.tmm-rbv-app {
  --tmm-rbv-text: #1c2433;
  --tmm-rbv-muted: #5f6b7a;
  --tmm-rbv-border: #d9e0ea;
  --tmm-rbv-panel: #ffffff;
  --tmm-rbv-soft: #f7f9fc;
  --tmm-rbv-head: #1768d1;
  --tmm-rbv-head-soft: #e8f1ff;
  --tmm-rbv-tail: #b45f06;
  --tmm-rbv-tail-soft: #fff1dc;
  --tmm-rbv-write: #138a46;
  --tmm-rbv-write-soft: #e8f7ee;
  --tmm-rbv-error: #c52727;
  --tmm-rbv-error-soft: #ffe8e8;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  color: var(--tmm-rbv-text);
  font-family: inherit;
}

.tmm-rbv-app *,
.tmm-rbv-app *::before,
.tmm-rbv-app *::after {
  box-sizing: inherit;
}

.tmm-rbv-app h3,
.tmm-rbv-app p {
  margin: 0;
}

.tmm-rbv-card {
  display: grid;
  gap: 16px;
  width: 100%;
  max-width: none;
  margin: 18px 0;
  padding: clamp(14px, 3vw, 22px);
  background: var(--tmm-rbv-panel);
  border: 1px solid var(--tmm-rbv-border);
  border-radius: 10px;
  box-shadow: 0 8px 22px rgba(28, 36, 51, 0.07);
}

.tmm-rbv-topline {
  display: grid;
  gap: 4px;
}

.tmm-rbv-topline h3 {
  color: var(--tmm-rbv-text);
  font-size: 1.15rem;
  line-height: 1.2;
}

.tmm-rbv-topline p,
.tmm-rbv-legend,
.tmm-rbv-uart-label {
  color: var(--tmm-rbv-muted);
  font-size: 0.92rem;
}

.tmm-rbv-buffer-area {
  display: grid;
  justify-items: center;
  gap: 10px;
  padding: 8px 0 4px;
}

.tmm-rbv-buffer {
  position: relative;
  width: min(100%, 430px);
  aspect-ratio: 1;
  min-height: 280px;
  border-radius: 999px;
  background:
    radial-gradient(circle at center, #ffffff 0 42%, #f4f7fb 43% 44%, transparent 45%),
    #fbfcff;
  border: 1px solid #eef2f7;
}

.tmm-rbv-buffer::after {
  content: "";
  position: absolute;
  inset: 21%;
  border: 1px dashed #cbd6e4;
  border-radius: 999px;
  pointer-events: none;
}

.tmm-rbv-slot {
  position: absolute;
  z-index: 1;
  display: grid;
  grid-template-rows: auto 1fr auto;
  align-items: center;
  justify-items: center;
  width: 86px;
  min-height: 74px;
  padding: 8px 6px;
  color: var(--tmm-rbv-text);
  background: #ffffff;
  border: 1px solid #cbd6e4;
  border-radius: 9px;
  box-shadow: 0 4px 12px rgba(28, 36, 51, 0.08);
  text-align: center;
  transform: translate(-50%, -50%);
  transition:
    border-color 180ms ease,
    background-color 180ms ease,
    box-shadow 180ms ease;
}

.tmm-rbv-slot--filled {
  border-color: #9fbbe4;
  background: #f5f9ff;
}

.tmm-rbv-slot--write {
  border-color: var(--tmm-rbv-write);
  background: var(--tmm-rbv-write-soft);
  box-shadow: 0 0 0 4px rgba(19, 138, 70, 0.14);
}

.tmm-rbv-slot--read {
  border-color: var(--tmm-rbv-tail);
  background: var(--tmm-rbv-tail-soft);
  box-shadow: 0 0 0 4px rgba(180, 95, 6, 0.15);
}

.tmm-rbv-slot--wrap {
  border-color: var(--tmm-rbv-head);
  box-shadow: 0 0 0 4px rgba(23, 104, 209, 0.17);
}

.tmm-rbv-slot-index {
  color: var(--tmm-rbv-muted);
  font-family: Consolas, Monaco, "Liberation Mono", monospace;
  font-size: 0.78rem;
  font-weight: 700;
}

.tmm-rbv-slot-value {
  display: grid;
  place-items: center;
  min-height: 26px;
  color: var(--tmm-rbv-text);
  font-family: Consolas, Monaco, "Liberation Mono", monospace;
  font-size: 0.9rem;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.tmm-rbv-pointer-stack {
  display: flex;
  justify-content: center;
  gap: 3px;
  min-height: 18px;
}

.tmm-rbv-pointer {
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  padding: 1px 5px;
  border-radius: 999px;
  font-size: 0.62rem;
  font-weight: 800;
  line-height: 1;
}

.tmm-rbv-pointer--head {
  color: var(--tmm-rbv-head);
  background: var(--tmm-rbv-head-soft);
  border: 1px solid #b8d0f2;
}

.tmm-rbv-pointer--tail {
  color: var(--tmm-rbv-tail);
  background: var(--tmm-rbv-tail-soft);
  border: 1px solid #f4c37f;
}

