*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6;color:#333;background-color:#fafafa;min-height:100vh;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;text-rendering:optimizeLegibility}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2;margin-bottom:.5em}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.75rem}h4{font-size:1.5rem}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-bottom:1rem}:focus{outline:none}:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px;border-radius:var(--radius-xs);box-shadow:0 0 0 1px var(--color-white),0 0 0 4px #2196f34d;transition:all var(--transition-fast)}@media (prefers-contrast: 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reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 1rem}.container-sm{max-width:576px}.container-md{max-width:768px}.container-lg{max-width:992px}.container-xl{max-width:1200px}.grid{display:grid;gap:1rem}.grid-auto{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.grid-1{grid-template-columns:1fr}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.flex{display:flex}.flex-column{flex-direction:column}.flex-center{justify-content:center;align-items:center}.flex-between{justify-content:space-between}.flex-wrap{flex-wrap:wrap}.gap-xs{gap:.25rem}.gap-sm{gap:.5rem}.gap-md{gap:1rem}.gap-lg{gap:1.5rem}.gap-xl{gap:2rem}.p-xs{padding:.25rem}.p-sm{padding:.5rem}.p-md{padding:1rem}.p-lg{padding:1.5rem}.p-xl{padding:2rem}.m-xs{margin:.25rem}.m-sm{margin:.5rem}.m-md{margin:1rem}.m-lg{margin:1.5rem}.m-xl{margin:2rem}:root{--color-primary: #1976D2;--color-primary-light: #42A5F5;--color-primary-dark: #0D47A1;--color-risk-low: #2E7D32;--color-risk-moderate: #F57C00;--color-risk-high: #D84315;--color-success: #2E7D32;--color-warning: #F57C00;--color-error: #C62828;--color-info: #1976D2;--color-white: #FFFFFF;--color-gray-50: #FAFAFA;--color-gray-100: #F5F5F5;--color-gray-200: #EEEEEE;--color-gray-300: #E0E0E0;--color-gray-400: #BDBDBD;--color-gray-500: #9E9E9E;--color-gray-600: #757575;--color-gray-700: #616161;--color-gray-800: #424242;--color-gray-900: #212121;--color-black: #000000;--text-primary: #1A1A1A;--text-secondary: #616161;--text-disabled: #9E9E9E;--text-hint: #757575;--bg-primary: #FFFFFF;--bg-secondary: #FAFAFA;--bg-disabled: #F5F5F5;--shadow-sm: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.24);--shadow-md: 0 3px 6px rgba(0,0,0,.16), 0 3px 6px rgba(0,0,0,.23);--shadow-lg: 0 10px 20px rgba(0,0,0,.19), 0 6px 6px rgba(0,0,0,.23);--shadow-xl: 0 14px 28px rgba(0,0,0,.25), 0 10px 10px rgba(0,0,0,.22);--radius-xs: 2px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--transition-fast: 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var(--transition-normal)}.card:hover{box-shadow:var(--shadow-md)}.card-header{padding:1.5rem;border-bottom:1px solid var(--color-gray-200)}.card-body{padding:1.5rem}.card-footer{padding:1rem 1.5rem;background-color:var(--bg-secondary);border-top:1px solid var(--color-gray-200)}.form-group{margin-bottom:1.5rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text-primary)}.form-input{width:100%;padding:.75rem;font-size:1rem;border:2px solid var(--color-gray-300);border-radius:var(--radius-md);background-color:var(--bg-primary);color:var(--text-primary);transition:border-color 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1.5rem}h1{font-size:2.75rem}h2{font-size:2.25rem}h3{font-size:2rem}.grid-sm-1{grid-template-columns:1fr}.grid-sm-2{grid-template-columns:repeat(2,1fr)}.grid-sm-3{grid-template-columns:repeat(3,1fr)}}@media (min-width: 768px){html{font-size:18px}.container{padding:0 2rem}h1{font-size:3rem}h2{font-size:2.5rem}h3{font-size:2.25rem}.grid-md-1{grid-template-columns:1fr}.grid-md-2{grid-template-columns:repeat(2,1fr)}.grid-md-3{grid-template-columns:repeat(3,1fr)}.grid-md-4{grid-template-columns:repeat(4,1fr)}.p-md-lg{padding:1.5rem}.m-md-lg{margin:1.5rem}}@media (min-width: 992px){html{font-size:18px}.container{padding:0 