:root{--bg-color:#09090b;--bg-panel:#18181bb3;--bg-panel-hover:#27272ad9;--text-primary:#f8fafc;--text-secondary:#94a3b8;--primary-color:#4f46e5;--primary-hover:#4338ca;--secondary-color:#10b981;--accent-color:#f43f5e;--border-color:#ffffff14;--glass-shadow:0 8px 32px 0 #0009;--glass-border:1px solid var(--border-color);--glass-blur:blur(16px);--border-radius:16px;--font-family:"Inter", system-ui, -apple-system, sans-serif;--transition:all .25s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-primary);background:radial-gradient(circle at 10% 10%,#4f46e51f 0%,#0000 40%),radial-gradient(circle at 90% 90%,#f43f5e14 0%,#0000 40%),radial-gradient(circle,#10b98108 0%,#0000 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td{white-space:nowrap!important}.chart-container-scroll{-webkit-overflow-scrolling:touch;flex:1;width:100%;min-height:0;overflow:auto hidden}.chart-inner{width:100%;min-width:600px;height:100%;position:relative}@media (width<=768px){.desktop-sidebar{display:none!important}.mobile-header{display:flex!important}.flex-mobile-col{flex-direction:column!important}.timer-display{font-size:min(18vw,7rem)!important}.mobile-title-wrap{flex-wrap:wrap!important;gap:8px!important}.nested-topic-list{padding:0 16px 16px!important}.main-content{padding:70px 0 90px!important}.mobile-no-glass{box-shadow:none!important;-webkit-backdrop-filter:none!important;background:0 0!important;border:none!important;padding:16px!important}.glass-panel{border-radius:16px}.dashboard-grid,.stats-grid,.study-plan-grid{grid-template-columns:1fr!important}.fab-container{bottom:90px!important;right:20px!important}.fab-batch{bottom:90px!important}.modal-container{width:95%!important;padding:24px!important}.bottom-nav{-webkit-backdrop-filter:blur(20px);height:72px;padding-bottom:env(safe-area-inset-bottom);z-index:90;background:#14141bd9;border-top:1px solid #ffffff1a;justify-content:space-around;align-items:center;padding-left:8px;padding-right:8px;display:flex;position:fixed;bottom:0;left:0;right:0}.bottom-nav-item{color:var(--text-secondary);border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:8px 12px;font-size:.7rem;font-weight:500;text-decoration:none;transition:all 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