/**
 * Messages View - Mobile First
 *
 * @package PCC_Woo
 * @since 1.5.0
 */

/* ============================================
   Base Layout (Mobile First)
   ============================================ */

.messages-page {
  display: flex;
  flex-direction: column;
  /* Account for mobile header (56px) + mobile bottom nav (60px) */
  height: calc(100vh - var(--ins-header-height-mobile, 56px) - 60px);
  background-color: var(--ins-gray-50, #f9fafb);
}

/* Fullscreen thread view on mobile needs different height calculation */
.messages-page--thread-open {
  position: fixed;
  top: var(--ins-header-height-mobile, 56px);
  left: 0;
  right: 0;
  bottom: 60px; /* Mobile bottom nav */
  height: auto;
  z-index: 100;
}

.messages-thread--fullscreen {
  height: 100%;
}

.messages-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px 12px;
  background-color: #fff;
  border-bottom: 1px solid var(--ins-gray-200, #e5e7eb);
}

.messages-header__title {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--ins-gray-900, #111827);
}

.messages-header__new-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  color: #fff;
  background-color: var(--ins-primary-600, #2563eb);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.messages-header__new-btn:hover {
  background-color: var(--ins-primary-700, #1d4ed8);
}

.messages-header__new-btn svg {
  width: 20px;
  height: 20px;
}

.messages-header__new-text {
  display: none;
}

.messages-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ============================================
   Threads List (Mobile: Full width)
   ============================================ */

.messages-threads {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: #fff;
  overflow: hidden;
}

.messages-threads__search {
  padding: 12px 16px;
  border-bottom: 1px solid var(--ins-gray-100, #f3f4f6);
}

.messages-threads__search-input {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--ins-gray-900, #111827);
  background-color: var(--ins-gray-100, #f3f4f6);
  border: none;
  border-radius: 8px;
  outline: none;
  transition: background-color 0.2s ease;
}

.messages-threads__search-input:focus {
  background-color: #fff;
  box-shadow: 0 0 0 2px var(--ins-primary-200, #bfdbfe);
}

.messages-threads__list {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* Thread Item */
.messages-thread-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  border-bottom: 1px solid var(--ins-gray-100, #f3f4f6);
  transition: background-color 0.2s ease;
}

.messages-thread-item:last-child {
  border-bottom: none;
}

.messages-thread-item:hover {
  background-color: var(--ins-gray-50, #f9fafb);
}

.messages-thread-item--active {
  background-color: var(--ins-primary-50, #eff6ff);
}

.messages-thread-item--unread {
  background-color: #fff;
}

.messages-thread-item--unread::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--ins-primary-500, #3b82f6);
}

.messages-thread-item__avatar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background-color: var(--ins-gray-100, #f3f4f6);
  border-radius: 50%;
}

.messages-thread-item__avatar svg {
  width: 20px;
  height: 20px;
  color: var(--ins-gray-500, #6b7280);
}

.messages-thread-item__content {
  flex: 1;
  min-width: 0;
}

.messages-thread-item__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}

.messages-thread-item__subject {
  font-size: 15px;
  font-weight: 500;
  color: var(--ins-gray-900, #111827);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.messages-thread-item--unread .messages-thread-item__subject {
  font-weight: 600;
}

.messages-thread-item__time {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--ins-gray-400, #9ca3af);
}

.messages-thread-item__preview {
  margin: 0;
  font-size: 14px;
  color: var(--ins-gray-500, #6b7280);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.4;
}

.messages-thread-item__badge {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background-color: var(--ins-primary-500, #3b82f6);
  border-radius: 11px;
  margin-top: 10px;
}

/* ============================================
   Thread Panel (Mobile: Full screen)
   ============================================ */

.messages-thread {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  display: none;
  flex-direction: column;
  background-color: #fff;
}

.messages-thread--fullscreen {
  display: flex;
}

/* Thread Header */
.messages-thread__header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background-color: #fff;
  border-bottom: 1px solid var(--ins-gray-200, #e5e7eb);
}

