/* ============================================================
   cluBase.it /docs — foglio di stile unico della documentazione
   Token allineati a quelli della landing (index.html :root).
   A ogni modifica di questo file o di nav.js: incrementare ?v= nei
   riferimenti dentro le pagine (Sostituisci nei file su docs/).
   ============================================================ */
:root{
    --ink:#0F1B3D;          /* testo principale */
    --blue:#1E3A8A;         /* struttura / brand */
    --blue-700:#1D4ED8;
    --blue-soft:#EEF2FB;    /* fondi azzurri */
    --orange:#FF6B15;       /* azione */
    --orange-600:#F25C00;
    --green:#16A34A;        /* conferma */
    --bg:#FFFFFF;
    --bg-alt:#F6F8FC;       /* sezioni alternate */
    --line:#E7EBF3;
    --muted:#5B6478;
    --radius:18px;
    --shadow:0 10px 30px rgba(15,27,61,.07);
    --font-sans:system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
    --font-grotesk:'Space Grotesk',sans-serif;   /* come landing: dichiarato, fallback sans-serif */
    --sidebar-w:280px;
    --content-max:76ch;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{font-family:var(--font-sans);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6;font-size:17px}
img{max-width:100%;height:auto;display:block}

/* ---------- Header (impianto della landing) ---------- */
.docs-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;padding:0 1.5rem}
.docs-header .brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.docs-header .brand img{height:36px;width:auto}
.docs-header .brand .docs-tag{font-family:var(--font-grotesk);font-weight:600;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-700);background:var(--blue-soft);border-radius:999px;padding:.25rem .7rem}
.docs-header nav{display:flex;align-items:center;gap:1.2rem}
.docs-header nav a{color:var(--ink);text-decoration:none;font-size:.95rem}
.docs-header nav a:hover{color:var(--blue-700)}
.docs-header .cta{font-family:var(--font-grotesk);font-weight:600;background:var(--orange);color:#fff;padding:.6rem 1.2rem;border-radius:12px;box-shadow:0 8px 20px rgba(255,107,21,.28);transition:background .18s ease,transform .18s ease}
.docs-header .cta:hover{background:var(--orange-600);color:#fff;transform:translateY(-2px)}

/* ---------- Impianto a due colonne ---------- */
.docs-shell{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr)}

/* ---------- Sidebar / albero ---------- */
.docs-side{border-right:1px solid var(--line);background:var(--bg-alt);padding:24px 16px 48px}
.docs-side .side-inner{position:sticky;top:88px;max-height:calc(100vh - 112px);overflow-y:auto;padding-right:4px}
.docs-side .side-home{display:block;padding:8px 10px;margin-bottom:10px;font-family:var(--font-grotesk);font-size:.76rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);text-decoration:none;border-left:2px solid transparent;border-radius:0 8px 8px 0}
.docs-side .side-home:hover{background:var(--blue-soft)}
.docs-side .side-home.is-current{border-left-color:var(--orange);background:var(--blue-soft)}
.docs-side details{margin-bottom:6px}
.docs-side .side-inner>details>summary{cursor:pointer;list-style:none;font-family:var(--font-grotesk);font-size:.76rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);padding:8px 10px;border-radius:8px;user-select:none}
.docs-side .side-inner>details>summary::-webkit-details-marker{display:none}
.docs-side .side-inner>details>summary::after{content:"▸";float:right;color:var(--muted);transition:transform .15s ease}
.docs-side .side-inner>details[open]>summary::after{transform:rotate(90deg)}
.docs-side .side-inner>details>summary:hover{background:var(--blue-soft)}
.docs-side ul{list-style:none;margin:0 0 8px;padding:0 0 0 6px}
.docs-side li a{display:block;padding:6px 10px;font-size:.9rem;color:var(--ink);text-decoration:none;border-left:2px solid transparent;border-radius:0 8px 8px 0}
.docs-side li a:hover{color:var(--blue-700);background:var(--blue-soft)}
.docs-side li a.is-current{color:var(--blue);font-weight:600;border-left-color:var(--orange);background:var(--blue-soft)}

/* ---------- Contenuto ---------- */
.docs-main{padding:36px 48px 80px;min-width:0}
.docs-article{max-width:var(--content-max)}

.breadcrumb{font-size:.83rem;color:var(--muted);margin-bottom:18px}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--blue-700);text-decoration:underline}

