/* KLM — shared viewport + iOS PWA safe-area baseline */
:root {
  --klm-safe-t: env(safe-area-inset-top, 0px);
  --klm-safe-r: env(safe-area-inset-right, 0px);
  --klm-safe-b: env(safe-area-inset-bottom, 0px);
  --klm-safe-l: env(safe-area-inset-left, 0px);
  --klm-vv-top: 0px;
  --klm-vv-bottom: 0px;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

html,
body {
  min-height: 100%;
  min-height: 100dvh;
}

@supports (height: 100dvh) {
  html,
  body {
    height: 100dvh;
  }
}

/* Standalone / home-screen: keep base UI scale at 100% unless an app overrides */
@media (display-mode: standalone), (display-mode: fullscreen) {
  :root {
    --klm-ui-scale: 1;
  }
}

.klm-shell {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  max-height: 100dvh;
  overflow: hidden;
  padding-left: var(--klm-safe-l);
  padding-right: var(--klm-safe-r);
}

.klm-shell-header {
  flex: 0 0 auto;
  padding-top: var(--klm-safe-t);
}

.klm-shell-main {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.klm-shell-footer,
.klm-shell-nav {
  flex: 0 0 auto;
  padding-bottom: max(0.5rem, var(--klm-safe-b));
}