * + * { border-top-width: 1px; }
.divide-gray-200 > * + * { border-color: #e5e7eb; }
.dark .divide-gray-700 > * + * { border-color: #374151; }

/* Grid */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* Gap */
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

@media (min-width: 1280px) {
  .xl\:grid { display: grid; }
  .xl\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .xl\:col-span-3 { grid-column: span 3 / span 3; }
  .xl\:space-y-0 > * + * { margin-top: 0; }
  .xl\:max-w-5xl { max-width: 64rem; }
  .xl\:px-0 { padding-left: 0; padding-right: 0; }
}

/* Spacing */
.p-1 { padding: 0.25rem; }
.p-4 { padding: 1rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.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-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-10 { padding-top: 2.5rem; padding-bottom: 2.5rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.pt-2 { padding-top: 0.5rem; }
.pt-6 { padding-top: 1.5rem; }
.pb-3 { padding-bottom: 0.75rem; }
.pb-8 { padding-bottom: 2rem; }

.m-4 { margin: 1rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-16 { margin-top: 4rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.ml-1 { margin-left: 0.25rem; }
.ml-4 { margin-left: 1rem; }
.mr-1 { margin-right: 0.25rem; }
.mr-3 { margin-right: 0.75rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Typography */
.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-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

.leading-5 { line-height: 1.25rem; }
.leading-6 { line-height: 1.5rem; }
.leading-7 { line-height: 1.75rem; }
.leading-8 { line-height: 2rem; }
.leading-9 { line-height: 2.25rem; }

.tracking-tight { letter-spacing: -0.025em; }

.uppercase { text-transform: uppercase; }
.text-center { text-align: center; }

@media (min-width: 640px) {
  .sm\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
  .sm\:leading-10 { line-height: 2.5rem; }
  .sm\:block { display: block; }
  .sm\:hidden { display: none; }
  .sm\:p-4 { padding: 1rem; }
  .sm\:space-x-6 > * + * { margin-left: 1.5rem; }
  .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
}

@media (min-width: 768px) {
  .md\:text-6xl { font-size: 3.75rem; line-height: 1; }
  .md\:leading-14 { line-height: 3.5rem; }
  .md\:space-y-5 > * + * { margin-top: 1.25rem; }
}

/* Sizing */
.h-6 { height: 1.5rem; }
.h-8 { height: 2rem; }
.h-16 { height: 4rem; }
.h-20 { height: 5rem; }
.w-6 { width: 1.5rem; }
.w-8 { width: 2rem; }
.w-16 { width: 4rem; }
.w-20 { width: 5rem; }
.w-full { width: 100%; }
.max-w-none { max-width: none; }

/* Borders */
.border { border-width: 1px; }
.border-transparent { border-color: transparent; }
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-700 { border-color: #374151; }
.rounded { border-radius: 0.25rem; }
.rounded-md { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-full { border-radius: 9999px; }

/* Focus */
.focus\:outline-none:focus { outline: 2px solid transparent; outline-offset: 2px; }
.focus\:ring-2:focus { --tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color); --tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color); box-shadow: var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow, 0 0 #0000); }
.focus\:ring-offset-2:focus { --tw-ring-offset-width: 2px; }
.focus\:ring-emerald-500:focus { --tw-ring-color: var(--color-primary-500); }

/* Transitions */
.transition { transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-colors { transition-property: color, background-color, border-color, text-decoration-color, fill, stroke; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.duration-200 { transition-duration: 200ms; }
.duration-300 { transition-duration: 300ms; }

/* Shadows */
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px 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); }

/* Transform */
.group:hover .group-hover\:scale-105 { transform: scale(1.05); }

/* Gradients */
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-gradient-stops)); }
.from-emerald-400 { --tw-gradient-from: #34d399; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(52, 211, 153, 0)); }
.to-emerald-600 { --tw-gradient-to: #059669; }
.from-purple-400 { --tw-gradient-from: #a78bfa; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(167, 139, 250, 0)); }
.to-purple-600 { --tw-gradient-to: #9333ea; }
.from-blue-400 { --tw-gradient-from: #60a5fa; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(96, 165, 250, 0)); }
.to-blue-600 { --tw-gradient-to: #2563eb; }
.from-orange-400 { --tw-gradient-from: #fb923c; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(251, 146, 60, 0)); }
.to-orange-600 { --tw-gradient-to: #ea580c; }
.from-yellow-400 { --tw-gradient-from: #facc15; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(250, 204, 21, 0)); }
.to-yellow-600 { --tw-gradient-to: #ca8a04; }

/* Screen Reader Only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Prose */
.prose {
  color: #374151;
  max-width: 65ch;
}

.prose p {
  margin-top: 1.25em;
  margin-bottom: 1.25em;
}

.prose h1 {
  color: #111827;
  font-weight: 800;
  font-size: 2.25em;
  margin-top: 0;
  margin-bottom: 0.8888889em;
  line-height: 1.1111111;
}

.prose h2 {
  color: #111827;
  font-weight: 700;
  font-size: 1.5em;
  margin-top: 2em;
  margin-bottom: 1em;
  line-height: 1.3333333;
}

.dark .prose {
  color: #d1d5db;
}

.dark .prose h1,
.dark .prose h2 {
  color: #f9fafb;
}

/* Custom Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* Video Responsive */
.aspect-w-16 {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.aspect-w-16 iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Game iframe styles */
.game-container {
  position: relative;
  width: 100%;
  height: 660px;
  border: 2px solid #e5e7eb;
  border-radius: 0.375rem;
  overflow: hidden;
}

.dark .game-container {
  border-color: #374151;
}

.game-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Mobile Responsive */
@media (max-width: 639px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  .text-3xl {
    font-size: 1.5rem;
    line-height: 2rem;
  }
  
  .py-12 {
    padding-top: 2rem;
    padding-bottom: 2rem;
  }
}