:root{--clr-indigo:var(--primary);--clr-indigo-d:var(--primary-dark);--clr-purple:#a855f7;--clr-purple-d:#7c3aed;--clr-blue:var(--primary);--clr-blue-d:var(--primary);--clr-green:#22c55e;--clr-green-d:#16a34a;--clr-red:#ef4444;--clr-red-d:#dc2626;--clr-amber:#f59e0b;--clr-amber-d:#d97706;--clr-teal:#14b8a6;--clr-pink:#ec4899;--surface-page:#f0f2ff;--surface-card:#fff;--surface-muted:#f8faff;--surface-border:var(--primary-12);--text-primary:#1e1b4b;--text-secondary:#475569;--text-muted:#94a3b8;--grad-brand:linear-gradient(135deg, var(--primary), var(--secondary));--grad-blue:linear-gradient(135deg, var(--primary-light), var(--primary));--grad-green:linear-gradient(135deg, #34d399, #059669);--grad-red:linear-gradient(135deg, #f87171, #dc2626);--grad-amber:linear-gradient(135deg, #fbbf24, #d97706);--grad-pink:linear-gradient(135deg, #f472b6, #db2777);--grad-teal:linear-gradient(135deg, #2dd4bf, #0d9488);--grad-dark:linear-gradient(135deg, #1e1b4b, #312e81, var(--primary-dark));--grad-rainbow:linear-gradient(90deg, var(--primary), #a855f7, #ec4899);--shadow-card:0 2px 16px rgba(var(--primary-rgb), .08);--shadow-brand:0 8px 24px rgba(var(--primary-rgb), .3);--shadow-sm:0 1px 4px #0000000f;--radius-sm:10px;--radius-md:16px;--radius-lg:22px;--radius-xl:28px;--page-pad-x:clamp(12px, 4vw, 32px);--page-pad-y:clamp(16px, 3vw, 28px)}*,:before,:after{box-sizing:border-box}.ds-page{background:var(--surface-page);min-height:100dvh;font-family:inherit}.ds-card{background:var(--surface-card);border:1px solid var(--surface-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}.ds-card-dark{background:var(--grad-dark);border-radius:var(--radius-lg);overflow:hidden}.ds-icon-badge{border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.ds-section-label{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:12px;font-size:11px;font-weight:900}.ds-pill{border-radius:99px;align-items:center;padding:3px 10px;font-size:12px;font-weight:700;display:inline-flex}.ds-btn{border-radius:var(--radius-sm);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:800;text-decoration:none;transition:transform .2s,box-shadow .2s,filter .15s;display:inline-flex}.ds-btn:hover{filter:brightness(1.06);transform:translateY(-2px)}.ds-btn:active{transform:translateY(0)scale(.97)}.ds-btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 6px 18px rgba(var(--primary-rgb), .35)}.ds-btn-ghost{background:var(--surface-muted);color:var(--clr-indigo);border:1px solid var(--surface-border)}.ds-search{background:var(--surface-muted);border:1px solid var(--surface-border);border-radius:var(--radius-sm);align-items:center;gap:10px;padding:9px 14px;transition:border-color .15s;display:flex}.ds-search:focus-within{border-color:var(--clr-indigo)}.ds-search input{color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;min-width:0;font-size:14px;font-weight:500}.ds-stat-card{border-radius:var(--radius-md);border:1px solid var(--surface-border);background:var(--surface-card);flex-direction:column;gap:6px;padding:16px 18px;transition:transform .2s,box-shadow .2s;display:flex}.ds-stat-card:hover{box-shadow:0 6px 20px rgba(var(--primary-rgb), .12);transform:translateY(-2px)}.ds-table{border-collapse:collapse;width:100%;font-size:14px}.ds-table 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0;border:none;border-radius:12px;flex-direction:column;align-items:center;gap:3px;min-width:52px;padding:6px 12px;text-decoration:none;transition:background .15s;display:flex}.ds-mobile-nav-item.active{background:var(--primary-10)}.ds-mobile-nav-item i{color:var(--text-muted);font-size:18px}.ds-mobile-nav-item.active i{color:var(--clr-indigo)}.ds-mobile-nav-item span{color:var(--text-muted);font-size:10px;font-weight:700}.ds-mobile-nav-item.active span{color:var(--clr-indigo)}@media (max-width:767px){.ds-mobile-nav{display:block}.ds-page-content{padding-bottom:80px!important}.ds-grid-auto,.ds-grid-2{grid-template-columns:1fr!important}.ds-grid-3{grid-template-columns:1fr 