:root{--bg-primary:#1a1d22;--bg-secondary:#21242a;--bg-navbar:#16181d;--bg-card:#2e3139;--text-primary:#eef2ff;--text-secondary:#c5d0f0;--text-muted:#7a8ec0;--accent:#e8b84b;--accent-rgb:232, 184, 75;--accent-hover:#d4a43a;--accent-text:#1a1d22;--success:#2e7d52;--success-rgb:46, 125, 82;--danger:#e24b4a;--danger-rgb:226, 75, 74;--border:#ffffff17;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--navbar-height:60px}html{scroll-behavior:smooth}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg-primary);color:var(--text-primary);font-family:Inter,system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit;font-size:inherit;color:inherit;background:0 0;border:none;padding:0}main{padding-top:var(--navbar-height)}.auth-modal-overlay{-webkit-backdrop-filter:blur(4px);z-index:300;background:#0009;justify-content:center;align-items:center;padding:20px;animation:.15s authFadeIn;display:flex;position:fixed;inset:0}.auth-modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:400px;padding:36px 32px 32px;animation:.2s authModalPop;position:relative;box-shadow:0 20px 60px #00000073}.auth-modal.rtl{text-align:right}.auth-modal-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:4px;font-size:22px;line-height:1;position:absolute;top:14px;right:16px}.auth-modal.rtl .auth-modal-close{left:16px;right:auto}.auth-modal-close:hover{color:var(--text-primary)}.auth-modal-header{text-align:center;margin-bottom:28px}.auth-modal.rtl .auth-modal-header{text-align:center}.auth-modal-logo{background:var(--accent);border-radius:var(--radius-md);width:52px;height:52px;box-shadow:0 0 0 6px rgba(var(--accent-rgb), .12);justify-content:center;align-items:center;margin:0 auto 16px;display:flex}.auth-modal-title{color:var(--text-primary);margin:0 0 8px;font-size:21px;font-weight:600}.auth-modal-subtitle{color:var(--text-secondary);margin:0;max-width:300px;margin-inline:auto;font-size:14px;line-height:1.5}.auth-modal-subtitle strong{color:var(--text-primary)}.auth-modal-form{flex-direction:column;display:flex}.auth-modal-label{color:var(--text-secondary);margin-bottom:6px;font-size:12px;font-weight:500}.auth-modal-input{border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-secondary);width:100%;height:46px;color:var(--text-primary);box-sizing:border-box;margin-bottom:18px;padding:0 14px;font-size:15px;transition:border-color .15s}.auth-modal-code-input{letter-spacing:6px;text-align:center;font-size:19px;font-weight:600}.auth-modal-input:focus{border-color:var(--accent);outline:none}.auth-modal-submit{background:var(--accent);width:100%;height:46px;color:var(--accent-text);border-radius:var(--radius-sm);cursor:pointer;border:none;font-size:15px;font-weight:600;transition:opacity .15s,transform .1s}.auth-modal-submit:hover:not(:disabled){opacity:.88}.auth-modal-submit:active:not(:disabled){transform:scale(.98)}.auth-modal-submit:disabled{opacity:.6;cursor:not-allowed}.auth-modal-back{width:100%;color:var(--text-muted);cursor:pointer;background:0 0;border:none;margin-top:12px;padding:6px 0;font-size:13px}.auth-modal-back:hover{color:var(--text-secondary)}.auth-modal-error{color:var(--danger);margin:-8px 0 16px;font-size:13px}@keyframes authFadeIn{0%{opacity:0}to{opacity:1}}@keyframes authModalPop{0%{opacity:0;transform:scale(.94)translateY(8px)}to{opacity:1;transform:scale(1)translateY(0)}}@media (width<=600px){.auth-modal{padding:30px 22px 26px}}.navbar{height:var(--navbar-height);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);z-index:100;background:#16181db3;justify-content:space-between;align-items:center;padding:0 2rem;display:flex;position:fixed;top:0;left:0;right:0}.navbar-logo{align-items:center;gap:10px;display:flex}.logo-icon{background:var(--accent);border-radius:var(--radius-sm);justify-content:center;align-items:center;width:40px;height:40px;display:flex}.logo-text{color:var(--text-primary);font-size:16px;font-weight:500}.navbar-right{align-items:center;gap:8px;display:flex}.nav-lang-dropdown{position:relative}.nav-lang-trigger{border-radius:var(--radius-sm);border:1px solid var(--border);height:36px;color:var(--text-primary);cursor:pointer;white-space:nowrap;background:0 0;align-items:center;gap:6px;padding:0 12px;font-size:13px;transition:background .15s;display:flex}.nav-lang-trigger:hover{background:var(--bg-secondary)}.nav-lang-menu{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);z-index:200;min-width:160px;position:absolute;top:calc(100% + 6px);right:0;overflow:hidden;box-shadow:0 8px 24px #0000004d}.nav-lang-option{width:100%;color:var(--text-primary);cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:8px;padding:10px 14px;font-size:13px;transition:background .12s;display:flex}.nav-lang-option:hover{background:var(--bg-secondary)}.nav-lang-option.active{color:var(--accent);font-weight:500}.lang-code{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;min-width:24px;font-size:11px;font-weight:500}.auth-placeholder{border-radius:var(--radius-sm);background:var(--bg-secondary);width:75px;height:31px}.sign-in-btn{background:var(--accent);color:var(--accent-text);border-radius:var(--radius-sm);cursor:pointer;border:none;padding:6px 14px;font-size:.875rem;font-weight:600;transition:opacity .15s;animation:.4s fadeScale}.sign-in-btn:hover{opacity:.85}.sign-out-btn{color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;background:0 0;padding:6px 14px;font-size:.875rem;font-weight:600;transition:background .15s;animation:.4s fadeScale}.sign-out-btn:hover{background:var(--bg-secondary)}@keyframes fadeScale{0%{opacity:0;transform:scale(.85)}to{opacity:1;transform:scale(1)}}@media (width<=600px){.navbar{padding:0 1rem}.nav-lang-trigger{padding:0 8px}.nav-lang-trigger .lang-label,.nav-lang-trigger svg{display:none}}.hero{background:var(--bg-secondary);border-bottom:1px solid var(--border);justify-content:center;align-items:center;min-height:100vh;padding:2rem 4rem;display:flex;position:relative}.hero-content{justify-content:space-between;align-items:center;gap:4rem;width:100%;max-width:1100px;display:flex}.hero-text{text-align:left;flex-direction:column;flex:1;align-items:flex-start;animation:.6s ease-out heroFadeUp;display:flex}.hero-title{color:var(--text-primary);margin-bottom:1.25rem;font-size:3.8rem;font-weight:500;line-height:1.15}.hero-subtitle{color:var(--text-secondary);max-width:480px;margin-bottom:2.5rem;font-size:1.1rem;line-height:1.7}.hero-actions{align-items:center;gap:14px;display:flex}.btn-primary,.btn-secondary{border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;border:none;align-items:center;height:50px;padding:0 36px;font-size:15px;font-weight:500;transition:background .15s,border-color .15s,color .15s;display:flex}.btn-primary{background:var(--accent);color:var(--accent-text)}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{color:var(--accent);border:2px solid var(--accent);background:0 0;padding:0 34px}.btn-secondary:hover{background:rgba(var(--accent-rgb), .1)}.hero-visual-scale{flex-shrink:0}.hero-visual{perspective:1400px;flex-shrink:0;justify-content:center;align-items:center;animation:.6s ease-out .15s backwards heroFadeUp,4s ease-in-out .6s infinite phoneFloat;display:flex;position:relative}.phone-contact-shadow{filter:blur(10px);pointer-events:none;z-index:-1;background:radial-gradient(#0000008c 0%,#00000040 45%,#0000 75%);border-radius:50%;width:220px;height:34px;position:absolute;bottom:-30px;left:50%;transform:translate(-50%)}.phone-rotator{transform-style:preserve-3d}.phone-auto-rotate{animation:8s ease-in-out infinite phoneAutoRotate}.phone-outer{transform-style:preserve-3d;background:linear-gradient(135deg,#34373f 0%,#2a2d35 35%,#202329 70%,#2a2d35 100%);border:2px solid #ffffff26;border-radius:44px;width:320px;height:610px;position:relative;overflow:visible;box-shadow:-1px -1px #ffffff40,0 0 0 1px #ffffff0d,inset 0 0 0 1px #ffffff14,0 40px 80px #00000080}.phone-glow-layer{background:radial-gradient(circle, rgba(var(--accent-rgb), .65) 0%, rgba(var(--accent-rgb), .28) 45%, transparent 75%);filter:blur(40px);pointer-events:none;border-radius:90px;animation:5s ease-in-out infinite glowPulseLayer;position:absolute;inset:-90px;transform:translateZ(-90px)}.phone-btn-volume-up,.phone-btn-volume-down,.phone-btn-power{background:linear-gradient(90deg,#46494f 0%,#3a3d45 50%,#2e3138 100%);border:1px solid #ffffff1a;border-radius:2px;position:absolute;transform:translateZ(2px);box-shadow:0 1px 2px #0006}.phone-btn-volume-up{border-radius:2px 0 0 2px;width:4px;height:32px;top:100px;left:-4px}.phone-btn-volume-down{border-radius:2px 0 0 2px;width:4px;height:32px;top:144px;left:-4px}.phone-btn-power{border-radius:0 2px 2px 0;width:4px;height:48px;top:120px;right:-4px}.phone-screen-wrapper{background:var(--bg-primary);border-radius:38px;flex-direction:column;display:flex;position:absolute;inset:6px;overflow:hidden;transform:translateZ(16px);box-shadow:inset 0 0 0 1px #0009,inset 0 2px 6px #00000080}.phone-glass-sheen{z-index:6;pointer-events:none;mix-blend-mode:screen;background:linear-gradient(115deg,#fff0 30%,#ffffff0f 45%,#ffffff1a 50%,#ffffff0f 55%,#fff0 70%);position:absolute;inset:0}.phone-notch{flex-shrink:0;justify-content:center;padding-top:10px;display:flex;transform:translateZ(6px)}.phone-notch-pill{background:#0e1014;border-radius:20px;justify-content:flex-end;align-items:center;width:90px;height:26px;padding-right:10px;display:flex;position:relative}.phone-camera-lens{background:radial-gradient(circle