.header{background:var(--white);box-shadow:var(--shadow);position:sticky;top:0;z-index:100}.header-container{max-width:1200px;margin:0 auto;padding:15px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo{font-size:1.5rem;font-weight:700;color:var(--primary-color)}.nav{display:flex;gap:20px}.nav-link{color:var(--dark-color);font-weight:500;padding:8px 12px;border-radius:var(--radius);transition:background .3s}.nav-link:hover{background:var(--light-color)}.user-menu{display:flex;align-items:center;gap:15px}.user-info{display:flex;flex-direction:column;align-items:flex-end;font-weight:500}.user-school{font-size:.75rem;color:#666;font-weight:400}.user-link{cursor:pointer;padding:8px 12px;border-radius:var(--radius);transition:background .3s}.user-link:hover{background:var(--light-color)}.btn-sm{padding:8px 16px;font-size:.875rem}@media (max-width: 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tr.won{background:#2ecc710d}.rank-col{width:70px;text-align:center!important}.rank{font-size:1.25rem}.time-col,.score-col,.status-col{text-align:center!important;width:100px}.team-name{font-weight:600;color:var(--dark-color)}.school{color:#666;font-size:.9rem}.scenario{font-size:.9rem}.status-won{color:var(--secondary-color);font-weight:700;font-size:1.25rem}.status-lost{color:#ccc;font-size:1.25rem}.empty-state{padding:40px;text-align:center;color:#888}@media (max-width: 768px){.filter-row{flex-direction:column}.filter-group{min-width:100%}.leaderboard-table{overflow-x:auto}.leaderboard-table table{min-width:600px}}.dashboard-page{padding-bottom:40px}.dashboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:40px}.stat-card{text-align:center;padding:25px 20px}.stat-card .stat-value{font-size:2.5rem;font-weight:700;color:var(--primary-color);margin-bottom:5px}.stat-card .stat-label{font-size:.85rem;text-transform:uppercase;color:#888}.scenarios-section{margin-bottom:40px}.scenarios-section h2{margin-bottom:20px;color:var(--dark-color)}.scenarios-list{display:flex;flex-direction:column;gap:15px}.scenario-item{display:flex;justify-content:space-between;align-items:center;padding:20px 25px}.scenario-info h3{margin-bottom:8px;color:var(--dark-color)}.scenario-meta{color:#666;font-size:.9rem;margin-bottom:8px}.status-badge{display:inline-block;padding:4px 10px;border-radius:20px;font-size:.75rem;font-weight:600;text-transform:uppercase}.status-badge.active{background:#d4edda;color:#155724}.status-badge.inactive{background:#f8d7da;color:#721c24}.scenario-actions{display:flex;gap:10px}.btn-sm{padding:8px 15px;font-size:.85rem}.empty-state{text-align:center;padding:40px}.empty-state p{color:#666;margin-bottom:20px}.top-section 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768px){.dashboard-header{flex-direction:column;gap:15px;align-items:stretch}.stats-grid{grid-template-columns:repeat(2,1fr)}.scenario-item{flex-direction:column;align-items:flex-start;gap:15px}.scenario-actions{width:100%;flex-wrap:wrap}.scenario-actions .btn{flex:1;min-width:100px}}.creator-page{max-width:800px;padding-bottom:40px}.creator-page h1{margin-bottom:30px}.steps{display:flex;justify-content:center;gap:30px;margin-bottom:30px}.step{display:flex;align-items:center;gap:10px;cursor:pointer;opacity:.5;transition:opacity .3s}.step.active{opacity:1}.step-number{width:35px;height:35px;background:var(--primary-color);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700}.step-label{font-weight:500;color:var(--dark-color)}.step-content{margin-bottom:30px}.step-content h2{margin-bottom:25px;color:var(--dark-color)}.step-content h3{margin-bottom:15px;color:var(--dark-color)}.step-content h4{margin:20px 0 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768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.gap-1{gap:10px}.gap-2{gap:20px}.gap-3{gap:30px}.text-center{text-align:center}.text-primary{color:var(--primary-color)}.text-success{color:var(--secondary-color)}.text-danger{color:var(--danger-color)}.text-warning{color:var(--warning-color)}.mt-1{margin-top:10px}.mt-2{margin-top:20px}.mt-3{margin-top:30px}.mb-1{margin-bottom:10px}.mb-2{margin-bottom:20px}.mb-3{margin-bottom:30px}.spinner{width:40px;height:40px;border:4px solid var(--light-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:200px;gap:20px}