/* Layout — WhatsApp Web two-panel structure */

/* Outer wrapper: fullscreen like WhatsApp Web */
.app-wrapper {
  display: flex;
  height: 100%;
}

/* Green header bar — hidden (fullscreen mode) */
.app-header-bar {
  display: none;
}

/* Main container: sidebar + main area, full viewport */
.app-container {
  display: flex;
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

/* ── Nav Rail (far-left icon bar) ─────────────── */
.nav-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 64px;
  min-width: 64px;
  height: 100%;
  background-color: var(--WDS-surface-emphasized);
  border-right: 1px solid var(--WDS-lines-divider);
  padding: 12px 0;
  flex-shrink: 0;
}

.nav-rail-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.nav-rail-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  background: none;
  border-radius: 50%;
  cursor: pointer;
  color: var(--WDS-content-deemphasized);
  transition: background-color 120ms;
}

.nav-rail-btn:hover {
  background-color: var(--WDS-surface-highlight);
}

.nav-rail-btn.active {
  color: var(--WDS-accent);
  background-color: var(--WDS-green-50);
}

.nav-rail-btn.disabled {
  color: var(--WDS-content-disabled);
  cursor: default;
}

.nav-rail-btn.disabled:hover {
  background: none;
}

.nav-rail-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.nav-rail-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  overflow: hidden;
  background-color: var(--WDS-cool-gray-300);
  cursor: pointer;
}

.nav-rail-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Sidebar (left panel) ─────────────────────── */
.sidebar {
  display: flex;
  flex-direction: column;
  min-height: 0;
  width: 30%;
  min-width: 340px;
  max-width: 500px;
  background-color: var(--WDS-background-wash-plain);
  border-right: 1px solid var(--WDS-lines-divider);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  height: 59px;
  position: relative;
  background-color: var(--WDS-background-wash-plain);
  flex-shrink: 0;
}

.sidebar-header-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--WDS-accent);
  letter-spacing: -0.2px;
  flex: 1;
}

/* The list's own menu, as on WhatsApp Web. Home of "Exportar tudo". */
.sidebar-menu-btn {
  display: flex;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--WDS-content-deemphasized);
  border-radius: 50%;
}

.sidebar-menu-btn:hover {
  background-color: var(--WDS-surface-highlight);
}

/* Sidebar dropdown menu */
.sidebar-dropdown-menu {
  position: absolute;
  top: 48px;
  right: 12px;
  min-width: 200px;
  padding: 8px 0;
  background-color: var(--WDS-surface-elevated-default);
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, .18);
  z-index: 60;
}

.sidebar-dropdown-item {
  display: block;
  width: 100%;
  padding: 12px 24px;
  border: none;
  background: none;
  font-family: inherit;
  font-size: 15px;
  color: var(--WDS-content-default);
  text-align: left;
  cursor: pointer;
}

.sidebar-dropdown-item:hover:not(.disabled) {
  background-color: var(--WDS-surface-highlight);
}

.sidebar-dropdown-item.disabled {
  color: var(--WDS-content-disabled);
  cursor: default;
}

/* Bottom nav — hidden on desktop, shown on mobile */
.sidebar-bottom-nav {
  display: none;
  justify-content: space-around;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid var(--WDS-lines-divider);
  background-color: var(--WDS-background-wash-plain);
  flex-shrink: 0;
}

.sidebar-bottom-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 4px 16px;
  color: var(--WDS-content-deemphasized);
  font-size: 11px;
}

.sidebar-bottom-tab.active {
  color: var(--WDS-accent);
}

.sidebar-bottom-tab.disabled {
  color: var(--WDS-content-disabled);
}

.sidebar-search {
  padding: 6px 12px;
  flex-shrink: 0;
  background-color: var(--WDS-background-wash-plain);
}

.sidebar-search-input {
  width: 100%;
  height: 40px;
  padding: 0 36px 0 40px;
  border: none;
  border-radius: 50px;
  background-color: var(--WDS-surface-emphasized);
  color: var(--WDS-content-default);
  font-family: inherit;
  font-size: 13px;
  outline: none;
}

.sidebar-search-input::placeholder {
  color: var(--WDS-content-deemphasized);
}

.sidebar-search-input:focus {
  box-shadow: inset 0 0 0 2px var(--WDS-accent);
  background-color: var(--WDS-background-wash-plain);
}

.sidebar-search-wrapper {
  position: relative;
}

.sidebar-search-clear {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  color: var(--WDS-content-deemphasized);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-search-clear:hover {
  color: var(--WDS-content-default);
  background-color: var(--WDS-surface-highlight);
}

.sidebar-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--WDS-content-deemphasized);
  pointer-events: none;
}

/* Filter tags */
.sidebar-tags {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  flex-shrink: 0;
}

.sidebar-tag {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  border: 1px solid var(--WDS-lines-outline-deemphasized);
  border-radius: 50px;
  background-color: transparent;
  color: var(--WDS-content-default);
  font-family: inherit;
  font-size: 13px;
  cursor: default;
  white-space: nowrap;
}

.sidebar-tag.active {
  background-color: var(--WDS-green-50);
  color: var(--WDS-accent);
  border-color: var(--WDS-accent);
  font-weight: 500;
}