at 35% 35%,#4a5568 0%,#1a1d22 55%,#05060a 100%);border-radius:50%;width:10px;height:10px;box-shadow:inset 0 0 0 1px #ffffff14}.phone-status-bar{color:var(--text-muted);flex-shrink:0;justify-content:space-between;align-items:center;padding:6px 20px 0;font-size:10px;font-weight:600;display:flex}.phone-status-icons{letter-spacing:2px;font-size:8px}.phone-app{flex-direction:column;flex:1;gap:10px;padding:14px 16px 0;display:flex;overflow:hidden}.phone-app-content{flex-direction:column;gap:10px;animation:.4s ease-out phoneContentIn;display:flex}.phone-quiz-meta{justify-content:space-between;align-items:center;display:flex}.phone-quiz-label,.phone-quiz-counter{color:var(--text-muted);font-size:10px}.phone-quiz-bar{background:var(--border);border-radius:2px;height:3px;overflow:hidden}.phone-quiz-bar-fill{background:var(--accent);border-radius:2px;height:100%}.phone-image-wrapper{border-radius:var(--radius-md);flex-shrink:0;width:100%;overflow:hidden}.phone-question-image{object-fit:cover;width:100%;height:130px;display:block}.phone-question{color:var(--text-primary);background:var(--bg-secondary);border-radius:var(--radius-md);flex-shrink:0;padding:10px 12px;font-size:12px;font-weight:500;line-height:1.6}.phone-options{flex-direction:column;gap:7px;display:flex}.phone-option{border-radius:var(--radius-md);border:1px solid var(--border);color:var(--text-secondary);opacity:0;background:0 0;align-items:center;gap:9px;padding:9px 11px;font-size:11px;line-height:1.4;animation:.35s ease-out forwards phoneContentIn;display:flex}.phone-option.correct{border-color:var(--accent);color:var(--accent);background:rgba(var(--accent-rgb), .08)}.phone-option-num{opacity:.8;border:1px solid;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:16px;height:16px;font-size:9px;font-weight:600;display:flex}.phone-skeleton{flex-direction:column;gap:10px;display:flex}.skeleton-line,.skeleton-block{border-radius:var(--radius-md);background:linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-card) 50%, var(--bg-secondary) 75%);background-size:300px 100%;animation:1.4s linear infinite shimmer}.skeleton-line{width:60%;height:10px}.skeleton-line.short{width:40%}.skeleton-line.skeleton-meta{width:50%;height:8px}.skeleton-block{height:34px}.skeleton-image{height:100px}.skeleton-option{height:30px}.phone-home-bar{flex-shrink:0;justify-content:center;align-items:center;height:24px;display:flex}.phone-home-bar:after{content:"";background:#ffffff26;border-radius:2px;width:80px;height:4px}.hero-text--rtl{text-align:right}.hero-text--rtl .hero-subtitle{max-width:100%}@keyframes phoneFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-14px)}}@keyframes phoneAutoRotate{0%,to{transform:rotateY(-7deg)rotateX(2deg)}50%{transform:rotateY(7deg)rotateX(-2deg)}}@keyframes heroFadeUp{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@keyframes glowPulseLayer{0%,to{opacity:.75;transform:translateZ(-90px)scale(1)}50%{opacity:1;transform:translateZ(-90px)scale(1.12)}}@keyframes phoneContentIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes shimmer{0%{background-position:-150px 0}to{background-position:150px 0}}@media (width<=900px){.hero{padding:calc(var(--navbar-height) + 3rem) 2rem 3rem;height:auto;min-height:100vh}.hero-content{flex-direction:column;align-items:center;gap:2rem}.hero-text{text-align:center;align-items:center}.hero-subtitle{max-width:520px}.hero-visual-scale{transform-origin:top;margin-top:1rem;margin-bottom:-130px;transform:scale(.8)}}@media (width<=600px){.hero{padding:calc(var(--navbar-height) + 3rem) 1.5rem 2.5rem}.hero-content{gap:1.5rem}.hero-title{font-size:2.6rem}.hero-subtitle{margin-bottom:1.75rem;font-size:1rem}.hero-actions{flex-direction:column;align-items:stretch;width:100%}.btn-primary,.btn-secondary{justify-content:center;width:100%}.hero-visual-scale{transform-origin:top;margin-top:1.5rem;margin-bottom:-220px;transform:scale(.62)}}@media (prefers-reduced-motion:reduce){.hero-text,.hero-visual,.phone-outer,.phone-auto-rotate,.phone-glow-layer,.phone-app-content,.phone-option,.skeleton-line,.skeleton-block{animation:none}}.stats-bar{background:var(--bg-primary);border-bottom:1px solid var(--border);justify-content:center;align-items:center;padding:3rem 2rem;display:flex}.stats-card{border-radius:var(--radius-lg);justify-content:space-between;align-items:center;width:100%;max-width:700px;padding:1rem 1.5rem;transition:box-shadow .3s;display:flex;position:relative}.stats-card:hover{box-shadow:0 0 32px rgba(var(--accent-rgb), .18)}.stat{opacity:0;flex-direction:column;flex:1;align-items:center;gap:4px;transition:opacity .5s,transform .5s;display:flex;transform:translateY(16px)}.stats-card.visible .stat{opacity:1;transform:translateY(0)}.stat-num{color:var(--accent);font-size:2.8rem;font-weight:500;line-height:1}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;margin-top:4px;font-size:11px}.stat-divider{background:var(--border);flex-shrink:0;width:1px;height:50px}@media (prefers-reduced-motion:reduce){.stat{opacity:1;transition:none;transform:none}.stats-card{transition:none}}@media (width<=600px){.stats-bar{padding:2rem 1rem}.stats-card{flex-direction:column;gap:1.5rem}.stat-num{font-size:1.8rem}.stat-label{font-size:10px}.stat-divider{width:80%;height:1px}}.topic-list-wrapper{background:var(--bg-secondary);width:100%}.topic-list-section{max-width:1100px;scroll-margin-top:var(--navbar-height);margin:0 auto;padding:4rem 2rem}.topic-list-header{margin-bottom:2rem}.topic-list-title{color:var(--text-primary);font-size:1.25rem;font-weight:500}.topic-grid{flex-wrap:wrap;justify-content:center;gap:14px;display:flex}.topic-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);opacity:0;border-bottom:2px solid #0000;flex-direction:column;flex:0 0 calc(50% - 7px);justify-content:space-between;max-width:calc(50% - 7px);min-height:150px;padding:1.25rem;transition:border-color .2s,border-bottom-color .2s,transform .2s,box-shadow .2s;display:flex;position:relative;overflow:hidden;transform:translateY(20px)}@media (width>=900px){.topic-card{flex:0 0 calc(33.333% - 9.33px);max-width:calc(33.333% - 9.33px)}}.topic-card.visible{opacity:1;transform:translateY(0)}.topic-card:hover{border-bottom-color:var(--accent);box-shadow:0 8px 24px #00000014, 0 0 40px rgba(var(--accent-rgb), .1);transform:translateY(-3px)}.topic-card-num{color:var(--accent);opacity:.08;pointer-events:none;-webkit-user-select:none;user-select:none;font-size:6rem;font-weight:700;line-height:1;transition:opacity .2s;position:absolute;top:-.2rem;right:.75rem}.topic-card:hover .topic-card-num{opacity:.13}.topic-card-icon{z-index:1;background:rgba(var(--accent-rgb), .1);width:34px;height:34px;color:var(--accent);border-radius:50%;justify-content:center;align-items:center;margin-bottom:.6rem;display:flex;position:relative}.topic-card-icon-svg{width:17px;height:17px}.topic-card-body{z-index:1;flex-direction:column;gap:.4rem;padding-right:3.5rem;display:flex;position:relative}.topic-card-name{color:var(--text-primary);font-size:14px;font-weight:500;line-height:1.4}.topic-card-count{color:var(--text-muted);font-size:12px}.topic-list-section.rtl .topic-card-num{left:.75rem;right:auto}.topic-list-section.rtl .topic-card-body{padding-left:3.5rem;padding-right:0}.topic-list-section.rtl .topic-progress-row{flex-direction:row-reverse}.state-msg{text-align:center;color:var(--text-muted);padding:3rem;font-size:14px}.state-msg.error{color:var(--accent)}.topic-progress-row{z-index:1;align-items:center;gap:8px;margin-top:.75rem;display:flex;position:relative}.topic-progress-bar{background:var(--border);border-radius:99px;flex:1;height:3px;overflow:hidden}.topic-progress-fill{background:var(--accent);border-radius:99px;height:100%;transition:width .4s}.topic-progress-pct{color:var(--text-muted);text-align:right;flex-shrink:0;min-width:28px;font-size:10px;font-weight:600}.topic-list-section.rtl .topic-progress-pct{text-align:left}.topic-card-check{z-index:1;background:var(--success);width:20px;height:20px;color:var(--text-primary);box-shadow:0 0 0 3px rgba(var(--success-rgb), .15);border-radius:50%;justify-content:center;align-items:center;font-size:11px;line-height:1;display:flex;position:absolute;top:.75rem;right:.75rem}.topic-list-section.rtl .topic-card-check{left:.75rem;right:auto}@media (width<=600px){.topic-list-section{padding:2.5rem 1rem}.topic-card{flex:0 0 100%;max-width:100%;min-height:120px}.topic-card-num{font-size:4.5rem}}.qhd-overlay{-webkit-backdrop-filter:blur(4px);z-index:100;opacity:0;pointer-events:none;background:#00000080;transition:opacity .25s;position:fixed;inset:0}.qhd-overlay.visible{opacity:1;pointer-events:all}.qhd-drawer{background:var(--bg-secondary);border-left:1px solid var(--border);z-index:101;flex-direction:column;width:360px;max-width:100vw;height:100%;transition:transform .3s;display:flex;position:fixed;top:0;right:0;transform:translate(100%)}.qhd-drawer.open{transform:translate(0)}.qhd-drawer.rtl{border-left:none;border-right:1px solid var(--border);left:0;right:auto;transform:translate(-100%)}.qhd-drawer.rtl.open{transform:translate(0)}.qhd-drawer.no-transition{transition:none}.qhd-header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;display:flex}.qhd-title{color:var(--text-primary);margin:0;font-size:1rem;font-weight:600}.qhd-close{border:1px solid