:root {
  color-scheme: dark;
  --bg: #060913;
  --panel: rgba(13, 20, 35, 0.75);
  --line: rgba(141, 189, 255, 0.12);
  --text: #e2ebf5;
  --muted: #8da2bb;
  --accent: #00f5a0;
  --limewash: #00d2ff;
  --warning: #ffbe55;
}

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 0%, rgba(0, 245, 160, 0.12), transparent 40rem),
    radial-gradient(circle at 85% 30%, rgba(0, 210, 255, 0.08), transparent 35rem),
    linear-gradient(180deg, #060913 0%, #0b132b 50%, #060913 100%);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  letter-spacing: -0.011em;
}

.page {
  width: min(840px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 40px 0 64px;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 900;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text) 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.back {
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 8px 16px;
  font-family: monospace;
  font-size: 0.75rem;
  font-weight: bold;
  background: rgba(255, 255, 255, 0.02);
  transition: all 0.2s ease;
}

.back:hover {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(0, 245, 160, 0.08);
  transform: translateY(-1px);
}

main {
  display: grid;
  gap: 20px;
  padding-top: 32px;
}

h1 {
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  font-weight: 900;
  line-height: 1.05;
  margin: 0 0 8px;
  letter-spacing: -0.03em;
  background: linear-gradient(to right, #ffffff, var(--muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: 1.1rem;
  font-weight: 800;
  margin: 0 0 10px;
  color: var(--text);
  letter-spacing: -0.015em;
}

p, li {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

p {
  margin: 0;
}

ul {
  margin: 0;
  padding-left: 20px;
}

li {
  margin-bottom: 8px;
}

li::marker {
  color: var(--accent);
}

section {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 20px;
  padding: 24px;
  backdrop-filter: blur(12px);
  transition: border-color 0.3s ease;
}

section:hover {
  border-color: rgba(141, 189, 255, 0.22);
}

.notice {
  border-color: rgba(255, 190, 85, 0.25);
  background: rgba(255, 190, 85, 0.04);
}

.notice strong {
  color: var(--warning);
}

.meta {
  color: var(--muted);
  font-family: monospace;
  font-size: 0.75rem;
  margin-bottom: 12px;
  opacity: 0.85;
}

a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--limewash);
  text-decoration: underline;
}

.inline-action {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: bold;
  transition: all 0.2s ease;
}

.inline-action:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0, 245, 160, 0.05);
}

footer {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
  opacity: 0.8;
}