/* PWA install — премиальная модалка установки приложения */

.pwa-install-overlay {
  position: fixed;
  inset: 0;
  z-index: 20001;
  display: none;
  place-items: center;
  padding: clamp(12px, 4vw, 28px);
  background: rgba(0, 0, 0, 0.52);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  opacity: 0;
  transition: opacity 0.28s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.pwa-install-overlay.open {
  display: grid;
  opacity: 1;
}

.pwa-install-overlay.closing {
  opacity: 0;
  pointer-events: none;
}

.pwa-install-modal {
  position: relative;
  width: min(420px, 100%);
  max-height: min(90vh, 720px);
  overflow: auto;
  border-radius: 24px;
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
  background: color-mix(in srgb, var(--card-bg) 92%, transparent);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 24px 80px rgba(0, 0, 0, 0.45),
    0 8px 24px rgba(0, 0, 0, 0.2);
  transform: translateY(16px) scale(0.96);
  opacity: 0;
  transition:
    transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 0.28s ease;
}

.pwa-install-overlay.open:not(.closing) .pwa-install-modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.pwa-install-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: none;
  border-radius: 50%;
  background: color-mix(in srgb, var(--text) 8%, transparent);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.pwa-install-close:hover {
  background: color-mix(in srgb, var(--text) 14%, transparent);
  color: var(--text);
}

.pwa-install-close svg {
  width: 14px;
  height: 14px;
}

.pwa-install-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 36px 28px 20px;
}

.pwa-install-icon-wrap {
  position: relative;
  width: 88px;
  height: 88px;
  margin-bottom: 18px;
}

.pwa-install-icon-wrap::before {
  content: '';
  position: absolute;
  inset: -12px;
  border-radius: 28px;
  background: radial-gradient(circle at 50% 40%, color-mix(in srgb, var(--accent) 28%, transparent), transparent 68%);
  animation: pwaIconGlow 2.8s ease-in-out infinite;
}

.pwa-install-icon {
  position: relative;
  width: 88px;
  height: 88px;
  border-radius: 22px;
  object-fit: cover;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.12) inset,
    0 12px 32px rgba(0, 0, 0, 0.28);
  background: var(--card-bg);
}

.pwa-install-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: color-mix(in srgb, var(--text) 7%, transparent);
}

.pwa-install-badge svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.pwa-install-share-hint {
  display: flex;
  justify-content: center;
  margin: 4px 0 16px;
  animation: pwaShareBounce 2.2s ease-in-out infinite;
}

.pwa-install-share-hint svg {
  width: 52px;
  height: 52px;
  color: #007aff;
  filter: drop-shadow(0 6px 16px rgba(0, 122, 255, 0.28));
}

@keyframes pwaShareBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.pwa-install-title {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.pwa-install-subtitle {
  margin: 0;
  font-size: 14px;
  line-height: 1.45;
  color: var(--text-secondary);
  max-width: 30ch;
}

.pwa-install-body {
  padding: 0 24px 8px;
}

.pwa-install-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pwa-install-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--text) 5%, transparent);
  border: 1px solid color-mix(in srgb, var(--text) 6%, transparent);
  animation: pwaStepIn 0.42s cubic-bezier(0.34, 1.2, 0.64, 1) both;
}

.pwa-install-step:nth-child(1) { animation-delay: 0.04s; }
.pwa-install-step:nth-child(2) { animation-delay: 0.1s; }
.pwa-install-step:nth-child(3) { animation-delay: 0.16s; }

.pwa-install-step-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(145deg, var(--accent), color-mix(in srgb, var(--accent) 70%, #000));
  box-shadow: 0 4px 12px color-mix(in srgb, var(--accent) 35%, transparent);
}

.pwa-install-step-text {
  margin: 0;
  padding-top: 3px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--text);
}

.pwa-install-step-text strong {
  font-weight: 650;
  color: var(--text);
}

.pwa-install-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 24px 24px;
}

.pwa-install-btn {
  width: 100%;
  min-height: 48px;
  border: none;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: transform 0.16s ease, opacity 0.16s ease, box-shadow 0.16s ease;
}

.pwa-install-btn:active {
  transform: scale(0.98);
}

.pwa-install-btn--primary {
  color: #fff;
  background: linear-gradient(145deg, var(--accent), color-mix(in srgb, var(--accent) 82%, #000));
  box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 32%, transparent);
}

.pwa-install-btn--primary:hover {
  opacity: 0.92;
  box-shadow: 0 10px 28px color-mix(in srgb, var(--accent) 38%, transparent);
}

.pwa-install-btn--ghost {
  color: var(--text-secondary);
  background: transparent;
  min-height: 40px;
}

.pwa-install-btn--ghost:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--text) 6%, transparent);
}

.pwa-install-note {
  margin: 0;
  padding: 0 24px 20px;
  font-size: 12px;
  line-height: 1.5;
  text-align: center;
  color: var(--text-secondary);
}

/* Браузерные акценты */
.pwa-install-overlay[data-browser='edge'] .pwa-install-step-num {
  background: linear-gradient(145deg, #0078d4, #005a9e);
  box-shadow: 0 4px 12px rgba(0, 120, 212, 0.35);
}

.pwa-install-overlay[data-browser='opera'] .pwa-install-step-num {
  background: linear-gradient(145deg, #ff1b2d, #cc0014);
  box-shadow: 0 4px 12px rgba(255, 27, 45, 0.3);
}

.pwa-install-overlay[data-browser='firefox'] .pwa-install-step-num {
  background: linear-gradient(145deg, #ff7139, #e66000);
  box-shadow: 0 4px 12px rgba(255, 113, 57, 0.32);
}

.pwa-install-overlay[data-browser='safari'] .pwa-install-step-num {
  background: linear-gradient(145deg, #007aff, #005ecb);
  box-shadow: 0 4px 12px rgba(0, 122, 255, 0.32);
}

.pwa-install-overlay[data-browser='chrome'] .pwa-install-step-num {
  background: linear-gradient(145deg, #4285f4, #3367d6);
  box-shadow: 0 4px 12px rgba(66, 133, 244, 0.32);
}

@keyframes pwaIconGlow {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.06); }
}

@keyframes pwaStepIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .pwa-install-overlay,
  .pwa-install-modal,
  .pwa-install-step,
  .pwa-install-icon-wrap::before,
  .pwa-install-share-hint {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }

  .pwa-install-overlay.open:not(.closing) .pwa-install-modal {
    transform: none;
  }
}

@media (max-width: 420px) {
  .pwa-install-hero {
    padding-top: 32px;
  }

  .pwa-install-body,
  .pwa-install-actions {
    padding-left: 18px;
    padding-right: 18px;
  }
}