/* docs.praetor-ia.com — sidebar sinistra, foglio unico, nessuna webfont, nessun JS */
:root {
  --navy: #0F131D;
  --navy-soft: #202A3E;
  --ink: #1A2030;
  --ink-muted: #4A5468;
  --gold: #C5A880;
  --gold-ink: #7A5C22;
  --page: #F7F8FA;
  --surface: #FFFFFF;
  --line: #DDE1E8;
  --focus: #2F6FB2;
  --sidebar: 260px;
  --content: 46rem;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 400 17px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.shell { width: min(76rem, 100% - 2.5rem); margin-inline: auto; }

a { color: var(--gold-ink); text-underline-offset: 2px; }
a:hover { color: #5F4718; }
a:focus-visible, .btn:focus-visible, .table-wrap:focus-visible, summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--navy); color: #fff; padding: .6rem 1rem; z-index: 10;
}
.skip:focus { left: 0; }

/* header sottile */
.site-header { background: var(--navy); color: #F3F4F6; border-bottom: 2px solid var(--gold); }
.header-inner {
  display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 1rem;
  padding: .7rem 0;
}
.brand { color: #fff; font-weight: 700; font-size: 1.1rem; text-decoration: none; }
.brand::after { content: ""; display: block; width: 1.9rem; height: 2px; background: var(--gold); margin-top: .2rem; }
.brand:hover { color: #fff; }
.header-cta { margin: 0; justify-self: end; }
.btn {
  display: inline-block; background: var(--gold); color: #14181F; font-weight: 600;
  padding: .42rem .85rem; border-radius: 4px; text-decoration: none;
}
.btn:hover { background: #E3C59E; color: #14181F; }

/* menu compatto: solo mobile */
.menu-mobile { display: none; }

.layout {
  display: grid;
  grid-template-columns: var(--sidebar) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: start;
  padding: 2rem 0 2.5rem;
}

/* colonna sinistra: 10 guide in verticale */
.site-nav {
  position: sticky;
  top: 1rem;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: .85rem .6rem;
}
.nav-title {
  margin: 0 0 .5rem .55rem;
  font-size: .78rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink-muted);
}
.site-nav ul { list-style: none; margin: 0; padding: 0; }
.site-nav li { margin: 0; }
.site-nav a {
  display: block; padding: .45rem .55rem; border-radius: 4px;
  color: var(--ink); text-decoration: none; font-size: .95rem; line-height: 1.35;
  border-left: 3px solid transparent;
}
.site-nav a:hover { background: #EEF1F5; color: var(--navy); }
.site-nav a[aria-current="page"] {
  background: #EEF1F5; color: var(--navy); font-weight: 600;
  border-left-color: var(--gold);
}

/* contenuto */
.content { max-width: var(--content); min-width: 0; }
.content h1 { font-size: clamp(1.55rem, 3.2vw, 2rem); line-height: 1.25; margin: 0 0 1rem; color: var(--navy); }
.content h2 { font-size: 1.25rem; margin: 1.9rem 0 .6rem; color: var(--navy); }
.content h3 { font-size: 1.07rem; margin: 1.5rem 0 .5rem; color: var(--navy-soft); }
.content p, .content ul, .content ol { margin: 0 0 1rem; }
.content li { margin-bottom: .35rem; }
.content code { background: #EDEFF3; padding: .1rem .3rem; border-radius: 3px; font-size: .95em; }
.content blockquote {
  margin: 1.25rem 0; padding: .85rem 1.1rem; background: var(--surface);
  border-left: 4px solid var(--gold); color: var(--ink);
}
.content hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }

.table-wrap { overflow-x: auto; margin: 0 0 1.25rem; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; min-width: 30rem; }
th, td { text-align: left; padding: .6rem .8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #EEF1F5; color: var(--navy); font-weight: 600; }
tr:last-child td { border-bottom: 0; }

/* footer allineato alla colonna del contenuto */
.site-footer { grid-column: 2; border-top: 1px solid var(--line); margin-top: 2.5rem; padding-top: 1rem; }
.site-footer p { margin: 0; font-size: .95rem; color: var(--ink-muted); }

@media (max-width: 900px) {
  body { font-size: 16px; }
  .shell { width: min(46rem, 100% - 1.75rem); }
  .layout { grid-template-columns: 1fr; gap: 1rem; padding: 1rem 0 2rem; }
  .site-nav { display: none; }
  .menu-mobile { display: block; padding-top: .85rem; }
  .menu-mobile {
    background: var(--surface); border: 1px solid var(--line); border-radius: 6px;
  }
  .menu-mobile summary {
    cursor: pointer; padding: .7rem .85rem; font-weight: 600; color: var(--navy);
    list-style-position: inside;
  }
  .menu-mobile[open] summary { border-bottom: 1px solid var(--line); }
  .menu-mobile ul { list-style: none; margin: 0; padding: .4rem .5rem .6rem; }
  .menu-mobile a {
    display: block; padding: .5rem .55rem; border-radius: 4px;
    color: var(--ink); text-decoration: none; line-height: 1.35;
  }
  .menu-mobile a:hover { background: #EEF1F5; }
  .menu-mobile a[aria-current="page"] { background: #EEF1F5; color: var(--navy); font-weight: 600; }
  .site-footer { grid-column: 1; margin-top: 1.5rem; }
  .table-wrap { margin-inline: -0.25rem; }
  table { min-width: 26rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}