/* ============================================================
   WAT Sidebar — Modern SaaS Navigation
   ============================================================ */

:root {
  --sb-width: 240px;
  --sb-collapsed: 64px;
  --sb-bg: #111827;
  --sb-border: rgba(255,255,255,0.07);
  --sb-text: #9ca3af;
  --sb-text-hover: #f9fafb;
  --sb-active-bg: rgba(59,130,246,0.12);
  --sb-active-text: #60a5fa;
  --sb-active-bar: #3b82f6;
  --sb-hover-bg: rgba(255,255,255,0.05);
  --sb-section: #4b5563;
  --sb-trans: 0.22s cubic-bezier(0.4,0,0.2,1);
  --sb-content-bg: #f8fafc;
  --sb-radius: 8px;
}

/* ── Base ── */
body {
  display: flex;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  background: var(--sb-content-bg);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Neutralize old theme wrapper */
#page-wrapper {
  display: contents;
}

/* Hide old top nav if rendered */
#header {
  display: none !important;
}

/* Remove transition lock from Phantom theme */
body.is-preload * {
  animation-duration: 0.001ms !important;
  animation-delay: 0s !important;
}

/* ── Sidebar ── */
#sidebar {
  position: fixed;
  left: 0;
  top: 0;
  height: 100vh;
  width: var(--sb-width);
  display: flex;
  flex-direction: column;
  background: var(--sb-bg);
  border-right: 1px solid var(--sb-border);
  z-index: 900;
  overflow: hidden;
  transition: width var(--sb-trans);
}

#sidebar.collapsed {
  width: var(--sb-collapsed);
}

/* ── Main content area ── */
#main-content {
  flex: 1;
  margin-left: var(--sb-width);
  min-height: 100vh;
  transition: margin-left var(--sb-trans);
  overflow-x: hidden;
  background: var(--sb-content-bg);
}

/* Modern CSS has() selector for collapsed state */
body:has(#sidebar.collapsed) #main-content {
  margin-left: var(--sb-collapsed);
}

/* JS fallback class for browsers without :has() support */
body.sidebar-collapsed #main-content {
  margin-left: var(--sb-collapsed);
}

/* ── Sidebar Header ── */
.sb-header {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--sb-border);
  min-height: 64px;
  flex-shrink: 0;
}

.sb-logo-icon {
  width: 34px;
  height: 34px;
  background: #3b82f6;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  letter-spacing: -0.5px;
}

.sb-logo-text {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  white-space: nowrap;
  transition: opacity var(--sb-trans);
}

.sb-logo-text .brand-name {
  font-size: .875rem;
  font-weight: 600;
  color: #f9fafb;
  line-height: 1.2;
}

.sb-logo-text .brand-sub {
  font-size: .68rem;
  color: var(--sb-text);
  line-height: 1.2;
}

.sb-toggle {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--sb-text);
  cursor: pointer;
  padding: .3rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  transition: all var(--sb-trans);
  flex-shrink: 0;
}

.sb-toggle:hover {
  color: var(--sb-text-hover);
  background: var(--sb-hover-bg);
}

.sb-toggle svg {
  width: 18px;
  height: 18px;
  transition: transform var(--sb-trans);
}

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

/* ── Navigation ── */
.sb-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: .5rem 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}

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

.sb-nav::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
}

/* ── Nav Sections ── */
.nav-section {
  padding: .4rem 0;
}

.nav-section + .nav-section {
  border-top: 1px solid var(--sb-border);
}

.nav-section-label {
  font-size: .63rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--sb-section);
  padding: .5rem 1rem .2rem;
  white-space: nowrap;
  overflow: hidden;
  transition: opacity var(--sb-trans);
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.nav-section-label:hover {
  color: var(--sb-text-hover);
}

.nav-section-label::after {
  content: '▾';
  font-size: .65rem;
  transition: transform var(--sb-trans);
  flex-shrink: 0;
  margin-left: .25rem;
}

.nav-section.section-collapsed .nav-section-label::after {
  transform: rotate(-90deg);
}

/* Smooth slide animation via max-height on the body wrapper */
.nav-section-body {
  max-height: 600px;
  overflow: hidden;
  transition: max-height 0.28s cubic-bezier(0.4,0,0.2,1),
              opacity 0.22s ease;
  opacity: 1;
}

.nav-section.section-collapsed .nav-section-body {
  max-height: 0;
  opacity: 0;
}

/* ── Nav Items ── */
.nav-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .5rem .875rem;
  margin: .05rem .5rem;
  border-radius: var(--sb-radius);
  color: var(--sb-text);
  text-decoration: none;
  font-size: .845rem;
  font-weight: 500;
  white-space: nowrap;
  transition: background var(--sb-trans), color var(--sb-trans);
  cursor: pointer;
  border: none;
  background: none;
  width: calc(100% - 1rem);
  box-sizing: border-box;
}

.nav-item:hover {
  background: var(--sb-hover-bg);
  color: var(--sb-text-hover);
  text-decoration: none;
}

.nav-item.active {
  background: var(--sb-active-bg);
  color: var(--sb-active-text);
  box-shadow: inset 3px 0 0 var(--sb-active-bar);
  border-radius: 0 var(--sb-radius) var(--sb-radius) 0;
  margin-left: .5rem;
  padding-left: calc(.875rem - 3px);
  width: calc(100% - 1rem);
}

/* ── Nav Icons & Labels ── */
.nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-label {
  white-space: nowrap;
  overflow: hidden;
  transition: opacity var(--sb-trans), max-width var(--sb-trans);
  max-width: 200px;
}

