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#667eea4d;outline:none}.remove-group-btn{background-color:#ff6b6b;border:none;border-radius:6px;color:#fff;cursor:pointer;font-weight:600;padding:.6rem 1.2rem;transition:all .3s ease;white-space:nowrap}.remove-group-btn:hover{background-color:#ff5252;box-shadow:0 4px 12px #ff6b6b4d;transform:translateY(-2px)}.students-section{margin-top:1rem}.students-section label{color:#666;display:block;font-size:.95rem;font-weight:600;margin-bottom:.8rem}.student-input-row{align-items:center;display:flex;gap:.5rem;margin-bottom:.8rem}.student-name-input{border:1px solid #e0e0e0;border-radius:6px;box-sizing:border-box;flex:1 1;font-size:.95rem;padding:.7rem;transition:all .3s ease}.student-name-input:focus{border-color:#667eea;box-shadow:0 0 6px #667eea33;outline:none}.remove-student-btn{background-color:#ff6b6b;border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:1rem;min-width:35px;padding:.5rem .8rem;transition:all .3s ease}.remove-student-btn:hover{background-color:#ff5252;transform:scale(1.1)}.add-student-btn{background-color:#667eea;border:none;border-radius:6px;color:#fff;cursor:pointer;font-size:.95rem;font-weight:600;margin-top:.8rem;padding:.6rem 1rem;transition:all .3s ease}.add-student-btn:hover{background-color:#5568d3;box-shadow:0 4px 12px #667eea4d;transform:translateY(-2px)}.add-group-btn{background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:1rem;font-weight:700;margin-top:1rem;padding:1rem;transition:all .3s ease;width:100%}.add-group-btn:hover{box-shadow:0 6px 20px #667eea4d;transform:translateY(-3px)}.teacher-registration-footer{background-color:#f9f9f9;border-radius:0 0 15px 15px;border-top:2px solid #f0f0f0;display:flex;gap:1rem;justify-content:flex-end;padding:2rem}.popup-btn,.popup-btn2{border:none;border-radius:6px;cursor:pointer;font-size:1rem;font-weight:700;padding:.8rem 1.5rem;transition:all .3s ease}.popup-btn{background-color:#e0e0e0;color:#333}.popup-btn:hover{background-color:#d0d0d0;transform:translateY(-2px)}.popup-btn2{background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 4px 15px #667eea4d;color:#fff}.popup-btn2:hover:not(:disabled){box-shadow:0 6px 20px #667eea66;transform:translateY(-2px)}.popup-btn2:disabled{cursor:not-allowed;opacity:.6}.error{border-left:4px solid #ff6b6b;border-radius:4px;font-weight:600;padding:1rem}.error,.error-dengare{background-color:#fff5f5;color:#c92a2a}.error-dengare{border-left-color:#ff6b6b}.teacher-registration-container::-webkit-scrollbar{width:8px}.teacher-registration-container::-webkit-scrollbar-track{background:#f1f1f1;border-radius:10px}.teacher-registration-container::-webkit-scrollbar-thumb{background:#667eea;border-radius:10px}.teacher-registration-container::-webkit-scrollbar-thumb:hover{background:#5568d3}@media (max-width:768px){.teacher-registration-modal{padding:1rem}.teacher-registration-container{max-height:90vh;max-width:100%}.teacher-registration-header{padding:1.5rem}.teacher-registration-header h2{font-size:1.5rem}.teacher-registration-body{padding:1.5rem}.group-header{align-items:stretch;flex-direction:column}.group-name-input,.remove-group-btn{width:100%}.teacher-registration-footer{flex-direction:column}.popup-btn,.popup-btn2{width:100%}}.h-100vh{height:100vh}.d-flex{display:flex}.d-block{display:block}.d-none{display:none}.flex-wrap{flex-wrap:wrap}.flex-direction-column{flex-direction:column}.justify-content-center{justify-content:center}.justify-content-space-around{justify-content:space-around}.justify-content-space-between{justify-content:space-between}.justify-content-flex-start{justify-content:flex-start}.align-items-center{align-items:center}.text-center{text-align:center}.text-color{color:#0f172a;color:var(--text,#0f172a)}.text-error{color:#dc2626!important;color:var(--error,#dc2626)!important}.text-red{color:#dc2626;color:var(--error,#dc2626)}.text-purple{color:#2563eb;color:var(--sat-blue,#2563eb)}.text-gray{color:#64748b;color:var(--text-muted,#64748b)}.error-line{font-size:15px;margin-top:-1rem}.error,.error-line{color:#dc2626;color:var(--error,#dc2626);font-weight:500}.error{background-color:#fef2f2;background-color:var(--error-bg,#fef2f2);border:1px solid #fecaca;border-radius:10px;border-radius:var(--radius,10px);display:block;font-size:14px;margin-bottom:1rem;max-width:380px;padding:.75rem 1rem;text-align:center;width:100%}.error-dengare{margin-bottom:0;margin-top:.5rem;max-width:100%;width:100%}.form-body-list .ql-editor,.question-form-body .ql-editor{border:none;box-shadow:none;color:inherit;font-family:inherit;font-size:inherit;line-height:inherit;overflow:visible;padding:0}.input-form{background:#fff;background:var(--surface,#fff);border:1px solid #cbd5e1;border:1px solid var(--border,#cbd5e1);border-radius:10px;border-radius:var(--radius,10px);color:#0f172a;color:var(--text,#0f172a);font-family:Inter,sans-serif;font-family:var(--font-body,"Inter",sans-serif);font-size:15px;margin-top:1.5rem;max-width:340px;outline:none;padding:10px 14px;transition:border-color .15s ease;width:100%}.input-form:focus{border-color:#2563eb;border-color:var(--sat-blue,#2563eb);box-shadow:0 0 0 3px #2563eb1a}.button{background-color:#1b3a6b;background-color:var(--sat-navy,#1b3a6b);border:none;border-radius:10px;border-radius:var(--radius,10px);color:#fff;cursor:pointer;font-family:Inter,sans-serif;font-family:var(--font-body,"Inter",sans-serif);font-size:.95rem;font-weight:600;letter-spacing:.01em;padding:.55rem 1.2rem;transition:background-color .15s ease,transform .1s ease}.button:hover{background-color:#2563eb;background-color:var(--sat-blue,#2563eb)}.button:active{transform:scale(.98)}.popup-btn,.popup-btn2{margin:0 .3rem}.popup-btn2{background-color:#2563eb;background-color:var(--sat-blue,#2563eb)}.popup-btn2:hover{background-color:#1d4ed8;background-color:var(--sat-hover-blue,#1d4ed8)}.btn-red{background-color:#dc2626!important;background-color:var(--error,#dc2626)!important;color:#fff!important}.loader{animation:rotation .8s linear infinite;border:2.5px solid #ffffff80;border-bottom-color:#fff;border-radius:50%;box-sizing:border-box;display:inline-block;height:18px;vertical-align:middle;width:18px}@keyframes rotation{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.error-container,.loading-container{align-items:center;display:flex;justify-content:center;padding-top:12rem}.alert{background-color:#16a34a;background-color:var(--success,#16a34a);border-radius:10px;border-radius:var(--radius,10px);box-shadow:var(--shadow-lg);color:#fff;font-size:15px;font-weight:500;left:50%;max-width:90vw;padding:.85rem 1rem;position:fixed;text-align:center;top:-200px;transform:translateX(-50%);transition:top .4s cubic-bezier(.34,1.56,.64,1);width:320px;z-index:99999}.alert-active{top:80px!important}.skeleton{animation:skeleton-loading 1.2s ease-in-out infinite alternate;border-radius:6px;border-radius:var(--radius-sm,6px)}@keyframes skeleton-loading{0%{background-color:#dce0e5}to{background-color:#f3f5f6}}.keyboard-container{grid-gap:6px;background-color:#fff;background-color:var(--surface,#fff);border-radius:10px;border-radius:var(--radius,10px);box-shadow:var(--shadow);display:grid;gap:6px;grid-template-columns:repeat(3,1fr);margin-top:8px;padding:8px;position:relative;width:100%;z-index:1000}.digit-button,.keyboard-container{border:1px solid #e2e8f0;border:1px solid var(--border-light,#e2e8f0)}.digit-button{align-items:center;aspect-ratio:1;background-color:#f8fafc;background-color:var(--surface-muted,#f8fafc);border-radius:6px;border-radius:var(--radius-sm,6px);color:#0f172a;color:var(--text,#0f172a);cursor:pointer;display:flex;font-family:Inter,sans-serif;font-family:var(--font-body,"Inter",sans-serif);font-size:1.4rem;font-weight:600;justify-content:center;margin:0!important;min-height:46px;padding:0!important;transition:background-color .1s ease,transform .1s ease;width:100%!important}.digit-button.digit-num:hover{background-color:#eff6ff;background-color:var(--sat-light-blue,#eff6ff);border-color:#2563eb;border-color:var(--sat-blue,#2563eb);color:#2563eb;color:var(--sat-blue,#2563eb)}.digit-button.digit-action{background-color:#f1f5f9;background-color:var(--surface-muted,#f1f5f9);color:#64748b;color:var(--text-muted,#64748b)}.digit-button.digit-action:hover{background-color:#fee2e2;color:#dc2626;color:var(--error,#dc2626)}.digit-button:active{transform:scale(.94)}.toggle-btn{aspect-ratio:1;background-color:#1b3a6b;background-color:var(--sat-navy,#1b3a6b);border:1px solid #e2e8f0;border:1px solid var(--border-light,#e2e8f0);border-radius:6px;border-radius:var(--radius-sm,6px);color:#fff;cursor:pointer;font-size:1rem;font-weight:600;margin:0!important;min-height:46px;padding:0!important;transition:all .15s ease;width:100%!important}.toggle-btn:hover{background-color:#2563eb;background-color:var(--sat-blue,#2563eb)}.keyboard-next-btn{align-items:center;aspect-ratio:auto!important;background-color:#2563eb!important;background-color:var(--sat-blue,#2563eb)!important;border:none;border-radius:6px;border-radius:var(--radius-sm,6px);color:#fff!important;cursor:pointer;display:flex;font-size:1rem;font-weight:600;grid-column:span 