.running-program-editor {
  display: grid;
  min-width: 0;
  gap: 14px;
}

.rpe-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.rpe-heading {
  display: grid;
  gap: 3px;
}

.rpe-heading > strong {
  font-size: 1.05rem;
}

.rpe-heading > span,
.rpe-customize-help {
  color: var(--text-secondary, #64748b);
  font-size: 0.82rem;
}

.rpe-heading > span.is-valid {
  color: var(--green, #157347);
}

.rpe-heading > span.is-error {
  color: var(--danger, #b42318);
}

.rpe-customize-help {
  margin: -6px 0 0;
}

.rpe-open-design {
  min-height: 44px;
  white-space: nowrap;
}

.rpe-design-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1400;
  display: grid;
  background: color-mix(in srgb, #09111f 66%, transparent);
  backdrop-filter: blur(12px);
}

.rpe-design-backdrop[hidden] {
  display: none;
}

.rpe-design-dialog {
  box-sizing: border-box;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  width: 100%;
  height: 100dvh;
  overflow: hidden;
  background:
    radial-gradient(circle at 10% 0%, color-mix(in srgb, var(--accent, #2563eb) 9%, transparent), transparent 30rem),
    var(--page-bg, #f5f7fb);
  color: var(--text-primary, #172033);
}

.rpe-design-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
  padding: max(14px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) 14px max(20px, env(safe-area-inset-left));
  border-bottom: 1px solid var(--border-subtle, rgba(23, 32, 51, 0.14));
  background: color-mix(in srgb, var(--surface, #fff) 90%, transparent);
  backdrop-filter: blur(18px);
}

.rpe-design-header > div {
  display: grid;
  gap: 2px;
}

.rpe-design-header h2,
.rpe-design-header p {
  margin: 0;
}

.rpe-design-header h2 {
  font-size: clamp(1.2rem, 2vw, 1.7rem);
}

.rpe-design-header p {
  color: var(--text-secondary, #64748b);
  font-size: 0.82rem;
}

.rpe-design-eyebrow {
  color: var(--accent, #2563eb);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rpe-design-body {
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 18px max(18px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));
}

.rpe-debug-source {
  max-width: 90rem;
  margin: 24px auto 0;
  padding: 14px;
  border: 1px solid var(--border-subtle, rgba(23, 32, 51, 0.14));
  border-radius: 14px;
  background: var(--surface, #fff);
}

.rpe-debug-source > summary {
  min-height: 44px;
  cursor: pointer;
  font-weight: 750;
}

.rpe-debug-source > p {
  color: var(--text-secondary, #64748b);
  font-size: 0.82rem;
}

body.running-design-open {
  overflow: hidden;
}

@media (max-width: 680px) {
  .rpe-header {
    align-items: stretch;
    flex-direction: column;
  }

  .rpe-open-design {
    width: 100%;
  }

  .rpe-design-header {
    align-items: flex-start;
    min-height: auto;
  }

  .rpe-design-header p {
    display: none;
  }

  .rpe-design-body {
    padding-top: 12px;
  }
}