.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 28px 0 22px;
  border-right: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(10, 14, 15, 0.96), rgba(5, 7, 8, 0.98)),
    radial-gradient(circle at 50% 110%, rgba(98, 255, 77, 0.08), transparent 13rem);
}

body.light-theme .sidebar {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(237, 243, 241, 0.98)),
    radial-gradient(circle at 50% 110%, rgba(98, 255, 77, 0.12), transparent 13rem);
}

.brand {
  display: flex;
  justify-content: center;
  padding: 0 18px 20px;
}

.brand img {
  width: 64px;
  height: 64px;
  filter: drop-shadow(0 0 18px rgba(98, 255, 77, 0.18));
}

.sidebar-nav,
.sidebar-footer {
  display: grid;
  gap: 8px;
}

.sidebar-nav {
  margin-top: 8px;
}

.sidebar-footer {
  margin-top: auto;
}

.nav-link {
  min-height: 48px;
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 12px 0 22px;
  color: var(--muted);
  border-left: 3px solid transparent;
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease, padding-left 160ms ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text);
  background: linear-gradient(90deg, rgba(98, 255, 77, 0.18), rgba(98, 255, 77, 0.05));
  border-left-color: var(--green);
}

.nav-link:hover:not(.is-active) {
  padding-left: 26px;
}

.nav-link.is-active .nav-icon,
.nav-link:hover .nav-icon {
  color: var(--green);
}

.nav-icon {
  width: 20px;
  min-width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-weight: 800;
  line-height: 1;
}

.nav-icon.dashboard::before {
  content: "▦";
}

.nav-icon.entradas::before {
  content: "↗";
}

.nav-icon.despesas::before {
  content: "↘";
}

.nav-icon.comparativo::before {
  content: "⇄";
}

.nav-icon.investimentos::before {
  content: "◔";
}

.nav-icon.relatorios::before {
  content: "▤";
}

.nav-icon.analises::before {
  content: "▨";
}

.nav-icon.configuracoes::before {
  content: "⚙";
}

.nav-icon.sair::before {
  content: "⇥";
}

/* Botão "Voltar ao MundoDeFi" — topo do menu, abaixo do logo */
.back-home {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 14px 14px;
  padding: 9px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.back-home:hover {
  color: var(--green);
  border-color: rgba(98, 255, 77, 0.4);
  background: rgba(98, 255, 77, 0.08);
}

.back-home span { font-size: 1rem; line-height: 1; }