3;justify-content:center;margin-top:4px;min-height:46px;padding:10px!important;width:100%!important}.keyboard-next-btn:hover{background-color:#1d4ed8!important;background-color:var(--sat-hover-blue,#1d4ed8)!important}.input-style{background:#fff;background:var(--surface,#fff);border:1px solid #cbd5e1;border:1px solid var(--border,#cbd5e1);border-radius:10px;border-radius:var(--radius,10px);box-sizing:border-box;color:#0f172a;color:var(--text,#0f172a);cursor:pointer;font-family:Inter,sans-serif;font-family:var(--font-body,"Inter",sans-serif);font-size:16px;outline:none;padding:10px 14px;transition:border-color .15s ease,box-shadow .15s ease;width:100%}.input-style:focus{border-color:#2563eb;border-color:var(--sat-blue,#2563eb);box-shadow:0 0 0 3px #2563eb1a}@media only screen and (max-width:600px){.digit-button{font-size:1.25rem;min-height:42px}.keyboard-container{gap:5px;padding:6px}}@media only screen and (max-width:360px){.digit-button{font-size:1.1rem;min-height:38px}}.nav-mobile{background:#0000!important;border:none!important;bottom:15px!important;box-shadow:none!important;display:none;position:fixed!important;top:auto!important;width:100%;z-index:99999999}.nav-mobile-container{align-items:center;background-color:#fff;border-radius:20px;box-shadow:0 4px 8px 0 #0003,0 6px 20px 0 #00000030;display:flex;justify-content:space-around;margin:auto;padding:.8rem .5rem;width:96%}.nav-item{align-items:center;border-radius:12px;cursor:pointer;display:flex;flex-direction:column;gap:.25rem;justify-content:center;min-width:60px;padding:.5rem .4rem;text-decoration:none;transition:all .2s ease}.nav-item i{font-size:24px}.nav-item i,.nav-label{color:#a4a2a2;transition:all .2s ease}.nav-label{font-size:11px;font-weight:600;margin:0;text-align:center}.nav-item.active{background-color:#5d17eb}.nav-item.active .nav-label,.nav-item.active i{color:#fff}.nav-item:hover{background-color:#f0f0f0}.nav-item.active:hover{background-color:#5d17eb}@media only screen and (max-width:768px){.nav-mobile{display:block!important}}@media only screen and (max-width:600px){.nav-item{min-width:50px;padding:.4rem .3rem}.nav-item i{font-size:22px}.nav-label{font-size:10px}}@media only screen and (max-width:400px){.nav-item{gap:.15rem;min-width:45px}.nav-item i{font-size:20px}.nav-label{font-size:9px}.nav-mobile-container{padding:.6rem .3rem}}.questionType{background:linear-gradient(135deg,#0f172a,#1e293b);color:#f8fafc;font-family:Inter,sans-serif;font-family:var(--font-body,"Inter",sans-serif);overflow:hidden;padding:6rem 2rem;position:relative}.questionType-container{margin:0 auto;max-width:1200px;position:relative;z-index:2}.feature-header{margin:0 auto 3.5rem;max-width:800px;text-align:center}.feature-badge{align-items:center;background:#3b82f626;border:1px solid #3b82f64d;border-radius:30px;color:#60a5fa;display:inline-flex;font-size:.9rem;font-weight:600;gap:.5rem;letter-spacing:.05em;margin-bottom:1.25rem;padding:.5rem 1.25rem;text-transform:uppercase}.feature-title{-webkit-text-fill-color:#0000;background:linear-gradient(90deg,#fff 0,#93c5fd);-webkit-background-clip:text;font-size:2.75rem;font-weight:800;letter-spacing:-.02em;line-height:1.2;margin:0 0 1.25rem}.feature-subtitle{color:#94a3b8;font-size:1.15rem;line-height:1.6;margin:0}.teacher-features-grid{grid-gap:2.5rem;display:grid;gap:2.5rem;grid-template-columns:repeat(3,1fr);margin-bottom:3.5rem}.teacher-feature-card{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#1e293b99;border:1px solid #ffffff1a;border-radius:24px;box-shadow:0 10px 30px #0003;padding:3rem 2.2rem;transition:all .3s ease}.teacher-feature-card:hover{border-color:#3b82f666;box-shadow:0 20px 40px #0000004d,0 0 20px #3b82f626;transform:translateY(-8px)}.tf-icon-wrapper{align-items:center;border-radius:20px;box-shadow:0 8px 16px #00000026;color:#fff;display:flex;height:64px;justify-content:center;margin-bottom:1.75rem;width:64px}.blue-bg{background:linear-gradient(135deg,#2563eb,#1d4ed8)}.purple-bg{background:linear-gradient(135deg,#8b5cf6,#6d28d9)}.emerald-bg{background:linear-gradient(135deg,#10b981,#047857)}.teacher-feature-card h3{color:#f8fafc;font-size:1.4rem;font-weight:700;margin:0 0 1rem}.teacher-feature-card p{color:#94a3b8;font-size:1rem;line-height:1.6;margin:0}.feature-cta-row{display:flex;justify-content:center;margin-bottom:5rem}.explore-practice-btn{align-items:center;background:linear-gradient(135deg,#2563eb,#1d4ed8);border-radius:30px;box-shadow:0 10px 25px #2563eb66;color:#fff;display:inline-flex;font-size:1.15rem;font-weight:600;gap:.75rem;padding:1rem 2.5rem;text-decoration:none;transition:all .2s