.tmm-rbv-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 16px;
}

.tmm-rbv-head-text {
  color: var(--tmm-rbv-head);
}

.tmm-rbv-tail-text {
  color: var(--tmm-rbv-tail);
}

.tmm-rbv-controls,
.tmm-rbv-uart-row,
.tmm-rbv-status {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 8px;
}

.tmm-rbv-value-field {
  display: grid;
  gap: 5px;
  min-width: min(100%, 190px);
  color: var(--tmm-rbv-muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.tmm-rbv-app input[type="text"] {
  width: 100%;
  min-height: 38px;
  padding: 8px 10px;
  color: var(--tmm-rbv-text);
  background: #ffffff;
  border: 1px solid #cbd6e4;
  border-radius: 7px;
  font: inherit;
}

.tmm-rbv-app button,
.tmm-rbv-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 12px;
  color: #ffffff;
  background: var(--tmm-rbv-head);
  border: 1px solid var(--tmm-rbv-head);
  border-radius: 7px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.tmm-rbv-button--secondary {
  color: var(--tmm-rbv-head);
  background: var(--tmm-rbv-head-soft);
  border-color: #b8d0f2;
}

.tmm-rbv-button--muted,
.tmm-rbv-button--copy {
  color: #2d3646;
  background: #eef2f7;
  border-color: #cbd6e4;
}

.tmm-rbv-app button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.tmm-rbv-app button:focus-visible,
.tmm-rbv-app input:focus-visible,
.tmm-rbv-app summary:focus-visible {
  outline: 3px solid rgba(23, 104, 209, 0.28);
  outline-offset: 2px;
}

.tmm-rbv-uart-row {
  align-items: center;
  padding: 10px;
  background: var(--tmm-rbv-soft);
  border: 1px solid var(--tmm-rbv-border);
  border-radius: 8px;
}

.tmm-rbv-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--tmm-rbv-text);
  font-weight: 700;
}

.tmm-rbv-app input[type="checkbox"] {
  accent-color: var(--tmm-rbv-head);
}

.tmm-rbv-uart-label {
  font-family: Consolas, Monaco, "Liberation Mono", monospace;
}

.tmm-rbv-status {
  padding: 10px;
  background: #fbfcff;
  border: 1px solid var(--tmm-rbv-border);
  border-radius: 8px;
}

.tmm-rbv-status span {
  color: var(--tmm-rbv-muted);
}

.tmm-rbv-status strong {
  color: var(--tmm-rbv-text);
  font-family: Consolas, Monaco, "Liberation Mono", monospace;
}

.tmm-rbv-status strong[data-state="empty"] {
  color: var(--tmm-rbv-tail);
}

.tmm-rbv-status strong[data-state="ready"] {
  color: var(--tmm-rbv-write);
}

.tmm-rbv-status strong[data-state="full"] {
  color: var(--tmm-rbv-error);
}

.tmm-rbv-message {
  min-height: 42px;
  padding: 10px 12px;
  color: #21466e;
  background: #edf5ff;
  border: 1px solid #c4daf6;
  border-radius: 8px;
  font-weight: 700;
}

.tmm-rbv-message[data-tone="error"] {
  color: var(--tmm-rbv-error);
  background: var(--tmm-rbv-error-soft);
  border-color: #ffc4c4;
}

.tmm-rbv-code {
  border: 1px solid var(--tmm-rbv-border);
  border-radius: 8px;
  background: transparent;
}

.tmm-rbv-code summary {
  padding: 11px 12px;
  color: var(--tmm-rbv-text);
  font-weight: 800;
  cursor: pointer;
}

.tmm-rbv-code .tmm-rbv-button--copy {
  margin: 0 12px 10px;
}

.tmm-rbv-noscript {
  padding: 10px 12px;
  color: var(--tmm-rbv-error);
  background: var(--tmm-rbv-error-soft);
  border: 1px solid #ffc4c4;
  border-radius: 8px;
}

@media (max-width: 700px) {
  .tmm-rbv-card {
    padding: 12px;
  }

  .tmm-rbv-buffer {
    min-height: 240px;
  }

  .tmm-rbv-slot {
    width: 72px;
    min-height: 64px;
    padding: 6px 4px;
  }

  .tmm-rbv-slot-value {
    font-size: 0.78rem;
  }

  .tmm-rbv-controls,
  .tmm-rbv-uart-row,
  .tmm-rbv-status {
    align-items: stretch;
  }

  .tmm-rbv-controls > *,
  .tmm-rbv-uart-row > * {
    flex: 1 1 100%;
  }
}

@media (max-width: 430px) {
  .tmm-rbv-buffer {
    min-height: 210px;
  }

  .tmm-rbv-slot {
    width: 62px;
    min-height: 58px;
  }

  .tmm-rbv-pointer {
    font-size: 0.55rem;
    padding: 1px 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tmm-rbv-app *,
  .tmm-rbv-app *::before,
  .tmm-rbv-app *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}