.messages-thread__back {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 44px;
  height: 44px;
  padding: 0 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ins-primary-600, #2563eb);
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.messages-thread__back:hover {
  background-color: var(--ins-primary-50, #eff6ff);
}

.messages-thread__back:active {
  background-color: var(--ins-primary-100, #dbeafe);
}

.messages-thread__back svg {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: currentColor;
}

.messages-thread__back-text {
  display: none;
}

/* Show back text on mobile for better UX */
@media (max-width: 767px) {
  .messages-thread__back-text {
    display: inline;
  }
}

.messages-thread__info {
  flex: 1;
  min-width: 0;
}

.messages-thread__subject {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--ins-gray-900, #111827);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.messages-thread__context {
  font-size: 13px;
  color: var(--ins-gray-500, #6b7280);
}

/* Thread Closed Status Badge */
.messages-thread__status {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 12px;
  margin-left: 8px;
}

.messages-thread__status--closed {
  background-color: var(--ins-gray-100, #f3f4f6);
  color: var(--ins-gray-600, #4b5563);
}

.messages-thread__status--closed::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--ins-gray-400, #9ca3af);
  border-radius: 50%;
}

.messages-thread__options {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.messages-thread__options:hover {
  background-color: var(--ins-gray-100, #f3f4f6);
}

.messages-thread__options svg {
  width: 20px;
  height: 20px;
  color: var(--ins-gray-500, #6b7280);
}

/* Messages List */
.messages-thread__messages {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  background-color: var(--ins-gray-50, #f9fafb);
}

/* Single Message */
.messages-message {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  margin-bottom: 12px;
  max-width: 85%;
}

.messages-message--own {
  flex-direction: row-reverse;
  margin-left: auto;
}

.messages-message--other {
  margin-right: auto;
}

.messages-message--system {
  max-width: 100%;
  justify-content: center;
  margin: 16px 0;
}

/* Avatar */
.messages-message__avatar {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  overflow: hidden;
  background-color: var(--ins-primary-100, #dbeafe);
  display: flex;
  align-items: center;
  justify-content: center;
}

.messages-message__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.messages-message__avatar span {
  font-size: 14px;
  font-weight: 600;
  color: var(--ins-primary-600, #2563eb);
}

/* Message Bubble */
.messages-message__bubble {
  position: relative;
  padding: 10px 14px;
  background-color: #fff;
  border-radius: 16px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.messages-message--own .messages-message__bubble {
  background-color: var(--ins-primary-600, #2563eb);
  color: #fff;
}

.messages-message--other .messages-message__bubble {
  border-bottom-left-radius: 4px;
}

.messages-message--own .messages-message__bubble {
  border-bottom-right-radius: 4px;
}

.messages-message__sender {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--ins-primary-600, #2563eb);
}

.messages-message__content {
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
}

.messages-message__content a {
  color: inherit;
  text-decoration: underline;
}

.messages-message--own .messages-message__content a {
  color: #fff;
}

.messages-message__time {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  color: var(--ins-gray-400, #9ca3af);
  text-align: right;
}

.messages-message--own .messages-message__time {
  color: rgba(255, 255, 255, 0.7);
}

/* System Message */
.messages-message__system-content {
  padding: 8px 16px;
  font-size: 13px;
  color: var(--ins-gray-500, #6b7280);
  background-color: var(--ins-gray-100, #f3f4f6);
  border-radius: 8px;
}

/* ============================================
   Composer
   ============================================ */

.messages-thread__composer {
  padding: 12px 16px;
  background-color: #fff;
  border-top: 1px solid var(--ins-gray-200, #e5e7eb);
}

.messages-composer {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.messages-composer__input-wrap {
  flex: 1;
}