ease}.explore-practice-btn:hover{background:linear-gradient(135deg,#3b82f6,#2563eb);box-shadow:0 15px 35px #2563eb99;transform:translateY(-2px)}.section-divider{background:linear-gradient(90deg,#0000,#ffffff26,#0000);height:1px;margin:5rem 0}.analytics-showcase-grid{grid-gap:3rem;display:grid;gap:3rem;grid-template-columns:repeat(2,1fr);margin-bottom:4rem}.analytics-card{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#1e293b80;border:1px solid #ffffff1a;border-radius:24px;box-shadow:0 10px 30px #0003;padding:3rem 2.5rem}.analytics-card-header{align-items:center;display:flex;gap:1rem;margin-bottom:.75rem}.ac-icon{color:#60a5fa}.analytics-card-header h3{color:#f8fafc;font-size:1.5rem;font-weight:700;margin:0}.ac-desc{color:#94a3b8;font-size:1rem;margin:0 0 2.5rem}.chart-bar-container{display:flex;flex-direction:column;gap:1.75rem}.chart-bar-item{display:flex;flex-direction:column;gap:.5rem}.chart-label{color:#e2e8f0;display:flex;font-size:1rem;font-weight:600;justify-content:space-between}.progress-track{background:#0f172a99;border:1px solid #ffffff0d;border-radius:10px;height:12px;overflow:hidden}.progress-fill{border-radius:10px;height:100%;transition:width 1s ease-out}.base-fill{background:linear-gradient(90deg,#94a3b8,#64748b)}.mid-fill{background:linear-gradient(90deg,#60a5fa,#3b82f6)}.elite-fill{background:linear-gradient(90deg,#34d399,#10b981)}.domain-list{gap:1.5rem}.domain-item,.domain-list{display:flex;flex-direction:column}.domain-item{gap:.6rem}.domain-info{align-items:center;display:flex;justify-content:space-between}.domain-info h4{color:#e2e8f0;font-size:1.05rem;font-weight:600;margin:0}.domain-tag{border-radius:20px;font-size:.8rem;font-weight:700;padding:.3rem .8rem}.tag-blue{background:#2563eb33;border:1px solid #2563eb66;color:#93c5fd}.tag-purple{background:#8b5cf633;border:1px solid #8b5cf666;color:#c4b5fd}.tag-emerald{background:#10b98133;border:1px solid #10b98166;color:#6ee7b7}.tag-amber{background:#f59e0b33;border:1px solid #f59e0b66;color:#fcd34d}.mini-track{background:#0f172a99;border-radius:6px;height:6px;overflow:hidden}.mini-fill{border-radius:6px;height:100%}.fill-blue{background:#3b82f6}.fill-purple{background:#8b5cf6}.fill-emerald{background:#10b981}.fill-amber{background:#f59e0b}.high-school-callout{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:linear-gradient(135deg,#2563eb26,#1e3a8a40);border:1px solid #3b82f64d;border-radius:24px;box-shadow:0 10px 30px #00000026;padding:3rem}.callout-content{align-items:center;display:flex;gap:2rem}.callout-icon{color:#60a5fa;flex-shrink:0;height:48px;width:48px}.callout-text h4{color:#f8fafc;font-size:1.4rem;font-weight:700;margin:0 0 .5rem}.callout-text p{color:#94a3b8;font-size:1.05rem;line-height:1.6;margin:0}@media only screen and (max-width:992px){.teacher-features-grid{grid-template-columns:repeat(2,1fr)}.analytics-showcase-grid{grid-template-columns:1fr}.feature-title{font-size:2.25rem}}@media only screen and (max-width:768px){.questionType{padding:4rem 1.5rem}.teacher-features-grid{gap:1.75rem;grid-template-columns:1fr}.callout-content{flex-direction:column;gap:1.5rem;text-align:center}.explore-practice-btn{justify-content:center;width:100%}}@media only screen and (max-width:480px){.feature-title{font-size:1.85rem}.analytics-card,.high-school-callout,.teacher-feature-card{padding:2rem 1.5rem}}.trial-modal-overlay{align-items:center;animation:fadeIn .3s ease;background:#000000b3;bottom:0;display:flex;justify-content:center;left:0;padding:1rem;position:fixed;right:0;top:0;z-index:9999}.trial-modal-container{animation:slideUp .3s ease;background:#fff;border-radius:24px;box-shadow:0 20px 60px #0000004d;max-width:500px;padding:2.5rem;position:relative;width:100%}.trial-modal-close{align-items:center;background:none;border:none;border-radius:50%;color:#999;cursor:pointer;display:flex;font-size:36px;height:40px;justify-content:center;position:absolute;right:1rem;top:1rem;transition:all .2s ease;width:40px}.trial-modal-close:hover{background:#f5f5f5;color:#333}.trial-modal-header{margin-bottom:2rem;text-align:center}.trial-modal-header h2{color:#ff6b6b;font-family:Comic Sans MS,cursive,sans-serif;font-size:28px;font-weight:800;margin:0 0 .5rem}.trial-modal-header p{color:#666;font-size:16px;margin:0}.trial-modal-body{gap:1.5rem}.trial-features,.trial-modal-body{display:flex;flex-direction:column}.trial-features{background:#f8f9fa;border-radius:12px;gap:.75rem;padding:1.5rem}.trial-feature{align-items:center;color:#333;display:flex;font-size:15px;gap:.75rem}.trial-feature-icon{align-items:center;background:#4ecdc4;border-radius:50%;color:#fff;display:flex;flex-shrink:0;font-weight:700;height:24px;justify-content:center;width:24px}.trial-error{background:#ffe6e6;border-radius:8px;color:#d63031;font-size:14px;padding:.75rem 