2rem}h1{font-size:3.5rem}h2{font-size:3rem}h3{font-size:2.5rem}.grid-lg-1{grid-template-columns:1fr}.grid-lg-2{grid-template-columns:repeat(2,1fr)}.grid-lg-3{grid-template-columns:repeat(3,1fr)}.grid-lg-4{grid-template-columns:repeat(4,1fr)}.grid-lg-5{grid-template-columns:repeat(5,1fr)}.p-lg-xl{padding:2rem}.m-lg-xl{margin:2rem}}@media (min-width: 1200px){html{font-size:18px}.container{padding:0 2rem}h1{font-size:4rem}h2{font-size:3.5rem}h3{font-size:3rem}.grid-xl-1{grid-template-columns:1fr}.grid-xl-2{grid-template-columns:repeat(2,1fr)}.grid-xl-3{grid-template-columns:repeat(3,1fr)}.grid-xl-4{grid-template-columns:repeat(4,1fr)}.grid-xl-5{grid-template-columns:repeat(5,1fr)}.grid-xl-6{grid-template-columns:repeat(6,1fr)}}.d-none{display:none}.d-block{display:block}.d-flex{display:flex}.d-grid{display:grid}@media (max-width: 575.98px){.d-sm-none{display:none}.d-sm-block{display:block}.d-sm-flex{display:flex}}@media (min-width: 576px) and (max-width: 767.98px){.d-md-none{display:none}.d-md-block{display:block}.d-md-flex{display:flex}}@media (min-width: 768px) and (max-width: 991.98px){.d-lg-none{display:none}.d-lg-block{display:block}.d-lg-flex{display:flex}}@media (min-width: 992px){.d-xl-none{display:none}.d-xl-block{display:block}.d-xl-flex{display:flex}}.text-left{text-align:left}.text-center{text-align:center}.text-right{text-align:right}.text-xs{font-size:.75rem}.text-sm{font-size:.875rem}.text-base{font-size:1rem}.text-lg{font-size:1.125rem}.text-xl{font-size:1.25rem}.text-2xl{font-size:1.5rem}.font-light{font-weight:300}.font-normal{font-weight:400}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.animate-fade-in{animation:fadeIn .3s ease-in-out}.animate-slide-up{animation:slideUp .3s ease-out}.animate-pulse{animation:pulse 2s infinite}.status-indicator{position:relative;display:inline-flex;align-items:center;gap:.5rem}.status-indicator:before{content:"";width:12px;height:12px;border-radius:50%;flex-shrink:0}.status-success{color:var(--color-success)}.status-success:before{background-color:var(--color-success);background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='white' d='M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z'/%3e%3c/svg%3e");background-repeat:no-repeat;background-position:center;background-size:10px}.status-warning{color:var(--color-warning)}.status-warning:before{background-color:var(--color-warning);background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='white' d='M8.982 1.566a1.13 1.13 0 0 0-1.96 0L.165 13.233c-.457.778.091 1.767.98 1.767h13.713c.889 0 1.438-.99.98-1.767L8.982 1.566zM8 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0a8 8 0 0 0 0 16z'/%3e%3cpath fill='white' d='M8.93 6.588l-2.29.287-.082.38.45.083c.294.07.352.176.288.469l-.738 3.468c-.194.897.105 1.319.808 1.319.545 0 1.178-.252 1.465-.598l.088-.416c-.2.176-.492.246-.686.246-.275 0-.375-.193-.304-.533L8.93 6.588zM9 4.5a1 1 0 1 1-2 0 1 1 0 0 1 2 0z'/%3e%3c/svg%3e");background-repeat:no-repeat;background-position:center;background-size:10px}.risk-indicator{position:relative;display:inline-flex;align-items:center;gap:.5rem;padding:.25rem .75rem;border-radius:var(--radius-md);font-weight:500;font-size:.875rem}.risk-low{background-color:var(--color-risk-low);color:#fff;border-left:4px solid #1B5E20}.risk-moderate{background-color:var(--color-risk-moderate);color:#fff;border-left:4px solid #E65100;background-image:repeating-linear-gradient(45deg,transparent,transparent 2px,rgba(255,255,255,.1) 2px,rgba(255,255,255,.1) 4px)}.risk-high{background-color:var(--color-risk-high);color:#fff;border-left:4px solid #BF360C;background-image:repeating-linear-gradient(-45deg,transparent,transparent 3px,rgba(255,255,255,.15) 3px,rgba(255,255,255,.15) 6px)}@media (min-resolution: 192dpi),(min-resolution: 2dppx){.card{box-shadow:var(--shadow-sm)}}@media (min-width: 1400px){.container{max-width:1320px}}@media (min-width: 1600px){.container{max-width:1500px}}.guidance-overlay-layer{will-change:contents;transform:translateZ(0);backface-visibility:hidden;perspective:1000px}.status-indicator{box-shadow:0 2px 4px #0000001a;isolation:isolate}@media screen and (-webkit-min-device-pixel-ratio: 