.messages-composer__input {
  width: 100%;
  padding: 10px 14px;
  font-size: 15px;
  color: var(--ins-gray-900, #111827);
  background-color: var(--ins-gray-100, #f3f4f6);
  border: none;
  border-radius: 20px;
  outline: none;
  resize: none;
  line-height: 1.4;
  max-height: 120px;
}

.messages-composer__input:focus {
  background-color: #fff;
  box-shadow: 0 0 0 2px var(--ins-primary-200, #bfdbfe);
}

.messages-composer__input::placeholder {
  color: var(--ins-gray-400, #9ca3af);
}

.messages-composer__send {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  color: #fff;
  background-color: var(--ins-primary-600, #2563eb);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
}

.messages-composer__send:disabled {
  background-color: var(--ins-gray-300, #d1d5db);
  cursor: not-allowed;
}

.messages-composer__send:not(:disabled):hover {
  background-color: var(--ins-primary-700, #1d4ed8);
  transform: scale(1.05);
}

.messages-composer__send svg {
  width: 20px;
  height: 20px;
}

.messages-composer__send--sending {
  animation: pulse-send 1s infinite;
}

@keyframes pulse-send {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

/* Disabled Composer (Closed Thread) */
.messages-composer--disabled {
  pointer-events: auto;
}

.messages-composer__closed-notice {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 20px;
  text-align: center;
  background-color: var(--ins-gray-50, #f9fafb);
  border-radius: 12px;
  border: 1px dashed var(--ins-gray-300, #d1d5db);
}

.messages-composer__closed-notice svg {
  color: var(--ins-gray-400, #9ca3af);
}

.messages-composer__closed-notice span {
  font-size: 14px;
  color: var(--ins-gray-600, #4b5563);
  line-height: 1.5;
}

.messages-composer__closed-notice .btn {
  margin-top: 4px;
}

/* Attachment Button */
.messages-composer__attach {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: var(--ins-gray-500, #6b7280);
  transition: all 0.2s ease;
}

.messages-composer__attach:hover {
  background-color: var(--ins-gray-100, #f3f4f6);
  color: var(--ins-primary-600, #2563eb);
}

.messages-composer__attach svg {
  width: 20px;
  height: 20px;
}

/* Attachment Preview (before sending) */
.messages-composer__attachments {
  display: none;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 0;
}

.messages-attachment-preview {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background-color: var(--ins-gray-100, #f3f4f6);
  border-radius: 6px;
  font-size: 12px;
  color: var(--ins-gray-700, #374151);
}

.messages-attachment-preview__icon {
  display: flex;
  color: var(--ins-gray-500, #6b7280);
}

.messages-attachment-preview__name {
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.messages-attachment-preview__remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: var(--ins-gray-400, #9ca3af);
  transition: all 0.2s ease;
}

.messages-attachment-preview__remove:hover {
  background-color: var(--ins-gray-200, #e5e7eb);
  color: var(--ins-red-500, #ef4444);
}

/* Message Attachments (in message bubble) */
.messages-message__attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.messages-attachment {
  display: block;
  text-decoration: none;
  border-radius: 8px;
  overflow: hidden;
  transition: opacity 0.2s ease;
}

.messages-attachment:hover {
  opacity: 0.9;
}

.messages-attachment__image {
  display: block;
  max-width: 200px;
  max-height: 150px;
  border-radius: 8px;
  object-fit: cover;
}

.messages-attachment__file {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background-color: rgba(0, 0, 0, 0.05);
  border-radius: 8px;
  color: inherit;
}

.messages-attachment--own .messages-attachment__file {
  background-color: rgba(255, 255, 255, 0.2);
}

.messages-attachment__name {
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  font-weight: 500;
}

.messages-attachment__size {
  font-size: 11px;
  opacity: 0.7;
}

/* ============================================
   Empty States
   ============================================ */

.messages-empty {
  display: none;
}

.messages-empty-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 48px 24px;
  text-align: center;
}

.messages-empty-list__icon {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
  color: var(--ins-gray-300, #d1d5db);
}

