:root {
  --navy: #1f2b47; --navy2: #172136; --gold: #c9992e; --gold-d: #a3721a;
  --ink: #1c2333; --grey: #555e6f; --light: #f6f8fb; --line: #e2e7f0;
  --green: #2e7d4f; --red: #b23c3c; --blue: #2b5f8f;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: Georgia, "Times New Roman", serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--sans); color: var(--ink); line-height: 1.6; background: #fff; }
img { max-width: 100%; }
a { color: var(--gold-d); }
.container { max-width: 1080px; margin: 0 auto; padding: 0 22px; }
section { padding: 72px 0; }
.kicker { font-size: 12px; letter-spacing: 3.5px; color: #8b93a3; text-transform: uppercase; font-weight: 600; }
h2.title { font-size: 32px; color: var(--navy); margin: 6px 0 4px 0; line-height: 1.15; }
.rule { width: 54px; border-bottom: 3.5px solid var(--gold); margin: 12px 0 22px 0; }
.center { text-align: center; }
.center .rule { margin-left: auto; margin-right: auto; }
.lead { color: var(--grey); font-size: 17px; max-width: 640px; }
.center .lead { margin: 0 auto; }
.btn { display: inline-block; padding: 13px 26px; border-radius: 8px; font-weight: 700; text-decoration: none; font-size: 15px; cursor: pointer; border: 0; transition: transform .15s ease, box-shadow .15s ease; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(31,43,71,.22); }
.btn-gold { background: var(--gold); color: var(--navy2); }
.btn-ghost { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.4); }
.btn-navy { background: var(--navy); color: #fff; }

/* honeypot antispam: invisibile agli umani */
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; opacity: 0; }

/* flash */
.flash { margin: 14px 0 0 0; padding: 12px 16px; border-radius: 8px; font-weight: 600; font-size: 14.5px; }
.flash.ok { background: #eef7f2; color: var(--green); border: 1px solid #bfe0cd; }
.flash.err { background: #faf0ef; color: var(--red); border: 1px solid #e8c8c5; }

/* ---------- NAV ---------- */
header { position: sticky; top: 0; z-index: 50; background: rgba(31,43,71,.97); backdrop-filter: blur(6px); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: baseline; gap: 8px; text-decoration: none; }
.logo .m { font-style: italic; font-weight: 800; letter-spacing: 2px; color: #fff; font-size: 17px; }
.logo .c { font-size: 10px; letter-spacing: 2.5px; color: var(--gold); font-weight: 700; }
.nav ul { display: flex; gap: 26px; list-style: none; align-items: center; }
.nav ul a { color: #cdd3de; text-decoration: none; font-size: 14px; font-weight: 600; }
.nav ul a:hover { color: #fff; }
.nav .cta { background: var(--gold); color: var(--navy2); padding: 9px 16px; border-radius: 7px; }
.nav .cta:hover { color: var(--navy2); }
.burger { display: none; background: none; border: 0; color: #fff; font-size: 26px; cursor: pointer; }
@media (max-width: 860px) {
  .nav ul { position: fixed; inset: 64px 0 auto 0; background: var(--navy); flex-direction: column; padding: 18px 0 24px 0; gap: 16px; display: none; }
  .nav ul.open { display: flex; }
  .burger { display: block; }
}

