/* ==========================================================================
   DetectionCode side navigation  (loaded after styles.css)
   Moves the old top menu bar into a left sidebar. Palette: charcoal #282c34,
   green #4CAF50, mint tints, same as the rest of the site.
   ========================================================================== */
.grid-container {
  --side-w: 250px;
  grid-template-columns: var(--side-w) minmax(0, 1fr) auto;
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    'nav  center-column right-column'
    'left center-column right-column'
    'footer footer footer';
  justify-content: stretch;
  align-items: start;
}
.grid-container > .center-column { grid-row: 1 / span 2; min-width: 0; align-self: stretch; }
.grid-container > .left-column  { grid-area: left; }
.grid-container > .right-column { grid-row: 1 / span 2; }
.grid-container > .footer { grid-area: footer; align-self: stretch; }
/* empty rails shouldn't take space */
.grid-container > .left-column:not(:has(*)),
.grid-container > .right-column:not(:has(*)) { display: none; }
.grid-container > .left-column { margin: 0 0 16px 16px; border-radius: 12px; padding: 16px; }

/* ---------- the sidebar card ---------- */
.sidenav {
  grid-area: nav;
  height: auto; overflow: visible; width: auto;
  margin: 16px 0 16px 16px; padding: 12px;
  background: #282c34; color: #cfd6df; text-align: left; font-size: 15px;
  border-radius: 14px; box-shadow: 0 6px 18px rgba(0,0,0,.14);
  position: sticky; top: 12px; align-self: start;
  max-height: calc(100vh - 24px); overflow-y: auto;
}
.sidenav::before {
  content: "Navigate"; display: block; padding: 4px 12px 10px;
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: #7f8a99; font-weight: 700;
}
.sidenav .nav-toggle { display: none; }
.sidenav ul { list-style: none; margin: 0; padding: 0; width: auto; }
.sidenav ul li { display: block; margin: 2px 0; }

.sidenav ul li > a, .sidenav ul li > .dropbtn {
  display: flex; align-items: center; gap: 12px; width: 100%;
  padding: 10px 12px; margin: 0; border: 0; border-radius: 9px;
  background: transparent; color: #cfd6df; font: inherit; font-size: 15px; font-weight: 600;
  text-align: left; text-decoration: none; cursor: pointer; box-sizing: border-box;
}
.sidenav .fa:not(.caret) { width: 20px; text-align: center; color: #6fcf75; font-size: 17px; flex: none; }
.sidenav ul li span { flex: 1; text-align: left; }
.sidenav .caret { color: #7f8a99; transition: transform .2s ease; font-size: 18px; }
.sidenav li.open > .dropbtn .caret { transform: rotate(180deg); }

.sidenav ul li > a:hover, .sidenav ul li > .dropbtn:hover,
.sidenav .dropdown:hover > .dropbtn { background: rgba(255,255,255,.08); color: #fff; }
.sidenav a:focus-visible, .sidenav .dropbtn:focus-visible, .sidenav .nav-toggle:focus-visible {
  outline: 2px solid #8be28f; outline-offset: 2px;
}
/* current top-level page */
.sidenav ul li > a.nav-link[aria-current="page"] { background: #4CAF50; color: #fff; }
.sidenav a.nav-link[aria-current="page"] .fa { color: #fff; }
/* group that contains the current page */
.sidenav li.current > .dropbtn { color: #fff; }

/* sub menu: inline accordion, no floating panels */
.sidenav .dropdown-content {
  display: none; position: static; min-width: 0; box-shadow: none; background: transparent;
  margin: 2px 0 6px 21px; padding: 2px 0 2px 12px; border-left: 2px solid rgba(255,255,255,.12);
}
.sidenav li.open > .dropdown-content,
.sidenav .dropdown:focus-within > .dropdown-content { display: block; }
@media (hover: hover) and (min-width: 901px) {
  .sidenav .dropdown:hover > .dropdown-content { display: block; }
  .sidenav .dropdown:hover > .dropbtn .caret { transform: rotate(180deg); }
}
.sidenav ul li .dropdown-content a {
  float: none; text-align: left; justify-content: flex-start; padding: 7px 10px; font-size: 14px; font-weight: 500; color: #b3bcc8; border-radius: 7px;
}
.sidenav ul li .dropdown-content a:hover { background: rgba(255,255,255,.08); color: #fff; }
.sidenav ul li .dropdown-content a[aria-current="page"] { background: rgba(76,175,80,.22); color: #b9f1bc; font-weight: 700; }


/* ---------- phones / narrow: sidebar becomes a collapsible bar ---------- */
@media (max-width: 900px) {
  .grid-container {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: 'nav' 'left' 'center-column' 'right-column' 'footer';
    grid-template-rows: auto;
  }
  .grid-container > .center-column,
  .grid-container > .right-column { grid-row: auto; }
  .grid-container > .left-column { margin: 0 12px 12px; }
  .sidenav { position: static; margin: 10px 12px; max-height: none; padding: 8px; }
  .sidenav::before { display: none; }
  .sidenav .nav-toggle {
    display: flex; align-items: center; gap: 10px; width: 100%; padding: 11px 12px;
    background: transparent; color: #fff; border: 0; border-radius: 9px; font: inherit; font-weight: 700; cursor: pointer;
  }
  .sidenav .nav-toggle .fa { color: #6fcf75; width: 20px; text-align: center; }
  .sidenav ul { display: none; padding-top: 6px; }
  .sidenav.nav-open ul { display: block; }
}
@media (prefers-reduced-motion: reduce) { .sidenav .caret { transition: none; } }

/* ---------- footer credit ---------- */
.footer { height: auto; min-height: 10vh; box-sizing: border-box; }
.footer p { margin: 4px 0; }
.footer .footer-credit { font-size: 14px; color: #cfd6df; }
.footer .footer-credit strong { color: #fff; }
.footer .footer-credit a { color: #8be28f; font-weight: 700; text-decoration: none; }
.footer .footer-credit a:hover, .footer .footer-credit a:focus-visible { color: #fff; text-decoration: underline; }