var(--border);border-radius:var(--radius-sm);width:28px;height:28px;color:var(--text-muted);cursor:pointer;background:0 0;justify-content:center;align-items:center;transition:border-color .15s,color .15s;display:flex}.qhd-close:hover{border-color:var(--accent);color:var(--accent)}.qhd-close-icon{width:11px;height:11px;position:relative}.qhd-close-icon:before,.qhd-close-icon:after{content:"";background:currentColor;width:100%;height:1.6px;position:absolute;top:50%;left:50%}.qhd-close-icon:before{transform:translate(-50%,-50%)rotate(45deg)}.qhd-close-icon:after{transform:translate(-50%,-50%)rotate(-45deg)}.qhd-body{flex-direction:column;flex:1;gap:8px;padding:1rem;display:flex;overflow-y:auto}.qhd-state{text-align:center;color:var(--text-muted);padding:3rem 1rem;font-size:14px}.qhd-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);text-align:left;cursor:pointer;opacity:0;flex-direction:column;gap:.4rem;width:100%;padding:1rem 1.25rem;transition:border-color .15s,box-shadow .2s,transform .15s;animation:.35s ease-out forwards qhdItemIn;display:flex}.qhd-drawer.rtl .qhd-item{text-align:right}.qhd-item:hover{border-color:var(--accent);box-shadow:0 0 24px rgba(var(--accent-rgb), .1);transform:translateY(-1px)}.qhd-item-top{justify-content:space-between;align-items:center;display:flex}.qhd-badge{text-transform:uppercase;letter-spacing:.5px;border-radius:99px;align-items:center;gap:4px;padding:3px 8px;font-size:11px;font-weight:600;display:inline-flex}.qhd-badge.passed{background:rgba(var(--success-rgb), .15);color:var(--success)}.qhd-badge.failed{background:rgba(var(--danger-rgb), .15);color:var(--danger)}.qhd-score{color:var(--text-primary);font-size:14px;font-weight:600}.qhd-date{color:var(--text-muted);margin:0;font-size:12px}@keyframes qhdItemIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (width<=600px){.qhd-drawer{width:100vw}}@media (prefers-reduced-motion:reduce){.qhd-item{opacity:1;animation:none}}.quiz-launch{background:var(--bg-primary);border-top:1px solid var(--border);border-bottom:1px solid var(--border);scroll-margin-top:var(--navbar-height);justify-content:center;padding:7rem 2rem;display:flex}.quiz-launch-card{text-align:center;background:rgba(var(--accent-rgb), .04);border:1px solid rgba(var(--accent-rgb), .15);border-radius:var(--radius-lg);width:100%;max-width:780px;box-shadow:0 0 60px rgba(var(--accent-rgb), .06), 0 8px 32px #0003;opacity:0;flex-direction:column;align-items:center;gap:2.5rem;padding:4.5rem 3.5rem;transition:opacity .6s ease-out,transform .6s ease-out,box-shadow .3s;display:flex;transform:translateY(24px)}.quiz-launch-card.visible{opacity:1;transform:translateY(0)}.quiz-launch-card:hover{box-shadow:0 0 90px rgba(var(--accent-rgb), .12), 0 8px 32px #0003}.quiz-launch-text{flex-direction:column;gap:1rem;max-width:560px;display:flex}.quiz-launch-sub{text-transform:uppercase;letter-spacing:1.4px;color:var(--accent);margin:0;font-size:13px;font-weight:600}.quiz-launch-title{color:var(--text-primary);margin:0;font-size:2.75rem;font-weight:600;line-height:1.2}.quiz-launch-desc{color:var(--text-secondary);margin:0;font-size:1.05rem;line-height:1.7}.quiz-launch-actions{flex-wrap:wrap;justify-content:center;gap:1rem;display:flex}.quiz-launch-btn{background:var(--accent);color:var(--accent-text);border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;border:none;padding:16px 40px;font-size:16px;font-weight:600;transition:background .15s,transform .1s}.quiz-launch-btn:hover{background:var(--accent-hover);transform:translateY(-1px)}.quiz-history-btn{color:var(--accent);border:2px solid var(--accent);border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;background:0 0;padding:16px 38px;font-size:16px;font-weight:600;transition:background .15s,transform .1s}.quiz-history-btn:hover{background:rgba(var(--accent-rgb), .1);transform:translateY(-1px)}@media (width<=600px){.quiz-launch{padding:4rem 1rem}.quiz-launch-card{gap:2rem;padding:3rem 1.75rem}.quiz-launch-title{font-size:2rem}.quiz-launch-actions{flex-direction:column;width:100%}.quiz-launch-btn,.quiz-history-btn{width:100%}}@media (prefers-reduced-motion:reduce){.quiz-launch-card{opacity:1;transition:none;transform:none}}.faq-wrapper{background:var(--bg-secondary);width:100%}.faq{max-width:720px;margin:0 auto;padding:64px 24px}.faq__title{color:var(--text-primary);text-align:center;margin-bottom:32px;font-size:1.5rem;font-weight:700}.faq__list{flex-direction:column;gap:12px;display:flex}.faq__item{background:var(--bg-card);border-radius:var(--radius-md);opacity:0;border:1px solid #0000;transition:border-color .2s,box-shadow .2s,transform .3s,opacity .3s;overflow:hidden;transform:translateY(16px)}.faq__item.visible{opacity:1;transform:translateY(0)}.faq__item:hover{box-shadow:0 