/* ═══════════════════════════════════════════════
   sidebar.css  –  Standalone Sidebar Component
   IndianSpermTech / BM Project
   Enterprise-Grade Dark Navy Sidebar
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --sb-width:          280px;
  --sb-collapsed:      68px;
  --sb-header-height:  70px;

  /* ── Dark Navy Sidebar Palette ── */
  --sb-bg:             #02021A; /* Very deep dark navy background */
  --sb-border:         rgba(255, 255, 255, 0.06); /* Subtle borders */
  --sb-divider:        rgba(255, 255, 255, 0.06);
  --sb-text:           #FFFFFF; /* White navigation text */
  --sb-text-dim:       #64748B; /* Muted gray for section labels */
  --sb-icon-color:     #FFFFFF; /* White icons */

  /* ── Interaction Tokens ── */
  --sb-parent-hover:   rgba(255, 255, 255, 0.05); /* Translucent white hover */
  --sb-parent-active:  rgba(37, 99, 235, 0.2); /* Base transparency for active glass */
  
  --sb-radius:         8px;
  --sb-transition:     0.35s cubic-bezier(0.4, 0, 0.2, 1); /* Premium ease-in-out bezier */
}

/* ── Layout Shell ── */
.sb-layout {
  display: flex;
  min-height: 100vh;
}

/* Main content — driven by margin-left and fixed header padding-top */
.sb-main {
  flex: 1;
  min-width: 0;
  margin-left: var(--sb-width);
  padding-top: var(--sb-header-height);
  transition: margin-left var(--sb-transition), padding-top var(--sb-transition);
}

.sb-main.sb-main-collapsed {
  margin-left: var(--sb-collapsed);
}

/* ── Sidebar Wrapper ── */
#appSidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sb-width);
  height: 100vh;
  display: flex;
  flex-direction: column;
  z-index: 1050;
  transition: width var(--sb-transition);
  overflow: visible;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: transparent; /* Seamless top header */
  pointer-events: none; /* Clicks pass through the transparent top wrapper */
}

/* Enable pointer events for actual menu content */
#appSidebar .sb-toggle,
#appSidebar .sb-header,
#appSidebar .sb-role-wrap,
#appSidebar .sb-nav,
#appSidebar .sb-footer {
  pointer-events: auto;
}

/* Collapsed state */
#appSidebar.sb-collapsed {
  width: var(--sb-collapsed);
}

/* ── Toggle Pill ── */
.sb-toggle {
  position: absolute;
  top: 50%;
  right: -13px;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #02021A;
  border: 1px solid var(--sb-border);
  color: var(--sb-text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.75rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  transition: all 0.25s ease-in-out;
  z-index: 1060;
  flex-shrink: 0;
}

.sb-toggle:hover {
  background: var(--sb-parent-hover);
  border-color: #2563EB;
  color: #FFFFFF;
}

.sb-toggle i {
  transition: transform var(--sb-transition);
  pointer-events: none;
}

#appSidebar.sb-collapsed .sb-toggle i {
  transform: rotate(180deg);
}

/* ── Logo / Header ── */
.sb-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  background: transparent; /* Let full-width navbar gradient show through */
  height: var(--sb-header-height);
  flex-shrink: 0;
  overflow: hidden;
  white-space: nowrap;
  box-sizing: border-box;
}

.sb-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, #2563EB, #1D4ED8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #FFFFFF;
  flex-shrink: 0;
  box-shadow: 0 3px 10px rgba(37, 99, 235, 0.25);
}

.sb-logo-text {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: opacity var(--sb-transition), width var(--sb-transition);
}

.sb-logo-text strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.2px;
}

.sb-logo-text span {
  font-size: 0.65rem;
  color: #94A3B8; /* Muted gray-blue */
  letter-spacing: 0.8px;
  text-transform: uppercase;
  font-weight: 600;
  margin-top: 1px;
}

