*{box-sizing:border-box;margin:0;padding:0}body{color:#333;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;padding:20px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}#root{min-height:100vh}.container{max-width:1200px;margin:0 auto}nav{background:#fffffff2;border-radius:10px;justify-content:space-between;align-items:center;margin-bottom:30px;padding:15px 30px;display:flex;box-shadow:0 4px 6px #0000001a}nav a{color:#667eea;font-size:18px;font-weight:600;text-decoration:none;transition:color .3s}nav a:hover{color:#764ba2}.tool-card{background:#fffffff2;border-radius:15px;margin-bottom:30px;padding:40px;box-shadow:0 10px 30px #0003}h1{color:#333;margin-bottom:10px;font-size:32px}h2{color:#667eea;margin-bottom:30px;font-size:24px}.form-group{margin-bottom:25px}label{color:#555;margin-bottom:8px;font-weight:600;display:block}input[type=text],input[type=number],input[type=range],textarea{border:2px solid #e0e0e0;border-radius:8px;width:100%;padding:12px;font-size:16px;transition:border-color .3s}input[type=text]:focus,input[type=number]:focus,textarea:focus{border-color:#667eea;outline:none}input[type=number]{appearance:textfield}input[type=number]::-webkit-outer-spin-button{appearance:none;margin:0}input[type=number]::-webkit-inner-spin-button{appearance:none;margin:0}input[type=range]{appearance:none;background:#e0e0e0;border-radius:4px;height:8px;padding:0}input[type=range]::-webkit-slider-thumb{appearance:none;cursor:pointer;background:#667eea;border-radius:50%;width:20px;height:20px}input[type=range]::-moz-range-thumb{cursor:pointer;background:#667eea;border:none;border-radius:50%;width:20px;height:20px}.range-value{color:#667eea;margin-left:10px;font-weight:600;display:inline-block}.checkbox-group{border-radius:8px;align-items:center;gap:0;margin-bottom:15px;padding:8px 12px;transition:background-color .3s;display:flex}.checkbox-group:hover{background-color:#667eea0d}input[type=checkbox]{cursor:pointer;width:20px;height:20px;margin-right:10px}input[type=radio]{cursor:pointer;appearance:none;background:#fff;border:2px solid #e0e0e0;border-radius:50%;flex-shrink:0;align-self:center;width:20px;height:20px;margin-top:0;margin-bottom:0;margin-right:10px;transition:all .3s;position:relative}input[type=radio]:hover{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}input[type=radio]:checked{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-color:#667eea}input[type=radio]:checked:after{content:"";background:#fff;border-radius:50%;width:8px;height:8px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.checkbox-group label{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;margin:0;padding:0;line-height:20px;transition:color .3s;display:flex}.checkbox-group:hover label{color:#667eea}button{color:#fff;cursor:pointer;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border:none;border-radius:8px;margin-right:10px;padding:12px 30px;font-size:16px;font-weight:600;transition:transform .2s,box-shadow .2s}button:hover{transform:translateY(-2px);box-shadow:0 5px 15px #667eea66}button:active{transform:translateY(0)}.result-box{word-break:break-all;background:#f8f9fa;border:2px solid #e0e0e0;border-radius:8px;margin-top:20px;padding:20px;font-family:Courier New,monospace;font-size:18px;position:relative}.copy-btn{padding:8px 15px;font-size:14px;position:absolute;top:10px;right:10px}.strength-indicator{gap:5px;margin-top:15px;display:flex}.strength-bar{background:#e0e0e0;border-radius:4px;flex:1;height:8px;transition:background-color .3s}.strength-bar.active{background:#4caf50}.strength-bar.medium{background:#ff9800}.strength-bar.weak{background:#f44336}.tools-grid{grid-template-columns:repeat(3,1fr);align-items:stretch;gap:30px;margin-top:30px;display:grid}.tool-link{color:#333;background:#fffffff2;border-radius:15px;flex-direction:column;height:100%;min-height:140px;padding:20px;text-decoration:none;transition:transform .3s,box-shadow .3s;display:flex;box-shadow:0 5px 15px #0000001a}.tool-link:hover{transform:translateY(-5px);box-shadow:0 10px 25px #0003}.tool-link h3{color:#667eea;flex-shrink:0;margin-bottom:10px;font-size:24px}.tool-link p{color:#666;flex-grow:1;margin:0;line-height:1.6}.qr-preview{background:#f8f9fa;border-radius:8px;justify-content:center;align-items:center;min-height:300px;margin-top:20px;padding:20px;display:flex}.qr-preview canvas{max-width:100%;height:auto}.lang-switcher select{cursor:pointer;border:2px solid #e0e0e0;border-radius:6px;padding:8px 12px;font-size:14px}@media (width<=1024px){.tools-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=768px){.tool-card{padding:20px}h1{font-size:24px}h2{font-size:20px}.tools-grid{grid-template-columns:1fr}}@keyframes fadeInOut{0%{opacity:0;transform:translateY(-10px)}15%{opacity:1;transform:translateY(0)}85%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-10px)}}.footer{background:#fffffff2;border-radius:10px;margin-top:40px;padding:20px 30px;box-shadow:0 4px 6px #0000001a}.footer-content{flex-wrap:wrap;justify-content:center;align-items:center;gap:30px;display:flex}.footer-content a{color:#667eea;font-size:14px;font-weight:500;text-decoration:none;transition:color .3s}.footer-content a:hover{color:#764ba2}@media (width<=768px){.footer{padding:15px 20px}.footer-content{gap:20px;font-size:12px}.footer-content a{font-size:12px}}:root{--ink:#23243a;--muted:#626779;--accent:#5549bf;--surface:#fff;--line:#e6e6ef;--canvas:#f6f6fa}body{background:var(--canvas);color:var(--ink);padding:0 24px}.container{max-width:1120px}.site-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;min-height:84px;margin-bottom:32px;display:flex}.brand{letter-spacing:-.04em;color:var(--ink);align-items:center;gap:10px;font-size:20px;font-weight:750;text-decoration:none;display:inline-flex}.brand-symbol{background:var(--accent);color:#fff;border-radius:10px;place-items:center;width:34px;height:34px;font-size:22px;display:grid}.header-actions{align-items:center;gap:22px;display:flex}.home-link{color:var(--accent);font-size:14px;font-weight:600;text-decoration:none}.lang-switcher select{color:var(--ink);background:#fff;border:1px solid #dcdde7;border-radius:8px}.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:0 8px 30px #23243a0a}h1{color:var(--ink);letter-spacing:-.035em}h2{color:var(--ink)}button{background:var(--accent)}button:hover{box-shadow:0 5px 15px #5549bf38}button:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}input[type=text]:focus,input[type=number]:focus,textarea:focus{border-color:var(--accent)}:focus-visible{outline-offset:3px;outline:3px solid #8e85ed}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.home-hero{max-width:720px;padding:16px 0 28px}.eyebrow{color:var(--accent);letter-spacing:.14em;font-size:11px;font-weight:750}.home-hero h1{margin:16px 0 14px;font-size:clamp(38px,5vw,58px);line-height:1.1}.home-hero p{color:var(--muted);font-size:17px;line-height:1.6}.category-nav{box-shadow:none;background:0 0;flex-wrap:wrap;justify-content:flex-start;gap:8px;margin:0;padding:0 0 30px;display:flex}.category-nav a{color:#555a6c;border:1px solid var(--line);background:#fff;border-radius:99px;padding:8px 14px;font-size:13px;font-weight:600;text-decoration:none}.category-nav a:hover{color:var(--accent);border-color:#b8b2ed}.home-group{margin:0 0 40px;scroll-margin-top:20px}.section-heading{border-bottom:1px solid var(--line);align-items:baseline;gap:10px;padding-bottom:12px;display:flex}.section-heading h2{margin:0;font-size:19px}.section-heading span{color:#9699a7;font-size:12px}.tools-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:16px}.tool-link{border:1px solid var(--line);min-height:160px;box-shadow:none;background:#fff;border-radius:12px;padding:20px;transition:border-color .2s,transform .2s,box-shadow .2s}.tool-link:hover{border-color:#b8b2ed;transform:translateY(-3px);box-shadow:0 8px 24px #23243a12}.tool-link-top{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.tool-mark{width:32px;height:32px;color:var(--accent);background:#f0eefe;border-radius:9px;place-items:center;font-size:13px;font-weight:750;display:grid}.tool-arrow{color:#999bae;font-size:18px}.tool-link h3{color:var(--ink);margin-bottom:6px;font-size:16px}.tool-link p{color:var(--muted);font-size:13px;line-height:1.55}.footer{border-top:1px solid var(--line);box-shadow:none;background:0 0;border-radius:0;margin-top:48px;padding:26px 0 34px}.footer-content a{color:var(--muted)}@media (width<=768px){body{padding:0 18px}.site-header{min-height:70px;margin-bottom:20px}.header-actions{gap:10px}.home-hero{padding:20px 0 24px}.tools-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-card{padding:22px}}@media (width<=480px){.tools-grid{grid-template-columns:1fr}.tool-link{min-height:0}.home-link{font-size:12px}}.mode-picker{border:0;flex-wrap:wrap;gap:4px 16px;display:flex}.mode-picker legend{color:#555;margin-bottom:8px;font-weight:600}.mode-picker .checkbox-group{margin:0;padding-left:0}.converter-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.converter-grid textarea{resize:vertical;min-height:180px}.converter-result{border:1px solid var(--line);background:#f8f8fb;min-height:180px;margin-top:0;font-size:14px}.converter-output{white-space:pre-wrap;padding:42px 0 0}.result-placeholder{color:#85899a;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}@media (width<=768px){.converter-grid{grid-template-columns:1fr;gap:0}}.scanner-mode{border:0}.scanner-mode legend{color:#555;margin-bottom:8px;font-weight:600}.segmented-control{background:#f0eff8;border-radius:10px;flex-wrap:wrap;gap:4px;padding:4px;display:inline-flex}.segmented-control button{color:#555a6c;box-shadow:none;background:0 0;margin:0;padding:9px 16px;font-size:14px}.segmented-control button[aria-pressed=true]{color:var(--accent);background:#fff;box-shadow:0 1px 5px #23243a1f}.segmented-control button:hover{transform:none}.scanner-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:20px;display:grid}.scanner-panel{border:1px solid var(--line);background:#f8f8fb;border-radius:10px;min-width:0;padding:20px}.scanner-hint{color:var(--muted);margin-bottom:16px;font-size:14px;line-height:1.6}.button-label{background:var(--accent);color:#fff;cursor:pointer;border-radius:8px;padding:12px 30px;font-weight:600;display:inline-block}.button-label:hover{box-shadow:0 5px 15px #5549bf38}#qr-file-input:focus-visible+.button-label{outline-offset:3px;outline:3px solid #8e85ed}.scanner-reader:not(:empty){border-radius:8px;width:100%;margin-top:20px;overflow:hidden}.scanner-reader video{max-width:100%}.scanner-result textarea{resize:vertical;min-height:180px;font-family:monospace}.scanner-result-actions{flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;display:flex}.status-error{color:#a52339;background:#fff1f2;border:1px solid #f4c9d0;border-radius:8px;margin-top:16px;padding:12px;font-size:14px}.copy-error{color:#a52339;font-size:14px}@media (width<=768px){.scanner-grid{grid-template-columns:1fr}}.tool-description{color:var(--muted);margin-bottom:30px;line-height:1.6}.tool-mode{border:0}.tool-mode legend{color:#555;margin-bottom:8px;font-weight:600}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:20px;display:grid}.tool-grid textarea{resize:vertical;min-height:180px}.tool-result textarea{font-family:monospace}.tool-result-actions{flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;display:flex}.tool-file-input:focus-visible+.button-label{outline-offset:3px;outline:3px solid #8e85ed}@media (width<=768px){.tool-grid{grid-template-columns:1fr}}.qr-scanner-page{padding:clamp(24px,4vw,44px)}.qr-scanner-page .tool-description{max-width:620px;margin-bottom:30px}.qr-scanner-page .tool-mode{margin-bottom:28px}.qr-scanner-page .tool-mode legend{color:var(--muted);font-size:13px}.qr-workspace{border:1px solid var(--line);border-radius:14px;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);display:grid;overflow:hidden}.qr-capture,.qr-output{min-width:0;padding:26px}.qr-capture{border-right:1px solid var(--line);background:#fafaff}.qr-output{background:#fff}.qr-capture-heading{align-items:center;gap:10px;margin-bottom:18px;display:flex}.qr-capture-heading h2{margin:0;font-size:16px;font-weight:700}.qr-step{width:28px;height:28px;color:var(--accent);background:#eeecfb;border-radius:8px;place-items:center;font-size:11px;font-weight:700;display:grid}.qr-viewfinder{background:#f0effa;border:1px solid #e4e1f4;border-radius:10px;place-items:center;min-height:225px;display:grid;overflow:hidden}.qr-viewfinder-empty,.qr-frame{place-items:center;display:grid}.qr-frame{width:124px;height:124px;color:var(--accent);background:#ffffffb3;border:1px solid #d9d5f2;border-radius:20px}.qr-frame svg{width:68px;height:68px}.qr-viewfinder .scanner-reader{width:100%;margin:0}.qr-viewfinder .scanner-reader:empty{display:none}.qr-viewfinder.is-active{background:#252435}.qr-capture .scanner-hint{margin:17px 0 14px}.qr-capture-actions button,.qr-capture-actions .button-label{margin:0}.qr-output-hint{color:var(--muted);margin-bottom:18px;font-size:14px;line-height:1.6}.qr-output .tool-result label{font-size:13px}.qr-output .tool-result textarea{border:1px solid var(--line);background:#fafaff;font-size:14px;line-height:1.6}.qr-output .tool-result-actions{margin-top:16px}@media (width<=768px){.qr-workspace{grid-template-columns:1fr}.qr-capture{border-right:0;border-bottom:1px solid var(--line)}.qr-capture,.qr-output{padding:20px}.qr-viewfinder{min-height:190px}}.qr-viewfinder .scanner-reader,.qr-viewfinder-empty{grid-area:1/1}.qr-viewfinder .scanner-reader:empty{height:0;display:block}.dicom-notice{color:#60491f;background:#fffaf0;border:1px solid #eeddbd;border-radius:10px;padding:14px 16px;font-size:14px;line-height:1.55}.dicom-notice p,.dicom-metadata p{margin:5px 0 0}.dicom-privacy{color:var(--muted);margin:16px 0 24px;font-size:14px;line-height:1.6}.dicom-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;display:grid}.dicom-grid h2{margin:0 0 16px;font-size:18px}.dicom-preview{border:1px solid var(--line);min-height:240px;color:var(--muted);background:#f8f8fb;border-radius:10px;justify-content:center;align-items:center;display:flex;overflow:hidden}.dicom-preview img{object-fit:contain;max-width:100%;max-height:340px;display:block}.dicom-file-actions{flex-wrap:wrap;align-items:center;gap:12px;margin-top:16px;display:flex}.dicom-file-name{overflow-wrap:anywhere;color:var(--muted);font-size:14px}.dicom-caption{color:var(--muted);margin:12px 0 20px;font-size:13px;line-height:1.6}.dicom-metadata{border:1px solid var(--line);background:#f8f8fb;border-radius:10px;margin-bottom:20px;padding:16px;font-size:14px;line-height:1.6}@media (width<=768px){.dicom-grid{grid-template-columns:1fr}.dicom-preview{min-height:180px}}.bmi-intro{color:var(--muted);margin-bottom:24px;font-size:14px;line-height:1.6}.bmi-result{border:1px solid var(--line);background:#f8f8fb;border-radius:12px;min-height:200px;padding:24px}.bmi-result h2,.bmi-explanation h2{margin:0 0 16px;font-size:18px}.bmi-value{color:var(--accent);font-size:36px;font-weight:700;line-height:1.2}.bmi-value span{color:var(--muted);font-size:14px;font-weight:500}.bmi-category{margin:10px 0;font-weight:600}.bmi-rounding,.bmi-placeholder{color:var(--muted);font-size:14px;line-height:1.6}.bmi-explanation{border-top:1px solid var(--line);color:var(--muted);margin-top:30px;padding-top:24px;font-size:14px;line-height:1.7}.bmi-explanation p{margin-bottom:10px}.bmi-explanation a{color:var(--accent)}