:root{--primary-color: #4361ee;--secondary-color: #3a0ca3;--accent-color: #f72585;--background-color: #f8f9fa;--text-color: #2b2d42;--error-color: #ef233c;--success-color: #2a9d8f;--border-radius: 8px;--shadow: 0 4px 6px rgba(0, 0, 0, .1);--transition: all .3s ease;--card-bg: #ffffff;--border-color: #ddd;--focus-outline: 3px solid #4361ee;--focus-outline-color: #ffdd00;--focus-outline-width: 3px;--focus-outline-offset: 3px;--container-width: min(1200px, 94%);--primary-color-hover: #3a52d8;--focus-color: var(--focus-outline-color);font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%;--text-spacing-medium: .05em;--text-spacing-large: .1em;--preview-shadow: 0 4px 12px rgba(0, 0, 0, .15), 0 1px 3px rgba(0, 0, 0, .1);--preview-shadow-hover: 0 8px 20px rgba(0, 0, 0, .25), 0 0 0 2px rgba(67, 97, 238, .3);--preview-info-bg: transparent;--preview-info-bg-hover: rgba(67, 97, 238, .12);--preview-border: rgba(67, 97, 238, .1);--preview-border-hover: rgba(67, 97, 238, .4);--preview-remove-bg: rgba(255, 255, 255, .8);--preview-remove-bg-hover: #ef233c;--preview-remove-shadow: 0 2px 5px rgba(0, 0, 0, .2)}@media(prefers-color-scheme:dark){:root{--background-color: #121212;--text-color: #ffffff;--card-bg: #1e1e1e;--border-color: #666666;--shadow: 0 4px 6px rgba(0, 0, 0, .3);--focus-outline-color: #ffee00;--primary-color-hover: #6e87ff;--primary-color: #748fff;--preview-shadow: 0 4px 12px rgba(0, 0, 0, .3), 0 1px 3px rgba(0, 0, 0, .2);--preview-shadow-hover: 0 10px 30px rgba(0, 0, 0, .6), 0 0 0 2px rgba(116, 143, 255, .5);--preview-info-bg-hover: rgba(116, 143, 255, .2);--preview-border-hover: rgba(116, 143, 255, .6);--preview-remove-bg: rgba(255, 255, 255, .8);--preview-remove-shadow: 0 2px 8px rgba(239, 35, 60, .4)}.header p{color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.5)}.skip-link{background:#1676f3;color:#fff;font-weight:700}}*{margin:0;padding:0;box-sizing:border-box}body{display:flex;flex-direction:column;min-height:100vh;background-color:var(--background-color);color:var(--text-color);transition:background-color var(--transition-speed),color var(--transition-speed);scrollbar-gutter:stable}.app-container{width:var(--container-width);margin:0 auto;padding:1rem;container-type:inline-size;container-name:main-container}@media(min-width:768px){.app-container{padding:2rem}}.skip-link{position:absolute;top:-50px;left:0;background:#0041a3;color:#fff;padding:10px 15px;z-index:1000;text-decoration:none;border-radius:0 0 var(--border-radius) 0;transition:top .2s ease;font-weight:700;box-shadow:0 2px 4px #0000004d}.skip-link:focus{top:0;outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:var(--focus-outline-offset)}.header{text-align:center;margin-block-end:2rem}.header h1{font-size:clamp(1.75rem,5cqi,2.5rem);color:var(--primary-color);margin-block-end:.5rem}.header p{font-size:clamp(1rem,3cqi,1.1rem);color:#333;font-weight:600}.converter-container{display:flex;flex-direction:column;gap:2rem;background-color:var(--card-bg);border-radius:var(--border-radius);padding:1rem;box-shadow:var(--shadow)}@media(min-width:768px){.converter-container{padding:2rem}}.dropzone{position:relative;aspect-ratio:16 / 9;min-height:200px;border:2px dashed var(--border-color);border-radius:var(--border-radius);display:flex;align-items:center;justify-content:center;transition:all .3s cubic-bezier(.25,.8,.25,1);overflow:hidden;cursor:pointer;background-color:#00000003;box-shadow:inset 0 0 0 1px #0000}.dropzone:hover{border-color:var(--primary-color);background-color:#4361ee08;transform:translateY(-2px);box-shadow:0 4px 8px #0000000d}.dropzone.drag-active{border-color:var(--primary-color);background-color:#4361ee0d;transform:scale(1.01);box-shadow:0 