/* ---------- site sidebar (shared by every page) ----------
   Wide screens: fixed rail on the left.
   Narrow screens: sticky bar across the top. */

.sidenav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--navy);
  color: var(--sky);
  box-shadow: 0 6px 18px -12px rgba(0,0,0,.6);
}

.sidenav-inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 50rem;
  margin: 0 auto;
  padding: 0.55rem 1rem;
}

.sidenav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--sky);
  flex: none;
}

.sidenav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 2px solid rgba(245,188,63,.45);
  background: #000;
  display: block;
}

.sidenav-brand span {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.125rem;
  line-height: 1;
}

.sidenav ul {
  list-style: none;
  margin: 0 0 0 auto;
  padding: 0;
  display: flex;
  gap: 0.3rem;
}

.sidenav a.navlink {
  display: block;
  text-decoration: none;
  color: var(--sky);
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.9375rem;
  line-height: 1.1;
  white-space: nowrap;
  border: 2px solid transparent;
  border-radius: 999px;
  padding: 0.45rem 0.75rem 0.5rem;
  transition: background .14s ease, border-color .14s ease, color .14s ease;
}

.sidenav a.navlink:hover { background: rgba(255,255,255,.08); }

.sidenav a.navlink[aria-current="page"] {
  color: var(--navy);
  background: var(--gold);
  border-color: var(--gold);
}

.sidenav a:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; }

@media (max-width: 30rem) {
  .sidenav-brand span { display: none; }
  .sidenav ul { gap: 0.15rem; }
  .sidenav a.navlink { font-size: 0.875rem; padding: 0.45rem 0.6rem 0.5rem; }
}

/* rail layout */
@media (min-width: 64rem) {
  body { padding-left: 15rem; }

  .sidenav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 15rem;
    box-shadow: 6px 0 24px -16px rgba(0,0,0,.6);
  }

  .sidenav-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 1.75rem;
    height: 100%;
    padding: 1.75rem 1.1rem;
  }

  .sidenav-brand { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .sidenav-brand img { width: 96px; height: 96px; border-radius: var(--r-md); }
  .sidenav-brand span { font-size: 1.5rem; }

  .sidenav ul { flex-direction: column; margin: 0; gap: 0.4rem; }
  .sidenav a.navlink { font-size: 1.0625rem; padding: 0.7rem 1rem 0.75rem; }

  .sidenav-foot {
    margin-top: auto;
    font-family: var(--pixel);
    font-size: 0.5625rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #9DBBCD;
  }
  .sidenav-foot a { color: var(--gold); }
}

@media (max-width: 63.99rem) {
  .sidenav-foot { display: none; }
}