.docs-article h1{font-size:2.1rem;letter-spacing:-.02em;color:var(--ink);line-height:1.15;margin:0 0 10px}
.docs-article .lede{font-size:1.12rem;color:var(--muted);margin:0 0 32px;max-width:46rem}
.docs-article h2{font-size:1.4rem;letter-spacing:-.02em;color:var(--ink);line-height:1.2;margin:44px 0 12px;padding-top:14px;border-top:1px solid var(--line)}
.docs-article h3{font-size:1.08rem;letter-spacing:-.01em;margin:28px 0 8px}
.docs-article p{margin:0 0 16px}
.docs-article a{color:var(--blue-700);text-decoration:underline;text-underline-offset:2px}
.docs-article a:hover{color:var(--blue)}
.docs-article strong{color:var(--ink)}
.docs-article code{font-size:.9em;background:var(--bg-alt);border:1px solid var(--line);border-radius:6px;padding:1px 5px}

/* Riquadro nota / suggerimento */
.docs-note{background:var(--blue-soft);border-left:3px solid var(--blue);border-radius:0 var(--radius) var(--radius) 0;padding:14px 18px;margin:24px 0;font-size:.94rem}
.docs-note p:last-child{margin-bottom:0}

/* Card della index */
.docs-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin:28px 0}
.docs-card{display:block;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;text-decoration:none;color:var(--ink);background:var(--bg);box-shadow:var(--shadow);transition:transform .18s ease}
.docs-card:hover{border-color:var(--blue);transform:translateY(-2px)}
.docs-card .card-section{font-family:var(--font-grotesk);font-size:.7rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--orange)}
.docs-card h3{margin:6px 0;font-size:1.02rem;color:var(--blue)}
.docs-card p{margin:0;font-size:.88rem;color:var(--muted);line-height:1.5}

/* Navigazione di coda: precedente / successivo */
.docs-pager{display:flex;justify-content:space-between;gap:16px;margin-top:56px;padding-top:20px;border-top:1px solid var(--line);font-size:.94rem}
.docs-pager a{color:var(--blue-700);text-decoration:none}
.docs-pager a:hover{text-decoration:underline}
.docs-pager .pager-label{display:block;font-size:.78rem;color:var(--muted)}

/* Footer */
.docs-footer{border-top:1px solid var(--line);padding:24px;text-align:center;font-size:.83rem;color:var(--muted)}
.docs-footer a{color:var(--muted)}


/* Sottomenu collassabili della nav (es. Contenuti WEB, Avanzate) */
.docs-side .sotto{margin:0}
.docs-side .sotto>summary{list-style:none;cursor:pointer;padding:0;position:relative}
.docs-side .sotto>summary::-webkit-details-marker{display:none}
.docs-side .sotto>summary::after{content:"▸";position:absolute;right:10px;top:6px;color:var(--muted);font-size:.8rem;transition:transform .15s ease}
.docs-side .sotto[open]>summary::after{transform:rotate(90deg)}
.docs-side .sotto>summary a{display:block;padding-right:28px}
.docs-side .sottovoci{margin:0;padding:0 0 0 14px}
.docs-side .sottovoci li a{font-size:.84rem;color:var(--muted)}
.docs-side .sottovoci li a:hover{color:var(--blue-700)}

/* Guida al pannello: sezioni come accordion nativi <details> */
.guida-sez{border-top:1px solid var(--line);scroll-margin-top:88px}
.guida-sez>summary{list-style:none;cursor:pointer;padding:14px 0;user-select:none}
.guida-sez>summary::-webkit-details-marker{display:none}
.guida-sez>summary::after{content:"▸";float:right;color:var(--muted);font-size:1rem;line-height:1.6;transition:transform .15s ease}
.guida-sez[open]>summary::after{transform:rotate(90deg)}
.guida-sez>summary h2{display:inline-block;margin:0;border-top:none;padding-top:0}
.guida-sez>summary:hover h2{color:var(--blue-700)}
.guida-sez h3{scroll-margin-top:88px}

/* ---------- Mobile ---------- */
@media (max-width:900px){
    .docs-shell{grid-template-columns:1fr}
    .docs-side{border-right:none;border-bottom:1px solid var(--line);padding:12px 16px}
    .docs-side .side-inner{position:static;max-height:none;overflow:visible}
    .docs-main{padding:28px 20px 60px}
    .docs-header nav a.nav-secondary{display:none}
    .docs-article h1{font-size:1.7rem}
}