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var(--s2);background:var(--elevated);border:1px solid var(--border);border-radius:var(--r-md)}.timer-icon{color:var(--text-subtle);font-size:.875rem}.timer-display{display:flex;align-items:center;gap:2px;font-family:SF Mono,Consolas,monospace;font-size:.9375rem;font-weight:500;color:var(--text)}.timer-unit{min-width:20px;text-align:center}.timer-separator{color:var(--text-subtle)}.timer-label{font-size:.625rem;color:var(--text-subtle);text-transform:uppercase;letter-spacing:.05em}.nav-actions{display:flex;align-items:center;gap:var(--s1)}.btn-dashboard,.btn-notifications{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--elevated);border:1px solid var(--border);border-radius:var(--r-md);color:var(--text-dim);cursor:pointer;transition:all .12s 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h4{font-size:.875rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--s2)}.members-list{display:flex;flex-direction:column;gap:var(--s1)}.member-row{display:flex;align-items:center;gap:var(--s2);padding:var(--s2);background:var(--elevated);border-radius:var(--r-md)}.member-avatar{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--border-hover);border-radius:50%;color:var(--text-dim);font-size:.875rem;font-weight:500}.member-name{font-size:.9375rem;color:var(--text)}.badge-self{margin-left:auto;padding:2px 8px;background:var(--success);color:#fff;font-size:.625rem;font-weight:600;border-radius:var(--r-sm);text-transform:uppercase}.team-actions{display:flex;gap:var(--s2)}.btn-primary-action{flex:1;padding:var(--s2);background:var(--accent);border:none;border-radius:var(--r-md);color:#fff;font-size:.9375rem;font-weight:500;cursor:pointer;transition:all .12s ease}.btn-primary-action:hover{background:#0052cc}.btn-danger-action{padding:var(--s2);background:transparent;border:1px solid var(--danger);border-radius:var(--r-md);color:var(--danger);font-size:.9375rem;font-weight:500;cursor:pointer;transition:all .12s ease}.btn-danger-action:hover{background:var(--danger);color:#fff}.stats-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:var(--s4)}.stats-header{margin-bottom:var(--s3);padding-bottom:var(--s2);border-bottom:1px solid var(--border)}.stats-header h3{font-size:1.125rem;font-weight:600;color:var(--text)}.stats-grid{display:flex;flex-direction:column;gap:var(--s3)}.stat-item{display:flex;justify-content:space-between;align-items:center;padding:var(--s2);background:var(--elevated);border-radius:var(--r-md)}.stat-label{font-size:.875rem;color:var(--text-dim)}.stat-value{font-size:1.5rem;font-weight:600;color:var(--text)}.notification-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000c;z-index:1000;animation:fadeIn .12s ease}.notification-panel{position:fixed;top:0;right:0;width:480px;height:100vh;background:var(--bg);border-left:1px solid var(--border);z-index:1001;animation:slideIn .2s ease}@keyframes slideIn{0%{transform:translate(100%)}to{transform:translate(0)}}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:var(--s4) var(--s3);border-bottom:1px solid var(--border);background:var(--bg)}.panel-header h3{font-size:1.125rem;font-weight:600;color:var(--text);display:flex;align-items:center;gap:var(--s2)}.panel-header h3 svg{font-size:1.125rem;color:var(--text-dim)}.panel-close{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--elevated);border:1px solid var(--border);border-radius:var(--r-md);color:var(--text-dim);cursor:pointer;transition:all .12s ease}.panel-close:hover{background:var(--border-hover);color:var(--text)}.panel-content{padding:var(--s3);height:calc(100vh - 80px);overflow-y:auto}.notification-item{display:flex;flex-direction:column;gap:var(--s2);padding:var(--s3);background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);margin-bottom:var(--s3);transition:border-color .12s ease}.notification-item:hover{border-color:var(--border-hover)}.notification-item.info,.notification-item.warning,.notification-item.success,.notification-item.error{background:var(--surface)}.notification-item h4{font-size:1rem;font-weight:600;color:var(--text);line-height:1.4}.notification-item p{font-size:.875rem;color:var(--text-dim);line-height:1.6}.message.success{background:#00c85326;color:var(--success);border:1px solid rgba(0,200,83,.3)}.message.error{background:#ff174426;color:var(--danger);border:1px solid rgba(255,23,68,.3)}.message.info{background:#0066ff26;color:var(--accent);border:1px solid rgba(0,102,255,.3)}.announcement-popup{position:fixed;bottom:var(--s3);right:var(--s3);width:400px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:var(--s4);z-index:999;animation:slideInRight .2s ease}.popup-icon{display:none}.popup-content{flex:1}.popup-content h4{font-size:1rem;font-weight:600;color:var(--text);margin-bottom:var(--s2)}.popup-content p{font-size:.875rem;color:var(--text-dim);line-height:1.6}.popup-badge{display:inline-block;padding:2px 8px;background:var(--elevated);color:var(--text-dim);font-size:.625rem;font-weight:600;border-radius:var(--r-sm);text-transform:uppercase;letter-spacing:.075em;margin-bottom:var(--s2)}.popup-priority{display:inline-block;padding:2px 