0){.integrated-guidance-video-container{transform:translateZ(0)}button{transform:translateZ(0);will-change:transform,background-color}}.header{background-color:var(--color-primary);color:var(--color-white);padding:.75rem 0;box-shadow:var(--shadow-md);position:sticky;top:0;z-index:100;transition:all var(--transition-normal)}.header-container{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:0 1rem}.header-logo{font-size:1.5rem;font-weight:700;text-decoration:none;color:var(--color-white);transition:transform var(--transition-fast)}.header-logo:hover{transform:scale(1.05)}.header-nav{display:flex;gap:.5rem;align-items:center}.header-link{color:var(--color-white);text-decoration:none;padding:.5rem 1rem;border-radius:var(--radius-md);transition:all var(--transition-fast);font-weight:500;position:relative;white-space:nowrap}.header-link:hover{background-color:#ffffff1a;transform:translateY(-2px)}.header-link:focus-visible{outline:3px solid var(--color-white);outline-offset:2px;background-color:#ffffff26;border-radius:var(--radius-md)}.header-link.active{background-color:#fff3;font-weight:600}.header-link.active:after{content:"";position:absolute;bottom:-.75rem;left:50%;transform:translate(-50%);width:80%;height:2px;background-color:var(--color-white);border-radius:var(--radius-full)}.header-mobile-toggle{display:none;flex-direction:column;gap:3px;background:none;border:none;cursor:pointer;padding:.5rem;color:var(--color-white);border-radius:var(--radius-sm);transition:all var(--transition-fast)}.header-mobile-toggle:focus-visible{outline:3px solid var(--color-white);outline-offset:2px;background-color:#ffffff1a}.header-mobile-toggle:hover{background-color:#ffffff1a}.header-mobile-toggle span{width:20px;height:2px;background-color:currentColor;transition:all var(--transition-fast)}.header-mobile-menu{position:absolute;top:100%;left:0;right:0;background-color:var(--color-primary);border-top:1px solid rgba(255,255,255,.2);padding:1rem;display:none;flex-direction:column;gap:.5rem;box-shadow:var(--shadow-lg)}.header-mobile-menu.open{display:flex;animation:slideUp .3s ease-out}.footer{background-color:var(--color-gray-800);color:var(--color-white);padding:2rem 0 1rem;margin-top:auto}.footer-container{max-width:1200px;margin:0 auto;padding:0 1rem}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:2rem}.footer-section h3{margin-bottom:1rem;color:var(--color-primary-light)}.footer-section p,.footer-section li{color:var(--color-gray-300);line-height:1.6}.footer-section ul{list-style:none}.footer-section a{color:var(--color-gray-300);text-decoration:none;transition:color var(--transition-fast)}.footer-section a:hover{color:var(--color-primary-light)}.footer-bottom{border-top:1px solid var(--color-gray-700);padding-top:1rem;text-align:center;color:var(--color-gray-400);font-size:.875rem}.main-layout{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;padding:0}.home-container{min-height:calc(100vh - 80px);background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-primary) 100%);position:relative}.home-hero{text-align:center;padding:3rem 1rem 2rem;max-width:800px;margin:0 auto}.home-hero h1{color:var(--text-primary);margin-bottom:1rem;font-weight:700;font-size:clamp(1.8rem,5vw,2.5rem);line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.home-hero p{color:var(--text-secondary);font-size:1.125rem;margin-bottom:2rem;max-width:600px;margin-left:auto;margin-right:auto}.home-system-container{max-width:1200px;margin:0 auto;padding:0 1rem}.home-result-summary{max-width:1200px;margin:2rem auto;padding:0 1rem}.result-card{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:1.5rem;animation:slideUp .3s ease-out}.result-card h3{margin-bottom:1rem;color:var(--text-primary)}.