1rem;text-align:center}.trial-input-group{display:flex;flex-direction:column;gap:.5rem}.trial-input-group label{color:#333;font-size:14px;font-weight:600}.trial-input{border:2px solid #e0e0e0;border-radius:12px;font-family:inherit;font-size:16px;outline:none;padding:.875rem 1rem;transition:all .2s ease}.trial-input:focus{border-color:#ff6b6b;box-shadow:0 0 0 3px #ff6b6b1a}.trial-submit-btn{background:linear-gradient(135deg,#ff6b6b,#4ecdc4);border:none;border-radius:12px;box-shadow:0 4px 15px #ff6b6b4d;color:#fff;cursor:pointer;font-family:Comic Sans MS,cursive,sans-serif;font-size:18px;font-weight:700;padding:1rem 2rem;transition:all .3s ease}.trial-submit-btn:hover{box-shadow:0 6px 20px #ff6b6b66;transform:translateY(-2px)}.trial-submit-btn:active{transform:translateY(0)}.trial-note{color:#999;font-size:13px;margin:0;text-align:center}@media only screen and (max-width:600px){.trial-modal-container{padding:2rem 1.5rem}.trial-modal-header h2{font-size:24px}.trial-submit-btn{font-size:16px}}.tutorial-modal-overlay{align-items:center;animation:fadeIn .3s ease;background:#000000bf;bottom:0;display:flex;justify-content:center;left:0;padding:1rem;position:fixed;right:0;top:0;z-index:9999}.tutorial-modal-container{animation:slideUp .3s ease;background:#fff;border-radius:20px;box-shadow:0 20px 60px #0000004d;max-height:90vh;max-width:800px;overflow-y:auto;padding:2rem;position:relative;width:100%}@keyframes slideUp{0%{opacity:0;transform:translateY(50px)}to{opacity:1;transform:translateY(0)}}.tutorial-modal-close{align-items:center;background:#f5f5f5;border:none;border-radius:50%;color:#666;cursor:pointer;display:flex;height:40px;justify-content:center;position:absolute;right:1rem;top:1rem;transition:all .2s ease;width:40px;z-index:1}.tutorial-modal-close:hover{background:#e0e0e0;color:#333;transform:rotate(90deg)}.tutorial-modal-header{margin-bottom:1.5rem;padding-right:40px;text-align:center}.tutorial-modal-header h2{color:#333;font-size:24px;font-weight:700;margin:0 0 .5rem}.tutorial-modal-header p{color:#666;font-size:15px;margin:0}.tutorial-modal-body{display:flex;flex-direction:column;gap:1.5rem}.video-wrapper{background:#000;border-radius:12px;box-shadow:0 4px 20px #00000026;overflow:hidden;width:100%}.tutorial-video{display:block;height:auto;max-height:450px;width:100%}.video-fallback{color:#fff;font-size:14px;padding:2rem;text-align:center}.tutorial-tips{background:linear-gradient(135deg,#f8f9fa,#e9ecef);border-left:4px solid #4ecdc4;border-radius:12px;padding:1.25rem}.tip-title{color:#333;font-size:16px;font-weight:700;margin:0 0 .75rem}.tips-list{list-style:none;margin:0;padding-left:1.5rem}.tips-list li{color:#555;font-size:14px;margin-bottom:.5rem;padding-left:.5rem;position:relative}.tips-list li:last-child{margin-bottom:0}.tips-list li:before{color:#4ecdc4;content:"✓";font-size:16px;font-weight:700;left:-1.25rem;position:absolute}@media only screen and (max-width:768px){.tutorial-modal-container{max-height:95vh;padding:1.5rem}.tutorial-modal-header{padding-right:30px}.tutorial-modal-header h2{font-size:20px}.tutorial-modal-header p{font-size:14px}.tutorial-video{max-height:300px}.tutorial-tips{padding:1rem}.tip-title{font-size:15px}.tips-list li{font-size:13px}}@media only screen and (max-width:480px){.tutorial-modal-container{border-radius:16px;padding:1.25rem}.tutorial-modal-header h2{font-size:18px}.tutorial-video{max-height:250px}}.modern-home-wrapper{background-color:#0b1120;color:#f8fafc;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;min-height:100vh;overflow-x:hidden}.home{background:#0000;position:relative;z-index:10}.floating-help-btn{align-items:center;background:linear-gradient(135deg,#2563eb,#1d4ed8);border:1.5px solid #ffffff40;border-radius:50px;bottom:30px;box-shadow:0 10px 30px #2563eb73;display:flex;font-size:14.5px;font-weight:700;padding:12px 22px;right:30px;transition:all .3s cubic-bezier(.16,1,.3,1);z-index:99999}.floating-help-btn:hover{box-shadow:0 14px 40px #2563eba6;transform:translateY(-4px) scale(1.04)}.sat-hero-section-premium{background:radial-gradient(circle at 50% 20%,#2563eb2e 0,#0b1120f2 75%),#0b1120;overflow:hidden;padding:6rem 2rem 5rem;position:relative}.hero-glow-backdrop{background:radial-gradient(circle,#6366f138 0,#2563eb0d 60%,#0000 