.auth-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0a14328c;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .3s ease;padding:20px;box-sizing:border-box}@keyframes fadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.auth-modal{background:#fff;border-radius:20px;padding:36px 40px 40px;max-width:440px;width:100%;max-height:90vh;overflow-y:auto;position:relative;box-shadow:0 24px 70px #0a143259;border-top:5px solid var(--brand, #1a3c8c)}.auth-modal-close{position:absolute;top:16px;right:16px;background:#f2f4f9;border:none;cursor:pointer;color:#666;padding:8px;border-radius:50%;transition:all .2s;display:flex;align-items:center;justify-content:center}.auth-modal-close:hover{background:#e6e9f2;color:#1b2233}.auth-modal-header{margin-bottom:24px;text-align:center}.auth-modal-badge{width:56px;height:56px;margin:0 auto 14px;border-radius:16px;background:linear-gradient(135deg,var(--brand, #1a3c8c),var(--brand-dark, #122a63));color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px #1a3c8c59}.auth-modal-header h2{font-size:24px;font-weight:800;color:#1a1a2e;margin:0 0 6px}.auth-modal-header p{color:#666;font-size:14px;margin:0}.course-info-banner{display:flex;align-items:center;gap:10px;margin-top:16px;padding:12px 16px;background:#fff7e6;border-radius:10px;border:1px solid #ffe2a8;font-size:14px;color:#8a5a00;text-align:left}.auth-error{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#fdecec;border-radius:10px;border:1px solid #f8c9c9;color:#c0392b;font-size:14px;margin-bottom:16px}.auth-success-modal{display:flex;flex-direction:column;align-items:center;text-align:center;padding:44px 32px;animation:fadeIn .25s ease;border-top:none}.auth-success-icon{width:76px;height:76px;border-radius:50%;background:linear-gradient(135deg,#1f9d55,#17c964);color:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:22px;box-shadow:0 10px 24px #1f9d554d}.auth-success-title{font-size:19px;font-weight:800;color:#1a1a2e;margin:0 0 26px;line-height:1.4}.auth-success-ok{width:100%}.auth-form{display:flex;flex-direction:column;gap:16px}.auth-form-group{display:flex;flex-direction:column;gap:6px}.auth-form-group label{font-size:13.5px;font-weight:700;color:#333}.auth-form-group input{padding:13px 14px;border:1.5px solid #e2e5ee;border-radius:10px;font-size:14.5px;background:#f9fafc;transition:border-color .2s,background .2s,box-shadow .2s}.auth-form-group input:focus{outline:none;background:#fff;border-color:var(--brand, #1a3c8c);box-shadow:0 0 0 3px #1a3c8c1f}.auth-form-group input::placeholder{color:#aaa}.password-field{position:relative;display:flex}.password-field input{width:100%;padding-right:42px}.password-toggle-btn{position:absolute;top:50%;right:6px;transform:translateY(-50%);background:none;border:none;cursor:pointer;color:#888;padding:6px;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:color .2s,background .2s}.password-toggle-btn:hover{color:#333;background:#eef1f8}.forgot-password-row{display:flex;justify-content:flex-end;margin-top:6px}.forgot-password-link{background:none;border:none;color:var(--brand, #1a3c8c);font-size:13px;font-weight:700;cursor:pointer;padding:2px 0}.forgot-password-link:hover{text-decoration:underline}.auth-success-inline{text-align:center;padding:8px 0 4px}.auth-success-inline svg{color:#1e7e34;margin-bottom:12px}.auth-success-inline p{color:#333;font-size:14px;margin-bottom:20px}.auth-success-inline.not-registered svg{color:#c0392b}.auth-success-inline .auth-switch-btn{display:block;margin:10px auto 0}.auth-submit-btn{padding:15px;background:linear-gradient(135deg,var(--brand, #1a3c8c),var(--brand-dark, #122a63));color:#fff;border:none;border-radius:10px;font-size:16px;font-weight:700;cursor:pointer;transition:filter .2s,transform .15s,box-shadow .2s;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 10px 24px #1a3c8c40;margin-top:4px}.auth-submit-btn:hover:not(:disabled){filter:brightness(1.08);transform:translateY(-1px)}.auth-submit-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.auth-modal-footer{margin-top:22px;text-align:center;font-size:14px;color:#666;padding-top:20px;border-top:1px solid #eef0f6}.auth-switch-btn{background:none;border:none;color:var(--brand, #1a3c8c);font-weight:700;cursor:pointer;padding:4px 8px;border-radius:4px;transition:background .2s}.auth-switch-btn:hover{background:#eef1f8}@media (max-width: 480px){.auth-modal{padding:28px 24px 32px}.auth-modal-header h2{font-size:20px}}.payment-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1001;animation:fadeIn .3s ease}.payment-modal{background:#fff;border-radius:16px;padding:40px;max-width:480px;width:100%;max-height:90vh;overflow-y:auto;position:relative;box-shadow:0 20px 60px #0000004d}.payment-modal-close{position:absolute;top:16px;right:16px;background:none;border:none;cursor:pointer;color:#666;padding:8px;border-radius:50%;transition:all .2s;display:flex;align-items:center;justify-content:center}.payment-modal-close:hover{background:#f0f0f0;color:#333}.payment-modal-header{margin-bottom:24px}.payment-modal-header h2{font-size:24px;font-weight:700;color:#1a1a2e;margin:0 0 8px}.payment-modal-header p{color:#666;font-size:14px;margin:0}.payment-course-details{background:#f8f9fa;border-radius:12px;padding:20px;margin-bottom:24px}.payment-course-details h3{font-size:16px;margin:0 0 12px;color:#333}.payment-price{margin-bottom:16px}.price-amount{font-size:28px;font-weight:700;color:#1a1a2e}.payment-features{display:flex;flex-direction:column;gap:8px}.feature-item{display:flex;align-items:center;gap:10px;font-size:14px;color:#555}.feature-item svg{color:#28a745}.payment-btn{width:100%;padding:16px;background:#28a745;color:#fff;border:none;border-radius:8px;font-size:18px;font-weight:600;cursor:pointer;transition:background .2s;display:flex;align-items:center;justify-content:center;gap:8px}.payment-btn:hover:not(:disabled){background:#218838}.payment-btn:disabled{opacity:.7;cursor:not-allowed}.payment-secure{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:16px;color:#888;font-size:13px}.payment-razorpay-badge{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:12px;padding-top:12px;border-top:1px solid #eee;color:#999;font-size:12px}.spinner{display:inline-block;width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 480px){.payment-modal{padding:24px;margin:16px}}:root{--brand: #1a3c8c;--brand-dark: #122a63;--accent: #f5a623;--accent-dark: #e0930f;--ink: #1b2233;--muted: #5b657a;--line: #e6e9f0;--bg: #ffffff;--bg-alt: #f5f7fb;--green: #1f9d55;--red: #e23b3b;--radius: 12px;--shadow: 0 2px 10px rgba(20, 30, 60, .07);--shadow-lg: 0 10px 30px rgba(20, 30, 60, .14)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Segoe UI,system-ui,-apple-system,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg-alt);line-height:1.55;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}.header-inner{max-width:1240px;margin:0 auto;padding:0 24px;height:70px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}.logo-text{font-size:26px;font-weight:800;color:var(--brand);letter-spacing:-.5px}.exam-select{display:flex;align-items:center;gap:6px;font:inherit;font-weight:600;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 16px;cursor:pointer;color:var(--ink);white-space:nowrap}.exam-select:hover{border-color:var(--brand)}.search{flex:1;display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:0 16px;height:46px;color:var(--muted);min-width:200px}.search:focus-within{border-color:var(--brand)}.search input{flex:1;border:none;outline:none;font:inherit;font-size:15px;color:var(--ink);background:transparent}.login{font:inherit;font-weight:600;background:var(--brand);color:#fff;border:none;border-radius:10px;padding:11px 22px;cursor:pointer;white-space:nowrap}.login:hover{background:var(--brand-dark)}.main-nav{display:flex;align-items:center;gap:2px;flex-shrink:0}.main-nav-link{padding:9px 13px;border-radius:8px;font-weight:600;font-size:14px;color:var(--ink);white-space:nowrap}.main-nav-link:hover{background:var(--bg-alt);color:var(--brand)}.main-nav-link.active{color:var(--brand);background:#1a3c8c14}.nav-dropdown{position:relative}.nav-dropdown-trigger{display:inline-flex;align-items:center;gap:4px;cursor:default}.nav-dropdown:hover .nav-dropdown-trigger{background:var(--bg-alt);color:var(--brand)}.nav-dropdown-menu{display:none;position:absolute;top:100%;left:0;min-width:230px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-lg);padding:8px;margin-top:4px;z-index:70}.nav-dropdown:hover .nav-dropdown-menu{display:block}.nav-dropdown-item{display:block;padding:10px 12px;border-radius:7px;font-size:14px;font-weight:600;color:var(--ink)}.nav-dropdown-item:hover{background:var(--bg-alt);color:var(--brand)}.header-contact{display:flex;align-items:center;gap:8px;flex-shrink:0}.header-contact-btn{display:flex;align-items:center;gap:6px;padding:9px 14px;border-radius:8px;font-weight:700;font-size:13px;white-space:nowrap;border:1.5px solid transparent}.header-contact-btn.whatsapp{background:#fff;color:var(--green);border-color:var(--green)}.header-contact-btn.whatsapp:hover{background:#e9f9ee}.mobile-menu-toggle{display:none;background:none;border:none;cursor:pointer;color:var(--brand);padding:8px;border-radius:8px;align-items:center;justify-content:center;flex-shrink:0}.mobile-menu-toggle:hover{background:var(--bg-alt)}.mobile-nav-panel{display:flex;flex-direction:column;gap:2px;padding:10px 16px 16px;border-top:1px solid var(--line)}.mobile-nav-panel .main-nav-link{padding:12px}.mobile-nav-contact{display:flex;flex-direction:column;gap:8px;margin-top:8px}.mobile-nav-contact .header-contact-btn{justify-content:center;padding:12px}.mobile-nav-panel .nav-dropdown-trigger{padding:12px 12px 4px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);pointer-events:none}.mobile-nav-panel .nav-dropdown-menu{display:block;position:static;box-shadow:none;border:none;padding:0;margin:0}.mobile-nav-panel .nav-dropdown-item{padding:10px 12px 10px 22px}@media (max-width: 1100px){.main-nav,.header-contact{display:none}.mobile-menu-toggle{display:flex}}@media (min-width: 1101px){.mobile-nav-panel{display:none}}.banner-carousel{position:relative;width:100%;overflow:hidden;background:#111;aspect-ratio:1920 / 600}@media (max-width: 640px){.banner-carousel{aspect-ratio:4 / 3}}.intro{background:#fff;border-bottom:1px solid var(--line);padding:30px 0 34px}.intro h1{font-size:28px;font-weight:800;margin-bottom:12px}.intro p{color:var(--muted);font-size:15px;max-width:1000px}.layout{display:grid;grid-template-columns:240px 1fr;gap:28px;padding-top:28px;padding-bottom:48px;align-items:start}.sidebar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:sticky;top:90px}.sidebar-title{font-size:19px;font-weight:800;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:6px}.filter-group{border-bottom:1px solid var(--line);padding:6px 0}.filter-group:last-child{border-bottom:none}.filter-head{width:100%;display:flex;justify-content:space-between;align-items:center;background:none;border:none;font:inherit;font-weight:700;font-size:15px;padding:12px 0;cursor:pointer;color:var(--ink)}.caret{color:var(--muted);transition:transform .2s ease;display:inline-flex}.caret.up{transform:rotate(180deg)}.filter-list{list-style:none;padding-bottom:8px;display:grid;gap:10px}.filter-list label{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted);cursor:pointer}.filter-list input{width:16px;height:16px;accent-color:var(--brand);cursor:pointer}.filter-count{color:var(--muted);font-size:12px}.sub-category-title{font-size:15px;font-weight:700;padding:12px 0 8px;color:var(--ink)}.sub-category-list{list-style:none;display:grid;gap:8px;padding-bottom:8px}.sub-category-link{background:none;border:none;font:inherit;font-size:14px;color:var(--brand);text-align:left;padding:0;cursor:pointer}.sub-category-link:hover{text-decoration:underline}.sub-category-link.active{font-weight:700;color:var(--brand-dark)}.preview-notice{background:#fff7e6;border:1px solid #ffe2a8;color:#8a5a00;border-radius:var(--radius);padding:12px 16px;font-size:14px;margin-bottom:20px}.category-filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin:4px 0 18px}.category-filter-btn{display:inline-flex;align-items:center;gap:9px;font:inherit;font-weight:600;font-size:14.5px;background:#fff;color:var(--muted);border:1.5px solid var(--line);border-radius:999px;padding:8px 18px 8px 10px;cursor:pointer;transition:background .15s,color .15s,border-color .15s,box-shadow .15s}.category-filter-btn:hover{border-color:#c7d0e6;color:var(--ink);background:var(--bg-alt)}.category-filter-icon{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--bg-alt);color:var(--muted);transition:background .15s,color .15s}.category-filter-btn.active{background:#1a3c8c14;border-color:var(--brand);color:var(--brand-dark);box-shadow:0 0 0 1px #1a3c8c14}.category-filter-btn.active .category-filter-icon{background:var(--brand);color:#fff}.category-filter-btn .count{font-weight:700;font-size:12px;color:inherit;opacity:.65}.category-blurb{color:var(--muted);font-size:14.5px;margin:-6px 0 20px;max-width:640px}.foundation-section{margin-bottom:36px}.foundation-intro{background:linear-gradient(135deg,#1a3c8c0f,#f5a62312);border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px;margin-bottom:22px}.foundation-intro h2{font-size:22px;font-weight:800;margin-bottom:6px}.foundation-intro p{color:var(--muted);font-size:14.5px;max-width:620px}.subject-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}.subject-tab{display:inline-flex;align-items:center;gap:10px;font:inherit;font-weight:700;font-size:15px;background:#fff;color:var(--muted);border:1.5px solid var(--line);border-radius:var(--radius);padding:12px 20px 12px 12px;cursor:pointer;transition:background .15s,color .15s,border-color .15s,box-shadow .15s}.subject-tab:hover{border-color:#c7d0e6;color:var(--ink)}.subject-tab-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--bg-alt);color:var(--muted);transition:background .15s,color .15s}.subject-tab .count{font-weight:700;font-size:12px;opacity:.65;background:var(--bg-alt);border-radius:999px;padding:2px 8px}.subject-tab.active{color:var(--ink);box-shadow:var(--shadow)}.subject-tab-quant.active{border-color:var(--brand)}.subject-tab-quant.active .subject-tab-icon{background:var(--brand);color:#fff}.subject-tab-reasoning.active{border-color:var(--accent-dark)}.subject-tab-reasoning.active .subject-tab-icon{background:var(--accent);color:#fff}.subject-tab-english.active{border-color:var(--green)}.subject-tab-english.active .subject-tab-icon{background:var(--green);color:#fff}.foundation-empty{color:var(--muted);font-size:14.5px;padding:28px 0}.foundation-subheading{font-size:17px;font-weight:800;margin:30px 0 14px}.exam-card-meta{color:var(--muted);font-size:12.5px;margin-top:-4px}.foundation-video-list{list-style:none;margin:4px 0 14px;padding:0;display:flex;flex-direction:column;gap:6px;max-height:160px;overflow-y:auto}.foundation-video-list li{font-size:13px;color:var(--ink);line-height:1.4}.foundation-video-list.locked li{color:var(--muted);display:flex;align-items:center;gap:6px}.foundation-video-list.locked li svg{flex-shrink:0;opacity:.7}.foundation-video-link{display:inline-flex;align-items:center;gap:6px;font:inherit;font-size:13px;font-weight:600;color:var(--brand);background:none;border:none;padding:0;cursor:pointer;text-align:left}.foundation-video-link:hover{text-decoration:underline}@media (max-width: 640px){.foundation-intro{padding:18px}.subject-tabs{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:2px}.subject-tabs::-webkit-scrollbar{display:none}.subject-tab{flex-shrink:0;padding:10px 16px 10px 8px;font-size:14px}.subject-tab-icon{width:26px;height:26px}}@media (max-width: 640px){.category-filter-bar{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:2px}.category-filter-bar::-webkit-scrollbar{display:none}.category-filter-btn{flex-shrink:0;padding:6px 14px 6px 6px;font-size:13.5px}.category-filter-icon{width:24px;height:24px}}.cat-section{margin-bottom:36px}.cat-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.cat-head h2{font-size:22px;font-weight:800}.cat-head .count{color:var(--muted);font-weight:600}.view-all{display:inline-flex;align-items:center;gap:2px;color:var(--brand);font-weight:700;font-size:14px}.view-all:hover{text-decoration:underline}.card-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;scroll-snap-align:start;display:flex;flex-direction:column;transition:transform .15s ease,box-shadow .15s ease}.