body {
  margin: 0;
  padding: 0;
  background: #0a1a3a;
  color: #e0e0ff;
  font-family: Tahoma, Arial, Helvetica, sans-serif;
  font-size: 13px;
  line-height: 1.5;
}

a {
  color: #66aaff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrapper {
  width: min(980px, calc(100% - 32px));
  margin: 16px auto;
  background: linear-gradient(to bottom, #0f254a, #0a1a3a);
  border: 1px solid #336;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
  border-radius: 6px;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  grid-template-areas:
    "header header"
    "leftnav content"
    "footer footer";
}

.header {
  grid-area: header;
  min-height: 140px;
  background: linear-gradient(to bottom, #1a3a6e, #0a1a3a);
  background-image: url('/static/img/header.jpg')
    , linear-gradient(to bottom, #1a3a6e, #0a1a3a);
  background-size: cover, 100% 100%;
  background-position: center center, center center;
  background-repeat: no-repeat, no-repeat;
  border-bottom: 4px solid #c00000;
  text-align: center;
  padding: 20px 16px;
  color: #ffcc00;
  font-size: 42px;
  font-weight: bold;
  text-shadow: 2px 2px 6px #000;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 8px;
  border-radius: 6px 6px 0 0;
  box-shadow: inset 0 -3px 10px rgba(255,255,255,0.1);
}

.header small {
  display: block;
  font-size: 18px;
  color: #aaccff;
  text-shadow: 1px 1px 2px #000;
}

.leftnav {
  grid-area: leftnav;
  background: linear-gradient(to bottom, #0d1f3d, #112b55);
  border-right: 2px solid #224488;
  min-height: 0;
  padding: 10px 0;
  box-shadow: inset -2px 0 5px rgba(255,255,255,0.05);
}

.leftnav h3 {
  margin: 0;
  padding: 8px 15px;
  background: linear-gradient(to bottom, #ff3333, #c00000);
  color: white;
  font-size: 14px;
  border-bottom: 1px solid #880000;
  text-transform: uppercase;
  text-shadow: 1px 1px 2px #440000;
  border-radius: 4px 4px 0 0;
}

.leftnav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.leftnav li a,
.leftnav li .leftnav-link-button {
  display: block;
  width: 100%;
  box-sizing: border-box;
  padding: 10px 20px;
  color: #aaccff;
  text-decoration: none;
  border-bottom: 1px solid #224488;
  transition: all 0.2s ease;
  text-align: left;
  font: inherit;
  background: none;
  border-left: none;
  border-right: none;
  border-top: none;
  cursor: pointer;
}

.leftnav li .leftnav-form {
  margin: 0;
}

.leftnav li a:hover,
.leftnav li .leftnav-link-button:hover {
  background: linear-gradient(to right, #1a3a6e, #224488);
  color: #ffff99;
  box-shadow: inset 0 0 5px rgba(255,255,255,0.2);
}

.content {
  grid-area: content;
  padding: 20px 30px;
  min-height: 0;
  background: linear-gradient(to bottom, #112b55, #0a1a3a);
  box-shadow: inset 0 0 10px rgba(255,255,255,0.05);
  border-radius: 0 6px 6px 0;
}

.content h1, .content h2 {
  color: #ffcc00;
  margin-top: 0;
  text-shadow: 1px 1px 2px #000;
}

.content h2 {
  border-bottom: 2px solid #336699;
  padding-bottom: 6px;
}

.footer {
  grid-area: footer;
  background: linear-gradient(to top, #0a1a3a, #112b55);
  color: #8899cc;
  text-align: center;
  padding: 12px;
  font-size: 11px;
  border-top: 2px solid #224488;
  text-shadow: 0 1px 2px #000;
  box-shadow: inset 0 3px 5px rgba(255,255,255,0.05);
  border-radius: 0 0 6px 6px;
}

.button {
  display: inline-block;
  padding: 6px 12px;
  background: linear-gradient(to bottom, #ff5555, #c00000);
  color: white;
  text-decoration: none;
  border: 1px solid #880000;
  margin: 4px;
  border-radius: 4px;
  text-shadow: 1px 1px 2px #550000;
  transition: all 0.2s ease;
}

.button:hover {
  background: linear-gradient(to bottom, #ff3300, #ff6600);
  box-shadow: 0 0 10px rgba(255,165,0,0.5);
}