:root {
  --sidebar-width: 272px;
  --sidebar-collapsed-width: 84px;
  --shell-bg: #f5f5f6;
  --shell-surface: #ffffff;
  --shell-surface-strong: #ffffff;
  --shell-border: #e7e7ea;
  --shell-shadow: 0 6px 20px rgba(15, 23, 42, 0.04);
  --sidebar-surface: #fafafb;
  --sidebar-border: #e7e7ea;
  --sidebar-text-strong: #111111;
  --sidebar-text-muted: #7a7a82;
  --sidebar-ghost: #f1f1f3;
  --sidebar-ghost-strong: #ebebef;
  --sidebar-active: #ededf0;
  --sidebar-active-border: #d7d7de;
}

html,
body {
  min-height: 100%;
}

body.app-shell-body {
  background: var(--shell-bg);
  color: var(--text-primary);
  font-family: var(--font-family-sans);
  margin: 0;
  overflow-x: hidden;
  padding-top: 0 !important;
}

.app-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-width);
  background: var(--sidebar-surface);
  border-right: 1px solid var(--sidebar-border);
  box-shadow: none;
  color: var(--sidebar-text-strong);
  display: flex;
  flex-direction: column;
  transition: width var(--transition-normal), transform var(--transition-normal);
  z-index: var(--z-fixed);
}

.app-sidebar-brand,
.app-sidebar-nav {
  position: relative;
  z-index: 1;
}

.app-sidebar-brand {
  padding: 0.9rem 0.9rem 0.55rem;
  border-bottom: 0;
}

.app-brand-header {
  align-items: center;
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  min-height: 36px;
  position: relative;
}

.app-brand-link {
  align-items: center;
  color: inherit;
  display: flex;
  gap: 0.4rem;
  justify-content: center;
  max-width: 100%;
  text-decoration: none;
  min-width: 0;
  width: 100%;
}

.app-brand-link:hover {
  color: inherit;
  text-decoration: none;
}

.app-brand-mark {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  display: inline-flex;
  flex-shrink: 0;
  justify-content: center;
  padding: 0;
  max-width: 100%;
  width: 172px;
  height: 44px;
  overflow: hidden;
}

.app-brand-mark img {
  display: block;
  height: 100%;
  width: 100%;
  max-width: 100%;
  object-fit: contain;
  object-position: center;
}

.app-sidebar-brand .app-sidebar-icon-btn {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}

.app-brand-copy {
  display: none;
}

.app-brand-name {
  color: var(--sidebar-text-strong);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0;
}

.app-brand-caption {
  color: var(--sidebar-text-muted);
  font-size: 0.64rem;
  letter-spacing: 0;
  text-transform: uppercase;
}

.app-sidebar-nav {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0.35rem 0.7rem 0.85rem;
}

.app-sidebar-icon-btn,
.app-mobile-menu-btn {
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--shell-border);
  border-radius: 10px;
  color: #3a3a42;
  display: inline-flex;
  height: 36px;
  justify-content: center;
  width: 36px;
}

.app-mobile-menu-btn {
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: var(--z-fixed);
}

.app-sidebar-nav::-webkit-scrollbar {
  width: 8px;
}

.app-sidebar-nav::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.28);
  border-radius: 999px;
}

.app-sidebar-overlay {
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(2px);
  inset: 0;
  opacity: 0;
  pointer-events: none;
  position: fixed;
  transition: opacity var(--transition-fast);
  z-index: calc(var(--z-fixed) - 1);
}

.app-shell-main {
  display: flex;
  flex-direction: column;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--transition-normal);
}

.app-main {
  flex: 1;
  padding: 0.85rem 1rem 0.75rem;
}

.app-main-body {
  min-height: calc(100vh - 52px);
}

.app-footer {
  color: var(--text-muted);
  padding: 0 1.15rem 0.85rem;
}

.app-footer-inner {
  align-items: center;
  background: transparent;
  border-top: 1px solid var(--shell-border);
  border-radius: 0;
  display: flex;
  justify-content: space-between;
  padding: 0.7rem 0;
}

.app-footer p {
  color: #8a8a92;
  font-size: 0.72rem;
  margin: 0;
}

.app-nav {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  min-height: 100%;
}

.app-nav-user {
  background: #ffffff;
  border: 1px solid var(--shell-border);
  border-radius: 12px;
  padding: 0.7rem;
}

.app-nav-user-head {
  align-items: center;
  display: flex;
  gap: 0.55rem;
}

.app-nav-user-identity {
  align-items: center;
  display: flex;
  gap: 0.65rem;
  min-width: 0;
  width: 100%;
}

.app-nav-user-avatar {
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--shell-border);
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex;
  flex-shrink: 0;
  height: 32px;
  justify-content: center;
  padding: 0;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
  width: 32px;
}

.app-nav-user-avatar:hover {
  border-color: #cfd0d7;
}

.app-nav-user-avatar-media {
  align-items: center;
  color: #4d4d56;
  display: inline-flex;
  height: 100%;
  justify-content: center;
  width: 100%;
}

