:root {
  --bg: #0b1628;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --teal: #2dd4bf;
  --border: rgba(148, 163, 184, 0.22);
  --avatar-bg: rgba(45, 212, 191, 0.1);
  --font: "IBM Plex Sans", system-ui, sans-serif;
  --serif: "IBM Plex Serif", Georgia, serif;
}

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

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(700px 360px at 70% 0%, rgba(45, 212, 191, 0.08), transparent 55%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

.sheet {
  width: min(100%, 36rem);
  text-align: center;
}

.wordmark {
  margin: 0 0 2.5rem;
  font-family: var(--serif);
  font-size: clamp(2.25rem, 6vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
}

.arms {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem 0.5rem;
  align-items: start;
  max-width: 28rem;
}

.arm {
  min-width: 0;
}

.arm-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.55rem;
  padding: 0.35rem 0.4rem;
  color: inherit;
  text-decoration: none;
  border-radius: 0.75rem;
  transition: background 0.15s ease;
}

a.arm-card:hover {
  background: rgba(255, 255, 255, 0.03);
}

a.arm-card:hover .avatar {
  border-color: rgba(45, 212, 191, 0.55);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.12);
}

a.arm-card:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.arm-card.is-pending {
  cursor: default;
}

.avatar {
  display: grid;
  place-items: center;
  width: 4.25rem;
  height: 4.25rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--avatar-bg);
  color: var(--teal);
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}

.arm-name {
  margin: 0.15rem 0 0;
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.arm-meta {
  margin: 0;
  color: #64748b;
  font-size: 0.8rem;
  font-weight: 500;
}

a.arm-card .arm-meta {
  color: var(--teal);
}

.foot {
  margin: 2.5rem 0 0;
  color: #64748b;
  font-size: 0.8rem;
}

@media (max-width: 480px) {
  .arms {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}