80%);filter:blur(80px);height:400px;left:50%;pointer-events:none;position:absolute;top:10%;transform:translateX(-50%);width:800px;z-index:1}.sat-hero-container{grid-gap:3.5rem;align-items:center;display:grid;gap:3.5rem;grid-template-columns:1.15fr .85fr;margin:0 auto;max-width:1240px;position:relative;z-index:2}.hero-left-content{align-items:flex-start;display:flex;flex-direction:column;text-align:left}.hero-announcement-pill{align-items:center;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#2563eb1f;border:1px solid #60a5fa59;border-radius:100px;color:#93c5fd;display:inline-flex;font-size:13px;font-weight:700;gap:8px;letter-spacing:.03em;margin-bottom:1.5rem;padding:7px 16px}.sparkle-icon{animation:pulse-sparkle 2s ease-in-out infinite;color:#60a5fa}@keyframes pulse-sparkle{0%,to{opacity:.9;transform:scale(1)}50%{opacity:1;transform:scale(1.2)}}.hero-main-title{color:#fff;font-size:3.4rem;font-weight:900;letter-spacing:-.03em;line-height:1.15;margin:0 0 1.25rem}.title-gradient{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#60a5fa,#a78bfa 50%,#f472b6);-webkit-background-clip:text}.hero-lead-description{color:#94a3b8;font-size:1.18rem;line-height:1.65;margin:0 0 2.2rem;max-width:580px}.hero-cta-button-group{align-items:center;display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:2.2rem}.hero-primary-cta{align-items:center;background:linear-gradient(135deg,#2563eb,#4f46e5);border:1px solid #fff3;border-radius:12px;box-shadow:0 10px 28px #2563eb73;color:#fff;display:inline-flex;font-size:15.5px;font-weight:700;gap:10px;padding:14px 28px;text-decoration:none;transition:all .25s ease}.hero-primary-cta:hover{box-shadow:0 16px 36px #2563eba6;color:#fff;transform:translateY(-3px)}.hero-secondary-cta{align-items:center;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffff0d;border:1px solid #ffffff26;border-radius:12px;color:#f1f5f9;cursor:pointer;display:inline-flex;font-size:15px;font-weight:600;gap:9px;padding:14px 24px;transition:all .25s ease}.hero-secondary-cta:hover{background:#ffffff1f;border-color:#ffffff4d;transform:translateY(-2px)}.hero-trust-badges{align-items:center;display:flex;flex-wrap:wrap;gap:1.5rem}.trust-badge-item{align-items:center;color:#cbd5e1;display:flex;font-size:13.5px;font-weight:600;gap:7px}.hero-right-demo{position:relative;z-index:2}.live-demo-card{background:#0f172a;border:1.5px solid #60a5fa40;border-radius:20px;box-shadow:0 20px 50px #0000008c,0 0 35px #2563eb26;overflow:hidden;transition:all .3s ease}.live-demo-card:hover{border-color:#60a5fa73;box-shadow:0 24px 60px #000000a6,0 0 45px #2563eb40}.demo-card-header{align-items:center;background:#1e293b;border-bottom:1px solid #ffffff14;display:flex;justify-content:space-between;padding:12px 18px}.demo-header-pill{align-items:center;background:#0f172a;border:1px solid #334155;border-radius:30px;color:#38bdf8;display:flex;font-size:12px;font-weight:700;gap:6px;padding:4px 12px}.demo-header-tools{align-items:center;display:flex;gap:8px}.demo-calc-tag{align-items:center;color:#94a3b8;display:flex;font-size:12px;font-weight:600;gap:4px}.demo-tag-live{color:#34d399;font-size:11px;font-weight:800;letter-spacing:.06em}.demo-card-body{padding:24px;text-align:left}.demo-question-number{color:#64748b;font-size:12.5px;font-weight:700;letter-spacing:.05em;margin-bottom:8px;text-transform:uppercase}.demo-question-text{color:#f8fafc;font-size:16px;font-weight:700;line-height:1.5;margin:0 0 18px}.demo-options-list{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}.demo-option-btn{align-items:center;background:#1e293b;border:1px solid #334155;border-radius:10px;color:#f1f5f9;cursor:pointer;display:flex;font-size:14px;font-weight:600;padding:11px 15px;text-align:left;transition:all .2s ease;width:100%}.demo-option-btn:hover{background:#334155;border-color:#60a5fa;transform:translateX(3px)}.demo-option-btn.correct{background:#10b98126;border-color:#10b981;color:#34d399}.demo-option-btn.correct-highlight{background:#10b98114;border-color:#10b981}.demo-option-btn.incorrect{background:#ef444426;border-color:#ef4444;color:#f87171}.opt-letter{align-items:center;background:#ffffff1a;border-radius:50%;display:inline-flex;font-size:12px;font-weight:800;height:24px;justify-content:center;margin-right:12px;width:24px}.opt-text{flex:1 1}.opt-feedback{font-size:12px;font-weight:800;margin-left:10px}.demo-explanation-box{animation:fadeIn .3s ease;background:#1e293bb3;border:1px solid #334155;border-radius:10px;color:#cbd5e1;font-size:13px;line-height:1.5;padding:12px 14px}.demo-hint-text{color:#64748b;font-size:12.5px;font-weight:600;text-align:center}.sat-metrics-ribbon{background:#0d1527;border-bottom:1px solid #ffffff0f;border-top:1px