/**
 * Composer Engine styles — light / dark via CSS variables (Phase 6.3).
 * Shared by visitor + admin hosts. Keep accent aligned with conversation.css.
 */
.ic-comp {
  --ic-comp-bg: #ffffff;
  --ic-comp-surface: #f8fafc;
  --ic-comp-border: #e2e8f0;
  --ic-comp-text: #0f172a;
  --ic-comp-muted: #64748b;
  --ic-comp-accent: #2563eb;
  --ic-comp-accent-text: #ffffff;
  --ic-comp-danger: #b42318;
  --ic-comp-danger-bg: #fef3f2;
  --ic-comp-progress: #1f4b99;
  --ic-comp-progress-track: #e4e8ef;
  --ic-comp-radius: 12px;
  --ic-comp-font: inherit;
  --ic-comp-safe-bottom: env(safe-area-inset-bottom, 0px);

  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.75rem 0.75rem calc(0.75rem + var(--ic-comp-safe-bottom));
  background: var(--ic-comp-bg);
  color: var(--ic-comp-text);
  font-family: var(--ic-comp-font);
  border-top: 1px solid var(--ic-comp-border);
  box-sizing: border-box;
  color-scheme: light;
}

.ic-comp *,
.ic-comp *::before,
.ic-comp *::after {
  box-sizing: border-box;
}

.ic-comp[data-theme="dark"],
.ic-comp.ic-comp--dark {
  --ic-comp-bg: #1a1f2c;
  --ic-comp-surface: #232836;
  --ic-comp-border: #2c3344;
  --ic-comp-text: #e8eaef;
  --ic-comp-muted: #9aa3b2;
  --ic-comp-accent: #6b9eff;
  --ic-comp-accent-text: #0b1220;
  --ic-comp-danger: #f97066;
  --ic-comp-danger-bg: #3b1a1a;
  --ic-comp-progress: #6b9eff;
  --ic-comp-progress-track: #2a3040;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  .ic-comp[data-theme="auto"] {
    --ic-comp-bg: #1a1f2c;
    --ic-comp-surface: #232836;
    --ic-comp-border: #2c3344;
    --ic-comp-text: #e8eaef;
    --ic-comp-muted: #9aa3b2;
    --ic-comp-accent: #6b9eff;
    --ic-comp-accent-text: #0b1220;
    --ic-comp-danger: #f97066;
    --ic-comp-danger-bg: #3b1a1a;
    --ic-comp-progress: #6b9eff;
    --ic-comp-progress-track: #2a3040;
    color-scheme: dark;
  }
}

.ic-comp-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.ic-comp__errors {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ic-comp__error {
  padding: 0.4rem 0.6rem;
  border-radius: 8px;
  background: var(--ic-comp-danger-bg);
  color: var(--ic-comp-danger);
  font-size: 0.8125rem;
}

.ic-comp__uploads {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  max-height: 9rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.ic-comp__upload {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 0.25rem 0.5rem;
  padding: 0.5rem 0.65rem;
  background: var(--ic-comp-surface);
  border: 1px solid var(--ic-comp-border);
  border-radius: 10px;
  align-items: center;
}

.ic-comp__upload-info {
  grid-column: 1;
  min-width: 0;
}

.ic-comp__upload-name {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ic-comp__upload-meta {
  display: block;
  font-size: 0.75rem;
  color: var(--ic-comp-muted);
}

.ic-comp__upload-actions {
  grid-column: 2;
  grid-row: 1 / span 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  justify-content: flex-end;
}

.ic-comp__progress {
  grid-column: 1 / -1;
  height: 4px;
  background: var(--ic-comp-progress-track);
  border-radius: 999px;
  overflow: hidden;
}

.ic-comp__progress-bar {
  height: 100%;
  width: 0;
  background: var(--ic-comp-progress);
  transition: width 120ms linear;
}