6px 12px #00000014}.dropzone:focus-visible{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:4px;border-color:var(--primary-color);transform:translateY(-2px)}.dropzone-content{text-align:center;padding:1.5rem;z-index:1;pointer-events:none;transition:transform .3s ease}.dropzone:hover .dropzone-content{transform:scale(1.02)}.dropzone-content svg{width:48px;height:48px;color:var(--primary-color);margin-bottom:1rem;transition:transform .3s ease}.dropzone:hover .dropzone-content svg{transform:translateY(-5px)}.file-input{position:absolute;width:100%;height:100%;top:0;left:0;opacity:0;cursor:pointer;z-index:-1}.preview-area{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;container-type:inline-size}.preview-item{position:relative;border:none;border-radius:var(--border-radius);overflow:hidden;box-shadow:var(--preview-shadow);display:grid;grid-template-rows:200px auto;background-color:var(--card-bg);transition:all .3s cubic-bezier(.25,.8,.25,1);cursor:pointer;transform-origin:center bottom}.preview-item:hover{transform:translateY(-5px) scale(1.02);box-shadow:var(--preview-shadow-hover)}.preview-item:focus-visible{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:4px;transform:translateY(-5px)}.preview-item img{width:100%;height:200px;object-fit:cover;background-color:#f0f0f0;grid-row:1;transition:all .3s ease;content-visibility:auto;contain:paint}.preview-item:hover img{transform:scale(1.05)}.preview-info{padding:.75rem;background-color:var(--preview-info-bg);grid-row:2;transition:all .3s ease;border-top:2px solid var(--preview-border)}.preview-item:hover .preview-info{background-color:var(--preview-info-bg-hover);border-top-color:var(--preview-border-hover)}.preview-name{font-weight:600;margin-bottom:.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-color);transition:color .3s ease}.preview-item:hover .preview-name{color:var(--primary-color);font-weight:700}.preview-meta{font-size:.85rem;color:#666;display:flex;justify-content:space-between;transition:color .3s ease}.preview-item:hover .preview-meta{color:var(--primary-color);font-weight:600}.remove-image-btn{position:absolute;top:8px;right:8px;width:32px;height:32px;background-color:var(--preview-remove-bg);border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transform:scale(.8);transition:all .3s ease;box-shadow:var(--preview-remove-shadow);z-index:2}.preview-item:hover .remove-image-btn,.preview-item:focus-within .remove-image-btn{opacity:1;transform:scale(1);background-color:var(--preview-remove-bg-hover);color:#fff}.remove-image-btn:hover{background-color:var(--preview-remove-bg-hover);color:#fff;transform:scale(1.1)}.remove-image-btn:focus{outline:2px solid var(--focus-outline-color);outline-offset:2px;opacity:1}.remove-image-btn svg{width:16px;height:16px;transition:all .3s ease}.preview-item:hover .remove-image-btn svg{transform:rotate(90deg)}.options-panel{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;margin-bottom:1.5rem;container-type:inline-size}.form-group{margin-bottom:1rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500}.form-select,.form-input{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:1rem;transition:all .3s ease;background-color:var(--card-bg);color:var(--text-color);box-shadow:0 1px 3px #0000000d}.form-select:hover,.form-input:hover{border-color:var(--primary-color)}.form-select:focus,.form-input:focus{border-color:var(--primary-color);outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:1px;box-shadow:0 2px 5px #4361ee1a}.form-range{width:100%;appearance:none;height:8px;border-radius:4px;background:linear-gradient(to