.messages-empty-list p {
  margin: 0 0 16px;
  font-size: 15px;
  color: var(--ins-gray-500, #6b7280);
}

.messages-empty-thread {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 24px;
  text-align: center;
}

.messages-empty-thread p {
  margin: 0;
  font-size: 14px;
  color: var(--ins-gray-400, #9ca3af);
}

/* ============================================
   Floating Message Button
   ============================================ */

.floating-message-btn {
  position: fixed;
  bottom: 80px; /* Above mobile bottom nav */
  right: 20px;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  padding: 0;
  background-color: var(--ins-primary-600, #2563eb);
  color: #fff;
  border: none;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
  cursor: pointer;
  transition: all 0.3s ease;
}

.floating-message-btn:hover {
  background-color: var(--ins-primary-700, #1d4ed8);
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.45);
}

.floating-message-btn:active {
  transform: scale(0.95);
}

.floating-message-btn svg {
  width: 24px;
  height: 24px;
}

.floating-message-btn__badge {
  position: absolute;
  top: -4px;
  right: -4px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background-color: var(--ins-status-error, #ef4444);
  border: 2px solid #fff;
  border-radius: 11px;
  line-height: 1;
}

/* Inline floating button (for detail pages) */
.floating-message-btn--inline {
  position: absolute;
  bottom: auto;
  right: auto;
  width: 48px;
  height: 48px;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.floating-message-btn--inline svg {
  width: 20px;
  height: 20px;
}

.floating-message-btn--inline .floating-message-btn__badge {
  top: -2px;
  right: -2px;
  min-width: 18px;
  height: 18px;
  font-size: 10px;
}

/* Floating button container for detail pages */
.floating-message-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

@media (min-width: 768px) {
  .floating-message-btn {
    bottom: 32px;
    right: 32px;
    width: 60px;
    height: 60px;
  }

  .floating-message-btn svg {
    width: 26px;
    height: 26px;
  }
}

/* ============================================
   Loading & Error States
   ============================================ */

.messages-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
}

.messages-loading__spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--ins-gray-200, #e5e7eb);
  border-top-color: var(--ins-primary-500, #3b82f6);
  border-radius: 50%;
  animation: messages-spin 0.8s linear infinite;
}

@keyframes messages-spin {
  to {
    transform: rotate(360deg);
  }
}

.messages-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 48px 24px;
  text-align: center;
}

.messages-error p {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--ins-gray-500, #6b7280);
}

/* ============================================
   Thread Options Modal
   ============================================ */

.messages-thread-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.messages-thread-option {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--ins-gray-700, #374151);
  background-color: var(--ins-gray-50, #f9fafb);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.messages-thread-option:hover {
  background-color: var(--ins-gray-100, #f3f4f6);
}

.messages-thread-option svg {
  width: 20px;
  height: 20px;
  color: var(--ins-gray-500, #6b7280);
}

/* ============================================
   New Thread Form
   ============================================ */

.messages-new-thread-form .form-group {
  margin-bottom: 16px;
}

.messages-new-thread-form label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ins-gray-700, #374151);
}

.messages-new-thread-form .form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 15px;
  color: var(--ins-gray-900, #111827);
  background-color: #fff;
  border: 1px solid var(--ins-gray-300, #d1d5db);
  border-radius: 8px;
  outline: none;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.messages-new-thread-form .form-control:focus {
  border-color: var(--ins-primary-500, #3b82f6);
  box-shadow: 0 0 0 3px var(--ins-primary-100, #dbeafe);
}

.messages-new-thread-form textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

.messages-new-thread-form .form-text {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--ins-gray-500, #6b7280);
}

/* Context Badge in New Thread Modal */
.messages-context-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  margin-bottom: 16px;
  background-color: var(--ins-primary-50, #eff6ff);
  border: 1px solid var(--ins-primary-200, #bfdbfe);
  border-radius: 8px;
  color: var(--ins-primary-700, #1d4ed8);
  font-size: 14px;
  font-weight: 500;
}

