/* ── Inbox Shell ─────────────────────────────────────────────── */
.inbox-shell {
  display: flex; height: calc(100vh - var(--topbar-height) - 48px);
  min-height: 480px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden;
}

/* ── Conversation List ────────────────────────────────────────── */
.inbox-list {
  width: 300px; min-width: 300px; border-right: 1px solid var(--border);
  display: flex; flex-direction: column; overflow: hidden; flex-shrink: 0;
}
.inbox-list-header {
  padding: var(--space-4) var(--space-4) var(--space-3);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated); flex-shrink: 0;
}
.inbox-list-title { font-size: var(--text-sm); font-weight: 700; color: var(--text-primary); margin-bottom: var(--space-3); }
.inbox-search {
  position: relative; display: flex; align-items: center;
}
.inbox-search-icon {
  position: absolute; left: 10px; color: var(--text-muted);
  display: flex; align-items: center;
}
.inbox-search-icon svg { width: 14px; height: 14px; }
.inbox-search input {
  width: 100%; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 8px 10px 8px 32px;
  color: var(--text-primary); font-size: var(--text-xs); font-family: var(--font-sans);
  outline: none; transition: border-color var(--transition);
}
.inbox-search input:focus { border-color: var(--accent-violet); }
.inbox-search input::placeholder { color: var(--text-muted); }

.inbox-conversations { flex: 1; overflow-y: auto; }
.conversation-item {
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--border);
  cursor: pointer; transition: background var(--transition); position: relative;
}
.conversation-item:hover { background: var(--hover-row); }
.conversation-item.active { background: var(--accent-violet-dim); border-right: 2px solid var(--accent-violet); }
.conversation-item.unread .convo-preview { color: var(--text-secondary); font-weight: 500; }
.convo-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--gradient-primary); display: flex; align-items: center;
  justify-content: center; font-size: var(--text-xs); font-weight: 700;
  color: white; flex-shrink: 0;
}
.convo-body { flex: 1; min-width: 0; }
.convo-top { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-2); margin-bottom: 2px; }
.convo-name { font-size: var(--text-sm); font-weight: 600; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.convo-time { font-size: var(--text-xs); color: var(--text-muted); flex-shrink: 0; }
.convo-preview {
  font-size: var(--text-xs); color: var(--text-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.convo-unread-badge {
  position: absolute; top: var(--space-3); right: var(--space-4);
  background: var(--accent-violet); color: white;
  font-size: 10px; font-weight: 700; min-width: 18px; height: 18px;
  border-radius: 9px; display: flex; align-items: center; justify-content: center; padding: 0 4px;
}

/* ── Message Thread ───────────────────────────────────────────── */
.inbox-thread {
  flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0;
}
.thread-header {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated); flex-shrink: 0;
}
.thread-lead-info { flex: 1; min-width: 0; }
.thread-lead-name { font-size: var(--text-base); font-weight: 700; color: var(--text-primary); }
.thread-lead-meta { font-size: var(--text-xs); color: var(--text-muted); margin-top: 1px; }
.thread-messages { flex: 1; overflow-y: auto; padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-4); }

/* Message bubbles */
.message-row { display: flex; gap: var(--space-3); max-width: 75%; }
.message-row.inbound { align-self: flex-start; }
.message-row.outbound { align-self: flex-end; flex-direction: row-reverse; }
.message-bubble {
  padding: var(--space-3) var(--space-4); border-radius: var(--radius-lg);
  font-size: var(--text-sm); line-height: var(--leading-relaxed);
}
.message-row.inbound .message-bubble {
  background: var(--bg-elevated); color: var(--text-secondary);
  border: 1px solid var(--border); border-bottom-left-radius: 4px;
}
.message-row.outbound .message-bubble {
  background: var(--accent-violet-dim); color: var(--text-primary);
  border: 1px solid rgba(124,58,237,0.3); border-bottom-right-radius: 4px;
}
.message-meta {
  display: flex; align-items: center; gap: var(--space-2); margin-top: 4px;
  font-size: var(--text-xs); color: var(--text-muted);
}
.message-row.outbound .message-meta { justify-content: flex-end; }
.ai-badge {
  display: inline-flex; align-items: center; gap: 3px;
  padding: 1px 6px; border-radius: var(--radius-full);
  background: var(--accent-violet-dim); border: 1px solid rgba(124,58,237,0.3);
  color: var(--accent-violet-light); font-size: 10px; font-weight: 700;
}

/* Reply area */
.thread-reply {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border); background: var(--bg-elevated); flex-shrink: 0;
}
.thread-reply textarea {
  width: 100%; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: var(--space-3) var(--space-4);
  color: var(--text-primary); font-size: var(--text-sm); font-family: var(--font-sans);
  outline: none; resize: none; min-height: 80px; max-height: 160px;
  transition: border-color var(--transition); line-height: var(--leading-relaxed);
}
.thread-reply textarea:focus { border-color: var(--accent-violet); }
.thread-reply-actions { display: flex; align-items: center; justify-content: flex-end; gap: var(--space-3); margin-top: var(--space-3); }

/* Empty thread */
.inbox-empty {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  justify-content: center; text-align: center; padding: var(--space-8);
}

/* Mobile inbox */
@media (max-width: 768px) {
  .inbox-shell { flex-direction: column; height: auto; min-height: auto; }
  .inbox-list { width: 100%; min-width: 0; border-right: none; border-bottom: 1px solid var(--border); max-height: 340px; }
  .inbox-thread { min-height: 400px; }
  .message-row { max-width: 88%; }
  .inbox-list.hidden-mobile { display: none; }
  .inbox-thread.hidden-mobile { display: none; }
}