:root{--color-primary: #0066cc;--color-primary-dark: #0052a3;--color-success: #059669;--color-error: #dc2626;--color-warning: #d97706;--color-text-primary: #1a1a1a;--color-text-secondary: #6b7280;--color-text-light: #9ca3af;--color-bg: #ffffff;--color-bg-secondary: #f9fafb;--color-bg-tertiary: #f3f4f6;--color-border: #e5e7eb;--color-border-focus: #3b82f6;--color-ai-message: #f3f4f6;--color-user-message: #0066cc;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4rem;--border-radius-sm: .375rem;--border-radius-md: .5rem;--border-radius-lg: .75rem;--border-radius-xl: 1rem;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--color-text-primary);background-color:var(--color-bg);line-height:1.5;min-height:100vh}#root,.app{min-height:100vh;display:flex;flex-direction:column}.app-main{flex:1;display:flex;flex-direction:column}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-dark);text-decoration:underline}a:focus-visible{outline:2px solid var(--color-border-focus);outline-offset:2px;border-radius:var(--border-radius-sm)}button{font-family:inherit;cursor:pointer;border:none;background:none}input,textarea{font-family:inherit}input:focus-visible,textarea:focus-visible,button:focus-visible{outline:2px solid var(--color-border-focus);outline-offset:2px}.app-header{background-color:var(--color-bg);border-bottom:1px solid var(--color-border);padding:var(--spacing-lg) var(--spacing-md)}.header-content{max-width:1200px;margin:0 auto}.brand{display:flex;align-items:center;justify-content:center}.brand-logo{height:60px;width:auto;object-fit:contain}.hero-section{padding:var(--spacing-3xl) var(--spacing-md) var(--spacing-2xl);text-align:center;background:linear-gradient(180deg,var(--color-bg) 0%,var(--color-bg-secondary) 100%)}.hero-content{max-width:800px;margin:0 auto}.hero-illustration{color:var(--color-primary);margin-bottom:var(--spacing-xl);animation:fadeIn var(--transition-slow)}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.hero-title{font-size:2.25rem;font-weight:700;color:var(--color-text-primary);margin-bottom:var(--spacing-lg);line-height:1.2}.hero-description{font-size:1.125rem;color:var(--color-text-secondary);line-height:1.6;max-width:700px;margin:0 auto}.code-validation-section{padding:var(--spacing-2xl) var(--spacing-md) var(--spacing-3xl);display:flex;justify-content:center}.validation-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--border-radius-xl);padding:var(--spacing-2xl);max-width:500px;width:100%;box-shadow:var(--shadow-md)}.section-title{font-size:1.5rem;font-weight:600;color:var(--color-text-primary);margin-bottom:var(--spacing-lg);text-align:center}.validation-form{display:flex;flex-direction:column;gap:var(--spacing-lg)}.input-group{display:flex;flex-direction:column}.code-input{width:100%;padding:var(--spacing-md) var(--spacing-lg);font-size:1.125rem;border:2px solid var(--color-border);border-radius:var(--border-radius-md);transition:border-color var(--transition-fast);text-align:center;letter-spacing:.1em;font-weight:600;text-transform:uppercase}.code-input:focus{border-color:var(--color-border-focus);outline:none}.code-input.error{border-color:var(--color-error)}.code-input:disabled{background-color:var(--color-bg-secondary);cursor:not-allowed;opacity:.6}.status-message{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md);border-radius:var(--border-radius-md);font-size:.9375rem;animation:slideIn var(--transition-normal)}@keyframes slideIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.status-message.valid{background-color:#d1fae5;color:var(--color-success);border:1px solid var(--color-success)}.status-message.invalid,.status-message.used{background-color:#fee2e2;color:var(--color-error);border:1px solid var(--color-error)}.status-message.loading{background-color:var(--color-bg-tertiary);color:var(--color-text-secondary);border:1px solid var(--color-border)}.status-icon{flex-shrink:0;font-weight:700;font-size:1.125rem}.submit-button{padding:var(--spacing-md) var(--spacing-xl);font-size:1rem;font-weight:600;border-radius:var(--border-radius-md);transition:all var(--transition-fast);display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);width:100%;min-height:48px}.submit-button.primary{background-color:var(--color-primary);color:#fff}.submit-button.primary:hover:not(:disabled){background-color:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.submit-button.primary:active:not(:disabled){transform:translateY(0)}.submit-button:disabled{opacity:.5;cursor:not-allowed}.help-section{margin-top:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--spacing-md)}.continue-session-button{padding:var(--spacing-sm) var(--spacing-md);text-align:center;background-color:transparent;color:var(--color-primary);font-size:.875rem;font-weight:500;cursor:pointer;border-radius:var(--border-radius-sm);transition:all var(--transition-fast)}.continue-session-button:hover{background-color:var(--color-bg-secondary);text-decoration:underline}.help-text{font-size:.875rem;color:var(--color-text-secondary);text-align:center;margin:0}.