/* ============================================================
 *  Peerly — Bannière d'installation PWA
 * ============================================================ */

.install-banner {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translate(-50%, 100%);
  z-index: 8000;

  display: flex;
  align-items: center;
  gap: 14px;

  padding: 14px 16px;
  max-width: 560px;
  width: calc(100% - 32px);

  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-large);
  box-shadow:
    var(--md-elevation-4),
    0 0 0 1px color-mix(in srgb, var(--md-primary) 12%, transparent);

  opacity: 0;
  transition:
    transform 400ms cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 300ms ease;
}

.install-banner.visible {
  transform: translate(-50%, 0);
  opacity: 1;
}

/* ---- Icône ---- */
.install-banner-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--md-shape-full);
  background: linear-gradient(135deg, var(--md-primary), var(--md-primary-container));
  color: var(--md-on-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px color-mix(in srgb, var(--md-primary) 30%, transparent);
}
.install-banner-icon i {
  font-size: 22px;
  line-height: 1;
}

/* ---- Texte ---- */
.install-banner-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.install-banner-title {
  font-size: var(--md-title-small-size);
  line-height: var(--md-title-small-line);
  font-weight: 700;
  color: var(--md-on-surface);
}
.install-banner-desc {
  font-size: var(--md-body-small-size);
  line-height: var(--md-body-small-line);
  color: var(--md-on-surface-variant);
}
.install-banner-desc i {
  display: inline-flex;
  vertical-align: middle;
  color: var(--md-primary);
  font-size: 15px;
}
.install-banner-desc strong {
  color: var(--md-on-surface);
  font-weight: 600;
}

/* ---- Actions ---- */
.install-banner-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.install-btn {
  padding: 8px 16px;
  border-radius: var(--md-shape-full);
  font-family: var(--md-font-family);
  font-size: var(--md-label-medium-size);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--md-transition-fast);
  white-space: nowrap;
}

.install-btn-primary {
  background: var(--md-primary);
  color: var(--md-on-primary);
}
.install-btn-primary:hover {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  transform: scale(1.03);
}
.install-btn-primary:active {
  transform: scale(0.97);
}

.install-btn-ghost {
  background: transparent;
  color: var(--md-on-surface-variant);
  border: 1px solid var(--md-outline-variant);
}
.install-btn-ghost:hover {
  background: var(--md-surface-container-highest);
  color: var(--md-on-surface);
}

/* ---- Mobile ---- */
@media (max-width: 599px) {
  .install-banner {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 16px;
    bottom: 12px;
    width: calc(100% - 24px);
  }
  .install-banner-text {
    text-align: center;
    align-items: center;
  }
  .install-banner-icon {
    margin: 0 auto;
  }
  .install-banner-actions {
    width: 100%;
  }
  .install-btn {
    flex: 1;
    padding: 10px 12px;
    text-align: center;
  }
}