/* ============================================================
   Bussola AI — Design System (foglio di stile condiviso)
   Colori, font e componenti riutilizzati da tutte le pagine.
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,600;0,8..60,700;1,8..60,400&family=Hanken+Grotesk:wght@400;500;600;700&display=swap');

:root{
  --bg:#FFFFFF;
  --ink:#0F172A;
  --muted:#475569;
  --hint:#64748B;
  --blue:#2E7DF6;
  --blue-deep:#0B3D91;
  --tint:#EAF2FF;
  --line:#E7ECF3;
  --gold:#E0A93B;
  --serif:'Source Serif 4', Georgia, serif;
  --sans:'Hanken Grotesk', Arial, sans-serif;
  --wrap:1120px;
  --read:720px;
  --radius:12px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--serif);
  font-size:18px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.read{max-width:var(--read);margin:0 auto;padding:0 24px}

/* ---------- Navbar (scura, per il logo) ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:#08111f;
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.nav-in{display:flex;align-items:center;gap:20px;height:70px}
.brand{display:flex;align-items:center;gap:8px;font-family:var(--serif);font-weight:700;font-size:22px;color:#fff}
.brand .rose{height:40px;width:auto;flex:none}
.nav-links{display:flex;gap:26px;margin-left:auto;font-family:var(--sans);font-weight:500;font-size:15px}
.nav-links a{color:rgba(255,255,255,0.72);padding:6px 0;border-bottom:2px solid transparent}
.nav-links a:hover{color:#fff}
.nav-links a.active{color:#fff;border-bottom-color:var(--blue)}
.nav-cta{font-family:var(--sans);font-weight:600;font-size:14px;background:var(--blue);color:#fff;padding:9px 16px;border-radius:8px}
.nav-cta:hover{background:#1f66d6}
.nav-lock{display:flex;align-items:center;gap:6px;font-family:var(--sans);font-size:13px;color:rgba(255,255,255,0.72);padding:8px 12px;border:1px solid rgba(255,255,255,0.22);border-radius:8px}
.nav-lock:hover{border-color:var(--blue);color:#fff}
.nav-lock svg{width:15px;height:15px}

/* ---------- Tipografia ---------- */
h1,h2,h3{font-family:var(--serif);font-weight:700;line-height:1.2;color:var(--ink)}
.kicker{font-family:var(--sans);font-weight:600;font-size:13px;letter-spacing:.4px;color:var(--blue);text-transform:uppercase}
.lead{font-size:20px;color:var(--muted);font-style:italic}
.sans{font-family:var(--sans)}

/* ---------- Hero ---------- */
.hero{padding:64px 0 36px}
.hero h1{font-size:clamp(34px,5vw,54px);letter-spacing:-.5px}
.hero .lead{margin:18px 0 26px;max-width:640px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.hero-figure{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10}
.hero-figure img{width:100%;height:100%;object-fit:cover}

/* ---------- Form iscrizione ---------- */
.subscribe{display:flex;gap:10px;max-width:460px;font-family:var(--sans)}
.subscribe input{flex:1;height:48px;border:1px solid var(--line);border-radius:10px;padding:0 14px;font-size:15px;font-family:var(--sans)}
.subscribe input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--tint)}
.subscribe button{height:48px;padding:0 22px;border:none;border-radius:10px;background:var(--blue);color:#fff;font-weight:600;font-size:15px;cursor:pointer}
.subscribe button:hover{background:#1f66d6}
.subnote{font-family:var(--sans);font-size:13px;color:var(--hint);margin-top:10px}

/* ---------- Sezioni ---------- */
.section{padding:52px 0;border-top:1px solid var(--line)}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:26px;flex-wrap:wrap;gap:10px}
.section-head h2{font-size:28px}
.section-head a{font-family:var(--sans);font-weight:600;font-size:14px;color:var(--blue)}

/* ---------- Griglia articoli ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:28px}
.card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:transform .15s ease,box-shadow .15s ease}
.card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(15,23,42,.08)}
.card-cover{aspect-ratio:16/9;overflow:hidden;background:var(--tint)}
.card-cover img{width:100%;height:100%;object-fit:cover}
.card-body{padding:18px 20px 22px}
.card-meta{font-family:var(--sans);font-size:12.5px;color:var(--hint);display:flex;gap:10px;align-items:center;margin-bottom:8px}
.tag{font-family:var(--sans);font-weight:600;font-size:11.5px;color:var(--blue-deep);background:var(--tint);padding:3px 10px;border-radius:20px}
.card h3{font-size:20px;line-height:1.25;margin-bottom:8px}
.card p{font-size:15.5px;color:var(--muted);line-height:1.6}

/* ---------- Banda formazioni ---------- */
.band{background:var(--blue-deep);color:#fff;border-radius:16px;padding:40px;display:grid;grid-template-columns:1.3fr .7fr;gap:24px;align-items:center}
.band h2{color:#fff;font-size:30px}
.band p{color:#cfe0fb;margin-top:10px;font-size:17px}
.band .btn-gold{display:inline-block;margin-top:18px;font-family:var(--sans);font-weight:600;background:var(--gold);color:#4a2e05;padding:12px 22px;border-radius:10px}

