body{font-family:system-ui,sans-serif;background:#faf7f2;margin:0}
#app{max-width:380px;margin:8vh auto;padding:24px;background:#fff;border-radius:16px;box-shadow:0 4px 24px #0001}
h1{font-size:20px;text-align:center}
input{width:100%;box-sizing:border-box;padding:12px;margin:8px 0;border:1px solid #ddd;border-radius:10px;font-size:16px}
.row{display:flex;gap:8px}.row input{flex:1}
button{padding:12px 16px;border:0;border-radius:10px;background:#f5a623;color:#fff;font-size:16px;cursor:pointer}
button:active{opacity:.85}#msg{color:#c00;min-height:20px;font-size:14px}