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}.thumb{position:relative;aspect-ratio:16 / 10;padding:16px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:#fff;overflow:hidden}.thumb-badge{position:absolute;top:10px;left:10px;background:#00000047;font-size:10px;font-weight:800;letter-spacing:.5px;padding:4px 8px;border-radius:5px}.thumb-name{font-size:16px;font-weight:800;line-height:1.25;text-shadow:0 1px 4px rgba(0,0,0,.3)}.thumb-year{font-size:26px;font-weight:900;opacity:.85;margin-top:4px;letter-spacing:1px}.thumb-blue{background:linear-gradient(135deg,#1a3c8c,#2d6fd6)}.thumb-green{background:linear-gradient(135deg,#0f5132,#1f9d55)}.thumb-navy{background:linear-gradient(135deg,#0b1f4d,#1f3a8a)}.thumb-olive{background:linear-gradient(135deg,#4d4413,#8a7c1f)}.thumb-purple{background:linear-gradient(135deg,#3b1f6b,#7c3aed)}.thumb-teal{background:linear-gradient(135deg,#0c4a4a,#14b8a6)}.thumb-orange{background:linear-gradient(135deg,#9a4d0c,#f59e0b)}.thumb-red{background:linear-gradient(135deg,#7a1212,#e23b3b)}.card-body{padding:14px;display:flex;flex-direction:column;gap:8px;flex:1}.card-tags{display:flex;align-items:center;gap:6px}.tag{font-size:11px;font-weight:700;padding:4px 9px;border-radius:5px}.tag-lang{background:#eef1f8;color:var(--muted)}.tag-type{background:#1a3c8c1a;color:var(--brand)}.tag-owned{background:#1f9d551f;color:var(--green)}.like{margin-left:auto;background:none;border:none;cursor:pointer;color:#c2c9d6;display:inline-flex}.like.on{color:var(--red)}.card-title{font-size:15px;font-weight:700;line-height:1.3;min-height:38px}.card-rating{display:inline-flex;align-items:center;gap:4px;font-size:13px;font-weight:700;color:var(--accent-dark)}.card-price{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}.card-price .now{font-size:20px;font-weight:800;color:var(--ink)}.card-price .mrp{font-size:13px;color:var(--muted);text-decoration:line-through}.card-price .off{font-size:12px;font-weight:700;color:var(--green)}.add-btn{margin-top:4px;font:inherit;font-weight:700;font-size:14px;background:var(--accent);color:#1b2233;border:none;border-radius:8px;padding:10px;cursor:pointer;transition:background .15s ease}.add-btn:hover{background:var(--accent-dark)}.owned-btn{background:var(--green);color:#fff}.owned-btn:hover{background:#178a49}.cta-pill{margin-top:4px;font:inherit;font-weight:700;font-size:13px;background:var(--accent);color:#1b2233;border:none;border-radius:999px;padding:10px 16px;cursor:pointer;transition:background .15s ease;display:inline-flex;align-items:center;justify-content:center;gap:6px;text-decoration:none;width:100%;box-sizing:border-box}.cta-pill:hover{background:var(--accent-dark)}.card-badge-circle{position:absolute;top:10px;right:10px;width:28px;height:28px;border-radius:50%;background:#ffffffe6;color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800}.live-spotlight{margin-top:24px}.live-status-badge{position:absolute;top:10px;left:10px;font-size:10px;font-weight:800;letter-spacing:.5px;padding:4px 8px;border-radius:5px;color:#fff;background:#00000059}.live-status-badge.status-live{background:var(--red);animation:live-pulse 1.6s ease-in-out infinite}.live-status-badge.status-upcoming{background:var(--brand)}.live-status-badge.status-ended{background:#00000073}@keyframes live-pulse{0%,to{box-shadow:0 0 #e23b3b80}50%{box-shadow:0 0 0 6px #e23b3b00}}.live-class-meta{display:flex;flex-direction:column;gap:3px;font-size:12.5px;color:var(--muted)}.live-class-meta strong{color:var(--ink)}.cta-pill.live-pill{background:var(--red);color:#fff}.cta-pill.live-pill:hover{background:#c53030}.cta-pill.recording-pill{background:var(--green);color:#fff}.cta-pill.recording-pill:hover{background:#178a49}.upcoming-note{margin-top:4px;font-size:13px;font-weight:700;color:var(--brand);background:#eef1f8;border-radius:999px;padding:10px 16px;text-align:center}.recording-pending-note{margin-top:4px;font-size:13px;font-weight:600;color:var(--muted);background:#f5f7fb;border-radius:999px;padding:10px 16px;text-align:center}.recorded-spotlight{margin-top:24px}.exam-card-cover{position:relative;overflow:hidden}.exam-card-cover img{width:100%;height:auto;display:block}.exam-card-cover-fallback{aspect-ratio:16 / 10;width:100%;display:flex;align-items:center;justify-content:center;text-align:center;padding:16px;color:#fff}.exam-card-cover-fallback .thumb-name{font-size:16px;font-weight:800}.locked-card .thumb{position:relative;opacity:.85;filter:grayscale(.25)}.lock-overlay{background:#00000073;color:#fff}.locked-btn{background:#eef1f8;color:var(--muted)}.locked-btn:hover{background:#e3e7f3}.media-viewer-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;display:flex;align-items:center;justify-content:center;z-index:1000;padding:24px;box-sizing:border-box}.media-viewer{background:#fff;border-radius:12px;overflow:hidden;width:100%;max-width:960px;max-height:90vh;display:flex;flex-direction:column;box-shadow:0 20px 60px #00000059}.media-viewer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line)}.media-viewer-head h3{margin:0;font-size:15px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.media-viewer-head-actions{display:flex;align-items:center;gap:6px;flex-shrink:0}.media-viewer-fullscreen{background:#eef1f8;border:none;font:inherit;font-size:13px;font-weight:700;cursor:pointer;color:var(--ink);padding:6px 12px;border-radius:6px;white-space:nowrap}.media-viewer-fullscreen:hover{background:#e3e7f3}.media-viewer-close{background:none;border:none;font-size:18px;line-height:1;cursor:pointer;color:var(--muted);padding:4px 8px;border-radius:6px}.media-viewer-close:hover{background:#eef1f8;color:var(--ink)}.media-viewer-body{position:relative;width:100%;aspect-ratio:16 / 9;max-height:calc(90vh - 50px);background:#000}.media-viewer-block-corner{position:absolute;top:0;right:0;width:72px;height:72px;cursor:not-allowed;z-index:2}.media-viewer:fullscreen{max-width:100vw;width:100vw;height:100vh;max-height:100vh;border-radius:0}.media-viewer:fullscreen .media-viewer-body{aspect-ratio:auto;max-height:none;flex:1;min-height:0}.media-viewer-frame{width:100%;height:100%;border:0;display:block}.chat-fab{position:fixed;right:22px;bottom:22px;z-index:70;display:flex;align-items:center;gap:8px;font:inherit;font-weight:700;background:var(--red);color:#fff;border:none;border-radius:999px;padding:13px 20px;cursor:pointer;box-shadow:var(--shadow-lg)}.chat-fab:hover{filter:brightness(1.05)}.site-footer{background:#0f1830;color:#c4cbdb;padding:44px 0 22px;margin-top:20px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}.logo-light{color:#fff}.footer-tag{margin-top:10px;font-size:14px;max-width:240px}.footer-col h4{color:#fff;font-size:15px;margin-bottom:12px}.footer-col a{display:block;font-size:14px;padding:5px 0;color:#c4cbdb}.footer-col a:hover{color:var(--accent)}.footer-bottom{margin-top:32px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#8b95ab}@media (max-width: 920px){.layout{grid-template-columns:1fr}.sidebar{position:static}}@media (max-width: 640px){.intro h1{font-size:22px}.footer-grid{grid-template-columns:1fr 1fr}.header-inner{height:auto;gap:10px;row-gap:10px;padding:10px 16px}.logo{order:1}.login,.header-user-wrap{order:2}.login{padding:9px 14px}.mobile-menu-toggle{order:3}.search{order:4;flex:1 1 100%;min-width:0;height:44px}}@media (max-width: 420px){.login span{display:none}.login{padding:10px}.logo-text{font-size:21px}.chat-fab span{display:none}.chat-fab{padding:12px;right:14px;bottom:14px}}@media (max-width: 480px){.wrap{padding:0 16px}.header-inner{padding:10px 16px}.layout{gap:16px;padding-top:16px;padding-bottom:32px}.intro{padding:20px 0 24px}.intro h1{font-size:19px}.intro p{font-size:14px}.sidebar{padding:16px}.cat-head h2{font-size:18px}}.card .thumb-badge{background:#ffc107}.view-tabs button span{font-weight:400}@media (max-width: 768px){.mcq-questions-container{max-height:400px}.mcq-option-label{font-size:13px}.mcq-actions{flex-direction:column;align-items:stretch}.mcq-actions button{width:100%}.score-display{text-align:center}.progress-indicator{text-align:center;margin-left:0}}.nav-card{position:relative;overflow:hidden;width:100%}.nav-card-content{display:flex;flex-direction:column}.nav-card-header{position:relative;transition:all .3s ease}.nav-card-header:after{content:"";position:absolute;bottom:0;left:0;right:0;height:40px;background:linear-gradient(to bottom,transparent,rgba(0,0,0,.1));pointer-events:none}.nav-card-badge{position:relative;z-index:1}.video-tag{display:inline-flex;align-items:center;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;padding:4px 12px;background:#fff3;border-radius:20px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.1)}.nav-card-title{position:relative;z-index:1;font-size:18px;font-weight:600;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.2);line-height:1.3;margin:12px 0 