:root{--blue:oklch(0.51 0.22 252);--blue-dark:oklch(0.40 0.22 252);--blue-light:oklch(0.94 0.04 252);--teal:oklch(0.60 0.17 192);--dark:oklch(0.13 0.015 252);--text:oklch(0.30 0.015 252);--muted:oklch(0.58 0.012 252);--bg:oklch(0.99 0.004 252);--surface:oklch(0.97 0.007 252);--border:oklch(0.90 0.01 252)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Plus Jakarta Sans',sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-dark)}

/* NAV LOGO (immagine reale) */
.nav-logo{display:flex;align-items:center;text-decoration:none;flex-shrink:0}
.nav-logo .logo-img{height:48px;width:auto;display:block}

/* FOOTER LOGO (immagine dark) */
.footer-logo-link{display:inline-flex;text-decoration:none}
.footer-logo-img{height:72px;width:auto;display:block}

/* NAV */
nav.site-nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);padding:0 24px}
.nav-inner{max-width:1140px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:80px;flex-wrap:nowrap;gap:16px}
.logo-img{height:30px;display:block}
.nav-links{display:flex;gap:20px;list-style:none}
.nav-links li{white-space:nowrap}
.nav-links a{color:var(--text);font-size:14px;font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--blue)}
.nav-links a.active{color:var(--blue);font-weight:700}
.btn-primary{background:var(--blue);color:#fff;border:none;padding:10px 22px;border-radius:50px;font-size:14px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:background .2s,transform .15s,box-shadow .2s}
.btn-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 20px oklch(0.51 0.22 252 / 0.35)}
.nav-hamburger{display:none;background:none;border:none;cursor:pointer;padding:4px}
@media (max-width:768px){.nav-links{display:none}.nav-hamburger{display:block}}

/* HERO */
.article-hero{background:var(--surface);padding:56px 24px 40px;border-bottom:1px solid var(--border)}
.article-hero-inner{max-width:760px;margin:0 auto}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:20px;display:flex;gap:8px;align-items:center}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--blue)}
.article-tag{display:inline-flex;background:var(--blue-light);color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:5px 14px;border-radius:50px;margin-bottom:20px}
.article-hero h1{font-size:clamp(30px,4vw,46px);font-weight:800;line-height:1.12;letter-spacing:-1.2px;color:var(--dark);text-wrap:pretty;margin-bottom:20px}
.article-meta{display:flex;gap:10px;align-items:center;font-size:13px;color:var(--muted);font-weight:500}

/* ARTICLE BODY */
.article-body{padding:56px 24px 40px}
.article-inner{max-width:760px;margin:0 auto;font-size:17px;line-height:1.75;color:var(--text)}
.article-inner h2{font-size:28px;font-weight:800;color:var(--dark);letter-spacing:-.6px;margin:48px 0 20px;text-wrap:pretty}
.article-inner h2:first-child{margin-top:0}
.article-inner p{margin-bottom:22px}
.article-inner strong{color:var(--dark);font-weight:700}
.article-inner ul,.article-inner ol{margin:0 0 22px 22px;display:flex;flex-direction:column;gap:10px}
.article-inner li{padding-left:4px}
.article-inner blockquote{border-left:3px solid var(--blue);background:var(--surface);padding:20px 24px;border-radius:0 12px 12px 0;margin:0 0 22px;font-size:16px;color:var(--text);font-style:italic}
.article-inner blockquote p{margin-bottom:8px}
.article-inner blockquote .cite{font-size:13px;font-style:normal;color:var(--muted);font-weight:600}
.article-inner pre{background:var(--dark);color:oklch(0.85 0.01 252);padding:20px 24px;border-radius:12px;font-family:'Courier New',monospace;font-size:13.5px;line-height:1.8;overflow-x:auto;margin-bottom:22px}
.article-inner code{font-family:'Courier New',monospace}

