/* ============================================
   Lab di Max - stile sito (versione A: Blog dei Tutorial)
   ============================================ */
:root{
  --ink:#16202e;
  --body:#3b4657;
  --muted:#7b8494;
  --bg:#ffffff;
  --bg-soft:#f5f7fa;
  --line:#e3e7ee;
  --accent:#2563eb;
  --accent-dark:#1e40af;
  --accent-soft:#eaf1fe;
  --kit:#fff7e6;
  --kit-line:#f0b429;
  --radius:12px;
  --maxw:1080px;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{font-family:"Segoe UI",system-ui,-apple-system,sans-serif; color:var(--body); background:var(--bg); line-height:1.65; font-size:16.5px;}
img{max-width:100%; display:block;}
a{color:var(--accent); text-decoration:none;}
a:hover{text-decoration:underline;}
h1,h2,h3{color:var(--ink); line-height:1.25;}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 22px;}

/* ---------- Header ---------- */
header.site{border-bottom:1px solid var(--line); background:var(--bg); position:sticky; top:0; z-index:50;}
header.site .wrap{display:flex; align-items:center; gap:26px; height:64px;}
.logo-ph{display:flex; align-items:center; gap:10px; font-weight:800; font-size:18px; color:var(--ink); white-space:nowrap;}
.logo-ph:hover{text-decoration:none;}
.logo-ph img{width:36px; height:36px; display:block;}
.logo-ph .mx{color:var(--accent);}
.logo-ph .mark{width:36px; height:36px; border:2px dashed #a7b0bf; border-radius:8px; display:flex; align-items:center; justify-content:center; font-size:15px; color:#a7b0bf; background:repeating-linear-gradient(45deg,#f0f2f5,#f0f2f5 5px,#fafbfc 5px,#fafbfc 10px);}
nav.main{display:flex; gap:22px; margin-left:auto; align-items:center; font-size:15px;}
nav.main a{color:var(--body); font-weight:500;}
nav.main a.active{color:var(--accent); font-weight:700;}
nav.main a.btn-news{background:var(--accent); color:#fff; padding:8px 16px; border-radius:8px; font-weight:600;}
nav.main a.btn-news:hover{background:var(--accent-dark); text-decoration:none;}
@media(max-width:720px){
  header.site .wrap{flex-wrap:wrap; height:auto; padding-top:10px; padding-bottom:10px;}
  nav.main{margin-left:0; width:100%; flex-wrap:wrap; gap:14px;}
}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,var(--bg-soft),#fff); border-bottom:1px solid var(--line); padding:56px 0 48px;}
.hero .wrap{display:grid; grid-template-columns:1.4fr 1fr; gap:40px; align-items:center;}
@media(max-width:820px){.hero .wrap{grid-template-columns:1fr;}}
.hero h1{font-size:clamp(28px,4.5vw,42px); margin-bottom:14px;}
.hero p.sub{font-size:18px; color:var(--body); margin-bottom:24px; max-width:520px;}
.hero .foto-ph{aspect-ratio:1/1; max-width:300px; width:100%; margin:0 auto; border:2px dashed #a7b0bf; border-radius:50%; display:flex; align-items:center; justify-content:center; color:#a7b0bf; font-size:14px; text-align:center; background:repeating-linear-gradient(45deg,#f0f2f5,#f0f2f5 8px,#fafbfc 8px,#fafbfc 16px);}
/* Visual brand nel hero (in attesa della foto di Max: sostituire .hero-brand con <img> foto rotonda) */
.hero-brand{aspect-ratio:1/1; max-width:300px; width:100%; margin:0 auto; border-radius:50%; background:radial-gradient(circle at 30% 25%, #223046, var(--ink)); display:flex; align-items:center; justify-content:center; box-shadow:0 14px 38px rgba(22,32,46,.22);}
.hero-brand img{width:52%; height:auto;}
.btn{display:inline-block; background:var(--accent); color:#fff; padding:12px 24px; border-radius:9px; font-weight:600; border:none; font-size:16px; cursor:pointer;}
.btn:hover{background:var(--accent-dark); text-decoration:none;}
.btn.ghost{background:transparent; color:var(--accent); border:1.5px solid var(--accent);}
.btn.ghost:hover{background:var(--accent-soft);}