#appSidebar.sb-collapsed .sb-logo-text {
  opacity: 0;
  width: 0;
}

/* ── Role Selector ── */
.sb-role-wrap {
  padding: 12px 18px;
  border-right: 1px solid var(--sb-border);
  background: var(--sb-bg);
  flex-shrink: 0;
  overflow: hidden;
}

.sb-role-label {
  font-size: 0.6rem;
  color: var(--sb-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 5px;
  font-weight: 600;
  white-space: nowrap;
  transition: opacity var(--sb-transition);
}

#appSidebar.sb-collapsed .sb-role-label {
  opacity: 0;
}

.sb-role-select {
  width: 100%;
  background: #0A0D30;
  border: 1px solid rgba(77, 77, 255, 0.2);
  border-radius: 8px;
  color: var(--sb-text);
  font-size: 0.8rem;
  padding: 6px 12px;
  cursor: pointer;
  outline: none;
  transition: opacity var(--sb-transition), border-color 0.2s;
  appearance: none;
  -webkit-appearance: none;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2);
}

.sb-role-select option {
  background: #02021A;
  color: var(--sb-text);
}

.sb-role-select:focus {
  border-color: #2563EB;
}

#appSidebar.sb-collapsed .sb-role-select {
  opacity: 0;
  pointer-events: none;
}

/* ── Nav Scroll Area ── */
.sb-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 10px 0 16px;
  border-right: 1px solid var(--sb-border);
  background: var(--sb-bg);
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}

.sb-nav::-webkit-scrollbar {
  width: 4px;
}

.sb-nav::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

/* ── Section Label ── */
.sb-section {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--sb-text-dim);
  padding: 16px 20px 6px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  transition: opacity var(--sb-transition), max-height var(--sb-transition), padding var(--sb-transition);
}

#appSidebar.sb-collapsed .sb-section {
  opacity: 0;
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
}

/* ── Parent Group Header ── */
.sb-group {
  margin: 2px 0;
}

.sb-group-header {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  margin: 2px 10px;
  border-radius: var(--sb-radius);
  color: var(--sb-text);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  user-select: none;
  transition: transform var(--sb-transition), 
              background var(--sb-transition), 
              color var(--sb-transition),
              box-shadow var(--sb-transition);
}

.sb-group-header .sb-icon {
  font-size: 1.15rem;
  flex-shrink: 0;
  width: 20px;
  text-align: center;
  color: var(--sb-icon-color);
  transition: transform var(--sb-transition), color var(--sb-transition);
}

.sb-group-header .sb-label {
  flex: 1;
  font-size: large;
  transition: opacity var(--sb-transition);
}

.sb-group-header .sb-arrow {
  font-size: 0.7rem;
  color: var(--sb-text);
  transition: transform var(--sb-transition), color var(--sb-transition);
  flex-shrink: 0;
}

/* Parent Header Hover Anim */
.sb-group-header:hover {
  background: var(--sb-parent-hover);
  color: #FFFFFF;
  transform: translateX(6px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
}

.sb-group-header:hover .sb-icon {
  color: #FFFFFF;
  transform: scale(1.08);
}

.sb-group-header.open {
  color: #FFFFFF;
}

.sb-group-header.open .sb-arrow {
  transform: rotate(180deg);
}

/* Active parent header - Glassmorphism & load pulse shine */
.sb-group-header.active {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25) 0%, rgba(29, 78, 216, 0.15) 100%) !important;
  border: 1px solid rgba(37, 99, 235, 0.3) !important;
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.2) !important;
  color: #FFFFFF !important;
  animation: activeLoadShine 1s cubic-bezier(0.4, 0, 0.2, 1) 1;
}

.sb-group-header.active .sb-icon,
.sb-group-header.active .sb-arrow {
  color: #FFFFFF !important;
}

/* ── Growing vertical left indicator bar on hover ── */
.sb-group-header::before,
.sb-item::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  transform-origin: top;
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: #2563EB; /* Vibrant blue indicator */
  transition: transform var(--sb-transition);
  pointer-events: none;
}

.sb-group-header:hover::before,
.sb-item:hover::before {
  transform: translateY(-50%) scaleY(1);
}

