// =============================================================================
// MAIN LAYOUT - World-Class Government Blockchain Platform
// DBIM v3.0 Compliant | GIGW 3.0 Accessible
// =============================================================================

// Variables
$sidebar-width: 280px;
$sidebar-collapsed-width: 72px;
$header-height: 64px;
$footer-height: 48px;
$transition-speed: 250ms;

// =============================================================================
// APP SHELL
// =============================================================================
.app-shell {
  display: flex;
  min-height: 100vh;
  background-color: var(--dbim-white);
}

// =============================================================================
// SIDEBAR
// =============================================================================
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: $sidebar-width;
  background: linear-gradient(180deg, var(--dbim-blue-dark) 0%, #130640 100%);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: width $transition-speed ease;
  box-shadow: 4px 0 24px rgba(29, 10, 105, 0.15);

  &.sidebar-collapsed {
    width: $sidebar-collapsed-width;

    .sidebar-header {
      padding: 16px 12px;
    }

    .logo-section {
      justify-content: center;
    }

    .emblem-container {
      width: 40px;
      height: 40px;
    }

    .nav-item {
      padding: 12px;
      justify-content: center;

      .nav-icon {
        margin-right: 0;
      }
    }

    .nav-section-title {
      display: none;
    }
  }
}

// Sidebar Header
.sidebar-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.emblem-container {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all $transition-speed ease;

  .goa-emblem {
    width: 36px;
    height: 36px;
    object-fit: contain;
    filter: brightness(0) invert(1);
  }

  .emblem-fallback {
    mat-icon {
      font-size: 28px;
      width: 28px;
      height: 28px;
      color: white;
    }
  }
}

.logo-text {
  display: flex;
  flex-direction: column;
  overflow: hidden;

  .govt-text {
    font-size: 14px;
    font-weight: 600;
    color: white;
    white-space: nowrap;
  }

  .platform-text {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.7);
    white-space: nowrap;
  }
}

// Sidebar Navigation
.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;

  &::-webkit-scrollbar {
    width: 4px;
  }

  &::-webkit-scrollbar-track {
    background: transparent;
  }

  &::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
  }
}

.nav-section {
  margin-bottom: 24px;

  &:last-child {
    margin-bottom: 0;
  }
}

.nav-section-title {
  display: block;
  padding: 8px 16px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  margin-bottom: 4px;
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: all 150ms ease;
  cursor: pointer;

  &:hover {
    background: rgba(255, 255, 255, 0.08);
    color: white;

    .nav-icon {
      transform: scale(1.05);
    }
  }

  &.active {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.3) 0%, rgba(139, 92, 246, 0.2) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);

    .nav-icon {
      background: linear-gradient(135deg, var(--crypto-indigo) 0%, var(--crypto-purple) 100%);

      mat-icon {
        color: white;
      }
    }
  }

  .nav-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    transition: all 150ms ease;

    mat-icon {
      font-size: 20px;
      width: 20px;
      height: 20px;
      color: rgba(255, 255, 255, 0.9);
    }
  }

  .nav-label {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
  }

  .nav-badge {
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 10px;
    background: var(--dbim-error);
    color: white;
    font-size: 11px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;

    &.pulse {
      animation: pulse 2s infinite;
    }
  }
}

// Sidebar Footer
.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.blockchain-status {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
}

.blockchain-status-compact {
  display: flex;
  justify-content: center;
  padding: 12px;
}

.status-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;

  &.online {
    background: var(--dbim-success);
    box-shadow: 0 0 8px var(--dbim-success);
    animation: pulse 2s infinite;
  }

  &.offline {
    background: var(--dbim-error);
  }
}

.status-text {
  display: flex;
  flex-direction: column;

  .status-label {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.5);
  }

  .status-value {
    font-size: 13px;
    font-weight: 500;
    color: white;
  }
}

// =============================================================================
// MAIN WRAPPER
// =============================================================================
.main-wrapper {
  flex: 1;
  margin-left: $sidebar-width;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left $transition-speed ease;

  .sidebar-collapsed + & {
    margin-left: $sidebar-collapsed-width;
  }
}

// =============================================================================
// TOP HEADER
// =============================================================================
.top-header {
  height: $header-height;
  background: var(--dbim-white);
  border-bottom: 1px solid rgba(29, 10, 105, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.95);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.menu-toggle {
  color: var(--dbim-grey-3);

  &:hover {
    color: var(--dbim-blue-dark);
  }
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--dbim-grey-2);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-action {
  color: var(--dbim-grey-2);

  &:hover {
    color: var(--dbim-blue-dark);
    background: rgba(29, 10, 105, 0.05);
  }
}