0 30px rgba(var(--accent-rgb), .08)}.faq__item--open{border-color:var(--accent);box-shadow:0 0 40px rgba(var(--accent-rgb), .1)}.faq__question{cursor:pointer;width:100%;color:var(--text-primary);text-align:left;background:0 0;border:none;justify-content:space-between;align-items:center;gap:16px;padding:18px 20px;font-size:.95rem;font-weight:600;line-height:1.4;display:flex}.faq__question:hover{color:var(--accent)}.faq__icon{flex-shrink:0;width:18px;height:18px;position:relative}.faq__icon:before,.faq__icon:after{content:"";background:var(--accent);transition:transform .3s;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.faq__icon:before{width:100%;height:2px}.faq__icon:after{width:2px;height:100%}.faq__item--open .faq__icon:after{opacity:0;transform:translate(-50%,-50%)rotate(90deg)}.faq__item--open .faq__icon:before{transform:translate(-50%,-50%)rotate(180deg)}.faq__answer-wrapper{max-height:0;transition:max-height .5s ease-in-out;overflow:hidden}.faq__item--open .faq__answer-wrapper{max-height:300px}.faq__answer{color:var(--text-secondary);margin:0;padding:0 20px 18px;font-size:.9rem;line-height:1.65}[dir=rtl] .faq__question,[dir=rtl] .faq__answer{text-align:right}@media (width<=600px){.faq{padding:48px 16px}.faq__title{font-size:1.25rem}.faq__question{padding:16px;font-size:.9rem}.faq__answer{padding:0 16px 16px}}@media (prefers-reduced-motion:reduce){.faq__item{opacity:1;transition:none;transform:none}}.footer{background:var(--bg-navbar);border-top:1px solid var(--border);width:100%}.footer__inner{justify-content:center;align-items:center;max-width:1100px;margin:0 auto;padding:24px 2rem;display:flex}.footer__copy{color:var(--text-muted);text-align:center;margin:0;font-size:13px}@media (width<=600px){.footer__inner{padding:20px 1rem}}.home{flex-direction:column;display:flex}.tq-page{max-width:860px;padding:calc(var(--navbar-height) + .75rem) 2rem 4rem;margin:0 auto}.tq-header{margin-bottom:2.5rem}.tq-meta{text-transform:uppercase;letter-spacing:.8px;color:var(--accent);margin-bottom:.5rem;font-size:12px;font-weight:500}.tq-title{color:var(--text-primary);margin-bottom:.4rem;font-size:1.75rem;font-weight:500;line-height:1.3}.tq-count{color:var(--text-muted);font-size:13px}.tq-grid{grid-template-columns:repeat(8,1fr);gap:10px;display:grid}@keyframes squareFadeIn{0%{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}.q-square{aspect-ratio:1;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-secondary);justify-content:center;align-items:center;font-size:13px;font-weight:500;transition:border-color .15s,color .15s,transform .15s,box-shadow .15s;animation:.25s both squareFadeIn;display:flex;position:relative;overflow:visible}.q-square:hover{border-color:var(--accent);color:var(--accent);box-shadow:0 0 14px rgba(var(--accent-rgb), .28);transform:scale(1.06)}.tq-state{text-align:center;color:var(--text-muted);padding:6rem 2rem;font-size:14px}.tq-state.error{color:var(--danger)}.tq-back{color:var(--text-secondary);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);align-items:center;gap:6px;margin-bottom:1.5rem;padding:6px 12px;font-size:13px;font-weight:500;transition:border-color .15s,color .15s;display:inline-flex}.tq-back:hover,.q-square--correct{border-color:var(--accent);color:var(--accent)}.q-square--correct:hover{border-color:var(--accent)}.q-square-check{background:var(--accent);width:16px;height:16px;color:var(--accent-text);z-index:2;border-radius:50%;justify-content:center;align-items:center;font-size:13px;font-weight:700;line-height:1;display:flex;position:absolute;top:-8px;right:-8px}@media (prefers-reduced-motion:reduce){.q-square{animation:none}.q-square:hover{transform:none}}@media (width<=600px){.tq-page{padding:calc(var(--navbar-height) + .5rem) 1rem 3rem}.tq-title{font-size:1.35rem}.tq-grid{grid-template-columns:repeat(5,1fr);gap:8px}}@keyframes qpsFadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.qp-page{max-width:680px;padding:calc(var(--navbar-height) + .75rem) 2rem 4rem;margin:0 auto}.qp-state{text-align:center;color:var(--text-muted);padding:4rem 2rem}.qp-state.error{color:var(--danger)}.qp-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);flex-direction:column;gap:1.5rem;padding:2rem;display:flex}.qp-topnav{justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.5rem;animation:.35s both qpsFadeIn;display:flex}.qp-back{color:var(--text-secondary);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);align-items:center;gap:6px;padding:6px 12px;font-size:13px;font-weight:500;transition:border-color .15s,color .15s,box-shadow .15s;display:inline-flex}.qp-back:hover{border-color:var(--accent);color:var(--accent);box-shadow:0 