body{color:#333;background:#f4f6f9;margin:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}*{box-sizing:border-box}.sidebar{color:#fff;background:#1f2d3d;width:230px;height:100vh;padding-top:20px;position:fixed;top:0;left:0}.sidebar h2{text-align:center;margin-bottom:40px;font-weight:600}.sidebar a{color:#fff;cursor:pointer;padding:14px 25px;font-size:15px;text-decoration:none;transition:all .3s;display:block}.sidebar a:hover,.sidebar a.active{background:#32465a}.sidebar a i{margin-right:10px}.main{width:calc(100% - 230px);min-height:100vh;margin-left:230px}.header{background:#fff;justify-content:space-between;align-items:center;padding:20px 30px;display:flex;box-shadow:0 2px 8px #0000000d}.header h3{margin:0}.logout-btn{color:#fff;cursor:pointer;background:#e74c3c;border:none;border-radius:6px;padding:8px 15px;font-size:14px;text-decoration:none}.logout-btn:hover{background:#c0392b}.content{padding:30px}.stats{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:40px;display:grid}.stat-card{text-align:center;background:#fff;border-radius:12px;padding:25px;box-shadow:0 6px 15px #0000000d}.stat-card i{margin-bottom:10px;font-size:28px}.stat-card h2{margin:5px 0}.stat-card.total{border-left:5px solid #3498db}.stat-card.processing{border-left:5px solid #f39c12}.stat-card.solved{border-left:5px solid #2ecc71}.stat-card.pending{border-left:5px solid #e74c3c}table{border-collapse:collapse;background:#fff;border-radius:12px;width:100%;overflow:hidden;box-shadow:0 6px 15px #0000000d}table th,table td{text-align:left;border-bottom:1px solid #eee;padding:15px 20px}table th{background:#f8f9fa;font-weight:600}.form-box{background:#fff;border-radius:12px;max-width:800px;padding:30px;box-shadow:0 6px 15px #0000000d}.form-group{margin-bottom:20px}.form-group label{margin-bottom:8px;font-weight:600;display:block}.form-group input,.form-group select,.form-group textarea{border:1px solid #ddd;border-radius:8px;width:100%;padding:12px;font-size:14px}.btn-primary{color:#fff;cursor:pointer;background:#2c3e50;border:none;border-radius:8px;padding:12px 25px;font-weight:600}.btn-primary:hover{background:#1a252f}.success-overlay{z-index:9999;background:#ffffffe6;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;animation:.4s ease-out fadeIn;display:flex;position:fixed;top:0;left:0}.success-icon{filter:drop-shadow(0 0 15px #2ecc7166);background:#2ecc71;border-radius:50%;justify-content:center;align-items:center;width:100px;height:100px;animation:.6s cubic-bezier(.175,.885,.32,1.275) scaleUp;display:flex}.success-icon i{color:#fff;font-size:50px;animation:1s bounceIn}.success-overlay h2{color:#2c3e50;margin-top:25px;font-size:28px;font-weight:700;animation:.6s ease-out slideUp}.success-overlay p{color:#7f8c8d;margin-top:10px;animation:.8s ease-out slideUp}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleUp{0%{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}@keyframes bounceIn{0%{opacity:0;transform:scale(.3)}50%{opacity:1;transform:scale(1.05)}70%{transform:scale(.9)}to{transform:scale(1)}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.no-column{color:#95a5a6;width:60px;font-weight:700;text-align:center!important}.loading-overlay{z-index:9999;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#ffffffd9;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.loading-box{text-align:center;background:#fff;border-radius:18px;min-width:260px;padding:30px 35px;box-shadow:0 20px 60px #0000001f}.loading-spinner{border:6px solid #2c3e5026;border-top-color:#2c3e50;border-radius:50%;width:56px;height:56px;margin:0 auto 18px;animation:.9s linear infinite pulse-spin}.loading-box p{color:#2c3e50;margin:0;font-size:16px;font-weight:600}@keyframes pulse-spin{to{transform:rotate(360deg)}}