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16px!important}.mobile-nav-backdrop{z-index:150;background:#00000059;display:none;position:fixed;inset:0}.mobile-nav-backdrop.mobile-open{display:block}.sb-home-link{transform:translate(-9px,4px)!important}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.app-shell.sidebar-collapsed .video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}.feature-dimmed{filter:brightness(.9);pointer-events:none;-webkit-user-select:none;user-select:none;touch-action:none;overscroll-behavior:none;transition:filter .2s}.feature-dim-soft{filter:brightness(.9);transition:filter .2s}.feature-scrolllock{overflow:hidden!important}.lock-body-scroll{touch-action:none;overscroll-behavior:none!important;overflow:hidden!important}@media (max-width:600px){.app-main{padding-top:54px}.video-grid{grid-template-columns:1fr;gap:12px}.app-shell.sidebar-collapsed .video-grid{grid-template-columns:1fr}.page-content,.responsive-page{padding-left:12px;padding-right:12px}}@media (max-width:900px){.dashboard-page{padding-left:16px!important;padding-right:16px!important}.dash-stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}.dash-time-grid{grid-template-columns:1fr!important}.dash-time-right>div{height:auto!important}.dash-streak-card{flex-wrap:wrap!important;gap:8px!important}.dash-wow-badge{white-space:normal!important;flex-wrap:wrap!important;gap:8px!important}.dash-review-grid{grid-template-columns:1fr!important}}@media (max-width:600px){.dash-stats-grid{grid-template-columns:1fr!important}}@media (max-width:900px){.collect-tabs{scrollbar-width:none;-ms-overflow-style:none;flex-wrap:nowrap;overflow-y:hidden!important}.collect-tabs::-webkit-scrollbar{display:none}.collect-tab{flex-shrink:0}}.video-player-fullscreen:fullscreen{background:#000;justify-content:center;align-items:center;display:flex;border-radius:0!important;width:100vw!important;height:100vh!important;max-height:100vh!important}.video-player-fullscreen:fullscreen video{object-fit:contain;width:100%!important;height:100%!important}.video-player-fullscreen:-webkit-full-screen{background:#000;border-radius:0!important;width:100vw!important;height:100vh!important;max-height:100vh!important}:is(.video-fs-wrapper:fullscreen,.video-fs-wrapper:fullscreen){background:#000;flex-direction:column;display:flex;width:100vw!important;height:100vh!important}:is(.video-fs-wrapper:fullscreen>div:first-child,.video-fs-wrapper:fullscreen>div:first-child){flex:1;width:100%!important;height:100%!important;aspect-ratio:unset!important;border-radius:0!important;max-height:none!important}:is(.video-fs-wrapper:fullscreen>div:first-child video,.video-fs-wrapper:fullscreen>div:first-child video){object-fit:contain}@keyframes vocabFadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes explainModalIn{0%{opacity:0;transform:translate(-50%,-48%)}to{opacity:1;transform:translate(-50%,-50%)}}:root{--app-height:100vh}@media (max-width:1023px){.sl-act-label{display:none}}.lg-tabhead{gap:8px;margin-bottom:20px;display:flex}.lg-tab{text-align:center;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);color:var(--text-muted);cursor:pointer;flex:1;padding:11px 8px;font-family:inherit;font-size:14px;font-weight:600;transition:all .15s;display:block}.lg-tab.active{border-color:var(--accent);color:var(--accent);background:var(--accent-surface)}.lg-panel{display:none}.lg-panel.active{display:block}.lg-tips-toggle{color:var(--accent);cursor:pointer;background:0 0;border:none;margin:0 0 12px;padding:0;font-family:inherit;font-size:13px;font-weight:600;display:inline-block}.lg-tips-wrap{display:none}.lg-tips-wrap.open{display:block}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property 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--tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}