:root{
  --bg:#f5f7fb;
  --card:#ffffff;
  --accent:#ff6b6b;
  --accent-2:#6366f1;
  --text:#0f172a;
  --muted:#64748b;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: 'Poppins', Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
.site-header{
  padding:0;
  text-align:center;
}
.site-header h1{margin:0;font-size:clamp(1.6rem,3vw,2.6rem)}
.tagline{color:var(--muted);margin-top:8px}
.hero{background:linear-gradient(135deg, rgba(255,107,107,0.12), rgba(99,102,241,0.06));padding:48px 18px 36px;border-bottom-left-radius:18px;border-bottom-right-radius:18px}
.hero-actions{margin-top:18px;display:flex;gap:12px;justify-content:center}
.btn{display:inline-block;padding:10px 16px;border-radius:10px;background:transparent;border:2px solid rgba(15,23,42,0.06);color:var(--text);text-decoration:none;font-weight:600;transition:transform .18s ease,box-shadow .18s ease}
.btn:hover{transform:translateY(-4px)}
.btn.rsvp{background:var(--accent);color:white;border-color:transparent;box-shadow:0 10px 30px rgba(255,107,107,0.12)}
.hero-divider{display:block;width:100%;height:64px;margin-top:-4px}
.content{max-width:920px;margin:26px auto;padding:0 18px}
.content section{background:var(--card);padding:20px;border-radius:12px;box-shadow:0 8px 28px rgba(12,18,28,0.06);margin-bottom:18px;transition:transform .22s ease,box-shadow .22s ease}
.content section:hover{transform:translateY(-6px);box-shadow:0 18px 38px rgba(12,18,28,0.08)}
.content h2{margin-top:0;color:#334155}
.big{font-size:1.3rem;font-weight:700;color:var(--accent);margin:6px 0}
.note{color:var(--muted);margin-top:6px}
.lessons ul{margin:8px 0 0 20px;color:var(--text)}
.call-to-action a{color:var(--accent);text-decoration:none}
.site-footer{text-align:center;padding:28px 8px;color:var(--muted);font-size:0.95rem}
@media (prefers-color-scheme:dark){
  :root{--bg:#071029;--card:#071b2b;--text:#e6eef7;--muted:#9fb4d8}
  .hero{background:linear-gradient(135deg, rgba(255,107,107,0.06), rgba(99,102,241,0.04));}
  .content section{box-shadow:0 6px 18px rgba(2,6,23,0.6)}
  .btn{border-color:rgba(255,255,255,0.06)}
}