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#90b4ff}@media (width<=1024px){:root{--header-height:70px;--sidebar-width:240px}.dashboard-header{padding:0 20px}}@media (width<=768px){:root{--header-height:65px;--sidebar-width:236px}.dashboard-header{padding:0 16px}.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-overlay{top:var(--header-height);z-index:850;cursor:pointer;background:#00000080;border:none;display:block;position:fixed;bottom:0;left:0;right:0}.main-content,.sidebar.closed+.main-content,.sidebar.closed~.main-content{width:100vw;margin-left:0;padding:20px}.page-title{max-width:180px;font-size:15px}.philippine-time,.header-user-name{display:none}.welcome-card{text-align:center;flex-direction:column;gap:20px}.welcome-actions{justify-content:center}.welcome-actions .action-btn{width:100%}.hero-quick-links{justify-content:center}.dashboard-search{width:100%}.books-search{width:100%;margin-bottom:18px}.dashboard-search-input,.books-search-input{padding:0 14px;font-size:14px}.welcome-info h2{font-size:22px}.summary-cards{grid-template-columns:repeat(2,1fr)}.books-grid{gap:12px}.dashboard-insights-grid{grid-template-columns:1fr;gap:0}.announcements-grid{grid-template-columns:1fr}.recommendation-card{grid-template-columns:58px 1fr}.recommendation-cover{width:58px;height:78px}.recommendation-card .action-btn{grid-column:1/-1;width:100%}.landing-footer{flex-direction:column;gap:6px}.profile-card{text-align:center;flex-direction:column;align-items:center}}@media (width<=480px){:root{--header-height:60px}.dashboard-header{padding:0 12px}.hamburger-btn{width:36px;height:36px;font-size:18px}.page-title{max-width:150px;font-size:13px}.summary-cards{grid-template-columns:1fr}.summary-card{padding:20px}.card-icon{width:50px;height:50px;font-size:13px}.card-info h3{font-size:26px}.activity-table th,.activity-table td{padding:12px 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