body {
    margin: 0;
    background: #f0f0f0;
    display: flex;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
}

.app-wrapper {
    width: 100%;
    max-width: 414px;
    height: 100%;
    background-color: #EFEFEF;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    position: relative;
    box-sizing: border-box;
}

.search-user {
    position: absolute;
    left: 16px;
    bottom: 18px;
    height: auto;
    width: 23px;
}

.header {
    background-color: #717FC4;
    color: white;
    text-align: center;
    font-weight: bold;
    height: 65px;
    font-size: 20px;
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 414px;
    z-index: 100;
}

.title {
    font-weight: bold;
    font-size: 18px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 13px;
}

.back {
    width: 10px;
    position: absolute;
    left: 17px;
    bottom: 18px;
}

.iframe-wrapper {
    margin-top: 65px;
}