/* Case notes thread — the right-hand panel on the patient case overview.
   rx_case_chat.js builds messages with the same classes and syncs the panel's
   height to the main column above 1100px. */

.rx-chat {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.rx-chat .rx-show-card__header {
  flex-shrink: 0;
  border-bottom: 1px solid var(--ah-border);
}

.rx-chat.rx-show-card {
  overflow: hidden;
}

.rx-chat__thread {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  gap: 0.875rem;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 1.125rem 1.25rem;
  background:
    radial-gradient(24rem 10rem at 100% 0%, rgba(45, 212, 191, 0.06), transparent 70%),
    var(--ah-surface-2);
  scrollbar-width: thin;
}

.rx-chat__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  margin: auto;
  max-width: 16rem;
  text-align: center;
  font-size: var(--ah-text-sm);
  color: var(--ah-ink-3);
}

.rx-chat__empty::before {
  content: "";
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--ah-radius-md);
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230d7a70' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z'/%3E%3C/svg%3E") center / 20px no-repeat,
    linear-gradient(160deg, #f4fbfa, var(--ah-accent-soft));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--ah-accent) 14%, transparent), var(--ah-shadow-xs);
}

/* ── Messages ────────────────────────────────────────────── */

.rx-chat-msg {
  display: flex;
  flex-direction: column;
  gap: 0.3125rem;
  max-width: 86%;
  min-width: 0;
  animation: ah-rise var(--ah-dur-4) var(--ah-ease-spring) both;
}

.rx-chat-msg--theirs {
  align-self: flex-start;
  align-items: flex-start;
}

.rx-chat-msg--mine {
  align-self: flex-end;
  align-items: flex-end;
}

.rx-chat-msg__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.125rem 0.375rem;
  padding: 0 0.125rem;
  font-size: var(--ah-text-xs);
  line-height: 1.4;
  color: var(--ah-ink-3);
}

.rx-chat-msg__name {
  font-weight: var(--ah-weight-medium);
  color: var(--ah-ink-2);
}

.rx-chat-msg__role,
.rx-chat-msg__time,
.rx-chat-msg__edited {
  color: var(--ah-ink-3);
}

.rx-chat-msg__role::before,
.rx-chat-msg__time::before {
  content: "·";
  margin-right: 0.375rem;
  color: var(--ah-ink-4);
}

.rx-chat-msg__time {
  font-variant-numeric: tabular-nums;
}

.rx-chat-msg__edited {
  font-style: italic;
  color: var(--ah-ink-4);
}

.rx-chat-msg__row {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  max-width: 100%;
  min-width: 0;
}

.rx-chat-msg--mine .rx-chat-msg__row {
  flex-direction: row-reverse;
}

.rx-chat-msg__body {
  min-width: 0;
  margin: 0;
  padding: 0.5625rem 0.875rem;
  border-radius: var(--ah-radius-lg);
  font-size: var(--ah-text-base);
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.rx-chat-msg--theirs .rx-chat-msg__body {
  background: var(--ah-surface);
  color: var(--ah-ink);
  border-top-left-radius: var(--ah-radius-xs);
  box-shadow: inset 0 0 0 1px var(--ah-border), var(--ah-shadow-card);
}

.rx-chat-msg--mine .rx-chat-msg__body {
  background: var(--ah-accent-grad);
  color: #fff;
  border-top-right-radius: var(--ah-radius-xs);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 8px 20px -10px rgba(13, 122, 112, 0.65),
    0 2px 6px -2px var(--ah-accent-glow);
}

.rx-chat-msg--mine .rx-chat-msg__body::selection {
  background: rgba(255, 255, 255, 0.3);
  color: #fff;
}

/* ── Message menu (kebab) ────────────────────────────────── */

.rx-chat-msg__menu {
  position: relative;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--ah-dur-1);
}

.rx-chat-msg:hover .rx-chat-msg__menu,
.rx-chat-msg:focus-within .rx-chat-msg__menu,
.rx-chat-msg__menu.is-open {
  opacity: 1;
}