/* ---------- Filtri archivio ---------- */
.filters{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:30px}
.filters input{height:44px;min-width:240px;flex:1;border:1px solid var(--line);border-radius:10px;padding:0 14px;font-family:var(--sans);font-size:15px}
.filters input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--tint)}
.chip{font-family:var(--sans);font-weight:500;font-size:14px;color:var(--muted);background:#fff;border:1px solid var(--line);padding:9px 16px;border-radius:20px;cursor:pointer}
.chip:hover{border-color:var(--blue)}
.chip.active{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ---------- Formazioni cards ---------- */
.course{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.course-cover{aspect-ratio:16/9;overflow:hidden}
.course-cover img{width:100%;height:100%;object-fit:cover}
.course-body{padding:20px;display:flex;flex-direction:column;flex:1}
.badge{font-family:var(--sans);font-weight:700;font-size:11.5px;padding:4px 11px;border-radius:20px;align-self:flex-start;margin-bottom:10px}
.badge.free{background:#e6f7ee;color:#0f7a4d}
.badge.paid{background:var(--tint);color:var(--blue-deep)}
.course h3{font-size:21px;margin-bottom:8px}
.course p{font-size:15px;color:var(--muted);flex:1}
.course-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-family:var(--sans)}
.price{font-weight:700;font-size:18px;color:var(--ink)}
.price small{font-weight:500;color:var(--hint)}
.btn{display:inline-block;font-family:var(--sans);font-weight:600;font-size:14px;background:var(--blue);color:#fff;padding:10px 18px;border-radius:9px;cursor:pointer;border:none}
.btn:hover{background:#1f66d6}
.btn.ghost{background:#fff;color:var(--blue-deep);border:1px solid var(--line)}
.btn.ghost:hover{border-color:var(--blue)}

/* ---------- Dashboard ---------- */
.dash-head{background:var(--tint);border-bottom:1px solid var(--line);padding:22px 0}
.dash-head .wrap{display:flex;align-items:center;gap:12px}
.dash-tag{font-family:var(--sans);font-weight:600;font-size:12px;color:var(--blue-deep);background:#fff;border:1px solid var(--line);padding:5px 12px;border-radius:20px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px;margin:30px 0}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.stat .n{font-family:var(--serif);font-weight:700;font-size:32px;color:var(--blue-deep)}
.stat .l{font-family:var(--sans);font-size:13.5px;color:var(--hint);margin-top:4px}
.stat .up{font-family:var(--sans);font-size:12.5px;color:#0f7a4d;margin-top:6px}
.panel{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:26px}
.panel-h{font-family:var(--sans);font-weight:600;font-size:15px;padding:16px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}
table{width:100%;border-collapse:collapse;font-family:var(--sans);font-size:14.5px}
th,td{text-align:left;padding:13px 20px;border-bottom:1px solid var(--line)}
th{font-size:12.5px;text-transform:uppercase;letter-spacing:.3px;color:var(--hint);font-weight:600}
tr:last-child td{border-bottom:none}
.pill{font-family:var(--sans);font-weight:600;font-size:11.5px;padding:3px 10px;border-radius:20px}
.pill.pub{background:#e6f7ee;color:#0f7a4d}
.pill.draft{background:#fef3e2;color:#a9660b}
.pill.prog{background:var(--tint);color:var(--blue-deep)}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--line);padding:40px 0;margin-top:20px;font-family:var(--sans);color:var(--hint);font-size:14px}
.footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;align-items:center}

/* ---------- Pagina articolo ---------- */
.article{padding:34px 0 10px}
.back{font-family:var(--sans);font-size:14px;color:var(--blue);display:inline-block;margin-bottom:18px}
.article h1{font-size:clamp(30px,4.5vw,44px);line-height:1.16;margin:6px 0 12px}
.article-meta{font-family:var(--sans);font-size:13.5px;color:var(--hint);display:flex;gap:10px;align-items:center;margin-bottom:8px}
.article-cover{aspect-ratio:16/9;border-radius:12px;overflow:hidden;margin:22px 0 30px;border:1px solid var(--line)}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-body{font-size:19px;line-height:1.8}
.article-body p{margin:0 0 20px}
.article-body h2{font-size:25px;margin:34px 0 12px}
.article-body ul{margin:0 0 20px 22px}
.article-body li{margin:0 0 10px}
.article-body em{color:var(--muted)}
.end-cta{background:var(--tint);border-radius:12px;padding:30px;margin:40px 0 10px;text-align:center}
.end-cta h3{font-size:23px;margin-bottom:8px}
.end-cta p{font-family:var(--sans);font-size:15px;color:var(--muted);margin-bottom:18px}
.end-cta .subscribe{margin:0 auto}

/* ---------- Responsive ---------- */
@media(max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:26px}
  .band{grid-template-columns:1fr;text-align:left}
  .nav-links{display:none}
  body{font-size:17px}
}
@media(max-width:520px){
  .subscribe{flex-direction:column}
  .subscribe button{width:100%}
  .nav-cta{display:none}
}