:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --text-dim: #555;
  --text-mute: #888;
  --border: #e7e7e7;
  --accent: #006dae;        /* Monash blue */
  --accent-dark: #005a8f;
  --maxw: 760px;
  --font-sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); text-decoration: underline; }

/* ---------- Nav ---------- */
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 32px 24px 8px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.brand img {
  height: 36px;
  display: block;
}

/* ---------- Hero ---------- */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 80px 24px 40px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 24px;
  color: var(--text);
}
.lede {
  max-width: 560px;
  margin: 0 auto 36px;
  font-size: 1.1rem;
  color: var(--text-dim);
}
.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 20px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn.primary {
  background: var(--accent);
  color: #fff;
}
.btn.primary:hover {
  background: var(--accent-dark);
  color: #fff;
  text-decoration: none;
}
.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn.ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* ---------- Sections ---------- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 48px 24px;
}
.section h2 {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
  color: var(--text);
}
.section p {
  margin: 0 0 16px;
  color: var(--text-dim);
}
.section p strong {
  color: var(--text);
  font-weight: 600;
}

/* ---------- Research areas ---------- */
.areas {
  list-style: none;
  padding: 0;
  margin: 0;
}
.areas li {
  padding: 18px 0;
  border-top: 1px solid var(--border);
}
.areas li:last-child { border-bottom: 1px solid var(--border); }
.areas h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.areas p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.97rem;
}

/* ---------- Join ---------- */
.join { text-align: center; padding-bottom: 80px; }
.join .cta-row { margin-top: 8px; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--border);
  margin-top: 20px;
}
.foot-row {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.foot-row p { margin: 0; font-size: 13px; color: var(--text-mute); }
.foot-row .muted { color: var(--text-mute); }

@media (max-width: 540px) {
  .foot-row { justify-content: center; text-align: center; }
}