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.personal-details-section{padding:var(--spacing-3xl) var(--spacing-md);display:flex;justify-content:center;flex:1;background-color:var(--color-bg-secondary)}.details-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--border-radius-xl);padding:var(--spacing-2xl);max-width:600px;width:100%;box-shadow:var(--shadow-md);animation:slideIn var(--transition-slow)}.section-description{font-size:.9375rem;color:var(--color-text-secondary);text-align:center;margin-bottom:var(--spacing-xl);line-height:1.6}.details-form{display:flex;flex-direction:column;gap:var(--spacing-lg)}.form-group{display:flex;flex-direction:column;gap:var(--spacing-sm)}.form-label{font-size:.9375rem;font-weight:600;color:var(--color-text-primary)}.required{color:var(--color-error)}.optional{color:var(--color-text-light);font-weight:400}.form-input{width:100%;padding:var(--spacing-md) var(--spacing-lg);font-size:1rem;border:2px solid var(--color-border);border-radius:var(--border-radius-md);transition:border-color var(--transition-fast)}.form-input:focus{border-color:var(--color-border-focus);outline:none}.form-input.error{border-color:var(--color-error)}.error-message{font-size:.875rem;color:var(--color-error);display:flex;align-items:center;gap:var(--spacing-xs)}.info-banner{display:flex;align-items:flex-start;gap:var(--spacing-md);padding:var(--spacing-lg);background-color:#dbeafe;border:1px solid #3b82f6;border-radius:var(--border-radius-md);margin-top:var(--spacing-md)}.info-banner svg{color:#3b82f6;flex-shrink:0;margin-top:2px}.info-banner p{font-size:.9375rem;color:#1e40af;margin:0;line-height:1.5}.chat-interface{display:flex;flex-direction:column;height:100vh;background-color:var(--color-bg)}.chat-header{background-color:var(--color-bg);border-bottom:1px solid var(--color-border);padding:var(--spacing-lg) var(--spacing-md)}.chat-header-content{max-width:900px;margin:0 auto}.chat-title{font-size:1.25rem;font-weight:600;color:var(--color-text-primary);margin-bottom:var(--spacing-md)}.progress-info{display:flex;flex-direction:column;gap:var(--spacing-sm)}.progress-text{font-size:.875rem;color:var(--color-text-secondary);font-weight:500}.progress-bar{width:100%;height:6px;background-color:var(--color-bg-tertiary);border-radius:999px;overflow:hidden}.progress-fill{height:100%;background-color:var(--color-primary);transition:width var(--transition-slow);border-radius:999px}.chat-messages{flex:1;overflow-y:auto;padding:var(--spacing-xl) var(--spacing-md) var(--spacing-2xl);background-color:var(--color-bg-secondary);min-height:0}.messages-container{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:var(--spacing-lg)}.message{display:flex;gap:var(--spacing-md);animation:messageSlide var(--transition-normal)}@keyframes messageSlide{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.ai{align-items:flex-start}.message.user{justify-content:flex-end}.message-avatar{width:40px;height:40px;border-radius:50%;background-color:var(--color-primary);color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}.message-bubble{max-width:70%;padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--border-radius-lg);font-size:1rem;line-height:1.5}.message.ai .message-bubble{background-color:var(--color-ai-message);color:var(--color-text-primary);border-bottom-left-radius:var(--border-radius-sm)}.message.user .message-bubble{background-color:var(--color-user-message);color:#fff;border-bottom-right-radius:var(--border-radius-sm)}.message-bubble.loading{padding:var(--spacing-lg)}.typing-indicator{display:flex;gap:var(--spacing-sm)}.typing-indicator span{width:8px;height:8px;border-radius:50%;background-color:var(--color-text-secondary);animation:typing 1.4s infinite}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.7}30%{transform:translateY(-10px);opacity:1}}.chat-options{border-top:1px solid var(--color-border);padding:var(--spacing-md) var(--spacing-md) var(--spacing-lg);background-color:var(--color-bg);animation:slideUp var(--transition-normal);max-height:40vh;overflow-y:auto}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.options-container{max-width:900px;margin:0 auto;display:grid;grid-template-columns:1fr;gap:var(--spacing-sm)}.option-button{padding:var(--spacing-sm) var(--spacing-md);text-align:left;background-color:var(--color-bg);border:2px solid var(--color-border);border-radius:var(--border-radius-md);font-size:.875rem;color:var(--color-text-primary);transition:all