/* ExoVoIP by Exobyte - manuale sviluppatori */
:root {
  --bg: #f5f7fb;
  --fg: #111111;
  --card: #ffffff;
  --muted: #eef2f7;
  --muted-fg: #5b6476;
  --border: #e2e8f0;
  --brand: #0174c9;
  --brand-from: #0193db;
  --brand-to: #0055b7;
  --code-bg: #0f172a;
  --code-fg: #e2e8f0;
  --code-c: #94a3b8;
  --code-s: #86efac;
  --code-k: #7dd3fc;
  --code-n: #fca5a5;
  --code-v: #fcd34d;
  --warn: #b45309;
  --warn-soft: #fffbeb;
  --info-soft: #eff8ff;
  --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f19;
    --fg: #e7ebf3;
    --card: #0f172a;
    --muted: #162033;
    --muted-fg: #94a3b8;
    --border: #1e293b;
    --brand: #38b6f5;
    --code-bg: #0a1020;
    --warn: #fbbf24;
    --warn-soft: rgb(251 191 36 / 0.08);
    --info-soft: rgb(1 147 219 / 0.1);
    color-scheme: dark;
  }
}
* {
  box-sizing: border-box;
}
html {
  scroll-padding-top: 80px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font:
    15px/1.65 Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    'Helvetica Neue',
    Arial,
    sans-serif;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--brand);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 12px;
  top: 12px;
  z-index: 50;
  background: var(--card);
  padding: 8px 12px;
  border-radius: 8px;
}

/* Barra superiore */
.top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  height: 64px;
  padding: 0 24px;
  background: color-mix(in srgb, var(--card) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
}
.brand:hover {
  text-decoration: none;
}
.mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 1px 2px rgb(0 0 0 / 0.06);
  outline: 1px solid var(--border);
}
.mark img {
  height: 16px;
  width: auto;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-text strong {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand-text small {
  font-size: 11px;
  color: var(--muted-fg);
  font-weight: 500;
  margin-top: 2px;
}
.top-links {
  margin-left: auto;
  display: flex;
  gap: 6px;
}
.top-links a {
  padding: 7px 12px;
  border-radius: 10px;
  color: var(--fg);
  font-size: 13.5px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--card);
}
.top-links a:hover {
  border-color: var(--brand-from);
  text-decoration: none;
}
.menu-btn {
  display: none;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  border-radius: 10px;
  padding: 7px 10px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

/* Struttura */
.shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr) 220px;
  gap: 40px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}
.sidebar {
  position: sticky;
  top: 64px;
  align-self: start;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  padding: 24px 0 40px;
}
.nav-section {
  margin: 18px 0 6px;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted-fg);
}
.sidebar ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.sidebar a {
  display: block;
  padding: 5px 10px;
  border-radius: 8px;
  color: var(--fg);
  font-size: 14px;
}
.sidebar a:hover {
  background: var(--muted);
  text-decoration: none;
}
.sidebar a[aria-current='page'] {
  background: linear-gradient(90deg, var(--brand-from), var(--brand-to));
  color: #fff;
  font-weight: 600;
}
.content {
  min-width: 0;
  padding: 32px 0 64px;
}
article {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px 48px;
}
.toc {
  position: sticky;
  top: 64px;
  align-self: start;
  padding: 32px 0;
  font-size: 13px;
}
.toc p {
  margin: 0 0 8px;
  font-weight: 700;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted-fg);
}
.toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--border);
}
.toc a {
  display: block;
  padding: 3px 0 3px 12px;
  color: var(--muted-fg);
}
.toc a:hover {
  color: var(--brand);
  text-decoration: none;
}

/* Tipografia */
h1 {
  margin: 0 0 12px;
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
}
h1 + p {
  font-size: 17px;
  color: var(--muted-fg);
}
h2 {
  margin: 40px 0 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 22px;
  letter-spacing: -0.01em;
}
h3 {
  margin: 28px 0 8px;
  font-size: 17px;
}
h4 {
  margin: 20px 0 6px;
  font-size: 15px;
}
h2,
h3,
h4 {
  position: relative;
}
.anchor {
  position: absolute;
  left: -20px;
  opacity: 0;
  color: var(--muted-fg);
  font-weight: 400;
}
h2:hover .anchor,
h3:hover .anchor,
h4:hover .anchor {
  opacity: 1;
  text-decoration: none;
}
p,
ul,
ol {
  margin: 0 0 14px;
}
li {
  margin: 3px 0;
}
li > ul,
li > ol {
  margin: 4px 0;
}
hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 28px 0;
}
code {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86em;
  background: var(--muted);
  padding: 1px 6px;
  border-radius: 6px;
  overflow-wrap: anywhere;
}