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;font-size:.875rem}.result-item{display:flex;flex-direction:column;gap:.25rem}.result-item strong{color:var(--text-primary);font-weight:600}.result-item span{color:var(--text-secondary)}.guidance-system{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden;margin:1rem 0}.guidance-header{background:linear-gradient(90deg,var(--color-primary),var(--color-primary-light));color:var(--color-white);padding:1.5rem;text-align:center}.guidance-body{padding:2rem;min-height:400px;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative}.guidance-controls{display:flex;gap:1rem;margin-top:1.5rem;flex-wrap:wrap;justify-content:center}.guidance-status{padding:1rem 1.5rem;background:var(--bg-secondary);border-top:1px solid var(--color-gray-200);display:flex;align-items:center;justify-content:center;gap:.5rem;font-weight:500}.status-indicator{width:12px;height:12px;border-radius:50%;animation:pulse 2s infinite}.status-indicator.idle{background-color:var(--color-gray-400);animation:none}.status-indicator.initializing{background-color:var(--color-warning)}.status-indicator.ready{background-color:var(--color-success);animation:none}.status-indicator.measuring{background-color:var(--color-primary)}.status-indicator.error{background-color:var(--color-error);animation:none}.webcam-container{position:relative;border-radius:var(--radius-md);overflow:hidden;background:var(--color-gray-900);box-shadow:var(--shadow-lg);max-width:100%;margin:0 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#4caf50}.risk-indicator.risk-moderate{background-color:#fff3e0;color:#ef6c00;border:1px solid #ff9800}.risk-indicator.risk-high{background-color:#ffebee;color:#c62828;border:1px solid #f44336}.risk-gauge-responsive{width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:10px}@media (max-width: 480px){.risk-indicator{font-size:10px;padding:3px 6px;min-width:40px}.risk-gauge-responsive{padding:8px}}@media (max-width: 360px){.risk-indicator{font-size:9px;padding:2px 4px;min-width:35px}}.risk-level.low{background-color:var(--color-risk-low);color:var(--color-white)}.risk-level.moderate{background-color:var(--color-risk-moderate);color:var(--color-white)}.risk-level.high{background-color:var(--color-risk-high);color:var(--color-white)}.risk-score{font-size:2rem;font-weight:700;margin:1rem 0;color:var(--text-primary)}.risk-description{color:var(--text-secondary);font-size:.9rem;line-height:1.5;max-width:300px;margin:0 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h3{font-size:2.5rem!important;margin-bottom:1.5rem!important;color:var(--color-primary-light)!important;font-weight:700;letter-spacing:.05em}.footer-brand p{color:var(--color-gray-300)!important;line-height:1.8!important;font-size:1.2rem!important;max-width:700px;margin:0 auto}.footer-grid-sections{display:grid!important;grid-template-columns:repeat(3,1fr)!important;gap:3rem!important;align-items:start;padding-top:1rem}.footer-grid-sections .footer-section{display:flex!important;flex-direction:column!important;background-color:var(--color-gray-800)!important;padding:2rem 1.5rem!important;border-radius:var(--radius-lg)!important;border:1px solid var(--color-gray-700)!important;transition:all var(--transition-normal)!important}.footer-grid-sections .footer-section:hover{transform:translateY(-4px)!important;box-shadow:var(--shadow-lg)!important;border-color:var(--color-primary-light)!important}.footer-grid-sections .footer-section h3{margin-bottom:1.5rem!important;color:var(--color-primary-light)!important;font-size:1.3rem!important;text-align:center!important;font-weight:600!important;padding-bottom:.8rem!important;border-bottom:2px solid var(--color-primary)!important;position:relative!important}.footer-grid-sections .footer-section h3:after{content:"";position:absolute;bottom:-2px;left:50%;transform:translate(-50%);width:30px;height:2px;background-color:var(--color-primary-light)}.footer-grid-sections .footer-section ul{list-style:none!important;padding:0!important;margin:0!important}.footer-grid-sections .footer-section li{padding:.6rem 0!important;border-bottom:1px solid var(--color-gray-600)!important;transition:all var(--transition-fast)!important;border-radius:var(--radius-sm)!important;margin-bottom:.3rem!important}.footer-grid-sections .footer-section li:last-child{border-bottom:none!important;margin-bottom:0!important}.footer-grid-sections .footer-section 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