:root{
  --desktop-sidebar-width: 70px;
  --mobile-header-height: 72px;
}

/* ===== Desktop Left Sidebar ===== */
.sidebar-header {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--desktop-sidebar-width);
  height: 100vh;
  background: linear-gradient(to bottom, #0071bb, #243188);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.sidebar-header::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 1px;
  height: 100%;
  background: rgba(255,255,255,0.25);
}

.sidebar-inner {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 18px 12px;
}

.sidebar-header .site-logo img {
  max-width: 48px;
  height: auto;
}

.sidebar-header .menu-toggle {
  background: none;
  border: 0;
  padding: 0;
  margin: 30px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.sidebar-header .menu-toggle span {
  width: 28px;
  height: 3px;
  background: #fff;
  display: block;
  border-radius: 2px;
}

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

/* ===== Main content shifted right on desktop ===== */
.site-main {
  margin-left: var(--desktop-sidebar-width);
  min-height: 100vh;
}

/* optional: if you want full-width sections to behave nicely */
.site-main > section,
.site-main > div {
  width: 100%;
}

/* ===== Tablet / Mobile Top Header ===== */
.top-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(to right, #0071bb, #243188);
  z-index: 9999;
  height: var(--mobile-header-height);
  display: flex;
  align-items: center;
}

.top-header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: var(--mobile-header-height);
}

.top-header .site-logo img {
  max-height: 40px;
  width: auto;
}

.top-header .menu-toggle {
  background: none;
  border: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.top-header .menu-toggle span {
  width: 26px;
  height: 3px;
  background: #fff;
  display: block;
  border-radius: 2px;
}

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
  .site-main {
    margin-left: 0;
    padding-top: var(--mobile-header-height);
  }
}