:root {
  --bg: #050B07;
  --bg-mid: #0B1A12;
  --neon: #3CFF8B;
  --neon-deep: #14B86A;
  --text: #FFFFFF;
  --text-mute: rgba(255, 255, 255, 0.7);
  --text-faint: rgba(255, 255, 255, 0.45);
  --border: rgba(60, 255, 139, 0.25);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans",
    "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  min-height: 100vh;
  background-image:
    radial-gradient(circle at 20% -10%, rgba(60, 255, 139, 0.12), transparent 50%),
    radial-gradient(circle at 80% 110%, rgba(20, 184, 106, 0.08), transparent 50%);
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

header {
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1.5px solid var(--neon);
  background: linear-gradient(135deg, rgba(60, 255, 139, 0.15), transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.brand-name {
  font-size: 28px;
  font-weight: 900;
  letter-spacing: 3px;
  background: linear-gradient(90deg, var(--neon), var(--neon-deep));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tag {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--neon);
  margin-left: 8px;
  padding: 2px 8px;
  border: 1px solid rgba(60, 255, 139, 0.5);
  border-radius: 12px;
}

nav {
  margin-top: 16px;
  display: flex;
  gap: 16px;
  font-size: 13px;
}

nav a {
  color: var(--text-mute);
  text-decoration: none;
  transition: color 0.15s;
}

nav a:hover,
nav a.active {
  color: var(--neon);
}

h1 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1.4;
}

h2 {
  font-size: 18px;
  font-weight: 700;
  margin-top: 36px;
  margin-bottom: 12px;
  color: var(--neon);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

h3 {
  font-size: 15px;
  font-weight: 700;
  margin-top: 20px;
  margin-bottom: 8px;
  color: var(--text);
}

p {
  color: var(--text-mute);
  margin-bottom: 14px;
}

ul, ol {
  color: var(--text-mute);
  padding-left: 24px;
  margin-bottom: 16px;
}

li {
  margin-bottom: 6px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
  background: var(--bg-mid);
  border-radius: 12px;
  overflow: hidden;
}

th, td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

th {
  background: rgba(60, 255, 139, 0.08);
  color: var(--neon);
  font-weight: 700;
}

td {
  color: var(--text-mute);
}

tr:last-child td {
  border-bottom: none;
}

.updated {
  display: inline-block;
  font-size: 12px;
  color: var(--text-faint);
  margin-bottom: 32px;
}

.note {
  background: var(--bg-mid);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin: 24px 0;
  font-size: 14px;
  color: var(--text-mute);
}

a.inline {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px dashed rgba(60, 255, 139, 0.5);
}

a.inline:hover {
  border-bottom-style: solid;
}

footer {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 12px;
  color: var(--text-faint);
}

footer a {
  color: var(--text-mute);
  text-decoration: none;
}

footer a:hover {
  color: var(--neon);
}

@media (max-width: 600px) {
  .container { padding: 20px 18px 60px; }
  h1 { font-size: 22px; }
  .brand-name { font-size: 22px; }
  .brand-tag { display: none; }
  table { font-size: 12.5px; }
  th, td { padding: 10px 10px; }
}