solid #ffffff0f;padding:2.5rem 1.5rem}.metrics-grid-container{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(4,1fr);margin:0 auto;max-width:1200px;text-align:center}.metric-item{align-items:center;display:flex;flex-direction:column}.metric-number{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#fff,#93c5fd);-webkit-background-clip:text;color:#fff;font-size:2.4rem;font-weight:900;letter-spacing:-.02em}.metric-label{font-size:14px;font-weight:600;margin-top:4px}.sat-features-section-premium{background:#0b1120;padding:6rem 2rem}.features-inner-container{margin:0 auto;max-width:1200px}.section-header-center{margin:0 auto 3.5rem;max-width:700px;text-align:center}.section-pill{background:#6366f11f;border:1px solid #6366f14d;border-radius:20px;color:#818cf8;display:inline-block;font-size:12px;font-weight:800;letter-spacing:.05em;margin-bottom:12px;padding:5px 14px;text-transform:uppercase}.section-title{color:#fff;font-size:2.4rem;font-weight:800;letter-spacing:-.02em;line-height:1.25;margin:0 0 14px}.section-subtitle{color:#94a3b8;font-size:1.05rem;line-height:1.6;margin:0}.premium-features-grid{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(2,1fr)}.feature-glass-card{align-items:flex-start;background:#0f172a;border:1px solid #1e293b;border-radius:18px;display:flex;flex-direction:column;padding:2.2rem;text-align:left;transition:all .3s ease}.feature-glass-card:hover{border-color:#60a5fa66;box-shadow:0 16px 36px #00000073;transform:translateY(-5px)}.feature-icon-box{align-items:center;border-radius:14px;display:flex;height:56px;justify-content:center;margin-bottom:20px;width:56px}.icon-blue{background:#2563eb26;border:1px solid #38bdf840;color:#38bdf8}.icon-purple{background:#9333ea26;border:1px solid #c084fc40;color:#c084fc}.icon-emerald{background:#10b98126;border:1px solid #34d39940;color:#34d399}.icon-indigo{background:#6366f126;border:1px solid #818cf840;color:#818cf8}.feature-glass-card h3{color:#fff;font-size:1.35rem;font-weight:800;margin:0 0 10px}.feature-glass-card p{color:#94a3b8;font-size:.95rem;line-height:1.6;margin:0 0 18px}.feature-bullet-list{display:flex;flex-direction:column;gap:8px;list-style:none;margin:0;padding:0}.feature-bullet-list li{align-items:center;color:#cbd5e1;display:flex;font-size:13.5px;font-weight:600;gap:8px}.feature-bullet-list li svg{color:#34d399;flex-shrink:0}.sat-faq-section{background:#0d1527;border-top:1px solid #ffffff0f;padding:5rem 2rem}.faq-container{margin:0 auto;max-width:800px}.faq-accordion-list{display:flex;flex-direction:column;gap:12px}.faq-card{background:#0f172a;border:1px solid #1e293b;border-radius:14px;overflow:hidden;transition:all .2s ease}.faq-card.open{background:#131c31;border-color:#60a5fa66}.faq-question-btn{align-items:center;background:#0000;border:none;color:#f8fafc;cursor:pointer;display:flex;font-size:16px;font-weight:700;justify-content:space-between;padding:18px 22px;text-align:left;width:100%}.faq-chevron{color:#94a3b8;flex-shrink:0;transition:transform .25s ease}.faq-chevron.rotated{color:#60a5fa;transform:rotate(180deg)}.faq-answer-panel{animation:fadeIn .25s ease;padding:0 22px 18px}.faq-answer-panel p{color:#94a3b8;font-size:14.5px;line-height:1.6;margin:0}.modern-executive-footer{background:#080d1a;border-top:1px solid #1e293b;padding:4.5rem 2rem 2.5rem}.footer-inner-container{margin:0 auto;max-width:1200px}.footer-top-grid{grid-gap:3rem;display:grid;gap:3rem;grid-template-columns:1.6fr 1fr 1fr 1fr;margin-bottom:3.5rem}.footer-brand-logo{align-items:center;color:#fff;display:flex;font-size:1.35rem;font-weight:900;gap:10px;margin-bottom:14px}.footer-brand-tagline{color:#64748b;font-size:14px;line-height:1.6;margin:0;max-width:320px}.footer-links-col h4{color:#f1f5f9;font-size:14px;font-weight:800;letter-spacing:.05em;margin:0 0 16px;text-transform:uppercase}.footer-links-col ul{display:flex;flex-direction:column;gap:10px;list-style:none;margin:0;padding:0}.footer-links-col ul li a{color:#94a3b8;font-size:14px;font-weight:500;text-decoration:none;transition:color .2s ease}.footer-links-col ul li a:hover{color:#60a5fa}.footer-bottom-bar{align-items:center;border-top:1px solid #1e293b;display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;padding-top:2rem}.footer-bottom-bar p{color:#64748b;font-size:13.5px;margin:0}.footer-bottom-badges span{color:#475569;font-size:12.5px}@media (max-width:1024px){.sat-hero-container{gap:2.5rem;grid-template-columns:1fr;text-align:center}.hero-left-content{align-items:center;text-align:center}.hero-main-title{font-size:2.8rem}.hero-cta-button-group,.hero-trust-badges{justify-content:center}.metrics-grid-container{gap:1.5rem;grid-template-columns:repeat(2,1fr)}.premium-features-grid{grid-template-columns:1fr}.footer-top-grid{gap:2rem;grid-template-columns:1fr 