.sb-group-header.active::before,
.sb-item.active::before {
  transform: translateY(-50%) scaleY(1) !important;
}

/* ── Submenu Children Container (Height + Opacity Animation) ── */
.sb-group-children {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transform: translateY(-8px);
  transition: max-height var(--sb-transition), 
              opacity var(--sb-transition), 
              transform var(--sb-transition);
  background: transparent;
  border-left: none;
  margin-left: 24px;
  margin-right: 10px;
  margin-top: 4px;
  margin-bottom: 6px;
  padding: 0;
}

.sb-group-children.open {
  max-height: 600px;
  opacity: 1;
  transform: translateY(0);
}

/* ── Nav Item (Child / Subpage Links) ── */
.sb-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  margin: 2px 6px;
  border-radius: 6px;
  color: var(--sb-text);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  user-select: none;
  
  opacity: 0;
  transform: translateY(-10px);
  transition: transform var(--sb-transition), 
              background var(--sb-transition), 
              color var(--sb-transition),
              opacity var(--sb-transition),
              box-shadow var(--sb-transition);
}

/* Reset stagger translate states when open */
.sb-group-children.open .sb-item {
  opacity: 1;
  left: 10px;
  transform: translateY(0);
}

/* Stagger delay offsets when expanding */
.sb-group-children.open .sb-item:nth-child(1) { transition-delay: 0.03s; }
.sb-group-children.open .sb-item:nth-child(2) { transition-delay: 0.06s; }
.sb-group-children.open .sb-item:nth-child(3) { transition-delay: 0.09s; }
.sb-group-children.open .sb-item:nth-child(4) { transition-delay: 0.12s; }
.sb-group-children.open .sb-item:nth-child(5) { transition-delay: 0.15s; }
.sb-group-children.open .sb-item:nth-child(6) { transition-delay: 0.18s; }
.sb-group-children.open .sb-item:nth-child(7) { transition-delay: 0.21s; }
.sb-group-children.open .sb-item:nth-child(8) { transition-delay: 0.24s; }

.sb-item .sb-icon {
  font-size: 1rem;
  flex-shrink: 0;
  width: 18px;
  text-align: center;
  color: var(--sb-icon-color);
  transition: transform var(--sb-transition), color var(--sb-transition);
}

.sb-item .sb-label {
  flex: 1;
  font-size: 17px;
  transition: opacity var(--sb-transition);
}

/* Child item hover effect */
.sb-item:hover {
  background: var(--sb-parent-hover);
  color: #FFFFFF;
  transform: translateX(6px) !important;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.08);
}

.sb-item:hover .sb-icon {
  color: #FFFFFF;
  transform: scale(1.08);
}

/* Active child styling with load pulse shine */
.sb-item.active {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25) 0%, rgba(29, 78, 216, 0.15) 100%) !important;
  border: 1px solid rgba(37, 99, 235, 0.3) !important;
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.2) !important;
  color: #FFFFFF !important;
  font-weight: 600;
  animation: activeLoadShine 1s cubic-bezier(0.4, 0, 0.2, 1) 1;
}

.sb-item.active .sb-icon {
  color: #FFFFFF !important;
}

/* Active menu item once-off shine pulse keyframes */
@keyframes activeLoadShine {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.6);
  }
  100% {
    box-shadow: 0 0 0 8px rgba(37, 99, 235, 0);
  }
}

/* ── Collapsed Sidebar Improvements ── */
#appSidebar.sb-collapsed .sb-group-children {
  max-height: 0 !important;
  padding: 0 !important;
  margin: 0 !important;
  border: none !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

#appSidebar.sb-collapsed .sb-group-header,
#appSidebar.sb-collapsed .sb-item {
  justify-content: center;
  padding: 10px 0;
  margin: 4px 10px;
  border-radius: 8px;
}

#appSidebar.sb-collapsed .sb-group-header .sb-label,
#appSidebar.sb-collapsed .sb-group-header .sb-arrow,
#appSidebar.sb-collapsed .sb-item .sb-label {
  opacity: 0;
  width: 0;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

