body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background-color: #f9f9f9;
}

header,
footer {
  background-color: #000000;
  color: #009420;
  padding: 6px 14px;
  text-align: center;
}

header .top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: auto;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: var(--logo-height, 60px); /* можно менять вручную */
  width: auto;
  max-height: 80px;
}

.register-btn {
  background-color: #009219;
  border: none;
  padding: 0.75em 1.8em;
  color: #fff;
  font-size: 1em;
  cursor: pointer;
  position: absolute;
  top: 4.5%;
  right: 45px;
  border-radius: 10px;
}

.container {
  max-width: 900px;
  margin: 20px auto;
  padding: 0 15px;
}

h1 {
  color: #222;
  text-align: center;
}

h2 {
  color: #222;
  text-align: left;
}

img {
  display: block;
  margin: 20px auto;
  max-width: 100%;
  height: auto;
}

.cta-btn {
  display: block;
  margin: 10px auto 40px;
  padding: 0.75em 1.5em;
  background-color: #009219;
  color: #fff;
  text-align: center;
  border: none;
  border-radius: 10px;
  text-decoration: none;
  font-size: 1em;
  width: fit-content;
}

footer {
  font-size: 0.9em;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

table,
th,
td {
  border: 1px solid #ccc;
  padding: 10px;
}

th {
  background-color: #f0f0f0;
}

@media (max-width: 768px) {
  .register-btn {
    position: static;
    display: block;
    margin: 1em auto 0;
  }

  .go-btn {
    width: 90%;
    font-size: 1em;
  }
}