/* PWA 홈 화면 추가 안내 — 모바일 셸 전용 (최소 UI) */

.pwa-install-banner {
  position: fixed;
  left: 50%;
  bottom: calc(0.75rem + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%) translateY(12px);
  width: calc(100% - 1.5rem);
  max-width: calc(var(--max-width) - 1.5rem);
  z-index: 450;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.15rem;
  padding: 0.55rem 0.6rem 0.45rem 0.8rem;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.pwa-install-banner.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.pwa-install-banner__row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  min-width: 0;
}

.pwa-install-banner__text {
  flex: 1;
  margin: 0;
  min-width: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-text-main);
}

.pwa-install-banner__add {
  flex-shrink: 0;
  margin: 0;
  min-height: 2.5rem;
  padding: 0.4rem 0.8rem;
  border: none;
  border-radius: 999px;
  background: var(--color-primary);
  color: #111827;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}

.pwa-install-banner__add:active {
  background: var(--color-primary-active);
}

.pwa-install-banner__close {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--color-text-sub);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
}

.pwa-install-banner__close:active {
  background: #f3f4f6;
}

.pwa-install-banner__never {
  align-self: flex-start;
  margin: 0;
  padding: 0.35rem 0.15rem 0.25rem;
  border: none;
  background: transparent;
  color: #9ca3af;
  font-size: 0.6875rem;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  min-height: 1.75rem;
}

.pwa-install-banner__never:active {
  color: #6b7280;
}

.pwa-install-sheet-root {
  position: fixed;
  inset: 0;
  z-index: 1250;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}

.pwa-install-sheet-root[hidden] {
  display: none !important;
}

body.pwa-install-sheet-open {
  overflow: hidden;
}

.pwa-install-sheet-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.28);
}

.pwa-install-sheet {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: var(--max-width);
  max-height: min(72vh, 34rem);
  margin: 0 auto;
  background: #ffffff;
  border-radius: 20px 20px 0 0;
  box-shadow: 0 -8px 28px rgba(15, 23, 42, 0.12);
  padding: 1rem 1rem calc(1rem + env(safe-area-inset-bottom, 0px));
}

.pwa-install-sheet__title {
  flex-shrink: 0;
  margin: 0 0 0.7rem;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-text-main);
  text-align: center;
}

.pwa-install-sheet__body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 0.9rem;
}

.pwa-install-sheet__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-sub);
  line-height: 1.5;
}

.pwa-install-sheet__step {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
}

.pwa-install-sheet__step + .pwa-install-sheet__step {
  margin-top: 0.6rem;
}

.pwa-install-sheet__step-num {
  flex: 0 0 2rem;
  width: 2rem;
  margin-top: 0.05rem;
  font-weight: 700;
  color: var(--color-text-main);
  text-align: left;
  font-variant-numeric: tabular-nums;
  line-height: 1.45;
}

.pwa-install-sheet__step-text {
  flex: 1 1 auto;
  min-width: 0;
  text-align: left;
  white-space: pre-line;
  line-height: 1.45;
}

.pwa-install-sheet__note {
  margin: 0.85rem 0 0;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  background: #f8fafc;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-sub);
  line-height: 1.45;
  white-space: pre-line;
}

.pwa-install-sheet__note[hidden] {
  display: none !important;
}

.pwa-install-sheet__actions {
  flex-shrink: 0;
  display: flex;
  justify-content: center;
}

.pwa-install-sheet__confirm {
  width: 100%;
  margin: 0;
  padding: 0.7rem 1rem;
  border: none;
  border-radius: 12px;
  background: var(--color-primary);
  color: #111827;
  font-size: 0.9375rem;
  font-weight: 700;
  cursor: pointer;
}

.pwa-install-sheet__confirm:active {
  background: var(--color-primary-active);
}