/* ── Submenu Arrow ── */
.sb-arrow {
  margin-left: auto;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  transition: transform var(--sb-trans);
  color: var(--sb-section);
}

.nav-item.submenu-open .sb-arrow {
  transform: rotate(90deg);
}

/* ── Submenu ── */
.nav-submenu {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}

.nav-submenu.open {
  max-height: 500px;
}

.nav-submenu .nav-item {
  padding-left: 2.5rem;
  font-size: .82rem;
  font-weight: 400;
}

/* ── Collapsed State ── */
#sidebar.collapsed .nav-label,
#sidebar.collapsed .nav-section-label,
#sidebar.collapsed .sb-logo-text,
#sidebar.collapsed .sb-arrow {
  opacity: 0;
  max-width: 0;
  overflow: hidden;
  pointer-events: none;
}

#sidebar.collapsed .nav-item {
  justify-content: center;
  padding: .5rem;
  margin: .05rem auto;
  width: calc(var(--sb-collapsed) - 1rem);
}

#sidebar.collapsed .nav-item.active {
  box-shadow: none;
  padding: .5rem;
  border-radius: var(--sb-radius);
  margin: .05rem auto;
}

#sidebar.collapsed .sb-toggle {
  margin-left: 0;
}

#sidebar.collapsed .sb-header {
  justify-content: center;
  padding: 1.25rem .5rem;
}

#sidebar.collapsed .nav-submenu,
#sidebar.collapsed .nav-section-body {
  display: none !important;
}

/* ── Tooltips on Collapsed Hover ── */
#sidebar.collapsed .nav-item {
  position: relative;
}

#sidebar.collapsed .nav-item[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(var(--sb-collapsed) + 8px);
  top: 50%;
  transform: translateY(-50%);
  background: #1f2937;
  color: #f9fafb;
  font-size: .78rem;
  font-weight: 500;
  padding: .3rem .65rem;
  border-radius: 6px;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  z-index: 1001;
  pointer-events: none;
}

/* ── Footer ── */
.sb-footer {
  border-top: 1px solid var(--sb-border);
  padding: .75rem;
  flex-shrink: 0;
}

.sb-user {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .5rem;
  border-radius: var(--sb-radius);
  transition: background var(--sb-trans);
  overflow: hidden;
  margin-bottom: .25rem;
}

.sb-user:hover {
  background: var(--sb-hover-bg);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .78rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.user-info {
  overflow: hidden;
  flex: 1;
  transition: opacity var(--sb-trans);
}

.user-name {
  font-size: .82rem;
  font-weight: 600;
  color: #f9fafb;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: .7rem;
  color: var(--sb-text);
}

.sb-logout {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .45rem .5rem;
  border-radius: var(--sb-radius);
  color: #ef4444;
  text-decoration: none;
  font-size: .82rem;
  font-weight: 500;
  transition: all var(--sb-trans);
  white-space: nowrap;
  width: 100%;
  box-sizing: border-box;
}

.sb-logout:hover {
  background: rgba(239,68,68,0.1);
  color: #f87171;
  text-decoration: none;
}

/* ── Collapsed Footer ── */
#sidebar.collapsed .user-info,
#sidebar.collapsed .sb-logout .nav-label {
  opacity: 0;
  max-width: 0;
  overflow: hidden;
}

#sidebar.collapsed .sb-user,
#sidebar.collapsed .sb-logout {
  justify-content: center;
}

/* ── Mobile Overlay ── */
#sb-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 850;
  backdrop-filter: blur(3px);
}

#sb-overlay.visible {
  display: block;
}

/* ── Mobile Topbar ── */
#mobile-topbar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--sb-bg);
  border-bottom: 1px solid var(--sb-border);
  align-items: center;
  padding: 0 1rem;
  gap: 1rem;
  z-index: 800;
  box-shadow: 0 1px 8px rgba(0,0,0,0.3);
}

.mobile-menu-btn {
  background: none;
  border: none;
  color: var(--sb-text);
  cursor: pointer;
  padding: .4rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  transition: background var(--sb-trans);
}

.mobile-menu-btn:hover {
  background: var(--sb-hover-bg);
  color: var(--sb-text-hover);
}

.mobile-brand {
  font-size: .9rem;
  font-weight: 600;
  color: #f9fafb;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  #sidebar {
    transform: translateX(-100%);
    transition: transform var(--sb-trans);
    width: var(--sb-width) !important;
    box-shadow: none;
  }

  #sidebar.mobile-open {
    transform: translateX(0);
    box-shadow: 4px 0 32px rgba(0,0,0,0.5);
  }

  #main-content {
    margin-left: 0 !important;
    padding-top: 56px;
  }

  #mobile-topbar {
    display: flex;
  }

  /* Restore labels on mobile even when collapsed class is present */
  #sidebar.collapsed .nav-label,
  #sidebar.collapsed .nav-section-label,
  #sidebar.collapsed .sb-logo-text {
    opacity: 1;
    max-width: 200px;
  }

  #sidebar.collapsed .nav-item {
    justify-content: flex-start;
    padding: .5rem .875rem;
    width: calc(100% - 1rem);
  }

  #sidebar.collapsed .nav-item.active {
    box-shadow: inset 3px 0 0 var(--sb-active-bar);
    padding-left: calc(.875rem - 3px);
  }
}

/* ── Content Overrides (Phantom theme neutralization) ── */
section.wrapper {
  border: none !important;
  box-shadow: none !important;
  border-radius: 0;
  width: 100%;
  max-width: none;
  padding: 0;
}

/* ── Accessibility: Focus Rings ── */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--sb-active-bar);
  outline-offset: 2px;
}