/* PWA Master – Public Styles */
:root {
  --pwam-primary:    #1a73e8;
  --pwam-bg:         #ffffff;
  --pwam-text:       #202124;
  --pwam-radius:     12px;
  --pwam-shadow:     0 4px 24px rgba(0,0,0,.18);
  --pwam-transition: .25s cubic-bezier(.4,0,.2,1);
}

/* ── Install Banner ──────────────────────────────────────────────────────── */
.pwam-install-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 99990;
  background: var(--pwam-bg);
  border-top: 3px solid var(--pwam-primary);
  box-shadow: 0 -4px 20px rgba(0,0,0,.12);
  padding: 12px 16px;
  transform: translateY(100%);
  transition: transform var(--pwam-transition);
  will-change: transform;
}
.pwam-install-banner:not([hidden]) {
  transform: translateY(0);
}
.pwam-install-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 700px;
  margin: 0 auto;
  gap: 12px;
}
.pwam-install-info {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}
.pwam-install-icon {
  border-radius: 12px;
  flex-shrink: 0;
  width: 48px; height: 48px;
  object-fit: contain;
}
.pwam-install-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.pwam-install-title {
  font-size: .95rem;
  font-weight: 600;
  color: var(--pwam-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pwam-install-desc {
  font-size: .8rem;
  color: #5f6368;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pwam-install-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.pwam-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--pwam-transition), opacity var(--pwam-transition);
  line-height: 1;
  white-space: nowrap;
}
.pwam-btn-primary {
  background: var(--pwam-primary);
  color: #fff;
}
.pwam-btn-primary:hover { opacity: .88; }
.pwam-btn-ghost {
  background: transparent;
  color: var(--pwam-text);
  border: 1px solid #dadce0;
}
.pwam-btn-ghost:hover { background: #f1f3f4; }

/* ── Push Prompt Dialog ───────────────────────────────────────────────────── */
.pwam-push-prompt {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 99991;
  width: 320px;
  background: var(--pwam-bg);
  border-radius: var(--pwam-radius);
  box-shadow: var(--pwam-shadow);
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px) scale(.97);
  transition: opacity var(--pwam-transition), transform var(--pwam-transition);
}
.pwam-push-prompt:not([hidden]) {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}
.pwam-push-icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  background: #e8f0fe;
  border-radius: 50%;
  margin: 0 auto 16px;
}
.pwam-push-bell { font-size: 1.6rem; }
.pwam-push-title {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--pwam-text);
  text-align: center;
}
.pwam-push-msg {
  margin: 0 0 20px;
  font-size: .85rem;
  color: #5f6368;
  text-align: center;
  line-height: 1.5;
}
.pwam-push-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pwam-push-actions .pwam-btn {
  width: 100%;
  padding: 10px;
}

/* ── Toast ────────────────────────────────────────────────────────────────── */
.pwam-toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  z-index: 99995;
  background: #202124;
  color: #fff;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: .875rem;
  max-width: 90vw;
  text-align: center;
  opacity: 0;
  transition: opacity var(--pwam-transition), transform var(--pwam-transition);
  pointer-events: none;
}
.pwam-toast--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

/* ── Dark Mode ────────────────────────────────────────────────────────────── */
@media (prefers-color-scheme: dark) {
  :root {
    --pwam-bg:   #1e1e2e;
    --pwam-text: #e2e2e2;
  }
  .pwam-btn-ghost { border-color: #3c3c4c; color: var(--pwam-text); }
  .pwam-btn-ghost:hover { background: #2a2a3a; }
  .pwam-install-desc, .pwam-push-msg { color: #9aa0a6; }
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .pwam-push-prompt { width: calc(100vw - 32px); right: 16px; bottom: 16px; }
  .pwam-install-inner { flex-wrap: wrap; }
}