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(width<=600px){.sidebar{width:70px;padding:12px 4px}.sidebar-shop-btn{padding:6px 4px;font-size:.65rem}.sidebar-coins{font-size:.75rem}.reward-details{flex-direction:column}}@media (width<=1040px){.app-layout-dashboard{align-items:stretch;padding:18px}.dashboard-shell{grid-template-columns:104px minmax(0,1fr);min-height:calc(100dvh - 36px)}.home-practice-hero{grid-template-columns:1fr}.home-practice-action{min-height:300px}.shop-screen{grid-template-columns:260px minmax(0,1fr)}}@media (width<=760px){.app-layout-dashboard{padding:10px}.dashboard-shell{border-radius:24px;grid-template-columns:1fr;gap:18px;padding:16px}.tab-nav{flex-direction:row;justify-content:space-between;min-height:auto;padding:10px}.tab-nav-brand{display:none}.tab-nav-list{flex-direction:row}.tab-nav-button{border-radius:16px;min-height:60px}.dashboard-header{flex-direction:column;align-items:flex-start}.dashboard-header-actions{justify-content:space-between;width:100%}.dashboard-header h1{font-size:1.75rem}.account-panel{border-radius:18px}.account-form{flex-direction:column;align-items:stretch;width:100%}.account-login-row{width:100%}.account-email-input{width:100%;min-width:0}.tab-placeholder-grid,.progress-tab,.level-summary-grid{grid-template-columns:1fr}.home-practice-hero{min-height:auto;padding:22px}.home-practice-copy h2{font-size:1.7rem}.home-practice-hero 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avatar-jump{0%{transform:translateY(0)scale(1)}30%{transform:translateY(-20px)scale(1.05)}50%{transform:translateY(-25px)scale(1.08)}70%{transform:translateY(-10px)scale(1.03)}to{transform:translateY(0)scale(1)}}.avatar-jump{animation:.6s ease-out avatar-jump}.shop-screen{grid-template-rows:auto auto 1fr;grid-template-columns:minmax(300px,360px) minmax(0,1fr);align-items:start;gap:18px 36px;width:100%;padding-top:4px;display:grid}.shop-header{grid-column:1/-1;justify-content:space-between;align-items:center;gap:14px;display:flex}.shop-title{font-size:1.4rem;font-weight:900}.shop-balance{color:var(--text);font-size:1.1rem;font-weight:800}.shop-preview{box-shadow:none;background:0 0;border:0;border-radius:0;flex-direction:column;grid-area:1/1/span 3;justify-content:center;align-items:center;gap:18px;padding:4px 18px 0;display:flex;position:sticky;top:24px}.shop-preview .avatar-container{border-radius:38px;overflow:hidden;box-shadow:0 20px 48px #64508c24}.shop-preview-copy{text-align:center;flex-direction:column;gap:6px;display:flex}.shop-preview-copy strong{color:var(--text);font-size:1.1rem}.shop-preview-copy p,.equipped-panel p{color:var(--text-muted);font-size:.82rem;font-weight:700;line-height:1.45}.equipped-panel{border:1px solid var(--surface2);background:#fff;border-radius:18px;flex-direction:column;gap:10px;width:100%;padding:16px;display:flex;box-shadow:0 12px 28px #64508c14}.equipped-list{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.equipped-chip{color:var(--text);background:#fef8ec;border:1px solid #f5a62359;border-radius:999px;align-items:center;gap:6px;padding:7px 10px;font-size:.72rem;font-weight:900;display:inline-flex}.shop-buy-bar{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);border:2px solid var(--accent2);grid-area:2/2;justify-content:space-between;align-items:center;padding:12px 16px;animation:.3s pop;display:flex}.shop-buy-name{font-size:1rem;font-weight:700}.shop-buy-btn{white-space:nowrap;width:auto;margin-top:0;padding:10px 20px;font-size:.9rem}.shop-filters{flex-wrap:wrap;grid-area:1/2;gap:8px;display:flex}.shop-filter-btn{color:var(--text-muted);border:1px solid var(--surface2);background:#fff;border-radius:999px;padding:9px 13px;font-size:.78rem;font-weight:900}.shop-filter-btn:hover,.shop-filter-btn-active{color:var(--accent2);background:#fff4d9;border-color:#f5a62373}.shop-grid{grid-area:3/2;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;display:grid}.shop-card{background:var(--surface);border-radius:var(--radius);text-align:center;cursor:pointer;border:2px solid var(--surface2);flex-direction:column;align-items:center;gap:6px;min-height:132px;padding:16px 10px;transition:border-color .2s,transform 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