right,#4361ee4d,#4361ee1a);outline:none;transition:all .3s ease;margin:10px 0}.form-range::-webkit-slider-thumb{appearance:none;width:20px;height:20px;border-radius:50%;background:var(--primary-color);cursor:pointer;transition:all .3s ease;box-shadow:0 1px 3px #0003}.form-range::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--primary-color);cursor:pointer;transition:all .3s ease;box-shadow:0 1px 3px #0003;border:none}.form-range::-webkit-slider-thumb:hover{background:var(--secondary-color);transform:scale(1.1);box-shadow:0 2px 5px #0000004d}.form-range::-moz-range-thumb:hover{background:var(--secondary-color);transform:scale(1.1);box-shadow:0 2px 5px #0000004d}.form-range:focus{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:1px}.form-check-input{margin-right:.5rem;width:18px;height:18px;accent-color:var(--primary-color);cursor:pointer;transition:all .2s ease}.form-check-input:checked{transform:scale(1.05)}.form-check-label{cursor:pointer;-webkit-user-select:none;user-select:none;transition:all .2s ease}.form-check:hover .form-check-label{color:var(--primary-color)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;border:none;border-radius:var(--border-radius);cursor:pointer;transition:all .3s cubic-bezier(.25,.8,.25,1);position:relative;overflow:hidden}.btn:after{content:"";position:absolute;top:50%;left:50%;width:5px;height:5px;background:#ffffff80;opacity:0;border-radius:100%;transform:scale(1) translate(-50%,-50%);transform-origin:50% 50%}@keyframes ripple{0%{transform:scale(0);opacity:.5}to{transform:scale(80);opacity:0}}.btn:focus:not(:active):after{animation:ripple .8s ease-out}.btn-primary{background-color:var(--primary-color);color:#fff;box-shadow:0 2px 4px #4361ee33;font-weight:600}@media(prefers-color-scheme:dark){.btn-primary{background-color:#2770e8;border:1px solid rgba(255,255,255,.2)}}.btn-primary:hover{background-color:var(--secondary-color);transform:translateY(-2px);box-shadow:0 4px 8px #4361ee4d}.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px #4361ee33}.btn-outline{background-color:transparent;border:1px solid var(--primary-color);color:var(--primary-color)}.btn-outline:hover{background-color:var(--primary-color);color:#fff;transform:translateY(-2px);box-shadow:0 4px 8px #4361ee33}.btn-outline:active{transform:translateY(0);box-shadow:0 1px 2px #4361ee1a}.btn svg{margin-right:.5rem}.message{padding:1rem;border-radius:var(--border-radius);margin-bottom:1rem;animation:fadeIn .3s ease}.message-error{background-color:#ef233c1a;color:var(--error-color);border-left:4px solid var(--error-color)}.message-success{background-color:#2a9d8f1a;color:var(--success-color);border-left:4px solid var(--success-color)}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){.app-container{padding:1rem}.converter-container{padding:1.5rem}.options-panel{grid-template-columns:1fr}}:focus{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:var(--focus-outline-offset)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.spinner{animation:rotate 2s linear infinite;width:18px;height:18px;margin-right:8px}.spinner circle{stroke-linecap:round;animation:dash 1.5s ease-in-out infinite}@keyframes rotate{to{transform:rotate(360deg)}}@keyframes dash{0%{stroke-dasharray:1,150;stroke-dashoffset:0}50%{stroke-dasharray:90,150;stroke-dashoffset:-35}to{stroke-dasharray:90,150;stroke-dashoffset:-124}}.downloads-container{background-color:#4361ee0d;border:1px solid rgba(67,97,238,.2);border-radius:var(--border-radius);padding:1.25rem;margin-bottom:0;width:100%;max-width:600px}.downloads-container