/*
 * PE-Class common foundation v11644
 *
 * This file intentionally does not restyle existing screens.
 * Screen migrations must opt in with a peF* class so the legacy UI keeps
 * exactly the same appearance while the common layer is introduced.
 */

:root {
  /* Shared color vocabulary */
  --pe-f-color-ink: #17324d;
  --pe-f-color-muted: #6f8295;
  --pe-f-color-line: #d7e3ee;
  --pe-f-color-surface: #ffffff;
  --pe-f-color-canvas: #f5f9fd;
  --pe-f-color-primary: #168ee0;
  --pe-f-color-success: #22b573;
  --pe-f-color-danger: #ef4b3f;
  --pe-f-color-warning: #f59e0b;

  /* Shared spacing and shape vocabulary */
  --pe-f-space-1: 4px;
  --pe-f-space-2: 8px;
  --pe-f-space-3: 12px;
  --pe-f-space-4: 16px;
  --pe-f-space-5: 20px;
  --pe-f-space-6: 24px;
  --pe-f-space-8: 32px;
  --pe-f-radius-sm: 8px;
  --pe-f-radius-md: 12px;
  --pe-f-radius-lg: 18px;
  --pe-f-control-height: 44px;
  /* Shared application shell contract */
  --pe-f-header-height: 88px;
  --pe-f-header-padding-inline: 18px;
  --pe-f-header-gap: 18px;
  --pe-f-logo-size: 62px;
  --pe-f-side-width: 292px;
  --pe-f-side-padding: 16px;
  --pe-f-main-padding: 14px;
  --pe-f-app-padding: 18px;
  --pe-f-shell-canvas: #f4f7fb;
  --pe-f-shell-line: #d9e1ea;

  /* Login screen contract */
  --pe-f-login-canvas: #2d4358;
  --pe-f-login-card-width: 400px;
  --pe-f-login-card-radius: 12px;
  --pe-f-login-card-padding-block-start: 34px;
  --pe-f-login-card-padding-inline: 40px;
  --pe-f-login-card-padding-block-end: 40px;
  --pe-f-login-avatar-size: 132px;
  --pe-f-login-accent: #2f9be7;
  --pe-f-login-button: #2e455b;
  --pe-f-login-field-height: 46px;

  /* Shared layer vocabulary */
  --pe-f-z-header: 100;
  --pe-f-z-sheet: 800;
  --pe-f-z-modal: 1000;
  --pe-f-z-toast: 1200;

  /* Runtime viewport values. JavaScript refreshes these without layout writes. */
  --pe-f-vw: 100vw;
  --pe-f-vh: 100vh;
}

/* Opt-in layout contracts for screen-by-screen migration. */
.peFStack {
  display: flex;
  flex-direction: column;
  gap: var(--pe-f-stack-gap, var(--pe-f-space-4));
  min-width: 0;
}

.peFCluster {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--pe-f-cluster-gap, var(--pe-f-space-3));
  min-width: 0;
}

.peFGrid {
  display: grid;
  grid-template-columns: repeat(var(--pe-f-grid-columns, 1), minmax(0, 1fr));
  gap: var(--pe-f-grid-gap, var(--pe-f-space-4));
  min-width: 0;
}

.peFScrollRegion {
  min-width: 0;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.peFModalSurface {
  position: relative;
  width: min(var(--pe-f-modal-width, 720px), calc(var(--pe-f-vw) - 32px));
  max-height: calc(var(--pe-f-vh) - var(--pe-f-modal-safe-gap, 32px));
  min-width: 0;
  min-height: 0;
  overflow: auto;
  border-radius: var(--pe-f-radius-lg);
  background: var(--pe-f-color-surface);
  -webkit-overflow-scrolling: touch;
}

.peFVisuallyHidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 920px) {
  :root {
    --pe-f-login-card-padding-block-start: 28px;
    --pe-f-login-card-padding-inline: 22px;
    --pe-f-login-card-padding-block-end: 28px;
    --pe-f-login-avatar-size: 110px;
  }
}