/* W3Schools-stila vienkāršs risinājums ar CSS Grid */
body { margin: 0; font-family: Arial, sans-serif; color: #222; background: #ffffff; }
a { color: #0066cc; text-decoration: none; }
a:visited { color: #663399; }
a:hover { text-decoration: underline; }

.grid {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr auto;
  grid-template-areas: "header" "main" "footer";
  min-height: 100vh;
}

.header {
  grid-area: header;
  display: grid;
  grid-template-columns: 200px 1fr;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid #ddd;
  background: #f7fbff;
}
.logo img { height: 40px; display: block; }

.menu { display: flex; gap: 14px; flex-wrap: wrap; }
.menu a { padding: 6px 10px; border-radius: 4px; background: #e9f2fb; }
.menu a:hover { background: #d6e8f9; }

.main { grid-area: main; padding: 0; }
.main iframe { width: 100%; height: calc(100vh - 160px); border: none; background: #fff; }

.footer {
  grid-area: footer;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-top: 1px solid #ddd;
  background: #fafafa;
  font-size: 14px;
}
.footer-right { display: flex; gap: 12px; }

.valid-css {
  text-align: center;
  margin: 12px 0;
}

.valid-css img {
  border: none;
  vertical-align: middle;
}

@media (max-width: 700px) {
  .header { grid-template-columns: 1fr; justify-items: start; }
  .menu { margin-top: 6px; }
  .main iframe { height: 60vh; }
}

.page { max-width: 900px; margin: 20px auto; padding: 0 12px; }
.page h1, .page h2 { text-align: center; }
.page p { text-align: justify; }

.img-wrap { position: relative; height: 360px; border: 1px dashed #ccc; margin: 20px 0; }
.img-rel { position: relative; left: 10px; top: 10px; border: 2px solid #66a3ff; }
.img-abs { position: absolute; left: 160px; top: 60px; border: 2px solid #ffb266; }
.img-fix { position: fixed; right: 12px; bottom: 12px; border: 2px solid #6bbf59; box-shadow: 0 0 6px rgba(0,0,0,0.15); }

form { max-width: 520px; margin: 0 auto; padding: 16px; border: 1px solid #ddd; background: #fff; }
label { display: block; margin: 10px 0 4px; }
input, select, textarea { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; }
button { margin-top: 12px; padding: 10px 14px; border: 1px solid #0a4a7a; background: #0a4a7a; color: #fff; border-radius: 4px; cursor: pointer; }
button:hover { background: #0d5e9a; }