.popup-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.7);display:flex;justify-content:center;align-items:center;z-index:9999}.popup-content{background:#fff;padding:20px;border-radius:5px;max-width:500px;width:90%;max-height:90vh;overflow-y:auto}.popup-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.popup-header h3{margin:0}.popup-close{background:0 0;border:none;font-size:24px;cursor:pointer;padding:0;color:#666}.popup-close:hover{color:#000}.popup-body{line-height:1.5}