/* Layout - Header and page structure */

.app-header {
  height: var(--header-height);
  background: var(--color-bg);
  display: flex;
  align-items: center;
  border-bottom: var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-page);
}

/* Logo */
.header-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.header-logo-img {
  height: 24px;
  width: auto;
}

/* Navigation */
.header-nav {
  display: flex;
  gap: 32px;
  margin-left: auto;
  margin-right: 40px;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: 24px 0;
  position: relative;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-link:hover {
  color: var(--color-text-primary);
}

.nav-link--active {
  color: var(--color-text-primary);
  border-bottom-color: var(--color-accent);
}

/* User section */
.header-user {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #E5E7EB;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  color: var(--color-text-primary);
  cursor: pointer;
  user-select: none;
}

.user-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: var(--color-bg);
  border: var(--border);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 4px 0;
  min-width: 160px;
  display: none;
  z-index: 200;
}

.user-menu--open {
  display: block;
}

.user-menu-item {
  display: block;
  width: 100%;
  padding: 8px 16px;
  font-size: 14px;
  color: var(--color-text-primary);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
}

.user-menu-item:hover {
  background: var(--color-filter-bg);
}

/* Page content */
.page-content {
  padding: var(--spacing-page);
  padding-top: 24px;
}