/* ---------- HERO ---------- */
.hero { background: var(--navy); color: #fff; padding: 96px 0 90px 0; position: relative; overflow: hidden; }
.hero .formulae { position: absolute; inset: 0; opacity: .07; font-family: var(--serif); font-style: italic; font-size: 26px; line-height: 2.6; padding: 30px; user-select: none; pointer-events: none; }
.hero .grid2 { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; position: relative; }
.hero .k { font-size: 12px; letter-spacing: 4px; color: #8b93a3; font-weight: 700; }
.hero h1 { font-size: 44px; line-height: 1.12; margin: 14px 0 6px 0; }
.hero h1 em { font-style: normal; color: var(--gold); }
.hero p.sub { color: #cdd3de; font-size: 18px; margin: 14px 0 28px 0; max-width: 560px; }
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; }
.bookstack { display: flex; gap: 18px; justify-content: center; align-items: flex-end; }
.minibook { width: 150px; aspect-ratio: 6/9; background: linear-gradient(160deg, #26365a 0%, var(--navy2) 100%); border: 1px solid rgba(255,255,255,.14); border-radius: 4px 10px 10px 4px; box-shadow: 14px 18px 34px rgba(0,0,0,.4); padding: 16px 10px; text-align: center; color: #fff; transition: transform .2s ease; text-decoration: none; display: block; }
.minibook:hover { transform: translateY(-8px) rotate(-1deg); }
.minibook .k2 { font-size: 6px; letter-spacing: 1.6px; color: #8b93a3; }
.minibook .r { width: 22px; border-bottom: 2px solid var(--gold); margin: 6px auto; }
.minibook .t1 { font-weight: 800; font-size: 16.5px; line-height: 1.1; }
.minibook .t2 { color: var(--gold); font-weight: 700; font-size: 10.5px; margin-bottom: 8px; }
.minibook .f { font-family: var(--serif); font-style: italic; font-size: 8.5px; color: #cdd3de; margin: 10px 0; }
.minibook .a { font-size: 8px; letter-spacing: 1.5px; color: #cdd3de; margin-top: 12px; }
.minibook.mid { transform: scale(1.12); z-index: 2; }
.minibook.mid:hover { transform: scale(1.12) translateY(-8px); }
.minibook.big { width: 240px; padding: 28px 18px; margin: 0 auto; }
.minibook.big .k2 { font-size: 8px; }
.minibook.big .t1 { font-size: 26px; }
.minibook.big .t2 { font-size: 15px; }
.minibook.big .f { font-size: 12px; }
.minibook.big .a { font-size: 10px; }
.bookhero { padding: 70px 0; }
.bookhero .grid2 { grid-template-columns: .45fr 1fr; align-items: start; }
@media (max-width: 860px) { .hero .grid2, .bookhero .grid2 { grid-template-columns: 1fr; } .hero h1 { font-size: 34px; } .bookstack { margin-top: 14px; } .minibook { width: 118px; } }

/* ---------- STATS ---------- */
.stats { background: var(--light); border-bottom: 1px solid var(--line); padding: 26px 0; }
.stats .row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; text-align: center; }
.stats b { display: block; font-size: 30px; color: var(--navy); }
.stats span { color: var(--grey); font-size: 13.5px; }
@media (max-width: 720px) { .stats .row { grid-template-columns: repeat(2, 1fr); } }

/* ---------- METODO ---------- */
.mosse { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 30px; }
.mossa { background: #fdf6e7; border-left: 4px solid var(--gold); border-radius: 6px; padding: 20px 18px; text-align: left; }
.mossa .n { font-size: 26px; font-weight: 800; color: var(--gold-d); }
.mossa h3 { color: var(--navy); font-size: 16px; margin: 6px 0 6px 0; }
.mossa p { font-size: 14px; color: var(--grey); }
@media (max-width: 860px) { .mosse { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .mosse { grid-template-columns: 1fr; } }

