@layer layout {

.app-header {
  position: relative;
  z-index: 1100;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  height: var(--header-height);
  padding: 0 var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
  color: var(--color-text);
  text-decoration: none;
}

.brand:hover {
  color: var(--color-text);
}

.brand-mark {
  width: 36px;
  height: 36px;
  max-width: none;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.2;
}

.brand-name {
  font-size: var(--text-base);
  font-weight: 700;
  white-space: nowrap;
}

.brand-subtitle {
  color: var(--color-text-subtle);
  font-size: var(--text-xs);
  white-space: nowrap;
}

.search {
  position: relative;
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
  max-width: 560px;
  height: 42px;
  padding: 0 var(--space-1) 0 var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-muted);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

.search:focus-within {
  border-color: var(--color-primary);
  background: var(--color-surface);
  box-shadow: var(--focus-ring);
}

.search-icon {
  color: var(--color-text-subtle);
}

.search input {
  flex: 1 1 auto;
  min-width: 0;
  height: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: var(--text-sm);
}

.search input::placeholder {
  color: var(--color-text-subtle);
}

.search input::-webkit-search-cancel-button {
  display: none;
}

.header-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
}

.app-body {
  display: flex;
  height: calc(100vh - var(--header-height));
  height: calc(100dvh - var(--header-height));
  min-height: 0;
}

.sidebar {
  position: relative;
  z-index: 900;
  display: flex;
  flex-direction: column;
  flex: 0 0 var(--panel-width);
  width: var(--panel-width);
  overflow-y: auto;
  overscroll-behavior: contain;
  border-right: 1px solid var(--color-border);
  background: var(--color-surface);
}

.sidebar-overlay {
  position: fixed;
  inset: var(--header-height) 0 0;
  z-index: 950;
  display: none;
  background: rgba(7, 29, 65, 0.48);
  backdrop-filter: blur(2px);
}

.map-region {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  background: var(--color-bg);
}

#map {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.map-status {
  position: absolute;
  bottom: 12px;
  left: 50%;
  z-index: 800;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  transform: translateX(-50%);
}

.status-item {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.status-label {
  color: var(--color-text-subtle);
  font-family: var(--font-sans);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.map-loading {
  position: absolute;
  top: var(--space-4);
  left: 50%;
  z-index: 850;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  transform: translateX(-50%);
}

.toast-region {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: 1300;
  display: grid;
  gap: var(--space-2);
  width: min(360px, calc(100vw - 24px));
  pointer-events: none;
}

@media (max-width: 1024px) {
  .brand-text {
    display: none;
  }

  .sidebar {
    position: fixed;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    z-index: 1000;
    width: min(340px, 88vw);
    transform: translateX(-102%);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-panel);
  }

  .sidebar.is-open {
    transform: translateX(0);
  }

  .sidebar-overlay.is-open {
    display: block;
  }

  .map-status {
    bottom: 10px;
  }
}

@media (max-width: 640px) {
  .app-header {
    gap: var(--space-2);
    padding: 0 var(--space-2);
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .search {
    height: 38px;
    padding-left: var(--space-2);
  }

  .search input {
    font-size: var(--text-base);
  }

  .map-status {
    display: none;
  }

  .toast-region {
    top: var(--space-2);
    right: var(--space-2);
  }
}

}