.pbpwa-install {
  --pbpwa-color: #E63946;
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 99999;
  max-width: 480px;
  margin: 0 auto;
  background: #ffffff;
  border: 1px solid rgba(230, 57, 70, 0.25);
  border-radius: 16px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15), 0 4px 8px rgba(0, 0, 0, 0.06);
  padding: 14px 18px 16px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.pbpwa-install.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.pbpwa-install__inner {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  position: relative;
}

.pbpwa-install__close {
  position: absolute;
  top: -8px;
  right: -10px;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  font-size: 18px;
  line-height: 1;
  color: #666;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
}

.pbpwa-install__close:hover {
  color: var(--pbpwa-color);
  border-color: var(--pbpwa-color);
}

.pbpwa-install__icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.pbpwa-install__content {
  flex: 1;
  min-width: 0;
}

.pbpwa-install__title {
  display: block;
  font-size: 1em;
  font-weight: 700;
  color: #1a1a1a;
  margin: 0 0 4px;
}

.pbpwa-install__intro {
  margin: 0 0 10px;
  font-size: 0.88em;
  color: #555;
  line-height: 1.4;
}

.pbpwa-install__actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pbpwa-install__btn {
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 0.9em;
  font-weight: 600;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  font-family: inherit;
}

.pbpwa-install__btn:hover {
  transform: translateY(-1px);
}

.pbpwa-install__btn--primary {
  background: var(--pbpwa-color);
  color: #fff;
  border-color: var(--pbpwa-color);
}

.pbpwa-install__btn--primary:hover {
  box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
}

.pbpwa-install__btn--ghost {
  background: #fff;
  color: #444;
  border-color: rgba(0, 0, 0, 0.12);
}

@media (prefers-color-scheme: dark) {
  .pbpwa-install {
    background: #1f2024;
    border-color: rgba(230, 57, 70, 0.4);
    color: #f4f4f5;
  }
  .pbpwa-install__title { color: #f4f4f5; }
  .pbpwa-install__intro { color: #d4d4d8; }
  .pbpwa-install__close { background: #2a2b30; color: #aaa; border-color: rgba(255, 255, 255, 0.1); }
  .pbpwa-install__btn--ghost { background: #2a2b30; color: #f4f4f5; border-color: rgba(255, 255, 255, 0.15); }
}

@media (max-width: 420px) {
  .pbpwa-install { left: 8px; right: 8px; bottom: 8px; padding: 12px 14px; }
  .pbpwa-install__icon { width: 48px; height: 48px; }
  .pbpwa-install__title { font-size: 0.95em; }
}

@media print {
  .pbpwa-install { display: none !important; }
}

/* =========================================================
   PREMIUM banner (variante riche avec mockup device + bénéfices)
   Active quand <div class="pbpwa-install pbpwa-install--premium">
========================================================= */
.pbpwa-install--premium {
  max-width: 540px;
  padding: 0;
  overflow: hidden;
  border-radius: 22px;
  border: none;
  background: linear-gradient(180deg, #ffffff 0%, #fff5f5 100%);
  box-shadow: 0 24px 60px rgba(254, 2, 1, 0.18), 0 8px 24px rgba(15, 23, 42, 0.08);
}
.pbpwa-install--premium .pbpwa-install__inner {
  flex-direction: column;
  align-items: stretch;
  gap: 0;
}

/* HERO avec device mockup */
.pbpwa-install--premium .pbpwa-install__hero {
  position: relative;
  background: linear-gradient(135deg, #fe0201 0%, #b30000 60%, #800000 100%);
  padding: 24px 24px 32px;
  overflow: hidden;
  isolation: isolate;
}
.pbpwa-install--premium .pbpwa-install__hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(240, 165, 0, 0.5), transparent 60%);
  z-index: 0;
}
.pbpwa-install--premium .pbpwa-install__hero::after {
  content: "";
  position: absolute;
  inset: auto auto -30% -10%;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15), transparent 65%);
  z-index: 0;
}

.pbpwa-install--premium .pbpwa-install__device {
  position: relative;
  width: 120px;
  height: 200px;
  margin: 0 auto;
  background: #0f172a;
  border-radius: 22px;
  padding: 6px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), inset 0 0 0 2px rgba(255, 255, 255, 0.08);
  z-index: 1;
  animation: pbpwa-float 3.6s ease-in-out infinite;
}
@keyframes pbpwa-float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50%      { transform: translateY(-8px) rotate(2deg); }
}
.pbpwa-install--premium .pbpwa-install__device-notch {
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 14px;
  background: #0f172a;
  border-radius: 0 0 10px 10px;
  z-index: 2;
}
.pbpwa-install--premium .pbpwa-install__device-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(165deg, #fef2f2 0%, #fff 60%, #fef9e7 100%);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 18px 10px 10px;
}
.pbpwa-install--premium .pbpwa-install__device-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(254, 2, 1, 0.25);
}
.pbpwa-install--premium .pbpwa-install__device-name {
  font-size: 11px;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: 0.02em;
}
.pbpwa-install--premium .pbpwa-install__device-dots {
  display: flex;
  gap: 3px;
  margin-top: 4px;
}
.pbpwa-install--premium .pbpwa-install__device-dots span {
  width: 5px;
  height: 5px;
  background: #fe0201;
  border-radius: 50%;
  opacity: 0.4;
  animation: pbpwa-dot 1.2s ease-in-out infinite;
}
.pbpwa-install--premium .pbpwa-install__device-dots span:nth-child(2) { animation-delay: 0.2s; opacity: 0.7; }
.pbpwa-install--premium .pbpwa-install__device-dots span:nth-child(3) { animation-delay: 0.4s; opacity: 1; }
@keyframes pbpwa-dot {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.6); }
}