h3{color:var(--primary-color);margin-bottom:1rem;font-size:1.2rem;text-align:center}.downloads-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}.downloads-list li{margin-bottom:0;background:var(--card-bg);border-radius:var(--border-radius);transition:var(--transition);overflow:hidden;box-shadow:0 1px 3px #0000000d}.downloads-list li:hover{transform:translateY(-2px);box-shadow:0 3px 6px #0000001a}.download-link{display:flex;align-items:center;color:var(--primary-color);text-decoration:none;transition:var(--transition);padding:.75rem 1rem;width:100%}.download-link:hover{color:var(--secondary-color);background-color:#4361ee08}.download-link svg{margin-right:.75rem;min-width:16px;flex-shrink:0}.dimensions-wrapper{padding:.5rem 0}.dimensions-container{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}fieldset{border:1px solid var(--border-color);border-radius:var(--border-radius);padding:1.25rem;margin-bottom:1rem}legend{padding:0 .5rem;font-weight:500;color:var(--text-color)}.form-check{display:flex;align-items:center;margin-bottom:.5rem}.form-check-input{margin-right:.5rem;width:16px;height:16px}.form-range{width:100%;appearance:none;height:8px;border-radius:4px;background:#ddd;outline:none;transition:var(--transition)}.form-range::-webkit-slider-thumb{appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary-color);cursor:pointer;transition:var(--transition)}.form-range::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--primary-color);cursor:pointer;transition:var(--transition)}.form-range::-webkit-slider-thumb:hover{background:var(--secondary-color)}.form-range::-moz-range-thumb:hover{background:var(--secondary-color)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:var(--focus-outline-offset)}.no-images{display:flex;align-items:center;justify-content:center;height:150px;background-color:var(--background-color);border-radius:var(--border-radius);border:2px dashed var(--border-color);color:var(--text-color)}.action-container{display:flex;flex-direction:column;align-items:center;margin-top:1.5rem;gap:1.5rem}.convert-btn{min-width:200px;height:48px;font-size:1.1rem;padding:.75rem 2rem;display:flex;align-items:center;justify-content:center;background-image:linear-gradient(135deg,var(--primary-color),var(--secondary-color));background-size:200% 100%;background-position:0% 0%;transition:all .3s ease,background-position .5s ease;box-shadow:0 4px 15px #4361ee33}.convert-btn:hover{background-position:100% 0%;box-shadow:0 6px 20px #4361ee4d;transform:translateY(-2px)}.preview-section{margin:2rem 0;container-type:inline-size}.preview-section h2{margin-bottom:1rem;color:var(--text-color)}.options-container h2{margin-bottom:1.5rem;color:var(--text-color)}.dropzone:focus-visible{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:4px;border-color:var(--primary-color)}@media(max-width:768px){.downloads-container{max-width:100%}.convert-btn{width:100%}}@media(forced-colors:active){.dropzone{border:2px solid ButtonText}.btn{border:1px solid ButtonText}.a11y-button{border:2px solid ButtonText;background-color:ButtonFace;color:ButtonText}}:focus-visible{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:var(--focus-outline-offset)}.status-updating{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@media(hover:none){.dropzone-content{padding:1rem}.dropzone-content h2{font-size:1.2rem}.btn{padding:.875rem 1rem;min-height:44px}}body.high-contrast{--primary-color: #0055ff;--secondary-color: #0044cc;--background-color: #ffffff;--text-color: #000000;--error-color: #cc0000;--success-color: #006600;--card-bg: #ffffff;--border-color: #000000;--focus-outline: 3px solid #0055ff;--primary-color-hover: #003cbd}body.high-contrast .dropzone{border:3px solid #000000}body.high-contrast .btn{border:2px solid #000000}body.high-contrast .btn-primary{background-color:#05f;color:#fff}body.high-contrast .preview-item{border:2px solid #000000}body.high-contrast .a11y-dialog{background-color:#000;color:#fff;border:3px solid white}body.high-contrast .keyboard-shortcuts{background-color:#000;border:2px solid white}body.high-contrast .keyboard-shortcuts kbd{background-color:#000;color:#fff;border:2px solid white;box-shadow:none}body.high-contrast .option-description{color:#fff}body.high-contrast .a11y-option select{background-color:#000;color:#fff;border:2px solid white}body.high-contrast a{color:#ff0!important;text-decoration:underline!important}body.high-contrast img{filter:grayscale(100%) contrast(150%)!important}body.font-size-large{font-size:120%!important}body.font-size-larger{font-size:150%!important}@font-face{font-family:OpenDyslexic;src:url(https://cdn.jsdelivr.net/npm/open-dyslexic@1.0.3/woff/OpenDyslexic-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/open-dyslexic@1.0.3/woff2/OpenDyslexic-Regular.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:OpenDyslexic;src:url(https://cdn.jsdelivr.net/npm/open-dyslexic@1.0.3/woff/OpenDyslexic-Bold.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/open-dyslexic@1.0.3/woff2/OpenDyslexic-Bold.woff2) format("woff2");font-weight:700;font-style:normal;font-display:swap}body.dyslexic-font,body.dyslexic-font button,body.dyslexic-font input,body.dyslexic-font select,body.dyslexic-font textarea,body.dyslexic-font h1,body.dyslexic-font h2,body.dyslexic-font h3,body.dyslexic-font h4,body.dyslexic-font h5,body.dyslexic-font h6,body.dyslexic-font p,body.dyslexic-font li,body.dyslexic-font label{font-family:OpenDyslexic,sans-serif!important}body.reduced-motion,body.reduced-motion *{transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}body.text-spacing-medium{letter-spacing:var(--text-spacing-medium)!important;word-spacing:var(--text-spacing-medium)!important}body.text-spacing-large{letter-spacing:var(--text-spacing-large)!important;word-spacing:var(--text-spacing-large)!important;line-height:1.8!important}a:focus,button:focus,input:focus,select:focus,textarea:focus,[tabindex]:focus{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:var(--focus-outline-offset)}body.touch-device button,body.touch-device a,body.touch-device [role=button],body.touch-device input[type=checkbox],body.touch-device input[type=radio]{min-height:44px;min-width:44px}.a11y-button{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background-color:var(--primary-color);color:#fff;border:none;box-shadow:0 3px 10px #00000040;cursor:pointer;z-index:9999;display:flex;align-items:center;justify-content:center;transition:all .3s cubic-bezier(.175,.885,.32,1.275);overflow:hidden;padding:0}.a11y-button:before{content:"";position:absolute;width:100%;height:100%;background-color:#fff6;border-radius:50%;transform:scale(0);opacity:0;transition:transform .5s,opacity .3s}.a11y-button:active:before{transform:scale(2);opacity:0;transition:0s}.a11y-button:hover{background-color:var(--primary-color-hover);transform:translateY(-2px);box-shadow:0 6px 12px #00000040}.a11y-button:focus{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:var(--focus-outline-offset);box-shadow:0 6px 12px #0000004d;transform:translateY(-2px)}.a11y-button:focus:not(:focus-visible){outline:none}.a11y-button:focus-visible{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:var(--focus-outline-offset)}.a11y-button:active{transform:scale(.95)}.a11y-button svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}@media(max-width:768px){.a11y-button{bottom:16px;right:16px;width:48px;height:48px}.a11y-button svg{width:24px;height:24px}}.save-confirm.fade-out{opacity:0;transform:translateY(-50%) scale(.8);transition:opacity .3s ease,transform .3s ease}.a11y-dialog>.save-confirm.fade-out{transform:scale(.8)}.save-confirm{position:absolute;top:50%;right:10px;transform:translateY(-50%);background-color:var(--success-color);color:#fff;padding:8px;border-radius:50%;box-shadow:0 4px 15px #0003;z-index:10001;animation:confirmFade 1.5s ease forwards;display:flex;align-items:center;justify-content:center}.a11y-dialog>.save-confirm{position:fixed;top:24px;right:24px;transform:none}.save-confirm svg{width:20px;height:20px;stroke:#fff;stroke-width:3}@keyframes confirmFade{0%{opacity:0;transform:translateY(-50%) scale(.7)}20%{opacity:1;transform:translateY(-50%) scale(1.1)}30%{transform:translateY(-50%) scale(1)}80%{opacity:1}to{opacity:0;transform:translateY(-50%) scale(.9)}}.a11y-option{position:relative;display:grid;grid-template-columns:1fr;gap:8px;padding:8px;border-radius:var(--border-radius);transition:background-color .2s ease}.a11y-dialog{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--card-bg);color:var(--text-color);padding:28px;border-radius:12px;z-index:10000;width:90%;max-width:650px;box-shadow:var(--shadow),0 10px 25px #0000001a;max-height:90vh;overflow-y:auto;contain:layout;content-visibility:auto;animation:dialogEntrance .3s cubic-bezier(.175,.885,.32,1.275)}@keyframes dialogEntrance{0%{opacity:0;transform:translate(-50%,-45%)}to{opacity:1;transform:translate(-50%,-50%)}}.a11y-dialog-content{position:relative}.a11y-dialog h2{margin-top:0;margin-bottom:24px;color:var(--primary-color);font-size:1.5rem;border-bottom:2px solid var(--border-color);padding-bottom:15px}.a11y-dialog button[id=close-a11y-dialog]{position:absolute;top:0;right:-4px;background:transparent;border:none;cursor:pointer;width:40px;height:40px;display:flex;align-items:center;justify-content:center;color:var(--text-color);border-radius:50%;transition:background-color .2s ease,transform .2s ease;padding:0;z-index:1}.a11y-dialog button[id=close-a11y-dialog]:hover{background-color:#0000001a;transform:rotate(90deg)}.a11y-dialog button[id=close-a11y-dialog]:focus{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:var(--focus-outline-offset);background-color:#0000000d}.a11y-dialog button[id=close-a11y-dialog] svg{width:24px;height:24px}.a11y-options{display:grid;gap:22px;margin-bottom:28px}.a11y-option{display:grid;grid-template-columns:1fr;gap:8px;padding:8px;border-radius:var(--border-radius);transition:background-color .2s ease}.a11y-option:hover{background-color:#4361ee0d}.a11y-option label{font-weight:600;display:flex;align-items:center;gap:10px;cursor:pointer}.a11y-option select{padding:12px;border-radius:8px;border:1px solid var(--border-color);background-color:var(--card-bg);font-size:.95rem;width:100%;cursor:pointer;color:var(--text-color);transition:border-color .2s ease,box-shadow .2s ease}.a11y-option select:hover{border-color:var(--primary-color)}.a11y-option select:focus{border-color:var(--primary-color);outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:1px;box-shadow:0 0 0 1px var(--primary-color)}.a11y-option input[type=checkbox]{width:20px;height:20px;accent-color:var(--primary-color);cursor:pointer;margin:0}.option-description{font-size:.85rem;color:#666;margin-left:30px;line-height:1.4}.keyboard-shortcuts{background-color:#4361ee0d;border-radius:10px;padding:20px;margin-top:24px;box-shadow:inset 0 0 0 1px #4361ee1a;transition:box-shadow .3s ease}.keyboard-shortcuts:hover{box-shadow:inset 0 0 0 