:root{
  --navy:#0b2a4a; --blue:#1f5c99; --gold:#c9a227;
  --bg:#f4f6f9; --card:#fff; --ink:#1d2733; --muted:#5c6b7a; --line:#e2e8f0;
  --ok:#2e8b57; --err:#c0392b;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.55}
a{color:var(--blue)}
main{max-width:920px;margin:0 auto;padding:24px 16px 50px}
h1{font-size:1.6rem;margin:.2em 0 .4em}
h2{font-size:1.15rem}
.muted{color:var(--muted)}
.small{font-size:.82rem}

/* Topbar */
.topbar{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:12px 18px}
.brand{font-weight:800;font-size:1.25rem;color:#fff;text-decoration:none;letter-spacing:.02em}
.brand span{color:var(--gold)}
.topbar nav{display:flex;flex-wrap:wrap;gap:4px;align-items:center}
.topbar nav a{color:#fff;text-decoration:none;padding:7px 11px;border-radius:8px;font-size:.9rem;opacity:.9}
.topbar nav a:hover{background:rgba(255,255,255,.12);opacity:1}
.topbar nav a.on{background:rgba(255,255,255,.18);opacity:1}
.topbar nav a.cta{background:var(--gold);color:var(--navy);font-weight:700;opacity:1}
.topbar nav a.ghost{border:1px solid rgba(255,255,255,.4)}

.flash{background:#eaf7ef;border:1px solid #b8e0c8;color:#1d6b3f;padding:11px 14px;border-radius:10px;margin-bottom:16px}
.warn{background:#fff6e0;border:1px solid #f0e1b0;color:#6b5d1a;padding:11px 14px;border-radius:10px;margin-bottom:16px}
.warn a{color:#8a6d0e;font-weight:600}
.error{background:#fdecec;border:1px solid #f1c6c6;color:var(--err);padding:9px 12px;border-radius:9px;margin-bottom:8px}

/* Hero */
.hero{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:34px 26px;margin-bottom:22px;
  box-shadow:0 6px 20px rgba(11,42,74,.06)}
.hero .kicker{text-transform:uppercase;letter-spacing:.12em;font-size:.78rem;color:var(--muted);margin:0 0 6px}
.hero h1{font-size:2rem;margin:0 0 10px}
.hero h1 span{color:var(--gold)}
.hero .lead{font-size:1.05rem;color:var(--muted);max-width:620px}
.hero-cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.btn{display:inline-block;background:var(--navy);color:#fff;text-decoration:none;padding:11px 18px;border-radius:10px;font-weight:600}
.btn.ghost{background:transparent;color:var(--navy);border:1px solid var(--navy)}

/* Card grid */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:14px 0}
.feat,.class-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;text-decoration:none;color:var(--ink);
  transition:transform .08s,box-shadow .08s;display:block}
.feat:hover,.class-card:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(11,42,74,.10)}
.feat h3,.class-card h3{margin:0 0 6px}
.feat p{margin:0;color:var(--muted);font-size:.92rem}
.badge{display:inline-block;background:var(--gold);color:var(--navy);font-size:.72rem;font-weight:700;
  padding:2px 8px;border-radius:999px;margin-top:8px}

/* Panels & forms */
.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin:0 0 16px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:640px){.two-col{grid-template-columns:1fr}}
label{display:block;margin:0 0 12px;font-weight:600;font-size:.9rem}
input,textarea,select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:1rem;
  font-family:inherit;margin-top:5px;background:#fff;color:var(--ink)}
textarea{resize:vertical}
button{background:var(--navy);color:#fff;border:0;padding:11px 18px;border-radius:10px;font-size:.95rem;font-weight:600;cursor:pointer}
button:hover{background:var(--blue)}
label.check{display:flex;gap:9px;align-items:flex-start;font-weight:400}
label.check input{width:auto;margin-top:3px}

.auth-card{max-width:420px;margin:10px auto;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px}

/* Classe */
.class-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}
.back{font-size:.85rem;text-decoration:none}
.invite{background:#fff6e0;border:1px solid #f0e1b0;border-radius:12px;padding:10px 16px;text-align:center;font-size:.8rem;color:#6b5d1a}
.invite strong{font-size:1.2rem;letter-spacing:.15em;color:var(--navy)}
.tabs{display:flex;gap:6px;margin:16px 0;flex-wrap:wrap}
.tabs a{text-decoration:none;padding:8px 14px;border-radius:999px;background:var(--card);border:1px solid var(--line);color:var(--muted);font-size:.9rem}
.tabs a.on{background:var(--navy);color:#fff;border-color:var(--navy)}

.post-box{display:flex;gap:8px;align-items:flex-end;margin-bottom:16px}
.post-box textarea{margin:0}
.post-box button{white-space:nowrap}
.msg{display:flex;gap:11px;padding:11px 0;border-top:1px solid var(--line)}
.avatar{flex:0 0 38px;height:38px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem}
.avatar.sm{flex-basis:30px;height:30px;font-size:.75rem}
.msg-head{font-size:.9rem}
.msg-body{margin-top:2px}

/* Eventi */
.event{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line)}
.event-date{flex:0 0 56px;text-align:center;background:var(--bg);border-radius:10px;padding:8px 0;height:fit-content}
.event-date .d{display:block;font-size:1.4rem;font-weight:800;color:var(--navy);line-height:1}
.event-date .m{font-size:.7rem;color:var(--muted);letter-spacing:.06em}
.event-body{flex:1}
.event-body h3{margin:0 0 3px}
.rsvp{display:flex;gap:12px;align-items:center;margin-top:8px;flex-wrap:wrap}
.rsvp-form{display:flex;gap:6px}
.rsvp-form button{background:var(--card);color:var(--muted);border:1px solid var(--line);padding:6px 12px;font-size:.82rem}
.rsvp-form button.on{background:var(--ok);color:#fff;border-color:var(--ok)}
.new-event{margin-top:16px;border:1px dashed var(--line);border-radius:12px;padding:6px 14px}
.new-event summary{cursor:pointer;font-weight:600;padding:8px 0;color:var(--blue)}

.members{list-style:none;padding:0;margin:0}
.members li{display:flex;align-items:center;gap:10px;padding:9px 0;border-top:1px solid var(--line)}
.members li:first-child{border-top:0}

/* FAQ / news / prose */
.faq details,.new-event{margin-bottom:10px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:4px 16px}
.faq summary{cursor:pointer;font-weight:600;padding:12px 0}
.news-item{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:12px}
.news-item h3{margin:4px 0}
.prose h2{margin-top:22px}

.ics-link{font-size:.85rem;text-decoration:none}
.danger-zone{margin-top:24px;border:1px solid #f1c6c6;border-radius:12px;padding:6px 16px;background:#fffafa}
.danger-zone summary{cursor:pointer;font-weight:600;color:var(--err);padding:10px 0}
.btn-danger{background:var(--err)}
.btn-danger:hover{background:#a32c20}

.sitefoot{max-width:920px;margin:0 auto;padding:20px 16px 40px;color:var(--muted);font-size:.82rem;border-top:1px solid var(--line)}
.sitefoot p{margin:4px 0}