.app-nav-user-avatar-media i {
  font-size: 1rem;
}

.app-nav-user-avatar-media .profile-picture {
  border-radius: 50%;
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.app-nav-user-copy {
  flex: 1;
  min-width: 0;
}

.app-nav-user-label {
  color: var(--sidebar-text-muted);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 0.12rem;
  text-transform: uppercase;
}

.app-nav-user-name {
  color: var(--sidebar-text-strong);
  font-size: 0.82rem;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-nav-user-subtext {
  color: #73737b;
  font-size: 0.72rem;
  margin-top: 0.08rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-nav-user-actions {
  align-items: center;
  display: flex;
  gap: 0.35rem;
  justify-content: flex-end;
  margin-left: auto;
  flex-shrink: 0;
}

.app-nav-user-manage {
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--shell-border);
  border-radius: 10px;
  color: #484850;
  display: inline-flex;
  font-size: 0.74rem;
  font-weight: 600;
  justify-content: center;
  min-width: 32px;
  min-height: 32px;
  padding: 0;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  width: 32px;
}

.app-nav-user-manage:hover {
  background: #f5f5f7;
  border-color: #d9d9de;
  color: #2f2f36;
  text-decoration: none;
}

.app-nav-sections {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0.65rem;
}

.app-nav-section {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
}

.app-nav-section-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  padding: 0 0.3rem 0.22rem;
}

.app-nav-section-button {
  align-items: center;
  appearance: none;
  background: transparent;
  border: 0;
  border-radius: 8px;
  color: inherit;
  cursor: pointer;
  display: flex;
  gap: 0.5rem;
  justify-content: space-between;
  padding: 0.15rem 0;
  text-align: left;
  width: 100%;
}

.app-nav-section-button:hover .app-nav-section-title,
.app-nav-section-button:hover .app-nav-section-chevron {
  color: #4a4a52;
}

.app-nav-section-title {
  color: var(--sidebar-text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.app-nav-section-chevron {
  color: var(--sidebar-text-muted);
  display: inline-flex;
  flex-shrink: 0;
  font-size: 0.72rem;
}

.app-nav-section-chevron i {
  transition: transform var(--transition-fast);
}

.app-nav-section.is-open .app-nav-section-chevron i {
  transform: rotate(180deg);
}

.app-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
}

.app-nav-group-head {
  align-items: center;
  display: grid;
  gap: 0.25rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.app-nav-link,
.app-nav-toggle,
.app-nav-link-button,
.app-nav-logout-button {
  appearance: none;
  border: 0;
  cursor: pointer;
  font-family: inherit;
}

.app-nav-link,
.app-nav-link-button,
.app-nav-logout-button {
  align-items: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 10px;
  color: #43434b;
  display: flex;
  gap: 0.5rem;
  min-width: 0;
  padding: 0.1rem 0.56rem;
  position: relative;
  text-align: left;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast);
  width: 100%;
}

.app-nav-link:hover,
.app-nav-link-button:hover,
.app-nav-logout-button:hover {
  background: var(--sidebar-ghost);
  border-color: transparent;
  box-shadow: none;
  color: #15151a;
  text-decoration: none;
}

.app-nav-link.is-active,
.app-nav-link-button.is-active {
  background: var(--sidebar-active);
  border-color: transparent;
  box-shadow: none;
  color: #111111;
}

.app-nav-link.is-open:not(.is-active),
.app-nav-link-button.is-open:not(.is-active) {
  background: #f2f2f4;
  color: #111111;
}

.app-nav-icon-wrap {
  align-items: center;
  background: transparent;
  border-radius: 8px;
  display: inline-flex;
  flex-shrink: 0;
  height: 1.2rem;
  justify-content: center;
  width: 1.2rem;
}

.app-nav-link.is-active .app-nav-icon-wrap,
.app-nav-link-button.is-active .app-nav-icon-wrap {
  background: transparent;
}

.app-nav-icon {
  color: #70707a;
  font-size: 0.82rem;
  text-align: center;
  width: 0.9rem;
}

.app-nav-icon-img {
  height: 1.5rem;
  object-fit: contain;
  width: 1.25rem;
}

.app-nav-link-copy {
  flex: 1;
  min-width: 0;
}

.app-nav-link-title {
  color: inherit;
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-nav-badge {
  align-items: center;
  background: #dc3545;
  border-radius: 999px;
  color: #fff;
  display: inline-flex;
  flex-shrink: 0;
  font-size: 0.65rem;
  font-weight: 700;
  height: 1.1rem;
  justify-content: center;
  letter-spacing: 0.02em;
  line-height: 1;
  margin-left: auto;
  min-width: 1.1rem;
  padding: 0 0.4rem;
}

.app-nav-toggle {
  align-items: center;
  background: transparent;
  border-radius: 8px;
  color: var(--sidebar-text-muted);
  display: inline-flex;
  height: 1.45rem;
  justify-content: center;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  width: 1.45rem;
}