0 14px rgba(var(--accent-rgb), .18)}.qp-position{color:var(--text-muted);text-align:center;min-width:48px;font-size:12px}.qp-bottom-nav{justify-content:space-between;gap:10px;margin-top:1rem;animation:.35s .12s both qpsFadeIn;display:flex}.qp-nav-btn{border-radius:var(--radius-md);border:1px solid var(--border);background:var(--bg-card);color:var(--text-secondary);flex:1;padding:12px;font-size:14px;font-weight:500;transition:border-color .15s,color .15s,background .15s,box-shadow .15s}.qp-nav-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent);box-shadow:0 0 16px rgba(var(--accent-rgb), .2)}.qp-nav-btn.primary{background:var(--accent);color:var(--accent-text);border-color:var(--accent)}.qp-nav-btn.primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover);color:var(--accent-text);box-shadow:0 0 20px rgba(var(--accent-rgb), .3)}.qp-nav-btn:disabled{opacity:.3;cursor:not-allowed}@media (prefers-reduced-motion:reduce){.qp-topnav,.qp-bottom-nav{animation:none}}@media (width<=600px){.qp-page{padding:calc(var(--navbar-height) + .5rem) 1rem 3rem}.qp-back{font-size:12px}.qp-card{padding:1.25rem}}@keyframes qpFadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.qp-image-wrap{justify-content:center;display:flex}.qp-image{object-fit:contain;border-radius:var(--radius-md);border:1px solid var(--border);max-width:100%;max-height:280px;box-shadow:0 4px 20px #00000040}.qp-question-header{align-items:flex-start;gap:.75rem;animation:.35s both qpFadeIn;display:flex}.qp-question-text{color:var(--text-primary);font-size:1.05rem;font-weight:500;line-height:1.6}.qp-correct-badge{background:var(--accent);width:18px;height:18px;color:var(--accent-text);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;margin-top:3px;font-size:11px;font-weight:700;line-height:1;display:flex}.qp-answers{flex-direction:column;gap:8px;display:flex}.qp-answer{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-md);text-align:start;cursor:pointer;animation:.35s both qpFadeIn;animation-delay:calc(var(--qp-stagger,0) * 60ms);align-items:center;gap:12px;padding:12px 16px;transition:border-color .15s,background .15s,box-shadow .15s;display:flex}.qp-answer:hover:not(:disabled){border-color:var(--accent);box-shadow:0 0 16px rgba(var(--accent-rgb), .16)}.qp-answer:disabled{cursor:default}.qp-answer.correct{border-color:var(--success);background:rgba(var(--success-rgb), .12)}.qp-answer.wrong{border-color:var(--danger);background:rgba(var(--danger-rgb), .12)}.qp-answer.dimmed{opacity:.4}.qp-answer-num{color:var(--text-muted);flex-shrink:0;min-width:20px;font-family:monospace;font-size:11px;font-weight:600}.qp-answer-text{color:var(--text-primary);flex:1;font-size:14px;line-height:1.5}.qp-answer-icon{flex-shrink:0;font-size:14px;font-weight:700}.qp-answer.correct .qp-answer-icon{color:var(--success)}.qp-answer.wrong .qp-answer-icon{color:var(--danger)}.qp-explanation{border-radius:var(--radius-md);border:1px solid #0000;padding:1rem 1.25rem;animation:.3s both qpFadeIn}.qp-explanation.correct{background:rgba(var(--success-rgb), .1);border-color:var(--success)}.qp-explanation.wrong{background:rgba(var(--danger-rgb), .1);border-color:var(--danger)}.qp-explanation-label{text-transform:uppercase;letter-spacing:.6px;margin-bottom:.4rem;font-size:12px;font-weight:600}.qp-explanation.correct .qp-explanation-label{color:var(--success)}.qp-explanation.wrong .qp-explanation-label{color:var(--danger)}.qp-explanation-text{color:var(--text-secondary);font-size:14px;line-height:1.6}@media (prefers-reduced-motion:reduce){.qp-question-header,.qp-answer,.qp-explanation{animation:none}}@keyframes qqProgressFadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.quiz-progress-bar{background:var(--border);border-radius:2px;height:4px;margin-bottom:1.25rem;animation:.35s 60ms both qqProgressFadeIn;overflow:hidden}.quiz-progress-fill{background:var(--accent);border-radius:2px;height:100%;transition:width .3s}@media (prefers-reduced-motion:reduce){.quiz-progress-bar{animation:none}}.quiz-results{text-align:center;align-items:center;gap:1.25rem}.quiz-score-circle{border:4px solid;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;width:120px;height:120px;margin:.5rem auto 0;display:flex}.quiz-score-circle.passed{border-color:var(--success);background:rgba(var(--success-rgb), .1)}.quiz-score-circle.failed{border-color:var(--danger);background:rgba(var(--danger-rgb), .1)}.quiz-score-num{color:var(--text-primary);font-size:2.5rem;font-weight:700;line-height:1}.quiz-score-denom{color:var(--text-muted);font-size:.85rem}.quiz-verdict{font-size:1.1rem;font-weight:600}.quiz-verdict.passed{color:var(--success)}.quiz-verdict.failed{color:var(--danger)}.quiz-verdict-sub{color:var(--text-secondary);max-width:300px;font-size:14px}.quiz-results-breakdown{justify-content:center;gap:1rem;width:100%;display:flex}.quiz-breakdown-item{border-radius:var(--radius-md);border:1px