body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #071b2f 0%, #0f3b5c 45%, #0f172a 100%);
  color: #f8fbff;
  line-height: 1.75;
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 2rem 1.6rem 3.2rem;
}

h1, h2, h3 {
  color: #ffffff;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

h2 {
  margin-top: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.14);
  padding-bottom: 0.4rem;
}

p, li {
  font-size: 1.03rem;
}

img {
  border-radius: 16px;
  width: 100%;
  height: auto;
  display: block;
  margin: 1rem auto;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
}

figure img {
  max-width: 100%;
}

.callout-note,
div.callout-note {
  background: rgba(7, 27, 47, 0.95) !important;
  color: #f8fbff !important;
  border: 1px solid rgba(255,255,255,0.14) !important;
  border-left: 4px solid #4fd1c5 !important;
  padding: 1rem 1.15rem;
  margin: 1.6rem 0 0.4rem;
  border-radius: 0 14px 14px 0;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
}

.callout-note p,
div.callout-note p,
.callout-note li,
div.callout-note li {
  color: #f8fbff !important;
}

table,
.table,
.table thead th,
.table tbody td,
.table tbody tr {
  background: #0f2236 !important;
  color: #f8fbff !important;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  border-radius: 12px;
  overflow: hidden;
}

.table th,
.table td {
  padding: 0.85rem 0.95rem;
  border-bottom: 1px solid rgba(255,255,255,0.14);
  text-align: left;
  color: #f8fbff !important;
}

.table thead th {
  background: #14546d !important;
  font-weight: 700;
  color: #ffffff !important;
}

.table td:first-child {
  font-weight: 600;
}

iframe {
  background: #0f2236;
  border: 0;
  margin: 0.8rem auto 1.3rem;
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
  display: block;
  width: 100%;
  max-width: 100%;
  height: 520px;
  box-sizing: border-box;
}