/* ============================================================
   PWA-INSTALL-EXPERIENCE-A1 — mobile install promotion
   ------------------------------------------------------------
   Compact bottom sheet / elevated banner. Token-driven.
   Stacking: above page content, below mobile nav (z-index 1000),
   below Bootstrap modals / offcanvas, does not race toast (9999).
   ============================================================ */

.pwa-install-promotion {
  position: fixed;
  left: var(--space-3);
  right: var(--space-3);
  /* Sit above mobile dock + home indicator; leave login CTA clear on narrow viewports */
  bottom: calc(var(--nav-mobile-height) + env(safe-area-inset-bottom, 0px) + var(--space-3));
  z-index: 980;
  max-width: 28rem;
  margin-inline: auto;
  pointer-events: none;
}

/* Login shell has no bottom dock — keep banner low but clear of primary submit */
body:has(#login-layout) .pwa-install-promotion {
  bottom: calc(env(safe-area-inset-bottom, 0px) + var(--space-3));
}

/* Reserve scroll space so login CTA can sit above the fixed promotion */
body:has(#login-layout):has(.pwa-install-promotion) #login-layout {
  padding-bottom: calc(14rem + env(safe-area-inset-bottom, 0px));
}

body:has(#login-layout) .pwa-install-promotion__inner {
  padding: var(--space-3);
  gap: var(--space-2);
  padding-bottom: calc(var(--space-3) + env(safe-area-inset-bottom, 0px));
}

.pwa-install-promotion__inner {
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  padding-bottom: calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
  border-radius: var(--radius-lg);
  background: var(--color-bg-elevated);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-lg);
}

.pwa-install-promotion__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

.pwa-install-promotion__body,
.pwa-install-promotion__manual {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  color: var(--color-text-secondary);
}

.pwa-install-promotion__manual {
  margin-top: var(--space-2);
}

.pwa-install-promotion__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  position: relative;
  padding-right: 2.75rem;
}

.pwa-install-promotion__primary,
.pwa-install-promotion__dismiss {
  min-height: 44px;
  min-width: 44px;
  padding-inline: var(--space-4);
}

.pwa-install-promotion__close {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.pwa-install-promotion__close:hover,
.pwa-install-promotion__close:focus-visible {
  color: var(--color-text-primary);
  background: var(--color-bg-hover);
}

.pwa-install-promotion__close:focus-visible,
.pwa-install-promotion__primary:focus-visible,
.pwa-install-promotion__dismiss:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

@media (prefers-reduced-motion: no-preference) {
  .pwa-install-promotion__inner {
    animation: pwa-install-rise var(--duration-base) var(--ease-out) both;
  }
}

@keyframes pwa-install-rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .pwa-install-promotion__inner {
    animation: none;
  }
}

/* Desktop sessions never show the promotion (JS gated); keep CSS defensive. */
@media (min-width: 992px) and (pointer: fine) {
  .pwa-install-promotion[data-install-path] {
    /* no-op visual constraint; eligibility is JS-owned */
  }
}

/* ---------- Instructions dialog ---------- */

.pwa-install-instructions {
  position: fixed;
  inset: 0;
  z-index: 1040;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: var(--space-4);
  padding-bottom: calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
}

.pwa-install-instructions__backdrop {
  position: absolute;
  inset: 0;
  border: none;
  padding: 0;
  margin: 0;
  background: var(--color-bg-overlay);
  cursor: pointer;
}

.pwa-install-instructions__panel {
  position: relative;
  z-index: 1;
  width: min(100%, 24rem);
  max-height: min(80vh, 32rem);
  overflow: auto;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-bg-elevated);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-xl);
}

.pwa-install-instructions__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.pwa-install-instructions__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
}

.pwa-install-instructions__close {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.pwa-install-instructions__close:focus-visible,
.pwa-install-instructions__done:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.pwa-install-instructions__steps {
  margin: 0 0 var(--space-5);
  padding-left: 1.25rem;
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

.pwa-install-instructions__steps li + li {
  margin-top: var(--space-2);
}

.pwa-install-instructions__actions {
  display: flex;
  justify-content: flex-end;
}

.pwa-install-instructions__done {
  min-height: 44px;
  min-width: 44px;
}

/* Environment banner (in-flow top) coexists: promotion is fixed bottom only. */
.environment-banner ~ * .pwa-install-promotion,
body:has(.environment-banner) .pwa-install-promotion {
  /* No z-index escalation needed — different regions. */
}