:root {
  --bg: #0b1020;
  --card: #121a32;
  --text: #eaf0ff;
  --muted: #a9b5d6;
  --line: #2a355a;
  --brand: #8ed0ff;
  --accent: #8ff7c1;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: radial-gradient(1200px 800px at 10% -10%, #1a2852 0%, var(--bg) 50%);
  color: var(--text);
  font-family: "Segoe UI", "Inter", system-ui, sans-serif;
  line-height: 1.6;
}

a {
  color: var(--brand);
}

.container {
  width: min(980px, 92vw);
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.logo {
  font-weight: 800;
  letter-spacing: 0.3px;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: contain;
  border: 1px solid var(--line);
  background: #ffffff;
}

.logo .accent {
  color: var(--brand);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.nav a {
  text-decoration: none;
  border: 1px solid var(--line);
  color: var(--text);
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  font-size: 0.9rem;
}

.hero {
  background: linear-gradient(155deg, #17254e, #101a35);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.35rem, 1.8vw, 2rem);
}

.hero p {
  margin: 0.75rem 0 0;
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

h2 {
  margin-top: 0;
  font-size: 1.15rem;
}

h3 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
}

ul {
  padding-left: 1.15rem;
}

.footer {
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.notice {
  border-left: 4px solid var(--accent);
  padding: 0.8rem 1rem;
  background: rgba(143, 247, 193, 0.08);
  border-radius: 10px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.table th,
.table td {
  border: 1px solid var(--line);
  padding: 0.6rem;
  vertical-align: top;
}

.table th {
  text-align: left;
  background: #182447;
}

@media (max-width: 720px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
}