:root {
  --rte-app-ink: #17212b;
  --rte-app-blue: #256b8a;
  --rte-app-surface: #ffffff;
  --rte-app-border: #d5dee5;
  --rte-app-shadow: 0 12px 36px rgba(23, 33, 43, 0.18);
}

.rte-app-install,
.rte-app-status {
  position: fixed;
  z-index: 100000;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  left: auto;
  width: min(460px, calc(100vw - 32px));
  box-sizing: border-box;
  border: 1px solid var(--rte-app-border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.98);
  color: var(--rte-app-ink);
  box-shadow: var(--rte-app-shadow);
  font: 16px/1.4 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.rte-app-install {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
}

.rte-app-install[hidden],
.rte-app-status[hidden],
.rte-app-dock[hidden] {
  display: none !important;
}

.rte-app-install strong,
.rte-app-install span {
  display: block;
}

.rte-app-install span {
  margin-top: 3px;
  color: #5d6972;
  font-size: 14px;
}

.rte-app-install-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 8px;
}

.rte-app-primary,
.rte-app-secondary,
.rte-app-inline-install,
.rte-app-status button {
  min-height: 44px;
  padding: 9px 14px;
  border-radius: 999px;
  font: 700 14px/1 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  cursor: pointer;
}

.rte-app-primary,
.rte-app-inline-install,
.rte-app-status button {
  border: 1px solid var(--rte-app-blue);
  background: var(--rte-app-blue);
  color: #fff;
}

.rte-app-secondary {
  border: 1px solid var(--rte-app-border);
  background: #fff;
  color: var(--rte-app-ink);
}

.rte-app-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: #17212b;
  color: #fff;
}

.rte-app-dialog {
  max-width: min(520px, calc(100vw - 28px));
  padding: 0;
  border: 0;
  border-radius: 20px;
  color: var(--rte-app-ink);
  box-shadow: var(--rte-app-shadow);
}

.rte-app-dialog::backdrop {
  background: rgba(10, 20, 30, 0.58);
  backdrop-filter: blur(3px);
}

.rte-app-dialog form {
  position: relative;
  padding: 28px;
}

.rte-app-dialog h2 {
  margin: 0 38px 16px 0;
  font-size: 24px;
}

.rte-app-dialog li {
  margin: 9px 0;
}

.rte-app-dialog-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: #eef3f6;
  color: var(--rte-app-ink);
  font-size: 28px;
  cursor: pointer;
}

.rte-app-dock {
  position: fixed;
  z-index: 99999;
  right: 12px;
  bottom: max(10px, env(safe-area-inset-bottom));
  left: 12px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 560px;
  margin: 0 auto;
  padding: 6px;
  border: 1px solid rgba(213, 222, 229, 0.88);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--rte-app-shadow);
  backdrop-filter: blur(16px);
}

.rte-app-dock a {
  display: flex;
  min-width: 0;
  min-height: 50px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  border-radius: 14px;
  color: #52606a;
  text-decoration: none;
}

.rte-app-dock a[aria-current="page"] {
  background: #e7f2f7;
  color: #174f69;
}

.rte-app-dock a span {
  font-size: 20px;
  line-height: 1;
}

.rte-app-dock a small {
  overflow: hidden;
  max-width: 100%;
  font-size: 11px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rte-app-standalone body {
  padding-bottom: calc(84px + env(safe-area-inset-bottom));
}

@media (max-width: 620px) {
  .rte-app-install {
    right: 12px;
    bottom: max(12px, env(safe-area-inset-bottom));
    left: 12px;
    width: auto;
    flex-direction: column;
    align-items: stretch;
  }

  .rte-app-install-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rte-app-install,
  .rte-app-status,
  .rte-app-dialog,
  .rte-app-dock {
    scroll-behavior: auto;
  }
}