1fr}}@media (max-width:640px){.hero-main-title{font-size:2.2rem}.footer-top-grid,.metrics-grid-container{grid-template-columns:1fr}.sat-hero-section-premium{padding:4rem 1.25rem 3rem}}.executive-login-wrapper{align-items:center;background-color:#0b1120;box-sizing:border-box;color:#f8fafc;display:flex;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;justify-content:center;min-height:100vh;overflow:hidden;padding:40px 20px;position:relative;width:100vw}.login-ambient-orb{border-radius:50%;filter:blur(120px);height:500px;opacity:.35;pointer-events:none;position:absolute;width:500px}.orb-primary{background:radial-gradient(circle,#2563eb 0,#2563eb00 70%);left:20%;top:-100px}.orb-purple{background:radial-gradient(circle,#7c3aed 0,#7c3aed00 70%);bottom:-100px;right:20%}.login-toast-alert{align-items:center;background:#0f172a;border:1px solid #34d39966;border-radius:50px;box-shadow:0 10px 30px #00000080,0 0 20px #10b98133;color:#6ee7b7;display:flex;font-size:13px;font-weight:700;gap:8px;opacity:0;padding:10px 20px;position:fixed;top:24px;transform:translateY(-80px);transition:all .3s cubic-bezier(.16,1,.3,1);z-index:1000}.login-toast-alert.active{opacity:1;transform:translateY(0)}.executive-login-card{backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);background:#0f172ad1;border:1px solid #ffffff1f;border-radius:24px;box-shadow:0 25px 50px -12px #000000b3,0 0 30px #2563eb1a;box-sizing:border-box;max-width:440px;padding:38px 36px;position:relative;width:100%;z-index:10}.login-brand-header{margin-bottom:28px;text-align:center}.login-brand-pill{align-items:center;background:#ffffff0f;border:1px solid #ffffff1f;border-radius:50px;display:inline-flex;gap:8px;margin-bottom:18px;padding:5px 14px 5px 8px;text-decoration:none;transition:all .2s ease}.login-brand-pill:hover{background:#ffffff1f;transform:translateY(-2px)}.login-brand-icon img{display:block;height:20px;object-fit:contain;width:20px}.login-brand-name{color:#fff;font-size:13.5px;font-weight:800}.login-brand-badge{background:#38bdf826;border:1px solid #38bdf84d;border-radius:4px;color:#38bdf8;font-size:9.5px;font-weight:800;padding:1px 5px}.login-brand-header h2{color:#fff;font-size:24px;font-weight:850;letter-spacing:-.02em;margin:0 0 6px}.login-brand-header p{color:#94a3b8;font-size:13.5px;line-height:1.5;margin:0}.login-error-banner{align-items:center;background:#ef444426;border:1px solid #ef444459;border-radius:12px;color:#fca5a5;display:flex;font-size:12.5px;font-weight:600;gap:8px;margin-bottom:20px;padding:10px 14px}.login-interactive-form{display:flex;flex-direction:column;gap:18px}.login-input-group{display:flex;flex-direction:column;gap:7px}.login-input-group label{color:#cbd5e1;font-size:12.5px;font-weight:700}.password-label-row{align-items:center;display:flex;justify-content:space-between}.forgot-pass-link{color:#60a5fa;font-size:12px;font-weight:650;text-decoration:none;transition:color .2s ease}.forgot-pass-link:hover{color:#93c5fd;text-decoration:underline}.input-field-wrapper{align-items:center;display:flex;position:relative}.field-icon{color:#64748b;left:14px;pointer-events:none;position:absolute}.input-field-wrapper input{background:#1e293b;border:1px solid #334155;border-radius:12px;box-sizing:border-box;color:#fff;font-size:14px;outline:none;padding:12px 14px 12px 42px;transition:all .2s ease;width:100%}.input-field-wrapper 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solid #ffffff4d;border-radius:50%;border-top-color:#fff;height:18px;width:18px}.login-card-footer{margin-top:24px;text-align:center}.login-card-footer p{color:#64748b;font-size:11.5px;margin:0}.register{background:linear-gradient(135deg,#0f172a,#1e293b);font-family:Inter,sans-serif;font-family:var(--font-body,"Inter",sans-serif);min-height:100vh;padding:3rem 1rem}.register-card{align-items:center;background:#fff;border-radius:28px;box-shadow:0 20px 50px #0000004d;display:flex;flex-direction:column;max-width:520px;padding:3.5rem 3rem;width:100%}.register-logo{margin-bottom:1.5rem}.register-logo img{filter:drop-shadow(0 2px 6px rgba(37,99,235,.2));width:220px}.register-title{margin-bottom:2rem;text-align:center}.register-title h2{color:#0f172a;font-size:28px;font-weight:800;margin:0 0 .5rem}.school-tag{background:#2563eb1a;border-radius:20px;color:#2563eb;display:inline-block;font-size:15px;margin:0;padding:.4rem 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