.notification-modal-overlay{position:fixed;bottom:20px;right:20px;z-index:2000}.notification-modal-content{width:350px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);animation:slideIn .5s ease-out}.notification-modal-header{display:flex;align-items:center;padding:var(--spacing-md);border-bottom:1px solid var(--border-color)}.sender-avatar{width:32px;height:32px;border-radius:50%;margin-right:var(--spacing-md)}.notification-modal-header h3{margin:0;flex-grow:1;font-size:1rem}.close-button{background:none;border:none;color:var(--text-secondary);cursor:pointer}.notification-modal-body{padding:var(--spacing-lg)}.notification-modal-footer{padding:var(--spacing-md);text-align:right}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.ctf-modal-overlay{position:fixed;inset:0;background:#000000e6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:2000;display:flex;align-items:center;justify-content:center;padding:var(--spacing-lg)}.ctf-modal-content{background:var(--bg-secondary);border:2px solid var(--accent-primary);border-radius:var(--radius-xl);max-width:1200px;width:100%;max-height:90vh;overflow:hidden;box-shadow:0 0 50px #00ff884d;position:relative}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-xl);border-bottom:1px solid var(--border-color);background:var(--bg-tertiary)}.terminal-controls{display:flex;gap:var(--spacing-sm)}.control-btn{width:12px;height:12px;border-radius:50%;cursor:pointer;transition:all var(--transition-fast)}.control-btn.close{background:var(--error)}.control-btn.minimize{background:var(--warning)}.control-btn.maximize{background:var(--success)}.control-btn:hover{transform:scale(1.2)}.modal-header h2{margin:0;color:var(--accent-primary);font-family:Courier New,monospace;font-size:1.5rem;text-shadow:0 0 10px var(--accent-primary)}.blink{animation:blink 1s infinite}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}.modal-body{padding:var(--spacing-xl);max-height:70vh;overflow-y:auto}.ctf-tabs{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-xl);border-bottom:1px solid var(--border-color)}.tab-btn{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-lg);background:none;border:none;border-bottom:2px solid transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-normal);font-weight:500;text-transform:uppercase;letter-spacing:.5px}.tab-btn:hover{color:var(--text-primary);background:var(--bg-tertiary)}.tab-btn.active{color:var(--accent-primary);border-bottom-color:var(--accent-primary);background:var(--bg-tertiary)}.loading-spinner{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-2xl);color:var(--text-secondary)}.loading-spinner .spinner{width:48px;height:48px;border-width:4px;margin-bottom:var(--spacing-lg)}.events-section h3{color:var(--accent-primary);margin-bottom:var(--spacing-xl);font-size:1.5rem;text-transform:uppercase;letter-spacing:1px}.events-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:var(--spacing-xl)}.event-card{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-xl);transition:all var(--transition-normal)}.event-card:hover{border-color:var(--accent-primary);box-shadow:0 0 20px #0f83;transform:translateY(-2px)}.event-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-md)}.event-header h4{margin:0;color:var(--text-primary);font-size:1.25rem}.event-status{padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-sm);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.event-description{color:var(--text-secondary);line-height:1.6;margin-bottom:var(--spacing-lg)}.event-details{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-bottom:var(--spacing-lg)}.event-date,.event-participants{display:flex;align-items:center;gap:var(--spacing-sm);color:var(--text-muted);font-size:.875rem}.event-prizes{margin-bottom:var(--spacing-lg)}.event-prizes h5{color:var(--accent-primary);margin-bottom:var(--spacing-sm);font-size:1rem}.event-prizes 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var(--transition-normal);position:relative}.challenge-card:hover{border-color:var(--accent-primary);box-shadow:0 0 15px #0f83;transform:translateY(-2px)}.challenge-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-md)}.challenge-category{display:flex;align-items:center;gap:var(--spacing-xs);color:var(--accent-secondary);font-size:.875rem;font-weight:600}.challenge-difficulty{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.challenge-card h4{color:var(--text-primary);margin-bottom:var(--spacing-md);font-size:1.125rem}.challenge-card