/* ============================================================
   WIKI MILANO — Design base (nuovo, 2026)
   Palette: blu oceano · verde prato · azzurro cielo · ambra · porpora
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --blu: #0d5aa7;
  --blu-scuro: #0a3f7a;
  --blu-notte: #072c56;
  --azzurro: #eaf3ff;
  --azzurro-vivo: #0ea5e9;
  --verde: #1e9e5a;
  --verde-scuro: #147a43;
  --verde-chiaro: #e8f7ef;
  --rosso: #c0392b;
  --rosso-chiaro: #fdecea;
  --ambra: #d9822b;
  --ambra-chiaro: #fdf3e3;
  --porpora: #7b5ea7;
  --porpora-chiaro: #f3effa;
  --testo: #1c2a3a;
  --grigio: #5a6b7d;
  --bordo: #d7e1ec;
  --sfondo: #f2f6fb;
}

html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; background: var(--sfondo); color: var(--testo); line-height: 1.7; font-size: 16px; }

.wrapper { display: flex; max-width: 1440px; margin: 0 auto; min-height: 100vh; }

/* ---------- Sidebar ---------- */
.sidebar {
  width: 290px; min-width: 290px;
  background: linear-gradient(180deg, var(--blu-notte) 0%, var(--blu-scuro) 60%, var(--blu) 100%);
  padding: 18px 0; position: sticky; top: 0; height: 100vh; overflow-y: auto;
  box-shadow: inset -1px 0 0 rgba(255,255,255,.08);
}
.sidebar-logo { padding: 0 16px 18px; border-bottom: 1px solid rgba(255,255,255,.14); margin-bottom: 12px; }
.sidebar-logo img { background: #fff; border-radius: 8px; padding: 6px; }
.sidebar-logo p { color: #cfe3ff; }
.sidebar nav ul { list-style: none; padding: 0 10px; }
.sidebar nav ul li { margin: 0; }
.sidebar nav ul li a {
  display: block; padding: 7px 13px; font-size: 13.5px; color: #dbe9ff; text-decoration: none;
  border-radius: 8px; transition: background .15s, color .15s;
}
.sidebar nav ul li a:hover { background: rgba(255,255,255,.12); color: #fff; }
.sidebar nav ul li.active a {
  background: linear-gradient(90deg, var(--verde), #34c17a); color: #fff; font-weight: 700;
  box-shadow: 0 3px 10px rgba(0,0,0,.22);
}
.sidebar .nav-title {
  padding: 14px 18px 6px; font-size: 11px; font-weight: 800; color: #8fb8e8;
  text-transform: uppercase; letter-spacing: 1.4px;
}

/* ---------- Content ---------- */
.content {
  flex: 1; padding: 28px 36px 70px; max-width: 980px; background: #fff;
  box-shadow: 0 0 0 1px rgba(13,90,167,.08), 0 8px 30px rgba(13,90,167,.08);
  margin: 0 auto; border-radius: 0;
}
.content h1 {
  font-size: 30px; font-weight: 800; color: var(--blu-notte);
  padding-bottom: 10px; margin-bottom: 20px;
  border-bottom: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--blu), var(--verde)) 1;
  font-family: 'Georgia', serif;
}
.content h2 {
  font-size: 22px; font-weight: 700; color: var(--blu);
  padding: 6px 0 6px 14px; margin: 30px 0 14px;
  border-left: 5px solid var(--verde); background: linear-gradient(90deg, var(--verde-chiaro), transparent);
  border-radius: 0 6px 6px 0; font-family: 'Georgia', serif;
}
.content h3 { font-size: 18px; font-weight: 700; color: var(--blu-scuro); margin: 22px 0 10px; }
.content p { margin: 0 0 13px; text-align: justify; }
.content ul, .content ol { margin: 0 0 14px 28px; }
.content li { margin-bottom: 6px; }
.content a { color: var(--blu); text-decoration: none; border-bottom: 1px dotted rgba(13,90,167,.45); }
.content a:hover { color: var(--verde-scuro); border-bottom: 1px solid var(--verde); }