1fr!important}.ds-card{border-radius:18px}.ds-table-hide-mobile{display:none!important}.ds-btn{min-height:44px;padding:10px 18px}.ds-sidebar-hide{display:none!important}.ds-header-title{font-size:18px!important}}@media (min-width:768px) and (max-width:1023px){.ds-grid-3{grid-template-columns:1fr 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rgba(var(--primary-rgb), .08);border-radius:99px}.app-footer-brand{border:1px solid rgba(var(--primary-rgb), .14);min-height:48px;color:var(--text-primary);background:linear-gradient(135deg, #fffffff0, #ffffffc7), color-mix(in srgb, var(--primary) 5%, white 95%);border-radius:999px;align-items:center;gap:9px;padding:6px 13px 6px 8px;transition:transform .18s,box-shadow .18s,border-color .18s,background .18s;display:inline-flex;box-shadow:0 8px 24px #0f172a0f,inset 0 1px #ffffffd9}.app-footer-brand:hover{border-color:rgba(var(--primary-rgb), .26);background:linear-gradient(135deg, #fffffffa, #ffffffd6), color-mix(in srgb, var(--primary) 9%, white 91%);box-shadow:0 14px 34px rgba(var(--primary-rgb), .14), inset 0 1px 0 #ffffffe6;transform:translateY(-2px)}.app-footer-brand:active{transform:translateY(0)scale(.99)}.app-footer-brand-kicker{color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;font-size:11px;font-weight:900}.app-footer-brand-logo{-o-object-fit:contain;object-fit:contain;width:38px;height:38px;filter:drop-shadow(0 5px 10px rgba(var(--primary-rgb), .18));background:radial-gradient(circle at 45% 42%,#fff 0 34%,#ffffffb3 35% 100%);border-radius:12px;flex:0 0 38px}.app-footer-brand-text{color:var(--text-primary);letter-spacing:.01em;white-space:nowrap;font-size:14px;font-weight:900}@media (max-height:540px) and (max-width:950px) and (orientation:landscape){:root{--ls-dock-left:max(6px, env(safe-area-inset-left));--ls-dock-width:58px;--ls-content-left:calc(var(--ls-dock-left) + var(--ls-dock-width) + 10px);--ls-content-right:max(10px, 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#fffffff2!important}.ds-mobile-nav:after{display:none!important}.ds-mobile-nav::-webkit-scrollbar{display:none!important}.ds-mobile-nav-list{scroll-snap-type:none!important;grid-template-columns:1fr!important;gap:5px!important;width:100%!important;max-width:none!important;margin:0!important;padding:0!important;display:grid!important;overflow:visible!important}.ds-mobile-nav-link{color:#697386!important;border-radius:17px!important;flex:none!important;place-items:center!important;gap:0!important;width:50px!important;min-width:0!important;height:44px!important;min-height:44px!important;text-decoration:none!important;display:grid!important}.ds-mobile-nav-icon{border-radius:15px!important;place-items:center!important;width:34px!important;height:34px!important;display:grid!important}.ds-mobile-nav-link i{font-size:15px!important}.ds-mobile-nav-label{display:none!important}.ds-mobile-nav-link.is-active{color:var(--primary)!important;background:color-mix(in srgb, var(--primary) 9%, white 91%)!important}.ds-mobile-nav-link.is-active .ds-mobile-nav-icon{color:#fff!important;background:linear-gradient(135deg, var(--primary), var(--secondary))!important;box-shadow:0 8px 18px rgba(var(--primary-rgb), .22)!important}.feedback-float-btn{left:max(12px, env(safe-area-inset-left))!important;right:auto!important;bottom:max(8px, env(safe-area-inset-bottom))!important;border-radius:15px!important;width:42px!important;height:42px!important}.ld-page,.learn-dashboard,.achievements-screen,.analytics-screen{max-width:100%!important}.ld-hero,.ld-toolbar,.ds-card,.rounded-\[28px\],.rounded-3xl{border-radius:18px!important}h1{font-size:clamp(20px,4vw,28px)!important;line-height:1.08!important}h2{font-size:clamp(17px,3vw,22px)!important}table{font-size:13px!important}input,select,textarea,button{min-height:38px}}.app-footer-link{color:#475569d1;font-size:.86rem;font-weight:700;text-decoration:none;transition:color 