.ic-comp__chip-btn {
  appearance: none;
  border: 1px solid var(--ic-comp-border);
  background: var(--ic-comp-bg);
  color: var(--ic-comp-text);
  font-size: 0.75rem;
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  cursor: pointer;
}

.ic-comp__chip-btn:hover,
.ic-comp__chip-btn:focus-visible {
  border-color: var(--ic-comp-accent);
  outline: 2px solid transparent;
}

.ic-comp__chip-btn--danger {
  color: var(--ic-comp-danger);
}

.ic-comp__form {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-rows: auto auto;
  column-gap: 0.5rem;
  row-gap: 0.2rem;
  align-items: end;
}

.ic-comp__file {
  display: none !important;
}

.ic-comp__attach {
  grid-column: 1;
  grid-row: 1;
  align-self: end;
  flex: 0 0 auto;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 10px;
  border: 1px solid var(--ic-comp-border);
  background: var(--ic-comp-surface);
  color: var(--ic-comp-text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.ic-comp__attach [data-lucide],
.ic-comp__attach svg {
  width: 18px;
  height: 18px;
  display: block;
}

.ic-comp__attach:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.ic-comp__attach:focus-visible {
  outline: 2px solid var(--ic-comp-accent);
  outline-offset: 2px;
}

.ic-comp__main {
  display: contents;
}

.ic-comp__input {
  grid-column: 2;
  grid-row: 1;
  align-self: end;
  width: 100%;
  resize: none;
  min-height: 2.5rem;
  max-height: 10rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--ic-comp-border);
  border-radius: 10px;
  background: var(--ic-comp-surface);
  color: var(--ic-comp-text);
  font: inherit;
  line-height: 1.4;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.ic-comp__input:focus {
  border-color: var(--ic-comp-accent) !important;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15) !important;
  outline: none !important;
}

.ic-comp__input:disabled {
  opacity: 0.6;
}

.ic-comp__meta {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.6875rem;
  color: var(--ic-comp-muted);
  padding: 0 0.15rem;
}

.ic-comp__send {
  grid-column: 3;
  grid-row: 1;
  align-self: end;
  flex: 0 0 auto;
  width: 2.5rem;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: none;
  border-radius: 10px;
  background: var(--ic-comp-accent);
  color: var(--ic-comp-accent-text);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.ic-comp__send [data-lucide],
.ic-comp__send svg {
  width: 18px;
  height: 18px;
  display: block;
}

.ic-comp__send:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.ic-comp__send:focus-visible {
  outline: 2px solid var(--ic-comp-accent);
  outline-offset: 2px;
}

.ic-comp__hint {
  margin: 0;
  font-size: 0.75rem;
  color: var(--ic-comp-muted);
}

.ic-comp__status {
  min-height: 1rem;
  font-size: 0.75rem;
  color: var(--ic-comp-muted);
}

.ic-comp--sending .ic-comp__send {
  cursor: wait;
}

.ic-comp--offline {
  opacity: 0.92;
}

/* Tablet */
@media (max-width: 900px) {
  .ic-comp {
    padding: 0.65rem 0.65rem calc(0.65rem + var(--ic-comp-safe-bottom));
  }

  .ic-comp__uploads {
    max-height: 7.5rem;
  }
}

/* Mobile */
@media (max-width: 560px) {
  .ic-comp__form {
    grid-template-columns: auto 1fr auto;
    grid-template-rows: auto auto;
  }

  .ic-comp__input {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .ic-comp__attach {
    grid-column: 1;
    grid-row: 2;
  }

  .ic-comp__meta {
    grid-column: 2;
    grid-row: 2;
  }

  .ic-comp__send {
    grid-column: 3;
    grid-row: 2;
  }

  .ic-comp__upload {
    grid-template-columns: 1fr;
  }

  .ic-comp__upload-actions {
    grid-column: 1;
    grid-row: auto;
    justify-content: flex-start;
  }
}