.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);font-weight:var(--font-weight-semibold);border-radius:var(--radius-lg);transition:all var(--transition-fast);cursor:pointer;border:none;white-space:nowrap;-webkit-user-select:none;user-select:none;position:relative;overflow:hidden}.btn:active{transform:scale(.98)}.btn:disabled{cursor:not-allowed;opacity:.5}.btn-primary{background:var(--gradient-primary);color:var(--color-text-primary);box-shadow:var(--shadow-md)}.btn-primary:hover:not(:disabled){box-shadow:var(--shadow-lg),var(--shadow-glow);transform:translateY(-2px)}.btn-secondary{background-color:var(--color-bg-secondary);color:var(--color-text-primary);border:2px solid var(--color-bg-tertiary)}.btn-secondary:hover:not(:disabled){border-color:var(--color-primary);background-color:var(--color-bg-tertiary)}.btn-outline{background-color:transparent;color:var(--color-primary);border:2px solid var(--color-primary)}.btn-outline:hover:not(:disabled){background-color:var(--color-primary);color:var(--color-text-primary)}.btn-ghost{background-color:transparent;color:var(--color-text-secondary)}.btn-ghost:hover:not(:disabled){background-color:var(--color-bg-secondary);color:var(--color-text-primary)}.btn-danger{background-color:var(--color-error);color:var(--color-text-primary)}.btn-danger:hover:not(:disabled){background-color:#dc2626;box-shadow:var(--shadow-lg)}.btn-small{padding:var(--space-sm) var(--space-md);font-size:var(--font-size-sm)}.btn-medium{padding:var(--space-md) var(--space-xl);font-size:var(--font-size-base)}.btn-large{padding:var(--space-lg) var(--space-2xl);font-size:var(--font-size-lg)}.btn-full{width:100%}.btn-icon{display:inline-flex;font-size:1.2em}.btn-loading{pointer-events:none}.btn-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}@media(max-width:640px){.btn-medium{padding:var(--space-sm) var(--space-lg);font-size:var(--font-size-sm)}.btn-large{padding:var(--space-md) var(--space-xl);font-size:var(--font-size-base)}}.welcome-container{min-height:100vh;width:100%;background:linear-gradient(135deg,#0f0c29,#302b63,#24243e);position:relative;overflow-x:hidden;scroll-behavior:smooth}.parallax-hero{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;padding:2rem;background:radial-gradient(circle at 50% 50%,rgba(139,92,246,.1) 0%,transparent 50%)}.hero-content{text-align:center;max-width:1000px;position:relative;z-index:10}.hero-logo img{width:150px;height:auto;margin-bottom:2rem;filter:drop-shadow(0 10px 30px rgba(139,92,246,.3));animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.hero-title-massive{font-size:clamp(3rem,8vw,7rem);font-weight:900;line-height:1.1;color:#fff;margin-bottom:1.5rem;letter-spacing:-.02em}.title-highlight{background:linear-gradient(135deg,#667eea,#764ba2,#f093fb);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:inline-block;animation:shimmer 3s ease-in-out infinite}@keyframes shimmer{0%,to{filter:brightness(1)}50%{filter:brightness(1.3)}}.hero-subtitle-large{font-size:clamp(1.1rem,2vw,1.5rem);color:#fffc;max-width:700px;margin:0 auto 3rem;line-height:1.6;font-weight:400}.hero-cta{display:flex;flex-direction:column;align-items:center;gap:1rem}.cta-button-massive{font-size:1.5rem!important;padding:1.5rem 4rem!important;border-radius:60px!important;font-weight:700!important;text-transform:none!important;background:linear-gradient(135deg,#667eea,#764ba2)!important;box-shadow:0 10px 40px #667eea66!important;transition:all .3s ease!important;border:none!important}.cta-button-massive:hover{transform:translateY(-3px) scale(1.05)!important;box-shadow:0 15px 50px #667eea99!important}.hero-time{font-size:1rem;color:#fff9;display:flex;align-items:center;gap:.5rem}.time-icon{font-size:1.2rem}.floating-shapes{position:fixed;top:0;left:0;width:100%;height:100%;z-index:1;pointer-events:none;overflow:hidden}.shape{position:absolute;border-radius:50%;opacity:.15;filter:blur(40px)}.shape-1{width:500px;height:500px;background:linear-gradient(135deg,#667eea,#764ba2);top:-10%;right:-10%;animation:float-shape-1 