/* App shell polish: conservative shared material layer. */
body:not(.appLocked) .appHeader {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.095), rgba(255, 255, 255, 0.035)),
    linear-gradient(145deg, rgba(28, 35, 44, 0.94), rgba(12, 16, 22, 0.96));
  border: 1px solid rgba(220, 231, 242, 0.16);
  border-radius: 18px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 18px 42px rgba(0, 0, 0, 0.26);
  gap: 12px;
  margin-bottom: 14px;
  padding: 10px 12px;
  -webkit-backdrop-filter: blur(18px) saturate(1.08);
  backdrop-filter: blur(18px) saturate(1.08);
}

body:not(.appLocked) .brand {
  flex: 1 1 auto;
  gap: 11px;
  min-width: 188px;
}

body:not(.appLocked) .brandIcon {
  background: #020304;
  border: 1px solid rgba(229, 57, 53, 0.32);
  border-radius: 12px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 8px 18px rgba(0, 0, 0, 0.32);
  height: 48px;
  object-fit: contain;
  padding: 4px;
  width: 48px;
}

body:not(.appLocked) .pageTabs {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  gap: 8px;
  min-width: 0;
}

body:not(.appLocked) .tabButton,
body:not(.appLocked) .officeAccessButton {
  background:
    radial-gradient(circle at 22% 10%, rgba(255, 255, 255, 0.16), transparent 30%),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.035) 0 1px, rgba(0, 0, 0, 0.04) 1px 4px),
    linear-gradient(145deg, color-mix(in srgb, var(--nav-tile-top, #303743) 88%, #ffffff 12%), var(--nav-tile-bottom, #1d222b));
  border-color: color-mix(in srgb, var(--nav-tile-rim, rgba(178, 194, 213, 0.34)) 86%, rgba(255, 255, 255, 0.12));
  border-radius: 11px;
  box-shadow:
    0 10px 20px rgba(0, 0, 0, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.16),
    inset 0 -10px 18px rgba(0, 0, 0, 0.13);
  color: rgba(248, 251, 255, 0.95);
  min-height: 42px;
  outline-offset: 3px;
  overflow: hidden;
  position: relative;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    filter 160ms ease;
}

body:not(.appLocked) .tabButton:not(.active):hover,
body:not(.appLocked) .tabButton:not(.active):focus-visible,
body:not(.appLocked) .officeAccessButton:not(.active):hover,
body:not(.appLocked) .officeAccessButton:not(.active):focus-visible {
  border-color: color-mix(in srgb, var(--nav-tile-rim, rgba(178, 194, 213, 0.34)) 72%, #ffffff);
  box-shadow:
    0 13px 26px rgba(0, 0, 0, 0.27),
    0 0 0 3px color-mix(in srgb, var(--nav-tile-glow, rgba(124, 153, 190, 0.22)) 72%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    inset 0 -10px 18px rgba(0, 0, 0, 0.12);
  filter: saturate(1.1);
  transform: translateY(-1px);
}

body:not(.appLocked) .tabButton.active,
body:not(.appLocked) .officeAccessButton.active {
  box-shadow:
    0 14px 28px color-mix(in srgb, var(--nav-tile-glow, rgba(200, 50, 50, 0.22)) 62%, rgba(0, 0, 0, 0.24)),
    inset 0 1px 0 rgba(255, 255, 255, 0.22),
    inset 0 -3px 0 rgba(255, 255, 255, 0.2);
}

body:not(.appLocked) .moduleHeader,
body:not(.appLocked) .moduleSummaryHeader {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.028)),
    linear-gradient(145deg, rgba(30, 37, 46, 0.9), rgba(14, 18, 24, 0.92));
  border: 1px solid rgba(220, 231, 242, 0.16);
  border-radius: 16px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 12px 30px rgba(0, 0, 0, 0.2);
  gap: 12px;
  min-height: 50px;
  padding: 10px 12px;
}

body:not(.appLocked) .moduleStatus {
  background:
    linear-gradient(180deg, rgba(229, 57, 53, 0.18), rgba(229, 57, 53, 0.06));
  border: 1px solid rgba(229, 57, 53, 0.36);
  border-radius: 999px;
  color: #ffcbc8;
  min-height: 30px;
  padding: 7px 11px;
}

body:not(.appLocked) .primaryModuleAction {
  border-radius: 16px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.14),
    0 14px 28px rgba(0, 0, 0, 0.2);
  min-height: 62px;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    filter 160ms ease;
}

body:not(.appLocked) .primaryModuleAction:not(:disabled):hover,
body:not(.appLocked) .primaryModuleAction:not(:disabled):focus-visible {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 18px 34px rgba(0, 0, 0, 0.25);
  filter: saturate(1.06);
}

@media (max-width: 860px) {
  body:not(.appLocked) .appHeader {
    border-radius: 14px;
    padding: 9px;
  }

  body:not(.appLocked) .brand {
    min-width: 0;
  }

  body:not(.appLocked) .pageTabs {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    width: 100%;
  }

  body:not(.appLocked) .tabButton,
  body:not(.appLocked) .officeAccessButton {
    min-width: 0;
    width: 100%;
  }
}

@media (max-width: 560px) {
  body:not(.appLocked) .appHeader {
    gap: 8px;
    padding: 7px;
  }

  body:not(.appLocked) .brandIcon {
    height: 42px;
    width: 42px;
  }

  body:not(.appLocked) .pageTabs {
    gap: 6px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body:not(.appLocked) .tabButton,
  body:not(.appLocked) .officeAccessButton {
    font-size: 11px;
    min-height: 40px;
  }

  body:not(.appLocked) .moduleHeader,
  body:not(.appLocked) .moduleSummaryHeader {
    align-items: stretch;
    flex-direction: column;
    gap: 8px;
  }

  body:not(.appLocked) .primaryModuleAction {
    grid-template-columns: 34px minmax(0, 1fr);
    min-height: 58px;
    padding: 8px;
  }

  body:not(.appLocked) .moduleStatus {
    max-width: 100%;
    white-space: normal;
    width: fit-content;
  }
}

@media (prefers-reduced-motion: reduce) {
  body:not(.appLocked) .tabButton,
  body:not(.appLocked) .officeAccessButton,
  body:not(.appLocked) .primaryModuleAction {
    transition: none;
  }
}