8px;background:var(--elevated);color:var(--danger);font-size:.625rem;font-weight:600;border-radius:var(--r-sm);text-transform:uppercase;letter-spacing:.075em;margin-top:var(--s2)}.popup-close{position:absolute;top:var(--s3);right:var(--s3);width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid var(--border);border-radius:var(--r-md);color:var(--text-dim);cursor:pointer;transition:all .12s ease}.popup-close:hover{border-color:var(--border-hover);color:var(--text)}@keyframes slideInRight{0%{opacity:0;transform:translate(100px)}to{opacity:1;transform:translate(0)}}.popup-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--s2)}.popup-header h4{font-size:1rem;font-weight:600;color:var(--text);flex:1}.popup-close{width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:var(--elevated);border:1px solid var(--border);border-radius:var(--r-sm);color:var(--text-dim);cursor:pointer;transition:all .12s ease}.popup-close:hover{background:var(--border-hover);color:var(--text)}.popup-message{font-size:.875rem;color:var(--text-dim);line-height:1.5;margin-bottom:var(--s2)}.popup-time{font-size:.75rem;color:var(--text-subtle)}.btn-mark-read{padding:8px 14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);color:var(--text-dim);font-size:.8125rem;font-weight:500;cursor:pointer;transition:border-color .12s ease}.btn-mark-read:hover{border-color:var(--border-hover);color:var(--text)}.panel-close{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid 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p{color:var(--text-primary);margin:0;line-height:1.6;font-size:.95rem;white-space:pre-wrap}.input-hint{display:block;color:var(--text-secondary);font-size:.8rem;margin-top:8px}.login-page{min-height:100vh;width:100%;display:flex;align-items:center;justify-content:center;background:var(--bg-dark);overflow:hidden}.login-split{display:flex;width:100%;min-height:100vh}.login-visual{flex:1;background:var(--bg-card);position:relative;display:flex;flex-direction:column;justify-content:center;padding:60px;overflow:hidden;border-right:1px solid var(--border-color)}.visual-content{position:relative;z-index:2;max-width:600px;margin:0 auto}.visual-content h1{font-size:3rem;font-weight:700;line-height:1.1;margin-bottom:24px;color:var(--text-primary)}.visual-subtitle{font-size:1.1rem;color:var(--text-secondary);line-height:1.6;margin-bottom:40px;max-width:480px}.visual-features{display:grid;gap:20px}.feature-item{display:flex;align-items:center;gap:16px;color:var(--text-primary);font-weight:500}.feature-icon{width:40px;height:40px;border-radius:8px;background:var(--bg-dark);display:flex;align-items:center;justify-content:center;color:var(--primary-color);border:1px solid var(--border-color)}.login-form-section{flex:0 0 500px;background:var(--bg-dark);display:flex;align-items:center;justify-content:center;padding:40px;position:relative}.auth-box-modern{width:100%;max-width:380px}.auth-header{margin-bottom:40px}.auth-header h2{font-size:1.8rem;font-weight:600;color:var(--text-primary);margin-bottom:8px}.auth-header p{color:var(--text-secondary)}.modern-input-group{margin-bottom:24px;position:relative}.modern-input-group label{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-secondary);pointer-events:none;transition:all .2s ease;background:var(--bg-dark);padding:0 4px;font-size:.95rem}.modern-input-group input:focus~label,.modern-input-group input:not(:placeholder-shown)~label{top:0;font-size:.75rem;color:var(--primary-color)}.modern-input-group input{width:100%;padding:12px 16px;background:transparent;border:1px solid var(--border-color);border-radius:6px;color:var(--text-primary);font-size:1rem;transition:all .2s}.modern-input-group input:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 2px #3b82f61a}.btn-modern{width:100%;padding:12px;background:var(--primary-color);color:#fff;border:none;border-radius:6px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s}.btn-modern:hover{background:#2563eb;transform:translateY(-1px)}.btn-modern:disabled{opacity:.7;cursor:not-allowed;transform:none}.auth-footer{margin-top:32px;text-align:center;color:var(--text-secondary);font-size:.9rem}.auth-footer a{color:var(--primary-color);text-decoration:none;font-weight:500;margin-left:4px}.auth-footer a:hover{text-decoration:underline}@media (max-width: 1024px){.login-visual{display:none}.login-form-section{flex:1;border-left:none}.auth-box-modern{max-width:420px}}@media (max-width: 768px){.team-options{grid-template-columns:1fr}.option-divider{padding-top:0}.challenges-grid{grid-template-columns:1fr}.nav-links{flex-direction:column;gap:10px;align-items:flex-end}.challenges-header{flex-direction:column;align-items:flex-start;gap:15px}.team-stats{grid-template-columns:1fr}.action-buttons{flex-direction:column}.action-buttons .btn{max-width:100%}.challenges-header{flex-direction:column;align-items:flex-start}.score-display{width:100%}.category-tabs{flex-direction:column}.modal-content{padding:32px 24px;margin:5% auto;width:95%}.modal-badges{flex-wrap:wrap}}