solid;flex-direction:column;flex:1;align-items:center;gap:4px;max-width:120px;padding:1rem;display:flex}.quiz-breakdown-item.correct{border-color:var(--success);background:rgba(var(--success-rgb), .08)}.quiz-breakdown-item.wrong{border-color:var(--danger);background:rgba(var(--danger-rgb), .08)}.quiz-breakdown-num{color:var(--text-primary);font-size:1.75rem;font-weight:700}.quiz-breakdown-label{color:var(--text-muted);font-size:12px}.quiz-results .qp-bottom-nav{width:100%;margin-top:.5rem}.nf-page{height:calc(100vh - var(--navbar-height));text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:1rem;padding:2rem;display:flex}.nf-sign{background:var(--accent);border:5px solid var(--accent-text);width:110px;height:110px;box-shadow:0 0 0 5px var(--accent);border-radius:50%;flex-direction:column;justify-content:center;align-items:center;margin-bottom:1rem;animation:2.5s ease-in-out infinite nf-wobble;display:flex}.nf-sign-top{letter-spacing:1px;color:var(--accent-text);text-transform:uppercase;opacity:.8;margin-bottom:2px;font-size:11px;font-weight:700;line-height:1}.nf-sign-code{color:var(--accent-text);font-size:2.2rem;font-weight:700;line-height:1}@keyframes nf-wobble{0%,to{transform:rotate(-4deg)}50%{transform:rotate(4deg)}}.nf-title{color:var(--text-primary);font-size:2rem;font-weight:500}.nf-subtitle{color:var(--text-secondary);max-width:320px;font-size:1rem;line-height:1.6}.nf-btn{color:var(--text-secondary);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);align-items:center;gap:6px;margin-top:.5rem;padding:8px 16px;font-size:13px;font-weight:500;transition:border-color .15s,color .15s;display:inline-flex}.nf-btn:hover{border-color:var(--accent);color:var(--accent)}.qh-page{max-width:680px;padding:calc(var(--navbar-height) + .75rem) 2rem 4rem;margin:0 auto}.qh-state{text-align:center;color:var(--text-muted);padding:6rem 2rem;font-size:14px}.qh-state.error{color:var(--danger)}.qh-back{color:var(--text-secondary);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);align-items:center;gap:6px;margin-bottom:1.5rem;padding:6px 12px;font-size:13px;font-weight:500;transition:border-color .15s,color .15s;display:inline-flex}.qh-back:hover{border-color:var(--accent);color:var(--accent)}.qh-header{flex-direction:column;gap:.5rem;margin-bottom:2rem;display:flex}.qh-header-top{align-items:center;gap:1rem;display:flex}.qh-badge{text-transform:uppercase;letter-spacing:.5px;border-radius:99px;padding:4px 10px;font-size:12px;font-weight:600}.qh-badge.passed{background:rgba(var(--success-rgb), .15);color:var(--success)}.qh-badge.failed{background:rgba(var(--danger-rgb), .15);color:var(--danger)}.qh-score{color:var(--text-primary);font-size:1.5rem;font-weight:600}.qh-date{color:var(--text-muted);margin:0;font-size:13px}.qh-list{flex-direction:column;gap:12px;display:flex}.qh-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);flex-direction:column;gap:.75rem;padding:1.25rem;display:flex}.qh-item.correct{border-color:rgba(var(--success-rgb), .3)}.qh-item.wrong{border-color:rgba(var(--danger-rgb), .3)}.qh-item-top{justify-content:space-between;align-items:center;display:flex}.qh-item-num{color:var(--text-muted);font-size:12px;font-weight:600}.qh-item-badge{text-transform:uppercase;letter-spacing:.5px;border-radius:99px;padding:3px 8px;font-size:11px;font-weight:600}.qh-item-badge.correct{background:rgba(var(--success-rgb), .15);color:var(--success)}.qh-item-badge.wrong{background:rgba(var(--danger-rgb), .15);color:var(--danger)}.qh-item-question{color:var(--text-primary);margin:0;font-size:14px;font-weight:500;line-height:1.5}.qh-item-image{object-fit:contain;border-radius:var(--radius-md);max-width:100%;max-height:200px}.qh-item-answers{flex-direction:column;gap:.3rem;display:flex}.qh-item-answer-row{align-items:center;gap:.5rem;margin:0;font-size:13px;display:flex}.qh-item-answer-label{color:var(--text-muted)}.qh-item-answer-val{font-weight:600}.qh-item-answer-val.correct{color:var(--success)}.qh-item-answer-val.wrong{color:var(--danger)}.qh-explanation{border-radius:var(--radius-md);border:1px solid #0000;padding:.75rem 1rem}.qh-explanation.correct{background:rgba(var(--success-rgb), .08);border-color:rgba(var(--success-rgb), .3)}.qh-explanation.wrong{background:rgba(var(--danger-rgb), .08);border-color:rgba(var(--danger-rgb), .3)}.qh-explanation-text{color:var(--text-secondary);margin:0;font-size:13px;line-height:1.6}@media (width<=600px){.qh-page{padding:calc(var(--navbar-height) + .5rem) 1rem 3rem}}