:root {
    color-scheme: light;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100svh;
    display: flex;
    justify-content: center;
    background: #ededed;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
    color: #111316;
}

.page-shell {
    width: 100dvw;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8dvh 24px 48px;
    text-align: center;
    background: url('../images/bg.png') no-repeat center top / cover;
}

.app-header {
    width: min(250px, 78vw);
}

.app-header img {
    width: 100%;
    height: auto;
    display: block;
}

.hidden {
    display: none !important;
}
.btn-primary {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    cursor: pointer;
    background: transparent;
    outline: none;
    border: none;
    z-index: 0;
    color: #fff;
    min-width: clamp(100px, 80dvw, 600px);
    font-size: 20px;
    background: url(../images/button.png) no-repeat center center / contain;
    mix-blend-mode: screen;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    font-weight: 500;
    letter-spacing: 5%;
    transition: transform 0.4s ease;
}
.btn-primary.btn-lg {
    height: 100px;
    background: url(../images/button_l.png) no-repeat center center / contain;
}