html {
  font-family: "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Liberation Sans", Helvetica, Arial, sans-serif;
}

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

:root {
  --text-color: #212529;
  --bs-blue: #0d6efd;
  --bs-purple: #6f42c1;
  --bs-pink: #d63384;
  --bs-red: #dc3545;
  --bs-orange: #fd7e14;
  --bs-yellow: #ffc107;
  --bs-green: #198754;
  --bs-teal: #20c997;
  --bs-cyan: #0dcaf0;
  --bs-black: #000;
  --bs-white: #fff;
  --bs-gray: #6c757d;
  --bs-gray-dark: #343a40;
  --bs-gray-100: #f8f9fa;
  --bs-gray-200: #e9ecef;
  --bs-gray-400: #ced4da;
  --bs-gray-600: #6c757d;
  --bs-gray-800: #343a40;
  --bs-primary: #0d6efd;
  --bs-secondary: #6c757d;
  --bs-primary-rgb: 13, 110, 253;
  --bs-body-bg-rgb: 255, 255, 255;
  --bs-border-radius: 0.375rem;
  --bs-box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --bs-box-shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --bs-box-shadow-inset: inset 0 1px 2px rgba(0, 0, 0, 0.075);
  --bd-accent-rgb: 255, 228, 132;
  --bd-violet-rgb: 113, 44, 249;
  --bd-pink-rgb: 214, 51, 132;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background-image: linear-gradient(180deg, rgba(var(--bs-body-bg-rgb), .01), rgba(var(--bs-body-bg-rgb), 1) 85%), radial-gradient(ellipse at top left, rgba(var(--bs-primary-rgb), .5), transparent 50%), radial-gradient(ellipse at top right, rgba(var(--bd-accent-rgb), .5), transparent 50%), radial-gradient(ellipse at center right, rgba(var(--bd-violet-rgb), .5), transparent 50%), radial-gradient(ellipse at center left, rgba(var(--bd-pink-rgb), .5), transparent 50%);
}

.main {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
  padding: 1em;
}

.section {
  padding: 1.25rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-color);
}

p + p {
  margin-top: 2em;
}

.button {
  border-radius: 1rem;
  padding: 0.5rem 2rem;
  color: var(--bs-white);
  background-color: var(--bs-blue);
  box-shadow: var(--bs-box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15));
}

@media screen and (min-width:650px) {
  .section {
  }
}