/* ---------- Categorie ---------- */
.cats{display:flex; gap:12px; flex-wrap:wrap; margin-top:6px;}
.cat{display:inline-block; background:var(--accent-soft); color:var(--accent-dark); border:1px solid #c7dbfc; padding:6px 14px; border-radius:999px; font-size:14px; font-weight:600;}
a.cat:hover{background:#dbe8fd; text-decoration:none;}
.cat.small{font-size:12.5px; padding:3px 10px;}

/* ---------- Sezioni ---------- */
section.blk{padding:52px 0;}
section.blk.alt{background:var(--bg-soft); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
section.blk h2{font-size:26px; margin-bottom:8px;}
section.blk p.lead{color:var(--muted); margin-bottom:28px;}

/* ---------- Card tutorial ---------- */
.grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:24px;}
/* Sotto i 720px (stesso breakpoint del menu) la griglia diventa un carosello
   scorrevole in orizzontale: sotto quella larghezza le card entrerebbero una
   sola per riga, e uno scroll laterale con "assaggio" della card successiva
   si esplora più in fretta di uno stack verticale lunghissimo. */
@media(max-width:720px){
  .grid{
    display:flex;
    grid-template-columns:none;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:thin;
    gap:16px;
    margin:0 -22px;
    padding:2px 22px 14px;
  }
  .grid::-webkit-scrollbar{height:6px;}
  .grid::-webkit-scrollbar-thumb{background:var(--line); border-radius:99px;}
  .grid .card{flex:0 0 82%; max-width:320px; scroll-snap-align:start;}
  .grid .card:hover{transform:none;}
}
/* Frecce: aggiunte via js/carousel.js, solo intorno ai .grid che stanno
   scorrendo (classe .has-scroll). Visibili solo con mouse/trackpad: su
   touch (mobile/tablet) restano nascoste, lì basta lo swipe. */
.carousel-wrap{position:relative;}
.car-btn{display:none; position:absolute; top:50%; transform:translateY(-50%); width:36px; height:36px; border-radius:50%; border:1px solid var(--line); background:#fff; color:var(--ink); font-size:19px; line-height:1; cursor:pointer; box-shadow:0 4px 14px rgba(22,32,46,.16); z-index:2;}
.car-btn.prev{left:2px;}
.car-btn.next{right:2px;}
.car-btn:disabled{opacity:.3; cursor:default;}
@media(hover:hover) and (pointer:fine){
  .carousel-wrap.has-scroll .car-btn{display:flex; align-items:center; justify-content:center;}
}
.card{border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:#fff; transition:box-shadow .15s, transform .15s; display:flex; flex-direction:column;}
.card:hover{box-shadow:0 8px 22px rgba(22,32,46,.09); transform:translateY(-2px);}
.card .thumb{aspect-ratio:16/9; background:repeating-linear-gradient(45deg,#eceff3,#eceff3 8px,#f7f8fa 8px,#f7f8fa 16px); display:flex; align-items:center; justify-content:center; color:#a7b0bf; font-size:13px; border-bottom:1px solid var(--line);}
.card .thumb img{width:100%; height:100%; object-fit:cover;}
.card .body{padding:16px 18px 18px; display:flex; flex-direction:column; gap:8px; flex:1;}
.card h3{font-size:17.5px;}
.card h3 a{color:var(--ink);}
.card p{font-size:14.5px; color:var(--muted); flex:1;}
.card .meta{font-size:12.5px; color:var(--muted); display:flex; gap:8px; align-items:center; flex-wrap:wrap;}
.card.soon{opacity:.75;}
.badge-soon{background:#eef1f5; color:var(--muted); border:1px solid var(--line); padding:3px 10px; border-radius:999px; font-size:12.5px; font-weight:600;}
.date{color:var(--muted); font-weight:600; white-space:nowrap;}
.date.is-ph{font-style:italic; opacity:.8;}

/* ---------- Punti di valore ---------- */
.vals{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:22px;}
.val{background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:22px;}
.val .ico{font-size:26px; margin-bottom:8px;}
.val h3{font-size:17px; margin-bottom:6px;}
.val p{font-size:14.5px; color:var(--muted);}

/* ---------- Newsletter ---------- */
.news-box{background:var(--ink); color:#dfe5ee; border-radius:16px; padding:38px 34px; display:grid; grid-template-columns:1.2fr 1fr; gap:30px; align-items:center;}
@media(max-width:760px){.news-box{grid-template-columns:1fr;}}
.news-box h2{color:#fff; font-size:24px; margin-bottom:8px;}
.news-box p{font-size:15px;}
.news-form{display:flex; gap:10px; flex-wrap:wrap;}
.news-form input[type=email]{flex:1; min-width:200px; padding:12px 14px; border-radius:9px; border:1px solid #3d4b60; background:#223046; color:#fff; font-size:15px;}
.news-form input[type=email]::placeholder{color:#8fa0b8;}
.form-note{font-size:12.5px; color:var(--muted); margin-top:10px;}
.news-box .form-note{color:#8fa0b8;}

