/* Basic CSS reset and utility classes */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
  line-height: 1.5;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.flex {
  display: flex;
}

.justify-center {
  justify-content: center;
}

.items-center {
  align-items: center;
}

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

.hidden {
  display: none;
}

.block {
  display: block;
}

.inline-block {
  display: inline-block;
}

.w-full {
  width: 100%;
}

.h-full {
  height: 100%;
}

.p-4 {
  padding: 1rem;
}

.p-8 {
  padding: 2rem;
}

.m-4 {
  margin: 1rem;
}

.mt-4 {
  margin-top: 1rem;
}

.mb-4 {
  margin-bottom: 1rem;
}

.ml-4 {
  margin-left: 1rem;
}

.mr-4 {
  margin-right: 1rem;
}

.bg-gray-100 {
  background-color: #f7fafc;
}

.bg-white {
  background-color: #fff;
}

.text-black {
  color: #000;
}

.text-gray-700 {
  color: #4a5568;
}

.text-xl {
  font-size: 1.25rem;
}

.text-2xl {
  font-size: 1.5rem;
}

.text-3xl {
  font-size: 1.875rem;
}

.font-bold {
  font-weight: 700;
}

.rounded {
  border-radius: 0.25rem;
}

.rounded-lg {
  border-radius: 0.5rem;
}

.shadow {
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.shadow-lg {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Responsive utilities */
@media (min-width: 640px) {
  .sm\:block {
    display: block;
  }
  
  .sm\:flex {
    display: flex;
  }
}

@media (min-width: 768px) {
  .md\:block {
    display: block;
  }
  
  .md\:flex {
    display: flex;
  }
}

@media (min-width: 1024px) {
  .lg\:block {
    display: block;
  }
  
  .lg\:flex {
    display: flex;
  }
}