*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh}.input-section{display:flex;align-items:center;gap:15px;margin-bottom:30px;flex-wrap:wrap;justify-content:center}.input-section label{font-weight:600;font-size:1.1rem;color:#333}.input-section input,.input-section .size-selector{padding:12px 15px;border:2px solid #ddd;border-radius:8px;font-size:1rem;width:200px;transition:border-color .3s ease;background:#fff}.input-section input:focus,.input-section .size-selector:focus{outline:none;border-color:#667eea}.size-selector{cursor:pointer}.size-selector option{padding:8px}.input-section button{padding:12px 25px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.input-section button:hover{transform:translateY(-2px);box-shadow:0 5px 15px #0003}.input-section button:active{transform:translateY(0)}@media(max-width:768px){.input-section{flex-direction:column;align-items:stretch}.input-section input,.input-section .size-selector,.input-section button{width:100%}.size-selector{font-size:1.1rem;padding:15px}}.results-section{min-height:100px}.size-result{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-top:20px}.size-item{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff;padding:20px;border-radius:10px;text-align:center;box-shadow:0 5px 15px #0000001a;transition:transform .2s ease}.size-item:hover{transform:translateY(-3px)}.size-item h3{font-size:1.2rem;margin-bottom:10px;opacity:.9}.size-item .value{font-size:2rem;font-weight:700;text-shadow:1px 1px 2px rgba(0,0,0,.2)}.error-message{background:#ffebee;color:#c62828;padding:15px;border-radius:8px;border-left:4px solid #c62828;margin-top:20px;font-weight:500}.no-results{text-align:center;color:#666;font-style:italic;padding:20px}@media(max-width:768px){.size-result{grid-template-columns:1fr}}.size-chart{background:#fff;border-radius:15px;padding:30px;box-shadow:0 10px 30px #0003}.size-chart h2{text-align:center;margin-bottom:20px;color:#333;font-size:1.8rem}.table-container{overflow-x:auto}table{width:100%;border-collapse:collapse;margin-top:20px}th,td{padding:12px 15px;text-align:center;border-bottom:1px solid #ddd}th{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-weight:600;position:sticky;top:0}tbody tr{cursor:pointer;transition:background-color .2s ease}tbody tr:hover{background-color:#f8f9ff}tbody tr.highlighted{background-color:#e3f2fd!important;font-weight:700;color:#1976d2}@media(max-width:768px){.size-chart{padding:20px}}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;padding:20px;margin:0}.container{max-width:1000px;margin:0 auto}header{text-align:center;margin-bottom:30px;color:#fff}header h1{font-size:2.5rem;margin-bottom:10px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}header p{font-size:1.1rem;opacity:.9}.converter-card{background:#fff;border-radius:15px;padding:30px;box-shadow:0 10px 30px #0003;margin-bottom:30px}@media(max-width:768px){.container{padding:10px}header h1{font-size:2rem}.converter-card{padding:20px}}