/* =========================================================
   Messages app — css/apps/messages.css
   All selectors scoped under .app-messages to prevent leaks.
   Adapts to light/dark via CSS custom properties from reset.css.
   ========================================================= */

/* ── Root layout ──────────────────────────────────────────────────────────── */
.app-messages .msg-root {
  display: flex;
  height: 100%;
  background: var(--win-bg);
  color: var(--win-fg);
  font-family: var(--font-system);
  overflow: hidden;
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.app-messages .msg-sidebar {
  display: flex;
  flex-direction: column;
  width: 240px;
  flex: 0 0 240px;
  background: var(--sidebar-bg);
  border-right: 0.5px solid var(--sidebar-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
}

/* Search bar */
.app-messages .msg-search-wrap {
  padding: 10px 10px 8px;
  flex: 0 0 auto;
  border-bottom: 0.5px solid var(--sidebar-border);
}

.app-messages .msg-search-input {
  width: 100%;
  background: var(--control-bg);
  border-radius: 8px;
  padding: 5px 11px;
  font-size: 13px;
  color: var(--win-fg);
  border: none;
  outline: none;
  transition: box-shadow 0.15s;
}

.app-messages .msg-search-input::placeholder {
  color: var(--win-muted);
}

.app-messages .msg-search-input:focus {
  box-shadow: 0 0 0 2.5px rgba(10, 132, 255, 0.35);
}

/* Conversation list */
.app-messages .msg-conv-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}

.app-messages .msg-conv-empty {
  padding: 22px 16px;
  font-size: 13px;
  color: var(--win-muted);
  text-align: center;
}

.app-messages .msg-conv-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 10px;
  margin: 1px 6px;
  cursor: default;
  transition: background 0.1s;
  min-width: 0;
}

.app-messages .msg-conv-row:hover {
  background: var(--win-hover);
}

.app-messages .msg-conv-row.active {
  background: var(--accent);
}

.app-messages .msg-conv-row.active .msg-conv-name,
.app-messages .msg-conv-row.active .msg-conv-preview,
.app-messages .msg-conv-row.active .msg-conv-time {
  color: #fff;
}

/* Avatar circle */
.app-messages .msg-conv-avatar {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #30d158);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  line-height: 1;
}

/* Body */
.app-messages .msg-conv-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.app-messages .msg-conv-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 4px;
}

.app-messages .msg-conv-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--win-fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-messages .msg-conv-time {
  font-size: 11px;
  color: var(--win-muted);
  white-space: nowrap;
  flex: 0 0 auto;
}

.app-messages .msg-conv-preview {
  font-size: 12px;
  color: var(--win-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Chat pane ───────────────────────────────────────────────────────────── */
.app-messages .msg-chat-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--win-bg);
}

/* Header */
.app-messages .msg-chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 0.5px solid var(--win-border);
  background: var(--sidebar-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  flex: 0 0 auto;
}

.app-messages .msg-header-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #30d158);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex: 0 0 34px;
}

.app-messages .msg-header-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.app-messages .msg-header-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--win-fg);
  line-height: 1.2;
}

.app-messages .msg-header-status {
  font-size: 11px;
  color: var(--win-muted);
}

/* Thread */
.app-messages .msg-thread {
  flex: 1;
  overflow-y: auto;
  padding: 16px 16px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* Empty state */
.app-messages .msg-thread-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--win-muted);
  font-size: 14px;
  margin: auto;
}

.app-messages .msg-thread-empty-glyph {
  font-size: 48px;
  line-height: 1;
}

/* Date separator */
.app-messages .msg-date-sep {
  text-align: center;
  font-size: 11px;
  color: var(--win-muted);
  margin: 10px 0 4px;
  font-weight: 500;
}

/* Bubble wrapper */
.app-messages .msg-bubble-wrap {
  display: flex;
  flex-direction: column;
  max-width: 72%;
  gap: 2px;
}

.app-messages .msg-bubble-wrap.sent {
  align-self: flex-end;
  align-items: flex-end;
}

.app-messages .msg-bubble-wrap.received {
  align-self: flex-start;
  align-items: flex-start;
}

/* Bubbles */
.app-messages .msg-bubble {
  padding: 8px 13px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.4;
  word-break: break-word;
}

.app-messages .msg-bubble-wrap.sent .msg-bubble {
  background: linear-gradient(180deg, #25c3ff, #0a84ff);
  color: #fff;
  border-bottom-right-radius: 5px;
}

.app-messages .msg-bubble-wrap.received .msg-bubble {
  background: var(--control-bg);
  color: var(--win-fg);
  border-bottom-left-radius: 5px;
}

/* Bubble timestamp */
.app-messages .msg-bubble-time {
  font-size: 10.5px;
  color: var(--win-muted);
  padding: 0 4px;
  opacity: 0;
  transition: opacity 0.15s;
}

.app-messages .msg-bubble-wrap:hover .msg-bubble-time {
  opacity: 1;
}

/* ── Composer ─────────────────────────────────────────────────────────────── */
.app-messages .msg-composer-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px 10px;
  border-top: 0.5px solid var(--win-border);
  background: var(--sidebar-bg);
  flex: 0 0 auto;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.app-messages .msg-composer-input {
  flex: 1;
  background: var(--field-bg);
  border: 0.5px solid var(--win-border);
  border-radius: 18px;
  padding: 7px 14px;
  font-size: 14px;
  color: var(--win-fg);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.app-messages .msg-composer-input::placeholder {
  color: var(--win-muted);
}

.app-messages .msg-composer-input:focus {
  border-color: rgba(10, 132, 255, 0.5);
  box-shadow: 0 0 0 2.5px rgba(10, 132, 255, 0.18);
}

/* Send button */
.app-messages .msg-send-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 30px;
  background: var(--control-bg);
  color: var(--win-muted);
  border: none;
  cursor: default;
  transition: background 0.15s, color 0.15s, transform 0.1s;
  font-size: 16px;
}

.app-messages .msg-send-btn.active {
  background: var(--accent);
  color: #fff;
  cursor: default;
}

.app-messages .msg-send-btn.active:hover {
  background: var(--accent-light);
}

.app-messages .msg-send-btn.active:active {
  transform: scale(0.92);
}

.app-messages .msg-send-arrow {
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
}

/* ── Scrollbars ───────────────────────────────────────────────────────────── */
.app-messages .msg-conv-list::-webkit-scrollbar,
.app-messages .msg-thread::-webkit-scrollbar {
  width: 5px;
}

.app-messages .msg-conv-list::-webkit-scrollbar-thumb,
.app-messages .msg-thread::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}

/* ── Dark mode tweaks ─────────────────────────────────────────────────────── */
/* Received bubble adapts automatically via --control-bg.
   Sent bubble uses a fixed blue gradient (intentional, same as macOS). */

html.dark .app-messages .msg-conv-row.active {
  background: var(--accent);
}