0}.nav-card-footer{padding:12px 20px;display:flex;justify-content:space-between;align-items:center;background:#fafafa;border-top:1px solid #f0f0f0}.nav-card-footer .view-all{color:#4a90e2;font-weight:500;font-size:13px;display:inline-flex;align-items:center;gap:4px;transition:gap .2s}.nav-card:hover .view-all{gap:8px}.card-row{margin-top:20px}.mock-test-card .mock-test-details{margin:10px 0}.mock-stats{display:flex;gap:15px;flex-wrap:wrap;font-size:13px;color:#666}.mock-stats span{display:flex;align-items:center;gap:4px}.mcq-questions-container{margin-top:15px;padding:15px;background:#f8f9fa;border-radius:8px;border:1px solid #e0e0e0;max-height:600px;overflow-y:auto}.mcq-questions-container::-webkit-scrollbar{width:6px}.mcq-questions-container::-webkit-scrollbar-track{background:#f1f1f1;border-radius:3px}.mcq-questions-container::-webkit-scrollbar-thumb{background:#888;border-radius:3px}.mcq-question-item{background:#fff;padding:15px;margin-bottom:15px;border-radius:6px;border-left:3px solid #4a90e2}.mcq-question-text{font-size:14px;margin-bottom:10px;color:#333}.question-marks{font-size:12px;color:#888;font-weight:400}.mcq-options-list{display:flex;flex-direction:column;gap:8px}.mcq-option-label{display:flex;align-items:center;gap:8px;padding:6px 10px;border-radius:4px;cursor:pointer;transition:background .2s;font-size:14px}.mcq-option-label:hover{background:#f0f4ff}.mcq-option-label input[type=radio]{cursor:pointer;width:16px;height:16px}.option-text{flex:1}.correct-indicator{color:#28a745;font-weight:700}.wrong-indicator{color:#dc3545;font-weight:700}.answer-feedback{margin-top:8px;padding:6px 10px;border-radius:4px;font-size:13px}.correct-feedback{color:#28a745;background:#d4edda;padding:4px 10px;border-radius:4px;display:inline-block}.wrong-feedback{color:#dc3545;background:#f8d7da;padding:4px 10px;border-radius:4px;display:inline-block}.mcq-actions{display:flex;align-items:center;gap:15px;flex-wrap:wrap;margin-top:15px;padding-top:15px;border-top:1px solid #e0e0e0}.submit-mcq-btn{background:#28a745;color:#fff;border:none;padding:8px 20px;border-radius:4px;cursor:pointer;font-size:14px;transition:background .2s}.submit-mcq-btn:hover:not(:disabled){background:#218838}.submit-mcq-btn:disabled{background:#6c757d;cursor:not-allowed;opacity:.6}.reset-mcq-btn{background:#007bff;color:#fff;border:none;padding:8px 20px;border-radius:4px;cursor:pointer;font-size:14px;transition:background .2s}.reset-mcq-btn:hover{background:#0056b3}.score-display{font-size:16px;font-weight:600;color:#28a745}.progress-indicator{font-size:14px;color:#666;margin-left:auto}@media (max-width: 768px){.card-row{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:15px}.nav-card-title{font-size:16px}.nav-card-header{padding:16px 16px 12px!important;min-height:60px!important}.mcq-questions-container{max-height:400px}.mcq-option-label{font-size:13px}.mcq-actions{flex-direction:column;align-items:stretch}.mcq-actions button{width:100%}.score-display{text-align:center}.progress-indicator{text-align:center;margin-left:0}}.breadcrumb{font-size:13px;margin-bottom:14px}.breadcrumb a{color:var(--muted)}.breadcrumb a:hover{color:var(--brand);text-decoration:underline}.breadcrumb span{color:var(--muted);margin:0 4px}.breadcrumb span:last-child{color:var(--ink);font-weight:600;margin:0}.page-title{font-size:24px;font-weight:800;margin-bottom:6px}.muted{color:var(--muted)}.exam-hero{background-size:cover;background-position:center;border-bottom:1px solid var(--line);color:#fff}.exam-hero-inner{padding:30px 24px 34px}.exam-hero-inner.thumb-blue{background:linear-gradient(135deg,#1a3c8c,#2d6fd6)}.exam-hero-inner.thumb-green{background:linear-gradient(135deg,#0f5132,#1f9d55)}.exam-hero-inner.thumb-navy{background:linear-gradient(135deg,#0b1f4d,#1f3a8a)}.exam-hero-inner.thumb-olive{background:linear-gradient(135deg,#4d4413,#8a7c1f)}.exam-hero-inner.thumb-purple{background:linear-gradient(135deg,#3b1f6b,#7c3aed)}.exam-hero-inner.thumb-teal{background:linear-gradient(135deg,#0c4a4a,#14b8a6)}.exam-hero-inner.thumb-orange{background:linear-gradient(135deg,#9a4d0c,#f59e0b)}.exam-hero-inner.thumb-red{background:linear-gradient(135deg,#7a1212,#e23b3b)}.exam-hero .breadcrumb a{color:#ffffffbf}.exam-hero .breadcrumb span{color:#ffffff8c}.exam-hero .breadcrumb span:last-child{color:#fff}.exam-hero .tag-type{background:#ffffff2e;color:#fff}.exam-hero h1{font-size:30px;font-weight:800;margin:10px 0}.exam-hero p{max-width:760px;color:#ffffffe6;font-size:15px}@media (max-width: 640px){.exam-hero-inner{padding:22px 16px 26px}.exam-hero h1{font-size:22px;margin:8px 0}.exam-hero p{font-size:13.5px}}.exam-layout{display:grid;grid-template-columns:1fr 300px;gap:28px;padding-top:28px;padding-bottom:48px;align-items:start}.exam-tabs{display:flex;gap:6px;flex-wrap:wrap;border-bottom:1px solid var(--line);margin-bottom:22px}.exam-tab{font:inherit;font-weight:700;font-size:14px;background:none;border:none;padding:12px 16px;cursor:pointer;color:var(--muted);border-bottom:3px solid transparent;margin-bottom:-1px;flex-shrink:0}.exam-tab:hover{color:var(--ink)}@media (max-width: 700px){.exam-tabs{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.exam-tabs::-webkit-scrollbar{display:none}.exam-tab{padding:12px 14px;font-size:13.5px}}.exam-tab.active{color:var(--brand);border-bottom-color:var(--brand)}.tab-panel h2{font-size:20px;font-weight:800;margin-bottom:12px}.tab-panel h3{font-size:16px;font-weight:800;margin:22px 0 10px}.tab-panel h3:first-child{margin-top:0}.tab-panel p{color:var(--muted);font-size:14.5px}.check-list{list-style:none;display:grid;gap:10px}.check-list li{display:flex;align-items:flex-start;gap:8px;font-size:14.5px;color:var(--ink)}.check-list li svg{color:var(--green);flex-shrink:0;margin-top:2px}.step-list{padding-left:20px;display:grid;gap:6px;color:var(--ink);font-size:14.5px}.kv-list{list-style:none;display:grid;gap:8px;font-size:14.5px;color:var(--ink)}.kv-list strong{color:var(--ink);margin-right:6px}.syllabus-block{margin-bottom:20px}.syllabus-block h3{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.subject-link{font-size:13px;font-weight:700;color:var(--brand)}.subject-link:hover{text-decoration:underline}.chip-row{display:flex;flex-wrap:wrap;gap:8px}.chip{font-size:12.5px;font-weight:600;color:var(--ink);background:var(--bg-alt);border:1px solid var(--line);border-radius:999px;padding:6px 12px}.table-scroll{overflow-x:auto}.pattern-block{margin-bottom:24px}.pattern-table{width:100%;border-collapse:collapse;font-size:14px;min-width:480px}.pattern-table th,.pattern-table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}.pattern-table th{color:var(--muted);font-weight:700;font-size:12.5px;text-transform:uppercase;letter-spacing:.4px}.dates-list{list-style:none;display:grid;gap:10px}.dates-list li{display:flex;justify-content:space-between;gap:12px;font-size:14.5px;padding:12px 16px;background:#fff;border:1px solid var(--line);border-radius:10px}.dates-list li strong{color:var(--brand)}.faculty-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}.faculty-grid-full{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}.faculty-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;text-align:center}.faculty-card-compact{text-align:center}.faculty-grid-full .faculty-card{text-align:left}.faculty-avatar{width:56px;height:56px;border-radius:50%;margin:0 auto 10px;background:linear-gradient(135deg,var(--brand),#2d6fd6);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px}.faculty-grid-full .faculty-avatar{margin:0 0 10px}.faculty-card h4{font-size:14.5px;font-weight:800;margin-bottom:2px}.faculty-designation{font-size:12.5px;color:var(--muted);margin-bottom:6px}.faculty-meta{font-size:12.5px;color:var(--muted)}.faculty-bio{font-size:13px;color:var(--ink);margin:10px 0}.faculty-rating{display:inline-flex;align-items:center;gap:4px;font-size:12.5px;font-weight:700;color:var(--accent-dark);margin-top:6px}.faculty-grid-full .chip-row{margin:8px 0}.enroll-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:sticky;top:90px;display:flex;flex-direction:column;gap:12px}.enroll-price{font-size:26px;font-weight:800}.enroll-includes{list-style:none;display:grid;gap:8px;margin-top:4px}.enroll-includes li{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--muted)}.enroll-includes li svg{color:var(--green);flex-shrink:0;margin-top:2px}.enroll-owned-tag{text-align:center;padding:10px}.enroll-go-to-course{display:block;text-align:center;text-decoration:none}@media (max-width: 920px){.exam-layout{grid-template-columns:1fr}.enroll-card{position:static}}.card-actions{display:flex;gap:8px;margin-top:4px}.card-actions .btn-outline,.card-actions .add-btn{flex:1;margin-top:0}.btn-outline{font:inherit;font-weight:700;font-size:14px;background:#fff;color:var(--brand);border:1px solid var(--line);border-radius:8px;padding:10px;cursor:pointer;transition:border-color .15s ease,background .15s ease}.btn-outline:hover{border-color:var(--brand);background:#f5f7fb}.