.pbpwa-install--premium .pbpwa-install__sparkles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.pbpwa-install--premium .pbpwa-install__sparkles span {
  position: absolute;
  font-size: 20px;
  opacity: 0;
  animation: pbpwa-sparkle 4s ease-in-out infinite;
}
.pbpwa-install--premium .pbpwa-install__sparkles span:nth-child(1) { top: 18%; left: 12%; animation-delay: 0s; }
.pbpwa-install--premium .pbpwa-install__sparkles span:nth-child(2) { top: 24%; right: 14%; animation-delay: 0.8s; }
.pbpwa-install--premium .pbpwa-install__sparkles span:nth-child(3) { bottom: 28%; left: 18%; animation-delay: 1.6s; }
.pbpwa-install--premium .pbpwa-install__sparkles span:nth-child(4) { bottom: 18%; right: 12%; animation-delay: 2.4s; }
@keyframes pbpwa-sparkle {
  0%, 100% { opacity: 0; transform: scale(0.6) rotate(0deg); }
  20%      { opacity: 1; transform: scale(1.2) rotate(20deg); }
  40%      { opacity: 0; transform: scale(0.8) rotate(-15deg); }
}

/* Content */
.pbpwa-install--premium .pbpwa-install__content {
  padding: 18px 24px 22px;
  text-align: center;
}
.pbpwa-install--premium .pbpwa-install__title {
  font-size: 1.18em;
  font-weight: 800;
  margin: 0 0 6px;
}
.pbpwa-install--premium .pbpwa-install__intro {
  font-size: 0.93em;
  margin: 0 0 14px;
  color: #475569;
  line-height: 1.5;
}

.pbpwa-install--premium .pbpwa-install__benefits {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 14px;
  text-align: left;
}
.pbpwa-install--premium .pbpwa-install__benefits li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85em;
  color: #1e293b;
  font-weight: 600;
  line-height: 1.3;
}
.pbpwa-install--premium .pbpwa-install__benefit-icon {
  font-size: 18px;
  width: 28px;
  height: 28px;
  background: rgba(254, 2, 1, 0.08);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pbpwa-install--premium .pbpwa-install__actions {
  flex-direction: column;
  gap: 10px;
}
.pbpwa-install--premium .pbpwa-install__btn {
  width: 100%;
  padding: 14px 22px;
  font-size: 1em;
  border-radius: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.pbpwa-install--premium .pbpwa-install__btn--primary {
  background: linear-gradient(135deg, #fe0201 0%, #b30000 100%);
  box-shadow: 0 10px 24px rgba(254, 2, 1, 0.4);
  border: none;
}
.pbpwa-install--premium .pbpwa-install__btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(254, 2, 1, 0.5);
}
.pbpwa-install--premium .pbpwa-install__arrow {
  transition: transform 0.2s;
}
.pbpwa-install--premium .pbpwa-install__btn--primary:hover .pbpwa-install__arrow {
  transform: translateX(4px);
}
.pbpwa-install--premium .pbpwa-install__btn--ghost {
  background: transparent;
  color: #64748b;
  border: 1.5px solid transparent;
  text-decoration: underline;
}
.pbpwa-install--premium .pbpwa-install__btn--ghost:hover {
  color: #fe0201;
}

.pbpwa-install--premium .pbpwa-install__trust {
  margin: 14px 0 0;
  font-size: 0.78em;
  color: #94a3b8;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.pbpwa-install--premium .pbpwa-install__close {
  top: 14px;
  right: 14px;
  background: rgba(255, 255, 255, 0.92);
  z-index: 5;
  color: #0f172a;
  font-weight: 600;
  font-size: 20px;
}

@media (max-width: 460px) {
  .pbpwa-install--premium .pbpwa-install__benefits { grid-template-columns: 1fr; }
  .pbpwa-install--premium .pbpwa-install__device { width: 100px; height: 170px; }
}

@media (prefers-color-scheme: dark) {
  .pbpwa-install--premium { background: linear-gradient(180deg, #1f2024 0%, #2a1a1a 100%); }
  .pbpwa-install--premium .pbpwa-install__intro { color: #d4d4d8; }
  .pbpwa-install--premium .pbpwa-install__benefits li { color: #f4f4f5; }
  .pbpwa-install--premium .pbpwa-install__benefit-icon { background: rgba(254, 2, 1, 0.2); }
  .pbpwa-install--premium .pbpwa-install__device-screen { background: linear-gradient(165deg, #1f1f2c 0%, #2a2a35 100%); }
  .pbpwa-install--premium .pbpwa-install__device-name { color: #f4f4f5; }
}