1px #4361ee33}.keyboard-shortcuts h3{margin-top:0;font-size:1.1rem;color:var(--primary-color);margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid rgba(67,97,238,.1)}.keyboard-shortcuts ul{list-style-type:none;padding-left:0;margin:0;display:grid;gap:14px}.keyboard-shortcuts li{margin-bottom:0;display:flex;flex-wrap:wrap;font-size:.95rem;align-items:center;padding:6px 8px;border-radius:6px;transition:background-color .2s ease}.keyboard-shortcuts li:hover{background-color:#4361ee0d}.keyboard-shortcuts kbd{display:inline-flex;align-items:center;justify-content:center;background-color:#f8f9fa;border:1px solid #d1d1d1;border-radius:4px;box-shadow:0 2px #0000001a;color:#333;font-family:monospace;font-size:.9em;font-weight:700;line-height:1;padding:6px 8px;min-width:28px;text-align:center;margin:0 4px;transition:all .2s ease}.keyboard-shortcuts li:hover kbd{transform:translateY(-1px);box-shadow:0 3px #0000001a}.shortcut-note{font-size:.9rem;margin-top:16px;color:#4a4a4a;font-weight:500;font-style:italic;padding:10px;background-color:#ffffff80;border-radius:6px;text-align:center;border:1px dashed rgba(67,97,238,.2)}@media(prefers-color-scheme:dark){.shortcut-note{background-color:#0003;color:#e0e0e0;border-color:#4361ee4d}}@media(max-width:768px){.a11y-dialog{padding:24px 16px;width:95%}.a11y-options{gap:16px}.option-description{margin-left:0}.a11y-option label{font-size:.95rem}.keyboard-shortcuts li{font-size:.9rem;margin-bottom:12px}.a11y-dialog h2{padding-right:36px}}@media(prefers-color-scheme:dark){.keyboard-shortcuts{background-color:#4361ee1a}.keyboard-shortcuts kbd{background-color:#333;border-color:#555;color:#f0f0f0;box-shadow:0 1px 1px #ffffff1a}.option-description,.shortcut-note{color:#e0e0e0}}.image-placeholder{width:100%;height:200px;background:linear-gradient(110deg,#ececec 8%,#f5f5f5 18%,#ececec 33%);background-size:200% 100%;animation:1.5s shine linear infinite;border-radius:var(--border-radius) var(--border-radius) 0 0}@keyframes shine{to{background-position-x:-200%}}@supports (view-transition-name: none){.preview-item{view-transition-name:image-item}.preview-item img{view-transition-name:image}}.loading-state{min-height:200px;display:grid;place-items:center}body{--wcag-normal-text-contrast-ratio: 4.5;--wcag-large-text-contrast-ratio: 3}:where(.preview-item,.form-select,.form-input,.btn,.dropzone){transition-behavior:normal;transition-timing-function:ease(.25,.1,.25,1)}.a11y-option:has(input[type=checkbox]:checked){background-color:#4361ee0d;padding:8px;border-radius:var(--border-radius)}.a11y-dialog{anchor-name:--a11y-dialog;position-anchor:--a11y-dialog}@container main-container (min-width: 768px){.options-panel{grid-template-columns:repeat(3,1fr)}}.app-header{position:sticky;top:0;z-index:100;display:flex;justify-content:flex-end;padding:.75rem;background-color:var(--background-color);box-shadow:0 2px 5px #0000001a}.app-main{display:flex;flex-direction:column;flex-grow:1;width:100%;max-width:1200px;margin:0 auto;padding:1rem}.app-footer{padding:.75rem;text-align:center;font-size:.875rem}body.high-contrast .a11y-button{background-color:#05f;color:#fff;border:2px solid #ffffff;box-shadow:0 0 0 2px #000}@media(prefers-color-scheme:dark){.a11y-button{background-color:var(--primary-color);box-shadow:0 3px 10px #00000080}.a11y-button:hover{background-color:var(--primary-color-hover);box-shadow:0 5px 15px #0009}.preview-meta{color:#d0d0d0}.preview-item:hover .preview-name{color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.8);font-weight:700}.preview-item:hover .preview-meta{color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.7);font-weight:600}}