*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}.app{padding:20px;min-height:100vh}.container{max-width:400px;margin:0 auto;background:#fff;border-radius:20px;box-shadow:0 20px 40px #0000001a;overflow:hidden}.header{background:linear-gradient(135deg,#ff6b6b,#ee5a24);color:#fff;padding:20px;text-align:center}.header h1{font-size:20px;margin-bottom:5px}.header p{opacity:.9;font-size:14px}.search-container{padding:20px;background:#f8f9fa}.search-box{width:100%;padding:12px 16px;border:2px solid #e9ecef;border-radius:25px;font-size:16px;outline:none;transition:all .3s ease}.search-box:focus{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.content{padding:20px;max-height:400px;overflow-y:auto}.add-btn{position:fixed;bottom:30px;right:30px;width:60px;height:60px;background:linear-gradient(135deg,#ff6b6b,#ee5a24);border:none;border-radius:50%;color:#fff;font-size:24px;cursor:pointer;box-shadow:0 8px 25px #ee5a2466;transition:all .3s ease;z-index:1000}.add-btn:hover{transform:scale(1.1)}.customer-item{background:#f8f9fa;border-radius:15px;padding:15px;margin-bottom:15px;border-left:4px solid #ff6b6b;transition:all .3s ease}.customer-item:hover{transform:translateY(-2px);box-shadow:0 8px 25px #0000001a}.customer-name{font-weight:700;color:#2c3e50;margin-bottom:5px}.customer-amount{color:#e74c3c;font-size:18px;font-weight:700}.customer-date{color:#7f8c8d;font-size:12px;margin-top:5px}.customer-actions{display:flex;gap:10px;margin-top:10px}.action-btn{padding:8px 16px;border:none;border-radius:20px;font-size:12px;cursor:pointer;transition:all .3s ease}.btn-paid{background:#00b894;color:#fff}.btn-update{background:#74b9ff;color:#fff}.btn-view{background:#fdcb6e;color:#fff}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#000c;z-index:2000;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.modal-content{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#fff;padding:30px;border-radius:20px;width:90%;max-width:400px;max-height:90vh;overflow-y:auto}.modal-header{text-align:center;margin-bottom:20px;color:#2c3e50}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;color:#2c3e50;font-weight:500}.form-group input{width:100%;padding:12px;border:2px solid #e9ecef;border-radius:10px;font-size:16px;outline:none;transition:border-color .3s ease}.form-group input:focus{border-color:#667eea}.camera-btn{width:100%;padding:15px;background:linear-gradient(135deg,#74b9ff,#0984e3);color:#fff;border:none;border-radius:10px;font-size:16px;cursor:pointer;margin-bottom:15px;transition:all .3s ease}.btn-group{display:flex;gap:10px;margin-top:20px}.btn{flex:1;padding:12px;border:none;border-radius:10px;font-size:16px;cursor:pointer;transition:all .3s ease}.btn-save{background:linear-gradient(135deg,#00b894,#00a085);color:#fff}.btn-cancel{background:#ddd;color:#666}.image-preview{width:100%;max-height:200px;object-fit:cover;border-radius:10px;margin-top:10px}.empty-state{text-align:center;padding:40px 20px;color:#7f8c8d}.close-btn{position:absolute;top:15px;right:15px;background:none;border:none;font-size:24px;cursor:pointer;color:#999}