:root {
  --ink: #132029;
  --muted: #5b6b76;
  --paper: #eef3f1;
  --panel: rgba(255, 252, 247, 0.88);
  --line: #c9d5cf;
  --teal: #0c5c5c;
  --teal-deep: #083e40;
  --amber: #9a5b12;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(900px 420px at 12% -8%, rgba(12, 92, 92, 0.18), transparent 55%),
    radial-gradient(700px 380px at 95% 8%, rgba(154, 91, 18, 0.12), transparent 50%),
    linear-gradient(165deg, #d9e4df 0%, var(--paper) 45%, #e7ebe4 100%);
}

.hub {
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(40px, 8vh, 88px) 22px 48px;
}

.hero {
  margin-bottom: 36px;
  max-width: 34rem;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--teal);
}

h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 4.6rem);
  line-height: 0.95;
  color: var(--teal-deep);
}

.lede {
  margin: 16px 0 0;
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 28rem;
}

.choices {
  display: grid;
  gap: 12px;
}

.choice {
  display: grid;
  gap: 4px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  text-decoration: none;
  color: inherit;
  backdrop-filter: blur(6px);
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.choice:hover {
  transform: translateY(-2px);
  border-color: var(--teal);
  background: #fff;
}

.choice-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--teal);
}

.choice-title {
  font-family: var(--font-display);
  font-size: 1.55rem;
  color: var(--teal-deep);
}

.choice-desc {
  color: var(--muted);
  font-size: 0.98rem;
}

.choice-chat .choice-kicker { color: var(--amber); }

.hub-alt {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.hub-alt a {
  color: var(--teal);
  font-weight: 600;
  text-decoration: none;
}

.hub-alt a:hover {
  text-decoration: underline;
}

.hub-foot {
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.88rem;
}

.hub-foot code {
  font-size: 0.86rem;
}

@media (min-width: 860px) {
  .choices {
    grid-template-columns: 1fr 1fr;
  }
}