#appSidebar.sb-collapsed .sb-group-header .sb-icon,
#appSidebar.sb-collapsed .sb-item .sb-icon {
  width: 24px;
  height: 24px;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sb-icon-color);
  transition: transform var(--sb-transition), box-shadow var(--sb-transition);
}

#appSidebar.sb-collapsed .sb-group-header:hover,
#appSidebar.sb-collapsed .sb-item:hover {
  background: var(--sb-parent-hover);
  transform: none !important;
}

/* Active collapsed indicators */
#appSidebar.sb-collapsed .sb-group-header.active,
#appSidebar.sb-collapsed .sb-item.active {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25) 0%, rgba(29, 78, 216, 0.15) 100%) !important;
  border: 1px solid rgba(37, 99, 235, 0.3) !important;
  color: #FFFFFF !important;
}

/* Active Collapsed Icon Ring Pulse */
#appSidebar.sb-collapsed .sb-group-header.active .sb-icon,
#appSidebar.sb-collapsed .sb-item.active .sb-icon {
  color: #FFFFFF !important;
  animation: activeRingPulse 2s infinite;
  border-radius: 50%;
}

@keyframes activeRingPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.6);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(37, 99, 235, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
  }
}

#appSidebar.sb-collapsed .sb-item.active::before {
  display: none;
}

/* ── Tooltips ── */
.sb-item[data-tip]::after,
.sb-group-header[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  left: calc(var(--sb-collapsed) + 8px);
  top: 50%;
  transform: translateY(-50%) scale(0.92);
  background: #1E293B;
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s var(--sb-transition), 
              transform 0.2s var(--sb-transition);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  z-index: 9999;
  transform-origin: left center;
}

#appSidebar.sb-collapsed .sb-item[data-tip]:hover::after,
#appSidebar.sb-collapsed .sb-group-header[data-tip]:hover::after {
  opacity: 1;
  transform: translateY(-50%) scale(1);
}

/* ── Footer ── */
.sb-footer {
  padding: 14px 18px;
  border-top: 1px solid var(--sb-border);
  border-right: 1px solid var(--sb-border);
  background: var(--sb-bg);
  flex-shrink: 0;
  overflow: hidden;
}

.sb-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sb-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563EB, #1D4ED8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: #FFFFFF;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.sb-user-info {
  overflow: hidden;
  transition: opacity var(--sb-transition);
}

.sb-user-info strong {
  display: block;
  font-size: 0.78rem;
  color: var(--sb-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sb-user-info small {
  font-size: 0.64rem;
  color: var(--sb-text-dim);
}

#appSidebar.sb-collapsed .sb-user-info {
  opacity: 0;
  width: 0;
}

/* ── Role-based Visibility ── */
[data-roles] {
  display: none;
}

/* ── Mobile Overlay ── */
.sb-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  z-index: 1049;
  backdrop-filter: blur(4px);
}

/* ── Mobile Responsive Behavior ── */
@media (max-width: 991px) {
  #appSidebar {
    width: var(--sb-width) !important;
    transform: translateX(-100%);
    transition: transform var(--sb-transition);
    background: var(--sb-bg);
    border-right: 1px solid var(--sb-border);
    pointer-events: auto;
  }

  #appSidebar.sb-mobile-open {
    transform: translateX(0);
  }

  .sb-main,
  .sb-main.sb-main-collapsed {
    margin-left: 0 !important;
    padding-top: 0 !important;
  }

  .sb-overlay.active {
    display: block;
  }

  .sb-toggle {
    display: none;
  }
  
  .sb-header {
    background: linear-gradient(135deg, #00003D 0%, #000066 60%, #000080 100%);
    border-bottom: 2px solid #1A1AAF;
  }
  
  .sb-role-wrap, .sb-nav, .sb-footer {
    border-right: none;
  }
}

.sb-role-current {
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #FFFFFF;
  font-size: 0.82rem;
  font-weight: 600;
}

#appSidebar.sb-collapsed .sb-role-current {
  display: none;
}