.pcc-mobile-study-hub,.pcc-mobile-study-nav{display:none}
@media(max-width:760px){
 .app .pcc-mobile-study-hub{display:block;margin:0 0 18px;padding:18px;border:1px solid #dce7f4;border-radius:16px;background:#fff;color:#173455;box-sizing:border-box}
 .pcc-mobile-study-hub header>span{font-size:9px;font-weight:800;letter-spacing:.08em;color:#527398}
 .app .pcc-mobile-study-hub h1{font-size:23px;line-height:1.2;letter-spacing:-.4px;margin:7px 0}
 .app .pcc-mobile-study-hub header p{font-size:13px;line-height:1.5;margin:0 0 15px;color:#576d88}
 .pcc-mobile-study-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
 .app .pcc-mobile-study-grid a{display:flex;flex-direction:column;align-items:flex-start;gap:7px;min-height:118px;min-width:0;padding:14px 12px;box-sizing:border-box;background:#f1f6ff;color:#1b426c;border:1px solid #dce8f7;border-radius:12px;text-decoration:none}
 .app .pcc-mobile-study-grid a.is-primary{background:#143c73;border-color:#143c73;color:#fff}
 .pcc-mobile-study-grid strong{font-size:14px;line-height:1.25;overflow-wrap:anywhere}
 .pcc-mobile-study-grid small{font-size:11px;line-height:1.4;opacity:.85}
 .app .pcc-mobile-dashboard-link{display:flex;gap:8px;align-items:center;min-height:44px;margin-top:10px;font-size:12px;font-weight:700;color:#1b4c85;text-decoration:none}
 .pcc-mobile-dashboard-link>span{margin-left:auto}
 .app .pcc-mobile-study-hub~.feed-welcome,.app .pcc-mobile-study-hub~.pcs-feature-shortcuts,.app .pcc-mobile-study-hub~.join-classes-block{display:none}
 .app .pcc-mobile-study-nav{position:fixed;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));left:0;right:0;bottom:0;z-index:40;margin:0;padding:6px 4px calc(6px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid #d9e3ef;box-shadow:0 -4px 18px #15314e0b;box-sizing:border-box;overflow:visible}
 .app .pcc-mobile-study-nav a,.app .pcc-mobile-study-nav button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-width:0;min-height:49px;width:auto;margin:0;padding:4px 2px;border:0;border-radius:8px;background:transparent;color:#586c83;text-decoration:none;font:600 10px/1.3 Arial,sans-serif;box-shadow:none;cursor:pointer}
 .app .pcc-mobile-study-nav [aria-current=page],.app .pcc-mobile-study-nav [aria-expanded=true]{color:#1459a9;background:#eaf3ff}
 .pcc-mobile-study-hub a:focus-visible,.pcc-mobile-study-nav :focus-visible{outline:3px solid #3181db;outline-offset:2px}
 .app:has(.pcc-mobile-study-nav){padding-bottom:calc(85px + env(safe-area-inset-bottom))}
 .app .sidebar.mobile-open{bottom:calc(66px + env(safe-area-inset-bottom));max-height:calc(100dvh - 140px);overflow-y:auto}
 .pcc-community-shell .pcs-header-ad{display:none}
 .pcc-community-shell .community-toolbar{padding:8px 12px;gap:8px}
 .pcc-community-shell .community-toolbar .social-search{min-width:0;flex:1}
 .pcc-community-shell .community-toolbar .social-search input{width:100%;min-width:0;box-sizing:border-box}
 .pcc-community-shell .forum-layout{gap:18px}
 .pcc-community-shell .forum-right{position:static;max-height:none;overflow:visible}
 .pcc-sidebar .pcc-tabs{display:flex;flex-direction:row;overflow-x:auto;gap:6px;padding-bottom:4px;overscroll-behavior-x:contain}
 .pcc-sidebar .pcc-tabs a{flex:0 0 auto;min-height:44px;width:auto;white-space:nowrap}
 .pcc-wrap .pcc-sidebar{min-width:0;overflow:hidden}
}
@media(max-width:360px){.app .pcc-mobile-study-hub{padding:14px}.app .pcc-mobile-study-hub h1{font-size:21px}.app .pcc-mobile-study-grid a{padding:12px 10px}.pcc-mobile-study-grid strong{font-size:13px}}

@media(max-width:760px){.pcc-floating-notices{bottom:calc(80px + env(safe-area-inset-bottom))!important;font-size:12px!important;padding:10px 14px!important}}