/* Base Styles - Minimal */
.ump-discount-container{max-width:500px;margin:20px auto;padding:20px;background:#fff;border:1px solid #ddd;border-radius:4px}
.ump-controls{display:flex;align-items:center;gap:15px;margin:20px 0}
.ump-slider{flex-grow:1}
.ump-value{font-weight:700;min-width:40px}
#ump-message{margin-top:15px;padding:10px;display:none}
.success{background:#cfc;border:1px solid #ada}
.error{background:#fcc;border:1px solid #daa}

/* Mobile Optimizations */
@media (max-width:768px){.ump-controls{flex-direction:column;align-items:stretch}.ump-value{text-align:center}}

/* Tool Modal */
.ump-tool-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.7);z-index:100000;display:none;align-items:center;justify-content:center}
.ump-tool-modal-content{background:#fff;max-width:800px;width:90%;max-height:80vh;border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,.2);display:flex;flex-direction:column}
.ump-tool-modal-header{padding:15px 20px;border-bottom:1px solid #eee;display:flex;justify-content:space-between;align-items:center}
.ump-tool-modal-header h3{margin:0;color:#800080}
.ump-tool-modal-close{background:none;border:none;font-size:24px;cursor:pointer;color:#666}
.ump-tool-modal-body{padding:20px;overflow-y:auto}
.ump-tool-loading{text-align:center;padding:40px;color:#666}