/* ---------- LIBRI ---------- */
#libri { background: var(--light); }
.shelf { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 34px; }
.bcard { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; display: flex; flex-direction: column; transition: transform .15s ease, box-shadow .15s ease; }
.bcard:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(31,43,71,.12); }
.bcover { background: linear-gradient(165deg, #26365a 0%, var(--navy2) 100%); padding: 26px 14px; text-align: center; color: #fff; position: relative; text-decoration: none; display: block; }
.bcover .k2 { font-size: 7px; letter-spacing: 2px; color: #8b93a3; }
.bcover .r { width: 26px; border-bottom: 2.5px solid var(--gold); margin: 8px auto; }
.bcover .t1 { font-weight: 800; font-size: 21px; line-height: 1.05; }
.bcover .t2 { color: var(--gold); font-weight: 700; font-size: 12.5px; }
.bcover .f { font-family: var(--serif); font-style: italic; font-size: 10px; color: #cdd3de; margin-top: 12px; }
.badge-new { position: absolute; top: 10px; right: 10px; background: var(--gold); color: var(--navy2); font-size: 10px; font-weight: 800; letter-spacing: 1px; padding: 4px 8px; border-radius: 5px; }
.badge-soon { position: absolute; top: 10px; right: 10px; background: rgba(255,255,255,.14); color: #cdd3de; font-size: 10px; font-weight: 700; letter-spacing: 1px; padding: 4px 8px; border-radius: 5px; }
.binfo { padding: 16px 16px 18px 16px; display: flex; flex-direction: column; gap: 10px; flex: 1; text-align: left; }
.binfo h3 { color: var(--navy); font-size: 16px; }
.binfo p { font-size: 13.5px; color: var(--grey); flex: 1; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag { font-size: 11px; font-weight: 700; color: var(--navy); background: #e9eef8; border-radius: 20px; padding: 3px 10px; }
.price { font-size: 15px; color: var(--navy); }
.price b { font-size: 19px; }
.bcard .btn { text-align: center; padding: 11px 10px; font-size: 14px; }
.bcard.soon { border-style: dashed; }
@media (max-width: 980px) { .shelf { grid-template-columns: repeat(2, 1fr) !important; } }
@media (max-width: 560px) { .shelf { grid-template-columns: 1fr !important; } }

/* ---------- ANTEPRIMA ESERCIZIO ---------- */
.preview-wrap { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: center; margin-top: 8px; }
@media (max-width: 900px) { .preview-wrap { grid-template-columns: 1fr; } }
.exdemo { background: #fff; border: 1px solid var(--line); border-radius: 10px; box-shadow: 0 18px 40px rgba(31,43,71,.14); padding: 22px; font-family: var(--serif); max-width: 560px; }
.exdemo .ehead { font-family: var(--sans); border-bottom: 2.5px solid var(--navy); display: flex; justify-content: space-between; align-items: flex-end; padding-bottom: 4px; margin-bottom: 12px; }
.exdemo .num { font-weight: 800; font-size: 18px; color: var(--ink); }
.exdemo .num .h { color: var(--gold); font-size: 14px; }
.exdemo .pill { font-size: 9.5px; letter-spacing: 1px; color: #3a4358; border: 1px solid #c9ccd4; border-radius: 10px; padding: 2px 9px; }
.exdemo .pill .on { color: var(--gold); }
.exlbl { font-family: var(--sans); font-weight: 800; font-size: 10px; letter-spacing: 1.6px; display: block; margin-bottom: 2px; }
.exdemo .testo { background: #e9eef8; padding: 8px 12px; margin-bottom: 10px; }
.exdemo .testo .exlbl { color: var(--navy); }
.exdemo ol { padding-left: 22px; font-size: 14.5px; margin-bottom: 10px; }
.exdemo ol li { margin: 2px 0; }
.exdemo .ris { border: 1.2px solid var(--green); background: #eef7f2; border-radius: 4px; padding: 7px 12px; margin-bottom: 10px; }
.exdemo .ris .exlbl { color: var(--green); }
.exdemo .ris b { font-size: 15.5px; }
.exdemo .grafico { border: 1px solid var(--line); border-radius: 4px; padding: 8px 10px 6px 10px; margin-bottom: 10px; }
.exdemo .grafico .exlbl { color: #6a7280; }
.exdemo .gcap { font-style: italic; font-size: 12px; color: var(--grey); margin-top: 4px; }
.exdemo .err { background: #faf0ef; padding: 7px 12px; font-size: 13.5px; }
.exdemo .err .exlbl { color: var(--red); }
.featlist { list-style: none; margin-top: 18px; }
.featlist li { padding-left: 30px; position: relative; margin-bottom: 14px; color: var(--grey); font-size: 15.5px; text-align: left; }
.featlist li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--gold-d); font-weight: 800; font-size: 17px; }
.featlist li b { color: var(--navy); }

