/* ============================================================
   sidebar.css — Layout sidebar + área principal
   ============================================================ */

.app-shell {
  display: flex;
  gap: 16px;
  padding: 20px;
  min-height: 100vh;
  max-width: 1400px;
  margin: 0 auto;
}

/* ── SIDEBAR ───────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 20px 14px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 20px;
  align-self: flex-start;
  max-height: calc(100vh - 40px);
}

.sb-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px 18px;
  border-bottom: 1px solid var(--divider);
  margin-bottom: 14px;
  text-decoration: none;
  color: inherit;
}
.sb-logo {
  width: 30px;
  height: 30px;
  background: var(--itau-orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  font-family: Arial, sans-serif;
  flex-shrink: 0;
}
.sb-brand-text {
  font-weight: 600;
  font-size: 12.5px;
  letter-spacing: 0.3px;
  line-height: 1.2;
}

.sb-section-label {
  font-size: 9px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--muted2);
  font-weight: 600;
  padding: 0 10px 8px;
}

.sb-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  overflow-y: auto;
}

.sb-link {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: background .15s, color .15s;
  cursor: pointer;
}
.sb-link:hover { background: var(--surface3); color: var(--text); }
.sb-link svg { flex-shrink: 0; width: 16px; height: 16px; }

/* Estado ativo: cor por área */
.sb-link.active { font-weight: 600; }
.sb-link.active.area-home    { background: var(--navy-lt);  color: var(--navy);  }
.sb-link.active.area-fundos  { background: var(--navy-lt);  color: var(--navy);  }
.sb-link.active.area-prev    { background: var(--pos-bg);   color: var(--pos);   }
.sb-link.active.area-corr    { background: var(--warn-bg);  color: var(--warn);  }
.sb-link.active.area-calc    { background: var(--info-bg);  color: var(--info);  }

/* Footer da sidebar */
.sb-footer {
  padding: 12px 10px 4px;
  border-top: 1px solid var(--divider);
  margin-top: 12px;
}
.sb-footer-label {
  font-size: 9px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--muted2);
  font-weight: 600;
  margin-bottom: 3px;
}
.sb-footer-value {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--navy);
}

/* ── ÁREA PRINCIPAL ────────────────────────────────────────── */
.main {
  flex: 1;
  min-width: 0; /* permite shrink dentro do flex */
}

/* ── HAMBURGER (mobile only) ───────────────────────────────── */
.hamburger {
  display: none;
  position: fixed;
  top: 16px;
  left: 16px;
  width: 42px;
  height: 42px;
  background: var(--surface);
  border: none;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  z-index: 100;
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
}
.hamburger svg { width: 20px; height: 20px; color: var(--navy); }

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(13, 27, 62, 0.4);
  z-index: 90;
}

/* ── RESPONSIVE: <= 900px ──────────────────────────────────── */
@media (max-width: 900px) {
  .app-shell { padding: 12px; gap: 0; }
  .hamburger { display: flex; }

  .sidebar {
    position: fixed;
    left: 0; top: 0;
    height: 100vh;
    max-height: 100vh;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    transform: translateX(-105%);
    transition: transform .25s ease;
    z-index: 95;
    width: 260px;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-backdrop.open { display: block; }

  .main { padding-top: 56px; } /* espaço para o hamburger */
}