html {
  --lumo-font-family: "Segoe UI", Arial, sans-serif;
  --lumo-primary-color: #126a7a;
  --lumo-primary-color-50pct: rgba(18, 106, 122, 0.5);
  --lumo-primary-color-10pct: rgba(18, 106, 122, 0.1);
  --lumo-primary-text-color: #0d5968;
  --lumo-success-color: #2f7d58;
  --lumo-error-color: #b42318;
  --lumo-border-radius-s: 4px;
  --lumo-border-radius-m: 6px;
  --lumo-border-radius-l: 8px;
  --kescon-bg: #f4f7f9;
  --kescon-surface: #ffffff;
  --kescon-ink: #102a33;
  --kescon-muted: #607583;
  --kescon-border: #d9e4e9;
  --kescon-sidebar: #0f2f39;
  --kescon-sidebar-active: #f2fbfd;
  --kescon-sidebar-text: #f7fcff;
  --kescon-sidebar-muted: #c9dce3;
  --kescon-blue: #2b6cb0;
  --kescon-green: #2f7d58;
  --kescon-amber: #b7791f;
}

body {
  background: var(--kescon-bg);
  color: var(--kescon-ink);
}

vaadin-app-layout::part(navbar) {
  min-height: 64px;
  background: var(--kescon-surface);
  border-bottom: 1px solid var(--kescon-border);
  box-shadow: 0 2px 12px rgba(16, 42, 51, 0.06);
}

vaadin-app-layout::part(drawer) {
  background: var(--kescon-sidebar);
  border-right: 0;
  color: white;
}

vaadin-drawer-toggle {
  color: var(--kescon-ink);
}

.app-header {
  width: 100%;
  min-height: 64px;
  padding: 0 20px 0 10px;
  box-sizing: border-box;
}

.app-brand,
.app-user {
  display: flex;
  align-items: center;
}

.app-logo-mark {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: #126a7a;
  color: #ffffff;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0;
}

.app-title {
  margin: 0;
  color: var(--kescon-ink);
  font-size: 1.1rem;
  font-weight: 750;
  line-height: 1.15;
  letter-spacing: 0;
}

.app-subtitle,
.view-subtitle,
.card-note,
.metric-note {
  color: var(--kescon-muted);
  font-size: 0.85rem;
}


.logout-button {
  color: #0f4f5b;
  background: #e8f4f6;
  border: 1px solid #b8d7df;
}

.logout-button:hover {
  color: #07313a;
  background: #d7eef2;
}

.logout-button vaadin-icon {
  color: currentColor;
}
.drawer-title {
  padding: 18px 18px 10px;
  color: var(--kescon-sidebar-muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

.app-nav-scroll {
  height: 100%;
}

vaadin-side-nav {
  padding: 4px 10px 18px;
}

vaadin-side-nav-item::part(content) {
  min-height: 42px;
  margin: 2px 0;
  border-radius: 6px;
  color: var(--kescon-sidebar-text);
}

vaadin-side-nav-item::part(content):hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

vaadin-side-nav-item[selected]::part(content) {
  background: var(--kescon-sidebar-active);
  color: #07313a;
  font-weight: 700;
}
vaadin-side-nav-item::part(prefix) {
  color: var(--kescon-sidebar-text);
}

vaadin-side-nav-item vaadin-icon {
  width: 20px;
  height: 20px;
  padding: 5px;
  border-radius: 6px;
  color: var(--kescon-sidebar-text);
  background: rgba(255, 255, 255, 0.18);
  box-sizing: content-box;
}

vaadin-side-nav-item:hover vaadin-icon {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.28);
}

vaadin-side-nav-item[selected]::part(prefix) {
  color: #07313a;
}

vaadin-side-nav-item[selected] vaadin-icon {
  color: #07313a;
  background: #ffffff;
}

.view-shell {
  padding: 24px;
  gap: 18px;
  background: var(--kescon-bg);
  box-sizing: border-box;
}