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}.hero-stat{background:#ffffff1f;border:1px solid rgba(255,255,255,.25);border-radius:10px;padding:10px 16px;min-width:110px}.hero-stat-value{display:block;font-size:17px;font-weight:800;color:#fff}.hero-stat-label{display:block;font-size:11.5px;color:#ffffffbf;margin-top:2px}@media (max-width: 640px){.hero-stats{gap:8px;margin-top:14px}.hero-stat{min-width:calc(50% - 4px);padding:8px 12px}.hero-stat-value{font-size:15px}}.fine-print{font-size:12.5px;color:var(--muted);margin-top:14px}.schedule-block{margin-bottom:32px}.schedule-block h3{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.schedule-table{width:100%;border-collapse:collapse;font-size:14px;min-width:380px}.schedule-table th,.schedule-table td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line)}.schedule-table th{color:var(--muted);font-weight:700;font-size:12.5px;text-transform:uppercase;letter-spacing:.4px}.schedule-table td:first-child{white-space:nowrap;color:var(--muted);font-weight:600}@media (max-width: 480px){.card-row{grid-template-columns:1fr}}.user-menu{position:absolute;top:100%;right:0;margin-top:4px;z-index:50;background:#fff;border-radius:10px;box-shadow:var(--shadow-lg);min-width:190px;padding:8px;display:flex;flex-direction:column;gap:2px}.user-menu-item{display:flex;align-items:center;gap:8px;width:100%;padding:9px 12px;border:none;background:none;text-align:left;cursor:pointer;border-radius:6px;color:var(--ink);font:inherit;font-size:14px}.user-menu-item:hover{background:#f2f4f9}.user-menu-item-danger{color:#dc3545}.panel-layout{display:grid;grid-template-columns:260px 1fr;gap:28px;padding-top:28px;padding-bottom:48px;align-items:start}.panel-sidebar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:sticky;top:90px;height:calc(100vh - 110px);display:flex;flex-direction:column;gap:18px}.panel-user{display:flex;align-items:center;gap:12px}.panel-avatar{width:46px;height:46px;border-radius:50%;flex-shrink:0;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px}.panel-user-name{font-weight:700;font-size:14.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.panel-user-email{font-size:12.5px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.panel-nav{display:flex;flex-direction:column;gap:2px;border-top:1px solid var(--line);padding-top:14px;flex:1;overflow-y:auto;min-height:0}.panel-nav-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border:none;background:none;text-align:left;cursor:pointer;border-radius:8px;color:var(--muted);font:inherit;font-size:14px;font-weight:600}.panel-nav-item:hover{background:#f2f4f9;color:var(--ink)}.panel-nav-item.active{background:#1a3c8c1a;color:var(--brand)}.panel-nav-count{margin-left:auto;font-size:11px;font-weight:700;color:var(--muted);background:var(--bg-alt);border-radius:999px;padding:2px 8px;min-width:20px;text-align:center}.panel-nav-item.active .panel-nav-count{background:#fff;color:var(--brand)}.panel-logout-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:11px;border:1px solid #f8c9c9;background:#fdecec;color:#c0392b;border-radius:8px;font:inherit;font-weight:700;font-size:14px;cursor:pointer}.panel-logout-btn:hover{background:#fbdada}.panel-content{min-width:0}.panel-welcome-sub{color:var(--muted);font-size:14px;margin:14px 0 22px}.student-banner{border-radius:18px;overflow:hidden;box-shadow:var(--shadow-lg);margin-bottom:6px;background:linear-gradient(135deg,var(--brand),var(--brand-dark) 60%,#0d1b45)}.student-banner-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:30px 32px;color:#fff}.student-banner-text{max-width:520px}.student-banner-eyebrow{font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;opacity:.8}.student-banner-title{font-size:28px;font-weight:800;margin:4px 0 8px}.student-banner-message{font-size:14.5px;opacity:.92;line-height:1.5}.student-banner-cta{margin-top:16px;max-width:200px}.student-banner-progress{display:flex;flex-direction:column;align-items:center;gap:8px;flex-shrink:0}.student-banner-ring{position:relative;width:84px;height:84px}.student-banner-ring svg{width:100%;height:100%;transform:rotate(-90deg)}.student-banner-ring .ring-bg{fill:none;stroke:#ffffff40;stroke-width:3}.student-banner-ring .ring-fill{fill:none;stroke:var(--accent);stroke-width:3;stroke-linecap:round;transition:stroke-dasharray .3s ease}.student-banner-ring-pct{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:800;color:#fff}.student-banner-progress-label{font-size:12px;font-weight:600;opacity:.9;white-space:nowrap}@media (max-width: 640px){.student-banner-inner{padding:24px 20px}.student-banner-title{font-size:22px}}.panel-empty{color:var(--muted);padding:20px 0}.panel-exam-block{margin-bottom:32px}.panel-exam-heading{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:800;margin-bottom:12px;color:var(--ink)}.panel-exam-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.panel-overview-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:18px}.panel-overview-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .15s}.panel-overview-card:hover{box-shadow:var(--shadow-lg)}.panel-overview-cover{aspect-ratio:16 / 9;overflow:hidden}.panel-overview-cover img{width:100%;height:100%;object-fit:cover;display:block}.panel-overview-card-body{padding:16px;display:flex;flex-direction:column;gap:10px;flex:1}.panel-overview-card-body h3{font-size:16px;font-weight:800}.panel-overview-counts{display:flex;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--muted)}.panel-overview-counts span{display:inline-flex;align-items:center;gap:4px;background:var(--bg-alt);border-radius:999px;padding:4px 10px}.panel-overview-card-body .add-btn{margin-top:auto;display:inline-flex;align-items:center;justify-content:center;gap:6px}.coming-soon-card{border:2px dashed var(--line);border-radius:var(--radius);background:#fbfcfe;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:32px 16px;min-height:180px;color:var(--muted);text-align:center}.coming-soon-card h4{color:var(--ink);font-size:15px;font-weight:700}.coming-soon-card p{font-size:13px}.panel-empty-state{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:56px 24px;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:var(--radius)}.panel-empty-icon{width:60px;height:60px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#1a3c8c14;color:var(--brand);margin-bottom:4px}.panel-empty-state h3{color:var(--ink);font-size:17px;font-weight:800}.panel-empty-state p{max-width:380px;font-size:14px}.panel-empty-state .add-btn{margin-top:6px}.panel-login-gate{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:80px 24px;color:var(--muted)}.panel-login-icon{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#1a3c8c14;color:var(--brand);margin-bottom:6px}.panel-login-gate h2{color:var(--ink);font-size:20px;margin-top:6px}@media (max-width: 920px){.panel-layout{grid-template-columns:1fr}.panel-sidebar{position:static;height:auto;flex-direction:row;align-items:center;flex-wrap:wrap;gap:14px;min-width:0}.panel-user{flex:1;min-width:180px}.panel-nav{flex-direction:row;overflow-x:auto;overflow-y:visible;border-top:none;padding-top:0;-webkit-overflow-scrolling:touch;scrollbar-width:none;flex:1 1 100%;min-width:0;order:3;gap:6px}.panel-nav::-webkit-scrollbar{display:none}.panel-nav-item{flex-shrink:0;white-space:nowrap}.panel-logout-btn{width:auto;padding:10px 16px}}.progress-bar-track{height:8px;border-radius:999px;background:var(--bg-alt);overflow:hidden}.progress-bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent));transition:width .25s ease}.panel-overview-progress{display:grid;gap:5px}.panel-overview-progress-label{display:flex;justify-content:space-between;font-size:11.5px;font-weight:700;color:var(--muted)}.progress-check{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;border:1.5px solid var(--line);background:#fff;color:transparent;cursor:pointer;transition:background .15s,border-color .15s,color .15s}.progress-check:hover{border-color:var(--brand)}.progress-check.done{background:var(--green);border-color:var(--green);color:#fff}.progress-slot{position:relative}.progress-slot>.progress-check{position:absolute;top:10px;right:10px;z-index:5;background:#ffffffeb}.progress-slot>.progress-check.done{background:var(--green)}.subject-filter-bar{display:flex;flex-wrap:wrap;gap:8px}.subject-filter-btn{display:inline-flex;align-items:center;gap:6px;font:inherit;font-weight:600;font-size:13px;background:#fff;color:var(--muted);border:1.5px solid var(--line);border-radius:999px;padding:7px 15px;cursor:pointer;transition:background .15s,color .15s,border-color .15s}.subject-filter-btn:hover{border-color:#c7d0e6;color:var(--ink)}.subject-filter-btn.active{background:#1a3c8c14;border-color:var(--brand);color:var(--brand-dark)}.class-type-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:16px}.view-mode-toggle{display:inline-flex;gap:2px;background:var(--bg-alt);border-radius:10px;padding:3px}.view-mode-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:none;border-radius:7px;background:none;color:var(--muted);cursor:pointer}.view-mode-btn:hover{color:var(--ink)}.view-mode-btn.active{background:#fff;color:var(--brand);box-shadow:var(--shadow)}.course-list-view{display:grid;gap:10px;margin-bottom:8px}.course-row{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px}.course-row.done{background:#f7fbf8}.course-row-icon{flex-shrink:0;width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;color:#fff}.course-row-info{flex:1;min-width:0}.course-row-title{font-weight:700;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.course-row.done .course-row-title{color:var(--muted);text-decoration:line-through}.course-row-meta{font-size:12px;color:var(--muted);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.course-row-lang{flex-shrink:0}.course-row-action{flex-shrink:0;white-space:nowrap;font:inherit;font-weight:700;font-size:13px;background:var(--accent);color:#1b2233;border:none;border-radius:999px;padding:9px 18px;cursor:pointer;transition:background .15s ease}.course-row-action:hover:not(:disabled){background:var(--accent-dark)}.course-row-action:disabled{background:var(--bg-alt);color:var(--muted);cursor:default}@media (max-width: 560px){.course-row{flex-wrap:wrap}.course-row-action{margin-left:42px}}.course-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden}.course-table th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted);font-weight:700;padding:10px 14px;border-bottom:1px solid var(--line)}.course-table td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:middle;font-size:13.5px}.course-table tr:last-child td{border-bottom:none}.course-table-name{font-weight:700}.course-table td.muted{max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.course-table tr.row-done .course-table-name{color:var(--muted);text-decoration:line-through}.course-table tr.row-done{background:#f7fbf8}.notice-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a14328c;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.notice-modal{background:#fff;border-radius:18px;padding:32px 30px;max-width:360px;width:100%;text-align:center;box-shadow:0 20px 60px #0a14324d}.notice-modal-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:50%;background:#1a3c8c1a;color:var(--brand);display:flex;align-items:center;justify-content:center}.notice-modal h3{font-size:18px;font-weight:800;margin-bottom:8px}.notice-modal p{color:var(--muted);font-size:14px;margin-bottom:22px}.faq-section{padding:8px 24px 32px}.faq-section .cat-head{justify-content:center;text-align:center}.faq-list{display:grid;gap:10px;max-width:780px;margin:0 auto}.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.faq-item.open{border-color:#c7d0e6;box-shadow:var(--shadow)}.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;font:inherit;font-weight:700;font-size:15px;color:var(--ink);background:none;border:none;text-align:left;padding:16px 18px;cursor:pointer}.faq-question svg{flex-shrink:0;color:var(--muted)}.faq-answer{padding:0 18px 18px;color:var(--muted);font-size:14.5px}.contact-section{padding:8px 24px 32px}.contact-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:start}.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:grid;gap:16px}.contact-field{display:grid;gap:6px;font-size:13.5px;font-weight:700;color:var(--ink)}.contact-field input,.contact-field textarea{font:inherit;font-size:14.5px;font-weight:400;color:var(--ink);border:1.5px solid var(--line);border-radius:10px;padding:10px 12px;resize:vertical}.contact-field input:focus,.contact-field textarea:focus{outline:none;border-color:var(--brand)}.contact-form .add-btn{justify-self:start;display:inline-flex;align-items:center;gap:8px}.contact-form-note{font-size:12.5px;color:var(--muted);margin-top:-8px}.contact-community-heading{font-size:16px;font-weight:800;margin-bottom:14px}.community-grid{display:grid;gap:10px}.community-card{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;color:inherit;transition:border-color .15s,box-shadow .15s}.community-card:hover{border-color:#c7d0e6;box-shadow:var(--shadow)}.community-card-icon{flex-shrink:0;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--bg-alt);color:var(--brand)}.community-card-text{flex:1;display:grid;gap:2px}.community-card-label{font-weight:700;font-size:14.5px}.community-card-desc{font-size:12.5px;color:var(--muted)}.community-card>svg:last-child{color:var(--muted);flex-shrink:0}@media (max-width: 820px){.contact-layout{grid-template-columns:1fr}}.video-section{padding:8px 24px 40px}.video-section-head{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:18px}.video-section-heading{display:flex;align-items:center;gap:14px}.video-section-heading h2{font-size:21px;font-weight:800;margin-bottom:3px}.video-section-heading p{color:var(--muted);font-size:13.5px;max-width:480px}.video-section-icon{flex-shrink:0;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#e0302a1a;color:#e0302a}.youtube-subscribe-btn{display:inline-flex;align-items:center;gap:8px;flex-shrink:0;background:#e0302a;color:#fff;font-weight:700;font-size:14px;border-radius:999px;padding:11px 20px;transition:background .15s,transform .15s}.youtube-subscribe-btn:hover{background:#c22821;transform:translateY(-1px)}.video-carousel{background:#10151f;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-lg)}.video-carousel-frame{position:relative;width:100%;aspect-ratio:16 / 9;background:#0b1220}.video-carousel-frame-mount,.video-carousel-frame iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0}.video-carousel-skeleton{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#10151f,#1a2233);pointer-events:none}.video-carousel-skeleton-pulse{width:64px;height:64px;border-radius:50%;background:#ffffff14;animation:video-pulse 1.4s ease-in-out infinite}@keyframes video-pulse{0%,to{transform:scale(.85);opacity:.5}50%{transform:scale(1.05);opacity:1}}.video-carousel-controls{display:flex;align-items:center;justify-content:center;gap:14px;padding:14px 18px}.video-carousel-title{flex:1;text-align:center;font-size:13.5px;font-weight:600;color:#ffffffbf;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.video-carousel-nav-btn{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;border:1.5px solid rgba(255,255,255,.18);background:#ffffff0f;color:#fff;cursor:pointer;transition:background .15s,border-color .15s}.video-carousel-nav-btn:hover:not(:disabled){background:#ffffff24;border-color:#ffffff4d}.video-carousel-nav-btn:disabled{opacity:.35;cursor:default}.video-thumb-rail{display:flex;gap:10px;overflow-x:auto;padding:4px 16px 18px;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;scrollbar-width:none}.video-thumb-rail::-webkit-scrollbar{display:none}.video-thumb{position:relative;flex-shrink:0;width:140px;aspect-ratio:16 / 9;border-radius:10px;overflow:hidden;border:2px solid transparent;background:#000;cursor:pointer;padding:0;scroll-snap-align:start;transition:border-color .15s,opacity .15s;opacity:.7}.video-thumb:hover{opacity:1}.video-thumb.active{border-color:#e0302a;opacity:1}.video-thumb img{width:100%;height:100%;object-fit:cover;display:block}.video-thumb-play{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;color:#fff;background:#0a0f1940;opacity:0;transition:opacity .15s}.video-thumb:hover .video-thumb-play{opacity:1}.video-thumb.active .video-thumb-play{opacity:1;background:#e0302a59}@media (max-width: 640px){.video-section{padding:8px 16px 