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12px;font-size:12px;font-weight:600;display:inline-block}.admin-status-badge.active{color:#10b981;background:#10b9811a}.admin-status-badge.inactive{color:#6b7280;background:#9ca3af1a}.admin-actions{gap:8px;display:flex}.admin-action-btn{color:#6b7280;cursor:pointer;background:#f3f4f6;border:none;border-radius:6px;padding:6px 12px;font-size:12px;font-weight:600;transition:all .2s}.admin-action-btn:hover{color:#374151;background:#e5e7eb}.admin-action-btn.primary:hover{background:rgba(var(--primary-rgb), .1);color:var(--primary)}.admin-action-btn.danger:hover{color:#ef4444;background:#ef44441a}.login-page{background:linear-gradient(135deg, rgba(var(--primary-rgb), .05) 0%, #764ba20d 100%);justify-content:center;align-items:center;min-height:100dvh;padding:40px 20px;display:flex}.login-logo{text-align:center;margin-bottom:32px}.login-logo-icon{margin-bottom:16px;font-size:48px}.login-tabs{background:#f3f4f6;border-radius:8px;gap:8px;margin-bottom:32px;padding:4px;display:flex}.login-tab{color:#6b7280;cursor:pointer;background:0 0;border:none;border-radius:6px;flex:1;padding:12px;font-size:14px;font-weight:600;transition:all .2s}.login-tab.active{color:var(--primary);background:#fff;box-shadow:0 2px 4px #0000000d}.form-input-group{position:relative}.form-input-icon{color:#9ca3af;font-size:18px;position:absolute;top:50%;left:16px;transform:translateY(-50%)}.form-input.with-icon{padding-left:48px}.form-input-hint{color:#9ca3af;margin-top:6px;font-size:12px}.form-checkbox-group{align-items:center;gap:12px;margin:16px 0;display:flex}.form-checkbox{cursor:pointer;width:18px;height:18px}.form-checkbox-label{color:#374151;cursor:pointer;font-size:14px}.form-link{color:var(--primary);font-weight:600;text-decoration:none;transition:color .2s}.form-link:hover{color:#5568d3}.social-login{gap:12px;margin-top:24px;display:flex}.social-login-btn{color:#374151;cursor:pointer;background:#fff;border:2px solid #e5e7eb;border-radius:8px;flex:1;justify-content:center;align-items:center;gap:8px;padding:12px;font-size:14px;font-weight:600;transition:all .2s;display:flex}.social-login-btn:hover{border-color:var(--primary);background:rgba(var(--primary-rgb), .02)}.social-login-icon{font-size:20px}.login-footer{text-align:center;color:#6b7280;margin-top:32px;font-size:14px}.search-input-container{margin-bottom:24px;position:relative}.search-input{border:2px solid #e5e7eb;border-radius:12px;width:100%;padding:14px 48px;font-size:16px;transition:all .2s}.search-input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(var(--primary-rgb), .1);outline:none}.search-icon{color:#9ca3af;font-size:20px;position:absolute;top:50%;left:16px;transform:translateY(-50%)}.search-clear{cursor:pointer;color:#6b7280;background:#e5e7eb;border:none;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;font-size:14px;transition:all .2s;display:flex;position:absolute;top:50%;right:16px;transform:translateY(-50%)}.search-clear:hover{color:#374151;background:#d1d5db}.pagination{justify-content:center;align-items:center;gap:8px;margin-top:40px;display:flex}.pagination-btn{color:#6b7280;cursor:pointer;background:#fff;border:2px solid #e5e7eb;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:600;transition:all .2s}.pagination-btn:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}.pagination-btn:disabled{opacity:.5;cursor:not-allowed}.pagination-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.pagination-info{color:#6b7280;padding:10px 16px;font-size:14px}@media (max-width:768px){.word-modal{max-width:calc(100% - 40px);margin:20px}.flashcard-stats,.flashcard-actions{flex-direction:column}.flashcard-actions button{width:100%}.word-list-filters{flex-direction:column}.word-list-filter{text-align:center;width:100%}.admin-user-table{display:block;overflow-x:auto}.login-container{margin:20px;padding:32px 24px}.social-login{flex-direction:column}}@media print{.word-modal-actions,.flashcard-actions,.word-list-actions,.admin-actions{display:none}.word-modal,.flashcard-container,.word-list-item{box-shadow:none;border:1px solid #e5e7eb}}