.side {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 60px;
  background-color: var(--bg-deep);
  border-right: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-direction: column;
  align-items: center;
  padding: 14px 0;
  z-index: 10;
}

@media (max-width: 1023.99px) {
  .side {
    width: 100%;
    height: 56px;
    bottom: 0;
    left: 0;
    top: auto;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    border-right: 0;
    border-top: 1px solid var(--border);
  }
}

/* Brand mark + vertical wordmark */
.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  color: var(--text-muted);
  transition: color 200ms ease;
  padding-top: 4px;
}

.brand:hover {
  color: var(--green-bright);
}

.brandMark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--green-bright);
  filter: drop-shadow(0 0 6px rgba(107, 158, 120, 0.35));
  transition:
    filter 220ms ease,
    transform 220ms ease;
}

.brandMark svg {
  display: block;
}

.brandMark svg circle:last-child {
  transform-origin: center;
  animation: brandPulse 2.2s ease-in-out infinite;
}

.brand:hover .brandMark {
  filter: drop-shadow(0 0 10px rgba(107, 158, 120, 0.6));
  transform: scale(1.05);
}

@keyframes brandPulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.55;
    transform: scale(0.82);
  }
}

.brandText {
  font-size: 1.3em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--green-bright);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  line-height: 1;
  white-space: nowrap;
  text-shadow: 0 0 10px var(--green-glow);
}

@media (max-width: 1023.99px) {
  .brand {
    flex-direction: row;
    gap: 10px;
    padding-top: 0;
  }

  .brandMark {
    width: 26px;
    height: 26px;
  }

  .brandMark svg {
    width: 18px;
    height: 18px;
  }

  .brandText {
    font-size: 0.8em;
    writing-mode: horizontal-tb;
    letter-spacing: 0.2em;
  }
}

.pages {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
}

@media (max-width: 1023.99px) {
  .pages {
    flex-direction: row;
    gap: 2px;
  }
}

.pageLink {
  text-decoration: none;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  color: var(--text-muted);
  transition:
    color 200ms ease,
    background 200ms ease;
}

.pageLink svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.pageLink:hover {
  color: var(--green-bright);
  background: var(--green-dim);
}

.pageLinkActive {
  color: var(--green-bright);
  background: var(--green-dim);
  box-shadow: inset 2px 0 0 var(--green);
}

@media (max-width: 1023.99px) {
  .pageLinkActive {
    box-shadow: inset 0 2px 0 var(--green);
  }
}

.about {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-muted);
  transition:
    color 200ms ease,
    background 200ms ease;
}

.about svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.about:hover {
  color: var(--amber);
  background: var(--amber-dim);
}