20s ease-in-out infinite}.shape-2{width:400px;height:400px;background:linear-gradient(135deg,#f093fb,#f5576c);bottom:-10%;left:-10%;animation:float-shape-2 15s ease-in-out infinite}.shape-3{width:350px;height:350px;background:linear-gradient(135deg,#4facfe,#00f2fe);top:50%;left:50%;transform:translate(-50%,-50%);animation:float-shape-3 25s ease-in-out infinite}@keyframes float-shape-1{0%,to{transform:translate(0) rotate(0)}50%{transform:translate(-50px,50px) rotate(180deg)}}@keyframes float-shape-2{0%,to{transform:translate(0) rotate(0)}50%{transform:translate(50px,-50px) rotate(-180deg)}}@keyframes float-shape-3{0%,to{transform:translate(-50%,-50%) scale(1)}50%{transform:translate(-50%,-50%) scale(1.2)}}.scroll-indicator{position:absolute;bottom:3rem;left:50%;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:.5rem;color:#fff9;animation:bounce 2s ease-in-out infinite}.scroll-text{font-size:.9rem;text-transform:uppercase;letter-spacing:2px;font-weight:600}.scroll-arrow{font-size:1.5rem}@keyframes bounce{0%,to{transform:translate(-50%) translateY(0)}50%{transform:translate(-50%) translateY(10px)}}.features-section{padding:8rem 2rem;position:relative;z-index:10;background:linear-gradient(180deg,transparent 0%,rgba(0,0,0,.3) 100%)}.section-title-big{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;text-align:center;color:#fff;margin-bottom:4rem;letter-spacing:-.02em}.features-grid-modern{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;max-width:1200px;margin:0 auto}.feature-card-large{background:#ffffff0d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:24px;padding:3rem;border:1px solid rgba(255,255,255,.1);transition:all .3s ease;cursor:pointer}.feature-card-large:hover{background:#ffffff14;border-color:#8b5cf680;box-shadow:0 20px 60px #8b5cf64d}.feature-icon-large{font-size:4rem;margin-bottom:1.5rem;display:inline-block}.feature-title-large{font-size:1.8rem;font-weight:700;color:#fff;margin-bottom:1rem}.feature-description{font-size:1.1rem;color:#ffffffb3;line-height:1.6;margin-bottom:1.5rem}.feature-badge{display:inline-block;padding:.5rem 1rem;background:linear-gradient(135deg,#667eea33,#764ba233);border-radius:20px;font-size:.9rem;color:#a78bfa;font-weight:600;border:1px solid rgba(167,139,250,.3)}.stats-section-modern{padding:6rem 2rem;position:relative;z-index:10}.stats-container-modern{max-width:900px;margin:0 auto;display:flex;justify-content:space-around;align-items:center;background:#ffffff0d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:24px;padding:3rem 2rem;border:1px solid rgba(255,255,255,.1)}.stat-item-modern{text-align:center}.stat-number{font-size:clamp(2.5rem,5vw,4rem);font-weight:900;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1;margin-bottom:.5rem}.stat-label{font-size:1rem;color:#ffffffb3;text-transform:uppercase;letter-spacing:1px;font-weight:600}.stat-divider-modern{width:1px;height:60px;background:#fff3}.trust-section{padding:4rem 2rem;position:relative;z-index:10}.trust-badges-modern{display:flex;justify-content:center;gap:3rem;flex-wrap:wrap;max-width:800px;margin:0 auto}.trust-badge-modern{display:flex;flex-direction:column;align-items:center;gap:1rem}.trust-icon-large{font-size:3rem;background:#ffffff1a;width:80px;height:80px;display:flex;align-items:center;justify-content:center;border-radius:20px;border:1px solid rgba(255,255,255,.2)}.trust-label{font-size:1rem;color:#fffc;font-weight:600;text-align:center}.final-cta-section{padding:8rem 2rem;text-align:center;position:relative;z-index:10}.final-cta-title{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;color:#fff;margin-bottom:1rem;letter-spacing:-.02em}.final-cta-subtitle{font-size:1.3rem;color:#ffffffb3;margin-bottom:3rem;max-width:600px;margin-left:auto;margin-right:auto}.cta-button-final{font-size:1.5rem!important;padding:1.5rem 