.sidebar-tag.disabled {
  color: var(--WDS-content-disabled);
}

.sidebar-tag-count {
  font-size: 11px;
}

/* Lock message right after the last conversation item */
/* Shown when a filter tab leaves the list empty. */
.sidebar-empty-filter {
  padding: 32px 24px;
  text-align: center;
  font-size: 14px;
  color: var(--WDS-content-deemphasized);
}

.sidebar-lock-message {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 14px 12px;
  margin-top: 6px;
  font-size: 12px;
  color: var(--WDS-content-deemphasized);
}

.sidebar-lock-link {
  color: var(--WDS-accent);
  cursor: pointer;
}

.sidebar-lock-link:hover {
  text-decoration: underline;
}

/* Conversation list */
.conversation-list {
  flex: 1;
  /* A flex item defaults to min-height:auto, which lets it grow to its content
     instead of scrolling. Without this the list has no scroll of its own — and
     since body is overflow:hidden, nothing scrolls at all. */
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.conversation-item {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 0 16px;
  height: 72px;
  cursor: pointer;
  transition: background-color 120ms;
}

/* Hover only where there is a real pointer. On touch, :hover latches onto the
   last element the finger passed over and never clears — dragging through the
   list would leave a trail of highlighted rows. */
@media (hover: hover) and (pointer: fine) {
  .conversation-item:hover {
    background-color: var(--WDS-surface-highlight);
  }
}

/* Touch gets its feedback from the press itself, which does clear on release. */
@media (hover: none) {
  .conversation-item:active {
    background-color: var(--WDS-surface-highlight);
  }
}

.conversation-item.active {
  background-color: var(--WDS-components-active-list-row);
}

.conversation-item-avatar {
  width: 49px;
  height: 49px;
  border-radius: 50%;
  background-color: var(--WDS-cool-gray-300);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.conversation-item-avatar svg {
  width: 100%;
  height: 100%;
  color: var(--WDS-white);
}

.conversation-item-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.conversation-item-content {
  flex: 1;
  min-width: 0;
  border-bottom: 1px solid var(--WDS-lines-divider);
  padding: 13px 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.conversation-item-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.conversation-item-name {
  font-size: 16.5px;
  color: var(--WDS-content-default);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conversation-item-time {
  font-size: 12px;
  color: var(--WDS-content-deemphasized);
  white-space: nowrap;
  flex-shrink: 0;
}

.conversation-item-bottom {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
}

.conversation-item-preview {
  font-size: 13.5px;
  color: var(--WDS-content-deemphasized);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}

.conversation-item-unread {
  font-size: 11px;
  color: var(--WDS-content-on-accent);
  background-color: var(--WDS-persistent-activity-indicator);
  border-radius: 10px;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  flex-shrink: 0;
  font-weight: 500;
}

/* ── Main area (right panel) ──────────────────── */
.main-area {
  flex: 1;
  display: flex;
  flex-direction: row;
  min-width: 0;
  position: relative;
  background-color: var(--WDS-systems-chat-background-wallpaper);
}

/* Chat wallpaper overlay (doodle pattern) */
.main-area::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/whatsapp-background.webp');
  background-repeat: repeat;
  background-size: 550px;
  opacity: 0.12;
  z-index: 0;
  pointer-events: none;
}

/* Chat header */
.chat-header {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 10px 16px;
  height: 59px;
  background-color: var(--WDS-components-surface-nav-bar);
  flex-shrink: 0;
  z-index: 1;
}

.chat-header-name {
  font-size: 16px;
  font-weight: 500;
  color: var(--WDS-content-default);
}

.chat-header-info {
  font-size: 12.5px;
  color: var(--WDS-content-deemphasized);
}

/* Chat message area */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 8px 60px;
  z-index: 1;
  position: relative;
}

/* Empty state */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  height: 100%;
  z-index: 1;
  position: relative;
  text-align: center;
  padding: 0 40px;
}

.empty-state-icon {
  width: 250px;
  height: auto;
  margin-bottom: 28px;
  opacity: 0.75;
}

.empty-state-title {
  font-size: 32px;
  font-weight: 300;
  color: var(--WDS-content-default);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.empty-state-text {
  font-size: 14px;
  color: var(--WDS-content-deemphasized);
  line-height: 1.6;
  max-width: 480px;
}

.empty-state-divider {
  width: 470px;
  max-width: 100%;
  height: 1px;
  background-color: var(--WDS-lines-divider);
  margin: 40px 0;
}

.empty-state-footer {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--WDS-content-deemphasized);
}

.empty-state-footer svg {
  width: 16px;
  height: 16px;
}

/* ── Nothing scrolls sideways, ever ────────────────────────────────────────
   A message wider than the screen is a bug in that message; the page must
   not make it the reader's problem by letting the whole chat drift. Every
   layer that could scroll clips horizontally, and a bubble breaks any word. */
html,
body,
.app-wrapper,
.app-container,
.main-area,
.chat-messages {
  overflow-x: hidden;
}

.chat-msg-bubble,
.chat-msg-content {
  min-width: 0;
  overflow-wrap: anywhere;
}