.app-footer{flex-shrink:0;display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background-color:#f8f9fa;border-top:1px solid #e4e6eb;font-size:14px}.footer-links{display:flex;gap:1.5rem}.footer-links a{display:flex;align-items:center;gap:.5rem;color:#65676b;text-decoration:none;transition:color .2s ease}.footer-links a:hover{color:#0a66c2}.footer-credit{color:#65676b}@media (max-width: 600px){.app-footer{flex-direction:column;gap:.75rem;padding:1rem}}html,body,#root{height:100%;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-color:#f0f2f5}.app-container{display:flex;flex-direction:column;height:100%;width:100%;background-color:#fff;box-sizing:border-box}.app-header{flex-shrink:0;padding:1rem 2rem 0;border-bottom:1px solid #e4e6eb}.app-header h1{font-size:20px;color:#0a66c2;text-align:left;margin:0 0 .25rem}.app-header p{font-size:14px;color:#65676b;text-align:left;margin:0 0 1rem}.editor-container{flex-grow:1;display:grid;grid-template-columns:1fr 1fr;gap:2rem;padding:1rem 2rem 1.5rem;overflow:hidden}.input-column,.output-column{display:flex;flex-direction:column;overflow:hidden}.input-column{position:relative}h3{margin:0 0 .75rem;font-size:16px;color:#1c1e21;flex-shrink:0}.text-input,.formatted-text{flex-grow:1;width:100%;padding:12px;border:1px solid #ccd0d5;border-radius:6px;font-size:16px;font-family:inherit;box-sizing:border-box;overflow-y:auto}.text-input{resize:none}.text-input:focus{outline:none;border-color:#0a66c2;box-shadow:0 0 0 2px #0a66c233}.formatted-text{background-color:#f0f2f5;white-space:pre-wrap;word-wrap:break-word}.controls-wrapper{position:relative;margin-top:1rem;flex-shrink:0}.controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(80px,1fr));gap:10px}button{padding:10px 16px;font-size:14px;font-weight:600;border:none;border-radius:6px;cursor:pointer;background-color:#e4e6eb;color:#1c1e21;transition:background-color .2s ease,transform .1s ease}button:hover{background-color:#d8dbdf}button:active{transform:scale(.98)}.clear-button{background-color:#fbebeb;color:#d93025}.clear-button:hover{background-color:#f8d3d1}.copy-button{background-color:#0a66c2;color:#fff;width:100%;margin-top:1rem;flex-shrink:0}.copy-button:hover{background-color:#004182}.emoji-picker-container{position:absolute;bottom:calc(100% + 8px);left:0;right:0;z-index:10;box-shadow:0 8px 16px #00000026;border-radius:8px}.emoji-picker-react{--epr-emoji-size: 24px !important;height:320px!important;border:none!important}.character-counter{margin-top:1rem;flex-shrink:0}.character-counter p{margin:0 0 4px;text-align:right;font-size:12px}.progress-bar-container{width:100%;height:8px;background-color:#e4e6eb;border-radius:4px;overflow:hidden}.progress-bar{height:100%;border-radius:4px;transition:width .3s ease,background-color .3s ease}@media (max-width: 800px){.app-header,.editor-container{padding-left:1rem;padding-right:1rem}.editor-container{grid-template-columns:1fr;overflow-y:auto}}.undo-button{background-color:#e2f0d9;color:#5a8e42}.undo-button:hover{background-color:#d4e7c8}button:disabled{background-color:#f5f5f5;color:#b0b0b0;cursor:not-allowed;transform:none}