.rx-chat-msg__menu-toggle {
  display: inline-grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  padding: 0;
  border: 0;
  border-radius: var(--ah-radius-sm);
  background: transparent;
  color: var(--ah-ink-4);
  cursor: pointer;
  transition: background var(--ah-dur-1), color var(--ah-dur-1);
}

.rx-chat-msg__menu-toggle svg {
  width: 15px;
  height: 15px;
}

.rx-chat-msg__menu-toggle:hover,
.rx-chat-msg__menu.is-open .rx-chat-msg__menu-toggle {
  background: var(--ah-surface-3);
  color: var(--ah-ink-2);
}

.rx-chat-msg__menu-toggle:focus-visible {
  outline: none;
  box-shadow: var(--ah-focus-ring);
}

.rx-chat-msg__menu-list {
  position: absolute;
  top: calc(100% + 0.25rem);
  z-index: 6;
  min-width: 8rem;
  padding: 0.25rem;
  border: 1px solid var(--ah-border);
  border-radius: var(--ah-radius-md);
  background: var(--ah-surface);
  box-shadow: var(--ah-shadow-pop);
  animation: rx-chat-menu-in var(--ah-dur-1) var(--ah-ease-out);
}

@keyframes rx-chat-menu-in {
  from {
    opacity: 0;
    transform: scale(0.97);
  }
}

.rx-chat-msg--theirs .rx-chat-msg__menu-list {
  left: 0;
  transform-origin: top left;
}

.rx-chat-msg--mine .rx-chat-msg__menu-list {
  right: 0;
  transform-origin: top right;
}

.rx-chat-msg__menu-list.is-up {
  top: auto;
  bottom: calc(100% + 0.25rem);
}

.rx-chat-msg__menu-item {
  display: block;
  width: 100%;
  padding: 0.4375rem 0.625rem;
  border: 0;
  border-radius: var(--ah-radius-sm);
  background: transparent;
  color: var(--ah-ink);
  font-family: inherit;
  font-size: var(--ah-text-sm);
  text-align: left;
  cursor: pointer;
  transition: background var(--ah-dur-1), color var(--ah-dur-1);
}

.rx-chat-msg__menu-item:hover,
.rx-chat-msg__menu-item:focus-visible {
  outline: none;
  background: var(--ah-surface-2);
}

.rx-chat-msg__menu-item--danger {
  color: var(--ah-danger);
}

.rx-chat-msg__menu-item--danger:hover,
.rx-chat-msg__menu-item--danger:focus-visible {
  background: var(--ah-danger-soft);
  color: var(--ah-danger-ink);
}

@media (hover: none) {
  .rx-chat-msg__menu {
    opacity: 1;
  }

  .rx-chat-msg__menu-toggle {
    width: 2.75rem;
    height: 2.75rem;
  }
}

/* ── Inline edit ─────────────────────────────────────────── */

.rx-chat-msg.is-editing .rx-chat-msg__menu {
  display: none;
}

.rx-chat-msg__editor {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 12rem;
  width: min(100%, 22rem);
}

.rx-chat-msg__edit-input {
  width: 100%;
  min-height: 4.5rem;
  box-sizing: border-box;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--ah-border);
  border-radius: var(--ah-radius-md);
  background: var(--ah-surface);
  color: var(--ah-ink);
  font: var(--ah-weight-regular) var(--ah-text-base) / 1.5 var(--ah-font);
  resize: vertical;
  transition: border-color var(--ah-dur-1), box-shadow var(--ah-dur-1);
}

.rx-chat-msg__edit-input:focus {
  outline: none;
  border-color: var(--ah-accent);
  box-shadow: var(--ah-focus-ring);
}

.rx-chat-msg__edit-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.375rem;
}

.rx-chat-msg__edit-actions .case-btn {
  height: 2rem;
  padding: 0 0.75rem;
  font-size: var(--ah-text-xs);
}

/* ── Composer ────────────────────────────────────────────── */

.rx-chat__composer {
  position: sticky;
  bottom: 0;
  flex-shrink: 0;
  margin: 0;
  padding: 0.75rem 0.875rem 0.875rem;
  border-top: 1px solid var(--ah-border);
  background: var(--ah-surface);
}

