/* ============================================================
   LPK BEAUTY — LAYOUT CSS
   Version: 1.0
   Sidebar + Header + App shell
   ============================================================ */

/* ============================================================
   BODY LAYOUT
   ============================================================ */
body.has-app-layout {
  background: var(--bg-subtle);
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.app-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-body);
  border-right: 1px solid var(--border);
  z-index: 50;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-slow);
}

/* --- Brand --- */
.sidebar-brand {
  padding: var(--space-4) var(--space-4);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-shrink: 0;
}

.sidebar-brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
  flex: 1;
  color: inherit;
}

.sidebar-brand-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.sidebar-brand-text {
  min-width: 0;
  flex: 1;
}

.sidebar-brand-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.sidebar-brand-sub {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.2;
  margin-top: 2px;
}

.sidebar-close {
  display: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.sidebar-close:hover {
  background: var(--bg-hover);
}

/* --- Nav --- */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3) var(--space-3) var(--space-4);
}

.nav-group {
  margin-bottom: var(--space-4);
}

.nav-group:last-child {
  margin-bottom: 0;
}

.nav-group-label {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0 var(--space-3) var(--space-2);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 8px var(--space-3);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  margin-bottom: 2px;
  position: relative;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--accent-subtle);
  color: var(--text-primary);
  font-weight: 600;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 18px;
  background: var(--accent);
  border-radius: var(--radius-full);
}

.nav-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.nav-item-icon svg {
  width: 18px;
  height: 18px;
}

.nav-item-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Footer --- */
.sidebar-footer {
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-footer-text {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

/* ============================================================
   MAIN AREA
   ============================================================ */
.app-main {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================================
   HEADER
   ============================================================ */
.app-header {
  height: var(--header-height);
  background: var(--bg-body);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-5);
  gap: var(--space-4);
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
  flex: 1;
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.header-menu-btn,
.header-back {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.header-menu-btn:hover,
.header-back:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.header-menu-btn svg,
.header-back svg {
  width: 20px;
  height: 20px;
}

.header-back {
  display: flex;
}

.header-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================================
   USER MENU
   ============================================================ */
.user-menu {
  position: relative;
}

.user-menu-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 5px 8px 5px 5px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.user-menu-trigger:hover {
  background: var(--bg-hover);
  border-color: var(--border);
}

.user-menu-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: var(--accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  letter-spacing: -0.02em;
}

.user-menu-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
  max-width: 140px;
}

.user-menu-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.user-menu-role {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 1px;
}

.user-menu-trigger > svg {
  color: var(--text-muted);
  width: 14px;
  height: 14px;
}

/* --- Dropdown --- */
.user-menu-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: var(--bg-body);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 4px;
  z-index: 60;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: all var(--transition-fast);
}

.user-menu-dropdown.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* ============================================================
   CONTENT
   ============================================================ */
.app-content {
  padding: var(--space-6);
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
  flex: 1;
}

/* ============================================================
   SIDEBAR OVERLAY (mobile)
   ============================================================ */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  z-index: 45;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition), visibility var(--transition);
}

.sidebar-overlay.show {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .app-content {
    padding: var(--space-5) var(--space-4);
  }
}

@media (max-width: 768px) {
  .app-sidebar {
    transform: translateX(-100%);
    box-shadow: var(--shadow-xl);
    width: 280px;
  }
  
  .app-sidebar.open {
    transform: translateX(0);
  }
  
  .sidebar-close {
    display: flex;
  }
  
  .app-main {
    margin-left: 0;
  }
  
  .header-menu-btn {
    display: flex;
  }
  
  .sidebar-overlay {
    display: block;
  }
  
  .user-menu-info {
    display: none;
  }
  
  .user-menu-trigger {
    padding: 4px;
  }
  
  .user-menu-trigger > svg {
    display: none;
  }
  
  .app-header {
    padding: 0 var(--space-4);
  }
  
  .app-content {
    padding: var(--space-4);
  }
}

@media (max-width: 480px) {
  .header-title {
    font-size: 14px;
  }
  }