:root {
  --border-color: #222;
  --spacing: 10px;
  --big-spacing: 100px;
  --box-width: 500px;
  --shadow: rgba(0, 0, 0, 0.3) 0px 8px 8px;
  --overlay-shadow: rgba(0, 0, 0, 0.9) 0px 8px 8px;
  --fill: rgba(0, 0, 0, 0.3);
  --overlay: rgba(0, 0, 0, 0.9);
  --border: 1px solid #333;
  --text-color: #eee;
  --link-color: #fff6e2;
  --background: #333;
}

body {
  margin: 0;
  font-family: "Saira", Segoe UI Light, Tahoma, Arial, Helvetica, sans-serif;
  background: var(--background);
  color: var(--text-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

a, a:visited, a:active, a:hover {
  color: var(--link-color);
  text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

p.title, div.title {
  padding: 1.0em;
  text-align: center;
  font-weight: bold;
  font-size: 2.5em;
  text-shadow: 1px 1px 3px rgba(55,55,55,0.5);
}

p {
  padding-left: 2em;
  padding-top: 0.5em;
  font-size: 1em;
}

p.left {
  padding-left: 1em;
  line-height: 1.2em;
}

.small {
  text-align: center;
  font-size: 0.75em;
}

p.lowtitle {
  font-size: 1.25em;
  font-weight: bold;
  line-height: 1.1em;
  padding-top: 0;
  padding-left: 1.1em;
  padding-bottom: 1.1em;
  text-align: center;
}

p.subtitle {
  font-size: 1.75em;
  font-weight: bold;
  line-height: 1.1em;
  padding-top: 0;
  padding-left: 1.1em;
  padding-bottom: 0.1em;
}

h2 {
  margin: calc(var(--spacing) * 3);
  font-size: 1.75em;
  color: #fff;
}

h3 {
  font-size: 1.1em;
  text-transform: uppercase;
  margin: 0 0 calc(var(--spacing) * 2);
}

div.container {
  width: 95%;
  max-width: 1200px;
  margin: 0 auto;
}

div.row {
  clear: both;
}

/* Updated layout using flexbox */
.main-content {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing);
  margin-top: calc(var(--spacing));
  margin-bottom: 50px;
}

@media (max-width: 1080px) {
  .main-content {
    flex-direction: column;
  }
}

.box {
  flex: 1;
  min-width: 300px;
  border: var(--border);
  margin-top: var(--spacing);
  padding: calc(var(--spacing) * 2);
  background-color: var(--fill);
  box-shadow: var(--shadow);
  border-radius: 30px;
}

.box img {
  max-width: 100%;
  height: auto;
  box-shadow: 0 0 16px rgba(0,0,0,0.5);
  display: block;
  margin: 0 auto 1em auto;
}

div.column-left {
  flex: 0 0 340px;
  text-align: center;
}

div.column-right {
  flex: 1;
  min-height: 264px;
}

div.column-right-s {
  flex: 1;
  min-height: 206px;
}

div.footer {
  padding-bottom: 8px;
}

/* Navigation header */
.nav-header {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--fill);
  margin-bottom: calc(var(--spacing) * 2);
}

.nav-header a {
  margin: 0 var(--spacing);
  padding: var(--spacing);
  border-radius: 10px;
  transition: opacity 0.3s;
}

.nav-header a:hover {
  opacity: 0.7;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .box {
    padding: var(--spacing);
  }
  p.title, div.title {
    font-size: 2em;
    padding: 1em;
  }
}