.view-header {
  width: 100%;
  padding: 4px 0 2px;
}

.view-title {
  margin: 0;
  color: var(--kescon-ink);
  font-size: 1.75rem;
  font-weight: 760;
  line-height: 1.2;
  letter-spacing: 0;
}

.metrics-grid,
.content-grid {
  width: 100%;
  display: grid;
  gap: 16px;
}

.metrics-grid {
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

.content-grid {
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
}

.metric-card,
.panel,
.form-panel,
.table-panel,
.import-panel {
  background: var(--kescon-surface);
  border: 1px solid var(--kescon-border);
  border-radius: 8px;
  box-shadow: 0 4px 18px rgba(16, 42, 51, 0.06);
  box-sizing: border-box;
}

.metric-card {
  padding: 18px;
  gap: 8px;
}

.metric-icon {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: #d7eef2;
  color: #064b59;
}


.metric-icon vaadin-icon {
  color: #064b59;
}
.metric-title {
  color: var(--kescon-muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.metric-value {
  color: var(--kescon-ink);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.panel,
.form-panel,
.table-panel,
.import-panel {
  padding: 18px;
}

.panel-title {
  margin: 0;
  color: var(--kescon-ink);
  font-size: 1.15rem;
  font-weight: 730;
}

.action-bar {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.table-toolbar {
  width: 100%;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.customer-result-count {
  color: var(--kescon-muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

.network-legend {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  padding: 12px 16px;
  background: var(--kescon-surface);
  border: 1px solid var(--kescon-border);
  border-radius: 8px;
  box-sizing: border-box;
}

.network-legend-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
}

.network-legend-heading {
  color: var(--kescon-ink);
  font-size: 0.85rem;
  font-weight: 750;
}

.network-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--kescon-muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

.network-legend-dot {
  width: 12px;
  height: 12px;
  border: 1px solid rgba(16, 42, 51, 0.3);
  border-radius: 50%;
}

.network-legend-line {
  width: 24px;
  height: 3px;
  border-radius: 2px;
}

.network-canvas {
  width: 100%;
  height: 700px;
  background: var(--kescon-surface);
  border: 1px solid var(--kescon-border);
  border-radius: 8px;
  box-sizing: border-box;
}

.network-canvas.network-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--kescon-muted);
}

vaadin-button {
  border-radius: 6px;
  font-weight: 700;
}

vaadin-button[theme~="primary"] {
  background: var(--lumo-primary-color);
  color: white;
}

vaadin-button[theme~="error"] {
  color: var(--lumo-error-color);
}
vaadin-button vaadin-icon {
  color: currentColor;
}

vaadin-button[theme~="primary"] vaadin-icon {
  color: #ffffff;
}

vaadin-grid {
  border: 1px solid var(--kescon-border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--kescon-surface);
}

vaadin-grid::part(header-cell) {
  background: #edf3f6;
  color: #274653;
  font-weight: 750;
}

vaadin-grid::part(body-cell) {
  color: var(--kescon-ink);
}

vaadin-grid::part(row):hover {
  background: rgba(18, 106, 122, 0.05);
}

vaadin-text-field,
vaadin-text-area,
vaadin-combo-box,
vaadin-select,
vaadin-date-picker {
  --vaadin-input-field-border-width: 1px;
  --vaadin-input-field-border-color: var(--kescon-border);
  --vaadin-input-field-background: #ffffff;
  --vaadin-input-field-border-radius: 6px;
}

vaadin-upload {
  border-radius: 8px;
  border-color: var(--kescon-border);
  background: #fbfdfe;
}

.download-link {
  color: #064b59;
  font-weight: 700;
  text-decoration: none;
}

.download-link:hover {
  text-decoration: underline;
}

@media (max-width: 720px) {
  .view-shell {
    padding: 14px;
  }

  .app-subtitle,
  .app-user-name {
    display: none;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  .view-title {
    font-size: 1.4rem;
  }

  .network-canvas {
    height: 520px;
  }
}