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rgba(255,255,255,.1);padding-top:14px}.copyright-label{font-size:12px;color:#888}.chatbot-toggle{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff;border:none;font-size:24px;cursor:pointer;box-shadow:0 4px 20px #1e3c7266;z-index:500;display:flex;align-items:center;justify-content:center;transition:all .3s}.chatbot-toggle:hover{transform:scale(1.1);box-shadow:0 6px 28px #1e3c7280}.chatbot-window{position:fixed;bottom:90px;right:24px;width:340px;max-height:480px;background:var(--bg-card);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-lg);z-index:500;display:flex;flex-direction:column;overflow:hidden;animation:slideUpBot .3s ease}@keyframes slideUpBot{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.chatbot-header{background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;font-weight:700;font-size:14px}.chatbot-body{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px;scrollbar-width:thin}.chatbot-msg{max-width:85%;padding:10px 14px;border-radius:14px;font-size:13px;line-height:1.5}.chatbot-msg.bot{background:var(--bg-hover);color:var(--text-primary);border-bottom-left-radius:4px;align-self:flex-start}.chatbot-msg.user{background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.chatbot-input-row{display:flex;gap:8px;padding:12px 14px;border-top:1px solid var(--border);background:var(--bg-card)}.chatbot-input-row input{flex:1;padding:9px 12px;border-radius:20px;border:1.5px solid var(--border);background:var(--bg-input);color:var(--text-primary);font-size:13px;width:auto;margin-bottom:0}.chatbot-input-row button{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff;border:none;font-size:16px;display:flex;align-items:center;justify-content:center;padding:0;flex-shrink:0}.quiz-option{padding:12px 16px;border:2px solid var(--border);border-radius:10px;cursor:pointer;transition:all .2s;background:var(--bg-card);color:var(--text-primary);font-size:14px;text-align:left;width:100%;margin-bottom:8px}.quiz-option:hover,.quiz-option.selected{border-color:var(--accent);background:var(--accent-light)}.quiz-option.correct{border-color:#28a745;background:#d4edda;color:#155724}.quiz-option.wrong{border-color:#dc3545;background:#f8d7da;color:#721c24}[data-theme=dark] .quiz-option.correct{background:#1a3d28;color:#a3d9a5}[data-theme=dark] .quiz-option.wrong{background:#3d1a1a;color:#f5a5a5}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:20px;box-shadow:var(--shadow-sm);transition:all .25s ease}.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--border-strong)}.news-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:all .25s ease;box-shadow:var(--shadow-sm)}.news-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--accent)}input,select,textarea{background:var(--bg-input);border:1.5px solid var(--border);color:var(--text-primary);border-radius:8px;padding:10px 14px;font-size:14px;font-family:inherit;transition:border-color .2s,box-shadow .2s;width:100%}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light)}input::placeholder{color:var(--text-muted)}[data-theme=dark] select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23a0aec0' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border:none;border-radius:10px;padding:11px 24px;font-size:14px;font-weight:700;cursor:pointer;transition:all .2s;box-shadow:0 3px 12px #1e3c7240}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 18px #1e3c7259}.section-title{font-size:20px;font-weight:800;color:var(--text-primary);margin-bottom:16px;display:flex;align-items:center;gap:8px}.section-title:after{content:"";flex:1;height:2px;background:linear-gradient(90deg,var(--accent),transparent);border-radius:2px;margin-left:8px}.spinner{width:40px;height:40px;border:4px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.mobile-ads-section{display:none}.mobile-ads-grid{display:grid;grid-template-columns:1fr;gap:12px}.mobile-ad-card{background:var(--bg-card);padding:14px;border-radius:12px;border:1px solid var(--border);text-align:center;box-shadow:var(--shadow-sm);transition:all .2s ease;display:flex;flex-direction:column;gap:8px;cursor:pointer;overflow:hidden}.mobile-ad-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.mobile-ad-card:active{box-shadow:var(--shadow-md);transform:translateY(-1px)}.mobile-ad-card img{width:100%;height:180px;object-fit:cover;border-radius:8px;display:block}@media (max-width: 1200px){:root{--right-width: 190px}}@media (max-width: 960px){.right-sidebar{display:none!important;visibility:hidden;width:0}.page-content{padding:18px}.personalized-sidebar{display:none}.mobile-ads-section{display:block;padding:12px 0}}@media (max-width: 768px){:root{--right-width: 0}.app-shell{display:block;background:var(--bg-page);width:100%;overflow-x:hidden}.left-sidebar{position:fixed;left:0;top:0;bottom:0;width:280px;transform:translate(-100%);transition:transform .28s cubic-bezier(.4,0,.2,1);z-index:300;box-shadow:4px 0 30px #0003}.left-sidebar.open{transform:translate(0)}.sidebar-overlay{display:block}.sidebar-close{display:block!important}.hamburger{display:flex!important}.app-main{width:100%;background:var(--bg-page);overflow-x:hidden}.main-row{width:100%;overflow-x:hidden;flex-direction:column}.page-content{padding:12px;background:var(--bg-page);width:100%;min-width:0}.right-sidebar{display:none!important;visibility:hidden;width:0}.topbar{gap:8px;padding:0 10px}.topbar-center{flex:1;min-width:0}.topbar-right{gap:6px;flex-shrink:1;min-width:0}.theme-toggle{width:32px;height:32px;font-size:14px;flex-shrink:0}.section-inner{max-width:100%;padding:12px}.profile-card{padding:20px;gap:16px}.profile-left img{width:90px;height:90px}.chatbot-window{width:calc(100vw - 32px);right:16px}.personalized-container{flex-direction:column}.personalized-news-grid{grid-template-columns:1fr}.mobile-ads-section{display:block;padding:14px 0;margin:0 auto;max-width:100%;width:100%}.mobile-ads-grid{grid-template-columns:1fr}}@media (max-width: 480px){:root{--right-width: 0}.left-sidebar{width:260px}.page-content{padding:10px}.slide img{height:180px}.auth-box{padding:24px 18px;margin:16px auto}.profile-card{flex-direction:column;align-items:center;text-align:center}.footer-row{flex-direction:column;gap:10px}.topbar{gap:6px;padding:0 8px}.topbar-right{gap:4px}.theme-toggle{width:30px;height:30px;font-size:13px}.topbar-center{font-size:12px}}[data-theme=dark] .left-sidebar a,[data-theme=dark] .left-sidebar button{color:var(--text-primary)!important}[data-theme=dark] .left-sidebar nav a:not([style*=linear-gradient]),[data-theme=dark] .left-sidebar nav button:not([style*=linear-gradient]){color:#c8d8f0!important}