#sac-chat-container {
    position: fixed; bottom: 20px; right: 20px; width: 320px;
    background: #fff; border-radius: 10px; box-shadow: 0 5px 25px rgba(0,0,0,0.1);
    z-index: 9999; border: 1px solid #ddd; font-family: sans-serif; transition: 0.3s;
}
#sac-chat-header {
    background: #222; color: #fff; padding: 12px; border-radius: 10px 10px 0 0;
    cursor: pointer; display: flex; justify-content: space-between;
}
.sac-collapsed { height: 45px; overflow: hidden; width: 120px !important; }
.sac-collapsed #sac-chat-body { display: none; }
#sac-chat-messages { height: 350px; overflow-y: auto; padding: 15px; background: #fefefe; display: flex; flex-direction: column; }
.user-msg { background: #0073aa; color: #fff; padding: 8px; border-radius: 8px; margin-bottom: 10px; align-self: flex-end; }
.ai-msg { background: #f1f1f1; padding: 8px; border-radius: 8px; margin-bottom: 10px; align-self: flex-start; line-height: 1.4; }
.ai-msg a { color: #0073aa; font-weight: bold; }
#sac-chat-input-area { display: flex; padding: 10px; border-top: 1px solid #eee; }
#sac-user-input { flex-grow: 1; border: 1px solid #ddd; padding: 6px; border-radius: 4px; }
#sac-send-btn { background: #222; color: #fff; border: none; padding: 0 10px; margin-left: 5px; cursor: pointer; border-radius: 4px; }
#sac-clear-chat { font-size: 10px; margin-right: 10px; text-decoration: underline; }