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rgba(255,255,255,.2);position:relative;z-index:1}.login-header{text-align:center;margin-bottom:2rem}.login-icon{font-size:4rem;margin-bottom:1rem;display:block;animation:bounce 2s infinite}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0)}40%{transform:translateY(-10px)}60%{transform:translateY(-5px)}}.login-form h2{color:#2c3e50;font-size:1.8rem;margin-bottom:.5rem}.login-form p{color:#7f8c8d;font-size:1rem;margin-bottom:0}.dashboard{padding:2rem 0}.dashboard-header{text-align:center;margin-bottom:3rem}.dashboard-header h1{color:#333;font-size:2.5rem;margin-bottom:1rem}.dashboard-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:3rem}.stat-card{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:2rem;border-radius:12px;text-align:center}.stat-card h3{font-size:2rem;margin-bottom:.5rem}.stat-card p{opacity:.9}table{width:100%;border-collapse:collapse;background:white;border-radius:8px;overflow:hidden;box-shadow:0 4px 6px #0000001a}th,td{padding:12px 16px;text-align:left;border-bottom:1px solid #e1e5e9}th{background:#f8f9fa;font-weight:600;color:#555}tr:hover{background:#f8f9fa}.chart-container{background:white;padding:2rem;border-radius:8px;box-shadow:0 4px 6px #0000001a;margin-bottom:2rem}.chatbot-container{max-width:800px;margin:0 auto;background:white;border-radius:8px;box-shadow:0 4px 6px #0000001a;overflow:hidden}.chat-header{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:1rem 2rem;text-align:center}.chat-messages{height:400px;overflow-y:auto;padding:1rem;background:#f8f9fa}.message{margin-bottom:1rem;padding:.75rem 1rem;border-radius:18px;max-width:70%}.message.user{background:#667eea;color:#fff;margin-left:auto}.message.bot{background:white;color:#333;border:1px solid #e1e5e9}.chat-input{display:flex;padding:1rem;gap:1rem}.chat-input input{flex:1;margin:0}@media (max-width: 768px){nav{padding:1rem;flex-wrap:wrap}nav a{margin-right:10px;margin-bottom:10px}.dashboard-stats{grid-template-columns:1fr}form{padding:1.5rem;margin:0 1rem}.card{padding:1.5rem;margin:0 1rem 2rem}}.loading{display:flex;justify-content:center;align-items:center;height:200px;font-size:1.2rem;color:#666}.error{background:#f8d7da;color:#721c24;padding:1rem;border-radius:6px;margin-bottom:1rem;border:1px solid #f1aeb5}.success{background:#d1edff;color:#0c5460;padding:1rem;border-radius:6px;margin-bottom:1rem;border:1px solid #b8daff}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.p-1{padding:.5rem}.p-2{padding:1rem}.p-3{padding:1.5rem}