32px}.video-section-head{flex-direction:column;align-items:stretch}.youtube-subscribe-btn{justify-content:center}.video-carousel-title{display:none}.video-thumb{width:112px}}.notice-modal-actions{display:flex;flex-direction:column;gap:10px}.quiz-page-head{display:flex;align-items:flex-start;gap:16px;margin:18px 0 26px}.quiz-page-icon{flex-shrink:0;width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#1a3c8c14;color:var(--brand)}.quiz-page-head .page-title{margin-bottom:6px}.quiz-page-head p{max-width:620px}.quiz-set-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px;margin-bottom:36px}.quiz-set-card{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;transition:box-shadow .15s}.quiz-set-card:hover{box-shadow:var(--shadow-lg)}.quiz-set-card-icon{flex-shrink:0;width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--bg-alt);color:var(--brand)}.quiz-set-card-body{flex:1;min-width:0}.quiz-set-card-body h3{font-size:15.5px;font-weight:800;margin-bottom:2px}.mock-test-exam-name{margin:0;font-size:13px}.quiz-set-meta{display:inline-block;margin-top:6px;font-size:12px;font-weight:700;color:var(--muted);background:var(--bg-alt);border-radius:999px;padding:3px 10px}.quiz-set-start-btn{flex-shrink:0;max-width:130px;padding:10px 16px;font-size:13.5px}.quiz-set-attempt-summary{display:flex;align-items:center;gap:5px;margin-top:6px;font-size:12px;font-weight:700;color:var(--green)}.quiz-page-subjects{border-top:1px solid var(--line);padding-top:24px}.quiz-page-subjects h3{font-size:15px;font-weight:800;margin-bottom:12px}.quiz-subject-links{display:flex;flex-wrap:wrap;gap:10px}.quiz-runner{max-width:760px}.quiz-back-btn{display:inline-flex;align-items:center;gap:6px;font:inherit;font-weight:700;font-size:13.5px;color:var(--brand);background:none;border:none;cursor:pointer;padding:0;margin-bottom:16px}.quiz-back-btn:hover{text-decoration:underline}.quiz-runner-head{margin-bottom:18px}.quiz-runner-head h2{font-size:20px;font-weight:800;margin-bottom:4px}.quiz-runner-head-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.quiz-runner-head-row h2{margin-bottom:0}.quiz-timer{display:inline-flex;align-items:center;gap:6px;flex-shrink:0;font-size:14px;font-weight:700;color:var(--brand);background:#1a3c8c14;border-radius:999px;padding:6px 14px;font-variant-numeric:tabular-nums}.quiz-instructions-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin-bottom:18px}.quiz-instructions-panel h3{font-size:16px;font-weight:800;margin-bottom:14px}.quiz-instructions-list{display:grid;gap:12px;padding-left:20px;font-size:13.5px;line-height:1.6;color:var(--ink)}.quiz-instructions-legend{display:grid;gap:7px;margin-top:10px;padding-left:4px;list-style:none}.quiz-instructions-legend li{display:flex;align-items:center;gap:8px;font-size:13px}.quiz-instructions-agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.5;color:var(--ink);background:var(--bg-alt);border-radius:10px;padding:14px 16px;margin-bottom:18px;cursor:pointer}.quiz-instructions-agree input{margin-top:3px;accent-color:var(--brand);width:16px;height:16px;flex-shrink:0}.quiz-instructions-actions{display:flex;justify-content:flex-end;gap:12px}.quiz-instructions-actions .add-btn{padding:11px 22px}.quiz-instructions-actions .add-btn:disabled{opacity:.5;cursor:not-allowed}.quiz-score-banner{display:flex;align-items:center;gap:18px;background:#1f9d5514;border:1px solid rgba(31,157,85,.25);border-radius:var(--radius);padding:18px 20px;margin-bottom:22px}.quiz-score-value{font-size:30px;font-weight:800;color:var(--green);flex-shrink:0}.quiz-score-text{flex:1}.quiz-score-label{display:flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}.quiz-attempt-badge{display:inline-flex;align-items:center;text-transform:none;letter-spacing:normal;background:#1a3c8c14;color:var(--brand);border-radius:999px;padding:2px 9px;font-size:11.5px}.quiz-score-pct{font-size:15px;font-weight:700;color:var(--ink)}.quiz-score-timing{font-size:12.5px;color:var(--muted);margin-top:2px}.quiz-score-actions{flex-shrink:0;display:flex;flex-direction:column;gap:8px}.quiz-retake-btn{padding:10px 18px;font-size:13.5px;white-space:nowrap}.quiz-leaderboard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:22px}.quiz-leaderboard-title{display:flex;align-items:center;gap:7px;font-size:15.5px;font-weight:800;margin-bottom:12px}.quiz-leaderboard-title svg{color:var(--brand)}.quiz-leaderboard-retry{background:none;border:none;padding:0;color:var(--brand);font-weight:700;cursor:pointer;text-decoration:underline;font:inherit}.quiz-leaderboard-you{display:flex;align-items:baseline;gap:4px;flex-wrap:wrap;background:#1a3c8c0f;border-radius:8px;padding:10px 14px;margin-bottom:14px;font-size:13.5px}.quiz-leaderboard-you-rank{font-weight:800;color:var(--brand);font-size:15px}.quiz-leaderboard-history{margin-bottom:18px}.quiz-leaderboard-history-label{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:8px}.quiz-leaderboard-table-wrap{overflow-x:auto}.quiz-leaderboard-table{width:100%;border-collapse:collapse;font-size:13px}.quiz-leaderboard-table th{text-align:left;font-size:11.5px;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.3px;padding:8px 10px;border-bottom:1.5px solid var(--line);white-space:nowrap}.quiz-leaderboard-table td{padding:9px 10px;border-bottom:1px solid var(--line);white-space:nowrap}.quiz-leaderboard-table tbody tr:last-child td{border-bottom:none}.quiz-leaderboard-row-you td{background:#1a3c8c0f;font-weight:700;color:var(--brand)}.quiz-leaderboard-row-you td:first-child{border-radius:8px 0 0 8px}.quiz-leaderboard-row-you td:last-child{border-radius:0 8px 8px 0}.quiz-questions{display:grid;gap:16px;margin-bottom:22px}.quiz-question-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}.quiz-question-text{font-size:15px;font-weight:600;margin-bottom:14px;line-height:1.5}.quiz-question-marks{margin-left:8px;font-size:12.5px;font-weight:800}.quiz-question-marks.positive{color:var(--green)}.quiz-question-marks.negative{color:var(--red)}.quiz-options{display:grid;gap:9px}.quiz-explanation{margin-top:12px;padding:10px 14px;background:var(--bg-alt);border-radius:8px;font-size:13.5px;line-height:1.5;color:var(--ink)}.quiz-time-taken{display:flex;align-items:center;gap:5px;margin-top:8px;font-size:12px;color:var(--muted)}.quiz-one-attempt-note{text-align:center;margin-top:10px;font-size:12.5px;color:var(--muted)}.quiz-option{display:flex;align-items:center;gap:10px;padding:11px 14px;border:1.5px solid var(--line);border-radius:10px;cursor:pointer;font-size:14px;transition:border-color .15s,background .15s}.quiz-exam{max-width:none;width:100%}.mocktest-section-subject{display:flex;align-items:center;gap:5px;margin:2px 0 0;font-size:12.5px;font-weight:700;color:var(--brand)}.quiz-review-section{margin-bottom:18px}.quiz-review-section-heading{font-size:14px;font-weight:800;color:var(--brand);margin:22px 0 12px;padding-bottom:6px;border-bottom:1px solid var(--line)}.quiz-review-section:first-child .quiz-review-section-heading{margin-top:0}.mocktest-sectional-notice h3{margin-bottom:6px}.quiz-exam-topbar{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line)}.quiz-exam-title h2{font-size:19px;font-weight:800;margin-bottom:2px}.quiz-exam-title p{margin:0}.quiz-exam-topbar .quiz-timer{font-size:15px}.quiz-exam-body{display:grid;grid-template-columns:1fr 260px;gap:22px;align-items:start;margin-bottom:18px}.quiz-exam-main-col{display:flex;flex-direction:column;gap:18px;min-width:0}.quiz-exam-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;min-width:0}.quiz-exam-qmeta{font-size:13px;font-weight:700;color:var(--muted);margin-bottom:12px}.quiz-exam-sidebar{background:#eaf3fb;border:1px solid rgba(26,60,140,.08);border-radius:var(--radius);padding:16px;display:flex;flex-direction:column;gap:14px;position:sticky;top:18px}.quiz-exam-legend{display:flex;flex-wrap:wrap;gap:10px 18px;font-size:12px;color:var(--ink)}.quiz-exam-legend-item{display:flex;align-items:center;gap:6px;font-weight:600;white-space:nowrap}.quiz-legend-dot{width:20px;height:20px;border-radius:50%;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;font-size:10.5px;font-weight:800;color:#fff}.dot-answered{background:var(--green)}.dot-marked{background:#8b5cf6}.dot-marked-answered{background:#8b5cf6;box-shadow:inset 0 0 0 2px #22c55e}.dot-not-answered{background:var(--red)}.dot-not-visited{background:#fff;border:1.5px solid