:root {
  color-scheme: dark;
  --bg: #020713;
  --surface: rgba(255, 255, 255, 0.045);
  --line: rgba(255, 255, 255, 0.12);
  --text: rgba(246, 250, 255, 0.92);
  --muted: rgba(226, 238, 255, 0.62);
  --dim: rgba(226, 238, 255, 0.42);
  --blue: #36c7ff;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  min-height: 100svh;
  margin: 0;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 80% -10%, rgba(54, 199, 255, 0.22), transparent 30rem),
    radial-gradient(circle at 10% 32%, rgba(20, 90, 230, 0.16), transparent 34rem),
    linear-gradient(180deg, #071225 0%, #020713 58%, #070a12 100%);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.shell {
  width: min(880px, calc(100vw - 36px));
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 7rem) 0 4rem;
}

.topline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.9rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}

h1 {
  margin: clamp(3rem, 8vw, 5.5rem) 0 2rem;
  max-width: 10ch;
  font-family: "Roboto Condensed", "Arial Narrow", "PingFang SC", sans-serif;
  font-size: clamp(4.2rem, 12vw, 8rem);
  line-height: 0.86;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 span {
  color: var(--blue);
}

h2 {
  margin: 2.4rem 0 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
}

p,
li {
  color: var(--muted);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.85;
}

ul {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02) 52%, rgba(38,109,220,0.07));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06), 0 28px 84px rgba(0,0,0,0.22);
  padding: clamp(1.2rem, 4vw, 2rem);
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.links a {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.7rem 0.85rem;
  color: var(--muted);
  text-decoration: none;
}

.links a:hover,
.links a:focus-visible {
  border-color: rgba(54, 199, 255, 0.5);
  color: var(--blue);
  outline: none;
}