4rem!important;border-radius:60px!important;font-weight:700!important;background:linear-gradient(135deg,#667eea,#764ba2)!important;box-shadow:0 10px 40px #667eea66!important;transition:all .3s ease!important}.cta-button-final:hover{transform:translateY(-3px) scale(1.05)!important;box-shadow:0 15px 50px #667eea99!important}.welcome-footer-modern{padding:3rem 2rem;text-align:center;border-top:1px solid rgba(255,255,255,.1);position:relative;z-index:10}.footer-content{display:flex;flex-direction:column;align-items:center;gap:1rem}.footer-logo{width:60px;height:auto;opacity:.8}.footer-tagline{font-size:.9rem;color:#ffffff80;font-weight:500}.start-form-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;position:relative;z-index:10}.start-form-card{background:#ffffff0d;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:32px;padding:3rem;max-width:600px;width:100%;border:1px solid rgba(255,255,255,.1);box-shadow:0 20px 60px #0000004d}.back-button{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fffc;padding:.75rem 1.5rem;border-radius:12px;font-size:1rem;cursor:pointer;transition:all .2s ease;margin-bottom:2rem;font-weight:600}.back-button:hover{background:#ffffff26;transform:translate(-3px)}.form-title{font-size:2.5rem;font-weight:800;color:#fff;margin-bottom:.5rem;text-align:center}.form-subtitle{font-size:1.2rem;color:#ffffffb3;text-align:center;margin-bottom:2rem}.progress-card{background:#ffffff0d;border-radius:20px;padding:2rem;margin-bottom:2rem;border:1px solid rgba(255,255,255,.1)}.progress-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1.5rem}.progress-icon{font-size:1.5rem}.progress-title{font-size:1.3rem;font-weight:700;color:#fff}.progress-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-bottom:1.5rem}.progress-stat{text-align:center}.stat-label-small{font-size:.85rem;color:#fff9;text-transform:uppercase;letter-spacing:1px;margin-bottom:.5rem;font-weight:600}.stat-value-large{font-size:2rem;font-weight:800;color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.progress-bar-container{width:100%;height:8px;background:#ffffff1a;border-radius:10px;overflow:hidden;margin-bottom:1rem}.progress-bar-fill{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);border-radius:10px;transition:width .3s ease}.last-activity{font-size:.95rem;color:#fff9;text-align:center}.form-actions{display:flex;flex-direction:column;gap:1rem;margin-bottom:1.5rem}.form-note{font-size:.9rem;color:#ffffff80;text-align:center}.welcome-loading,.welcome-error{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;text-align:center;color:#fff}.loading-spinner{width:50px;height:50px;border:4px solid rgba(255,255,255,.2);border-top-color:#667eea;border-radius:50%;animation:spin 1s linear infinite}.error-icon{font-size:4rem;margin-bottom:1rem}@media(max-width:768px){.hero-logo img{width:100px}.hero-title-massive{font-size:2.5rem}.hero-subtitle-large{font-size:1rem}.cta-button-massive{font-size:1.2rem!important;padding:1.2rem 2.5rem!important}.features-grid-modern{grid-template-columns:1fr;gap:1.5rem}.feature-card-large{padding:2rem}.stats-container-modern{flex-direction:column;gap:2rem}.stat-divider-modern{width:60px;height:1px}.trust-badges-modern{gap:2rem}.start-form-card{padding:2rem}.progress-stats{grid-template-columns:1fr;gap:1rem}}@media(max-width:480px){.parallax-hero{padding:1rem}.features-section,.stats-section-modern,.final-cta-section{padding:4rem 1rem}.section-title-big{font-size:2rem}.feature-icon-large{font-size:3rem}.feature-title-large{font-size:1.5rem}.stat-number{font-size:2rem}}.likert-question-enhanced{width:100%;padding:var(--space-2xl) 