:host {
  display: block;
  flex-shrink: 0;
}

.eo-input-area {
  display: flex;
  flex-direction: column;
  padding: 12px 16px 12px;
  border-top: 1px solid var(--eo-border, #e3e4e0);
  background: var(--eo-surface, #ffffff);

  /* Inheritable-property reset (L2) — block partner-page CSS leakage. */
  font-family: var(--eo-font, system-ui, -apple-system, 'Segoe UI', sans-serif);
  font-size: 14px;
  line-height: 1.5;
  color: var(--eo-text, #1d1d1b);
  letter-spacing: normal;
  text-transform: none;
  text-align: start;
  font-style: normal;
  font-weight: 400;
}

/* Composer row — send button sits beside the textarea, bottom-aligned */
.eo-input-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.eo-textarea {
  flex: 1;
  min-width: 0;
  /* border-box so min-height is the RENDERED height — shadow DOM has no
   * global box-sizing reset and content-box would add the 28px of padding
   * on top (the prototype sets border-box explicitly too). */
  box-sizing: border-box;
  min-height: 78px;
  resize: none;
  border: 1px solid var(--eo-border, #e3e4e0);
  border-radius: 12px;
  padding: 14px;
  font-size: 14px;
  /* Locked stack — never `inherit`. Partners cannot pipe their body font in. */
  font-family: var(--eo-font, system-ui, -apple-system, 'Segoe UI', sans-serif);
  line-height: 22px;
  color: var(--eo-text, #1d1d1b);
  background: var(--eo-sunken, #f5f6f4);
  outline: none;
  overflow-y: auto;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.eo-textarea:focus {
  border-color: var(--eo-green, #50c878);
  background: var(--eo-surface, #ffffff);
}

.eo-textarea:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.eo-textarea::placeholder {
  color: var(--eo-text-3, #6c6c6a);
}

.eo-send-btn {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  background: var(--eo-border, #e3e4e0);
  color: var(--eo-text-3, #6c6c6a);
  transition: background 150ms ease, color 150ms ease;
  padding: 0;
}

.eo-send-btn--active {
  background: var(--eo-green, #50c878);
  color: var(--eo-on-green, #10240f);
}

.eo-send-btn--active:hover {
  background: var(--eo-green-hover, #34a85c);
}

.eo-send-btn:disabled {
  cursor: not-allowed;
}

/* Deviation from the prototype: no opacity — text-3 at 0.75 opacity lands
 * ~3.4:1 on white, below WCAG AA (4.5:1). Full-opacity text-3 passes. */
.eo-input-disclaimer {
  margin: 8px 0 0;
  font-size: 11px;
  line-height: 16px;
  color: var(--eo-text-3, #6c6c6a);
  text-align: center;
}