.sidebar{width:240px;min-height:100vh;background:linear-gradient(180deg,#1a1a2e,#16213e);padding:24px 16px;display:flex;flex-direction:column;position:fixed;left:0;top:0}.sidebar-header{padding:0 12px 24px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:24px}.sidebar-title{font-size:20px;font-weight:700;color:#fff;margin:0}.sidebar-subtitle{font-size:12px;color:#ffffff80;text-transform:uppercase;letter-spacing:1px}.sidebar-nav{display:flex;flex-direction:column;gap:8px}.nav-item{display:flex;align-items:center;gap:12px;padding:14px 16px;border:none;background:transparent;color:#ffffffb3;font-size:15px;font-weight:500;cursor:pointer;border-radius:10px;transition:all .2s ease;text-align:left;width:100%}.nav-item:hover{background:#ffffff14;color:#fff}.nav-item.active{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 4px 15px #667eea66}.nav-icon{font-size:18px}.nav-label{font-family:-apple-system,BlinkMacSystemFont,Segoe 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20px}.lead-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:24px}.lead-stats-details{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}.detail-card{background:#fff;border-radius:12px;padding:20px;border:1px solid #e2e8f0;box-shadow:0 1px 3px #0000000d}.detail-card h3{font-size:14px;font-weight:600;color:#64748b;margin:0 0 16px;text-transform:uppercase;letter-spacing:.5px}.detail-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid #f1f5f9}.detail-row:last-child{border-bottom:none}.detail-row span:first-child{color:#64748b;font-size:14px}.detail-value{font-weight:600;color:#1a1a2e;font-size:15px}.dashboard{padding:32px 40px;max-width:1400px;margin:0 auto}.dashboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}.dashboard-header h1{font-size:28px;font-weight:700;color:#1a1a2e;margin:0}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px;margin-bottom:32px}.date-range-info{padding:16px 20px;background:#f8fafc;border-radius:10px;margin-bottom:32px;border:1px solid #e2e8f0}.date-range-info p{margin:0;color:#64748b;font-size:14px}.categories-section{background:#fff;border-radius:16px;padding:24px;box-shadow:0 1px 3px #0000001a}.categories-section h2{font-size:18px;font-weight:600;color:#1a1a2e;margin:0 0 20px}.categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}.category-item{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:#f8fafc;border-radius:8px;border:1px solid #e2e8f0}.category-name{font-size:14px;color:#334155;font-weight:500;text-transform:capitalize}.category-count{font-size:16px;font-weight:700;color:#667eea;background:#667eea1a;padding:4px 12px;border-radius:20px}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px;color:#64748b}.spinner{width:40px;height:40px;border:3px solid #e2e8f0;border-top-color:#667eea;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:16px}@keyframes spin{to{transform:rotate(360deg)}}.error-state{text-align:center;padding:40px;background:#fef2f2;border-radius:12px;border:1px solid #fecaca}.error-state p{color:#dc2626;margin:0 0 16px}.error-state button{padding:10px 20px;background:#667eea;color:#fff;border:none;border-radius:8px;cursor:pointer;font-weight:500}.error-state button:hover{background:#5a6fd6}.placeholder-page{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;color:#64748b}.placeholder-page h2{font-size:24px;color:#1a1a2e;margin-bottom:8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe 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