var(--line);color:var(--ink)}.quiz-exam-palette{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;max-height:260px;overflow-y:auto;padding-right:2px;margin-right:-2px}.quiz-palette-btn{aspect-ratio:1;border-radius:6px;border:1.5px solid #c3d0e0;background:#fff;font-size:13px;font-weight:700;color:var(--ink);cursor:pointer;transition:transform .1s}.quiz-palette-btn:hover{transform:translateY(-1px)}.quiz-palette-btn.current{border-color:var(--brand);border-width:2px;box-shadow:0 0 0 1px var(--brand) inset}.quiz-palette-btn.palette-answered{background:var(--green);border-color:var(--green);color:#fff}.quiz-palette-btn.palette-marked{background:#8b5cf6;border-color:#8b5cf6;color:#fff}.quiz-palette-btn.palette-marked-answered{background:#8b5cf6;border-color:#22c55e;color:#fff;box-shadow:inset 0 0 0 2px #22c55e}.quiz-palette-btn.palette-not-answered{background:var(--red);border-color:var(--red);color:#fff}.quiz-palette-btn.palette-not-visited{background:#fff;color:var(--ink)}.quiz-exam-submit-btn{width:100%}.quiz-exam-sidebar>.btn-outline{background:#d7e8fb;border:none;color:var(--brand);font-weight:700;padding:10px 14px;border-radius:8px}.quiz-exam-sidebar>.btn-outline:hover{background:#c5def9}.quiz-exam-sidebar>.add-btn,.quiz-exam-submit-btn{background:#0f8fa3;color:#fff}.quiz-exam-sidebar>.add-btn:hover,.quiz-exam-submit-btn:hover{background:#0c7688}.quiz-exam-actionbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px}.quiz-exam-actionbar-left{display:flex;gap:10px;flex-wrap:wrap}.quiz-exam-actionbar .btn-outline{padding:10px 16px;font-size:13.5px;background:#d7e8fb;border:none;color:var(--brand);font-weight:700}.quiz-exam-actionbar .btn-outline:hover{background:#c5def9}.quiz-exam-actionbar .add-btn{background:#0f8fa3;color:#fff}.quiz-exam-actionbar .add-btn:hover{background:#0c7688}.quiz-exam-main .quiz-option{border:none;border-radius:6px;padding:10px 8px;background:none}.quiz-exam-main .quiz-option:hover{border-color:transparent;background:#1a3c8c0a}.quiz-exam-main .quiz-option.selected{border-color:transparent;background:#1a3c8c14}.quiz-exam-main .quiz-options{gap:4px}@media (max-width: 760px){.quiz-exam-body{grid-template-columns:1fr}.quiz-exam-sidebar{position:static}}.quiz-option:hover{border-color:#c7d0e6}.quiz-option input{accent-color:var(--brand);width:16px;height:16px;flex-shrink:0}.quiz-option span{flex:1}.quiz-option.selected{border-color:var(--brand);background:#1a3c8c0d}.quiz-option.correct{border-color:var(--green);background:#1f9d5514;color:#1a7a41}.quiz-option.wrong{border-color:var(--red);background:#e23b3b0f;color:#b02a2a}.quiz-option.correct svg{color:var(--green);flex-shrink:0}.quiz-submit-btn{max-width:320px}@media (max-width: 640px){.quiz-page-head{flex-direction:column}.quiz-set-card{flex-wrap:wrap}.quiz-set-start-btn{max-width:none;width:100%}.quiz-score-banner{flex-wrap:wrap}.quiz-submit-btn{max-width:none;width:100%}}.mocktest-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1200;background:var(--bg-alt);overflow-y:auto;padding:22px 22px 40px}.mocktest-exam,.mocktest-results{max-width:none;width:100%;margin:0}.mocktest-instructions-wrap{width:100%}.mocktest-instructions-wrap .quiz-runner{max-width:none;width:100%}.mocktest-topbar{align-items:center}.mocktest-exit-btn{margin-bottom:0}.mocktest-title{flex:1;min-width:160px;text-align:center}.mocktest-title h2{font-size:17px}.mocktest-fullscreen-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;font-size:13px;white-space:nowrap;border-color:var(--brand)}.mocktest-clock{gap:8px}.mocktest-time-label{font-weight:800;font-size:14px;color:var(--ink)}.mocktest-clock-box{display:inline-block;background:#3a4356;color:#fff;border:none;border-radius:5px;padding:3px 8px;font-variant-numeric:tabular-nums;font-weight:700;min-width:26px;text-align:center}.mocktest-section-tabs{display:flex;align-items:center;gap:6px;border-bottom:1px solid var(--line);margin-bottom:18px;padding-bottom:12px;overflow-x:auto}.mocktest-sections-label{font-size:11px;font-weight:800;color:var(--muted);letter-spacing:.5px;padding-right:14px;margin-right:6px;border-right:1px solid var(--line);white-space:nowrap}.mocktest-section-tab{background:none;border:none;font:inherit;font-size:13.5px;font-weight:700;color:var(--muted);padding:8px 16px;cursor:pointer;white-space:nowrap;border-radius:999px;transition:background .15s,color .15s}.mocktest-section-tab:hover{color:var(--ink)}.mocktest-section-tab.active{color:#fff;background:var(--brand)}.mocktest-qmeta{display:flex;align-items:center;flex-wrap:wrap;gap:16px;font-weight:700}.mocktest-marks{display:inline-flex;gap:6px;font-weight:800;font-size:12.5px}.mocktest-marks-pos,.mocktest-marks-neg{display:inline-flex;align-items:center;justify-content:center;color:#fff;border-radius:999px;padding:3px 10px;line-height:1.3}.mocktest-marks-pos{background:var(--green)}.mocktest-marks-neg{background:var(--red)}.mocktest-qtime{display:inline-flex;align-items:center;gap:4px;font-weight:600;color:var(--muted);font-size:12.5px}.mocktest-report-btn{margin-left:auto;display:inline-flex;align-items:center;gap:5px;background:none;border:none;color:var(--muted);font:inherit;font-size:12.5px;font-weight:700;cursor:pointer;padding:4px 6px}.mocktest-report-btn:hover{color:var(--red)}.mocktest-user-chip{display:flex;align-items:center;gap:9px;padding-bottom:12px;margin-bottom:2px;border-bottom:1px solid var(--line);font-weight:700;font-size:13.5px;color:var(--ink)}.mocktest-user-avatar{width:30px;height:30px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}.mocktest-section-label{font-size:11.5px;font-weight:800;color:var(--muted);letter-spacing:.3px}.mock-test-last-score{font-size:12.5px;color:var(--muted);margin-bottom:8px}.mocktest-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1300;background:#0a143280;display:flex;align-items:center;justify-content:center;padding:20px}.mocktest-modal{background:#fff;border-radius:var(--radius);width:100%;max-width:440px;max-height:82vh;overflow-y:auto}.mocktest-modal-wide{max-width:720px}.mocktest-modal-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff}.mocktest-modal-head h3{font-size:16px;font-weight:800}.mocktest-modal-close{background:none;border:none;cursor:pointer;color:var(--muted);padding:4px}.mocktest-modal-close:hover{color:var(--ink)}.mocktest-modal-body{padding:18px 20px 22px}.mocktest-report-textarea{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:10px 12px;font:inherit;font-size:13.5px;margin:10px 0 14px;resize:vertical}.mocktest-report-sent{text-align:center;padding:10px 0;color:var(--green)}.mocktest-report-sent p{color:var(--ink);margin-top:8px}.mocktest-instructions-list{display:grid;gap:10px;padding-left:18px;font-size:13.5px;line-height:1.55}.mocktest-paper-section+.mocktest-paper-section{margin-top:20px}.mocktest-paper-section h4{font-size:14px;font-weight:800;color:var(--brand);margin-bottom:10px}.mocktest-paper-question{margin-bottom:14px;font-size:13.5px}.mocktest-paper-question p{font-weight:600;margin-bottom:6px}.mocktest-paper-options{padding-left:20px;display:grid;gap:3px;color:var(--muted)}@media (max-width: 760px){.mocktest-overlay{padding:14px 12px 30px}.mocktest-title{order:-1;width:100%;text-align:left}.mocktest-fullscreen-btn span{display:none}}.performance-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:30px}.performance-stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:4px}.performance-stat-value{font-size:26px;font-weight:800;color:var(--brand)}.performance-stat-label{font-size:12.5px;font-weight:600;color:var(--muted)}.performance-section{margin-bottom:32px}.performance-section h3{font-size:16px;font-weight:800;margin-bottom:14px}.performance-subject-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.performance-subject-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px}.performance-subject-head{display:flex;justify-content:space-between;align-items:center;font-size:13.5px;font-weight:700;margin-bottom:10px}.performance-subject-head span:first-child{display:inline-flex;align-items:center;gap:6px;color:var(--ink)}.performance-subject-head span:last-child{color:var(--brand)}.performance-subject-meta{display:block;margin-top:8px;font-size:12px;color:var(--muted)}.performance-pct-badge{font-size:12.5px;font-weight:700;border-radius:999px;padding:3px 10px}.performance-pct-badge.good{background:#1f9d551f;color:#1a7a41}.performance-pct-badge.ok{background:#f5a62326;color:#a5680a}.performance-pct-badge.low{background:#e23b3b1a;color:#b02a2a}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}