.site-sidebar {
  --sidebar-accent: var(--ef-aqua, #83c092);
  --sidebar-text: var(--text, #cdd8d1);
  --sidebar-muted: var(--muted, #99a39e);
  display: flex;
  flex-direction: column;
  gap: clamp(4.5rem, 11vh, 7.5rem);
  position: sticky;
  top: clamp(3rem, 10vh, 6.5rem);
  width: 12rem;
  z-index: 10;
}

.site-shell {
  align-items: start;
  display: grid;
  gap: clamp(2.5rem, 5vw, 5rem);
  grid-template-columns: 12rem minmax(0, 1fr);
}

.site-main {
  min-width: 0;
}

.site-sidebar__brand,
.site-sidebar__brand:visited {
  align-items: center;
  color: var(--ink, #f5fff7);
  display: flex;
  gap: 0.9rem;
  text-decoration: none;
}

.site-sidebar__mark {
  align-items: center;
  background: var(--sidebar-accent);
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08) inset, 0 0 28px rgba(131, 192, 146, 0.08);
  color: var(--page-deep, #050f0f);
  display: inline-flex;
  flex: 0 0 2.55rem;
  font-family: "Ioskeley Mono", monospace;
  font-size: 0.78rem;
  font-weight: 700;
  height: 2.55rem;
  justify-content: center;
  letter-spacing: -0.08em;
}

.site-sidebar__name {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.25;
  text-transform: uppercase;
}

.site-sidebar__nav {
  align-items: flex-start;
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
}

.site-sidebar__link,
.site-sidebar__link:visited {
  align-items: center;
  color: var(--sidebar-muted);
  display: flex;
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.98rem;
  font-weight: 500;
  gap: 0.58rem;
  line-height: 1.4;
  padding: 0.2rem 0;
  text-decoration: none;
  transition: color 150ms ease, transform 150ms ease;
}

.site-sidebar__link:hover {
  color: var(--ink, #f5fff7);
  transform: translateX(0.18rem);
}

.site-sidebar__new-tab {
  font-family: "Ioskeley Mono", monospace;
  font-size: 0.76em;
  line-height: 1;
  margin-left: -0.2rem;
  opacity: 0.72;
  transform: translateY(-0.08rem);
}

.site-sidebar__dot {
  background: transparent;
  border-radius: 50%;
  flex: 0 0 0.34rem;
  height: 0.34rem;
  transition: background-color 150ms ease, box-shadow 150ms ease;
  width: 0.34rem;
}

.site-sidebar__link.is-active,
.site-sidebar__link.is-active:visited {
  color: var(--sidebar-accent);
}

.site-sidebar__link.is-active .site-sidebar__dot {
  background: var(--sidebar-accent);
  box-shadow: 0 0 12px rgba(131, 192, 146, 0.3);
}

@media (min-width: 761px) {
  .site-page .site-header {
    display: none;
  }

  .site-page .page-content {
    padding-top: clamp(3.25rem, 10vh, 6.5rem);
  }
}

@media (max-width: 760px) {
  .site-sidebar {
    align-items: center;
    backdrop-filter: blur(16px) saturate(118%);
    background: rgba(8, 25, 24, 0.92);
    border-bottom: 1px solid rgba(157, 169, 160, 0.14);
    flex-direction: row;
    gap: 1rem;
    height: 5rem;
    justify-content: space-between;
    left: 0;
    padding: 0 1rem;
    position: fixed;
    right: 0;
    top: 0;
    width: auto;
  }

  .site-shell {
    display: block;
  }

  .site-main a {
    overflow-wrap: anywhere;
  }

  .site-sidebar__mark {
    flex-basis: 2.1rem;
    height: 2.1rem;
  }

  .site-sidebar__name {
    display: none;
  }

  .site-sidebar__nav {
    align-items: center;
    flex-direction: row;
    gap: clamp(0.75rem, 4vw, 1.4rem);
  }

  .site-sidebar__link,
  .site-sidebar__link:visited {
    font-size: 0.88rem;
  }

  .site-page .site-header {
    display: none;
  }

  .site-page .page-content {
    padding-top: 6.8rem;
  }

  body.profile-page {
    padding-top: 6.5rem;
  }
}

@media print {
  .site-sidebar { display: none; }
}