html {
  box-sizing: border-box;
  font-size: 16px;
}

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

body {
  font-family: "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px;
}

.column, .columns {
  flex: 1;
  padding: 0 10px;
}

.one-half.column, .six.columns {
  flex: 0 0 50%;
  max-width: 50%;
}

.one-third.column, .four.columns {
  flex: 0 0 33.333333%;
  max-width: 33.333333%;
}

.two-thirds.column, .eight.columns {
  flex: 0 0 66.666667%;
  max-width: 66.666667%;
}

.one-fourth.column, .three.columns {
  flex: 0 0 25%;
  max-width: 25%;
}

.three-fourths.column, .nine.columns {
  flex: 0 0 75%;
  max-width: 75%;
}

.one-fifth.column {
  flex: 0 0 20%;
  max-width: 20%;
}

.two-fifths.column {
  flex: 0 0 40%;
  max-width: 40%;
}

.three-fifths.column {
  flex: 0 0 60%;
  max-width: 60%;
}

.four-fifths.column {
  flex: 0 0 80%;
  max-width: 80%;
}

.one-sixth.column, .two.columns {
  flex: 0 0 16.666667%;
  max-width: 16.666667%;
}

.five-sixths.column, .ten.columns {
  flex: 0 0 83.333333%;
  max-width: 83.333333%;
}

.twelve.columns {
  flex: 0 0 100%;
  max-width: 100%;
}

.offset-by-one {
  margin-left: 8.333333%;
}

.offset-by-two {
  margin-left: 16.666667%;
}

.offset-by-three {
  margin-left: 25%;
}

.offset-by-four {
  margin-left: 33.333333%;
}

.offset-by-five {
  margin-left: 41.666667%;
}

.offset-by-six {
  margin-left: 50%;
}

.offset-by-seven {
  margin-left: 58.333333%;
}

.offset-by-eight {
  margin-left: 66.666667%;
}

.offset-by-nine {
  margin-left: 75%;
}

.offset-by-ten {
  margin-left: 83.333333%;
}

.offset-by-eleven {
  margin-left: 91.666667%;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-weight: 600;
  line-height: 1.2;
  color: #222;
}

h1 {
  font-size: 2.5rem;
  font-weight: 300;
}

h2 {
  font-size: 2rem;
  font-weight: 300;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1rem;
}

h6 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
}

a {
  color: #1eaedb;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #0f7a8a;
  text-decoration: underline;
}

ul, ol {
  margin-top: 0;
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.25rem;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

th, td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid #e1e1e1;
}

th {
  font-weight: 600;
  border-bottom: 2px solid #d1d1d1;
}

button, .button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  margin-bottom: 0;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #fff;
  background-color: #1eaedb;
  border: 1px solid #1eaedb;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

button:hover, .button:hover {
  background-color: #0f7a8a;
  border-color: #0f7a8a;
  text-decoration: none;
}

button.secondary, .button.secondary {
  background-color: #fff;
  color: #1eaedb;
}

button.secondary:hover, .button.secondary:hover {
  background-color: #f8f8f8;
  color: #0f7a8a;
}

input[type="text"], input[type="email"], input[type="password"], input[type="search"], input[type="url"], input[type="tel"], input[type="number"], textarea, select {
  width: 100%;
  padding: 0.75rem;
  margin-bottom: 1rem;
  font-size: 1rem;
  font-family: inherit;
  color: #333;
  background-color: #fff;
  border: 1px solid #d1d1d1;
  border-radius: 4px;
  transition: border-color 0.2s ease;
}

input[type="text"]:focus, input[type="email"]:focus, input[type="password"]:focus, input[type="search"]:focus, input[type="url"]:focus, input[type="tel"]:focus, input[type="number"]:focus, textarea:focus, select:focus {
  outline: none;
  border-color: #1eaedb;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
}

hr {
  margin: 2rem 0;
  border: 0;
  border-top: 1px solid #e1e1e1;
}

code, pre {
  font-family: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;
  font-size: 0.875rem;
  background-color: #f5f5f5;
  border-radius: 4px;
}

code {
  padding: 0.125rem 0.25rem;
}

pre {
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}

pre code {
  padding: 0;
  background: none;
}

blockquote {
  margin: 0 0 1rem;
  padding: 0.5rem 1rem;
  border-left: 4px solid #1eaedb;
  color: #555;
  font-style: italic;
}

header {
  padding: 2rem 0;
  border-bottom: 1px solid #e1e1e1;
  margin-bottom: 2rem;
}

header h1 {
  margin-bottom: 0;
}

nav {
  margin-bottom: 2rem;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 1.5rem;
}

nav li {
  margin: 0;
}

nav a {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.875rem;
}

main {
  min-height: 50vh;
}

footer {
  padding: 2rem 0;
  margin-top: 3rem;
  border-top: 1px solid #e1e1e1;
  color: #777;
  font-size: 0.875rem;
  text-align: center;
}

@media (max-width: 768px) {
  .column, .columns {
    flex: 0 0 100%;
    max-width: 100%;
  }
  
  .offset-by-one, .offset-by-two, .offset-by-three, .offset-by-four, .offset-by-five, .offset-by-six, .offset-by-seven, .offset-by-eight, .offset-by-nine, .offset-by-ten, .offset-by-eleven {
    margin-left: 0;
  }
  
  nav ul {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
}