:root{--wa-green:#25d366;--wa-dark-green:#075e54;--wa-light-green:#e8f5e9;--wa-teal:#128c7e;--wa-light-blue:#e3f2fd;--wa-light-gray:#f5f5f5;--wa-border-gray:#e0e0e0;--wa-text-gray:#666;--wa-text-light:#9ca3af;--wa-bg:#fff;--wa-bubble-own:#d0f0d0;--wa-bubble-received:#fff;--wa-blue:#0ea5e9}*{box-sizing:border-box}.chat-header-bar{align-items:center;background:linear-gradient(135deg,#075e54,#128c7e);background:linear-gradient(135deg,var(--wa-dark-green) 0,var(--wa-teal) 100%);border-bottom:1px solid #0000001a;box-shadow:0 2px 8px #0000001a;color:#fff;display:flex;justify-content:space-between;padding:12px 20px}.chat-header-left{align-items:center;display:flex;gap:12px}.chat-title{font-size:24px;font-weight:700;letter-spacing:-.5px;margin:0}.unread-total{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#ffffff4d;border-radius:12px;color:#fff;font-size:12px;font-weight:600;padding:4px 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