/* Raised bezel field: a tray around a white core. */
.rx-chat__field {
  display: flex;
  flex-direction: column;
  border: 0;
  border-radius: var(--ah-radius-lg);
  background: var(--ah-surface);
  box-shadow:
    0 0 0 4px var(--ah-shell-bg),
    0 0 0 5px rgba(10, 26, 28, 0.07),
    0 6px 16px -8px rgba(10, 26, 28, 0.18),
    var(--ah-inner-highlight);
  transition: box-shadow var(--ah-dur-2) var(--ah-ease-out);
}

.rx-chat__field:hover {
  box-shadow:
    0 0 0 4px var(--ah-shell-bg),
    0 0 0 5px rgba(10, 26, 28, 0.12),
    0 8px 20px -8px rgba(10, 26, 28, 0.2),
    var(--ah-inner-highlight);
}

.rx-chat__field:focus-within {
  box-shadow:
    0 0 0 4px rgba(45, 212, 191, 0.16),
    0 0 0 5px color-mix(in srgb, var(--ah-accent) 55%, transparent),
    0 8px 22px -8px var(--ah-accent-glow),
    var(--ah-inner-highlight);
}

.rx-chat__input {
  display: block;
  width: 100%;
  min-height: 2.75rem;
  max-height: 7.5rem;
  box-sizing: border-box;
  margin: 0;
  padding: 0.625rem 0.75rem 0.25rem;
  border: 0;
  background: transparent;
  color: var(--ah-ink);
  font: var(--ah-weight-regular) var(--ah-text-base) / 1.5 var(--ah-font);
  resize: none;
}

.rx-chat__input:focus,
.rx-chat__input:focus-visible {
  outline: none;
}

.rx-chat__field-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.25rem 0.375rem 0.375rem 0.75rem;
}

.rx-chat__hint {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--ah-text-2xs);
  color: var(--ah-ink-4);
}

.rx-chat__send {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  flex-shrink: 0;
  height: 2rem;
  padding: 0 0.875rem 0 0.75rem;
  border: 0;
  border-radius: var(--ah-radius-pill);
  background: var(--ah-accent-grad);
  color: #fff;
  font-family: inherit;
  font-size: var(--ah-text-sm);
  font-weight: var(--ah-weight-medium);
  cursor: pointer;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.22),
    0 0 0 1px rgba(8, 90, 82, 0.9),
    0 6px 14px -6px rgba(13, 122, 112, 0.6);
  transition: background var(--ah-dur-1), box-shadow var(--ah-dur-2), transform var(--ah-dur-2) var(--ah-ease-spring), opacity var(--ah-dur-1);
}

.rx-chat__send svg {
  transition: transform var(--ah-dur-3) var(--ah-ease-spring);
}

.rx-chat__send:hover {
  background: var(--ah-accent-grad-hover);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.22),
    0 0 0 1px rgba(8, 90, 82, 0.9),
    0 10px 20px -8px rgba(13, 122, 112, 0.65);
}

.rx-chat__send:hover svg {
  transform: translate(1px, -1px);
}

.rx-chat__send:active:not(:disabled) {
  transform: scale(0.97);
}

.rx-chat__send:focus-visible {
  outline: none;
  box-shadow: 0 0 0 1px var(--ah-surface), 0 0 0 3px var(--ah-accent);
}

.rx-chat__send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Stacked layout (chat below the main column) ─────────── */

@media (max-width: 1100px) {
  .rx-chat {
    height: min(34rem, 78dvh);
  }
}

@media (max-width: 640px) {
  .rx-chat__thread {
    padding: 0.875rem 1rem;
  }

  .rx-chat__composer {
    padding: 0.625rem 0.75rem 0.75rem;
    padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
  }

  .rx-chat__send {
    height: 2.75rem;
    padding: 0 1rem;
  }

  .rx-chat-msg {
    max-width: 92%;
  }
}

@media (pointer: coarse) {
  .rx-chat__hint {
    visibility: hidden;
  }
}