p{color:var(--text-secondary);line-height:1.6;margin-bottom:var(--spacing-lg)}.challenge-stats{display:flex;align-items:center;gap:var(--spacing-lg);margin-bottom:var(--spacing-md)}.solved-by{color:var(--text-muted);font-size:.875rem}.solved-badge{display:flex;align-items:center;gap:var(--spacing-xs);color:var(--success);font-size:.875rem;font-weight:600}.challenge-tags{display:flex;flex-wrap:wrap;gap:var(--spacing-xs);margin-bottom:var(--spacing-lg)}.tag{padding:var(--spacing-xs) var(--spacing-sm);background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-muted);font-size:.75rem}.leaderboard-section h3{color:var(--accent-primary);margin-bottom:var(--spacing-xl);font-size:1.5rem;text-transform:uppercase;letter-spacing:1px}.leaderboard-table{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden}.leaderboard-header{display:grid;grid-template-columns:60px 1fr 100px 80px 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h5{color:var(--accent-primary);margin-bottom:var(--spacing-md);font-size:1rem}.challenge-hints ul{list-style:none;padding:0;margin:0}.challenge-hints li{color:var(--text-secondary);padding:var(--spacing-sm) 0;border-bottom:1px solid var(--border-color)}.challenge-hints li:last-child{border-bottom:none}.flag-input{display:flex;gap:var(--spacing-md);align-items:flex-end}.cyber-input{flex:1;padding:var(--spacing-md);background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-family:Courier New,monospace;font-size:1rem;transition:all var(--transition-normal)}.cyber-input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px #00ff881a}.cyber-btn{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-lg);background:var(--accent-primary);border:1px solid var(--accent-primary);border-radius:var(--radius-md);color:var(--bg-primary);cursor:pointer;transition:all 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var(--error);color:var(--error)}.no-challenge-selected{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-2xl);text-align:center;color:var(--text-muted);background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-lg)}.no-challenge-selected i{font-size:4rem;color:var(--accent-primary);margin-bottom:var(--spacing-lg)}.no-challenge-selected p{margin:0;color:var(--text-secondary)}.modal-footer{display:flex;justify-content:flex-end;gap:var(--spacing-md);padding:var(--spacing-xl);border-top:1px solid var(--border-color);background:var(--bg-tertiary)}@media (max-width: 768px){.ctf-modal-content{margin:var(--spacing-md);max-height:95vh}.modal-header,.modal-body,.modal-footer{padding:var(--spacing-lg)}.ctf-tabs{flex-wrap:wrap;gap:var(--spacing-xs)}.tab-btn{flex:1;min-width:120px;justify-content:center;padding:var(--spacing-sm) var(--spacing-md);font-size:.875rem}.events-grid,.challenges-grid{grid-template-columns:1fr}.leaderboard-header,.leaderboard-row{grid-template-columns:40px 1fr 60px 50px 80px;gap:var(--spacing-sm);padding:var(--spacing-md);font-size:.875rem}.flag-input{flex-direction:column;align-items:stretch}.modal-footer{flex-direction:column}}@media (max-width: 480px){.ctf-modal-overlay{padding:var(--spacing-sm)}.modal-header h2{font-size:1.25rem}.leaderboard-header,.leaderboard-row{grid-template-columns:30px 1fr 50px;gap:var(--spacing-xs)}.leaderboard-header span:nth-child(4),.leaderboard-header span:nth-child(5),.leaderboard-row span:nth-child(4),.leaderboard-row span:nth-child(5){display:none}}.news-modal-overlay{position:fixed;inset:0;background:#000000e6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:2000;display:flex;align-items:center;justify-content:center;padding:var(--spacing-lg)}.news-modal-content{background:var(--bg-secondary);border:2px solid 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768px){.news-modal-content{margin:var(--spacing-md);max-height:95vh}.modal-header,.modal-body,.modal-footer{padding:var(--spacing-lg)}.news-controls{gap:var(--spacing-md)}.category-filters{justify-content:flex-start;overflow-x:auto;padding-bottom:var(--spacing-sm)}.category-btn{flex-shrink:0;padding:var(--spacing-xs) var(--spacing-sm);font-size:.75rem}.articles-grid{grid-template-columns:1fr}.article-detail .article-title{font-size:1.5rem}.article-detail .article-image{height:200px}.modal-footer{flex-direction:column;gap:var(--spacing-md);align-items:stretch}.news-stats{justify-content:center}}@media (max-width: 480px){.news-modal-overlay{padding:var(--spacing-sm)}.modal-header h2{font-size:1.25rem}.article-card-header,.article-info,.article-actions{padding:var(--spacing-sm)}.article-detail 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