*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: #080c18;
  color: #b8cfe0;
  line-height: 1.75;
  min-height: 100vh;
}

header {
  background: linear-gradient(180deg, #0c1830 0%, #070b18 100%);
  border-bottom: 1px solid #1a5080;
  padding: 32px 24px 28px;
  text-align: center;
}

.brand {
  color: #3ab8e8;
  font-size: 0.72em;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

header h1 {
  color: #ffffff;
  font-size: 1.25em;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.3;
  max-width: 580px;
  margin: 0 auto 14px;
  text-shadow: 0 0 24px rgba(58, 184, 232, 0.35);
}

.revision {
  display: inline-block;
  border: 1px solid rgba(58, 184, 232, .3);
  background: rgba(58, 184, 232, .07);
  color: #3ab8e8;
  font-size: 0.76em;
  padding: 4px 14px;
  border-radius: 2px;
  letter-spacing: 0.04em;
}

.container {
  max-width: 840px;
  margin: 0 auto;
  padding: 0 16px 56px;
}

.card {
  background: rgba(8, 16, 36, 0.92);
  border: 1px solid #1a4a72;
  border-top: none;
  border-radius: 0 0 4px 4px;
  box-shadow: 0 8px 48px rgba(0, 80, 180, 0.18), inset 0 0 60px rgba(0, 40, 100, 0.12);
  padding: 44px 48px;
}

h2 {
  font-size: 0.78em;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #3ab8e8;
  margin: 2.8em 0 0.9em;
  padding-bottom: 0.55em;
  border-bottom: 1px solid #1a4a72;
}

h2:first-of-type { margin-top: 0; }

p { margin-bottom: 0.9em; font-size: 0.95em; color: #a8c4d8; }

ul { list-style: none; padding: 0; margin-bottom: 1em; }

li {
  font-size: 0.95em;
  color: #a8c4d8;
  padding: 0.35em 0 0.35em 1.6em;
  position: relative;
}

li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.74em;
  width: 6px;
  height: 6px;
  background: #3ab8e8;
  transform: rotate(45deg);
}

strong { color: #e8f4ff; font-weight: 600; }

a {
  color: #3ab8e8;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(58, 184, 232, .4);
  transition: color .15s, text-decoration-color .15s;
}

a:hover {
  color: #80d8f8;
  text-decoration-color: #80d8f8;
}

.table-wrap {
  border: 1px solid #1a4a72;
  border-radius: 3px;
  overflow: hidden;
  margin: 1.2em 0;
}

table { width: 100%; border-collapse: collapse; font-size: 0.9em; }

thead th {
  background: #091828;
  color: #3ab8e8;
  padding: 10px 14px;
  text-align: left;
  font-size: 0.78em;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid #1a4a72;
}

tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid #0d1e34;
  color: #a8c4d8;
  vertical-align: top;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:nth-child(even) td { background: rgba(26, 74, 114, 0.12); }
tbody tr:hover td { background: rgba(58, 184, 232, 0.05); }

.footer {
  margin-top: 2.5em;
  padding-top: 1.8em;
  border-top: 1px solid #1a4a72;
  text-align: center;
  font-size: 0.88em;
  color: #4a6a88;
}

.footer strong { display: block; color: #a8c4d8; margin-bottom: 4px; }

@media (max-width: 640px) {
  .card { padding: 28px 18px; }
  header { padding: 24px 16px 20px; }
  header h1 { font-size: 1.05em; }
}