/* ---------- Articolo / landing video ---------- */
.art{max-width:780px; margin:0 auto; padding:48px 22px 60px;}
.art .crumbs{font-size:13.5px; color:var(--muted); margin-bottom:14px;}
.art h1{font-size:clamp(26px,4vw,36px); margin-bottom:10px;}
.art .meta{color:var(--muted); font-size:14px; margin-bottom:26px; display:flex; gap:10px; align-items:center; flex-wrap:wrap;}
.video-ph{aspect-ratio:16/9; background:#0e1520; border-radius:var(--radius); display:flex; flex-direction:column; align-items:center; justify-content:center; color:#8fa0b8; gap:10px; margin-bottom:34px; text-align:center; padding:20px;}
.video-ph .play{width:64px; height:64px; border-radius:50%; background:#223046; display:flex; align-items:center; justify-content:center; font-size:22px; color:#fff;}
.art h2{font-size:23px; margin:36px 0 12px;}
.art h3{font-size:18.5px; margin:26px 0 10px;}
.art p{margin-bottom:14px;}
.art ol, .art ul{margin:0 0 16px 24px;}
.art li{margin-bottom:8px;}
.tools-box{background:var(--bg-soft); border:1px solid var(--line); border-radius:var(--radius); padding:18px 22px; margin:22px 0;}
.tools-box h3{margin-top:0;}
.prompt-box{background:#0e1520; color:#d6e2f3; border-radius:var(--radius); padding:20px 22px; font-family:Consolas,Monaco,monospace; font-size:14px; line-height:1.6; margin:16px 0 8px; white-space:normal; position:relative;}
/* .multi: per i prompt strutturati su piu' righe (elenchi, sezioni). Conserva gli a capo del sorgente,
   quindi in questi box NON si va a capo a meta' frase: ogni riga del sorgente e' una riga vera del prompt. */
.prompt-box.multi{white-space:pre-wrap; padding-top:46px;}
.prompt-box .copy{position:absolute; top:10px; right:10px; background:#223046; color:#9fb3cd; border:none; border-radius:6px; padding:5px 12px; font-size:12.5px; cursor:pointer; font-family:inherit;}
.prompt-box .copy:hover{background:#2d3f5a; color:#fff;}
.warn{background:#fef2f2; border:1px solid #fca5a5; border-radius:var(--radius); padding:16px 20px; font-size:15px; margin:18px 0;}
.kit-box{background:var(--kit); border:1.5px solid var(--kit-line); border-radius:16px; padding:28px; margin:40px 0; text-align:center;}
.kit-box h2{margin-top:0; font-size:22px;}
.kit-box p{max-width:520px; margin:8px auto 18px;}
.kit-form{display:flex; gap:10px; max-width:460px; margin:0 auto; flex-wrap:wrap;}
.kit-form input[type=email]{flex:1; min-width:200px; padding:12px 14px; border-radius:9px; border:1px solid #dcc389; font-size:15px;}
.kit-btn{background:#b45309;}
.kit-btn:hover{background:#92400e;}

/* ---------- Pagine generiche ---------- */
.page{max-width:720px; margin:0 auto; padding:48px 22px 60px;}
.page h1{font-size:clamp(26px,4vw,34px); margin-bottom:16px;}
.page p{margin-bottom:14px;}
.page ul{margin:0 0 16px 24px;}
.page li{margin-bottom:8px;}

/* ---------- Footer ---------- */
footer.site{background:var(--bg-soft); border-top:1px solid var(--line); padding:36px 0 30px; margin-top:20px;}
footer.site .wrap{display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap; align-items:flex-start;}
footer.site .cols{display:flex; gap:40px; flex-wrap:wrap;}
footer.site h4{font-size:13px; text-transform:uppercase; letter-spacing:.5px; color:var(--muted); margin-bottom:10px;}
footer.site a{color:var(--body); display:block; font-size:14.5px; margin-bottom:6px;}
footer.site .fine{width:100%; border-top:1px solid var(--line); margin-top:24px; padding-top:16px; font-size:13px; color:var(--muted); display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;}
.socials a{display:inline-block; margin-right:14px;}