/* Codice */
.code {
  position: relative;
  margin: 0 0 16px;
}
pre {
  margin: 0;
  padding: 16px 18px;
  background: var(--code-bg);
  color: var(--code-fg);
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.6;
}
pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  overflow-wrap: normal;
  white-space: pre;
}
.tk-c {
  color: var(--code-c);
  font-style: italic;
}
.tk-s {
  color: var(--code-s);
}
.tk-k {
  color: var(--code-k);
}
.tk-n {
  color: var(--code-n);
}
.tk-v {
  color: var(--code-v);
}
.copy {
  position: absolute;
  top: 8px;
  right: 8px;
  display: none;
  padding: 4px 10px;
  font:
    500 12px Inter,
    system-ui,
    sans-serif;
  color: #cbd5e1;
  background: rgb(255 255 255 / 0.08);
  border: 1px solid rgb(255 255 255 / 0.12);
  border-radius: 8px;
  cursor: pointer;
}
.js .copy {
  display: block;
  opacity: 0;
  transition: opacity 0.15s;
}
.code:hover .copy,
.copy:focus {
  opacity: 1;
}
.code-tabs {
  margin: 0 0 16px;
}
.code-tabs .tabs {
  display: none;
}
.js .code-tabs .tabs {
  display: flex;
  gap: 4px;
  padding: 6px 6px 0;
  background: var(--code-bg);
  border-radius: var(--radius) var(--radius) 0 0;
}
.code-tabs .tabs button {
  padding: 6px 12px;
  font:
    500 12.5px Inter,
    system-ui,
    sans-serif;
  color: #94a3b8;
  background: transparent;
  border: 0;
  border-radius: 8px 8px 0 0;
  cursor: pointer;
}
.code-tabs .tabs button[aria-selected='true'] {
  color: #fff;
  background: rgb(255 255 255 / 0.08);
}
.code-tabs .tab-panel[hidden] {
  display: block;
}
.js .code-tabs .tab-panel[hidden] {
  display: none;
}
.js .code-tabs pre {
  border-radius: 0 0 var(--radius) var(--radius);
}
.js .code-tabs .code {
  margin: 0;
}
.code-tabs .tab-panel .code {
  margin-bottom: 8px;
}

/* Tabelle */
.table {
  overflow-x: auto;
  margin: 0 0 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
th,
td {
  text-align: left;
  vertical-align: top;
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
}
th {
  background: var(--muted);
  font-weight: 600;
  font-size: 12.5px;
}
tr:last-child td {
  border-bottom: 0;
}
td code {
  white-space: nowrap;
}

/* Riquadri */
.callout {
  margin: 0 0 18px;
  padding: 14px 18px;
  border-radius: var(--radius);
  background: var(--info-soft);
  border: 1px solid color-mix(in srgb, var(--brand-from) 25%, transparent);
}
.callout.warn {
  background: var(--warn-soft);
  border-color: color-mix(in srgb, var(--warn) 30%, transparent);
}
.callout p:last-child {
  margin-bottom: 0;
}

/* Navigazione tra pagine */
.pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 24px;
}
.pager a {
  flex: 1;
  max-width: 48%;
  padding: 14px 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--fg);
  font-weight: 600;
}
.pager a:hover {
  border-color: var(--brand-from);
  text-decoration: none;
}
.pager span {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted-fg);
}
.pager .next {
  text-align: right;
  margin-left: auto;
}

.foot {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 28px 24px 40px;
  color: var(--muted-fg);
  font-size: 13px;
}
.foot img {
  height: 22px;
  width: auto;
}
.logo-dark {
  display: none;
}
@media (prefers-color-scheme: dark) {
  .logo-light {
    display: none;
  }
  .logo-dark {
    display: inline;
  }
}

/* Schermi stretti */
@media (max-width: 1180px) {
  .shell {
    grid-template-columns: 240px minmax(0, 1fr);
  }
  .toc {
    display: none;
  }
}
@media (max-width: 860px) {
  .menu-btn {
    display: inline-block;
  }
  .top {
    padding: 0 16px;
    gap: 10px;
  }
  .top-links a:first-child {
    display: none;
  }
  .shell {
    display: block;
    padding: 0 16px;
  }
  .sidebar {
    display: none;
    position: fixed;
    inset: 64px 0 0;
    max-height: none;
    z-index: 15;
    background: var(--bg);
    padding: 16px;
  }
  .sidebar.open {
    display: block;
  }
  article {
    padding: 24px 20px;
    border-radius: 16px;
  }
  h1 {
    font-size: 26px;
  }
  .foot {
    flex-direction: column;
    text-align: center;
  }
}

/* Link nel testo riconoscibili anche senza colore (accessibilità) */
.content article p a,
.content article li a,
.content article td a {
  text-decoration: underline;
  text-underline-offset: 2px;
}