.poster-image-workspace {
  --poster-content-width: 56rem;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  min-width: 0;
  height: clamp(34rem, calc(100dvh - 10rem), 48rem);
  min-height: 34rem;
  overflow: hidden;
  border: 1px solid var(--border-strong, #d8dee9);
  border-radius: var(--radius-md, 10px);
  background: var(--bg-card, #fff);
  color: var(--text-primary, #1a1a2e);
}

.poster-image-workspace__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4, 1rem);
  padding: var(--space-4, 1rem) var(--space-5, 1.25rem);
  border-bottom: 1px solid var(--border, #e6eaf0);
}

.poster-image-workspace__heading {
  display: grid;
  gap: var(--space-1, .25rem);
  min-width: 0;
}

.poster-image-workspace__heading h3,
.poster-image-workspace__heading p,
.poster-image-workspace__empty h4,
.poster-image-workspace__empty p,
.poster-image-workspace__message p,
.poster-image-workspace__caption,
.poster-image-workspace__status {
  margin: 0;
}

.poster-image-workspace__heading h3 {
  font-size: 1.125rem;
  line-height: 1.4;
}

.poster-image-workspace__model,
.poster-image-workspace__caption {
  color: var(--text-secondary, #64748b);
  font-size: .8125rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.poster-image-workspace__messages {
  width: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.poster-image-workspace__empty,
.poster-image-workspace__message {
  width: min(100% - 2rem, var(--poster-content-width));
  margin-inline: auto;
}

.poster-image-workspace__empty {
  display: grid;
  align-content: center;
  justify-items: center;
  height: 100%;
  min-height: 18rem;
  padding: var(--space-8, 2rem) 0;
  text-align: center;
}

.poster-image-workspace__empty h4 {
  max-width: 36rem;
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.25;
}

.poster-image-workspace__empty p {
  max-width: 38rem;
  margin-top: var(--space-3, .75rem);
  color: var(--text-secondary, #64748b);
  font-size: .9375rem;
  line-height: 1.65;
}

.poster-image-workspace__suggestions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2, .5rem);
  width: min(100%, 46rem);
  margin-top: var(--space-6, 1.5rem);
}

.poster-image-workspace__suggestion {
  min-height: var(--control-height-touch, 44px);
  padding: var(--space-3, .75rem);
  border: 1px solid var(--border-strong, #d8dee9);
  border-radius: var(--radius-sm, 6px);
  background: var(--bg-card, #fff);
  color: var(--text-primary, #1a1a2e);
  font: inherit;
  font-size: .875rem;
  line-height: 1.45;
  text-align: start;
  cursor: pointer;
}

.poster-image-workspace__suggestion:hover {
  border-color: var(--primary, #e31937);
  background: var(--surface-subtle, #f8f9fc);
}

.poster-image-workspace__message {
  padding-block: var(--space-4, 1rem);
}

.poster-image-workspace__user-message {
  width: fit-content;
  max-width: 74%;
  margin-inline-start: auto;
}

.poster-image-workspace__user-message p {
  padding: var(--space-3, .75rem) var(--space-4, 1rem);
  border-radius: var(--radius-md, 10px);
  background: #fce8ec;
  color: #631321;
  line-height: 1.55;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.poster-image-workspace__assistant-message {
  display: grid;
  gap: var(--space-3, .75rem);
}

.poster-image-workspace__assistant-message[data-message-state="generating"] {
  grid-template-columns: auto 1fr;
  align-items: center;
  color: var(--text-secondary, #64748b);
}

.poster-image-workspace__assistant-message[data-message-state="error"] {
  border: 1px solid #fecdd3;
  border-radius: var(--radius-sm, 6px);
  padding: var(--space-3, .75rem);
  background: #fff1f2;
  color: #9f1239;
}

.poster-image-workspace__generating-dot {
  width: .65rem;
  height: .65rem;
  border-radius: 50%;
  background: var(--primary, #e31937);
  animation: poster-image-pulse 1.2s ease-in-out infinite;
}

@keyframes poster-image-pulse {
  50% { opacity: .35; transform: scale(.8); }
}

.poster-image-workspace__result {
  display: grid;
  gap: var(--space-3, .75rem);
  width: min(100%, 32rem);
  margin: 0;
}

.poster-image-workspace__image {
  display: block;
  width: 100%;
  aspect-ratio: 2 / 3;
  border: 1px solid var(--border, #e6eaf0);
  border-radius: var(--radius-md, 10px);
  background: var(--surface-subtle, #f8f9fc);
  object-fit: contain;
}

.poster-image-workspace__result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2, .5rem);
}

.poster-image-workspace__status {
  width: min(100% - 2rem, var(--poster-content-width));
  margin-inline: auto;
  padding-block: var(--space-2, .5rem);
  color: var(--text-secondary, #64748b);
  font-size: .8125rem;
  line-height: 1.45;
}

.poster-image-workspace__status[data-workspace-state="error"],
.poster-image-workspace__status[data-workspace-state="not_configured"] {
  color: #9f1239;
}

.poster-image-workspace__composer {
  position: sticky;
  bottom: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: var(--space-2, .5rem);
  width: min(100% - 2rem, var(--poster-content-width));
  margin-inline: auto;
  padding: var(--space-3, .75rem);
  border: 1px solid var(--border-strong, #d8dee9);
  border-radius: var(--radius-md, 10px);
  background: var(--bg-card, #fff);
}

.poster-image-workspace__input {
  width: 100%;
  min-height: 3rem;
  max-height: 12rem;
  resize: vertical;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text-primary, #1a1a2e);
  font: inherit;
  font-size: .9375rem;
  line-height: 1.55;
}

.poster-image-workspace__input::placeholder {
  color: var(--text-secondary, #64748b);
}

.poster-image-workspace__send {
  min-width: 5.5rem;
  min-height: var(--control-height-touch, 44px);
}

.poster-image-workspace :is(button, textarea):focus-visible {
  outline: 3px solid var(--primary, #e31937);
  outline-offset: 2px;
}

.poster-image-workspace :is(button, textarea):disabled {
  cursor: not-allowed;
  opacity: .56;
}

@media (max-width: 640px) {
  .poster-image-workspace {
    height: clamp(32rem, calc(100dvh - 14rem), 42rem);
    min-height: 32rem;
    border-inline: 0;
    border-radius: 0;
  }

  .poster-image-workspace__header {
    align-items: flex-start;
    padding: var(--space-3, .75rem);
  }

  .poster-image-workspace__empty,
  .poster-image-workspace__message,
  .poster-image-workspace__status,
  .poster-image-workspace__composer {
    width: min(100% - 1rem, var(--poster-content-width));
  }

  .poster-image-workspace__empty {
    min-height: 23rem;
    padding-block: var(--space-5, 1.25rem);
  }

  .poster-image-workspace__suggestions {
    grid-template-columns: 1fr;
  }

  .poster-image-workspace__user-message {
    max-width: 90%;
  }

  .poster-image-workspace__composer {
    grid-template-columns: 1fr;
  }

  .poster-image-workspace__send {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .poster-image-workspace__messages {
    scroll-behavior: auto;
  }

  .poster-image-workspace__generating-dot {
    animation: none;
  }
}