:root {
  color-scheme: dark;
  --bg-top: #181818;
  --bg-bottom: #050505;
  --panel: rgba(30, 30, 30, 0.92);
  --panel-border: rgba(255, 255, 255, 0.1);
  --ink: #ffffff;
  --ink-muted: #c8c9ce;
  --accent: #ff7a22;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 8%, rgba(255, 106, 0, 0.18) 0%, transparent 40%),
    radial-gradient(circle at 85% 0%, rgba(255, 255, 255, 0.05) 0%, transparent 44%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

main {
  width: min(940px, 100% - 2rem);
  margin: 0 auto;
  padding: 1.25rem 0 2.5rem;
}

.panel {
  border: 1px solid var(--panel-border);
  background: var(--panel);
  border-radius: 16px;
  padding: 1rem 1.1rem;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.4);
}

.header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
}

.brand {
  margin: 0;
  font-size: 1.2rem;
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.nav a,
.back-home {
  color: var(--ink);
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 8px;
  padding: 0.36rem 0.58rem;
  font-size: 0.76rem;
  transition: border-color 120ms ease, color 120ms ease, background-color 120ms ease;
}

.nav a:hover,
.back-home:hover {
  border-color: var(--accent);
  color: #ffd7b8;
  background: rgba(255, 122, 34, 0.15);
}

.notice {
  font-size: 0.81rem;
  color: #ffcfab;
  border: 1px solid rgba(255, 122, 34, 0.5);
  background: rgba(255, 122, 34, 0.12);
  border-radius: 12px;
  padding: 0.75rem;
}

h1 {
  margin: 1rem 0 0.5rem;
  font-size: 1.35rem;
}

h2 {
  margin: 1.2rem 0 0.45rem;
  font-size: 1rem;
}

p,
li,
address {
  color: var(--ink-muted);
  font-size: 0.9rem;
  line-height: 1.56;
}

ul {
  margin: 0.4rem 0 0.8rem;
  padding-left: 1.2rem;
}

a {
  color: #ffd8b8;
}

a:hover {
  color: #fff0e3;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.5rem 0 1rem;
}

th,
td {
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.45rem;
  text-align: left;
  vertical-align: top;
  font-size: 0.84rem;
  color: var(--ink-muted);
}

th {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.footer {
  margin-top: 1.2rem;
  font-size: 0.75rem;
  color: #9f9f9f;
}

@media (max-width: 640px) {
  main {
    width: min(940px, 100% - 1rem);
    padding-top: 0.85rem;
  }

  .panel {
    padding: 0.9rem;
  }

  .brand {
    font-size: 1.1rem;
  }
}