var(--transition-fast);cursor:pointer;line-height:1.4;min-height:44px;display:flex;align-items:center;gap:var(--spacing-sm)}.option-label-round{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;min-width:28px;border-radius:50%;background-color:var(--color-primary);color:#fff;font-weight:600;font-size:.8125rem;flex-shrink:0}.option-text{flex:1}.option-button:hover{border-color:var(--color-primary);background-color:var(--color-bg-secondary);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.option-button:active{transform:translateY(0)}.chat-footer{padding:var(--spacing-md);text-align:center;background-color:var(--color-bg);border-top:1px solid var(--color-border)}.chat-footer-text{font-size:.875rem;color:var(--color-text-light);margin:0}.completion-section{padding:var(--spacing-3xl) var(--spacing-md);display:flex;justify-content:center;align-items:center;flex:1;background:linear-gradient(180deg,var(--color-bg) 0%,var(--color-bg-secondary) 100%)}.completion-card{text-align:center;max-width:600px;padding:var(--spacing-2xl);animation:scaleIn var(--transition-slow)}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.success-icon{color:var(--color-success);margin-bottom:var(--spacing-xl);display:inline-block;animation:successPulse .6s ease-in-out}@keyframes successPulse{0%{transform:scale(0);opacity:0}50%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}.success-icon .circle{stroke-dasharray:240;stroke-dashoffset:240;animation:drawCircle .6s ease-in-out forwards}.success-icon .checkmark{stroke-dasharray:50;stroke-dashoffset:50;animation:drawCheck .4s ease-in-out .3s forwards}@keyframes drawCircle{to{stroke-dashoffset:0}}@keyframes drawCheck{to{stroke-dashoffset:0}}.completion-title{font-size:2rem;font-weight:700;color:var(--color-text-primary);margin-bottom:var(--spacing-lg);line-height:1.2}.completion-message{display:flex;flex-direction:column;gap:var(--spacing-md);margin-bottom:var(--spacing-2xl)}.completion-message p{font-size:1.125rem;color:var(--color-text-secondary);line-height:1.6}.completion-submessage{font-size:1rem;color:var(--color-text-light)}.completion-actions{display:flex;justify-content:center;gap:var(--spacing-md)}.exit-button{padding:var(--spacing-md) var(--spacing-2xl);font-size:1rem;font-weight:600;border:2px solid var(--color-border);border-radius:var(--border-radius-md);background-color:var(--color-bg);color:var(--color-text-primary);transition:all var(--transition-fast);cursor:pointer}.exit-button:hover{border-color:var(--color-primary);background-color:var(--color-bg-secondary);transform:translateY(-1px);box-shadow:var(--shadow-md)}.exit-button:active{transform:translateY(0)}.app-footer{background-color:var(--color-bg);border-top:1px solid var(--color-border);padding:var(--spacing-lg) var(--spacing-md);margin-top:auto}.footer-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:var(--spacing-md)}.copyright{font-size:.875rem;color:var(--color-text-secondary)}.footer-links{display:flex;align-items:center;gap:var(--spacing-md);font-size:.875rem}.footer-link{color:var(--color-text-secondary);text-decoration:none}.footer-link:hover{color:var(--color-primary)}.footer-divider{color:var(--color-border)}.version{color:var(--color-text-light);font-size:.8125rem}@media(max-width:768px){.brand-logo{height:40px}.hero-title{font-size:1.75rem}.hero-description{font-size:1rem}.validation-card,.details-card{padding:var(--spacing-xl)}.message-bubble{max-width:85%}.chat-options{max-height:35vh;padding:var(--spacing-sm) var(--spacing-sm) var(--spacing-md)}.options-container{gap:var(--spacing-xs)}.option-button{padding:var(--spacing-sm);font-size:.8125rem;min-height:40px}.option-label-round{width:24px;height:24px;min-width:24px;font-size:.75rem}.completion-title{font-size:1.5rem}.completion-message p{font-size:1rem}.footer-content{flex-direction:column;text-align:center}}@media(max-width:480px){.app-header{padding:var(--spacing-md) var(--spacing-sm)}.hero-section{padding:var(--spacing-2xl) var(--spacing-sm) var(--spacing-xl)}.code-validation-section,.personal-details-section{padding:var(--spacing-xl) var(--spacing-sm)}.validation-card,.details-card{padding:var(--spacing-lg)}.brand-logo{height:36px}}.loading-transition{display:flex;justify-content:center;align-items:center;min-height:100vh;background-color:var(--color-bg-secondary)}.loading-content{text-align:center;animation:fadeIn var(--transition-slow)}.loading-spinner{position:relative;width:80px;height:80px;margin:0 auto var(--spacing-xl)}.spinner-ring{position:absolute;width:100%;height:100%;border:4px solid transparent;border-top-color:var(--color-primary);border-radius:50%;animation:spinRing 1.5s cubic-bezier(.5,0,.5,1) infinite}.spinner-ring:nth-child(1){animation-delay:-.45s;border-top-color:var(--color-primary)}.spinner-ring:nth-child(2){animation-delay:-.3s;border-top-color:#06c9}.spinner-ring:nth-child(3){animation-delay:-.15s;border-top-color:#0066cc4d}@keyframes spinRing{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-text{font-size:1.125rem;color:var(--color-text-secondary);font-weight:500}@media(min-width:768px){.options-container{grid-template-columns:repeat(2,1fr)}}