.app-nav-toggle:hover {
  background: #f1f1f4;
  color: #2b2b31;
}

.app-nav-toggle i {
  transition: transform var(--transition-fast);
}

.app-nav-group.is-open .app-nav-toggle i {
  transform: rotate(180deg);
}

.app-nav-submenu {
  display: grid;
  gap: 0.06rem;
  padding: 0.08rem 0 0 1rem;
}

.app-nav-submenu[hidden] {
  display: none !important;
}

.app-nav-sublink {
  background: transparent;
  border-radius: 8px;
  min-height: 2rem;
  padding-block: 0.24rem;
}

.app-nav-sublink .app-nav-icon-wrap {
  height: 1.1rem;
  width: 1.1rem;
}

.app-nav-utility {
  border-top: 1px solid var(--sidebar-border);
  display: grid;
  gap: 0.18rem;
  margin-top: auto;
  padding-top: 0.55rem;
}

.app-nav-logout-button {
  color: #595961;
}

.app-nav-logout-button:hover {
  background: #f5f5f7;
  color: #1b1b20;
}

.app-nav-empty {
  background: #ffffff;
  border: 1px solid var(--shell-border);
  border-radius: 14px;
  color: #111111;
  padding: 0.95rem;
}

.app-nav-empty-title {
  color: var(--sidebar-text-strong);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.app-nav-empty-text {
  color: var(--sidebar-text-muted);
  font-size: 0.76rem;
  line-height: 1.45;
  margin-bottom: 0.8rem;
}

.app-nav-empty-action {
  align-items: center;
  background: #f4f4f6;
  border: 1px solid var(--shell-border);
  border-radius: 10px;
  color: #19191f;
  display: inline-flex;
  font-size: 0.76rem;
  font-weight: 600;
  gap: 0.45rem;
  padding: 0.55rem 0.75rem;
  text-decoration: none;
}

.app-nav-empty-action:hover {
  background: #ededf1;
  color: #111111;
  text-decoration: none;
}

.profile-picture-preview {
  align-items: center;
  background: #f8fafc;
  border: 3px solid var(--sparrow-green);
  border-radius: 50%;
  display: flex;
  height: 120px;
  justify-content: center;
  margin: 0 auto;
  overflow: hidden;
  width: 120px;
}

.profile-picture-preview img {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.profile-picture-preview i {
  color: var(--sparrow-green);
}

body.sidebar-collapsed .app-sidebar {
  width: var(--sidebar-collapsed-width);
}

body.sidebar-collapsed .app-shell-main {
  margin-left: var(--sidebar-collapsed-width);
}

body.sidebar-collapsed .app-sidebar-brand {
  padding-inline: 0.6rem;
}

body.sidebar-collapsed .app-brand-link {
  justify-content: center;
}

body.sidebar-collapsed .app-brand-mark {
  width: 56px;
  height: 32px;
  border-radius: 0;
  padding: 0;
}

body.sidebar-collapsed .app-brand-mark img {
  width: 56px;
  height: auto;
  max-width: 56px;
}

body.sidebar-collapsed .app-brand-copy,
body.sidebar-collapsed .app-nav-user-copy,
body.sidebar-collapsed .app-nav-section-header,
body.sidebar-collapsed .app-nav-link-copy,
body.sidebar-collapsed .app-nav-toggle,
body.sidebar-collapsed .app-nav-submenu {
  display: none !important;
}

body.sidebar-collapsed .app-nav-user {
  padding: 0.45rem;
}

body.sidebar-collapsed .app-nav-user-head,
body.sidebar-collapsed .app-nav-user-identity,
body.sidebar-collapsed .app-nav-user-actions,
body.sidebar-collapsed .app-nav-utility {
  justify-content: center;
}

body.sidebar-collapsed .app-nav-user-head {
  gap: 0.35rem;
}

body.sidebar-collapsed .app-nav-link,
body.sidebar-collapsed .app-nav-link-button,
body.sidebar-collapsed .app-nav-logout-button {
  justify-content: center;
  padding-inline: 0.45rem;
}

@media (max-width: 991.98px) {
  .app-sidebar {
    transform: translateX(-100%);
    width: min(86vw, 300px);
  }

  .app-shell-main {
    margin-left: 0;
  }

  .app-main {
    padding: 3.8rem 0.85rem 0.85rem;
  }

  .app-footer {
    padding: 0 0.85rem 0.85rem;
  }

  .app-footer-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.35rem;
  }

  body.sidebar-expanded .app-sidebar {
    transform: translateX(0);
  }

  body.sidebar-expanded .app-sidebar-overlay {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 767.98px) {
  .app-nav-user-head,
  .app-nav-user-identity {
    align-items: flex-start;
    flex-direction: column;
  }

  .app-nav-user-actions {
    justify-content: flex-start;
    margin-left: 0;
    width: 100%;
  }

  .app-nav-utility {
    gap: 0.35rem;
  }
}

@media print {
  .app-sidebar,
  .app-sidebar-overlay,
  .app-mobile-menu-btn,
  .app-footer {
    display: none !important;
  }

  .app-shell-main {
    margin-left: 0 !important;
  }

  .app-main {
    padding: 0 !important;
  }
}