.content blockquote {
  background: var(--azzurro); border-left: 5px solid var(--azzurro-vivo);
  padding: 14px 20px; margin: 18px 0; font-style: italic; color: var(--blu-scuro); border-radius: 0 8px 8px 0;
}

.content table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 14.5px; }
.content th, .content td { border: 1px solid var(--bordo); padding: 9px 13px; text-align: left; vertical-align: top; }
.content th { background: linear-gradient(180deg, var(--blu), var(--blu-scuro)); color: #fff; font-weight: 700; }
.content tr:nth-child(even) td { background: #f7fafd; }

.content img { max-width: 100%; height: auto; border-radius: 10px; margin: 16px 0; box-shadow: 0 4px 14px rgba(13,90,167,.16); }
.content .img-caption { font-size: 13px; color: var(--grigio); text-align: center; margin-top: -10px; margin-bottom: 16px; }

/* Infobox */
.infobox {
  float: right; width: 290px; background: #fff; border: 1px solid var(--bordo);
  border-radius: 10px; margin: 0 0 16px 20px; font-size: 13.5px; overflow: hidden;
  box-shadow: 0 4px 14px rgba(13,90,167,.10);
}
.infobox th { background: linear-gradient(135deg, var(--blu), var(--azzurro-vivo)); color: #fff; text-align: center; font-size: 17px; padding: 12px; }
.infobox td { padding: 7px 12px; vertical-align: top; border-top: 1px solid #eef3f9; }
.infobox td:first-child { font-weight: 700; width: 108px; color: var(--blu-scuro); background: #f7fafd; }

/* TOC / Indice */
.toc, .indice {
  background: linear-gradient(135deg, var(--azzurro), #f5fbff);
  border: 1px solid var(--bordo); border-radius: 10px; padding: 16px 22px; margin: 18px 0 24px;
}
.toc-title { font-size: 14px; font-weight: 700; margin-bottom: 8px; text-align: center; color: var(--blu-scuro); }
.toc ul, .indice ol { margin: 0; }
.toc ul { list-style: none; }
.toc ul li { padding: 2px 0; font-size: 13.5px; }
.toc ul ul { padding-left: 20px; }
.indice b { display: block; margin-bottom: 8px; color: var(--blu-scuro); }

/* Breadcrumb */
.breadcrumb {
  font-size: 12.5px; color: var(--grigio); margin-bottom: 18px;
  background: var(--azzurro); display: inline-block; padding: 5px 14px; border-radius: 999px;
}
.breadcrumb a { color: var(--blu); border: none; }
.breadcrumb span { color: var(--grigio); }

/* Nav buttons */
.nav-buttons { display: flex; justify-content: space-between; gap: 10px; margin-top: 40px; padding-top: 16px; border-top: 1px solid var(--bordo); }
.nav-buttons a {
  padding: 10px 18px; background: #fff; border: 1.5px solid var(--bordo); border-radius: 999px;
  color: var(--blu); text-decoration: none; font-size: 13.5px; font-weight: 600; transition: all .15s;
}
.nav-buttons a:hover { background: var(--azzurro); border-color: var(--blu); }

/* Footer */
.footer {
  text-align: center; padding: 18px 0; font-size: 12.5px; color: var(--grigio);
  border-top: 1px solid var(--bordo); margin-top: 40px;
}
.footer a { border: none; }

.answer-capsule {
  background: var(--verde-chiaro); border-left: 5px solid var(--verde);
  padding: 13px 18px; margin: 10px 0 18px; font-size: 15px; border-radius: 0 8px 8px 0;
}

@media (max-width: 860px) {
  .wrapper { flex-direction: column; }
  .sidebar { width: 100%; min-width: auto; height: auto; position: relative; padding: 12px 0; }
  .content { padding: 18px; }
  .infobox { float: none; width: 100%; margin: 16px 0; }
}