// User Profile
.user-profile {
  margin-left: 8px;
}

.user-button {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 12px 6px 6px;
  border-radius: 50px;
  background: transparent;

  &:hover {
    background: rgba(29, 10, 105, 0.05);
  }
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  color: white;
  flex-shrink: 0;
}

.user-avatar-large {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  color: white;
  flex-shrink: 0;
}

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

  .user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--dbim-brown);
    line-height: 1.2;
  }

  .user-role {
    font-size: 11px;
    color: var(--dbim-grey-2);
  }
}

.dropdown-arrow {
  font-size: 18px;
  color: var(--dbim-grey-2);
}

// User Menu
.user-menu-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
}

.user-details {
  display: flex;
  flex-direction: column;

  .user-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--dbim-brown);
  }

  .user-email {
    font-size: 12px;
    color: var(--dbim-grey-2);
    margin-top: 2px;
  }

  .user-badge {
    display: inline-block;
    padding: 2px 8px;
    margin-top: 6px;
    background: rgba(29, 10, 105, 0.1);
    color: var(--dbim-blue-dark);
    font-size: 10px;
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    width: fit-content;
  }
}

.logout-btn {
  color: var(--dbim-error) !important;
}

// Notification Menu
.notification-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
}

.notification-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--dbim-brown);
}

.mark-read-btn {
  font-size: 12px;
}

.notification-list {
  max-height: 300px;
  overflow-y: auto;
}

.notification-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  transition: background 150ms ease;

  &:hover {
    background: rgba(29, 10, 105, 0.03);
  }

  &.unread {
    background: rgba(13, 110, 253, 0.05);
  }
}

.notification-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;

  &.success {
    background: rgba(25, 135, 84, 0.1);
    color: var(--dbim-success);
  }

  &.info {
    background: rgba(13, 110, 253, 0.1);
    color: var(--dbim-info);
  }

  &.warning {
    background: rgba(255, 193, 7, 0.15);
    color: #B8860B;
  }

  &.error {
    background: rgba(220, 53, 69, 0.1);
    color: var(--dbim-error);
  }

  mat-icon {
    font-size: 18px;
    width: 18px;
    height: 18px;
  }
}

.notification-content {
  flex: 1;
  display: flex;
  flex-direction: column;

  .notification-text {
    font-size: 13px;
    color: var(--dbim-brown);
    line-height: 1.4;
  }

  .notification-time {
    font-size: 11px;
    color: var(--dbim-grey-2);
    margin-top: 4px;
  }
}

.view-all-btn {
  text-align: center;
  font-size: 13px;
  color: var(--dbim-info) !important;
}

// =============================================================================
// MAIN CONTENT
// =============================================================================
.main-content {
  flex: 1;
  padding: 24px;
  background: #f8f9fc;
  min-height: calc(100vh - #{$header-height} - #{$footer-height});
}

// =============================================================================
// FOOTER - DBIM Compliant
// =============================================================================
.main-footer {
  height: $footer-height;
  background: var(--dbim-blue-dark);
  color: white;
  display: flex;
  align-items: center;
}

.footer-content {
  width: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-text {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
}

.footer-divider {
  color: rgba(255, 255, 255, 0.3);
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-link {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 150ms ease;

  &:hover {
    color: white;
  }
}

// =============================================================================
// ANIMATIONS
// =============================================================================
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

// =============================================================================
// RESPONSIVE
// =============================================================================
@media (max-width: 1024px) {
  .sidebar {
    width: $sidebar-collapsed-width;

    .sidebar-header {
      padding: 16px 12px;
    }

    .logo-section {
      justify-content: center;
    }

    .emblem-container {
      width: 40px;
      height: 40px;
    }

    .logo-text,
    .nav-label,
    .nav-section-title {
      display: none;
    }

    .nav-item {
      padding: 12px;
      justify-content: center;

      .nav-icon {
        margin-right: 0;
      }
    }

    .blockchain-status {
      padding: 12px;
      justify-content: center;

      .status-text {
        display: none;
      }
    }
  }

  .main-wrapper {
    margin-left: $sidebar-collapsed-width;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: $sidebar-width;

    &:not(.sidebar-collapsed) {
      transform: translateX(0);
    }

    .logo-text,
    .nav-label,
    .nav-section-title {
      display: block;
    }

    .nav-item {
      padding: 12px 16px;
      justify-content: flex-start;

      .nav-icon {
        margin-right: 12px;
      }
    }
  }

  .main-wrapper {
    margin-left: 0;
  }

  .top-header {
    padding: 0 16px;
  }

  .main-content {
    padding: 16px;
  }

  .footer-content {
    flex-direction: column;
    gap: 8px;
    padding: 8px 16px;
    text-align: center;
  }

  .footer-right {
    gap: 12px;
  }
}