/* TABLE */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;display:block;width:100%;margin-bottom:28px;border:1px solid var(--border);border-radius:14px}
.article-inner table{border-collapse:collapse;font-size:14.5px;background:#fff;min-width:560px;width:100%}
.article-inner th{background:var(--surface);color:var(--dark);font-weight:700;text-align:left;padding:14px 18px;border-bottom:1px solid var(--border);white-space:nowrap}
.article-inner td{padding:14px 18px;border-bottom:1px solid var(--border);color:var(--text)}
.article-inner tr:last-child td{border-bottom:none}
.article-inner td:first-child,.article-inner th:first-child{font-weight:600;color:var(--dark)}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;margin-bottom:8px}
.faq-item{border:1px solid var(--border);border-radius:14px;padding:4px 20px;background:#fff}
.faq-item summary{cursor:pointer;font-weight:700;color:var(--dark);padding:16px 0;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';font-size:22px;font-weight:400;color:var(--blue);flex-shrink:0}
.faq-item[open] summary::after{content:'−'}
.faq-item .faq-answer{padding:0 0 18px;color:var(--muted);font-size:15px;line-height:1.7}
.faq-item .faq-answer p{margin:0}

/* CTA */
.article-cta{background:var(--dark);text-align:center;padding:80px 24px}
.article-cta-tag{display:inline-flex;background:oklch(0.25 0.03 252);color:oklch(0.72 0.12 252);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:5px 14px;border-radius:50px;margin-bottom:16px}
.article-cta h2{font-size:clamp(26px,3.5vw,38px);font-weight:800;color:#fff;letter-spacing:-1px;margin-bottom:16px}
.article-cta p{color:oklch(0.65 0.01 252);font-size:16px;margin-bottom:36px;max-width:520px;margin-left:auto;margin-right:auto}
.article-cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-white{background:#fff;color:var(--blue);border:none;padding:15px 30px;border-radius:50px;font-size:15px;font-weight:700;display:inline-flex;align-items:center;gap:8px;transition:all .2s}
.btn-white:hover{background:var(--blue-light);transform:translateY(-2px);color:var(--blue)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.3);padding:15px 30px;border-radius:50px;font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:8px;transition:all .2s}
.btn-ghost:hover{border-color:rgba(255,255,255,.6);background:rgba(255,255,255,.05);color:#fff}

/* BLOG INDEX */
.blog-index-hero{background:var(--surface);padding:56px 24px 40px;border-bottom:1px solid var(--border)}
.blog-index-hero-inner{max-width:1140px;margin:0 auto}
.blog-index-hero h1{font-size:clamp(30px,4vw,46px);font-weight:800;color:var(--dark);letter-spacing:-1.2px;margin-bottom:12px}
.blog-index-hero p{font-size:16px;color:var(--muted)}
.blog-index{padding:60px 24px 80px}
.blog-index-inner{max-width:1140px;margin:0 auto}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.blog-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.blog-grid{grid-template-columns:1fr}}

/* RELATED */
.related{padding:60px 24px 80px;background:var(--surface)}
.related-inner{max-width:760px;margin:0 auto}
.related h2{font-size:22px;font-weight:800;color:var(--dark);margin-bottom:24px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px;transition:all .2s;display:block}
.related-card:hover{border-color:var(--blue);transform:translateY(-2px);box-shadow:0 8px 24px oklch(0.51 0.22 252 / 0.1)}
.related-tag{font-size:11px;font-weight:700;color:var(--blue);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}
.related-title{font-size:14.5px;font-weight:700;color:var(--dark);line-height:1.4}
@media (max-width:768px){.related-grid{grid-template-columns:1fr}}

/* FOOTER */
footer.site-footer{background:oklch(0.10 0.015 252);padding:60px 24px 40px}
.footer-inner{max-width:1140px;margin:0 auto}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand p{font-size:14px;color:oklch(0.55 0.01 252);line-height:1.7;margin-top:14px;max-width:280px}
.footer-col-title{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:oklch(0.65 0.01 252);margin-bottom:16px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:oklch(0.50 0.01 252)}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid oklch(0.20 0.015 252);padding-top:28px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:13px;color:oklch(0.40 0.01 252)}
@media (max-width:768px){.footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media (max-width:480px){.footer-top{grid-template-columns:1fr}}