:root {
  --bg: #0b0d10;
  --fg: #eef1f4;
  --muted: #8b949e;
  --line: #2a3138;
  --card: #14181d;
  --hover: #1b2127;
  --accent: #6aa8b5;
  --err: #d07264;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.45;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
  background: var(--bg);
  color: var(--fg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.25rem;
}

main { width: min(22.5rem, 100%); }

header { margin-bottom: 1.75rem; }

h1 {
  font-size: 1.35rem;
  font-weight: 650;
  letter-spacing: -0.03em;
  margin: 0 0 0.25rem;
}

.lead {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 400;
}

nav { display: grid; gap: 0.55rem; }

a.card {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  padding: 0.85rem 0.95rem;
}

a.card:hover,
a.card:focus-visible {
  background: var(--hover);
  border-color: #3d4a52;
  outline: none;
}

.card .name {
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.card .desc {
  margin: 0 0 0 auto;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 400;
}

.card .go {
  color: var(--muted);
  font-size: 0.95rem;
}

a.card:hover .go { color: var(--accent); }

.out {
  margin: 1.5rem 0 0;
}

.out a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.86rem;
}

.out a:hover { color: var(--fg); }

label {
  display: block;
  margin: 0 0 0.85rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
}

input {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.62rem 0.7rem;
  font: inherit;
  font-size: 0.95rem;
  color: var(--fg);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
}

input:focus {
  outline: none;
  border-color: var(--accent);
}

button {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.68rem 1rem;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: #0b0d10;
  background: var(--accent);
  border: 0;
  border-radius: 0.5rem;
  cursor: pointer;
}

button:hover { filter: brightness(1.06); }

.err {
  margin: 0 0 1rem;
  color: var(--err);
  font-size: 0.88rem;
}

.hidden { display: none; }