* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  background: #0b1224;
  color: #e2e8f0;
  min-height: 100vh;
}

.shell {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 20px 72px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.brand {
  font-size: 20px;
  font-weight: 700;
  color: #f8fafc;
  letter-spacing: 0.2px;
}

.nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.nav a,
.back-link {
  color: #7aa2ff;
  text-decoration: none;
  font-weight: 600;
  font-size: 13px;
}

.panel {
  background: #121b32;
  border: 1px solid #1f2a44;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 18px 40px rgba(5, 8, 20, 0.3);
}

.title {
  font-size: 26px;
  margin: 0 0 12px;
  color: #f8fafc;
}

.meta {
  font-size: 13px;
  color: #94a3b8;
  margin-bottom: 18px;
}

.content h1,
.content h2,
.content h3,
.content h4 {
  color: #f8fafc;
  margin-top: 22px;
}

.content p {
  line-height: 1.6;
  color: #e2e8f0;
}

.content a {
  color: #7aa2ff;
}

.content ul,
.content ol {
  padding-left: 20px;
}

.loading {
  color: #7aa2ff;
  font-weight: 600;
}

.error {
  color: #f87171;
  font-weight: 600;
}

.footer {
  margin-top: 28px;
  font-size: 12px;
  color: #64748b;
  text-align: center;
}