/* ---------- RISORSE ---------- */
#risorse { background: var(--navy); color: #fff; }
#risorse h2.title { color: #fff; }
#risorse .lead { color: #cdd3de; }
.rgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 34px 0; }
.rcardw { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: 12px; padding: 22px; text-align: left; }
.rcardw .ic { font-size: 26px; }
.rcardw h3 { font-size: 16px; margin: 10px 0 6px 0; }
.rcardw p { font-size: 13.5px; color: #cdd3de; }
.rcardw .free { display: inline-block; margin-top: 12px; font-size: 11px; font-weight: 800; letter-spacing: 1px; color: var(--gold); border: 1px solid var(--gold); border-radius: 20px; padding: 3px 10px; }
@media (max-width: 860px) { .rgrid { grid-template-columns: 1fr; } }
.leadform { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: 14px; padding: 26px; display: flex; gap: 12px; flex-wrap: wrap; align-items: center; text-align: left; }
.leadform p { flex: 1 1 260px; font-size: 15px; color: #cdd3de; }
.leadform p b { color: #fff; }
.leadform input:not(.hp) { flex: 1 1 220px; padding: 13px 14px; border-radius: 8px; border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.95); font-size: 14px; }
.leadform .note { flex-basis: 100%; font-size: 11.5px; color: #8b93a3; }

/* ---------- SERVIZI ---------- */
.sgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 34px; }
.scard { border: 1px solid var(--line); border-radius: 12px; padding: 24px; background: #fff; text-align: left; }
.scard .ic { width: 46px; height: 46px; border-radius: 10px; background: #e9eef8; color: var(--navy); display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 12px; }
.scard h3 { color: var(--navy); font-size: 16.5px; margin-bottom: 6px; }
.scard p { font-size: 14px; color: var(--grey); margin-bottom: 14px; }
.scard a.link { font-weight: 700; font-size: 14px; }
@media (max-width: 860px) { .sgrid { grid-template-columns: 1fr; } }

/* form dentro le card servizi */
.voteform, .segnform { display: flex; flex-direction: column; gap: 9px; }
.voteopt { position: relative; display: block; border: 1px solid var(--line); border-radius: 8px; padding: 9px 12px; cursor: pointer; font-size: 14px; overflow: hidden; }
.voteopt:hover { border-color: var(--gold); }
.voteopt input { margin-right: 8px; }
.voteopt .votebar { position: absolute; left: 0; top: 0; bottom: 0; background: #fdf6e7; z-index: -0; opacity: .8; }
.voteopt span, .voteopt small { position: relative; }
.voteopt small { float: right; color: var(--grey); font-weight: 700; }
.segnform input:not(.hp), .segnform select, .segnform textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; font-family: var(--sans); }
.voteform .btn, .segnform .btn { padding: 11px 10px; font-size: 14px; }

/* ---------- FAQ ---------- */
#faq { background: var(--light); }
.faq { max-width: 760px; margin: 30px auto 0 auto; }
.qa { background: #fff; border: 1px solid var(--line); border-radius: 10px; margin-bottom: 10px; overflow: hidden; }
.qa button { width: 100%; text-align: left; background: none; border: 0; padding: 16px 18px; font-size: 15.5px; font-weight: 700; color: var(--navy); cursor: pointer; display: flex; justify-content: space-between; gap: 12px; font-family: var(--sans); }
.qa button::after { content: "+"; color: var(--gold-d); font-size: 20px; font-weight: 800; }
.qa.open button::after { content: "−"; }
.qa .a { display: none; padding: 0 18px 16px 18px; color: var(--grey); font-size: 14.5px; text-align: left; }
.qa.open .a { display: block; }

/* ---------- ADMIN ---------- */
.atable { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.atable th, .atable td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; vertical-align: top; }
.atable th { background: var(--light); color: var(--navy); }

/* ---------- FOOTER ---------- */
footer { background: var(--navy2); color: #8b93a3; padding: 54px 0 30px 0; font-size: 13.5px; }
.fgrid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; margin-bottom: 30px; }
footer h4 { color: #fff; font-size: 14px; margin-bottom: 12px; letter-spacing: 1px; }
footer ul { list-style: none; }
footer li { margin-bottom: 8px; }
footer a { color: #cdd3de; text-decoration: none; }
footer a:hover { color: #fff; }
.fbottom { border-top: 1px solid rgba(255,255,255,.12); padding-top: 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
@media (max-width: 720px) { .fgrid { grid-template-columns: 1fr; } }