/* ─── SCHOOLBETA INSTALL NOTIFICATION (top, theme-aware) ─────────────────
   Namespaced .sb-install-* selectors, defensive !important on the
   properties most likely to be clobbered by page-wide resets. Theme is
   driven entirely by attribute selectors on [data-theme] — SchoolBeta's
   existing theme system — so switching theme updates this instantly with
   no extra JS.
   ────────────────────────────────────────────────────────────────────── */

div.sb-install-banner {
  display: block !important;
  position: fixed !important;
  visibility: visible !important;
  pointer-events: auto !important;
  z-index: 999999 !important;

  top: 12px;
  left: 12px;
  right: 12px;
  margin: 0 !important;
  margin-left: auto !important;
  margin-right: auto !important;
  padding-top: env(safe-area-inset-top, 0px);

  max-width: 460px;

  background: #ffffff !important;
  color: #111110 !important;
  border: 1px solid #e8e6e1;
  border-radius: 16px;
  box-shadow:
    0 16px 40px rgba(0, 0, 0, 0.18),
    0 4px 10px rgba(0, 0, 0, 0.08);

  opacity: 0 !important;
  transform: translateY(-140%);
  transition:
    transform 0.34s cubic-bezier(0.2, 0.8, 0.2, 1),
    opacity 0.28s ease;
  will-change: transform, opacity;
}

div.sb-install-banner.sb-install-banner--visible {
  opacity: 1 !important;
  transform: translateY(0);
}

/* ── Dark theme — follows SchoolBeta's existing [data-theme="dark"] ──── */
[data-theme="dark"] div.sb-install-banner {
  background: #111110 !important;
  color: #f4f3f0 !important;
  border-color: #2a2a28;
  box-shadow:
    0 16px 40px rgba(0, 0, 0, 0.6),
    0 4px 10px rgba(0, 0, 0, 0.35);
}

div.sb-install-banner .sb-install-header {
  display: flex !important;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 14px 0 14px;
}

img.sb-install-icon {
  display: block !important;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  flex-shrink: 0;
}

div.sb-install-banner .sb-install-titlewrap {
  flex: 1 1 auto;
  min-width: 0;
}

p.sb-install-title {
  display: block !important;
  font-family: "Sora", "Inter", sans-serif !important;
  font-size: 15px !important;
  font-weight: 700 !important;
  line-height: 1.3 !important;
  letter-spacing: -0.01em;
  color: #111110 !important;
  margin: 0 0 3px 0 !important;
}

[data-theme="dark"] p.sb-install-title {
  color: #ffffff !important;
}

p.sb-install-sub {
  display: block !important;
  font-family: "Inter", sans-serif !important;
  font-size: 12.5px !important;
  font-weight: 400 !important;
  line-height: 1.5 !important;
  color: #6b7280 !important;
  margin: 0 !important;
}

[data-theme="dark"] p.sb-install-sub {
  color: #a09f99 !important;
}

p.sb-install-sub strong {
  color: #111110 !important;
  font-weight: 600 !important;
}

[data-theme="dark"] p.sb-install-sub strong {
  color: #f4f3f0 !important;
}

svg.sb-inline-icon {
  display: inline-block !important;
  vertical-align: -2px;
  margin: 0 1px;
}

button.sb-install-close {
  display: flex !important;
  align-items: center;
  justify-content: center;
  position: static;
  flex-shrink: 0;
  width: 28px !important;
  height: 28px !important;
  min-width: 28px;
  padding: 0 !important;
  margin: 0 !important;
  border: none !important;
  border-radius: 8px;
  background: transparent !important;
  color: #6b7280 !important;
  cursor: pointer !important;
  pointer-events: auto !important;
  transition:
    background 0.12s ease,
    color 0.12s ease;
}

button.sb-install-close:hover {
  background: #f0eee9 !important;
  color: #111110 !important;
}

[data-theme="dark"] button.sb-install-close {
  color: #a09f99 !important;
}

[data-theme="dark"] button.sb-install-close:hover {
  background: #232321 !important;
  color: #ffffff !important;
}

div.sb-install-banner .sb-install-actions {
  display: flex !important;
  justify-content: flex-end;
  padding: 12px 14px 14px 14px;
}

button.sb-install-btn {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  min-width: 108px;
  box-sizing: border-box;
  position: static;
  pointer-events: auto !important;
  cursor: pointer !important;

  font-family: "Inter", sans-serif !important;
  font-size: 13.5px !important;
  font-weight: 700 !important;
  line-height: 1 !important;
  text-align: center;

  padding: 10px 20px !important;
  margin: 0 !important;
  border: none !important;
  border-radius: 10px !important;

  color: #0b3b22 !important;
  background: #25d366 !important;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transition:
    background 0.15s ease,
    transform 0.15s ease;
}

button.sb-install-btn:hover {
  background: #1fbd5a !important;
  transform: translateY(-1px);
}

button.sb-install-btn:disabled {
  opacity: 0.6 !important;
  pointer-events: none !important;
  cursor: default !important;
  transform: none;
}

/* iOS variant has no action button — header only, tighter bottom padding */
div.sb-install-banner--ios .sb-install-header {
  padding-bottom: 14px;
}

/* ─── Mobile: full-width button feels more natural at very small sizes ── */
@media (max-width: 420px) {
  div.sb-install-banner .sb-install-actions {
    justify-content: stretch;
  }

  button.sb-install-btn {
    width: 100% !important;
  }
}

/* ─── Desktop: compact card, top-right, never full width ──────────────── */
@media (min-width: 900px) {
  div.sb-install-banner {
    left: auto;
    right: 20px;
    top: 20px;
    width: 400px;
    max-width: 400px;
    margin-left: 0 !important;
    margin-right: 0 !important;
    transform: translateY(-140%);
  }

  div.sb-install-banner.sb-install-banner--visible {
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  div.sb-install-banner {
    transition: opacity 0.01ms !important;
    transform: none !important;
  }

  div.sb-install-banner:not(.sb-install-banner--visible) {
    opacity: 0 !important;
  }
}