:root {
  --s-card: var(--bsf-bg2, #ffffff);
  --s-border: var(--bsf-stroke, rgba(12, 48, 76, 0.10));
  --s-text: var(--bsf-text, #213743);
  --s-text2: var(--bsf-text, #213743);
  --s-muted: var(--bsf-muted, #5A7A90);
  --s-accent: var(--bsf-accent, #1E70B8);
  --s-hover: color-mix(in srgb, var(--bsf-accent, #1E70B8) 8%, transparent);
  --s-r-lg: 24px;
  --s-r-sm: 14px;
  --s-shadow-xs: 0 10px 28px rgba(12, 48, 76, 0.08);
  --s-shadow-sm: 0 16px 32px rgba(12, 48, 76, 0.12);
  --topbar-h: var(--bsf-topbar-h, 80px);
  --bsf-portal-entry-left: 16px;
  --bsf-portal-entry-width: 200px;
  --bsf-portal-entry-gap: 16px;
  --s-nav-bg: #184E42;
  --s-nav-border: rgba(255,255,255,0.09);
  --s-nav-text: #D4EDE7;
  --s-nav-muted: #8DBFB6;
  --s-nav-hover: rgba(255,255,255,0.07);
  --s-nav-active-bg: rgba(255,255,255,0.14);
  --s-nav-active-text: #FFFFFF;
  --s-nav-accent: #6FD6FF;
  --s-nav-hr: rgba(255,255,255,0.08);
}

body.bsf-portal-entry-nav-active {
  padding-left: calc(var(--bsf-portal-entry-left) + var(--bsf-portal-entry-width) + var(--bsf-portal-entry-gap));
}

#bsfPortalEntryNavMount .bsf-left-col {
  position: fixed;
  left: var(--bsf-portal-entry-left);
  top: calc(var(--topbar-h) + 18px);
  width: var(--bsf-portal-entry-width);
  z-index: 940;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

#bsfPortalEntryNavMount .bsf-sticky-inner {
  position: static;
}

#bsfPortalEntryNavMount .bsf-card {
  background: var(--s-card);
  border: 1px solid var(--s-border);
  border-radius: var(--s-r-lg);
  box-shadow: var(--s-shadow-xs);
  overflow: hidden;
  min-width: 0;
  transition: box-shadow .2s;
}

#bsfPortalEntryNavMount .bsf-card:hover {
  box-shadow: var(--s-shadow-sm);
}

#bsfPortalEntryNavMount .bsf-sidenav {
  padding: 10px 8px;
}

#bsfPortalEntryNavMount .bsf-sidenav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--s-r-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--s-text);
  transition: background .15s, color .15s;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#bsfPortalEntryNavMount .bsf-sidenav a:hover {
  background: var(--s-hover);
  color: var(--s-accent);
}

#bsfPortalEntryNavMount .bsf-sidenav a.active {
  background: linear-gradient(135deg, rgba(30,112,184,.14) 0%, rgba(12,48,76,.08) 100%);
  color: var(--s-accent);
  font-weight: 600;
}

html[data-theme="dark"] #bsfPortalEntryNavMount .bsf-sidenav a.active {
  background: rgba(77,158,208,.14);
}

#bsfPortalEntryNavMount .bsf-sidenav a i {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  flex-shrink: 0;
}

#bsfPortalEntryNavMount .bsf-sidenav hr {
  border: none;
  border-top: 1px solid var(--s-border);
  margin: 8px 6px;
}

.bsf-mobile-nav {
  display: none;
  flex-direction: column;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--s-card);
  border-top: 1px solid var(--s-border);
  z-index: 950;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  box-shadow: 0 -4px 24px rgba(0,0,0,.10);
}

[data-theme="dark"] .bsf-mobile-nav {
  box-shadow: 0 -4px 24px rgba(0,0,0,.40);
}

.bsf-mobile-nav-main {
  display: flex;
  justify-content: space-around;
  align-items: stretch;
}

.bsf-mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 9px 4px 7px;
  font-size: 10px;
  font-weight: 500;
  color: var(--s-muted);
  text-decoration: none;
  transition: color .15s;
  flex: 1;
  position: relative;
  min-width: 0;
  text-align: center;
}

.bsf-mobile-nav-item.active {
  color: var(--s-accent);
}

.bsf-mobile-nav-item i {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.bsf-mobile-nav-badge {
  position: absolute;
  top: 6px;
  right: calc(50% - 20px);
  background: #ef4444;
  color: #fff;
  font-size: 9px;
  font-weight: 800;
  min-width: 15px;
  height: 15px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--s-card);
  padding: 0 3px;
}

.bsf-more-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.25);
  z-index: 949;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s;
}

.bsf-more-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.bsf-more-row {
  display: none;
  justify-content: space-around;
  align-items: stretch;
  border-bottom: 1px solid var(--s-border);
}

.bsf-more-row.open {
  display: flex;
}

body.bsf-more-open {
  overflow: hidden;
}

.bsf-mobile-nav button.bsf-mobile-nav-item {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

/* NAV SHELL — exact visual layer from social */
#bsfPortalEntryNavMount .bsf-left-col .bsf-card {
  background: var(--s-nav-bg) !important;
  border-color: var(--s-nav-border) !important;
  box-shadow: none;
}

#bsfPortalEntryNavMount .bsf-sidenav a {
  color: var(--s-nav-text) !important;
}

#bsfPortalEntryNavMount .bsf-sidenav a:hover {
  background: var(--s-nav-hover);
  color: var(--s-nav-text) !important;
}

#bsfPortalEntryNavMount .bsf-sidenav a.active,
html[data-theme="dark"] #bsfPortalEntryNavMount .bsf-sidenav a.active {
  background: var(--s-nav-active-bg);
  color: var(--s-nav-active-text) !important;
}

#bsfPortalEntryNavMount .bsf-sidenav a.active i {
  color: var(--s-nav-accent);
  stroke: var(--s-nav-accent);
}

#bsfPortalEntryNavMount .bsf-sidenav hr {
  border-top-color: var(--s-nav-hr);
}

.bsf-mobile-nav,
[data-theme="dark"] .bsf-mobile-nav {
  background: var(--s-nav-bg);
  border-top: 1px solid var(--s-nav-border);
  box-shadow: 0 -4px 24px rgba(0,0,0,.30);
}

.bsf-mobile-nav-item {
  color: var(--s-nav-muted);
}

.bsf-mobile-nav-item.active {
  color: var(--s-nav-accent);
}

.bsf-mobile-nav-badge {
  border-color: var(--s-nav-bg);
}

.bsf-more-row {
  border-bottom: 1px solid var(--s-nav-border);
}

@media (max-width: 1120px) {
  :root {
    --bsf-portal-entry-left: 12px;
    --bsf-portal-entry-width: 180px;
    --bsf-portal-entry-gap: 12px;
  }
}

@media (max-width: 920px) {
  :root {
    --bsf-portal-entry-left: 10px;
    --bsf-portal-entry-width: 160px;
    --bsf-portal-entry-gap: 10px;
  }
}

@media (max-width: 720px) {
  .bsf-mobile-nav {
    display: flex;
    flex-direction: column;
  }

  body.bsf-portal-entry-nav-active {
    padding-left: 0;
    padding-bottom: calc(60px + env(safe-area-inset-bottom, 0px));
  }

  #bsfPortalEntryNavMount .bsf-left-col {
    display: none !important;
  }

  #bsfPortalEntryNavMount .bsf-sidenav hr {
    display: none;
  }
}

@media (min-width: 721px) {
  .bsf-more-overlay,
  .bsf-more-row {
    display: none !important;
  }
}