0;display:flex;flex-direction:column;align-items:center;gap:var(--space-2xl)}.likert-scale-container{width:100%;max-width:700px;display:flex;flex-direction:column;gap:var(--space-lg)}.likert-scale{display:flex;justify-content:space-between;align-items:center;gap:var(--space-md);padding:var(--space-xl);background:var(--color-bg-secondary);border-radius:var(--radius-2xl);box-shadow:var(--shadow-lg);position:relative}.likert-scale:before{content:"";position:absolute;top:50%;left:var(--space-xl);right:var(--space-xl);height:4px;background:linear-gradient(90deg,#ef4444,#f97316,#eab308,#22c55e,#8b5cf6);transform:translateY(-50%);border-radius:var(--radius-full);opacity:.3;z-index:0}.likert-option{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:var(--space-xs);background:var(--color-bg-primary);border:3px solid var(--color-border);border-radius:var(--radius-full);width:80px;height:80px;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-md)}.likert-option:hover{border-color:var(--color-primary);box-shadow:var(--shadow-xl);background:var(--color-bg-secondary)}.likert-option.selected{border-width:4px;box-shadow:0 0 0 4px #8b5cf633,var(--shadow-2xl);background:linear-gradient(135deg,#8b5cf61a,#8b5cf633)}.likert-option-emoji{font-size:2.5rem;line-height:1;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}.likert-option.selected .likert-option-emoji{filter:drop-shadow(0 4px 8px rgba(0,0,0,.2))}.likert-option-value{font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);color:var(--color-text-muted);background:var(--color-bg-tertiary);width:24px;height:24px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;position:absolute;bottom:-8px}.likert-option.selected .likert-option-value{background:var(--color-primary);color:#fff}.selection-ring{position:absolute;inset:-6px;border:3px solid;border-radius:var(--radius-full);pointer-events:none}.likert-labels{display:flex;justify-content:space-between;padding:0 var(--space-md);font-size:var(--font-size-sm);color:var(--color-text-muted);font-weight:var(--font-weight-medium)}.likert-label-start,.likert-label-end{display:flex;align-items:center;gap:var(--space-xs)}.likert-label-start:before{content:"←";font-size:var(--font-size-lg);color:var(--color-primary)}.likert-label-end:after{content:"→";font-size:var(--font-size-lg);color:var(--color-primary)}.likert-feedback-enhanced{display:flex;align-items:center;gap:var(--space-lg);padding:var(--space-xl) var(--space-2xl);background:#8b5cf61a;border:2px solid rgba(139,92,246,.3);border-radius:var(--radius-xl);min-width:300px;box-shadow:var(--shadow-lg)}.feedback-emoji{font-size:3rem;filter:drop-shadow(0 4px 8px rgba(0,0,0,.1))}.feedback-text{display:flex;align-items:center;gap:var(--space-md);flex:1}.feedback-label{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.feedback-checkmark{font-size:var(--font-size-2xl);color:var(--color-success);font-weight:var(--font-weight-bold)}@media(max-width:768px){.likert-scale{flex-direction:column;gap:var(--space-lg);padding:var(--space-lg)}.likert-scale:before{left:50%;right:auto;top:var(--space-lg);bottom:var(--space-lg);width:4px;height:auto;transform:translate(-50%);background:linear-gradient(180deg,#ef4444,#f97316,#eab308,#22c55e,#8b5cf6)}.likert-option{width:100%;max-width:280px;height:auto;flex-direction:row;padding:var(--space-lg);border-radius:var(--radius-xl);justify-content:flex-start}.likert-option-emoji{font-size:2rem}.likert-option-value{position:static;width:28px;height:28px;font-size:var(--font-size-sm);margin-left:auto}.likert-labels{flex-direction:column;gap:var(--space-md);text-align:center}.likert-label-start:before,.likert-label-end:after{display:none}.likert-feedback-enhanced{flex-direction:column;text-align:center;min-width:auto;width:100%}.feedback-text{flex-direction:column;gap:var(--space-sm)}}.mcq-question{width:100%;padding:var(--space-md) 0}.mcq-instruction{text-align:center;color:var(--color-text-muted);font-size:var(--font-size-sm);margin-bottom:var(--space-lg);font-style:italic}.mcq-options{display:flex;flex-direction:column;gap:var(--space-md)}.mcq-option{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-lg);background-color:#1e293b80;border:2px solid