/* ============================================================================
   WF-00-02 Common Layout Shell - CSS Styles
   제주 스마트도시 데이터허브 공통 레이아웃 쉘
   ============================================================================ */

/* ========== Layout Structure ========== */
#app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--bg-color-secondary);
}

/* ========== GNB (Global Navigation Bar) ========== */
#gnb {
  position: sticky;
  top: 0;
  height: 64px;
  background-color: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-md);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-sticky);
}

.gnb-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-decoration: none;
  color: var(--text-color);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-body-lg);
  min-width: 240px;
}

.gnb-logo-icon {
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: var(--font-weight-bold);
}

.gnb-menus {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex: 1;
  justify-content: center;
}

.gnb-menu-item {
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  color: var(--text-color-secondary);
  font-size: var(--font-body-md);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.gnb-menu-item:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.gnb-menu-item.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.gnb-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.gnb-notification {
  position: relative;
  cursor: pointer;
  color: var(--text-color-secondary);
  transition: color 0.2s ease;
}

.gnb-notification:hover {
  color: var(--color-primary);
}

.notification-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  background-color: var(--color-danger);
  color: white;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: var(--font-weight-bold);
}

.gnb-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease;
}

.gnb-user:hover {
  background-color: var(--color-gray-100);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-body-md);
}

.user-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.user-name {
  font-size: var(--font-body-md);
  font-weight: var(--font-weight-semibold);
  color: var(--text-color);
}

.user-role {
  font-size: var(--font-body-sm);
  color: var(--text-color-secondary);
}

/* ========== Main Layout Container ========== */
.layout-container {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ========== LNB (Local Navigation Bar) ========== */
#lnb {
  width: 280px;
  background-color: var(--bg-color);
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  transition: width 0.3s ease;
  z-index: var(--z-fixed);
}

#lnb.collapsed {
  width: 64px;
}

.lnb-menu-list {
  list-style: none;
  padding: var(--spacing-md) 0;
  flex: 1;
}

.lnb-menu-item {
  display: block;
}

.lnb-menu-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-md);
  color: var(--text-color-secondary);
  text-decoration: none;
  font-size: var(--font-body-md);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.lnb-menu-link:hover {
  background-color: var(--color-gray-100);
  color: var(--color-primary);
}

.lnb-menu-link.active {
  background-color: var(--color-primary);
  color: white;
  font-weight: var(--font-weight-semibold);
}

.lnb-menu-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lnb-menu-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
}

#lnb.collapsed .lnb-menu-label {
  display: none;
}

.lnb-toggle-btn {
  padding: var(--spacing-md);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-color-secondary);
  font-size: 20px;
  transition: color 0.2s ease;
  align-self: center;
  margin-top: auto;
}

.lnb-toggle-btn:hover {
  color: var(--color-primary);
}

/* ========== Content Area ========== */
#content {
  flex: 1;
  overflow-y: auto;
  overflow-x: auto;
  display: flex;
  flex-direction: column;
}

.breadcrumb {
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
  font-size: var(--font-body-sm);
  color: var(--text-color-secondary);
}

.breadcrumb-item {
  display: inline-block;
}

.breadcrumb-item:not(:last-child)::after {
  content: '/';
  margin: 0 var(--spacing-sm);
}

.breadcrumb-item a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.page-header {
  padding: var(--spacing-lg) var(--spacing-lg);
  background-color: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
}

.page-title {
  font-size: var(--font-heading-md);
  font-weight: var(--font-weight-bold);
  color: var(--text-color);
  margin-bottom: var(--spacing-sm);
}

.page-subtitle {
  font-size: var(--font-body-md);
  color: var(--text-color-secondary);
}

.page-content {
  padding: var(--spacing-lg);
  flex: 1;
  overflow-y: auto;
  overflow-x: auto;
}

/* ========== Footer ========== */
#footer {
  background-color: var(--bg-color);
  border-top: 1px solid var(--border-color);
  padding: 0 var(--spacing-lg);
  font-size: var(--font-body-sm);
  color: var(--text-color-secondary);
}

/* RFP 근거 영역 */
.footer-rfp {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.footer-rfp-label {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  padding: 2px 8px;
  background-color: var(--color-primary);
  color: white;
  border-radius: var(--radius-sm);
}

.rfp-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  background-color: #EFF6FF;
  border: 1px solid #BFDBFE;
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: #1E40AF;
  white-space: nowrap;
}

.rfp-tag strong {
  font-weight: var(--font-weight-bold);
  color: #1D4ED8;
}

/* 하단 정보 영역 */
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 40px;
}

.footer-copyright {
  flex: 1;
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-link {
  color: var(--text-color-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.footer-version {
  color: var(--text-color-secondary);
  font-size: var(--font-body-sm);
}

/* ========== Scrollbar Styles ========== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--color-gray-300);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-400);
}

/* ========== Responsive Design ========== */
@media (max-width: 1024px) {
  #lnb {
    position: fixed;
    left: 0;
    top: 64px;
    height: calc(100vh - 64px);
    box-shadow: var(--shadow-lg);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  #lnb.open {
    transform: translateX(0);
  }

  .layout-container {
    position: relative;
  }

  #content {
    width: 100%;
  }
}

@media (max-width: 768px) {
  #gnb {
    padding: 0 var(--spacing-md);
  }

  .gnb-menus {
    display: none;
  }

  .user-info {
    display: none;
  }

  .page-header {
    padding: var(--spacing-md) var(--spacing-md);
  }

  .page-content {
    padding: var(--spacing-md);
  }

  .page-content table {
    overflow-x: auto;
    display: block;
  }

  /* Grid single-column fallback */
  .page-content [class*="grid"] {
    display: flex;
    flex-direction: column;
  }

  #footer {
    padding: var(--spacing-md);
  }

  .footer-rfp {
    flex-wrap: wrap;
    gap: 4px;
    padding-bottom: var(--spacing-sm);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    height: auto;
  }

  .footer-copyright {
    order: 1;
  }

  .footer-links {
    order: 2;
    flex-wrap: wrap;
  }

  .footer-version {
    order: 3;
  }
}