.messages-context-badge svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

/* Contact About Button (used in other views) */
.btn-contact-about {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ins-primary-600, #2563eb);
  background-color: var(--ins-primary-50, #eff6ff);
  border: 1px solid var(--ins-primary-200, #bfdbfe);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-contact-about:hover {
  background-color: var(--ins-primary-100, #dbeafe);
  color: var(--ins-primary-700, #1d4ed8);
}

.btn-contact-about svg {
  width: 18px;
  height: 18px;
}

/* Full-width variant */
.btn-contact-about.btn-full {
  width: 100%;
  justify-content: center;
  margin-top: 12px;
}

/* Message card style for detail pages */
.detail-related-message {
  background-color: var(--ins-primary-50, #eff6ff) !important;
  border: 1px solid var(--ins-primary-200, #bfdbfe);
}

.detail-related-message .detail-related-icon {
  background-color: var(--ins-primary-100, #dbeafe);
  color: var(--ins-primary-600, #2563eb);
}

.detail-related-message:hover {
  background-color: var(--ins-primary-100, #dbeafe) !important;
  border-color: var(--ins-primary-300, #93c5fd);
}

/* ============================================
   Desktop Styles (min-width: 768px)
   ============================================ */

@media (min-width: 768px) {
  .messages-page {
    /* Desktop: only header, no bottom nav */
    height: calc(100vh - var(--ins-header-height, 64px));
  }

  .messages-page--thread-open {
    position: static;
    height: calc(100vh - var(--ins-header-height, 64px));
    bottom: auto;
  }

  .messages-header {
    padding: 20px 24px 16px;
  }

  .messages-header__title {
    font-size: 24px;
  }

  .messages-header__new-btn {
    width: auto;
    padding: 0 16px;
    gap: 8px;
    border-radius: 8px;
    height: 40px;
  }

  .messages-header__new-text {
    display: inline;
    font-size: 14px;
    font-weight: 500;
  }

  .messages-container {
    flex-direction: row;
    height: calc(100% - 76px);
  }

  /* Threads Sidebar */
  .messages-threads {
    flex: 0 0 320px;
    border-right: 1px solid var(--ins-gray-200, #e5e7eb);
  }

  /* Thread Panel */
  .messages-thread {
    position: relative;
    flex: 1;
    display: none;
    z-index: auto;
  }

  .messages-thread[style*="display: flex"] {
    display: flex !important;
  }

  .messages-thread__back {
    display: none;
  }

  /* Empty Panel (Desktop) */
  .messages-empty {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--ins-gray-50, #f9fafb);
  }

  .messages-empty__content {
    text-align: center;
    padding: 40px;
  }

  .messages-empty__icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    color: var(--ins-gray-300, #d1d5db);
  }

  .messages-empty__content h3 {
    margin: 0 0 8px;
    font-size: 18px;
    font-weight: 600;
    color: var(--ins-gray-700, #374151);
  }

  .messages-empty__content p {
    margin: 0;
    font-size: 14px;
    color: var(--ins-gray-500, #6b7280);
  }

  .messages-message {
    max-width: 65%;
  }

  .messages-thread__messages {
    padding: 24px;
  }

  .messages-thread__composer {
    padding: 16px 24px;
  }
}

/* ============================================
   Large Desktop (min-width: 1024px)
   ============================================ */

@media (min-width: 1024px) {
  .messages-threads {
    flex: 0 0 360px;
  }

  .messages-message {
    max-width: 55%;
  }
}

/* ============================================
   Bottom Navigation Offset (Mobile)
   ============================================ */

@media (max-width: 767px) {
  .messages-page {
    height: calc(100vh - 60px - 64px); /* Header + bottom nav */
    padding-bottom: 64px;
  }

  .messages-thread {
    bottom: 64px; /* Account for bottom nav */
  }
}