rgba(139,92,246,.2);border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-fast);-webkit-user-select:none;user-select:none}.mcq-option:hover{border-color:var(--color-primary);background-color:#8b5cf61a;transform:translate(4px);box-shadow:0 4px 12px #8b5cf633}.mcq-option.selected{border-color:var(--color-primary);background:linear-gradient(135deg,#8b5cf626,#14b8a626);box-shadow:0 4px 16px #8b5cf64d,inset 0 0 20px #8b5cf61a}.mcq-option-check{flex-shrink:0}.checkbox,.radio{width:24px;height:24px;border:2px solid var(--color-bg-tertiary);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-sm);font-weight:var(--font-weight-bold);transition:all var(--transition-fast)}.checkbox{border-radius:var(--radius-sm)}.radio{border-radius:50%}.checkbox.checked,.radio.checked{border-color:var(--color-primary);background-color:var(--color-primary);color:var(--color-text-primary)}.radio-dot{width:10px;height:10px;border-radius:50%;background-color:var(--color-text-primary)}.mcq-option-label{flex:1;font-size:var(--font-size-base);color:var(--color-text-primary);line-height:var(--line-height-relaxed)}@media(max-width:640px){.mcq-option{padding:var(--space-md)}.mcq-option-label{font-size:var(--font-size-sm)}}.ordering-question{width:100%;padding:var(--space-md) 0}.ordering-instruction{text-align:center;color:var(--color-text-muted);font-size:var(--font-size-sm);margin-bottom:var(--space-lg);font-style:italic}.ordering-list{display:flex;flex-direction:column;gap:var(--space-md);list-style:none;padding:0;margin:0}.ordering-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-lg);background-color:var(--color-bg-secondary);border:2px solid var(--color-bg-tertiary);border-radius:var(--radius-lg);cursor:grab;transition:all var(--transition-fast);-webkit-user-select:none;user-select:none;touch-action:none}.ordering-item:hover{border-color:var(--color-primary);background-color:var(--color-bg-tertiary)}.ordering-rank{width:32px;height:32px;border-radius:var(--radius-full);background:var(--gradient-primary);display:flex;align-items:center;justify-content:center;font-weight:var(--font-weight-bold);font-size:var(--font-size-sm);flex-shrink:0}.ordering-content{flex:1}.ordering-label{font-size:var(--font-size-base);color:var(--color-text-primary);line-height:var(--line-height-relaxed)}.ordering-handle{color:var(--color-text-muted);flex-shrink:0;cursor:grab}.ordering-item:active .ordering-handle{cursor:grabbing}@media(max-width:640px){.ordering-item{padding:var(--space-md)}.ordering-rank{width:28px;height:28px;font-size:var(--font-size-xs)}.ordering-label{font-size:var(--font-size-sm)}}.essay-question{width:100%;padding:var(--space-md) 0}.essay-textarea{width:100%;min-height:200px;padding:var(--space-lg);background-color:var(--color-bg-secondary);border:2px solid var(--color-bg-tertiary);border-radius:var(--radius-lg);color:var(--color-text-primary);font-size:var(--font-size-base);line-height:var(--line-height-relaxed);resize:vertical;transition:all var(--transition-fast);font-family:inherit}.essay-textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #6366f11a}.essay-textarea::placeholder{color:var(--color-text-muted)}.essay-footer{display:flex;justify-content:space-between;align-items:center;margin-top:var(--space-sm);padding:0 var(--space-xs)}.essay-char-count{font-size:var(--font-size-sm);color:var(--color-text-secondary);font-weight:var(--font-weight-medium)}.essay-char-count .error{color:var(--color-error)}.char-count-separator{margin:0 var(--space-xs);color:var(--color-text-muted)}.char-count-max{color:var(--color-text-muted)}.essay-min-length{font-size:var(--font-size-xs)}.essay-min-length .warning{color:var(--color-warning)}.essay-min-length .success{color:var(--color-success)}.essay-progress-track{height:3px;background-color:var(--color-bg-tertiary);border-radius:var(--radius-full);margin-top:var(--space-xs);overflow:hidden}.essay-progress-fill{height:100%;background-color:var(--color-primary);transition:width .3s ease,background-color .3s 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